A portable concrete structure detection device

Abstract

The utility model discloses a portable concrete structure detection device, including walking assembly, including chassis, and the walking wheel of a plurality of rollable is arranged on the chassis, position adjusting assembly, including the first connecting arm of rotation connection in the top of chassis, and the last end of first connecting arm is hinged with second connecting arm, and the last end of second connecting arm is connected with the connecting plate, detection component, including setting the connecting support of connecting plate outside and the optical axis of connecting on connecting plate, and the radar is connected on the connecting support, and the left and right sides of connecting support are connected with a plurality of and the linear sliding sleeve of optical axis one to one correspondence respectively, and the linear sliding sleeve is slidably connected on the corresponding optical axis, and the optical axis is equipped with the elastic part, and the both ends of elastic part are connected with the connecting plate respectively, and the one end of linear sliding sleeve opposite connecting plate is connected, and the elastic part is always in compression state, the utility model discloses the joint setting of detection component and position adjusting assembly makes radar can be pasted on the wall surface of measuring and slide, and the detection is convenient.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a portable concrete structure testing device. Background Technology

[0002] Concrete, as the most widely used and important building material in the world today, is extensively used in various civil engineering fields such as housing construction, bridges, tunnels, dams, highways, and railways. Its quality directly affects the overall safety, durability, and service life of the engineering structure. Defects within the concrete structure, such as voids, cracks, or lack of compaction, or internal reinforcement that does not meet design requirements, will significantly weaken the structure's load-bearing capacity, leaving serious safety hazards and potentially even leading to catastrophic accidents. Therefore, accurate and reliable quality testing of concrete structures is a crucial link in ensuring project quality and protecting people's lives and property.

[0003] In non-destructive testing of concrete structures, ground-penetrating radar (GPR) technology has become one of the mainstream testing methods due to its advantages such as high efficiency, intuitiveness, and high resolution. However, the existing GPR technologies typically require inspectors to hold the radar main unit and its associated transmitting and receiving antennas directly, keeping the antenna array close to the concrete surface and moving it in a uniform linear motion. This results in high labor intensity and low testing efficiency. Testing is particularly difficult in hard-to-reach areas such as ceilings and tall walls, and prolonged operation leads to worker fatigue, reducing testing efficiency and making it difficult to ensure consistency when testing large areas. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the above and / or existing concrete structure testing, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a portable concrete structure testing device. The radar in this utility model can be attached to the wall to be tested for testing. The testing personnel only need to push the walking component to move forward along the test trajectory of the wall, which reduces labor intensity, improves testing efficiency and consistency when testing large areas, and solves the technical problems of high labor intensity and low efficiency when manually holding radar for testing.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a portable concrete structure testing device, comprising,

[0008] The walking assembly includes a chassis with at least three rolling wheels arranged on the chassis;

[0009] The position adjustment assembly includes a first connecting arm that is rotatably connected to the chassis and can swing up and down, a second connecting arm that is hinged to the end of the first connecting arm away from the chassis, and a connecting plate that is connected to the end of the second connecting arm away from the first connecting arm.

[0010] The detection component includes a connecting bracket disposed on the end of the connecting plate away from the second connecting arm and an optical axis fixedly connected to the connecting plate. A radar is fixedly connected to the connecting bracket. Several linear sliding sleeves corresponding one-to-one with the optical axis are fixedly connected to the left and right sides of the connecting bracket. The linear sliding sleeves are slidably connected to the corresponding optical axis. An elastic element is fitted on the optical axis. The two ends of the elastic element are respectively connected to the connecting plate and the end of the linear sliding sleeve opposite to the connecting plate. The elastic element is always in a compressed state.

[0011] As a preferred embodiment of the portable concrete structure testing device of this utility model, the front and rear sides of the connecting bracket are respectively detachably connected to roller brackets, the roller brackets are connected to roller shafts, and the roller shafts are connected to at least two guide wheels spaced apart in the left and right directions, and the bottom edge of the outer circumference of the rotating guide wheels is lower than the bottom of the connecting bracket.

[0012] As a preferred embodiment of the portable concrete structure testing device of this utility model, the bottom of the connecting plate is fixedly connected to a vertical rod, the vertical rod is set on the connecting bracket in the left-right direction with one side facing outward, and a first sensor and a second sensor are connected on the vertical rod in the front-back direction near either linear sliding sleeve, the second sensor is set near the bottom of the connecting plate, and the first sensor is below the second sensor.

[0013] As a preferred embodiment of the portable concrete structure testing device of this utility model, the first sensor and the second sensor are both preferably travel-limiting metal induction sensors.

[0014] As a preferred embodiment of the portable concrete structure testing device of this utility model, the optical axis is internally threaded with a limiting screw, and a limiting washer is fixed at the bottom of the limiting screw to limit the downward movement of the linear sliding sleeve. The upper side of the limiting washer abuts against the bottom of the optical axis.

[0015] As a preferred embodiment of the portable concrete structure testing device of this utility model, the position adjustment component further includes an angle adjustment motor fixedly connected to the chassis. An adapter sleeve is connected to the output shaft of the angle adjustment motor. A column is fixedly connected to the upper end of the adapter sleeve. A first linear actuator is hinged to the column. A first push-pull rod extending outward and capable of reciprocating linear motion is connected to the first linear actuator. The upper end of the first push-pull rod is hinged below the first connecting arm. A second linear actuator is hinged below the upper part of the first connecting arm. A second push-pull rod extending outward and capable of reciprocating linear motion is hinged to the second linear actuator. The end of the second push-pull rod away from the second linear actuator is hinged below the second connecting arm.

[0016] As a preferred embodiment of the portable concrete structure testing device of this utility model, the first connecting arm has an installation groove at the end away from the second connecting arm, the first connecting arm is fixedly connected to a drive motor through the installation groove, the end of the second connecting arm is fixedly connected to a reducer, the drive motor provides a power source for the reducer, the output end of the reducer is connected to a drive shaft, the connecting plate is fixedly connected to a fixed bracket spaced apart in the front-back direction on the side opposite to the second connecting arm, and the two ends of the drive shaft are respectively connected to the two fixed brackets.

[0017] As a preferred embodiment of the portable concrete structure testing device of this utility model, a handle for easy pushing and pulling is fixedly connected to the upper side of one end of the chassis in the front-rear direction.

[0018] Compared with the prior art, this utility model has the following technical effects: by combining the detection component and the position adjustment component, the position adjustment of the radar is realized, so that the radar can slide against the wall surface to be tested, making the detection convenient; guide wheels are set at both the front and rear of the radar so that it can roll along the wall surface to be tested. When there are seams or small steps on the wall surface to be tested, the radar support can be guided to cross the steps to avoid jamming, or manual readjustment can be performed to improve detection efficiency and facilitate detection; it can be applied to the detection of concrete structures. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a three-dimensional structural diagram of the wall surface to be tested using this utility model.

[0021] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0022] Figure 3 for Figure 1 A magnified view of a section at point B in the middle.

[0023] Figure 4 The three-dimensional structural diagram of this utility model.

[0024] Figure 5 for Figure 4 A magnified view of a section at point C.

[0025] In the diagram, 100 is the walking assembly, 101 is the swivel caster, 102 is the directional caster, 103 is the controller, 104 is the chassis, 104-1 is the handle, 200 is the detection assembly, 201 is the roller shaft, 202 is the guide wheel, 203 is the roller bracket, 204 is the limit washer, 205 is the optical axis, 206 is the linear sliding sleeve, 207 is the elastic element, 208 is the second sensor, 209 is the first sensor, 210 is the upright, 211 is the connecting bracket, and 300 is the position adjustment assembly. 301 Second connecting arm, 302 Second push-pull rod, 303 Second linear driver, 304 First connecting arm, 305 Adapter sleeve, 306 Angle adjustment motor, 307 First linear driver, 308 First push-pull rod, 309 Column, 310 Fixed bracket, 310-1 Vertical part, 310-2 Horizontal part, 311 Connecting plate, 311-1 Second lower connecting hole, 312 Reducer, 313 Drive shaft, 314 Drive motor. Detailed Implementation

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0029] Example 1: Refer to Figures 1-5This embodiment provides a portable concrete structure detection device. By setting up the position adjustment component 300 and the detection component 200, and manually adjusting the position of the chassis 104, the radar can slide against the wall surface to be tested for detection, thereby improving detection efficiency and reducing labor intensity.

