CN217381229U - Bolt capable of measuring elongation - Google Patents
Bolt capable of measuring elongation Download PDFInfo
- Publication number
- CN217381229U CN217381229U CN202221242841.XU CN202221242841U CN217381229U CN 217381229 U CN217381229 U CN 217381229U CN 202221242841 U CN202221242841 U CN 202221242841U CN 217381229 U CN217381229 U CN 217381229U
- Authority
- CN
- China
- Prior art keywords
- bolt
- measuring
- elongation
- displacement sensor
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a bolt capable of measuring elongation, which comprises an elongation measuring mechanism, wherein the elongation measuring mechanism is arranged at the upper end of a bolt main body and comprises a limiting disc, a fixed stud is arranged at the lower end of the limiting disc, a sensing measuring base is arranged at the upper end of the limiting disc, a measuring rod is arranged at the lower end of the fixed stud, and a displacement sensor is arranged at the lower end of the measuring rod; a measuring long hole located inside the bolt main body. This bolt main part and extension measuring mechanism mutual adaptation, extension measuring mechanism can fasten with the bolt head of bolt main part fast through fixing stud, extension measuring mechanism's measuring stick embedding measures the inside of slot hole, and displacement sensor is fixed with the distance of measuring the slot hole bottom this moment, adopts hydraulic pressure elongator tensile bolt main part, and deformation displacement takes place for the bolt pole portion, and displacement sensor and the distance change of measuring the slot hole bottom this moment, and displacement sensor detects out the displacement variation.
Description
Technical Field
The utility model relates to a bolt technical field specifically is a bolt of measurable elongation.
Background
The bolt is a mechanical part, and is a fastener composed of a head and a screw (a cylinder with external threads), the bolt is widely applied to various links of national economy such as ships, machinery, buildings and bridges, the bolt connection belongs to detachable connection, the bolt has the advantages of strong universality, low installation cost, repeated disassembly and assembly and the like, and is widely applied, and because the elongation of the bolt is only related to the stress of the bolt, the influence of variable factors such as friction coefficient, contact deformation and deformation of a connected piece can be eliminated. Therefore, the pretightening force can be controlled by the elongation of the bolt to obtain high precision;
for example, chinese granted patent publication No. CN109489887A (bolt elongation test system): the method comprises the following steps: the electric torch is tightened, and an output shaft of the electric torch is provided with an ultrasonic probe; the fixing device is used for fixing the bolt to be detected; and the patch is arranged at the head part of the bolt to be tested and is used for being matched with the ultrasonic probe. According to the bolt elongation testing system, the ultrasonic probe is arranged to transmit ultrasonic waves to the bolt to measure the elongation of the bolt, so that the bolt clamping force is tested, and compared with the prior art, the accuracy of bolt evaluation is improved;
although the elongation of bolt can be realized in the prior art, the measuring mechanism is large-scale equipment, and is large in size, complex in structure, high in operation cost and inconvenient to measure.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a bolt of measurable elongation to the current bolt elongation measurement mechanism who proposes in solving above-mentioned background art is bulky, and the structure is complicated, and the running cost is higher, and measures inconvenient problem.
In order to achieve the above object, the utility model provides a following technical scheme: a bolt capable of measuring elongation, comprising: a bolt body;
the elongation measuring mechanism is installed at the upper end of the bolt main body and comprises a limiting disc, a fixing stud is installed at the lower end of the limiting disc, a sensing measuring base is installed at the upper end of the limiting disc, a measuring rod is installed at the lower end of the fixing stud, and a displacement sensor is installed at the lower end of the measuring rod;
a measuring long hole located inside the bolt main body.
Preferably, the bolt body includes a bolt head and a bolt shank, and the bolt shank is located at a lower end of the bolt head.
Preferably, the lower end of the bolt rod part is provided with a screw rod, and the screw rod, the bolt rod part and the bolt head part are arranged into an integrally formed structure.
Preferably, the fixing stud is embedded in the bolt head, an internal thread is arranged on the inner side of the bolt head, and the fixing stud is in threaded connection with the bolt head.
Preferably, the measuring rod and the displacement sensor are embedded in the measuring long hole.
Preferably, the sensing measurement base comprises an inductance sensor, a signal processing module, a single chip microcomputer and a wireless transmitting module, a display screen is arranged at the upper end of the sensing measurement base, and the display screen comprises a wireless receiving module, the single chip microcomputer and a liquid crystal display module.
