Detection device for detecting opening amount of load box
By using a hydraulic mechanism to drive the support plate of the load box to separate, combined with a sliding rheostat and a display module, accurate detection of the opening status and opening amount of the load box is achieved. This solves the problem that the load box cannot be intuitively judged in the self-balancing test, and improves the accuracy and reliability of the detection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-03-27
AI Technical Summary
In the self-balancing pile test method, the load cell cannot be directly judged as to whether it is opening and working normally, and the opening amount cannot be accurately determined, which affects the accuracy and reliability of the test.
A detection device was designed, including an upper support plate and a lower support plate driven by a hydraulic mechanism, combined with a sliding rheostat and a display module. The opening state and opening amount of the load box are determined by the change of current or voltage value, and the displacement is calculated by changing the length of the resistance wire connected to the circuit using a slider.
It improves the accuracy and reliability of self-balancing tests, enabling timely determination of whether the load cell has been opened correctly, thus ensuring the precision and reliability of the test.
Smart Images
Figure CN224048237U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of civil engineering pile foundation bearing capacity test especially relates to a detection device for detecting the opening amount of load box. BACKGROUND
[0002] At present, pile foundation is an important underground structure in building, which determines whether the upper building is safe and reliable, but since it is deeply buried underground, its quality cannot be directly detected, so the safety problem of pile foundation is very important. In order to ensure the safety of pile foundation and even the whole building, the single pile ultimate bearing capacity of pile foundation needs to be detected. Among them, the self-balancing test pile method can utilize the internal counterforce of pile foundation, that is, the load box is buried at the internal balance point of the pile, the side friction of the upper pile, the weight and the side friction of the lower pile and the pile end resistance are balanced to load, and the bearing capacity of the pile is converted according to the test result by conversion method. However, due to the complexity of engineering geology, the load box in the pile cannot be opened for testing, and since the load box has been buried in the pile, the test personnel cannot directly judge whether the load box can normally open and work, and cannot judge the opening amount of the load box. CONTENT OF THE UTILITY MODEL
[0003] In view of the above problems, the utility model provides a detection device for detecting the opening amount of load box, which can detect whether the load box normally opens and works in the self-balancing test, and can facilitate people to analyze the opening amount of the load box, thereby providing guarantee for the accuracy of the self-balancing test.
[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0005] A detection device for detecting the opening amount of load box, comprising: a load box, comprising an upper support plate and a lower support plate, a hydraulic mechanism is arranged between the upper support plate and the lower support plate, the hydraulic mechanism is used for driving the upper support plate and the lower support plate to separate from each other along the vertical direction; a mounting pipe is arranged on the lower support plate, a sliding resistor is arranged in the mounting pipe, the sliding resistor comprises a sliding sheet and a resistance wire which are in contact with each other, the sliding sheet is electrically connected with a display module through a first connecting line, the display module is used for displaying the current value or voltage value of the circuit, the sliding sheet is fixedly arranged relative to the upper support plate, the resistance wire is connected with a power supply through a second connecting line, the second connecting line is arranged on the lower support plate, and the power supply is electrically connected with the display module, wherein the upper support plate and the lower support plate are separated from each other to drive the sliding sheet to change the length of the resistance wire connected to the circuit.
[0006] The detection device for detecting the opening amount of the load box has at least the following beneficial effects: in use, the load box is pre-buried in the reinforcement cage, and the first connecting line and the second connecting line connect the circuit of the display module, so that the display module is in an energized state, then the reinforcement cage is poured with concrete to form a pile foundation, finally, a detection personnel performs a self-balancing test on the pile foundation, the hydraulic mechanism is used to drive the upper support plate and the lower support plate to be separated from each other, so as to drive the sliding sheet to change the length of the resistance wire connected to the circuit, and then the resistance of the circuit connected by the resistance wire is changed, finally, people can determine whether the load box is in an open state by observing the change of the current value or the voltage value of the display module, and people can calculate the opening amount of the load box according to the corresponding program, and the displacement of the load box can be determined, so that the accuracy of detection is improved.
[0007] Further, the upper support plate is provided with a sleeve downward, the sleeve is movably sleeved in the installation pipe, the sliding sheet is fixedly arranged in the sleeve, the sliding rheostat further comprises an insulating cylinder, the insulating cylinder is arranged in the installation pipe in the vertical direction, and the resistance wire is arranged on the insulating cylinder.
[0008] Further, the display module further comprises an LED indicator light, and a switch button is electrically connected between the power supply and the LED indicator light.
