Soft soil foundation pit support device

Abstract

The utility model discloses a soft soil foundation pit support device. Comprising an annular plate, a plurality of mounting holes formed in the annular plate, inserting columns movably connected to the mounting holes, a fixing plate arranged on the outer side of the annular plate, a lifting assembly arranged on the fixing plate and a mounting plate arranged on the lifting assembly. And the driving assembly is arranged on the mounting plate and is connected with the upper end of the inserting column to drive the inserting column to rotate. The lifting assembly and the driving assembly respectively drive the insertion column to ascend, descend and rotate to achieve the effect of fixing the device, the lifting assembly and the driving assembly can work independently, the structure is simple, the abrasion degree of the structure is small, the service life of the device is prolonged, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction technology, concretely relates to a soft soil foundation pit support device. BACKGROUND

[0002] The foundation pit is the soil pit excavated according to the foundation design position, the foundation bottom elevation and the foundation plane size, before excavation, the excavation scheme is decided according to the geological and hydrological data, combined with the situation of the nearby buildings, and the waterproof and drainage work is done well. At present, anchor piles are driven into the foundation pit, and after the pile test is completed, the anchor piles can generally be used for engineering, instead of engineering piles, in this process, the support structure is often used to support the anchor pile, the existing support structure has good use effect, but part of the existing support structure is only placed in the foundation pit to support and protect the anchor pile, if the heavy anchor pile is inclined, the good supporting effect cannot be achieved.

[0003] The prior art such as the file with the authorized announcement number CN216586582U discloses a support structure suitable for soft soil foundation pit, which comprises a guard plate, the inner surface of the guard plate is movably connected with an anchor pile, the bottom of the guard plate is fixedly connected with a plurality of annular pipes, the inner surfaces of the annular pipes are movably inserted with a plurality of insertion columns, the inner walls of the annular pipes are all provided with sliding grooves, the outer surfaces of the insertion columns are all fixedly connected with sliding rods, the sliding rods are respectively connected with the annular pipes through the sliding grooves, the guard plate is provided with perforations, the insertion columns are movably connected with the guard plate through the perforations, and the top of the guard plate is fixedly connected with a plurality of supporting rods.

[0004] The working principle of the above structure is as follows: the motor is started, the rotation of the shaft rod is driven by the motor, the rotation of the shaft rod drives the rotation of the first bevel gear, the rotation of the first bevel gear drives the rotation of the second bevel gear, the rotation of the second bevel gear drives the rotation of the threaded rod, at this time, the rotation of the threaded rod drives the downward movement of the insertion column, thereby driving the insertion of the insertion pin into the soil, with the rotation of the threaded rod, the insertion column gradually enters the soil, thereby realizing the fixed installation of the whole device. After the device is fixed, the bolts are unscrewed from the supporting plate, so that the motor can be removed, and finally the anchor pile is driven into the soil.

[0005] However, the device still has the following problems: the upper end of the insertion column is connected with the bevel gear through the threaded rod, and the rotation and displacement are carried out at the same time, which requires high precision of the engagement of the threaded rod and the bevel gear; at the same time, since the threaded rod is subjected to a large pressure from the ground, the pressure at the engagement of the threaded rod and the bevel gear is large, and the wear degree is serious, which affects the overall service life of the device. UTILITY MODEL CONTENTS

[0006] In view of the above problems, the utility model discloses a kind of soft soil foundation pit retaining devices, and the effect of fixing device is achieved by lifting assembly and driving assembly respectively driving column lifting and rotating, and lifting assembly and driving assembly can work independently, simple structure, the wear degree of structure is small, improve the service life of device, and practicality is strong.

[0007] In order to achieve the above object, the technical scheme of the utility model is as follows:

[0008] A kind of soft soil foundation pit retaining device, including annular plate, several installation holes being arranged on the annular plate, movable connection on the installation hole on the column, fixed plate being arranged on the outer side of the annular plate, lifting assembly being arranged on the fixed plate, mounting plate being arranged on the lifting assembly, and driving assembly being arranged on the mounting plate and being connected with the upper end of the column to drive the column rotation.

[0009] As a further preferred embodiment of the utility model, the driving assembly includes a mounting slot provided on the lower surface of the mounting plate, a rotating motor provided in the mounting slot, a mounting base connected to the output end of the rotating motor, and an internal threaded groove provided on the lower surface of the mounting base; the upper end of the column has an external threaded segment that matches the internal threaded groove.

