A foldable cap beam construction platform

Abstract

The present invention discloses a foldable cap beam construction platform, which is arranged on the distribution beams extending from both sides of the cap beam. The construction platform includes a platform assembly, a guardrail assembly and a first connecting member; the platform assembly is detachably mounted on the top of the distribution beam; the first connecting member includes a rotating member and a fastening assembly; the rotating member simultaneously connects the platform assembly and the guardrail assembly, and the guardrail assembly rotates relative to the platform assembly through the rotating member; the fastening assembly is arranged on the platform assembly or the guardrail assembly. When the guardrail assembly is rotated to the first position, the fastening assembly can be locked or unlocked; when the fastening assembly is locked, the rotation of the guardrail assembly toward the platform assembly is restricted; when the fastening assembly is unlocked, the guardrail assembly can be attached to or separated from the platform assembly by rotation; when the guardrail assembly is in the first position, the angle between the guardrail assembly and the platform assembly is 80° to 90°. The construction platform is connected to the guardrail in a foldable manner, so as to achieve quick disassembly and assembly without losing parts.

Description

Technical Field

[0001] The invention relates to the technical field of bridge construction, and in particular to a foldable cap beam construction platform. Background Art

[0002] During the construction of high piers of bridges, the erection of the cap beam construction work platform is a construction difficulty. How to ensure the safety of workers working at high altitudes and how to ensure that the construction quality of the cap beam meets the requirements is the top priority of the construction of high piers of bridges. In traditional cap beam construction, the full-frame scaffolding method is often used, that is, a full-frame scaffolding is erected at the bridge location, the bridge body concrete is poured on the scaffolding, and the formwork and scaffolding are removed after the concrete reaches the strength. However, the scaffolding formwork used in the full-frame scaffolding method consumes a large amount of material and takes a long time to complete, and it has great limitations for mountain bridges and high piers. Therefore, the assembled cap beam construction platform came into being and is widely used in bridge construction.

[0003] The traditional cap beam construction platform is composed of a platform, guardrails and other components. The platform frame and guardrails are assembled with bolts. Whether in the erection stage before construction or the disassembly stage after construction, the disassembly and assembly efficiency of the traditional cap beam construction platform is low, and the connecting parts are scattered and fragmented, which is easy to lose and affect subsequent use. Summary of the invention

[0004] The main technical problem to be solved by the present invention is to provide a cap beam construction platform, which realizes a folding connection between the platform and the guardrail by means of a movable connection, so as to achieve quick disassembly and assembly without losing parts.

[0005] In order to solve the above technical problems, the present invention provides a foldable cap beam construction platform, which is characterized by comprising a platform component, a guardrail component and a first connecting component;

[0006] The platform assembly is detachably mounted on the top of the distribution beam extending from both sides of the cap beam;

[0007] The first connecting assembly includes a rotating member and a fastening assembly;

[0008] The guardrail assembly is rotatably connected to the platform assembly via the rotating member;

[0009] The fastening assembly is arranged on the platform assembly or the guardrail assembly; when the guardrail assembly is in the first position, the fastening assembly can be locked or unlocked; when the fastening assembly is locked, the rotation of the guardrail assembly relative to the platform assembly is restricted; when the fastening assembly is in the unlocked state, the guardrail assembly can rotate relative to the platform assembly to fit or separate from the platform assembly;

[0010] When the guardrail assembly is in the first position, the angle between the guardrail assembly and the platform assembly is 80° to 90°.

[0011] In a preferred embodiment, the guardrail assembly includes a first guardrail, a second guardrail, and a second connecting assembly;

[0012] The first guardrail and the second guardrail are movably connected via the second connecting assembly so that the guardrail assembly can be contracted or extended in the height direction.

[0013] In a preferred embodiment, the rotating member includes at least one connecting plate and a first pin; the first pin is directly or indirectly connected to the platform assembly;

[0014] The connecting plate is rotatably connected to the first pin shaft, and one end of the connecting plate away from the first pin shaft is fixedly connected to the surface of the guardrail assembly.

[0015] In a preferred embodiment, the platform assembly is provided with a first strip at one side thereof that is rotatably connected to the guardrail assembly; the guardrail assembly is provided with a second strip at the bottom;

[0016] When the guardrail assembly is at the first position, the first strip is in contact with the second strip; when the guardrail assembly rotates from the first position toward the direction approaching the platform assembly, the second strip leaves the first strip.

