Concrete strength detection equipment for civil construction engineering quality detection

Abstract

The utility model discloses concrete strength detection equipment for civil and constructional engineering quality detection, and relates to the technical field of concrete quality detection.The concrete strength detection equipment comprises a rebound apparatus body, the rebound apparatus body is coaxially provided with an elastic striking rod, and a fixing plate is coaxially and fixedly arranged on the outer wall of the rebound apparatus body; a plurality of first guide rods are evenly distributed on the fixing plate around the axis of the elastic striking rod, the first guide rods are parallel to the elastic striking rod, the outer side ends of the first guide rods are jointly and fixedly connected with a fixing frame, and the outer surface of the fixing frame is perpendicular to the axis of the elastic striking rod. The outer side end of the fixing frame is connected with a detection piece used for detecting whether the elastic rod is perpendicular to the surface of the concrete member or not. According to the concrete strength detection equipment for civil construction engineering quality detection, the detection precision of a rebound instrument can be improved, and the problems that in the using process, an elastic rod is difficult to keep perpendicular to the surface of a concrete member, and shaking is likely to happen in the detection process are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of concrete quality detection, and particularly relates to a concrete strength detection equipment for civil engineering quality detection. BACKGROUND

[0002] The rebound method is usually used for concrete strength detection, which is one of the most widely used methods for concrete strength detection. The principle is that the rebound hammer of the rebound instrument hits the surface of the concrete, and the surface hardness of the concrete is calculated according to the rebound distance of the rebound hammer, and then the strength of the concrete is inferred. The rebound method has the advantages of simple operation, quickness and low cost. In actual use, the rebound instrument body and the rebound rod need to be perpendicular to the surface of the detected concrete member, so as to ensure the detection accuracy. However, the worker holding the rebound instrument can only rely on intuition and experience to assess whether the rebound rod is perpendicular to the surface of the member, and the rebound instrument is easy to shake during the process of pressing down the rebound rod, thereby affecting the accuracy of the final detection result. In addition, after the rebound rod is pressed down to the position, the manual control cannot timely recover the force, which causes the end of the rebound instrument shell to collide with the surface of the member, and even causes damage.

[0003] The existing patent document CN222299418U discloses a concrete detection device for building construction, which comprises a rebound instrument body, a rebound rod arranged in the rebound instrument body, a fixed cylinder arranged on the outer surface of the rebound instrument and sliding synchronously with the rebound rod, a compression assembly connecting the fixed cylinder and the rebound rod, a plurality of support blocks fixed on one end of the fixed cylinder close to the rebound rod, and the end of each support block is flush with the end of the rebound rod. According to the document, the support blocks are in contact with the surface of the member, thereby ensuring that the rebound rod is perpendicular to the surface of the member. However, when the surface of the member is uneven, the support blocks are in point contact with the surface of the member, so it is impossible to ensure that the rebound rod is perpendicular to the surface of the member. At the same time, the fixed cylinder arranged to slide with the rebound rod still needs to rely on the subjective experience of the worker to determine whether the rebound instrument body shakes, so it is difficult to control the shaking of the rebound instrument body during the detection process. Practical new type content

[0004] The present application provides a concrete strength detection equipment for civil engineering quality detection, which aims to improve the detection accuracy of the rebound instrument, solve the problems that the rebound rod is difficult to maintain perpendicular to the surface of the concrete member during use and is easy to shake during the detection process, and solve the problem that the rebound rod is pressed down to the position, the manual control cannot timely recover the force after reaching the position, which causes the end of the rebound instrument shell to collide with the surface of the member, and even causes damage.

[0005] To achieve the above-mentioned purpose, the technical scheme of the present application is as follows:

[0006] The utility model provides a kind of civil engineering quality detection with concrete strength detection equipment for detection, including rebound hammer body, the rebound hammer body is coaxially provided with baffle rod, the outer wall of the rebound hammer body is coaxially fixed with fixed plate, and multiple first guide rods are evenly distributed on the fixed plate around the axis of baffle rod, the first guide rod is parallel with baffle rod, and the outside end of multiple first guide rods is fixedly connected with fixed frame, the outer surface of the fixed frame is perpendicular to the axis of baffle rod, and the outside end of fixed frame is connected with detection piece for detecting whether baffle rod is perpendicular to the surface of concrete component, and the fixed plate is provided with range finding mechanism for detecting the position of baffle rod.