Compared with the prior art, the beneficial effects of the utility model are that: the bolt capable of measuring the elongation;
this bolt main part and extension measurement mechanism mutual adaptation, extension measurement mechanism can be through the quick bolt head fastening with the bolt main part of fixing stud, extension measurement mechanism's measuring stick embedding measures the inside of slot hole, displacement sensor is fixed with the distance of measuring the slot hole bottom this moment, adopt hydraulic pressure elongator tensile bolt main part, bolt pole portion takes place deformation displacement, displacement sensor and the distance change of measuring the slot hole bottom this moment, displacement sensor detects out the displacement variation, can draw the extension of bolt main part through calculating, and show measurement value through the display screen, bolt main part and extension measurement mechanism cooperation use, realize the quick accurate measurement of bolt extension, overall structure is simple small and exquisite, the running cost is lower, it is convenient quick to measure.
Drawings
Fig. 1 is a schematic structural view of a bolt capable of measuring elongation according to the present invention;
fig. 2 is a front view of a bolt capable of measuring elongation according to the present invention;
FIG. 3 is a partial enlarged view of region A of the present invention;
fig. 4 is a plan view of the elongation measuring mechanism of the present invention.
In the figure: 1. a bolt body; 2. a bolt head; 3. a bolt shank; 4. a screw; 5. an elongation measuring mechanism; 6. a limiting disc; 7. fixing the stud; 8. a measuring rod; 9. a displacement sensor; 10. measuring the long hole; 11. an internal thread; 12. a sensing measurement base; 13. a display screen.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a bolt capable of measuring elongation, comprising: the device comprises a bolt main body 1, a bolt head 2, a bolt rod part 3, a screw rod 4, an elongation measuring mechanism 5, a limiting disc 6, a fixed stud 7, a measuring rod 8, a displacement sensor 9, a measuring long hole 10, an internal thread 11, a sensing measuring base 12 and a display screen 13;
the elongation measuring mechanism 5 is installed at the upper end of the bolt main body 1, the elongation measuring mechanism 5 comprises a limiting disc 6, a fixing stud 7 is installed at the lower end of the limiting disc 6, a sensing measuring base 12 is installed at the upper end of the limiting disc 6, a measuring rod 8 is installed at the lower end of the fixing stud 7, and a displacement sensor 9 is installed at the lower end of the measuring rod 8;
and a measurement long hole 10 located inside the bolt body 1.
Referring to fig. 1 and 2, a bolt body 1 includes a bolt head 2 and a bolt rod 3, the bolt rod 3 is located at the lower end of the bolt head 2, the bolt body 1 is stretched by a hydraulic stretcher, the bolt rod 3 deforms and displaces, the distance between a displacement sensor 9 and the bottom of a long measurement hole 10 changes, and the displacement sensor 9 detects the displacement variation;
referring to fig. 1 and 2, a screw rod 4 is arranged at the lower end of a bolt rod part 3, and the screw rod 4, the bolt rod part 3 and the bolt head part 2 are arranged into an integrally formed structure, so that the structure is simple and the forming is convenient;
referring to fig. 1 and 2, the fixing stud 7 is embedded in the bolt head 2, the inner side of the bolt head 2 is provided with the internal thread 11, and the fixing stud 7 is in threaded connection with the bolt head 2, so that the connecting mode is simple and the assembly and disassembly are convenient;
referring to fig. 2 and 3, the measuring rod 8 and the displacement sensor 9 are embedded inside the measuring slot 10.
Referring to fig. 1, 2 and 4, the sensing and measuring base 12 includes an inductance sensor, a signal processing module, a single chip microcomputer and a wireless transmitting module, a display screen 13 is disposed at the upper end of the sensing and measuring base 12, the display screen 13 includes a wireless receiving module, the single chip microcomputer and a liquid crystal display module, the displacement sensor 9 detects displacement variation, the elongation of the bolt body 1 can be obtained through calculation, and a measured value is displayed through the display screen 13.
The working principle is as follows: when the bolt is used, the bolt main body 1 and the elongation measuring mechanism 5 are mutually matched, the elongation measuring mechanism 5 is fastened with the bolt head 2 of the bolt main body 1 through the fixing stud 7, the measuring rod 8 and the displacement sensor 9 of the elongation measuring mechanism 5 are embedded into the measuring long hole 10, the distance between the displacement sensor 9 and the bottom of the measuring long hole 10 is fixed, after the fixing is completed, the bolt main body 1 is stretched through a hydraulic stretcher, the bolt rod part 3 is deformed and displaced, the distance between the displacement sensor 9 and the bottom of the measuring long hole 10 is changed, the displacement change quantity is detected by the displacement sensor 9, the elongation of the bolt main body 1 can be obtained through calculation, the measured value is displayed through the display screen 13, the bolt main body 1 is matched with the elongation measuring mechanism 5 for use, the rapid and accurate measurement of the elongation of the bolt is realized, the whole structure is simple and small, the operation cost is low, the measurement is convenient and fast.
