CN219081073U - Assembled externally hung protection system - Google Patents

Assembled externally hung protection system Download PDF

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Publication number
CN219081073U
CN219081073U CN202223532571.9U CN202223532571U CN219081073U CN 219081073 U CN219081073 U CN 219081073U CN 202223532571 U CN202223532571 U CN 202223532571U CN 219081073 U CN219081073 U CN 219081073U
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China
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vertical
upright
bolt
main
transverse
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CN202223532571.9U
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方源
黎超
卢娜
覃万平
叶海生
杨永国
李志伟
杜同健
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Guangxi Construction Engineering Group Holding Co ltd
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Guangxi Construction Engineering Group Holding Co ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

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Abstract

The utility model discloses an assembled externally hung protection system, which comprises: a main pole which is longitudinally arranged in parallel in at least two; the combined protective net is arranged on the outer end face of the main upright rod; and a triangular support system mounted on an inner end face of the main pole, wherein: triangle-shaped support system includes support girder steel and flexible diagonal brace, support girder steel bottom is installed on the floor, the one end of support girder steel is installed in main pole setting through horizontal longitudinal adjustment mechanism, flexible diagonal brace top is articulated with main pole setting, and flexible diagonal brace's bottom is articulated or articulated with the floor through flexible and support girder steel's the other end. The utility model has simple system structure and very small dead weight, adopts a combined assembly mode, is convenient to assemble and disassemble, can be used in a circulating way for many times, reduces the use cost while achieving safe and effective protection, can realize transverse and longitudinal adjustment, reduces the horizontal and vertical deviation of assembly during installation, and improves the construction efficiency.

