Foundation pit periphery drainage protection structure

Abstract

The utility model relates to the technical field of building construction, in particular to a foundation pit periphery drainage protection structure which comprises an intercepting ditch and a protective fence which are arranged on the outer side of a foundation pit. The device further comprises a drainage slope, an adjusting mechanism and a cover plate. The drainage slope inclines downwards from the edge of the top of the foundation pit and extends to the intercepting ditch, and the protective fence is installed on the drainage slope. The cover plate covers the intercepting ditch, a drainage interval is arranged between the first end of the cover plate and the drainage slope, and the second end of the cover plate is connected with the intercepting ditch through an adjusting mechanism to adjust the size of the drainage interval. The utility model can solve the problems that the top of the foundation pit is easy to accumulate water and the intercepting ditch is easy to block.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a drainage protection structure around a foundation pit. Background Art

[0002] Foundation pit safety protection is an indispensable safety measure in foundation pit construction. A common means of protection is to use guardrails to enclose the foundation pit. For details, please refer to the technical scheme of patent application number CN202122448960.2, which discloses a foundation pit protection device for highway bridge construction. The patent has a guardrail around the upper mouth of the foundation pit, and an intercepting ditch is opened on the outside of the guardrail; through the setting of the intercepting ditch, precipitation and groundwater are effectively prevented from gathering in the foundation pit, ensuring that the foundation pit does not collapse due to water erosion; through the setting of the guardrail, the periphery of the foundation pit can be effectively protected to prevent people from entering the foundation pit.

[0003] In the above scheme, an intercepting ditch is set on the outside of the guardrail. Although it can prevent water from the ground outside the foundation pit from flowing into the foundation pit, due to the flat top of the pit, it is easy for water to accumulate and flow into the foundation pit or seep into the underground, affecting the stability of the soil structure. In addition, the intercepting ditch lacks protective measures, so that during daily construction and sludge transportation, large sand and gravel sludge can easily fall into the intercepting ditch and cause blockage, resulting in time-consuming and labor-intensive loosening by manual labor, increasing the construction workload and affecting the construction progress. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a drainage protection structure around a foundation pit to solve the problem that water easily accumulates on the top of the foundation pit and the intercepting ditch is easily blocked.

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

[0006] The drainage protection structure around the foundation pit includes an intercepting ditch and a guardrail arranged outside the foundation pit; it also includes a drainage slope, an adjustment mechanism and a cover plate; the drainage slope extends downward from the top edge of the foundation pit to the intercepting ditch, and the guardrail is installed on the drainage slope; the cover plate is arranged on the intercepting ditch, a drainage interval is provided between the first end of the cover plate and the drainage slope, and the second end of the cover plate is connected to the intercepting ditch through the adjustment mechanism to adjust the size of the drainage interval.

[0007] As an optional solution, the adjustment mechanism includes a rotating sleeve and two connecting rods, wherein the ends of the two connecting rods that are far away from each other are respectively fixedly connected to the side wall of the intercepting ditch and the second end of the cover plate; the ends of the two connecting rods that are close to each other are respectively connected to the two ends of the rotating sleeve by positive and negative threads, so that the distance between the second end of the cover plate and the side wall of the intercepting ditch can be adjusted by rotating the rotating sleeve through positive and negative thread cooperation.

[0008] As an optional solution, a nut for rotating the rotating sleeve is coaxially fixedly connected to the middle of the rotating sleeve.

[0009] As an optional solution, the guardrail includes a plurality of vertical bars and horizontal bars connected in a criss-cross pattern, and a protective net is hung on the horizontal bars.

[0010] As an optional solution, the lower end of the vertical rod is connected to a diagonal brace, and is connected to the drainage slope through the diagonal brace.

[0011] As an optional solution, the first side wall of the intercepting ditch section is connected to the drainage slope, and the first side wall is an outwardly inclined surface; the second side wall of the intercepting ditch section is connected to the cover plate, and the second side wall is a vertical surface.

