Easily disassembled and assembled edge protective fence for building foundation pit

Abstract

The utility model discloses a building foundation pit edge protective fence easy to disassemble and assemble, and relates to the technical field of building foundation pit edge protection. Comprising a plurality of vertical supports, the bottoms of the vertical supports are fixedly connected with the ground through bolts, the vertical supports are arranged at intervals, a protective net is arranged between every two vertical supports, and a plurality of fixing mechanisms are installed on one side face of each vertical support. The two sides of the protective net are horizontally and detachably connected to the two vertical supports through the fixing mechanisms on the two adjacent vertical supports, the other side face of each vertical support is rotationally connected with a telescopic inclined strut, and the bottom of each inclined strut is fixedly connected with the ground through a bolt. The device is simple in structure, convenient to assemble, disassemble, maintain and replace on site and low in manufacturing and maintenance cost, and has great popularization significance.

Description

Technical Field

[0001] The utility model relates to the technical field of building foundation pit enclosure guardrails, in particular to an easily disassembled edge guardrail for a building foundation pit. Background Art

[0002] During the construction of a building project, guardrails must be installed on the side of a foundation pit with an excavation depth of more than 2m. The edge guardrail is a temporary protection and needs to meet the requirements of easy disassembly and assembly and flexible turnover. The patent with application number 202120854844.8 provides a foundation pit guardrail, which includes two columns vertically arranged on the edge of the foundation pit and a guardrail body arranged between the two columns. The lower end of the column is fixedly connected to a bottom plate, and the bottom plate is fixedly connected to the edge of the foundation pit through a plurality of first connecting members. The two columns are connected to the opposite sides of the two columns. A fixed rod is sleeved on the fixed rod. A support rod is hinged on the side of the first slider away from the guardrail body. A fixed plate is hinged on the end of the support rod away from the first slider. The fixed plate can be fixedly connected to the edge of the foundation pit through a second connecting member, and the first slider is fixed to the side of the fixed rod through a locking assembly. This patent has a complex structure, high manufacturing cost and later maintenance cost, and is cumbersome to disassemble and assemble, which is not conducive to on-site construction. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an easily disassembled edge protection fence for a building foundation pit, which has a simple structure, is convenient for on-site disassembly and assembly, replacement and maintenance, and has low manufacturing and maintenance costs.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] The invention discloses an easily detachable edge guardrail for a building foundation pit, comprising a plurality of vertical supports, the bottoms of the vertical supports being fixedly connected to the ground by bolts, the vertical supports being arranged at intervals, a guard net being arranged between every two vertical supports, a plurality of fixing mechanisms being installed on one side of each vertical support, the fixing mechanisms on two adjacent vertical supports respectively and horizontally detachably connect the two sides of the guard net to the tops of the two vertical supports, the other side of each vertical support being rotatably connected to a retractable diagonal brace, and the bottom of the diagonal brace being fixedly connected to the ground by bolts.

[0006] Preferably, the vertical support includes a limit bar, a base plate, and a column. The limit bar is a long strip of plate, which is located on opposite sides of the column and is vertically fixed to the side of the column along the length direction of the column. The two sides of the protective net are supported by the fixing mechanism and tightly attached to the limit bar; the base plate is fixedly connected to the bottom of the column and is fixed to the ground by bolts.

[0007] Preferably, the fixing mechanism includes a rotating part, a fastening nut, a fixing part, and a pressing part; the fixing part is a pin shaft with a thread at one end, the unthreaded end of the pin shaft is fixedly connected to the column, and the other end is rotatably connected to the rotating part and passes through the rotating part and is screwed to the fastening nut. After the fastening nut is tightened, the rotating part is pressed and fixed on the column; a threaded hole is also provided on the rotating part, and the pressing part passes through and is screwed to the threaded hole and then presses against the protective net to make the protective net close to the limit bar.

[0008] Preferably, the fixing mechanism further comprises a gasket, which is a steel plate with anti-slip grooves on the back and a groove on the front; the pressing member is provided with a threaded rod, which passes through and is screwed into the threaded hole and then pressed into the groove.

[0009] Preferably, the diagonal support includes a first rotating shaft, a sleeve, a telescopic rod, a second rotating shaft, and a base. The top end of the sleeve is detachably and rotatably connected to the column via the first rotating shaft, the bottom end of the sleeve is provided with an internal thread, the top end of the telescopic rod extends into the sleeve and is screwed to the internal thread, the bottom end of the telescopic rod is rotatably connected to the base via the second rotating shaft, and the base is fixedly connected to the ground via bolts.

[0010] The beneficial effects of adopting the above technical solution are:

[0011] 1. In the present invention, if one of the protective nets is damaged and needs to be replaced, after loosening the clamping piece and the fastening nut, the rotating piece can be rotated around the fixing piece to the other side of the column, so that the damaged protective net can be easily removed horizontally from the limit strip. Similarly, when installing, it is only necessary to erect the protective net against the two limit strips, then rotate the fixing piece to a horizontal position, and then tighten the fastening nut and the clamping piece. The operation is very convenient and labor-saving, and only one person is required to complete it.

[0012] 2. The diagonal brace is detachably rotatably connected to the column through the first rotating shaft. In areas with strong and windy winds, the diagonal brace can be installed on the column to support the guardrail. In areas without wind or with low wind, the diagonal brace does not need to be installed.

[0013] 3. A gasket is provided at the top of the clamping piece, which can increase the effective area of ​​the protective net; and the contact surface between the gasket and the protective net is provided with anti-slip grooves, which can increase the friction between the gasket and the protective net. In addition, the clamping piece is pressed in the groove of the gasket, so that the clamping piece can firmly press the protective net onto the limit strip.

[0014] 4. The utility model has a very simple structure, and the production cost of each component is very low. The vertical support and the protective net are two independent parts. The distance between the columns can be adjusted according to the width of the protective net to meet the fixation of protective nets of different sizes. It has strong adaptability and great promotion significance.

[0015] 5. The various components in the utility model can be reused, which greatly reduces the construction cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a main structural schematic diagram of the utility model;

[0017] Figure 2 yes Figure 1 AA section view;

[0018] In the figure: 1. vertical support; 11. limit strip; 12. bottom plate; 13. column; 2. protection net; 3. fixing mechanism; 31. rotating part; 32. nut; 33. fixing part; 34. pressing part; 35. gasket; 4. diagonal support; 41. first rotating shaft; 42. sleeve; 43. telescopic rod; 44. second rotating shaft; 45. base. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] The edge guardrail includes a plurality of vertical supports 1, such as Figure 1 As shown, the bottom of the vertical support 1 is fixedly connected to the ground by bolts. The vertical supports 1 are arranged at intervals, and a protective net 2 is provided between every two vertical supports. A fixing mechanism 3 is installed on one side of each vertical support 1. The two fixing mechanisms 3 on the two adjacent vertical supports 1 respectively connect the two ends of the protective net 2 to the top of the two vertical supports 1 in a horizontally detachable manner. The other side of each vertical support 1 is rotatably connected to a retractable diagonal brace 4, and the bottom of the diagonal brace 4 is fixedly connected to the ground by bolts.

[0021] like Figure 2 As shown, the vertical support 1 includes a limit bar 11, a bottom plate 12, and a column 13. The column 13 is a square tube or a rectangular steel tube. There are two limit bars 11, which are long steel plates and are vertically welded on two opposite sides of the column 3 along the length direction of the column 13. The bottom plate 12 is welded to the bottom of the column 13 and fixedly connected to the ground by bolts. When the column 13 is located at a corner, two limit bars 11 are welded on two adjacent sides of the column 13.

[0022] There are four fixing mechanisms 3, which are connected to the pillars 13 from top to bottom. Figure 2As shown, the fixing mechanism 3 includes a rotating member 31, a fastening nut 32, a fixing member 33, and a clamping member 34. The fixing member 33 is a pin with an external thread at one end, and the non-threaded end of the pin is welded to the column 13, and the other end passes through the rotating member 31 and is screwed to the fastening nut 32. After the fastening nut 32 is tightened, the rotating member 31 can be pressed and fixed on the column 12. The rotating member 31 is a steel plate, and a threaded through hole is provided at one end of the steel plate, and a round through hole is provided at the other end. The clamping member 34 can be a bolt, which is screwed and passed through the threaded through hole and pressed against the protective net 2, so that the protective net 2 is tightly fixed on the limit bar 11.

[0023] To ensure the firmness of the protective net 2, a gasket 35 is provided between the end of the pressing member 34 and the protective net 2. The gasket 35 is a steel plate with anti-skid patterns on the back and grooves on the front. The end of the pressing member 34 is pressed into the groove to prevent the gasket from moving. The anti-skid patterns on the back of the gasket 35 can increase the friction between the protective net 2 and the gasket 35, making the protective net more secure.

