System for monitoring loose connection of bolting structure

Abstract

The invention discloses a system for monitoring loose connection of a bolting structure, and the system comprises a first part which can be installed on one of a bolt part and a nut of the bolting structure, and the first part comprises a triggering part; the second component can be mounted on the other one of the bolt piece and the nut of the bolting structure, and the second component comprises a sensing part; when relative rotation occurs between the bolt piece and the nut of the bolting structure, relative movement occurs between the trigger part and the sensing part, and the sensing part is used for monitoring the relative movement between the trigger part and the sensing part. Through the application of the invention, the bolting structure loosening monitoring system suitable for fastening system risk management is provided, so that whether the bolting structure is loosened and fails or not can be known at least through angle displacement generated by loosening of the bolting structure; the bolting structure looseness monitoring system is easy to use, convenient to install and high in accuracy, the labor intensity of safety personnel is further reduced, and accidents can be effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of risk management of fastening systems, and in particular to a system for monitoring loose connection of a bolted structure. Background Art

[0002] At present, in order to achieve fastening connection between various structural components, a fastening system including a bolted structure is often considered. In order to timely identify the loosening or breakage of the bolted structure due to vibration or other conditions during long-term use, the existing technology generally relies solely on manual regular on-site inspections.

[0003] The above-mentioned manual regular on-site inspection mainly determines whether there is relative displacement based on the relative position of the nut of the bolted structure relative to the mark of the bolt or anchor; some also adopt the method of taking pictures of the bolted structure for comparison, but it still relies on manual analysis and judgment of the taken images; and some also use a torque wrench to manually check whether the corresponding torque is lost.

[0004] Since most of the above solutions rely on the naked eye recognition of the staff, it is bound to cause a lot of high-intensity repetitive labor, and with the generation of massive data and the decrease in recognition rate and the increase in missed detection rate caused by visual fatigue, this manual inspection is actually not reliable; some also consider using computer software to identify the above-mentioned video images, but when the nut displacement is small or it just moves one circle, it is still difficult to accurately identify it, which means that the risks of the fastening system will continue to exist. Summary of the invention

[0005] In view of this, in order to solve the above problems, the object of the present invention is to provide a system for monitoring the looseness of bolted structure connection, comprising:

[0006] A first component, the first component can be mounted on one of the bolt and the nut of the bolted structure, the first component comprising a trigger portion;

[0007] a second component, the second component being mountable on the other of the bolt and the nut of the bolted structure, the second component comprising a sensing portion;

[0008] Wherein, when the bolt and the nut of the bolted structure rotate relative to each other, the trigger part and the sensor part move relative to each other, and the sensor part is used to monitor the relative movement between the trigger part and the sensor part.

[0009] In another preferred embodiment, the first component includes: an annular portion and a radial portion, the annular portion can be sleeved on the bolt of the bolting structure, one end of the radial portion is connected to the annular portion, the other end of the radial portion is extended radially outward, and the other end of the radial portion is formed with the trigger portion.

[0010] In another preferred embodiment, the annular portion includes: an inner sleeve and an outer sleeve, the inner sleeve is connected to the radial portion, the inner sleeve can be sleeved on the bolt of the bolted structure, the outer sleeve is sleeved on the outer side of the inner sleeve, a protrusion is provided on the inner side of the outer sleeve, a deformation portion is formed on the inner sleeve, the protrusion is abutted against the deformation portion, and the deformation portion is abutted against the bolt.

[0011] In another preferred embodiment, an annular wall is formed on the upper portion of the second component, a notch is radially penetrated through the annular wall, and the trigger portion is movably disposed through the notch.

[0012] In another preferred embodiment, the trigger portion is an inclined surface.

[0013] In another preferred embodiment, the second component includes: a ring sleeve and a mounting seat, the ring sleeve can be sleeved on the outside of the nut of the bolted structure, the mounting seat is arranged on the outside of the ring sleeve, and the sensing part is arranged on the mounting seat.

[0014] In another preferred embodiment, the triggering part is a magnetic member, and the sensing part is a Hall sensor.

[0015] In another preferred embodiment, it further comprises: an acceleration sensor and / or an inclination sensor, wherein the acceleration sensor and / or the inclination sensor are arranged on the first component and / or the second component.

[0016] In another preferred embodiment, the relative movement between the triggering portion and the sensing portion is rotation.

[0017] The present invention also aims to provide a system for monitoring loose connection of an anchor structure, comprising:

[0018] An anchor, the anchor being mounted on a base surface;

[0019] a first component, the first component being mountable on one of the anchor and the base surface, the first component comprising a trigger portion;

[0020] a second component, the second component being mountable on the other of the anchor and the base surface, the second component comprising a sensing portion;

[0021] Wherein, when relative rotation occurs between the anchor and the base surface, relative movement occurs between the trigger portion and the sensor portion, and the sensor portion is used to monitor the relative movement between the trigger portion and the sensor portion.

[0022] Due to the adoption of the above technical solution, the present invention has the following positive effects compared with the prior art:

[0023] Through the application of the present invention, a monitoring system for loosening of bolted structures suitable for risk management of fastening systems is provided, so as to know whether the bolted structures are loose and fail at least through the angular displacement caused by the loosening of the bolted structures; the system of the present invention is simple to use, easy to install and has high accuracy, which further reduces the labor intensity of safety personnel and can effectively prevent accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an overall schematic diagram of a first embodiment of a system for monitoring loose connection of a bolted structure according to the present invention;

[0025] Figure 2 It is a cross-sectional schematic diagram of a first embodiment of a system for monitoring loose connection of a bolted structure of the present invention;

[0026] Figure 3 It is a schematic diagram of the installation of the sensor part of the first embodiment of the system for monitoring the loose connection of a bolted structure of the present invention;

[0027] Figure 4 It is an overall schematic diagram of a second embodiment of a system for monitoring loose connection of a bolted structure according to the present invention.

[0028] In the attached figure:

[0029] 1. Bolt; 2. Nut; 3. First component; 4. Triggering part; 5. Second component; 6. Sensing part; 7. Annular part; 8. Radial part; 9. Annular wall; 10. Notch; 11. Inner sleeve; 12. Outer sleeve; 13. Protrusion; 14. Deformation part; 15. Ring sleeve; 16. Mounting seat; 17. Anchor; 18. Base surface; 19. Contact point; 20. Inclined surface. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0031] In the description of the present invention, it is necessary to understand that the orientation or position relationship indicated by the terms such as "upper", "lower", "left", "right", "inside", "outside", "front", "back", "lateral" and "vertical" is based on the orientation or position relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or original referred to must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] It should be specially explained that the “horizontal” and “vertical” in the present invention are used to illustrate the approximate positional relationship, rather than a strict “horizontal plane” or “vertical plane”.

[0033] like Figures 1 to 3 The figure shows the first embodiment of the present invention, which shows a system for monitoring the loose connection of a bolted structure in a preferred embodiment, comprising: a first component 3, which can be installed on one of the bolt 1 and the nut 2 of the bolted structure, and the first component 3 includes a trigger part 4; a second component 5, which can be installed on the other of the bolt 1 and the nut 2 of the bolted structure, and the second component 5 includes a sensor part 6; wherein, when the bolt 1 and the nut 2 of the bolted structure rotate relative to each other, the trigger part 4 and the sensor part 6 move relative to each other, and the sensor part 6 is used to monitor the relative movement between the trigger part 4 and the sensor part 6. Furthermore, when the fastening system is loose, the sensor part 6 detects the trigger part 4 in real time, so that the safety personnel can directly obtain the corresponding loose information without manual inspection.

[0034] Furthermore, as a preferred embodiment, the above-mentioned fastening system is at least a bolting structure, and the bolting structure has a nut 2 and a bolt 1 that cooperate with each other.

[0035] Furthermore, as a preferred embodiment, the nut 2 and the bolt 1 are threadedly connected. When the loosening problem occurs, the nut 2 will at least rotate relative to the bolt 1 as mentioned above, and the corresponding first component 3 and the second component 5 will respectively drive the trigger part 4 and the sensor part 6 to move relative to each other as mentioned above. The rotation of the trigger part 4 is preferably the movement of the trigger part 4 in at least an arc path with the axis of the bolt 1 as the rotation axis.

[0036] Further, as a preferred embodiment, the relative movement between the triggering part 4 and the sensing part 6 is preferably in the form of rotation.

