CN113494207B - Safety barrier for construction - Google Patents
Safety barrier for construction Download PDFInfo
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- CN113494207B CN113494207B CN202110781196.2A CN202110781196A CN113494207B CN 113494207 B CN113494207 B CN 113494207B CN 202110781196 A CN202110781196 A CN 202110781196A CN 113494207 B CN113494207 B CN 113494207B
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- kidney
- vertical
- shaped groove
- sleeve
- concave
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1417—Post-and-rail fences, e.g. without vertical cross-members with vertical cross-members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
- E04G21/3228—Folding railings for flat roof edge, e.g. to hide the railings from view when not in use
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/20—Posts therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H17/00—Fencing, e.g. fences, enclosures, corrals
- E04H17/14—Fences constructed of rigid elements, e.g. with additional wire fillings or with posts
- E04H17/1413—Post-and-rail fences, e.g. without vertical cross-members
- E04H17/1447—Details of connections between rails and posts
- E04H17/1448—Adjustable, angled or hinged connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
The invention discloses a safety guardrail for building construction, which comprises two end vertical parts and at least two groups of scissor frames, wherein the left end and the right end of each scissor frame are respectively connected with the two end vertical parts, the upper and lower corresponding hinge points I are connected with the same middle vertical part I, the upper and lower corresponding hinge points II are connected with the same middle vertical part II, the vertical parts at the two end parts are respectively provided with a concave sleeve and a base part for supporting, the front and rear side surfaces of the vertical parts at the two end parts are respectively provided with a vertical waist-shaped groove I, the concave sleeve is in a vertical state and sleeved at the vertical part at the end part, the inner wall of the concave sleeve is provided with an inserting column matched with the waist-shaped groove I, when the inserting column props against the top end of the first kidney-shaped groove, the concave sleeves can rotate around the axis of the inserting column to be in a horizontal state, and a first fastening piece is arranged between the end part of each two horizontal concave sleeves, which is close to each other, and the middle vertical part I/the middle vertical part II in the middle.
Description
Technical Field
The invention relates to the field of safety guardrails, in particular to a safety guardrail for building construction.
Background
The safety barrier is a safety barrier which separates the operation area and is used for reminding passing personnel, so that non-working personnel can not enter the operation area, and safety accidents are avoided. Safety barriers are also a tool that is often required in construction. Generally, the safety guardrail can be divided into two types, one type is only used for separating areas and can be used for reminding a user to adopt a direct placement mode, and the other type of safety guardrail also needs to play a protection role, such as a safety guardrail at the upper edge of a stair, is used as a temporary handrail and needs to be fixed with the ground. After construction is finished, most safety guardrails need to be dismantled, so that the directly placed safety guardrails can be directly transferred away. But the safety barrier is inconvenient to transfer because of large volume.
Disclosure of Invention
The invention aims to provide a safety guardrail for building construction, which is assisted to be folded and unfolded by a shear frame and has the advantage of convenient movement.
The technical purpose of the invention is realized by the following technical scheme:
a safety guardrail for building construction comprises two end vertical parts and at least two groups of scissor frames which are deformed in the left and right directions, wherein the left and right ends of each scissor frame are respectively connected with the two end vertical parts, a hinge point at the middle position of each scissor frame part between the two end vertical parts is a first hinge point, a hinge point at the lower part of each scissor frame part is a second hinge point, the vertically corresponding first hinge points in all the scissor frames are connected with the same middle vertical part I, the top surface of the middle vertical part I is lower than or equal to the top surfaces of the two end vertical parts, the vertically corresponding second hinge points are connected with the same middle vertical part II, the two end vertical parts are respectively provided with a concave sleeve and a base part for supporting, and the front side surface and the rear side surface of each end vertical part are respectively provided with a vertical waist-shaped groove I, the concave sleeve is in a vertical state and sleeved in the vertical part of the end part, the inner wall of the concave sleeve is provided with an inserting column matched with the first kidney-shaped groove, when the inserting column abuts against the top end of the first kidney-shaped groove, the concave sleeve can rotate around the axis of the inserting column to be in a horizontal state, and a first fastening piece is arranged between the end part, close to each other, of the two concave sleeves in the horizontal state and the middle vertical part I/middle vertical part II in the middle.
