CN209006604U - For fastening the device of pulling rivet - Google Patents

Abstract

The utility model discloses a kind of for fastening the device of pulling rivet, comprising: swingle, sliding block, elastic fastener and cylindrical case, the front-end and back-end of cylindrical case are respectively formed with the first perforation and the second perforation, have protrusion on inner wall.One end of swingle and the sliding block inside cylindrical case are connected through a screw thread, the other end stretches out except cylindrical case, for being connect with the external tool that can provide rotary power, tool drives swingle rotation, band movable slider is moved in cylindrical case internal translation, and then drive fastener front end therein and protrusions match, to realize the pulling rivet clamping or release that pass through retainer member central perforation, the device no setting is required internal power source, with modular construction, structure is simple, at low cost, practical.

Description

For fastening the device of pulling rivet

Technical field

The utility model relates to fastening device technical fields more particularly to a kind of for fastening the device of pulling rivet.

Background technique

Pulling rivet is also self-plugging rivet, be in order to solve metal plate, pipe connectivity problem and develop.

In view of metal plate tapping is easy to slip teeth, the features such as welded nut technical requirements are high and design rivet nut, it can The staking product of tapping thread and welded nut is not needed when with for riveting.Securely due to its riveting, high-efficient, using simple It is convenient, it is widely applied to the riveting of the industrial products such as aviation, railway, automobile, elevator, furniture, instrument, decoration at present.

Pulling rivet is fastened to and usually requires to use dedicated staking tool on metal plate, existing staking tool is mostly hand Dynamic formula, electrodynamic type and pneumatic type, hand staking implement productivity is lower, and use is relatively elaborate, and in frequent continuous operation riveting It is easy to cause user tired in work.Electrodynamic type or pneumatic type staking tool are the monolithic devices connecting with electric and pneumatic fuselage Riveting tool, structure typically more complexity and higher cost.

Utility model content

The utility model provide it is a kind of for fastening the device of pulling rivet, to overcome above-mentioned skill existing in the prior art Art problem, and there is simplified modular construction, it can match with the rotatable clamp device such as existing electric drill, pneumatic drill, spanner, sleeve It closes and uses, it is low in cost.

It is provided by the utility model a kind of for fastening the device of pulling rivet, comprising: swingle, sliding block, elastic fastener And cylindrical case；The front-end and back-end of the cylindrical case are respectively formed with the first perforation and the second perforation；The sliding block is located at In first cavity of the cylindrical case；One end of the swingle is threadedly coupled with the rear end of the sliding block, and the other end is from institute State the second perforation stretching；When the swingle rotates, the sliding block does translational motion along the axial direction of the cylindrical case；It is described tight The center of firmware is perforated with third, and the rear end of the fastener is fixed in the second cavity of the sliding block, and described second is empty Chamber is connected to the perforation of taper the 4th for being located at the slip front, and the side surface of the fastener front end is by elastic force against described The conical surface of 4th perforation, the sliding in the 4th perforation；There is protrusion on the inner wall of the cylindrical case, it is described prominent It rises and is located at around first perforation；When the protrusion described in the apical grafting of the fastener front end, described in first perforation Pulling rivet can the activity in the third is perforated；When the fastener front end is detached from the protrusion, the fastener clamping position The pulling rivet in third perforation.

Optionally, the fastener includes toilet article, holddown spring and opens part, and described holddown spring one end is as described tight The rear end of firmware is fixed in the second cavity of the sliding block, and the other end of the holddown spring and the part that opens fix company It connects；The toilet article are wedge shape, and the front end activity as the fastener is placed in the 4th perforation, described to open part dependence Toilet article described in the elastic compression of the holddown spring make the wedge-shaped surface of the toilet article as the side surface of the fastener front end The conical surface perforated by the elastic force of the holddown spring against the described 4th；The perforation for opening part center and the tooth The perforation at tool center is coaxial, constitutes the third perforation；When protrusion described in the apical grafting of the fastener front end, protrusion protrudes into the tooth The perforation at tool center.

