CN108730304B - High-stability loosening alarm U-shaped bolt - Google Patents
High-stability loosening alarm U-shaped bolt Download PDFInfo
- Publication number
- CN108730304B CN108730304B CN201810521255.0A CN201810521255A CN108730304B CN 108730304 B CN108730304 B CN 108730304B CN 201810521255 A CN201810521255 A CN 201810521255A CN 108730304 B CN108730304 B CN 108730304B
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- Prior art keywords
- rubber sleeve
- hemispherical
- pressure sensor
- rubber
- rod
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- 238000009434 installation Methods 0.000 claims description 8
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention discloses a high-stability loosening alarm U-shaped bolt which comprises a controller, a first straight rod part, a second straight rod part, an arc rod part, a first rubber sleeve and a second rubber sleeve, wherein the first straight rod part and the second straight rod part are respectively provided with an external thread, a plurality of first hemispherical rubber bulges are fixed on the inner side of the first rubber sleeve, the plurality of first hemispherical rubber bulges are respectively provided with a hemispherical first cavity, a first pressure sensor is installed in the first cavity of one first hemispherical rubber bulge, a plurality of second hemispherical rubber bulges are fixed on the inner side of the second rubber sleeve, the plurality of second hemispherical rubber bulges are respectively provided with a hemispherical second cavity, and a second pressure sensor is installed in the second cavity of one second hemispherical rubber bulge. The U-shaped bolt has good stability and can give an alarm in time when the U-shaped bolt is loosened.
Description
Technical Field
The invention relates to the field of machinery, in particular to a high-stability loosening alarm U-shaped bolt.
Background
The U-shaped bolt is a common fixing part in the mechanical field, can effectively fix a tubular part and is fixed by two nuts and one U-shaped bolt. In actual use, the U-shaped bolt is always in rigid contact with the fixed tubular component, so that the component is damaged on one hand, and the U-shaped bolt can be loosened after being used for a period of time on the other hand. And sometimes the U-shaped bolt is not known in time when being broken.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides a high-stability loosening alarm U-shaped bolt.
The technical scheme is as follows: a U-shaped bolt comprises a controller, a first straight rod part, a second straight rod part, an arc rod part, a first rubber sleeve and a second rubber sleeve, wherein the first straight rod part and the second straight rod part are provided with external threads, the first straight rod part is connected with one end of the arc rod, the second straight rod part is connected with the other end of the arc rod, the first rubber sleeve and the second rubber sleeve are sleeved outside the arc rod, the first rubber sleeve is provided with a first arc-shaped through hole which is penetrated by the arc rod, the cross section of the first rubber sleeve is in a shape formed by splicing a semicircle and a rectangle, a plurality of first semispherical rubber bulges are fixed on the inner side of the first rubber sleeve, each of the plurality of first semispherical rubber bulges is provided with a semispherical first cavity, a first pressure sensor is installed in the first cavity of one first semispherical rubber bulge, and the second rubber sleeve is provided with a second arc-shaped through hole penetrated by the arc rod, the section of the second rubber sleeve is in a shape formed by splicing a semicircle and a rectangle, a plurality of second hemispherical rubber bulges are fixed on the inner side of the second rubber sleeve, the second hemispherical rubber bulges are provided with hemispherical second cavities, and a second pressure sensor is arranged in the second cavity of one second hemispherical rubber bulge; one end of the second rubber sleeve is fixedly connected with an insertion rod, one end of the first rubber sleeve is provided with a blind hole into which the insertion rod is inserted, a third pressure sensor is fixed at the closed end of the blind hole, the end part of the insertion rod is connected with a movable pressing plate through a compression spring, the movable pressing plate is abutted against the third pressure sensor, and the end part of the first rubber sleeve is abutted against the end part of the second rubber sleeve; the controller controls the pressure sensor to send out an alarm signal when the measured value of the first pressure sensor is smaller than a first set threshold value, or the measured value of the second pressure sensor is smaller than a second set threshold value, or the measured value of the third pressure sensor is smaller than a third set threshold value.
Further, the first threshold is equal to a second threshold.
Further, the rectangular part of the cross section of the first rubber sleeve is positioned on the inner side of the first rubber sleeve, and the semicircular part of the cross section of the first rubber sleeve is positioned on the outer side of the first rubber sleeve; the rectangular part of the section of the second rubber sleeve is positioned on the inner side of the second rubber sleeve, and the semicircular part of the section of the second rubber sleeve is positioned on the outer side of the second rubber sleeve.
Furthermore, the axes of the inserted rod and the blind hole are both arc-shaped, and the sections of the inserted rod and the blind hole are both circular.
