Adjustable Height apparatus for Inspection

Abstract

The present invention provides a height-variable inspection device capable of performing inspection regardless of the height of an object to be inspected. The height-variable inspection device of the present invention comprises a support member having an inspection section facing the object to be inspected, a body member having a body section having a body section having a body section having a variable section having a variable section having a protruding length of one end having a variable section

Description

Technology Field

[0001] The present invention relates to a height-variable inspection device. Background Technology

[0002] Structures that float on the water surface or have parts exposed above the water, such as ships or floating structures, are inspected for various purposes, including defect detection, maintenance, and repair work. For example, since corrosion of the hull paint, attachment by marine organisms, or contamination can reduce operational efficiency and shorten the lifespan of ships or floating structures, it is necessary to inspect the hull paint surface for defects and perform maintenance and repair work.

[0003] Then, after the hull of a ship or offshore structure is constructed, water is injected into or drained from the ballast tank, and a draft reading operation is performed to compare the height of the draft mark marked on the side of the hull with the ballast adjustment value. The problem to be solved

[0004] Meanwhile, ships require internal inspection during the construction process or after completion. In particular, internal inspections require workers to approach the inspection target directly; however, depending on the inspection target, the workspace may be narrow, making it difficult for workers to enter, or the ship's interior space may be extensive, potentially delaying work time. Furthermore, since inspection targets are not arranged in a single location, the development of a height-variable inspection device is necessary to ensure work convenience.

[0005] The problem that the present invention aims to solve is to provide a height-variable inspection device capable of performing inspection regardless of the height of the object to be inspected.

[0006] The problems of the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] One side of the height-variable inspection device of the present invention for achieving the above objective comprises a support portion having an inspection portion facing an object to be inspected, a body portion having a lower portion of the support portion, a variable portion having a

[0008] The above driving unit may include a bevel gear unit that rotates the first chain unit in a first direction on one side and the second chain unit in a second direction opposite to the first direction on the other side, so as to vary the height of the variable unit with a single power source, and a motor that forms the power source and transmits rotational force to the bevel gear unit.

[0009] The above driving unit further includes a first sprocket provided at the second point and engaged with the first chain unit, and a second sprocket that forms a concentric axis with the first sprocket and engages with the second chain unit, and the bevel gear unit may include a first gear member connected to the motor, a second gear member provided on one side of the first gear member and connected to the first sprocket, and a second gear member provided on the other side of the first gear member and connected to the second sprocket.

[0010] The body portion comprises a base member that is arranged horizontally with respect to the variable portion and has a guide hole formed therein that forms a concave space along the movement path of the variable portion, and the first chain portion and the second chain portion may include a guide pin portion that is arranged to penetrate the guide hole so as to move along the guide hole.

[0011] The first chain part and the second chain part may be provided with a protruding member at the first point such that the first chain part and the second chain part protrude in opposite directions from each other.

[0012] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0013] The height-variable inspection device according to the present invention can reduce working time by eliminating the need for the operator to move directly, and can improve work efficiency by making inspection easier as the height of the inspection unit can be varied to match the height of the object to be inspected. Brief explanation of the drawing

[0014] FIG. 1 is a front view of a height-variable inspection device according to a first embodiment of the present invention. Figure 2 is a drawing showing the state in which the position of the support member is varied in the height-variable inspection device of Figure 1. Figure 3 is a top view of A in Figure 1. Figure 4 is a drawing illustrating B of Figure 1. FIG. 5 is a drawing showing the state in which the first chain part and the first sprocket of a height-variable inspection device according to the first embodiment of the present invention are engaged. FIG. 6 is a drawing illustrating a guide hole formed in the base member of a height-variable inspection device according to the first embodiment of the present invention. Figure 7 is a drawing showing the cross-sectional state of II in Figure 1. FIG. 8 is a drawing illustrating a roller link of a variable part of a height-variable inspection device according to a first embodiment of the present invention. FIG. 9 is a drawing illustrating a state in which the bending direction of the roller link of FIG. 8 is restricted. FIG. 10 is a drawing illustrating a state in which the second chain part of a height-variable inspection device according to the first embodiment of the present invention is not bent in the direction of the first chain part by the first chain part. FIG. 11 is a drawing illustrating a state in which the first chain part of a height-variable inspection device according to the first embodiment of the present invention is not bent in the direction of the second chain part by the second chain part. FIG. 12 is a front view of a height-variable inspection device according to a second embodiment of the present invention. FIG. 13 is a drawing showing the state in which the position of the support member is varied in the height-variable inspection device of FIG. 12. Specific details for implementing the invention

[0015] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The advantages and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0016] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. In describing with reference to the attached drawings, identical or corresponding components are given the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted.

[0017] FIG. 1 is a front view of a height-variable inspection device according to a first embodiment of the present invention, and FIG. 2 is a view of the height-variable inspection device of FIG. 1 in a state where the position of the support member is varied. FIG. 3 is a top view of A of FIG. 1, and FIG. 4 is a view of B of FIG. 1. Additionally, FIG. 5 is a view of the first chain member and the first sprocket of the height-variable inspection device according to the first embodiment of the present invention in a state where they are engaged.

[0018] In addition, FIG. 6 is a drawing showing a guide hole formed in the base member of a height-variable inspection device according to the first embodiment of the present invention, and FIG. 7 is a drawing showing the cross-sectional state of II in FIG. 1.

[0019] In addition, FIG. 8 is a drawing illustrating a roller link of a variable part of a height-variable inspection device according to a first embodiment of the present invention, and FIG. 9 is a drawing illustrating a state in which the bending direction of the roller link of FIG. 8 is restricted.

[0020] In addition, FIG. 10 is a drawing illustrating a state in which the second chain part of a height-variable inspection device according to the first embodiment of the present invention is not bent in the direction of the first chain part by the first chain part, and FIG. 11 is a drawing illustrating a state in which the first chain part of a height-variable inspection device according to the first embodiment of the present invention is not bent in the direction of the second chain part by the second chain part.

[0021] Referring to FIGS. 1 to 11, a height-variable inspection device (100) according to an embodiment of the present invention may include a support part (110), a body part (130), a variable part (140), and a driving part (150).

[0022] The support member (110) may be provided with an inspection member (120) facing an object to be inspected (not shown) as a support. The support member (110) may have various structures to support the inspection member (120), for example, it may have a horizontal plate structure. The support member (110) is provided on the body member (130), but its position is not fixed to the body member (130) and can be moved up and down by the variable member (140), so that height adjustment can be achieved. Accordingly, the position of the inspection member (120) provided on the upper part of the support member (110) can be adjusted to a position facing the position of the object to be inspected, so that objects of various heights can be inspected with a single device.

[0023] And the inspection unit (120) is a configuration provided for inspecting the inside and outside of a ship or marine structure. For example, the inspection unit (120) may be an inspection device for inspecting welding conditions, painting conditions, etc., but is not limited to a specific use. That is, the inspection unit (120) may be composed of various equipment such as a camera for taking images, a sensor for detecting cracks, etc.

[0024] Furthermore, the inspection unit (120) is not limited to a single piece of equipment, and may be equipped with both a camera and a sensor. Various variations are possible, such as the equipment being replaceable so that the camera can be replaced with another piece of equipment (such as a sensor) after use.

[0025] The body part (130) is configured such that the support part (110) and the variable part (140) are provided, and can be provided at the lower part of the support part (110).

[0026] And the body part (130) may have a structure that allows it to move so as to approach the object to be inspected. For example, the body part (130) may be equipped with wheels (which may be endless wheels) to move, but is not limited thereto. Accordingly, various variations are possible, such as the body part (130) being installed on a rail (not shown) and having a structure that moves along the rail.

[0027] For example, the body part (130) may include base members (131A, 131B) to support the variable part (140).

[0028] Referring to FIG. 6, the base members (131A, 131B) may be arranged horizontally with respect to the variable part (140) and may be formed with various structures that form a horizontal plane. For example, the base members (131A, 131B) may have a plate structure that is erected in a vertical direction.

[0029] In addition, base members (131A, 131B) may be provided as a pair to support each of the first chain member (141) and the second chain member (142) of the variable member (140) which are provided in the front-back direction adjacent to each other.

[0030] And the base member (131A, 131B) may have a guide hole (132A, 132B) formed therein so as to guide the variable part (140) without the variable part (140) being dislodged. The guide hole (132A, 132B) may have a concave space formed along the movement path of the variable part (140), and may have a groove structure or a hole structure so that, for example, the guide pin part (140B) of the variable part (140) can be inserted.

[0031] Additionally, the guide holes (132A, 132B) may be formed to correspond to the movement paths of the first chain section (141) and the second chain section (142) that are symmetrical. For example, the guide hole (132A) formed in the base member (131A) supporting the first chain section (141) may be symmetrical to the guide hole (132B) formed in the base member (131B) supporting the second chain section (142).

[0032] In addition, the guide holes (132A, 132B) serve as guide rails that guide the guide pin portion (140B), and can have a shape in which at least a portion of one side of the base member (131A, 131B) is bent or rolled so that the variable portion (140) having a length can be installed on the base member (131A, 131B) with a narrow area, that is, so that the vertical length of the base member (131A, 131B) does not need to be formed in a straight shape. Furthermore, the guide holes (132A, 132B) with the bent or rolled shape can guide the first chain portion (141) and the second chain portion (142) to move while bending in a curve.

[0033] Of course, the guide ball (132A, 132B) may have a straight shape vertically in the vertical direction at the first point (see FIG. 2, indicated as 'SP1'), which is the path where the first chain part (141) and the second chain part (142) move in the vertical direction.

[0034] The variable part (140) may be provided in the body part (130) and may be connected to the support part (110), and may vary the height of the support part (110) according to a protruding length. The variable part (140) may be provided in pairs and may include, for example, a first chain part (141) and a second chain part (142).

[0035] The first chain section (141) and the second chain section (142) may be made of roller chains. A roller chain may refer to a chain formed by connecting a roller link (1401) made of steel plate (see FIG. 8 and FIG. 9) (a pair of rollers may be provided) and a pin link to each other with pins. The connection relationship of the roller chains is omitted in detail as it is based on known technology. Since these first chain section (141) and the second chain section (142) are made of roller chains, a certain strength can be formed, and a plurality of support points / a certain area can be formed in the horizontal direction, thus supporting the support section (110).

[0036] And the second chain section (142) is provided in a position parallel to the first chain section (141) in the front-rear direction with respect to FIG. 1, and may be provided to intersect with each other at a second point (where sprockets (151A, 151B) may be located) that is spaced apart from the first point (see FIG. 2, indicated as 'SP1'). Accordingly, height adjustment can be achieved by a single motor (152) in conjunction with the operation of the bevel gear section (153) of the drive section (150) described later. Therefore, in this embodiment, the vertical height of the variable section (140) can be adjusted with a single power source, so there is no need to provide the number of motors (152) corresponding to the number of roller chains, thereby reducing the number of motors (152) and reducing power consumption.

[0037] In addition, since the second chain part (142) is not provided on the same plane as the first chain part (141), the first chain part (141) and the second chain part (142) can overlap each other in the front and rear directions on the body part (130), so there is no need for the cross-sectional area of ​​the base member (131A, 131B) of the body part (130) where the first chain part (141) and the second chain part (142) are provided to become excessively large, so the body part (130) can be implemented in a compact size.

[0038] In addition, the second chain part (142) can be moved up and down at one end at the third point (see FIG. 2, indicated as 'SP3'), and in addition, the first chain part (141) can be moved up and down at one end at the first point. Here, the first point and the third point are spaced apart from each other so that the support part (110) forms multiple support points, and can be positioned on the same line in the horizontal direction so that the support part (110) is positioned parallel without tilting.

[0039] In addition, the first chain part (141) can be height-adjusted so that the height of one end of the second chain part (142) and the height of one end of the first chain part (141) are the same so that they can support the support part (110) together with the second chain part (142), and the operation thereof will be described later.

[0040] In addition, the first chain part (141) and the second chain part (142) may include a protruding member (140A) and a guide pin part (140B). Here, since the first chain part (141) and the second chain part (142) differ only in position and have the same shape and mechanism, the description of the first chain part (141) is substituted with the description of the second chain part (142).

[0041] First, referring to FIG. 4, the protruding member (140A) can have the first chain part (141) and the second chain part (142) protrude in opposite directions at the first point and the third point, which are positions where the variable part (140) extends in the vertical direction.

[0042] For example, the protruding member (140A) may protrude in a direction perpendicular to the longitudinal direction of the roller chain (it may be perpendicular to the left and right sides from the direction horizontal to the front of FIG. 1). For example, the protruding member (140A) may form a shape that protrudes between a pair of rollers of the roller link (1401), so that the roller links (1401) of the first chain section (141) and the second chain section (142) may have a shape of '┫' or '┣'. For example, based on FIG. 1, the roller link (1401) of the first chain section (141) may form a shape of '┫' and the roller link (1401) of the second chain section (142) may form a shape of '┣', so that the structure can be reinforced compared to a general roller chain.

[0043] In addition, referring to FIG. 9, the bending angle of the roller links (1401) arranged vertically may be limited due to interference with the protruding members (140A) of adjacent roller links (1401). For example, adjacent roller links (1401) in the vertical direction may be bent up to an angle (θ) where the adjacent protruding members (140A) in the vertical direction can come into contact with each other due to interference with the adjacent protruding members (140A), but angles beyond that may be limited.

[0044] In addition, the protruding member (140A) is not limited to a straight shape, and as shown in FIGS. 8 and 9, a curved surface can be formed in the horizontal direction in the upper and lower directions in the shape of '┫' or '┣'. That is, the shape of '┫' or '┣' is described symbolically, and as long as the structure can limit the bending of the variable part (140) while reinforcing strength by the protruding member (140A), it can be made of a combination of straight and / or curved surfaces.

[0045] For example, the protruding member (140A) may have a circular end structure, and the diameter of the circle may be set in such a way that it limits the bending angle (θ) at which adjacent protruding members (140A) can come into contact with each other. That is, it is not limited to the ratio of the roller link (1401) and the protruding member (140A) exemplified in FIG. 9, and as previously mentioned, various sizes are possible to implement a bending angle (θ) that limits the bending of the variable part (140) so that the first chain part (141) and the second chain part (142) can stand upright at the first point (indicated as 'SP1' in FIG. 2) and the third point (indicated as 'SP3' in FIG. 2).

[0046] For example, the protruding member (140A) at the first point (indicated as 'SP1' in FIG. 2) and the third point (indicated as 'SP3' in FIG. 2) may have a larger diameter compared to the second point so that the bending angle is limited to a range of 5 degrees or less.

[0047] On the other hand, the second point and the adjacent area, particularly the area where a large bending angle is required, may have a diameter of the protruding member (140A) that is smaller than the protruding member (140A) located at the first point so that the first chain part (141) and the second chain part (142) can bend easily, for example, so that the bending angle can be in the range of 5 degrees or more.

[0048] In this way, by varying the diameter range of the protruding member (140A) to limit or allow the bending angle of the variable part (140), the roller chain of the variable part (140) may be made to stand upright or allowed to bend, but this is merely an example.

[0049] That is, in the opposite direction of the protruding member (140A), the bending limitation caused by the protruding member (140A) may not occur, so the bending angle in the direction of the protruding member (140A) may be formed in a range of 5 degrees or less in all areas.

[0050] As shown in FIG. 7, the guide pin portion (140B) can guide movement along the guide hole (132A, 132B) while preventing the variable portion (140) from detaching from the body portion (130) (specifically, the base member (131A, 131B)).

[0051] For example, the guide pin portion (140B) can protrude from the first chain portion (141) and the second chain portion (142) toward the body portion (130) (specifically, the base member (131A, 131B)) and penetrate into the guide hole (132A, 132B). Additionally, the guide pin portion (140B) has a structure in which the end protrudes / extends to prevent detachment, so that it can be maintained in a state of being caught in the guide hole (132A, 132B).

[0052] Here, the guide holes (132A, 132B) can form a concave hole or groove structure facing forward or backward with respect to FIG. 6, so that the guide pin part (140B) can move freely in a direction horizontal to the base member (131A, 131B). Accordingly, the guide pin part (140B) moving along the guide holes (132A, 132B) is prevented from detaching from the base member (131A, 131B), while allowing the variable part (140) to move away from the body part (130) in an upright state (vertical direction). Accordingly, the variable part (140) can protrude higher than the top height of the body part (130).

[0053] The driving unit (150) may be provided in the body unit (130) and may transmit rotational force to the variable unit (140) to adjust the height of the variable unit (140). For example, the driving unit (150) may include a sprocket (151A, 151B), a motor (152), and a bevel gear unit (153).

[0054] Sprockets (151A, 151B) are configured to move the variable part (140) and can be engaged with the variable part (140). For example, referring to FIG. 3, the sprockets (151A, 151B) may include a first sprocket (151A) that is provided at a second point, which is the intersection point of the first chain part (141) and the second chain part (142), and engages with the first chain part (141), and a second sprocket (151B) that forms a concentric axis with the first sprocket (151A) and engages with the second chain part (142).

[0055] The motor (152) is configured to generate power and can transmit rotational force to the variable part (140) by being connected to the sprocket (151A, 151B) and the bevel gear part (153). The motor (152) can transmit rotational force through the bevel gear part (153) so as to drive the first chain part (141) and the second chain part (142), which are composed of two roller chains, with a single power source.

[0056] The bevel gear section (153) can rotate the first chain section (141) in a first direction (e.g., clockwise) on one side and the second chain section (142) in a second direction (e.g., counterclockwise) opposite to the first direction, so as to vary the height of the variable section (140) using a single power source (motor (152)).

[0057] For example, the bevel gear portion (153) may include a first gear member (153A), a second gear member (153B), and a third gear member (153C).

[0058] The first gear member (153A) can be connected to the shaft of the motor (152) and, for example, can be arranged to mesh with the second gear member (153B) and the third gear member (153C) between the first sprocket (151A) and the second sprocket (151B).

[0059] The second gear member (153B) is connected to the first sprocket (151A) and can transmit rotational force to the first sprocket (151A). The second gear member (153B) is provided on one side of the first gear member (153A) and can be rotated in a first direction by the first gear member (153A).

[0060] The third gear member (153C) is connected to the second sprocket (151B) and can transmit rotational force to the second sprocket (151B). The third gear member (153C) is provided on the other side of the first gear member (153A) and can be rotated in a second direction by the first gear member (153A), so that it can be rotated in the opposite direction to the second gear member (153B).

[0061] Below, the operation relationship of the height-variable inspection device (100) will be explained.

[0062] First, referring to FIG. 1, the support member (110) may be provided in a position that is in contact with or close to the body member (130). At this time, the height of the support member (110) may be at a minimum height. And so that the height of the support member (110) may be at a minimum height, the variable member (140) may be in a state where the length protruding from the body member (130) is at a minimum.

[0063] For example, the first chain section (141) and the second chain section (142) of the variable section (140) may each have one end connected to the support section (110) and the other end moved to the end point of the guide hole (132A, 132B). Here, the guide hole (132A, 132B) may have a straight line shape in the downward direction from the first point (indicated as 'SP1' in FIG. 2) and the third point (indicated as 'SP3' in FIG. 2), as shown in FIG. 6, but may have a curved structure at the second point where the first chain section (141) and the second chain section (142) intersect, so that they intersect each other in the forward and backward directions at the second point. This is to use a single motor (152) through the sprocket (151A, 151B) and the bevel gear section (153).

[0064] That is, the first sprocket (151A) and the second sprocket (151B) forming a concentric axis can receive rotational force from the motor (152) from each of the second gear member (153B) and the third gear member (153C) provided at both ends of the first gear member (153A) of the bevel gear section (153).

[0065] And as shown in FIG. 3, when the second gear member (153B) and the third gear member (153C) are rotated in opposite directions by the first gear member (153A), the first chain member (141) and the second chain member (142) can be moved closer to or further away from each other at the end points of the guide holes (132A, 132B).

[0066] For example, as shown in FIGS. 1 and 3, a first sprocket (151A) connected to a second gear member (153B) by an axis can be rotated in the same direction as the second gear member (153B). Then, the first chain portion (141) engaged with the first sprocket (151A) can be rolled clockwise and moved to the end point of the guide hole (132A).

[0067] Along with this, the second sprocket (151B), which is connected to the third gear member (153C) by an axis, can be rotated in the same second direction as the third gear member (153C). Then, the second chain part (142) engaged with the second sprocket (151B) can be rolled counterclockwise and moved to the end point of the guide hole (132B). In this way, the first chain part (141) and the second chain part (142) can come closer to each other at the end points of the guide holes (132A, 132B), so that the height of one end of the first chain part (141) and the second chain part (142) can be minimized.

[0068] In the opposite direction, the height of one end of the first chain section (141) and the second chain section (142) can be increased.

[0069] For example, as shown in FIG. 2, the first chain section (141) and the second chain section (142) can be operated in a direction away from each other from the end points of the guide balls (132A, 132B), which can be accomplished by rotating the motor (152) in the opposite direction to the direction of moving closer to each other from the end points of the guide balls (132A, 132B).

[0070] At this time, the first sprocket (151A) connected to the second gear member (153B) by an axis and the second sprocket (151B) connected to the third gear member (153C) by an axis may be formed in a direction opposite to the direction described with reference to FIG. 1, and since the description thereof is redundant, a detailed description thereof will be omitted.

[0071] And as shown in FIG. 2, the operation of the variable part (140) that protrudes from the body part (130) and stands upright on the upper part of the body part (130) without falling over is explained as follows.

[0072] As previously mentioned, the angle of bending of multiple roller links (1401) adjacent in the vertical direction can be limited due to interference from adjacent protruding members (140A). For example, the first chain section (141) and the second chain section (142) have protruding members (140A) positioned in opposite directions, so that the first chain section (141) and the second chain section (142) can be prevented from tipping over each other, and can maintain an upright position even when protruding from the body section (130).

[0073] Specifically, as shown in FIG. 10, the first chain part (141) may be restricted from bending in the direction in which the protruding member (140A) is positioned by the protruding member (140A) (bending restricted in the direction indicated by 'D1'). At this time, the direction in which the bending of the first chain part (141) is restricted may be the direction in which the second chain part (142) may fall over ('D1'), but since one end of the variable part (140) is restrained by the support part (110) and the bending is restricted by the first chain part (141), the second chain part (142) may also form an upright shape.

[0074] In addition, referring to FIG. 11, the second chain part (142) may also be restricted from bending in the same or similar way as the first chain part (141) is restricted from bending in the direction where the protruding member (140A) is located (bending restricted in the direction indicated by 'D2'). At this time, the direction in which the second chain part (142) is restricted from bending may be the direction ('D2') in which the first chain part (141) may fall over, but the first chain part (141) may also be able to form an upright shape by restricting the bending by the second chain part (142).

[0075] Meanwhile, although the present embodiment describes the variable part (140) as including a protruding member (140A) whose diameter may vary depending on the position, other embodiments are possible in which the protruding member (140A) has the same diameter regardless of the position.

[0076] In the following description, it will be explained that the diameters of the protruding members (140A) are all the same and that a support member (160) is provided. However, it is obvious that another embodiment is possible by combining the first embodiment with the second embodiment described later or known technology. Furthermore, redundant descriptions of identical components that perform the same function as the first embodiment will be omitted in the description of the second embodiment.

[0077] FIG. 12 is a front view of a height-variable inspection device according to a second embodiment of the present invention, and FIG. 13 is a drawing showing a state in which the position of the support member is varied in the height-variable inspection device of FIG. 12. With reference to FIG. 12 and FIG. 13, the differences from those described using FIG. 1 to FIG. 11 will be explained in detail.

[0078] Referring to FIGS. 12 and 13, a height-variable inspection device (100) according to an embodiment of the present invention may include a support part (110), a body part (130), a variable part (140), and a driving part (150), and is similar to the first embodiment.

[0079] However, compared to the first embodiment, this embodiment may further include a support member (160), and the body member (130) may further have an insertion hole (133) formed therein.

[0080] First, the insertion hole (133) of the body part (130) is configured to accommodate the support part (160), and a concave space may be formed from the upper to the lower direction of the body part (130). For example, the insertion hole (133) may have a groove structure, and the support part (160) may be supported on the bottom surface of the groove. However, it may have a structure in which a part of the bottom surface is penetrated so that the variable part (140) can protrude from the body part (130).

[0081] As another example, the insertion hole (133) may have a hole structure that penetrates in the vertical direction, and various variations are possible, such as a protruding structure for supporting the support member (160) being provided around the circumference of the inner surface, or the support member (160) being fixed by a bonding method such as bolting or adhesive.

