阅读说明：本技术 一种用于建筑场地保护重要设施安全的围栏地桩 (Fence pile for protecting safety of important facilities in building site ) 是由 席晓婕 于 2021-07-27 设计创作，主要内容包括：本发明提供一种用于建筑场地保护重要设施安全的围栏地桩,包括基体,所述基体的顶部开设有放置口,基体的中部开设有固定槽,固定槽内腔的中部活动安装有缓冲柱,固定槽的底部固定安装有反应气块,条形框内腔顶部的左右两侧均固定安装有齿轮二。通过设置反应气块和开关,安装防护栏时,密封板一在防护栏的重力作用下向下移动,使得密封板二在反应气块内腔的底部向左右移动,利用丝线带动遮板左右移动,以此打开条形框的顶部,同时啮齿二带动齿轮二和齿轮三转动,使得开关上移,便于密封板一的底部按压开关,以此启动外界监控设备,达到在发生外来人员攀爬入侵时,自动启动监控设备,降低建造场所丢失率的效果。(The invention provides a fence pile for protecting safety of important facilities in a building site, which comprises a base body, wherein a placing opening is formed in the top of the base body, a fixing groove is formed in the middle of the base body, a buffer column is movably arranged in the middle of an inner cavity of the fixing groove, a reaction gas block is fixedly arranged at the bottom of the fixing groove, and gears II are fixedly arranged on the left side and the right side of the top of the inner cavity of a strip-shaped frame. Through setting up reaction gas piece and switch, during the installation rail guard, closing plate one is downstream under the action of gravity of rail guard, make closing plate two move to the left and right sides in the bottom of reaction gas piece inner chamber, utilize the silk thread to drive the sunshade and remove, with this top of opening the bar frame, two drive gear two and gear three rotations of rodent simultaneously, make the switch shift up, the bottom press switch of closing plate one of being convenient for, with this external supervisory equipment that starts, reach when taking place the invasion of foreign personnel climbing, the automatic start supervisory equipment, reduce the effect of building the place loss rate.)

1. A rail stake for building site protection important facilities safety, includes base member (1), its characterized in that: the top of base member (1) is seted up and is placed mouth (2), fixed slot (3) have been seted up at the middle part of base member (1), the middle part movable mounting of fixed slot (3) inner chamber has bumping post (4), the bottom fixed mounting of fixed slot (3) has reaction gas piece (5), the equal fixed mounting in the left and right sides at bar frame (505) inner chamber top has two (509) gears, the middle part movable mounting of two (509) gears has axis of rotation (510), the bottom fixed mounting of bar frame (505) inner chamber has stand (511), the left side fixed mounting of stand (511) inner chamber has three (512) of rodent, the bottom movable mounting on stand (511) right side has three (513) gears.

2. A fence pile for the safety of construction site protection critical facilities according to claim 1, wherein: strip-shaped cavities (301) are formed in the left side and the right side of an inner cavity of the fixing groove (3), a rotating shaft (302) is fixedly mounted at the bottom of the inner cavity of the strip-shaped cavities (301), a torsion spring (303) is fixedly mounted in the inner cavity of the rotating shaft (302), a baffle (304) is fixedly mounted on the right side of the rotating shaft (302), and a telescopic push rod (305) is fixedly mounted at the top of the rotating shaft (302).

3. A fence pile for the safety of construction site protection critical facilities according to claim 2, wherein: the top fixed mounting of telescopic push rod (305) has elastic plate (306), the bottom fixed mounting of elastic plate (306) has magnetic path (307), the middle part movable mounting of elastic plate (306) has movable block (308), the equal fixed mounting in the left and right sides at movable block (308) top has rodent one (309), the equal fixed mounting in the left and right sides at elastic plate (306) top middle part has gear one (310), the left side fixed mounting of gear one (310) has squeeze bar (311), the material of elastic plate (306) is elastic material component.

4. A fence pile for the safety of construction site protection critical facilities according to claim 1, wherein: the equal fixed mounting in the left and right sides at buffering post (4) top has buffer spring (401), and movable hole (402) have been seted up at the top of buffering post (4), and the inner chamber movable mounting of movable hole (402) has carriage release lever (403), and the inner chamber fixed mounting at buffering post (4) top has reset spring (404), and the bottom fixed connection of buffer spring (401) and fixed slot (3) inner chamber is passed through to the left and right sides at buffering post (4) top.

