Concrete hardness ultrasonic detector

Abstract

The invention relates to the technical field of concrete detection, in particular to a concrete hardness ultrasonic detector which comprises an ultrasonic detector body and a probe and further comprises a mounting plate, a sliding groove penetrating through the upper side and the lower side of the mounting plate is formed in the mounting plate, a positive and negative screw rod is rotationally arranged in the sliding groove, and one end of the positive and negative screw rod rotationally penetrates out of the sliding groove. A rotating disc is fixedly connected to the base; two sliding blocks are in threaded connection with the positive and negative screw rod located in the sliding groove, the top end and the bottom end of each sliding block penetrate out of the sliding groove and are fixedly connected with clamping blocks, the free ends of the two clamping blocks located at the two ends of the same sliding block are connected with the same connecting piece, the connecting piece is provided with an installation hole, and the probe is detachably installed in the installation hole. By arranging the positive and negative screw rods and the sliding blocks, adjustment can be conducted according to the width of a wall column or a cross beam, so that the clamping blocks located on the two sliding blocks are matched with each other to clamp the two sides of the concrete wall column or the cross beam, and then the device is fixedly installed at the corresponding position.

Description

Technical Field

[0001] The invention relates to the technical field of concrete detection, and in particular to an ultrasonic detector for concrete hardness. Background Art

[0002] Concrete structures are widely used in construction projects, and the quality of concrete will not only affect the safety of the building structure but also the cost of the construction project. Therefore, concrete quality testing is one of the important links in concrete production. At present, most concrete ultrasonic detectors are used to test concrete. The speed and frequency of ultrasonic waves propagating in concrete reflect the performance, internal structure and composition of concrete materials. The elastic modulus and density of concrete are closely related to the wave speed and frequency, that is, the higher the strength, the higher the speed and frequency of the ultrasonic waves.

[0003] An ultrasonic rebound detector is generally composed of a control unit and two probes. When using ultrasonic waves to detect the strength of concrete and detect cracks hidden in the concrete, two people are required to stand on both sides of the concrete wall and place the two probes close to the corresponding concrete walls. The control unit then controls the work and readings, which results in a large amount of manpower consumed in the detection process. In addition, when the detection position is high, such as wall columns or beams, the staff is required to use auxiliary tools to lift them to a higher position and fix them. Raising the arms for a long time will lead to a decrease in blood supply to the arm arteries, resulting in muscle tension, pain and numbness. If you are not careful, the probe will fall out of your hand. The probe can easily be broken if it falls from a height, which will cause certain losses. Summary of the invention

[0004] The purpose of the present invention is to provide a concrete hardness ultrasonic detector to solve the problem that the concrete ultrasonic detector in the prior art requires the cooperation of multiple people when detecting concrete, resulting in a large amount of manpower consumed in the detection process.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A concrete hardness ultrasonic detector comprises an ultrasonic detector body and a probe electrically connected to the ultrasonic detector body, and also comprises a mounting plate, on which a sliding groove is provided which runs through the upper and lower sides thereof, a forward and reverse screw rod is rotatably arranged in the sliding groove, one end of the forward and reverse screw rod is rotatably passed through the sliding groove, and is fixedly connected to a rotating disk; two sliding blocks are threadedly connected to the forward and reverse screw rod located inside the sliding groove, the top and bottom ends of the sliding blocks are both arranged to pass through the sliding groove, and are fixedly connected to clamping blocks, the free ends of the clamping blocks are both arranged to face the same horizontal direction, the free ends of the two clamping blocks located at both ends of the same sliding block are connected to the same connecting piece, the connecting piece is provided with a mounting hole, and the probe can be detachably installed in the mounting hole.

[0006] A further technical solution is that the clamping blocks are each provided with sliding bar holes passing through both ends thereof, and the two clamping blocks located at both ends of the same sliding block are slidably connected to the same U-shaped frame through the sliding bar holes, and the open ends of the U-shaped frame respectively pass through the corresponding sliding bar holes and are connected to the connecting piece.

[0007] A further technical solution is that a fixing hole connected to the sliding bar hole is opened on the outer side of the clamping block, and a fixing screw is threadedly connected to the fixing hole; and a plurality of anti-slip points are fixedly provided on the inner side surface of the clamping block.

[0008] A further technical solution is that an adjustment hole connected to the mounting hole is provided on the side of the connecting piece away from the mounting plate, the adjustment hole is threadedly connected to an adjusting screw with one end inserted into the mounting hole, and the adjusting screw is rotatably connected to a fastener arranged in a curved surface at one end placed in the mounting hole; a connecting groove is provided on the side of the fastener close to the adjusting screw, a rotating bearing is provided in the connecting groove, the outer ring of the rotating bearing is connected to the groove wall of the connecting groove, and the inner ring of the rotating bearing is connected to the end of the adjusting screw inserted into the mounting hole.

[0009] A further technical solution is that a limiting hole connected to the mounting hole is opened on the side of the connecting piece away from the mounting plate, a limiting rod is slidably connected in the limiting hole, one end of the limiting rod passes through the mounting hole and is fixedly connected to the fastener.

[0010] A further technical solution is that a plurality of rubber points are provided on the inner wall of the mounting hole and on the side of the fastener away from the adjusting screw.

[0011] A further technical solution is that both ends of the forward and reverse screw rods are rotatably arranged in the sliding groove through support bearings.

[0012] A further technical solution is that the rotating disk is threadedly connected with locking screws that pass through both sides thereof.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting the positive and negative screw rods and sliders, it is easy to adjust the distance between the clamps installed on the two sliders, and then it can be adjusted according to the width of the wall column or beam, so that the clamps located on the two sliders cooperate with each other to clamp the two sides of the concrete wall column or beam, and then the device is fixedly installed in the corresponding position. At the same time, it can drive the two connecting parts to move relative to each other, and then adjust the distance between the two probes to detect the strength of the concrete, thereby improving the applicability of the device body.

[0014] 2. By setting the sliding bar hole and the U-shaped frame, the U-shaped frame can be slid according to the distance between the detection position and the mounting plate, so that the U-shaped frame drives the connecting part to move to the detection position, and then the probe installed in the mounting hole moves to the detection position, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of Example 1 of the present invention.

[0016] Figure 2 It is a partially cutaway perspective schematic diagram of the mounting plate of the present invention.

[0017] Figure 3 It is a schematic diagram of the connection between the slider, the U-shaped member and the connecting member of the present invention.

[0018] Figure 4 It is a cross-sectional view of the connecting piece of the present invention.

[0019] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle.

[0020] Icons: 1-mounting plate, 2-sliding groove, 3-positive and negative screws, 4-rotating disk, 5-slider, 6-clamp, 7-connecting piece, 8-mounting hole, 9-sliding bar hole, 10-U-shaped frame, 101-open end, 11-fixing screw, 12-anti-slip point, 13-adjusting hole, 14-adjusting screw, 15-fastener, 16-connecting groove, 17-rotating bearing, 18-limiting hole, 19-limiting rod, 20-rubber point, 21-support bearing, 22-locking screw. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] Example 1 See also Figure 1 , Figure 2As shown, the present invention is an ultrasonic detector for concrete hardness, comprising an ultrasonic detector body and a probe electrically connected to the ultrasonic detector body, two probes are provided, the ultrasonic detector body and the probe electrical connection and the working principle are all prior art in the art, and will not be described in detail here, and also comprises a mounting plate 1, a sliding groove 2 is provided on the mounting plate 1 and runs through the upper and lower sides thereof, a positive and negative screw rod 3 is rotatably provided in the sliding groove 2, one end of the positive and negative screw rod 3 rotates out of the sliding groove 2, and is fixedly connected to a rotating disk 4; two sliders 5 are threadedly connected to the positive and negative screw rod 3 located inside the sliding groove 2, the above-mentioned two sliders and the positive and negative screw rod are all common technical knowledge known to those skilled in the art, and those skilled in the art can directly obtain the corresponding installation relationship and structure according to common knowledge, the top and bottom ends of the slider 5 are both set out of the sliding groove 2, and are fixedly connected with a clamping block 6, the free ends of the clamping block 6 are both set in the same horizontal direction, the free ends of the two clamping blocks 6 located at both ends of the same slider 5 are connected with the same connecting member 7, and the connecting member 7 is provided with a mounting hole 8, and the probe can be detachably installed in the mounting hole 8.

[0023] When the present solution is in use, the probe is mounted on the mounting hole 8, and the positive and negative screw rods 3 are driven to rotate by rotating the rotating disk 4, and the two sliders 5 are respectively threadedly engaged with the positive and negative screw rods 3, so that the sliders 5 are close to each other, driving the clamping blocks 6 to be close to each other, so that the clamping blocks 6 respectively located on the two sliders 5 cooperate with each other to clamp the two sides of the concrete wall column or beam, and then the device is fixedly installed in the corresponding position. At the same time, when the clamping blocks 6 located on the two sliders 5 cooperate with each other to clamp the two sides of the concrete wall column or beam, the two probes will be driven to move against each other and then contact and cling to the surface walls on both sides of the wall column or beam, so as to facilitate subsequent detection. It should be noted that The point is that when the probe is installed on the mounting hole 8, the probe can be adjusted to ensure that the probe can contact the surface wall of the concrete. By setting the positive and negative screw rods 3 and the slider 5, the spacing between the clamping blocks 6 installed on the two sliders 5 can be easily adjusted, and then it can be adjusted according to the width of the wall column or the beam. At the same time, the two connecting parts 7 can be driven to move relative to each other, and then the distance between the two probes can be adjusted to detect the strength of the concrete, thereby improving the applicability of the device body. When using the device, only one staff member is needed to complete the detection of the corresponding detection position, which reduces labor costs and improves detection efficiency.

[0024] Example 2 Based on the above embodiments, see Figure 1 , Figure 3As shown, the clamping blocks 6 are provided with sliding bar holes 9 passing through both ends thereof, and the two clamping blocks 6 located at both ends of the same sliding block 5 are slidably connected to the same U-shaped frame 10 through the sliding bar holes 9, and the open ends 101 of the U-shaped frame 10 respectively pass through the corresponding sliding bar holes 9 and are connected to the connecting piece 7, and the outer side of the clamping block 6 is provided with a fixing hole connected to the sliding bar hole 9, and the fixing hole is threadedly connected with a fixing screw 11; a plurality of anti-slip points 12 are fixedly provided on the inner side surface of the clamping block 6, and the anti-slip points 12 can be made of rubber. It should be noted that when using the device, the side of the clamping block 6 in contact with the concrete is the inner side, and the side away from the inner side is the outer side.

[0025] When the present solution is in use, by setting the sliding bar hole 9 and the U-shaped frame 10, the U-shaped frame 10 can be slid according to the spacing between the detection position and the mounting plate 1, so that the U-shaped frame 10 drives the connecting piece 7 to move to the detection position, and then the probe installed in the mounting hole 8 moves to the detection position, thereby improving the practicality of the device. When the sliding U-shaped frame 10 moves the probe to the detection position, the fixing screw 11 is tightened so that the fixing screw 11 squeezes the U-shaped frame 10, thereby making the U-shaped frame 10 relatively fixed to the clamping block 6, thereby avoiding misalignment of the two probes. At the same time, the U-shaped frame 10 can keep synchronous movement with the slider 5, and by setting the anti-slip point 12, the friction force when the clamping block 6 contacts and fits tightly against the outer wall of the concrete can be increased, thereby improving the stability of the device fixed in the corresponding position.

[0026] Example 3 Based on the above embodiments, see Figure 4 , Figure 5 As shown, an adjustment hole 13 connected to the mounting hole 8 is provided on the side of the connecting member 7 away from the mounting plate 1, and the adjustment hole 13 is threadedly connected to an adjustment screw 14 with one end inserted into the mounting hole 8, and the end of the adjustment screw 14 placed in the mounting hole 8 is rotatably connected to a fastener 15 arranged in a curved surface; a connecting groove 16 is provided on the side of the fastener 15 close to the adjusting screw 14, and a rotating bearing 17 is provided in the connecting groove 16, and the outer ring of the rotating bearing 17 is connected to the groove wall of the connecting groove 16, and the inner ring of the rotating bearing 17 is connected to the end of the adjusting screw 14 inserted into the mounting hole 8 In actual use, the probe is passed through the corresponding mounting hole 8, and the adjusting screw 14 is rotated so that the fastener 15 moves to squeeze the probe, and then the probe is squeezed and fixed. It should be noted that the side of the fastener 15 that contacts the probe can be set according to the shape of the probe to facilitate better fit, squeeze and fix the probe. By setting a rotating bearing 17 so that the adjusting screw 14 is rotatably connected to the fastener 15, it can be avoided that when the adjusting screw 14 is rotated, the fastener 15 follows the adjusting screw 14 to rotate, so that the fastener 15 cannot fit and squeeze the probe well.

[0027] As a preferred embodiment, a limiting hole 18 connected to the mounting hole 8 is opened on the side of the connecting member 7 away from the mounting plate 1, and a limiting rod 19 is slidably connected in the limiting hole 18. One end of the limiting rod 19 passes through the mounting hole 8 and is fixedly connected to the fastener 15. By setting the limiting rod 19 and the limiting hole 18, the fastener 15 is limited to prevent the fastener 15 from rotating with the adjusting screw 14.

[0028] As a preferred embodiment, a plurality of rubber points 20 are provided on the inner wall of the mounting hole 8 and on the side of the fastener 15 away from the adjusting screw 14. By providing the rubber points 20, the contact friction with the probe can be increased, and at the same time, a certain buffering effect can be played on the probe to prevent the probe from being damaged by excessive squeezing.