[0007] Preferably, the fixed frame is a rectangular frame structure coaxial with the baffle rod, the four corners of the inner surface of the rectangular frame structure are fixedly connected with one end of the first guide rod respectively, the other end of the four first guide rods penetrates the fixed plate respectively, the four corners of the fixed plate are embedded with first guide sleeves, the first guide rod is slidingly connected with the first guide sleeve, the inside end of the first guide rod is fixedly connected with a first anti-dropping block, and the first reset spring is sleeved on the outer wall of the first guide rod between the first anti-dropping block and the fixed plate.

[0008] Preferably, the detection piece includes a detection plate provided on the outer surface of the four sides of the rectangular frame structure, two ends of the inner surface of the detection plate are respectively provided with second guide rods, the second guide rods penetrate the second guide sleeves pre-provided on the rectangular frame structure and are slidingly connected with the second guide sleeves, the inside end of the second guide rod is fixedly connected with a second anti-dropping block, the second guide rod is sleeved with a second reset spring between the second anti-dropping block and the inner surface of the rectangular frame structure, the outer surface of the rectangular frame structure between the two second guide rods is fixedly provided with pressure sensors, the outside end of the four pressure sensors is coplanar and parallel to the outer surface of the fixed frame and the detection plate, and the inner surface of the detection plate is clearance-fitted with the outside end of the pressure sensor.

[0009] Preferably, the side end surface of the fixed plate is respectively embedded with a controller, a battery and a display which are electrically connected with each other, and the pressure sensors are respectively electrically connected with the controller through wires.

[0010] Preferably, the range finding mechanism provided on the outer surface of the fixed plate is a laser ranging sensor, the laser ranging sensor is used in cooperation with the fixed frame, and the laser ranging sensor is electrically connected with the controller through wires.

[0011] Preferably, the fixed plate is a rectangular plate structure, a through hole is formed in the middle part of the fixed plate, a coaxial fixed cylinder is fixedly provided in the through hole, and the fixed cylinder is fixedly connected with the outer wall of the rebound hammer body.

[0012] Preferably, the side end surface of the fixed plate is further provided with a loudspeaker, and the loudspeaker is electrically connected with the controller.

[0013] Preferably, the rebound body is further provided with a handle on the outer wall.

[0014] Preferably, the handle is provided with a control button.

[0015] Preferably, in the initial state, the distance from the outer surface of the detection plate to the outer surface of the fixed plate is greater than the distance from the outer end surface of the impact rod to the outer surface of the fixed plate.

[0016] The concrete strength detection equipment for civil engineering quality detection has the beneficial effects that:

[0017] The rebound device of the present application overcomes the influence of the small concave-convex structure on the surface of the component, ensures that the impact rod is perpendicular to the surface of the component and the position relationship between the impact rod and the surface of the component can be monitored, the monitoring range includes whether the impact rod is in contact with the surface of the component and whether it is retracted into the rebound body, and the impact rod can also be monitored for whether it has a small inclination and the inclination direction or inclination range exceeds the set limit, based on the above settings, the subjective experience of manual operation and the hard impact between the rebound shell and the surface of the component are overcome, the vertical posture of the impact rod and the surface of the component during the detection process is ensured, and the problem of excessive shaking amplitude of the impact rod is overcome, and the accuracy of the concrete component strength detection is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The side view structural schematic diagram of the present application;

[0019] Figure 2 The front view structural schematic diagram of the present application;

[0020] Figure 3 The front view structural schematic diagram of the fixed plate of the present application;

[0021] Figure 4 The partial structural schematic diagram of the present application at A;

[0022] 1, rebound body; 2, handle; 3, reading window; 4, impact rod; 5, fixed plate; 6, fixed cylinder; 7, first guide sleeve; 8, first guide rod; 9, fixed frame; 10, detection plate; 11, display; 12, controller; 13, battery; 14, control button; 15, pressure sensor; 16, second guide rod; 17, laser ranging sensor; 18, first anti-drop block; 19, first return spring; 20, second anti-drop block; 21, second return spring. DETAILED DESCRIPTION

[0023] The following describes the embodiments of the present application in a step-by-step manner. The description is only for the preferred embodiments of the present application and is not intended to limit the scope of protection of the present application. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, a particular orientation configuration, and a particular operation, and therefore cannot be understood as a limitation on the present application.

[0025] The following embodiments can be understood as part of the technical structure and principle of the present application, and can also be understood as a combination of multiple embodiments to explain the larger range of structure and principle of the present application.

[0026] In the initial embodiment, the present application is a concrete strength detection equipment for civil engineering quality detection, as shown in Figures 1-4 The rebound hammer body 1 is coaxially provided with a rebounding rod 4. A fixed plate 5 is fixed coaxially on the outer wall of the rebound hammer body 1. A plurality of first guide rods 8 are uniformly distributed around the axis of the rebounding rod 4 on the fixed plate 5. The first guide rods 8 are parallel to the rebounding rod 4. The outer side ends of the plurality of first guide rods 8 are fixedly connected with a fixed frame 9. The outer surface of the fixed frame 9 is perpendicular to the axis of the rebounding rod 4. The outer side end of the fixed frame 9 is connected with a detection member for detecting whether the rebounding rod 4 is perpendicular to the surface of the concrete member. A distance measuring mechanism for detecting the position of the rebounding rod 4 is provided on the fixed plate 5.

[0027] In a further embodiment, as shown in Figures 1-4 The fixed frame 9 is a rectangular frame structure coaxial with the rebounding rod 4. The four corners of the inner surface of the rectangular frame structure are fixedly connected with one end of the first guide rod 8, respectively. The other end of the four first guide rods 8 penetrates the fixed plate 5, respectively. The four corners of the fixed plate 5 are embedded with first guide sleeves 7. The first guide rods 8 are slidingly connected with the first guide sleeves 7. The inner side end of the first guide rod 8 is fixedly connected with a first anti-dropping block 18. The first guide rod 8 between the first anti-dropping block 18 and the fixed plate 5 is sleeved with a first return spring 19.

[0028] In a further embodiment, as shown in Figures 1-4As shown, the detection piece includes detection plates 10 arranged on the outer surfaces of the four sides of the rectangular frame structure, the inner surfaces of the detection plates 10 are respectively provided with second guide rods 16, the second guide rods 16 penetrate through second guide sleeves (not shown in the figure) arranged on the rectangular frame structure and are in sliding connection with the second guide sleeves, the inner ends of the second guide rods 16 are fixedly connected with second anti-dropping blocks 20, the outer sleeves of the second guide rods 16 between the second anti-dropping blocks 20 and the inner surfaces of the rectangular frame structure are provided with second return springs 21, the outer surfaces of the rectangular frame structure between the two second guide rods 16 are fixedly provided with pressure sensors 15, the outer ends of the four pressure sensors 15 are coplanar and parallel to the outer surfaces of the fixed frame 9 and the detection plates 10, and the inner surfaces of the detection plates 10 are in clearance fit with the outer ends of the pressure sensors 15. Since the detection plates are in surface contact with the surface of the component, the influence of the slight unevenness of the surface of the component can be avoided, and some documents directly contact the surface of the component through the micro pressure sensor, which is easy to be misled by the axis position of the recoil lever due to the uneven surface. When the four detection plates are attached to the surface of the component and the detection plates are in contact with the pressure sensors, the relative perpendicularity of the recoil lever and the surface of the component can be ensured due to the effect of the second guide rod.

[0029] In further embodiments, as shown in Figures 1-4 the side end surfaces of the fixed plate 5 are respectively embedded with a controller 12, a battery 13 and a display 11 which are electrically connected with each other, and the pressure sensors 15 are electrically connected with the controller 12 through wires.

[0030] In further embodiments, as shown in Figures 1-4 the distance measuring mechanism arranged on the outer surface of the fixed plate 5 is a laser distance measuring sensor 17, the laser distance measuring sensor 17 is used in cooperation with the fixed frame 9, and the laser distance measuring sensor 17 is electrically connected with the controller 12 through wires.

[0031] In further embodiments, as shown in Figures 1-4 the fixed plate 5 is a rectangular plate structure, a through hole is arranged in the middle of the fixed plate 5, a fixed cylinder 6 coaxial with the through hole is fixedly arranged in the through hole, and the fixed cylinder 6 is fixedly connected with the outer wall of the rebound instrument body 1.

[0032] In further embodiments, as shown in Figures 1-4 the side end surfaces of the fixed plate 5 are further provided with a loudspeaker (not shown in the figure), and the loudspeaker is electrically connected with the controller 12.

[0033] In further embodiments, as shown in Figures 1-4 the outer wall of the rebound instrument body 1 is further provided with a handle 2.

[0034] In further embodiments, as shown in Figures 1-4 the handle 2 is provided with a control button 14.

[0035] In further embodiments, as shown in Figures 1-4 the initial state, the distance one from the outer surface of the detection plate 10 to the outer surface of the fixed plate 5 is greater than the distance two from the outer end surface of the impact rod 4 to the outer surface of the fixed plate 5.

[0036] The use principle of the present application is as follows:

[0037] The user holds the handle 2 with one hand and holds the rebound instrument body 1 with the other hand, opens the control button 14, moves the detection plate 10 to the side of the concrete member surface, so that the four detection plates 10 are in contact with the member surface and trigger the four pressure sensors, when the display 11 displays the values of the four pressure sensors and the difference between each value is within the set range, the display prompts the user to be normal, at this time, it means that the axis of the impact rod is perpendicular to the member surface, continue to push the rebound instrument body, during the pushing process, always observe the pressure values of the display, the controller judges that the impact rod is always perpendicular to the member surface (allowing a small error) and prompts the user to be normal, until the impact rod is retracted into the rebound instrument body, the user reads the measurement value (if the pressure value of one side is low, the user can slightly adjust the rebound instrument body to tilt to that side, so that the pressure value returns to the level close to the other pressure values). During this process, if the comparison of the pressure values is abnormal, that is, the difference exceeds the set range, it means that the impact rod is tilted at a certain angle, the controller prompts through the loudspeaker, and the user corrects or re-starts the detection in time. Among them, the laser ranging sensor is used to detect the distance of the fixed frame, so as to indirectly judge whether the impact rod is in contact with the member surface or whether the impact rod is retracted into the rebound instrument body (this judgment is based on the fact that the member surface is a plane, so after the fixed frame moves a certain distance, the impact rod starts to contact the member surface, and the certain distance is used to judge whether the impact rod contacts the member surface. The basis for retracting the impact rod into the rebound instrument body is that the length of the exposed part of the impact rod in the initial state is known, so the length of the exposed part of the impact rod is subtracted from the above certain distance, which allows a small error and does not affect the accuracy of the rebound instrument detection, only to prompt the user to pay attention to the display screen and stop continuing to apply greater force after the impact rod is retracted into position), when the impact rod contacts the member surface, the loudspeaker emits a prompt sound, the user checks whether the impact rod is perpendicular to the member surface through the display, and controls the whole process of compressing the impact rod, when the impact rod enters the rebound instrument, the loudspeaker emits a prompt sound, the user keeps the position of the rebound instrument at this time, without continuing to apply the pushing force, and reads the measurement value.

[0038] Need to explain, because the controller pre-stored data and the recoil rod will be in contact with the surface of the components, and the recoil rod retracted to the data, so the user can observe the distance data display through the display, timely control the degree of force, avoid the hard collision damage to the shell of the rebound instrument.

Claims

1. A concrete strength detection equipment for civil engineering quality detection, comprising a rebound hammer body, a rebounding rod is coaxially arranged on the rebound hammer body, characterized in that, The outer wall of the rebound hammer body is coaxially provided with a fixed plate, a plurality of first guide rods are uniformly distributed on the fixed plate around the axis of the impact rod, the first guide rods are parallel to the impact rod, the outer ends of the plurality of first guide rods are fixedly connected with a fixed frame, the outer surface of the fixed frame is perpendicular to the axis of the impact rod, the outer end of the fixed frame is connected with a detection member for detecting whether the impact rod is perpendicular to the surface of the concrete member, and the fixed plate is provided with a distance measuring mechanism for detecting the position of the impact rod.

2. The concrete strength detection equipment for civil engineering quality detection according to claim 1, characterized in that: The fixed frame is a rectangular frame structure coaxial with the impact rod, the four corners of the inner surface of the rectangular frame structure are fixedly connected with one end of the first guide rod, the other end of the four first guide rods penetrates the fixed plate, the four corners of the fixed plate are embedded with first guide sleeves, the first guide rods are slidingly connected with the first guide sleeves, the inner end of the first guide rod is fixedly connected with a first anti-dropping block, and the first reset spring is sleeved on the outer wall of the first guide rod between the first anti-dropping block and the fixed plate.

3. A concrete strength detection equipment for civil engineering quality detection according to claim 2, characterized in that: The detection member includes a detection plate provided on the outer surface of the four sides of the rectangular frame structure, two ends of the inner surface of the detection plate are respectively provided with second guide rods, the second guide rods penetrate the second guide sleeves pre-provided on the rectangular frame structure and are slidingly connected with the second guide sleeves, the inner end of the second guide rod is fixedly connected with a second anti-dropping block, the second reset spring is sleeved on the outer wall of the second guide rod between the second anti-dropping block and the inner surface of the rectangular frame structure, the outer surface of the rectangular frame structure between the two second guide rods is fixedly provided with a pressure sensor, the outer ends of the four pressure sensors are coplanar and parallel to the outer surface of the fixed frame and the detection plate, and the inner surface of the detection plate is clearance-fitted with the outer end of the pressure sensor.

4. The concrete strength detection equipment for civil engineering quality detection according to claim 3, characterized in that: The side end surface of the fixed plate is respectively embedded with a controller, a battery and a display which are electrically connected with each other, and the pressure sensor is electrically connected with the controller through wires.

5. A concrete strength testing apparatus for geotechnical and construction quality testing as claimed in claim 4, characterized in that: The distance measuring mechanism provided on the outer surface of the fixed plate is a laser distance measuring sensor, the laser distance measuring sensor is used in cooperation with the fixed frame, and the laser distance measuring sensor is electrically connected with the controller through wires.

6. A concrete strength testing apparatus for geotechnical and construction quality testing as claimed in claim 5, characterized in that: The fixed plate is a rectangular plate structure, a through hole is formed in the middle of the fixed plate, and a coaxial fixed cylinder is fixedly arranged in the through hole and fixedly connected with the outer wall of the rebound hammer body.

7. A concrete strength testing apparatus for geotechnical and construction quality testing as claimed in claim 6, characterized in that: The side end surface of the fixed plate is further provided with a loudspeaker, and the loudspeaker is electrically connected with the controller.

8. A concrete strength testing apparatus for geotechnical and construction quality testing as claimed in claim 7, characterized in that: The outer wall of the rebound hammer body is further provided with a handle.

9. A concrete strength testing apparatus for geotechnical and construction quality testing as claimed in claim 8, characterized in that: The handle is provided with a control button.

10. A concrete strength testing apparatus for geotechnical and construction quality testing as claimed in claim 9, characterized in that: In the initial state, the distance one from the outer surface of the detection plate to the outer surface of the fixed plate is greater than the distance two from the outer end surface of the impact rod to the outer surface of the fixed plate.

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