5. A fence pile for the safety of construction site protection critical facilities according to claim 1, wherein: reaction gas piece (5) inner chamber's top movable mounting has closing plate one (501), the equal movable mounting in the left and right sides of reaction gas piece (5) inner chamber bottom has closing plate two (502), the right side fixedly connected with silk thread (503) of closing plate two (502), the right side fixed mounting of closing plate two (502) has connecting spring (504), the bottom fixed mounting of reaction gas piece (5) inner chamber has bar frame (505), perforation (506) have all been seted up to the left and right sides at bar frame (505) top, the inner chamber movable mounting of perforation (506) has sunshade board (507), the bottom fixed mounting of sunshade board (507) has rodent two (508), silk thread (503) and closing plate two (502) fixed connection are passed through to the right side of sunshade board (507), the cross-sectional area of closing plate one (501) and the cross-sectional area phase-match at reaction gas piece (5) inner chamber top, the cross-sectional area of closing plate two (502) and the cross-sectional area phase-match of reaction gas piece (5) inner chamber bottom left and right sides.

6. A fence pile for the safety of building site protection critical facilities according to claim 5, characterized in that: the equal fixed mounting in the left and right sides at bar frame (505) inner chamber top has two (509) gears, the middle part movable mounting of two (509) gears has axis of rotation (510), the bottom fixed mounting of bar frame (505) inner chamber has stand (511), the left side fixed mounting of stand (511) inner chamber has three (512) of rodent, the bottom movable mounting on stand (511) right side has three (513) gears, the middle part fixed mounting of bar frame (505) inner chamber bottom has switch (514), switch (514) pass through wire and external supervisory equipment electric connection, the shape size of two (508) of rodent and the shape size phase-match of two (509) gears.

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a fence pile for protecting important facilities and safety of a building site.

Background

In modern society, with the development of times, more and more areas accelerate urbanization construction, various old buildings are gradually dismantled, and then novel safety buildings are rebuilt, or various markets, large-scale sign buildings and the like are built to attract people to live in the living day before, so that various large-scale building facilities are visible everywhere in each city, and various building material transport vehicles run on various roads in the city at a high speed.

Generally, guard rails are arranged around various construction sites, and the purpose of protecting the safety of facilities inside the sites and preventing external people from entering and exiting randomly is to reduce the occurrence rate of accidents, however, most of the guard rails are only installed on stone columns and movably installed with each other, the guard rails are poor in protection effect and cannot prevent people from climbing in and out, so that many construction sites are frequently lost, the process of finding lost objects is complicated because effective monitoring equipment is not available, meanwhile, the stone columns cannot be continuously used after the construction is finished, and sometimes when different guard rails are replaced, the guard rails cannot be fixed due to different shapes and sizes of the bottoms of the guard rails.

Therefore, it is urgently needed to provide a fence ground pile for protecting important facilities and safety of a building site, which is convenient for fixedly mounting guard railings with different sizes and shapes, and can automatically start monitoring when external personnel climb into the guard railing ground pile, so that the loss rate of the building site is reduced.

Disclosure of Invention

In order to solve the technical problems, the invention provides a fence pile for protecting important facilities and safety of a building site, which is achieved by the following specific technical means:

the utility model provides a rail ground stake for building important facility safety of place protection, includes the base member, the top of base member has been seted up and has been placed the mouth, and the fixed slot has been seted up at the middle part of base member, and the middle part movable mounting of fixed slot inner chamber has the buffering post, and the bottom fixed mounting of fixed slot has the reaction gas piece, and the equal fixed mounting in the left and right sides at bar frame inner chamber top has gear two, and the middle part movable mounting of gear two has the axis of rotation, and the bottom fixed mounting of bar frame inner chamber has the stand, and the left side fixed mounting of stand inner chamber has tooth three, and the bottom movable mounting on stand right side has gear three.

Further, the strip-shaped cavity has been all seted up to the left and right sides of fixed slot inner chamber, and the bottom fixed mounting of strip-shaped cavity inner chamber has the rotation axis, and the inner chamber fixed mounting of rotation axis has torque spring, and the right side fixed mounting of rotation axis has the baffle, and the top fixed mounting of rotation axis has flexible push rod to the baffle moves down, drives flexible push rod through the rotation axis and rotates, and when the downward effort of baffle disappears, under torque spring's elastic force effect, flexible push rod and baffle automatic re-setting to the initial position.

