KR102597247B1 - Inspecting apparatus for connecting status of connector - Google Patents

Abstract

The present invention relates to a device for checking the fastening state of a connection member, including a mounting part mounted on a connection member fastened to a connected body, a sensor moving part movably installed on the mounting part and disposed facing the connected body, and a sensor moving part. It is installed in and is characterized by including a distance measuring unit that measures the distance to the connected object.

Description

Device for checking the connection status of connection members {INSPECTING APPARATUS FOR CONNECTING STATUS OF CONNECTOR}

The present invention relates to a device for checking the fastening state of a connecting member, and more specifically, to a device for checking the fastening state of a connecting member that can check the fastening state of the connecting member.

Generally, bushings are formed in underground distribution switches for connection with cables, and the cables are electrically connected to the bushings using elbow connectors, insulating plugs, and stud bolts. A female thread is formed at the end of the bushing into which one end of the stud bolt can be screwed, a female thread is formed at the end of the insulating plug facing the bushing, and both ends of the stud bolt are connected to the female thread of the bushing and the female thread of the insulating plug. Each is screwed together.

A tool connection portion that can engage a tool such as a torque wrench is formed at the end of the insulating plug. The tool connection part has a shape corresponding to the hexagonal head of the bolt, and while a tool such as a torque wrench is engaged with this tool connection part, a rotating force is applied to the insulating plug using the tool.

Inside the elbow connection material, a first accommodating part into which the end of the bushing is inserted, a second accommodating part into which the end of the insulating plug can be inserted, and a third accommodating part into which the cable adapter can be accommodated are formed to communicate with each other. The first accommodating part and the second accommodating part are arranged symmetrically in a straight line with respect to the third accommodating part, and have a shape whose width expands toward the open end.

Screw one end of the stud bolt to the bushing, connect the cable to the elbow connector using a cable adapter, position the elbow connector so that the bushing is inserted into the first receiver, and insert the insulating plug into the second receiver. By applying a rotating force to the insulating plug, the insulating plug is screwed to the other end of the stud bolt and at the same time, the elbow connection material is bound between the bushing and the insulating plug.

At this time, the bushing and the insulating plug are pressure-welded to the inner surface of the elbow connection material without any play, and the connection terminal of the cable inserted between the first and second acceptance parts through the third acceptance part of the elbow connection material is connected to the bushing through a stud bolt. and is electrically connected, and the elbow connection material protects the connection terminals of the bushing, insulating plug, stud bolt, and cable having this electrical connection structure from the external environment.

If the thread of the stud bolt is damaged or the connection between the stud bolt, bushing, and insulating plug is not in a straight line and is misaligned, a gap occurs inside the elbow connection material, and in this way, the electrical connection between the bushing and the cable becomes unstable. Failure may occur due to the ground, direct causes such as discharge, heat energy, etc., or indirect causes may occur due to the inflow of fault current from other equipment.

However, since the stud bolt is located inside the elbow connection material, it is impossible to visually check the connection status with the bushing and the insulating plug, and it is difficult to determine whether the construction of the connection members including the stud bolt, elbow connection material, and insulating plug was done properly or defectively. It is impossible to figure out. Therefore, there is a need to improve this.

The background technology of the present invention is disclosed in Korean Patent Publication No. 10-2017-0034541 (published on March 29, 2017, title of the invention: Cable connector capable of confirming fastening state).

The purpose of the present invention is to provide a device for checking the fastening state of a connecting member that can easily check the fastening state of the connecting member in the field.

A device for checking the fastening state of a connecting member according to the present invention includes a mounting portion mounted on a connecting member fastened to a connected body; a sensor moving unit movably installed on the mounting unit and disposed to face the connected object; and a distance measuring unit installed on the sensor moving unit and measuring the distance to the connected object.

The connection member includes a connection body connected to the connected body; and a fastening coupling member disposed to be spaced apart from the connected body and coupling the connection main body to the connected body by screwing, wherein the mounting part is detachably mounted on the fastening coupling member. Do it as

The mounting portion includes a mounting body portion in which an insertion groove is formed into which the end of the connecting member is inserted; and a pressure-welding fixing portion that penetrates the mounting body portion, enters the insertion groove portion, and is pressure-welded to the connection member.