[0030] A portable concrete structure testing device includes a walking component 100, which includes a chassis 104. At least three rolling wheels are arranged on the chassis 104; in this embodiment, four wheels are preferred. The front two wheels are omnidirectional casters 101 capable of changing direction, and the rear two wheels are directional casters 102. The connection method between the omnidirectional casters 101 and the directional casters 102 and the chassis 104 is prior art and not an improvement of this application; therefore, the specific connection structure will not be described in detail. A handle 104-1 for easy pushing and pulling is fixedly connected to the upper side of one end of the chassis 104 in the front-rear direction. A position adjustment component 30 is connected to the chassis 104. 0. The position adjustment assembly 300 includes a first connecting arm 304 rotatably connected above the chassis 104 and capable of swinging up and down. A second connecting arm 301 is hinged to the end of the first connecting arm 304 away from the chassis 104. A connecting plate 311 is connected to the end of the second connecting arm 301 away from the first connecting arm 304. A detection assembly 200 is externally connected to the connecting plate 311. Roller brackets 203 are detachably connected to the front and rear sides of the connecting bracket 211. A roller shaft 201 is connected to the roller bracket 203. At least two guide wheels 202 are connected to the roller shaft 201 and spaced apart in the left and right direction. The bottom edge of the outer circumference of the guide wheel 202 is lower than the bottom of the connecting bracket 211.

[0031] Specifically, the detection component 200 includes a connecting bracket 211 disposed outside the end of the connecting plate 311 away from the second connecting arm 301, and an optical axis 205 fixedly connected to the connecting plate 311. A radar is fixedly connected to the connecting bracket 211. Several linear sliding sleeves 206 corresponding one-to-one with the optical axis 205 are fixedly connected to the left and right sides of the connecting bracket 211, respectively. The linear sliding sleeves 206 are slidably connected to the corresponding optical axis 205. An elastic element 207 is fitted on the optical axis 205. The two ends of the elastic element 207 are respectively connected to the connecting plate 311 and the linear sliding sleeves 206 relative to the connecting plate 311. One end is connected, and the elastic element 207 is always in a compressed state; the bottom of the connecting plate 311 is fixedly connected to the upright 210, which is set on the connecting bracket 211 in the left-right direction with one side facing outward. The upright 210 is connected to a first sensor 209 and a second sensor 208 that are close to any linear sliding sleeve 206 in the front-back direction. The second sensor 208 is set close to the bottom of the connecting plate 311, and the first sensor 209 is below the second sensor 208. Both the first sensor 209 and the second sensor 208 are preferably travel limit metal induction sensors.

[0032] The elastic element 207 is preferably a compression spring, and the bottom of the radar is wrapped with protective rubber. Before detection, the connection between the connecting plate 311 and the first connecting arm 304 is adjusted so that the guide wheel 202 can roll along the direction to be measured on the wall. The forward direction of the walking component 100 is adjusted so that its forward direction is parallel to the direction to be measured on the wall. The angle of the connecting plate 311 is adjusted so that it is parallel to the wall. At the same time, the distance between the connecting plate 311 and the wall is adjusted so that the protective rubber can adhere to the wall. The reaction force of the wall causes the connecting bracket 211 to retract along the optical axis 205 towards the direction of the connecting plate 311 until the first sensor 209 can no longer detect the linear bearing. The operator pushes the handle 104-1 so that the device moves forward parallel to the wall. During the forward movement, if the distance between the detection device and the wall increases, it will cause the distance between the connecting bracket 211 and the wall to increase. Under the action of the elastic element 207, the connecting bracket 211 is pushed outward; when the first sensor 209 detects the linear sliding sleeve 206, the distance of the connecting plate 311 extending out of the chassis 104 is adjusted, causing the connecting plate 311 to extend outward; if the distance between the chassis 104 and the measured wall decreases during forward movement, it will cause the distance between the connecting plate 311 and the measured wall to decrease, and the reaction force of the wall will further compress the elastic element 207 until the linear guide sleeve is detected by the second sensor 208, at which point the distance of the connecting plate 311 extending out of the chassis 104 is adjusted, causing the connecting plate 311 to retract in the direction of the chassis 104; when the position adjustment range of the connecting plate 311 is exceeded, the reminder module in the controller 103 set on the chassis 104 issues a reminder signal to remind the operator to adjust the position and forward direction of the chassis 104 to ensure that the radar can always be in contact with the measured wall and to ensure the detection quality.