Further, telescopic push rod's top fixed mounting has the elastic plate, the bottom fixed mounting of elastic plate has the magnetic path, the middle part movable mounting of elastic plate has the movable block, the equal fixed mounting in the left and right sides at movable block top has tooth one, the equal fixed mounting in the left and right sides at elastic plate top middle part has gear one, the left side fixed mounting of gear one has the stripper bar, the material of elastic plate is the elasticity material component, thereby when the movable block shifts up, drive a rotation of gear through the tooth, make the stripper bar promote the both sides of elastic plate, make the automatic laminating of elastic plate at rail guard bottom surface.

Furthermore, the equal fixed mounting in the left and right sides at buffering capital portion has buffer spring, and the movable hole has been seted up at the top of buffering post, and the inner chamber movable mounting in movable hole has the carriage release lever, and the inner chamber fixed mounting at buffering capital portion has reset spring, and the bottom fixed connection of buffer spring and fixed slot inner chamber is passed through to the left and right sides at buffering capital portion to when the top of buffering post and the bottom contact of rail guard, utilize carriage release lever, buffer spring and reset spring, with this fixed rail guard.

Furthermore, a first sealing plate is movably mounted at the top of the inner cavity of the reaction gas block, a second sealing plate is movably mounted on the left side and the right side of the bottom of the inner cavity of the reaction gas block, a silk thread is fixedly connected to the right side of the second sealing plate, a connecting spring is fixedly mounted on the right side of the second sealing plate, a strip-shaped frame is fixedly mounted at the bottom of the inner cavity of the reaction gas block, through holes are formed in the left side and the right side of the top of the strip-shaped frame, a shielding plate is movably mounted in the inner cavity of the through holes, a second grinding tooth is fixedly mounted at the bottom of the shielding plate, the right side of the shielding plate is fixedly connected with the second sealing plate through the silk thread, the cross sectional area of the first sealing plate is matched with the cross sectional area of the top of the inner cavity of the reaction gas block, the cross sectional area of the second sealing plate is matched with the cross sectional areas of the left side and the right side of the bottom of the inner cavity of the reaction gas block, therefore, when the first sealing plate moves downwards, the second sealing plate moves leftwards and rightwards in the inner cavity of the reaction gas block, and the shielding plate is driven to move leftwards and rightwards in the strip-shaped frame by matching with the silk thread.

Further, the equal fixed mounting in the left and right sides at bar frame inner chamber top has gear two, the middle part movable mounting of gear two has the axis of rotation, the bottom fixed mounting of bar frame inner chamber has the stand, the left side fixed mounting of stand inner chamber has tooth three, the bottom movable mounting on stand right side has gear three, the middle part fixed mounting of bar frame inner chamber bottom has the switch, the switch passes through wire and external supervisory equipment electric connection, the shape size of tooth two and the shape size phase-match of gear two, thereby when the sunshade removes about to the bar frame, drive gear three through gear two and tooth three and rotate, it shifts up to drive the switch when shifting up to make gear three rotate.

The invention has the following beneficial effects:

1. this a rail ground stake for building important facility safety of site protection, through setting up fixed slot and buffering post, the fixed rail guard of carriage release lever and reset spring that utilizes buffering capital portion is less than the position with the contact of buffering capital portion, when the buffering post moves down under the action of gravity of rail guard simultaneously, the top of buffering post promotes the baffle and moves down, the cooperation rotation axis, make the contact of the left and right sides of telescopic push rod and rail guard, the elastic plate and the rail guard outside laminating at telescopic push rod top simultaneously, and under the effect of the magnetic path on the elastic plate surface of the left and right sides, fixed rail guard, with this effect that reaches the not unidimensional rail guard of fixed mounting.

2. This a rail ground stake for building site protection important facilities safety, through setting up reaction gas piece and switch, the bottom movable mounting who utilizes the bumping post is at the top of closing plate one, thereby during the installation rail guard, closing plate one moves down under the action of gravity of rail guard, make closing plate two to the horizontal migration in the bottom of reaction gas piece inner chamber, utilize the silk thread to drive the sunshade and remove, with this top of opening the bar frame, two drive gear two and gear three rotations of tooth simultaneously, make the switch shift up along with the rotation of gear three, the bottom press switch of closing plate one of being convenient for, with this external supervisory equipment who starts and switch electric connection, reach when taking place the invasion of exotic personnel climbing, the automatic start supervisory equipment, reduce the effect of building site loss rate.

Drawings

Fig. 1 is a front sectional view of the overall structure of the present invention.

Fig. 2 is a schematic side view of the fixing groove structure of the present invention.

