Schmidt impact point indicator for safety inspection and diagnosis of structures

Abstract

The present invention describes various embodiments related to a Schmidt hammer impact point marking device for safety inspection and diagnosis, wherein a plurality of marking pens can be arranged horizontally or vertically to protect the plurality of marking pens depending on use to mark Schmidt hammer impact points on a structure. According to one embodiment, the Schmidt hammer impact point marking device for safety inspection and diagnosis comprises: a housing; first and second marking plates rotatably coupled to both sides of the housing and having a plurality of first and second marking pens arranged thereon to mark Schmidt hammer impact points on a structure, wherein the first and second marking plates rotate to be arranged horizontally or vertically depending on use; and a first locking part disposed on the first and second marking plates and engaging or disengaging the locking so that the first and second marking plates can be arranged horizontally depending on rotation. It may include a second locking part that is positioned on the first and second marking plates and locks or releases the locking so that the first and second marking plates can be positioned vertically according to rotation, and various other embodiments are also possible.

Description

Technology Field

[0001] The present invention relates to a Schmidt hammer impact point marking device for safety inspection and diagnosis, and more specifically, to a Schmidt hammer impact point marking device for safety inspection and diagnosis that allows a plurality of marking pens for marking Schmidt hammer impact points on a structure to be arranged horizontally when in use or vertically when not in use. Background Technology

[0002] In general, as the number of aging social infrastructure facilities increases, non-destructive testing (NDT) is emerging as a critical task for the safe maintenance of these facilities and ensuring the safety of existing structures. In particular, with the rise in cases of remodeling structures considering economic feasibility, usability, and efficiency, the importance of NDT is being further emphasized in relation to the assessment of structural safety and the recyclability of demolished facilities. Steel and concrete are the primary materials used in existing social infrastructure, and since concrete accounts for a larger proportion, NDT for concrete is essential. Currently, the Schmidt hammer method is a widely used non-destructive testing method for concrete. The Schmidt hammer method is used to measure the hardness of concrete structures and is widely utilized due to its operation based on a relatively simple principle.

[0003] The Schmidt hammer method is a technique for measuring hardness by forming a total of 20 orthogonal points on the surface of concrete to be measured—by drawing four parallel horizontal lines at 3 cm intervals and five vertical lines at 3 cm intervals—and then striking each point with a Schmidt hammer. Although this method operates on a simple principle, it requires a significant amount of time and effort during the process. In particular, the task of drawing the orthogonal lines relies on manual labor, which results in inconvenience and inefficiency. Therefore, improvements are required to increase work efficiency and reduce the burden on workers.

[0004] However, the currently used Schmidt hammer method has several issues during the work process. When marking the impact points on a structure using marking pens, the pens are always positioned horizontally and facing the front of the structure; consequently, errors may occur where the impact points are unintentionally marked when the pens are not in use. Furthermore, since the pens remain horizontally positioned facing the front even when not in use, there is a risk that they may easily collide with and be damaged. These issues not only reduce the accuracy and efficiency of the work but also cause inconvenience to the worker. Therefore, there is a need for a device to protect the marking pens when they are not in use to resolve these problems.

[0005] A prior art document related to the present invention is Korean Registered Patent Publication No. 10-2652656 (published on March 29, 2024), in which technology regarding a "Schmidt hammer impact point indicator for structural safety diagnosis" is disclosed. Prior art literature

[0006] Republic of Korea Registered Patent No. 10-2652656 (March 29, 2024) The problem to be solved

[0007] The objective of the present invention is to provide a Schmidt hammer impact point marking device for safety inspection and diagnosis, comprising first and second marking plates having a plurality of marking pens arranged on both sides of a housing, wherein the first and second marking plates can be rotated to be positioned horizontally to mark an impact point on a structure or rotated to be positioned vertically to switch to an unused state. means of solving the problem

