CN119756127A - Foundation pit depth monitoring device and monitoring method thereof - Google Patents
Foundation pit depth monitoring device and monitoring method thereof Download PDFInfo
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- CN119756127A CN119756127A CN202510258176.5A CN202510258176A CN119756127A CN 119756127 A CN119756127 A CN 119756127A CN 202510258176 A CN202510258176 A CN 202510258176A CN 119756127 A CN119756127 A CN 119756127A
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Abstract
The application belongs to the technical field of building construction monitoring, in particular to a foundation pit depth monitoring device and a monitoring method thereof, wherein the foundation pit depth monitoring device adopts a connecting device and a measuring device which are composed of a fixed base and a freely rotatable ball head, the measuring device is internally provided with a tape measure device, a tape and a heavy hammer device, the heavy hammer is internally provided with a piezoelectric sensing luminous ball, and when the heavy hammer touches the bottom of the foundation pit, the piezoelectric sensing luminous ball is pressed to emit light to prompt a measuring person to read the extension length of the tape, so that the depth of the foundation pit is accurately calculated. According to the foundation pit depth monitoring device disclosed by the application, through the design of the ball head and the fixed base, the application capability of equipment under different construction environments is enhanced, the real-time and continuous monitoring of the foundation pit depth is realized by combining the expansion and contraction of the winding measuring device and the pressed luminous feedback of the piezoelectric sensing luminous ball in the heavy hammer device, the stability of the device under a complex environment is enhanced, and the measurement accuracy can be still maintained especially under the condition that water exists at the bottom of the foundation pit.
Description
Technical Field
The invention belongs to the technical field of building construction monitoring, and particularly relates to a foundation pit depth monitoring device and a monitoring method thereof.
Background
The foundation pit is an underground space to be excavated when building construction, municipal engineering or underground building construction. In order to ensure the safety of foundation pit construction, the stability of a main underground structure and the protection of surrounding environment, an excavation scheme is determined according to geological investigation reports, surrounding building and underground facility conditions, construction conditions and related standards before the foundation pit is excavated, wherein the excavation scheme comprises an excavation method, an excavation sequence, a layered excavation depth, a slope gradient, a supporting scheme, drainage measures and the like, and the whole process relates to the cooperative work of multiple disciplines and is commonly called foundation pit engineering. The purpose of foundation pit engineering is to ensure that construction activities can be safely and smoothly performed under complex geological conditions and environmental changes, and to minimize the influence on surrounding environments and facilities.
Currently, common methods for pit depth monitoring include physical contact measurement, laser scanning measurement, optical measurement, and the like. The utility model discloses a degree of depth measuring device for foundation ditch monitoring and measuring method thereof as the patent of patent publication number CN114485456B, this degree of depth measuring device for foundation ditch monitoring includes fixed plate, monitoring host computer, fixed section of thick bamboo, regulation pole and measuring apparatu, and the measuring apparatu hangs in the foundation ditch top through adjusting the pole, has realized the global monitoring of whole foundation ditch. But this scheme is extremely easily received light, foundation ditch bottom ponding, dust, shelter from environmental factor such as thing and influence in the use, and its installation and debugging process are comparatively complicated, and the cost is higher, is unfavorable for the wide use of job site. The patent application with the publication number of CN118129599A discloses a foundation pit depth measuring device and a measuring method thereof, and designs a foundation pit depth measuring device which comprises a connecting rod mechanism, a controller, a rotary encoder, a guide wheel, a wire winding wheel, a wire body, a balancing weight, a rotating seat and a base, wherein the wire body is released or retracted through the wire winding wheel, and the length change of the wire body is utilized to measure the depth of the foundation pit. However, the wire body is easily affected by wind swing when in use, and has larger measurement error especially in construction environment with larger wind force, and in addition, when water exists at the bottom of the foundation pit, the wire body is easy to be stained with water, so that measurement is inaccurate.
Therefore, how to realize the depth monitoring of the foundation pit bottom when water exists, especially to the reliable monitoring of the shaft foundation pit depth, is a technical problem to be solved urgently by the person skilled in the art.
Disclosure of Invention
The application aims to solve the problems of large measurement error, low precision, complex installation and debugging and higher cost caused by the bad environmental influences of accumulated water, dust, shielding interference and the like at the bottom of a foundation pit in the existing foundation pit depth monitoring process, the automatic vertical placement of the monitoring instrument is realized through the freely rotating ball head connecting device, the feedback of the automatic winding tape and the built-in piezoelectric sensing luminous heavy hammer is combined, the multi-point, real-time and accurate foundation pit depth monitoring can be realized under the complex working condition, the field operation is simplified, the maintenance cost is reduced, and the construction safety and the surrounding environment protection are ensured.
In view of the above, the present invention provides a foundation pit depth monitoring device, comprising:
the connecting device comprises a fixed base and a ball head, wherein the ball head stretches into the fixed base and can rotate, and a first connecting rod is arranged below the ball head;
The winding measuring device comprises a third mounting plate, the upper end of the third mounting plate is detachably connected with a first connecting rod, one side of the third mounting plate is provided with a tape measure device, the inside of the tape measure device is provided with a tape measure wheel for winding a tape, the lower part of the tape is provided with a heavy hammer device, the inside of the heavy hammer device is provided with a piezoelectric sensing luminous ball, and the piezoelectric sensing luminous ball can be pressed to emit light after the heavy hammer device sinks to the bottom of a foundation pit.