The mounting part may further include a rotational stabilizing part that protrudes from the inner surface of the insertion groove and has a cross-sectional shape whose width decreases toward the radial end.

The sensor moving part includes a rotating part rotatably coupled to the mounting part; and a moving part that is slidably installed on the rotating part and whose position is adjusted based on the rotating part.

The rotating portion includes a rotating body portion rotatably coupled to the mounting portion; and a rail connection part formed on the rotating body part and movably supporting the rail part of the moving part.

The rotating body part is rotatably coupled to the mounting part, and a fixture in which a first rail connection part connected to one side of the rail part among the rail connection parts is formed; A moving body coupled to a side of the fixture and having a second rail connection part connected to the other side of the rail part among the rail connection parts; and a binding member that binds the mobile body to the fixed body and adjusts the distance between the first rail connection part and the second rail connection part.

The fixed body includes a coupling groove formed on one side in contact with the mobile body, and the mobile body includes a coupling jaw part formed to protrude toward the fixed body and engaged with the coupling groove. .

The moving part includes a moving body part in which the distance measuring part is installed; and a rail portion formed on the movable body portion and slidably coupled to the rotating portion.

The distance measuring unit includes a distance measuring sensor installed on the sensor moving unit and measuring the distance to the connected object; and a battery mounted on the sensor moving unit and supplying power to the distance measurement sensor. and a display unit that displays information about the distance measured by the distance measurement sensor.

The device for checking the fastening state of a connecting member according to the present invention measures the distance to the connected object using a distance measuring unit while the mounting part is mounted on the connecting member, making it easy to check the screw fastening state between the connected object and the connecting member in the field. You can check it clearly, and from this, you can check whether it is defective construction or normal construction, and the degree of non-fastening.

In addition, the present invention allows the position or direction of the sensor moving part to be varied in various ways based on the mounting part, so that the sensor moving part is oriented in a length and direction that can avoid interference with the connected object and other materials around the connection member. Inspection of construction status can be done easily and reliably while adjusting the position.

Additionally, according to the present invention, the connecting member can be screwed to the connected body by mounting the mounting portion on the connecting member and applying a rotational manipulation force to the sensor moving portion while holding the sensor moving portion. In other words, the device for checking the fastening state of a connecting member according to the present invention not only functions as an inspection device for checking the fastening state of a connecting member, but can also be used as a tool for screwing the connecting member when necessary.

Figure 1 is a perspective view schematically showing a device for checking the fastening state of a connection member according to an embodiment of the present invention.
Figure 2 is an exploded perspective view of the main part schematically showing a device for checking the fastening state of a connection member according to an embodiment of the present invention.
Figure 3 is a front view schematically showing a device for checking the fastening state of a connection member according to an embodiment of the present invention.
Figure 4 is a side view schematically showing a device for checking the fastening state of a connection member according to an embodiment of the present invention.
Figure 5 is an assembly diagram showing the installation structure of a device for checking the fastening state of a connection member according to an embodiment of the present invention.
Figure 6 is a state diagram illustrating a state in which the distance to a connected object is measured using a device for checking the fastening state of a connecting member according to an embodiment of the present invention in a state in which the connecting member is poorly constructed.
Figure 7 is a use state diagram illustrating a state in which the distance to a connected object is measured using a connection state inspection device of a connection member according to an embodiment of the present invention in a state in which the connection member is normally constructed.

Hereinafter, an embodiment of a device for checking the fastening state of a connecting member according to the present invention will be described with reference to the attached drawings. In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator. Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a perspective view schematically showing a device for checking the fastening state of a connecting member according to an embodiment of the present invention, and Figure 2 is a main part schematically showing a device for checking the fastening state of a connecting member according to an embodiment of the present invention. It is an exploded perspective view, and Figure 3 is a front view schematically showing a device for checking the fastening state of a connecting member according to an embodiment of the present invention, and Figure 4 is a schematic diagram showing a device for checking the fastening state of a connecting member according to an embodiment of the present invention. This is a side view shown as .

Referring to FIG. 1, the device 1 for checking the fastening state of the connection member 3 according to an embodiment of the present invention includes a mounting part 10, a sensor moving part 20, and a distance measuring part 30.

