CN205415502U - Stud release formula rifle head - Google Patents

Stud release formula rifle head Download PDF

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Publication number
CN205415502U
CN205415502U CN201620246138.4U CN201620246138U CN205415502U CN 205415502 U CN205415502 U CN 205415502U CN 201620246138 U CN201620246138 U CN 201620246138U CN 205415502 U CN205415502 U CN 205415502U
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CN
China
Prior art keywords
stud
mandrel
rifle head
steel ball
projection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620246138.4U
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Chinese (zh)
Inventor
李健
陈帅
刘华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Chaoli Hi Tech Co Ltd
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Chongqing Chaoli Hi Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chongqing Chaoli Hi Tech Co Ltd filed Critical Chongqing Chaoli Hi Tech Co Ltd
Priority to CN201620246138.4U priority Critical patent/CN205415502U/en
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Publication of CN205415502U publication Critical patent/CN205415502U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a stud release formula rifle head belongs to appurtenance machinery, including the rifle head body, fixed cover and dabber, the passageway that link up about the rifle head body is provided with, the passageway internalization inlays to be equipped with and compresses tightly the piece, and the bottom of passageway is for being provided with internal screw thread stud screw in mouth, and fixed ways is located the interior rifle head body that just can drive of passageway and is rotated, fixed cover is worn to locate in the dabber activity, and the lateral wall of dabber is provided with the lug, and fixed cover is provided with the draw -in groove, and the lug activity is inlayed between lug roof and the draw -in groove roof and is equipped with the steel ball in inlaying and locating the draw -in groove, and when the dabber drove the lug and removes in the draw -in groove, the dabber can reciprocate along the axial lead, compresses tightly the piece and also can reciprocate under the drive of dabber. Stud release formula rifle head mainly used screws stud on the product screw fast, compares the stud tightening tool among the prior art, and this technique can be guaranteed to unscrew lifting the stud that shi buhui will tighten on the product screw off.

Description

A kind of stud release type rifle head
Technical field
This utility model relates to aid mechanical field, in particular to a kind of stud release type rifle head.
Background technology
Existing stud quick tightening tool includes handle, sleeve, alignment pin, leading screw rotational structure and key set, the lead angle of the screw thread pair of sleeve and leading screw composition is more than screw thread equivalent friction angle, screw thread does not has self-lock ability, so, required driving torque is more than the regular screw threads having self-lock ability.Time actually used, being spun on stud by key set, rotary handle or machine power spanner drive leading screw, make alignment pin rotation direction helicla flute lower end, leading screw lower end bulb withstands stud upper surface, forces band moving sleeve, key set to rotate, thus by stud Quick fastening on body.When unloading, being screwed into external force and release, the connection screw thread of sleeve and leading screw loses self-lock ability, as long as rotating backward handle, just can unload instrument.
There is following shortcoming in this stud quick tightening tool: 1, rotary handle band moving sleeve, key set rotate, stud screws in key set screw immediately, until before leading screw lower end bulb withstands stud upper surface, the screw thread pair of sleeve and leading screw composition is likely not to have and screws motion.At this moment alignment pin does not has rotation direction helicla flute lower end, it is likely that just motionless in helicla flute upper end, until leading screw lower end bulb withstands stud upper surface.When unloading, rotary handle band moving sleeve, key set reversely rotates, owing to alignment pin is in helicla flute upper end, limit sleeve and leading screw composition screw thread pair mutually screw motion, leading screw lower end bulb withstands the active force of stud upper surface and can not get release, there is the moment of friction that pretightning force is formed in stud and key set screw, can be unscrewed by the stud being tightened on body.
Utility model content
The purpose of this utility model is to provide a kind of stud release type rifle head, to improve above-mentioned problem.
