Device for replacing concrete surface defect test blocks

Abstract

The present application relates to a device for replaceable concrete surface defect test blocks, comprising a fixing, at least one connecting piece fixedly connected to the fixing, a fastener corresponding to the connecting piece and connected to the connecting piece, and a plurality of concrete surface defect test blocks, wherein the fastener can adjust the height relative to the connecting piece to fix the concrete surface defect test blocks. In the above-mentioned embodiment, the concrete surface defect test blocks are quickly disassembled and fixed by providing threaded connecting pieces and fasteners, and the connecting piece fixedly connected to the fixing piece is provided to limit the position of the concrete surface defect test blocks. This solution can be achieved by matching a plurality of concrete surface defect test blocks with different surface defects and replacing them in time, so that the device for replaceable concrete surface defect test blocks can have a variety of different surface defects to adapt to the wall-climbing robot for surface defect identification and repair tests.

Description

Technical Field

[0001] The present application relates to the technical field of concrete surface defect simulation detection test equipment, and in particular to a device capable of replacing a concrete surface defect test block. Background Art

[0002] During the construction and service of concrete bridges, due to factors such as poor design, improper construction, poor maintenance management, and corrosion of the concrete itself, various types of defects often exist on the surface of the structure, such as honeycombs, rough surfaces, exposed steel bars, holes, wear, corrosion, spalling, cracks, corner loss, and uneven surfaces. These defects not only affect the appearance and durability of the structure, but also accelerate the invasion of corrosive ions, causing corrosion of the concrete matrix and steel bars, and ultimately affecting the service life of the structure. Therefore, it is an important part of bridge health monitoring and maintenance to inspect and discover bridge diseases and abnormal phenomena as early as possible, correctly evaluate the damage type and degree of the structure, and adopt corresponding reinforcement and maintenance methods to prevent further expansion of bridge surface damage.

[0003] When faced with super-high piers or towers of large concrete box girder structures, suspension bridges or cable-stayed bridges, it is difficult for personnel to frequently climb up for inspection, and the conventional non-destructive testing methods for reinforced concrete structure bridges are no longer applicable. Using modern technologies such as intelligent robots, drones, high-definition cameras, image analysis, and artificial intelligence, we have developed intelligent recognition and analysis technologies for different types of surface defects of large reinforced concrete structure bridges, which will help to achieve automatic detection and evaluation of surface defects of super-high, super-large, and complex-shaped bridge structures in complex service environments.

[0004] The development of wall-climbing robots and the accompanying surface defect identification and repair technologies is an important and feasible way to carry out surface inspection and maintenance of large reinforced concrete structures. However, in the existing technology, the test sites for concrete surface defects tested by robots are small in scale and type, which hinders the use of wall-climbing robots to carry out surface defect identification and repair tests for the purpose of surface inspection and maintenance of large reinforced concrete structures. Summary of the invention

[0005] Based on this, it is necessary to provide a device that can replace concrete surface defect test blocks, aiming to solve the problems of small scale and few types of test sites for concrete surface defects in the prior art.

[0006] The present application provides a device for replacing concrete surface defect test blocks, comprising a fixing member, at least one connecting member fixedly connected to the fixing member, a fastener corresponding to the connecting member one by one and connected to the connecting member, and a plurality of concrete surface defect test blocks, wherein the fastener can adjust the height relative to the connecting member to fix the concrete surface defect test blocks.

[0007] In the above embodiment, the concrete surface defect test block is quickly disassembled and fixed by setting threaded connectors and fasteners, and the connectors that are fixedly connected to the fixings are set to limit the position of the concrete surface defect test block. This solution can be equipped with multiple concrete surface defect test blocks with different surface defects and replaced in time, so that the device that can replace the concrete surface defect test block can have a variety of different surface defects to adapt to the wall climbing robot for surface defect identification and repair tests.

[0008] The technical solution of this application is further described below:

[0009] In any embodiment, the connector and the fastener are threadedly connected.

[0010] In any embodiment, the connecting member includes a sleeve with an internal thread, and the fastener includes a bolt and a gasket, the bolt is provided with an external thread to be threadedly connected to the sleeve, one end of the gasket is movably sleeved on the outside of the bolt, and the bolt rotates relative to the sleeve so that the other end of the gasket clamps the concrete surface defect test block between the gasket and the fixing member.

