Concrete rebound apparatus

Abstract

The utility model relates to the technical field of concrete detection, and provides a concrete rebound apparatus which comprises a rebound tester provided with a detection end, and further comprises a positioning frame provided with a positioning plate and four supporting legs, the four supporting legs are uniformly distributed on the lower side of the positioning plate, the four supporting legs are opposite in pairs, the supporting legs are provided with bottom contact parts, and the bottom contact parts are arranged on the positioning plate. The bottom contact part is used for abutting against a to-be-detected surface, and the rebound tester is arranged on the positioning plate in a sliding manner; the number of the connecting ropes is multiple, two connecting ropes are arranged between the two opposite bottom touching parts, the two connecting ropes are arranged at intervals, one end of each connecting rope is connected with one bottom touching part, the other end of each connecting rope is connected with the other bottom touching part, the connecting ropes are located on the lower sides of the bottom touching parts, and the detection end is located between the two connecting ropes. According to the technical scheme, the flatness of the detection point and the peripheral plane is detected and prompted, and the measurement error of the resiliometer is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete detection, in particular to a concrete rebound tester. Background Art

[0002] Concrete rebound testers are generally used to test the strength of general building components. For example, when testing the strength of poured concrete, workers need to hold the rebound tester and keep it perpendicular to the surface to be tested, slowly move it toward the surface to be tested, and then read the reading in the reading area of ​​the rebound tester to complete the measurement of a point. Although the operation process is simple, it is required that the rebound tester is always perpendicular to the surface to be tested. When workers hold it in their hands, it is easy to tilt, which affects the final measurement result. In the prior art, multiple telescopic rods are generally used for support, so that the rebound tester is perpendicular to the surface to be tested, and the rebound tester is pressed against the surface to be tested. When testing the surface, the telescopic rod moves and retracts along with the movement of the rebound hammer. However, the telescopic rod is generally small in diameter and has its own accuracy problems. The coaxiality may not be high. At the same time, the existing vertical positioning method relies on the peripheral plane of the testing point as a vertical reference, that is, the rebound hammer is perpendicular to the peripheral plane of the testing point through the telescopic rod. This method has certain reference significance and is simple in structure and easy to use. However, if the peripheral plane is not basically parallel to the testing point, the rebound hammer may still not be perpendicular to the testing point. The existing technology lacks detection of the flatness of the testing point and the peripheral plane, which is easy to cause measurement errors. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a concrete rebound test hammer for the above-mentioned technical deficiencies, which can detect and prompt the flatness of the detection point and the surrounding plane, thereby reducing the measurement error of the rebound test hammer.

[0004] The technical solution adopted by the utility model is: to provide a concrete rebound tester, including a rebound tester, the rebound tester has a detection end, and also includes:

[0005] A positioning frame, comprising a positioning plate and four legs, wherein the four legs are evenly distributed on the lower side of the positioning plate and are opposite to each other in pairs, wherein the legs have a bottom contact portion, and the bottom contact portion is used to abut against a surface to be tested, and the rebound tester is slidably arranged on the positioning plate;

[0006] There are several connecting ropes, two of which are arranged between two opposite contact bottoms, the two connecting ropes are arranged at intervals, one end of the connecting rope is connected to one contact bottom, and the other end is connected to the other contact bottom, the connecting rope is located at the lower side of the contact bottom, and the detection end is located between the two connecting ropes.

[0007] To further optimize the technical solution, the bottom contact portion has a plug-in slot; the bottom contact portion also includes:

[0008] The foot pad is inserted in the insertion groove, and the lower end of the foot pad and the connecting rope are used to abut against the surface to be detected.

[0009] Further optimizing the technical solution, one end of the connecting rope is connected to the upper end of the bottom contact part, and the connecting rope is passed around from the side of the bottom contact part to the lower side of the bottom contact part; the upper end of the bottom contact part also has an adjustment groove, and the connecting rope passes over the adjustment groove; and further comprising:

[0010] A tensioning plate is inserted in the adjusting groove, and one end of the tensioning plate abuts against the lower side of the connecting rope for tensioning the connecting rope.

