Foundation pit guardrail with anti-collapse structure

Abstract

The foundation pit guardrail with the anti-collapse structure comprises a foundation pit guardrail body and fixing stand columns, the foundation pit guardrail body is vertically arranged in the transverse direction, and the fixing stand columns are vertically combined and fixed to the two sides of the foundation pit guardrail body; the front position and the rear position of the top of the foundation pit guardrail body are each provided with a pulling anti-toppling assembly used for pulling the foundation pit guardrail body from the front portion and the rear portion to prevent toppling through disassembly and assembly combination assemblies. The anti-toppling foundation pit guardrail has the advantages that the pulling anti-toppling assemblies are installed at the front position and the rear position of the top of the foundation pit guardrail body through the disassembly and assembly combination assemblies, and therefore the foundation pit guardrail body in the vertical state can be pulled from the front portion and the rear portion to be prevented from toppling through the pulling anti-toppling assemblies at the front position and the rear position; therefore, the situation that the foundation pit guardrail body collapses when the fixed stand columns are loosened is avoided, the stability of the foundation pit guardrail body in the vertical use process is improved, and meanwhile potential safety hazards are eliminated.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit guardrail auxiliary components, in particular to a foundation pit guardrail with an anti-collapse structure. Background Art

[0002] The foundation pit is an earth pit excavated at the foundation design location according to the base elevation and foundation plane dimensions. During the construction of the foundation pit, for safety reasons, people need to set up a circle of guardrails around the top of the foundation pit to prevent people from accidentally falling into the foundation pit and prevent safety accidents.

[0003] At present, when the foundation pit guardrail is set up around the outside of the foundation pit, the existing foundation pit guardrail is usually combined and connected with fixed columns on both sides, and then the foundation pit guardrail is fixed upright by fixing the fixed columns upright on the ground outside the foundation pit. Since the foundation pit guardrail is only maintained in an upright state by vertical support of the fixed columns, when the fixed columns are affected by the land and become loose, the foundation pit guardrail will collapse, which will not only lose the protective effect, but also have certain safety hazards during the collapse process. Utility Model Content

[0004] The purpose of the utility model is to provide a foundation pit guardrail with an anti-collapse structure in order to solve the above-mentioned problem. Pull-and-drop anti-collapse components are installed at the front and rear positions of the top of the foundation pit guardrail body through disassembly and assembly components. The pulling anti-collapse components at the front and rear positions can respectively pull the foundation pit guardrail body in an upright state from the front and rear to prevent it from collapsing, thereby avoiding the collapse of the foundation pit guardrail body when the fixed column is loose. See the following description for details.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides a foundation pit guardrail with an anti-collapse structure, comprising a foundation pit guardrail body and fixed columns, wherein the foundation pit guardrail body is arranged vertically in a transverse direction, and the fixed columns are erected and fixed at both sides of the foundation pit guardrail body;

[0007] The front and rear positions of the top of the foundation pit guardrail body are both installed with a pulling and anti-falling component for pulling the foundation pit guardrail body from the front and rear to prevent it from falling respectively through a disassembly and assembly assembly;

[0008] The two parts of the disassembly and assembly assembly are respectively fixedly connected to the top of the foundation pit guardrail body and the corresponding pulling and anti-falling assembly, and the pulling and anti-falling assembly is detachably connected to the foundation pit guardrail body through the corresponding disassembly and assembly assembly.

[0009] Preferably, connecting seats are extended and fixed at upper and lower positions on both sides of the foundation pit guardrail body and the fixed columns, and the connecting seats on both sides of the foundation pit guardrail body are fixedly connected to the connecting seats on the sides close to the fixed columns by inserting and adding connecting parts.

[0010] Preferably, a bottom plate is fixedly and horizontally extended on the bottom surface of the fixed column, and connecting through holes are vertically opened at the corners of the bottom plate.

[0011] Preferably, the disassembly and assembly components include a fixed seat and a matching seat, the front and rear positions on the top of the foundation pit guardrail body are fixedly installed with the fixed seat through a connecting plate, and the top surfaces of the fixed seats at the front and rear positions are vertically provided with matching grooves, the outer end surfaces of the matching grooves at the front and rear positions are open, and the lower parts of the inner end surfaces of the matching seats at the front and rear positions that are close to each other are longitudinally provided with limiting holes, the matching seats correspond one-to-one with the matching grooves and are vertically slidably matched, and the upper parts of the outer end surfaces of the matching seats at the front and rear positions that are distant from each other are installed with the pulling anti-reversal components.

[0012] Preferably, the lower parts of the outer end surfaces of the matching seats at the front and rear positions that are away from each other are provided with mounting holes in the longitudinal direction, the mounting holes are all through holes and are longitudinally coaxially aligned with the limiting holes of the corresponding matching grooves, the mounting holes are longitudinally inserted with limiting rods in a sliding manner, and the inner ends of the limiting rods at the front and rear positions that are close to each other are longitudinally slidingly matched with the corresponding limiting holes, the outer ends of the limiting rods at the front and rear positions that are away from each other are coaxially fixed with handles, the part of the limiting rod located between the corresponding handle and the outer end surface of the matching seat is coaxially gap-fitted with a spring, and the two ends of the spring are respectively fixedly connected to the corresponding handle and the outer end surface of the matching seat.

