CN211229603U

CN211229603U - Higher building engineering protective net system of security

Info

Publication number: CN211229603U
Application number: CN201921312118.2U
Authority: CN
Inventors: 张祖根
Original assignee: Jiangsu Yunqi Construction Machinery Co ltd
Current assignee: Jiangsu Yunqi Construction Machinery Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-08-11
Anticipated expiration: 2029-08-14

Abstract

The utility model discloses a high-safety building engineering protective net system, which structurally comprises a plurality of protective nets, a plurality of hook fixing pieces and a horizontal fixing piece, wherein the protective nets are mutually hinged and form a trapezoidal frame, the hook fixing pieces comprise a linear hook fixing piece and a turning hook fixing piece, the linear hook fixing piece is used for fixing four edges of the trapezoidal frame, the turning hook fixing piece is used for fixing four vertexes of the trapezoidal frame, the horizontal fixing piece comprises a linear fixing piece and a turning fixing piece, the linear fixing piece is connected with the linear hook fixing piece and is used for fixing four edges of the trapezoidal frame on a horizontal plane, the turning fixing piece is connected with the turning hook fixing piece and is used for fixing four vertexes of the trapezoidal frame on the horizontal plane, the turning fixing piece is matched with the linear fixing piece to strengthen the fixed trapezoidal frame and the horizontal plane, the utility model effectively improves the, the safety of building constructors is ensured.

Description

Higher building engineering protective net system of security

The technical field is as follows:

the utility model belongs to the technical field of a building safety technique and specifically relates to a higher building engineering protective net system of security.

Background art:

the building protective net is an essential safety article in building construction, is suitable for various building sites, particularly high-rise buildings, can be used for totally-enclosed construction on construction sites, can effectively prevent the falling injury of people and objects, prevent fire caused by electric welding sparks, reduce noise and dust pollution, and achieve the effects of civilized construction, environment protection and city beautification.

At present, the building protection network of laying at building construction site generally adopts and builds temporarily, and it forms to mostly be polyamide fibre material establishment, this kind of building protection network receives the impact force from the external world very easily in the use and causes the damage, hardly guarantee building constructor's safety, on the other hand, the protection network is building the in-process, it is fixed mostly to adopt iron wire ligature or wire rope, it is inconvenient during the use, and cause fixedly insecure because of local artificial carelessness easily moreover, thereby lead to the collapsing of whole protection network, and the security is extremely low.

The utility model has the following contents:

the utility model aims at providing a higher building engineering protection network system of security solves one or more among the above-mentioned prior art problem.

In order to solve the technical problem, the utility model discloses an innovation point lies in: its structure includes a plurality of protection networks, a plurality of couple mountings and horizontal mounting, the mutual hinged joint of protection network just forms trapezoidal frame, the couple mounting includes sharp couple mounting and the couple mounting that turns round, sharp couple mounting is used for the fixed on four limits of trapezoidal frame, the couple mounting that turns round is used for the fixed on four summits of trapezoidal frame, horizontal mounting includes sharp mounting and the mounting that turns round, sharp mounting and sharp couple mounting link to each other and are used for four limits of fixed trapezoidal frame on the horizontal plane, the mounting that turns round links to each other and is used for four summits of fixed trapezoidal frame in the horizontal plane with the couple mounting that turns round, the mounting that turns round cooperates sharp mounting to strengthen fixed trapezoidal frame and horizontal plane.

Furthermore, the protective net comprises a closed rectangular frame and a hot galvanizing wire mesh, and the hot galvanizing wire mesh is laid on the rectangular frame.