[0011] In any embodiment, the connecting member includes a screw rod having an external thread, and the fastener includes a nut and a gasket, wherein the nut is provided with an internal thread for threaded connection with the screw rod, one end of the gasket is movably sleeved on the outside of the screw rod, and the nut is rotated relative to the screw rod so that the other end of the gasket clamps the concrete surface defect test block between the gasket and the fixing member.

[0012] In any embodiment, each of the concrete surface defect test blocks is provided with a concave groove at a position corresponding to the gasket.

[0013] In any embodiment, the fixing member has a concave placement area for placing the concrete surface defect test block, the fastener is located at the edge of the placement area, and the concrete surface defect test block is provided with a notch corresponding to the position of the fastener.

[0014] In any embodiment, the number of the connecting members is an even number, and the connecting members are symmetrically arranged in pairs about the center of the fixing member.

[0015] In any embodiment, the number of the connecting members is two, and the two connecting members are located at opposite corners of the fixing member.

[0016] In any embodiment, the connecting member and the fixing member are welded.

[0017] In any embodiment, the fixing member is made of stainless steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of this application are used to provide further understanding of this application. The schematic implementation modes and descriptions of this application are used to explain this application and do not constitute improper limitations on this application.

[0019] In order to more clearly illustrate the technical solutions in the implementation modes of the present application, the drawings required for use in the description of the implementation modes will be briefly introduced below. Obviously, the drawings described below are only some implementation modes of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a top view of the device for replacing a concrete surface defect test block shown in the first embodiment of the present application;

[0021] Figure 2 yes Figure 1 A cross-sectional view of

[0022] Figure 3 It is a top view of the device for replacing a concrete surface defect test block shown in the second embodiment of the present application;

[0023] Figure 4 yes Figure 3 A cross-sectional view of

[0024] Figure 5 It is a top view of the device for replacing a concrete surface defect test block shown in the third embodiment of the present application;

[0025] Figure 6 yes Figure 5 sectional view of .

[0026] Description of reference numerals:

[0027] 100. Device for replacing concrete surface defect test block; 110. Fixing member; 111. Placement area; 120. Connecting member; 130. Fastener; 131. Bolt; 132. Washer; 133. Nut; 140. Concrete surface defect test block; 141. Groove; 142. Notch. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific implementation methods disclosed below.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific implementation methods and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0030] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0031] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0036] Combine the following Figure 1 and Figure 2 , describing implementation mode 1 of the present application.

[0037] like Figure 1 and Figure 2 As shown, a device 100 for replacing concrete surface defect test blocks is shown in the first embodiment of the present application, including a fixing member 110, at least one connecting member 120 fixedly connected to the fixing member 110, a fastener 130 corresponding to the connecting member 120 and connected to the connecting member 120, and a plurality of concrete surface defect test blocks 140. The fastener 130 can adjust its height relative to the connecting member 120 to fix the concrete surface defect test blocks 140.

[0038] The fixing member 110 is used to place the concrete surface defect test block 140. Figure 1 and Figure 2 In the illustrated embodiment, the concrete surface defect test block 140 is placed on the upper surface of the fixing member 110 .

[0039] The fixing member 110 can be made of metal material or the like. Figure 1 and Figure 2In the illustrated embodiment, the fixing member 110 is made of stainless steel. The fixing member 110 may be, but is not limited to, a square stainless steel plate. The size of the fixing member 110 may be 110 mm × 110 mm × 10 mm, in which case the size of the concrete surface defect test block 140 may be correspondingly set to 100 mm × 100 mm × 30 mm. Alternatively, the size of the fixing member 110 may be 310 mm × 310 mm × 10 mm, in which case the size of the concrete surface defect test block 140 may be correspondingly set to 300 mm × 300 mm × 30 mm. The multiple concrete surface defect test blocks 140 applied to the same fixing member 110 have the same size and the same structure as the mating part of the fixing member 110, but the types of their surface defects are different.

[0040] The connecting member 120 is fixedly connected to the fixing member 110. The connecting member 120 can be connected to the fixing member 110 by snap-fit ​​connection, thread connection, etc. Figure 1 and Figure 2 In the illustrated embodiment, the connecting member 120 is pre-embedded in the fixing member 110 and welded to the fixing member 110 .

[0041] See also Figure 1 According to some embodiments of the present application, optionally, the number of the connectors 120 is an even number, and the multiple connectors 120 are arranged symmetrically in pairs about the center of the fixing member. The connectors 120 are located at the outer edge of the concrete surface defect test block 140. When the connectors 120 are arranged symmetrically in pairs about the center of the fixing member 110, the distribution of the connectors 120 is relatively dispersed, and the concrete surface defect test block 140 can be fixed as evenly as possible. In some embodiments, the distance between the connector 120 and the edge of the fixing member 110 is 5-10 mm, and preferably, the distance between the connector 120 and the edge of the fixing member is 5 mm.

[0042] In such Figure 1 and Figure 2 In the illustrated embodiment, there are two connectors 120, and the two connectors 120 are located at diagonal corners of the fixing member 110. Accordingly, the number of fasteners 130 corresponds to the number of connectors 120, and the number is also two. The two fasteners 130 are located at diagonal corners of the fixing member 110 and connected to the connector 120.

[0043] In such Figure 1 and Figure 2 In the embodiment shown, the connector 120 and the fastener 130 are threadedly connected. Figure 2 As shown, the connecting member 120 includes a sleeve with an internal thread, and the outer side of the sleeve is welded to the fixing member 110. Figure 2In the illustrated embodiment, the top of the connecting member 120 is flush with the upper surface of the fixing member 110. The fastener 130 includes a bolt 131 and a washer 132. The bolt 131 is sleeved inside the sleeve and is provided with an external thread to be threadedly connected with the sleeve. One end of the washer 132 is movably sleeved outside the bolt 131 and can move up and down and rotate relative to the bolt 131. The bolt 131 includes a screw end with an external thread and a bolt head, and the washer 132 is sleeved on the screw end so that when the bolt 131 rotates relative to the sleeve, the other end of the washer 132 clamps the concrete surface defect test block 140 between the washer 132 and the fixing member 110. When the bolt 131 rotates downward relative to the connecting member 120, the distance between the bolt head and the connecting member 120 becomes smaller and smaller, and the movable distance of the washer 132 becomes smaller and smaller. When the gasket 132 is between the bolt head and the concrete surface defect test block 140 and cannot move relative to each other, the bolt head and the concrete surface defect test block 140 both have an interaction force on the gasket 132. At this time, the gasket 132 clamps the concrete surface defect test block 140 between the gasket 132 and the fixing member 110. In some embodiments, the gasket 132 can also be fixedly connected to the bolt 131.

[0044] In order to make the connection between the fastener 130 and the connector 120 more secure, the length of the bolt 131 is usually greater than the thickness of the concrete surface defect test block 140 and less than the sum of the thickness of the concrete surface defect test block 140 and the depth of the connector 120. Figure 1 and Figure 2 In the illustrated embodiment, the bolt 131 is a tapered bolt, the diameter of the bolt 131 is 10-20 mm, and the length is more than twice the thickness of the concrete surface defect test block 140. For example, a tapered bolt of M14×80 is selected.

[0045] In such Figure 1 and Figure 2 In the illustrated embodiment, each concrete surface defect test block 140 is provided with a concave groove 141 corresponding to the position of the gasket 132. The groove 141 is used to place the gasket 132, so that when the concrete surface defect test block 140 is fixed between the gasket 132 and the fixing member 110 by using the gasket 132, the gasket 132 acts on the groove 141 to prevent the gasket 132 from sliding relative to each other. The depth of the groove 141 can be set to adapt to bolts 131 of different lengths. For example, when the depth of the groove 141 is large, the required length of the bolt 131 can be relatively reduced; when the depth of the groove 141 is shallow, the required length of the bolt 131 is relatively large.

[0046] In such Figure 1 and Figure 2In the embodiment shown, the fastener 130 is located at the opposite corner of the concrete surface defect test block 140, and the concrete surface defect test block 140 is provided with a notch 142 corresponding to the position of the fastener 130. The function of the notch 142 is to have a limiting effect relative to the fastener 130 and to make the area of ​​the concrete surface defect test block 140 as large as possible to facilitate the concrete surface defect test. The notch 142 can be as follows: Figure 2 Square or other shape as shown.

