CN204716683U - Fixing device - Google Patents

Abstract

The utility model provides a kind of fixing device, include sleeve, fixed element, outer cap sleeve body and sheet material, wherein this sleeve inner has through center hole, and place is provided with the concave ring groove of reduced outside diameter below the ring raised body of center hole exterior bottom, and place is provided with the bulge loop pedestal that external diameter is greater than ring raised body below concave ring groove, fixation element head bottom surface place is penetrated to the shaft of downward-extension and fixing part in the center hole of sleeve again, and elastic element is arranged with on shaft, and the head of fixed element is combined with the outer cap sleeve body that external diameter is not more than ring raised body, just sleeve can be penetrated from lower to upper in the through hole of sheet material, and make outer cap sleeve body by behind through hole, punch process produces deformation in sheet material and makes its formation riveting part, through-hole wall face place and part buckle in concave ring groove again, and riveting part is coated on and convex ring seat external surface is formed longitudinally with horizontal spacing, structural strength on sheet material is riveting in strengthen sleeve, improve the overall shearing resistance intensity that can bear.

Description

Fixing device

Technical field

The utility model provides a kind of fixing device, espespecially sleeve is penetrate from lower to upper in the through hole of sheet material, and punch process sheet material makes formation riveting part, through-hole wall face place and buckle is coated on bulge loop pedestal and forms longitudinal direction and cross spacing in the concave ring groove of sleeve, be riveting in structural strength on sheet material to strengthen sleeve, improve the overall shearing resistance intensity that can bear.

Background technique

Press, general sheet material (plate is to plate) is when assembling, engaging, the set screw with knob, the collar and screw is utilized to give interlocking, screw, the collar are first fixed on outer field panel by it, first turn knobs and form preset location for the panel that internal layer locked by screw, recycling hand tools is by after screw lock, outer panel and internal layer panel interlocking is then made to determine integral, the interlocking pattern of this kind of multilayer plate body, by applying to machine tool or other plates are used the sheet material that plate connects, these so described machine tools need to use sheet material to carry out interlocking place, it is mostly the position such as power plant or speed regulating device, and various power plant, speed regulating device is positioned at the interior volume that machine case is formed, sheet material Moveable assembled can be utilized, interlocking, dismounting mode, when power plant occur when machine or fault, during damage, or speed regulating device carries out the change of speed, during adjustment, sheet material is unloaded the maintenance divided by carrying out being correlated with, adjustment operation, and sheet material is locked by plural set screw, so easily cause coming off of set screw in unloading process, lose, then cannot lock back sheet material original position again again, impact assembling, tear inconvenience and the trouble of operation open.

Namely dealer is had to be the shortcoming that solution locking screw is easily lost, develop the fixing device formed by means of cap bag, screw part and positioning seat, first the positioning seat button of fixing device is fixed in the perforation of sheet material, recycling screw part interlocking is formed fixing on another sheet material, and when user unloads sheet material, fixing device is still fixed in the perforation of sheet material by positioning seat, and the situation that unlikely generation fixing device comes off or loses, so, the fixing device used at present, as shown in Figure 9, fixing device before application, must first positioning seat A be welded on sheet material B, positioning seat A side connecting part A1 is fixed on sheet material B, recycling accommodated inside space A0, lock member C1 for outer sleeve C inside wears, and outer sleeve C inside is provided with annular resisting part C2, by the annular resisting part C2 of outer sleeve C inside, be set in the ring raised body A2 at positioning seat A top, again with spring C11 sheathed on lock member C1, resilient abutment is inner against anchor ring A3 in containing space A0, for outer sleeve C Moveable assembled on positioning seat A, only this positioning seat A utilizes connecting part A1 to be located in the conjugate foramen B0 of sheet material B, and the backstop ring body A11 of connecting part A1 is on the solder B1 be attached to outside conjugate foramen B0, through reflow processing operation, make positioning seat A be positioned on sheet material B because of backstop ring body A11 and sheet material B area of contact quite little, bonding area is few, and cause the structural strength between the connecting part A1 of positioning seat A and sheet material B not enough, when causing outer sleeve C and positioning seat A to assemble, then outer sleeve C pulls the ring raised body A2 of positioning seat A by annular resisting part C2, because connecting part A1 weld strength is not enough, cause positioning seat A to be formed on sheet material B to loosen built on the sand, also or cause positioning seat A to depart from sheet material B.

Moreover, in order to solve above-mentioned positioning seat A and sheet material B assemble time, because bonding area is little, structural strength is not enough, easily cause the problem that positioning seat A loosens or departs from sheet material B, just dealer is had to develop the fixing device that positioning seat A can be positioned at by means of riveting method on sheet material B, as shown in Figure 10, the embedding post A12 of positioning seat A side connecting part A1 is located in from top to bottom the conjugate foramen B0 of sheet material B, and after processing riveted, the conjugate foramen B0 deformation rear section of sheet material B can be made to be embedded in the annular ditch groove A121 of embedding post A12, and rely on annular ditch groove A121 to be positioned at by positioning seat A on sheet material B not easily to loosen or come off, to strengthen the structural strength after locating between positioning seat A and sheet material B, but the connecting part A1 of this kind of positioning seat A is the mode of riveted in the conjugate foramen B0 of sheet material B from top to bottom, the external diameter of the embedding post A12 of connecting part A1 is greater than because of positioning seat A external diameter, cause outer sleeve C to be assembled on positioning seat A and be easily subject to external force drawing, the effect of shearing causes connecting part A1 to produce with the conjugate foramen B0 of sheet material B to come off or be separated, be need to be engaged in this journey dealer desire most ardently the place, direction that research improves.

Model utility content

Therefore, novel practical new design people is because above-mentioned existing problem and disappearance, be collect related data via assessment in many ways and consider, and utilize the research and development experience for many years engaging in the industry constantly to study and amendment, begin to design this kind of novel birth of fixing device.

For achieving the above object, the technical solution adopted in the utility model is:

A kind of fixing device, is characterized in that: include sleeve, fixed element, outer cap sleeve body and sheet material, wherein:

This sleeve inner has through center hole, and is provided with ring raised body in center hole exterior bottom, and below ring raised body, place is provided with the concave ring groove of reduced outside diameter, then place is provided with the bulge loop pedestal that external diameter is greater than ring raised body below concave ring groove;

This fixed element has the head being positioned at and locating above sleeve, and is extended with the fixing part located below the shaft and shaft that penetrate in center hole downwards at head bottom surface place, and shaft is arranged with the elastic element be positioned between sleeve and fixed element;

This outer cap sleeve body is incorporated on the head of fixed element, and be formed can the containing space of containing sleeve and fixed element in cap sleeve body inside outside, and outer cap sleeve body diameter is not more than the external diameter of ring raised body;

This sheet material includes at least one and can penetrate in wherein and the through hole that can pass through for outer cap sleeve body from lower to upper for sleeve, and be formed at through-hole wall face place and for producing deformation and part buckle during punch process in concave ring groove and be fastened in the riveting part that convex ring seat external surface is combined into one, can fasten for ring raised body and bulge loop pedestal and being positioned at riveting part place.

Wherein: the ring raised body apical margin of this sleeve is formed with downward-sloping tilted guide surface, formation temporarily location on bulge loop pedestal can be resisted against for sheet material through hole circumferential surface place along this tilted guide surface.

Wherein: be formed can be subject to stopping the stop surface forming longitudinal spacing for panel clinching portion adjacent to the lateral surfaces at concave ring groove place below the ring raised body of this sleeve, the bulge loop pedestal located below concave ring groove then can form cross spacing for the coated fixing in the riveting part of sheet material.

Wherein: the center hole top of this sleeve is provided with and supports shoulder, and supporting in shoulder the perforation being formed with and can being upward through for fixation element head, and perforation root edge is formed with towards center bore inner wall face place and can supports supporting surface thereon for elastic element one end.

Wherein: the head top surface place of this fixed element is upwards extended with the locating column that external diameter is less than this head top surface, and the binding block of protrusion is formed at locating column outer surface periphery place, and the limited ring groove caved inward below binding block, is formed adjacent to locating column place, and the containing space top of outer cap sleeve body is provided with end-to-end joint part, and be formed can penetrate in buckle hole wherein for locating column in end-to-end joint part centre, the blocked block being formed and being held in and being combined into one in limited ring groove and internal face place, buckle hole inwardly transfers.

Wherein: below the shaft of this fixed element, place is formed with the larger fixing part of external diameter, be formed adjacent to the lateral surfaces at shaft place and above fixing part and can support to arrive in thereon for the elastic element the other end and make fixing part extend out to the pushing tow face of sleeve convex ring seat external body.

Wherein: the external side periphery place of this outer cap sleeve is provided with pulling part, and on pulling part, be formed with the plural groove of annular arrangement, and outer cap sleeve body diameter is not more than the ring raised body external diameter of sleeve.

Wherein: this outer cap sleeve body top is provided with pulling part, and be formed with at pulling part the handle that size is less than outer cap sleeve body diameter, and outer cap sleeve body diameter is not more than the ring raised body external diameter of sleeve.

Compared with prior art, the advantage adopting the utility model of technique scheme to have is:

This sleeve inner of the present utility model has through center hole, and place is provided with the concave ring groove of reduced outside diameter below the ring raised body of center hole exterior bottom, and place is provided with the bulge loop pedestal that external diameter is greater than ring raised body below concave ring groove, fixation element head bottom surface place is penetrated to the shaft of downward-extension and fixing part in the center hole of sleeve again, and elastic element is arranged with on shaft, and the head of fixed element is combined with the outer cap sleeve body that external diameter is not more than ring raised body, just sleeve can be penetrated from lower to upper in the through hole of sheet material, and make outer cap sleeve body by behind through hole, punch process produces deformation in sheet material and makes its formation riveting part, through-hole wall face place and part buckle in concave ring groove again, and riveting part be coated on convex ring seat external surface formed longitudinally stop with laterally fix spacing, make the ring raised body of sleeve and bulge loop pedestal can fasten the riveting part place being positioned at sheet material, structural strength on sheet material is riveting in strengthen sleeve, improve the overall shearing resistance intensity that can bear.

In the process of sleeve of the present utility model and plate stamping, the internal mold borehole jack of tool can be placed in ring raised body and outer cap sleeve external body, and the punching press of coordinating operation platform makes its formation riveting part, through-hole wall face place produce deformation on sheet material after, just riveting part can be relied on to be subject to below ring raised body adjacent to the stop of the stop surface longitudinal direction at concave ring groove place and buckle, and riveting part to be coated on convex ring seat external surface horizontal fixing spacing after, the ring raised body of sleeve and bulge loop pedestal is made to be formed the double limitation effect of buckle and coated fixing by the riveting part of sheet material, when sleeve is subject to external force drawing, when rocking, still unlikely generation comes off or is separated, and formed with sheet material and to be combined closely and not easily crooked, and then reach structural stability, assemble firm and locate certain effectiveness.

In the utility model, when the head of fixed element and the end-to-end joint part of outer cap sleeve body are assembled, be first penetrate in the buckle hole of end-to-end joint part by the locating column at head top surface place, and force in outer cap sleeve body and make the blocked block at internal face place, buckle hole cross the binding block place at locating column outer surface periphery place, be held in the limited ring groove located below binding block again, and there is different colours, pattern etc. because of outer cap sleeve body, fixed element can be coordinated to carry out modularization docking group structure, be beneficial to the position etc. identifying using function (as locking or dismounting etc.) or mark location.

Accompanying drawing explanation

Fig. 1 is the three-dimensional exploded view of the utility model preferred embodiment;

Fig. 2 is the three-dimensional exploded view of the utility model fixing device;

Fig. 3 is the three-dimensional exploded view at another visual angle of the utility model fixing device;

Fig. 4 is the side elevational cross-section exploded view of the utility model preferred embodiment;

Fig. 5 is the side cutaway view of the utility model preferred embodiment before assembling;

Fig. 6 is that the utility model preferred embodiment is in the side cutaway view adding man-hour;

Fig. 7 is the side cutaway view of the utility model preferred embodiment after assembling;

Fig. 8 is the side cutaway view of another preferred embodiment of the utility model;

Fig. 9 is the side elevational cross-section exploded view of existing fixing device;

Figure 10 is the side elevational cross-section exploded view of another existing fixing device.

Description of reference numerals: 1-sleeve; 10-center hole; 11-ring raised body; 111-tilted guide surface; 112-stop surface; 12-concave ring groove; 13-bulge loop pedestal; 14-supports shoulder; 140-bores a hole; 141-supporting surface; 2-fixed element; 21-head; 211-locating column; 212-binding block; 2121-lead angle; 213-limited ring groove; 22-shaft; 23-fixing part; 231-pushing tow face; 24-elastic element; The outer cap sleeve body of 3-; 30-containing space; 31-end-to-end joint part; 311-buckle hole; 312-blocked block; 3121-guide ramp; 32-pulling part; 321-groove; 322-handle; 4-sheet material; 40-through hole; 41-riveting part; 5-working platform; 51-tool; Nib in 510-; 511-template face; A-positioning seat; A0-containing space; A1-connecting part; A11-backstop ring body; The embedding post of A12-; A121-annular ditch groove; A2-ring raised body; A3-is against anchor ring; B-sheet material; B0-conjugate foramen; B1-solder; C-outer sleeve; C1-lock member; C11-spring; C2-annular resisting part.

Embodiment

For reaching above-mentioned purpose and effect, the technological means that the utility model adopts and structure thereof, just preferred embodiment of the present utility model of hereby drawing illustrates that its structure is as follows with function in detail, understands completely in order to do profit.

Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, be respectively the side elevational cross-section exploded view of the three-dimensional exploded view of the utility model preferred embodiment, the three-dimensional exploded view of fixing device, the three-dimensional exploded view at another visual angle of fixing device and preferred embodiment, find out by knowing in figure, the utility model includes sleeve 1, fixed element 2, outer cap sleeve body 3 and sheet material 4, therefore with regard to the main member of this case and feature describe in detail as after, wherein:

This sleeve 1 inside has a longitudinally through center hole 10, and the ring raised body 11 of outwards turnover is provided with in center hole 10 exterior bottom, and ring raised body 11 apical margin is formed with downward-sloping tilted guide surface 111, and place is provided with and caves inward and the concave ring groove 12 of reduced outside diameter below the ring raised body 11 of sleeve 1, be formed with the stop surface 112 of smooth shape adjacent to the lateral surfaces at concave ring groove 12 place below its ring raised body 11, and place is provided with the bulge loop pedestal 13 of outwards turnover below concave ring groove 12, and bulge loop pedestal 13 outer diameter D 1 is for being greater than the outer diameter D 2 of ring raised body 11; Separately, what center hole 10 top of sleeve 1 was provided with inwardly turnover supports shoulder 14, and is supporting the perforation 140 being formed with reduced bore in shoulder 14, and perforation 140 root edges are formed with supporting surface 141 towards center hole 10 internal face place.

This fixed element 2 has the head 21 being positioned at place above sleeve 1, and be upwards extended with the less locating column of external diameter 211 in head 21 end face centre, and locating column 211 outer surface periphery place is formed with the binding block 212 of protrusion, downward-sloping lead angle 2121 is formed with again at binding block 212 apical margin, and the limited ring groove 213 caved inward below binding block 212, is formed adjacent to locating column 211 place, and head 21 bottom surface centre is extended with the shaft 22 that penetrates in center hole 10 downwards and forms the larger fixing part of external diameter 23 by place below shaft 22, and pushing tow face 231 is formed with adjacent to the lateral surfaces at shaft 22 place above fixing part 23, and this fixing part 23 preferably implements state for being only one in a bar shape, also can be formed with outside thread on fixing part 23 outer surface maybe can for the stop block fastened, the elastic element 24 be positioned between sleeve 1 and fixed element 2 is arranged with again on shaft 22.

This outer cap sleeve body 3 inside is formed can the containing space 30 of containing sleeve 1 and fixed element 2, its containing space 30 top is provided with the end-to-end joint part 31 that can combine location for head 21, and be formed with longitudinally through buckle hole 311 in end-to-end joint part 31 centre, and internal face place, buckle hole 311 is formed with the blocked block 312 of inwardly turnover, below blocked block 312, place is formed with downward-sloping guide ramp 3121 again, and outer cap sleeve body 3 is positioned at outer periphery place, end-to-end joint part 31 and is provided with pulling part 32, and on pulling part 32 outer surface, be formed with the plural groove 321 of annular arrangement, and this outer cap sleeve body 3 outer diameter D 3 is not more than the outer diameter D 2 of (being namely equal to or less than) ring raised body 11.

This sheet material 4 includes at least one through hole 40, and the through hole 40 internal diameter d of sheet material 4 is between bulge loop pedestal 13 outer diameter D 1 and ring raised body 11 outer diameter D 2, and better being embodied as slightly larger than ring raised body 11 outer diameter D 2 of the internal diameter d of this through hole 40 and be less than bulge loop pedestal 13 outer diameter D 1.

When the utility model is in time assembling, first by elastic element 24 for being sheathed on the shaft 22 of fixed element 2, and upwards penetrate the center hole 10 in sleeve 1 by head 21, and treat that head 21 is through perforation 140 place supporting shoulder 14, elastic element 24 one end can be made to be held in be supported on the supporting surface 141 of shoulder 14, and the other end of elastic element 24 supports to arrive on the pushing tow face 231 of fixing part 23 in after an elastic deformation, again the locating column 211 of head 21 upwards to be penetrated in the containing space 30 of outer cap sleeve body 3 and to be arranged in the buckle hole 311 of end-to-end joint part 31, and in the guide ramp 3121 making the lead angle 2121 of binding block 212 be held in blocked block 312 after, force presses on the effect that outer cap sleeve body 3 makes its blocked block 312 be subject to binding block 212 ejection downwards is again a resiliently deformable afterwards, and treat that blocked block 312 crosses binding block 212 place along lead angle 2121, just blocked block 312 can be combined into one via being held in limited ring groove 213 after the process of resiliently deformable and reset, rely on the elastic restoring force elasticity of elastic element 24 tools to support to arrive in after on the pushing tow face 231 of fixing part 23 simultaneously, fixing part 23 is made to extend out to bulge loop pedestal 13 outside of sleeve 1, and be linked in outer cap sleeve body 3 by the head 21 of fixed element 2 and be held on sleeve 1 downwards, and then make sleeve 1, fixed element 2 and outer cap sleeve body 3 present activity mated condition, and because outer cap sleeve body 3 is for being made up of plastic cement material and having different colours, pattern, mark etc., just fixed element 2 can be coordinated by outer cap sleeve body 3 to carry out modularization docking group structure according to actual application or user demand, be beneficial to the position etc. identifying using function (as locking or dismounting etc.) or mark location.

Please arrange in pairs or groups and consult Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, be respectively the side cutaway view of the utility model preferred embodiment before assembling, add the side cutaway view in man-hour, side cutaway view after assembling and the side cutaway view of another preferred embodiment, find out by knowing in figure, when sleeve 1 of the present utility model is assembled on sheet material 4, first sleeve 1 is penetrated from lower to upper in through hole 40 corresponding on sheet material 4, because outer cap sleeve body 3 outer diameter D 3 is not more than (being namely equal to or less than) through hole 40 internal diameter d with ring raised body 11 outer diameter D 2 of sleeve 1, so outer cap sleeve body 3 can be made smoothly by through hole 40 place, and utilize bulge loop pedestal 13 outer diameter D 1 for being greater than ring raised body 11 outer diameter D 2 and through hole 40 internal diameter d, make the through hole 40 circumferential surface place of sheet material 4 along tilted guide surface 111 landing downwards of ring raised body 11 or after being directly resisted against the temporary transient location of formation on bulge loop pedestal 13, again sleeve 1 and sheet material 4 are placed on operation working platform 5 carrying out punch process.