Further, the linear hook fastener includes: channel-section steel an on the protection network is fixed to two symmetries, two c shaped steel, intermediate fixing and two side mountings, the intermediate junction of two channel-section steel a bottoms has rotatable axostylus axostyle, two c shaped steel are through a plurality of steel sheet a welded connection and the bottom that is located channel-section steel a one by one perpendicularly respectively, interval between two c shaped steel is unanimous with the interval between two channel-section steel a, intermediate fixing connects between two c shaped steel and cooperates the axostylus axostyle along the fixed protection network of the direction of central line between two channel-section steel a, channel-section steel a and c shaped steel's opening all outwards, the side mountings are connected at c shaped steel's opening and the fixed protection network.

Further, above-mentioned middle mounting includes two buckles and locating part, the buckle includes splint and hook-shaped knot, splint and hook-shaped knot integrated into one piece, splint pass through the bolt one by one and fix the inboard at c shaped steel, the extending direction of hook-shaped knot is detained towards axostylus axostyle and axostylus axostyle card and is established in the inside of hook-shaped knot, the locating part includes fixed plate and limiting plate, fixed plate and limiting plate integrated into one piece, the fixed plate tightly presss from both sides between two splint, the extending direction of limiting plate is detained towards hook-shaped and is just detained near hook-shaped, the axostylus axostyle is spacing in the frame that hook-shaped knot and limiting plate formed, the top of splint is equipped with the spacing groove of.

Further, above-mentioned side mounting includes fixed frame, connecting plate an and L template, fixed frame fixes in c shaped steel open-ended inside, connecting plate an's one end and fixed frame fixed connection, connecting plate an's other end extending direction is towards channel-section steel a, one side of L template is tightly on the inside inner wall of channel-section steel a, the another side of L template extends channel-section steel a's the outside and with connecting plate an's other end fixed connection, the last fixed orifices an of having seted up the symmetry of rectangular frame, the last fixed orifices b of having seted up position and fixed orifices a and corresponding of c shaped steel, fixed orifices an and fixed orifices b pass through fastening bolt and fix.

Further, the above-mentioned hook fastener of turning round includes: two L shaped steel and fixing device, two L shaped steel correspond respectively and fix on two adjacent protection networks and equal perpendicular to horizontal plane, and the opening of L shaped steel is parallel to each other towards the fixed opposite face of just two L shaped steel of protection network, and the protection network is fixed to two L shaped steel of fixing device cooperation.

Further, the fixing device includes: fixed side pipe, connecting plate and two channel-section steel b, the both sides of fixed side pipe pass through fastening bolt fixed connection with the opposite face of two L shaped steel respectively, two channel-section steel b parallel placement on the water flat line and through steel sheet b welded connection, the one end and the fixed side fixed connection of pipe of connecting plate, the other end of connecting plate extends outwards and is located between two channel-section steel b, the other end and the steel sheet b welded connection of connecting plate, the mounting that turns round is connected with channel-section steel b.

Furthermore, above-mentioned sharp mounting includes that two are the extension c shaped steel of cross connection, four extreme points of sharp mounting respectively with the c shaped steel welded connection that corresponds, the central point of sharp mounting puts and is equipped with the rectangle fixed plate, distribute on the rectangle fixed plate have a plurality ofly with the fixed orifices groove of horizontal plane.

Furthermore, the turning fixing piece comprises a v-shaped fixing piece and an extending channel steel, one end of the v-shaped fixing piece is connected with the channel steel b in a welded mode, and the other end of the v-shaped fixing piece is connected with one end of the extending channel steel in a welded mode.

Furthermore, the other end of the extending channel steel is connected with the center of the linear fixing piece in a welding mode.

The beneficial effects of the utility model reside in that: the utility model provides a higher building engineering protective net system of security, through the straight flange to laying the protection network and the fixed on summit, whole fixed process ring is detained mutually, has reduced the fixed risk of local artificial negligence to make the protection network form a whole after fixing, improved the security that whole protection network system used greatly, thereby guaranteed building constructor's safety.

Description of the drawings:

fig. 1 is a top plan view of the present invention.

Fig. 2 is a sectional view of the protection net of the present invention.

Fig. 3 is a top view of the linear hook fixing member of the present invention.