By adopting the technical scheme, the whole safety guardrail is driven to be folded and unfolded by the scissor rack, when the safety guardrail is folded, the two end vertical parts, the middle vertical part I and the middle vertical part II are mutually abutted, the length in the left and right directions is reduced, the maximum unfolding position of the safety guardrail is conveniently determined, the safety guardrail is convenient to carry, package and store, meanwhile, the vertical part II can rise along with the unfolding deformation of the scissor rack, a concave sleeve is introduced, when the scissor rack is in a completely folded state, the top surface of the middle vertical part II is lower than that of the middle vertical part I, the height difference between the middle vertical part II and the middle vertical part I is set according to the length of the concave sleeve, when the scissor rack is unfolded to the state that the vertical part II is inserted into the concave sleeve in the horizontal state and is abutted against the inner wall of the concave sleeve, the scissor rack reaches the maximum unfolding position, so that the maximum unfolding position of the safety guardrail can be conveniently determined, meanwhile, the concave sleeve is added, so that the unfolded safety barrier is more stable.
Preferably, the base part comprises a connecting seat, a sliding sleeve and two supporting bars, the two end vertical parts comprise an upper sliding part with larger external dimension and a lower furling part with smaller external dimension, the first kidney-shaped groove is arranged on the sliding part, the connecting seat is fixedly connected with the bottom of the furling part, the front side and the rear side of the connecting seat are in the same outward inclined state, the sliding sleeve is connected with the furling part in a sliding way, the two supporting bars are respectively hinged with the bottoms of the front part and the rear part of the sliding sleeve, when the bottom of the connecting sleeve and the sliding part are propped against, the two supporting strips are positioned at the furled part and are in a vertical state under the action of self weight, when the connecting sleeve is located at the lower side position, the two supporting bars are respectively attached to the front side face and the rear side face of the connecting seat, and the front side face and the rear side face of the connecting seat are respectively provided with a second fastening piece for fixing the supporting bars.
By adopting the technical scheme, the base part can be folded, and the size is reduced.
Preferably, the bottom of the outer side face of the sliding sleeve is further hinged with an auxiliary supporting strip, the outer side face of the connecting seat is also in an outward inclined state, the slope is the same as the front side face and the rear side face, and the outer side face of the connecting seat is also provided with a second fastening piece.
By adopting the technical scheme, the support is more stable through the auxiliary branch.
Preferably, when the concave sleeve is in a vertical state, the connecting sleeve, the two support bars and the auxiliary support bar in the vertical state can be sleeved in the concave sleeve to play a role in limiting the connecting sleeve, the support bars and the auxiliary support bar, a second kidney-shaped groove is formed in the lower portion of the concave sleeve corresponding to the first kidney-shaped groove, the top end of the second kidney-shaped groove is partially overlapped with the bottom end of the first kidney-shaped groove, and the inserting column is slidably connected to the second kidney-shaped groove.
By adopting the technical scheme, when the concave sleeve is in a vertical state, the inserting column is matched with the top end of the second kidney-shaped groove and the bottom end of the first kidney-shaped groove at the same time, the concave sleeve moves upwards, the inserting column is fixed at the beginning, along with the upward movement of the concave sleeve, after the bottom end of the second kidney-shaped groove is abutted to the inserting column, the inserting column and the concave sleeve move upwards together, when the inserting column is matched with the lower end of the second kidney-shaped groove and the top end of the first kidney-shaped groove at the same time, the concave sleeve moves to a limit position, and then the concave sleeve is rotated to be in a horizontal state.
Preferably, the width of the second kidney-shaped groove is smaller than that of the first kidney-shaped groove, the second kidney-shaped groove penetrates through the concave sleeve from front to back, a first bolt capable of fixing the second kidney-shaped groove is further arranged on the inserting column, and the first bolt penetrates through the second kidney-shaped groove and is in threaded connection with the inserting column.
By adopting the technical scheme, the first bolt is unscrewed, the inserting column can slide in the second kidney-shaped groove, and the first bolt is screwed down, so that the sliding of the inserting column and the second kidney-shaped groove can be limited.
Preferably, when the connecting sleeve and the bottom of the sliding part abut against each other, the two supporting strips and the auxiliary supporting strip are positioned at the furled part and are in a vertical state under the action of self weight, and the bottoms of the two supporting strips and the auxiliary supporting strip abut against the top surface of the connecting seat.
By adopting the technical scheme, the concave sleeve is sleeved into the connecting sleeve, the two supporting bars and the auxiliary supporting bars in the vertical state, so that when the limiting device is used, the up-down movement of the connecting sleeve, the two supporting bars and the auxiliary supporting bars is also limited.