Further, the first hemispherical bulges are distributed in a 3 × 4 array, and the second hemispherical bulges are distributed in a 3 × 4 array.
Further, an installation cavity is formed in the first rubber sleeve, a Bluetooth device and the controller are installed in the installation cavity, the first pressure sensor, the second pressure sensor, the third pressure sensor and the Bluetooth device are all connected with the controller, and the alarm signal is sent out through the Bluetooth device.
Furthermore, a first threading channel communicated with the installation cavity is arranged in the first rubber sleeve, and a second threading channel communicated with the first threading channel and a hemispherical bulge provided with a second pressure sensor is arranged in the second rubber sleeve.
The first threading channel and the second threading channel can penetrate through the conducting wire.
Further, a battery unit is also installed in the installation cavity.
Has the advantages that: according to the U-shaped bolt, the first rubber sleeve and the second rubber sleeve are arranged, so that when a tubular component is fixed, buffering is provided, rigid contact cannot occur, and the U-shaped bolt is more tightly fixed and is not easy to slide due to the arrangement of the plurality of hemispherical protrusions. And the first, second and third pressure sensors are arranged, so that the failure of bolt fastening can be found.
Drawings
FIG. 1 is a schematic view of a U-bolt;
FIG. 2 is an enlarged view of area A;
FIG. 3 is a schematic cross-sectional view at C-C';
FIG. 4 is a schematic view of a U-bolt fastening a fastened member;
fig. 5 is an enlarged schematic view of the region B.
Detailed Description
Reference numerals: 1, a first rubber sleeve; 1.1 a first hemispherical protrusion; 1.2 a first pressure sensor; 1.3 installing a cavity; 2, a second rubber sleeve; 2.1 second hemispherical bulge; 2.2 a second pressure sensor; 3.1 inserting the rod; 3.2 compressing the spring; 3.3, a movable pressing plate; 4 a third pressure sensor; 10.1 a first straight rod; 10.2 a second straight rod; 10.3 an arc-shaped rod; 11 are fastened to the component.
A U-shaped bolt comprises a controller, a first straight rod part 10.1, a second straight rod part 10.2, an arc rod part 10.3, a first rubber sleeve 1 and a second rubber sleeve 2, wherein the first straight rod and the second straight rod are provided with external threads, the first straight rod is connected with one end of the arc rod, the second straight rod is connected with the other end of the arc rod, the first rubber sleeve and the second rubber sleeve are sleeved outside the arc rod, the first rubber sleeve is provided with a first arc-shaped through hole which is penetrated by the arc rod, the cross section of the first rubber sleeve is in a shape formed by splicing a semicircle and a rectangle, a plurality of first hemispherical rubber bulges 1.1 are fixed on the inner side of the first rubber sleeve, the plurality of first hemispherical rubber bulges are provided with hemispherical first cavities, a first pressure sensor 1.2 is installed in the first cavity of one first hemispherical rubber bulge, the second rubber sleeve is provided with a second arc-shaped through hole which is penetrated by the arc rod, the section of the second rubber sleeve is in a shape formed by splicing a semicircle and a rectangle, a plurality of second hemispherical rubber bulges 2.1 are fixed on the inner side of the second rubber sleeve 2, the second hemispherical rubber bulges are provided with hemispherical second cavities, and a second pressure sensor 2.2 is arranged in the second cavity of one second hemispherical rubber bulge; one end of the second rubber sleeve 2 is fixedly connected with an insert rod 3.1, one end of the first rubber sleeve 1 is provided with a blind hole into which the insert rod 3.1 is inserted, a third pressure sensor 4 is fixed at the closed end of the blind hole, the end part of the insert rod 3.1 is connected with a movable pressure plate 3.3 through a compression spring 3.2, the movable pressure plate is abutted against the third pressure sensor 4, and the end part of the first rubber sleeve 1 is abutted against the end part 2 of the second rubber sleeve; the controller controls the pressure sensor to send out an alarm signal when the measured value of the first pressure sensor is smaller than a first set threshold value, or the measured value of the second pressure sensor is smaller than a second set threshold value, or the measured value of the third pressure sensor is smaller than a third set threshold value.