Fig. 4 is a schematic side view of the intermediate fixing member of the present invention.

Fig. 5 is a schematic view of the connection between the hook fixing member and the turning fixing member of the present invention.

The specific implementation mode is as follows:

in order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

Fig. 1 to 5 show a specific embodiment of the present invention, which is characterized in that: its structure includes a plurality of protection networks 1, a plurality of couple mounting and horizontal mounting, 1 mutual hinged joint of protection network and formation trapezoidal frame 101, the couple mounting includes sharp couple mounting 2 and the couple mounting 3 that turns round, sharp couple mounting 2 is used for the fixed of four limits of trapezoidal frame 101, the couple mounting 3 that turns round is used for the fixed on four summits of trapezoidal frame 101, horizontal mounting includes sharp mounting 4 and the mounting 5 that turns round, sharp mounting 4 links to each other and is used for four limits of fixed trapezoidal frame 101 on the horizontal plane with sharp couple mounting 2, the mounting 5 that turns round links to each other and is used for four summits of fixed trapezoidal frame 101 on the horizontal plane with the couple mounting 3 that turns round, the mounting 5 that turns round cooperates sharp mounting 4 to strengthen fixed trapezoidal frame 101 and horizontal plane.

The utility model discloses in, according to the actual topography of construction, arrange the trapezoidal frame 101 that forms around the construction building site with the protection network 1 that the hinge links to each other, when fixing trapezoidal frame 101, fix trapezoidal frame through following step: 1. the protective nets 1 on four sides of the trapezoid frame 101 are fixed through the straight line hook fixing pieces 2, so that the protective nets 1 connected with the hinges are linearly arranged on the four sides of the

trapezoid frame

101, 2, the protective nets 1 on four vertexes of the trapezoid frame 101 are fixed through the turning hook fixing pieces 3, so that the angles of the protective nets 1 connected with the hinges at the four vertex positions of the trapezoid frame 101 are fixed, 3, the straight line hook fixing pieces 2 are connected with the straight line hook fixing pieces 2 through the straight line fixing pieces 4, so that the four sides of the trapezoid frame 101 are fixed with the horizontal plane, 4, the turning hook fixing pieces 5 are connected with the turning hook fixing pieces 3 through the turning fixing pieces 5, so that the turning hook fixing pieces 3 are fixed with the horizontal plane, so that the four vertexes of the trapezoid frame 101 are fixed with the horizontal plane, 5, the whole trapezoid frame 101 is strengthened and fixed on the horizontal plane, through the five steps, the fixing rings of the protective net 1 are buckled, the risk of fixation caused by local human negligence is reduced, and the use safety of the whole protective net system is greatly improved, so that the safety of building constructors is ensured.

The utility model discloses in, in order to guarantee the intensity that protection network 1 used, above-mentioned protection network 1 includes confined rectangular frame 11 and hot-galvanize silk screen 12, and hot-galvanize silk screen 12 is laid 11 on rectangular frame, and is preferential, rectangular frame 11's material steel, whole protection network 1 all are the rigidity material, have improved the intensity that protection network 1 used.