This utility model is achieved in that
The stud release type rifle head that this utility model provides includes rifle head body, fixed cover and mandrel;Rifle head body is provided with the passage of up/down perforation, and in passage, activity is embedded with compressing member, and the bottom of passage screws in mouth for arranging female stud, and fixed cover is sheathed in passage and rifle head body can be driven to rotate;
Mandrel is actively located in fixed cover, the sidewall of mandrel is provided with projection, fixed cover is provided with draw-in groove, projection activity is embedded in draw-in groove, it is embedded with steel ball between projection roof and draw-in groove roof, when mandrel drives projection to move in draw-in groove, mandrel can move up and down along axial line, and compressing member is positioned at the bottom of mandrel.
It is internal that fixed cover is sheathed on rifle head, mandrel is arranged in fixed cover, the top of mandrel is mechanical work end, the bottom of mandrel can prop up compressing member during moving downward and move down, the bottom of rifle head body is that stud screws in mouth, and compressing member can prop up the top of stud during moving down.
nullTime actually used,The stud of rifle head body bottom is screwed in the upper screw thread of mouth alignment stud,Pneumatic (electronic) spanner is connected with the mechanical work end of mandrel,Rotary pneumatic (electronic) spanner band moving mandrel rotates,The roof of the projection on mandrel drives steel ball rolling,And react on steel ball by the roof of the draw-in groove of fixed cover,Mandrel is made to move up,When we rotate clockwise with mandrel herein,Mandrel illustrates as a example by moving down,Mandrel moves down,Compressing member moves down: when the projection of mandrel rotates to prop up draw-in groove,Mandrel drives rifle head body to rotate,Thus the stud of the screw thread at stud two precession rifle head body bottom respectively is screwed in mouth and product screw: when screwing into stud upper surface and withstanding compressing member,Pass through mandrel、Steel ball、Fixed cover counteracting force,Stud screws in the screw thread generation pretightning force of mouth and stud,And force to drive stud to be tightened on the screw of product.
Reversely rotate pneumatic (electronic) spanner band moving mandrel to rotate, steel ball is driven to roll counterclockwise under the effect of the frictional force that the roof of the projection on mandrel is formed at counteracting force, along with the carrying out rolled, move on mandrel, mandrel, steel ball, fixed cover counteracting force eliminate, and stud screw-in mouth is released with the pretightning force of stud.When projection rotates to the other end propping up draw-in groove, mandrel drives rifle head body to rotate counterclockwise, just can unload whole rifle head.
The key problem that the technical program is to be solved is, when unloading instrument, it is impossible to unscrewed by the stud being tightened on product screw.Solve this problem, the most guaranteed stud and stud and screw in the moment of friction that the moment of friction of interruption-forming is formed less than stud and product screw pretightning force.
In prior art, the moment of friction that stud and tightening tool screw pretightning force are formed, the moment that substantially sliding friction is formed, and the moment that this utility model substantially rolling friction is formed, owing to force of rolling friction is much smaller than force of sliding friction, therefore, compared to existing technology, this utility model reduces the required moment of driving, compressing member can be made to depart from stud top or remove the power putting on stud top, thus discharge stud and the pretightning force of stud screw-in mouth, compared to existing technology, reduce stud and the moment of friction of stud screw-in interruption-forming.This utility model is significantly larger than prior art in terms of tightening stud reliability.This is for ensureing that product quality is of great significance.
Further, vias inner walls circumferentially direction is provided with the first steel ball rolling channel, and mandrel sidewall circumferentially direction is provided with the second steel ball rolling channel, the first steel ball rolling channel and the second steel ball rolling channel and is correspondingly arranged and is highly gradually increasing;Steel ball slides and is embedded in the first steel ball rolling channel and the second steel ball rolling channel.
What the first steel ball rolling channel and the second steel ball rolling channel formed the raceway that steel ball circumferentially direction rolls, the first steel ball rolling channel and the second steel ball rolling channel functions as bearing bearing support.When mandrel drives projection to move, steel ball rolls along the first steel ball rolling channel and the second steel ball rolling channel, and the height of the first steel ball rolling channel and the second steel ball rolling channel is gradually increasing, and then band moving mandrel moves up and down.
