Anchor rod grouting compactness detection device

Abstract

The utility model provides an anchor rod grouting compactness detection device, which relates to the technical field of anchor rod construction, and comprises an anchor rod mechanism, a density detection mechanism and a presentation mechanism, the anchor rod mechanism extends into grouting liquid to guide the density detection mechanism into the grouting liquid, and the presentation mechanism feeds back the density data of the grouting liquid. The anchor rod mechanism comprises a rod body with a thread structure, the rod body is linearly and horizontally arranged, a plurality of equidistant thread grooves are formed in the surface of the outer wall of the rod body, and the plurality of equidistant thread grooves are used for dredging slurry and putting the slurry into the slurry to reduce resistance; by means of the equidistant thread grooves and the rod body, it is ensured that the anchor rod used for detecting the density in the grouting stage can be smoothly placed into grouting forming slurry, the movable sleeve and the sleeve are combined, mechanism autorotation is avoided after the rod body is rotationally placed, and data reading is smoother.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor rod construction, and more specifically, relates to an anchor rod grouting density detection device. Background Art

[0002] High-strength precision-rolled threaded steel anchor rods are rod-shaped objects anchored in rock or stable soil layers to maintain the stability of the surrounding rock. They have the advantages of simple support technology, good support results, low material consumption and support costs, and convenient transportation and construction. They are widely used in various support and reinforcement projects such as coal mines, tunnels, highway engineering slope protection, dams, deep foundation pits, etc.

[0003] It is primarily used as a reinforcement support method in surface engineering projects such as slopes and deep rock foundation pits, as well as in tunnel and quarry construction. Rods made of metal, wood, polymer, or other materials are driven into pre-drilled holes in the surface rock mass or the rock mass surrounding the chamber. The rod's unique structure, tail anchor plates (optional), or its connection with slope protection nets stabilizes the slope for support. It offers advantages such as low cost, effective support, ease of operation, flexibility, and minimal construction headroom.

[0004] After searching, it was found that the application number is: CN202122592418.4, which is a device for detecting the density of grouting of corrugated pipes. The content is: A device for detecting the density of grouting of corrugated pipes, including a host computer control end, a signal collector, two signal receiving sensors and two wireless excitation units. The two signal receiving sensors are respectively arranged on the anchors at both ends of the prestressed duct to be inspected. The two wireless excitation units are respectively adsorbed on the two ends of the steel strands at both ends of the prestressed duct to be inspected. The signal collector is respectively connected to the two signal receiving sensors through a dual-core microphone signal. The host computer control end is respectively connected to the signal collector and the two wireless excitation units through wireless transmission signals. The utility model adds a WIFI module and applies wireless transmission technology to the entire detection process from the excitation unit sending the excitation command signal to the completion of signal acquisition and signal analysis and processing, which saves manpower and material resources, realizes single-person operation, reduces accidental errors in the detection process, and greatly improves the efficiency and accuracy of detection;

[0005] However, a large number of built-in modules that affect the actual detection effect are susceptible to corrosion.

[0006] Based on the above, the inventors found that there are the following problems:

[0007] 1) When traditional finished rolled anchor bolts are injected into the grouting, it is generally difficult to judge the density of the anchor bolt grouting after grouting. Since the grouting has been completed or is in progress, it is difficult to detect it in the later stage. In addition, it is not suitable for detecting the density of the anchor bolt grouting stage in areas with steep terrain such as slopes.

[0008] 2) When obtaining the internal fine-rolled or slope protection anchor construction, the grouting density is a common situation, and the spatial detection plan is difficult to implement, which makes it difficult to obtain or evaluate the internal grouting effect in the later stage. There is no data acquisition method, which makes the construction easy to rework. In addition, the construction inspection and effectiveness of the anchor used in slope construction is more important. Considering that each construction in the steep slope area is relatively dangerous, the location of the anchor placed each time and the density of the slope protection are carefully considered. The main reason is that the conventional slope protection has a slight gap space, which is prone to corrosion due to the large contact surface with water, affecting the strength of the slope protection.