[0012] As an optional solution, the height of the first side wall is higher than the height of the second side wall.

[0013] Due to the adoption of the above technical solution, the utility model will have the following beneficial effects:

[0014] The utility model provides a drainage protection structure for the periphery of a foundation pit. By setting a drainage slope extending downward from the top edge of the foundation pit to the intercepting ditch, the accumulated water on the top of the foundation pit will flow into the intercepting ditch along the drainage slope, thereby solving the problem that the top of the foundation pit is prone to water accumulation; the size of the drainage interval between the cover plate and the drainage slope can be adjusted by an adjustment mechanism, so that when the water flowing down the drainage slope and the water on the ground outside the foundation pit flow into the intercepting ditch through the drainage interval, the large sand and gravel sludge mixed therein will be blocked by the drainage interval, thereby solving the problem that the intercepting ditch is prone to blockage. At the same time, the adjustable setting of the drainage interval also ensures that the drainage interval will not affect the drainage speed due to too small a spacing, or will not play a blocking role due to too large a spacing, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A three-dimensional diagram of the foundation pit peripheral drainage protection structure according to an embodiment of the utility model at the periphery of a local foundation pit;

[0017] Figure 2 for Figure 1 Schematic cross-section diagram;

[0018] Figure 3 for Figure 1A partial schematic diagram of the middle adjustment mechanism;

[0019] Figure 4 for Figure 2 Partial schematic diagram of the middle intercepting ditch.

[0020] Figure numerals: 1. intercepting ditch; 11. first side wall; 12. second side wall; 2. guardrail; 21. vertical bar; 22. horizontal bar; 23. diagonal brace; 3. foundation pit; 31. drainage slope; 4. adjustment mechanism; 41. rotating sleeve; 42. connecting rod; 43. nut; 5. cover plate; 51. drainage partition. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical" and "

[0023] The directions or positional relationships indicated by ", "horizontal", "inside", "outside", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, 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 present invention can be understood according to specific circumstances.

[0025] Please refer to Figure 1-4In one embodiment of a foundation pit peripheral drainage protection structure of the utility model, the foundation pit peripheral drainage protection structure includes a drainage ditch 1 and a guardrail 2; wherein the guardrail 2 is arranged around the upper opening of the foundation pit 3 to prevent people from entering the foundation pit 3, and the drainage ditch 1 is arranged on the outside of the guardrail 2 to prevent the water on the ground outside the foundation pit 3 from flowing into the foundation pit 3, which belongs to the conventional arrangement in the field of building construction. In addition, the foundation pit peripheral drainage protection structure of this embodiment also includes a drainage slope 31, an adjustment mechanism 4 and a cover plate 5. wherein the drainage slope 31 extends downward from the top edge of the foundation pit 3 to the drainage ditch 1, and the specific inclination angle can be set to an angle of 10-15° with the horizontal plane, so that the accumulated water on the top of the foundation pit 3 can flow into the drainage ditch 1 along the drainage slope 31, and correspondingly, the guardrail 2 is vertically installed on the drainage slope 31. In addition, the cover plate 5 is covered on the intercepting ditch 1, and a drainage gap 51 is provided between the first end of the cover plate 5 and the drainage slope 31. The drainage gap 51 is used for allowing water flowing down the drainage slope 31 and water on the ground outside the intercepting ditch 1 to pass through, while blocking large sand and gravel sludge mixed in the water flowing into the intercepting ditch 1 to prevent clogging of the intercepting ditch 1; and the second end of the cover plate 5 is connected to the intercepting ditch 1 through the adjustment mechanism 4 to adjust the size of the drainage gap 51 according to the actual construction environment, so that the drainage gap 51 can play a role in blocking large sand and gravel sludge while minimizing the influence of the drainage gap 51 being too small on the drainage speed.