The utility model discloses in, in order to realize sharp couple mounting 2 can fix protection network 1 on the trapezoidal frame 101 four sides. The above-mentioned straight line hook fastener 2 includes: the protective net comprises two channel steels a21 symmetrically fixed on the protective net 1, two c-shaped steels 22, a middle fixing piece 23 and two side fixing pieces 24, wherein a rotatable shaft rod 25 is connected in the middle of the bottoms of the two channel steels a21, the two c-shaped steels 22 are connected through a plurality of steel plates a26 in a welding mode and are respectively vertically arranged at the bottoms of the channel steels a21 one by one, the distance between the two c-shaped steels 22 is consistent with the distance between the two channel steels a21, the middle fixing piece 23 is connected between the two c-shaped steels 22 and is matched with the shaft rod 25 to fix the protective net 1 along the direction of the central line between the two channel steels a21, the openings of the channel steels a21 and the c-shaped steels 22 face outwards, the side fixing pieces 24 are connected with the openings of the c-shaped steels 22 and are matched with the openings of the channel steels a21 to fix the protective, when the channel steel a21 is fixed on the protective net 1, the channel steel a21 extends to the bottom of the protective net 1 and is perpendicular to the horizontal plane, preferably, the distance between two channel steels a21 is 50cm, two c-shaped steels 22 are connected through a steel plate a26 in a welding manner, and the distance between two c-shaped steels 22 is 50cm, preferably, the steel plate a26 is made of a harder plate material, so that the connection firmness between the two c-shaped steels 22 is ensured, the two c-shaped steels 22 are vertically placed at the bottom of the channel steel a21 after being connected in a welding manner, in order to fully fix the protective net 1 and the two c-shaped steels 22 and avoid the inclination of the protective net 1 when being placed, a rotatable shaft rod 25 is arranged at the bottom of the two channel steels a21, an intermediate fixing piece 23 is connected between the two c-shaped steels 22 and provided with the shaft rod 25 to fix the protective net 1 along the direction of the center line between the two channel steels a21, a side, the protective net 1 is fixed from the central position and the side position of the two channel steels a21 through the middle fixing piece 23 and the side fixing piece 24, so that the stability of fixing the protective net 1 is ensured to the greatest extent, the protective net 1 is prevented from inclining in the using process, and the using safety of the protective net 1 is improved.

In the present invention, in order to fix the protection net 1 from the center position of two channel steel a21 by the middle fixing member 23, the middle fixing member 23 includes two clamping buckles 231 and a limiting member 232, the clamping buckle 231 includes a clamping plate 233 and a hook-shaped buckle 234, the clamping plate 233 and the hook-shaped buckle 234 are integrally formed, the clamping plate 233 is fixed on the inner side of the c-shaped steel 22 by bolts, the hook-shaped buckle 234 extends toward the shaft 25 and the shaft 25 is clamped inside the hook-shaped buckle 234, the limiting member 232 includes a fixing plate 235 and a limiting plate 236, the fixing plate 235 and the limiting plate 236 are integrally formed, the fixing plate 235 is tightly clamped between the two clamping plates 233, the limiting plate 236 extends toward the hook-shaped buckle 234 and abuts against the hook-shaped buckle 234, the shaft 25 is limited in the frame formed by the hook-shaped buckle 234 and the limiting plate 236, the top of the clamping plate 233 is provided with an elongated limiting groove 237, the, the limit groove 237 and the limit hole 238 are fixed by fastening bolts, and the shaft 25 is limited inside the frame formed by the hook-shaped fastener 234 and the limit piece 236 by the cooperation of the clip 231 and the limit piece 232, so that the middle fixing piece 23 can fix the protection net 1 from the central position of the two channel steels a 21.

In the utility model, in order to realize that the side fixing piece 24 can fix the protective net 1 from the side position of two channel steels a21, the side fixing piece 24 comprises a fixing frame 241, a connecting plate a242 and an L-shaped plate 243, the fixing frame 241 is fixed in the opening of the c-shaped steel 22, one end of the connecting plate a242 is fixedly connected with the fixing frame 241, the other end of the connecting plate a242 extends towards the channel steel a21, one side of the L-shaped plate 243 is abutted against the inner wall in the channel steel a21, the other side of the L-shaped plate 243 extends out of the channel steel a21 and is fixedly connected with the other end of the connecting plate a242, the rectangular frame 241 is provided with symmetrical fixing holes a244, the c-shaped steel 22 is provided with fixing holes b245 corresponding to the fixing holes a244 in position, the fixing holes a244 and the fixing holes b245 are fixed through fastening bolts, the L-shaped plate 243 is mutually clamped with the channel steel a21 through the inside of, thereby realizing that the side fixtures 24 can fix the protection net 1 from the side positions of the two channel steels a 21.