Further, the connecting device includes:
The second connecting plate is used for detachably fixing the connecting device;
the fixed base is connected with the second connecting plate into a whole, and a space for accommodating the ball head is formed inside the fixed base;
the fixed cover is arranged below the fixed base and is detachably connected with the fixed base through a fixed bolt, and the inner surface of the fixed cover is a curved surface and is matched with the curved surface below the center line of the ball head;
and the first connecting rod is fixed on the ball head and extends downwards.
Further, the tape measure device includes:
A tape measure housing for receiving and supporting a tape measure wheel;
the tape measure wheel is provided with a reel rotating shaft at the center, the reel rotating shaft penetrates through the tape measure housing and can rotate relative to the tape measure housing under the action of external force, and the tape is wound on the tape measure wheel and can be wound or unwound;
and the limiting pulley is used for guiding the limiting ruler belt to extend out towards the guide opening of the tape measure device.
Further, the winding measurement device further includes:
the transmission device comprises a worm and a worm wheel, the worm is meshed with the worm wheel for transmission, a central rotating shaft is arranged at the center of the worm wheel, and the central rotating shaft can drive the reel rotating shaft to rotate under the rotation of the worm wheel;
The third driving motor is used for driving the worm to rotate;
the third driving motor, the transmission device and the tape measure device are arranged on two opposite sides of the third mounting plate.
Further, the weight device includes:
The counterweight ball is connected with the lower end of the ruler belt into a whole;
The buffer shell is concentrically arranged on the outer side of the counterweight ball and is made of transparent resin materials;
The supporting rib is arranged between the outer wall of the counterweight ball and the inner wall of the buffer shell;
an arc-shaped retainer disposed on an inner sidewall of the bottom of the buffer housing;
a return spring connected between the weight ball and the arc-shaped retainer and capable of being compressively deformed when the buffer housing contacts the ground;
The piezoelectric sensing luminous ball is arranged between the arc-shaped retainer and the counterweight ball and emits light when the reset spring is pressed and deformed.
Further, the ruler belt comprises a steel base layer, a connecting layer and a reinforcing layer, wherein a measuring mark is arranged on one side, far away from the reinforcing layer, of the steel base layer, and the section of the ruler belt is in an I-shaped arrangement.
Further, the foundation pit depth monitoring device further comprises:
A mounting base;
the supporting device is supported and fixed above the mounting base;
The sliding device comprises a first driving motor, a first guide rail unit, a first sliding seat unit, a second driving motor, a second guide rail unit and a second sliding seat unit, wherein two opposite ends of the first guide rail unit are arranged on a supporting device, the first sliding seat unit is arranged on the first guide rail unit and can horizontally slide along the first guide rail unit under the action of the first driving motor, the second driving motor and the second guide rail unit are arranged on the first sliding seat unit, the second sliding seat unit is arranged on the second guide rail unit and can horizontally slide under the action of the second driving motor, and the connecting device is arranged on the second sliding seat unit, and the length direction of the first guide rail unit and the length direction of the second guide rail unit are vertically arranged.
Further, the first sliding seat unit comprises a first mounting plate and a second mounting plate, the first mounting plate and the second mounting plate are arranged on the upper side and the lower side of the first guide rail unit, a first connecting plate is arranged on the first mounting plate and is in transmission connection with a first transmission screw rod, and the first driving motor drives the first transmission screw rod to rotate so as to drive the first connecting plate to continuously slide along the first guide rail unit.
Further, the second driving motor is arranged on the second mounting plate, the second driving motor drives the second sliding seat unit to slide along the second guide rail unit through the first driving belt, the second sliding seat unit comprises a connecting sliding plate and a connecting bottom plate, the connecting sliding plate is connected with the connecting bottom plate to form a 'ㄈ' shape, the connecting bottom plate is wrapped on the second guide rail unit, and the connecting bottom plate is detachably and fixedly connected with the connecting device.
The application also discloses a foundation pit depth monitoring method which is applied to the foundation pit depth monitoring device, and comprises the following steps:
s1, equipment installation and calibration;
The installation base is moved to a preset monitoring point at the edge of the foundation pit through the moving assembly, the wheel brake of the moving assembly is locked, the connecting device is moved to the initial position of the center of the foundation pit through the first driving motor and the second driving motor of the sliding device, and the winding measuring device naturally vertically downwards rotates through the free rotation of the ball head;
S2, winding the tape measure device and detecting the bottom of the heavy hammer;
Starting a third driving motor, decelerating and winding the tape on the tape reel through a transmission device comprising a worm and a worm wheel, driving the tape to vertically drop under the action of dead weight by a heavy hammer device, and ensuring that the tape is free from deflection by a limiting pulley;
s3, reading and calculating the depth of the foundation pit;
reading a measuring mark of a tape at a guide opening on the tape measure device, recording the extension length L of the tape, and calculating the depth of the foundation pit according to a foundation pit depth calculation formula:
H=L-Δh+Δp;
Wherein H is the depth of the foundation pit, Δh is the elevation correction value from the mounting base to the edge of the foundation pit, and Δp is the difference between the radius of the buffer shell and the radius of the counterweight ball;
S4, multipoint monitoring and sliding positioning;
starting a third driving motor to reversely wind the tape, lifting the heavy hammer device to a safe height, at the moment, extinguishing the piezoelectric sensing luminous ball, adjusting the first sliding seat unit or the second sliding seat unit through the first driving motor and/or the second driving motor, positioning the winding measuring device to the next monitoring point, and repeating the steps S2 and S3 to finish multi-point depth measurement;
s5, winding and transferring equipment;
after the depth measurement of the foundation pit is completed, a third driving motor is started to wind the tape for rewinding, after the tape is completely rewound, the worm gear and the worm are self-locked, the sliding device is reset to the initial position, the wheel brake of the moving assembly is released, and the next construction area is transferred.
