CN215010994U

CN215010994U - A installation component for fixing protection network

Info

Publication number: CN215010994U
Application number: CN202120919641.2U
Authority: CN
Inventors: 高碧涵
Original assignee: Hainan Zhongjie Power Technology Co ltd
Current assignee: Hainan Zhongjie Power Technology Co ltd
Priority date: 2021-04-29
Filing date: 2021-04-29
Publication date: 2021-12-03
Anticipated expiration: 2031-04-29

Abstract

The utility model relates to an installation component for fixed protection network, which comprises a connecting plate, first installing support and second installing support, first installing support includes first mounting panel, first installation department and second installation department, the left end of first mounting panel and the front end fixed connection of first installation department, the rear end of first installation department sets up in first mounting hole, the right-hand member of first mounting panel and the front end fixed connection of second installation department, the rear end of second installation department sets up in the second mounting hole, the second installing support includes the second mounting panel, third installation department and fourth installation department, the left end of second mounting panel and the front end fixed connection of third installation department, the rear end of third installation department sets up in the third mounting hole, the right-hand member of second mounting panel and the front end fixed connection of fourth installation department, the rear end of fourth installation department sets up in the fourth mounting hole. The utility model has the characteristics of simple structure, simple to operate and safe and reliable.

Description

A installation component for fixing protection network

Technical Field

The utility model relates to a mounting assembly for fixing protection network.

Background

Perimeter refers to the boundary of an enclosed area that needs to be physically or electronically protected. The perimeter is generally composed of a protective mesh and a detector disposed on the protective mesh. For the fixation of the protection net, it is generally fixed to an object to be installed (e.g., a vertical pole) by a mounting assembly for fixing the protection net. The detector is a sensor which monitors the illegal invasion behavior of the perimeter by using a sensor technology and generates alarm information, and can play an important role in the safety protection of the perimeter. Therefore, the fixation of the protection net is particularly important. At present, the installation component who is used for fixed protection network that appears on the market is more, and the structure of most support is more complicated, installs loaded down with trivial details. Meanwhile, the existing mounting assembly for fixing the protective screening has the problems of poor bearing performance, low stability and short service life.

SUMMERY OF THE UTILITY MODEL

In view of the above problems in the prior art, the main object of the present invention is to provide a mounting assembly for fixing a protection net, which is simple in structure, convenient to install, safe and reliable.

The technical scheme of the utility model is like this:

a mounting assembly for fixing a protective net comprises a connecting plate, a first mounting bracket and a second mounting bracket, wherein the connecting plate is square in shape, a first mounting hole and a second mounting hole are formed in one side of the connecting plate along the length direction, a third mounting hole and a fourth mounting hole are formed in the other side of the connecting plate along the length direction, one or more connecting holes are formed in the connecting plate along the width direction, the first mounting bracket comprises a first mounting plate, a first mounting part and a second mounting part, the first mounting plate is square in shape, the left end of the first mounting plate is fixedly connected with the front end of the first mounting part, the rear end of the first mounting part is arranged in the first mounting hole, the right end of the first mounting plate is fixedly connected with the front end of the second mounting part, and the rear end of the second mounting part is arranged in the second mounting hole, the second installing support includes second mounting panel, third installation department and fourth installation department, the shape of second mounting panel is square, the left end of second mounting panel with the front end fixed connection of third installation department, just the rear end of third installation department sets up in the third mounting hole, the right-hand member of second mounting panel with the front end fixed connection of fourth installation department, just the rear end of fourth installation department sets up in the fourth mounting hole.

The shape of first mounting panel, first installation department and second installation department is square, just first mounting panel, first installation department and second installation department are integrated into one piece.

The width of first mounting panel, first installation department and second installation department all equals.

The first mounting bracket further comprises a first plugging part and a second plugging part, the first plugging part is fixedly arranged at the rear end of the first mounting part, and the first mounting part is arranged in the first mounting hole through the first plugging part; the second plug portion is fixedly arranged at the rear end of the second installation portion, and the second installation portion is arranged in the second installation hole through the second plug portion.

The cross section of the first plugging part is triangular, the first plugging part and the first installation part are integrally formed, the front side face of the first plugging part is fixedly connected with the rear end face of the first installation part, the included angle between the plane of the left side face of the first plugging part and the plane of the rear end face of the first installation part is smaller than 90 degrees, and the included angle between the plane of the right side face of the first plugging part and the plane of the rear end face of the first installation part is larger than 90 degrees; the cross section of second plug portion is triangle-shaped, second plug portion with the second installation department is integrated into one piece, the leading flank of second plug portion with the rear end face fixed connection of second installation department, second plug portion left surface place plane with contained angle between second installation department rear end face place plane is greater than 90, just second plug portion right surface place plane with contained angle between second installation department rear end face place plane is less than 90.

The shape of second mounting panel, third installation department and fourth installation department is square, just second mounting panel, third installation department and fourth installation department are integrated into one piece.

The widths of the second mounting plate, the third mounting part and the fourth mounting part are all equal.

The second mounting bracket further comprises a third plugging part and a fourth plugging part, the third plugging part is fixedly arranged at the rear end of the third mounting part, and the third mounting part is arranged in the third mounting hole through the third plugging part; the fourth plug portion is fixedly arranged at the rear end of the fourth installation portion, and the fourth installation portion is arranged in the fourth installation hole through the fourth plug portion.

The cross section of the third plugging part is triangular, the third plugging part and the third installation part are integrally formed, the front side face of the third plugging part is fixedly connected with the rear end face of the third installation part, the included angle between the plane of the left side face of the third plugging part and the plane of the rear end face of the third installation part is smaller than 90 degrees, and the included angle between the plane of the right side face of the third plugging part and the plane of the rear end face of the third installation part is larger than 90 degrees; the cross section of fourth plug portion is triangle-shaped, fourth plug portion with the fourth installation department is integrated into one piece, the leading flank of fourth plug portion with the rear end face fixed connection of fourth installation department, fourth plug portion left surface place plane with contained angle between fourth installation department rear end face place plane is greater than 90, just fourth plug portion right surface place plane with contained angle between fourth installation department rear end face place plane is less than 90.

The trailing flank of first mounting panel extends backward and is provided with a plurality of first convex parts, just the trailing flank of second mounting panel extends backward and is provided with a plurality of second convex parts.

The utility model has the advantages of it is following and beneficial effect: the embodiment of the utility model provides an installation component for fixing protection network, it includes the connecting plate, first installing support and second installing support, the shape of connecting plate is square, one side along length direction is provided with first mounting hole and second mounting hole on the connecting plate, opposite side along length direction is provided with third mounting hole and fourth mounting hole on the connecting plate, be provided with one or more connecting holes along width direction on the connecting plate, first installing support includes first mounting panel, first installation department and second installation department, the shape of first mounting panel is square, the left end of first mounting panel and the front end fixed connection of first installation department, and the rear end of first installation department sets up in first mounting hole, the right-hand member of first mounting panel and the front end fixed connection of second installation department, and the rear end of second installation department sets up in the second mounting hole, the second installing support includes the second mounting panel, The left end of the second mounting plate is fixedly connected with the front end of the third mounting part, the rear end of the third mounting part is arranged in the third mounting hole, the right end of the second mounting plate is fixedly connected with the front end of the fourth mounting part, and the rear end of the fourth mounting part is arranged in the fourth mounting hole; through the design, the utility model has the characteristics of simple early assembly and convenient and fast later maintenance; meanwhile, the protective net is arranged on the front side face of the connecting plate, then a first mounting portion in the first mounting bracket is inserted into the first mounting hole, a second mounting portion in the first mounting bracket is inserted into the second mounting hole, and then the first mounting plate and the connecting plate are fastened and connected through fastening bolts, so that the first mounting bracket is mounted; meanwhile, a third mounting part in the second mounting bracket is inserted into the third mounting hole and a fourth mounting part is inserted into the fourth mounting hole, and then the second mounting plate is fastened and connected with the connecting plate through a fastening bolt, so that the second mounting bracket is mounted, and the protective net is firmly arranged on the connecting plate; in addition, the connecting plate can be fixedly connected with an object to be installed (such as a vertically arranged upright post) through one or more connecting holes arranged on the connecting plate, and the connecting plate has the characteristics of convenience in installation, safety and reliability.

Drawings

Fig. 1 is a schematic front view structure diagram of a mounting assembly for fixing a protection net provided by an embodiment of the present invention.

Fig. 2 is a schematic front view structure diagram of a connection plate provided in an embodiment of the present invention.

Fig. 3 is a schematic sectional view in the direction of a-a in fig. 2.

Fig. 4 is a schematic sectional view in the direction B-B in fig. 2.