The first threshold is equal to the second threshold. The rectangular part of the section of the first rubber sleeve is positioned at the inner side of the first rubber sleeve, and the semicircular part of the section of the first rubber sleeve is positioned at the outer side of the first rubber sleeve; the rectangular part of the section of the second rubber sleeve is positioned on the inner side of the second rubber sleeve, and the semicircular part of the section of the second rubber sleeve is positioned on the outer side of the second rubber sleeve. The axes of the inserted rod and the blind hole are both arc-shaped, and the cross sections of the inserted rod and the blind hole are both circular. The first hemispherical bulges are distributed in a 3 multiplied by 4 array shape, and the second hemispherical bulges are distributed in a 3 multiplied by 4 array shape. The first rubber sleeve is internally provided with an installation cavity, the installation cavity is internally provided with a Bluetooth device and the controller, the first pressure sensor, the second pressure sensor, the third pressure sensor and the Bluetooth device are all connected with the controller, and the alarm signal is sent out through the Bluetooth device. A first threading channel communicated with the installation cavity is arranged in the first rubber sleeve, and a second threading channel communicated with the first threading channel and provided with a hemispherical bulge of the second pressure sensor is arranged in the second rubber sleeve. And a battery unit is also arranged in the mounting cavity.
According to the bolt, the first rubber sleeve and the second rubber sleeve are arranged between the U-shaped rod and the fastened part, and the first hemispherical bulge and the second hemispherical bulge are arranged on the inner sides of the first rubber sleeve and the second rubber sleeve, so that buffering is provided, the fastened part is not easy to damage, friction force is increased by the first hemispherical bulge and the second hemispherical bulge, and the U-shaped bolt and the fastened part are not easy to slide. And because the movable pressure plate is abutted against the third pressure sensor, when the measured value of the third pressure sensor is smaller than a third set threshold value, the U-shaped rod part is likely to break, and the inserted rod falls off from the blind hole, so that the alarm is given in time.
Normally, the fastened component presses the first and second hemispherical bulges, so that the measured values of the first and second pressure sensors are greater than the first and second set thresholds, and when more than one of the measured values is less than the corresponding set thresholds, the U-shaped bolt is likely to be loosened, thereby timely alarming and reminding maintenance. And when loosening occurs, the first hemispherical bulge and the second hemispherical bulge can reset due to the elasticity of the first hemispherical bulge and the second hemispherical bulge, so that the measurement values of the first pressure sensor and the second pressure sensor are further smaller than the corresponding set threshold values.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (8)
1. A high-stability loosening alarm U-shaped bolt is characterized by comprising a controller, a first straight rod part, a second straight rod part, an arc rod part, a first rubber sleeve and a second rubber sleeve, wherein the first straight rod and the second straight rod are provided with external threads, the first straight rod is connected with one end of the arc rod, the second straight rod is connected with the other end of the arc rod, the first rubber sleeve and the second rubber sleeve are sleeved outside the arc rod, the first rubber sleeve is provided with a first arc-shaped through hole which is penetrated by the arc rod, the cross section of the first rubber sleeve is in a shape formed by splicing a semicircle and a rectangle, a plurality of first hemispherical rubber bulges are fixed on the inner side of the first rubber sleeve, the plurality of first hemispherical rubber bulges are provided with hemispherical first cavities, a first pressure sensor is installed in the first cavity of one first hemispherical rubber bulge, and the second rubber sleeve is provided with a second arc-shaped through hole which is penetrated by the arc rod, the section of the second rubber sleeve is in a shape formed by splicing a semicircle and a rectangle, a plurality of second hemispherical rubber bulges are fixed on the inner side of the second rubber sleeve, the second hemispherical rubber bulges are provided with hemispherical second cavities, and a second pressure sensor is arranged in the second cavity of one second hemispherical rubber bulge; one end of the second rubber sleeve is fixedly connected with an insertion rod, one end of the first rubber sleeve is provided with a blind hole into which the insertion rod is inserted, a third pressure sensor is fixed at the closed end of the blind hole, the end part of the insertion rod is connected with a movable pressing plate through a compression spring, the movable pressing plate is abutted against the third pressure sensor, and the end part of the first rubber sleeve is abutted against the end part of the second rubber sleeve; the controller controls the pressure sensor to send out an alarm signal when the measured value of the first pressure sensor is smaller than a first set threshold value, or the measured value of the second pressure sensor is smaller than a second set threshold value, or the measured value of the third pressure sensor is smaller than a third set threshold value.
2. The high stability loosening warning U-bolt of claim 1 wherein the first threshold is equal to the second threshold.
3. The high-stability loosening warning U-shaped bolt according to claim 1, wherein a rectangular part of the cross section of the first rubber sleeve is positioned on the inner side of the first rubber sleeve, and a semicircular part of the cross section is positioned on the outer side of the first rubber sleeve; the rectangular part of the section of the second rubber sleeve is positioned on the inner side of the second rubber sleeve, and the semicircular part of the section of the second rubber sleeve is positioned on the outer side of the second rubber sleeve.
