Chemical grouting hole detection device

Abstract

The utility model belongs to the technical field of hydraulic engineering, and particularly relates to a chemical grouting hole detection device which comprises an inclination angle measuring disc, a connector, a depth measuring scale and a grip. A solid rolling steel ball abutting against the outer wall of the fixed shaft is placed in the rotating steel ring, a scale pointer is connected to the rotating steel ring, the depth measuring ruler comprises a sleeve and a measuring strip, and the sleeve is welded to the top end of the measuring strip and located in the center. The scale pointer drives the rolling steel ring to rotate around the center of the inclination angle measuring disc under the action of earth gravity, and the included angle between the scale pointer and the measuring strip is the inclination angle of the grouting hole, so that the inclination angle of the grouting hole can be presented in a datamation form, and the depth of the grouting hole is measured through the measuring strip. Finally, whether the inclination angle of the grouting hole meets the construction organization design requirement or not is judged through calculation.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy engineering technology, and in particular relates to a chemical grouting hole detection device. Background Technology

[0002] Chemical grouting involves injecting a chemical grout into the strata or fissures to fill, diffuse, gel, and solidify them, thereby increasing stratum strength, reducing stratum permeability, and preventing stratum deformation, thus ensuring the normal operation of buildings and improving their safety and reliability.

[0003] To standardize the construction of chemical grouting and improve its quality, the state has formulated relevant construction specifications for chemical grouting, such as the "Technical Specification for Repair and Reinforcement of Hydraulic Concrete Structures" (DL / T 5315-2014) and the "Specification for Chemical Grouting Construction of Hydraulic Structures" (DL / T 5406-2010). These specifications clearly define the requirements for grouting materials, methods, procedures, and grouting holes. Before each construction phase, on-site tests must be conducted to determine the technical parameters such as the inclination angle of the grouting holes, the number of rows, the row spacing, the hole spacing, the hole diameter, the length of the grouting section, and the grouting depth.

[0004] However, in actual construction, there is no corresponding testing device to check the quality of the chemical grouting holes. The quality of the chemical grouting holes depends entirely on the workers' self-control during the construction process, which increases the uncontrollability of the quality of chemical grouting projects.

[0005] This invention relates to a chemical grouting hole detection device to solve the above problems. Utility Model Content

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A chemical grouting hole detection device includes an inclination angle measuring disc, a connector, a depth measuring ruler, and a handle;

[0008] The tilt angle measuring disc includes a fixed shaft, with a transparent dial and a rotating steel ring connected to both ends of the fixed shaft. Inside the rotating steel ring is a solid rolling steel ball that abuts against the outer wall of the fixed shaft, and a scale pointer is connected to the rotating steel ring.

[0009] The depth measuring gauge includes a sleeve and a measuring strip, with the sleeve welded to the top of the measuring strip and located at the center.

[0010] The connector is installed on one side of the fixed shaft, and the connecting sleeve is connected to the connector.

[0011] The grip is mounted on the other side of the fixed shaft.

[0012] Preferably, the transparent dial is provided with an angle scale around the center, the angle scale is from 0° to 90°, the angle scale is accurate to 1°, and the interval between the angle scales is 15°.

[0013] Preferably, the solid rolling steel balls are smooth, and gaps exist between the adjacent solid rolling steel balls.

[0014] Preferably, the center of gravity of the scale pointer is located at the end away from the rotating steel ring.

[0015] Preferably, the joint and the connecting sleeve are connected through screw threads.

[0016] Preferably, the measuring strip is a cylindrical steel strip, and the scale on the measuring strip is accurate to 1 mm.

[0017] Preferably, the handle includes a handle tail end and a handle, one end of the handle is connected with the fixed shaft, and the other end of the handle is connected with the handle tail end.

[0018] Preferably, the surface of the handle is provided with anti-skid stripes.

[0019] Preferably, the handle tail end is in the shape of a truncated cone in cross section.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] 1. When the inclination angle measuring disc is used, the scale pointer is driven by the gravity to rotate the rolling steel ring around the center of the inclination angle measuring disc, the scale pointer always points to the direction of the gravity, the included angle between the scale pointer and the measuring strip is the inclination angle of the grouting hole, the inclination angle of the grouting hole can be presented in the form of data, the depth of the grouting hole is measured through the measuring strip, and finally whether the inclination angle of the grouting hole meets the requirement of the construction organization design is determined through calculation.