[0009] Therefore, in view of this, the existing structure and defects are studied and improved, and an anchor grouting density detection device is provided in order to achieve more practical value. Utility Model Content

[0010] In order to solve the above technical problems, the utility model provides an anchor grouting density detection device to solve the problem of cooling treatment of current large-scale mechanical equipment.

[0011] The purpose and effect of the anchor grouting density detection device of the utility model are achieved by the following specific technical means:

[0012] It includes an anchor mechanism, a density detection mechanism and a presentation mechanism;

[0013] The anchor mechanism extends into the grouting liquid to guide the density detection mechanism to the grouting liquid;

[0014] The presentation mechanism feeds back slurry density data;

[0015] Density detection agencies detect and obtain data;

[0016] The invention is characterized in that: the anchor mechanism comprises a rod body with a threaded structure, the rod body is arranged in a straight line and horizontally, and the outer wall surface of the rod body is provided with a plurality of equidistant thread grooves, the plurality of equidistant thread grooves guide the slurry into the slurry to reduce resistance;

[0017] The end of the rod body is provided with a movable sleeve, and the movable sleeve and the end of the rod body rotate in situ;

[0018] The density detection mechanism is arranged at the other end of the rod body, and comprises a fixing seat arranged at the other end of the rod body, and an annular sleeve is sleeved on the surface of the fixing seat.

[0019] As a preferred solution of the present invention: an elastic offset groove is provided at the end of the annular sleeve, an elastic telescopic rod is provided in the middle of the elastic offset groove, a detection cone head is installed at the end position of the elastic telescopic rod, and a density sensing probe with a detection function is installed inside the detection cone head. The density sensing probe head is attached to the inner wall of the detection cone head to obtain slurry density data.

[0020] As a preferred solution of the present invention: a support rod is provided on the inner side wall of the phase density sensing probe, the density sensing probe is triggered by a frequency trigger switch, and the frequency trigger switch is installed at the bottom of the support rod, wherein a pressure sensor is installed at the bottom of the frequency trigger switch;

[0021] The bottom of the pressure sensor is connected to the elastic telescopic rod.

[0022] As a preferred solution of the present invention: a sleeve is further installed in the middle of the anchor mechanism, and the outer walls of the sleeve are respectively installed with limiting washers, and the inner side walls of several limiting washers are integrated by a square plate.

[0023] As a preferred solution of the present invention: the presentation mechanism includes a concave clamper arranged on the bottom side of the square plate, a data receiver for data acquisition and presentation is installed in the middle slot of the concave clamper, and the receiving unit of the data receiver is connected to the data acquisition line.

[0024] As a preferred solution of the present invention: the end of the data acquisition line passes through the rod body and is electrically connected to the pressure sensor along the inner wall of the rod. An elastic connecting wire tube is also provided on the back of the data receiver, and the end of the elastic connecting wire tube is connected to a presentation panel.

[0025] As a preferred solution of the present invention: handles for manual grasping are symmetrically provided on both sides of the presentation panel, a data presentation screen is embedded in the middle of the presentation panel, and a mobile power supply is provided on the back of the data presentation screen.

[0026] As a preferred solution of the present invention: the pressure sensor is electrically connected to the data receiver, the data receiver is electrically connected to the presentation panel, and the presentation panel is electrically connected to the mobile power supply.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] The beneficial effects of the utility model are:

[0029] 1) The equidistant thread grooves and rod body ensure that the anchor rod used for density testing can be smoothly placed into the grouting slurry during the grouting stage. The combination of the movable sleeve and the sleeve prevents the presentation mechanism from rotating after the rod body is placed under controlled rotation, making data reading smoother;

[0030] 2) A concave clamp data receiver and data acquisition line are used to form an information acquisition closed loop. The data receiver analyzes the density sensing probe and the density of the position when it extends to the inside of the grouting to determine whether there are huge voids and gaps in a certain area. In addition, the frequency detection continuously acquires data during movement to form a data chain. The frequency trigger switch and pressure sensor operate synchronously and can accurately trigger the density sensing probe to detect the grouting area at the location each time the moving friction vibration is generated, thereby improving the effect of detecting and obtaining the grouting density. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is an overall schematic diagram of an anchor grouting density detection device of the utility model.