The mounting portion 10 is detachably mounted on the end of the connecting member 3 (see FIGS. 5 to 7, explained below) fastened to the connected body 2. When the end of the connecting member 3 has a shape corresponding to the hexagonal head of the bolt, the mounting part 10 has a structure that can be coupled and fixed to the hexagonal head of the bolt and can be coupled to the end of the connecting member 3.

The sensor moving unit 20 is installed on the mounting unit 10 to enable at least one movement of rotation or linear movement, and is disposed facing the connected object 2 while installed on the mounting unit 10. The sensor moving part 20 has an extended length than the mounting part 10, and is installed in the mounting part 10 so that its longitudinal end faces the connected object 2 rather than contacting or facing the mounting part 10. do.

The distance measuring unit 30 is a device unit that measures the distance from the sensor moving unit 20 to the connected object 2, and includes a distance measuring sensor 31 that measures the straight-line distance to the connected object 2. . The distance measuring sensor 31 is installed at a longitudinal end of the sensor moving part 20 that does not interfere with the mounting part 10, and measures the straight-line distance to the connected object 2.

When the connection member 3 is coupled to the connected body 2 by screwing, the distance between the end of the connecting member 3 and the connected body 2 varies depending on the degree of screwing, and the mounting part ( 10) is mounted on the connecting member (3), and the distance to the connected object (2) is measured using the distance measuring unit (30), thereby determining the screw fastening state between the connected object (2) and the connecting member (3). You can check.

Figure 5 is an assembly diagram showing the installation structure of a device for checking the fastening state of a connecting member according to an embodiment of the present invention, and Figure 6 is an assembly diagram showing a connection member in a poorly constructed state according to an embodiment of the present invention. It is a usage state diagram shown to explain the state of measuring the distance to the connected object using a device for checking the fastening state of the connecting member, and Figure 7 shows the connecting member according to an embodiment of the present invention in a state in which the connecting member is normally constructed. This is a state of use diagram illustrating the state of measuring the distance to a connected object using a fastening state inspection device.

In Figures 5 to 7, the construction state can be checked using the fastening state inspection device 1 of the connecting member 3 according to an embodiment of the present invention, that is, applied to the connected body 2 and the connecting member 3. Possible underground distribution switches and elbow connections are shown.

The underground distribution switch, which is the connected object (2), is provided with a bushing (2a) for connection with the cable. At the end of the bushing (2a), a female thread portion is formed to which one end of the screw fastening means (6) can be screwed. The connection member 3 includes a connection body 4 connected to the connected body 2, and a fastening coupling member 5 that fastens the connection body 4 to the connected body 2 by screw fastening means 6. ) includes.

Elbow connection materials, insulating plugs, and stud bolts can be used as the connection body (4), the fastening coupling member (5), and the screw fastening means (6), respectively. A female thread is formed at the end of the insulating plug facing the bushing (2a), and both ends of the stud bolt are screwed to the female thread of the bushing (2a) and the female thread of the insulating plug, respectively.

A tool connection portion 5a is formed at the end of the insulating plug to engage a tool such as a torque wrench. The tool connection portion 5a may have a shape corresponding to the hexagonal head of the bolt, and while a tool such as a torque wrench is engaged with the tool connection portion 5a, rotational force can be easily applied to the insulating plug using the tool. . The mounting part 10 according to an embodiment of the present invention has a structure that can be mounted on the tool connection part 5a.

Inside the elbow connection material, there is a first accommodating part into which the end of the bushing (2a) is inserted, a second accommodating part into which the end of the insulating plug can be inserted, and a third accommodating part into which the cable adapter 7 can be accommodated. It is formed in a continuous manner. The first accommodating part and the second accommodating part are arranged symmetrically in a straight line with respect to the third accommodating part, and have a shape whose width expands toward the open end.

After screwing one end of the stud bolt to the bushing (2a) and connecting the cable to the elbow connection material using the cable adapter (7), position the elbow connection material so that the bushing (2a) is inserted into the first receiving portion, By inserting the insulating plug into the second receiving portion and applying a rotational force to the insulating plug, the insulating plug is screwed to the other end of the stud bolt and at the same time, the elbow connection material is bound between the bushing 2a and the insulating plug.

At this time, the bushing (2a) and the insulating plug are pressure-contacted without clearance on the inner surface of the elbow connecting material, and the connection terminal of the cable inserted between the first and second receiving parts through the third receiving part of the elbow connecting material is connected through a stud bolt. It is electrically connected to the bushing (2a), and the elbow connection material protects the connection terminals of the bushing (2a), insulating plug, stud bolt, and cable having this electrical connection structure from the external environment.