Preferably, the second fastening piece is a second bolt, the front side face, the rear side face and the outer side face of the connecting seat are provided with matched threaded holes, the supporting strip and the auxiliary supporting strip are provided with matched slots, and the lower ends of the slots penetrate through the supporting strip and the auxiliary supporting strip.
By adopting the technical scheme, the second three fastening pieces are unscrewed, the two support bars and the auxiliary support bars are shifted to the outer side, the sliding sleeve moves downwards, the slots of the two support bars and the auxiliary support bars are matched with the corresponding second fastening pieces, and then the second fastening pieces are screwed down.
Preferably, the left end and the right end of the scissor rack are the same, the middle position of the scissor rack is a middle vertical part II, the first fastening piece is a bolt V and a nut, a through hole matched with the bolt is formed in the middle vertical part II, and a semicircular hole matched with the bolt is formed in the end part, close to each other, of the two horizontal concave sleeves.
By adopting the technical scheme, after the safety guardrail is completely unfolded, the first fastening piece can penetrate through the semicircular holes of the two concave sleeves, and the through hole of the middle vertical part II can limit the rotation of the two concave sleeves around the inserting column.
Preferably, for the uppermost scissors frame, the inner side surfaces of the two hinge strips corresponding to the hinge point three in the middle position of the uppermost scissors frame are respectively provided with a connecting lug, and when the scissors frame is completely folded, the two connecting lugs are aligned with the through holes.
By adopting the technical scheme, the first fastener and the second middle vertical part and the two connecting lugs in the middle can be matched to limit the unfolding of the scissor holder, so that the guardrail is kept folded.
Drawings
FIG. 1 is a schematic view of a barrier of an embodiment in a collapsed condition;
FIG. 2 is a schematic view of the scissor frame of the embodiment with the fence extended;
FIG. 3 is an enlarged view of a part of embodiment A;
FIG. 4 is an enlarged view of a part of embodiment B;
FIG. 5 is a schematic view of an embodiment of an end web arrangement;
fig. 6 is a schematic view of the connection between the middle vertical part II and the scissor frame in the middle position of the embodiment;
FIG. 7 is an enlarged view of a part of example C;
FIG. 8 is a schematic view of the guardrail of the embodiment in a deployed state.
Reference numerals: 1. an end vertical portion; 11. an end connecting plate; 111. blind holes; 112. a sliding plate; 113. collecting the plate; 12. connecting blocks; 13. a first kidney-shaped groove; 2. a scissor rack; 21. a first hinge point; 22. a hinge point II; 23. a hinge point III; 231. a fourth bolt; 232. a step hole II; 24. a hinge point IV; 25. connecting lugs; 3. a middle vertical part I; 31. a first connecting plate; 4. the middle vertical part II; 41. a second connecting plate; 411. a third bolt; 412. a first step hole; 43. perforating; 5. a base portion; 51. a connecting seat; 511. a second bolt; 52. a sliding sleeve; 53. a supporting strip; 531. a slot; 54. auxiliary branch bars; 6. a concave sleeve; 61. inserting a column; 611. a first bolt; 62. a second kidney-shaped groove; 63. a semicircular hole; 7. a first fastener; 71. a fifth bolt; 72. and a nut.
Detailed Description
The following description is only a preferred embodiment of the present invention, and the protection scope is not limited to the embodiment, and any technical solution that falls under the idea of the present invention should fall within the protection scope of the present invention. It should also be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention.
As shown in fig. 1 and 5, the safety barrier for building construction includes two end vertical portions 1, and at least two groups of scissor holders 2 deformed in the left-right direction, and left and right ends of all the scissor holders 2 are respectively connected to the two end vertical portions 1. Since the number of the scissor holders 2 has been set to two or more, both ends of the scissor holders 2 can be set to one hinge point (the hinge point is set to four hinge points 24), so that for the end vertical portion 1, which is to connect at least two hinge points four 24, it can be kept vertical. The end vertical part 1 comprises a front end connecting plate 11, a rear end connecting plate 11 and a plurality of connecting blocks 12. The fourth hinge point 24 is provided with a connecting column, and the inner side surfaces of the two end connecting plates 11 are provided with blind holes 111 matched with the connecting column. The connecting block 12 is placed between the tops of the two end connecting plates 11, and is welded and fixed with the two connecting plates.
