CN209146102U - A kind of ring bolt - Google Patents
A kind of ring bolt Download PDFInfo
- Publication number
- CN209146102U CN209146102U CN201821512147.9U CN201821512147U CN209146102U CN 209146102 U CN209146102 U CN 209146102U CN 201821512147 U CN201821512147 U CN 201821512147U CN 209146102 U CN209146102 U CN 209146102U
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- CN
- China
- Prior art keywords
- bolt
- screw rod
- polished rod
- threaded portion
- annular slot
- Prior art date
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Abstract
The utility model discloses a kind of ring bolts, including bolt head, screw rod, the screw rod includes polished rod portion, threaded portion, and the smooth one end of the rod is connect with bolt head, the threaded portion is arranged around polished rod portion circumferential surface, is provided with the first annular slot that threaded portion is divided into several segments in the polished rod portion.Plain bolt is overcome by way of first annular slot is arranged on screw rod to be difficult to that the installation effectiveness for improving worker is truncated by simple tool, and the second annular groove is set in first annular slot, then further simplify the step of changing spiro rod length, i.e. by simply using pliers or other fixtures, that is, broken screw rod, the installation effectiveness of worker is greatly improved.
Description
Technical field
The utility model designs fastener areas, especially a kind of ring bolt.
Background technique
Bolt is widely used in production and living as a kind of inexpensive fastener being simple and efficient.It is led in finishing
Domain needs to connect each of door lock by bolt if when installing door lock there is also largely being fastened using bolt
Component, but because existing door is much non-standard, thickness disunity causes the bolt for connecting door lock cannot be by door lock
It is fastened on door, and this kind of situation can only adapt to the thickness of door by changing the length of bolt, and the screw rod of plain bolt is strong
It spends larger, it is desirable to it is more difficult to change length in such a way that screw rod is truncated in pliers, and during screw rod is truncated also
It is easily damaged screw thread, causes bolt is subsequent to be difficult to be screwed into matched screw hole and ineffective, and is changed by other tool
The length for becoming bolt can then reduce installation effectiveness, increase production cost.
Utility model content
The purpose of this utility model is to provide one kind in the case where not increasing the too many workload of worker, can be convenient and fast
Change bolt length to adapt to the ring screw of the door of different-thickness.
In order to solve the above technical problems, the technical solution of the utility model are as follows:
A kind of ring bolt, including bolt head, screw rod, the screw rod include polished rod portion, threaded portion, the smooth one end of the rod
Connect with bolt head, the threaded portion is arranged around polished rod portion circumferential surface, be provided in the polished rod portion threaded portion is divided into it is several
The first annular slot of section.The first annular slot being arranged on polished rod reduces the intensity of its position screw rod, to facilitate
Screw rod is truncated here by pliers by worker.
Further, the groove width of the first annular slot is equal to 3 times of standard pitch.
Further, the second annular groove is provided in the first annular slot.The setting of second annular groove is further dropped
The intensity in low bolt light rod portion, place where it, be allowed to only need to by bending can by bolt at this this section, and second is annular
Slot is arranged so that being able to maintain more smooth section when bolt fracture.
Further, the screw rod Parallel Symmetric is provided with cross section.The setting of cross section so that pliers in the spiral shell that fractures
Screw thread can be avoided when bolt, to play the role of protecting screw thread, enable to keep integrality.
Further, the second annular groove groover rot diameter is the 2/3 of polished rod portion outer peripheral surface diameter.
The utility model has the following beneficial effects: being effectively reduced by the way that annular groove is arranged in the polished rod portion of bolt screw rod
Intensity of the bolt at annular groove, facilitates the truncation of bolt, so that worker is in energy in the case where paying heavy workload
Bolt is changed to required length, greatly improves working efficiency, and the production method of this bolt is simple, it is low in cost.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the left view of the utility model；
Fig. 4 is the top view of Fig. 2.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of ring bolt as shown in Fig. 1 ~ 4 includes mainly bolt head 1 and screw rod 2, opens up in one end of bolt head 1
There is cross recess；Screw rod 2 divides the polished rod portion 21 being connected for one end with bolt head 1, and the shape in polished rod portion is a smooth cylindrical body,
Threaded portion 22 is provided on the outer peripheral surface in polished rod portion 21, it is known that the screw thread of threaded portion is continuous thread.In 21 circumferential surface of polished rod portion
On be provided with n(n >=1) a first annular slot 211, in the region for being equipped with first annular slot, the maximum for the circle that slot bottom is formed is straight
Diameter is less than the diameter of the outer peripheral surface in polished rod portion；Distribution situation of the first annular slot 211 in polished rod portion is along polished rod portion axis
The screw thread on threaded portion is divided at least n+1 sections to uniform distribution, and therefore, and because the screw thread of threaded portion is continuous spiral shell
Line, so even if nut still smooth can be screwed on bolt, it is preferred that first annular after by the segmentation of first annular slot 211
The groove width of slot be equal to standard bolt screw pitch away from 3 times.
And for more convenient broken bolt, on the basis of first annular slot 211, it is additionally provided with positioned at first annular
The second annular groove 212 in slot 211, the second annular groove further reduces the diameter in position polished rod portion, and then reduces
The intensity in the position polished rod portion, so that bolt only need to be by applying a moment of flexure to the second annular groove 212 position two sides
The end face that screw rod can be fractureed, and fractureed is also retainable more smooth, it is preferred that diameter is big at the second annular groove slot bottom
Small is the 2/3 of polished rod portion outer peripheral surface diameter, which both ensure that the certain tension shearing strength of bolt, can make bolt
It can conveniently be fractureed when being bent by external force.
In order to be able to maintain the intact degree of bolt thread portion screw thread in broken bolt, it is provided in threaded shank conveniently
Such as the fixed cross section 23 of pliers fixture, cross section are intersected with polished rod portion 21 and threaded portion 22, and form a relative completion
Rectangular cross-sectional, and cross section is symmetrical and parallel setting on screw rod, it is preferred that the spacing between two cross sections is
The 4/5 ~ 2/3 of bolt light rod portion diameter.
Claims (5)
1. a kind of ring bolt, it is characterised in that: including bolt head, screw rod, the screw rod includes polished rod portion, threaded portion, described
Light one end of the rod is connect with bolt head, and the threaded portion is arranged around polished rod portion circumferential surface, is provided in the polished rod portion by threaded portion
It is divided into the first annular slot of several segments.
2. ring bolt as described in claim 1, it is characterised in that: the groove width of the first annular slot is equal to standard pitch
3 times.
3. ring bolt as claimed in claim 1 or 2, it is characterised in that: be provided with the second annular in the first annular slot
Slot.
4. ring bolt as claimed in claim 3, it is characterised in that: the second annular groove groover rot diameter is polished rod portion periphery
The 2/3 of face diameter.
5. ring bolt as claimed in claim 3, it is characterised in that: Parallel Symmetric is provided with cross section on the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512147.9U CN209146102U (en) | 2018-09-14 | 2018-09-14 | A kind of ring bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512147.9U CN209146102U (en) | 2018-09-14 | 2018-09-14 | A kind of ring bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209146102U true CN209146102U (en) | 2019-07-23 |
Family
ID=67267097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821512147.9U Active CN209146102U (en) | 2018-09-14 | 2018-09-14 | A kind of ring bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209146102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915214A (en) * | 2020-07-07 | 2022-01-11 | 国山石材企业有限公司 | Anti-falling reverse hanging screw for stone and mounting method thereof |
-
2018
- 2018-09-14 CN CN201821512147.9U patent/CN209146102U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113915214A (en) * | 2020-07-07 | 2022-01-11 | 国山石材企业有限公司 | Anti-falling reverse hanging screw for stone and mounting method thereof |
| CN113915214B (en) * | 2020-07-07 | 2023-03-24 | 国山石材企业有限公司 | Anti-falling reverse hanging screw for stone and mounting method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |