阅读说明：本技术 一种房建施工防护栏 (Building construction protective fence ) 是由 陈育翰 黄蒙娜 王志海 于 2021-09-26 设计创作，主要内容包括：本申请公开了一种房建施工防护栏,涉及房建施工的领域,其包括两个安装于地面上的竖杆以及两个所述竖杆之间设置有防护板,所述防护板的一侧沿水平方向连接有安装盒,所述安装盒背离防护板的一侧为开口,所述安装盒内放置有防水布,所述安装盒内设置有用于收卷防水布的收纳组件,两个所述竖杆相邻防护板的同侧外侧壁上均设置有用于撑开防水布的支撑组件。当外界突然下雨时,工人能够通过收纳组件将防水布从安装盒内拉出,接着将防水布的一端安装在支撑组件上,从而将防水布撑开,工人即可在防水布下暂时避雨；另外,当阳光较为猛烈时,也可将防水布撑开,用于遮挡阳光,工人可在防水布下进行施工。(The application discloses construction rail guard is built in room relates to the field that the construction was built in the room, and it includes that two are installed in subaerial montant and two be provided with the guard plate between the montant, one side of guard plate is connected with the mounting box along the horizontal direction, one side that the mounting box deviates from the guard plate is the opening, the tarpaulin has been placed in the mounting box, be provided with the storage component who is used for the rolling tarpaulin in the mounting box, two all be provided with the supporting component who is used for strutting the tarpaulin on the homonymy lateral wall of the adjacent guard plate of montant. When the outside suddenly rains, a worker can pull the waterproof cloth out of the mounting box through the storage assembly, and then one end of the waterproof cloth is mounted on the supporting assembly, so that the waterproof cloth is spread, and the worker can temporarily take shelter from the rain under the waterproof cloth; in addition, when sunshine is violent, also can strut the tarpaulin for shelter from sunshine, the workman can be under the tarpaulin and carry out the construction.)

1. The utility model provides a construction rail guard is built in room, includes two and installs in subaerial montant (1) and set up in guard plate (2) between two montants (1), its characterized in that: one side of guard plate (2) is connected with mounting box (3) along the horizontal direction, one side that mounting box (3) deviates from guard plate (2) is the opening, tarpaulin (4) have been placed in mounting box (3), be provided with storage assembly (5) that are used for rolling tarpaulin (4) in mounting box (3), two all be provided with support component (6) that are used for strutting tarpaulin (4) on the homonymy lateral wall of the adjacent guard plate (2) of montant (1).

2. The building construction protective guard of claim 1, wherein: accomodate subassembly (5) including accomodating axle (51) and accomodating hand wheel (52), the both ends of accomodating axle (51) are connected with mounting box (3) two inside walls rotation in opposite directions of axial respectively, the one end of accomodating axle (51) is stretched out the mounting box (3) and is connected with accomodating hand wheel (52) outward, one side and the surface connection of accomodating axle (51), the opposite side of tarpaulin (4) are connected with and are used for covering mounting box (3) open-ended mounting panel (53).

3. The building construction protective guard of claim 2, wherein: mounting panel (53) have two erection columns (531) towards one side of tarpaulin (4) along the horizontal direction interval connection, two confession erection column (531) male mounting hole (31) have been seted up to the opening border department of mounting box (3).

4. The building construction protective guard of claim 2, wherein: mounting box (3) are connected with the tighrening ring (7) that encircles in the storage shaft (51) outside towards one side of accomodating hand wheel (52), connecting groove (71) have been seted up along circumference to one side that mounting box (3) were kept away from in tighrening ring (7), sliding connection has spacing ring (8) that are used for supporting tightly accomodating hand wheel (52) in connecting groove (71), be connected with fastening spring (72) on the diapire of connecting groove (71), fastening spring (72) are kept away from the one end of connecting groove (71) diapire and are hugged closely with spacing ring (8) towards one side of mounting box (3), the lateral wall of spacing ring (8) is connected with stopper (81), the lateral wall of tighrening ring (7) is seted up along the direction of keeping away from mounting box (3) and is supplied stopper (81) card to go into and gliding spacing hole (73).

5. The building construction protective guard of claim 4, wherein: the outer side wall of the fastening ring (7) is circumferentially provided with a positioning hole (74), and one end of the positioning hole (74) is communicated with one end of the limiting hole (73) close to the mounting box (3).

6. The building construction protective guard of claim 3, wherein: the supporting component (6) comprises a supporting rod (61) and a fixing rod (62), a supporting groove (11) for the supporting rod (61) to be placed in is formed in the outer side wall of the adjacent protection plate (2) of the vertical rod (1) along the vertical direction, one end of the supporting rod (61) is hinged to the inner side wall of the upper end of the supporting groove (11), two ends of the fixing rod (62) are hinged to a fixing plate (63) and a limiting plate (64) respectively, a fixing bolt (65) is arranged on each of the fixing plate (63) and the limiting plate (64) in a penetrating mode, a first supporting hole (611) in threaded connection with the fixing bolt (65) is formed in the side wall, tightly attached to the bottom wall of the supporting groove (11), of the supporting rod (61), a second supporting hole (12) in threaded connection with the fixing bolt (65) is formed in the bottom wall of the supporting groove (11), and a supporting plate (66) is hinged to the movable end of each supporting rod (61), the supporting plate (66) is provided with a connecting hole (661) for the installation column (531) to be inserted into.

7. The building construction protective guard of claim 6, wherein: one side of the vertical rod (1) and the supporting groove (11) on the same side is provided with two fixing holes (13) which are in threaded connection with the fixing bolts (65) at intervals along the horizontal direction.

8. The building construction protective guard of claim 6, wherein: a first magnet (662) is embedded in the supporting plate (66), and a second magnet (612) which is mutually attracted with the first magnet (662) is embedded in the movable end of the supporting rod (61).

Technical Field

The application relates to the field of building construction, in particular to a building construction protective guard.

Background

The protective guard is mainly used as a separator for separating, separating or temporarily handling accidents, and can be widely used in places such as traffic safety, urban roads, engineering construction, accident sites and the like.

At present, the patent with publication number CN108798224A discloses a construction rail guard is built in room, and it includes the base that the level set up, with base upper surface grafting and isometric left stand and right stand, both ends fix respectively in the left stand and right stand one side that is close to each other and the protection network that can fold, the crossbeam of pegging graft with left stand and right stand top.

With respect to the above-described related art, the inventors consider that the following drawbacks exist: if a worker suddenly rains during construction, the worker often has no place to temporarily take shelter from the rain, and the health of the worker is easily affected after the worker rains, so that improvement is needed.

Disclosure of Invention

In order to make the workman can shelter from rain temporarily, this application provides a building construction rail guard.

The utility model provides a construction rail guard is built in room, includes that two are installed in subaerial montant and set up the guard plate between two montants, one side of guard plate is connected with the mounting box along the horizontal direction, one side that the mounting box deviates from the guard plate is the opening, the tarpaulin has been placed in the mounting box, be provided with the storage component who is used for the rolling tarpaulin in the mounting box, two all be provided with the supporting component who is used for strutting the tarpaulin on the homonymy lateral wall of the adjacent guard plate of montant.

By adopting the technical scheme, when the outside rains suddenly, a worker can pull the waterproof cloth out of the mounting box through the storage assembly, and then one end of the waterproof cloth is mounted on the supporting assembly, so that the waterproof cloth is spread, and the worker can shelter from the rain temporarily under the waterproof cloth; in addition, when sunshine is violent, also can strut the tarpaulin for shelter from sunshine, the workman can be under the tarpaulin and carry out the construction.

Optionally, the accommodating assembly comprises an accommodating shaft and an accommodating hand wheel, the two ends of the accommodating shaft are respectively connected with the two axially opposite inner walls of the mounting box in a rotating mode, one end of the accommodating shaft extends out of the mounting box and is connected with the accommodating hand wheel, one side of the waterproof cloth is connected with the surface of the accommodating shaft, and the other side of the waterproof cloth is connected with a mounting plate for covering an opening of the mounting box.

Through adopting above-mentioned technical scheme, rotate and accomodate the hand wheel, accomodate the hand wheel and drive and accomodate the axle and rotate, accomodate the axle and roll up the tarpaulin to the containing box in, after the tarpaulin was accomodate in the mounting box completely, the tarpaulin can be taut with the mounting panel for the mounting panel seals the opening of mounting box, reduces the dust in the external world and gets into the mounting box.

Optionally, one side of the mounting plate facing the waterproof cloth is connected with two mounting columns at intervals along the horizontal direction, and two mounting holes for inserting the mounting columns are formed in the opening edge of the mounting box.