Fig. 5 is a schematic bottom view of the first mounting bracket according to an embodiment of the present invention.

Fig. 6 is a schematic front view structure diagram of a first mounting bracket according to an embodiment of the present invention.

Fig. 7 is a schematic bottom view of a second mounting bracket according to an embodiment of the present invention.

Fig. 8 is a schematic front view of a second mounting bracket according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The invention will be further described with reference to the drawings and specific examples.

As shown in fig. 1 to 8: the mounting component for fixing the protective net provided by the embodiment of the invention comprises a connecting plate 100, a first mounting bracket and a second mounting bracket, wherein the connecting plate 100 is square, one side of the connecting plate 100 along the length direction is provided with a first mounting hole 101 and a second mounting hole 102, namely the connecting plate 100 is sequentially provided with the first mounting hole 101 and the second mounting hole 102 from left to right along the upper part of the length direction, the first mounting bracket and the second mounting bracket can both be made of PE plastic, the other side of the connecting plate 100 along the length direction is provided with a third mounting hole 103 and a fourth mounting hole 104, namely the lower part of the connecting plate 100 along the length direction is sequentially provided with the third mounting hole 103 and the fourth mounting hole 104 from left to right, meanwhile, the first mounting bracket and the second mounting bracket can both be made of PE plastic, the connecting plate 100 is provided with one or more connecting holes 105 along the width direction, that is, the connecting plate 100 can be fixedly connected with an object to be mounted (for example, a vertically arranged upright post) through one or more connecting holes 105, and has the characteristics of convenient installation, safety and reliability; the first mounting bracket comprises a first mounting plate 121, a first mounting part 111 and a second mounting part 112, the first mounting plate 121 is square in shape, the left end of the first mounting plate 121 is fixedly connected with the front end of the first mounting part 111, the rear end of the first mounting part 111 is arranged in a first mounting hole 101, the right end of the first mounting plate 121 is fixedly connected with the front end of the second mounting part 112, the rear end of the second mounting part 112 is arranged in a second mounting hole 102, the second mounting bracket comprises a second mounting plate 122, a third mounting part 113 and a fourth mounting part 114, the second mounting plate 122 is square in shape, the left end of the second mounting plate 122 is fixedly connected with the front end of the third mounting part 113, the rear end of the third mounting part 113 is arranged in a third mounting hole 103, the right end of the second mounting plate 122 is fixedly connected with the front end of the fourth mounting part 114, and the rear end of the fourth mounting portion 114 is disposed in the fourth mounting hole 104. Meanwhile, the cross sections of the first mounting hole 101 and the second mounting hole 102 are square, that is, the cross sections are respectively matched with the rear end faces of the first mounting part 111 and the second mounting part 112, the cross section area of the first mounting hole 101 is larger than that of the first mounting part 111, and the cross section area of the second mounting hole 102 is larger than that of the second mounting part 112, so that the first mounting part 111 can be conveniently and quickly inserted into the first mounting hole 101, and the second mounting part 112 can be conveniently and quickly inserted into the second mounting hole 102, so that the quick mounting of the first mounting bracket is completed; in addition, the cross sections of the third mounting hole 103 and the fourth mounting hole 104 are both square, that is, the cross sections are respectively matched with the rear end surfaces of the third mounting portion 113 and the fourth mounting portion 114, the cross section area of the third mounting hole 103 is larger than that of the third mounting portion 113, and the cross section area of the fourth mounting hole 104 is larger than that of the fourth mounting portion 114, so that the third mounting portion 113 can be conveniently and quickly inserted into the third mounting hole 103, and the fourth mounting portion 114 can be conveniently and quickly inserted into the fourth mounting hole 104, and the second mounting bracket can be quickly mounted.

The embodiment of the utility model provides an installation component for fixing protection network, the shape of first mounting panel 121, first installation department 111 and second installation department 112 is square, just first mounting panel 121, first installation department 111 and second installation department 112 are integrated into one piece, and then can improve the fastness that first installation department 111 and second installation department 112 and first mounting panel 121 combined together, and then prolong the life of first installing support.

The embodiment of the utility model provides a mounting assembly for fixing protection network, the width homogeneous phase of first mounting panel 121, first installation department 111 and second installation department 112 equals, makes things convenient for the processing of first installing support early stage and improves machining efficiency.