[0010] As a further preferred embodiment of the utility model, the lifting assembly includes a drive motor provided on one end of the fixed plate, a drive screw provided on the output end of the drive motor, a first plate body screwed on the drive screw, a guide rod provided on the other end of the fixed plate and parallel to the drive screw, a second plate body movably connected to the guide rod, and two connecting plates respectively provided on the first plate body and the second plate body and respectively connected to the two ends of the mounting plate.

[0011] As a further preferred embodiment of the utility model, the connecting plate is fixedly connected to the mounting plate, and the mounting plate is provided with an opening hole matching the inner hole of the annular plate.

[0012] As a further preferred embodiment of the utility model, the connecting plate is a clamp movably connected to the mounting plate.

[0013] As a further preferred embodiment of the utility model, the connecting plate includes two parallel clamping plates, a hinge screw provided on the same side of the two clamping plates and penetrating the first plate body or the second plate body, a first nut screwed on the hinge screw and used for fixing the two clamping plates, a connecting screw provided on the other side of the two clamping plates, and a second nut screwed on the connecting screw and respectively located on the two sides of the two clamping plates; the mounting plate is provided with a through hole through which the connecting screw penetrates.

[0014] As a further preferred embodiment of the present application, a limiting block is arranged on the end of the driving screw rod and the guide rod.

[0015] As a further preferred embodiment of the present application, the mounting base comprises a first seat body with the internal thread groove, a connecting column arranged on the side of the first seat body away from the insertion column, a second seat body connected with the output end of the rotating motor, and a groove arranged on the second seat body and movably connected with the connecting column.

[0016] As a further preferred embodiment of the present application, the mounting base further comprises a ball arranged on the inner wall of the groove.

[0017] As a further preferred embodiment of the present application, the lower end of the insertion column has a pointed end. BRIEF DESCRIPTION OF DRAWINGS

[0018] FIG. 1 is a structural schematic diagram of the present application embodiment 1. Figure 1

[0019] FIG. 2 is a structural schematic diagram of the present application embodiment 2. Figure 2

[0020] FIG. 3 is a structural schematic diagram of the connecting plate in the present application embodiment 2. Figure 3

[0021] FIG. 4 is a connecting structure schematic diagram of the present application under the perspective angle. Figure 4

[0022] BRIEF DESCRIPTION OF DRAWINGS: anchor pile a, annular plate 11, mounting hole 12, insertion column 13, fixed plate 14, lifting assembly 15, mounting plate 16, driving assembly 17;

[0023] external thread section 131, pointed end 132;

[0024] driving motor 151, driving screw rod 152, first plate body 153, guide rod 154, second plate body 155, connecting plate 156, limiting block 157;

[0025] clamping plate 156a, hinged screw rod 156b, first nut 156c, connecting screw rod 156d, second nut 156e;

[0026] opening hole 161, through hole 162;

[0027] mounting groove 171, rotating motor 172, mounting base 173, internal thread groove 174;

[0028] first seat body 173a, connecting column 173b, second seat body 173c, groove 173d, ball 173e. DETAILED DESCRIPTION ​​​​

[0029] In the description of the utility model, it needs to be understood that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right" and the like is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship commonly placed when the utility model product is used, or is the orientation or position relationship commonly understood by the person skilled in the art, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0030] In the description of the utility model, it also needs to be explained that, unless otherwise explicitly specified and limited, the terms "arrange", "connect" and the like should be understood in a broad sense, for example, "connect" can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium, or can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0031] Embodiment 1

[0032] The utility model provides a kind of soft soil foundation pit retaining device, as shown in Fig. Figure 1 It includes annular plate 11, a plurality of mounting holes 12 being arranged on the annular plate 11, plug column 13 being movably connected on the mounting hole 12, fixed plate 14 being arranged on the outer side of the annular plate 11, lifting assembly 15 being arranged on the fixed plate 14, mounting plate 16 being arranged on the lifting assembly 15, and drive assembly 17 being arranged on the mounting plate 16 and being connected with the upper end of plug column 13 to drive plug column 13 rotation.

[0033] It can be understood that the inner hole of the annular plate 11 is used for positioning the position of anchor pile a, the plug column 13 is inserted into the ground before the anchor pile a is fixed, and is used for fixing the annular plate 11 and the structure on the plate. The mounting hole 12 is annularly distributed on the annular plate 11 at certain intervals, and the number and position of the plug column 13 correspond to the mounting hole 12 one by one;The lower end of the annular plate 11 is further provided with a supporting leg, and the supporting leg is provided with a hydraulic rod, and the hydraulic rod is provided with a roller. The above structure is prior art, so this embodiment will not be described again.

[0034] In the embodiment, the lifting assembly 15 comprises a driving motor 151 arranged on one end of the fixed plate 14, a driving screw 152 arranged on the output end of the driving motor 151, a first plate body 153 screwed on the driving screw 152, a guide rod 154 arranged on the other end of the fixed plate 14 and parallel to the driving screw 152, a second plate body 155 movably connected to the guide rod 154, and two connecting plates 156 arranged on the first plate body 153 and the second plate body 155 respectively and connected to the two ends of the mounting plate 16 respectively. The connecting plate 156 is fixedly connected to the mounting plate 16, the mounting plate 16 is provided with an opening 161 matched with the inner hole of the annular plate 11, and further, the end portions of the driving screw 152 and the guide rod 154 are provided with limit blocks 157 for avoiding the mounting plate 16 from being separated, and the inner wall of the opening 161 is provided with rotating balls for reducing the friction between the mounting plate 16 and the anchor pile a.

[0035] In the embodiment, the driving assembly 17 comprises a mounting groove 171 arranged on the lower surface of the mounting plate 16, a rotating motor 172 arranged in the mounting groove 171, a mounting base 173 connected to the output end of the rotating motor 172, and an internal thread groove 174 arranged on the lower surface of the mounting base 173.

[0036] In the embodiment, the upper end of the insertion column 13 has an external thread segment 131 matched with the internal thread groove 174, and the lower end of the insertion column 13 has a pointed end 132.

[0037] The working principle of the enclosure device provided in the embodiment is as follows: first, the annular plate 11 is moved to a designated position, the driving motor 151 is started to drive the driving screw 152 to rotate, under the limitation of the guide rod 154, the first plate body 153 and the second plate body 155 jointly drive the mounting plate 16 to rise, and the upper end of the insertion column 13 movably arranged in the mounting hole 12 is connected to the internal thread groove 174 in the mounting base 173. The rotating motor 172 is started to drive the insertion column 13 to rotate, and the driving motor 151 is started to drive the driving screw 152 to reversely rotate to drive the mounting plate 16 to descend, thereby driving the pointed end 132 of the insertion column 13 to be inserted into the ground until a preset insertion depth is reached. The anchor pile a is sequentially passed through the opening 161 and the inner hole of the annular plate 11 and is driven into the ground, and the fixation of the anchor pile a is completed. Finally, the driving motor 151 is started to drive the driving screw 152 to reversely rotate again to pull out the insertion column 13, so that the whole device can be removed.

[0038] The enclosure device provided in the embodiment has the advantages that the insertion column is driven to rise and rotate by the lifting assembly and the driving assembly respectively, the two assemblies can independently work, the structure is simple, the wear degree of the structure is small, the service life of the device is improved, and the device is practical.

[0039] Embodiment 2

[0040] The difference between this embodiment and Embodiment 1 is that, as shown in Figure 2 - the connecting plate 156 is a clamp movably connected with the mounting plate 16. Figure 4 The connecting plate 156 is movably connected with the mounting plate 16.

[0041] In this embodiment, the connecting plate 156 comprises two parallel clamping plates 156a, a hinge screw 156b arranged on the same side of the two clamping plates 156a and penetrating through the first plate body 153 or the second plate body 155, a first nut 156c screwed on the hinge screw 156b and used for fixing the two clamping plates 156a, a connecting screw 156d arranged on the other side of the two clamping plates 156a, and a second nut 156e screwed on the connecting screw 156d and arranged on the other side of the two clamping plates 156a respectively; the mounting plate 16 is provided with a through hole 162 through which the connecting screw 156d penetrates.