According to the above assembly structure, the switch for underground distribution and the insulating plug are arranged to face each other with stud bolts in between, and the insulating plug and the insulating plug for underground distribution are connected according to the screw fastening state between the stud bolt and the bushing (2a) and the insulating plug. The distance of the opening and closing period varies. That is, the fastening member 5 corresponding to the insulating plug is arranged to be spaced apart from the underground distribution switch corresponding to the connected body 2 with the screw fastening means 6 corresponding to the stud bolt in between, and is screwed. The distance from the connected object (2) varies depending on the degree of screw fastening to the means (6).

If the thread of the stud bolt is damaged or the connection between the stud bolt, bushing (2a), and insulating plug is not in a straight line and is misaligned, a gap occurs inside the elbow connection material, which causes electrical damage between the bushing (2a) and the cable. This means that the connection is unstable. In this way, in a state in which the connection member 3 is poorly constructed on the connected body 2, or in a state in which the stud bolt or insulating plug is loosened even if it is properly constructed, the connected body 2 and the connecting member 3 Since the distance between the two is expanded compared to the normal construction state, it is possible to check whether the construction is defective or normal by measuring the distance between the connected object 2 and the connecting member 3.

According to an embodiment of the present invention, the distance to the connected object 2 is measured using the distance measuring unit 30 while the mounting unit 10 is mounted on the tool connection unit 5a of the connection member 3. , it is possible to check the state of the screw fastening between the connected body 2 and the connecting member 3, that is, whether it is defective construction or normal construction, and the degree of defective construction.

Referring to Figure 2, the mounting part 10 according to an embodiment of the present invention includes a mounting body part 11, a pressure fixing part 13, and a rotation stabilizing part 14.

The mounting body portion 11 is a device portion connected to the end of the connecting member 3, and an insertion groove 12 is formed into which the end of the connecting member 3 is inserted. The pressure-welded fixing part 13 penetrates the mounting body part 11, enters the insertion groove part 12, and is pressure-welded to the connection member 3. A bolt member can be used as the pressure welding fixing part (13). The mounting body portion 11 is formed with a through-hole portion having a female thread portion into which the pressure-welding fixing portion 13 is screwed.

The inner end of the pressure-welding fixing part 13 penetrates the mounting body 11 as described above and enters the insertion groove 12, and the outer side of the pressure-welding fixing part 13 is located outside the mounting main body 11. At the end, a handle portion that can be held by hand is formed to protrude in the radial direction. The inspector can easily apply a rotational force to the pressure fixing part 13 using the handle without using a separate tool.

The rotation stabilizer 14 is a device part to prevent the mounting part 10 from randomly rotating or moving around the connecting member 3 when the mounting part 10 is mounted on the connecting member 3, and is an insertion groove ( 12) is formed to protrude on the inner surface. The insertion groove 12 has a circular cross-sectional shape, and a plurality of rotational stabilizers 14 protrude along the edge of the insertion groove 12 to form a cross-sectional shape corresponding to the tool connection portion 5a of the connection member 3. It is formed like this.

When the tool connecting portion 5a of the connecting member 3 has a hexagonal head shape, the rotational stabilizer 14 protrudes inward in six directions so as to be in contact with the side surfaces of the hexagonal head, respectively. The protruding end of the rotation stabilizing part 14 contacts the side surface of the tool connecting part 5a in different directions, thereby fundamentally preventing idle rotation of the mounting part 10 with respect to the connecting member 3.

In addition, the rotational stabilizer 14 has a cross-sectional shape whose width decreases toward the radial end, so that it can clearly contact the side surface of the tool connection portion 5a, and thus the mounting portion 10 is resistant to any external force. It is possible to prevent the sensor from being rotated or tilted due to the uneven weight of the sensor moving unit 20 and the distance measuring unit 30. In addition, the rotational stabilizer 14 has a cross-sectional shape whose width decreases toward the radial end, making it easy to insert the tool connection portion 5a into the insertion groove 12 while minimizing interference with the rotational stabilizer 14. It can be inserted easily.

Referring to Figures 1 to 3, the sensor moving unit 20 according to an embodiment of the present invention includes a rotating part 21 and a moving part 27.

The rotating part 21 is rotatably coupled to the mounting part 10. The rotating portion 21 is axially coupled to be rotatable about a point corresponding to the central portion of the insertion groove portion 12. The mounting body portion 11 of the mounting portion 10 has an overall cylindrical shape, and the rotating portion 21 also has an overall cylindrical shape and is arranged to be stacked. Referring to Figure 1, the rotating part 21 according to an embodiment of the present invention includes a rotating body part 22 and a rail connecting part 26.

The rotating body portion 22 is rotatably coupled to the mounting portion 10 in a fixed position. The rail connection part 26 is a device part that supports the rail part 29 of the moving part 27 so that it can move in a straight path, and is formed integrally with the rotating body part 22. Referring to Figures 1 to 3, the rotating body portion 22 according to an embodiment of the present invention includes a fixed body 23, a moving body 24, and a binding member 25.

The fixed body 23 is rotatably coupled to the mounting part 10, and the moving body 24 is coupled to the side of the fixed body 23. In a state where the moving body 24 is coupled to the side of the fixed body 23, the fixed body 23 and the moving body 24 together form an overall cylindrical shape. A first rail connection portion 26a connected to one side of the rail portion 29 among the rail connection portions 26 is formed on the fixture 23. A second rail connecting portion 26b is formed on the moving body 24, which is connected to the other side of the rail portion 29 among the rail connecting portions 26.

The rail portion 29 has a structure in which a first rail portion (29a) and a second rail portion (29b) extend side by side in one direction, and the first rail connecting portion (26a) and the second rail connecting portion (26b) are connected to the first rail portion (29a) and the second rail portion (29b). They are in contact with the rail portion 29a and the second rail portion 29b, respectively, and are disposed to face each other with the first rail portion 29a and the second rail portion 29b in between. A coupling groove portion 23a is formed on one side of the fixed body 23 that is in contact with the mobile body 24, and a coupling jaw portion 24a engaged with the coupling groove portion 23a is formed to protrude on the mobile body 24.

It is possible to restrain the axial movement of the mobile body 24 with respect to the fixed body 23 while the coupling jaw 24a is inserted into the coupling groove 23a, and in this way, the movement of the mobile body 24 with respect to the fixed body 23 can be restricted. In a state in which the movement is restricted, the end of the binding member 25 that penetrates the moving body 24 can be easily moved into the correct position on the fixed body 23. A passing hole through which the binding member 25 can penetrate is formed on the moving body 24, and a fastening hole through which the end of the binding member 25 penetrating the moving body 24 can be screwed is formed on the fixed body 23. is formed

The binding member 25 is a device part that binds the mobile body 24 to the fixed body 23 and adjusts the distance between the first rail connection part 26a and the second rail connection part 26b, and one end is attached to the mobile body 24. It passes through the formed through hole and is screwed into the fastening hole formed in the fixture 23. At the other end of the binding member 25, which is located outside the mobile body 24, a pressure-welding handle is formed that is press-contacted with the outer surface of the mobile body 24.

A rotational manipulation force can be easily applied to the binding member 25 using the pressure welding handle, and the first rail connection part 26a and the second rail connection part 26b are arranged to face each other with the rail part 29 in between. In this case, the rail portion 29 can be pressed and fixed between the moving body 24 and the stationary body 23 by continuously applying the rotational manipulation force until the pressure contact handle portion is pressed into contact with the moving body 24.

The extension direction of the sensor moving part 20 can be varied in various ways based on the mounting part 10 using the rotating part 21, thereby causing interference with other materials around the connected object 2 and the connecting member 3. Inspection of the construction status can be performed easily and reliably while adjusting the extension direction of the sensor moving part 20 in a direction that can avoid.

On the other hand, if a rotation restraining means (not shown) is additionally provided to restrict the rotation of the rotating part 21, the mounting part 10 is mounted on the connecting member 3, and the moving part 27 is held while the moving part 27 is held. The connecting member 3 can also be screwed to the connected body 2 by applying a rotational force to (27). That is, the device for checking the fastening state of the connecting member (3) according to the present invention not only functions as an inspection device for checking the fastening state of the connecting member (3), but also functions as a device for screwing the connecting member (3) when necessary. It can also be used as a tool.

