A monitoring device for grouting of a cast-in-place pile

Abstract

This invention relates to the field of grouting monitoring technology for cast-in-place piles, and particularly to a monitoring device for grouting of cast-in-place piles, comprising: a first electric push rod; a horizontal sensor installed in the first electric push rod; a first connecting plate fixedly connected to the upper side of the fixed part of the first electric push rod, and a second connecting plate fixedly connected to the lower side; multiple second electric push rods hinged to the first connecting plate; a support rotating rod hinged to the telescopic part of the second electric push rod; one end of the support rotating rod hinged to the second connecting plate; by controlling the extension of the telescopic part of the second electric push rod, the multiple support rotating rods rotate and support the borehole sidewall, allowing the first electric push rod to remain in the borehole; a sampling cylinder fixedly connected to the telescopic part of the first electric push rod, through which mud and concrete are sampled in layers. This invention effectively solves the pain points of existing cast-in-place pile grouting monitoring methods, which cannot visually observe the layering of mud and concrete and lack secondary monitoring methods.

Description

Technical Field

[0001] This invention relates to the field of grouting monitoring technology for cast-in-place piles, and more particularly to a monitoring device for grouting of cast-in-place piles. Background Technology

[0002] During the grouting process of bored piles, mud or laitance may exist above the concrete grouting surface, making the entire grouting process invisible and the grouting depth impossible to determine.

[0003] Existing technologies include the rope measuring method, the Guanwuyou Mini concrete over-pouring monitoring instrument, and the ultrasonic monitoring method proposed in patent application CN220747037U (an ultrasonic monitoring device for the liquid level of a cast-in-place pile), which can measure the depth of concrete pouring; however, the above methods have the following problems: they cannot achieve visual observation of mud and concrete, and lack secondary monitoring means. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, such as the inability to visually observe mud and concrete and the lack of secondary monitoring methods, this invention provides a monitoring device for grouting of cast-in-place piles, comprising: a first electric actuator; a horizontal sensor installed in the first electric actuator; a first connecting plate fixedly connected to the upper side of the fixed part of the first electric actuator, and a second connecting plate fixedly connected to the lower side; multiple second electric actuators hinged to the first connecting plate; a support rotating rod hinged to the telescopic part of the second electric actuator; one end of the support rotating rod hinged to the second connecting plate; by controlling the extension of the telescopic part of the second electric actuator, the multiple support rotating rods rotate and support the borehole sidewall, allowing the first electric actuator to remain in the borehole; a sampling cylinder fixedly connected to the telescopic part of the first electric actuator, through which mud and concrete are sampled in layers.

[0005] More preferably, it also includes a plate assembly and a power assembly; the sampling tube is connected to three plate assemblies from top to bottom; after the sampling tube takes a sample, the power assembly inserts the plate assembly into the sampling tube, the first and third plate assemblies seal the sample in the sampling tube from top to bottom, and the second plate assembly performs a layering operation on the sample in the sampling tube.

[0006] More preferably, the power assembly includes a third electric push rod and a connecting plate; the third electric push rod is installed on the side of the sampling cylinder, the telescopic part of the third electric push rod is fixedly connected to the connecting plate, and the insert plate assembly is fixedly connected to the connecting plate.

[0007] More preferably, the insert plate assembly includes a connecting frame and a rotating plate, the connecting frame is fixed to the connecting plate, and the rotating plate is rotatably connected to the connecting frame; when the sampling tube is inserted into the mud and concrete, the rotating plate rotates to a vertical position, and when the insert plate assembly is inserted into the sampling tube, the rotating plate rotates to a horizontal position.

[0008] More preferably, it also includes a first magnet and a second magnet; the first magnet is fixedly connected to the rotating plate, and the second magnet is fixedly connected to the side of the sampling cylinder; the first magnet and the second magnet attract each other, so that the rotating plate is initially vertically attached to the sampling cylinder.

[0009] More preferably, the upper end of the first electric push rod is provided with a lifting hole.

[0010] More preferably, the top of the sampling cylinder is provided with a through hole to ensure smooth sampling during sampling.

[0011] More preferably, an elastic water storage component is provided on the upper side of the second connecting plate; a connecting pipe is connected to the bottom of the elastic water storage component, and a water spraying component is connected to the bottom of the connecting pipe; the water spraying component is plugged into and adapted to the shape of the sampling tube, and the outside of the sampling tube is rinsed by the water spraying component.

[0012] More preferably, a transparent panel is provided on one side of the sampling tube.