As shown in fig. 2 and 3, for convenience of the following description, the present embodiment takes two groups of scissor holders 2 as an example. For the part of the scissor frame 2 between the two end vertical parts 1, a hinge point at the middle position is set as a hinge point I21, a hinge point at the lower part is set as a hinge point II 22, and a hinge point at the upper part is set as a hinge point III 23. In this embodiment, the number of the first hinge points 21 is four, and the number of the second hinge points 22 and the third hinge points is five
In all the scissor holders 2, the same middle vertical portion two 4 is connected to the hinge point two 22 which vertically corresponds to each other, the middle vertical portion two 4 comprises two connecting plates two 41, step holes one 412 and threaded holes are formed in the positions, corresponding to the hinge point two 22, of the two connecting plates two 41, through holes are formed in the positions, corresponding to the hinge point two 22, of the hinge bars of the scissor holders 2, and the two connecting plates one 31 are connected to the scissor holders 2 through bolts three 411 when the scissor holders 2 are assembled.
For the third hinge point 23, for the ends of the two corresponding hinge bars at the position of the scissor frame 2, the end of one hinge bar is provided with a second stepped hole 232, the end of the other hinge bar is provided with a threaded hole, the hinge connection is realized through a fourth bolt 231, and the fourth bolt 231 does not affect the installation of the second connecting plate 41 through the second stepped hole 232.
The same middle vertical part I3 is connected to the hinge point I21 which corresponds to the upper part and the lower part, and the top surface of the middle vertical part I3 is lower than or equal to the top surfaces of the two end vertical parts 1, preferably, the two end vertical parts are equal. The middle vertical part I3 comprises two connecting plates I31, and the two connecting plates I31 refer to the connection mode of the two connecting plates II 41 and the scissor holder 2. Therefore, the scissor rack 2 has a completely folded state as shown in fig. 1, namely the two end vertical parts 1, the middle vertical part I3 and the middle vertical part II 4 are mutually butted, so that the folded size of the safety guardrail can be conveniently determined.
As shown in fig. 2 and 4, the two end vertical portions 1 are further provided with a base portion 5 for supporting, and the base portion 5 includes a connecting seat 51, a sliding sleeve 52, and two supporting bars 53. The end vertical part 1 includes an upper sliding part with a larger external dimension and a lower furling part with a smaller external dimension, and corresponds to the end connecting plate 11, that is, the end connecting plate 11 includes an upper sliding plate 112 with a larger external dimension and a lower furling plate 113 with a smaller external dimension. The bottom ends of the two furling plates 113 of the end vertical part 1 are welded and fixed with the connecting seat 51, and the two end connecting plates 11 are kept stable by matching with the connecting block 12.
The outer side surface, the front side surface and the rear side surface of the connecting seat 51 are in the same outward inclined state (i.e. the slope is the same), and the sliding sleeve 52 is slidably connected to the folded part. The two supporting bars 53 are respectively hinged with the bottoms of the front part and the rear part of the sliding sleeve 52, in addition, the bottom of the outer side surface of the sliding sleeve 52 is also hinged with an auxiliary supporting bar 54, and the two supporting bars 53 and the auxiliary supporting bar 54 have the same length. Thus the whole joint has two states: in the first state, when the sliding sleeve 52 and the bottom of the sliding part are abutted against each other, the two supporting bars 53 and the auxiliary supporting bars 54 are positioned at the furled part and are in a vertical state under the action of self weight, and meanwhile, the bottoms of the two supporting bars 53 and the auxiliary supporting bars 54 are abutted against the top surface of the connecting seat 51; and in the second state, the connecting sleeve is positioned at the lower side, the two supporting bars 53 are respectively attached to the front side surface and the rear side surface of the connecting seat 51, and the auxiliary supporting bar 54 is attached to the outer side surface of the connecting seat 51.
The lateral surface, the front and back lateral surfaces of connecting seat 51 all are equipped with fastener two of fixed support bar 53, and fastener two is bolt two 511, and connecting seat 51's front and back lateral surface, lateral surface all are equipped with the complex screw hole. The supporting bar 53 and the auxiliary supporting bar 54 are provided with a matching slot 531, and the lower end of the slot 531 penetrates through the supporting bar 53 and the auxiliary supporting bar 54. When the connecting part is converted from the first conversion state to the second conversion state, the three second fastening pieces are unscrewed firstly, the two supporting strips 53 and the auxiliary supporting strips 54 are shifted outwards, the sliding sleeve 52 moves downwards, meanwhile, the inserting grooves 531 of the two supporting strips 53 and the auxiliary supporting strips 54 are matched with the corresponding second fastening pieces, and then the second fastening pieces are screwed down, so that the connecting part is kept in the second state.