[0024] The diagonal brace 4 includes a first rotating shaft 41, a sleeve 42, a telescopic rod 43, a second rotating shaft 44, and a base 45. The top end of the sleeve 42 is rotatably connected to the column 13 through the first rotating shaft 41. Two parallel steel plates are welded on the column 13, and the top end of the sleeve 42 is arranged between the two steel plates. The first rotating shaft 41 passes through the steel plate and the sleeve 42 and then a split pin is installed. The diagonal brace 4 can be removed from the column 13 by simply removing the split pin and taking out the first rotating shaft 41. The bottom end of the sleeve 42 is provided with an internal thread, and the top end of the telescopic rod 43 extends into the sleeve 42 and is screwed with the internal thread. The length of the diagonal brace 4 can be adjusted by simply rotating the telescopic rod 43 and adjusting the length of the telescopic rod 43 screwed into the sleeve 42. The bottom end of the telescopic rod 43 is rotatably connected to the base 45 through the second rotating shaft 44, and the base 45 is fixedly connected to the ground by bolts.

[0025] The installation of the diagonal brace 4 is determined according to the weather and wind conditions. The diagonal brace 4 can be installed in areas with strong winds or frequent winds. If there is no wind or the wind is weak in the construction area, the diagonal brace 4 does not need to be installed. When installing the guardrail, the vertical support 1 can be fixed first, and then the protective net 2 can be pushed horizontally into between the two columns 13 so that the protective net 2 is attached to the limit strip 11. Finally, the rotating member 31 is rotated to a horizontal position, and the nut 32 and the pressing member 34 are tightened respectively to press the protective net 2 firmly on the limit strip 11.

[0026] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A construction foundation pit easily disassembled edge protection fence, characterized in that: The invention comprises a plurality of vertical supports (1), the bottom of each vertical support (1) being fixedly connected to the ground by bolts, the vertical supports (1) being arranged at intervals, a protective net (2) being arranged between every two vertical supports, a plurality of fixing mechanisms (3) being installed from top to bottom on one side of each vertical support (1), the fixing mechanisms (3) on two adjacent vertical supports (1) connecting the two sides of the protective net (2) to the tops of the two vertical supports (1) in a horizontally detachable manner, the other side of each vertical support (1) being rotatably connected to a retractable diagonal support (4), the bottom of the diagonal support (4) being fixedly connected to the ground by bolts; The vertical support (1) comprises a limit strip (11), a bottom plate (12), and a column (13); the limit strip (11) is a long strip plate, which is located on two opposite sides of the column (13) and is vertically fixedly connected to the side of the column (13) along the length direction of the column (13); the two sides of the protective net (2) are supported by the pressing parts (34) and are tightly attached to the limit strip (11); the bottom plate (12) is fixedly connected to the bottom of the column (13) and is fixedly connected to the ground by bolts; The fixing mechanism (3) comprises a rotating member (31), a fastening nut (32), a fixing member (33), and a pressing member (34); the fixing member (33) is a pin with a thread at one end, the non-threaded end of the pin is fixedly connected to the column (13), and the other end is rotatably connected to the rotating member (31) and passes through the rotating member (31) and is screwed to the fastening nut (32). After the fastening nut (32) is tightened, the rotating member (31) is pressed and fixed on the column (13); a threaded hole is also provided on the rotating member (31), and the pressing member (34) passes through and is screwed to the threaded hole and is pressed on the protective net (2) so that the protective net (2) is tightly attached to the limit strip (11).

2. The easily detachable edge guardrail for a construction foundation pit according to claim 1 is characterized in that: The fixing mechanism (3) further comprises a gasket (35), which is a steel plate having anti-slip grooves on the back and a groove on the front; the pressing member (34) is provided with a threaded rod, which passes through and is screwed into the threaded hole and then pressed into the groove.

3. The easily detachable edge guardrail for a construction foundation pit according to claim 1 is characterized in that: The diagonal support (4) comprises a first rotating shaft (41), a sleeve (42), a telescopic rod (43), a second rotating shaft (44), and a base (45); the top end of the sleeve (42) is detachably and rotatably connected to the column (13) via the first rotating shaft (41); the bottom end of the sleeve (42) is provided with an internal thread; the top end of the telescopic rod (43) extends into the sleeve (42) and is screwed to the internal thread; the bottom end of the telescopic rod (43) is rotatably connected to the base (45) via the second rotating shaft (44); and the base (45) is fixedly connected to the ground via bolts.

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