CN220622415U - Safety bolt capable of observing tightness - Google Patents
Safety bolt capable of observing tightness Download PDFInfo
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- CN220622415U CN220622415U CN202322230648.5U CN202322230648U CN220622415U CN 220622415 U CN220622415 U CN 220622415U CN 202322230648 U CN202322230648 U CN 202322230648U CN 220622415 U CN220622415 U CN 220622415U
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- bolt
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- thimble
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 27
- 230000005484 gravity Effects 0.000 claims abstract description 18
- 230000009471 action Effects 0.000 abstract description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The application discloses a safety bolt capable of observing tightness, which comprises a bolt and a tightness observation component; the bolt comprises a hexagonal nut and a screw rod; the outer end surface of the hexagonal nut is provided with an annular groove, and a through hole is formed along the axis of the screw rod; the tightness observation assembly comprises a thimble, a marking disc and a gravity pointer; the thimble comprises a pier head, a penetrating rod and a bulging head; the marking disc comprises a gasket, a marking block and a thin-wall circular ring, and the thin-wall circular ring is embedded in the annular groove; the gravity pointer comprises a pointer and a pointer ring; after the bolt is screwed in place, the marking disc is manually adjusted, the marking disc is arranged on the end face of the bolt, the synchronous bolt rotation action of the marking disc is ensured, in addition, the through bolt is inserted into a thimble, the inner end of the thimble is independently connected with the inner wall of the bolt hole, the thimble is not rotated when the bolt is loose or is excessively screwed, the gravity pointer is sleeved on the thimble, the gravity pointer is directed downwards, and whether the bolt is loose or not can be determined by observing the gravity pointer and the marking block.
Description
Technical Field
The application belongs to the technical field of connecting piece structures, and particularly relates to a safety bolt capable of observing tightness.
Background
The bolt is a connecting part frequently used in a structural member and consists of a nut and a screw rod, the screw rod is screwed between two adjacent parts, the nut is stopped and exposed on the surface of one part, and the nut can be screwed forward or backward by a spanner to realize locking or dismounting of the bolt;
in some special application scenes, such as heavy lifting machinery for ports, ocean wind power and the like, large-size bolts are needed, the bolts are extremely stressed and are required to be assembled strictly according to characteristic torsion, and serious accidents are possibly caused due to the fact that the connection strength is reduced due to loosening or excessive tightening, so that special staff is required to regularly check the tightness of the bolts, the existing practice is to use marker pens to mark lines on the bolts and mounting stations, and the bolts can be judged to be loosened if the threading lines are misplaced when the bolts are checked next time;
the method can only be used for judging the loosening degree in a short period, and due to the existence of environmental pollution, the non-neutral rainwater is extremely easy to corrode the marking line, and particularly in the coastal port and ocean wind power fields, the marking line can not disappear in a short period, and when the inspection is carried out next time, a technician can directly re-mark or mark after re-tightening through a hydraulic wrench, and the re-tightening also can possibly cause excessive bolt tightening, the inside is damaged, and potential safety hazards exist.
Disclosure of Invention
The utility model aims at providing a but safety bolt of survey elasticity, screw up the back in place at the bolt, manual adjustment marking disc, and install marking disc in the bolt terminal surface, ensure marking disc synchronous bolt rotary motion, insert a thimble in addition through bolt, this thimble inner independent connection is in the bolt hole inner wall, this can ensure that the bolt appears becoming flexible or screw up when excessively the thimble does not follow the commentaries on classics, cup joint the gravity pointer on the thimble, the directional orientation of gravity pointer is to the below, can confirm whether the bolt appears becoming flexible with the help of the observation of gravity pointer and marking block.
In order to solve the technical problem that the bolt tightness is inconvenient to check in the prior art, the application provides a safety bolt capable of observing tightness, which comprises a bolt and a tightness observation component;
the bolt comprises a hexagonal nut and a screw rod; the outer end face of the hexagonal nut is provided with an annular groove, the outer end face of the screw is integrally formed on the inner end face of the hexagonal nut, a through hole is formed along the axis of the screw, and the through hole penetrates through the inner end face of the screw and the outer end face of the hexagonal nut;
the tightness observation assembly comprises a thimble, a marking disc and a gravity pointer; the thimble comprises a pier head, a penetrating rod and a bulging head, the penetrating rod penetrates through the penetrating hole, the pier head is arranged at the outer end of the penetrating rod, and the bulging head is arranged at the inner end of the penetrating rod; the marking disc comprises a gasket, a marking block and a thin-wall circular ring, the gasket is movably sleeved on the penetrating rod, the marking block is attached to the front surface of the gasket, the thin-wall circular ring is fixed on the back surface of the gasket, and the thin-wall circular ring is embedded in the annular groove; the gravity pointer comprises a pointer and a pointer ring, the pointer is radially arranged on the outer annular wall of the pointer ring along the pointer ring, and the pointer ring is movably sleeved on the penetrating rod.
Further, the application provides a safety bolt of observable elasticity, wherein, the head that expands is hollow and evenly opens along circumference.
Further, the application provides a safety bolt capable of observing tightness, wherein the thin-wall circular ring is evenly opened along the circumference.
Further, the application provides a safety bolt capable of observing tightness, wherein the section diameter of the thin-wall circular ring is larger than the depth of the annular groove, the outer diameter of the thin-wall circular ring is smaller than the outer groove wall diameter of the annular groove, and the inner diameter of the thin-wall circular ring is larger than the inner groove wall diameter of the annular groove.
Further, the application provides a but safety bolt of survey elasticity, wherein, the mark piece is including not hard up mark and too tight mark, not hard up mark with the tight mark symmetry set up in the gasket is positive, the observation hole is seted up to the pointer, the observation hole side sets up torsion value scale.
Further, the application provides a but safety bolt of survey elasticity wherein, still includes the balancing weight, the balancing weight install in the pointer ring.
Compared with the prior art, the safety bolt with the observable tightness has the following advantages: after the bolt is screwed in place, the marking disc is manually adjusted, the loose mark and the observation hole of the pointer are aligned at the center of the overtightening mark are mainly controlled, then the marking disc is installed on the end face of the bolt, the synchronous bolt rotation action of the marking disc is ensured, in addition, a thimble is inserted into the through bolt, the inner end of the thimble is independently connected with the inner wall of the bolt hole, the thimble is not rotated when the bolt is loose or is excessively screwed, the gravity pointer is sheathed on the thimble, the gravity pointer is directed downwards, and whether the bolt is loose can be determined by observing the gravity pointer and the marking block.
Drawings
FIG. 1 is a schematic diagram of a safety bolt with observable tightness;
FIG. 2 is a schematic diagram of the alternate position structure of FIG. 1;
FIG. 3 is an exploded view of the structure of FIG. 1;
FIG. 4 is a schematic diagram of a safety bolt transformation state structure with observable tightness;
fig. 5 is an exploded view of the structure of fig. 4.
Wherein: 1. a hexagonal nut; 2. a screw; 3. an annular groove; 4. a through hole; 5. pier heads; 6. a penetrating rod; 7. expanding the head; 8. a gasket; 9. a thin-walled ring; 10. a pointer; 11. a pointer ring; 12. balancing weight; 13. loosening a mark; 14. overtightening the mark; 15. and (5) observing the hole.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 5, the present embodiment provides a safety bolt capable of observing tightness, which includes a bolt and a tightness observing component;
the bolt comprises a hexagonal nut 1 and a screw rod 2; an annular groove 3 is formed in the outer end face of the hexagonal nut 1, the outer end face of the screw rod 2 is integrally formed in the inner end face of the hexagonal nut 1, a through hole 4 is formed along the axis of the screw rod 2, and the through hole 4 penetrates through the inner end face of the screw rod 2 and the outer end face of the hexagonal nut 1;
the tightness observation assembly comprises a thimble, a marking disc and a gravity pointer; the thimble comprises a pier head 5, a penetrating rod 6 and a bulging head 7, wherein the penetrating rod 6 penetrates through the penetrating hole 4, the pier head 5 is arranged at the outer end of the penetrating rod 6, the bulging head 7 is arranged at the inner end of the penetrating rod 6, the bulging head 7 is hollow and uniformly opened along the circumference, and the purpose is to facilitate flattening and expanding of the bulging head 7, and the extrusion acting force can firstly bend a thin wall part among a plurality of openings; the marking disc comprises a gasket 8, a marking block and a thin-wall circular ring 9, wherein the gasket 8 is movably sleeved on the penetrating rod 6, the marking block is attached to the front surface of the gasket 8, the thin-wall circular ring 9 is fixed on the back surface of the gasket 8, the thin-wall circular ring 9 is embedded in the annular groove 3, the thin-wall circular ring 9 is uniformly opened along the circumference, the purpose of the thin-wall circular ring 9 is similar to that of a circumferential opening of a collision head, the purpose is convenient for flattening and expanding, the thin-wall circular ring 9 is beneficial for being reliably clamped and embedded in the annular groove 3, the diameter of the cross section of the thin-wall circular ring 9 is larger than the depth of the annular groove 3, the outer diameter of the thin-wall circular ring 9 is smaller than the diameter of the outer groove wall of the annular groove 3, and the inner diameter of the thin-wall circular ring 9 is larger than the diameter of the inner groove wall of the annular groove 3; the gravity pointer comprises a pointer 10, a pointer ring 11 and a balancing weight 12, wherein the pointer 10 is radially arranged on the outer ring wall of the pointer ring 11 along the pointer ring 11, the pointer ring 11 is movably sleeved on the penetrating rod 6, and the balancing weight 12 is arranged on the pointer ring 11 and is used for ensuring that the pointer 10 is vertically downward;
as a preferable scheme of this embodiment, the marking block includes a loosening mark 13 and an overtightening mark 14, where the loosening mark 13 and the overtightening mark 14 are symmetrically disposed on the front surface of the gasket 8, the pointer 10 is provided with an observation hole 15, and a torsion value scale is disposed on the side surface of the observation hole 15; when the bolt is loosened, the loosening standard 13 rotates, the loosening standard 13 can be observed through the observation hole 15, and the loosening degree is checked, and when the bolt gel is excessive, the overtightening standard 14 can be observed through the observation hole 15, and the overtightening degree is checked.
The installation process and principle of the safety bolt capable of observing tightness provided by the embodiment are as follows: the bolts are screwed in the bolt holes by means of a hydraulic wrench and a torsion measuring instrument, the marking disc is tightly attached to the outer end face of the hexagonal nut 1, the thin-wall ring 9 is enabled to be embedded in the annular groove 3, meanwhile, the angle of the gasket 8 is adjusted, the loose gauge 13 and the overtightening gauge 14 are enabled to be located below, the gasket 8 is hammered by means of the rubber hammer, in the hammering process, the thin-wall ring 9 is extruded by the gasket 8 and the groove bottom of the annular groove 3, the thin-wall ring 9 radially expands outwards along the opening position until the expanded thin-wall ring 9 is tightly clamped between the groove walls of the annular groove 3, the marking disc is mounted, finally, the pointer ring 11 is sleeved on the penetrating rod 6, the inner end of the penetrating rod 6 is inserted into the penetrating hole 4 until the expansion gauge 7 abuts against the hole bottom of the bolt hole, the expansion gauge 7 receives extrusion of the inner end of the thimble and the bottom of the bolt hole by means of the rubber hammer 5, the expansion gauge 7 outwards expands along the opening position until the outer side wall of the expanded expansion gauge 7 abuts against the side wall of the bolt hole, at the moment, the pointer 10 sleeved on the penetrating rod 6 freely points to the ground under the action of gravity of the balancing weight 12, after the bolts are loosened, the loose gauge 13 can rotate, the degree of observing the pointer 15 can be observed through the observation hole 15, and the degree of the excessive looseness is observed through the observation hole, and the degree of the bolt is observed through the observation hole is excessively tight, and the degree is observed when the bolt is observed.
Finally, what is to be described is: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the examples, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (6)
1. The safety bolt capable of observing tightness is characterized by comprising a bolt and a tightness observation component;
the bolt comprises a hexagonal nut and a screw rod; the outer end face of the hexagonal nut is provided with an annular groove, the outer end face of the screw is integrally formed on the inner end face of the hexagonal nut, a through hole is formed along the axis of the screw, and the through hole penetrates through the inner end face of the screw and the outer end face of the hexagonal nut;
the tightness observation assembly comprises a thimble, a marking disc and a gravity pointer; the thimble comprises a pier head, a penetrating rod and a bulging head, the penetrating rod penetrates through the penetrating hole, the pier head is arranged at the outer end of the penetrating rod, and the bulging head is arranged at the inner end of the penetrating rod; the marking disc comprises a gasket, a marking block and a thin-wall circular ring, the gasket is movably sleeved on the penetrating rod, the marking block is attached to the front surface of the gasket, the thin-wall circular ring is fixed on the back surface of the gasket, and the thin-wall circular ring is embedded in the annular groove; the gravity pointer comprises a pointer and a pointer ring, the pointer is radially arranged on the outer annular wall of the pointer ring along the pointer ring, and the pointer ring is movably sleeved on the penetrating rod.
2. The safety bolt of claim 1, wherein the expansion head is hollow and uniformly circumferentially open.
3. The safety bolt of claim 1, wherein the thin-walled ring is uniformly circumferentially open.
4. The safety bolt of claim 1, wherein the cross-sectional diameter of the thin-walled ring is greater than the depth of the annular groove, the outer diameter of the thin-walled ring is less than the outer groove wall diameter of the annular groove, and the inner diameter of the thin-walled ring is greater than the inner groove wall diameter of the annular groove.
5. The safety bolt with the observable tightness of claim 1 wherein the marking block comprises a loosening mark and an overtightening mark, the loosening mark and the overtightening mark are symmetrically arranged on the front surface of the gasket, the pointer is provided with an observation hole, and torsion value scales are arranged on the side surface of the observation hole.
6. The safety bolt of claim 1, further comprising a weight mounted to the pointer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230648.5U CN220622415U (en) | 2023-08-18 | 2023-08-18 | Safety bolt capable of observing tightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322230648.5U CN220622415U (en) | 2023-08-18 | 2023-08-18 | Safety bolt capable of observing tightness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220622415U true CN220622415U (en) | 2024-03-19 |
Family
ID=90216568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322230648.5U Active CN220622415U (en) | 2023-08-18 | 2023-08-18 | Safety bolt capable of observing tightness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220622415U (en) |
-
2023
- 2023-08-18 CN CN202322230648.5U patent/CN220622415U/en active Active
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| GR01 | Patent grant |