Further, the sliding block includes the sliding block rear portion and sliding block front for being removably secured connection, the sliding block Rear end is located at the one end at the sliding block rear portion, and the front end of the sliding block is located at one end of the sliding block front, second cavity In the sliding block front.

Optionally, the sliding block rear portion is hexagonal prisms, and cylindrical case inner wall corresponding with the sliding block rear portion has The interior hexagon to match with the shape at the sliding block rear portion.

Further, cylindrical case includes the shell and stake for being removably secured connection, as the cylindrical case The stake of front end has first perforation and the protrusion, one end conduct far from the stake of the shell The rear end of the cylindrical case, first cavity are located in the shell.

Optionally, the device further includes torsional spring, is set on the swingle, and a torque arm is fixed on the rotation On bar, another torque arm is fixed on the inner wall of the shell.

Further, the device further includes retainer, between the shell and the stake；The shell The partial outer face of the retainer is wrapped up, and is removably secured and connect with the retainer；Described in the retainer package The partial outer face of stake, and be removably secured and connect with the stake；It is intracorporal that the retainer protrudes into the shell When one end is against the sliding block rear portion, the sliding block stops the direction translational motion to the stake.

Optionally, the protrusion is taper, fastener front end described in the lesser top apical grafting of the sectional area of the protrusion.

Further, the device further includes ball bearing, be fixed on the cylindrical case inner wall and the rotation Between bar.

Optionally, it is hexagonal prisms, the phase of the hexagonal prisms longitudinal section that swingle, which is located at the part except the cylindrical case, It is quarter inch to the distance between both sides.

In device provided by the utility model for fastening pulling rivet, inside one end of swingle and cylindrical case Sliding block be connected through a screw thread, the other end stretches out except cylindrical case, for connecting with the external tool that can provide rotary power It connects, tool drives swingle rotation, and swingle band movable slider is in cylindrical case axially inside translational motion, thus by tool Rotary power is converted into the translational motion of sliding block；Again due to being provided with elastic fastener in sliding block, fastener can be made by elastic force The side surface of front end is resisted against the conical surface of slip front perforation, and fastener is enable to slide in the perforation, sliding In the process with the protrusions match on cylindrical case inner wall, thus realize pass through retainer member central perforation pulling rivet clamp or Release, completes tightening operation when stepping up, when release completes to move back useless nail operation.Therefore the device can use simple structure will be external Rotary power is converted to the pulling force of fastening pulling rivet, tightening operation is realized, and power source is arranged without portion in the device, into one Step simplifies apparatus structure, reduces installation cost, and the device is also made to have the modular construction for being adapted to various power sources, shows Work improves the practicability of device.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is Some embodiments of the utility model, for those of ordinary skill in the art, in the premise of not making the creative labor property Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is provided by the embodiment of the utility model a kind of for fastening the cross-sectional view of the device of pulling rivet；

Fig. 2 is the exploded partial perspective view of Fig. 1 shown device；

Fig. 3 is the exploded partial cutaway view of Fig. 1 shown device；

Partial sectional view when Fig. 4 is the fastener clamping pulling rivet in Fig. 1 shown device；

Partial sectional view when Fig. 5 is the fastener release pulling rivet in Fig. 1 shown device.

Specific embodiment

To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model Attached drawing in example, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described reality Applying example is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, ability It is practical new to belong to this for domain those of ordinary skill every other embodiment obtained without creative efforts The range of type protection.

To keep the technical solution of the utility model clearer, the embodiments of the present invention are carried out below in conjunction with attached drawing It is described in detail.

Fig. 1 is provided by the embodiment of the utility model a kind of for fastening the cross-sectional view of the device of pulling rivet, Fig. 2 Fig. 1 The exploded partial perspective view of shown device, Fig. 3 are the exploded partial cutaway view of Fig. 1 shown device.