[0013] Preferably, the horizontal cross-sectional shapes of the mating seat and the mating groove are both dovetail-shaped or I-shaped, the mating grooves are blind grooves in the vertical direction, and the bottom ends of the mating seats are in contact with the bottoms of the corresponding mating grooves.

[0014] Preferably, the pulling anti-reversal components include a U-shaped seat and a ground pressure plate, the U-shaped seats are fixedly installed on the upper parts of the outer end surfaces of the matching seats at the front and rear positions that are away from each other, and the parts of the U-shaped seats at the front and rear positions that are away from each other are open, the two side parts of the U-shaped seats at the front and rear positions are transversely inserted with support shafts in a sliding manner, the parts of the support shafts at the two side positions that extend out of the outside of the U-shaped seat are rotatably connected to bearing seats, and the bearing seats are fixed to the outer end surfaces of the corresponding U-shaped seats, reels are coaxially fixed between the ends of the support shafts at the two side positions that are close to each other, and the reels at the front and rear positions are wound with pull ropes, the inner ends of the pull ropes are bound and fixed to the outer periphery of the corresponding reels, the outer ends of the pull ropes are bound and fixed to fixing rings, and the bottom surfaces of the fixing rings are horizontally fixed with the ground pressure plates.

[0015] Preferably, length locking assemblies for locking the extension length of the pull rope are installed on both sides of the U-shaped seat at the front and rear positions, and the length locking assemblies include a turntable and a locking rod. The turntables are coaxially fixed to the outer ends of the drum at the front and rear positions, and the turntables are transversely provided with a plurality of locking holes evenly distributed in the circumferential direction. The two side parts of the U-shaped seat at the front and rear positions are transversely provided with matching holes at positions corresponding to the top of the bearing seat, and the locking rods are coaxially inserted through the matching holes, and the ends of the locking rods at the two side positions that are close to each other are coaxially matched with one of the locking holes corresponding to the turntable, and the ends of the locking rods at the two side positions that are far away from each other are coaxially fixed with ends for easy holding.

[0016] Preferably, the number of the locking holes of the turntable remains consistent, and the matching holes and the locking holes are both threaded through holes, and the locking rods are both screw rods; and the ends are both knurled handles.

[0017] Preferably, anchor holes are vertically opened at the corners of the ground pressure plate, and anchor rods are vertically inserted into the anchor holes in a coaxial sliding manner. The bottom ends of the anchor rods are pointed, and the top ends of the anchor rods are provided with pressure heads with an outer diameter larger than the aperture of the anchor holes.

[0018] By adopting the above-mentioned foundation pit guardrail with an anti-collapse structure, specifically during the use of the foundation pit guardrail body, both sides of the foundation pit guardrail body can be combined and connected with the upright fixed columns by installing the connecting parts through the connecting seat, and then the fixed columns are upright and fixed to the ground around the foundation pit by driving anchor bolts through the connecting through holes of the bottom plate into the ground around the top of the foundation pit. In this way, the foundation pit guardrail body can be uprightly set on the outer surrounding ground of the top of the foundation pit for protection. Since the pulling anti-collapse components are installed at the front and rear positions of the top of the foundation pit guardrail body through the disassembly and assembly assembly, the pulling anti-collapse components at the front and rear positions can be used to protect the ground in the upright position. The pit guardrail body is pulled from the front and rear to prevent it from falling over, thereby avoiding the collapse of the pit guardrail body when the fixed column is loose, improving the stability of the pit guardrail body during upright use, and eliminating safety hazards. Specifically, in the actual operation of the pulling anti-falling assembly, the U-shaped seat of the pulling anti-falling assembly is connected to the pit guardrail body through the disassembly and assembly assembly. The pull rope is released by rotating the drum of the U-shaped seat and the length of the pull rope is locked by the length locking assembly. The ground pressure plate can be smoothly moved to attach to the ground. After the ground pressure plate is attached to the ground, the anchor rod is inserted into the ground through the anchor hole and the top pressure head is pressed tightly against the ground. The ground pressure plate can be firmly fixed to the ground, and then the upright foundation pit guardrail body can be pulled to prevent it from falling down by tightening the pull rope. The pulling and preventing the foundation pit guardrail body from falling down is simple and easy to operate. Specifically, when adjusting the extended length of the pull rope, the turntable and the drum can be locked and cannot rotate by the locking rod passing through the matching hole and coaxially cooperating with the locking hole of the turntable, so that the extended length of the pull rope can be stably locked. At the same time, the lock on the turntable and the drum that cannot rotate can be quickly released by the locking rod coming out of the locking hole, so that the drum can adjust the extended length of the pull rope by rotating. The locking and unlocking adjustment method for the extension length of the pull rope is simple and easy to operate, and then it is convenient to smoothly adjust the ground pressure plate to be attached to the ground and fixed by adjusting the extension length of the pull rope, which further facilitates the pulling and anti-falling operation of the foundation pit guardrail body. At the same time, since the extension length of the pull rope is adjustable, the fixed position of the ground pressure plate on the ground can be adjusted by adjusting the extension length of the pull rope, ensuring that the ground pressure plate can be smoothly fixed to the ground outside the top of the foundation pit, and at the same time improving the applicability of the pulling and anti-falling component. It should be noted that in the process of adjusting the extension length of the pull rope, when the extension of the pull rope is adjusted to the point where the ground pressure plate can be in contact with the ground,If at this time one of the locking holes of the rotating disk is not coaxial with the locking rod, the length of the extended end of the pull rope can be further loosened so that the reel drives the rotating disk to rotate until one of the locking holes is coaxial with the locking rod, so as to ensure that the locking rod can cooperate with the locking hole coaxially to lock the extended length of the pull rope. Specifically, when the pulling anti-falling assembly and the foundation pit guardrail body are combined and disassembled, the pulling anti-falling assembly can be detachably fixed to the top position of the foundation pit guardrail body by the vertical sliding cooperation between the matching seat and the matching groove and the longitudinal sliding cooperation between the limit rod and the limit hole. The fixing combination method of the pulling anti-falling assembly on the top of the foundation pit guardrail body is simple and easy. The pull-and-drop anti-falling assembly can be quickly fixed on the top of the foundation pit guardrail body for use in pulling and anti-falling. When the pull-and-drop anti-falling assembly needs to be detached from the top of the foundation pit guardrail body, it is only necessary to hold the handle and pull it outwards, and the limit rod can be disengaged from the limit hole by stretching the spring. Then, the matching seat can be vertically disengaged from the matching groove to detach the pull-and-drop anti-falling assembly from the top position of the foundation pit guardrail body. The detachment method of the pull-and-drop anti-falling assembly at the top of the foundation pit guardrail body is simple and easy to operate, which is convenient for regular inspection and maintenance after the pull-and-drop anti-falling assembly is removed, and it is also convenient for the pull-and-drop anti-falling assembly to be smoothly detached and transported and stored separately after the use of the foundation pit guardrail body is completed.

[0019] The beneficial effects are as follows: 1. The utility model is provided with a pulling anti-falling assembly at the front and rear positions of the top of the foundation pit guardrail body by disassembling and assembling the assembly components, so that the pulling anti-falling assembly at the front and rear positions can pull the foundation pit guardrail body in the standing state from the front and rear to prevent it from falling, thereby avoiding the collapse of the foundation pit guardrail body when the fixed column is loose, improving the stability of the foundation pit guardrail body during the standing use process, and eliminating safety hazards;

[0020] 2. The U-shaped seat of the pulling anti-falling assembly is connected to the foundation pit guardrail body through the disassembly and assembly assembly. The U-shaped seat drum is rotated to release the pull rope and the length of the pull rope is locked by the length locking assembly, so that the ground pressure plate can be smoothly moved to adhere to the ground. At the same time, the anchor rod is inserted into the ground through the anchor hole to firmly fix the ground pressure plate on the ground. Then, the upright foundation pit guardrail body can be pulled to prevent falling by tightening the pull rope. The pulling and preventing falling of the foundation pit guardrail body is simple and easy to operate.

[0021] 3. The lock rod passes through the matching hole and is coaxially matched with the locking hole of the turntable to lock the turntable and the drum so that they cannot rotate, and then the extended length of the pull rope can be stably locked. At the same time, the lock rod is released from the locking hole to quickly release the lock on the turntable and the drum, and then the extended length of the pull rope can be adjusted by rotating the drum. The locking and unlocking adjustment method for the extended length of the pull rope is simple and easy to operate, and then the ground-attached pressure plate can be smoothly adjusted to the ground and fixed by adjusting the extended length of the pull rope, which further facilitates the pulling and anti-falling operation of the foundation pit guardrail body;

[0022] 4. Since the extension length of the pull rope is adjustable, the fixed position of the ground pressure plate on the ground can be adjusted by adjusting the extension length of the pull rope, ensuring that the ground pressure plate can be smoothly fixed on the ground outside the top of the foundation pit, while improving the applicability of the pull anti-fall component;

[0023] 5. The pull-and-pull anti-fall assembly can be detachably fixed at the top of the foundation pit guardrail body by means of vertical sliding cooperation between the matching seat and the matching groove and longitudinal sliding cooperation between the limiting rod and the limiting hole. The fixing combination method of the pull-and-pull anti-fall assembly at the top of the foundation pit guardrail body is simple and easy to operate, and then it is convenient to quickly fix the pull-and-pull anti-fall assembly at the top of the foundation pit guardrail body for pull-and-pull anti-fall use;

[0024] 6. Simply pull the limit rod out of the limit hole to make the mating seat vertically out of the mating groove and remove the pull-and-pull anti-fall assembly from the top of the foundation pit guardrail body. The disassembly method of the pull-and-pull anti-fall assembly at the top of the foundation pit guardrail body is simple and easy to operate, which is convenient for regular inspection and maintenance after the pull-and-pull anti-fall assembly is removed, and it is also convenient for the pull-and-pull anti-fall assembly to be smoothly disassembled and transported and stored separately after the use of the foundation pit guardrail body is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is an overall axonometric schematic diagram of the utility model;

[0027] Figure 2 This utility model Figure 1 Cross-section diagram of Figure 1 ;

[0028] Figure 3 This utility model Figure 2A local enlarged view of point A;

[0029] Figure 4 This utility model Figure 1 Cross-section diagram of Figure 2 ;

[0030] Figure 5 This utility model Figure 4 A partial enlarged view of point B;

[0031] Figure 6 This utility model Figure 1 Cross-section diagram of Figure 3 ;

[0032] Figure 7 This utility model Figure 6 A partial enlarged view of point C;

[0033] Figure 8 This utility model Figure 1 Cross-section diagram of Figure 4 ;

[0034] Fig. 9 This utility model Figure 8 A partial enlarged view of point D;

[0035] Fig.10 This utility model Figure 1 The front external view of

[0036] Fig.11 This utility model Figure 1 Dorsal external view of ;

[0037] Fig.12 This utility model Figure 1 The left external view of

[0038] Fig.13 This utility model Figure 1 The right external view of

[0039] Fig.14 This utility model Figure 1 External view from above.

[0040] The following are the descriptions of the reference numerals:

[0041] 1. Disassembly and assembly assembly; 101. Matching groove; 102. Matching seat; 103. Fixed seat; 104. Connecting plate; 105. Spring; 106. Handle; 107. Limit rod; 108. Mounting hole; 109. Limit hole; 2. Foundation pit guardrail body; 3. Fixed column; 4. Connecting seat; 401. Connector; 5. Bottom plate; 501. Connecting through hole; 6. Pulling and anti-falling assembly; 601. Anchor rod; 602. Ground pressure plate; 603. Fixed ring; 604. Anchor hole; 605. Pull rope; 606. Reel; 607. Length locking assembly; 6071. Locking hole; 6072. Turntable; 6073. Matching hole; 6074. Locking rod; 6075. End; 608. Bearing seat; 609. Support shaft; 6010. U-shaped seat. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0043] See also Figure 1-Figure 14As shown, the utility model provides a foundation pit guardrail with an anti-collapse structure, including a foundation pit guardrail body 2 and fixed columns 3. The foundation pit guardrail body 2 is vertically arranged in the horizontal direction, and fixed columns 3 are erected and fixed on both sides of the foundation pit guardrail body 2. The front and rear positions on the top of the foundation pit guardrail body 2 are both installed with a pulling and anti-tilting component 6 for pulling the foundation pit guardrail body 2 from the front and rear respectively through the disassembly and assembly assembly 1. Specifically, the pulling and anti-tilting component 6 includes a U-shaped seat 6010 and a ground-contacting pressure plate 602. The upper parts of the outer end surfaces of the matching seats 102 at the front and rear positions away from each other are fixedly installed with U-shaped seats 6010, and the parts of the U-shaped seats 6010 at the front and rear positions away from each other are open. The two side parts of the U-shaped seats 6010 at the front and rear positions are horizontally interspersed with support shafts 609 in a sliding manner. The parts of the support shafts 609 at the two side positions extending out of the outside of the U-shaped seat 6010 are rotatably connected with bearing seats 608, and the bearing seats 608 are fixed to the outer end surfaces of the corresponding U-shaped seats 6010. Preferably, the inner ring of the bearing built into the bearing seat 608 is aligned with the support shaft 6 The outer end of 09 is coaxially interference fit, and the bearing seat 608 is installed on the outer end face corresponding to the U-shaped seat 6010. The ends of the support shafts 609 at both sides are coaxially fixed with reels 606, and the reels 606 at the front and rear positions are wound with pull ropes 605, and the inner ends of the pull ropes 605 are bound and fixed to the outer periphery of the corresponding reels 606, and the outer ends of the pull ropes 605 are bound and fixed with fixing rings 603, and the bottom surfaces of the fixing rings 603 are horizontally fixed with ground pressure plates 602. The purpose of this arrangement is to release the pull rope 605 by rotating the reel 606 of the U-shaped seat 6010 and lock the length of the pull rope 605 after adjustment, so that the ground pressure plate 602 can be smoothly moved to the ground and fixed, and then the pull rope 605 can be tightened and straightened to pull the foundation pit guardrail body 2 in the upright state to prevent it from falling over.

[0044] See also Figure 1-Figure 5As shown, length locking components 607 for locking the extension length of the pull rope 605 are installed on both sides of the U-shaped seat 6010 at the front and rear positions. The specific length locking components 607 include a turntable 6072 and a locking rod 6074. Turntables 6072 are coaxially fixed to the outer ends of the reel 606 at the front and rear positions, and the turntable 6072 is horizontally provided with a plurality of locking holes 6071 uniformly distributed in the circumferential direction. Matching holes 6073 are horizontally provided on both side parts of the U-shaped seat 6010 at the front and rear positions at positions above the corresponding bearing seat 608. Locking rods 6074 are coaxially inserted through the matching holes 6073, and the ends of the locking rods 6074 at the two side positions that are close to each other are coaxially matched with one of the locking holes 6071 of the corresponding turntable 6072, and the ends of the locking rods 6074 at the two side positions that are far away from each other are coaxially fixed with ends for easy holding. 6075. The purpose of such a setting is that the turntable 6072 and the reel 606 can be locked and prevented from rotating by the locking rod 6074 passing through the matching hole 6073 and coaxially cooperating with the locking hole 6071 of the turntable 6072, so as to stably lock the extended length of the pull rope 605. At the same time, the lock on the turntable 6072 and the reel 606 that cannot rotate can be quickly released by the locking rod 6074 escaping from the locking hole 6071, so that the reel 606 can adjust the extended length of the pull rope 605 by rotating. The locking and unlocking adjustment method of the extended length of the pull rope 605 is simple and easy to operate. Moreover, since the extended length of the pull rope 605 is adjustable, the fixed position of the ground pressure plate 602 on the ground can be adjusted by adjusting the extended length of the pull rope 605, thereby ensuring that the ground pressure plate 602 can be smoothly fixed on the ground outside the top of the foundation pit.

[0045] See also Figure 1 , Figure 6 , Figure 7 , Figure 8 and Fig. 9As shown, the two parts of the disassembly assembly component 1 are respectively fixedly connected to the top of the foundation pit guardrail body 2 and the corresponding pulling anti-falling component 6, and the pulling anti-falling component 6 is detachably connected to the foundation pit guardrail body 2 through the corresponding disassembly assembly component 1. Specifically, the disassembly assembly component 1 includes a fixing seat 103 and a matching seat 102. The front and rear positions of the top of the foundation pit guardrail body 2 are fixedly installed with the fixing seat 103 through the connecting plate 104, and the top surfaces of the fixing seats 103 at the front and rear positions are vertically opened with matching grooves 101, and the outer end surfaces of the matching grooves 101 at the front and rear positions are open and away from each other. The lower parts of the inner end surfaces of the front and rear matching seats 102 close to each other are longitudinally provided with limiting holes 109, the matching seats 102 correspond to the matching grooves 101 one by one and are vertically slidably matched, and the upper parts of the outer end surfaces of the front and rear matching seats 102 away from each other are installed with pull-and-drop anti-reversal components 6, and the lower parts of the outer end surfaces of the front and rear matching seats 102 away from each other are longitudinally provided with mounting holes 108, and the mounting holes 108 are all through holes and are longitudinally coaxially matched with the limiting holes 109 of the corresponding matching grooves 101, and the mounting holes 108 are longitudinally interspersed with The limiting rod 107, and the inner ends of the limiting rods 107 at the front and rear positions that are close to each other are longitudinally slidably matched with the corresponding limiting holes 109, and the outer ends of the limiting rods 107 at the front and rear positions that are far away from each other are coaxially fixed with handles 106, and it is preferred that the periphery of the handle 106 does not interfere with the corresponding pull-up anti-falling component 6, so that the handle 106 can be pulled smoothly, and the part of the limiting rod 107 located between the corresponding handle 106 and the outer end surface of the matching seat 102 is coaxially gap-matched with a spring 105, and the two ends of the spring 105 are respectively connected to the corresponding handle 106 and the matching seat 10 2 The outer end surface is fixedly connected. The advantage of such a setting is that the pull-and-fall-proof component 6 can be detachably fixed at the top position of the foundation pit guardrail body 2 by means of the vertical sliding cooperation between the matching seat 102 and the matching groove 101 and the longitudinal sliding cooperation between the limiting rod 107 and the limiting hole 109. At the same time, the matching seat 102 can be vertically disengaged from the matching groove 101 and the pull-and-fall-proof component 6 can be disassembled from the top position of the foundation pit guardrail body 2 by only pulling the limiting rod 107 out of the limiting hole 109. The fixing combination and disassembly method of the pull-and-fall-proof component 6 on the top of the foundation pit guardrail body 2 are simple and easy to operate.

[0046] See also Figure 1-Figure 9As shown, the following limitations and optimizations are respectively made to the foundation pit guardrail body 2, the fixed column 3 and the disassembly and assembly assembly 1. Specifically, as to the combined connection between the foundation pit guardrail body 2 and the fixed column 3, the foundation pit guardrail body 2 and the fixed column 3 are both extended and fixed with connecting seats 4 at the upper and lower positions on both sides, and the connecting seats 4 on both sides of the foundation pit guardrail body 2 are fixedly connected with the connecting seats 4 on the sides close to the fixed column 3 by inserting and adding connecting pieces 401. With such an arrangement, it is convenient for both sides of the foundation pit guardrail body 2 to be combined and connected with the vertically arranged fixed column 3 by adding connecting pieces 401 through the connecting seats 4. At the same time, specifically to the bottom surface of the fixed column 3, the bottom surface of the fixed column 3 is horizontally extended and fixed with a bottom plate 5, and the corners of the bottom plate 5 are vertically opened with connecting through holes 501. With such an arrangement, it is convenient for the fixed columns 3 to be vertically fixed to the ground outside the foundation pit by driving anchor bolts through the connecting through holes 501 of the bottom plate 5 into the ground outside the top of the foundation pit.

[0047] Specifically speaking of the disassembly assembly component 1, the horizontal cross-sectional shapes of the mating seat 102 and the mating groove 101 are both dovetail-shaped or I-shaped. This arrangement first facilitates the mating seat 102 to have a good positioning guide design when it vertically slides along the mating groove 101, and at the same time facilitates the mating seat 102 to only slide vertically along the mating groove 101 and cannot escape from other directions. The mating grooves 101 are all blind grooves in the vertical direction, and the bottom ends of the mating seats 102 are in contact with the bottom of the corresponding mating grooves 101. The purpose of this arrangement is that in the process of the mating seat 102 vertically sliding along the mating grooves 101, when the limiting rod 107 slides vertically with the mating seat 102 to the longitudinal coaxial comparison with the corresponding limiting hole 109, it can be clearly prompted by the way that the bottom ends of the mating seats 102 are in contact with the bottom of the corresponding mating grooves 101.

[0048] See also Figure 2-Figure 5 As shown, the pull-up anti-falling assembly 6 is optimized as follows, where specifically in the length locking assembly 607, the number of locking holes 6071 of the rotating disk 6072 is consistent, and the matching holes 6073 and the locking holes 6071 are both threaded through holes, and the locking rods 6074 are all screws. Preferably, the number of locking holes 6071 of the rotating disk 6072 is at least ten. The purpose of such a setting is to facilitate the rapid combination and separation of the locking rod 6074, the matching holes 6073 and the locking holes 6071 by twisting, and facilitate the rapid coaxial matching and separation of the locking rod 6074 and the locking holes 6071, and at the same time facilitate ensuring that the locking holes 6071 have a sufficient number to enable the reel 606 to be locked at multiple circumferential angle positions. The optional end 6075 is a knurled handle, so that the locking rod 6074 can be driven to rotate by applying force by directly holding the end 6075 with the hand.

[0049] Specifically speaking of the ground pressure plate 602, anchor holes 604 are vertically opened at the corners of the ground pressure plate 602, and anchor rods 601 are vertically inserted into the anchor holes 604 in a coaxial sliding fit manner, and the bottom ends of the anchor rods 601 are pointed, and the top ends of the anchor rods 601 are provided with pressure heads with an outer diameter larger than the aperture of the anchor holes 604. This arrangement makes it easy to insert the anchor rods 601 into the ground through the anchor holes 604 and allow the pressure heads on the top to press tightly against the ground pressure plate 602, so that the ground pressure plate 602 can be firmly fixed to the ground.