If the rotation restraining means can restrain the rotation of the rotating part 21 with respect to the mounting part 10, it can be used at the rotation center of the rotating part 21 through a pin member or bolt member that penetrates the rotating part 21 and is coupled to the mounting part 10. It is not limited to a specific structure or shape, including a fixing member whose both ends are coupled to the rotating part 21 and the mounting part 10 in an eccentric position, and other known technologies.

The moving unit 27 is equipped with the distance measuring unit 30 and is installed to be slidably movable on the rotating unit 21. As the moving part 27 moves linearly in the radial direction of the rotating part 21, its relative position with respect to the rotating part 21 is adjusted. Referring to Figures 1 to 4, the moving part 27 according to an embodiment of the present invention includes a moving body part 28 and a rail part 29.

The mobile body unit 28 is a device unit on which the distance measuring unit 30 is installed, and can be held by hand, but has a longer length than the mounting unit 10 and the rotating unit 21. The movable body unit 28 according to an embodiment of the present invention has a rectangular parallelepiped shape. The rail portion 29 is formed on the movable body portion 28 and is slidably coupled to the rotating portion 21 as shown in FIG. 4 .

The rail portion 29 has a structure in which a first rail portion (29a) and a second rail portion (29b) extend in parallel in one direction, and a first rail connecting portion (26a) and a second rail connecting portion formed on the rotating portion (21). Each is in sliding contact with (26b). As shown in FIG. 4, by moving the rail unit 29, the position of the distance measuring sensor 31 installed at the end of the mobile main unit 28 can be varied, and the mobile main body centered on the rotating unit 21 The rotational movement range of the unit 28 can be expanded and contracted.

The distance measuring sensor 31 of the distance measuring unit 30 is installed at one end of the moving main unit 28, and the moving unit 27 is separated from the rotating unit 21 at the other end of the moving main unit 28. A stopper 28a is formed to prevent. The stopper 28a is formed to protrude toward the rotating part 21, and a stopper locking portion 22a that is caught by the stopper 28a is formed on one side of the outer surface of the rotating part 21 facing the stopper 28a. The stopper 28a and the stopper locking part 22a can prevent the moving part 27 from being separated from the rotating part 21 during the sliding movement.

Referring to FIGS. 1, 2, and 5, the distance measuring unit 30 according to an embodiment of the present invention includes a distance measuring sensor 31, a battery 32, and a display unit 33.

The distance measuring sensor 31 is installed facing the connected object 2 at the end of the sensor moving part 20 that does not interfere with the mounting part 10, and measures the distance to the connected object 2. As the distance measurement sensor 31, a laser sensor that measures the distance in a non-contact manner using laser light (L) can be applied. The battery 32 is a device part that supplies power to the distance measurement sensor 31, and is mounted inside the sensor moving part 20, and turns on the power supply to the distance measurement sensor 31 by operating the power switch 34. Can be adjusted off.

When the connection member 3 is normally constructed, the actual measurement distance with the connected object 2 measured by the distance measurement sensor 31 becomes the normal construction distance d2 shown in FIG. 7. If the connection member (3) is constructed poorly, the actual measured distance with the connected object (2) measured by the distance measuring sensor (31) is the defective construction distance (d1), which is extended from the normal construction distance (d2) as shown in FIG. ) appears as The degree of non-fastening of the connection member 3 can be confirmed from the distance difference d3 between the defective construction distance d1 and the normal construction distance d2.

The display unit 33 is a device unit that displays information about the distance measured by the distance measurement sensor 31, and is a top surface of the sensor moving unit 20 that does not face the connected object 2 so that the operator can easily check it with the naked eye. placed in the department. The display unit 33 can display the actual measurement distance with the connected object 2 measured by the mounted measurement sensor 31 in numerical values, etc., and displays the difference between the normal construction distance d2 and the actual measurement distance during normal construction. The distance difference (d3) can also be displayed.

According to the device (1) for checking the fastening state of the connection member (3) according to the present invention having the above configuration, the distance measurement unit (30) is used to measure By measuring the distance to the connecting body (2), the state of screw fastening between the connected body (2) and the connecting member (3) can be confirmed, and from this, whether it is defective construction or normal construction, and the degree of non-fastening can be confirmed. You can.