[0047] When it is necessary to replace the concrete surface defect test block 140 with a different surface defect, first place the concrete surface defect test block 140 on the upper surface of the fixing member 110, and make the notch of the concrete surface defect test block 140 correspond to the position of the connecting member 120 and the fastener 130. Then rotate the bolt 131 with the gasket 132 so that the bolt 131 is threadedly connected with the connecting member 120. As the bolt 131 rotates continuously, the length of the bolt 131 protruding from the connecting member 120 gradually decreases, so that the distance between the gasket 132 and the groove 141 of the concrete surface defect test block 140 becomes smaller and smaller until it abuts. At this time, the gasket 132 fixes the concrete surface defect test block 140 between the gasket 132 and the upper surface of the fixing member 110 to complete the fixation of the concrete surface defect test block 140. When it is necessary to disassemble the concrete surface defect test block 140, it is only necessary to rotate the bolt 131 in the opposite direction to disassemble the concrete surface defect test block 140.

[0048] In the above embodiment, the concrete surface defect test block 140 is quickly disassembled and fixed by providing a threaded connector 120 and a fastener 110, and the connector 120 fixedly connected to the fixture 110 is provided to limit the position of the concrete surface defect test block 140. This solution can be equipped with a plurality of concrete surface defect test blocks 140 with different surface defects and replaced in time, so that the device 100 for replacing concrete surface defect test blocks can have a variety of different surface defects to adapt to the wall climbing robot for surface defect identification and repair tests.

[0049] Combine the following Figure 3 and Figure 4 , describing the second implementation mode of the present application.

[0050] In such Figure 3 and Figure 4 In the second embodiment shown, the difference from the first embodiment is that the connecting member 120 includes a screw with an external thread, the fastener 130 includes a nut 133 and a gasket 132, the nut 133 is provided with an internal thread to be threadedly connected to the screw, one end of the gasket 132 is sleeved on the outside of the screw, and the nut 133 rotates relative to the screw so that the other end of the gasket 132 clamps the concrete surface defect test block 140 between the gasket 132 and the fixing member 110.

[0051] In such Figure 3 and Figure 4 In the second embodiment shown, the difference from the first embodiment is that the fixing member 110 has a concave placement area 111 for placing the concrete surface defect test block 140, the fastener 130 is located in the placement area 111 and at the edge of the placement area 111, and the concrete surface defect test block 140 is provided with a notch 142 corresponding to the position of the fastener 130. In this embodiment, by placing the concrete surface defect test block 140 in the placement area 111, the placement area 111 can be used to preliminarily limit the position of the concrete surface defect test block 140.

[0052] In this embodiment, when it is necessary to replace the concrete surface defect test block 140 with different surface defects, the concrete surface defect test block 140 is first placed in the placement area 111 of the fixing member 110, and the placement area 111 is used to preliminarily limit the concrete surface defect test block 140, and the notch 142 of the concrete surface defect test block 140 corresponds to the position of the connecting member 120 and the fastener 130. Then, the nut 133 with the gasket 132 is rotated so that the nut 133 is threadedly connected with the connecting member 120. As the nut 133 rotates continuously, the distance between the gasket 132 and the groove 141 of the concrete surface defect test block 140 becomes smaller and smaller until it abuts. At this time, the gasket 132 fixes the concrete surface defect test block 140 between the gasket 132 and the upper surface of the fixing member 110 to complete the fixation of the concrete surface defect test block 140. When it is necessary to disassemble the concrete surface defect test block 140, it is only necessary to rotate the nut 133 in the opposite direction to disassemble the concrete surface defect test block 140. When the nut 133 rotates downward relative to the connector 120, the distance between the nut 133 and the connector 120 becomes smaller and smaller, and the movable distance of the gasket 132 also becomes smaller and smaller. When the gasket 132 is between the nut 133 and the concrete surface defect test block 140 and cannot move relatively, the nut 133 and the concrete surface defect test block 140 both have an interaction force on the gasket 132, and at this time, the gasket 132 clamps the concrete surface defect test block 140 between the gasket 132 and the fixing member 110. In some embodiments, the gasket 132 can also be fixedly connected to the nut 133.

[0053] In the above embodiment, by placing the concrete surface defect test block 140 in the placement area 111, the placement area 111 can be used to preliminarily limit the concrete surface defect test block 140, and the cooperation between the groove 141 and the gasket 132 of the concrete surface defect test block 140, and the relative position of the notch 142 of the concrete surface defect test block 140 and the fastener 130 can once again play a role in limiting the concrete surface defect test block 140.

[0054] Combine the following Figure 5 and Figure 6 , describing the third implementation mode of the present application.

[0055] In such Figure 5 and Figure 6 In the third embodiment shown, the difference from the first and second embodiments is that the number of the connecting members 120 can also be 4, and the 4 connecting members 120 are arranged around the concrete surface defect test block 140, and the 4 connecting members 120 are not only centrally symmetrical but also symmetrical along two perpendicular axes.

[0056] In such Figure 5 and Figure 6 In the third embodiment shown, the difference from the first and second embodiments is that the fixing member 110 has a concave placement area 111 for placing the concrete surface defect test block 140, the fastener 130 is located outside the placement area 111 and at the edge of the placement area 111, and the concrete surface defect test block 140 does not need to be provided with a notch 142 and a groove 141.

[0057] In such Figure 5 and Figure 6 In the third embodiment shown, the difference from the first and second embodiments is that the gasket 132 is a bow-shaped steel sheet.

[0058] In this embodiment, when it is necessary to replace the concrete surface defect test block 140 with a different surface defect, the concrete surface defect test block 140 is first placed in the placement area 111 of the fixing member 110, and the placement area 111 is used to preliminarily limit the concrete surface defect test block 140. Then, the bolt 131 with the gasket 132 is rotated so that the bolt 131 is threadedly connected with the connecting member 120. As the bolt 131 rotates continuously, the length of the bolt 131 protruding from the connecting member 120 gradually decreases, so that the distance between the gasket 132 and the concrete surface defect test block 140 becomes smaller and smaller until it abuts. At this time, the gasket 132 fixes the concrete surface defect test block 140 between the gasket 132 and the upper surface of the fixing member 110 to complete the fixation of the concrete surface defect test block 140. When it is necessary to disassemble the concrete surface defect test block 140, it is only necessary to rotate the bolt 131 in the opposite direction to disassemble the concrete surface defect test block 140.

[0059] In the above embodiment, by placing the concrete surface defect test block 140 in the placement area 111, the placement area 111 can be used to preliminarily limit the concrete surface defect test block 140, but the groove 141 and the notch 142 are not set in the concrete surface defect test block 140, which can be adapted to the existing concrete surface defect test block 140 and reduce the processing cost of the concrete surface defect test block 140.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A device for replacing a concrete surface defect test block, characterized in that: The invention comprises a fixing member, at least one connecting member fixedly connected to the fixing member, a fastener corresponding to the connecting member and connected to the connecting member, and a plurality of concrete surface defect test blocks, wherein the fastener can adjust the height relative to the connecting member to fix the concrete surface defect test block, the connecting member and the fastener are threadedly connected, the connecting member comprises a sleeve provided with an internal thread, the fastener comprises a bolt and a gasket, the bolt is provided with an external thread to be threadedly connected with the sleeve, one end of the gasket is movably sleeved outside the bolt, the bolt rotates relative to the sleeve so that the other end of the gasket clamps the concrete surface defect test block between the gasket and the fixing member, the fixing member has a concave placement area for placing the concrete surface defect test block, the fastener is located at the edge of the placement area, the concrete surface defect test block is provided with a notch corresponding to the position of the fastener, the number of the connecting members is an even number, and the plurality of connecting members are symmetrically arranged in pairs about the center of the fixing member.

2. The device for replacing concrete surface defect test blocks according to claim 1 is characterized in that: The number of the connecting members is two, and the two connecting members are located at opposite corners of the fixing member.

3. The device for replacing concrete surface defect test blocks according to claim 1, characterized in that: The connecting piece is welded to the fixing piece.

4. The device for replacing concrete surface defect test blocks according to claim 1, characterized in that: The fixing piece is made of stainless steel.

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