Description

Assembled externally hung protection system
Technical Field
The utility model relates to the technical field of constructional engineering, in particular to an assembled externally hung protection system.
Background
In the building construction process, the problem of the adjacent safety protection is frequently encountered, particularly the problem of the adjacent side of the large overhanging balcony is particularly important, the traditional protection mode is to use the overhanging I-steel outer scaffold for protection, but the self weight of the overhanging I-steel platform is too large and exceeds the load allowed by the sample bag, and the installation is heavy and complicated, so that the use of the overhanging can not only improve the safety protection problem, but also increase the safety protection problem in many cases.
Patent "CN107893545A" discloses an external protector of assembled building, including the protection frame that has many horizontal poles and many montants, be provided with protection network and/or guardrail in the protection frame, external protector still includes a plurality of pre-buried setting at the fastener of prefabricated overhanging component outer end, a plurality of through the fastener with fastener fixed connection's couple seat, be provided with on the protection frame to the protruding peg of prefabricated overhanging component direction, the peg is closer to prefabricated overhanging component in protection network and/or guardrail, the protection frame passes through the peg is hung in the couple seat.
The above patent has the following drawbacks:
1. the integrated structure is adopted, so that the disassembly, assembly and turnover are inconvenient, and the dead weight is large;
2. the installation is not adjustable, and the error is great.
The information disclosed in the background section above is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art.
Disclosure of Invention
Aiming at the problems existing in the prior art, the utility model provides an assembled externally hung protection system which is simple in structure, very small in dead weight, convenient to assemble and disassemble, capable of being used in a circulating way for many times, safe and effective protection is achieved, meanwhile, the use cost is reduced, and the construction efficiency is improved.
In order to achieve the above object, the present utility model has the following technical scheme:
a modular plug-in protection system, comprising: a main pole which is longitudinally arranged in parallel in at least two; the combined protective net is arranged on the outer end face of the main upright rod; and a triangular support system mounted on an inner end face of the main pole, wherein: triangle-shaped support system includes support girder steel and flexible diagonal brace, support girder steel bottom is installed on the floor, the one end of support girder steel is installed in main pole setting through horizontal longitudinal adjustment mechanism, flexible diagonal brace top is articulated with main pole setting, and flexible diagonal brace's bottom is articulated or articulated with the floor through flexible and support girder steel's the other end.
Specifically, the side of the main upright rod is uniformly provided with a mounting hole row along the height direction, and the telescopic diagonal brace and the longitudinal adjusting mechanism are detachably mounted on the mounting hole row of the main upright rod through connecting pieces.
Specifically, one end of the connecting piece is in a U-shaped buckling groove shape, and the U-shaped buckling groove shape of the connecting piece is detachably arranged on the mounting hole row of the main upright rod through bolts; the other end of the connecting piece is provided with two transverse lugs which are used for being hinged with the top end of the telescopic diagonal brace or connected with the longitudinal adjusting mechanism.
Specifically, the transverse and longitudinal adjusting mechanism comprises a vertical adjusting bolt, a horizontal adjusting bolt and a positioning sleeve; two vertical lug plates are arranged at one end of the support steel beam, which is close to the main vertical rod, the two horizontal lug plates are arranged between the two vertical lug plates, two ends of the positioning sleeve are welded between the two horizontal lug plates of the connecting piece, and corresponding vertical waist-shaped holes are respectively arranged on the two vertical lug plates; the top end of the vertical adjusting bolt is provided with a U-shaped bolt head and is used for supporting the positioning sleeve, the bottom end of the vertical adjusting bolt penetrates through the support steel beam surface, and the vertical adjusting bolts on the upper side and the lower side of the support steel beam surface are locked through nuts; the middle area of the horizontal adjusting bolt is in threaded connection and penetrates through the positioning sleeve, and two ends of the horizontal adjusting bolt respectively penetrate through the outer side of the vertical waist-shaped holes of the horizontal lug plate and the vertical lug plate in sequence and are locked by nuts.