[0082] The support member (160) is connected to the support member (110) so that, based on FIG. 1, the support member (110) moves only in the up-and-down direction and is not eccentric in either the left or right direction, that is, so that the variable member (140) does not tip over, and is configured to surround the circumference of the variable member (140). For example, the support member (160) may form a telescopic structure in which a plurality of cylindrical structures (which may be polyhedra) formed in multiple stages are combined. The upper end of this support member (160) is connected to the support member (110) and the lower end is connected to the body member (130), so that the support member (110) can be guided on the body member (130) in the longitudinal direction in which the support member (160) extends.

[0083] This support member (160) is provided to surround the circumference of at least one of the first chain member (141) and the second chain member (142) of the variable member (140), so as to support the first chain member (141) and / or the second chain member (142) so as not to become disorganized.

[0084] As shown in FIG. 12, when the height of the base portion (110) reaches a minimum height, the variable portion (140) can be in a state where the length protruding from the body portion (130) is minimized. At this time, the telescopic structure of the support portion (160) overlaps with each other, so that the height of the support portion (160) can be minimized.

[0085] On the other hand, as shown in FIG. 13, as the variable part (140) gradually protrudes from the body part (130) and the height of the support part (110) gradually increases, the telescopic structure of the support part (160) can be unfolded in multiple stages and the height of the support part (160) can gradually increase.

[0086] This support member (160) is connected to the base member (110) and its height can be set according to the variable height of the base member (110). The height of the base member (110) can be adjusted by the height at which the variable member (140) protrudes as it is operated by the motor (152). At this time, the support member (160) can be folded or unfolded in the up and down direction so that its upper end can only move in the up and down direction, and since it forms a shape that surrounds the perimeter of the variable member (140), it prevents the base member (110) from becoming eccentric and can fix the position of the base member (110) in the left and right directions.

[0087] As such, the height-variable inspection device (100) according to the present embodiment can reduce working time by eliminating the need for the worker to move directly, and can improve work efficiency by making inspection easier as the height of the inspection unit (120) can be varied to match the height of the object to be inspected.

[0088] In addition, since the first chain part (141) and the second chain part (142) are not provided on the same plane, the first chain part (141) and the second chain part (142) can overlap each other in the front and rear directions on the body part (130), so there is no need for the cross-sectional area of ​​the base member (131A, 131B) of the body part (130) where the first chain part (141) and the second chain part (142) are provided to become excessively large, so the body part (130) can be implemented in a compact size.

[0089] In addition, the height can be adjusted by a single motor (152) in conjunction with the operation of the bevel gear part (153) of the drive part (150), so the upper and lower height of the variable part (140) can be adjusted by a single power source (motor (152)). Therefore, there is no need to provide a number of motors corresponding to the number of roller chains, so the number of motors (152) can be reduced, and power consumption can be reduced as the number of motors (152) is reduced.

[0090] Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention may be implemented in other specific forms without changing its technical concept or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0091] 100: Height-variable inspection device 110: Support base 120: Inspection unit 130: Body unit 140: Variable part 150: Driving part 160: Support

Claims

Claim 1 A support member having an inspection portion facing an object to be inspected; a body member having a lower portion of the support member; a variable member having a portion having a portion having a portion having a protruding length that varies the height of the support member; and a driving member having a portion A height-variable inspection device comprising a motor that forms the power source and transmits rotational force to the bevel gear portion. Claim 2 delete Claim 3 In claim 1, the driving unit further comprises a first sprocket provided at the second point and engaged with the first chain unit, and a second sprocket formed concentrically with the first sprocket and engaged with the second chain unit, and the bevel gear unit comprises a first gear member connected to the motor, a second gear member provided on one side of the first gear member and connected to the first sprocket, and a second gear member provided on the other side of the first gear member and connected to the second sprocket, a height-variable inspection device. Claim 4 A height-variable inspection device according to claim 1, wherein the body portion comprises a base member that is arranged horizontally with respect to the variable portion and has a guide hole formed therein that forms a concave space along the movement path of the variable portion, and the first chain portion and the second chain portion comprise a guide pin portion that is arranged to penetrate the guide hole so as to move along the guide hole. Claim 5 A height-variable inspection device according to claim 1, wherein the first chain part and the second chain part are provided with a protruding member that protrudes in opposite directions from the first chain part and the second chain part at the first point.

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