Cast-in-situ bored pile deflection monitoring device based on robot vision technology

Abstract

The utility model belongs to the technical field of monitoring devices for building construction, and particularly relates to a cast-in-situ bored pile deflection monitoring device based on a robot vision technology. The utility model provides a cast-in-situ bored pile deflection monitoring device based on a robot vision technology, which is characterized in that a range finder, a counterweight leveling bottom plate unit, an annular lifting plate unit, a vertical groove and a frame body unit with a cover are arranged on a circular cylinder, so that 1, the range finder on the frame body unit with the cover can be used for monitoring the deflection of a cast-in-situ bored pile; a covering protection effect can be achieved for the robot vision technology related equipment and a computer possibly installed on the counterweight leveling bottom plate unit, and the robot vision technology related equipment is prevented from being damaged by a falling object; 2, the counterweight leveling bottom plate unit has active leveling and leveling monitoring functions, so that the device can obtain a continuous and sufficient horizontal state;

Description

Technical Field

[0001] The utility model belongs to the technical field of monitoring devices for building construction, and in particular relates to a bored cast-in-place pile deflection monitoring device based on robot vision technology. Background Art

[0002] Robot vision technology refers to an advanced computer technology that can capture and display the image information of three-dimensional objects. Generally, the hardware of this technology includes at least an image processing device, a computer, a camera, and a distance sensor. Therefore, it can generally capture and display the following parameters of three-dimensional objects: size, distance, brightness, and color.

[0003] During the construction process, generally only the basic functions of robot vision technology are needed. That is, after being equipped with distance sensors and computers, various distance parameters in the construction process are monitored in real time to ensure that the construction structure is set to horizontal or vertical as needed.

[0004] On the other hand, the bored pile process mainly includes the following steps in sequence: installing a distance sensor near the pile pit location; driving the steel casing into the soil, monitoring its verticality in real time and correcting the vertical state; after the steel casing is driven vertically into the required depth, breaking and removing the soil inside it; lowering the steel cage and pouring concrete, and waiting for the concrete to solidify and take shape, the above-mentioned bored pile structure is obtained.

[0005] Therefore, the aforementioned deflection monitoring device needs to be installed in advance to monitor and provide timely feedback on the vertical status parameters of the steel casing in real time. Furthermore, the device itself has at least the following requirements: first, the driving action of the steel casing cannot damage the device; second, the relatively expensive distance sensor and computer must be securely installed and used safely within the device and also be protected from knocks and scrapes.

[0006] For example, a Chinese utility model patent with authorization announcement number CN218933105U and authorization announcement date 2023.04.28 discloses a bored cast-in-place pile steel casing deflection monitoring device, including a cylinder: having a channel adapted to the outer diameter of the steel casing; a distance measuring component: used to measure the distance between the inner wall of the cylinder and the outer wall of the steel casing; a fixing component: used to fix the cylinder on the ground; a leveling component: used to place the cylinder horizontally; a positioning rod: inserted vertically into the soil, and the positioning rod is placed coaxially with the pile foundation hole to be formed.

[0007] The deflection monitoring device in this utility model patent has the following general advantages: simple structure, easy to use, easy to process and manufacture, and small footprint. It can effectively solve the technical problem of difficult to ensure pile position and verticality in the installation of steel casing in the existing technology.

[0008] However, during the actual use of this skew monitoring device, there are at least the following two deficiencies, which are also the technical problems to be solved by this utility model, namely:

[0009] First, its fixing part can only provide a basic non-dropping effect and cannot fully protect the rangefinder on the fixing part. When the steel casing is being knocked, accidental falling objects that cannot be completely avoided are likely to damage the rangefinder;

[0010] Second, the horizontal support effect provided by its positioning rod structure is not stable enough. As long as one of the positioning rods is not firmly inserted, the entire device is prone to tilting, resulting in a significant reduction in the accuracy of the final ranging data.

[0011] Therefore, in summary, there is an urgent need for a new device in which the equipment used in robot vision technology can be fully protected and its own horizontal state is stable, so as to be used for real-time skew monitoring of the insertion action of the steel casing, and ultimately ensure that the steel casing can be inserted and installed fully vertically, improving the construction quality of bored cast-in-place piles. Content of the Utility Model

[0012] This utility model provides a skew monitoring device for bored cast-in-place piles based on robot vision technology. By setting a rangefinder, a counterweight leveling bottom plate unit, an annular lifting plate unit, a vertical groove, and a covered frame body unit on a circular cylinder, the following can be achieved: 1. The rangefinder on the covered frame body unit and the computer that may be installed on the counterweight leveling bottom plate unit can both obtain coverage protection effects, avoiding the equipment related to the above robot vision technology from being damaged by falling objects; 2. The counterweight leveling bottom plate unit has its own active leveling and leveling monitoring functions, ensuring that the device obtains a continuous and sufficient horizontal state.

[0013] The technical solution adopted by this utility model to solve the above problems is: A skew monitoring device for bored cast-in-place piles based on robot vision technology, the structure includes a rangefinder and a circular cylinder, and also includes a counterweight leveling bottom plate unit arranged at the lower end position of the circular cylinder, an annular lifting plate unit arranged on the outer ring surface of the circular cylinder and used to cover and protect the counterweight leveling bottom plate unit, a vertical groove arranged on the upper end surface of the circular cylinder, and a covered frame body unit arranged on the vertical groove and used to install the rangefinder.

[0014] A further preferred technical solution lies in that: An annular plate unit for covering and protecting all the covered frame body units is also arranged on the upper end surface of the circular cylinder.

[0015] A further preferred technical solution lies in that: The counterweight leveling bottom plate unit includes an annular bottom plate, a rectangular groove and a radial groove arranged on the upper surface of the annular bottom plate, a counterweight block arranged on the rectangular groove, and a spirit level arranged on the radial groove.

[0016] A further preferred technical solution lies in that: the rectangular grooves and the radial grooves are both uniformly spaced on the annular bottom plate in a circumferential arrangement, and one radial groove is provided between every two of the rectangular grooves.

[0017] A further preferred technical solution lies in that: the annular lifting plate unit includes a protruding ring provided on the outer ring surface of the circular cylinder body, and a circular ring plate provided on the upper surface of the protruding ring, sleeved with the circular cylinder body and used for covering and protecting the spirit level.

[0018] A further preferred technical solution lies in that: the annular lifting plate unit further includes a radial slot provided on the inner ring surface of the circular ring plate, and a radial protruding plate provided on the outer ring surface of the circular cylinder body, located above the protruding ring, and supporting the circular ring plate by passing through the radial slot.

[0019] A further preferred technical solution lies in that: the covered frame unit includes a radial screw provided on the vertical slot, a vertical block provided on the radial inner end of the radial screw and used for clamping the inner ring surface of the circular cylinder body, a mounting nut provided on the radial screw and used for clamping the outer ring surface of the circular cylinder body, a horizontal block provided on the vertical block and the upper surface of which is used for mounting the distance measuring instrument, and an upper cover plate provided on the vertical block and used for covering and protecting the distance measuring instrument.

[0020] A further preferred technical solution lies in that: the covered frame unit further includes an arc-shaped cushion block sleeved on the radial screw and located between the mounting nut and the circular cylinder body; the cross-sectional shape of the vertical block is a sector ring.

[0021] A further preferred technical solution lies in that: the covered frame unit further includes a U-shaped plate provided on the upper surface of the horizontal block and used for limiting and blocking the distance measuring instrument.

[0022] A further preferred technical solution lies in that: the annular plate unit includes a circular ring cover plate provided on the upper end surface of the circular cylinder body, a limiting block provided on the lower surface of the circular ring cover plate and clamping the inner ring surface of the circular cylinder body, and a holding limiting rod provided on the limiting block and inserted into the vertical slot. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the present utility model.

[0024] Figure 2 It is a schematic diagram of the usage mode of the present utility model.

[0025] Figure 3This is a schematic diagram of the position structure of the counterweight leveling bottom plate unit in the present utility model.

[0026] Figure 4 This is a schematic diagram of the positions of the spirit level and the counterweight block in the present utility model from a top-down perspective.

[0027] Figure 5 This is a schematic diagram of the usage method of temporarily lifting the circular plate in the present utility model. At this time, the number of counterweight blocks can be increased or decreased.

[0028] Figure 6 This is a schematic diagram of the position and shape of the radially grooved area in the present utility model.

[0029] Figure 7 This is a schematic diagram of the structure of the covered frame unit in the present utility model.

[0030] Figure 8 This is a schematic diagram of the position of the U-shaped plate in the present utility model from a top-down perspective.

[0031] Figure 9 This is a schematic diagram of the structure of the annular plate unit in the present utility model.

[0032] In the figure, the meanings of the various markings are as follows:

[0033] Pile pit a, steel casing b, foundation c, crushed soil material d;

[0034] Range finder 11, circular cylinder 12;

[0035] Counterweight leveling bottom plate unit 1, annular lifting plate unit 2, vertical groove 3, covered frame unit 4, annular plate unit 5;

[0036] Annular bottom plate 101, rectangular groove 102, radial groove 103, counterweight block 104, spirit level 105, protruding ring 201, circular plate 202, radial grooving 203, radially protruding plate 204, radial screw 401, vertical block 402, mounting nut 403, transverse block 404, upper cover plate 405, arc-shaped cushion block 406, U-shaped plate 407, circular ring cover plate 501, limit block 502, holding limit rod 503. Specific implementation mode

[0037] The following is only a preferred embodiment of the present utility model, and does not limit the scope of the present utility model.

[0038] As attached Figures 1-9As shown, a bored pile deflection monitoring device based on robot vision technology has a structure including a rangefinder 11 and a circular cylinder 12, a counterweight leveling base plate unit 1 arranged at the lower end of the circular cylinder 12, an annular lifting plate unit 2 arranged on the outer ring surface of the circular cylinder 12 and used to cover and protect the counterweight leveling base plate unit 1, a vertical groove 3 arranged on the upper end surface of the circular cylinder 12, and a covered frame unit 4 arranged on the vertical groove 3 and used to install the rangefinder 11.

[0039] In this embodiment, the distance meter 11 is a commercially available product, which can be connected to the computer by wire or wirelessly. There are at least four distance meters 11, that is, the maximum central angle between any two of them is 90°.

[0040] The general principle of the above-mentioned deflection monitoring function is as follows: the four distance meters 11 detect the distance between them and the outer ring surface of the steel casing b in real time. When a large difference occurs between the above-mentioned four distance values, it is determined that the deflection is excessive, and then the insertion angle of the steel casing b is indicated and adjusted until the above-mentioned difference is reduced to the allowable range again. The above-mentioned correction operation continues until the insertion depth of the steel casing b reaches the preset required position.

[0041] During the entire downward insertion process of the steel casing b, its central axis always completely coincides with the central axis of the circular cylinder 12, or the deviation is within the allowable range of the design process. Of course, the above function is premised on the verticality of the circular cylinder 12 itself, which is the role of the counterweight leveling base unit 1. It is always perpendicular to the circular cylinder 12. When the counterweight leveling base unit 1 is adjusted to a horizontal state and maintained, the circular cylinder 12 can be fully and continuously vertical.

[0042] Furthermore, the "lift" on the annular lifting plate unit 2 means that when the counterweight leveling base unit 1 is leveling, it is raised so that it is less likely to affect the leveling operation. After the counterweight leveling base unit 1 completes the leveling operation, it is lowered to cover and protect the relatively valuable equipment on the counterweight leveling base unit 1. The relatively valuable equipment at least includes level detection equipment and a possible computer.

[0043] Finally, the covered frame unit 4, after being matched with the vertical slot 3, has the following functions and advantages:

[0044] First, the vertical slots 3 are pre-opened and evenly spaced in the circumferential direction, and the installation height of the rangefinder 11 is determined vertically. Therefore, after the covered frame unit 4 and the rangefinder 11 are correctly installed on the vertical slots 3, the rangefinder 11 is correctly installed.

[0045] Second, the cover-mounted frame unit 4 has its own cover to prevent falling objects from damaging the rangefinder 11.

[0046] Third, the cover-mounted frame unit 4 engages with the inner and outer annular surfaces of the circular cylinder 12, making the rangefinder 11 itself vertical and avoiding unnecessary pitch angles that would introduce large errors in the ranging data.

[0047] Fourth, after the cover-mounted frame unit 4 is appropriately loosened, it can be easily lifted upward and disassembled on the vertical groove 3, which is very efficient and practical.

[0048] An annular plate unit 5 for covering and protecting all the cover-mounted frame units 4 is also provided on the upper end surface of the circular cylinder 12.

[0049] In this embodiment, the main function of the annular plate unit 5 is to supplement and strengthen the covering and protecting effect of the cover structure of the cover-mounted frame unit 4 on the rangefinder 11.

[0050] Secondly, it is to increase the difficulty of the cover-mounted frame unit 4 accidentally separating and falling upward from the vertical groove 3, avoiding the loss or crash of the rangefinder 11.

[0051] The weight-adjusting and leveling bottom plate unit 1 includes an annular bottom plate 101, a rectangular groove 102 and a radial groove 103 provided on the upper surface of the annular bottom plate 101, a weight 104 provided in the rectangular groove 102, and a spirit level 105 provided in the radial groove 103.

[0052] In this embodiment, the annular bottom plate 101 is circular in shape, the long side direction of the rectangular groove 102 is the chordal or radial direction of the annular bottom plate 101, the weight 104 is an iron block or a brick, and the spirit level 105 is a commercially available product with a rectangular shape and a long strip shape.

[0053] On the other hand, the main method for the annular bottom plate 101 to obtain a horizontal state is to level the foundation area below it as much as possible, and the secondary method is to increase or decrease the number of weights 104 in the rectangular groove 102 at different positions, thereby compacting small protrusions in the above-mentioned foundation area and finally leveling the annular bottom plate 101.

[0054] Therefore, correspondingly, the main function of the weight 104 is to press down the circular cylinder 12 that has been adjusted to be vertical, that is, the entire deflection monitoring device, and its secondary function is to participate in the operation of adjusting the circular cylinder 12 to be vertical.

[0055] The rectangular grooves 102 and radial grooves 103 are evenly spaced apart in a circumferential arrangement on the annular bottom plate 101 , and one radial groove 103 is provided between every two rectangular grooves 102 .

[0056] In this embodiment, as shown in the attached Figure 4 As shown, the rectangular slots 102 and radial slots 103 can be set to four, and all are separated and arranged to ensure that the taking and placing action of the counterweight block 104 will not be performed above the level 105, avoiding accidental crushing of the level 105.

[0057] Moreover, after the device is leveled, the four symmetrically arranged stacks of counterweights 104 will not significantly affect its horizontal state, even if there is a slight difference in the number of counterweights 104 in the four stacks.

[0058] On the other hand, during the downward insertion of the steel casing b, no further operation is performed on the counterweight leveling base plate unit 1. If the deflection monitoring device is accidentally bumped and significantly deflected, the insertion of the steel casing b is immediately stopped. The device should be adjusted to a vertical state and a central axis overlap state before continuing to insert the steel casing b.

[0059] The annular lifting plate unit 2 includes a protruding ring 201 provided on the outer ring surface of the circular cylinder 12 , and an annular plate 202 provided on the upper surface of the protruding ring 201 , sleeved with the circular cylinder 12 , and used to cover and protect the level 105 .

[0060] In this embodiment, the protruding ring 201, the circular cylinder 12 and the annular base plate 101 are integrally formed, and the outer diameter of the annular plate 202 is greater than or equal to the annular base plate 101, ensuring that all the spirit levels 105 and computers that may be installed on the annular base plate 101 can be covered by the annular plate 202, otherwise falling objects can easily damage the spirit levels 105 and computers.

[0061] The annular lifting plate unit 2 also includes a radial groove 203 arranged on the inner ring surface of the annular plate 202, and a radial protruding plate 204 arranged on the outer ring surface of the circular cylinder 12, located above the protruding ring 201, and passing through the radial groove 203 to support the annular plate 202.

[0062] In this embodiment, when the circular ring plate 202 is mounted on the protruding circular ring 201, the vertical distance between it and the annular bottom plate 101 is 30-50 cm, so that the covering and protection effect of the circular ring plate 202 is more comprehensive and direct. If its position is too high, it lacks sufficient protection against gravel thrown at an angle.

[0063] When the circular plate 202 is placed on the radially protruding plate 204, the vertical distance between it and the annular bottom plate 101 is > 70 cm. This is a temporary state, generally used for placing and removing the counterweight 104 and the spirit level 105.

[0064] Among them, before the circular plate 202 needs to establish and release the placement state on the radially protruding plate 204, the former needs to rotate appropriately by itself, so that the radially protruding plate 204 can pass through the radial slot 203.

[0065] The covered frame unit 4 includes a radial screw 401 arranged on the vertical slot 3, a vertical block 402 arranged at the radially inner end of the radial screw 401 and used for clamping the inner ring surface of the circular cylinder 12, a mounting nut 403 arranged on the radial screw 401 and used for clamping the outer ring surface of the circular cylinder 12, a transverse block 404 arranged on the vertical block 402 and whose upper surface is used for mounting the rangefinder 11, and an upper cover plate 405 arranged on the vertical block 402 and used for covering and protecting the rangefinder 11.

[0066] In this embodiment, the vertical block 402, the transverse block 404 and the upper cover plate 405 together form a vertical "U shape" for mounting and protecting the rangefinder 11.

[0067] The diameter of the radial screw 401 is adapted to the width of the vertical slot 3, so that after the covered frame unit 4 is inserted downward into the vertical slot 3, it is not easy to shift left and right. Finally, the mounting nut 403 is tightened, and the rangefinder 11 can be stably installed.

[0068] Among them, the number of the radial screws 401 is two, which are arranged one above the other.

[0069] The covered frame unit 4 further includes an arc-shaped cushion block 406 sleeved on the radial screw 401 and located between the mounting nut 403 and the circular cylinder 12; the cross-sectional shape of the vertical block 402 is a sector ring.

[0070] In this embodiment, the cross-sectional shape of the arc-shaped cushion block 406 is also a sector ring, and a vertical plane is cut on its outer ring surface for more firmly tightening the mounting nut 403.

[0071] The main material of the covered frame unit 4 is rubber, and the material of the circular cylinder 12 is steel.

[0072] The covered frame unit 4 further includes a U-shaped plate 407 arranged on the upper surface of the transverse block 404 and used for limiting and blocking the rangefinder 11.

[0073] In this embodiment, the rangefinder 11 is screwed to the transverse block 404 or directly placed on the upper surface of the latter. The vertical dimension of the U-shaped plate 407 is relatively small to avoid blocking the ranging laser of the rangefinder 11.

[0074] The U-shaped plate 407 is made of rubber with medium elasticity and is used to fully and appropriately press the rangefinder 11 against the vertical block 402 to prevent the rangefinder 11 from shifting or falling.

[0075] The annular plate unit 5 includes a circular cover plate 501 arranged on the upper end surface of the circular cylinder 12, a limit block 502 arranged on the lower surface of the circular cover plate 501 and engaged with the inner ring surface of the circular cylinder 12, and a gripping limit rod 503 arranged on the limit block 502 and inserted into the vertical groove 3.

[0076] In this embodiment, the main function of the annular cover plate 501 is to supplement the covering and protecting effect of the upper cover plate 405 on the rangefinder 11 . One annular cover plate 501 can protect all the rangefinders 11 .

[0077] The limit block 502 and the holding limit rod 503 together form a "T-shaped" structure, in order to engage the vertical groove 3 and the inner annular surface of the circular cylinder 12, and ultimately prevent the annular cover plate 501 from lateral movement and circumferential rotation.

[0078] Of course, the circumferential rotation action has no influence or harm on the above-mentioned supplementary protection effect. The main purpose of preventing the annular cover plate 501 from rotating in the circumferential direction is to reduce its wear rate.

[0079] When the rangefinder 11 and the covered frame unit 4 are disassembled, the annular plate unit 5 needs to be removed first. At this time, the gripping limit rod 503 is in the protruding gripping position, making the removal action relatively labor-saving.

[0080] On the other hand, the gripping limiting rod 503 appropriately presses down the upper radial screw 401 , thereby reinforcing the covered frame unit 4 .

[0081] While the embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited to the embodiments described above. Various modifications are possible within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. These modifications are non-inventive and are protected by patent law as long as they fall within the scope of the claims of the present invention.

Claims

1. A deviation monitoring device for bored cast-in-place piles based on robot vision technology, the structure includes a rangefinder (11) and a circular cylinder (12), and is characterized in that: It further includes a counterweight leveling bottom plate unit (1) arranged at the lower end position of the circular cylinder body (12), an annular lifting plate unit (2) arranged on the outer ring surface of the circular cylinder body (12) and used for covering and protecting the counterweight leveling bottom plate unit (1), a vertical groove (3) arranged on the upper end surface of the circular cylinder body (12), and a covered frame body unit (4) arranged on the vertical groove (3) and used for installing the rangefinder (11).

2. The deflection monitoring device for bored cast-in-place piles based on robot vision technology according to claim 1, characterized in that: An annular plate unit (5) for covering and protecting all the covered frame body units (4) is further arranged on the upper end surface of the circular cylinder body (12).

3. The deflection monitoring device for bored cast-in-place piles based on robot vision technology according to claim 1, characterized in that: The counterweight leveling bottom plate unit (1) includes an annular bottom plate (101), a rectangular groove (102) and a radial groove (103) arranged on the upper surface of the annular bottom plate (101), a counterweight block (104) arranged on the rectangular groove (102), and a spirit level (105) arranged on the radial groove (103).

4. The deflection monitoring device for bored cast-in-place piles based on robot vision technology according to claim 3, characterized in that: Both the rectangular groove (102) and the radial groove (103) are evenly spaced in a circumferential arrangement on the annular bottom plate (101), and 1 radial groove (103) is arranged between every two rectangular grooves (102).

5. The deviation monitoring device for bored cast-in-place piles based on robot vision technology according to claim 3, characterized in that: The annular lifting plate unit (2) includes a protruding ring (201) arranged on the outer ring surface of the circular cylinder body (12), and a circular ring plate (202) arranged on the upper surface of the protruding ring (201), sleeved with the circular cylinder body (12) and used for covering and protecting the spirit level (105).

6. The deviation monitoring device for bored cast-in-place piles based on robot vision technology according to claim 5, characterized in that: The annular lifting plate unit (2) further includes a radial slotted opening (203) arranged on the inner ring surface of the circular ring plate (202), and a radial protruding plate (204) arranged on the outer ring surface of the circular cylinder body (12), at a position above the protruding ring (201), and used for supporting the circular ring plate (202) by passing through the radial slotted opening (203).

7. A deflection monitoring device for bored cast-in-place piles based on robot vision technology according to claim 1, characterized in that: The covered frame body unit (4) includes a radial screw (401) arranged on the vertical groove (3), a vertical block (402) arranged at the radial inner end of the radial screw (401) and used for clamping the inner ring surface of the circular cylinder body (12), a mounting nut (403) arranged on the radial screw (401) and used for clamping the outer ring surface of the circular cylinder body (12), a transverse block (404) arranged on the vertical block (402) and the upper surface of which is used for installing the rangefinder (11), and an upper cover plate (405) arranged on the vertical block (402) and used for covering and protecting the rangefinder (11).

8. The deviation monitoring device for bored cast-in-place piles based on robot vision technology according to claim 7, characterized in that: The covered frame body unit (4) further includes an arc-shaped cushion block (406) sleeved on the radial screw (401) and located between the mounting nut (403) and the circular cylinder body (12); the cross-sectional shape of the vertical block (402) is a sector ring shape.

9. A deviation monitoring device for bored cast-in-place piles based on robot vision technology according to claim 7, characterized in that: The covered frame body unit (4) further includes a U-shaped plate (407) arranged on the upper surface of the transverse block (404) and used for limiting and blocking the rangefinder (11).

10. The deviation monitoring device for bored cast-in-place piles based on robot vision technology according to claim 2, wherein: The annular plate unit (5) includes an annular cover plate (501) provided on the upper end surface of the circular cylinder body (12), a limiting block (502) provided on the lower surface of the annular cover plate (501) and engaging with the inner ring surface of the circular cylinder body (12), and a holding limiting rod (503) provided on the limiting block (502) and inserted into the vertical groove (3).

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