The embodiment of the utility model provides an installation component for fixing protection network, first installing support still includes first plug portion 131 and second plug portion 132, first plug portion 131 is fixed to be set up in the rear end of first installation department 111, first installation department 111 passes through first plug portion 131 and sets up in first mounting hole 101; the second plug portion 132 is fixedly disposed at a rear end of the second mounting portion 112, and the second mounting portion 112 is disposed in the second mounting hole 102 through the second plug portion 132.

The embodiment of the utility model provides an installation component for fixing protection network, the cross section of first plug portion 131 is triangle-shaped, first plug portion 131 with first installation department 111 is integrated into one piece, the leading flank of first plug portion 131 with the rear end face fixed connection of first installation department 111, the contained angle between the plane that the left side of first plug portion 131 is located and the plane that the rear end face of first installation department 111 is located is less than 90 °, and the contained angle between the plane that the right side of first plug portion 131 is located and the plane that the rear end face of first installation department 111 is located is greater than 90 °; the cross section of second plug portion 132 is triangle-shaped, second plug portion 132 with second installation 112 portion is integrated into one piece, the leading flank of second plug portion 132 with the rear end face fixed connection of second installation department 122, second plug portion 132 left surface place plane with contained angle between second installation department 122 rear end face place plane is greater than 90, just second plug portion 132 right surface place plane with contained angle between second installation department 122 rear end face place plane is less than 90. Through the above design, that is, the rear end face of the first mounting portion 111 is fixedly provided with the first inserting and pulling portion 131 and the rear end face of the second mounting portion 112 is fixedly provided with the second inserting and pulling portion 132, and the cross sections of the first inserting and pulling portion 131 and the second inserting and pulling portion 132 are both triangular, so that the first mounting portion 111 can be conveniently and quickly inserted into the first mounting hole 101 through the first inserting and pulling portion 131, and the second mounting portion 112 can be conveniently and quickly inserted into the second mounting hole 102 through the second inserting and pulling portion 132.

The embodiment of the utility model provides an installation component for fixing protection network, the shape of second mounting panel 122, third installation department 113 and fourth installation department 114 is square, just second mounting panel 122, third installation department 113 and fourth installation department 114 are integrated into one piece, consequently can improve the fastness that third installation department 113 and fourth installation department 114 combined together with second mounting panel 122, and then prolong the life of this second installing support.

The embodiment of the utility model provides a mounting assembly for fixing protection network, the width homogeneous phase of second mounting panel 122, third installation department 113 and fourth installation department 114 equals, makes things convenient for the processing of second installing support earlier stage and improves machining efficiency.

The embodiment of the utility model provides an installation component for fixing protection network, the second installing support still includes third plug portion 133 and fourth plug portion 134, third plug portion 133 is fixed to be set up in the rear end of third installation department 113, third installation department 114 passes through third plug portion 133 and sets up in third mounting hole 103; the fourth plug portion 134 is fixedly disposed at the rear end of the fourth mounting portion 114, and the fourth mounting portion 114 is disposed in the fourth mounting hole 104 through the fourth plug portion 134.

The embodiment of the utility model provides an installation component for fixing protection network, the cross section of third plug portion 133 is triangle-shaped, third plug portion 133 with third installation department 113 is integrated into one piece, consequently can improve the fastness that third plug portion 133 and third installation department 113 combined together, the leading flank of third plug portion 133 with the rear end face fixed connection of third installation department 113, the contained angle between the plane that third plug portion 133 left surface is located and the plane that third installation department 113 rear end face is located is less than 90, and the contained angle between the plane that third plug portion 133 right surface is located and the plane that third installation department 113 rear end face is located is greater than 90; the cross section of fourth plug portion 134 is triangle-shaped, fourth plug portion 134 with fourth installation department 114 is integrated into one piece, consequently can improve the fastness that fourth plug portion 134 and fourth installation department 114 combined together, the leading flank of fourth plug portion 134 with the rear end face fixed connection of fourth installation department 114, fourth plug portion 134 left surface place plane with the contained angle between fourth installation department 114 rear end face place plane is greater than 90, just fourth plug portion 134 right surface place plane with the contained angle between fourth installation department 114 rear end face place plane is less than 90. Through the above design, that is, the rear end face of the third mounting portion 113 is fixedly provided with the third plugging portion 133 and the rear end face of the fourth mounting portion 114 is fixedly provided with the fourth plugging portion 134, and the cross sections of the third plugging portion 133 and the fourth plugging portion 134 are both triangular, so that the third mounting portion 113 can be conveniently and quickly inserted into the third mounting hole 103 through the third plugging portion 133, and the fourth mounting portion 114 can be quickly inserted into the fourth mounting hole 104 through the fourth plugging portion 134, and the mounting is convenient and quick.

The embodiment of the utility model provides a mounting assembly for fixing protection network, the trailing flank backward extension of first mounting panel 121 is provided with a plurality of first convex parts 141, just the trailing flank backward extension of second mounting panel 122 is provided with a plurality of second convex parts 142, can improve the fastness that first convex part 141 and first mounting panel 121 and second convex part 142 and second installation department 122 combined together. Through the above design, that is, the plurality of first protrusions 141 are provided at the rear side of the first mounting plate 121, when the first mounting bracket is mounted on the protection net, that is, between the first mounting plate 121 and the connection plate 100, the protection net can be fixed by the plurality of first protrusions 141, so as to prevent the protection net from shaking, and when the protection net is mounted on the second mounting bracket, that is, between the second mounting plate 122 and the connection plate 100, the protection net can be further fixed by the plurality of second protrusions 142, so as to prevent the protection net from shaking, so that the safety and reliability are improved.

The embodiment of the utility model provides a mounting assembly for fixing protection network is provided with one or more first fixed orificess 151 along length direction on the first mounting panel 121, specifically can set up two first fixed orificess 151, and on the connecting plate 100 with the corresponding position of first fixed orificess 151 is provided with third fixed orifices 153, third fixed orifices 153 are the screw hole, and third fixed orifices 153 do not run through connecting plate 100, and when first installing support set up on the connecting plate 100, when also installing the protection network between first installing support and connecting plate 100, run through first fixed orifices 151 and screw in third fixed orifices 153 with fastening bolt to be connected first mounting panel 121 in the first installing support with connecting plate 100 more firmly, make things convenient for the dismantlement maintenance in equipment and the later stage of earlier stage.

In the mounting assembly for fixing the protection net provided by the embodiment of the present invention, one or more second fixing holes 152, specifically two second fixing holes 152, are provided on the second mounting plate 122 along the length direction, and a fourth fixing hole 154 is provided on the connecting plate 100 at a position corresponding to the second fixing holes 152, the fourth fixing hole 154 is a threaded hole, and the fourth fixing hole 154 does not penetrate through the connecting plate 100, when the second mounting bracket is provided on the connecting plate 100, i.e. when the protection net is mounted between the second mounting bracket and the connecting plate 100, a fastening bolt penetrates through the second fixing hole 152 and is screwed into the fourth fixing hole 154, so as to connect the second mounting plate 122 in the second mounting bracket and the connecting plate 100 more firmly, thereby facilitating the assembly in the early stage and the disassembly maintenance in the later stage, i.e. connect the protection net and the connecting plate 100 firmly through the first mounting bracket and the second mounting bracket, the safety and reliability are improved to a certain degree.

The embodiment of the utility model provides an installation component for fixing protection network, during the installation, set up the protection network in the leading flank of connecting plate 100, then insert first installation department 111 in the first installing support into first mounting hole 101 through first plug portion 131 and second installation department 112 inserts in second mounting hole 102 through second plug portion 132, then fasten first mounting panel 121 and connecting plate 100 and connect through fastening bolt, namely accomplish the installation of first installing support; meanwhile, the third mounting part 113 in the second mounting bracket is inserted into the third mounting hole 103 through the third plugging part 133 and the fourth mounting part 114 is inserted into the fourth mounting hole 104 through the fourth plugging part 134, and then the second mounting plate is fastened and connected with the connecting plate 100 through the fastening bolt, that is, the mounting of the second mounting bracket is completed, so that the protective net is firmly arranged on the connecting plate 100; in addition, the two connecting holes 105 are formed in the connecting plate 100, that is, the upper part and the lower part of the connecting plate 100 are respectively provided with the connecting holes 105, so that the connecting plate 100 can be fixedly connected with an object to be installed (such as a vertically arranged upright post), and the connecting plate has the characteristics of convenience in installation, safety and reliability.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a mounting assembly for fixing protection network which characterized in that: including connecting plate, first installing support and second installing support, the shape of connecting plate is square, be provided with first mounting hole and second mounting hole along length direction's one side on the connecting plate, the opposite side along length direction is provided with third mounting hole and fourth mounting hole on the connecting plate, be provided with one or more connecting holes along width direction on the connecting plate, first installing support includes first mounting panel, first installation department and second installation department, the shape of first mounting panel is square, the left end of first mounting panel with the front end fixed connection of first installation department, just the rear end of first installation department sets up in first mounting hole, the right-hand member of first mounting panel with the front end fixed connection of second installation department, just the rear end of second installation department sets up in the second mounting hole, the second installing support includes second mounting panel, Third installation department and fourth installation department, the shape of second mounting panel is square, the left end of second mounting panel with the front end fixed connection of third installation department, just the rear end of third installation department sets up in the third mounting hole, the right-hand member of second mounting panel with the front end fixed connection of fourth installation department, just the rear end of fourth installation department sets up in the fourth mounting hole.