Compared with the prior art, the foundation pit depth monitoring device and the monitoring method thereof have the following advantages:
(1) According to the foundation pit depth monitoring device, through the combination of the freely rotatable ball head connecting device and the vertical winding measuring device, the equipment can automatically keep a vertical state under different installation conditions, and the measuring end point can be accurately judged in real time by combining a luminous feedback mechanism when a heavy hammer touches the bottom, so that errors caused by environmental interference in the traditional method are effectively avoided, and the foundation pit depth monitoring device is particularly suitable for working conditions of bottom ponding or insufficient light.
(2) According to the foundation pit depth monitoring device, high-efficiency coverage of multipoint monitoring is realized through the cooperative design of the sliding device and the moving assembly, the whole structure is light and flexible, the foundation pit depth monitoring device is particularly suitable for being applied to a shaft foundation pit in a narrow space or in complex geology, and reliable guarantee is provided for construction safety.
Drawings
FIG. 1 is a schematic structural view of a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 2 is a schematic side view of a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 3 is a schematic left-hand view of a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 4 is a schematic side view of a second view of a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 5 is a schematic view of a partially enlarged structure of a connection between a winding measurement device and a second sliding seat unit in a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 6 is a schematic view of a partially enlarged structure of a first sliding seat unit in the foundation pit depth monitoring device according to the embodiment of the present invention;
FIG. 7 is a schematic view of a partially enlarged structure of a second driving motor in the foundation pit depth monitoring device according to the embodiment of the present invention, which is connected by a first driving belt;
FIG. 8 is a schematic structural view of an assembled connection between a winding measurement device and a connection device in a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 9 is a schematic side view of the structure shown in FIG. 8;
FIG. 10 is a schematic cross-sectional view of a connection device in a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 11 is a schematic cross-sectional view of a transmission device in a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view of a tape measure device of the foundation pit depth monitoring device according to the embodiment of the present invention;
FIG. 13 is a schematic cross-sectional view of a tape in a foundation pit depth monitoring device according to an embodiment of the present invention;
FIG. 14 is a schematic cross-sectional view of a weight device in a foundation pit depth monitoring device according to an embodiment of the present invention;
the label in the figure is:
100. A moving assembly; 200, a measuring assembly; 1, mounting a base; 2, a supporting device, 3, a sliding device, 4, a winding measuring device, 5, a first driving motor, 6, a first guide rail unit, 7, a first sliding seat unit, 701, a first mounting plate, 702, a second mounting plate, 8, a first connecting plate, 9, a first transmission screw, 10, a second driving motor, 11, a first guide pulley, 12, a second guide rail unit, 13, a second sliding seat unit, 14, a first transmission belt, 15, a connecting slide plate, 16, a second guide pulley, 17, a connecting bottom plate, 18, a connecting device, 1801, a second connecting plate, 1802, a fixed seat, 1803, a ball head, 1804, a fixed cover, 1805, a fixing bolt, 1806, a first connecting rod, 19, a supporting limit rod, 20, a third mounting plate, 21, a first connecting sleeve, 22, a transmission device, 2201, a worm gear, 2203, 2204, a central rotating shaft, 23, a third driving motor, 24, a tape device, 1, a tape housing, 2, a wheel, 3, a tape housing, 3, a driving wheel, a driving pulley, 2504, a reset spring, 2505, a weight-bearing layer, 2602, a damping ball, 2605, a damping ball, 2603, a damping ball, a guide roller, a 2505, a damping ball, a 2606, a buffer layer, a 2602, a guide roller, a 2605, a guide roller, a 2606, a guide roller, a 2605, a weight-shaped guide roller, a 2605, a guide roller, and a weight-shaped guide roller, and a 2605, a flexible guide roller, and a 2605.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the present application, fall within the scope of protection of the present application.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments in accordance with the present application. For ease of description, the dimensions of the various features shown in the drawings are not drawn to actual scale. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
It should be noted that the terms "first," "second," and the like in the description and in the claims are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
It should be noted that, in the description of the present application, the terms "front, rear, upper, lower, left, right", "horizontal, vertical, horizontal", and "top, bottom", etc., generally refer to the orientation or positional relationship shown in the drawings, and merely for convenience of describing the present application and simplifying the description, and these orientation terms do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the scope of the present application, but rather the orientation terms "inside and outside" refer to the inside and outside with respect to the outline of each component itself.
It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
The application discloses a foundation pit depth monitoring device, which comprises:
the connecting device 18 comprises a fixed base 1802 and a ball head 1803, wherein the ball head 1803 extends into the fixed base 1802 and can rotate, and a first connecting rod 1806 is arranged below the ball head 1803;
the winding measurement device 4 comprises a third mounting plate 20, wherein the upper end of the third mounting plate 20 is detachably connected with a first connecting rod 1806, a tape measure device 24 is arranged on one side of the third mounting plate 20, a tape measure wheel 2402 for winding a tape 25 is arranged in the tape measure device 24, a weight device 26 is arranged below the tape 25, a piezoelectric sensing luminous ball 2606 is arranged in the weight device 26, and the piezoelectric sensing luminous ball 2606 can emit light under pressure after the weight device 26 is sunk to the bottom of a foundation pit.
