Adjustable foundation pit edge protective fence

Abstract

The utility model discloses an adjustable foundation pit near-edge protective fence, which relates to the technical field of building construction safety guardrails, and adopts the technical scheme that the adjustable foundation pit near-edge protective fence comprises a main protective fence (1), a telescopic protective fence (2), a stand column (7) and a support (3), the support (3) is fixedly connected with the stand column (7) through a bolt, the stand column (7) is slidably sleeved with an adjusting part (5) which can rotate and is used for adjusting the angle, and the telescopic protective fence (2) is fixedly connected with the main protective fence (1). The adjusting part (5) is connected with the main guardrail body (1) and the telescopic guardrail body (2) through plug connectors (8), and the main guardrail body (1) and the telescopic guardrail body (2) are connected in an inserted mode through the connecting part (6). The telescopic guardrail has the advantages that height and angle adjustment to a certain degree is achieved by means of sliding sleeve connection of the adjusting portion and the stand column and fixing of the adjusting portion and the stand column through the fastening screws, the telescopic guardrail can be inserted into the main guardrail, width adjustment of the guardrail is achieved, the telescopic guardrail is provided with the graduated scale, and distance measurement is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction safety guardrails, in particular to an adjustable foundation pit edge guardrail. Background Art

[0002] In current construction projects, it is very common for foundation pits to be excavated over 2m, and the Technical Specifications for Safety of Earthwork Engineering in Construction clearly stipulates that "protective railings must be installed around foundation pits with a depth of more than 2m". In actual sites, there will be problems such as inconsistent site elevations and complex and changeable terrain. The currently used foundation pit edge protective railings are generally steel pipes or tool-type protective railings, and the height and width are not adjustable, which cannot achieve the purpose of adapting to the site terrain. The existing technology mainly has the following problems:

[0003] Since the length of traditional guardrails cannot be adjusted at corners, cutting and welding operations are often required to make the length adapt to the terrain.

[0004] When the ground elevation varies greatly, traditional guardrails need to be placed at an angle or cut and assembled, which is time-consuming and labor-intensive.

[0005] Traditional guardrails cannot be rotated arbitrarily at the corners of the foundation pit and have poor ability to adapt to the on-site terrain.

[0006] Traditional guardrails require the installation of two columns at corners and elevation changes, which is time-consuming and labor-intensive, increases costs, has poor integrity, and is unsightly. Utility Model Content

[0007] In order to achieve the purpose of the above-mentioned utility model, in view of the problems that the above-mentioned traditional guardrails cannot rotate freely, cannot be extended, cannot adapt to the complex terrain of the construction site, the double columns cannot form a whole and are not beautiful, the utility model provides an adjustable foundation pit edge guardrail, and its technical solution is: an adjustable foundation pit edge guardrail, including a main guardrail, a telescopic guardrail, a column, and a support, the support and the column are fastened with bolts, and the column is slidably sleeved with an adjustment part that can be rotated to adjust the angle, the adjustment part is respectively connected to the main guardrail and the telescopic guardrail through connectors, and the main guardrail and the telescopic guardrail are plug-in connected through a connecting part.

[0008] Preferably, the cross-section of the column is polygonal or circular, and the column is made of metal.

[0009] Preferably, the adjustment part comprises a sleeve ring, a perforated ear plate, and a fastening screw. The sleeve ring has the same shape as the cross-sectional shape of the column. The fastening screw penetrates the sleeve ring and abuts against the column. The perforated ear plate is hingedly connected to the sleeve ring.

[0010] Preferably, the connecting portion includes a groove, a roller, and an anti-slip block, the telescopic guardrail can be inserted into the groove, the roller is arranged on one side of the groove, and a limit block is arranged at one end of the groove to prevent the roller from slipping.

[0011] Preferably, the support comprises an anchor bolt, an anchor plate, a fastening bolt and a fixing plate, the anchor bolt and the fixing plate are fixedly connected to the anchor plate, and the fastening bolt penetrates the fixing plate and reaches the column.

[0012] Preferably, the connector is a bolt, a pin or a pin sheet.

[0013] Preferably, the telescopic guardrail is provided with a scale for recording the length of insertion into the main guardrail.

[0014] The beneficial effects of the technical solution provided by the embodiment of the utility model are as follows: the utility model provides an adjustable foundation pit edge guardrail device, which adopts the sliding sleeve connection between the adjustment part and the column and is fixed with a fastening screw, which can not only adjust the height to a certain extent, but also realize the rotation of the railing at a certain angle. The coordinated use of the column and the guardrail can adjust the guardrail at multiple angles, without the need for double columns, which can reduce costs and solve the problem that the double columns need to disconnect the guardrail, which has poor integrity and poor safety. The adjustable foundation pit edge guardrail can be adjusted and installed according to different heights, which is convenient for use at places where the ground height changes on site. The telescopic guardrail can be inserted into the main guardrail, and the pulley can reduce the friction resistance during extraction. When the width is insufficient, the guardrail can be pulled out, which is convenient for use at the corner position of the site and other working conditions where the length of the railing needs to be changed. The telescopic guardrail has a scale, which is also convenient for measuring distance.

[0015] The adjustable foundation pit edge protection railing is a unified whole after installation, with no disconnections, strong integrity and high safety. When dismantling the guardrail after use, you only need to remove the bolts at the fixed support, and the upper structure can be completely recycled. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0017] Figure 2 This is a detailed view of the support according to an embodiment of the present utility model.

[0018] Figure 3 This is a detailed diagram of the adjustment part of an embodiment of the utility model.

[0019] Figure 4 This is a detailed diagram of the connection portion A of an embodiment of the present utility model.

[0020] Figure 5 It is a partial enlarged view of Example B of the utility model.

[0021] Among them, the accompanying drawings are marked as follows: 1. main guardrail; 2. telescopic guardrail; 3. support; 301. anchor bolt; 302; anchor plate; 303. fastening bolt; 304. fixing plate; 4. scale; 5. adjustment part; 501. sleeve ring; 502. ear plate with hole; 503. fastening screw; 6. connecting part; 601. groove; 602. roller; 603. limit block; 604. anti-drop block; 7. column; 8. connector; DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] In the description of the invention of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention of the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.

[0026] Example 1

[0027] See also Figures 1 to 5The utility model provides an adjustable foundation pit edge guardrail, including a main guardrail 1, a telescopic guardrail 2, a column 7, and a support 3. The support 3 is fastened to the column 7 by bolts, and an adjusting portion 5 that can be rotatably sleeved on the column 7 for adjusting the angle is slidably sleeved. The adjusting portion 5 is respectively connected to the main guardrail 1 and the telescopic guardrail 2 through a plug-in connector 8, and the main guardrail 1 and the telescopic guardrail 2 are plug-connected through a connecting portion 6.

[0028] Preferably, the cross section of the column 7 is polygonal or circular, and the column 7 is made of metal. The polygonal shape can increase the anti-rotation ability, while the circular cross section is slightly worse, and the metal can be made of stainless steel.

[0029] Preferably, the adjustment part 5 includes a sleeve ring 501, a perforated ear plate 502, and a fastening screw 503. The sleeve ring 501 has the same shape as the cross-sectional shape of the column 7. The fastening screw 503 penetrates the sleeve ring 501 and abuts against the column 7. The perforated ear plate 502 is hingedly connected to the sleeve ring 501. The ear plate and the sleeve ring can be hinged, and the hinged connection can be a hinge connection or a shaft connection to further increase the rotation ability of the angle.

[0030] The connecting part 6 includes a groove 601, a roller 602, and an anti-slip block 604. The telescopic guardrail 2 can be inserted into the groove 601. The roller 602 is arranged on one side of the groove 601. A stopper 603 is arranged at one end of the groove 601 to prevent the roller from slipping. The roller can be arranged on one side of the groove to better enhance the sliding ability.

[0031] The support 3 includes an anchor bolt 301 , an anchor plate 302 , a fastening bolt 303 , and a fixing plate 304 . The anchor bolt 301 and the fixing plate 304 are fixedly connected to the anchor plate, and the fastening bolt 303 penetrates the fixing plate 304 and reaches the column 7 .

[0032] The plug-in connector 8 is a bolt, a pin or a pin sheet.

[0033] The telescopic guardrail 2 is provided with a scale 4 for recording the length of the insertion into the main guardrail 1. The scale can be affixed to the upper side of the telescopic guardrail with a sticker, or engraved on the telescopic guardrail.

[0034] When the utility model is used, the bottom elevation of the water retaining platform of the foundation pit edge guardrail is determined according to the actual situation of the foundation pit on site and the elevation / elevation in the drawing. The height of the water retaining platform is usually not less than 200mm. After the elevation is determined, the water retaining platform is cast with a height of 200mm. When the concrete strength of the water retaining platform reaches 100%, the anchor bolts 301 are driven or pre-buried to fix the support 3 to the water retaining platform.

[0035] When encountering different elevations, the support 3 is fixed at a lower position, and the column 7 is installed thereon. The support 3 and the column 7 are both provided with bolt holes, and the two are tightly connected by fastening bolts. The adjustment part 5 is put on the column 7, and after adjusting the height, it is tightened with the column 7 with fastening screws, and the ear plate 502 with holes on the adjustment part is aligned with the hole of the connecting piece on the guardrail and fixed with bolts or pins.

[0036] When the corner of the foundation pit is encountered, the telescopic guardrail 2 is pulled out from the main guardrail 1, and the length of the guardrail can be changed. The ability of the guardrail to adapt to the terrain is effectively improved through the telescopic adjustment of the telescopic guardrail 2. When the angle of the guardrail needs to be changed at the corner of the foundation pit, the adjustment part 5 and the column 7 can cooperate to achieve a variety of angle changes.

[0037] When dismantling the guardrail after use, you only need to remove the bolts at the fixed support, and the upper structure can be completely recycled.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable foundation pit edge guardrail, characterized in that: The invention comprises a main guardrail (1), a telescopic guardrail (2), a column (7), and a support (3); the support (3) and the column (7) are fastened together by bolts; an adjusting portion (5) which can be rotated to adjust the angle is slidably sleeved on the column (7); the adjusting portion (5) is respectively connected to the main guardrail (1) and the telescopic guardrail (2) by a plug-in connector (8); and the main guardrail (1) and the telescopic guardrail (2) are plug-connected by a connecting portion (6).

2. The adjustable foundation pit edge guardrail according to claim 1, characterized in that: The cross section of the column (7) is polygonal or circular, and the column (7) is made of metal.

3. The adjustable foundation pit edge guardrail according to claim 2, characterized in that: The adjusting portion (5) comprises a sleeve ring (501), a perforated ear plate (502), and a fastening screw (503); the sleeve ring (501) has the same shape as the cross-sectional shape of the column (7); the fastening screw (503) penetrates the sleeve ring (501) and abuts against the column (7); and the perforated ear plate (502) is hingedly connected to the sleeve ring (501).

4. The adjustable foundation pit edge guardrail according to claim 1, characterized in that: The connecting portion (6) comprises a groove (601), a roller (602), and an anti-slip block (604); the telescopic guardrail (2) can be inserted into the groove (601); the roller (602) is arranged on one side of the groove (601); and a limiting block (603) is arranged at one end of the groove (601) to prevent the roller from slipping.

5. The adjustable foundation pit edge guardrail according to claim 1, characterized in that: The support (3) comprises an anchor bolt (301), an anchor plate (302), a fastening bolt (303), and a fixing plate (304); the anchor bolt (301) and the fixing plate (304) are both fixedly connected to the anchor plate; the fastening bolt (303) penetrates the fixing plate (304) and abuts against the column (7).

6. The adjustable foundation pit edge guardrail according to claim 1, characterized in that: The plug-in connector (8) is a bolt, a pin or a pin sheet.

7. The adjustable foundation pit edge guardrail according to claim 1, characterized in that: The telescopic guardrail (2) is provided with a scale (4) for recording the length of the insertion into the main guardrail (1).

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