Further, the outer wall of fixed cover is threadeded with channel side wall.
When mandrel drives fixed cover to rotate, the rifle head body threadeded with fixed cover also and then rotates.Fixed cover and rifle head body are threaded connection composition groundwork inner chamber, it is simple to dust-proof and storing lubricating grease, increase the service life.
Further, the top of draw-in groove is divided into two parts, and a part is positive stop, and another part is slip tipper;The roof of slip tipper is inclined plane, and steel ball is embedded between the roof of projection and the roof of slip tipper, and mandrel drives projection to move in the lower section of positive stop and slip tipper.
Positive stop includes diapire and sidewall, and wherein sidewall is the inwall of slip tipper simultaneously, and this sidewall is mainly used in the spacing of steel ball, and the diapire of positive stop is used for dodging projection.Mandrel drives the projection circumferential direction along mandrel in draw-in groove to move, and the inclined plane of slip tipper reacts on steel ball, makes mandrel move down.When mandrel rotates, steel ball is rolling friction with projection, the friction of slip tipper, reduces rotating torque.
Further, the roof of projection is obliquely installed, and the incline direction of the roof of projection is identical with the incline direction of the roof of slip tipper.
The roof of projection is obliquely installed, and on the one hand can increase the amplitude that mandrel moves up and down, on the other hand, it is possible to dodge spacing block set, it is ensured that smooth and easy movement.
Further, one end of the close slip tipper of the roof of projection is provided with the projection for preventing steel ball landing.
When projection moves to positive stop, steel ball is positioned at the side-walls of positive stop, and the projection of projection is used for spacing steel ball, it is to avoid steel ball skids off between projection roof and slip tipper.
Further, projection arranges multiple, and multiple projections are circumferentially disposed around mandrel, and draw-in groove arranges multiple, and multiple bayonet slot rings are circumferentially disposed around fixed cover, and each projection slides and is embedded in a draw-in groove.
Multiple projections and draw-in groove the most circumferentially direction is arranged, and forms the raceway of steel ball, when steel ball rolls in this raceway, it is achieved moving up and down of mandrel between the roof of the roof of each projection and a draw-in groove.
Further, compressing member is cushion block, and the longitudinal cross-section of cushion block is the "convex" shaped stood upside down.
Longitudinal cross-section is the "convex" shaped stood upside down, and cushion block can be made up of Upper cylindrical and lower cylindrical, and the diameter of Upper cylindrical is more than the diameter of lower cylindrical.The bottom of lower cylindrical is after mandrel is moved down into certain distance, and the bottom of lower cylindrical props up the top of stud, thus forces to drive stud to be tightened in product screw.Cushion block can reduce the impact that stud is screwed by the friction bottom mandrel and between stud top.
Further, the bottom of mandrel is connected with the top of compressing member.
Compressing member can be connected with the bottom of mandrel, can also be not connected to, when using the first implementation, mandrel drives compressing member to move up and down during moving up and down, and when mandrel moves up, compressing member departs from the top of stud, and then release stud and stud screw in the pretightning force between mouth, when mandrel moves down, compressing member moves down and props up stud upper surface, utilizes coaction to realize stud and screws in product.
When using the second implementation, after mandrel moves up, can remove the power putting on stud top, it is possible to release stud and stud screw in the pretightning force between mouth, mandrel moves down and props up compressing member thus force to screw in product screw stud.The application preferably the first implementation, mandrel is connected with cushion block
Further, the cross section on the top of mandrel is that the top of hexagon or mandrel is provided with square opening.
The top of mandrel is mechanical work end, and for the effect end of spanner, the implementation that mandrel rotates uses pneumatic impact spanner or electric wrench, and mandrel top cross section is hexagon or mandrel top cross section is square opening, is mutually matched with spanner for realizing.