[0008] According to various embodiments of the present invention, a Schmidt hammer impact point marking device for safety inspection and diagnosis comprises: a housing; first and second marking plates rotatably coupled to both sides of the housing and having a plurality of first and second marking pens arranged thereon to mark Schmidt hammer impact points on a structure, wherein the first and second marking plates rotate to be positioned horizontally or vertically depending on use; and a first locking part disposed on the first and second marking plates and engaging or disengaging the locking so that the first and second marking plates can be positioned horizontally depending on rotation. The invention includes a second locking part that is positioned on the first and second marking plates and locks or releases the locking so that the first and second marking plates can be positioned vertically according to rotation, wherein the first and second marking plates are rotated to position the first and second marking pens horizontally by the first locking part to mark a Schmidt hammer impact point on a structure, wherein when the first and second marking pens are used, the first and second marking plates are positioned to face the front of the structure, and the first and second marking plates are rotated to position the first and second marking pens vertically by the second locking part so that the first and second marking pens are not used, and wherein when the first and second marking pens are not used, the first and second marking plates are positioned to be spaced apart from the front of the structure.

[0009] The first locking part is characterized by comprising: a circular first housing that is protruded and disposed on each side of the first and second marking plates and is coupled to or separated from a first coupling groove formed on both sides of the housing according to rotation; a pair of first locker members that are movably coupled to the circular first housing and, when coupled to or separated from the first coupling groove, move by elastic force to be inserted into a pair of first locking grooves formed inside the first coupling groove to be caught or disengaged to release the locking; and a first elastic member disposed between the pair of first locker members and providing elastic force to enable the pair of first locker members to move.

[0010] The second locking part is characterized by comprising: a circular second housing that is protruded from the lower surface of the first marking plate and is coupled to or separated from a second coupling groove formed on the lower surface of the second marking plate according to rotation; a pair of second locker members that are movably coupled to the circular second housing and, when coupled to or separated from the second coupling groove, move by elastic force to be inserted into a pair of second locking grooves formed inside the second coupling groove to be caught or disengaged to release the locking; and a second elastic member disposed between the pair of second locker members and providing elastic force to enable the pair of second locker members to move.

[0011] In addition, the side of the first marking plate is characterized by having a pair of retaining protrusions formed protruding from it, which are coupled to a pair of retaining grooves formed on the side of the second marking plate to maintain the horizontal arrangement of the first and second marking plates. Effects of the invention

[0012] According to various embodiments of the present invention, first and second marking plates are configured to be rotatably coupled to both sides of a housing, and when the first and second marking plates are used, the first and second marking plates are rotated to horizontally arrange a plurality of first and second marking pens placed on the first and second marking plates, thereby allowing the plurality of first and second marking pens to mark Schmidt hammer impact points on a structure. Additionally, when the first and second marking plates are not used, the first and second marking plates are rotated to vertically arrange the plurality of first and second marking pens, thereby preventing errors in which Schmidt hammer impact points are marked at locations unintended by the operator, as well as preventing the marking pens from hitting and being damaged on the front surface of the structure.

[0013] In addition, by controlling the rotation of the marking plate through the first and second locking parts, the usage and non-use states of the marking pens can be stably maintained. Therefore, the use and protection of the marking pens can be further improved. Brief explanation of the drawing

[0014] FIG. 1 is an exploded perspective view showing a first locking part among the components of a Schmidt hammer impact point indicator device for safety inspection and diagnosis according to various embodiments of the present invention. FIG. 2 is an exploded perspective view showing a second locking part among the components of a Schmidt hammer impact point indicator device for safety inspection and diagnosis according to various embodiments of the present invention. FIG. 3 is a perspective view showing the combined state of a Schmidt hammer impact point indicator for safety inspection and diagnosis according to various embodiments of the present invention. FIG. 4 is a perspective view showing the operating state of the first locking part among the configurations of a Schmidt hammer impact point indicator device for safety inspection and diagnosis according to various embodiments of the present invention. FIG. 5 is a perspective view showing the operating state of a Schmidt hammer impact point indicator for safety inspection and diagnosis according to various embodiments of the present invention. FIG. 6 is a perspective view showing the operating state of the second locking part among the configurations of a Schmidt hammer impact point indicator device for safety inspection and diagnosis according to various embodiments of the present invention. Specific details for implementing the invention

[0015] The present invention is capable of various modifications and may have various embodiments, and some embodiments are described in detail with reference to the drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0016] Terms including ordinal numbers, such as 'first', 'second', etc., may be used to describe various components, but said components are not limited by said terms. Such terms are used solely for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be named the second component, and similarly, the second component may be named the first component. The term 'and / or' includes a combination of a plurality of related described items or any of a plurality of related described items.

[0017] Additionally, relative terms described based on what is visible in the drawings, such as 'front,' 'rear,' 'top,' and 'bottom,' may be replaced with ordinal numbers such as 'first,' 'second,' etc. Regarding ordinal numbers such as 'first,' 'second,' etc., their order may be the order in which they are mentioned or arbitrarily determined, and may be changed arbitrarily as necessary.

[0018] The terms used in this invention are used merely to describe specific embodiments and are not intended to limit the invention. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this invention, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0019] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an ideal or overly formal sense unless explicitly defined in this invention.

[0020] FIG. 1 is an exploded perspective view showing a first locking part (140) among the components of a Schmidt hammer impact point display device (100) for safety inspection and diagnosis according to various embodiments of the present invention; FIG. 2 is an exploded perspective view showing a second locking part (150) among the components of a Schmidt hammer impact point display device (100) for safety inspection and diagnosis according to various embodiments of the present invention; FIG. 3 is a perspective view showing the assembled state of a Schmidt hammer impact point display device (100) for safety inspection and diagnosis according to various embodiments of the present invention; FIG. 4 is a perspective view showing the operating state of the first locking part (140) among the components of a Schmidt hammer impact point display device (100) for safety inspection and diagnosis according to various embodiments of the present invention; FIG. 5 is a perspective view showing the operating state of a Schmidt hammer impact point display device (100) for safety inspection and diagnosis according to various embodiments of the present invention; and FIG. 6 is a perspective view of the present invention This is a perspective view showing the operating state of the second locking part (150) among the configurations of the Schmidt hammer impact point indicator device (100) for safety inspection and diagnosis according to various embodiments.

[0021] Referring to FIGS. 1 to 6, a Schmidt hammer impact point indicator device (100) for safety inspection and diagnosis may include a housing (110), first and second marking plates (120, 130), and first and second locking parts (140, 150). For example, first and second mounting grooves (110a) for mounting the first and second marking plates (120, 130) may be formed on both sides of the housing (110). For example, the first and second mounting grooves (110a) can mount the first and second marking plates (120, 130) when the first and second marking plates (120, 130) are rotated and positioned vertically.

[0022] The first and second seating grooves (110a) can detach the first and second marking plates (120, 130) when the first and second marking plates (120, 130) are rotated and positioned horizontally.

[0023] A handle (112) may be formed on the upper part of the housing (110) so that a worker can grasp it and press it from top to bottom.

[0024] The first and second marking plates (120, 130) can be rotatably coupled to both sides of the housing (110). For example, the first and second marking plates (120, 130) can be rotated on both sides of the housing (110) by means of a plurality of hinges (113).

[0025] The above first and second marking plates (120, 130) may have a plurality of first and second marking pens (121, 131) arranged to mark the Schmidt hammer impact point on the structure (10).

[0026] When marking a Schmidt hammer impact point on the surface of the structure (10), the plurality of first and second marking pens (121, 131) can move up and down vertically by means of elastic force in the plurality of moving grooves (122, 132) on the surface of the structure (10) to come into contact with the surface of the structure (10) and mark the Schmidt hammer impact point. Inside the plurality of moving grooves, coil springs (123, 133) that provide elastic force to ensure that the plurality of first and second marking pens (121, 131) come into contact with the surface of the structure (10) may be disposed.

[0027] The first and second marking plates (120, 130) can be rotated to be positioned horizontally or vertically depending on use.

[0028] For example, the first locking part (140) can be placed on the first and second marking plates (120, 130), and can be locked or unlocked so that the first and second marking plates (120, 130) can be placed horizontally according to rotation.

[0029] These first and second marking plates (120, 130) are rotated to horizontally position the first and second marking pens (121, 131) and use them to mark the Schmidt hammer impact points on the structure (10). For example, the first and second marking plates (120, 130) are positioned to face the front of the structure when using multiple first and second marking pens (121, 131).

[0030] The first locking part (140) may include a circular first housing (141), a pair of first locker members and a first elastic member (143).

[0031] For example, the first circular housing (141) may be protruded and positioned on each side of the first and second marking plates (120, 130), and may be coupled or separated by rotation into the first coupling groove (111) formed on both sides of the housing (110).

[0032] In addition, the first housing (141) of the circular shape may have a sliding movement hole formed therein so that the pair of first rocker members (142) can be joined and moved at the same time.

[0033] The above pair of first locker members (142) can be movably coupled to the circular first housing (141) and can be coupled to the first coupling groove (111) on both sides of the housing (110), or when separated, can be moved by elastic force to be inserted into a pair of first locking grooves (114) formed inside the first coupling groove (111) to be caught or disengaged to release the lock.

[0034] The first elastic member (143) may be positioned between the pair of first rocker members (142) and may provide elastic force to allow the pair of first rocker members (142) to move.

[0035] That is, when the first and second marking plates (120, 130) are rotated and positioned vertically, the first circular housing (141) can be coupled to the first coupling groove (111) formed on both sides of the housing (110).

[0036] At this time, a pair of first locker members (142) of the first circular housing (141) can be inserted into the interior of the first circular housing (141) by sliding as they are coupled into the interior of the first coupling groove (111).

[0037] At this time, the pair of first rocker members (142) can be compressed by the elastic force of the first elastic member (143).

[0038] At this time, when the pair of first locker members (142) are brought into contact with the pair of first locking grooves (114) formed inside the first coupling groove (111), the pair of first locker members (142) can be slid and moved by the tensile force of the first elastic member (143) and inserted into the pair of first locking grooves (114).

[0039] For example, the pair of first locker members (142) can be inserted into the pair of first locking grooves (114) and simultaneously fixed. That is, the first and second marking plates (120, 130) can be maintained in a vertically arranged state.

[0040] Here, when the first and second marking plates (120, 130) are arranged horizontally, if a worker grabs and pulls the first and second marking plates (120, 130), the first and second marking plates (120, 130) can be rotated and arranged horizontally at the same time. At this time, the first locking part (140) also rotates together, and the pair of first locker members (142) can be disengaged from the pair of first locking grooves (114).

[0041] At this time, the first circular housing (141) can be separated from the first coupling groove formed on both sides of the housing (110).

[0042] At this time, the first and second marking plates (120, 130) can be rotated and positioned horizontally.

[0043] The second locking part (150) can be placed on the first and second marking plates (120, 130) and can be locked or unlocked so that the first and second marking plates (120, 130) can be placed horizontally according to rotation. Accordingly, the first and second marking plates (120, 130) can be placed facing the front of the structure (10), and at the same time, the plurality of first and second marking pens (121, 131) can also be placed facing the front of the structure (10). In this state, the plurality of first and second marking pens (121, 131) can mark the Schmidt hammer impact point on the structure (10).

[0044] The second locking part (150) may include a circular second housing (151), a pair of second locker members, and a second elastic member (153).

[0045] For example, the circular second housing (151) may be protruded from the lower surface of the first marking plate (120) and may be coupled or separated by rotation into the second coupling groove (134) formed on the lower surface of the second marking plate (130).

[0046] Additionally, the circular second housing (151) may have a sliding movement hole formed therein so that the pair of second rocker members (152) can be joined and moved at the same time.

[0047] The above pair of second locker members (152) can be movably coupled to the circular second housing (151). The above pair of second locker members (152) can be coupled to the second coupling groove (134) on the lower surface of the second marking plate (130) or can be moved by elastic force when separated. That is, when the above pair of second locker members (152) are coupled to the second coupling groove (134), they can be inserted into the pair of second locking grooves (134a) formed inside the second coupling groove (134) to be caught or disengaged to release the lock.

[0048] The second elastic member (153) may be positioned between the pair of second rocker members (152) and may provide elastic force to allow the pair of second rocker members (152) to move.

[0049] That is, when the first and second marking plates (120, 130) are rotated and arranged horizontally, the second circular housing (151) can be coupled to the second coupling groove (134) formed on the lower surface of the second marking plate (130).

[0050] At this time, a pair of second locker members (152) of the second circular housing (151) can be inserted into the interior of the second circular housing (151) by sliding as they are coupled into the interior of the second coupling groove (134).

[0051] At this time, the pair of second rocker members (152) can be compressed by the elastic force of the second elastic member (153).

[0052] At this time, when the pair of second locker members (152) come into contact with the pair of second locking grooves (134a) formed inside the second coupling groove (134), the pair of second locker members (152) can be slid and moved by the tensile force of the second elastic member (153) and inserted into the pair of second locking grooves (134a).

[0053] At this time, the pair of second locker members (152) can be inserted into the pair of second locking grooves (134) and fixed at the same time, and the first and second marking plates (120, 130) can be maintained in a horizontally arranged state.

[0054] At this time, a pair of retaining protrusions (120a) are formed protruding from the side of the first marking plate (120) to be coupled to a pair of retaining grooves (130a) formed on the side of the second marking plate (130) so as to maintain the horizontal arrangement of the first and second marking plates (120, 130). Therefore, when the first marking plate (120) is rotated and arranged horizontally, the pair of retaining protrusions (120a) of the first marking plate (120) can be fitted and coupled to a pair of retaining grooves (130a) formed on the second marking plate (130).

[0055] Accordingly, the pair of retaining protrusions (120a) are fitted into the pair of retaining grooves (130a), thereby allowing the first and second marking plates (120, 130) to be maintained in a horizontally positioned state.

[0056] Here, when the first and second marking plates (120, 130) are arranged vertically, if a worker grabs and pulls the first and second marking plates (120, 130), the first and second marking plates (120, 130) can be rotated and arranged vertically at the same time. At this time, the pair of second locker members (152) can also rotate together and the pair of second locker members (152) can be disengaged from the pair of second locking grooves (134a).

[0057] At this time, the circular second housing (151) can be separated from the second coupling groove (134) formed on the lower surface of the first marking plate (120).

[0058] At this time, the first and second marking plates (120, 130) can be rotated and positioned vertically. For example, the first and second marking plates (120, 130) are positioned so as to be spaced apart from the front of the structure (10) when the plurality of first and second marking pens (121, 131) are not in use.

[0059] At the same time, a pair of retaining protrusions (120a) of the first marking plate (120) can be separated from a pair of retaining grooves (130a) of the second marking plate (130).

[0060] In this way, the first and second marking plates (120, 130) rotate to vertically position the first and second marking pens (121, 131) so that the first and second marking pens (121, 131) are not used. Accordingly, the first and second marking pens (121, 131) can be prevented from being damaged by hitting the structure when not in use, thereby protecting the first and second marking pens (121, 131), and also, these first and second marking pens (121, 131) can prevent an error mark of the Schmidt hammer impact point on the structure (10).