[0011] Further optimization of this technical solution also includes:

[0012] A cleaning member is arranged on the connecting rope and is located beside the detection end.

[0013] Further optimization of this technical solution also includes:

[0014] The sliding sleeve has an inner sleeve cavity, the rebound tester is sleeved and arranged in the inner sleeve cavity, and the sliding sleeve is slidably connected with the positioning plate.

[0015] To further optimize the technical solution, the side of the sliding sleeve is provided with an observation window.

[0016] To further optimize the technical solution, the sliding sleeve also has a sliding rod, and there are a plurality of the sliding rods, which are circumferentially distributed on the outside of the sliding sleeve; a guide tube is provided in the middle of the positioning plate, and the sliding sleeve is slidably connected to the guide tube.

[0017] Further optimizing the technical solution, the sliding rod has a first positioning hole and a second positioning hole, and the first positioning hole is located below the second positioning hole; and further comprising:

[0018] The elastic clamping column has a movable end, which is slidably arranged on the guide tube and abuts against one side of the slide rod. After sliding, the movable end approaches or moves away from the first positioning hole and the second positioning hole.

[0019] To further optimize the technical solution, one side of the guide tube has a side opening, and the side opening and the observation window are located on the same side.

[0020] The beneficial effects of the utility model are:

[0021] 1. The four contact bottoms are opposite to each other in pairs. Each group of opposite contact bottoms can be provided with a group of two connecting ropes. The main part of the connecting rope is located at the lower side of the contact bottom. The connecting rope is close to or abuts against the surface to be tested. By observing the change of the connecting rope and the gap with the eyes, it can be judged whether the point to be tested facing the detection end is roughly parallel to the peripheral plane in contact with the contact bottom. If the gap does not change much, it can be considered to be roughly parallel. At this time, the rebound tester is basically perpendicular to the surface to be tested, which is conducive to reducing measurement errors.

[0022] 2. The detection end is located between the two connecting ropes. The connection can be used to determine the detection point that the detection end is facing, and the alignment is more accurate and quick. When two sets of opposite touch bottoms are each provided with a set of two connecting ropes, the two sets of connecting ropes cross each other, and the middle position is a "mouth"-shaped frame structure formed by the cross, which is opposite to the detection end, and the alignment is more accurate.

[0023] 3. The connecting rope can also be used to scrape and clean the surface to be tested, reducing the impact of surface impurities on the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the structure of the utility model;

[0025] Figure 2 for Figure 1 The schematic diagram of the local enlarged structure at position I in the middle;

[0026] Figure 3 for Figure 1 Schematic diagram of the local enlarged structure at II in the middle;

[0027] Figure 4 This is a schematic diagram of the state of the rebound tester of the utility model after being pressed down;

[0028] Figure 5 This is a schematic diagram of the installation structure of the sliding sleeve and the guide tube of the utility model;

[0029] Figure 6 for Figure 5 Right view structural diagram;

[0030] Figure 7 It is a schematic diagram of the matching structure of the mobile end and the first positioning hole of the utility model;

[0031] Explanation of marks in the figure: 1. Rebound tester; 101. Detection end; 102. Reading area; 2. Positioning frame; 201. Positioning plate; 2011. Guide tube; 2012. Side opening; 202. Leg; 2021. Bottom contact; 2022. Plug-in slot; 2023. Foot pad; 2024. Adjustment slot; 3. Connecting rope; 4. Tensioning plate; 5. Cleaning part; 6. Sliding sleeve; 601. Inner sleeve cavity; 602. Observation window; 603. Sliding rod; 6031. First positioning hole; 6032. Second positioning hole; 7. Elastic clamping column; 701. Moving end. DETAILED DESCRIPTION

[0032] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0033] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0034] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0035] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0036] like Figure 1-7As shown, a concrete rebound tester includes a rebound tester 1, the rebound tester 1 has a detection end 101, and also includes: a positioning frame 2, having a positioning plate 201 and four legs 202, the four legs 202 are evenly distributed on the lower side of the positioning plate 201, and the four legs 202 are opposite to each other, the legs 202 have a bottom contact 2021, the bottom contact 2021 is used to abut against the surface to be detected, and the rebound tester 1 is slidably set on the positioning plate 201; there are a plurality of connecting ropes 3, two connecting ropes 3 are arranged between two opposite bottom contact 2021, the two connecting ropes 3 are arranged at intervals, one end of the connecting rope 3 is connected to one bottom contact 2021, and the other end is connected to the other bottom contact 2021, the connecting rope 3 is located on the lower side of the bottom contact 2021, and the detection end 101 is located between the two connecting ropes 3.

[0037] When in use, the four legs 202 are distributed at four positions on the lower side of the positioning plate 201, one each in the front, back, left and right. The four bottom contact parts 2021 are in contact with the surface to be detected. A group of two relative bottom contact parts 2021 are connected by two connecting ropes 3. The connecting ropes 3 are in a tensioned state. The position of the connecting rope 3 on the lower side of the bottom contact part 2021 can be close to the surface to be detected or in contact with the surface to be detected. The parallelism can be determined by observing the change in the gap between the connecting rope 3 and the ground. The connecting rope 3 is used to facilitate the tension setting, and the connecting rope 3 will not deform. If a plastic part or a metal plate is used to fix the two bottom contact parts 2021, the deformation of the connecting rope 3 will directly affect the contact with the surface to be detected, resulting in misjudgment. The connecting rope 3 can be a steel wire rope. If the gap between the connecting rope 3 and the surface to be detected changes greatly, it is judged that the detection point is not parallel to the surrounding plane. At this time, the legs 202 are perpendicular to the surrounding plane but cannot make the rebound tester 1 perpendicular to the point to be detected. The position of the legs 202 can be adjusted by circumferential rotation, or the position can be offset for detection.

[0038] Two opposite bottom portions 2021 form a group. Two connecting ropes 3 are provided on one group of bottom portions 2021. The two connecting ropes 3 are spaced apart and arranged in parallel and are in a tensioned state. The symmetrical arrangement of the two connecting ropes 3 can reduce the tilting of the bottom portion 2021 due to long-term unilateral force. One end of the connecting rope 3 is connected to one of the bottom portions 2021 in a group of bottom portions 2021, and the other end is connected to another of the bottom portions 2021 in the same group of bottom portions 2021. The connection form can be riveted fixation, bolted jacking, or plug-in connection. When two connecting ropes 3 on one group of bottom portions 2021 are provided on two groups of bottom portions 2021, the two groups of connecting ropes 3 are staggered, and a "mouth"-shaped frame structure is formed in the middle, which is directly opposite to the detection end 101, and can indicate the position of the detection point, and can better scrape and clean the surface of the detection point. The two groups of connecting ropes 3 can be stacked up and down.

[0039] Furthermore, the bottom portion 2021 has an insertion groove 2022; the bottom portion 2021 also includes: a foot pad 2023, which is inserted into the insertion groove 2022, and the lower end of the foot pad 2023 and the connecting rope 3 are both used to abut against the surface to be detected.

[0040] When in use, the contact bottom 2021 contacts the surface to be detected. The surface to be detected is generally a concrete surface, which is relatively rough and easy to wear the contact bottom 2021. The four contact bottoms 2021 are easily skewed due to different degrees of wear. Through the detachable foot pad 2023, small parts can be easily replaced after a certain wear and tear, and the consistency of the four legs 202 is maintained. The foot pad 2023 and the connecting rope 3 are both in contact with the surface to be detected, and the contact is more stable.

[0041] Furthermore, one end of the connecting rope 3 is connected to the upper end of the contact bottom 2021, and the connecting rope 3 goes around the side of the contact bottom 2021 to the lower side of the contact bottom 2021; the upper end of the contact bottom 2021 also has an adjustment groove 2024, and the connecting rope 3 passes over the adjustment groove 2024; it also includes: a tensioning plate 4, which is inserted into the adjustment groove 2024, and one end of the tensioning plate 4 abuts against the lower side of the connecting rope 3, for tensioning the connecting rope 3.

[0042] When in use, the connecting rope 3 is semi-wrapped and arranged on the bottom contact portion 2021. In the initial state, the connecting rope 3 can be in a tensioned state. The tensioning plate 4 is arranged to adjust the tensioning degree of the connecting rope 3. The tensioning plate 4 is inserted into the adjustment groove 2024, and the end of the connecting rope 3 is lifted up. The tensioning adjustment can be achieved by selecting tensioning plates 4 of different heights.

[0043] Furthermore, it also includes: a cleaning member 5 which is arranged on the connecting rope 3 and is located beside the detection end 101 .

[0044] When in use, the cleaning member 5 can be set to better clean the surface of the detection point. When only one set of connecting ropes 3 is set, the cleaning member 5 can be set on one or two connecting ropes 3. The cleaning member 5 can wrap the connecting ropes 3, but the thickness of the part located at the lower end of the connecting rope 3 is relatively small. When two sets of connecting ropes 3 are set, the connecting rope 3 on the upper side is raised at the "mouth"-shaped frame structure formed in the middle. The cleaning member 5 can be set on the connecting rope 3 on the upper side, with a certain gap from the surface to be detected, which is convenient for installation. During the movement, the surface to be detected can be cleaned by means of the contact between the connecting rope 3 and the cleaning member 5 and the surface to be detected.

[0045] The cleaning member 5 can be in various forms. The illustration is for display only and does not represent the actual size. The cleaning member 5 can be a brush structure, or a cleaning cloth or a grinding stone.

[0046] Furthermore, it also includes: a sliding sleeve 6 having an inner sleeve cavity 601 , the rebound tester is sleeved and arranged in the inner sleeve cavity 601 , and the sliding sleeve 6 is slidably connected to the positioning plate 201 .

[0047] When in use, the setting of the sliding sleeve 6 can improve the stability of the sliding guide, reduce the requirements on the surface of the rebound tester 1 and the wear during the sliding process. The rebound tester 1 is slidably set on the positioning plate 201 through the sliding sleeve 6.

[0048] Furthermore, a side surface of the sliding sleeve 6 has an observation window 602 .

[0049] When in use, the rebound tester 1 has a reading area 102 . The sliding sleeve 6 is arranged to be relatively long so as to be more stably connected to the rebound tester 1 . The observation window 602 is arranged to facilitate leakage of the reading area 102 .

[0050] Furthermore, the sliding sleeve 6 also has a plurality of sliding rods 603 , and the plurality of sliding rods 603 are distributed circumferentially on the outside of the sliding sleeve 6 ; a guide tube 2011 is provided in the middle of the positioning plate 201 , and the sliding sleeve 6 is slidably connected to the guide tube 2011 .

[0051] When in use, the sliding sleeve 6 has a plurality of sliding rods 603 , which can improve the sliding stability and prevent the sliding sleeve 6 from rotating.

[0052] Furthermore, the slide rod 603 has a first positioning hole 6031 and a second positioning hole 6032, and the first positioning hole 6031 is located at the lower side of the second positioning hole 6032; it also includes: an elastic clamping column 7, having a movable end 701, and the movable end 701 is slidably set on the guide tube 2011, and the movable end 701 abuts against one side of the slide rod 603. After the movable end 701 slides, it approaches or moves away from the first positioning hole 6031 and the second positioning hole 6032.

[0053] When in use, two positioning holes are provided on the slide bar 603. The first positioning hole 6031 is located at the lower side to indicate the highest position of the rebound tester 1 when it is lifted up, and the second positioning hole 6032 is located at the upper side to indicate the lowest position of the rebound tester 1 when it is pressed down, so as to prevent the slide sleeve 6 from slipping out of the guide tube 2011. The mobile end 701 of the elastic clamping column 7 can be pressed on one side of the slide bar 603 under the action of elastic force. When the slide sleeve 6 moves down or up, the mobile end 701 bounces into the first positioning hole 6031 or the second positioning hole 6032, with a certain resistance, and makes a limit prompt. The end of the mobile end 701 is a round head. After the jam, the slide sleeve 6 is forced to slide, and the mobile end 701 can be separated from the first positioning hole 6031 or the second positioning hole 6032.