According to the foundation pit depth monitoring device disclosed by the application, as shown in fig. 8-10, by arranging the connecting device 18 comprising the fixed base 1802 and the freely rotatable ball 1803, the winding measuring device 4 is connected below the connecting device 18, on one hand, the ball 1803 is driven by the winding measuring device 4 to be vertically arranged relative to the fixed base 1802 under the action of dead weight, so that the whole measuring system keeps vertical arrangement under different installation angles, the adaptability and flexibility of equipment are enhanced, on the other hand, the winding measuring device 4 is provided with the third mounting plate 20, the tape measuring device 24 containing the tape 25 and the tape reel 2402 is arranged on the third mounting plate 20, the end of the tape 25 is connected with the weight device 26, the piezoelectric sensing light-emitting ball 2606 is embedded in the weight device 26, the tape 25 of the tape measuring device 24 is gradually unfolded along with the sinking of the weight device 26 in the measuring process, when the weight device 26 touches the bottom of the foundation pit, the piezoelectric sensing light-emitting ball 2606 emits light due to the compression, the light signal is used as a trigger mechanism to prompt a measuring person or system to record the reading on the tape, and further calculate the depth of the foundation pit. The whole measuring process relies on the accurate unfolding of the tape 25 and the instant feedback of the piezoelectric sensing luminescence ball 2606, ensuring the accuracy and reliability of the measurement.
According to the foundation pit depth monitoring device disclosed by the application, through the design of the ball head and the fixed base, the device can keep vertical measurement on various inclined or irregular installation surfaces, the application capability of equipment under different construction environments is greatly enhanced, the real-time and continuous monitoring of the foundation pit depth is realized by combining the expansion and contraction of the winding measuring device and the pressed luminous feedback of the piezoelectric sensing luminous ball in the heavy hammer device, the stability of the device under a complex environment is further enhanced, and the measurement accuracy can still be kept under the condition that water exists at the bottom of the foundation pit. The foundation pit depth monitoring device disclosed by the application effectively solves the limitation of the traditional measuring device under severe construction conditions, provides a more reliable technical means for safety monitoring of foundation pit engineering, is particularly suitable for special application scenes such as a vertical shaft foundation pit or accumulated water at the bottom of the foundation pit, and ensures smooth execution of construction activities and protection of surrounding environment.
As a preferred example of the present application, the connection means 18 comprises:
a second connection plate 1801 for removable securement of the connection device 18;
A fixing base 1802 integrally connected to the second connecting plate 1801, and having a space for accommodating the ball head 1803 therein;
A fixed cover 1804, which is arranged below the fixed base 1802 and detachably connected with the fixed base 1804 through a fixed bolt 1805, wherein the inner surface of the fixed cover 1804 is a curved surface and is matched with the curved surface below the center line of the ball head 1803;
a first connecting rod 1806 is fixed to the ball 1803 and extends downward.
The device discloses a specific structure of a connecting device 18, as shown in fig. 10, a second connecting plate 1801 of the connecting device 18 is fixed in a detachable mode, so that the device can be conveniently installed or detached to meet the requirements of different application scenes, a fixing base 1802 and the second connecting plate 1801 are integrally formed, the stability of the structure is improved, a space for accommodating a ball 1803 is formed inside the fixing base 1802, lubricating effect is achieved between the ball 1803 and the fixing base 1802 through lubricating oil arranged at a connecting position, smooth and stable rotation of the ball is ensured, abrasion and friction are reduced, the durability of the device is improved, a fixing cover 1804 is arranged below the fixing base 1802, the inner surface of the fixing cover 1804 is a curved surface and is matched with the curved surface below the center line of the ball 1803, the stability in the rotation process of the ball 1803 is ensured, the fixing cover 1804 and the fixing base are detachably connected through fixing bolts 1805, on one hand, the reliability and the stability of connection of the ball 1803 are guaranteed, on the other hand, the internal components are convenient to maintain and replace, and finally the connecting rod 1806 is connected to the connecting rod 1804 through the first connecting device arranged below the ball 1806. In the example of the present application, a first connection sleeve 21 is disposed on the third mounting plate 20, and the first connection sleeve 21 is detachably connected to the first connection rod 1806 through a connection bolt.
The connecting device 18 can be flexibly installed and disassembled at different positions, so that the wide applicability of the connecting device in various complex application scenes is ensured, the requirements of different construction environments are met, meanwhile, the design of free rotation of the ball head 1803 and the curved surface design of the fixed cover 1804 and the ball head 1803 are matched, friction and abrasion are reduced, the service life of the connecting device is prolonged, and the installation and maintenance processes are simple, convenient and quick.
As a preferred example of the present application, the tape measure device 24 includes:
a tape housing 2401 for accommodating and supporting a tape wheel 2402;
A tape roller 2402, a reel shaft 2403 is arranged at the center of the tape roller 2403, the reel shaft 2403 passes through the tape housing 2401 and can rotate relative to the tape housing 2401 under the action of external force, and a tape 25 which can be wound or unwound is wound on the tape roller 2402;
A stop pulley 2404 for guiding the stop tape 25 to extend toward the guide opening 2405 of the tape measure device 24.