Referring back to fig. 5, the two end vertical portions 1 are also provided with concave sleeves 6, the concave sleeves 6 are in a vertical state and are sleeved on the end vertical portions 1, that is, the inner walls of the concave sleeves 6 are attached to the end vertical portions 1. The front side and the rear side of the two end vertical parts 1 are respectively provided with a vertical kidney-shaped groove 13, and the kidney-shaped grooves 13 are arranged on the sliding part. The inner wall of the concave sleeve 6 is provided with an inserting column 61 matched with the first kidney-shaped groove 13, so that when the inserting column 61 abuts against the top end of the first kidney-shaped groove 13, the concave sleeve 6 can rotate around the axis of the inserting column 61 to be in a horizontal state, and the outer edge of the end vertical part 1 is rounded for facilitating the rotation of the concave sleeve 6. When the concave sleeve 6 is in a horizontal state, the horizontal inner wall of the concave sleeve 6 is abutted against the top surface of the end vertical part 1, and the top surface of the middle vertical part 3 is lower than or equal to the top surfaces of the two end vertical parts 1, preferably, the two parts are equal, namely, at the moment, the end vertical part 1 and the middle vertical part 3 both play a role in supporting the horizontal concave sleeve 6.
When the connecting part is in the first state, the concave sleeve 6 can also be sleeved in the connecting sleeve, the two supporting bars 53 and the auxiliary supporting bars 54 in the vertical state, and the function of limiting the connecting sleeve, the supporting bars 53 and the auxiliary supporting bars 54 is achieved. However, when the concave sleeve 6 is rotated to be horizontal, the bottom end of the concave sleeve 6 originally exceeds the corresponding end vertical part 1. In order to solve the problem, a second kidney-shaped groove 62 is arranged on the lower portion of the concave sleeve 6 corresponding to the first kidney-shaped groove 13, the top end of the second kidney-shaped groove 62 is partially overlapped with the bottom end of the first kidney-shaped groove 13, and the inserting column 61 is connected to the second kidney-shaped groove 62 in a sliding mode. The sliding connection mode is as follows: the width of the second kidney-shaped groove 62 is smaller than that of the first kidney-shaped groove 13, the second kidney-shaped groove 62 penetrates through the concave sleeve 6 from front to back, a first bolt 611 capable of fixing the second kidney-shaped groove is further arranged on the inserting column 61, the first bolt 611 penetrates through the second kidney-shaped groove 62 and is in threaded connection with the inserting column 61, namely the first bolt 611 is unscrewed, and the inserting column 61 can slide in the second kidney-shaped groove 62.
Thus, when the concave sleeve 6 is in a vertical state, the inserting column 61 is matched with the top end of the second kidney-shaped groove 62 and the bottom end of the first kidney-shaped groove 13 at the same time, the concave sleeve 6 moves upwards, the inserting column 61 and the concave sleeve 6 move upwards together with the upward movement of the concave sleeve 6 after the bottom end of the second kidney-shaped groove 62 is abutted against the inserting column 61, and after the inserting column 61 is matched with the lower end of the second kidney-shaped groove 62 and the top end of the first kidney-shaped groove 13 at the same time, the concave sleeve 6 moves upwards to a limit position and then rotates the concave sleeve 6 to be in a horizontal state.
The concave sleeve 6 can conveniently determine the maximum unfolding position of the scissor rack 2 in a horizontal state, so that the size of the safety fence in use is determined. It can be seen that vertical part two rises as scissor holder 2 is extended and deformed, and therefore it can be set: when the scissor rack 2 is in a completely furled state, the top surface of the middle vertical part two 4 is lower than the middle vertical part one 3, the height difference between the two parts is set according to the length of the concave sleeve 6, and when the scissor rack 2 is unfolded until the vertical part two is inserted into the horizontal concave sleeve 6 and is propped against the inner wall of the horizontal concave sleeve, the scissor rack 2 reaches the maximum unfolding position.