[0017] In a preferred embodiment, when the fastening assembly is locked, the first strip and the second strip are fastened from both sides in the thickness direction.

[0018] In a preferred embodiment, the first strip is provided with at least one first clearance opening along the thickness direction; the second strip is provided with at least one second clearance opening along the thickness direction; when the guardrail assembly is in the first position, the first clearance opening coincides with the second clearance opening.

[0019] In a preferred embodiment, the fastening assembly includes a fixing frame and a movable locking member; the fixing frame is fixedly connected to the first clearance opening; the movable locking member is rotationally connected or slidably connected to the fixing frame;

[0020] When the guardrail assembly is in the first position, the movable locking member can rotate or slide through the first and second clearance openings and abut against the surface of the first strip or the second strip from the side facing away from the fixing frame, and the fastening assembly is locked.

[0021] In a preferred embodiment, the movable locking member includes a screw and a nut;

[0022] The outer diameter of the nut is greater than the width of the first clearance opening and the second clearance opening;

[0023] When the fastener is locked, the screw rod is located in the first clearance opening and the second clearance opening; the nut abuts against the surface of the first strip board or the second strip board from the side facing away from the fixing frame by cooperating with the thread of the screw rod.

[0024] In a preferred embodiment, the first guardrail and the second guardrail are connected in a foldable manner;

[0025] The structure of the second connecting component is the same as that of the first connecting component; the connection relationship between the second connecting component and the first guardrail and the second guardrail is the same as the connection relationship between the first connecting component and the platform component and the guardrail component.

[0026] In a preferred embodiment, the platform assembly includes a walking board; the walking board includes a fixed board and a movable board, and the fixed board and the movable board are rotatably connected by a third connecting member; the third connecting member includes a second pin shaft, and the second pin shaft is located at the bottom of the walking board.

[0027] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0028] The foldable cap beam construction platform provided in the embodiment of the present invention, the platform assembly and the guardrail assembly are rotatably connected via the first connecting assembly, so that the platform assembly and the guardrail assembly can be quickly transformed between two states of relative fit and mutual vertical fixation, which greatly simplifies the erection process before construction and the disassembly, storage and transportation work after construction is completed.

[0029] As for the guardrail assembly, the first guardrail and the second guardrail are connected in a telescopic manner, and the support height of the guardrail assembly can be quickly adjusted, which can provide sufficient protection for construction personnel while minimizing the overall size of the construction platform after it is retracted.

[0030] No matter the construction platform is being unfolded or folded, the connecting components used are firmly connected to the construction platform body and do not fall off, thus avoiding the problem of easy loss of parts in traditional assembled construction platforms.

[0031] For the walking board, the hinge used to connect the fixed plate and the movable plate has a pin disposed at the bottom of the walking board, thereby ensuring the flatness of the walking surface. The optimization here greatly avoids the construction risk of construction workers easily kicking the pin while walking.

[0032] The construction platform connection method is simple and direct, the components are stably stressed, and the locking and unlocking operations are convenient and easy to understand, thereby improving the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the construction platform after it is unfolded in the first embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the construction platform after being folded in Embodiment 1 of the present invention;

[0035] Figure 3 is a schematic diagram of the platform assembly in Embodiment 1 of the present invention (when the movable panel is not opened);

[0036] Figure 4 It is a schematic diagram of the platform assembly (the movable panel is opened) in the first embodiment of the present invention;

[0037] Figure 5 is a schematic diagram of the rotating member in the first embodiment of the present invention;

[0038] Figure 6 6A to 6C are schematic diagrams of the movable locking member in the first embodiment of the present invention (6A to 6C are different configurations of the movable locking member);

[0039] Figure 7 This is a schematic diagram of the construction platform after it is unfolded in the second embodiment of the present invention;

[0040] Figure 8 is a schematic diagram of the first connecting component in Embodiment 2 of the present invention;

[0041] Fig. 9 This is a schematic diagram of the second connecting component in Embodiment 2 of the present invention.

