CN207848147U - Ring-groove-type fastener - Google Patents
Ring-groove-type fastener Download PDFInfo
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- CN207848147U CN207848147U CN201721652591.6U CN201721652591U CN207848147U CN 207848147 U CN207848147 U CN 207848147U CN 201721652591 U CN201721652591 U CN 201721652591U CN 207848147 U CN207848147 U CN 207848147U
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Abstract
The utility model provides a kind of ring-groove-type fastener, and ring-groove-type fastener includes ring-grooved rivet and annular groove riveting set, and ring-grooved rivet includes screw rod and spacing head, and screw rod is divided into cooperation section, locking section and breaks section in an axial direction；It is smooth surface to coordinate the peripheral surface of section, and the peripheral surface of section and the inner peripheral surface of the mounting hole of workpiece is coordinated to match, and the length of section is coordinated to be not more than the length of the mounting hole of workpiece；The peripheral surface of locking section is equipped with multiple locking slots, and annular groove riveting set is sleeved in locking section and is squeezed into multiple locking slots under the action of extruding force；The peripheral surface for breaking section breaks slot equipped with multiple, and multiple slots of breaking are matched with the rotary head of installation rifle；Spacing head is fixedly connected with screw rod close to the end of cooperation section, and the outer diameter of spacing head is more than the outer diameter of screw rod.The ring-groove-type fastener, has high intensity clamping force and a shockproof function, never becoming loose, have it is easy for installation, be widely used, many advantages such as later maintenance cost is low.
Description
Technical field
The utility model is related to a kind of ring-groove-type fasteners.
Background technology
With the continuous growth of China's economic strength, mating infrastructure is also more and more perfect, railway, bridge etc. some
Main facilities are also increasing.Fastener is commonly used to as a kind of connector in these facilities.Wherein, high-strength bolt
Auxiliary connection is most common fastener, and general its uses calibrated wrench method to construct, and construction torque is calculated by torque coefficient.But factory goes out
The torque coefficient batch deviation of factory, construction personnel smear uniformity, the trueness error for installing torque wrench and the construction of lubricating grease
The factors such as environment can all influence the final pretightning force of auxiliary connection, and it is super stubborn or owe stubborn problem often to will appear bolt connection pair.Separately
Outside, when bolt connection pair is pre- next in dynamic loading, such as the environment that railway, bridge, wind-powered electricity generation the power generation vibrations frequency are more
In, it is easy to it loosens, and bolt easy tos produce impact fatigue after owing to twist, loosening, this is also lead to bolt fracture main
Reason.Why in this way, these facilities need to often detect maintenance, later maintenance cost is higher, but still can not prevent bolt looseness
The hidden danger of fracture.Therefore, large-scale for these, important, usually more difficult maintenance facilities, need to seek one kind can to facilitate
Meet fastening requirements, and the fastener that will not be loosened solves above-mentioned hidden danger.
Utility model content
Technical problem to be solved in the utility model be in order to overcome it is in the prior art lack for main facilities,
The defect for meeting the fastener that fastening requirements will not loosen again can be facilitated, and a kind of ring-groove-type fastener is provided.
The utility model solves above-mentioned technical problem by the following technical programs：
The utility model provides a kind of ring-groove-type fastener, and the ring-groove-type fastener includes ring-grooved rivet and annular groove riveting
Set, the ring-grooved rivet include screw rod and spacing head, and the screw rod is divided into cooperation section, locking section and breaks section in an axial direction；It is described
It is smooth surface to coordinate the peripheral surface of section, and the peripheral surface of the cooperation section is matched with the inner peripheral surface of the mounting hole of workpiece, described
The length of section is coordinated to be not more than the length of the mounting hole of the workpiece；The peripheral surface of the locking section is equipped with multiple locking slots, institute
Annular groove riveting set is stated to be sleeved in the locking section and squeeze under the action of extruding force in multiple locking slots；The section broken
Peripheral surface breaks slot equipped with multiple, and multiple slots of breaking are matched with the rotary head of installation rifle；The spacing head and the spiral shell
Bar is fixedly connected close to the end of the cooperation section, and the outer diameter of the spacing head is more than the outer diameter of the screw rod.
In the technical scheme, the ring-groove-type fastener of above structure has high intensity clamping force and shockproof function, never
Loosen, can substitute conventional bolt and nut, and without consider installation equipment error, product torque coefficient deviation etc. influence because
Element, have it is easy for installation, be widely used, many advantages such as later maintenance cost is low.
Preferably, the locking slot is the circumferentially disposed cyclic annular straight trough around the screw rod.
In the technical scheme, the design of the shape of above-mentioned locking slot can reach best fastening effect.
Preferably, the tooth number of the locking slot is 18~20 teeth.