[0050] By adopting the above structure, specifically in the process of using the foundation pit guardrail body 2, both sides of the foundation pit guardrail body 2 can be combined and connected with the vertically arranged fixed columns 3 by installing connecting pieces 401 through the connecting seat 4, and then the fixed columns 3 are vertically fixed to the ground around the outside of the foundation pit by driving anchor bolts into the ground around the top of the foundation pit through the connecting through holes 501 of the bottom plate 5. In this way, the foundation pit guardrail body 2 can be vertically set on the outer surrounding ground of the top of the foundation pit for protection. Since the pulling anti-falling components 6 are installed at the front and rear positions of the top of the foundation pit guardrail body 2 by disassembling and assembling the combined components 1, the pulling anti-falling components 6 at the front and rear positions can be used to pull the foundation pit guardrail body 2 in the vertical state from the front and rear respectively. The pulling and anti-falling component 6 is used to prevent the foundation pit guardrail body 2 from collapsing when the fixed column 3 is loose, thereby improving the stability of the foundation pit guardrail body 2 during upright use, and eliminating safety hazards. Specifically, in the actual operation of the pulling and anti-falling component 6, the U-shaped seat 6010 of the pulling and anti-falling component 6 is connected to the foundation pit guardrail body 2 through the disassembly and assembly assembly 1. The pull rope 605 is released by rotating the drum 606 of the U-shaped seat 6010 and the length of the pull rope 605 is locked by the length locking assembly 607. The ground pressure plate 602 can be smoothly moved to attach to the ground. After the ground pressure plate 602 is attached to the ground, the anchor rod 601 is inserted into the ground through the anchor hole 604 and the top pressure head is pressed tightly on the ground pressure plate 602. The ground pressure plate 602 is firmly fixed to the ground, and then the upright foundation pit guardrail body 2 can be pulled to prevent it from falling down by tightening the pull rope 605. The pulling and preventing the foundation pit guardrail body 2 from falling down is simple and easy to operate. Specifically, when adjusting the extension length of the pull rope 605, the locking rod 6074 passes through the matching hole 6073 and is coaxially matched with the locking hole 6071 of the turntable 6072, so that the turntable 6072 and the reel 606 cannot rotate, and then the extension length of the pull rope 605 can be stably locked. At the same time, the locking rod 6074 can be disengaged from the locking hole 6071 to quickly release the lock on the turntable 6072 and the reel 606, so that the reel 606 can be rotated. The extension length of the pull rope 605 can be adjusted in a way that the extension length of the pull rope 605 is locked and unlocked, which is simple and easy to operate. The ground pressure plate 602 can be smoothly adjusted to the ground and fixed by adjusting the extension length of the pull rope 605, which further facilitates the pulling and anti-falling operation of the foundation pit guardrail body 2. At the same time, since the extension length of the pull rope 605 is adjustable, the fixed position of the ground pressure plate 602 on the ground can be adjusted by adjusting the extension length of the pull rope 605, ensuring that the ground pressure plate 602 can be smoothly fixed to the ground outside the top of the foundation pit, and at the same time, the applicability of the pulling and anti-falling component 6 is improved. It should be noted that in the process of adjusting the extension length of the pull rope 605,When the pull rope 605 is extended and adjusted to the ground-contacting pressure plate 602, if one of the locking holes 6071 of the turntable 6072 is not coaxial with the locking rod 6074 at this time, the length of the extended end of the pull rope 605 can be further loosened to allow the reel 606 to drive the turntable 6072 to rotate until one of the locking holes 6071 is coaxial with the locking rod 6074, so as to ensure that the locking rod 6074 can be coaxially aligned with the locking hole 6071 to lock the extended length of the pull rope 605. When it comes to the combination and disassembly of the pulling anti-falling assembly 6 and the foundation pit guardrail body 2, the pulling anti-falling assembly 6 can be detachably fixed to the top position of the foundation pit guardrail body 2 by the vertical sliding cooperation between the matching seat 102 and the matching groove 101 and the longitudinal sliding cooperation between the limit rod 107 and the limit hole 109. The fixing and assembly method of the pull-and-fall prevention component 6 on the top of the foundation pit guardrail body 2 is simple and easy to operate, so it is convenient to quickly fix the pull-and-fall prevention component 6 on the top of the foundation pit guardrail body 2 for use in pulling and preventing falling. When it is necessary to detach the pull-and-fall prevention component 6 from the top of the foundation pit guardrail body 2, it is only necessary to hold the handle 106 and pull it outwards, and the limit rod 107 is disengaged from the limit hole 109 by the way of the spring 105 being stretched, and then the matching seat 102 can be vertically disengaged from the matching groove 101 to remove the pull-and-fall prevention component 6 from the top position of the foundation pit guardrail body 2. The disassembly method of the pull-and-fall prevention component 6 on the top of the foundation pit guardrail body 2 is simple and easy to operate, which is convenient for regular inspection and maintenance after the pull-and-fall prevention component 6 is removed, and it is also convenient for the pull-and-fall prevention component 6 to be smoothly disassembled and transported and stored separately after the foundation pit guardrail body 2 is used.

[0051] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A foundation pit guardrail with an anti-collapse structure, comprising a foundation pit guardrail body (2) and a fixed column (3), characterized in that: The foundation pit guardrail body (2) is arranged vertically in the transverse direction, and the fixed columns (3) are erected and fixed in combination at both sides of the foundation pit guardrail body (2); The front and rear positions of the top of the foundation pit guardrail body (2) are both provided with pulling and anti-falling components (6) for pulling and anti-falling the foundation pit guardrail body (2) from the front and rear respectively, through the disassembly and assembly components (1); The two parts of the disassembly assembly component (1) are respectively fixedly connected to the top of the foundation pit guardrail body (2) and the corresponding pulling anti-falling component (6), and the pulling anti-falling component (6) is detachably connected to the foundation pit guardrail body (2) through the corresponding disassembly assembly component (1).

2. The foundation pit guardrail with an anti-collapse structure according to claim 1, characterized in that: Connecting seats (4) are extended and fixed at upper and lower positions on both sides of the foundation pit guardrail body (2) and the fixed column (3), and the connecting seats (4) on both sides of the foundation pit guardrail body (2) are fixedly connected to the connecting seats (4) on the sides close to the fixed column (3) by means of inserting and installing connecting pieces (401).

3. The foundation pit guardrail with an anti-collapse structure according to claim 1, characterized in that: A bottom plate (5) is fixedly and horizontally extended on the bottom surface of each of the fixed columns (3), and connecting through holes (501) are vertically provided at the corners of each of the bottom plates (5).