[0013] More preferably, the bottom of the connecting plate has a detachable connecting block and a fourth electric push rod, the telescopic part of the fourth electric push rod is fixedly connected to the connecting block, and the connecting block is connected to the third insert plate assembly.

[0014] The beneficial effects of this invention are: this invention effectively solves the pain points of existing grouting monitoring methods for cast-in-place piles, which cannot visually observe the layering of mud and concrete and lack secondary monitoring methods.

[0015] This invention features a layered and visualized sampling structure. The sampling tube has a transparent panel on one side and a through hole on the top. Combined with a three-layer insert plate assembly, it constructs a secondary monitoring system that allows for intuitive sampling and observation, unlike existing indirect measurement methods. The sampling tube and insert plate assembly can accurately preserve the layered structure of mud and concrete, allowing staff to directly observe and verify the grouting depth through the transparent panel.

[0016] The insertion plate assembly of this invention adopts a design that combines a rotating plate and magnetic attraction. In the initial state, the rotating plate is held vertical by magnetic attraction, which reduces insertion resistance and avoids agitation of the medium. After the sampling tube is inserted, it automatically rotates to a horizontal position to complete the separation, preserving the layering effect of mud and concrete and improving monitoring accuracy.

[0017] This invention achieves stable fixation of the device in boreholes of different diameters through the coordinated action of a second electric push rod, a support rotating rod, and a horizontal sensor, ensuring the vertical posture of the sampling cylinder. Combined with the lifting hole design, it can precisely control the sampling depth and has strong adaptability.

[0018] The present invention features an elastic water storage component, a connecting pipe, and a water spray assembly that enable automatic rinsing of the sampling tube, reducing manual labor intensity; the detachable insert plate (connecting plate, connecting block) design facilitates separate sampling and testing of mud and concrete, improving the comprehensiveness of monitoring. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the upper part of the present invention;

[0021] Figure 3 This is a schematic diagram of the lower half of the present invention;

[0022] Figure 4 for Figure 3 The state diagram shows that the insert assembly is inserted into the sampling cylinder at this time;

[0023] Figure 5 This is a schematic diagram of the insert assembly of the present invention;

[0024] Figure 6 for Figure 3 The state diagram shows that the rotating plate has rotated to a vertical position.

[0025] Figure 7 for Figure 3 Enlarged view of area A;

[0026] Figure 8 This is a schematic diagram of the structure of the elastic water storage component, connecting pipe, and water spray assembly of the present invention.

[0027] Reference numerals: 1-First electric push rod, 2-Second electric push rod, 3-Support rotating rod, 4-Sampling cylinder, 5-Insertion plate assembly, 6-Third electric push rod, 7-Connecting plate, 8-Fourth electric push rod, 1a-First connecting plate, 1b-Second connecting plate, 1c-Lifting hole, 4a-Through hole, 4b-Transparent panel, 5a-Connecting frame, 5b-Rotating plate, 7a-Connecting block, 11-First magnet, 12-Second magnet, 21-Elastic water storage component, 22-Connecting pipe, 23-Water spray assembly. Detailed Implementation

[0028] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] Example 1: As Figures 1-8 As shown, a monitoring device for grouting of cast-in-place piles includes a first electric push rod 1, a second electric push rod 2, a support rotating rod 3, and a sampling cylinder 4;

[0030] like Figure 2As shown, a horizontal sensor is installed in the first electric push rod 1; a first connecting plate 1a is fixedly connected to the upper side of the fixed part of the first electric push rod 1, and a second connecting plate 1b is fixedly connected to the lower side; multiple second electric push rods 2 are hinged to the first connecting plate 1a; a support rotating rod 3 is hinged to the telescopic part of the second electric push rod 2; one end of the support rotating rod 3 is hinged to the second connecting plate 1b; by controlling the extension of the telescopic part of the second electric push rod 2, the multiple support rotating rods 3 are rotated and supported on the borehole sidewall, allowing the first electric push rod 1 to stay at a certain height in the borehole; a sampling cylinder 4 is fixedly connected to the telescopic part of the first electric push rod 1, and the mud and concrete are sampled in layers through the sampling cylinder 4. This invention, through the cooperation of the second electric push rod 2, the support rotating rod 3 and the horizontal sensor, achieves stable fixation of the device in boreholes of different diameters, ensures the vertical posture of the sampling cylinder 4, and has strong adaptability.