[0009] Further, the hydraulic mechanism comprises a plurality of jacks, the plurality of jacks are circumferentially distributed on the lower support plate, and output ends of the jacks are connected with the upper support plate.
[0010] Further, the upper pipe pile and the lower pipe pile are further included, the upper support plate is connected with the upper pipe pile, and the lower support plate is connected with the lower pipe pile.
[0011] Further, the data acquisition system is further included, the data acquisition system comprises a plurality of displacement sensors which are electrically connected in sequence, and the plurality of displacement sensors are vertically and spacedly arranged on the upper pipe pile and the lower pipe pile.
[0012] Further, the load box comprises an outer steel ring and an inner steel ring, the inner steel ring is provided with a grouting pipe in the inner steel ring, and the outer steel ring and the inner steel ring are provided with a connecting plate.
[0013] Further, the lower support plate is connected with a reinforcing bar, and the upper support plate is provided with a through hole for the reinforcing bar to pass through.
[0014] The additional aspects and advantages of the present application will be further described in the following description, some of which will be apparent from the description, some of which will become apparent to those skilled in the art from the description, or be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0015] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:
[0016] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of a detection device for detecting the opening amount of a load box according to the present application;
[0017] Figure 2 FIG. 2 is a structural schematic diagram of an embodiment of a load box according to the present application; Figure 1
[0018] Figure 3 FIG. 3 is a structural schematic diagram of an embodiment of a load box according to the present application; Figure 1
[0019] Figure 4 FIG. 4 is a transverse sectional view of an embodiment of a load box according to the present application. Figure 1
[0020] In the figure: load box 100, outer steel ring 101, inner steel ring 102, connecting plate 103, upper support plate 110, lower support plate 120, sleeve 130, connecting rod 131, jack 140, reinforcing bar 150, mounting pipe 200, first connecting line 210, display module 220, second connecting line 230, power supply 240, sliding rheostat 300, sliding sheet 310, resistance wire 320, insulating cylinder 330, metal rod 340, upper pipe pile 400, lower pipe pile 410, displacement sensor 420. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be apparently and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0022] In the description of the utility model, it needs to explain, the term '' inside '' '' front '' '' back '' '' left '' '' right '' and so on indicate the direction or position relation is based on the direction or position relation shown in the drawing, or it is the direction or position relation of the utility model product when using usually put, only is for the convenience of describing the utility model and simplifying the description, and is not indicate or imply the device or element indicated must have a particular direction, with a particular direction structure and operation, therefore cannot be understood as the limitation of the utility model.
[0023] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceed and so on are understood as not including the number, above, below, within and so on are understood as including the number.If there is a description to the term '' first '' '' second '' is only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0024] In the description of the utility model, it also needs to explain that, unless otherwise explicitly specified and limited, the term '' setting '' '' connection '' should be broadly understood, for example, it can be fixedly connected, can be detachably connected, or integrally connected;It can be mechanically connected, or electrically connected;It can be directly connected, or indirectly connected through an intermediate medium, it can be the communication inside two elements.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.
[0025] Referring to Figures 1 to 4 A detection device for detecting the opening amount of a load box, comprising: a load box 100 and a mounting pipe 200. Wherein, the load box 100 comprises an upper support plate 110 and a lower support plate 120, a hydraulic mechanism is arranged between the upper support plate 110 and the lower support plate 120, the hydraulic mechanism is used for driving the upper support plate 110 and the lower support plate 120 to separate from each other along the vertical direction;The mounting pipe 200 is arranged on the lower support plate 120, the mounting pipe 200 is internally provided with a sliding resistor 300, the sliding resistor 300 comprises a sliding sheet 310 and a resistance wire 320 in contact with each other, the sliding sheet 310 is electrically connected with a display module 220 through a first connecting line 210, the display module 220 is used for displaying the current value or voltage value of the circuit, the sliding sheet 310 is fixedly arranged relative to the upper support plate 110, the resistance wire 320 is connected with a power supply 240 through a second connecting line 230, the second connecting line 230 is arranged on the lower support plate 120, the power supply 240 is electrically connected with the display module 220, wherein, the upper support plate 110 and the lower support plate 120 separate from each other, so as to drive the sliding sheet 310 to increase the length of the resistance wire 320 connected to the circuit.