As shown in Figures 1 to 3, provided in this embodiment for fasten the device of pulling rivet to include: swingle 1, sliding block 2, bullet Property fastener 3 and cylindrical case 4.Wherein, the front-end and back-end of cylindrical case 4 are respectively formed with the perforation of the first perforation T1 and second T2.Sliding block 2 is located in the first cavity S1 of cylindrical case 4.One end of swingle 1 is threadedly coupled with the rear end of sliding block 2, the other end It is stretched out from the second perforation T2.When swingle rotation, sliding block 2 does translational motion along the axial D of cylindrical case 4.

The center of fastener 3 has third perforation T3, and the rear end of fastener 3 is fixed in the second cavity S2 of sliding block 2, the Two cavity S2 and the taper the 4th for being located at 2 front end of the sliding block T4 that perforates be connected tos, and the side surface of fastener front end relies on elastic force against the The conical surface of four perforation T4 slides in the 4th perforation T4.In addition, having protrusion A, protrusion A on the inner wall of cylindrical case 4 Around the first perforation T1.

As 3 front end apical grafting protrusion A of fastener, the pulling rivet across the first perforation T1 can live in third perforation T3 It is dynamic.When 3 front end of fastener is detached from protrusion A, which clamps the pulling rivet being located in third perforation T3.

When using above-mentioned apparatus, when being such as fastened to pulling rivet on metal plate, pulling rivet is first placed on the tight of metal plate Maintenance is set, then grip ring set is in the nail rod of pulling rivet.Swingle 1 stretches out the portion outside the second perforation T2 of 4 rear end of cylindrical case Dividing can connect with the external tool (not shown) that can provide rotary power, such as electric drill, pneumatic drill in automated tool, Spanner, sleeve in hand-operated tools etc., to provide rotary power to swingle 1, due to being located in 4 first cavity S1 of cylindrical case Sliding block be threadedly coupled with swingle 1, and swingle 1 rotate when, energy band movable slider 2 along the axial D of cylindrical case 4 do translation fortune Dynamic, therefore, the rotary power of external tool is converted into the translational motion of sliding block 2 by swingle 1.

There is the second cavity S2 in sliding block 2, there is the 4th perforation T4 of taper in 2 front end of sliding block, and the second cavity S2 and the 4th is worn Hole T4 connection, the rear end of fastener 3 is fixed on the second cavity S2, since fastener 3 is elastic, the side table of 3 front end of fastener It is slided by elastic force against the conical surface of the 4th perforation T4, and in the 4th perforation T4 in face.Meanwhile the inner wall of cylindrical case 4 On also have protrusion A, protrusion A be located at first perforation T1 around.

Pass through rotating in the forward direction for swingle 1, when 2 translational motion of sliding block is to close to the front end of cylindrical case 4, fastener 3 Front end energy apical grafting protrusion A, third perforation T3 can be enable to accommodate, and pulling rivet is movable in it, and pulling rivet is initially passed through outside tubular After first perforation T1 of 4 front end of shell, then penetrate third perforation T3's.Then, swingle 1 reversely rotates, and makes sliding block 2 to opposite Direction translational motion, therefore 3 front end of fastener is detached from protrusion, at this moment, fastener 3 loses protrusion A and acts on its apical grafting, and presss from both sides The pulling rivet being tightly located in its third perforation T3.At this point, lantern ring outer wall of 4 front end of cylindrical case on metal plate, with cunning Block 2 continues reversed translational motion, applies pulling force on pulling rivet, makes lantern ring under the extruding of 4 front end of cylindrical case, clamps staking The nail rod of nail, pulling force deform the ailhead of pulling rivet, and then nail rod disconnects automatically, complete fastener cycle.

At this point, swingle 1 rotates in the forward direction again, make front end translational motion of the sliding block 2 to cylindrical case 4, before fastener 3 When the energy apical grafting protrusion A of end, the pulling rivet of the disconnection in third perforation T3 is released, and can be movable in third perforation T3, It realizes and moves back useless nail process.