[0061] The Schmidt hammer impact point indicator device for safety inspection and diagnosis of the various embodiments of the present invention described above is not limited by the aforementioned embodiments and drawings, and it will be obvious to those skilled in the art that various substitutions, modifications, and changes are possible within the technical scope of the present invention. Explanation of the symbols

[0062] 100: Schmidt hammer impact point indicator for safety inspection and diagnosis 110: Housing 120, 130: 1st, 2nd marking plates 140, 150: 1st and 2nd locking parts 141, 151: Circular 1st and 2nd housings 142, 152: A pair of 1st and 2nd locker members 143, 153: 1st and 2nd elastic members 120a: A pair of retaining protrusions 130a: A pair of retaining grooves 10: Structures

Claims

Claim 1 In a Schmidt hammer impact point indicator device for safety inspection and diagnosis, a housing; It includes first and second marking plates rotatably coupled to both sides of the housing and arranged with a plurality of first and second marking pens for marking Schmidt hammer impact points on a structure, wherein the first and second marking plates rotate to be positioned horizontally or vertically depending on use; it includes a first locking part disposed on the first and second marking plates and positioning the first and second marking plates vertically or horizontally depending on rotation, wherein the first locking part is inserted into and engaged with a pair of first locking grooves formed inside a first coupling groove formed on both sides of the housing to position the first and second marking plates vertically, and includes a pair of first locker members that disengage from the pair of first locking grooves to release the engagement to position the first and second marking plates horizontally, and includes a second locking part disposed on the first and second marking plates and positioning the first and second marking plates horizontally or vertically depending on rotation, and The second locking portion includes a pair of second locker members that are inserted into and engaged with a pair of second locking grooves formed inside a second coupling groove formed on the lower surface of the second marking plate so that the first and second marking plates can be arranged horizontally, and disengage from the pair of second locking grooves to release the engagement so that the first and second marking plates can be arranged vertically; the first and second marking plates are rotated to arrange the first and second marking pens horizontally to mark a Schmidt hammer impact point on a structure, and when the first and second marking pens are used, the first and second marking plates are arranged to face the front of the structure, and the first and second marking plates are rotated to arrange the first and second marking pens vertically so that the first and second marking pens are not used, and when the first and second marking pens are not used, the first and second marking plates are arranged to be spaced apart from the front of the structure. A Schmidt hammer impact point indicator for safety inspection and diagnosis characterized by the following. Claim 2 A Schmidt hammer impact point indicator device for safety inspection and diagnosis according to claim 1, wherein the first locking part comprises: a circular first housing protrudingly disposed on each side of the first and second marking plates and coupled to or separated from a first coupling groove formed on both sides of the housing according to rotation; a pair of first locker members movably coupled to the circular first housing and, when coupled to or separated from the first coupling groove, move by elastic force to be inserted into a pair of first locking grooves formed inside the first coupling groove to engage or disengage to release the locking; and a first elastic member disposed between the pair of first locker members and providing elastic force to enable the pair of first locker members to move. Claim 3 A Schmidt hammer impact point indicator device for safety inspection and diagnosis according to claim 1, wherein the second locking part comprises: a circular second housing protruding from the lower surface of the first marking plate and coupled to or separated from a second coupling groove formed on the lower surface of the second marking plate according to rotation; a pair of second locker members movably coupled to the circular second housing and, when coupled to or separated from the second coupling groove, move by elastic force to be inserted into a pair of second locking grooves formed inside the second coupling groove to engage or disengage to release the locking; and a second elastic member disposed between the pair of second locker members and providing elastic force to enable the pair of second locker members to move. Claim 4 A Schmidt hammer impact point marking device for safety inspection and diagnosis according to claim 1, characterized in that a pair of retaining protrusions are formed protruding from the side of the first marking plate, which are coupled to a pair of retaining grooves formed on the side of the second marking plate to maintain the horizontal arrangement of the first and second marking plates.

Images