The beneficial effects of the utility model: stud release type rifle head utilizes rolling friction to be much smaller than the principle of sliding friction, provide one and can will not make, after stud is screwed in the dismounting of product screw, the technical scheme that the stud being tightened on product is unscrewed.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, the accompanying drawing used required in embodiment will be briefly described below, it is to be understood that, the following drawings illustrate only some embodiment of the present utility model, therefore the restriction to scope it is not construed as, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The whole interior structural representation of the stud release type rifle head that Fig. 1 provides for this utility model embodiment;
Fig. 2 is the sectional view of the A-A along Fig. 1;
Fig. 3 is the front view of the rifle head body in the stud release type rifle head shown in Fig. 1;
Fig. 4 is the internal structure schematic diagram of the rifle head body shown in Fig. 3;
Fig. 5 is the front view of the mandrel in the stud release type rifle head shown in Fig. 1;
Fig. 6 is the front view of the fixed cover in the stud release type rifle head shown in Fig. 1;
Fig. 7 is the internal structure schematic diagram of the fixed cover shown in Fig. 6;
Fig. 8 is the front view of the compressing member in the stud release type rifle head shown in Fig. 1.
In figure:
Rifle head body 101;Fixed cover 102;Mandrel 103;Passage 104;Compressing member 105;Stud screws in mouth 106;Projection 107;Draw-in groove 108;Steel ball 109;Positive stop 200;Slip tipper 201;Projection 202.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is a part of embodiment of this utility model rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of this utility model embodiment that illustrate described in accompanying drawing herein.
Therefore, the detailed description to the embodiment of the present utility model provided in the accompanying drawings is not intended to limit claimed scope of the present utility model below, but is merely representative of selected embodiment of the present utility model.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms in following accompanying drawing, therefore, the most a certain Xiang Yi accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that, term " on ", D score, " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, or this utility model product orientation usually put or position relationship when using, it is for only for ease of description this utility model and simplifies description, rather than instruction or the device of hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Describe additionally, term " first ", " second " etc. are only used for distinguishing, and it is not intended that indicate or hint relative importance.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " is arranged ", " connection " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected;Can be to be mechanically connected, it is also possible to be electrical connection;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in this utility model can be understood with concrete condition.
Detailed description of the invention, referring to figs. 1 through Fig. 8.
As depicted in figs. 1 and 2, the stud release type rifle head that the present embodiment provides includes rifle head body 101, fixed cover 102 and mandrel 103;As shown in Figure 3 and Figure 4, rifle head body 101 is provided with the passage 104 of up/down perforation, in passage 104, activity is embedded with compressing member 105, and the bottom of passage 104 screws in mouth 106 for arranging female stud, in fixed cover 102 is sheathed on passage 104 and rifle head body 101 can be driven to rotate;Mandrel 103 is actively located in fixed cover 102, the sidewall of mandrel 103 is provided with projection 107, fixed cover 102 is provided with draw-in groove 108, projection 107 activity is embedded in draw-in groove 108, it is embedded with steel ball 109 between projection 107 roof and draw-in groove 108 roof, when mandrel 103 drives projection 107 to move in draw-in groove 108, mandrel 103 can move up and down along axial line, and compressing member 105 is positioned at the bottom of mandrel 103.
Passage 104 inwall circumferentially direction is provided with the first steel ball rolling channel, and mandrel 103 sidewall circumferentially direction is provided with the second steel ball rolling channel, the first steel ball rolling channel and the second steel ball rolling channel and is correspondingly arranged and is highly gradually increasing;Steel ball 109 slides and is embedded in the first steel ball rolling channel and the second steel ball rolling channel.What the first steel ball rolling channel and the second steel ball rolling channel formed the raceway that steel ball 109 circumferentially direction rolls, the first steel ball rolling channel and the second steel ball rolling channel functions as bearing bearing support.When mandrel 103 drives projection 107 to move, steel ball 109 rolls along the first steel ball rolling channel and the second steel ball rolling channel, and the height of the first steel ball rolling channel and the second steel ball rolling channel is gradually increasing, and then band moving mandrel 103 moves up and down.