[0042] The advantage of such arrangement is that the mounting plate 16 can be quickly disassembled and recycled after the insertion post 13 is inserted into the ground: the two clamping plates 156a are movably connected with the first plate body 153 or the second plate body 155 through the hinge screw 156b, and the other side of the clamping plate 156a is fixedly connected with the mounting plate 16 through the connecting screw 156d and the second nut 156e. After the insertion post 13 is installed, the connection between the end of the clamping plate 156a and the mounting plate 16 is released first, and then the clamping plate 156a is rotated to make the clamping plate 156a not interfere with the removal path of the mounting plate 16.

[0043] In this embodiment, the mounting base 173 comprises a first seat body 173a provided with the internal thread groove 174, a connecting column 173b arranged on the side of the first seat body 173a away from the insertion post 13, a second seat body 173c connected with the output end of the rotating motor 172, a groove 173d arranged on the second seat body 173c and movably connected with the connecting column 173b, and a ball 173e arranged on the inner wall of the groove 173d. The advantage of such arrangement is that the mounting base 173 can be disconnected with the insertion post 13.

[0044] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without departing from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A soft soil foundation pit retaining device, comprising a ring-shaped plate (11), a plurality of mounting holes (12) arranged on the ring-shaped plate (11), and a plug column (13) movably connected to the mounting holes (12), characterized in that, The fixing plate (14) is arranged outside the annular plate (11), the lifting assembly (15) is arranged on the fixing plate (14), the mounting plate (16) is arranged on the lifting assembly (15), and the driving assembly (17) is arranged on the mounting plate (16) and connected with the upper end of the plug post (13) to drive the plug post (13) to rotate.

2. A retaining device for a soft soil foundation pit according to claim 1, wherein The driving assembly (17) comprises a mounting groove (171) arranged on the lower surface of the mounting plate (16), a rotating motor (172) arranged in the mounting groove (171), a mounting base (173) connected with the output end of the rotating motor (172), and an internal thread groove (174) arranged on the lower surface of the mounting base (173); the upper end of the plug post (13) has an external thread section (131) matched with the internal thread groove (174).

3. A retaining device for a soft soil foundation pit according to claim 2, wherein The lifting assembly (15) comprises a driving motor (151) arranged on one end of the fixing plate (14), a driving screw (152) arranged on the output end of the driving motor (151), a first plate body (153) screwed on the driving screw (152), a guide rod (154) arranged on the other end of the fixing plate (14) and parallel to the driving screw (152), a second plate body (155) movably connected to the guide rod (154), and two connecting plates (156) arranged on the first plate body (153) and the second plate body (155) respectively and connected with the two ends of the mounting plate (16) respectively.

4. A retaining device for a soft soil foundation pit according to claim 3, wherein The connecting plate (156) is fixedly connected with the mounting plate (16), and the mounting plate (16) is provided with an opening (161) matched with the inner hole of the annular plate (11).

5. A retaining device for a soft soil foundation pit according to claim 3, wherein The connecting plate (156) is a clamp movably connected with the mounting plate (16).

6. A soft soil pit retaining apparatus according to claim 5, wherein The connecting plate (156) comprises two clamping plates (156a) arranged in parallel, a hinge screw (156b) arranged on the same side of the two clamping plates (156a) and penetrating the first plate body (153) or the second plate body (155), a first nut (156c) screwed on the hinge screw (156b) and used for fixing the two clamping plates (156a), a connecting screw (156d) arranged on the other side of the two clamping plates (156a), and a second nut (156e) screwed on the connecting screw (156d) and arranged on the two sides of the two clamping plates (156a) respectively; the mounting plate (16) is provided with a through hole (162) through which the connecting screw (156d) penetrates.

7. A retaining device for a soft soil foundation pit according to claim 3, wherein Limiting blocks (157) are arranged on the ends of the driving screw (152) and the guide rod (154).

8. A retaining device for a soft soil foundation pit according to claim 5, wherein The mounting base (173) comprises a first seat body (173a) with the internal thread groove (174), a connecting column (173b) arranged on a side of the first seat body (173a) away from the insertion column (13), a second seat body (173c) connected with an output end of the rotating motor (172), and a recess (173d) arranged on the second seat body (173c) and movably connected with the connecting column (173b).

9. A soft soil pit retaining apparatus according to claim 8, wherein The mounting base (173) further comprises a ball (173e) arranged on an inner wall of the recess (173d).

10. The retaining structure for soft soil foundation pit according to claim 1, characterized in that, The insertion column (13) has a pointed end (132) at a lower end.

Images