The utility model discloses in, couple mounting 3 can fix the angle of trapezoidal frame 101 four summit protection networks 1 in order to realize turning round, and above-mentioned couple mounting 3 that turns round includes: two L shaped steel 31 and fixing device 32, two L shaped steel 31 correspond respectively and fix on two adjacent protection networks 1 and all perpendicular to horizontal plane, the opening of L shaped steel 31 is parallel to each other towards the fixed opposite face of two L shaped steel 31 of protection network 1, fixing device 32 cooperates two L shaped steel 31 fixed protection networks 1, the protection network 1 sets up suitable angle according to the topography of construction, select suitable L shaped steel 31 according to the angle between the protection network 1, satisfy following condition when making L shaped steel 31 fix on two protection networks 1: the opening of L shaped steel 31 is fixed towards protection network 1 and the opposite face of two L shaped steel 31 is parallel to each other, and L shaped steel 31 and protection network 1 are fixed can be through welded fastening, and after L shaped steel 31 is fixed, through fixing device 32 cooperation L shaped steel 31 with protection network 1 fixed and make the angle between two protection networks 1 fixed.

The utility model discloses in, can cooperate L shaped steel 31 in order to realize fixing device 32 can fix the protection network 1 and make the angle between two protection networks 1 fixed, above-mentioned fixing device 32 includes: the two sides of the fixed square pipe 321 are respectively fixedly connected with the opposite surfaces of the two L-shaped steels 31 through fastening bolts, the two channel steels b323 are parallelly placed on a horizontal line and are welded and connected through steel plates b324, one end of the connecting plate 322 is fixedly connected with the fixed square pipe 321, the other end of the connecting plate 322 extends outwards and is positioned between the two channel steels b323, the other end of the connecting plate 322 is welded and connected with the steel plates b324, the turning fixing piece 5 is connected with the channel steels b323, because the two opposite surfaces of the two L-shaped steels 31 are parallel to each other, the two sides of the fixed square pipe 321 are conveniently and fixedly connected with the opposite surfaces of the two L-shaped steels 31 through the fastening bolts respectively, so that the angle between the two protective nets 1 is fixed, the connecting plate 322 extends between the two channel steels b323 and is fixed through the steel plates b324 and the two channel steels b323, and the subsequent turning, thereby realizing the subsequent fixation of the turning hook fixing piece 3 and the horizontal plane.

In the utility model, in order to fix the four sides of the trapezoid frame 101 and the horizontal plane by the linear fixing pieces 4, the linear fixing part 4 comprises two extending c-shaped steels 41 connected in a cross shape, four end points of the linear fixing part 4 are respectively welded with the corresponding c-shaped steels 22, a rectangular fixing plate 6 is arranged at the central position of the linear fixing part 4, a plurality of fixing hole grooves 61 fixed with the horizontal plane are distributed on the rectangular fixing plate 6, the cross shape of the linear fixing part 4 is convenient for the linear fixing part 4 to be fixed by the extending c-shaped steels 22 at the upper side, the lower side and the left side of the trapezoidal frame 101 respectively, meanwhile, the rectangular fixing plate 6 is arranged at the center of the linear fixing member 4, and the c-shaped steel 22 is fixed on the horizontal plane through the rectangular fixing plate 6 and the horizontal plane, so that the four sides and the horizontal plane of the trapezoid frame 101 are fixed.