It is provided by the embodiment of the utility model for fastening in the device of pulling rivet, due to one end of swingle and tubular outside Sliding block inside shell is connected through a screw thread, and the other end stretches out except cylindrical case, for that can provide rotary power with external Tool connection, tool drive swingle rotation, and swingle band movable slider is in cylindrical case axially inside translational motion, thus will The rotary power of tool is converted into the translational motion of sliding block；Again due to being provided with elastic fastener in sliding block, can make by elastic force The side surface of fastener front end is resisted against the conical surface of slip front perforation, and fastener is enable to slide in the perforation, With the protrusions match on cylindrical case inner wall during sliding, the staking nail clip that retainer member central is perforated is passed through to realize Tight or release, completes tightening operation when stepping up, when release completes to move back useless nail operation.Therefore the device can use simple structure External rotary power is converted to the pulling force of fastening pulling rivet, realizes tightening operation, and power is set without portion in the device Source further simplifies apparatus structure, reduces installation cost, and the device is also made to have the modularization for being adapted to various power sources Structure has been obviously improved the practicability of device.

Partial sectional view when Fig. 4 is the fastener clamping pulling rivet in Fig. 1 shown device, Fig. 5 is in Fig. 1 shown device Fastener discharge pulling rivet when partial sectional view.

As shown in Figures 1 to 5.Fastener 3 specifically may include toilet article 31, holddown spring 32 and open part 33.Wherein, it compresses 32 one end of spring is fixed in the second cavity S2 of sliding block 2 as the rear end of fastener 3, the other end of holddown spring 32 with open Part 33 is fixedly connected.As shown in Figures 1 to 3, toilet article 31 are that preferably wedge shape, toilet article 31 are placed as the front end activity of fastener 3 In the 4th perforation T4, part 33 is opened by the elastic compression toilet article 31 of holddown spring 32, makes the wedge-shaped surface conduct of toilet article 31 The side surface of 3 front end of fastener relies on the elastic force of the holddown spring 32 against the conical surface of the 4th perforation T4.It opens in part 33 The perforation of the heart is coaxial with the perforation at 31 center of toilet article, constitutes above-mentioned third perforation T3.When 3 front end apical grafting protrusion A of fastener, dash forward Play the perforation that A protrudes into 31 center of toilet article.

Toilet article 31 are Common Component in clamping tool, and when outer surface is squeezed, center is used to wear wearing for pulling rivet X Hole sectional area can reduce, to clamp workpiece.Elastic force of the wedge-shaped surface of toilet article 31 by holddown spring 32 is opened part 33 and is pushed up Firmly, conical surface of the wedge-shaped surface of toilet article 31 against the 4th perforation T4.As shown, the sectional area of the 4th perforation T4 of taper Biggish one end is connected to the second cavity S2, and the lesser one end of sectional area is an opening K of sliding block 2, wedge-shaped toilet article 31 The lesser tip of sectional area towards this be open K.It is oblique by the size and surface that are suitably designed toilet article 31 and the 4th perforation T4 Degree, can make the tip of toilet article 31 when being opened 33 thrusting action of part, partially stretch out this opening K.While stretching, tooth Extruding of the outer surface of tool 31 by the 4th perforation T4 conical surface, reduces the sectional area of third perforation T3, to clamp drawing The nail rod of rivet X.

In addition, the tip of toilet article 31 can retract in the 4th perforation T4, toilet article 31 in 3 front end apical grafting protrusion A of fastener No longer by the extruding of conical surface, thus third perforation T3 can restore original state again, and protrusion A can protrude into 31 center of toilet article Perforation, further expand the sectional area of 31 central hole of toilet article, so discharge be arranged in third perforation T3 in nail rod.

Using above-mentioned fastener 3, may be implemented to complete clamping and releasing for pulling rivet X with simple structure.It needs Bright, the shape for opening part 33 is not limited to as shown in the figure, can be known to those skilled in the art any wear with center Kong Bingneng abuts against toilet article 31, makes toilet article 31 by the structure of thrust.

In device described in above-described embodiment, sliding block 2 may include being removably secured the sliding block rear portion 21 of connection and sliding Block front 22, the rear end of sliding block 2 described in above example are located at the one end at the sliding block rear portion 21, described by above example The front end of sliding block 2 be located at one end of the sliding block front 22, the second cavity S2 is located in sliding block front 22.

By the way that sliding block 2 is divided into two parts, i.e. sliding block front 22 and sliding block rear portion 21, and this two parts is using removably It is fixedly connected with mode, the installation of sliding block 2 and its fastener 3 of inside and maintenance can be made to become easier.As shown, sliding Block rear portion 21 can be solid construction, and for being threadedly coupled with swingle 1, sliding block front 22 is hollow structure, and therein second is empty Chamber S2 accommodates fastener 3, and sliding block front 22 has third perforation T3, and the setting of toilet article 31 of 3 front end of fastener is perforated in the third In T3.

Wherein, sliding block front 22 preferably uses with the connection type at sliding block rear portion 21 and is threadedly coupled, certainly, art technology Other connection types known to personnel can be used for this.

Above-mentioned sliding block rear portion 21 can be hexagonal prisms, and correspondingly, the inner wall corresponding with sliding block rear portion 21 of cylindrical case 4 has The interior hexagon to match with the shape at sliding block rear portion 21.It is arranged such, it is ensured that rotated in swingle 1 and with movable slider 2 During, sliding block 2 will not rotate together in the first cavity S1 of cylindrical case 4 with swingle 1, while also not interfere to slide Translational motion is done in 2 first cavity S1 of block.Certainly, it can be set on sliding block 2 and its on the inner wall of corresponding cylindrical case other Mating structure, such as protrusion and matched pit so that swingle 1 rotate when, sliding block 2 can only be made to do translational motion, no It can be rotated with swingle 1.

For the ease of the installation and maintenance to above-mentioned apparatus, cylindrical case 4 therein may include the company of being removably secured The shell 41 and stake 42 connect.That is, cylindrical case 4 can be divided into two parts, shell 41 and stake 42, and this two Part is removably secured connection, is preferably threadedly coupled, but the utility model is without being limited thereto, is also possible to those skilled in the art Other connection types known to member.

Stake 42 as 4 front end of cylindrical case has the first perforation T1 and protrusion A, and the separate stake of shell 41 Rear end of 42 one end as cylindrical case 4, the first cavity S1 are located in shell 41.As shown, cylindrical case 4 splits into two Part, stake 42 include the first perforation T1, and rest part is shell 41, form the first cavity S1, stake 42 in shell 41 Surface towards the first cavity S1 is exactly the part being located at around the first perforation T1 in the inner wall of cylindrical case 4, is formed with prominent Play A.

Stake 42 is individually designed, can be when using the device provided in this embodiment for being used to fasten pulling rivet X, root According to different pulling rivet X dimensions, various sizes of stake 42 is selected, to improve the general applicability of the present apparatus.Specifically make With in the process, the pulling rivet of different thicknesses, the first perforation T1's is of different sizes in stake 42 used, and length is also different, The protrusion A of stake 42 has certain taper, in order to be readily separated from toilet article, different stakes 42, this taper Difference, the degree that toilet article can be made to separate is different, to form the third perforation T3 of different sizes, and then is suitable for different shaped Number pulling rivet.

