CN207583782U

CN207583782U - Detachable blind rivet

Info

Publication number: CN207583782U
Application number: CN201721759908.6U
Authority: CN
Inventors: 布佳鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-16
Filing date: 2017-12-16
Publication date: 2018-07-06
Anticipated expiration: 2027-12-16

Abstract

The utility model provides a kind of detachable blind rivet, is related to attachment device field, including blind rivet body part and core bar；Blind rivet body part includes blocking portion, tube and support portion；Blocking portion and support portion are connected to the both ends of tube；Core bar is connect with blind rivet body part, and core bar is accommodated in tube；The first end of core bar is adapted to the first end of support portion.Compared to the prior art, the detachable blind rivet of the application offer by operating core bar, exerts a force to support portion, and support portion expansion can be made to complete the fixation of workpiece to be connected；Support portion is made it away from by operating core bar, support portion can restore shape when losing limitation, to realize dismounting；It can realize recycling, use cost is cheap.Further, since installation and removal process, without specific purpose tool, as long as the general utility tool of core bar can be driven, therefore, dismounting is more flexible and convenient.

Description

Detachable blind rivet

Technical field

The utility model is related to attachment device field, more particularly, to a kind of detachable blind rivet.

Background technology

Blind rivet also known as self-plugging rivet are the rivets of a kind of blind riveting, must use specific purpose tool --- hand riveter into Row riveting.During riveting, rivet mandrel is pulled by special riveting gun, expands rivet body, plays the role of riveting.This kind of rivet is particularly suitable In inconvenience using must from the riveting occasion that two sides is riveted, therefore be widely used in building, automobile, ship, aircraft, machine, electric appliance, On the products such as furniture.

Blind rivet needs of the prior art can just be completed to install by specific purpose tool, cause installation not convenient enough, application Not enough understand.In addition, irreversible deformation can occur for blind rivet in use, also need to shear rivet mandrel, because This, can not reuse.

Utility model content

The purpose of this utility model is to provide a kind of detachable blind rivets, cannot to solve blind rivet of the prior art The technical issues of enough reusing.

To solve the above problems, a kind of detachable blind rivet provided by the utility model, including：

Blind rivet body part, the blind rivet body part include blocking portion, tube and support portion；The blocking portion connects One end of tube is connected on, for being against the first side of workpiece to be connected；The support portion is connected to the other end of tube；

Core bar, the core bar is connect with blind rivet body part, and core bar is accommodated in tube；The first end of the core bar It is adapted to the first end of support portion, when so that the core bar is moved in tube to first direction, the first end of core bar can act on The first end of support portion makes the second end of support portion be rotated around the first end of support portion, and entire support portion is unfolded to be against outward The second side of workpiece to be connected.

In the above-mentioned technical solutions, further, the blocking portion is annular, and the blocking portion is equipped with threaded hole, described Core bar is adapted to connection with threaded hole.

In the above-mentioned technical solutions, further, be equipped with internal thread in the tube, the outside of the core bar be equipped with The external screw thread of the internal thread adaptation.

In the above-mentioned technical solutions, further, the first end of the core bar is the first arc surface, the of the support portion One end is equipped with the second arc surface being adapted to the first arc surface.

In the above-mentioned technical solutions, further, the second end of the core bar is equipped with to drive core bar around own axes The groove of rotation.

In the above-mentioned technical solutions, further, the support portion includes several supporting rods and can deform upon Connection sheet, the connection sheet are fixedly connected with tube, and the supporting rod is fixed on the inside of connection sheet.

In the above-mentioned technical solutions, further, the first end of the core bar is the first arc surface；The of the supporting rod One end is equipped with inclined-plane, and the tip on the inclined-plane is equipped with the second arc surface being adapted to the first arc surface.

In the above-mentioned technical solutions, further, the supporting rod includes integrally formed first plate and the second plate, The section of support is L-shaped；When support portion is unfolded to be against outward wait the second side for connecting workpiece, the first plate of supporting rod with The second side fitting of workpiece to be connected.

In the above-mentioned technical solutions, further, the supporting rod has four, the ring of four supporting rods equally Shape is distributed.

In the above-mentioned technical solutions, further, the length of the core bar meets following condition：Support portion is unfolded outward It is against when the second side for connecting workpiece, the second end of the core bar is concordant with blocking portion or is embedded in tube.

Compared to the prior art, detachable blind rivet provided by the utility model by operating core bar, is applied support portion Power can make support portion expansion complete the fixation of workpiece to be connected；Support portion is made it away from by operating core bar, support portion exists When losing limitation, shape can be restored, to realize dismounting；It can realize recycling, use cost is cheap.In addition, installation and Disassembly process is without specific purpose tool, as long as the general utility tool of core bar can be driven, therefore, dismounting is more flexible and just It is prompt.

The additional aspect and advantage of the utility model will become apparent or new by this practicality in following description section The practice of type is recognized.

Description of the drawings

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below In attached drawing be the utility model some embodiments, for those of ordinary skill in the art, do not paying creativeness Under the premise of labour, other attached drawings are can also be obtained according to these attached drawings.

Fig. 1 is the external structure schematic diagram of detachable blind rivet that the section Example that the application provides provides；

Fig. 2 is the internal structure schematic diagram of detachable blind rivet that the section Example that the application provides provides；

Fig. 3 is the scheme of installation of detachable blind rivet that the section Example that provides of the application provides before fixation；

Fig. 4 is diagrammatic cross-sections of the Fig. 3 in A-A directions；

Fig. 5 is structure diagrams of the Fig. 3 in B directions；

Fig. 6 is the scheme of installation of detachable blind rivet that the section Example that provides of the application provides after fixation；

Fig. 7 is structure diagrams of the Fig. 6 in C directions.

Scheme of installation of the detachable blind rivet that the section Example provided for the application provides before fixation；

Reference numeral：

1- blind rivet body parts；2- core bars；3- workpiece to be connected；11- blocking portions；12- tubes；13- support portions；131- Supporting rod；132- connection sheets；The first arc surfaces of 21-；22- grooves.

Specific embodiment

The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described Embodiment is the utility model part of the embodiment, instead of all the embodiments.Based on the embodiment in the utility model, sheet Field those of ordinary skill all other embodiments obtained without making creative work, belong to this practicality Novel protected range.

In the description of the present invention, it should be noted that term " " center ", " on ", " under ", it is "left", "right", " perpendicular Directly ", the orientation of the instructions such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only The utility model must have specific with the device or element for simplifying description rather than instruction or hint meaning for ease of description Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.In addition, term " the One ", " second ", " third " are only used for description purpose, and it is not intended that instruction or hint relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally Connection；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, It can be the connection inside two elements.For the ordinary skill in the art, can above-mentioned art be understood with concrete condition Concrete meaning of the language in the utility model.

Refering to Fig. 1 and Fig. 2, the application provides a kind of detachable blind rivet, including blind rivet body part 1 and core bar 2；Institute It states blind rivet body part 1 and includes blocking portion 11, tube 12 and support portion 13；The blocking portion 11 is connected to tube 12 One end, for being against the first side of workpiece 3 to be connected；The support portion 13 is connected to the other end of tube 12；The core bar 2 It is connect by screw thread with blind rivet body part 1, and core bar 2 is accommodated in tube 12；The first end and support portion of the core bar 2 13 first end adaptation, when so that the core bar 2 is moved to first direction in the tube 12, the first end of core bar 2 can act on branch The first end of support part 13 makes the second end of support portion 13 be rotated around the first end of support portion 13, and entire support portion 13 is opened up outward Open the second side for being against workpiece 3 to be connected.

In this embodiment, core bar 2 is to be connect by screw thread with blind rivet body part 1, and certainly, core bar 2 can also pass through Other modes are connect with blind rivet body part 1.

The detachable blind rivet that the application provides, operation principle are as follows：

Refering to Fig. 3, Fig. 6 and Fig. 7, blind rivet body part 1 is passed through to the through-hole of workpiece 3 to be connected, supports blocking portion 11 In the first side of workpiece 3 to be connected；Rotation core bar 2 makes core bar 2 be moved in tube 12 to first direction, until core bar 2 First end acts on the first end of support portion 13, the second end of support portion 13 is made to be rotated around the first end of support portion 13, until whole A support portion 13 is unfolded to be against the second side of workpiece 3 to be connected outward, that is, completes connecting moves；

When needing dismounting, rotation core bar 2 makes core bar 2 be moved in tube 12 to second direction, until the first of core bar 2 End no longer acts on the first end of support portion 13, after the limitation for losing core bar 2, be folded up support portion 13 make support portion 13 with Tube 12 is concordant, you can the detachable blind rivet is taken out in workpiece 3 to be connected from connecting.

As can be seen from the above description, the detachable blind rivet provided compared to the prior art, the application, by operating core bar 2, It exerts a force to support portion 13, support portion 13 can be unfolded to complete the fixation of workpiece 3 to be connected；Make it remote by operating core bar 2 From support portion 13, support portion 13 can restore shape when losing limitation, to realize dismounting；It can realize recycling, use It is of low cost.

In addition, installation and removal process without specific purpose tool, as long as can drive core bar 2 rotate general utility tool it is equal Can, therefore, dismounting is more flexible and convenient.

Refering to Fig. 4, specifically, the second end of the core bar 2 is equipped with to drive core bar 2 around the recessed of own axis Slot 22, groove 22 are linear type or M shape, it is only necessary to which dismounting can be completed in general screwdriver.

In some embodiments, the blocking portion 11 for annular, the blocking portion 11 be equipped with threaded hole, the core bar 2 with Threaded hole adaptation connection.2 part of core bar is threadedly coupled with blocking portion 11, is partly accommodated in tube 12, tube 12 it is interior Diameter size is equal to or slightly greater than the outer diameter of core bar 2.

Certainly, this be both the application a specific embodiment, the core bar 2 of the application and the connection of blind rivet body part 1 Mode is not limited thereto or other connection modes.For example, it is equipped in other embodiments, in tube 12 interior Screw thread, the outside of the core bar 2 are equipped with the external screw thread being adapted to the internal thread.

In some embodiments, the support portion 13 includes several supporting rods 131 and the connection sheet that can be deformed upon 132, the connection sheet 132 is fixedly connected with tube 12, and the supporting rod 131 is fixed on the inside of connection sheet 132.The core The first end of bar 2 is the first arc surface 21；The first end of the supporting rod 131 is equipped with inclined-plane, the tip on the inclined-plane be equipped with Second arc surface of the first arc surface 21 adaptation.

Certainly, this be only the application some specific embodiments, the shape and supporting rod 131 of the first end of core bar 2 The shape of one end, which is not limited to arc surface or its, can realize the shape of cooperation.

First arc surface 21 of core bar 2 acts on the second arc surface, and driving supporting rod 131 is rotated around contact point, until with Workpiece 3 to be connected is bonded.

Refering to Fig. 5, in some embodiments, the supporting rod 131 includes integrally formed first plate and the second plate, The section of support is L-shaped；When support portion 13 is unfolded to be against wait the second side for connecting workpiece 3 outward, the first of supporting rod 131 Plate is bonded with the second side of workpiece 3 to be connect, and the second plate, which plays reinforcement effect, makes the second end of supporting rod 131 be not easy to stick up It rises.

Certainly, this be only the application some specific embodiments, the shape of the supporting rod 131 of the application is not limited to This, if with the preferable plastics of ductility or other materials, can also make other shapes.As long as tip and the core of support Bar first end can match, and realize the expansion of support portion.

Refering to Fig. 6, in some embodiments, the supporting rod 131 has four, and four supporting rods 131 are equally Annular spread, can ensure the second side uniform force of workpiece 3 to be connected.Certainly, the quantity of supporting rod 131 is not limited to This or other quantity, but be preferred with being equally spaced.

In some embodiments, the length of the core bar 2 meets following condition：Support portion 13 is unfolded to be against the company for the treatment of outward When connecing the second side of workpiece 3, the second end of the core bar 2 is concordant with blocking portion 11 or is embedded in tube 12.It can ensure 3 both sides of workpiece to be connected are in concordant state, without significant protruding portion, the second end of core bar 2 are avoided to scratch other portions Part.

Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new The range of each embodiment technical solution of type.

Claims

1. a kind of detachable blind rivet, which is characterized in that including：

Blind rivet body part, the blind rivet body part include blocking portion, tube and support portion；The blocking portion is connected to One end of tube, for being against the first side of workpiece to be connected；The support portion is connected to the other end of tube；

Core bar, the core bar is connect with blind rivet body part, and core bar is accommodated in tube；The first end and branch of the core bar The first end adaptation of support part, when so that the core bar is moved in tube to first direction, the first end of core bar can act on support The first end in portion makes the second end of support portion be rotated around the first end of support portion, and entire support portion is unfolded to be against the company for the treatment of outward Connect the second side of workpiece.

2. detachable blind rivet according to claim 1, which is characterized in that the blocking portion is annular, the blocking portion Equipped with threaded hole, the core bar is adapted to connection with threaded hole.

3. detachable blind rivet according to claim 1, which is characterized in that internal thread is equipped in the tube, it is described The outside of core bar is equipped with the external screw thread being adapted to the internal thread.

4. detachable blind rivet according to claim 1, which is characterized in that the first end of the core bar is the first circular arc Face, the first end of the support portion are equipped with the second arc surface being adapted to the first arc surface.

5. detachable blind rivet according to claim 1, which is characterized in that the second end of the core bar is equipped with to drive Core bar is around the groove of own axis.

6. detachable blind rivet according to claim 1, which is characterized in that the support portion include several supporting rods and The connection sheet that can be deformed upon, the connection sheet are fixedly connected with tube, and the supporting rod is fixed on the inside of connection sheet.

7. detachable blind rivet according to claim 6, which is characterized in that the first end of the core bar is the first circular arc Face；The first end of the supporting rod is equipped with inclined-plane, and the tip on the inclined-plane is equipped with the second arc surface being adapted to the first arc surface.

8. detachable blind rivet according to claim 6, which is characterized in that the supporting rod includes integrally formed first Plate and the second plate, the section of support is L-shaped；When support portion is unfolded to be against wait the second side for connecting workpiece outward, branch First plate of strut is bonded with the second side of workpiece to be connect.

9. detachable blind rivet according to claim 6, which is characterized in that the supporting rod has four, four branch The annular spread of strut equally.

10. detachable blind rivet according to claim 1, which is characterized in that the length of the core bar meets following condition： Support portion is unfolded to be against when the second side for connecting workpiece outward, and the second end of the core bar is concordant with blocking portion or is embedded in In tube.