The top of draw-in groove 108 is divided into two parts, and as shown in Figure 6 and Figure 7, a part is positive stop 200, and another part is slip tipper 201;The roof of slip tipper 201 is inclined plane, and steel ball 109 is embedded between the roof of projection 107 and the roof of slip tipper 201, and mandrel 103 drives projection 107 to move in the lower section of positive stop 200 and slip tipper 201.Positive stop 200 includes diapire and sidewall, and wherein sidewall is the inwall of slip tipper 201 simultaneously, and this sidewall is mainly used in the spacing of steel ball 109, and the diapire of positive stop 200 is used for dodging projection 107.Mandrel 103 drives projection 107 to move along the circumferential direction of mandrel 103 in draw-in groove 108, and the inclined plane of slip tipper 201 reacts on steel ball 109, makes mandrel 103 move down.When mandrel 103 rotates, steel ball 109 is rolling friction with projection 107, the friction of slip tipper 201, reduces rotating torque.
The top of draw-in groove 108 is in addition to using above-mentioned structure, it is also possible to using this structure, the roof of draw-in groove 108 to be obliquely installed, steel ball is embedded between the roof of projection 107 and the roof of draw-in groove 108.
As the preferred implementation of the present embodiment, as it is shown in figure 5, the roof of projection 107 is obliquely installed, the incline direction of the roof of projection 107 is identical with the incline direction of the roof of slip tipper 201.The roof of projection 107 is obliquely installed, and on the one hand can increase the amplitude that mandrel 103 moves up and down, on the other hand, it is possible to dodge spacing block set 107, it is ensured that smooth and easy movement.One end of the close slip tipper 201 of the roof of projection 107 is provided with the projection 202 for preventing steel ball 109 landing.When projection 107 moves to positive stop 200, steel ball 109 is positioned at the side-walls of positive stop 200, and the projection 202 of projection 107 is for spacing steel ball 109, it is to avoid steel ball 109 skids off between projection 107 roof and slip tipper 201.
Projection 107 arranges multiple, and multiple projections 107 are circumferentially disposed around mandrel 103, and draw-in groove 108 arranges multiple, and multiple draw-in grooves 108 are circumferentially disposed around fixed cover 102, and each projection 107 slides and is embedded in a draw-in groove 108.Multiple projections 107 and draw-in groove 108 the most circumferentially direction are arranged, and form the raceway of steel ball 109, when steel ball 109 rolls in this raceway, it is achieved moving up and down of mandrel 103 between roof and the roof of a draw-in groove 108 of each projection 107.
The cross section on the top of mandrel 103 is that the top of hexagon or mandrel 103 is provided with square opening.The top of mandrel 103 is mechanical work end, effect end for spanner, the implementation that mandrel 103 rotates uses pneumatic impact spanner or electric wrench, and mandrel 103 top cross section is hexagon or mandrel 103 top cross section is square opening, is mutually matched with spanner for realizing.
The bottom of mandrel 103 is connected with the top of compressing member 105.Compressing member 105 can be connected with the bottom of mandrel 103, can also be not connected to, when using the first implementation, mandrel 103 drives compressing member 105 to move up and down during moving up and down, and when mandrel 103 moves up, compressing member 105 departs from the top of stud, and then release stud and stud screw in the pretightning force between mouth 106, when mandrel 103 moves down, compressing member 105 moves down and props up stud upper surface, utilizes coaction to realize stud and screws in product.
When using the second implementation, after mandrel 103 moves up, can remove the power putting on stud top, it is possible to release stud and stud screw in the pretightning force between mouth 106, mandrel 103 moves down and props up compressing member 105 thus force to screw in product screw stud.The application preferably the first implementation, mandrel 103 is connected with cushion block.