[0032] Figure 2 This is a schematic diagram of the frequency trigger switch structure of an anchor grouting density detection device of the utility model;

[0033] Figure 3 This is a schematic diagram of the structure of a data display screen for an anchor grouting density detection device of the utility model;

[0034] Figure 4 This is a schematic diagram of the square plate structure of an anchor grouting density detection device of the utility model;

[0035] Figure 5 This is a schematic diagram showing the structure of an anchor grouting density detection device of the utility model;

[0036] Figure 6 This is a structural diagram of a density detection mechanism of an anchor grouting density detection device of the utility model;

[0037] Figure 7 The utility model is a structural schematic diagram of a support rod of an anchor grouting density detection device.

[0038] In the figure, the corresponding relationship between the component names and the drawing numbers is as follows:

[0039] 1. Anchor mechanism; 11. Rod body; 12. Equidistant thread grooves; 13. Movable sleeve; 14. Sleeve; 15. Limiting washer; 16. Square plate;

[0040] 2. Density detection mechanism; 21. Fixing seat; 22. Annular sleeve; 23. Elastic offset slot; 24. Elastic telescopic rod; 25. Detection cone; 251. Density sensing probe; 26. Frequency trigger switch; 27. Support rod; 28. Pressure sensor;

[0041] 3. Presentation mechanism; 31. Concave clamp; 32. Data receiver; 33. Data acquisition line; 34. Presentation panel; 35. Handle; 36. Data presentation screen; 37. Mobile power supply. DETAILED DESCRIPTION

[0042] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0043] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0045] Example:

[0046] Please refer to the attached drawings in the manual Figure 1-Figure 7 As shown: The utility model provides an anchor grouting density detection device, comprising an anchor mechanism 1, a density detection mechanism 2 and a presentation mechanism 3;

[0047] The anchor mechanism 1 extends into the grouting liquid to guide the density detection mechanism 2 to the grouting liquid;

[0048] Presentation mechanism 3 feeds back slurry density data;

[0049] Density detection mechanism 2 detects and obtains data;

[0050] Anchor mechanism 1: includes a rod body 11 with a threaded structure, the rod body 11 is arranged in a straight horizontal direction, and a plurality of equidistant thread grooves 12 are formed on the outer wall surface of the rod body 11, so that the plurality of equidistant thread grooves 12 guide the slurry into the slurry to reduce resistance;

[0051] A movable sleeve 13 is provided at the end of the rod body 11, and the movable sleeve 13 and the end of the rod body 11 rotate in situ;

[0052] The density detection mechanism 2 is arranged at the other end of the rod body 11 , and includes a fixing seat 21 arranged at the other end of the rod body 11 . An annular sleeve 22 is sleeved on the surface of the fixing seat 21 .

[0053] In this embodiment: an elastic offset groove 23 is provided at the end of the annular sleeve 22, an elastic telescopic rod 24 is provided in the middle of the elastic offset groove 23, a detection cone head 25 is installed at the end position of the elastic telescopic rod 24, and a density sensing probe 251 with a detection function is installed inside the detection cone head 25. The density sensing probe 251 is attached to the inner wall of the detection cone head 25 to obtain slurry density data.

[0054] The detection cone head 25 and the density sensing probe head 251 cooperate to obtain the internal space conditions of the grouting in a timely manner, and when a huge crack or gap occurs in a certain internal space of the grouting, it can be discovered and repaired in time.

[0055] In this embodiment: the inner wall of the adjacent density sensing detection head 251 is provided with a support rod 27, and the density sensing detection head 251 is triggered by a frequency trigger switch 26 to transmit frequency, and the frequency trigger switch 26 is installed at the bottom of the support rod 27, wherein a pressure sensor 28 is installed at the bottom of the frequency trigger switch 26.

[0056] The pressure sensor 28 is a trigger switch, and the frequency trigger switch 26 controls the derived density sensing probe 251 to continuously emit frequency ultrasonic waves. Similar to flaw detection, the data can be presented more clearly and the judgment is more convenient.

[0057] The bottom of the pressure sensor 28 is connected to the elastic telescopic rod 24 .

[0058] The elastic telescopic rod 24 is mainly used as a trigger scheme. Each time the anchor mechanism 1 is transported to a certain length and then stretched backward, the frequency trigger switch 26 and the elastic telescopic rod 24 are smoothly extended and triggered to ensure that the data can be obtained in time.

[0059] In this embodiment, a sleeve 14 is further installed in the middle of the anchor mechanism 1 , and limiting washers 15 are respectively installed on the outer wall of the sleeve 14 . The inner side walls of several limiting washers 15 are integrated with a square plate 16 .

[0060] The main purpose of using the sleeve 14 and the limiting washer 15 is to uniformly share the weight borne by the sleeve 14 between the limiting washer 15 and the square plate 16.

[0061] In this embodiment: the presentation mechanism 3 includes a concave clamper 31 arranged on the bottom side of the square plate 16, and a data receiver 32 for data acquisition and presentation is installed in the middle slot of the concave clamper 31. The receiving unit of the data receiver 32 is connected to the data acquisition line 33.

[0062] The concave clamp 31 and the data receiver 32 are used in conjunction with each other so that data can be acquired smoothly. In addition, the data acquisition line 33 smoothly feeds back the density information of the detection cone head 25 to the terminal for presentation.

[0063] In this embodiment, the end of the data acquisition line 33 passes through the rod body 11 and is electrically connected to the pressure sensor 28 along the inner wall of the rod body 11. An elastic connecting wire tube is also provided on the back of the data receiver 32, and the end of the elastic connecting wire tube is connected to the presentation panel 34.

[0064] The elastic connecting line tube is provided to enable information to be retrieved and presented again.

[0065] Handles 35 for manual grasping are symmetrically provided on both sides of the presentation panel 34 . A data presentation screen 36 is embedded in the middle of the presentation panel 34 , and a mobile power supply 37 is provided on the back of the data presentation screen 36 .

[0066] It is convenient to manually grasp the handle 35 during operation, making the operation more convenient.

[0067] In this embodiment, the pressure sensor 28 is electrically connected to the data receiver 32 , the data receiver 32 is electrically connected to the presentation panel 34 , and the presentation panel 34 is electrically connected to the mobile power supply 37 .

[0068] The mobile power supply 37 eliminates the problem of poor power supply at construction sites, allowing testing and transfer at any time.

[0069] Step 1: inserting the anchor mechanism 1 into the grouting structure being injected;

[0070] At this time, the rod body 11 enters the grouting interior more smoothly from the groove position of the equidistant thread groove 12 to reduce resistance. The personnel use the pipe fitting of the movable sleeve 13 to achieve extension. By setting one end of the pipe fitting of the movable sleeve 13, it is ensured that the rod body 11 rotates along one end of the equidistant thread groove 12 and then extends autonomously into the concrete structure that is being grouted or has been grouted.

[0071] Step 2: Detect and obtain grouting density;

[0072] When rotating, the frequency trigger switch 26 is continuously triggered. After the elastic telescopic rod 24 behind the frequency trigger switch 26 is elastically triggered, the pressure sensor 28 is continuously triggered to receive pressure, and a chain reaction occurs:

[0073] The pressure sensor 28 again guides the frequency trigger switch 26 to continuously scan and detect the grouting area here, and the signal guidance of the support rod 27 ensures that the density sensing probe 251 continuously scans the density trend of the cement concrete;

[0074] Step 3: Capture of density data;

[0075] Because it is a frequency, the rod 11 will trigger the extension and contraction of the frequency trigger switch 26 along the slurry, and data will be recorded every few seconds. This data record will be transmitted back to the data acquisition line 33 through the data wire at the rear end of the pressure sensor 28;

[0076] This density detection method can provide sound radiation feedback for ultrasonic detection or electromagnetic waves with transmission function;

[0077] Step 4: Waveform display;

[0078] Because the density data can be used to determine whether there is a void in a certain area of ​​the overall grouting density according to the waveform of each extension, this method can intuitively see the feedback line graph or peak graph;

[0079] The data receiver 32 receives the electrical signal and converts it into data, which is then transmitted to the data presentation screen 36 by the data acquisition line 33. The personnel can see it as long as they keep holding the handle 35. In addition, the sleeve 14 prevents the contradictory situation that the square plate 16 and the display screen will also move when the rod body 11 moves.

[0080] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. An anchor grouting density detection device, comprising an anchor mechanism (1), a density detection mechanism (2) and a presentation mechanism (3); The anchor mechanism (1) extends into the grouting liquid to guide the density detection mechanism (2) to reach the grouting liquid; The presenting mechanism (3) feeds back the slurry density data; The density detection mechanism (2) detects and obtains data; Its characteristics are: An anchor mechanism (1): comprising a rod body (11) with a threaded structure, the rod body (11) being arranged in a straight line and horizontally, and a plurality of equidistant thread grooves (12) being provided on the outer wall surface of the rod body (11), the plurality of equidistant thread grooves (12) guiding slurry into the slurry to reduce resistance; The end of the rod body (11) is provided with a movable sleeve (13), and the movable sleeve (13) and the end of the rod body (11) rotate in situ; The density detection mechanism (2) is arranged at the other end of the rod body (11), and comprises a fixing seat (21) arranged at the other end of the rod body (11), and an annular sleeve (22) is sleeved on the surface of the fixing seat (21).

2. The anchor grouting density detection device according to claim 1, characterized in that: The end of the annular sleeve (22) is provided with an elastic offset slot (23), the middle of the slot of the elastic offset slot (23) is provided with an elastic telescopic rod (24), the end of the elastic telescopic rod (24) is provided with a detection cone head (25), and the inside of the detection cone head (25) is provided with a density sensing probe (251) with a detection function, and the density sensing probe (251) is attached to the inner wall of the detection cone head (25) to obtain slurry density data.

3. The anchor grouting density detection device according to claim 2, characterized in that: The inner side wall of the phase density sensing probe (251) is provided with a support rod (27), the frequency of the density sensing probe (251) is triggered by a frequency trigger switch (26), and the frequency trigger switch (26) is installed at the bottom of the support rod (27), wherein the bottom of the frequency trigger switch (26) is installed with a pressure sensor (28); The bottom of the pressure sensor (28) is connected to the elastic telescopic rod (24).

4. The anchor grouting density detection device according to claim 1, characterized in that: A sleeve (14) is also installed in the middle of the anchor rod mechanism (1), and the outer wall of the sleeve (14) is respectively installed with a limiting gasket (15), and the inner side walls of several limiting gaskets (15) are integrated by a square plate (16).

5. The anchor grouting density detection device according to claim 1, characterized in that: The presenting mechanism (3) comprises a concave holder (31) arranged on the bottom side of the square plate (16); a data receiver (32) for data acquisition and presentation is installed at a middle slot of the concave holder (31); a receiving unit of the data receiver (32) is connected to a data acquisition line (33).

6. The anchor grouting density detection device according to claim 5, characterized in that: The end of the data acquisition line (33) passes through the rod body (11) and is electrically connected to the pressure sensor (28) along the inner wall of the rod body (11). The back of the data receiver (32) is also provided with an elastic connecting wire tube, and the end of the elastic connecting wire tube is connected to the presentation panel (34).

7. The anchor grouting density detection device according to claim 6, characterized in that: Handles (35) for manual grasping are symmetrically provided on both sides of the presentation panel (34), a data presentation screen (36) is embedded in the middle of the presentation panel (34), and a mobile power supply (37) is provided on the back of the data presentation screen (36).

8. The anchor grouting density detection device according to claim 3, characterized in that: The pressure sensor (28) is electrically connected to a data receiver (32), the data receiver (32) is electrically connected to a presentation panel (34), and the presentation panel (34) is electrically connected to a mobile power supply (37).

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