In the technical scheme, the design of the tooth number of above-mentioned locking slot, can reach best fastening effect.
Preferably, the slot of breaking is around the circumferentially disposed of the screw rod, the section for breaking slot is trapezoidal.
In the technical scheme, the design of the above-mentioned shape for breaking slot, it is ensured that installation rifle to break slot be applied to it is suitable
When pulling force when break slot fracture, to control installation rifle to annular groove riveting set apply extruding force size, ensure annular groove riveting set
While being expressed to completely in the locking slot of locking section, unnecessary deformation not will produce.
Preferably, the tooth number for breaking slot is no less than 22 teeth.
In the technical scheme, the design of the above-mentioned tooth number for breaking slot, it is ensured that installation rifle to break slot be applied to it is suitable
When pulling force when break slot fracture, to control installation rifle to annular groove riveting set apply extruding force size, ensure annular groove riveting set
While being expressed to completely in the locking slot of locking section, unnecessary deformation not will produce.
Preferably, the spacing head is circle, the radius in the section of the spacing head along the radial section of the screw rod
It is gradually reduced along the direction far from the screw rod.
In the technical scheme, the spacing head of above-mentioned shape, it is fairly simple in process, it is easily worked.
Preferably, the spacing head includes protruding ring and head, the protruding ring is located at the head and the screw rod
Between end, the peripheral surface of the protruding ring is seamlessly transitted to the peripheral surface on the head, in the peripheral surface of the protruding ring
Portion is projected radially outward along the screw rod, and the head is circle along the radial section of the screw rod, and the head is cut
The radius in face is gradually reduced along the direction far from the screw rod.
In the technical scheme, the spacing head of above-mentioned shape can save material while proof strength.
Preferably, peripheral surface of the screw rod close to the end of the cooperation section is equipped with locking screw, the spacing head is
Lock sleeve, the lock sleeve are sleeved on the end of the screw rod and are connect with the end thread of the screw rod.
In the technical scheme, it using the ring-groove-type fastener of the present embodiment, can solve in the case where space is inadequate
The clamping problems of workpiece.
Preferably, the end face that the spacing head is in contact with the workpiece is equipped with a plurality of anti-slip tank, a plurality of anti-slip tank
Around the circumferentially disposed of the screw rod.
In the technical scheme, when spacing head is in contact with workpiece, anti-slip tank can increase between spacing head and workpiece
Frictional force ensures clamping force of the ring-groove-type fastener to workpiece.
Preferably, the hardness of the inner peripheral surface of the annular groove riveting set is HRB65~73.
In the technical scheme, the range setting of the hardness of the inner peripheral surface of annular groove riveting set, it is ensured that annular groove riveting set can be completely
It is expressed in the locking slot of locking section.
On the basis of common knowledge of the art, above-mentioned each optimum condition, can arbitrarily combine to get the utility model respectively compared with
Good example.
The positive effect of the utility model is：
There is the ring-groove-type fastener high intensity clamping force and shockproof function, never becoming loose can substitute conventional bolt
Nut, and without considering installation equipment error, the influence factors such as product torque coefficient deviation, have it is easy for installation, be widely used,
The low equal many advantages of later maintenance cost.
Description of the drawings
Fig. 1 is the structural schematic diagram of the first embodiment of the utility model ring-groove-type fastener.
Fig. 2 is the structural schematic diagram of the ring-grooved rivet of ring-groove-type fastener shown in FIG. 1.
Fig. 3 is the partial enlarged view of ring-grooved rivet shown in Fig. 2.
Fig. 4 is the structural schematic diagram of second of embodiment of the utility model ring-groove-type fastener.
Fig. 5 is the structural schematic diagram of the ring-grooved rivet of ring-groove-type fastener shown in Fig. 4.
Fig. 6 is the partial enlarged view of ring-grooved rivet shown in fig. 5.
Fig. 7 is the structural schematic diagram of the third embodiment of the utility model ring-groove-type fastener.
Fig. 8 is the structural schematic diagram of the ring-grooved rivet of ring-groove-type fastener shown in Fig. 7.
Fig. 9 is the partial enlarged view of ring-grooved rivet shown in Fig. 8.
Reference sign
Ring-grooved rivet 1
Screw rod 11
Coordinate section 111
Locking section 112
Break section 113
Spacing head 12
Protruding ring 121
Head 122
Anti-slip tank 123
Lock sleeve 124
Annular groove riveting set 2
Workpiece 200
Mounting hole 201
Specific implementation mode
The utility model is further illustrated below by the mode of embodiment, but is not therefore limited in the utility model
Among the embodiment described range.