[0026] Specifically, a square groove connected to the intercepting groove 1 is opened on the upper edge of the second side wall 12 of the intercepting groove 1, and the bottom wall of the square groove is fixedly covered with a rubber strip. The second end of the cover plate 5 is arranged on the rubber strip and connected to the side wall of the square groove through the adjustment mechanism 4. When in use, the cover plate 5 is slid on the rubber strip through the adjustment mechanism 4 to adjust the distance between the second end of the cover plate 5 and the side wall of the square groove. Since the rubber strip is made of elastic rubber material, it has a certain buffering effect, so that the cover plate 5 is not easily worn when sliding on the rubber strip, thereby improving the service life.

[0027] More specifically, the adjustment mechanism 4 includes a rotating sleeve 41 and two connecting rods 42, wherein the ends of the two connecting rods 42 that are far away from each other are respectively fixedly connected to the second side wall 12 (that is, the side wall of the square groove) of the intercepting ditch 1 and the second end of the cover plate 5; the ends of the two connecting rods 42 that are close to each other are respectively connected to the two ends of the rotating sleeve 41 with positive and negative threads, so that the rotating sleeve 41 is rotated forwardly to reduce the distance between the second end of the cover plate 5 and the second side wall 12 (that is, the side wall of the square groove) of the intercepting ditch 1 by cooperating with the positive and negative threads of the two connecting rods 42, or the rotating sleeve 41 is rotated backwardly to expand the distance between the second end of the cover plate 5 and the second side wall 12 (that is, the side wall of the square groove) of the intercepting ditch 1 by cooperating with the positive and negative threads of the two connecting rods 42, thereby achieving the purpose of adjusting the drainage interval 51.

[0028] Furthermore, a nut 43 may be coaxially fixedly connected to the middle of the rotating sleeve 41 , and a tool such as a wrench matching with the nut 43 may be used to facilitate the rotation of the rotating sleeve 41 .

[0029] Specifically, the guardrail 2 includes a plurality of vertical bars 21 and a plurality of horizontal bars 22, which are crisscrossed and connected and fixed at the connection points by buckles, and a protective net is hung on the horizontal bars 22. The protective net is a safety device used to protect people and objects from external splashes, falls or other hazards. It is usually used in places that need protection, such as construction sites, industrial sites, and stadiums. The protective net is made of durable ropes or mesh materials, which can effectively block the fall of objects or prevent people from accidentally falling.

[0030] Furthermore, in order to improve the stability of the guardrail 2, a diagonal brace 23 can be welded to the lower end of the vertical rod 21, and the drainage slope 31 is connected through the diagonal brace 23. The diagonal brace 23 is located on the side of the guardrail 2 facing the foundation pit 3, so that the guardrail 2 can withstand greater pressure from the side of the guardrail 2 facing away from the foundation pit 3, making it less likely for the guardrail 2 to topple over when squeezed by people, thereby more effectively preventing people from falling into the foundation pit 3.

[0031] It should be noted that the intercepting ditch 1 in the prior art mostly adopts a trapezoidal cross section, which has a larger flow rate and is convenient for silting and drainage; in this embodiment, the first side wall 11 of the cross section of the intercepting ditch 1 is connected to the drainage slope 31, and the first side wall 11 is an outward inclined surface; the second side wall 12 of the cross section of the intercepting ditch 1 is connected to the cover plate 5, and the second side wall 12 is a vertical surface. Since water will impact the second side wall 12 of the intercepting ditch 1 after entering the intercepting ditch 1 from the drainage interval 51, if the second side wall 12 adopts the existing inclined surface design, the kinetic energy lost by the water after impacting the second side wall 12 is small, and the water will flow upward along the second side wall 12 for a certain distance and then impact the bottom wall of the intercepting ditch 1 downward. In the long run, it will cause a cavity at the bottom of the intercepting ditch 1, and finally cause the intercepting ditch 1 to collapse and lose its function. The second side wall 12 of this embodiment adopts a vertical surface, and the water will lose most of its kinetic energy after impacting the second side wall 12, and the water will be radiated back in the horizontal direction, thereby reducing the impact on the bottom wall of the intercepting ditch 1 and extending the service life of the intercepting ditch 1.

