CN205025895U - Controllable self -plugging rivet subassembly of anti -disengagement fracture - Google Patents
Controllable self -plugging rivet subassembly of anti -disengagement fracture Download PDFInfo
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- CN205025895U CN205025895U CN201520607089.8U CN201520607089U CN205025895U CN 205025895 U CN205025895 U CN 205025895U CN 201520607089 U CN201520607089 U CN 201520607089U CN 205025895 U CN205025895 U CN 205025895U
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- core bar
- rivet
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- fracture
- swivel nut
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Abstract
The utility model provides a controllable self -plugging rivet subassembly of anti -disengagement fracture, its includes core bar, the nail body, body and swivel nut, the front portion of core bar is located to nail body cover, on the last end screw thread connection of swivel nut and core bar, body cover locate the core bar between the nail body and the swivel nut, is equipped with easy messenger's core bar in the front portion of core bar and is twisted into two parts the groove in what here broke, is equipped with easy messenger's body and is out of shape in here and forms the shoulder hole of tympanic part on the body. The utility model discloses set up the receipts pressure point on the outer wall of swivel nut, receive through the multiple spot and press in order to strengthen the auto -lock to can improve the auto -lock performance greatly, prevent that the core bar from deviating from. Furthermore, the utility model discloses a groove and shoulder hole are twisted off in the setting for the shoulder hole department of body warp at first because intensity is minimum and forms the tympanic part during rivet, and the groove department of twisting off of core bar is broken because intensity is minimum at first, makes the fracture of rivet controllable. The utility model discloses a head and counter sink shape phase -match of the core bar and the nail body to make rivet rivet later stage fracture can with by the riveting thing exterior facial features parallel and level, thereby possess stealthy function.
Description
[technical field]
The utility model relates to rivet joint, particularly a kind of with auto-lock function, can prevent that core bar from deviating from, fracture is controlled and there is the controlled self-plugging rivet assembly of Anti-extrusion fracture of stealthy function.
[background technique]
In the parts assembly connections such as aircraft, rocket, guided missile, high ferro, the connection in past mainly adopts bolt to add the linkage structure of packing ring, nut, the slow inefficiency of this Standard process medium velocity, the nut that is subject in addition running up connects and reliably easily to loosen, and makes Joint failure.Self-locking nut for the problem existing band auto-lock function now of Joint failure uses in a large number, and this problem obtains good solution, but turn join speed, raise the efficiency in appoint and so there are problems.So the utilization of self-plugging rivet solves the low problem of efficiency of assembling, but in the utilization of self-plugging rivet, self-locking property can not get solving, and rivets the fracture problem such as to be uneven in addition and makes its Stealth Fighter poor, thus cause the aircraft of the stealthy function of modern requirements, naval vessel do not reach requirement.So a kind of high self-locking property, high efficiency of assembling, fracture controlled and the self-plugging rivet demand of the stealthy function of tool is larger.
[model utility content]
The utility model is intended to solve the problem, and provides a kind of, tool stealthy function controlled with auto-lock function, fracture and in the controlled self-plugging rivet assembly of Anti-extrusion fracture of assembling.
For achieving the above object, the utility model provides the controlled self-plugging rivet assembly of a kind of Anti-extrusion fracture, it is characterized in that, it comprises core bar, rivet nut, body and swivel nut, described rivet nut is sheathed on the front portion of described core bar, described swivel nut is connected with the end thread of described core bar, and described body is sheathed on the core bar between described rivet nut and described swivel nut, is provided with easily makes core bar twist into two parts groove in what be pulled off herein in the front portion of described core bar.
Described body being provided with the shoulder hole easily making body form tympanic part herein in being out of shape, in described shoulder hole, being provided with ring, described ring to be sheathed on described core bar and with described core bar interference fit.
Described core bar comprises and is provided with externally threaded core bar screw section, the polished rod portion adjacent with core bar screw section, the core bar head adjacent with polished rod portion, the outer wall of described core bar head is provided with the convex annular edge of taper, described in being provided with between the end of described core bar head and the end face on described convex annular edge, twists into two parts groove.