[0022] 2. The grouting hole diameter is calculated through the depth and the maximum inclination depth of the grouting hole, and whether the grouting hole diameter meets the requirement of the construction organization design and whether the grouting nozzle purchased is suitable is determined.

[0023] 3. The inclination angle measuring disc and the depth measuring scale are connected and fixed in a repeatable dismounting mode, are convenient to carry after dismounting, and different lengths of the measuring scale can be selected according to different working conditions, which is beneficial to the actual engineering operation. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic view of the utility model.

[0025] Figure 2 is a schematic view of the inclination angle measuring disc of the utility model.

[0026] Figure 3 is the schematic diagram of the joint of the utility model.

[0027] Figure 4 is the schematic diagram of the handle of the utility model.

[0028] Figure 5 is the schematic diagram of the depth measuring ruler of the utility model.

[0029] Figure 6 is the schematic diagram under the use state of the utility model.

[0030] The label name in the drawing:

[0031] 1, the inclination angle measuring disc; 101, the fixed shaft; 102, the solid rolling steel ball; 103, the rotating steel ring; 104, the scale pointer; 105, the transparent dial plate;

[0032] 2, the joint;

[0033] 3, the depth measuring ruler; 301, the sleeve; 302, the measuring strip;

[0034] 4, the handle; 401, the handle tail end; 402, the handle. DETAILED DESCRIPTION

[0035] The specific embodiment of the utility model is described in further detail below in combination with the drawings and examples. The following examples or drawings are used to illustrate the utility model, but not to limit the scope of the utility model.

[0036] A chemical grouting hole detection device, as shown in Figures 1 to 5 It comprises an inclination angle measuring disc 1, a joint 2, a depth measuring ruler 3 and a handle 4.

[0037] The inclination angle measuring disc 1 comprises a fixed shaft 101, the fixed shaft 101 is connected with a transparent dial plate 105 and a rotating steel ring 103 at both ends, the solid rolling steel ball 102 is placed in the rotating steel ring 103 and abuts against the outer wall of the fixed shaft 101, and the scale pointer 104 is connected on the rotating steel ring 103.

[0038] The depth measuring ruler 3 comprises a sleeve 301 and a measuring strip 302, the sleeve 301 is welded at the top end of the measuring strip 302 and is located at the center position.

[0039] The joint 2 is installed on one side of the fixed shaft 101, and the sleeve 301 is connected with the joint 2.

[0040] The handle 4 is installed on the other side of the fixed shaft 101, and the central axis of the handle 4 coincides with that of the measuring strip 302.

[0041] When the inclination angle measuring disc 1 is in operation, the scale pointer 104 drives the rolling steel ring 103 to rotate around the center of the inclination angle measuring disc 1 under the action of the earth's gravity, the scale pointer 104 always points to the direction of the earth's gravity, the angle between the scale pointer 104 and the measuring strip 302 is the inclination angle of the grouting hole, and then the inclination angle of the grouting hole can be presented in a data form, the depth of the grouting hole is measured through the measuring strip 302, and finally whether the inclination angle of the grouting hole meets the requirements of the construction organization design is determined through calculation.

[0042] When the quality of the chemical grouting hole is inspected, the inclination angle, the depth and the diameter of the grouting hole are measured, so that the quality of the grouting hole is presented in a data form, and is directly compared with the construction organization design and the construction specification requirements, and the quality of the chemical grouting construction is further controlled.

[0043] As shown in Figure 2 and 3 , the transparent dial plate 105 is printed with angle scales distributed around the center, the value range of the angle scales is 0° to 90°, the four sections of the angle scales are connected and circled on the transparent dial plate 105, the measured angle is accurate to 1°, and the interval between the angle scales is 15°.

[0044] The solid rolling steel ball 102 has a smooth surface and a certain gap between adjacent solid rolling steel balls 102, and the friction between the solid rolling steel ball 102 and the rotating steel ring 103 and the fixed shaft 101 is small.

[0045] The center of gravity of the scale pointer 104 is located at the end away from the rotating steel ring 103.

[0046] As shown in Figure 1 and Figure 5 , the installation mode between the joint 2 and the connecting sleeve 301 is threaded connection, the measuring strip 302 is a cylindrical steel strip, the scale on the measuring strip 302 is accurate to 1mm, and the measuring strip 302 has three length specifications of 50cm, 100cm and 150cm.

[0047] As shown in Figure 1 and Figure 4 , the handle 4 includes a handle tail end 401 and a handle grip 402, one end of the handle grip 402 is connected with the fixed shaft 101, and the other end of the handle grip 402 is connected with the handle tail end 401.

[0048] The surface of the handle grip 402 is provided with anti-skid stripes, and the cross section of the handle tail end 401 is in the shape of a circular truncated cone, so as to prevent the device from being dropped during operation.

[0049] The measurement method is as follows:

[0050] Step one: check the grouting hole parameter requirement in construction organization design, select and assemble the measuring strip 302 with the length matching the grouting hole depth, and insert the measuring strip 302 into the grouting hole to be measured closely to the grouting hole side wall.

[0051] Step two: check the tilt angle measuring disc 1, the included angle between the scale pointer 104 and the measuring strip 302 is the tilt angle of the grouting hole, record the reading as the grouting hole tilt angle α, and the reading accuracy is estimated to 1°.

[0052] Step three: check the scale on the measuring strip 302 at the same time, record the reading as the hole depth a, and the reading accuracy is estimated to 1mm.

[0053] Step four: adjust the placement angle of the measuring strip 302 in the grouting hole, place the measuring strip 302 along the diagonal line of the grouting hole, control the measuring strip 302 to rotate around the grouting hole axis for one circle in the placement state, check the maximum scale reading on the measuring strip 302 in the process, record the reading as the maximum tilt depth b of the grouting hole, and the reading accuracy is estimated to 1mm.

[0054] Step five: check the maximum value reading of the included angle between the scale pointer 104 and the measuring strip 302 at the position where the maximum scale reading of the measuring strip 302 appears, record the reading as β.

[0055] Step six: calculate the grouting hole diameter c = b x cos(β-α) according to the Pythagorean theorem principle.

[0056] Step seven: judge whether the grouting hole meets the relevant construction requirements according to the known data of the grouting hole tilt angle α, hole depth a and hole diameter c.

[0057] The above is only the preferred embodiment of the present application, and does not limit the present application in any form, and any simple modification and equivalent change of the above embodiment according to the technical essence of the present application all fall within the protection scope of the present application.

Claims

1. A chemical grout hole detection apparatus, characterized by: The utility model relates to a multifunctional surveying tool, including tilt angle measuring disc (1), joint (2), depth measuring scale (3), handle (4); The tilt angle measuring disc (1) includes fixed shaft (101), both ends of fixed shaft (101) are connected with transparent dial (105) and rotating steel ring (103), solid rolling steel ball (102) is placed in rotating steel ring (103) and is in contact with the outer wall of fixed shaft (101), and scale pointer (104) is connected on rotating steel ring (103); The depth measuring scale (3) includes sleeve (301) and measuring strip (302), and sleeve (301) is welded at the top of measuring strip (302) and is located at the center position; The joint (2) is installed on one side of fixed shaft (101) and is connected with sleeve (301); The handle (4) is installed on the other side of fixed shaft (101).

2. A chemical grout hole detection apparatus according to claim 1, wherein: The transparent dial (105) is printed with angle scale around the center, the value of angle scale ranges from 0 to 90 degrees, the accurate value of measured angle is 1 degree, and the interval between angle scales is 15 degrees.

3. The chemical grout hole detection device of claim 1, wherein: The surface of solid rolling steel ball (102) is smooth, and there is a certain gap between adjacent solid rolling steel balls (102).

4. A chemical grout hole detection apparatus according to claim 3, wherein: The center of gravity of scale pointer (104) is located at the end away from rotating steel ring (103).

5. The chemical grout hole detection apparatus of claim 1, wherein: The installation mode between joint (2) and connecting sleeve (301) is screw connection.

6. The chemical grout hole detection apparatus of claim 1, wherein: The measuring strip (302) is cylindrical steel strip, and the scale on measuring strip (302) is accurate to 1mm.

7. The chemical grout hole detection apparatus of claim 1, wherein: The handle (4) includes handle tail end (401) and handle (402), one end of handle (402) is connected with fixed shaft (101), and the other end of handle (402) is connected with handle tail end (401).

8. A chemical grout hole detection apparatus according to claim 7, wherein: The surface of handle (402) is provided with anti-skid stripes.

9. A chemical grout hole detection apparatus according to claim 7, wherein: The cross section of handle tail end (401) is circular truncated cone type.

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