Fig. 3 is a top view of the elastic plate structure of the present invention.

FIG. 4 is a schematic view of the structure of FIG. 1A according to the present invention.

FIG. 5 is a schematic view of the structure at B of FIG. 1 according to the present invention.

In the figure: 1. a substrate; 2. a placement port; 3. fixing grooves; 4. a buffer column; 5. a reaction gas block; 301. A strip-shaped cavity; 302. a rotating shaft; 303. a torsion spring; 304. a baffle plate; 305. a telescopic push rod; 306. An elastic plate; 307. a magnetic block; 308. a movable block; 309. a first rodent; 310. a first gear; 311. an extrusion stem; 401. a buffer spring; 402. a movable hole; 403. a travel bar; 404. a return spring; 501. A first sealing plate; 502. a second sealing plate; 503. a silk thread; 504. a connecting spring; 505. a bar frame; 506. Perforating; 507. a shutter; 508. a second rodent; 509. a second gear; 510. a rotating shaft; 511. a column; 512. a third rodent; 513. a third gear; 514. and (4) switching.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment;

please refer to fig. 1 and 5, a fence ground pile for protecting safety of important facilities in a building site, comprising a base body 1, a placing opening 2 is formed at the top of the base body 1, a fixing groove 3 is formed at the middle part of the base body 1, a buffering column 4 is movably mounted at the middle part of an inner cavity of the fixing groove 3, a reaction gas block 5 is fixedly mounted at the bottom of the fixing groove 3, a gear II 509 is fixedly mounted at the left side and the right side of the top of the inner cavity of a bar-shaped frame 505, a rotating shaft 510 is movably mounted at the middle part of the gear II 509, a stand column 511 is fixedly mounted at the bottom of the inner cavity of the bar-shaped frame 505, a gear III 512 is fixedly mounted at the left side of the inner cavity of the stand column 511, and a gear III 513 is movably mounted at the bottom of the right side of the stand column 511.

Wherein, the top of the inner cavity of the reaction gas block 5 is movably provided with a first sealing plate 501, the left and right sides of the bottom of the inner cavity of the reaction gas block 5 are movably provided with a second sealing plate 502, the right side of the second sealing plate 502 is fixedly connected with a silk thread 503, the right side of the second sealing plate 502 is fixedly provided with a connecting spring 504, the bottom of the inner cavity of the reaction gas block 5 is fixedly provided with a strip-shaped frame 505, the left and right sides of the top of the strip-shaped frame 505 are respectively provided with a through hole 506, the inner cavity of the through hole 506 is movably provided with a shield 507, the bottom of the shield 507 is fixedly provided with a second rodent 508, the right side of the shield 507 is fixedly connected with the second sealing plate 502 through the silk thread 503, the cross sectional area of the first sealing plate 501 is matched with the cross sectional area of the top of the inner cavity of the reaction gas block 5, the cross sectional area of the second sealing plate 502 is matched with the cross sectional area of the left and right sides of the bottom of the inner cavity of the reaction gas block 5, thereby when the first sealing plate 501 moves downwards, the shutter 507 is driven to move left and right in the bar frame 505 by matching with the wire 503.

Wherein, the equal fixed mounting in the left and right sides at bar frame 505 inner chamber top has two 509 gears, the middle part movable mounting of two 509 gears has axis of rotation 510, the bottom fixed mounting of bar frame 505 inner chamber has stand 511, the left side fixed mounting of stand 511 inner chamber has three 512 rodents, the bottom movable mounting on stand 511 right side has three 513 gears, the middle part fixed mounting of bar frame 505 inner chamber bottom has switch 514, switch 514 passes through wire and external supervisory equipment electric connection, the shape size of two 508 rodents and the shape size phase-match of two 509 gears, thereby when sunshade 507 removes about bar frame 505, drive three 513 rotations of gears through two 509 and three 512 rodents, make three 513 gears rotate and drive switch 514 and shift up when shifting up.