The preferred implementation of compressing member 105, compressing member 105 is cushion block, and as shown in Figure 8, the longitudinal cross-section of cushion block is the "convex" shaped stood upside down.Longitudinal cross-section is the "convex" shaped stood upside down, and cushion block can be made up of Upper cylindrical and lower cylindrical, and the diameter of Upper cylindrical is more than the diameter of lower cylindrical.The bottom of lower cylindrical is after mandrel 103 is moved down into certain distance, and the bottom of lower cylindrical props up the top of stud, thus forces to drive stud to be tightened in product screw.Cushion block can reduce the impact that stud is screwed by the friction bottom mandrel 103 and between stud top.
The outer wall of fixed cover 102 is connected with passage 104 sidewall thread.When mandrel 103 drives fixed cover 102 to rotate, the rifle head body 101 threadeded with fixed cover 102 also and then rotates.Fixed cover 102 and rifle head body 101 are threaded connection composition groundwork inner chamber, it is simple to dust-proof and storing lubricating grease, increase the service life.
Fixed cover 102 is sheathed in rifle head body 101, mandrel 103 is arranged in fixed cover 102, the top of mandrel 103 is mechanical work end, the bottom of mandrel 103 can prop up compressing member 105 during moving downward and move down, the bottom of rifle head body 101 is that stud screws in mouth 106, and compressing member 105 can prop up the top of stud during moving down.
nullTime actually used,The stud of rifle head body 101 bottom is screwed in mouth 106 and is directed at the upper screw thread of stud,Pneumatic (electronic) spanner is connected with the mechanical work end of mandrel 103,Rotary pneumatic (electronic) spanner band moving mandrel 103 rotates,The roof of the projection 107 on mandrel 103 drives steel ball 109 to roll,And react on steel ball 109 by the roof of the draw-in groove 108 of fixed cover 102,Mandrel 103 is made to move up,When we rotate clockwise with mandrel 103 herein,Mandrel 103 illustrates as a example by moving down,Mandrel 103 moves down,Compressing member 105 moves down: when the projection 107 of mandrel 103 rotates to prop up draw-in groove 108,Mandrel 103 drives rifle head body 101 to rotate,Thus the stud of the screw thread at stud two precession rifle head body 101 bottom respectively is screwed in mouth 106 and product screw: when screwing into stud upper surface and withstanding compressing member 105,By mandrel 103、Steel ball 109、Fixed cover 102 counteracting force,Stud screws in the screw thread generation pretightning force of mouth 106 and stud,And force to drive stud to be tightened on the screw of product.
Reversely rotate pneumatic (electronic) spanner band moving mandrel 103 to rotate, steel ball 109 is driven to roll counterclockwise under the effect of the frictional force that the roof of the projection 107 on mandrel 103 is formed at counteracting force, along with the carrying out rolled, move on mandrel 103, mandrel 103, steel ball 109, fixed cover 102 counteracting force eliminate, and stud screw-in mouth 106 is released with the pretightning force of stud.When projection 107 rotates to the other end propping up draw-in groove 108, mandrel 103 drives rifle head body 101 to rotate counterclockwise, just can unload whole rifle head.
The key problem that the technical program is to be solved is, when unloading instrument, it is impossible to unscrewed by the stud being tightened on product screw.Solve this problem, the most guaranteed stud and stud and screw in the moment of friction that the moment of friction of mouth 106 formation is formed less than stud and product screw pretightning force.
In prior art, the moment of friction that stud and tightening tool screw pretightning force are formed, the moment that substantially sliding friction is formed, and the moment that this utility model substantially rolling friction is formed, owing to force of rolling friction is much smaller than force of sliding friction, therefore, compared to existing technology, this utility model reduces the required moment of driving, compressing member 105 can be made to depart from stud top or remove the power putting on stud top, thus discharge stud and the pretightning force of stud screw-in mouth 106, compared to existing technology, reduce stud and stud screws in the moment of friction that mouth 106 is formed.This utility model is significantly larger than prior art in terms of tightening stud reliability.This is for ensureing that product quality is of great significance.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.