In addition, according to the present invention, the position or direction of the sensor moving part 20 can be varied in various ways based on the mounting part 10, and other raw materials around the connected body 2 and the connecting member 3 Inspection of the construction status can be performed easily and reliably while adjusting the position of the sensor moving part 20 to a length and direction that can avoid interference.

In addition, according to the present invention, the mounting part 10 is mounted on the connection member, and the connection member 3 is connected to the connected member ( 2) can also be screwed. That is, the device for checking the fastening state of the connecting member (3) according to the present invention not only functions as an inspection device for checking the fastening state of the connecting member (3), but also functions as a device for screwing the connecting member (3) when necessary. It can also be used as a tool.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those skilled in the art will recognize that various modifications and other equivalent embodiments are possible therefrom. You will understand. Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

1: Fastening status inspection device 2: Connected object
2a: bushing 3: connection member
4: Connection body 5: Fastening coupling member
5a: Tool connection part 6: Screw fastening means
7: Cable adapter 10: Mounting part
11: Mounting body part 12: Insertion groove part
13: pressure welding fixing unit 14: rotation stabilizing unit
20: sensor moving part 21: rotating part
22: Rotating body part 22a: Stopper engaging part
23: fixture 23a: coupling groove
24: moving body 24a: coupling jaw portion
25: binding member 26: rail connection part
26a: 1st rail connection part 26b: 2nd rail connection part
27: moving part 28: moving main body
28a: stopper 29: rail part
29a: 1st rail part 29b: 2nd rail part
30: Distance measuring unit 31: Distance measuring sensor
32: Battery 33: Display unit

Claims (10)

A mounting portion mounted on a connection member fastened to a connected body;
a sensor moving unit movably installed on the mounting unit and disposed to face the connected object; and
A distance measuring unit installed on the sensor moving unit and measuring the distance to the connected object. A device for checking the fastening state of a connection member, comprising a.
According to paragraph 1,
The connection member is,
A connection main body connected to the connected body; and
A fastening coupling member disposed to be spaced apart from the connected body and coupling the connection body to the connected body by screwing,
A device for checking the fastening state of a connecting member, characterized in that the mounting portion is detachably mounted on the fastening coupling member.
According to paragraph 1,
The mounting part,
a mounting body portion in which an insertion groove is formed into which the end of the connecting member is inserted; and
A device for checking the fastening state of a connection member, comprising: a pressure-welding fixing portion that penetrates the mounting body portion and enters the insertion groove portion, and is pressure-contacted with the connection member.
According to paragraph 3,
The mounting part,
A device for checking the fastening state of a connection member, further comprising: a rotational stabilizing portion that protrudes from the inner surface of the insertion groove and has a cross-sectional shape whose width decreases toward the radial end side.
According to paragraph 1,
The sensor moving part,
a rotating portion rotatably coupled to the mounting portion; and
A device for checking the fastening state of a connection member, comprising a moving part that is slidably installed on the rotating part and whose position is adjusted based on the rotating part.
According to clause 5,
The rotating part,
a rotating body portion rotatably coupled to the mounting portion; and
A rail connection part formed on the rotating body part and movably supporting the rail part of the moving part.
According to clause 6,
The rotating body part,
a fixture rotatably coupled to the mounting unit and forming a first rail connection part connected to one side of the rail part among the rail connection parts;
A mobile body coupled to a side of the fixture and having a second rail connection part connected to the other side of the rail part among the rail connection parts; and
A binding member that binds the moving body to the fixed body and adjusts the distance between the first rail connection portion and the second rail connection portion.
In clause 7,
The fixture is,
It includes a coupling groove formed on one side in contact with the mobile body,
The moving object is,
A device for checking the fastening state of a connection member, comprising: a coupling jaw portion formed to protrude toward the fixture and engaged with the coupling groove portion.
According to clause 5,
The moving part,
A mobile main unit on which the distance measuring unit is installed; and
A device for checking the fastening state of a connection member, comprising: a rail portion formed on the movable body portion and slidably coupled to the rotating portion.
According to paragraph 1,
The distance measuring unit,
A distance measuring sensor installed on the sensor moving unit and measuring the distance to the connected object; and
a battery mounted on the sensor moving unit and supplying power to the distance measurement sensor; and
A device for checking the fastening state of a connection member, comprising a display unit that displays information about the distance measured by the distance measuring sensor.

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