The working principle is as follows: when the protective guard works, the protective guard is movably arranged in the inner cavity of the base body 1, when an outsider climbs the protective guard, the protective guard moves downwards under the action of the climbing personnel, the bottom of the buffer column 4 is movably arranged at the top of the first sealing plate 501, the cross section area of the first sealing plate 501 is matched with the cross section area of the top of the inner cavity of the reaction gas block 5, and the cross section area of the second sealing plate 502 is matched with the cross section area of the left side and the right side of the bottom of the inner cavity of the reaction gas block 5, so that when the protective guard moves downwards, when the first sealing plate 501 moves downwards, the gas in the inner cavity of the reaction gas block 5 moves downwards to push the second sealing plate 502 to move leftwards and rightwards in the inner cavity of the reaction gas block 5, and the second sealing plate 502 is fixedly connected with the shielding plate 507 through the wire 503, so that the second sealing plate 502 moves leftwards and rightwards to drive the shielding plate 507 to move in the strip-shaped frame 505 to open the top of the strip-shaped frame 505, and meanwhile, the shape size of the second rodent 508 at the bottom of the shielding plate 507 is matched with the shape size of the second gear 509, the second gear 509 is movably mounted with the third gear 513 through a rotating shaft 510, the shape and size of the outer surface of the third gear 513 are matched with the shape and size of the third rodent 512, so that the second gear 509 is driven to rotate by moving the shutter 507 leftwards and rightwards, and the third gear 513 is driven to move upwards in the inner cavity of the upright column 511, so that the switch 514 fixedly mounted on the right side of the third gear 513 also moves upwards along with the shutter, the starting switch 514 is pressed by the bottom of the first sealing plate 501, external monitoring equipment electrically connected with the switch 514 is started, the position of the protective guard is monitored in real time, when an external person climbs, the monitoring equipment is automatically started, and the loss rate of a building site is reduced.

Example two;

referring to fig. 1-5, a fence pile for securing important facilities in building site protection comprises a base body 1, and is characterized in that: the top of base member 1 has been seted up and has been placed mouthful 2, fixed slot 3 has been seted up at the middle part of base member 1, the middle part movable mounting of the 3 inner chambers of fixed slot has buffer column 4, the bottom fixed mounting of fixed slot 3 has reaction gas piece 5, the equal fixed mounting in the left and right sides at bar frame 505 inner chamber top has two 509 gears, the middle part movable mounting of two 509 gears has axis of rotation 510, the bottom fixed mounting of bar frame 505 inner chamber has stand 511, the left side fixed mounting in stand 511 inner chamber has three 512 of rodent, the bottom movable mounting on stand 511 right side has three 513 of gears.

Wherein, strip-shaped cavity 301 has all been seted up to the left and right sides of fixed slot 3 inner chamber, the bottom fixed mounting of strip-shaped cavity 301 inner chamber has rotation axis 302, the inner chamber fixed mounting of rotation axis 302 has torque spring 303, the right side fixed mounting of rotation axis 302 has baffle 304, the top fixed mounting of rotation axis 302 has flexible push rod 305, thereby baffle 304 moves down, it is rotatory to drive flexible push rod 305 through rotation axis 302, when the downward effort of baffle 304 disappears, under torque spring 303's elasticity effect, flexible push rod 305 and baffle 304 automatic re-setting are to the initial position.

Wherein, the top fixed mounting of telescopic push rod 305 has elastic plate 306, elastic plate 306's bottom fixed mounting has magnetic path 307, elastic plate 306's middle part movable mounting has movable block 308, the equal fixed mounting in the left and right sides at movable block 308 top has a rodent 309, the equal fixed mounting in the left and right sides at elastic plate 306 top middle part has a gear 310, the left side fixed mounting of a gear 310 has an ejector beam 311, elastic plate 306's material is the elastic material component, thereby when movable block 308 shifts up, drive a gear 310 through a rodent 309 and rotate, make ejector beam 311 promote elastic plate 306's both sides, make elastic plate 306 laminate at rail guard bottom surface automatically.

Wherein, the equal fixed mounting in the left and right sides at buffering post 4 top has buffer spring 401, the movable hole 402 has been seted up at the top of buffering post 4, the inner chamber movable mounting of movable hole 402 has carriage release lever 403, the inner chamber fixed mounting at buffering post 4 top has reset spring 404, buffer spring 401 and the bottom fixed connection of fixed slot 3 inner chamber are passed through to the left and right sides at buffering post 4 top, thereby when the top of buffering post 4 and the bottom contact of rail guard, utilize carriage release lever 403, buffer spring 401 and reset spring 404, with this fixed rail guard.

Wherein, the top of the inner cavity of the reaction gas block 5 is movably provided with a first sealing plate 501, the left and right sides of the bottom of the inner cavity of the reaction gas block 5 are movably provided with a second sealing plate 502, the right side of the second sealing plate 502 is fixedly connected with a silk thread 503, the right side of the second sealing plate 502 is fixedly provided with a connecting spring 504, the bottom of the inner cavity of the reaction gas block 5 is fixedly provided with a strip-shaped frame 505, the left and right sides of the top of the strip-shaped frame 505 are respectively provided with a through hole 506, the inner cavity of the through hole 506 is movably provided with a shield 507, the bottom of the shield 507 is fixedly provided with a second rodent 508, the right side of the shield 507 is fixedly connected with the second sealing plate 502 through the silk thread 503, the cross sectional area of the first sealing plate 501 is matched with the cross sectional area of the top of the inner cavity of the reaction gas block 5, the cross sectional area of the second sealing plate 502 is matched with the cross sectional area of the left and right sides of the bottom of the inner cavity of the reaction gas block 5, thereby when the first sealing plate 501 moves downwards, the shutter 507 is driven to move left and right in the bar frame 505 by matching with the wire 503.

Wherein, the equal fixed mounting in the left and right sides at bar frame 505 inner chamber top has two 509 gears, the middle part movable mounting of two 509 gears has axis of rotation 510, the bottom fixed mounting of bar frame 505 inner chamber has stand 511, the left side fixed mounting of stand 511 inner chamber has three 512 rodents, the bottom movable mounting on stand 511 right side has three 513 gears, the middle part fixed mounting of bar frame 505 inner chamber bottom has switch 514, switch 514 passes through wire and external supervisory equipment electric connection, the shape size of two 508 rodents and the shape size phase-match of two 509 gears, thereby when sunshade 507 removes about bar frame 505, drive three 513 rotations of gears through two 509 and three 512 rodents, make three 513 gears rotate and drive switch 514 and shift up when shifting up.

The working principle is as follows: when the device is used, whether the functions among the structures of each part of the device are normal or not is firstly checked, when the protective guard is installed, the protective guard enters the fixed groove 3 from the placing port 2 at the top of the base body 1 and presses the top of the buffer column 4 downwards under the action of self gravity, at the moment, because the left side and the right side of the top of the buffer column 4 are both fixedly provided with the buffer springs 401, the top of the buffer column 4 is provided with the movable hole 402, the inner cavity of the movable hole 402 is movably provided with the movable rod 403, the inner cavity at the top of the buffer column 4 is fixedly provided with the return spring 404, the left side and the right side of the top of the buffer column 4 are fixedly connected with the bottom of the inner cavity of the fixed groove 3 through the buffer springs 401, when the top of the buffer column 4 is contacted with the bottom of the protective guard, the protective guard is fixed by utilizing the movable rod, the buffer springs 401 and the return spring 404, and meanwhile, when the buffer column 4 moves downwards under the action of the gravity of the protective guard, the left and right sides of the top of the buffer column 4 push the baffle 304 to move downwards, the rotation shaft 302 is matched to make the telescopic push rod 305 move out of the strip-shaped cavity 301 to contact with the left and right sides of the guard rail, when the elastic plate 306 on the top of the telescopic push rod 305 is attached to the outer side of the guard rail, and with the downward movement of the baffle 304, the elastic plate 306 continuously presses the left and right sides of the guard rail, so that the middle continuously movable block 308 of the elastic plate 306 on the left and right sides moves inwards, the gear one 310 movably mounted with the gear one 309 is driven to rotate by matching with the gear one 309, so that the pressing rod 311 pushes the elastic plate 306 to deform under the action of the self material, the elastic plate 306 is attached to the outer surface of the guard rail, and the guard is fixed with the magnet blocks under the mutual attraction effect of 307 on the surfaces of the elastic plates 306 on the left and right sides, thereby achieving the effect of fixedly mounting the guard rails with different sizes, by arranging the reaction gas block 5 and the switch 514, the bottom of the buffer column 4 is movably arranged at the top of the first sealing plate 501, so that when the protective guard is installed, the first sealing plate 501 moves downwards under the action of gravity of the protective guard, the second sealing plate 502 moves leftwards and rightwards at the bottom of the inner cavity of the reaction gas block 5, the shield plate 507 is driven to move leftwards and rightwards by the silk thread 503 to open the top of the strip-shaped frame 505, meanwhile, the second rodent 508 drives the second gear 509 and the third gear 513 to rotate, the switch 514 moves upwards along with the rotation of the third gear 513, the switch 514 is pressed at the bottom of the first sealing plate 501 conveniently, external monitoring equipment electrically connected with the switch 514 is started, and when external personnel climb and invade, the monitoring equipment is automatically started, and the loss rate of a building site is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.