It can also include torsional spring 5 in device provided by the above embodiment, which is set on swingle 1, a torsion Arm is fixed on swingle 1, and another torque arm is fixed on the inner wall of shell 41.During carrying out fastening pulling rivet X, staking The nail rod for following closely X passes through the first perforation T1 and third perforation T3.When external power source drives swingle 1 to rotate, one of torsional spring 5 Torque arm and then rotates, and makes 5 elastic deformation of torsional spring.By the way that the direction of rotation of swingle 1 is arranged, when making its rotation band movable slider 2 to Direction translational motion far from 4 inner wall protrusion A of cylindrical case, then nail rod is clamped by fastener 3, with the translational motion of sliding block 2, The pulling force being applied in nail rod is increasing, is finally completed staking and the operation of broken nail.

Then, external power supply is laid down, torsional spring 5 leans on spring return original state, reversely rotates swingle 1, also returns to rotation Position before turning, the position of 3 apical grafting protrusion A of fastener is restored to movable slider 2, and broken nail is released, from third perforation T3, first It is exited in perforation T1, useless nail operation is moved back in realization.It follows that device may be implemented by setting torsional spring 5 moves back useless nail operation automatically, Without labor intensive, automatic operation is realized with simple structure, further reduced installation cost.

It can also include retainer 6, between shell 41 and stake 42 in above-mentioned device.The package of shell 41 stops The partial outer face of moving part 6, and be removably secured and connect with retainer 6.The part appearance of the package stake 42 of retainer 6 Face, and be removably secured and connect with stake 42.It is sliding when retainer 6 protrudes into one end in shell 41 against sliding block rear portion 21 Block 2 stops the direction translational motion to stake 42.

6 role of retainer is limited to sliding block 2.Specifically, when carrying out staking operation, if torsional spring 5 Deformation it is more, after torsional spring 5 is restored to original state by elasticity, there are also certain speed for torque arm, and due to effect of inertia, torque arm continues edge Twisting direction before is advanced, and continues to translate so that sliding block 2 is driven to the direction of stake, to make the front end of fastener 3 The protrusion A for squeezing stake 42 is hit, so that the service life to stake 42 and fastener 3 generates adverse effect.By setting Retainer 6 is set, when torsional spring 5 is restored to original state by elasticity, sliding block rear portion 21 can be abutted against, prevents it from again to stake 42 Direction translational motion avoids the damage to stake 42 and fastener 3, improves the reliability and service life of device.

It should be understood that the connection type between retainer 6 and shell 41 and stake 42 can be and be threadedly coupled, It can be other dismountable connection types known to those skilled in the art.

Protrusion A on 4 inner wall of cylindrical case can as shown be taper, and the sectional area of tip portion is less than bottom part Sectional area, wherein lesser 3 front end of top apical grafting fastener of sectional area.Protrusion A is set as taper, is fastened in its apical grafting When part front end, the power of the axial D of 3 impact tab A of fastener has been decomposed a part of direction perpendicular to axis by the conical surface of protrusion A To the direction of D, to can be relieved the impact force of suffered fastener 3, further improve the reliability of device and use the longevity Life.

In addition, in above-mentioned device can also include ball bearing 7, be fixed on cylindrical case 4 inner wall and swingle 1 it Between.In this way, swingle 1 would not generate abrasion to cylindrical case 4 when rotated, also improves the reliability of device and use the longevity Life.Preferably, ball bearing 7 can be made to be located at the second perforation side T2, i.e., positioned at the rear end of cylindrical case 4, and then second Perforate T2, is conducive to the beautiful, practical of device.

In device provided by the above embodiment, swingle 1, which is located at the part except cylindrical case 4, to be hexagonal prisms, should The distance between opposite both sides of hexagonal prisms longitudinal section can be quarter inch.What is used when fastening pulling rivet X at present is dynamic Power source uses the interface of the size more, and the practicability the present embodiment provides device can be promoted using the swingle 1 of the size.