2. The mounting assembly for a fixed protective screening according to claim 1, wherein the first mounting plate, the first mounting portion and the second mounting portion are all square in shape and are integrally formed.

3. The mounting assembly for a fixed protective screening of claim 2, wherein the widths of the first mounting plate, the first mounting portion and the second mounting portion are all equal.

4. The mounting assembly for fixing the protective net according to any one of claims 1 to 3, wherein the first mounting bracket further comprises a first plugging portion and a second plugging portion, the first plugging portion is fixedly arranged at the rear end of the first mounting portion, and the first mounting portion is arranged in the first mounting hole through the first plugging portion; the second plug portion is fixedly arranged at the rear end of the second installation portion, and the second installation portion is arranged in the second installation hole through the second plug portion.

5. The mounting assembly for the fixed protective screening according to claim 4, wherein the cross section of the first plugging portion is triangular, the first plugging portion and the first mounting portion are integrally formed, the front side surface of the first plugging portion is fixedly connected with the rear end surface of the first mounting portion, an included angle between a plane where the left side surface of the first plugging portion is located and a plane where the rear end surface of the first mounting portion is located is smaller than 90 degrees, and an included angle between the plane where the right side surface of the first plugging portion is located and the plane where the rear end surface of the first mounting portion is located is larger than 90 degrees;

the cross section of second plug portion is triangle-shaped, second plug portion with the second installation department is integrated into one piece, the leading flank of second plug portion with the rear end face fixed connection of second installation department, second plug portion left surface place plane with contained angle between second installation department rear end face place plane is greater than 90, just second plug portion right surface place plane with contained angle between second installation department rear end face place plane is less than 90.

6. The mounting assembly for a fixed protective screening according to claim 1, wherein the second mounting plate, the third mounting portion and the fourth mounting portion are all square in shape, and the second mounting plate, the third mounting portion and the fourth mounting portion are integrally formed.

7. The mounting assembly for a fixed protective screening of claim 6, wherein the widths of the second mounting plate, the third mounting portion and the fourth mounting portion are all equal.

8. The mounting assembly for fixing the protective net according to claim 1 or 6, wherein the second mounting bracket further comprises a third plugging portion and a fourth plugging portion, the third plugging portion is fixedly arranged at the rear end of the third mounting portion, and the third mounting portion is arranged in the third mounting hole through the third plugging portion; the fourth plug portion is fixedly arranged at the rear end of the fourth installation portion, and the fourth installation portion is arranged in the fourth installation hole through the fourth plug portion.

9. The mounting assembly for the fixed protective screening according to claim 8, wherein the cross section of the third plugging portion is triangular, the third plugging portion and the third mounting portion are integrally formed, the front side of the third plugging portion is fixedly connected with the rear end face of the third mounting portion, an included angle between a plane where the left side face of the third plugging portion is located and a plane where the rear end face of the third mounting portion is located is smaller than 90 degrees, and an included angle between the plane where the right side face of the third plugging portion is located and the plane where the rear end face of the third mounting portion is located is larger than 90 degrees;

the cross section of fourth plug portion is triangle-shaped, fourth plug portion with the fourth installation department is integrated into one piece, the leading flank of fourth plug portion with the rear end face fixed connection of fourth installation department, fourth plug portion left surface place plane with contained angle between fourth installation department rear end face place plane is greater than 90, just fourth plug portion right surface place plane with contained angle between fourth installation department rear end face place plane is less than 90.

10. The mounting assembly for a fixed protection net according to claim 1, wherein the rear side of the first mounting plate is provided with a plurality of first protrusions extending rearward, and the rear side of the second mounting plate is provided with a plurality of second protrusions extending rearward.