Claims (10)

1. a stud release type rifle head, it is characterised in that include rifle head body, fixed cover and mandrel;
Described rifle head body is provided with the passage of up/down perforation, and in described passage, activity is embedded with compressing member, and the bottom of described passage screws in mouth for arranging female stud, and described fixed cover is sheathed in described passage and described rifle head body can be driven to rotate;
Described mandrel is actively located in described fixed cover, the sidewall of described mandrel is provided with projection, described fixed cover is provided with draw-in groove, described projection activity is embedded in described draw-in groove, it is embedded with steel ball between described projection roof and described draw-in groove roof, when described mandrel drives described projection to move in described draw-in groove, described mandrel can move up and down along axial line, and described compressing member is positioned at the bottom of described mandrel.
Stud release type rifle head the most according to claim 1, it is characterized in that, described vias inner walls circumferentially direction is provided with the first steel ball rolling channel, described mandrel sidewall circumferentially direction is provided with the second steel ball rolling channel, described first steel ball rolling channel and described second steel ball rolling channel and is correspondingly arranged and is highly gradually increasing;Described steel ball slides and is embedded in described first steel ball rolling channel and described second steel ball rolling channel.
Stud release type rifle head the most according to claim 1, it is characterised in that the outer wall of described fixed cover is threadeded with described channel side wall.
Stud release type rifle head the most according to claim 1, it is characterised in that the top of described draw-in groove is divided into two parts, and a part is positive stop, and another part is slip tipper;The roof of described slip tipper is inclined plane, and described steel ball is embedded between the roof of described projection and the roof of described slip tipper, and described mandrel drives described projection to move in the lower section of described positive stop and described slip tipper.
Stud release type rifle head the most according to claim 4, it is characterised in that the roof of described projection is obliquely installed, the incline direction of the roof of described projection is identical with the incline direction of the roof of described slip tipper.
Stud release type rifle head the most according to claim 4, it is characterised in that one end of the close described slip tipper of the roof of described projection is provided with the projection for preventing steel ball landing.
Stud release type rifle head the most according to claim 1, it is characterized in that, described projection arranges multiple, multiple described projections are circumferentially disposed around described mandrel, described draw-in groove arranges multiple, multiple described bayonet slot rings are circumferentially disposed around described fixed cover, and each described projection slides and is embedded in a described draw-in groove.
Stud release type rifle head the most according to claim 1, it is characterised in that described compressing member is cushion block, the longitudinal cross-section of described cushion block is the "convex" shaped stood upside down.
Stud release type rifle head the most according to claim 1, it is characterised in that the bottom of described mandrel is connected with the top of described compressing member.
Stud release type rifle head the most according to claim 1, it is characterised in that the cross section on the top of described mandrel is that the top of hexagon or described mandrel is provided with square opening.
CN201620246138.4U 2016-03-28 2016-03-28 Stud release formula rifle head Withdrawn - After Issue CN205415502U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105598913A (en) * 2016-03-28 2016-05-25 重庆超力高科技股份有限公司 Stud release type gun head
CN110883534A (en) * 2019-11-22 2020-03-17 河南飞龙(芜湖)汽车零部件有限公司 Hexagon screw tightening device for mounting electronic water pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105598913A (en) * 2016-03-28 2016-05-25 重庆超力高科技股份有限公司 Stud release type gun head
CN105598913B (en) * 2016-03-28 2017-03-22 重庆超力高科技股份有限公司 Stud release type gun head
CN110883534A (en) * 2019-11-22 2020-03-17 河南飞龙(芜湖)汽车零部件有限公司 Hexagon screw tightening device for mounting electronic water pump
CN110883534B (en) * 2019-11-22 2020-11-10 河南飞龙(芜湖)汽车零部件有限公司 Hexagon screw tightening device for mounting electronic water pump

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