Finally, it should be noted that above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations； Although the utility model is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc. With replacement；And these are modified or replaceed, various embodiments of the utility model technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (10)

1. a kind of for fastening the device of pulling rivet characterized by comprising outside swingle, sliding block, elastic fastener and tubular Shell；The front-end and back-end of the cylindrical case are respectively formed with the first perforation and the second perforation；The sliding block is located at the tubular In first cavity of shell；One end of the swingle is threadedly coupled with the rear end of the sliding block, and the other end is worn from described second Hole is stretched out；When the swingle rotates, the sliding block does translational motion along the axial direction of the cylindrical case；

The center of the fastener is perforated with third, and the rear end of the fastener is fixed in the second cavity of the sliding block, Second cavity is connected to the perforation of taper the 4th for being located at the slip front, and the side surface of the fastener front end relies on bullet Conical surface of the power against the 4th perforation, the sliding in the 4th perforation；Have on the inner wall of the cylindrical case Protrusion, the protrusion are located at around first perforation；

When the protrusion described in the apical grafting of the fastener front end, the pulling rivet across first perforation can be worn in the third It is movable in hole；When the fastener front end is detached from the protrusion, the fastener clamps the institute being located in third perforation State pulling rivet.

2. according to claim 1 for fastening the device of pulling rivet, which is characterized in that the fastener include toilet article, Holddown spring and part is opened, described holddown spring one end is fixed on the second cavity of the sliding block as the rear end of the fastener Interior, the other end of the holddown spring is fixedly connected with the part that opens；The toilet article are wedge shape, before the fastener End activity is placed in the 4th perforation, and toilet article described in the elastic compression for opening part by the holddown spring make institute The wedge-shaped surface for stating toilet article relies on the elastic force of the holddown spring against the described 4th as the side surface of the fastener front end The conical surface of perforation；The perforation for opening part center is coaxial with the perforation at the toilet article center, constitutes the third perforation； When protrusion described in the apical grafting of the fastener front end, protrusion protrudes into the perforation at the toilet article center.

3. according to claim 1 or 2 for fastening the device of pulling rivet, which is characterized in that the sliding block includes removable The sliding block rear portion and sliding block front being fixedly connected with unloading, the rear end of the sliding block are located at the one end at the sliding block rear portion, the cunning The front end of block is located at one end of the sliding block front, and second cavity is located in the sliding block front.

4. according to claim 3 for fastening the device of pulling rivet, which is characterized in that the sliding block rear portion is six ribs Column, cylindrical case inner wall corresponding with the sliding block rear portion have the interior hexagonal to match with the shape at the sliding block rear portion Shape.

5. according to claim 3 for fastening the device of pulling rivet, which is characterized in that cylindrical case includes removably The shell and stake being fixedly connected, as the cylindrical case front end the stake have it is described first perforation and it is described Protrusion, rear end of the one end far from the stake of the shell as the cylindrical case, first cavity are located at institute It states in shell.

6. according to claim 5 for fastening the device of pulling rivet, which is characterized in that further include torsional spring, be set in institute It states on swingle, a torque arm is fixed on the swingle, and another torque arm is fixed on the inner wall of the shell.

7. according to claim 5 for fastening the device of pulling rivet, which is characterized in that further include retainer, be located at institute It states between shell and the stake；The shell wraps up the partial outer face of the retainer, and removable with the retainer It is fixedly connected with unloading；The retainer wraps up the partial outer face of the stake, and is removably secured with the stake Connection；When the retainer protrudes into the intracorporal one end of the shell against the sliding block rear portion, the sliding block stops to the riveting gun The direction translational motion of head.

8. according to claim 1 or 2 for fastening the device of pulling rivet, which is characterized in that the protrusion is taper, institute State fastener front end described in the lesser top apical grafting of sectional area of protrusion.

9. according to claim 1 or 2 for fastening the device of pulling rivet, which is characterized in that it further include ball bearing, Gu It is scheduled between the inner wall of the cylindrical case and the swingle.

10. according to claim 1 or 2 for fastening the device of pulling rivet, which is characterized in that swingle is located at the cylinder Part except shape shell is hexagonal prisms, and the distance between opposite both sides of the hexagonal prisms longitudinal section are quarter inch.