[0042] The markings in the figure are: 1-platform assembly, 11-platform frame, 111-first square steel pipe, 12-walking board, 121-fixed plate, 1211-first side, 1212-second side, 122-movable board, 123-second hinge, 1231-second pin, 13-skirting board, 130-first strip, 1301-first clearance opening, 14-angle iron, 141-first mounting hole, 142-second mounting hole, 15-second square steel pipe, 2-guardrail assembly, 21-first guardrail, 210-second strip, 2101-second clearance opening, 211-third party steel pipe, 212-fourth party steel pipe, 213-guard net, 22- The second guardrail, 221-the fifth square steel pipe, 222-limiting hole, 2221-the first limiting hole, 2222-the second limiting hole, 23-the second connecting assembly, 231-the sliding member, 232-the limiting ring, 233-the limiting block, 3-the first connecting assembly, 31-the first hinge, 311-the first pin shaft, 312-the connecting plate, 3121-the giving groove, 313-the support plate, 32-the fastening assembly, 321-the fixing frame, 322-the movable locking member, 3221-the rotating shaft, 3222-the screw, 3223-the nut, 3224-the nut, 33-the limiting assembly, 331-the limiting mother member, 3311-the limiting mouth, 332-the movable latch. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0044] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "installed / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0046] Embodiment 1

[0047] As shown in Figure 5 to Figure 6, an embodiment of the present invention provides a folding cap beam construction platform, which is arranged on the top of the distribution beam extending from both sides of the cap beam for construction workers to pass and stand, so as to facilitate the construction of the cap beam. The construction platform includes a platform assembly 1, a guardrail assembly 2 and a first connecting assembly 3. In general, the platform assembly 1 and the bottom of the guardrail assembly 2 are rotatably connected through the first connecting assembly 3, so as to realize the folding and unfolding between the platform assembly 1 and the guardrail assembly 2. Furthermore, the guardrail assembly 2 includes a first guardrail 21, a second guardrail 22 and a second connecting assembly 23, and the first guardrail 21 and the second guardrail 22 are movably connected through the second connecting assembly 23 to realize the convergence and extension of the guardrail assembly 2 in the height direction. The first connecting member and the second connecting member also have a tightening function, so that the platform assembly 1, the first guardrail 21 and the second guardrail 22 can maintain a stable unfolded shape.

[0048] As shown in Figure 1 to Figure 2, the platform assembly 1 includes a platform frame 11, a walking board 12 and a skirting board 13. Generally speaking, the walking board 12 is arranged at the top of the platform frame 11, and the skirting board 13 is vertically arranged at one side edge of the walking board 12. At least four first square steel pipes 111 are welded around the rectangular platform frame 11, which not only provides support for the walking board 12, but also allows the construction platform to be stably erected on the distribution beams on both sides of the cap beam. The walking board 12 includes a fixed plate 121, a movable plate 122 and a third connecting member. In this embodiment, the third connecting member adopts a second hinge 123. The fixed plate 121 is welded to the top of the platform frame 11 and is configured as a normally open walking surface. In the area defined by the platform frame 11, one side of the movable plate 122 is rotatably connected to the first side 1211 of the fixed plate 121 through the second hinge 123, and the remaining sides are free. At least two of the second hinges 123 are arranged at intervals along the extension direction of the first side 1211. In this way, the movable plate 122 can rotate around the first side 1211. As shown in the figure, when the movable plate 122 is in the initial position, it is in a covered state, and together with the fixed plate 121, it serves as a walking surface. As shown in the figure, when the movable plate 122 is rotated to the open and closed position, the walking plate 12 constructs a passable operating space at the corresponding position, which is convenient for construction personnel to remove the mold, install the mold and position the cap beam formwork under the walking plate 12. Preferably, in order to make the walking plate 12 bear more stably, a first square steel pipe 111 is welded at a position close to the first side 1211 below the fixed plate 121, which is used to transfer the middle load of the walking plate 12.

[0049] The second hinge 123 includes a first pin 311. In the existing construction platform, the first pin 311 protrudes from the board surface of the walking board 12, so the construction workers are prone to kick the first pin 311 when walking, causing safety accidents. To solve this problem, as shown in the figure, the technical solution sets the first pin 311 at the bottom of the walking board 12, which optimizes and ensures the flatness of the walking surface, greatly avoiding the above-mentioned construction risks.

[0050] For the convenience of description, the side of the fixing plate 121 opposite to the first side 1211 is now defined as the second side 1212. As shown in Figure 1 to Figure 2, at the two corners of the platform frame 11, a section of the second square steel pipe 15 is vertically welded, and the two sections of the second square steel pipe 15 are respectively located at the two ends of the second side 1212. The skirting board 13 is arranged between the two sections of the second square steel pipe 15, and both sides are welded to the second square steel pipe 15. It can be understood that, as the supporting structure of the skirting board 13, the two sections of the second square steel pipe 15 are part of the platform assembly 1.