[0029] As a preferred embodiment, both ends of the forward and reverse screw rods 3 are rotatably arranged in the sliding groove 2 through support bearings 21 respectively. By providing the support bearings 21, the stability of the forward and reverse screw rods 3 during rotation can be ensured.

[0030] As a preferred embodiment, the rotating disk 4 is threadedly connected with locking screws 22 passing through both sides thereof. By setting the locking screws 22, when the clamping blocks 6 located on the two sliding blocks 5 cooperate with each other to clamp the two sides of the concrete wall column or the beam, the locking screws 22 can be rotated so that the screws squeeze the outer wall of the mounting plate 1, so that the rotating disk 4 and the mounting plate 1 are relatively fixed, thereby preventing the rotating disk 4 or the forward and reverse screws 3 from rotating, affecting the stability of the clamping blocks 6 cooperating with each other to clamp the two sides of the concrete wall column or the beam.

[0031] Although the present invention is described herein with reference to a number of illustrative embodiments of the present invention, it will be appreciated that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, drawings, and claims, a variety of variations and modifications may be made to the components and / or layout of the subject combination layout. In addition to the variations and modifications made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A concrete hardness ultrasonic detector, comprising an ultrasonic detector body and a probe electrically connected to the ultrasonic detector body, characterized in that: The invention also comprises a mounting plate (1), wherein the mounting plate (1) is provided with a sliding groove (2) penetrating the upper and lower sides thereof, wherein a forward and reverse screw rod (3) is rotatably arranged in the sliding groove (2), wherein one end of the forward and reverse screw rod (3) is rotatably passed through the sliding groove (2) and is fixedly connected to a rotating disk (4); two sliders (5) are threadedly connected to the forward and reverse screw rod (3) located inside the sliding groove (2), wherein the top and bottom ends of the sliders (5) are both passed through the sliding groove (2) and are fixedly connected to clamping blocks (6), wherein the free ends of the clamping blocks (6) are both arranged to face the same horizontal direction, and the free ends of the two clamping blocks (6) located at the two ends of the same slider (5) are connected to the same connecting piece (7), wherein the connecting piece (7) is provided with a mounting hole (8), and the probe can be detachably mounted in the mounting hole (8).

2. The ultrasonic concrete hardness detector according to claim 1, characterized in that: The clamping blocks (6) are each provided with a sliding bar hole (9) penetrating through both ends thereof. The two clamping blocks (6) located at both ends of the same sliding block (5) are slidably connected to the same U-shaped frame (10) through the sliding bar hole (9). The open ends (101) of the U-shaped frame (10) respectively pass through the corresponding sliding bar holes (9) and are connected to the connecting member (7).

3. The ultrasonic concrete hardness detector according to claim 2, characterized in that: A fixing hole connected to the sliding bar hole (9) is provided on the outer side of the clamp block (6), and a fixing screw (11) is threadedly connected to the fixing hole; and a plurality of anti-slip points (12) are fixedly provided on the inner side surface of the clamp block (6).

4. The ultrasonic concrete hardness detector according to claim 1, characterized in that: An adjusting hole (13) communicating with the mounting hole (8) is formed on a side of the connecting member (7) away from the mounting plate (1); an adjusting screw (14) having one end inserted into the mounting hole (8) is threadedly connected to the adjusting hole (13); one end of the adjusting screw (14) disposed in the mounting hole (8) is rotatably connected to a fastener (15) arranged in a curved surface; a connecting groove (16) is formed on a side of the fastener (15) close to the adjusting screw (14); a rotating bearing (17) is provided in the connecting groove (16); an outer ring of the rotating bearing (17) is connected to a groove wall of the connecting groove (16); and an inner ring of the rotating bearing (17) is connected to an end of the adjusting screw (14) inserted into the mounting hole (8).

5. The ultrasonic concrete hardness detector according to claim 4, characterized in that: A limiting hole (18) communicating with the mounting hole (8) is provided on a side of the connecting member (7) away from the mounting plate (1), a limiting rod (19) being slidably connected in the limiting hole (18), one end of the limiting rod (19) passing through the mounting hole (8) and being fixedly connected to the fastener (15).

6. The ultrasonic concrete hardness detector according to claim 4, characterized in that: A plurality of rubber points (20) are provided on the inner wall of the mounting hole (8) and on the side of the fastener (15) away from the adjusting screw (14).

7. The ultrasonic concrete hardness detector according to claim 1, characterized in that: Both ends of the forward and reverse screw rods (3) are rotatably disposed in the sliding groove (2) via support bearings (21) respectively.

8. The ultrasonic concrete hardness detector according to claim 1, characterized in that: The rotating disk (4) is threadedly connected with locking screws (22) that pass through both sides thereof.

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