Through adopting above-mentioned technical scheme, accomodate into the mounting box with the tarpaulin after for the opening of mounting box is sealed to the mounting panel, and the erection column on the mounting panel inserts in the mounting hole simultaneously, thereby restriction mounting panel takes place to slide for the mounting box, improves the stability of being connected between mounting panel and the mounting box.

Optionally, one side that the hand wheel was accomodate to the mounting box orientation is connected with the tighrening ring that encircles in the storage shaft outside, the mounting box was kept away from to the tighrening ring one side has seted up the spread groove along circumference, sliding connection has the spacing ring that is used for supporting tightly to accomodate the hand wheel in the spread groove, be connected with fastening spring on the diapire of spread groove, fastening spring keeps away from the one end of spread groove diapire and hugs closely with one side of spacing ring orientation mounting box, the lateral wall of spacing ring is connected with the stopper, the lateral wall of tighrening ring is seted up along the direction of keeping away from the mounting box and is supplied the stopper card to go into and gliding spacing hole.

Through adopting above-mentioned technical scheme, fastening spring is with the ejecting spread groove of spacing ring for the spacing ring is kept away from fastening spring's one end and is supported tightly and accomodate the hand wheel, thereby the restriction is accomodate the unexpected rotation of hand wheel.

Optionally, the outer side wall of the fastening ring is circumferentially provided with a positioning hole, and one end of the positioning hole is communicated with one end of the limiting hole, which is close to the mounting box.

Through adopting above-mentioned technical scheme, when needing to rotate and accomodate the hand wheel, can impress the spread groove with the spacing ring for the stopper slides and keeps away from the one end of accomodating the hand wheel to spacing hole, rotates the spacing ring after that, makes in the stopper card goes into the locating hole, thereby makes the spacing ring no longer support tightly and accomodate the hand wheel, conveniently accomodates the hand wheel and rotates.

It is optional, the supporting component includes bracing piece and dead lever, set up the support groove that supplies the bracing piece to put into along vertical direction on the lateral wall of the adjacent guard plate of montant, the one end of bracing piece is articulated with the inside wall of supporting the groove upper end, the both ends of dead lever articulate respectively has fixed plate and limiting plate, all wear to be equipped with fixing bolt on fixed plate and the limiting plate, set up the first supporting hole with fixing bolt threaded connection on the lateral wall that bracing piece and support groove diapire hug closely, set up the second supporting hole with fixing bolt threaded connection on the diapire of support groove, every the expansion end of bracing piece all articulates there is the backup pad, set up in the backup pad and supply erection column male connecting hole.

Through adopting above-mentioned technical scheme, with the bracing piece from supporting the inslot and roll out, and make the bracing piece keep the horizontality, hug closely the fixed plate with the lateral wall of bracing piece after that, and with the first supporting hole of one of them fixing bolt screw in, then hug closely the diapire of limiting plate and support groove, then support the hole with another fixing bolt screw in second, thereby make the dead lever provide the holding power for the bracing piece, make the bracing piece keep the horizontality all the time, 180 degrees with the backup pad rotation on the bracing piece expansion end, make one side of backup pad towards the guard plate, insert the erection column on the mounting panel respectively in the connecting hole in two backup pads at last, thereby can strut the tarpaulin, be convenient for people keep away the rain.

Optionally, two fixing holes in threaded connection with the fixing bolt are formed in one side of the vertical rod, which is on the same side as the supporting groove, and are spaced apart in the horizontal direction.

Through adopting above-mentioned technical scheme, when needing to put into the bracing piece and supporting the inslot, pull down the dead lever earlier, put into the bracing piece after that and support the inslot, then in two fixed orificess of the fixing bolt difference screw in at dead lever both ends to fix the lateral wall at the montant with the dead lever, the restriction bracing piece accident breaks away from and supports the groove.

Optionally, a first magnet is embedded in the supporting plate, and a second magnet which is mutually attracted with the first magnet is embedded at the movable end of the supporting rod.

Through adopting above-mentioned technical scheme, when needs put back the bracing piece and support the inslot, with the first magnet in the backup pad and the second magnet inter attraction on the bracing piece to the restriction backup pad overturns at will, and then the bracing piece of being convenient for is put into smoothly and is supported the inslot.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the outside suddenly rains, a worker can pull the waterproof cloth out of the mounting box through the storage assembly, and then one end of the waterproof cloth is mounted on the supporting assembly, so that the waterproof cloth is spread, and the worker can temporarily take shelter from the rain under the waterproof cloth; in addition, when sunshine is violent, also can strut the tarpaulin for shelter from sunshine, the workman can be under the tarpaulin and carry out the construction.