[0026] The detection device for detecting the opening amount of the detection load box has the advantages that, in use, the load box 100 is pre-buried in the steel reinforcement cage, the first connecting wire 210 and the second connecting wire 230 are connected to the circuit of the display module 220, so that the display module 220 is in an energized state, then the steel reinforcement cage is poured with concrete to form a pile foundation, finally, the detection personnel perform a self-balancing test on the pile foundation, the upper support plate 110 and the lower support plate 120 are driven to move away from each other by the hydraulic mechanism, so as to drive the sliding sheet 310 to change the length of the resistance wire 320 connected to the circuit, and then change the resistance of the circuit connected by the resistance wire 320, finally, people can determine whether the load box 100 is in an open state by displaying the change of the current value or the voltage value of the circuit by the display module 220, and can calculate the opening amount of the load box 100 according to the corresponding program, and can determine the displacement of the load box 100, thereby improving the accuracy of detection. In the process of the self-balancing test, if the load box 100 fails to normally open, the current value or the voltage value of the display module 220 will remain unchanged. In addition, since the resistance of the sliding rheostat 300 connected to the circuit changes linearly, people can calculate the displacement of the load box 100 according to the linear change of the current value or the voltage value. Through the above structure, the detection personnel can determine whether the load box is in an open state by the numerical value of the display module 220, so as to assist the detection personnel to take corresponding operations in time, and is beneficial to improving the accuracy and reliability of the self-balancing test.
[0027] Referring to Figures 1 to 3 Further, the upper support plate 110 is provided with a sleeve 130, the sleeve 130 is movably sleeved in the installation pipe 200, the sliding sheet 310 is fixedly arranged on the sleeve 130, the sliding rheostat 300 further comprises an insulating cylinder 330, the insulating cylinder 330 is arranged in the installation pipe 200 in a vertical direction, and the resistance wire 320 is arranged on the insulating cylinder 330. Specifically, the sliding rheostat 300 further comprises a metal rod 340, the metal rod 340 is parallel to the insulating cylinder 330, the metal rod 340 is provided with two connection points at two ends, and the insulating cylinder 330 is in a vertical state and is provided with two connection points. When the second connecting wire 230 is connected to the connection point at the upper part of the insulating cylinder 330, and the first connecting wire 210 is connected to one of the connection points of the metal rod 340, the sliding sheet 310 moves upward to reduce the length of the resistance wire 320 connected to the circuit, and then the current value in the circuit is increased. Similarly, when the second connecting wire 230 is connected to the connection point at the lower part of the insulating cylinder 330, and the first connecting wire 210 is connected to one of the connection points of the metal rod 340, the sliding sheet 310 moves upward to increase the length of the resistance wire 320 connected to the circuit, and then the current value in the circuit is reduced. The specific connection of the first connecting wire 210 and the second connecting wire 230 can be adjusted as needed. It can be understood that, in order to facilitate the sleeve 130 to drive the sliding sheet 310 to move, the sliding sheet 310 is connected to the lower end of the sleeve 130 through a connecting rod 131.
[0028] Further, the display module 220 further comprises an LED indicator, and a switch button is electrically connected between the power supply 240 and the LED indicator. Specifically, the LED indicator is arranged so that the detection personnel can quickly determine whether the load box 100 is normally opened by the brightness change of the LED indicator. It can be understood that the display module 220 comprises an ammeter, and the circuit is turned on or off according to the size of the current value. The switch button is arranged to facilitate active disconnection of the circuit when the self-balancing test is not needed, thereby improving the user experience.
[0029] Referring to Figure 2 and Figure 4 Further, the hydraulic mechanism comprises a plurality of jacks 140, which are circumferentially distributed on the lower support plate 120, and the output ends of the jacks 140 are connected to the upper support plate 110, so that the plurality of jacks 140 are used to push the upper support plate 110 to move upward, thereby facilitating the increase of the output pressure provided by the load box 100.
[0030] Referring to Figure 1 Further, it further comprises an upper pipe pile 400 and a lower pipe pile 410, the upper support plate 110 is connected to the upper pipe pile 400, and the lower support plate 120 is connected to the lower pipe pile 410. Specifically, the load box 100 is buried at a specific position of the pile body, the ground loading system is connected to the jacks 140 through oil pipes, and the upward pressure applied to the upper support plate 110 by the jacks 140 is increased, and the upper pipe pile 400 and the lower pipe pile 410 respectively generate corresponding displacements.