[0032] On this basis, the height of the first side wall 11 can be set to be higher than the height of the second side wall 12, preferably 100 to 200 mm higher in the vertical direction, so as to effectively prevent the water reflected by the second side wall 12 and the water on the ground outside the foundation pit 3 from flowing over the drainage slope 31 into the foundation pit 3.

[0033] The usage method or working principle of the utility model is as follows:

[0034] When water accumulates on the top of the foundation pit 3 , the water will flow down along the drainage slope 31 and flow into the intercepting ditch 1 through the drainage interval 51 .

[0035] When there is large-scale sand and gravel sludge in the construction environment outside the foundation pit 3, the rotating sleeve 41 is rotated forward and backward according to the actual size of the sand and gravel sludge, and the distance between the second end of the cover plate 5 and the side wall of the intercepting ditch 1 is adjusted by the forward and reverse threads of the two ends of the rotating sleeve 41 and the connecting rod 42, thereby adjusting the size of the drainage interval 51. In this way, when the water flowing down the drainage slope 31 and the water on the ground outside the foundation pit 3 flow into the intercepting ditch 1 through the drainage interval 51, the large-scale sand and gravel sludge mixed therein will be blocked by the drainage interval 51 to prevent the intercepting ditch 1 from being blocked.

[0036] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A drainage protection structure outside the foundation pit, comprising a drainage ditch (1) and a guardrail (2) arranged outside the foundation pit (3); It is characterized in that It also comprises a drainage slope (31), an adjustment mechanism (4) and a cover plate (5); the drainage slope (31) extends downwardly from the top edge of the foundation pit (3) to the intercepting ditch (1), and the guardrail (2) is installed on the drainage slope (31); the cover plate (5) is covered on the intercepting ditch (1), a drainage interval (51) is provided between the first end of the cover plate (5) and the drainage slope (31), and the second end of the cover plate (5) is connected to the intercepting ditch (1) through the adjustment mechanism (4) to adjust the size of the drainage interval (51).

2. The foundation pit peripheral drainage protection structure according to claim 1, It is characterized in that The adjustment mechanism (4) comprises a rotating sleeve (41) and two connecting rods (42); the ends of the two connecting rods (42) that are far away from each other are respectively fixedly connected to the side wall of the intercepting ditch (1) and the second end of the cover plate (5); and the ends of the two connecting rods (42) that are close to each other are respectively connected to the two ends of the rotating sleeve (41) by positive and negative threads, so that the distance between the second end of the cover plate (5) and the side wall of the intercepting ditch (1) can be adjusted by rotating the rotating sleeve (41) through positive and negative thread matching.

3. The foundation pit peripheral drainage protection structure according to claim 2, It is characterized in that A nut (43) for rotating the rotating sleeve (41) is coaxially fixedly connected to the middle of the rotating sleeve (41).

4. The foundation pit peripheral drainage protection structure according to claim 1, It is characterized in that The guardrail (2) comprises a plurality of vertical bars (21) and horizontal bars (22) connected in a crisscross manner, and a guard net is hung on the horizontal bar (22).

5. The foundation pit peripheral drainage protection structure according to claim 4, It is characterized in that The lower end of the vertical rod (21) is connected to an oblique brace (23), and is connected to the drainage slope (31) via the oblique brace (23).

6. The foundation pit peripheral drainage protection structure according to claim 1, It is characterized in that The first side wall (11) of the cross section of the intercepting ditch (1) is connected to the drainage slope (31), and the first side wall (11) is an outwardly inclined surface; the second side wall (12) of the cross section of the intercepting ditch (1) is connected to the cover plate (5), and the second side wall (12) is a vertical surface.

7. The foundation pit peripheral drainage protection structure according to claim 6, It is characterized in that The height of the first side wall (11) is higher than the height of the second side wall (12).

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