2. Accomodate the waterproof cloth into in the mounting box after for the opening of mounting box is sealed to the mounting panel, and the erection column on the mounting panel inserts in the mounting hole simultaneously, thereby restriction mounting panel takes place to slide for the mounting box, improves the connection stability between mounting panel and the mounting box.

3. When the hand wheel is required to be rotated and accommodated, the limiting ring can be pressed into the connecting groove, so that the limiting block slides to the limiting hole to be away from one end of the accommodating hand wheel, then the limiting ring is rotated, the limiting block is clamped into the positioning hole, the limiting ring is further prevented from tightly abutting against the accommodating hand wheel, and the hand wheel is convenient to accommodate and rotate.

4. Roll out the bracing piece from supporting the inslot, and make the bracing piece keep the horizontality, hug closely the fixed plate with the lateral wall of bracing piece after that, and with the first supporting hole of one of them fixing bolt screw in, then hug closely the limiting plate with the diapire of supporting the groove, then with another fixing bolt screw in second supporting hole, thereby make the dead lever provide the holding power for the bracing piece, make the bracing piece remain the horizontality all the time, rotate 180 degrees with the backup pad on the bracing piece expansion end, make one side of backup pad towards the guard plate, insert the erection column on the mounting panel respectively in the connecting hole on two guard plates at last, thereby can strut waterproof cloth, be convenient for people keep away the rain.

5. When the supporting rod needs to be placed into the supporting groove, the fixing rod is detached firstly, then the supporting rod is placed into the supporting groove, and then the fixing bolts at the two ends of the fixing rod are screwed into the two fixing holes respectively, so that the fixing rod is fixed on the outer side wall of the vertical rod, and the supporting rod is limited from being separated from the supporting groove accidentally.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a schematic structural view of the waterproof cloth in the embodiment of the present application after being spread.

Fig. 3 is an exploded view of a portion of the structure of an embodiment of the present application.

Fig. 4 is an exploded view of the vertical rod in the embodiment of the present application.

Fig. 5 is an exploded view of a part of the structure of the mounting box in the embodiment of the present application.

Description of reference numerals:

1. a vertical rod; 11. a support groove; 12. a second support hole; 13. a fixing hole; 2. a protection plate; 3. mounting a box; 31. mounting holes; 4. waterproof cloth; 5. a receiving assembly; 51. a storage shaft; 52. a hand wheel is accommodated; 53. mounting a plate; 531. mounting a column; 6. a support assembly; 61. a support bar; 611. a first support hole; 612. a second magnet; 62. fixing the rod; 63. a fixing plate; 64. a limiting plate; 65. fixing the bolt; 66. a support plate; 661. connecting holes; 662. a first magnet; 7. a fastening ring; 71. connecting grooves; 72. a fastening spring; 73. a limiting hole; 74. positioning holes; 8. a limiting ring; 81. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses construction rail guard is built in room. Referring to fig. 1 and 2, the building construction protective guard includes two vertical rods 1 fixedly connected to the ground along the vertical direction and a protection plate 2 fixedly connected between the two vertical rods 1, and the protection plate 2 is rectangular.

Referring to fig. 1 and 2, the outer side wall of the upper end of the protection plate 2 is fixedly connected with a mounting box 3 in a rectangular shape along the horizontal direction, and one side of the mounting box 3, which is hollow and deviates from the protection plate 2, is an opening. The containing assembly 5 is installed in the mounting box 3, the containing assembly 5 comprises a containing shaft 51 with a circular cross section and a containing hand wheel 52, two ends of the containing shaft 51 are respectively connected with two axially opposite inner walls of the mounting box 3 in a rotating mode, one end of the containing shaft 51 extends out of the mounting box 3 and is fixedly connected with the containing hand wheel 52, and the containing hand wheel 52 and the containing shaft 51 are arranged in a coaxial line. Accomodate fixedly connected with tarpaulin 4 on the circumference lateral wall of axle 51, tarpaulin 4 is PVC plastic-coated canvas, has good waterproof and cold-resistant performance. One side of the waterproof cloth 4 far away from the storage shaft 51 is fixedly connected with a mounting plate 53 for covering an opening of the mounting box 3, and the mounting plate 53 is rectangular. A worker rotates the accommodating hand wheel 52 by hand, the accommodating hand wheel 52 can drive the accommodating shaft 51 to rotate, so that the waterproof cloth 4 is wound on the outer side wall of the accommodating shaft 51, and the waterproof cloth 4 can be quickly accommodated in the mounting box 3; in addition, accomodate waterproof cloth 4 back in the mounting box 3, mounting panel 53 can be hugged closely with the opening border department of mounting box 3 to seal the opening part of mounting box 3, and then reduce in external dust gets into mounting box 3, ensure the clean and tidy in the mounting box 3.