4. A foundation pit guardrail with an anti-collapse structure according to claim 1, 2 or 3, characterized in that: The disassembly assembly components (1) each comprise a fixed seat (103) and a matching seat (102); the front and rear positions of the top of the foundation pit guardrail body (2) are fixedly mounted with the fixed seat (103) via a connecting plate (104); the top surfaces of the fixed seats (103) at the front and rear positions are vertically provided with matching grooves (101); the outer end surfaces of the matching grooves (101) at the front and rear positions are open and away from each other; the lower parts of the inner end surfaces of the matching seats (102) at the front and rear positions, which are close to each other, are longitudinally provided with limiting holes (109); the matching seats (102) correspond to the matching grooves (101) one by one and are vertically slidably matched; and the upper parts of the outer end surfaces of the matching seats (102) at the front and rear positions, which are away from each other, are installed with the pulling and falling prevention components (6).

5. The foundation pit guardrail with an anti-collapse structure according to claim 4, characterized in that: The lower parts of the outer end surfaces of the matching seats (102) at the front and rear positions that are away from each other are provided with mounting holes (108) in the longitudinal direction. The mounting holes (108) are all through holes and are longitudinally coaxially aligned with the limiting holes (109) corresponding to the matching grooves (101). The limiting rods (107) are longitudinally inserted through the mounting holes (108) in a sliding manner, and the inner ends of the limiting rods (107) at the front and rear positions that are close to each other are longitudinally slidably engaged with the corresponding limiting holes (109). The outer ends of the limiting rods (107) at the front and rear positions that are away from each other are coaxially fixed with handles (106). The part of the limiting rod (107) located between the corresponding handle (106) and the outer end surface of the matching seat (102) is coaxially gap-engaged with a spring (105), and the two ends of the spring (105) are respectively fixedly connected to the corresponding handle (106) and the outer end surface of the matching seat (102).

6. The foundation pit guardrail with an anti-collapse structure according to claim 5, characterized in that: The horizontal cross-sectional shapes of the matching seat (102) and the matching groove (101) are both dovetail-shaped or I-shaped, the matching groove (101) is a blind groove in the vertical direction, and the bottom end of the matching seat (102) is in contact with the bottom of the corresponding matching groove (101).

7. A foundation pit guardrail with an anti-collapse structure according to claim 5 or 6, characterized in that: The pulling and anti-falling components (6) each include a U-shaped seat (6010) and a ground-contacting pressure plate (602); the U-shaped seat (6010) is fixedly mounted on the upper portions of the outer end surfaces of the matching seats (102) at the front and rear positions that are away from each other, and the portions of the U-shaped seats (6010) at the front and rear positions that are away from each other are openly arranged; the two side portions of the U-shaped seats (6010) at the front and rear positions are laterally interspersed with support shafts (609) in a sliding manner; the portions of the support shafts (609) at the two side positions that extend outward from the outside of the U-shaped seats (6010) are rotatably connected to the bearing seats (6 08), and the bearing seats (608) are fixed on the outer end faces of the corresponding U-shaped seats (6010), the ends of the support shafts (609) at both sides are coaxially fixed with reels (606), and the reels (606) at the front and rear positions are wound with pull ropes (605), the inner ends of the pull ropes (605) are bound and fixed to the outer sides of the corresponding reels (606), the outer ends of the pull ropes (605) are bound and fixed to the fixing rings (603), and the bottom surface of the fixing rings (603) is horizontally fixed with the ground-contacting pressure plates (602).

8. The foundation pit guardrail with an anti-collapse structure according to claim 7, characterized in that: Both sides of the U-shaped seat (6010) at the front and rear positions are installed with a length locking assembly (607) for locking the extension length of the pull rope (605), and the length locking assembly (607) includes a rotating disk (6072) and a locking rod (6074). The rotating disk (6072) is coaxially fixed to both ends of the outer periphery of the reel (606) at the front and rear positions, and the rotating disk (6072) is transversely opened with a plurality of locking holes (6071) uniformly distributed in the circumferential direction. The two side parts of the bearing seat (608) are provided with matching holes (6073) in the horizontal direction at the positions corresponding to the upper parts of the bearing seat (608), and the matching holes (6073) are coaxially matched with the locking rods (6074) inserted therethrough, and the ends of the locking rods (6074) at the two side positions that are close to each other are coaxially matched with one of the locking holes (6071) corresponding to the rotating disk (6072), and the ends of the locking rods (6074) at the two side positions that are far away from each other are coaxially fixed with the ends (6075) for easy holding.

9. The foundation pit guardrail with an anti-collapse structure according to claim 8, characterized in that: The number of the locking holes (6071) of the rotating disk (6072) is consistent, and the matching holes (6073) and the locking holes (6071) are both threaded through holes, and the locking rods (6074) are both screw rods; and the ends (6075) are both knurled handles.

10. A foundation pit guardrail with an anti-collapse structure according to claim 8 or 9, characterized in that: Anchor holes (604) are vertically provided at the corners of the ground-contacting pressure plate (602), and anchor rods (601) are vertically inserted into the anchor holes (604) in a coaxial sliding manner, and the bottom ends of the anchor rods (601) are pointed, and the top ends of the anchor rods (601) are provided with pressure heads with an outer diameter larger than the diameter of the anchor holes (604).

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