[0031] Referring to Figure 1 Further, it further comprises a data acquisition system, which comprises a plurality of displacement sensors 420 electrically connected in sequence, and the plurality of displacement sensors 420 are distributed along the vertical direction on the upper pipe pile 400 and the lower pipe pile 410, thereby recording the displacement of the upper pipe pile 400 and the lower pipe pile 410. It can be understood that the data acquisition system further comprises a pressure sensor for measuring the load acting on the pile body, and the displacement sensor 420 and the pressure sensor are electrically connected to a data processing unit, thereby recording the load acting on the pile body and the displacement through the data processing unit, obtaining the load-displacement curve of the upper pipe pile 400 and the lower pipe pile 410, and finally facilitating the analysis of the ultimate bearing capacity of the pile foundation.
[0032] Referring to Figure 4Further, the load box 100 comprises an outer steel ring 101 and an inner steel ring 102, the inner steel ring 102 is internally provided with a grouting pipe, and the outer steel ring 101 is provided with a connecting plate 103 between the outer steel ring 101 and the inner steel ring 102. Specifically, the connecting plate 103 is provided, which is conducive to installing a wire pipe and an oil injection pipe on the connecting plate 103, the first connecting wire 210 and the second connecting wire 230 are protected by the wire pipe to extend on the ground, and the oil injection pipe is convenient for oil delivery to the hydraulic mechanism.
[0033] Referring to Figure 2 Further, the lower support plate 120 is connected with a steel bar 150, and the upper support plate 110 is provided with a through hole for the steel bar 150 to pass through, so as to facilitate the movement of the upper support plate 110 relative to the lower support plate 120.
[0034] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the present application.
[0035] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the present application, the scope of the present application is defined by the claims and their equivalents.
Claims
1. A detection device for detecting the opening amount of a load box, characterized by, The utility model provides load box (100) including upper support board (110) and lower support board (120), be equipped with hydraulic mechanism between upper support board (110) and lower support board (120), and the hydraulic mechanism is used to drive upper support board (110) and lower support board (120) along vertical direction each other separates; Mounting pipe (200) is equipped in lower support board (120), and sliding rheostat (300) is built-in in mounting pipe (200), and sliding rheostat (300) includes slide (310) and resistance wire (320) that contact each other, slide (310) is electrically connected with display module (220) through first connecting wire (210), and display module (220) is used to show the current value or voltage value of circuit, and slide (310) is fixedly arranged relative to upper support board (110), and resistance wire (320) is connected with power supply (240) through second connecting wire (230), and second connecting wire (230) is equipped in lower support board (120), and power supply (240) is electrically connected with display module (220), wherein upper support board (110) and lower support board (120) each other separates to drive slide (310) changes the length of resistance wire access circuit. Upper support board (110) is downwardly provided with a sleeve (130) movably sleeved inside the mounting pipe (200), the slide (310) is fixedly arranged on the sleeve (130), and the sliding rheostat (300) further includes an insulating cylinder (330) built-in in the mounting pipe (200) along the vertical direction, and the resistance wire (320) is wound around the insulating cylinder (330).
2. The device for detecting the opening amount of a load box according to claim 1, wherein The display module (220) further includes an LED indicator light, and a switch button is electrically connected between the power supply (240) and the LED indicator light.
3. The device for detecting the opening amount of a load box according to claim 1, wherein The hydraulic mechanism includes a plurality of jacks (140) circumferentially distributed on the lower support plate (120), and the output ends of the jacks (140) are connected to the upper support plate (110).
4. The device for detecting the opening amount of a load box according to claim 1, wherein Further comprising an upper pipe pile (400) and a lower pipe pile (410), the upper support plate (110) is connected to the upper pipe pile (400), and the lower support plate (120) is connected to the lower pipe pile (410).
5. The device for detecting the opening amount of a load box according to claim 1, wherein Further comprising a data acquisition system, the data acquisition system includes a plurality of displacement sensors (420) electrically connected in sequence, and the plurality of displacement sensors (420) are spaced apart and distributed on the upper pipe pile (400) and the lower pipe pile (410) along the vertical direction.
6. The device for detecting the opening amount of a load box according to claim 5, wherein The load box (100) includes an outer steel ring (101) and an inner steel ring (102), a grouting pipe is arranged inside the inner steel ring (102), and a connecting plate (103) is arranged between the outer steel ring (101) and the inner steel ring (102).
7. The device for detecting the opening amount of a load box according to claim 1, wherein The lower support plate (120) is connected with a steel bar (150), and the upper support plate (110) is provided with a through hole for the steel bar (150) to pass through.
8. The device for detecting the opening amount of a load box according to claim 1, wherein