As shown in fig. 6 and 7, a first fastening piece 7 is arranged between the end part of each of the two horizontal concave sleeves 6 close to each other and the middle vertical part I3/the middle vertical part II 4 in the middle. Since it is mentioned above that "both ends of the scissor frame 2 are set as a hinge point", that is, both ends of the scissor frame 2 are symmetrical, the middle position of the scissor frame 2 can be determined as the middle vertical part two 4 according to the geometrical relationship. The first fastening piece 7 is a bolt five 71 and a nut 72, the upper parts of the two connecting plates two 41 of the middle vertical part two 4 are separately provided with through holes 43 matched with the bolt, and the mutually adjacent ends of the two horizontal concave sleeves 6 are provided with semicircular holes 63 matched with the bolt.
For the uppermost scissor rack 2, the inner side surfaces of the two hinge strips corresponding to the hinge point three 23 at the middle position are respectively provided with a connecting lug 25 with a hole, and when the scissor rack 2 is completely folded, the two connecting lugs 25 are aligned with the through holes 43.
Briefly describing the working principle of the safety barrier, the safety barrier has two states of folding and unfolding:
when folded, as shown in fig. 1, the scissor frame 2 is in the above-mentioned fully folded state, while the base portion 5 is in the above-mentioned state one, while the concave sleeve 6 is in the vertical state, limiting the base portion 5. In addition, the first fastener 7 can be matched with the middle vertical part 4 and the two connecting lugs 25 at the middle position to limit the unfolding of the scissor frame 2, so that the guardrail can be kept folded.
When extended, as shown in fig. 8, the scissor frame 2 is in the maximum extended position, the base portion 5 is in the second state, and the concave housing 6 is horizontal. Briefly describing the process of folding and unfolding the safety guardrail, firstly, two concave sleeves 6 are moved upwards to expose a base part 5, according to the process, a connecting part is converted from a first rotating state to a second rotating state, then a first fastening piece 7 is detached, a scissor frame 2 is unfolded properly to enable one concave sleeve 6 to rotate to a horizontal state, one concave sleeve 6 is rotated to the horizontal state, then a first bolt 611 of an insert column 61 on the concave sleeve 6 is screwed, the left and right movement of the concave sleeve 6 is limited, then the scissor frame 2 is unfolded continuously to a maximum unfolding position, the other concave sleeve 6 is rotated to the horizontal state, then a first bolt 611 of the insert column 61 on the concave sleeve 6 is screwed, and finally, the two concave sleeves 6 and a middle vertical part 4 of the middle position are further fixed through the first fastening piece 7.
Claims (9)
1. The safety guardrail for building construction is characterized by comprising two end vertical parts (1) and at least two groups of same scissor frames (2) which are deformed in the left-right direction, the left end and the right end of each scissor frame (2) are respectively connected with the two end vertical parts (1), a hinge point at the middle position of each scissor frame (2) between the two end vertical parts (1) is set as a hinge point I (21), a hinge point II (22) at the lower part is set as a hinge point II (22), a hinge point III (23) is set as a point on the upper part, the hinge point I (21) corresponding to each other up and down in each scissor frame (2) is connected with the same middle vertical part I (3), the top surface of the middle vertical part I (3) is lower than or flush with the top surfaces of the two end vertical parts (1), the hinge point II (22) corresponding to each other up and down is connected with the same middle vertical part II (4), two still all be equipped with spill cover (6), base portion (5) of supporting role on the vertical portion of tip (1), two the front and back side of the vertical portion of tip (1) all is equipped with vertical kidney slot (13), spill cover (6) are vertical state to overlap in the vertical portion of tip (1), the inner wall of spill cover (6) is equipped with post (61) of inserting of cooperation kidney slot (13), works as when inserting post (61) and support the top of kidney slot (13), spill cover (6) can rotate round the axis of inserting post (61) and be the horizontality, and two spill covers that are the horizontality (6) tip that is close to each other and the middle vertical portion (3) of intermediate position/middle vertical portion (4) between be equipped with fastener (7).
2. The safety fence for building construction according to claim 1, wherein the base part (5) comprises a connecting seat (51), a sliding sleeve (52) and two supporting bars (53), the two end vertical parts (1) comprise a sliding part with a larger external dimension at the upper part and a furled part with a smaller external dimension at the lower part, the first kidney-shaped groove (13) is arranged at the sliding part, the connecting seat (51) is fixedly connected with the bottom of the furled part, the front side and the rear side of the connecting seat (51) are in the same outward inclined state, the sliding sleeve (52) is slidably connected with the furled part, the two supporting bars (53) are respectively hinged with the bottom of the front part and the bottom of the sliding sleeve (52), and when the bottoms of the sliding sleeve (52) and the sliding part are propped against, the two supporting bars (53) are in the furled part, and be vertical state under the dead weight effect, work as when slip cap (52) are in the downside position, two support bar (53) are the side laminating around with connecting seat (51) respectively, just the side all is equipped with fastener two of fixed support bar (53) around connecting seat (51).
3. The safety fence for building construction according to claim 2, characterized in that the bottom of the outer side of the sliding sleeve (52) is further hinged with an auxiliary branch (54), the outer side of the connecting seat (51) is also in an outward inclined state, the slope is the same as the front and rear sides, and the outer side of the connecting seat (51) is also provided with a second fastening piece.
4. The safety fence for building construction according to claim 3, characterized in that when the concave sleeve (6) is in a vertical state, the concave sleeve can be sleeved with the connecting sleeve, two supporting bars (53) and the auxiliary supporting bars (54) in the vertical state to limit the connecting sleeve, the supporting bars (53) and the auxiliary supporting bars (54), a second kidney-shaped groove (62) is arranged at the lower part of the concave sleeve (6) corresponding to the first kidney-shaped groove (13), the top end of the second kidney-shaped groove (62) is overlapped with the bottom end of the first kidney-shaped groove (13), and the inserting column (61) is slidably connected with the second kidney-shaped groove (62).
5. The safety fence for building construction according to claim 4, characterized in that the width of the second kidney-shaped groove (62) is smaller than that of the first kidney-shaped groove (13), the second kidney-shaped groove (62) penetrates the concave sleeve (6) in the front and back, the first bolt (611) capable of fixing the second kidney-shaped groove is further arranged on the insert column (61), and the first bolt (611) penetrates through the second kidney-shaped groove (62) and is in threaded connection with the insert column (61).
6. The safety fence for building construction according to claim 4, characterized in that when the sliding sleeve (52) and the bottom of the sliding part abut against each other, the two support bars (53) and the auxiliary support bars (54) are in the folded part and are in the vertical state under the action of self-weight, the bottom of the two support bars (53) and the auxiliary support bars (54) abut against the top surface of the connecting seat (51).
7. The safety fence for building construction according to claim 3, wherein the second fastening member is a second bolt (511), the front side surface, the rear side surface and the outer side surface of the connecting seat (51) are respectively provided with a matched threaded hole, the supporting bar (53) and the auxiliary supporting bar (54) are respectively provided with a matched slot (531), and the lower end of the slot (531) penetrates through the supporting bar (53) and the auxiliary supporting bar (54).
8. The safety fence for building construction according to claim 1, characterized in that the left and right ends of the scissor frame (2) are the same, correspondingly, the middle position of the scissor frame (2) is a middle vertical part II (4), the first fastening member (7) is a bolt II (71) and a nut (72), a through hole (43) matched with the bolt is formed in the middle vertical part II (4), and a semicircular hole (63) matched with the bolt is formed in the end part, close to each other, of the two horizontal concave sleeves (6).
9. A safety guard for building construction according to claim 8, characterized in that for the uppermost scissor frame (2), the inner side surfaces of the two corresponding hinge bars of the middle hinge point three (23) are provided with connecting lugs (25), and when the scissor frame (2) is completely folded, the two connecting lugs (25) are aligned with the through holes (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781196.2A CN113494207B (en) | 2021-07-10 | 2021-07-10 | Safety barrier for construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110781196.2A CN113494207B (en) | 2021-07-10 | 2021-07-10 | Safety barrier for construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113494207A CN113494207A (en) | 2021-10-12 |
| CN113494207B true CN113494207B (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110781196.2A Active CN113494207B (en) | 2021-07-10 | 2021-07-10 | Safety barrier for construction |
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| CN (1) | CN113494207B (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965201B (en) * | 2017-12-20 | 2024-02-13 | 国网江苏省电力公司检修分公司 | Controllable safety purse net with locking function |
| CN212535309U (en) * | 2020-05-08 | 2021-02-12 | 四川先舟建设工程有限公司 | Portable foundation pit guardrail |
| CN213391495U (en) * | 2020-07-22 | 2021-06-08 | 嘉兴恒邦保安服务有限公司 | Temporary security assembly isolation fence |
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| CN113494207A (en) | 2021-10-12 |
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