[0051] As shown in the figure, the first guardrail 21 is welded around the periphery by four square steel pipes to form a rectangular guardrail frame, and a protective net 213 is arranged between the guardrail frames to form a protective barrier for construction workers. For the convenience of description, the square steel pipes located on both sides of the first guardrail 21 are now recorded as third party steel pipes 211.

[0052] The connection form between the guardrail assembly 2 and the platform assembly 1 is now described. As shown in the figure, the first connection assembly 3 includes a rotating member and a fastening assembly 32. The rotating member is arranged at the position where the second square steel pipe 15 and the third party steel pipe 211 are axially connected. In this embodiment, the rotating member adopts a first hinge 31. The first hinge 31 includes a support plate 313, a second pin shaft 1231 and a connecting plate 312. The support plate 313 is vertically fixed to the surface of the end of the second square steel pipe 15, and the extension direction is parallel to the length direction of the second square steel pipe 15. The second pin shaft 1231 is vertically fixed to the thickness direction of the support plate 313 and extends from both sides of the support plate 313. One end of the connecting plate 312 is rotatably connected to the second pin shaft 1231, and the other end is welded to the surface of the third party steel pipe 211 near the end. It is necessary that: a clearance groove 3121 is constructed on the connecting plate 312, and the clearance groove 3121 at least covers the vertical projection range of the support plate 313 on the connecting plate 312, so that the connecting plate 312 does not get stuck with the support plate 313 when rotating around the second pin shaft 1231; further, the connecting plate 312 is not connected to the second square steel pipe 15. In this way, the connecting plate 312 can drive the third party steel pipe 211 to rotate around the second pin shaft 1231. Since the rotating parts are provided between the third party steel pipe 211 and the second square steel pipe 15 on both sides, the guardrail assembly 2 rotates around the connecting line of the two rotating parts to realize the folding and unfolding of the platform assembly 1 and the guardrail assembly 2. In other embodiments, the first connecting member can also be replaced by a conventional double-opening hinge. The pin of the double-opening hinge is located at the joint between the second square steel tube 15 and the third party steel tube 211, and is perpendicular to the length direction of the second square steel tube 15. The two connecting plates 312 of the double-opening hinge are respectively fixed to the surfaces of the second square steel tube 15 and the third party steel tube 211, and are connected to the pin to achieve relative rotation between the second square steel tube 15 and the third party steel tube 211.

[0053] As shown in the figure, when the guardrail assembly 2 is in the initial position, the guardrail assembly 2 and the platform assembly 1 are in a relatively close fit, so as to facilitate storage and transportation after the construction is completed. As shown in the figure, when the guardrail assembly 2 is rotated to the first position, the guardrail assembly 2 is perpendicular to the platform assembly 1, and the construction platform enters the working form. It can be understood that the vertical relationship is not an absolute right angle relationship in the mathematical sense. When the angle between the guardrail assembly 2 and the platform assembly 1 is set to 80° to 90°, it can be considered that there is no impact on the normal use of the construction platform. When the guardrail assembly 2 is in the first position, the third party steel pipe 211 and the second party steel pipe 15 are abutted on the side facing away from the first hinge 31, so that the guardrail assembly 2 cannot continue to rotate toward the side away from the platform assembly 1. However, in the direction close to the platform assembly 1, the guardrail assembly 2 still has the degree of freedom of rotation. If there is no fixing measure, the guardrail assembly 2 is easily affected by external force and falls toward the platform assembly 1, thereby overturning.

[0054] To solve this problem, a fastening assembly 32 is provided at the junction of the platform assembly 1 and the guardrail assembly 2. The structure and connection relationship of the fastening assembly 32 are now described in detail in conjunction with the figures.

[0055] As shown in the figure, a first strip 130 is fixedly connected to the top of the skirting board 13, and the first strip 130 is perpendicular to the skirting board 13. The first strip 130 is provided with at least one open first clearance opening 1301 along the thickness direction. A second strip 210 is fixedly connected to the bottom of the first guardrail 21, and the second strip 210 is perpendicular to the plane where the first guardrail 21 is located. Similarly, the second strip 210 is provided with at least one open second clearance opening 2101 along the thickness direction. When the guardrail assembly 2 is located at the first position, the first strip 130 is fitted with the second strip 210, and the first clearance opening 1301 is overlapped with the second clearance opening 2101. It is not difficult to understand that when the guardrail assembly 2 rotates from the first position toward the direction close to the platform assembly 1, the second strip 210 leaves the first strip 130. The fastening assembly 32 is disposed at the first clearance opening 1301 , and restricts the second strip 210 from leaving the first strip 130 , so that the guardrail assembly 2 cannot rotate toward the direction approaching the platform assembly 1 .

[0056] As shown in the figure, the fastening assembly 32 includes a fixing frame 321 and a movable locking member 322. The fixing frame 321 is fixedly connected to the first clearance opening 1301. The fixing frame 321 can be fixedly connected to the bottom of the first strip 130, or to the side of the skirting board 13, or to the first strip 130 and the skirting board 13 at the same time. The movable locking member 322 includes a rotating shaft 3221, a screw rod 3222 and a nut 3223. The rotating shaft 3221 is connected to the middle part of the fixing frame 321, and the screw rod 3222 is sleeved on the outer periphery of the rotating shaft 3221, so as to realize rotation connection with the fixing frame 321. It can be understood that at least one of the rotating shaft 3221 and the fixing frame 321, or the screw rod 3222 and the rotating shaft 3221 is movably connected. The screw rod 3222 is provided with a thread at one end away from the rotating shaft 3221 to be threadedly connected with the nut 3223. When the guardrail assembly 2 is located at the first position, the screw rod 3222 enters the first clearance opening 1301 and the second clearance opening 2101 by rotation. Then, the nut 3223 approaches and abuts against the surface of the second strip 210 from the side facing away from the fixing frame 321 through the threaded engagement with the screw rod 3222, and the fastening assembly 32 is locked. At this time, the nut 3223 and the fixing frame 321 squeeze the first strip 130 and the second strip 210 from both sides, restricting the second strip 210 from leaving the first strip 130. In this way, the guardrail assembly 2 cannot rotate relative to the platform assembly 1. When the nut 3223 moves in a direction away from the fixing frame 321 , it is sufficient to make the screw rod 3222 rotate out of the first clearance opening 1301 and the second clearance opening 2101 , the fastening assembly 32 is unlocked, and the guardrail assembly 2 can rotate in a direction close to the platform assembly 1 .

[0057] For those skilled in the art, there are a variety of non-substantially different alternatives for the arrangement of the fastening assembly 32. For example, in other embodiments, the fastening assembly 32 can be arranged on the second strip 210, opposite to the orientation of the fastening assembly 32 in this embodiment. For another example, in another embodiment, the first strip 130 is a vertical extension of the skirting board 13 at the top. The second strip 210 is parallel to the skirting board 13 and is arranged on the side of the skirting board 13 facing the walking board 12.

[0058] As for the fastening cooperation between the movable locking member 322 and the fixing frame 321, there may be a variety of equivalent alternatives. As shown in the figure, the rotating shaft 3221 is rotatably connected with the fixing frame 321, and the screw rod 3222 is radially penetrated in the middle of the rotating shaft 3221. The screw rod 3222 is provided with a nut 3224 at one end, and is threadedly connected with the nut 3223 at the other end, that is, the rotating shaft 3221 is spaced between the nut 3224 and the nut 3223. When the guardrail assembly 2 is located at the first position, the screw rod 3222 rotates to enter the first clearance opening 1301 and the second clearance opening 2101, and then the screw rod 3222 is slid so that the nut 3224 abuts against the surface of the second strip 210. Then, the nut 3223 approaches and abuts against the rotating shaft 3221 from the other side through the thread cooperation with the screw rod 3222, and the fastening assembly 32 is locked. As shown in the figure, as a lower-position replacement of the present technical solution, in another embodiment, the first clearance opening 1301 and the second clearance opening 2101 are closed, and the movable locking member 322 is slidably connected with the fixing frame 321 in a direction perpendicular to the first strip 130. When the guardrail assembly 2 is located at the first position, the screw rod 3222 slides into the first clearance opening 1301 and the second clearance opening 2101, and fastens the first strip 130 and the second strip 210 by threaded engagement with the nut 3223.

[0059] In this embodiment, since the passage width of the platform assembly 1, i.e., the dimension perpendicular to the skirting board 13, is 850 mm, in order to minimize the overall size of the construction platform after folding, the height of the first guardrail 21 is not greater than 850 mm. Obviously, this height does not meet the provisions on the height of the guardrail in the relevant specifications. To solve this problem, a second guardrail 22 is movably connected to the top of the first guardrail 21 to supplement the height of the guardrail assembly 2. In this embodiment, a folding connection is adopted between the first guardrail 21 and the second guardrail 22. As can be seen from the figure, the connection between the second guardrail 22 and the first guardrail 21 is the same as the connection between the first guardrail 21 and the platform assembly 1. The structure of the second connecting assembly 23 is the same as that of the first connecting member; the connection relationship between the second connecting assembly 23 and the first guardrail 21 and the second guardrail 22 is the same as the connection relationship between the first connecting assembly 3 and the platform assembly 1 and the first guardrail 21, which will not be described in detail herein.

[0060] For ordinary technicians in this technical field, there are many ways to achieve the height adjustment of the guardrail assembly 2. For example, in other embodiments, the second guardrail 22 is telescopically connected to the first guardrail 21, and the two side rods of the second guardrail 22 are sleeved in the two side rods of the first guardrail 21 along the height direction, and the telescopic movement between the second guardrail 22 and the first guardrail 21 is locked or unlocked by a push-type self-resetting limiter shaped like an umbrella switch. For another example, the guardrail assembly 2 can adopt a scissor-fork structure, and the height can be adjusted by lifting and pressing the guardrail assembly 2.

[0061] As shown in FIG. 1 , a full-length angle iron 14 is provided on the side of the platform assembly 1 opposite to the skirting board 13, and a plurality of first mounting holes 141 are provided on the horizontal limb of the angle iron 14 at intervals along the length direction. Through the first mounting holes 141, construction personnel can use bolt assemblies to connect the construction platform to the top of the distribution beam. A pair of second mounting holes 142 are provided on the side walls of the angle iron 14, the second square steel pipe 15, and the fourth square steel pipe 212. Through the second mounting holes 142, construction personnel can use bolt assemblies to splice the construction platforms in pairs along the outer periphery of the cap beam.

[0062] Embodiment 2

[0063] As shown in the figure, the core difference between the foldable cap beam construction platform provided in this embodiment and the embodiment one is that the first connecting component 3 adopts a latch-type limiting component 33 instead of the fastening component 32, and the first guardrail 21 and the second guardrail 22 are telescopically connected through the second connecting component 23.

[0064] Specifically, as shown in the figure, the limiting assembly 33 includes a limiting female part 331 and a movable latch 332. It is not difficult to understand that the limiting female part 331 is equivalent to the support plate 313 in the first embodiment. The limiting female part 331 is vertically fixed to the surface of the second square steel pipe 15 near the end, and the extension direction is parallel to the length direction of the second square steel pipe 15. A limiting opening penetrating the plate body is provided on the limiting female part 331, and the limiting opening extends along the length direction of the second square steel pipe 15, and the opening faces upward. The movable latch 332 is movably connected to the surface of the skirting board 13, and enters the limiting opening through reciprocating movement to fit the surface of the connecting plate 312. Due to the limiting effect of the limiting opening, the movable latch 332 has no freedom of movement in the rotation direction of the connecting plate 312, thereby preventing the connecting plate 312 from rotating in the direction close to the platform assembly 1, and macroscopically restricting the guardrail assembly 2 from falling toward the platform assembly 1. In this embodiment, the movable latch 332 is rotatably connected to the surface of the baseboard 13, and enters or exits the limit opening from the end of the limit female component 331 through its own rotation. In other embodiments, the movable latch 332 may be slidably connected to the baseboard 13 in a direction perpendicular to the limit female component 331, and enter or exit the limit opening from the lateral straight line of the limit female component 331, like a conventional door latch.

[0065] As an equivalent alternative to the present embodiment, the limiting female component 331 may also be fixed to the surface of the skirting board 13, and the movable latch 332 may be movably connected to the surface of the guardrail assembly 2. When the guardrail assembly 2 is in the first position, the movable latch 332 enters the limiting opening by sliding or rotating, and spans the surfaces of the skirting board 13 and the bottom of the guardrail assembly 2, thereby limiting the guardrail assembly 2 from rotating in the direction close to the platform assembly 1. When the movable latch 332 leaves the limiting opening, the guardrail assembly 2 can rotate toward the platform assembly 1 to achieve folding. It can be understood that the setting positions of the limiting female component 331 and the movable latch 332 are flexible and variable. As long as it is ensured that the movable latch 332 can be simultaneously located on the surfaces of the skirting board 13 and the bottom of the guardrail assembly 2 after entering the limiting opening, the limiting can be achieved.

[0066] Now, in conjunction with the figure, the telescopic connection between the first guardrail 21 and the second guardrail 22 is described. The second guardrail 22 is a "door"-shaped structure welded from at least three square steel pipes. For the convenience of the following description, the square steel pipe placed horizontally on the top of the first guardrail 21 is recorded as the fourth square steel pipe 212, and the square steel pipes located on both sides of the second guardrail 22 are recorded as the fifth square steel pipe 221. The fifth square steel pipe 221 is sleeved in the third steel pipe 211 and can slide with the third steel pipe 211 along the length direction.

[0067] As shown in the figure, the second connecting member is arranged at the position of the fourth square steel tube 212 close to the fifth square steel tube 221. The second connecting member is similar to a door latch and includes a sliding member 231, a limiting ring 232 and a limiting block 233. The sliding member 231 is attached to the surface of the fourth square steel tube 212 and slides along the length direction of the fourth square steel tube 212, that is, it slides in a direction perpendicular to the fifth square steel tube 221. The limiting ring 232 spans above the sliding member 231 and is welded to the fourth square steel tube 212 on both sides to limit the sliding member 231 from moving in a direction away from the surface of the fourth square steel tube 212. The limiting block 233 is arranged on the side of the sliding member 231 away from the fifth square steel tube 221, and the distance from the limiting block 233 to the limiting ring 232 is less than the length of the sliding member 231, so as to prevent the sliding member 231 from falling off after sliding out of the limiting ring 232 as a whole. Correspondingly, a pair of limiting holes 222 are provided on the side wall of the fifth party steel pipe 221, and the pair of limiting holes 222 are located in the sliding direction of the sliding member 231. The cross section of the limiting hole 222 matches the sliding member 231 to allow the sliding member 231 to pass through. When the sliding member 231 passes through the pair of limiting holes 222 under the action of external force and extends out of the outer edge of the end of the third party steel pipe 211, the fifth party steel pipe 221 is stuck and cannot slide down. At this time, the gravity applied to the second guardrail 22 increases the friction between the sliding member 231 and the edge of the limiting hole 222, so that it is more securely fixed in the limiting hole 222. At this time, the third party steel pipe 211 and the fifth party steel pipe 221 are in a locked state, that is, they cannot be extended or retracted. When the sliding member 231 exits the limiting hole 222 under the action of external force, the third party steel pipe 211 and the fifth party steel pipe 221 are in an unlocked state, and the fifth party steel pipe 221 can slide down or be lifted up to adjust the overall height of the guardrail assembly 2.

[0068] The fifth square steel pipe 221 is provided with two pairs of limiting holes 222 at intervals in the height direction. For the convenience of description, the pair of limiting holes 222 located at the lower position is recorded as the first limiting hole 2221, and the pair of limiting holes 222 located at the higher position is recorded as the second limiting hole 2222. When the construction platform is in the working state, the sliding member 231 and the first limiting hole 2221 are in the locked state, and the height of the guardrail assembly 2 is the maximum; when the construction is completed, the sliding member 231 and the second limiting hole 2222 are in the locked state, and the height of the guardrail assembly 2 is adjusted to the minimum for storage and transportation.

[0069] In summary, the foldable cap beam construction platform provided by the embodiment of the present invention, the platform assembly 1 and the guardrail assembly 2 are rotatably connected through the first connecting assembly 3, so that the platform assembly 1 and the guardrail assembly 2 can be quickly transformed between the two states of relative fit and vertical fixation, which greatly simplifies the erection process before construction and the disassembly, storage and transportation after the completion of construction. As for the guardrail assembly 2, the first guardrail 21 and the second guardrail 22 are connected in a telescopic manner, and the support height of the guardrail assembly 2 can be quickly adjusted, which can provide sufficient protection for the construction personnel while minimizing the overall size of the construction platform after being folded. Whether the construction platform is being unfolded and erected or folded and gathered, the connecting parts used are firmly connected to the construction platform body and do not fall off, avoiding the problem of easy loss of parts of traditional assembled construction platforms. For the walking board 12, the first hinge 31 for connecting the fixed board 121 and the movable board 122, the second pin 1231 is set at the bottom of the walking board 12, which ensures the flatness of the walking surface. The optimization here greatly avoids the construction risk that the construction workers are prone to kicking the second pin 1231 when walking. The construction platform connection method is simple and direct, the component force is stable, and the locking and unlocking operations are convenient and easy to understand, which further improves the construction efficiency.