Described rivet nut comprises tube in straight tube-like and the rivet nut head adjacent with tube, the internal diameter of described tube is consistent with the polished rod portion external diameter of described core bar, the counter sink mating shapes at described rivet nut nose shape and place to be riveted, it can embed in counter sink completely, be provided with the core bar head matching hole with described tube internal run-through at described rivet nut head, described core bar head matching hole is consistent along shape with the convex annular of described core bar head.
Described body is straight tube-like, and its internal diameter is consistent with the polished rod portion external diameter of described core bar, is provided with described shoulder hole in the end, one end of described body, and the internal diameter of described shoulder hole is greater than the internal diameter of described body.
The internal diameter of described swivel nut and the external diameter of described core bar screw section match, and the outer wall of described swivel nut is provided with several and receives pressure point, and when swivel nut is threadedly connected to described core bar screw section, it is received by multiple spot and compresses into row self-locking.
The outer wall of the end of the tube of described rivet nut is tapered.
The end of described core bar head is that milling is flat-shaped.
Favorable attributes of the present utility model is, it efficiently solves the problems referred to above.Core bar of the present utility model adopts with swivel nut and is threaded, and arranges receipts pressure point on the outer wall of swivel nut, receives pressure to strengthen self-locking, thus greatly can improve self-locking property, prevent core bar from deviating from by multiple spot.In addition, the utility model twists into two parts groove by arranging at the special position of core bar, at the particular position inside of body, shoulder hole is set, make rivet when staking, the shoulder hole place of body is out of shape formation tympanic part at first because intensity is minimum, the groove place of twisting into two parts of core bar is pulled off at first because intensity is minimum, thus makes the fracture of rivet controlled.In addition, due to head and the counter sink mating shapes of core bar of the present utility model and rivet nut, and due to the fracture of rivet controlled, thus make rivet staking later stage fracture can be mutually concordant with by the outer surface of riveting thing, thus possess stealthy function.Anti-extrusion fracture of the present utility model controlled self-plugging rivet assembly self-locking property is high, fracture is controlled, can stealthyly assemble, and easy to assembly, connect reliable, be easy to dismounting, easy to maintenance convenient, thus there is very strong practicability, should vigorously implement.
[accompanying drawing explanation]
Fig. 1 is assembly structure schematic diagram of the present utility model.
Fig. 2 is the worm's eye view of Fig. 1.
Fig. 3 is the structural representation of core bar of the present utility model.
Fig. 4 is the structural representation of rivet nut of the present utility model.
Fig. 5 is the worm's eye view of Fig. 4.
Fig. 6 is the structural representation of body of the present utility model.
Fig. 7 is the structural representation of ring of the present utility model.
Fig. 8 is the structural representation of swivel nut of the present utility model.
Fig. 9 is principle schematic of the present utility model, and wherein, Fig. 9 A represents the schematic diagram before non-staking, and the shoulder hole place of body is not also out of shape; Fig. 9 B represents schematic diagram during staking, and the shoulder hole place of body is deformed into tympanic part; Fig. 9 C represents the schematic diagram that staking completes, and core bar is pulled off in twisting into two parts groove place.
Wherein, core bar 1, core bar screw section 11, polished rod portion 12, core bar head 13, convex annular along 14, twist into two parts groove 15, rivet nut 2, tube 21, rivet nut head 22, core bar head matching hole 23, cross recess 24, body 3, shoulder hole 31, tympanic part 32, swivel nut 4, receive pressure point 41, ring 5.
[embodiment]
The following example is to further explanation of the present utility model and supplements, and does not constitute any limitation the utility model.
As shown in Fig. 1 ~ Fig. 9, the controlled self-plugging rivet assembly of Anti-extrusion fracture of the present utility model comprises core bar 1, rivet nut 2, body 3, swivel nut 4 and ring 5.Described rivet nut 2 and body 3 are adjacent to be respectively sheathed on described core bar 1, described swivel nut 4 is threadedly connected to the extreme ends of described core bar 1, broad outlines of the present utility model is, described core bar 1 is provided with and twists into two parts groove 15, it is the most weak to twist into two parts groove 15 place intensity, and it makes core bar 1 be easy to be twisted into two parts herein, thus make the fracture site of rivet controlled, and shoulder hole 31 is provided with on body 3, the intensity at shoulder hole 31 place is the most weak, and it makes body 3 be easy to be out of shape and form tympanic part 32 herein.In addition, core bar 1 of the present utility model is threaded with swivel nut 4, and it makes core bar 1 before spiral and then can carry out staking, and then staking can not be rocked and deviate from.In addition, described core bar 1 coordinates closely with described rivet nut 2, body 3 and swivel nut 4, and it can not rock and deviate from when staking is stressed, and has stronger self-locking property.
Particularly, as shown in Figure 3, core bar 1 of the present utility model comprises core bar screw section 11, polished rod portion 12 and core bar head 13.Described core bar screw section 11 is provided with outside thread, and it is for the described swivel nut 4 that is threaded.Described polished rod portion 12 is adjacent with described core bar screw section 11.In the present embodiment, the external diameter in described polished rod portion 12 is consistent with the external diameter of described core bar screw section 11.Described core bar head 13 carries out staking for clamping anchor rifle, and it is adjacent with described polished rod portion 12.One end that described core bar head 13 is adjacent with polished rod portion 12 is provided with outwardly tapered convex annular along 14, and the other end of described core bar head 13 is flat and in two flat-shaped, it is for clamping anchor rifle by milling.Described convex annular can match with counter sink along 14.Groove 15 is twisted into two parts along being provided with between 14 and the flat end of milling in described convex annular.In the present embodiment, described in twist into two parts groove 15 ringwise, it is by the end face of described convex annular along 14 radially indent and being formed.In other embodiments, also radially several grooves can be set described in being formed, twist into two parts groove 15 in interval at described core bar head 13.Described core bar head 13 twists into two parts groove 15 owing to being provided with, and core bar 1 is the most weak in twisting into two parts groove 15 place intensity, when core bar 1 is stressed acquire a certain degree time, described core bar 1 is convenient to twist into two parts groove 15 place and is disconnected, thus can control the fracture position of rivet, makes its fracture controlled.
As shown in Figure 4, Figure 5, described rivet nut 2 is sheathed on the leading portion of described core bar 1, and it comprises tube 21 and rivet nut head 22.Described tube 21 is in straight tube-like, and polished rod portion 12 external diameter of its internal diameter and described core bar 1 matches.The outer wall of the end of described tube 21 is tapered.The shape of described rivet nut head 22 and counter sink mating shapes, it can be embedded in completely in counter sink and reach stealthy object.The core bar head matching hole 23 with described tube 21 internal run-through is provided with at described rivet nut head 22.Described core bar head matching hole 23 is consistent along 14 shapes with the convex annular of described core bar head 13, it makes the convex annular of described core bar head 13 can be assemblied in this rivet nut head 22 completely along 14, keep the end face of rivet nut head 22 mutually concordant along the end face of 14 with convex annular, thus after rivet is ruptured, the part be anchored in thing to be connected reach stealthy object.In addition, described core bar head matching hole 23 also can limit the distance that core bar 1 is screwed into swivel nut 4.For coordinating anchor rifle to use, be provided with several cross recesses 24 matched with anchor rifle at the end face of described rivet nut head 22.
As shown in Figure 1, described body 3 is sheathed on middle part or the mid-rear portion of described core bar 1, and it is cylindrical.As shown in Figure 6, the external diameter in the internal diameter of described body 3 and the polished rod portion 12 of described core bar 1 matches.Forming tympanic part 32 for controlling body 3 in privileged site distortion, being provided with shoulder hole 31 in described body 3 inside.The internal diameter of described shoulder hole 31 is greater than the internal diameter of described body 3, thus makes body 3 the most weak in shoulder hole 31 place intensity, and during staking, body 3 is convenient to the distortion of shoulder hole 31 place and forms tympanic part 32.In the present embodiment, described shoulder hole 31 is located in the end of described body 3, and during installation, described shoulder hole 31 is adjacent with the tube 21 of described rivet nut 2.For making core bar 1 coordinate closely in body 3, preventing core bar 1 from rocking and deviating from, in described shoulder hole 31, being provided with ring 5.The size of described ring 5 and the size of described shoulder hole 31 match, and the external diameter in internal diameter and described polished rod portion 12 matches, and it is sheathed on the polished rod portion 12 of described core bar 1, and interference fit with it.
As shown in Figure 7, described swivel nut 4 is provided with internal thread, and it is threadedly connected to the screw section of core bar 1.
During assembling, first ring 5 is loaded shoulder hole 31 place of body 3, then by body 3 and ring 5 integral assembling on core bar 1, on core bar 1, be inserted in rivet nut 2 thereafter.Finally swivel nut 4 is set in the screw section of core bar 1, makes it to be threaded.The last multiple spot that carries out on the outer wall of swivel nut 4 receives the self-locking performance of pressing strengthened thread to connect.By this, the controlled self-plugging rivet assembly of Anti-extrusion fracture of the present utility model is just defined.During use, as shown in Figure 9 A, after self-plugging rivet being inserted the counter sink of thing to be riveted, with the flat end of milling of the anchor rifle clamping core bar head 13 of band spinfunction, rifle head blocks the cross recess 24 of rivet nut head 22 end face and withstands core bar head 13, then starts anchor rifle and screws.As shown in Figure 9 B, when core bar 1 turn, described swivel nut 4 forces body 3 to be out of shape vertically to body 3 direction turn, tympanic part 32 is formed in the distortion of shoulder hole 31 place, core bar 1 is twisted into two parts (as shown in Figure 9 C) in twisting into two parts groove 15 place simultaneously, make the fracture site of core bar 1 mutually concordant with the end face of described rivet nut head 22, thus complete reliable riveted joint, and realize stealthy object.Because core bar head 13 coordinates closely with rivet nut head 22, the polished rod portion 12 of core bar 1 closely cooperates with the tube 21 of rivet nut 2 and body, when core bar 1 is at anchor rifle effect lower stress, core bar 1 not easily rocks and deviates from, and receive pressure owing to the outer wall of swivel nut 4 having carried out multiple spot, can not deviate from when it more makes core bar 1 stressed and rock, thus there is stronger self-locking property.It is low that Anti-extrusion fracture of the present utility model controlled self-plugging rivet assembly solves existing rivet efficiency of assembling, poor in self, fracture site be uncontrollable, without the feature of stealthy function, rivet of the present utility model not only self-locking property is good, fracture is controlled, and can stealthyly assemble, and energy weight reduction, reduce assembly cost, and be threaded and be convenient to dismounting, use very convenient.
Although disclosed the utility model by above embodiment, but scope of the present utility model is not limited thereto, under the condition not departing from the utility model design, above each component can be replaced with the similar or equivalent element that art personnel understand.
Claims (8)
1. the controlled self-plugging rivet assembly of Anti-extrusion fracture, it is characterized in that, it comprises core bar (1), rivet nut (2), body (3) and swivel nut (4), described rivet nut (2) is sheathed on the front portion of described core bar (1), described swivel nut (4) is connected with the end thread of described core bar (1), described body (3) is sheathed on the core bar (1) between described rivet nut (2) and described swivel nut (4), is provided with easily makes core bar (1) twist into two parts groove (15) in what be pulled off herein in the front portion of described core bar (1).
2. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 1, it is characterized in that, described body (3) is provided with the shoulder hole (31) easily making body (3) form tympanic part (32) herein in being out of shape, in described shoulder hole (31), be provided with ring (5), described ring (5) be sheathed on described core bar (1) upper and with described core bar (1) interference fit.
3. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 1, it is characterized in that, described core bar (1) comprises and is provided with externally threaded core bar screw section (11), the polished rod portion (12) adjacent with core bar screw section (11), the core bar head (13) adjacent with polished rod portion (12), the outer wall of described core bar head (13) is provided with the convex annular of taper along (14), described in being provided with between the end of described core bar head (13) and the end face of described convex annular edge (14), twists into two parts groove (15).
4. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 3, it is characterized in that, described rivet nut (2) comprises tube (21) in straight tube-like and the rivet nut head (22) adjacent with tube (21), the internal diameter of described tube (21) is consistent with polished rod portion (12) external diameter of described core bar (1), the counter sink mating shapes at described rivet nut head (22) shape and place to be riveted, it can embed in counter sink completely, the core bar head matching hole (23) with described tube (21) internal run-through is provided with described rivet nut head (22), described core bar head matching hole (23) is consistent along (14) shape with the convex annular of described core bar head (13).
5. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 4, it is characterized in that, described body (3) is in straight tube-like, its internal diameter is consistent with polished rod portion (12) external diameter of described core bar (1), be provided with described shoulder hole (31) in the end, one end of described body (3), the internal diameter of described shoulder hole (31) is greater than the internal diameter of described body (3).
6. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 5, it is characterized in that, the internal diameter of described swivel nut (4) and the external diameter of described core bar screw section (11) match, the outer wall of described swivel nut (4) is provided with several and receives pressure point (41), when swivel nut (4) is threadedly connected to described core bar screw section (11), it is received by multiple spot and compresses into row self-locking.
7. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 3, it is characterized in that, the outer wall of the end of the tube (21) of described rivet nut (2) is tapered.
8. the controlled self-plugging rivet assembly of Anti-extrusion fracture as claimed in claim 2, it is characterized in that, the end of described core bar head (13) is that milling is flat-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607089.8U CN205025895U (en) | 2015-08-12 | 2015-08-12 | Controllable self -plugging rivet subassembly of anti -disengagement fracture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520607089.8U CN205025895U (en) | 2015-08-12 | 2015-08-12 | Controllable self -plugging rivet subassembly of anti -disengagement fracture |
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| CN205025895U true CN205025895U (en) | 2016-02-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626654A (en) * | 2016-02-18 | 2016-06-01 | 航天精工股份有限公司 | Bolt and nut assembly structure installed on one face |
| CN108119477A (en) * | 2016-11-30 | 2018-06-05 | 中国航空工业集团公司成都飞机设计研究所 | A kind of single side connection screw thread connector |
| CN112303092A (en) * | 2020-11-05 | 2021-02-02 | 航天精工股份有限公司 | Novel high-strength single-face connecting bolt |
-
2015
- 2015-08-12 CN CN201520607089.8U patent/CN205025895U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626654A (en) * | 2016-02-18 | 2016-06-01 | 航天精工股份有限公司 | Bolt and nut assembly structure installed on one face |
| CN108119477A (en) * | 2016-11-30 | 2018-06-05 | 中国航空工业集团公司成都飞机设计研究所 | A kind of single side connection screw thread connector |
| CN112303092A (en) * | 2020-11-05 | 2021-02-02 | 航天精工股份有限公司 | Novel high-strength single-face connecting bolt |
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Address after: 518000 Building 101, Building B, Building C, Building D, Building E, Building F, No. 22, Fengqi Road, Fuchengao Community, Pinghu Street, Longgang District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Asia Pacific Aviation Technology Co.,Ltd. Address before: 518000 a, 4th floor, building e, hongguoxiang Industrial Park, 13-2, Xinhe 1st lane, hongzhuling, Xinnan village, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ASIA-PACIFIC AVIATION TECHNOLOGY Co.,Ltd. |