As shown in Figures 1 to 9, the utility model ring-groove-type fastener includes ring-grooved rivet 1 and annular groove riveting set 2, annular groove riveting
Nail 1 includes screw rod 11 and spacing head 12.Wherein, screw rod 11 is divided into cooperation section 111, locking section 112 and breaks section 113 in an axial direction；
It is smooth surface to coordinate the peripheral surface of section 111, and the inner peripheral surface of the peripheral surface of section 111 and the mounting hole 201 of workpiece 200 is coordinated to match
It closes, the length of cooperation section 111 is not more than the length of the mounting hole 201 of workpiece 200；The peripheral surface of locking section 112 is equipped with multiple locks
Tight slot, annular groove riveting set 2 are sleeved in locking section 112 and are squeezed into multiple locking slots under the action of extruding force；Break the outer of section 113
Circumferential surface breaks slot equipped with multiple, and multiple slots of breaking are matched with the rotary head of installation rifle；Spacing head 12 is with screw rod 11 close to cooperation
The end of section 111 is fixedly connected, and the outer diameter of spacing head 12 is more than the outer diameter of screw rod 11.
When above-mentioned ring-groove-type fastener clamps workpiece 200, screw rod 11 is first passed through to the mounting hole 201 of workpiece 200, annular groove riveting
Set 2 is sleeved in locking section 112, at this point, annular groove riveting set 2 and spacing head 12 are located at the both ends of the mounting hole 201 of workpiece 200.
The rotary head for installing rifle is matched with section 113 is broken again, installation rifle, which starts to drive, breaks the rotation of section 113, that is, drives annular groove riveting
Nail 1 rotates integrally.In 1 rotary course of ring-grooved rivet, annular groove riveting set 2 gradually squeezes workpiece 200, until breaking the drawing of section 113
Fault trough is broken, at this point, the annular groove riveting set of interior smooth 2 can be completely expressed in the locking slot of locking section 112, annular groove riveting set 2 with
Ring-grooved rivet 1 forms 100% combination, generates permanent fastening force.
Wherein, the locking slot of locking section 112 is the circumferentially disposed cyclic annular straight trough around screw rod 11.The tooth number of locking slot is best
For 18~20 teeth.The design of the shape and tooth number of above-mentioned locking slot, can reach best fastening effect.
Wherein, that breaks section 113 breaks slot around the circumferentially disposed of screw rod 11, and the section for breaking slot is trapezoidal.Break slot
Tooth number is preferably equivalent at least 22 teeth.The design of the above-mentioned shape for breaking slot and tooth number, it is ensured that installation rifle is applied to slot is broken
Slot fracture is broken when pulling force appropriate, to control the size for the extruding force that installation rifle applies to annular groove riveting set 2, ensures annular groove riveting
While set 2 is expressed to completely in the locking slot of locking section 112, unnecessary deformation not will produce.
Wherein, the hardness of the inner peripheral surface of annular groove riveting set 2 is HRB65~73.The range of the hardness of the inner peripheral surface of annular groove riveting set 2
Setting, it is ensured that annular groove riveting set 2 can be completely expressed in the locking slot of locking section 112.
There are three types of embodiments for the tool of spacing head 12 of the ring-grooved rivet 1 of the utility model ring-groove-type fastener.
The first embodiment of spacing head 12 is as shown in Figure 1 to Figure 3.
Spacing head 12 is circle along the radial section of screw rod 11, and the radius in the section of spacing head 12 is along far from screw rod 11
Direction gradually reduces.The spacing head 12 of shape as shown in Figure 3, it is fairly simple in process, it is easily worked.Wherein, it limits
The end face that potential head 12 is in contact with workpiece 200 is equipped with a plurality of anti-slip tank 123, and a plurality of anti-slip tank 123 is circumferentially disposed around screw rod 11.
When spacing head 12 is in contact with workpiece 200, anti-slip tank 123 can increase the frictional force between spacing head 12 and workpiece 200, ensure
Clamping force of the ring-groove-type fastener to workpiece 200.
Second of embodiment of spacing head 12 is as shown in Figures 4 to 6.
Spacing head 12 includes protruding ring 121 and head 122, protruding ring 121 be located at head 122 and screw rod 11 end it
Between, the peripheral surface of protruding ring 121 is seamlessly transitted to the peripheral surface on head 122, and the middle part of the peripheral surface of protruding ring 121 is along screw rod 11
Project radially outward, head 122 is circle along the radial section of screw rod 11, and the radius in the section on head 122 is along far from spiral shell
The direction of bar 11 gradually reduces.The spacing head 12 of shape as shown in FIG. 6 can save material while proof strength.Its
In, the end face that spacing head 12 is in contact with workpiece 200 is equipped with a plurality of anti-slip tank 123, circumferential direction of a plurality of anti-slip tank 123 around screw rod 11
Setting.When spacing head 12 is in contact with workpiece 200, anti-slip tank 123 can increase the friction between spacing head 12 and workpiece 200
Power ensures clamping force of the ring-groove-type fastener to workpiece 200.
The third embodiment of spacing head 12 is as shown in Figure 7 to 9.
Peripheral surface of the screw rod 11 close to the end of cooperation section 111 is equipped with locking screw, and spacing head 12 is lock sleeve 124, lock
Fixed 124 are sleeved on the end of screw rod 11 and are connect with the end thread of screw rod 11.During the installation process, it often will appear workpiece
The inadequate situation in the space of one end of 200 mounting hole 201.In this case, using the ring-groove-type fastener of the present embodiment,
Screw rod 11 is first first passed through into mounting hole 201, then the lock sleeve in the end sleeve of screw rod 11 from the larger side in 200 space of workpiece
124, lock sleeve 124 is connect with the end thread of screw rod 11.Then, ring-grooved rivet 1 is rotated using installation rifle, annular groove riveting is made to cover 2
Workpiece 200 is gradually squeezed, enables the annular groove riveting of interior smooth cover 2 and is expressed to completely in the locking slot of locking section 112.Use this implementation
The ring-groove-type fastener of example, can solve the clamping of the workpiece 200 in the case where space is inadequate.
Wherein, the end face that lock sleeve 124 is in contact with workpiece 200 be equipped with a plurality of anti-slip tank 123, a plurality of anti-slip tank 123 around
Screw rod 11 it is circumferentially disposed.When lock sleeve 124 is in contact with workpiece 200, anti-slip tank 123 can increase lock sleeve 124 and workpiece
Frictional force between 200 ensures clamping force of the ring-groove-type fastener to workpiece 200.
The utility model is not limited to the above embodiment, no matter making any variation in its shape or structure, all falls within
Within the scope of protection of the utility model.The scope of protection of the utility model is defined by the appended claims, this field
Technical staff under the premise of without departing substantially from the principles of the present invention and essence, a variety of changes can be made to these embodiments
It more or changes, but these change and modification each fall within the scope of protection of the utility model.
Claims (7)
1. a kind of ring-groove-type fastener, the ring-groove-type fastener includes ring-grooved rivet and annular groove riveting set, which is characterized in that described
Ring-grooved rivet includes：
Screw rod, the screw rod are divided into cooperation section, locking section and break section in an axial direction；The peripheral surface of the cooperation section is smooth table
The peripheral surface in face, the cooperation section is matched with the inner peripheral surface of the mounting hole of workpiece, and the length of the cooperation section is no more than described
The length of the mounting hole of workpiece；The peripheral surface of the locking section is equipped with multiple locking slots, and the annular groove riveting set is sleeved on the locking
It is squeezed into section and under the action of extruding force in multiple locking slots；The peripheral surface for breaking section breaks slot equipped with multiple,
Multiple slots of breaking are matched with the rotary head of installation rifle；
Spacing head, the spacing head are fixedly connected with the screw rod close to the end of the cooperation section, the outer diameter of the spacing head
More than the outer diameter of the screw rod；
Peripheral surface of the screw rod close to the end of the cooperation section is equipped with locking screw, and the spacing head is lock sleeve, described
Lock sleeve is sleeved on the end of the screw rod and is connect with the end thread of the screw rod.
2. ring-groove-type fastener as described in claim 1, it is characterised in that：The locking slot sets for the circumferential direction around the screw rod
The cyclic annular straight trough set.
3. ring-groove-type fastener as claimed in claim 1 or 2, it is characterised in that：The tooth number of the locking slot is 18~20 teeth.
4. ring-groove-type fastener as described in claim 1, it is characterised in that：The slot of breaking is set around the circumferential direction of the screw rod
It sets, the section for breaking slot is trapezoidal.
5. ring-groove-type fastener as described in claim 1 or 4, it is characterised in that：The tooth number for breaking slot is no less than 22 teeth.
6. ring-groove-type fastener as described in claim 1, it is characterised in that：The end that the spacing head is in contact with the workpiece
Face is equipped with a plurality of anti-slip tank, and a plurality of anti-slip tank is around the circumferentially disposed of the screw rod.
7. ring-groove-type fastener as described in claim 1, it is characterised in that：The hardness of the inner peripheral surface of annular groove riveting set is
HRB65~73.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652591.6U CN207848147U (en) | 2017-12-01 | 2017-12-01 | Ring-groove-type fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721652591.6U CN207848147U (en) | 2017-12-01 | 2017-12-01 | Ring-groove-type fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207848147U true CN207848147U (en) | 2018-09-11 |
Family
ID=63423208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721652591.6U Active CN207848147U (en) | 2017-12-01 | 2017-12-01 | Ring-groove-type fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207848147U (en) |
-
2017
- 2017-12-01 CN CN201721652591.6U patent/CN207848147U/en active Active
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