The tape measure device 24 disclosed by the application, as shown in fig. 12, comprises a tape measure housing 2401 as a supporting and protecting structure of the whole device, which can accommodate and support a tape measure wheel 2402, wherein a reel rotating shaft 2403 is arranged at the center of the tape measure wheel 2402, the reel rotating shaft 2403 penetrates through the tape measure housing 2401 and can rotate relative to the housing, so that the winding rotation of the tape measure wheel 2402 can be realized by external force or external components, when the measurement is needed, the limitation of the reel rotating shaft 2403 is released or the external force is directly applied to drive the tape measure wheel 2402 to rotate, and the tape 25 is pulled out under the action of a heavy hammer device 26 to smoothly extend to a place to be measured. And after the measurement is completed, the user may retract the tape 25 by manually rotating the tape wheel or by an automatic means to ensure that the tape is able to be wound back into the tape wheel quickly. Preferably, the guiding opening 2405 of the tape measure device 24 is disposed at the lower end of the tape measure housing near the middle position, and is used for guiding the output of the tape 25 and ensuring that the tape stretches smoothly and unimpeded, avoiding the clamping or shifting of the tape, and ensuring the smooth measurement process.
As a preferred example of the present application, the winding measurement device 4 further includes:
The transmission device 22 comprises a worm 2201 and a worm gear 2202, wherein the worm 2201 is meshed with the worm gear 2202 for transmission, a central rotating shaft 2204 is arranged at the center of the worm gear 2202, and the central rotating shaft 2204 can drive a scroll rotating shaft 2403 to rotate under the rotation of the worm gear 2202;
a third driving motor 23 for driving the worm 2201 to rotate;
The third drive motor 23, the transmission 22 and the tape measure device 24 are arranged on opposite sides of the third mounting plate 20.
The winding measuring device 4 disclosed by the application is further provided with a winding automatic device for winding, unwinding and winding back a tape wheel 2402 on one side of the third mounting plate 20 far away from the tape device 24, and the winding automatic device comprises a third driving motor 23 and a transmission device 22, wherein the transmission device 22 mainly comprises a worm 2201 and a worm gear 2202, and the worm 2201 is meshed with the worm gear 2202 for transmission. When the third driving motor 23 is started, the third driving motor can drive the worm 2201 to rotate, along with the rotation of the worm 2201, the worm gear 2202 correspondingly rotates under the action of meshing transmission, and the worm gear 2202 can directly or indirectly drive the central rotating shaft 2204 at the center of the worm gear 2202 to rotate when rotating, so as to drive the reel rotating shaft 2403 to rotate, thereby realizing automatic winding and unwinding or winding and rewinding of the tape 25, enabling the tape 25 to extend out quickly and reliably when a user needs to measure, and automatically winding back after the measurement is completed. Preferably, the inner ring of the worm gear 2202 is integrally connected with the central rotating shaft 2204 through a driving wheel 2203, so as to realize the speed reduction transmission of the worm 2201. According to the winding measuring device 4 disclosed by the application, the automatic winding control is realized by introducing the third driving motor 23 and the worm and worm wheel transmission system, the stability and stability of the winding operation are ensured by the speed reduction transmission characteristic, meanwhile, the transmission mode of the worm and the worm wheel also has a self-locking function, the tape is prevented from being accidentally pulled out due to the action of the heavy hammer when not needed, the measuring accuracy is influenced, the whole device is arranged on one side of the third mounting plate 20 far away from the tape measure device 24, the space layout is optimized, the structure is compact, the operation of the winding measuring device is more convenient and accurate, the reliability and the service life of equipment are improved, the maintenance difficulty of the equipment is reduced, and the operation experience of a user is improved. Preferably, the third driving motor 23 is a built-in lithium battery and wireless control, no external power supply is needed for connection, and the structure is greatly simplified, complicated cables and external power supply harnesses are removed, the portability and the operation convenience of the device are enhanced, and at the same time, the casing, the bracket and the worm and gear transmission system of the third driving motor 23 are made of high-strength composite materials with light weight and density, the overall weight of the winding automatic device is reduced, and the third driving motor 23 and the transmission device 22 can be integrally designed or can be independently designed in a split mode.
As a preferred example of the present application, the weight device 26 includes:
Weight ball 2601, connected to the lower end of tape 25 as one body;
A buffer housing 2602 concentrically provided outside the weight ball 2601, the buffer housing 2602 being made of a transparent resin material;
a support rib 2603 provided between the outer wall of the weight ball 2601 and the inner wall of the buffer housing 2602;
an arc-shaped holder 2604 provided on an inner sidewall of a bottom of the buffer housing 2602;
a return spring 2605 connected between the weight ball 2601 and the arc-shaped holder 2604 and capable of being compressively deformed when the buffer housing 2602 contacts the ground;
A piezoelectric sensing light emitting ball 2606 is provided between the arc-shaped holder 2604 and the weight ball 2601, and emits light when the return spring 2605 is pressed when it is deformed by pressing.
In the example of the present application, as shown in fig. 14, the weight device 26 realizes the foundation pit depth measurement by the cooperative work of a weight ball 2601, a buffer housing 2602, a support rib 2603, an arc-shaped retainer 2604, a return spring 2605 and a piezoelectric sensing luminescence ball 2606. The weight ball 2601 is a core component of a weight, and is made of high-density and high-stability lead or stainless steel, so that the tape 25 and the winding measuring device 4 can be stably suspended in the vertical direction under the action of dead weight, while a buffer housing 2602 made of transparent resin materials (such as polycarbonate, acrylic resin or polyimide) is arranged on the outer side of the weight ball 2601, so that on one hand, a space for installing the piezoelectric sensing and light emitting ball 2606 is formed, and on the other hand, the piezoelectric sensing and light emitting ball 2606 can emit light outwards through the buffer housing 2602 when being pressed and light emitted, so that the weight ball can give out time and time even when monitoring the depth of a foundation pit with water accumulation, According to accurate feedback, a plurality of radially arranged support ribs 2603 are arranged on the outer wall of the weight ball 2601 and the inner wall of the buffer housing 2602, the support ribs 2603 are mainly arranged at the left side and the right side of the weight ball 2601 or at the position close to the upper end of the weight ball 2601, the support ribs 2603 are not arranged at the position close to the lower end of the weight ball 2601, an arc-shaped retainer 2604 is arranged at the position close to the lower end of the inner wall of the buffer housing 2602, a reset spring 2605 is arranged right below the weight ball 2601, the reset spring 2605 is in a natural state or a stretching state when the weight device 26 does not contact the ground, the weight ball 2601 is prevented from extruding the piezoelectric sensing luminous balls 2606 to cause false luminescence, the two piezoelectric sensing luminous balls 2606 are symmetrically arranged at the opposite sides of the reset spring 2605, when the weight device 26 falls to the bottom, the weight ball 2602 is wound downwards, the weight ball is continuously wound on the inner wall of the buffer housing 2602, the weight ball is continuously pressed down, the weight device is continuously driven by the piezoelectric sensing luminous balls 2606, and the weight device 2606 is not pressed, and the light emission of the weight device is measured, and the weight device is not stressed by the piezoelectric device 2606, and the weight device is measured, and the weight device is completely can be used for measuring the light emission when the weight device is completely, and the weight is completely and the weight is measured, and the weight is completely is measured by the weight and the weight device is completely and the light and the weight is completely and is completely pressed. In the example of the present application, the piezoelectric sensing luminescence ball 2606 may be made of high-efficiency piezoelectric ceramics such as lead titanate (PZT), etc., and may be combined with a Light Emitting Diode (LED) to realize piezoelectric luminescence, or may be assembled by using a commercially available piezoelectric sensing luminescence device. In the example of the present application, the blade 25 extends into the buffer housing 2602 and is coupled to the weight ball 2601, and the zero position of the blade 25 is the center of the weight ball 2601.
According to the heavy hammer device 26, through the combination of the innovative piezoelectric sensing luminous ball 2606 and the buffer housing 2602, not only is the compression resistance and stability of the device ensured, but also real-time feedback can be realized through luminous signals, so that a measurer can rapidly judge whether the heavy hammer device 26 reaches the bottom of a foundation pit, accurate depth data can be rapidly obtained, and the accuracy and the operation convenience of foundation pit depth measurement are greatly improved.
As a preferred example of the present application, as shown in FIG. 13, the blade 25 comprises a steel base layer 2501, a connecting layer 2502 and a reinforcing layer 2503, wherein measuring marks are arranged on one side of the steel base layer 2501 away from the reinforcing layer 2503, and the cross section of the blade 25 is I-shaped. In the example of the present application, the steel base layer 2501 is used as the core supporting part of the tape and is made of a high carbon steel tape with the thickness of 0.2mm, which ensures that the tape has enough rigidity and durability and provides good stretch resistance and deformation resistance, the reinforcing layer 2503 is a bi-directional carbon fiber prepreg tape with a staggered layering of +/-45 degrees, the carbon fiber prepreg tape is cut into narrow tapes with the width of 5-7 mm, the narrow tapes are spirally wound at the staggered layering of +/-45 degrees along the length direction of the tape, the paving length direction of the narrow tapes is arranged along the length direction of the tape 25, the tensile strength and stability of the tape 25 can be improved under the tensile effect of the heavy hammer device 26, the shearing stress between fiber layers of the tape 25 is reduced, the connecting layer 2 between the steel base layer 2501 and the reinforcing layer 2503 is made of polyurethane elastomer, the thickness of the polyurethane elastomer is less than 0.05mm, and the good adhesive force between two layers of materials is ensured, and the flexibility and the elasticity of the tape 25 are maintained.
The application further optimizes the structure of the tape 25, designs the tape into a composite structure comprising the steel base layer 2501, the connecting layer 2502 and the reinforcing layer 2503, designs the section of the tape into an I shape, can effectively enhance the bending resistance of the tape 25, simultaneously ensures the precision of the tape during measurement, particularly reduces the sagging or distortion of the tape during the use of the long tape, ensures the accuracy of measuring marks, ensures higher accuracy in measuring the depth of a foundation pit, reduces maintenance cost and prolongs the service period of products. In the example of the present application, the total length of the tape 25 is 50m to 100m.
As a preferred example of the present application, the foundation pit depth monitoring device further includes:
A mounting base 1;
the supporting device 2 is supported and fixed above the mounting base 1;
The sliding device 3 comprises a first driving motor 5, a first guide rail unit 6, a first sliding seat unit 7, a second driving motor 10, a second guide rail unit 12 and a second sliding seat unit 13, wherein two opposite ends of the first guide rail unit 6 are arranged on the supporting device 2, the first sliding seat unit 7 is arranged on the first guide rail unit 6 and can horizontally slide along the first guide rail unit 6 under the action of the first driving motor 5, the second driving motor 10 and the second guide rail unit 12 are arranged on the first sliding seat unit 7, the second sliding seat unit 13 is arranged on the second guide rail unit 12 and can horizontally slide under the action of the second driving motor 10, the connecting device 18 is arranged on the second sliding seat unit 13, and the length direction of the first guide rail unit 6 is perpendicular to the length direction of the second guide rail unit 12.
As shown in fig. 1 to 7, the foundation pit depth monitoring device disclosed by the application further improves the flexibility and positioning precision of the device by adopting a double-shaft sliding system, is particularly suitable for multi-point monitoring application scenes, and is based on a mounting base 1, so that a stable support is provided for the whole system, a supporting device 2 is vertically arranged on the mounting base 1, a solid supporting platform is provided for the operation of a follow-up sliding device 3, the sliding device 3 comprises two sets of mutually vertical guide rails and a sliding seat system, a first guide rail unit 6 is horizontally arranged, and a first sliding seat unit 7 is arranged on the guide rails and can slide along the horizontal direction of the guide rails under the driving of a first driving motor 5; the second driving motor 10 and the second guide rail unit 12 are installed on the first sliding seat unit 7, the second sliding seat unit 13 is arranged on the second guide rail unit 12, and can slide along the direction vertical to the first guide rail, through the orthogonal guide rail system, the winding measuring device 4 connected with the connecting device 18 can carry out accurate position adjustment on a two-dimensional plane, the flexibility and the positioning precision of the monitoring device are obviously improved, when the depth measurement of a plurality of monitoring points in a foundation pit is required, the tape 25 does not need to be fully wound back, only after the heavy hammer device 26 is lifted a certain distance, the piezoelectric sensing luminous ball 2606 in the heavy hammer device 26 is deenergized, the working state of the first driving motor 5 or the second driving motor 10 is regulated, so that the winding measuring device 4 can be quickly and accurately positioned to any monitoring point covered by the guide rail in the foundation pit, then the tape 25 is wound and opened again, the depth of the foundation pit of the monitoring point is recorded when the heavy hammer device 26 falls down and emits light, the whole process does not need to completely reel back the tape 25, and the quick and accurate monitoring can be realized through a small amount of adjustment.
As a preferred example of the present application, as shown in fig. 6, the first sliding seat unit 7 includes a first mounting plate 701 and a second mounting plate 702, the first mounting plate 701 and the second mounting plate 702 are disposed on the upper and lower sides of the first rail unit 6, a first connection plate 8 is disposed on the first mounting plate 701, the first connection plate 8 is in screw transmission connection with a first transmission screw 9, and the first connection plate 8 can be driven to continuously slide along the first rail unit 6 when the first driving motor 5 drives the first transmission screw 9 to rotate. As a preferred example of the present application, three first connecting plates 8 are provided, a screw nut in screw connection with the first transmission screw 9 is provided on at least one first connecting plate 8, two supporting and limiting rods 19 are provided on the first connecting plate 8, and two ends of the supporting and limiting rods 19 are respectively connected with the connecting lug plates on the two supporting devices 2.
This setting is through the design of first seat unit 7 that slides to constitute by first mounting panel 701 and second mounting panel 702, and set up respectively in the upper and lower both sides of first guide rail unit 6 to form stable bearing structure, combine the first connecting plate 8 that sets up on the first mounting panel 701, be connected through screw drive with first drive lead screw 9, make first connecting plate 8 slide in succession along first guide rail unit 6. In order to ensure the stability and the accuracy of movement, the first connecting plates 8 are provided with three connecting plates, and each connecting plate is provided with two supporting limiting rods 19, so that the lateral offset caused by the influence of external force in the sliding process is effectively prevented, the accuracy and the stability of the sliding process are ensured, the rigidity of the whole system is improved, and the higher accuracy can be kept for each sliding and positioning.
As a preferred example of the present application, a first guide pulley 11 is provided on the first slide base unit 7, and the first guide pulley 11 is slidably guided in cooperation with a guide groove of the first rail unit 6. Preferably, the first guide pulleys 11 are provided in plurality and distributed on opposite sides of the first rail unit 6 in the longitudinal direction. According to the application, the plurality of first guide pulleys 11 are arranged on the first sliding seat unit 7, when the first sliding seat unit 7 slides along the first guide rail unit 6, the first guide pulleys 11 roll freely in the guide grooves, so that sliding friction force is reduced, the sliding seat unit is ensured to move along the guide rail unit easily and smoothly, and thus, the operation efficiency of the whole system is improved, meanwhile, the plurality of guide pulleys are uniformly distributed on the two opposite sides of the first guide rail unit 6, the stability of the sliding seat unit under high-speed movement or heavy load is effectively enhanced, track deviation or precision loss caused by uneven stress is avoided, the stability and reliability of the system are improved, abrasion caused by long-time operation is greatly reduced, and the service life of equipment is prolonged.
As a preferred example of the present application, the second driving motor 10 is disposed on the second mounting plate 702, the second driving motor 10 drives the second sliding seat unit 13 to slide along the second rail unit 12 through the first driving belt 14, the second sliding seat unit 13 includes a connecting sliding plate 15 and a connecting bottom plate 17, the connecting sliding plate 15 and the connecting bottom plate 17 are connected to form a "ㄈ" shape and wrapped on the second rail unit 12, and the connecting bottom plate 17 is detachably and fixedly connected with the connecting device 18. In the example of the present application, as shown in fig. 7, the second driving motor 10 is mounted on the second mounting plate 702, and transmits the rotation power to the second sliding seat unit 13 through the first driving belt 14, the second sliding seat unit 13 is composed of the connecting sliding plate 15 and the connecting bottom plate 17, the two form a 'ㄈ' shape structure tightly wrapped on the second guide rail unit 12, the web of the 'ㄈ' shape is connected with the first driving belt 14 into a whole, after the second driving motor 10 is started, the rotation motion of the second driving motor is converted into the linear motion through the belt transmission, so as to drive the second sliding seat unit 13 to slide along the second guide rail unit 12 smoothly, and the overall operation efficiency of the system is effectively improved. The arrangement ensures the close contact between the sliding seat unit and the guide rail unit, prevents the shaking or offset in the sliding process, and improves the sliding stability and precision.