Those not described in detail in this specification are within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A bolt of measurable elongation, includes bolt main part (1), its characterized in that:
the bolt comprises a bolt main body (1), an elongation measuring mechanism (5) and a displacement sensor (9), wherein the elongation measuring mechanism (5) is installed at the upper end of the bolt main body (1), and comprises a limiting disc (6), a fixing stud (7) is installed at the lower end of the limiting disc (6), a sensing measuring base (12) is installed at the upper end of the limiting disc (6), a measuring rod (8) is installed at the lower end of the fixing stud (7), and the displacement sensor (9) is installed at the lower end of the measuring rod (8);
a measurement long hole (10) located inside the bolt main body (1).
2. A bolt of claim 1, wherein: the bolt main body (1) comprises a bolt head (2) and a bolt rod part (3), and the bolt rod part (3) is located at the lower end of the bolt head (2).
3. A bolt of claim 2, wherein: the lower end of the bolt rod part (3) is provided with a screw rod (4), and the screw rod (4), the bolt rod part (3) and the bolt head part (2) are arranged to be of an integrally formed structure.
4. A bolt of claim 2, wherein: the fixing stud (7) is embedded into the bolt head (2), an internal thread (11) is arranged on the inner side of the bolt head (2), and the fixing stud (7) is in threaded connection with the bolt head (2).
5. A bolt of claim 1, wherein: the measuring rod (8) and the displacement sensor (9) are embedded into the measuring long hole (10).
6. A bolt of claim 1, wherein: the sensing and measuring base (12) comprises an inductance sensor, a signal processing module, a single chip microcomputer and a wireless transmitting module, a display screen (13) is arranged at the upper end of the sensing and measuring base (12), and the display screen (13) comprises a wireless receiving module, the single chip microcomputer and a liquid crystal display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221242841.XU CN217381229U (en) | 2022-05-23 | 2022-05-23 | Bolt capable of measuring elongation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221242841.XU CN217381229U (en) | 2022-05-23 | 2022-05-23 | Bolt capable of measuring elongation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217381229U true CN217381229U (en) | 2022-09-06 |
Family
ID=83087839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221242841.XU Active CN217381229U (en) | 2022-05-23 | 2022-05-23 | Bolt capable of measuring elongation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217381229U (en) |
-
2022
- 2022-05-23 CN CN202221242841.XU patent/CN217381229U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110073190B (en) | Device and method for monitoring oil pressure in oil cylinder of diaphragm compressor | |
| CN103439035A (en) | Threaded fastener pre-tightening force measuring method and measuring device thereof | |
| CN203349779U (en) | Strain-type displacement sensor and elevator brake having same | |
| CN105424481A (en) | Threaded fastener guarantee load testing apparatus and testing method thereof | |
| CN202383021U (en) | Device for measuring tension and compression elasticity modulus of material | |
| CN217381229U (en) | Bolt capable of measuring elongation | |
| CN109708608A (en) | A kind of adjustable clipping high-temperature extensometer of spacing | |
| CN110608826A (en) | Device for dynamically measuring real-time stress of motor | |
| CN206470007U (en) | A kind of multidirectional force snesor | |
| CN205538061U (en) | Area fork earing pole suo li test and calbiration system | |
| CN108151947A (en) | The caliberating device and scaling method of a kind of pretightning force and elongation | |
| CN114674479B (en) | Boom cable force real-time monitoring method and monitoring device | |
| CN209764562U (en) | Test system for detecting pre-tightening force of blind rivet | |
| CN212432783U (en) | Stratified rock mass annular strain multipoint testing device | |
| CN1916564B (en) | Method and equipment for measuring increment of circumferential arc length in columned sample | |
| CN211086301U (en) | Portable penetration resistance appearance | |
| CN201548353U (en) | Test force calibration device of testing machine | |
| CN207991524U (en) | A kind of strain-type intelligent inclinometer | |
| CN2489326Y (en) | Force sensor for on-line automatic testing device | |
| CN208505810U (en) | A kind of Brinell hardness tester of portable direct-reading | |
| CN201000378Y (en) | Curtain wall tightwire pull force tester | |
| CN201544430U (en) | Clamping force measuring device for injection molding machine | |
| CN216694952U (en) | Residual deformation measuring instrument for mechanical connection of steel bars | |
| CN211121130U (en) | Novel height detection device | |
| CN210833479U (en) | Generator yoke screw rod extension measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |