Deep foundation pit reinforced anchoring device with thin anchor rod popping and withdrawing functions

Abstract

The utility model relates to a deep foundation pit reinforced anchoring device with the function of popping up and withdrawing a thin anchor rod. The deep foundation pit reinforced anchoring device comprises a fence part and an anchoring part. According to the deep foundation pit reinforced anchoring device with the function of popping up and withdrawing the thin anchor rod, the thin anchor rod which can be popped up and withdrawn is arranged, and further anchoring of a soil body is achieved; a sliding rod sleeve and a long spring assembly are arranged, and it is guaranteed that after the main anchor rod is embedded into a foundation pit soil body, the thin anchor rod can be rapidly ejected out to conduct reinforced anchoring on the soil body; and a motor gear assembly is arranged, and the function that the thin anchor rod is recycled into the main anchor rod again is achieved through the meshing effect between sawteeth. The deep foundation pit reinforced anchoring device with the function of popping up and withdrawing the thin anchor rod is easy to manufacture, convenient to operate and easy to use and master by workers.

Description

Technical Field

[0001] The utility model relates to the field of geotechnical engineering construction, in particular to a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods. Background Art

[0002] Deep foundation pit refers to a deep engineering pit excavated underground or below the surface, usually with a depth of more than 5 meters, used to build underground structures such as subway stations, underground parking lots, underground shopping malls and various pipeline facilities. Deep foundation pits have high requirements for stability and usually require the design and construction of solid support structures to ensure the stability of the foundation pit and the surrounding soil. At the same time, the deformation of the soil and support structure during the excavation and support of the foundation pit must be strictly controlled to prevent the foundation pit from collapsing and damage to surrounding buildings. Deep foundation pit engineering has become a major difficulty in engineering construction due to its complex construction, high stability requirements, great environmental impact, high construction risks and high technical requirements. It requires scientific design, strict construction and a complete monitoring system. Anchor support is a support technology used to stabilize slopes, foundation pits and other soil and rock structures. By inserting anchor rods into the soil or rock mass and generating friction and bonding between the end of the anchor rod and the surrounding materials, the overall stability of the supported structure is enhanced. Using anchor rods as the main load-bearing elements, one end of the anchor rod is fixed in a stable soil or rock layer, and the other end is fixed to the soil or structure surface that needs to be supported through pads and nuts. Anchor rods can withstand tension, shear force and bending moment, play a role in reinforcement, stabilization and support, or rely on bonding to combine the surrounding rock with the stable rock mass to produce a suspension effect, a composite beam effect, and a reinforcement effect to achieve the purpose of support. Anchor support has the advantages of low cost, good support effect, simple operation, flexible use, and less construction clearance, so it is widely used in foundation pits, slopes, tunnels and other underground projects.

[0003] The utility model patent with announcement number CN219908955U discloses a reinforced foundation pit anchor support structure, which includes an anchor body, a ground and a detection support structure. The anchor body is installed on the ground, and the detection support structure is installed on the anchor body. Barbs are provided on the rod to prevent the equipment from sliding and detect whether the anchor is tilted or whether the tilt angle meets the standard, so as to determine the installation of the anchor to ensure the construction requirements; the utility model patent with announcement number CN220847548U discloses an adjustable foundation pit anchor support structure, a connecting rod is fixedly connected to the rod body, a connecting sleeve is slidably sleeved on the outer side of the connecting rod, and a cone thorn is fixedly connected to the connecting sleeve. By designing the effect of the cone thorn, the overall structure of the anchor can be plugged and fixed, and the positioning effect of the overall structure of the anchor is improved by horizontal insertion of the convex thorn, so that the use of the anchor is more stable.

[0004] The above technical solution has achieved the effect of strengthening anchoring to a certain extent, but for special soils with low cohesion and strong sliding properties, only setting barbs has limited effect on soil anchoring. In addition, due to the existence of the barbs and other auxiliary structures, the anchor rod will encounter certain difficulties when inserted into the soil. At the same time, since the barbs are fixed and cannot be moved, it is also difficult to remove such anchor rods due to actual engineering needs. Therefore, there is an urgent need for a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods on the market. Utility Model Content

[0005] The utility model aims to solve the technical problems that the anchoring devices in the prior art are not highly applicable to different types of soil and are inconvenient to insert and remove from the soil, and provides a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods.

[0006] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0007] A deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods, comprising:

[0008] Steel purlin, the steel purlin is fixed on the side wall of the deep foundation pit, the middle of the steel purlin is penetrated by several cylindrical main anchor rods; the main anchor rods are arranged at a certain distance along the long side and short side of the steel purlin, the part of the main anchor rod passing through the steel purlin is embedded in the soil, and the remaining part is exposed to the outside as an anchor rod tap;

[0009] The main anchor rod, the end of the part of the main anchor rod embedded in the soil body is equipped with an anchor rod top box; the front end of the anchor rod top box is equipped with an anchor rod drill bit; the top of the anchor rod tap is equipped with a knob plate; a sliding rod is transversely passed through the center of the interior of the main anchor rod, and fixing buckles are respectively installed on both sides of the inner bottom of the main anchor rod; an annular sleeve is installed on the sliding rod; the side of the annular sleeve is connected to one end of the thin anchor rod; the other end of the thin anchor rod is installed on the inner top of the main anchor rod; the inner top of the main anchor rod near the edge is provided with an anchor Rod through hole; one end of the thin anchor rod located at the top of the main anchor rod is aligned with the anchor rod through hole; a long spring is sleeved on the sliding rod; one end of the long spring is fixed to the annular sleeve, and the other end is fixed to the inner top of the main anchor rod; thin anchor rod teeth are installed on the side of the thin anchor rod; a motor is installed at the junction of the anchor rod top box and the top of the main anchor rod; motor connecting rods are respectively installed on both sides of the motor; gears are respectively installed on the other ends of the two motor connecting rods; the gears are kept in mesh with the thin anchor rod teeth.

[0010] In the above technical solution, the annular sleeve is connected to one end of the short rod, the other end of the short rod is connected to the pulley, and one end of the thin anchor rod is connected to the pulley.

[0011] In the above technical solution, a part of the knob disk is embedded in the anchor rod tap, and several turns of tensioning spring are wound around the knob disk; two rotating shafts are symmetrically installed on the knob disk; one end of a short column is respectively connected to the two rotating shafts, and the other end of the short column is respectively overlapped at the roots of the two fixing buckles.

[0012] In the above technical solution, meshing teeth are provided on the gear, and the meshing teeth and the thin anchor rod teeth are always kept in a meshing state.

[0013] In the above technical solution, the bottom corner of the anchor rod top box is a hollowed-out slideway.

[0014] The utility model has the following beneficial effects:

[0015] The utility model discloses a reinforced anchoring device for deep foundation pits with the function of ejecting and retracting thin anchor rods. The thin anchor rods that can be ejected and retracted are provided, and the ejection and retraction of the thin anchor rods are controlled by an annular sleeve and a gear assembly, thereby solving the problems of insufficient anchoring effect of the existing reinforced anchor rods, poor universality for different soil types and inconvenient removal operation.

[0016] The utility model discloses a reinforced anchoring device for deep foundation pits with the function of popping out and retracting thin anchor rods. The device adopts a design scheme of thin anchor rods that can be popped out and retracted. Through the above-mentioned design principle, further anchoring of the soil is achieved, thus solving the problem of insufficient anchoring of the foundation pit soil by using side barbs of the anchor rods in the prior art scheme.

[0017] The utility model discloses a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods. The slide rod sleeve and the long spring assembly are designed to ensure that after the main anchor rod is embedded in the foundation pit soil, the thin anchor rod can be quickly ejected to reinforce the soil and anchor the soil. This avoids the problem that the existing reinforced anchor rods have difficulty in penetrating the soil due to the presence of structures such as barbs.

[0018] The utility model discloses a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods. A motor gear assembly is designed, and the function of retracting the thin anchor rods into the main anchor rod is realized through the meshing action between the saw teeth. This solves the problem in the prior art that it is difficult to take out the anchor rods due to actual engineering needs due to structures such as barbs.

[0019] The deep foundation pit reinforced anchoring device of the utility model has the function of ejecting and retracting the thin anchor rod, is easy to manufacture, convenient to operate, and easy for staff to use and master. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] Figure 1It is a schematic diagram of the overall structure of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods of the utility model;

[0022] Figure 2 It is a detailed schematic diagram of the anchoring part of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods of the utility model;

[0023] Figure 3 It is a cross-sectional view of the main anchor rod of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting the thin anchor rod in the ejected state of the utility model;

[0024] Figure 4 It is a schematic diagram of the connection part between the annular sleeve and the thin anchor rod of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting the thin anchor rod of the utility model;

[0025] Figure 5 It is a detailed schematic diagram of the knob plate of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting the thin anchor rod of the utility model;

[0026] Figure 6 It is a detailed schematic diagram of the meshing teeth and thin anchor rod teeth of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting the thin anchor rod of the utility model.

[0027] The reference numerals in the figures indicate:

[0028] 1-soil; 2-steel purlin; 3-main anchor rod; 4-anchor rod tap; 5-anchor rod top box; 6-anchor rod drill bit;

[0029] 7-knob plate; 8-slide rod; 9-fixing buckle; 10-annular sleeve; 11-thin anchor rod; 12-long spring;

[0030] 13-thin anchor rod teeth; 14-motor; 15-motor connecting rod; 16-gear; 17-short rod; 18-pulley;

[0031] 19-tensioning spring; 20-rotating shaft; 21-short column; 22-engaging teeth; 23-slideway; 24-anchor rod through hole. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0033] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. The present utility model is further described in detail below in conjunction with the accompanying drawings.

[0034] like Figure 1-6 As shown, the deep foundation pit reinforced anchoring device of the utility model with the function of ejecting and retracting thin anchor rods includes two parts: a blocking part and an anchoring part.

[0035] As for the enclosure part, its main body includes: steel purlin 2, which is fixed on the side wall of the deep foundation pit. The steel purlin 2 is rectangular in shape to match the shape and size of the foundation pit, and is penetrated by several cylindrical main anchor rods 3 in the middle. The main anchor rods 3 are arranged at a certain distance along the long and short sides of the steel purlin 2. The part passing through the steel purlin 2 is embedded in the soil 1, and the remaining part of the main anchor rod 3 is exposed outside the foundation pit soil 1 as the anchor rod tap 4.

[0036] As for the anchoring part, its main body includes: a main anchor rod 3, an anchor rod top box 5 is installed at the end of the part of the main anchor rod 3 embedded in the soil body 1, and an anchor rod drill bit 6 is installed at the front end of the anchor rod top box 5. The anchor rod drill bit 6 is conical to ensure that the main anchor rod 3 is drilled into the soil body 1. A knob plate 7 is installed on the outer side of the top of the anchor rod tap 4, a sliding rod 8 is transversely passed through the center of the main anchor rod 3, and fixing buckles 9 are installed on both sides of the bottom of the main anchor rod 3. An annular sleeve 10 is installed on the sliding rod 8, and the annular sleeve 10 can slide on the sliding rod 8. The fixing buckle 9 can lock and unlock the annular sleeve 10. One end of the thin anchor rod 11 is installed on the side of the annular sleeve 10, and the other end of the thin anchor rod 11 is installed on the inner top of the main anchor rod 3. An anchor rod through hole 24 is provided at the inner top of the main anchor rod 3 near the edge, and a section of the thin anchor rod 11 located at the inner top of the main anchor rod 3 is aligned with the anchor rod through hole 24, that is, the thin anchor rod 11 can enter and exit the main anchor rod 3 through the anchor rod through hole 24. A long spring 12 is sleeved on the slide bar 8, one end of the long spring 12 is fixed on the annular sleeve 10, and the other end is fixed at the inner top of the main anchor rod 3. When the annular sleeve 10 is located at the bottom of the main anchor rod 3 and is locked by the fixing buckle 9, the long spring 12 is in a stretched state. A thin anchor rod tooth 13 is installed on the side of the thin anchor rod 11, and a motor 14 is installed at the joint between the anchor rod top box 5 and the top of the main anchor rod 3. Motor connecting rods 15 are installed on both sides of the motor 14, and gears 16 are installed at the other ends of the two motor connecting rods 15, respectively, and the gears 16 always keep meshing with the thin anchor rod teeth 13. After the thin anchor rod 11 pops out, the motor 14 can control the rotation of the gear 16 through the motor connecting rod 15, and the thin anchor rod 11 is retracted into the main anchor rod 3 through the meshing action. The annular sleeve 10 is connected to one end of the short rod 17, and the other end of the short rod 17 is connected to a pulley 18. The end of the thin anchor rod 11 is connected to the pulley 18. The pulley 18 ensures that the thin anchor rod 11 rotates to a certain extent during the ejection and retraction process, thereby completing the angle change. The part of the knob disk 7 that contacts the end of the anchor rod tap 4 is embedded in the anchor rod tap 4, and several turns of tension spring 19 are wound around it. Two rotating shafts 20 are symmetrically installed on the knob disk 7. The rotating shafts 20 are respectively connected to one end of a short column 21, and the other end of the short column 21 is respectively overlapped at the root of two fixed buckles 9. After the knob disk 7 rotates, it can drive the rotating shaft 20 and the short column 21 to rotate together. After the short column 21 rotates, it still remains relatively vertical with the fixed buckle 9, and it expands outward to push the fixed buckle 9 to unlock it, and then the knob disk 7 is reset under the action of the tension spring 19. Meshing teeth 22 are provided around the gear 16, and the meshing teeth 22 and the thin anchor teeth 13 always maintain a bite state. The bottom corner of the anchor top box 5 is a hollowed-out slideway 23, which ensures that the meshing teeth 22 and the thin anchor teeth 13 are well matched.

[0037] The working principle of the deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods of the utility model is as follows:

[0038] When the thin anchor rod 11 is about to be ejected, the annular sleeve 10 is unlocked, and the knob plate 7 is turned. The knob plate 7 drives the rotating shaft 20 and the short column 21 to expand outwards and push open the fixing buckle 9. At this time, the annular sleeve 10 is pulled by the long spring 12 in a stretched state and slides forward along the slide rod 8, driving the thin anchor rod 11 to pass through the anchor rod through hole 24 and out of the main anchor rod 3. The annular sleeve 10 stops when it slides to the top of the main anchor rod 3, and the thin anchor rod 11 penetrates into the soil 1.

[0039] When the thin anchor rod 11 is to be retracted, the motor 14 is started. The motor 14 drives the gear 16 to rotate through the motor connecting rod 15. The gear 16 drives the thin anchor rod 11 to move inside the main anchor rod 3 through meshing action until the thin anchor rod 11 is completely retracted into the main anchor rod 3. At this time, the annular sleeve 10 is pushed back to the fixing buckle 9 and is re-locked by the two fixing buckles 9.

[0040] The utility model discloses a reinforced anchoring device for deep foundation pits with the function of ejecting and retracting thin anchor rods. The thin anchor rods that can be ejected and retracted are provided, and the ejection and retraction of the thin anchor rods are controlled by an annular sleeve and a gear assembly, thereby solving the problems of insufficient anchoring effect of the existing reinforced anchor rods, poor universality for different soil types and inconvenient removal operation.

[0041] The utility model discloses a reinforced anchoring device for deep foundation pits with the function of popping out and retracting thin anchor rods. The device adopts a design scheme of thin anchor rods that can be popped out and retracted. Through the above-mentioned design principle, further anchoring of the soil is achieved, thus solving the problem of insufficient anchoring of the foundation pit soil by using side barbs of the anchor rods in the prior art scheme.

[0042] The utility model discloses a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods. The slide rod sleeve and the long spring assembly are designed to ensure that after the main anchor rod is embedded in the foundation pit soil, the thin anchor rod can be quickly ejected to reinforce the soil and anchor the soil. This avoids the problem that the existing reinforced anchor rods have difficulty in penetrating the soil due to the presence of structures such as barbs.

[0043] The utility model discloses a deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods. A motor gear assembly is designed, and the function of retracting the thin anchor rods into the main anchor rod is realized through the meshing action between the saw teeth. This solves the problem in the prior art that it is difficult to take out the anchor rods due to actual engineering needs due to structures such as barbs.

[0044] The deep foundation pit reinforced anchoring device of the utility model has the function of ejecting and retracting the thin anchor rod, is easy to manufacture, convenient to operate, and easy for staff to use and master.

[0045] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods, characterized in that: include: A steel purlin (2), the steel purlin (2) being fixed on the side wall of a deep foundation pit, the middle of the steel purlin (2) being penetrated by a plurality of cylindrical main anchor rods (3); the main anchor rods (3) being arranged at a certain distance along the long side and the short side of the steel purlin (2); the portion of the main anchor rod (3) passing through the steel purlin (2) being embedded in the soil (1), and the remaining portion being exposed to the outside, serving as an anchor rod tap (4); A main anchor rod (3), wherein the end of the main anchor rod (3) embedded in the soil body (1) is provided with an anchor rod top box (5); the front end of the anchor rod top box (5) is provided with an anchor rod drill bit (6); the top end of the anchor rod tap (4) is provided with a knob plate (7); a sliding rod (8) is provided across the center of the interior of the main anchor rod (3), and fixing buckles (9) are provided on both sides of the inner bottom of the main anchor rod (3); an annular sleeve (10) is provided on the sliding rod (8); the side of the annular sleeve (10) is connected to one end of a thin anchor rod (11); the other end of the thin anchor rod (11) is installed on the inner top of the main anchor rod (3); an anchor rod through hole (24) is provided at the inner top of the main anchor rod (3) near the edge. ; one end of the thin anchor rod (11) located at the top of the main anchor rod (3) is aligned with the anchor rod through hole (24); a long spring (12) is sleeved on the sliding rod (8); one end of the long spring (12) is fixed to the annular sleeve (10), and the other end is fixed to the top of the main anchor rod (3); a thin anchor rod tooth (13) is installed on the side of the thin anchor rod (11); a motor (14) is installed at the joint between the anchor rod top box (5) and the top of the main anchor rod (3); motor connecting rods (15) are respectively installed on both sides of the motor (14); gears (16) are respectively installed on the other ends of the two motor connecting rods (15); the gears (16) are kept in meshing with the thin anchor rod teeth (13).

2. The deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods according to claim 1 is characterized in that: The annular sleeve (10) is connected to one end of a short rod (17), the other end of the short rod (17) is connected to a pulley (18), and one end of the thin anchor rod (11) is connected to the pulley (18).

3. The deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods according to claim 1 is characterized in that: A portion of the knob disk (7) is embedded in the anchor rod tap (4), and a plurality of turns of a tension spring (19) are wound around the knob disk (7); two rotating shafts (20) are symmetrically mounted on the knob disk (7); one end of a short column (21) is respectively connected to the two rotating shafts (20), and the other end of the short column (21) is respectively overlapped at the root of the two fixing buckles (9).

4. The deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods according to claim 1 is characterized in that: The gear (16) is provided with meshing teeth (22), and the meshing teeth (22) and the thin anchor rod teeth (13) are always kept in a meshing state.

5. The deep foundation pit reinforced anchoring device with the function of ejecting and retracting thin anchor rods according to claim 1 is characterized in that: The bottom corner of the anchor rod top box (5) is a hollowed-out slideway (23).

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