As a preferred example of the present application, as shown in fig. 5, a second guide pulley 16 is provided on the second sliding seat unit 13, and the second guide pulley 16 is slidably guided in cooperation with a guide groove of the second rail unit 12. Preferably, a plurality of second guide pulleys 16 are provided and distributed on opposite sides of the second rail unit 12 in the longitudinal direction. This arrangement further enhances the stability and smoothness of the sliding of the second sliding seat unit 13 along the second rail unit 12.
As a preferred example of the present application, the pit depth monitoring device further includes a moving assembly 100, and the mounting base 1 is placed on the moving assembly 100 and can be integrally moved or locked therewith. In the example of the present application, the installation base 1, the supporting device 2, the sliding device 3 and the winding measuring device 4 are integrally assembled into a measuring assembly 200, and the measuring assembly 200 is installed on the moving assembly 100 and can integrally move along with the moving assembly, so that the foundation pit depth monitoring device of the present application can be quickly transferred to a corresponding position for foundation pit depth monitoring when performing depth measurement of different monitoring points.
The application also discloses a foundation pit depth monitoring method, which comprises the following steps:
s1, equipment installation and calibration;
the installation base 1 is moved to a preset monitoring point at the edge of a foundation pit through a moving assembly 100, a wheel brake of the moving assembly is locked, a connecting device 18 is moved to an initial position at the center of the foundation pit through a first driving motor 5 and a second driving motor 10 of a sliding device 3, and a winding measuring device 4 naturally vertically rotates through a ball 1803;
S2, winding the tape measure device and detecting the bottom of the heavy hammer;
The third driving motor 23 is started, the tape 25 on the tape reel 2402 is wound and unfolded in a decelerating way through the transmission device 22 comprising the worm 2201 and the worm gear 2202, the weight device 26 drives the tape 25 to vertically drop under the action of dead weight, the limiting pulley 2404 ensures that the tape does not deviate, when the weight device 26 contacts the bottom of the foundation pit, the reset spring 2605 is pressed and deformed to trigger the piezoelectric sensing luminous ball 2606 to emit light, and the third driving motor 23 immediately stops and self-locks the tape reel 2402;
s3, reading the depth of the foundation pit;
the measuring marks of the tape 25 at the guide opening 2405 of the tape measure device 24 are read, the extension length L of the tape 25 is recorded, and the foundation pit depth is calculated according to a foundation pit depth calculation formula:
H=L-Δh+Δp;
Wherein, H is the depth of the foundation pit, Δh is the elevation correction value from the mounting base to the edge of the foundation pit, and Δp is the difference between the radius of the buffer housing 2602 and the radius of the counterweight ball 2601;
S4, multipoint monitoring and sliding positioning;
Starting the third driving motor 23 to reversely wind the tape 25, lifting the weight device 26 to a safe height, wherein the safe height can be according to the preset working time of the third driving motor 23 or the position of the weight device 26 after the weight device 26 ascends by the preset height, at the moment, the piezoelectric sensing luminous ball 2606 is extinguished, the first sliding seat unit 7 or the second sliding seat unit 13 is adjusted through the first driving motor 5 and/or the second driving motor 10, the winding measuring device 4 is positioned to the next monitoring point, and repeating the steps S2 and S3 to finish multipoint depth measurement;
s5, winding and transferring equipment;
After the depth measurement of the foundation pit is completed, the third driving motor 23 is started to wind the tape 25 for rewinding, after the tape 25 is completely rewound, the worm gear is self-locked, the sliding device 3 is reset to the initial position, the wheel brake of the moving assembly 100 is released, and the next construction area is transferred.
According to the application, the winding measuring device is automatically kept in a vertical state on different inclined or irregular mounting surfaces through the innovative ball head connecting device and the freely rotatable fixing base design, the weight device with the piezoelectric sensing luminous ball is combined with the real-time luminous feedback parallel driving motor self-locking when the weight device is bottomed, the measuring instantaneity and accuracy are remarkably improved, meanwhile, the I-shaped composite structure tape and the carbon fiber reinforced layer design are adopted to effectively inhibit bending and deformation of the tape during long-distance measurement, the quick multi-point positioning and global coverage monitoring are realized through the synergistic effect of the double-shaft sliding system and the moving assembly, the working efficiency is greatly improved, the manual intervention is reduced, in addition, the self-locking characteristic of the worm gear transmission mechanism and the optimal design of the composite tape structure are improved, the stability and durability of the equipment under a complex environment (such as water accumulation) are enhanced, the device is particularly suitable for reliable monitoring of the depth of a shaft foundation pit, the operation difficulty and the maintenance cost are reduced, and the real-time early warning and the reliable guarantee is provided for construction safety.
The embodiments of the present application have been described above with reference to the accompanying drawings, in which the embodiments of the present application and features of the embodiments may be combined with each other without conflict, the present application is not limited to the above-described embodiments, which are merely illustrative, not restrictive, of the present application, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are protected by the present application.
Claims (10)
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| CN119756127B (en) | 2025-06-20 |
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