[0054] Furthermore, one side of the guide tube 2011 has a side opening 2012 , and the side opening 2012 and the observation window 602 are located on the same side.

[0055] When in use, the side opening 2012 on the guide tube 2011 is opposite to the reading area 102, which is convenient for reading. The guide tube 2011 is "C"-shaped, and with the help of the slide rod 603, the slide sleeve 6 can be well guided.

[0056] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A concrete rebound tester, comprising a rebound tester (1), wherein the rebound tester (1) has a detection end (101), characterized in that: Also includes: A positioning frame (2) having a positioning plate (201) and four legs (202), wherein the four legs (202) are evenly distributed on the lower side of the positioning plate (201), and the four legs (202) are opposite to each other in pairs, and the legs (202) have a bottom contact portion (2021), and the bottom contact portion (2021) is used to abut against a surface to be tested, and the rebound tester (1) is slidably arranged on the positioning plate (201); The connecting rope (3) comprises a plurality of connecting ropes (3), two of which are arranged between two opposite contact bottoms (2021), the two connecting ropes (3) being arranged at intervals, one end of the connecting rope (3) being connected to one of the contact bottoms (2021), and the other end being connected to the other of the contact bottoms (2021), the connecting rope (3) being located at the lower side of the contact bottoms (2021), and the detection end (101) being located between the two connecting ropes (3).

2. A concrete rebound test hammer according to claim 1, characterized in that: The contact bottom portion (2021) has a plug-in slot (2022); the contact bottom portion (2021) further comprises: The foot pad (2023) is inserted in the insertion slot (2022), and the lower end of the foot pad (2023) and the connecting rope (3) are both used to abut against the surface to be detected.

3. A concrete rebound test hammer according to claim 2, characterized in that: One end of the connecting rope (3) is connected to the upper end of the contact bottom portion (2021), and the connecting rope (3) is passed around the side of the contact bottom portion (2021) to the lower side of the contact bottom portion (2021); the upper end of the contact bottom portion (2021) also has an adjustment groove (2024), and the connecting rope (3) passes over the adjustment groove (2024); and further comprises: A tensioning plate (4) is inserted into the adjustment slot (2024), and one end of the tensioning plate (4) abuts against the lower side of the connecting rope (3) for tensioning the connecting rope (3).

4. A concrete rebound test hammer according to claim 1, characterized in that: Also includes: A cleaning member (5) is arranged on the connecting rope (3), and the cleaning member (5) is located beside the detection end (101).

5. The concrete rebound test hammer according to claim 1, characterized in that: Also includes: The sliding sleeve (6) has an inner sleeve cavity (601), the rebound tester (1) is sleeved and arranged in the inner sleeve cavity (601), and the sliding sleeve (6) is slidably connected to the positioning plate (201).

6. A concrete rebound test hammer according to claim 5, characterized in that: The side surface of the sliding sleeve (6) is provided with an observation window (602).

7. A concrete rebound test hammer according to claim 6, characterized in that: The sliding sleeve (6) also has a sliding rod (603), and there are a plurality of the sliding rods (603), and the plurality of the sliding rods (603) are distributed circumferentially on the outside of the sliding sleeve (6); a guide tube (2011) is provided in the middle of the positioning plate (201), and the sliding sleeve (6) is slidably connected to the guide tube (2011).

8. A concrete rebound test hammer according to claim 7, characterized in that: The sliding rod (603) has a first positioning hole (6031) and a second positioning hole (6032), wherein the first positioning hole (6031) is located below the second positioning hole (6032); and further comprises: The elastic clamping column (7) has a movable end (701), and the movable end (701) is slidably arranged on the guide tube (2011). The movable end (701) abuts against one side of the sliding rod (603). After sliding, the movable end (701) approaches or moves away from the first positioning hole (6031) and the second positioning hole (6032).

9. The concrete rebound test hammer according to claim 8, characterized in that: The guide tube (2011) has a side opening (2012) on one side, and the side opening (2012) and the observation window (602) are located on the same side.

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