[0070] The above description is only a preferred specific implementation mode of the present invention, and does not limit the patent scope of the present invention. Any technical equivalent changes made using the contents of the present invention specification shall fall within the protection scope of the present invention.

Claims

1. A foldable cap beam construction platform, characterized in that: It includes a platform component, a guardrail component and a first connection component; The platform assembly is detachably mounted on the top of the distribution beam extending from both sides of the cap beam; The first connecting assembly includes a rotating member and a fastening assembly; The guardrail assembly is rotatably connected to the platform assembly via the rotating member; The fastening assembly is arranged on the platform assembly or the guardrail assembly; when the guardrail assembly is in the first position, the fastening assembly can be locked or unlocked; When the fastening assembly is locked, the guardrail assembly is restricted from rotating relative to the platform assembly; when the fastening assembly is in an unlocked state, the guardrail assembly can rotate relative to the platform assembly to fit or separate from the platform assembly; When the guardrail assembly is in the first position, the angle between the guardrail assembly and the platform assembly is 80° to 90°.

2. A foldable cap beam construction platform according to claim 1, characterized in that: The guardrail assembly includes a first guardrail, a second guardrail and a second connecting assembly; The first guardrail and the second guardrail are movably connected via the second connecting assembly so that the guardrail assembly can be contracted or extended in the height direction.

3. A foldable cap beam construction platform according to claim 2, characterized in that: The rotating member includes at least one connecting plate and a first pin shaft; the first pin shaft is directly or indirectly connected to the platform assembly; The connecting plate is rotatably connected to the first pin shaft, and one end of the connecting plate away from the first pin shaft is fixedly connected to the surface of the guardrail assembly.

4. The foldable cap beam construction platform according to claim 2 is characterized in that: The platform assembly is provided with a first strip at one side thereof that is rotatably connected to the guardrail assembly; the guardrail assembly is provided with a second strip at the bottom thereof; When the guardrail assembly is at the first position, the first strip is in contact with the second strip; when the guardrail assembly rotates from the first position toward the direction approaching the platform assembly, the second strip leaves the first strip.

5. The foldable cap beam construction platform according to claim 4 is characterized in that: When the fastening assembly is locked, the first strip board and the second strip board are fastened from both sides in the thickness direction.

6. The foldable cap beam construction platform according to claim 5, characterized in that: The first strip is provided with at least one first clearance opening along the thickness direction; the second strip is provided with at least one second clearance opening along the thickness direction; when the guardrail assembly is in the first position, the first clearance opening overlaps with the second clearance opening.

7. The foldable cap beam construction platform according to claim 6 is characterized in that: The fastening assembly comprises a fixing frame and a movable locking member; the fixing frame is fixedly connected to the first clearance opening; the movable locking member is rotationally connected or slidably connected to the fixing frame; When the guardrail assembly is in the first position, the movable locking member can rotate or slide through the first and second clearance openings and abut against the surface of the first strip or the second strip from the side facing away from the fixing frame, and the fastening assembly is locked.

8. The foldable cap beam construction platform according to claim 7, characterized in that: The movable locking member comprises a screw rod and a nut; The outer diameter of the nut is greater than the width of the first clearance opening and the second clearance opening; When the fastener is locked, the screw rod is located in the first clearance opening and the second clearance opening; the nut abuts against the surface of the first strip board or the second strip board from the side facing away from the fixing frame by cooperating with the thread of the screw rod.

9. A foldable cap beam construction platform according to any one of claims 2 to 8, characterized in that: The first guardrail and the second guardrail are connected in a folding manner; The structure of the second connecting component is the same as that of the first connecting component; the connection relationship between the second connecting component and the first guardrail and the second guardrail is the same as the connection relationship between the first connecting component and the platform component and the guardrail component.

10. The foldable cap beam construction platform according to claim 1, characterized in that: The platform assembly includes a walking board; the walking board includes a fixed board and a movable board, and the fixed board and the movable board are rotatably connected by a third connecting member; The third connecting member includes a second pin shaft, and the second pin shaft is located at the bottom of the walking board.

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