[0037] Further, as a preferred embodiment, the first component 3 is used to achieve a relatively fixed connection between the trigger portion 4 and the bolt 1 or the nut 2 .

[0038] Further, as a preferred embodiment, the second component 5 is used to achieve a relatively fixed connection between the sensing portion 6 and the nut 2 or the bolt 1 .

[0039] Further, as a preferred embodiment, the above-mentioned loosening problem is preferably that the nut 2 rotates relative to the bolt 1 under external influence without subjective operation by personnel.

[0040] Furthermore, as a preferred embodiment, when the system is pre-installed, the trigger portion 4 and the sensor portion 6 can have an angle of at least 20° to 30° in the circumferential direction of the bolt 1, so that a certain safety range is reserved on the rotation path, that is, when the rotation angle of the trigger portion 4 relative to the sensor portion 6 is less than the angle, the sensor portion 6 will not be triggered.

[0041] Further, as a preferred embodiment, the bolt 1 can be a bolt or an anchor bolt or other bolt-like structural parts that can be fitted with the nut 2 .

[0042] Further, as a preferred embodiment, Figure 1 As shown, the first component 3 is fixedly connected to the bolt 1, and the second component 5 is fixedly connected to the nut 2. Further, when the nut 2 is loosened and rotates relative to the bolt 1, the nut 2 will drive the second component 5 to rotate relative to the first component 3, and the sensor part 6 will be triggered by the trigger part 4.

[0043] Further, as a preferred embodiment, the first component 3 includes: an annular portion 7 and a radial portion 8, the annular portion 7 can be sleeved on the bolt 1 of the bolting structure, one end of the radial portion 8 is connected to the annular portion 7, and the other end of the radial portion 8 is extended outward along the radial direction of the bolt 1, and the other end of the radial portion 8 is formed with a trigger portion 4.

[0044] Further, as a preferred embodiment, the radial portion 8 is preferably a rod-shaped structure, so that it has a sufficient radial dimension so that the triggering portion 4 is disposed at a suitable position capable of triggering the sensing portion 6 .

[0045] Further, as a preferred embodiment, an annular wall 9 is formed on the upper portion of the second component 5, and the annular wall 9 is arranged around the bolt 1. A notch 10 is radially penetrated through the annular wall 9, and the other end of the trigger portion 4, i.e., the radial portion 8, is movably arranged through the notch 10.

[0046] Further, as a preferred embodiment, the annular portion 7 comprises: an inner sleeve 11 and an outer sleeve 12, the inner sleeve 11 is connected to the radial portion 8, the inner sleeve 11 can be sleeved on the bolt 1 of the bolting structure, the outer sleeve 12 is sleeved on the outer side of the inner sleeve 11, a protrusion 13 is arranged on the inner side of the outer sleeve 12, a deformation portion 14 is formed on the inner sleeve 11, the protrusion 13 and the deformation portion 14 are arranged to abut against each other, and the deformation portion 14 is arranged to abut against the bolt 1. Further, through the inner and outer cooperation of the inner sleeve 11 and the outer sleeve 12, the first component 3 having the annular portion 7 is compactly mounted on the bolt 1, so as to at least prevent the first component 3 from slipping relative to the bolt 1, specifically, the protrusion 13 of the outer sleeve 12 will press the deformation portion 14 inwardly, so that the deformation portion 14 is deformed inwardly and abuts against the bolt 1.

[0047] Further, as a preferred embodiment, the radial portion 8 and the inner sleeve body 11 are preferably an integrated structure.

[0048] Further, as a preferred embodiment, the outer casing 12 is preferably a nut structure.

[0049] Further, as a preferred embodiment, an inner thread is provided on the inner side of the lower part of the inner sleeve 11, and an outer thread matching the inner thread is provided on the outer side of the lower part of the outer sleeve 12. Further, the inner sleeve 11 and the outer sleeve 12 are relatively fixed by threaded connection.

[0050] Further, as a preferred embodiment, a protrusion 13 is formed on the inner side of the upper portion of the inner sleeve 11 and extends radially inward. The protrusion 13 is preferably arranged in a ring shape, and a deformation portion 14 is formed on the upper portion of the outer sleeve 12. When the outer sleeve 12 is sleeved on the outer periphery of the inner sleeve 11, the protrusion 13 thereof will squeeze the deformation portion 14 inward, so that a tight engagement is formed between the deformation portion 14 and the bolt 1.

[0051] Further, as a preferred embodiment, the deformation portion 14 is preferably a component extending upward along the circumference of the outer casing 12, and the component can be deformed at least in the radial direction.

[0052] Furthermore, as a preferred embodiment, a plurality of deformation portions 14 are sequentially arranged along the circumference of the upper edge of the outer casing 12 , and there is a certain interval between each two adjacent deformation portions 14 .

[0053] Further, as a preferred embodiment, the upper portion of the deformation portion 14 is preferably formed with a latching end, which can preferably abut against the thread of the bolt 1 after deformation, especially between two adjacent tooth structures in the thread of the bolt 1 to form a hook connection.

[0054] Further, as a preferred embodiment, the triggering mode of the sensor part 6 of the system for monitoring the loose connection of the bolted structure can be contact type or non-contact type.

[0055] Further, as a preferred embodiment, when the above-mentioned contact type is adopted, the triggering part 4 is at least allowed to contact with the sensing part 6 when rotating.

[0056] Further, as a preferred embodiment, when the above-mentioned contact type is used, the triggering portion 4 is an inclined surface 20, and the inclined surface 20 is inclined along the direction in which the triggering portion 4 contacts the sensing portion 6. Further, the sensing portion 6 can be triggered by the contact between the inclined surface 20 and the sensing portion 6.

[0057] Further, as a preferred embodiment, the inclined surface 20 is formed on the lower surface of the radial portion 8 .

[0058] Further, as a preferred embodiment, the horizontal height of the side of the inclined surface 20 away from the sensing portion 6 is preferably smaller than the horizontal height of the side of the inclined surface 20 close to the sensing portion 6 .

[0059] Further, as a preferred embodiment, when it is the above-mentioned contact type, the sensing part 6 is preferably provided with a contact 19 protruding upward, and the contact 19 is used to contact the trigger part 4. When the contact 19 contacts the trigger part 4, the sensing part 6 will obtain corresponding information; the sensing part 6 is preferably a contact sensor with a corresponding contact 19.

[0060] Further, as a preferred embodiment, the second component 5 includes: a ring sleeve 15 and a mounting seat 16, the ring sleeve 15 can be sleeved on the outside of the nut 2 of the bolted structure, the mounting seat 16 is arranged on the outside of the ring sleeve 15, and the mounting seat 16 is provided with a sensor part 6.

[0061] Furthermore, as a preferred embodiment, the mounting seat 16 is arranged to protrude radially outward relative to the ring sleeve 15 .

[0062] Furthermore, as a preferred embodiment, the upper surface of the mounting base 16 is formed with at least one mounting surface for mounting a touch sensor.

[0063] Further, as a preferred embodiment, when the non-contact type is used, the triggering part 4 is a magnetic member and the sensing part 6 is a Hall sensor. Further, the displacement of the magnetic member can be detected by the Hall sensor without contacting the Hall sensor.

[0064] Further, as a preferred embodiment, it also includes: an acceleration sensor and / or an inclination sensor, which is arranged on the first component 3 and / or the second component 5. Further, by setting the acceleration sensor or the inclination sensor, when the bolt 1 and / or the nut 2 is broken or otherwise damaged, the system for monitoring the loose connection of the bolted structure can obtain the tilt displacement generated by the bolt 1 and / or the nut 2.

[0065] Further, as a preferred embodiment, the acceleration sensor and / or the inclination sensor is preferably arranged inside the first component 3 and / or the second component 5 .

[0066] Furthermore, as a preferred embodiment, the acceleration sensor can at least identify the position changes of the bolt 1 on the X-axis, Y-axis and Z-axis, so that once the bolt 1 breaks, the posture of the bolt 1 can be directly determined, and corresponding alarm information can be provided.

[0067] Furthermore, as a preferred embodiment, it also includes: an alarm, a trigger unit 4, and at least one of the acceleration sensor and the inclination sensor can be communicatively connected to the alarm, the alarm is used to send out an alarm message, and the alarm message can be an electrical signal or sound information or light information, etc., so that security personnel can receive the alarm message in time.

[0068] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention.

[0069] The present invention also has the following implementation modes on the basis of the above:

[0070] like Figure 4 The figure shows the second embodiment of the present invention, which shows another preferred embodiment of a system for monitoring the loose connection of a bolted structure, i.e., a system for monitoring the loose connection of an anchoring structure, comprising: an anchor 17, the anchor 17 being mounted on a base surface 18; a first component 3, the first component 3 being mountable on one of the anchor 17 and the base surface 18, the first component 3 comprising a triggering portion 4; a second component 5, the second component 5 being mountable on the other of the anchor 17 and the base surface 18, the second component 5 comprising a sensing portion 6; wherein, when relative rotation occurs between the anchor 17 and the base surface 18, relative movement occurs between the triggering portion 4 and the sensing portion 6, and the sensing portion 6 is used to monitor the relative movement between the triggering portion 4 and the sensing portion 6. Furthermore, when an independent anchor 17 is mounted on a base surface 18, if the anchor 17 becomes loose, it will rotate relative to the base surface 18, and the corresponding risk information can be obtained through the cooperation between the sensing portion 6 and the triggering portion 4.

[0071] In a further embodiment of the present invention, the base surface 18 may be an outer surface of any component connected with the anchor 17 , and the anchor 17 may preferably be regarded as a screw or any other structure that is directly fastened to the base surface 18 by threaded engagement.

[0072] In a further embodiment of the present invention, the first component 3 is fixedly connected to the outer periphery of the anchor 17 , and the second component 5 is fixedly connected to the base surface 18 .

[0073] In a further embodiment of the present invention, the second component 5 may also be regarded as a part of the component to which the base surface 18 belongs.

[0074] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A system for monitoring loose connections of bolted structures, characterized in that: include: A first component, the first component can be mounted on one of the bolt and the nut of the bolted structure, the first component comprising a trigger portion; a second component, the second component being mountable on the other of the bolt and the nut of the bolted structure, the second component comprising a sensing portion; Wherein, when the bolt and the nut of the bolted structure rotate relative to each other, the trigger part and the sensor part move relative to each other, and the sensor part is used to monitor the relative movement between the trigger part and the sensor part.

2. The system according to claim 1, characterized in that: The first component includes: an annular portion and a radial portion, the annular portion can be sleeved on the bolt of the bolting structure, one end of the radial portion is connected to the annular portion, the other end of the radial portion extends radially outward, and the other end of the radial portion is formed with the trigger portion.

3. The system according to claim 2, characterized in that The annular portion includes: an inner sleeve and an outer sleeve, the inner sleeve is connected to the radial portion, the inner sleeve can be sleeved on the bolt of the bolt-connecting structure, the outer sleeve is sleeved on the outer side of the inner sleeve, a protrusion is arranged on the inner side of the outer sleeve, a deformation portion is formed on the inner sleeve, the protrusion is arranged to abut against the deformation portion, and the deformation portion is arranged to abut against the bolt.

4. The system according to claim 1, characterized in that An annular wall is formed on the upper portion of the second component, a notch is radially penetrated through the annular wall, and the triggering part is movably arranged through the notch.

5. The system according to claim 1, characterized in that The triggering portion is an inclined surface.

6. The system according to claim 1, characterized in that The second component includes: a ring sleeve and a mounting seat. The ring sleeve can be sleeved on the outer side of the nut of the bolted structure. The mounting seat is arranged on the outer side of the ring sleeve. The sensing part is arranged on the mounting seat.

7. The system according to claim 1, characterized in that The triggering part is a magnetic piece, and the sensing part is a Hall sensor.

8. The system according to claim 1, characterized in that: Also includes: An acceleration sensor and / or an inclination sensor, wherein the acceleration sensor and / or the inclination sensor are arranged on the first component and / or the second component.

9. The system according to claim 1, characterized in that: The relative movement between the triggering part and the sensing part is rotation.

10. A system for monitoring loose connection of an anchor structure, characterized in that: include: An anchor, the anchor being mounted on a base surface; a first component, the first component being mountable on one of the anchor and the base surface, the first component comprising a trigger portion; a second component, the second component being mountable on the other of the anchor and the base surface, the second component comprising a sensing portion; Wherein, when relative rotation occurs between the anchor and the base surface, relative movement occurs between the trigger portion and the sensor portion, and the sensor portion is used to monitor the relative movement between the trigger portion and the sensor portion.

Images