Specifically, the main pole setting comprises an upper pole setting, a lower pole setting, a pole setting butt joint part and pole setting connecting bolts, wherein the upper pole setting and the lower pole setting are sleeved at two ends of the pole setting butt joint part, vertical through grooves are formed in the side surfaces of the end parts of the upper pole setting and the lower pole setting, vertical elliptical holes are formed in the side surfaces of the pole setting butt joint part, transverse bolt hole limiting clamping grooves are formed in the vertical elliptical holes and the vertical through grooves, transverse bolt hole limiting clamping grooves of the vertical through grooves are arranged in an aligned mode, the top end of each pole setting connecting bolt is an elliptical limiting clamping head matched with the vertical elliptical holes, and limiting columns matched with the transverse bolt hole limiting clamping grooves are further arranged on the rear end face of an elliptical table of each elliptical limiting clamping head; the vertical rod connecting bolt sequentially penetrates through the vertical through groove and the vertical oval hole, the limiting column is connected with the limiting clamping groove of the transverse bolt hole in a clamping mode through rotation, and the vertical rod connecting bolt is locked through a nut.
Compared with the prior art, the utility model has the following beneficial effects:
1. the system has simple structure, very small dead weight, adopts a combined assembly mode, is convenient to assemble and disassemble, can be used in a circulating way for many times, achieves safe and effective protection, reduces the use cost and improves the construction efficiency.
2. The scheme adopts an assembling mode, can realize horizontal and longitudinal adjustment, and reduces the horizontal and vertical deviation values of assembly during installation.
3. According to the scheme, the telescopic diagonal bracing assembly is arranged, so that the telescopic diagonal bracing assembly can be selected as a main support or temporary diagonal bracing function, and the effect of stabilizing the protection system is achieved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a partial structure of a combined protection net according to the present utility model;
FIG. 3 is a schematic view of a partial structure of the connection of the protection net connecting piece and the horizontal cross bar of the protection net;
FIG. 4 is a schematic view of the connection structure of the upright rod connecting bolt hole, the bolt hole limiting clamping groove, the upright rod butt joint piece, the connecting bolt, the bolt limiting clamping and the like;
FIG. 5 is a schematic view of the connector of FIG. 5 according to the present utility model;
FIG. 6 is a schematic cross-sectional view of a vertical adjustment bolt, a horizontal adjustment bolt and a positioning sleeve of the present utility model;
FIG. 7 is a schematic perspective view of a vertical adjusting bolt, a horizontal adjusting bolt and a positioning sleeve according to the present utility model;
fig. 8 is a schematic view of the triangular support system of the present utility model.
In the figure, a 1-triangle support system; 11-floor fixing bolts; 12-supporting steel beams; 121-vertical ear plates; 122-vertical kidney-shaped holes; 13-a connector; 131-transverse ear plates; 14-telescoping diagonal braces; 15-a transverse and longitudinal adjustment mechanism; 151-vertical adjusting bolts; 152-horizontal adjusting bolts; 154-positioning sleeve; 2-a main upright; 21-vertical through grooves; 22-vertical rod connecting bolt holes; 221-a transverse bolt hole limiting clamping groove; 23-a vertical rod butt joint part; 231-vertical elliptical holes; 24-vertical rod connecting bolts; 241-limit column; 3-temporary diagonal bracing; 31-a diagonal bracing fixture; 4-combined protective net; 41-a protective net connecting piece; 411-connector securing shims; 42-a horizontal cross bar of the protective net; 43-a protective net outer frame; 44-a protective net diagonal rod; 45-perforated steel plate protective net.
Detailed Description
To describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description is made with reference to the embodiments in conjunction with the accompanying drawings. In the description of the present embodiment, it should be understood that terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience in describing the present embodiment and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The present embodiment provides an assembled external protection system, referring specifically to fig. 1-8, the assembled external protection system includes: a main upright 2, a combined protective net 4 and a triangular support system 1.
Wherein the main uprights 2 are longitudinally arranged in parallel in at least two; the combined protective net 4 is arranged on the outer end surface of the main upright rod 2; the triangular support system 1 is arranged on the inner end face of the main upright rod 2 and is used for connecting and fixing the main upright rod 2 and a floor slab.
The triangular support system 1 comprises a support steel beam 12 and a telescopic diagonal brace 14, wherein the bottom of the support steel beam 12 is installed on a floor slab, referring to fig. 6 and 8 specifically, a floor slab fixing bolt for connecting the floor slab is arranged on the support steel beam 12, the floor slab fixing bolt 11 is not limited in the system, and a pre-buried bolt can be adopted, or only a pre-buried bolt sleeve or a rear perforation can be adopted, and the support is connected by penetrating through the floor slab through the bolt.