[0031] It also includes a plate assembly 5 and a power assembly; the sampling cylinder 4 has three plate assemblies 5 inserted from top to bottom; after the sampling cylinder 4 takes a sample, the power assembly inserts the plate assembly 5 into the sampling cylinder 4, the first and third plate assemblies 5 seal the sample in the sampling cylinder 4 from top to bottom, and the second plate assembly 5 performs a layering operation on the sample in the sampling cylinder 4.

[0032] The power assembly includes a third electric push rod 6 and a connecting plate 7; the third electric push rod 6 is installed on the side of the sampling cylinder 4, and the connecting plate 7 is fixedly connected to the telescopic part of the third electric push rod 6; the insert plate assembly 5 is fixedly connected to the connecting plate 7.

[0033] like Figure 5 As shown, the insert plate assembly 5 includes a connecting frame 5a and a rotating plate 5b. The connecting frame 5a is fixed to the connecting plate 7, and the rotating plate 5b is rotatably connected to the connecting frame 5a. When the sampling cylinder 4 is inserted into the mud and concrete, the rotating plate 5b rotates to a vertical position to reduce the insertion resistance and avoid stirring the mud and concrete. When the insert plate assembly 5 is inserted into the sampling cylinder 4, the rotating plate 5b rotates to a horizontal position.

[0034] It also includes a first magnet 11 and a second magnet 12; the first magnet 11 is fixedly connected to the rotating plate 5b, and the second magnet 12 is fixedly connected to the side of the sampling cylinder 4; the first magnet 11 and the second magnet 12 attract each other magnetically, so that the rotating plate 5b is initially vertically attached to the sampling cylinder 4.

[0035] It should be noted that the upper end of the first electric push rod 1 is provided with a lifting hole 1c. The traction rope is connected to the lifting hole 1c, and the present invention is hoisted into the borehole.

[0036] The top of the sampling cylinder 4 is provided with a through hole 4a to ensure smooth sampling during sampling.

[0037] After measuring the concrete depth (i.e., the depth of the separation between mud and concrete) using methods such as rope measurement, the Worry-Free Mini Concrete Over-pouring Monitoring Instrument, or ultrasonic monitoring, if visual observation of the mud and concrete is required for secondary monitoring, this invention can be put into use.

[0038] When using this invention, first connect the traction rope of the traction device to the lifting hole 1c, then hoist the invention into the borehole. Determine the descent depth of the invention based on the length of the traction rope. Stop releasing the traction rope when the sampling cylinder 4 reaches the specified depth. The specified depth is less than the measured depth of the concrete, so that the main structure of the invention is located in the mud layer.

[0039] Then, the extension and retraction of multiple second electric push rods 2 are controlled to extend, causing multiple support rods 3 to rotate. When the support rods 3 rotate, their ends move toward the sidewall of the borehole, thereby allowing the multiple support rods 3 to rotate and support the sidewall of the borehole, thus fixing the invention in the borehole. At the same time, the extension and retraction of each extension and retraction of the second electric push rod 2 is adjusted by the horizontal sensor set in the first electric push rod 1, so that the first electric push rod 1 is in a vertically downward state. This allows the sampling tube 4 to be inserted vertically downward for sampling.

[0040] Then, the telescopic part of the first electric push rod 1 is pushed down, which drives the sampling cylinder 4 to move downward and insert into the mud and concrete to perform sampling operation on the mud and concrete. The mud and concrete enter the sampling cylinder 4. At this time, the depth of the second insert plate assembly 5 is the measured concrete depth.

[0041] Subsequently, to preserve the layered structure of the mud and concrete for later visual observation, such as... Figure 3 , Figure 4 The third electric push rod 6 is controlled to retract, and then the three insert plate assemblies 5 are driven to insert into the sampling cylinder 4 through the connecting plate 7. In this way, the first and third insert plate assemblies 5 seal the sample in the sampling cylinder 4 from the top and bottom to prevent subsequent contamination, and the second insert plate assembly 5 performs a layering operation on the sample in the sampling cylinder 4.

[0042] When the measured concrete depth matches the actual concrete depth, the second insert plate component 5 just separates the mud from the concrete, indicating that the measurement effect of the rope method, the Mini Concrete Over-pouring Monitoring Instrument, or the ultrasonic monitoring method is good; otherwise, it indicates that the measurement effect is poor.

[0043] Furthermore, to reduce the resistance and agitation caused when the horizontally positioned insert assembly 5 is lowered and inserted into the mud and concrete, the layered structure of the mud and concrete is altered; such as... Figure 6As shown, the rotating plate 5b can be rotated to a vertical position beforehand to change the insertion area of ​​the insert plate assembly 5 (rotating plate 5b). This results in less resistance and less agitation when the insert plate assembly 5 is inserted into the mud and concrete. After sampling in the sampling tube 4, when the insert plate assembly 5 is inserted into the sampling tube 4, the rotating plate 5b is restricted by the insertion hole of the sampling tube 4 and rotates back to a horizontal position. At this time, the sample to be sampled is already located inside the sampling tube 4. The agitation of the mud and concrete outside the sampling tube 4 by the rotation of the rotating plate 5b cannot affect the layered structure of the sampled sample. Furthermore, the present invention additionally provides a first magnet 11 and a second magnet 12. The magnetic attraction of the first magnet 11 and the second magnet 12 is used to maintain the vertical position of the rotating plate 5b when it is inserted.

[0044] Then, the telescopic part of the second electric push rod 2 is retracted, the support rod 3 is no longer supported on the inner wall of the borehole, and then the traction device is controlled to retrieve the traction rope to remove the invention from the borehole.

[0045] Furthermore, an elastic water storage component 21 is provided on the upper side of the second connecting plate 1b; a connecting pipe 22 is connected to the bottom of the elastic water storage component 21, and a water spraying component 23 is connected to the bottom of the connecting pipe 22; the water spraying component 23 is fitted into the sampling cylinder 4 and the outside of the sampling cylinder 4 is rinsed through the water spraying component 23.

[0046] A transparent panel 4b is provided on one side of the sampling tube 4, through which the layering of the sample can be directly observed.

[0047] After the sampling tube 4 leaves the borehole, as Figure 8 As shown, the telescopic part of the controllable second electric push rod 2 can be further retracted, thereby driving the support rotating rod 3 to rotate towards the first electric push rod 1. Multiple support rotating rods 3 squeeze the elastic water storage component 21, squeezing out the water that has been added to the elastic water storage component 21 beforehand. The water flows into the water spraying component 23 through the connecting pipe 22, and then is sprayed onto the sampling cylinder 4 through the water spraying component 23 to wash away the mud and concrete on the surface of the sampling cylinder 4. Subsequently, the staff can observe the layering of mud and concrete through the transparent panel 4b to determine whether the concrete depth is correct. This completes the secondary monitoring of the concrete depth. The operation is convenient, and it can be observed without manual rinsing. Moreover, the water spraying component 23 directly rinses the sampling cylinder 4, using less water and less water flowing into the borehole.

[0048] The bottom of the connecting plate 7 has a detachable connecting block 7a and also includes a fourth electric push rod 8. The telescopic part of the fourth electric push rod 8 is fixedly connected to the connecting block 7a, and the connecting block 7a is connected to the third insert plate assembly 5.

[0049] When it is necessary to separate the mud and concrete for further testing, such as Figure 4As shown, at this time, only the extension part of the fourth electric push rod 8 can be controlled to extend, thereby driving the connecting block 7a to separate from the connecting plate 7. The connecting block 7a drives the third insert plate assembly 5 to separate from the sampling cylinder 4, and then the concrete located below can be taken out from the sampling cylinder 4 first. Then, the extension part of the third electric push rod 6 can be controlled to extend, driving the connecting plate 7, the first and second insert plate assemblies 5 to move, and then the mud can be taken out.

[0050] In summary, this invention effectively solves the problems of existing grouting monitoring methods for cast-in-place piles, which cannot visually observe the layering of mud and concrete and lack secondary monitoring methods.

[0051] This invention features a layered and visualized sampling structure. The sampling cylinder 4 has a transparent panel 4b on one side and a through hole 4a on the top. Together with the three-layer insert plate assembly 5, it constructs a secondary monitoring system for indirect measurement using existing technologies, while providing intuitive sampling and observation. The sampling cylinder 4 and the insert plate assembly 5 can accurately preserve the layered structure of mud and concrete, and staff can directly observe and verify the grouting depth through the transparent panel 4b.

[0052] The insertion plate assembly 5 of this invention adopts a design that combines a rotating plate 5b with magnetic attraction. In the initial state, the rotating plate 5b is made vertical by magnetic attraction, which reduces the insertion resistance and avoids agitation of the medium. After being inserted into the sampling tube 4, it automatically rotates to the horizontal position to complete the separation, preserving the layering effect of mud and concrete and improving the monitoring accuracy.

[0053] This invention achieves stable fixation of the device in boreholes of different diameters through the collaboration of the second electric push rod 2, the support rotating rod 3 and the horizontal sensor, ensuring the vertical posture of the sampling cylinder 4. Combined with the design of the lifting hole 1c, the sampling depth can be precisely controlled, and it has strong adaptability.

[0054] The elastic water storage component 21, connecting pipe 22 and water spraying component 23 of this invention enable automatic rinsing of the sampling cylinder 4, reducing manual labor intensity; the design of the detachable insert plate (connecting plate 7, connecting block 7a) facilitates separate sampling and testing of mud and concrete, improving the comprehensiveness of monitoring.

[0055] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A monitoring device for grouting of cast-in-place piles, characterized in that it includes: There is a first electric push rod (1); a horizontal sensor is installed in the first electric push rod (1); a first connecting plate (1a) is fixedly connected to the upper side of the fixed part of the first electric push rod (1), and a second connecting plate (1b) is fixedly connected to the lower side; multiple second electric push rods (2) are hinged on the first connecting plate (1a); a support rotating rod (3) is hinged to the telescopic part of the second electric push rod (2); one end of the support rotating rod (3) is hinged to the second connecting plate (1b); by controlling the extension of the telescopic part of the second electric push rod (2), multiple support rotating rods (3) are rotated and supported on the side wall of the borehole, so that the first electric push rod (1) stays in the borehole; a sampling tube (4) is fixedly connected to the telescopic part of the first electric push rod (1), and the mud and concrete are sampled in layers through the sampling tube (4).

2. The monitoring device for grouting of cast-in-place piles according to claim 1, characterized in that, It also includes a plate assembly (5) and a power assembly; the sampling tube (4) has three plate assemblies (5) inserted from top to bottom; after sampling in the sampling tube (4), the plate assembly (5) is inserted into the sampling tube (4) by the power assembly, the first and third plate assemblies (5) seal the sample in the sampling tube (4) from top to bottom, and the second plate assembly (5) performs a layering operation on the sample in the sampling tube (4).

3. The monitoring device for grouting of cast-in-place piles according to claim 2, characterized in that, The power assembly includes a third electric push rod (6) and a connecting plate (7); the third electric push rod (6) is installed on the side of the sampling cylinder (4), the telescopic part of the third electric push rod (6) is fixedly connected to the connecting plate (7), and the insert plate assembly (5) is fixedly connected to the connecting plate (7).

4. A monitoring device for grouting of cast-in-place piles according to claim 2, characterized in that, The insert plate assembly (5) includes a connecting frame (5a) and a rotating plate (5b). The connecting frame (5a) is fixed to the connecting plate (7), and the rotating plate (5b) is rotatably connected to the connecting frame (5a). When the sampling tube (4) is inserted into the mud and concrete, the rotating plate (5b) rotates to a vertical position. When the insert plate assembly (5) is inserted into the sampling tube (4), the rotating plate (5b) rotates to a horizontal position.

5. A monitoring device for grouting of cast-in-place piles according to claim 4, characterized in that, It also includes a first magnet (11) and a second magnet (12); the first magnet (11) is fixed on the rotating plate (5b), and the second magnet (12) is fixed on the side of the sampling tube (4); the rotating plate (5b) is initially vertically attached to the sampling tube (4) by the mutual magnetic attraction of the first magnet (11) and the second magnet (12).

6. A monitoring device for grouting of cast-in-place piles according to claim 1, characterized in that, The upper end of the first electric push rod (1) is provided with a lifting hole (1c).

7. The monitoring device for grouting of cast-in-place piles according to claim 1, characterized in that the top of the sampling cylinder (4) is provided with a through hole (4a) to ensure smooth sampling during sampling.

8. A monitoring device for grouting of cast-in-place piles according to claim 5, characterized in that, The second connecting plate (1b) is provided with an elastic water storage component (21) on the upper side; the bottom of the elastic water storage component (21) is connected to a connecting pipe (22), and the bottom of the connecting pipe (22) is connected to a water spraying component (23); the water spraying component (23) is fitted into the shape of the sampling tube (4), and the outside of the sampling tube (4) is rinsed by the water spraying component (23).

9. A monitoring device for grouting of cast-in-place piles according to claim 8, characterized in that, A transparent panel (4b) is provided on one side of the sampling tube (4).

10. A monitoring device for grouting of cast-in-place piles according to claim 9, characterized in that, The bottom of the connecting plate (7) has a pluggable and separable connecting block (7a), and also includes a fourth electric push rod (8). The telescopic part of the fourth electric push rod (8) is fixedly connected to the connecting block (7a), and the connecting block (7a) is connected to the third insert plate assembly (5).

Images