In the utility model, in order to realize that the turning fixture 5 can fix four vertexes and a horizontal plane of the trapezoid frame 101, and cooperate with the linear fixture 4 to further strengthen and fix the whole trapezoid frame 101, the turning fixture 5 comprises a V-shaped fixture 51 and an extension channel steel 52, one end of the V-shaped fixture 51 is welded with a channel steel b323, the other end of the V-shaped fixture 51 is welded with one end of the extension channel steel 52, the other end of the extension channel steel 52 is welded with the central position of the linear fixture 4, and is connected with the channel steel b323 through the V-shaped fixture 51, so that the extension direction of the channel steel b323 is changed, and the design of the turning angle of the V-shaped fixture 51 meets the requirement that the extension direction of the subsequent extension channel steel 52 can be extended to the central position of the linear fixture 4, thereby facilitating the welding and fixing of the central positions of the extension channel, make sharp mounting 4 can be fixed with extension channel-section steel 52 and horizontal plane to the realization is fixed with four summits and horizontal plane of trapezoidal frame 101, and this kind of fixed mode makes trapezoidal frame 101 and inside sharp mounting 4, the mounting 5 that turns round, sharp couple mounting 2 and the couple mounting 3 that turns round form a whole, has realized the fixed stability of whole trapezoidal frame 101, thereby has guaranteed the security that whole protection network system used.

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A building engineering protective net system with higher safety is characterized in that: the structure of the hook comprises a plurality of protective nets (1), a plurality of hook fixing pieces and a horizontal fixing piece, wherein the protective nets (1) are mutually hinged and form a trapezoidal frame (101), the hook fixing piece comprises a straight line hook fixing piece (2) and a turning hook fixing piece (3), the straight line hook fixing piece (2) is used for fixing four edges of the trapezoidal frame (101), the turning hook fixing piece (3) is used for fixing four vertexes of the trapezoidal frame (101), the horizontal fixing piece comprises a straight line fixing piece (4) and a turning fixing piece (5), the straight line fixing piece (4) is connected with the straight line hook fixing piece (2) and is used for fixing four edges of the trapezoidal frame (101) on the horizontal plane, the turning fixing piece (5) is connected with the turning hook fixing piece (3) and is used for fixing four vertexes of the trapezoidal frame (101) on the horizontal plane, the turning fixing piece (5) is matched with the linear fixing piece (4) to strengthen and fix the trapezoid frame (101) and the horizontal plane.

2. The high-safety building engineering protective net system according to claim 1, characterized in that: the protective net (1) comprises a closed rectangular frame (11) and a hot galvanizing wire mesh (12), wherein the hot galvanizing wire mesh (12) is laid on the rectangular frame (11).

3. The high-safety building engineering protective net system according to claim 1, characterized in that: the linear hook fixture (2) comprises: two symmetries are fixed channel-section steel a (21), two c shaped steel (22), middle mounting (23) and two side mounting (24) on protection network (1), two the intermediate junction of channel-section steel a (21) bottom has rotatable axostylus axostyle (25), two c shaped steel (22) are through a plurality of steel sheet a (26) welded connection and respectively one by one perpendicular be located the bottom of channel-section steel a (21), two interval and two between c shaped steel (22) interval between channel-section steel a (21) is unanimous, middle mounting (23) are connected two between c shaped steel (22) and cooperation axostylus axostyle (25) are along two the direction of central line is fixed between channel-section steel a (21) protection network (1), channel-section steel a (21) with the opening of c shaped steel (22) all outwards, side mounting (24) are connected the opening of c shaped steel (22) and cooperation the opening of channel-section steel a (21) are opened The opening is fixed along the direction of two channel-section steel a (21) outsides the protection net (1), straight line mounting (4) with c shaped steel (22) are connected.

4. The high-safety building engineering protective net system according to claim 3, wherein: the middle fixing piece (23) comprises two clamping buckles (231) and a limiting piece (232), the clamping buckles (231) comprise clamping plates (233) and hook-shaped buckles (234), the clamping plates (233) and the hook-shaped buckles (234) are integrally formed, the clamping plates (233) are fixed on the inner side of the c-shaped steel (22) one by one through bolts, the hook-shaped buckles (234) extend towards the shaft rod (25) and the shaft rod (25) is clamped inside the hook-shaped buckles (234), the limiting piece (232) comprises a fixing plate (235) and a limiting plate (236), the fixing plate (235) and the limiting plate (236) are integrally formed, the fixing plate (235) is tightly clamped between the two clamping plates (233), the limiting plate (236) extends towards the hook-shaped buckles (234) and abuts against the hook-shaped buckles (234), and the shaft rod (25) is limited in a frame formed by the hook-shaped buckles (234) and the limiting plate (236), the top of splint (233) is equipped with rectangular shape spacing groove (237), the top of fixed plate (235) is equipped with two symmetries and with spacing hole (238) that spacing groove (237) are linked together, spacing groove (237) with spacing hole (238) are fixed through fastening bolt.

5. The high-safety building engineering protective net system according to claim 3, wherein: the side fixing piece (24) comprises a fixing frame (241), a connecting plate a (242) and an L-shaped plate (243), the fixing frame (241) is fixed inside the opening of the c-shaped steel (22), one end of the connecting plate a (242) is fixedly connected with the fixing frame (241), the other end of the connecting plate a (242) extends towards the channel steel a (21), one side of the L-shaped plate (243) is abutted against the inner wall of the inner part of the channel steel a (21), the other side of the L-shaped plate (243) extends out of the outer side of the channel steel a (21) and is fixedly connected with the other end of the connecting plate a (242), the fixed frame (241) is provided with symmetrical fixed holes a (244), the c-shaped steel (22) is provided with fixed holes b (245) corresponding to the fixed holes a (244), the fixing hole a (244) and the fixing hole b (245) are fixed by fastening bolts.

6. The high-safety building engineering protective net system according to claim 1, characterized in that: the corner hook fixture (3) comprises: two L shaped steel (31) and fixing device (32), two L shaped steel (31) correspond respectively and fix two adjacent on protection network (1) and equal perpendicular to horizontal plane, the opening orientation of L shaped steel (31) protection network (1) is fixed and two the opposite face of L shaped steel (31) is parallel to each other, fixing device (32) cooperation is two L shaped steel (31) are fixed protection network (1), turn round mounting (5) with turn round couple mounting (3) link to each other and are used for fixing four summits of trapezoidal frame (101) are in the horizontal plane, turn round mounting (5) cooperation linear fixity (4) are strengthened fixedly trapezoidal frame (101) and horizontal plane.

7. The high-safety building engineering protective net system according to claim 6, wherein: the fixing device (32) comprises: fixed square pipe (321), connecting plate (322) and two channel-section steel b (323), the both sides of fixed square pipe (321) are respectively with two the opposite face of L shaped steel (31) passes through fastening bolt fixed connection, two channel-section steel b (323) parallel placement is on the water flat line and through steel sheet b (324) welded connection, the one end of connecting plate (322) with fixed square pipe (321) fixed connection, the other end of connecting plate (322) extends outwards and is located two between channel-section steel b (323), the other end of connecting plate (322) with steel sheet b (324) welded connection, turn round mounting (5) with channel-section steel b (323) are connected, turn round mounting (5) cooperation sharp mounting (4) are strengthened fixedly trapezoidal frame (101) and horizontal plane.

8. The high-safety building engineering protective net system according to claim 3, wherein: linear fixing spare (4) include two extension c shaped steel (41) that are the cross connection, four extreme points of linear fixing spare (4) respectively with corresponding c shaped steel (22) welded connection, the central point of linear fixing spare (4) puts and is equipped with rectangle fixed plate (6), it has a plurality of fixed orifices grooves (61) fixed with the horizontal plane to distribute on rectangle fixed plate (6).

9. The high-safety building engineering protective net system according to claim 7, wherein: turning mounting (5) include v type mounting (51) and extend channel-section steel (52), the one end and channel-section steel b (323) welded connection of v type mounting (51), the other end and the one end welded connection of extending channel-section steel (52) of v type mounting (51), the other end that extends channel-section steel (52) all with the central point of straight line mounting (4) puts welded connection.