One end of the support steel beam 12 is arranged on the main upright 2 through a transverse and longitudinal adjusting mechanism 15, the top end of the telescopic diagonal brace 14 is hinged with the main upright 2, and the bottom end of the telescopic diagonal brace 14 is hinged with the other end of the support steel beam 12 or the floor slab through telescopic operation.
By arranging the telescopic diagonal bracing assembly, the telescopic diagonal bracing assembly can be selected as a main support or a temporary diagonal bracing function, and the diagonal bracing forms a space truss, so that the rigidity of the structure and the shock resistance of the structure are effectively increased, and the effect of stabilizing the protection system is achieved. The triangular support system 1 is arranged on the bottom row support system of the whole system, and the upper floor slab can also adopt the triangular support system 1 as a temporary diagonal bracing 3. The bottom end of the telescopic diagonal brace 14 can be hinged with the other end of the support steel beam 12 or the floor slab through telescopic operation to form the temporary diagonal brace 3. The adjustable telescopic links are actually parts of the triangular support system 1, and the length of the inclined links is adjusted according to actual requirements so as to adjust the perpendicularity of the whole blighted main vertical rod, achieve the purpose of stabilizing the protection system and adjust the vertical angle of the elevation protection net of the protection system.
The temporary diagonal bracing 3 is a part of an externally hung protection system, and when the distance between the support steel beams on the upper layer and the lower layer is less than or equal to 3 meters, the temporary diagonal bracing between the two support steel beams can be removed. When the length is greater than 3 meters, whether temporary diagonal bracing is reserved or not is determined according to the scheme calculation result. The temporary diagonal brace is used for temporarily fixing the main upright on the working surface. One end of the temporary diagonal bracing is connected with the main upright rod through a bolt by using a connecting piece 13, and the other end of the temporary diagonal bracing is connected with the floor slab through a bolt by using a diagonal bracing fixing piece 31. The diagonal bracing fixing piece 31 and the floor are fixed in the same manner as the support system and the floor are fixed. The telescopic diagonal brace is a component of the prior art, and is not described herein.
As a preferred technical solution of this embodiment, as shown in fig. 1, a side surface of the main upright 2 is uniformly provided with a mounting hole row along the height direction thereof, the mounting hole row is composed of a plurality of upright connecting bolt holes 22, and the telescopic diagonal bracing 14 and the longitudinal adjusting mechanism 15 are detachably mounted on the mounting hole row of the main upright 2 through a connecting piece 13. Specifically, one end of the connecting piece 13 is in a U-shaped buckling groove shape, and the U-shaped buckling groove shape of the connecting piece 13 is detachably arranged on the mounting hole row of the main upright rod 2 through bolts; the other end of the connecting piece 13 is provided with two transverse lugs 131 which are used for being hinged with the top end of the telescopic diagonal brace 14 or connected with the longitudinal adjusting mechanism 15.
Referring to fig. 6, 7 and 8, the horizontal and vertical adjustment mechanism 15 includes a vertical adjustment bolt 151, a horizontal adjustment bolt 152 and a positioning sleeve 154; two vertical lug plates 121 are arranged at one end of the support steel beam 12 close to the main vertical rod 2, two transverse lug plates 131 are arranged between the two vertical lug plates 121, two ends of a positioning sleeve 154 are welded between the two transverse lug plates 131 of the connecting piece 13, and corresponding vertical waist-shaped holes 122 are respectively arranged on the two vertical lug plates 121;
the top end of the vertical adjusting bolt 151 is provided with a U-shaped bolt head and is used for supporting the top positioning sleeve 154, the bottom end of the vertical adjusting bolt 151 penetrates through the surface of the support steel beam 12, and the vertical adjusting bolts 151 on the upper side and the lower side of the surface of the support steel beam 12 are locked through nuts;
the middle area of the horizontal adjusting bolt 152 is in threaded connection and penetrates through the positioning sleeve 154, and two ends of the horizontal adjusting bolt 152 sequentially penetrate through the outer sides of the vertical waist-shaped holes 122 of the horizontal lug plate 131 and the vertical lug plate 121 respectively and are locked by nuts.
The vertical adjusting bolt 151 is mainly used for fine adjustment of vertical deviation between the main upright rod 2 and the support system when the main upright rod 2 is connected with the support system, and the vertical adjusting bolt 151 supports the positioning sleeve 154 through adjusting a vertical nut, so that the connecting piece 13 is driven to move in the vertical direction relative to the support steel beam 12; the horizontal adjusting bolt 152 is mainly used for fine adjustment of horizontal deviation between the main upright 2 and the support system when the main upright 2 is connected with the support system, and the horizontal position is finely adjusted and positioned by loosening the transverse clamping nut, so that the U-shaped bolt heads of the support steel beam 12 and the vertical adjusting bolt 151 are driven to slide in the horizontal direction of the positioning sleeve 154, and then slide horizontally relative to the connecting piece 13.
Referring to fig. 4, the main upright 2 includes an upper upright, a lower upright, an upright butt joint member 23, and an upright connecting bolt 24, wherein the upper upright and the lower upright are sleeved at two ends of the upright butt joint member 23, the side surfaces of the end parts of the upper upright and the lower upright are respectively provided with a vertical through slot 21, the side surfaces of the upright butt joint member 23 are respectively provided with a vertical elliptical hole 231, the vertical elliptical holes 231 and the vertical through slots 21 are respectively provided with a transverse bolt hole limiting clamping slot 221, the vertical elliptical holes 231 and the transverse bolt hole limiting clamping slots 221 of the vertical through slots 21 are arranged in opposite positions, the top end of the upright connecting bolt 24 is provided with an elliptical limiting clamp matched with the vertical elliptical holes 231, and the rear end surface of the elliptical table of the elliptical limiting clamp is also provided with a limiting post 241 matched with the transverse bolt hole limiting clamping slots 221; the vertical rod connecting bolt 24 sequentially passes through the vertical through groove 21 and the vertical elliptical hole 231, and the limiting column 241 is connected with the limiting clamping groove 221 of the transverse bolt hole in a clamping way through rotation, and the vertical rod connecting bolt 24 is locked through a nut.
The transverse bolt hole limiting clamping groove 221 is a small clamping groove formed in the vertical elliptical hole 231 and the vertical through groove 21 and used for clamping with the limiting column 241 on the connecting bolt 24, so that the vertical rod connecting bolt 24 is prevented from rotating and slipping when being screwed down. The bolt head cap of the upright connecting bolt 24 is designed into an ellipse, the size of the bolt head cap can be just plugged into a reserved upright connecting bolt 24 hole on the main upright 2 or the upright butt joint member 23, and the limit clamping groove is complemented to be blocked when the bolt head cap is pulled outwards after being plugged into the reserved upright connecting bolt 24 hole by 90 degrees, so that the bolt head cap can not rotate any more. All connecting pieces 13 installed on the main upright rod 2 can use the upright rod connecting bolts 24, so that the connection is stable and the disassembly and the assembly are convenient.
Referring to fig. 1 and 2, the combined type protection net 4 includes a protection net connecting member 41, a protection net horizontal cross bar 42, a protection net outer frame 43, a protection net diagonal bar 44 and a perforated steel plate protection net 45, the protection net horizontal cross bar 42 and the protection net diagonal bar 44 are arranged in a crossing manner and connected inside the protection net outer frame 43, and the perforated steel plate protection net 45 is fixedly connected on the protection net outer frame 43;
the protection network horizontal cross rod 42 is connected with the main vertical rod 2 through the protection network connecting piece 41, wherein the protection network connecting piece 41 and the protection network horizontal cross rod 42 are connected through bolts, meanwhile, the connecting piece fixing gasket 411 is used in a matched mode, the connecting piece fixing gasket 411 is used for tightly plugging a gap between the protection network connecting piece 41 and the protection network horizontal cross rod 42, because the design width of a fixing groove of the protection network connecting piece 41 is just twice as wide as the protection network horizontal cross rod 42, two protection network horizontal cross rods 42 can be installed, and when only one protection network horizontal cross rod 42 is fixed, the gasket is needed.
In addition, the pole setting in this embodiment can be square tube structure, lightens the holistic weight of system.
In conclusion, the system of the embodiment has simple structure and very small dead weight, adopts a combined assembly mode, is convenient to assemble and disassemble, can be used in a circulating way for many times, achieves safe and effective protection, reduces the use cost and improves the construction efficiency; the horizontal and vertical adjustment can be realized, and the horizontal and vertical deviation values of assembly are reduced during installation. According to the scheme, the telescopic diagonal bracing assembly is arranged, so that the telescopic diagonal bracing assembly can be selected as a main support or temporary diagonal bracing function, and the effect of stabilizing the protection system is achieved. Finally, the aim of the embodiment is achieved.
While the utility model has been described in detail with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims (5)

1. A modular plug-in protection system, comprising:
a main upright (2) longitudinally arranged in parallel in at least two;
a combined protective net (4) which is arranged on the outer end surface of the main upright (2);
and a triangular support system (1) mounted on the inner end face of the main upright (2), wherein:
triangle-shaped support system (1) is including support girder steel (12) and flexible diagonal brace (14), install on the floor bottom support girder steel (12), install on main pole setting (2) through horizontal longitudinal adjustment mechanism (15) in the one end of support girder steel (12), flexible diagonal brace (14) top is articulated with main pole setting (2), and the bottom of flexible diagonal brace (14) is articulated or articulated with the floor through the other end of flexible and support girder steel (12).
2. The modular plug-in protection system of claim 1, wherein: the side of the main upright rod (2) is uniformly provided with a mounting hole row along the height direction, and the telescopic diagonal brace (14) and the longitudinal adjusting mechanism (15) are detachably mounted on the mounting hole row of the main upright rod (2) through the connecting piece (13).
3. The modular plug-in protection system of claim 2, wherein: one end of the connecting piece (13) is in a U-shaped buckling groove shape, and the U-shaped buckling groove shape of the connecting piece (13) is detachably arranged on the mounting hole row of the main upright rod (2) through bolts; the other end of the connecting piece (13) is provided with two transverse lug plates (131) which are used for being hinged with the top end of the telescopic diagonal brace (14) or connected with the longitudinal adjusting mechanism (15).
4. The modular plug-in protection system of claim 3, wherein: the transverse and longitudinal adjusting mechanism (15) comprises a vertical adjusting bolt (151), a horizontal adjusting bolt (152) and a positioning sleeve (154);
two vertical lug plates (121) are arranged at one end of the support steel beam (12) close to the main vertical rod (2), two transverse lug plates (131) are arranged between the two vertical lug plates (121), two ends of a positioning sleeve (154) are welded between the two transverse lug plates (131) of the connecting piece (13), and corresponding vertical kidney-shaped holes (122) are respectively arranged on the two vertical lug plates (121);
the top end of the vertical adjusting bolt (151) is a U-shaped bolt head and is used for supporting the positioning sleeve (154), the bottom end of the vertical adjusting bolt (151) penetrates through the surface of the support steel beam (12), and the vertical adjusting bolts (151) on the upper side and the lower side of the surface of the support steel beam (12) are locked through nuts;
the middle area of the horizontal adjusting bolt (152) is in threaded connection and penetrates through the positioning sleeve (154), and two ends of the horizontal adjusting bolt (152) respectively penetrate through the outer sides of the vertical waist-shaped holes (122) of the horizontal lug plate (131) and the vertical lug plate (121) in sequence and are locked by nuts.
5. The assembled external hanging protection system according to claim 1, wherein the main upright (2) comprises an upper upright, a lower upright, an upright butt joint member (23) and an upright connecting bolt (24), the upper upright and the lower upright are sleeved at two ends of the upright butt joint member (23),
vertical through grooves (21) are arranged on the side surfaces of the end parts of the upper vertical rod and the lower vertical rod, vertical elliptical holes (231) are arranged on the side surfaces of the vertical rod butt joint parts (23),
transverse bolt hole limiting clamping grooves (221) are respectively arranged on the vertical elliptical holes (231) and the vertical through grooves (21), the transverse bolt hole limiting clamping grooves (221) of the vertical elliptical holes (231) and the vertical through grooves (21) are arranged in an aligned mode,
the top end of the upright connecting bolt (24) is an oval limiting clamp matched with the vertical oval hole (231), and a limiting column (241) matched with a transverse bolt hole limiting clamping groove (221) is further arranged on the rear end face of the oval table of the oval limiting clamp;
the vertical rod connecting bolt (24) sequentially penetrates through the vertical through groove (21) and the vertical elliptical hole (231), the limiting column (241) is connected with the transverse bolt hole limiting clamping groove (221) in a clamping mode through rotation, and the vertical rod connecting bolt (24) is locked through a nut.
CN202223532571.9U 2022-12-29 2022-12-29 Assembled externally hung protection system Active CN219081073U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223532571.9U CN219081073U (en) 2022-12-29 2022-12-29 Assembled externally hung protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223532571.9U CN219081073U (en) 2022-12-29 2022-12-29 Assembled externally hung protection system

Publications (1)

Publication Number Publication Date
CN219081073U true CN219081073U (en) 2023-05-26

Family

ID=86400976

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223532571.9U Active CN219081073U (en) 2022-12-29 2022-12-29 Assembled externally hung protection system

Country Status (1)

Country Link
CN (1) CN219081073U (en)

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