Referring to fig. 2 and 3, the mounting posts 531 are vertically and fixedly connected to the two axial ends of one side of the mounting plate 53, which is tightly attached to the mounting box 3, the mounting holes 31 for inserting the mounting posts 531 are formed in the short edges of the two sides of the opening of the mounting box 3, and the inner side walls of the mounting holes 31 are tightly attached to the outer side walls of the mounting posts 531. After the waterproof cloth 4 is accommodated in the mounting box 3, the mounting plate 53 is tightly attached to the mounting box 3, and meanwhile, the two mounting columns 531 on the mounting plate 53 are respectively inserted into the two mounting holes 31 on the mounting box 3, so that the relative positions of the mounting plate 53 and the mounting box 3 are fixed, the mounting plate 53 is limited from sliding relative to the mounting box 3, the sealing property between the mounting plate 53 and the mounting box 3 is improved, and the external dust is further reduced from entering the mounting box 3; in addition, there is a frictional force between the outer side wall of the mounting post 531 and the inner side wall of the mounting hole 31, thereby improving the fastening between the mounting plate 53 and the mounting box 3.

Referring to fig. 3 and 4, the supporting assemblies 6 for unfolding the waterproof cloth 4 are arranged on the outer side walls of the two vertical rods 1 on the same side of the adjacent protection plates 2, and each supporting assembly 6 comprises a supporting rod 61, a fixing rod 62, a fixing plate 63 and a limiting plate 64. All set up the support groove 11 that supplies bracing piece 61 to put into along vertical direction on the lateral wall of the adjacent guard plate 2 of every montant 1, the one end of bracing piece 61 is articulated with the upper end inside wall in support groove 11, and bracing piece 61 can rotate 90 degrees to horizontality. The fixing plate 63 and the limiting plate 64 are hinged to two ends of the fixing rod 62 respectively, the fixing bolt 65 is arranged on the fixing plate 63 and the limiting plate 64 in a penetrating mode, the first supporting hole 611 in threaded connection with the fixing bolt 65 is formed in the side wall, clinging to the bottom wall of the supporting groove 11, of the supporting rod 61, and the second supporting hole 12 in threaded connection with the fixing bolt 65 is formed in the bottom wall of the supporting groove 11. When the supporting rod 61 rotates 90 degrees to a horizontal state, the limiting plate 64 is firstly attached to the bottom wall of the supporting groove 11, then the fixing bolt 65 on the limiting plate 64 is screwed into the second supporting hole 12, then the fixing plate 63 is attached to the outer side wall of the supporting rod 61, and the fixing bolt 65 on the fixing plate 63 is screwed into the second supporting hole 12 on the supporting rod 61, so that the fixing rod 62 is installed between the supporting rod 61 and the supporting groove 11, the fixing rod 62 can provide supporting force for the supporting rod 61, and the supporting rod 61 can be always kept in a horizontal state.

Referring to fig. 2, 3 and 4, the end of the movable end of each support rod 61 is hinged to a rectangular support plate 66, and the support plate 66 can rotate 180 degrees relative to the support rod 61. The support plate 66 is provided with a connection hole 661 into which the mounting post 531 is inserted. Rotating the support rod 61 out of the support groove 11, installing the fixed rod 62 to enable the support rod 61 to be always kept in a horizontal state, rotating the support plate 66 on the movable end of the support rod 61 by 180 degrees to enable one side of the support plate 66 to face the installation box 3, then rotating the accommodating hand wheel 52 by hand to enable the length of the waterproof cloth 4 extending out of the installation box 3 to be larger than that of the support rod 61, then respectively inserting the installation columns 531 on the installation plates 53 into the connection holes 661 on the two support plates 66 to enable the installation plates 53 to be tightly attached to the sides, away from the installation box 3, of the two support plates 66, then rotating the accommodating hand wheel 52 by hand to tighten the waterproof cloth 4, limiting the installation columns 531 on the installation plates 53 from being separated from the connection holes, and therefore, the waterproof cloth 4 is spread, and people can enter the lower side of the waterproof cloth 4 to avoid rain; in addition, when sunshine is comparatively violent, also can strut tarpaulin 4 for shelter from sunshine, the workman can be under tarpaulin 4 and be under construction, improves workman's efficiency of construction.

