CN114260850B - Construction intelligent sleeve for detecting bolt pretightening force in real time - Google Patents
Construction intelligent sleeve for detecting bolt pretightening force in real time Download PDFInfo
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- CN114260850B CN114260850B CN202111672600.9A CN202111672600A CN114260850B CN 114260850 B CN114260850 B CN 114260850B CN 202111672600 A CN202111672600 A CN 202111672600A CN 114260850 B CN114260850 B CN 114260850B
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- pretightening force
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The invention discloses a construction intelligent sleeve for detecting bolt pretightening force in real time, which comprises a shell, a sliding part and a detection assembly. The casing is inside to be formed with first installation cavity, and casing one end is provided with connecting portion, has seted up the holding chamber on the other end of casing. The sliding part is arranged in the first mounting cavity and can axially slide and rotate relative to the shell, an elastic abutting part is arranged between the sliding part and the shell, and a second mounting cavity is formed in the sliding part. The detection assembly comprises a probe and a matched transmitting and receiving circuit, the probe is arranged in the second mounting cavity, when the end face of the bolt is in contact with the probe, the probe can be abutted against the bolt and can move synchronously with the bolt, and the continuous change of the pretightening force of the bolt in the process of screwing the nut is monitored to form detection data. The construction intelligent sleeve for detecting the pretightening force of the bolt in real time integrates the bolt screwing function and the bolt torsion and pretightening force detection function, can quickly detect when screwing the bolt and the nut, and is more convenient.
Description
Technical Field
The invention relates to the technical field of detection equipment, in particular to a construction intelligent sleeve for detecting bolt pretightening force in real time by utilizing an electromagnetic ultrasonic technology.
Background
At present, various torque wrenches are available on the market, the torque wrench can only measure the torque of a bolt and a nut, and the bolt pretightening force does not have a detection function. The devices with the bolt pretightening force detection function are often complex in structure and large in size, and do not have the functions of detecting the pretightening force and simultaneously screwing the bolt and the nut. In some important occasions, for example, bolts with higher strength need to be used, the requirements on the torque of the bolts are met, the pre-tightening force of the bolts is required, and the internal stress of the bolts needs to be detected so as to check whether the allowable stress is exceeded or the safety coefficient of use is reached. At this time, the existing torque wrench is not free from the strength, and the use requirement of the user is often not met.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a construction intelligent sleeve for detecting the pretightening force of a bolt in real time, which integrates the bolt screwing function and the bolt torsion and pretightening force detection function into a whole, can quickly detect when a bolt and a nut are screwed, and is more convenient.
In order to achieve the above object, an embodiment of the present invention provides a construction intelligent sleeve for detecting bolt pretightening force in real time, which includes a housing, a sliding member and a detection assembly.
The casing is inside to be formed with first installation cavity, be provided with the connecting portion that supply external drive equipment to connect on the casing one end, set up the holding chamber that is used for placing the nut on the other end of casing.
The sliding part is arranged in the first mounting cavity and can axially slide and rotate relative to the shell, an elastic abutting part is arranged between the sliding part and the shell, and a second mounting cavity is formed in the sliding part. And
the detection assembly comprises a probe and a matched transmitting and receiving circuit, the probe is installed in the second installation cavity, the end face of the probe protrudes out of the bottom face of the sliding part and extends into the first installation cavity, after the end face of the bolt is contacted with the probe, the probe can be abutted against the bolt and synchronously moves along with the bolt, the continuous change of the bolt pretightening force in the nut screwing process is monitored, and detection data are formed.
In one or more embodiments of the present invention, the accommodating cavity is communicated with the first mounting cavity, and a threaded hole for mounting a probe is opened on the bottom of the sliding member.
In one or more embodiments of the invention, the probe has a certain magnetic attraction force and can be adsorbed on the top end surface of the bolt after the bolt initially extends into the first mounting cavity and contacts the end surface of the probe.
In one or more embodiments of the invention, the probe is an electromagnetic ultrasound probe.
In one or more embodiments of the present invention, a step portion is convexly provided on the top wall inside the casing, a retaining ring is slidably sleeved on the step portion, and the elastic abutting member is disposed between the retaining ring and the sliding member.
In one or more embodiments of the present invention, a bearing is provided between the step portion and the retainer ring, and the retainer ring is fixed to an outer ring of the bearing and forms a gap with the inner top wall of the housing.
In one or more embodiments of the present invention, the construction intelligent sleeve for detecting the pretightening force of the bolt in real time further includes a sliding shaft sleeve, the sliding shaft sleeve is fixed on the inner wall of the first installation cavity, and the sliding member is embedded in the sliding shaft sleeve and can slide and rotate along the axial direction of the sliding shaft sleeve.
In one or more embodiments of the present invention, a limiting portion is formed on an upper edge of the sliding member, and the limiting portion can abut against an end face of the sliding sleeve; the upper end face of the limiting portion is provided with a sleeve portion, and the sleeve portion is used for sleeving the elastic abutting piece.
In one or more embodiments of the invention, a contact switch is mounted on the upper end of the sleeve part of the sliding part, and the contact switch is used for limiting the limit position of the upward movement of the sliding part.
In one or more embodiments of the present invention, the detection assembly further includes a PCB board, a switch, a battery, and a power interface, the PCB board is disposed in the second mounting cavity of the sliding member, the PCB board is connected to the probe for data processing and outputting detection data, the battery is connected to the switch and the PCB board for power supply, and the power interface is disposed on the sliding member and connected to the battery for charging the battery.
In one or more embodiments of the present invention, the housing includes a side wall and a torsion cover, the top of the side wall is concavely provided with a plurality of grooves, the edge of the torsion cover is convexly provided with a protrusion matching with the grooves, and the protrusion of the torsion cover can be embedded into the groove of the side wall, so that the torsion cover and the side wall can be detachably connected.
In one or more embodiments of the present invention, the housing further comprises a snap ring; the depth of the groove is larger than the thickness of the torque cover bump, an annular limiting groove is concavely arranged on the upper end of the groove on the inner wall of the side wall, and the clamping ring can be clamped in the annular limiting groove to fix the torque cover and the side wall.
In one or more embodiments of the present invention, the connecting portion is disposed on the torque cover, and the connecting portion includes a connecting groove opened on an upper end surface of the torque cover, and the connecting groove has a shape and a size matched with other general loading tools (external driving devices) such as an electric wrench, a hydraulic wrench, and the like.
In one or more embodiments of the present invention, the casing further includes a sleeve head, the sleeve head is fixedly disposed at the bottom of the sidewall, the sleeve head is axially disposed in a penetrating manner, and the accommodating cavity is formed at a lower end of the sleeve head.
In one or more embodiments of the invention, the sleeve head is provided with a ring-shaped groove, and the groove is used for matching with a fixing piece so that the sleeve head is self-locked at the bottom of the side wall.
In one or more embodiments of the present invention, the side wall has a plurality of holes for balancing air pressure difference caused by the movement of the slider and for transmitting wireless signals.
Compared with the prior art, the construction intelligent sleeve for detecting the bolt pretightening force in real time integrates the bolt screwing function and the bolt torsion and pretightening force detection function, can be used for quickly detecting when screwing the bolt and the nut, and is more convenient.
According to the construction intelligent sleeve for detecting the pretightening force of the bolt in real time, disclosed by the embodiment of the invention, through the sliding connection arrangement of the check ring and the torque cover and the sliding connection arrangement of the sliding piece and the sliding shaft sleeve, the detection of the torque force and the pretightening force of the bolt on the internal detection assembly cannot be influenced in the process of screwing the bolt by the shell.
According to the construction intelligent sleeve for detecting the pretightening force of the bolt in real time, the shell can be detachably connected through the convex block of the torque cover, the groove in the side wall and the clamping ring, and internal parts can be conveniently maintained and replaced.
The construction intelligent sleeve for detecting the pretightening force of the bolt in real time is provided with the switch and the battery, can be switched at any time in two states of detecting the torsion and the pretightening force of the bolt when only the bolt is screwed down or the bolt is screwed down, and is convenient and quick.
The construction intelligent sleeve for detecting the pretightening force of the bolt in real time adopts an electromagnetic ultrasonic nondestructive detection technology, does not need a coupling agent, does not need a stress sheet, does not need to disassemble the detected bolt, can measure and bolt simultaneously, and has high detection accuracy.
Drawings
FIG. 1 is a perspective view of an intelligent sleeve for real-time detection of bolt pretension in accordance with an embodiment of the present invention;
FIG. 2 is an exploded view of a construction smart sleeve for real-time detection of bolt pretension in accordance with an embodiment of the present invention;
FIG. 3 is a front view of a construction intelligent sleeve for real-time detection of bolt pretension in accordance with an embodiment of the present invention;
FIG. 4 isbase:Sub>A sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view of the detail D in FIG. 4;
FIG. 6 is an enlarged detail view of section E of FIG. 4;
fig. 7 is a structural view of a torque cap in a construction intelligent sleeve for detecting bolt pre-tightening force in real time according to an embodiment of the present invention;
FIG. 8 is a block diagram of a check ring in a construction intelligent sleeve for detecting bolt pre-tightening force in real time according to an embodiment of the present invention;
fig. 9 is a structural view of a slider in a construction smart sleeve for detecting bolt tightening force in real time according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 4, an embodiment of the present invention provides a construction intelligent sleeve for detecting bolt pre-tightening force in real time, which includes a housing 10, a retainer ring 20, a bearing 30, an elastic support 40, a sliding member 50, a sliding shaft sleeve 60, and a detection assembly 70. The retainer ring 20 is disposed on the inner top wall of the housing 10 and is rotatably connected with the housing 10 through a bearing 30. The sliding member 50 is movably disposed in the housing 10 and an elastic supporting member 40 is disposed between the sliding member and the retainer ring 20. The sliding sleeve 60 is disposed in the housing 10 and sleeved on the outer end of the sliding member 50. The detecting component 70 is disposed inside the sliding component 50 for detecting the torque force and the pre-tightening force of the bolt.
The housing 10 includes a side wall 11, a torsion cap 12, a snap ring 13, and a sleeve head 14. The sidewall 11 may have a cylindrical structure, and a first mounting cavity a is formed therein. The top of the side wall 11 is uniformly recessed with a plurality of grooves 111. An annular limiting groove 112 is concavely arranged on the upper end of the groove 111 on the inner wall of the side wall 11. The side wall 11 is formed with a plurality of holes for balancing the air pressure difference caused by the movement of the slider 50 in the first mounting chamber a and for transmitting wireless signals.
As shown in fig. 5 and 7, the torsion cover 12 may have a circular structure, and the diameter of the torsion cover 12 is equal to the inner diameter of the cylindrical structure formed by the side wall 11. The torque cover 12 is provided with a connecting portion 121 for connecting an external driving device, in one embodiment, the connecting portion 121 is a connecting slot opened on an upper end surface of the torque cover 12, the external driving device is connected with the torque cover 12 through the connecting slot, and is clamped in the connecting slot in the torque cover 12 to apply an external driving force to the torque cover 12 to drive the torque cover 12 to rotate. The edge of the torque cover 12 is protruded with a protrusion 122 matching with the groove 111, and the thickness of the protrusion 122 is smaller than the depth of the groove 111 and is just equal to the distance between the bottom of the groove 111 and the bottom of the limiting groove 112. The protrusion 122 of the torque cover 12 can be inserted into the groove 111 of the side wall 11, so as to detachably connect the torque cover 12 and the side wall 11.
A step part 123 is convexly arranged in the middle of the lower end surface of the torsion cover 12, a retaining ring 20 is slidably sleeved on the step part 123, and a bearing 30 is arranged between the step part 123 and the retaining ring 20. The retainer ring 20 is fixed to the outer ring of the bearing 30 with a gap formed between the retainer ring and the lower end surface of the torque cover 12, as shown in fig. 5.
In one embodiment, as shown in fig. 5 and 8, the retainer ring 20 includes a sleeve portion 21 and a blocking portion 22 formed at one end of the sleeve portion 21 and extending outward. The other end of the sleeve part slightly extends towards the axis direction of the retainer ring 20, the inner diameter of the sleeve part 21 is equal to or slightly smaller than the outer diameter of the bearing 30, and the sleeve part 21 can be in interference nested fit with the bearing 30.
As shown in fig. 2 and 4, the retaining ring 13 is an elastic ring, the outer diameter of which is slightly larger than the inner diameter of the cylindrical structure, and when the protrusion 122 of the torque cover 12 is inserted into the groove 111 of the sidewall 11, the retaining ring 13 can be engaged with the limiting groove 112 to relatively fix the torque cover 12 and the sidewall 11. The torque cap 12 is locked with the side wall 11 by the snap ring 13 and transmits an externally driven force from the torque cap 12 to the side wall 11 through the groove 111 of the side wall 11.
As shown in fig. 2 and 4, the sleeve head 14 is fixedly disposed at the bottom of the side wall 11. The sleeve head 14 is provided with a ring-shaped groove 141, and the ring-shaped groove 141 is used for matching with a fixing member (which may be a locking bolt) to make the sleeve head 14 self-lock at the bottom of the side wall 11.
The sleeve head 14 axially penetrates through the setting and the lower end of the sleeve head 14 is provided with an accommodating cavity B for placing a nut H, the accommodating cavity B can be of a regular hexagon structure, and the accommodating cavity B can be tightly matched with the nut H placed therein. The sleeve head 14 is locked to the side wall 11 and rotates with the side wall 11. As the socket head 14 rotates, the nut H on the bolt I is thereby screwed, so that the axial force on the bolt I changes.
The sliding sleeve 60 may be a cylindrical structure, and the sliding sleeve 60 is fixedly disposed on the inner wall of the side wall 11 and located at an end of the side wall 11 where the sleeve head 14 is disposed. The sliding sleeve 60 functions to support the sliding member 50 for axial movement, so that the sliding member 50 can be easily rotated and moved with respect to the side wall 11.
As shown in fig. 2, 4, 6 and 9, the sliding member 50 is disposed in the first mounting cavity a and inside the sliding sleeve 60, and is axially slidable relative to the sliding sleeve 60. The slider 50 may be a circular guide sleeve structure. A second mounting cavity C is formed in the slider 50. The upper end of the slider 50 is mounted with a contact switch 54, and when the slider 50 slides upward so that the contact switch 54 touches the stopper 20 or the step 123, the slider 50 is prevented from further moving upward. The upper edge of the slider 50 is provided with a stopper 52 projecting outward. The stopper 52 can abut against the end surface of the slide bush 60. An annular sleeve portion 53 is formed on the upper end surface of the limiting portion 52, and the sleeve portion 53 is used for sleeving the elastic abutting member 40. The sleeve portion 53 is formed in the middle of the stopper portion 52 such that the upper end surface portion of the stopper portion 52, which can be used to place some of the components in the detection assembly 70, is located inside the sleeve portion 53. The bottom center of the slider 50 is provided with a screw hole 51 matched with the probe 71 of the detecting assembly 70 for fixing and adjusting the initial position of the probe 71.
As shown in fig. 4, 5 and 6, one end of the elastic abutting element 40 is sleeved on the sleeved portion 21 of the retaining ring 20 and abuts on the stopping portion 22, and the other end is sleeved on the sleeved portion 53 of the sliding element 50 and abuts on a portion of the upper end surface of the limiting portion 52 located outside the sleeved portion 53. In one embodiment, the elastic supporting member 40 may be a spring.
As shown in fig. 2 and 4, the detecting assembly 70 includes a probe 71 and a matching transmitting and receiving circuit, a PCB 72, a switch 73, a battery 74 and a power interface 75. The probe 71, the switch 73 and the battery 74 are all disposed in the second mounting cavity C and are fixedly connected with the sliding member 50. The PCB 72 is disposed on the upper end surface of the limiting portion 52 in the sleeve portion 53, and is connected to the probe 71 for data processing and outputting detection data. The battery 74 is connected to the switch 73 and the PCB 72 for supplying power, and the battery 74 can provide power to operate the detecting assembly 70 through the control of the switch 73. The switch 73 is used for controlling whether the detection assembly 70 works or not, and when the detection assembly does not work, the switch 73 is switched off; in operation, switch 73 is open. The power interface 75 is disposed at the bottom of the sliding member 50 and connected to the battery 74 for charging the battery 74. When the battery 74 runs out of power, it is charged through the power interface 75 at the bottom of the slider 50, completing the replenishment of power. When the bolt I extends into the accommodating cavity B and contacts the probe 71, the probe 71 can be abutted against the bolt I and moves synchronously with the bolt I, the continuous change of the pretightening force of the bolt I in the process of screwing the nut H is monitored, and detection data is formed.
In one embodiment, the probe 71 is an electromagnetic ultrasonic probe, which has a certain magnetic attraction and can be adsorbed on the top of the bolt I when the bolt I initially extends into the second mounting cavity B. Specifically, when the bolt I approaches the probe 71, the probe 71 is fixed on the bolt I by suction, and the elastic holding member 40 provides a certain axial force, so that the probe 71 is always stationary relative to the bolt I. When the nut H is screwed, the sliding part 50 and the component fixed with the sliding part are lifted together in the first installation cavity A and are always in a proper working position, so that the torque and the pretightening force are finally tested, and the purpose of screwing the bolt is also fulfilled.
The axial force of the bolt I is changed due to the rotation of the nut H, so that the elongation of the bolt I in the axial direction is changed. The probe 71 is fixed to the bolt I, and outputs a corresponding circuit signal to the PCB 72 after capturing the distance change. The PCB 72 performs data processing after receiving the signal, outputs corresponding detection data (i.e., the axial stress of the bolt I and the torque borne by the bolt I), and finally transmits the detection data to an external terminal such as a mobile phone through wireless signals and the like to display the detection data to a client.
Compared with the prior art, the construction intelligent sleeve for detecting the bolt pretightening force in real time integrates the bolt screwing function and the bolt torsion and pretightening force detection function, can quickly detect when a bolt and a nut are screwed, and is more convenient.
According to the construction intelligent sleeve for detecting the pretightening force of the bolt in real time, disclosed by the embodiment of the invention, through the sliding connection arrangement of the check ring and the torque cover and the sliding connection arrangement of the sliding piece and the sliding shaft sleeve, the detection of the torque force and the pretightening force of the bolt on the internal detection assembly cannot be influenced in the process of screwing the bolt by the shell.
According to the construction intelligent sleeve for detecting the pretightening force of the bolt in real time, the shell is detachably connected through the lug of the torque cover, the groove in the side wall and the clamping ring, and internal parts are convenient to maintain and replace.
The construction intelligent sleeve for detecting the pretightening force of the bolt in real time is provided with the switch and the battery, can be switched at any time in two states of detecting the torsion and the pretightening force of the bolt when only the bolt is screwed down or the bolt is screwed down, and is convenient and quick.
The construction intelligent sleeve for detecting the pretightening force of the bolt in real time adopts an electromagnetic ultrasonic nondestructive detection technology, does not need a coupling agent, does not need a stress sheet, does not need to disassemble the detected bolt, can measure and bolt simultaneously, and has high detection accuracy.
The construction intelligent sleeve for detecting the pretightening force of the bolt in real time in the embodiment of the invention can detect the torque and the axial stress of the bolt when in use, solves the problem that the torque wrench in the market can not detect the axial force in real time, and has simple operation process and convenient use.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a construction smart sleeve of real-time detection bolt pretightning force which characterized in that includes:
the nut mounting structure comprises a shell, a nut, a first mounting cavity and a second mounting cavity, wherein the first mounting cavity is formed inside the shell, a connecting part for connecting external driving equipment is arranged at one end of the shell, and an accommodating cavity for accommodating a nut is formed at the other end of the shell;
the sliding part is arranged in the first mounting cavity and can axially slide and rotate relative to the shell, an elastic abutting part is arranged between the sliding part and the shell, and a second mounting cavity is formed in the sliding part;
a step part is convexly arranged on the top wall in the shell, a check ring is slidably sleeved on the step part, and the elastic abutting piece is arranged between the check ring and the sliding piece;
a bearing is arranged between the step part and the retainer ring, and the retainer ring is fixed on an outer ring of the bearing and forms a gap with the inner top wall of the shell;
a limiting part is formed on the upper edge of the sliding part, a sleeve part is formed on the upper end surface of the limiting part, and the sleeve part is used for sleeving the elastic abutting part; and
the detection assembly comprises a probe and a matched transmitting and receiving circuit, the probe is installed in the second installation cavity, the end face of the probe protrudes out of the bottom face of the sliding part and extends into the first installation cavity, when the end face of the bolt is in contact with the probe, the probe can be abutted against the bolt and synchronously moves along with the bolt, the continuous change of the bolt pretightening force in the nut screwing process is monitored, and detection data are formed.
2. The construction intelligent sleeve for detecting the pretightening force of the bolt as claimed in claim 1, further comprising a sliding shaft sleeve, wherein the sliding shaft sleeve is fixed on the inner wall of the first installation cavity, and the sliding member is embedded in the sliding shaft sleeve and can slide and rotate axially along the sliding shaft sleeve.
3. The construction intelligent sleeve for detecting the pretightening force of the bolt as claimed in claim 2, wherein a limiting part is formed on the upper edge of the sliding part, and the limiting part can abut against the end face of the sliding shaft sleeve.
4. The construction intelligent sleeve for detecting the bolt pretightening force in real time as claimed in claim 3, wherein a contact switch is installed at the upper end of the sleeve part of the sliding member, and the contact switch is used for limiting the limit position of the upward movement of the sliding member.
5. The construction intelligent sleeve for detecting bolt pretightening force in real time as claimed in claim 1, wherein said detection assembly further includes a PCB board, a switch, a battery and a power interface disposed in the second mounting cavity of the sliding member, said PCB board is connected to said probe for data processing and outputting detection data, said battery is connected to said switch and said PCB board for supplying power, said power interface is disposed on said sliding member and connected to said battery for charging the battery.
6. The construction intelligent sleeve for detecting the pretightening force of the bolt as claimed in claim 1, wherein the housing includes a side wall and a torque cover, the top of the side wall is concavely provided with a plurality of grooves, the edge of the torque cover is convexly provided with a convex block matched with the grooves, and the convex block of the torque cover can be embedded into the grooves of the side wall, so that the torque cover and the side wall can be detachably connected.
7. The construction intelligent sleeve for detecting the bolt pretightening force in real time according to claim 6, wherein the shell further comprises a snap ring; the depth of the groove is larger than the thickness of the torque cover bump, an annular limiting groove is concavely arranged on the upper end of the groove on the inner wall of the side wall, and the clamping ring can be clamped in the annular limiting groove to fix the torque cover and the side wall.
8. The construction intelligent sleeve for detecting the bolt pretightening force in real time as claimed in claim 6, wherein the connecting portion is arranged on the torque cover, the connecting portion comprises a connecting groove arranged on the upper end surface of the torque cover, and the connecting groove is matched with an external driving device in shape and size.
9. The construction intelligent sleeve for detecting the bolt pretightening force in real time as claimed in claim 6, wherein the housing further comprises a sleeve head, the sleeve head is fixedly arranged at the bottom of the side wall, the sleeve head axially penetrates through the sleeve head, and the accommodating cavity is formed at the lower end of the sleeve head; and/or the presence of a gas in the gas,
the sleeve head is provided with a ring-shaped groove, and the groove is used for being matched with a fixing piece to enable the sleeve head to be self-locked at the bottom of the side wall.
10. The construction intelligent sleeve for detecting the pretightening force of the bolt as claimed in claim 6, wherein a plurality of holes are formed on the sidewall, and the holes are used for balancing air pressure difference caused by the movement of the sliding member and transmitting wireless signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111672600.9A CN114260850B (en) | 2021-12-31 | 2021-12-31 | Construction intelligent sleeve for detecting bolt pretightening force in real time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111672600.9A CN114260850B (en) | 2021-12-31 | 2021-12-31 | Construction intelligent sleeve for detecting bolt pretightening force in real time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114260850A CN114260850A (en) | 2022-04-01 |
| CN114260850B true CN114260850B (en) | 2023-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111672600.9A Active CN114260850B (en) | 2021-12-31 | 2021-12-31 | Construction intelligent sleeve for detecting bolt pretightening force in real time |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1578724A (en) * | 1977-04-15 | 1980-11-05 | Gkn Fasteners Ltd | Method of tightening a nut and bolt assembly and wrench apparatus for performing the method |
| CN2516299Y (en) * | 2002-01-30 | 2002-10-16 | 周文华 | Clamping head of closefisted drill |
| US8671804B2 (en) * | 2012-01-16 | 2014-03-18 | Michael Edward Galat | Fastener installation tool with quick change key |
| CN108181037B (en) * | 2017-11-20 | 2019-12-13 | 上海宏予测试仪器有限公司 | Pre-tightening force measuring device for threaded fastener of oil pipe joint |
| CN109333424A (en) * | 2018-12-17 | 2019-02-15 | 石家庄中博汽车有限公司 | A kind of adaptive sleeve and spanner |
| CN112873114A (en) * | 2019-11-29 | 2021-06-01 | 中国航天标准化研究所 | Signal sleeve and tightening tool |
| CN111649860B (en) * | 2020-07-08 | 2021-08-31 | 中国工程物理研究院总体工程研究所 | Portable bolt installation pretightning force test sleeve |
| CN212988676U (en) * | 2020-09-09 | 2021-04-16 | 智沪铁路设备有限公司 | Novel torque detection device |
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2021
- 2021-12-31 CN CN202111672600.9A patent/CN114260850B/en active Active
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| CN114260850A (en) | 2022-04-01 |
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