[0033] The position adjustment assembly 300 also includes an angle adjustment motor 306 fixedly connected to the chassis 104. An adapter sleeve 305 is connected to the output shaft of the angle adjustment motor 306. A column 309 is fixedly connected to the upper end of the adapter sleeve 305. A first linear actuator 307 is hinged to the column 309. A first push-pull rod 308 extending outwards and capable of reciprocating linear motion is connected to the first linear actuator 307. The upper end of the first push-pull rod 308 is hinged below the first connecting arm 304. A second linear actuator 303 is hinged to the lower part of the upper portion of the first connecting arm 304. A second push-pull rod 302 extending outwards and capable of reciprocating linear motion is hinged to the second linear actuator 303. The end of the second push-pull rod 302 away from the second linear actuator 303 is hinged to the second connecting arm. Below 301; the first connecting arm 304 has a mounting groove at one end away from the second connecting arm 301. The first connecting arm 304 is fixedly connected to a drive motor 314 via the mounting groove. The end of the second connecting arm 301 is fixedly connected to a reducer 312 (the reducer 312 is preferably a worm gear reducer 312, which is prior art and not an improvement of this application. The axis of the output end of the reducer 312 is perpendicular to the axis of the output end of the drive motor 314). The drive motor 314 provides a power source for the reducer 312. The output end of the reducer 312 is connected to a drive shaft 313. The connecting plate 311 is fixedly connected to a fixed bracket 310 spaced apart in the front-rear direction on one side opposite to the second connecting arm 301. The two ends of the drive shaft 313 are respectively connected to the two fixed brackets 310.

[0034] The fixed bracket 310 includes a horizontal part 310-2 and a vertical part 310-1 integrally formed. A drive shaft 313 is connected to the vertical part 310-1. The horizontal part 310-2 and the vertical part 310-1 are perpendicular to each other. The horizontal part 310-2 is fixedly connected to the side of the connecting plate 311 opposite to the second connecting arm 301. The horizontal part 310-2 has two upper connecting holes. The connecting plate 311 has two sets of first lower connecting hole units and two sets of second lower connecting holes 311-1. The two sets of first lower connecting hole units are centrally symmetrical about the connecting plate 311 in the length direction, and the two sets of second lower connecting hole 311-1 units are centrally symmetrical about the connecting plate 311 in the width direction. Each first lower connecting hole unit consists of two first lower connecting holes that correspond one-to-one with the upper connecting holes. Each second lower connecting hole 311-1 unit consists of two... The device consists of a second lower connecting hole 311-1 that corresponds one-to-one with the lower connecting hole. The first lower connecting hole is coaxial with the corresponding upper connecting hole, and the second lower connecting hole 311-1 is also coaxial with the corresponding upper connecting hole. When the wall being measured is an inclined wall or a vertical wall, the upper connecting hole and the first lower connecting hole are coaxial. Fixing bolts are screwed into the upper connecting hole and the first lower connecting hole to fix the connecting plate 311 to the horizontal part 310-2. When the wall being measured is the top surface, the fixing bolts are removed, and the connecting plate 311 is rotated 90 degrees to make the second lower connecting hole 311-1 coaxial with the corresponding upper connecting hole. The fixing bolts are then screwed in to fix the connecting plate 311 to the horizontal part 310-2, thereby realizing the overall adjustment of the installation angle of the detection component 200 and allowing the guide wheel 202 to roll along the measurement direction of the wall to be measured.

[0035] Before testing, adjust the connection between the connecting plate 311 and the horizontal plate so that the guide wheel 202 can roll along the direction to be measured on the wall. When adjusting the position of the connecting plate 311 relative to the wall, control the angle adjustment motor 306 to rotate the first connecting arm 304 towards the wall to be measured. When the rotation reaches the appropriate angle, the angle adjustment motor 306 stops, and control the first linear driver 307 and the second linear driver 303 to adjust the distance between the connecting plate 311 and the wall. When adjusting the angle of the connecting plate 311, control the drive motor 314 to ensure that the connecting plate 311 is parallel to the direction to be measured on the wall during testing. This is achieved through the setting of the position adjustment component 300. The radar's position and angle are adjusted. When the position adjustment range of the first connecting arm 304 and the second connecting arm 301 is exceeded, the reminder module in the controller 103 on the chassis 104 (the linear driver, the first sensor 209, and the second sensor 208 respectively feed back signals to the controller 103, and the controller 103 controls the reminder module to act according to the feedback signals; the reminder module is preferably an audible and visual alarm module; all of the above are existing technologies and are not improvements of this application; this application is only for more clearly describing the detection process) emits an audible and visual alarm signal to remind the operator to adjust the position and forward direction of the chassis 104 to ensure that the radar can always be in contact with the wall being measured and to ensure the detection quality.

[0036] Example 2: Refer to Figure 1 and Figure 3 This embodiment is based on embodiment 1, but differs from embodiment 1 in that it provides a portable concrete structure detection device that can further limit the downward movement of the radar and prevent the radar from detaching from the connecting plate 311.

[0037] Specifically, the optical axis 205 is internally threaded with a limiting screw, and the bottom of the limiting screw is fixed with a limiting washer 204 that limits the downward movement of the linear sliding sleeve 206. The upper side of the limiting washer 204 abuts against the bottom of the optical axis 205.

[0038] When the distance between the connecting plate 311 and the wall surface to be tested increases, the setting of the limiting pad 204 restricts the connecting bracket 211 from disengaging from the optical axis 205, thereby improving the reliability of the structure.

[0039] In this application, the forward and backward direction is parallel to the forward direction of the guide wheel 202, and the left and right direction is perpendicular to the forward direction of the guide wheel 202.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A portable concrete structure testing device, characterized in that: include, The walking assembly includes a chassis with at least three rolling wheels arranged on the chassis; The position adjustment assembly includes a first connecting arm that is rotatably connected to the chassis and can swing up and down, a second connecting arm that is hinged to the end of the first connecting arm away from the chassis, and a connecting plate that is connected to the end of the second connecting arm away from the first connecting arm. The detection component includes a connecting bracket disposed on the end of the connecting plate away from the second connecting arm and an optical axis fixedly connected to the connecting plate. A radar is fixedly connected to the connecting bracket. Several linear sliding sleeves corresponding one-to-one with the optical axis are fixedly connected to the left and right sides of the connecting bracket. The linear sliding sleeves are slidably connected to the corresponding optical axis. An elastic element is fitted on the optical axis. The two ends of the elastic element are respectively connected to the connecting plate and the end of the linear sliding sleeve opposite to the connecting plate. The elastic element is always in a compressed state.

2. The portable concrete structure testing device as described in claim 1, characterized in that: The front and rear sides of the connecting bracket are detachably connected to roller brackets, the roller brackets are connected to roller shafts, and the roller shafts are connected to at least two guide wheels spaced apart in the left and right direction. The bottom edge of the outer circumference of the guide wheels is lower than the bottom of the connecting bracket.

3. The portable concrete structure testing device as described in claim 1, characterized in that: A vertical rod is fixedly connected to the bottom of the connecting plate. The vertical rod is set on the connecting bracket in the left-right direction with one side facing outward. A first sensor and a second sensor are connected to the vertical rod in the front-back direction, close to either linear sliding sleeve. The second sensor is set close to the bottom of the connecting plate, and the first sensor is below the second sensor.

4. The portable concrete structure testing device as described in claim 3, characterized in that: Both the first sensor and the second sensor are preferably travel-limiting metal sensing sensors.

5. The portable concrete structure testing device as described in claim 1, characterized in that: The optical axis is internally threaded with a limiting screw, and a limiting washer is fixed at the bottom of the limiting screw to restrict the downward movement of the linear sliding sleeve. The upper side of the limiting washer abuts against the bottom of the optical axis.

6. The portable concrete structure testing device as described in claim 1, characterized in that: The position adjustment assembly also includes an angle adjustment motor fixedly connected to the chassis. An adapter sleeve is connected to the output shaft of the angle adjustment motor. A column is fixedly connected to the upper end of the adapter sleeve. A first linear actuator is hinged to the column. A first push-pull rod extending outward and capable of reciprocating linear motion is connected to the first linear actuator. The upper end of the first push-pull rod is hinged to the lower part of the first connecting arm. A second linear actuator is hinged to the lower part of the upper part of the first connecting arm. A second push-pull rod extending outward and capable of reciprocating linear motion is hinged to the second linear actuator. The end of the second push-pull rod away from the second linear actuator is hinged to the lower part of the second connecting arm.

7. The portable concrete structure testing device as described in claim 6, characterized in that: The first connecting arm has an installation groove at the end away from the second connecting arm. A drive motor is fixedly connected to the first connecting arm through the installation groove. A reducer is fixedly connected to the end of the second connecting arm. The drive motor provides a power source for the reducer. A drive shaft is connected to the output end of the reducer. Fixed brackets are fixedly connected to the side of the connecting plate opposite to the second connecting arm and spaced apart in the front-rear direction. The two ends of the drive shaft are respectively connected to the two fixed brackets.

8. The portable concrete structure testing device as described in claim 1, characterized in that: A handle for easy pushing and pulling is fixedly connected to the upper side of one end of the chassis in the front-rear direction.

Images