Deep foundation pit supporting structure

Abstract

The utility model belongs to the field of foundation pit supporting, and particularly relates to a deep foundation pit supporting structure which comprises a foundation pit, a support is arranged in the foundation pit, a drainage groove is formed in the bottom end of the foundation pit, a drainage assembly is arranged in the foundation pit, a limiting assembly is arranged on the surface of the support, and a water collecting well is formed in the top end of the foundation pit. In the drainage process of the hard water pipe, the filtering device can block impurities in pumped water, the situation that the impurities directly enter the hard water pipe and the soft water pipe to cause blockage is avoided, and therefore it is guaranteed that the water pumping efficiency is in a high state, the filtering device can be conveniently taken down and installed by rotating the connecting rod, and the water pumping efficiency is improved. The filtering device can be conveniently mounted and dismounted, so that the filtering device can be conveniently maintained, impurities cannot enter the hard water pipe to influence drainage, the soft water pipe cannot be pulled by walking personnel, the hard water pipe cannot be separated from the drainage tank, and the situation that the drainage efficiency is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to a deep foundation pit support 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. In order to ensure the safety of underground structure construction and the surrounding environment of the foundation pit, supports can be installed inside the foundation pit to support, reinforce and protect the side walls of the foundation pit and the surrounding environment.

[0003] At present, after the support is installed, the foundation pit can be put into use. However, during long-term use, accumulated water will penetrate from the inside of the foundation pit to the bottom of the pit. At this time, the water can be pumped out by setting up a drainage pipe. However, during the process of pumping water, impurities at the bottom of the pit will enter the inside of the pipe with the water flow. Pumping water in this way may cause pipe blockage over time, thereby reducing drainage efficiency. Therefore, a deep foundation pit support structure is proposed to address the above problems. Utility Model Content

[0004] In order to make up for the deficiencies of the prior art and avoid the problem of low pumping efficiency in a foundation pit, the utility model proposes a deep foundation pit supporting structure.

[0005] The utility model solves the technical problem by adopting the following technical solution: a deep foundation pit support structure, comprising a foundation pit, a support is arranged inside the foundation pit, a drainage groove is opened at the bottom of the foundation pit, a drainage component is arranged inside the foundation pit, a limiting component is arranged on the surface of the support, and a water collection well is opened at the top of the foundation pit;

[0006] The drainage assembly includes a fixed ring fixedly installed on the support surface, a vertical rod fixedly installed on the bottom end of the fixed ring, a rotating rod rotatably connected to the bottom end of the vertical rod, a tension spring fixedly connected to the bottom end of the vertical rod, a drainage device is arranged inside the fixed ring, a connecting rod is arranged at the bottom of the drainage device, a supporting rod is fixedly connected to the top end of the connecting rod, and a filtering device is fixedly installed on the top end of the supporting rod.

[0007] Preferably, the side of the rotating rod away from the vertical rod abuts against the bottom end of the connecting rod, the bottom end of the tension spring is fixedly connected to the top of the rotating rod, and the rotating rod abuts against the bottom end of the connecting rod under the action of the elastic force of the tension spring, thereby abutting the connecting rod to prevent it from falling.

[0008] Preferably, the drainage device comprises a hard water pipe sleeved inside a fixing ring, a vertical groove is provided at the bottom of the inner wall of the hard water pipe, an annular groove is provided on the inner wall of the hard water pipe, and a soft water pipe is sleeved on the surface of the top end of the hard water pipe.

[0009] Preferably, the connecting rod is rotatably connected to the bottom of the hard water pipe, and the filtering device is composed of a circular screen and two protrusions, which are symmetrically fixed on both sides of the circular screen. The circular screen is slidably connected to the inside of the hard water pipe, and the protrusions and the vertical grooves and the annular grooves are adapted for sliding connection. The protrusions can slide from the inside of the vertical groove to the inside of the annular groove, and then the protrusions are rotated to make the annular groove disengage from the vertical groove. At this time, the filtering device is stably confined inside the hard water pipe.

[0010] Preferably, the limiting component comprises a fixed block fixedly mounted on the support surface, one end of the fixed block away from the support is fixedly connected to a buffer spring, and one end of the buffer spring away from the fixed block is fixedly connected to a buffer belt.

[0011] Preferably, there are two combinations of fixed blocks and buffer springs, and the two ends of the buffer belt are fixedly connected to the two buffer springs respectively. The soft water pipe is located between the support and the buffer belt, and the buffer belt limits the soft water pipe to prevent people from walking and pulling the hard water pipe to move a large range, thereby avoiding ineffective drainage.

[0012] The utility model is beneficial in that:

[0013] The utility model uses the hard water pipe to drain water, and the filter device can block impurities in the pumped water to prevent the impurities from directly entering the hard water pipe and the soft water pipe to cause blockage, thereby ensuring that the pumping efficiency is in a high state, and then the connecting rod can be rotated to conveniently remove and install the filter device, so as to facilitate the installation and disassembly of the filter device, thereby facilitating the maintenance of the filter device, thereby ensuring that impurities will not enter the hard water pipe and affect the drainage;

[0014] The soft water pipe is confined to the surface of the support by the buffer spring and the buffer belt. At this time, the soft water pipe will not be pulled by walking people, and therefore the hard water pipe will not fall out of the drainage trough, avoiding the situation of reduced drainage efficiency. 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 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the drainage component of the utility model;

[0018] Figure 3 It is a structural schematic diagram of a cross-section of a hard water pipe of the utility model;

[0019] Figure 4 For the utility model Figure 3 The enlarged structural diagram at A in the middle;

[0020] Figure 5 It is a structural schematic diagram of the limiting component of the utility model.

[0021] In the figure: 1. foundation pit; 2. support; 3. drainage trough; 4. drainage assembly; 41. fixing ring; 42. vertical rod; 43. rotating rod; 44. tension spring; 45. drainage device; 451. hard water pipe; 452. vertical groove; 453. annular groove; 454. soft water pipe; 46. connecting rod; 47. supporting rod; 48. filtering device; 5. limiting assembly; 51. fixing block; 52. buffer spring; 53. buffer belt; 6. water collection well. DETAILED DESCRIPTION

[0022] 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.

[0023] The following is combined with Figure 1-5 To further explain this application in detail,

[0024] The present application embodiment discloses a deep foundation pit support structure. Figure 1 A deep foundation pit support structure comprises a foundation pit 1, a support 2 is arranged inside the foundation pit 1, a drainage groove 3 is opened at the bottom of the foundation pit 1, a drainage component 4 is arranged inside the foundation pit 1, a limiting component 5 is arranged on the surface of the support 2, and a water collection well 6 is opened at the top of the foundation pit 1;

[0025] Reference Figure 2-Figure 4 The drainage component 4 includes a fixing ring 41 fixedly mounted on the surface of the support 2, a vertical rod 42 is fixedly mounted on the bottom end of the fixing ring 41, a rotating rod 43 is rotatably connected to the bottom end of the vertical rod 42, a tension spring 44 is fixedly connected to the bottom end of the vertical rod 42, a drainage device 45 is arranged inside the fixing ring 41, a connecting rod 46 is arranged at the bottom of the drainage device 45, a side of the rotating rod 43 away from the vertical rod 42 abuts against the bottom end of the connecting rod 46, the bottom end of the tension spring 44 is fixedly connected to the top of the rotating rod 43, and the rotating rod 43 abuts against the bottom end of the connecting rod 46 under the action of the elastic force of the tension spring 44, thereby abutting against the connecting rod 46 to prevent it from falling, a supporting rod 47 is fixedly connected to the top end of the connecting rod 46, and a filtering device 48 is fixedly mounted on the top end of the supporting rod 47.

[0026] Reference Figure 2 and Figure 3 The drainage device 45 includes a hard water pipe 451 which is sleeved inside the fixing ring 41, a vertical groove 452 is provided at the bottom of the inner wall of the hard water pipe 451, an annular groove 453 is provided on the inner wall of the hard water pipe 451, a soft water pipe 454 is sleeved on the surface of the top of the hard water pipe 451, a connecting rod 46 is rotatably connected to the bottom of the hard water pipe 451, and a filter device 48 is composed of a circular filter and two protrusions, the two protrusions are symmetrically fixed on both sides of the side of the circular filter, the circular filter is slidably connected to the inside of the hard water pipe 451, the protrusions and the vertical grooves 452 and the annular grooves 453 are adapted for sliding connection, and can be slid from the inside of the vertical groove 452 to the inside of the annular groove 453 through the protrusions, and then the protrusions are rotated to make the annular groove 453 disengage from the vertical groove 452, at this time, the filter device 48 is stably confined inside the hard water pipe 451.

[0027] Reference Figure 5 The limiting component 5 includes a fixed block 51 fixedly installed on the surface of the support 2, and the end of the fixed block 51 away from the support 2 is fixedly connected to a buffer spring 52, and the end of the buffer spring 52 away from the fixed block 51 is fixedly connected to a buffer belt 53. There are two combinations of the fixed block 51 and the buffer spring 52, and the two ends of the buffer belt 53 are respectively fixedly connected to the two buffer springs 52. The soft water pipe 454 is located between the support 2 and the buffer belt 53. The buffer belt 53 limits the soft water pipe 454 to prevent people from walking and pulling the hard water pipe 451 to move a large range, thereby avoiding ineffective drainage.

[0028] Working principle: The operator first takes out the filter device 48, places the protrusion of the filter device 48 inside the vertical groove 452, and then pushes the connecting rod 46 into the hard water pipe 451, so that the connecting rod 46 drives the support rod 47 and the filter device 48 to move into the hard water pipe 451. At this time, the protrusion slides inside the vertical groove 452 until it enters the annular groove 453. Then the operator rotates the connecting rod 46 again, so that the connecting rod 46 drives the filter device 48 to rotate. At this time, the protrusion is away from the vertical groove 452 and is confined inside the annular groove 453. Therefore, the filter device 48 is confined inside the hard water pipe 451, and at this time, the rotating rod 43 abuts against the bottom end of the connecting rod 46 under the action of the elastic force of the tension spring 44, so that the bottom of the connecting rod 46 is supported and will not fall down.

[0029] Then, the soft water pipe 454 is connected to the water pump, and the bottom end of the hard water pipe 451 is placed inside the drainage trough 3. Then, the soft water pipe 454 is passed through between the buffer zone 53 and the support 2 so that the top is placed inside the water collection well 6. The water that has infiltrated the bottom of the foundation pit 1 is extracted by driving the water pump. During the pumping process, if there are large pieces of impurities moving with the water flow, the impurities will be blocked by the filter device 48 and cannot enter the hard water pipe 451, so as to avoid the impurities clogging the hard water pipe 451 and affecting the drainage efficiency.

[0030] When the operator needs to clean the filter device 48, the bottom of the hard water pipe 451 can be taken out from the inside of the drain trough 3 first, and then the connecting rod 46 can be rotated to drive the filter device 48 to rotate until the protrusion rotates to the inside of the vertical groove 452 along with the filter device 48. At this time, the connecting rod 46 is pulled downwardly from the hard water pipe 451 to separate the filter device 48 from the hard water pipe 451. At this time, the hard water pipe 451 can be cleaned. After cleaning, the filter device 48 can be installed in the same way.

[0031] During the pumping process, if a person walks and pulls the hard water pipe 451, the buffer belt 53 is tightly attached to the surface of the soft water pipe 454 under the action of the elastic force of the buffer spring 52. Therefore, there is a large friction between the buffer belt 53 and the soft water pipe 454, thereby preventing the soft water pipe 454 from being pulled by the hard water pipe 451 and moving a large range, thereby preventing the pumping process from being affected.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A deep foundation pit support structure, characterized in that: The invention comprises a foundation pit (1), wherein a support (2) is arranged inside the foundation pit (1), a drainage groove (3) is provided at the bottom of the foundation pit (1), a drainage component (4) is provided inside the foundation pit (1), a limiting component (5) is provided on the surface of the support (2), and a water collection well (6) is provided at the top of the foundation pit (1); The drainage assembly (4) comprises a fixing ring (41) fixedly mounted on the surface of the support (2); a vertical rod (42) is fixedly mounted on the bottom end of the fixing ring (41); a rotating rod (43) is rotatably connected to the bottom end of the vertical rod (42); a tension spring (44) is fixedly connected to the bottom end of the vertical rod (42); a drainage device (45) is arranged inside the fixing ring (41); a connecting rod (46) is arranged at the bottom of the drainage device (45); a supporting rod (47) is fixedly connected to the top end of the connecting rod (46); and a filtering device (48) is fixedly mounted on the top end of the supporting rod (47).

2. A deep foundation pit support structure according to claim 1, characterized in that: The side of the rotating rod (43) away from the vertical rod (42) abuts against the bottom end of the connecting rod (46), and the bottom end of the tension spring (44) is fixedly connected to the top of the rotating rod (43).

3. A deep foundation pit support structure according to claim 1, characterized in that: The drainage device (45) comprises a hard water pipe (451) sleeved inside the fixing ring (41), a vertical groove (452) is provided at the bottom of the inner wall of the hard water pipe (451), an annular groove (453) is provided on the inner wall of the hard water pipe (451), and a soft water pipe (454) is sleeved on the surface of the top end of the hard water pipe (451).

4. A deep foundation pit support structure according to claim 3, characterized in that: The connecting rod (46) is rotatably connected to the bottom of the hard water pipe (451), and the filtering device (48) is composed of a circular filter and two protrusions, the two protrusions are symmetrically fixedly installed on both sides of the circular filter, the circular filter is slidably connected to the inside of the hard water pipe (451), and the protrusions are adapted to be slidably connected to the vertical groove (452) and the annular groove (453).

5. A deep foundation pit support structure according to claim 3, characterized in that: The limiting component (5) comprises a fixing block (51) fixedly mounted on the surface of the support (2); an end of the fixing block (51) away from the support (2) is fixedly connected to a buffer spring (52); and an end of the buffer spring (52) away from the fixing block (51) is fixedly connected to a buffer belt (53).

6. A deep foundation pit support structure according to claim 5, characterized in that: There are two combinations of the fixing block (51) and the buffer spring (52), the two ends of the buffer belt (53) are respectively fixedly connected to the two buffer springs (52), and the soft water pipe (454) is located between the support (2) and the buffer belt (53).

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