Referring to fig. 4, a first magnet 662 is embedded in a side wall of the supporting plate 66, and a second magnet 612 that is attracted to the first magnet 662 is embedded in a movable end portion of the supporting rod 61. When the supporting rod 61 needs to be placed back into the supporting groove 11, the first magnet 662 on the supporting plate 66 and the second magnet 612 on the supporting rod 61 attract each other, so that the supporting plate 66 is prevented from being turned over at will, and the supporting rod 61 can be conveniently and smoothly placed into the supporting groove 11.

Referring to fig. 1 and 4, two fixing holes 13 in threaded connection with the fixing bolt 65 are horizontally spaced on the side wall of the vertical rod 1 on the same side as the opening of the supporting slot 11, and the two fixing holes 13 are respectively located on two sides of the supporting slot 11. When the bracing piece 61 is required to be put into the supporting groove 11, the two fixing bolts 65 are screwed out, so that the fixing rod 62 is detached, then the bracing piece 61 is rotated by 90 degrees, so that the bracing piece 61 is accommodated in the supporting groove 11, then the fixing bolts 65 on the limiting plate 64 and the fixing plate 63 are screwed into the two fixing holes 13 respectively, so that the fixing rod 62 is installed on the outer side wall of the vertical rod 1, so that the fixing rod 62 spans the opening of the supporting groove 11, and further the accidental separation of the bracing piece 61 from the supporting groove 11 is limited.

Referring to fig. 2 and 5, the mounting box 3 is fixedly connected with a fastening ring 7 surrounding the outer side of the storage shaft 51 towards one side of the storage hand wheel 52, a connecting groove 71 is formed in one side of the fastening ring 7 away from the mounting box 3 along the circumferential direction, a limiting ring 8 used for abutting against the storage hand wheel 52 is connected in the connecting groove 71 in a sliding mode, a fastening spring 72 is fixedly connected to the bottom wall of the connecting groove 71 along the circumferential direction, and the fastening spring 72 and the fastening ring 7 are arranged coaxially. One end that fastening spring 72 kept away from the spread groove 71 diapire hugs closely with spacing ring 8 towards one side of mounting box 3, and the lateral wall fixedly connected with stopper 81 of spacing ring 8, the lateral wall of tighrening ring 7 is seted up along the direction of keeping away from mounting box 3 and is supplied stopper 81 card to go into and gliding spacing hole 73, and locating hole 74 has been seted up along circumference to the lateral wall of tighrening ring 7, and the one end of locating hole 74 and the one end intercommunication that spacing hole 73 is close to mounting box 3. The fastening spring 72 pushes the limit ring 8 out of the connecting groove 71, so that one end of the limit ring 8, which is far away from the fastening spring 72, abuts against the accommodating hand wheel 52, and the accommodating hand wheel 52 is limited from rotating accidentally; in addition, when the hand wheel 52 needs to be rotated and stored, the limiting ring 8 can be pressed into the connecting groove 71, so that the limiting block 81 slides to one end of the limiting hole 73 far away from the hand wheel 52, then the limiting ring 8 is rotated, the limiting block 81 is clamped into the positioning hole 74, the limiting ring 8 is not abutted to tightly store the hand wheel 52, and the hand wheel 52 is convenient to store.

The implementation principle of the building construction protective guard of the embodiment of the application is as follows: when the outside rains suddenly, the worker firstly unscrews the fixing bolt 65 from the fixing hole 13, then rotates the support rod 61 out of the support groove 11, screws the fixing bolt 65 on the limiting plate 64 into the second support hole 12, screws the fixing bolt 65 on the fixing plate 63 into the first support hole 611, then rotates the support plate 66 on the support rod 61 by 180 degrees, rotates the accommodating hand wheel 52 by hand, so that the waterproof cloth 4 extends out of the mounting box 3, then inserts the mounting column 531 on the mounting plate 53 into the connecting hole 661 on the support plate 66, thereby opening the waterproof cloth 4, and the worker can temporarily keep out the rain under the waterproof cloth 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.