4. The high-stability loosening alarm U-shaped bolt according to claim 1, wherein the axes of the inserted rod and the blind hole are both arc-shaped, and the cross sections of the inserted rod and the blind hole are both circular.
5. The high stability loosening warning U-bolt of claim 1 wherein the first plurality of hemispherical protrusions are distributed in a 3 x 4 array and the second plurality of hemispherical protrusions are distributed in a 3 x 4 array.
6. The high-stability loosening alarm U-shaped bolt according to claim 1, wherein a mounting cavity is formed in the first rubber sleeve, a Bluetooth device and the controller are mounted in the mounting cavity, the first pressure sensor, the second pressure sensor, the third pressure sensor and the Bluetooth device are all connected with the controller, and the alarm signal is sent out through the Bluetooth device.
7. The high stability loosening warning U-bolt of claim 6 wherein the first rubber boot has a first threading channel therein communicating with the installation cavity and the second rubber boot has a second threading channel therein communicating with the first threading channel and a second hemispherical protrusion to which a second pressure sensor is mounted.
8. The high stability loosening warning U-bolt of claim 6 wherein a battery unit is also mounted within the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521255.0A CN108730304B (en) | 2018-05-28 | 2018-05-28 | High-stability loosening alarm U-shaped bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810521255.0A CN108730304B (en) | 2018-05-28 | 2018-05-28 | High-stability loosening alarm U-shaped bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108730304A CN108730304A (en) | 2018-11-02 |
| CN108730304B true CN108730304B (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810521255.0A Active CN108730304B (en) | 2018-05-28 | 2018-05-28 | High-stability loosening alarm U-shaped bolt |
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| Country | Link |
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| CN (1) | CN108730304B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111815913B (en) * | 2020-07-27 | 2021-08-24 | 赣州德业电子科技有限公司 | Bolt looseness prevention monitoring and alarming device |
| CN112922946A (en) * | 2021-01-18 | 2021-06-08 | 紧固仓盟(江苏)科技有限公司 | Split type threaded fastener with bidirectional adjusting mechanism |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2189708A1 (en) * | 1972-06-19 | 1974-01-25 | Gulf Oil Corp | |
| US5215281A (en) * | 1991-09-27 | 1993-06-01 | Zsi, Inc. | Two-piece cushion insert for U-bolt clamp assembly |
| JPH10213118A (en) * | 1997-01-30 | 1998-08-11 | Kii Seisan Kk | U-bolt |
| JP2004254462A (en) * | 2003-02-21 | 2004-09-09 | Tokyo Electric Power Co Inc:The | Conduit fixing method and u-bolt |
| CN203643159U (en) * | 2014-01-14 | 2014-06-11 | 重庆电子工程职业学院 | Machine tool bolt looseness detection device |
| CN106499701A (en) * | 2015-09-07 | 2017-03-15 | 天津嘉泰盈顺健身器材有限公司 | A kind of steel pipe with anticreep alarm device is buckled |
| CN106815979A (en) * | 2017-04-07 | 2017-06-09 | 山西大唐国际云冈热电有限责任公司 | U-shaped fracture automatic alarm bolt |
| CN207018318U (en) * | 2017-03-01 | 2018-02-16 | 山东科技大学 | One kind can monitoring alarm type anticreep expansion bolt |
-
2018
- 2018-05-28 CN CN201810521255.0A patent/CN108730304B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2189708A1 (en) * | 1972-06-19 | 1974-01-25 | Gulf Oil Corp | |
| US5215281A (en) * | 1991-09-27 | 1993-06-01 | Zsi, Inc. | Two-piece cushion insert for U-bolt clamp assembly |
| JPH10213118A (en) * | 1997-01-30 | 1998-08-11 | Kii Seisan Kk | U-bolt |
| JP2004254462A (en) * | 2003-02-21 | 2004-09-09 | Tokyo Electric Power Co Inc:The | Conduit fixing method and u-bolt |
| CN203643159U (en) * | 2014-01-14 | 2014-06-11 | 重庆电子工程职业学院 | Machine tool bolt looseness detection device |
| CN106499701A (en) * | 2015-09-07 | 2017-03-15 | 天津嘉泰盈顺健身器材有限公司 | A kind of steel pipe with anticreep alarm device is buckled |
| CN207018318U (en) * | 2017-03-01 | 2018-02-16 | 山东科技大学 | One kind can monitoring alarm type anticreep expansion bolt |
| CN106815979A (en) * | 2017-04-07 | 2017-06-09 | 山西大唐国际云冈热电有限责任公司 | U-shaped fracture automatic alarm bolt |
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| Publication number | Publication date |
|---|---|
| CN108730304A (en) | 2018-11-02 |
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