And sleeve 1 is with the process of sheet material 4 punching press, first by nib 510 in tool 51 for the ring raised body 11 being placed on sleeve 1 is outside with outer cap sleeve body 3, and through hole 40 circumferential surface of sheet material 4 is held in by the template face 511 of the smooth shape of interior nib 510 opening, just can utilize the interior nib 510 of tool 51 coordinate downward punching press after sheet material 4 makes its stressed generation deformation on the surface formation riveting part, through hole 40 internal face place 41 and part buckle in the concave ring groove 12 of sleeve 1, and the stop surface 112 making riveting part 41 be subject to ring raised body 11 stops that forming upper and lower longitudinal direction with buckle stops spacing, and transverse direction bulge loop pedestal 13 outer surface being coated on sleeve 1 by the riveting part 41 after sheet material 4 deformation being formed left and right fixes spacing, make the ring raised body 11 of sleeve 1 can fasten with bulge loop pedestal 13 riveting part 41 place being positioned at sheet material 4, and be combined into one in concave ring groove 12 by riveting part 41 buckle, to strengthen the structural strength that sleeve 1 is riveting in through hole 40 place of sheet material 4, also ring raised body 11 and bulge loop pedestal 13 can be relied on by the riveting part 41 of sheet material 4 to be formed the double limitation effect of buckle and coated fixing, and bulge loop pedestal 13 outer diameter D 1 is for being greater than the outer diameter D 2 of ring raised body 11, and there is the effect that sheet material 4 is clamped on difficult drop-off or separation on sleeve 1, when sleeve 1 is subject to external force drawing, when rocking, still unlikely generation has and comes off or be separated, and with sheet material 4 formed be combined closely not easily crooked, improve the overall shearing resistance intensity that can bear, and then reach structural stability, assemble firm and locate certain effectiveness.

But, on pulling part 32 outer surface of above-mentioned outer cap sleeve body 3, better enforcement is formed with the plural groove 321 of annular arrangement, outer cap sleeve body 3 is pulled upwardly by groove 321 place that just can press on pulling part 32, and the fixing part 23 being linked in fixed element 2 is retracted into the center hole 10 of sleeve 1 inner by the through hole 40 of sheet material 4, and the pushing tow face 231 of fixing part 23 upwards presses on elastic element 24 in a resiliently deformable displacement, its through hole 40 is made to be aligned with the spacing hole place of another sheet material (not shown) for laterally passing in sheet material 4, decontrol again after the pulling part 32 of outer cap sleeve body 3, just the elastic restoring force of elastic element 24 tools can be relied on to make fixing part 23 pass downwardly through the through hole 40 of sheet material 4 and penetrate form lock state in the spacing hole of another sheet material, or make the fixing part 23 of fixed element 2, to top offset, sheet material 4 and another sheet material be formed disengaged position by the mode of the outer cap sleeve body 3 of drawing, and pulling part 32 structural design mode set on outer cap sleeve body 3 top is a lot, also can be formed with at pulling part 32 handle 322 that size is less than outer cap sleeve body 3 outer diameter D 3.

Be with, the utility model is positioned at place below the ring raised body 11 of center hole 10 exterior bottom mainly for sleeve 1 and is provided with the concave ring groove 12 of reduced outside diameter, and place is provided with the bulge loop pedestal 13 that external diameter is greater than ring raised body 11 below concave ring groove 12, and penetrate place, fixed element 2 head 21 bottom surface in center hole 10 to the shaft 22 of downward-extension and fixing part 23, elastic element 24 is arranged with again on shaft 22, the head 21 of fixed element 2 is again combined with the outer cap sleeve body 3 that external diameter is not more than ring raised body 11, just can be penetrate from lower to upper in the through hole 40 of sheet material 4 by sleeve 1, and make outer cap sleeve body 3 by behind through hole 40 place, again punch process in sheet material 4 produce deformation make its formation riveting part, through hole 40 internal face place 41 and part buckle in concave ring groove 12, and riveting part 41 be coated on bulge loop pedestal 13 outer surface formed longitudinally stop with laterally fix spacing, ring raised body 11 and bulge loop pedestal 13 is made to fasten the double limitation effect that riveting part 41 place being positioned at sheet material 4 forms buckle and coated fixing, to strengthen the structural strength that sleeve 1 is riveting in through hole 40 place of sheet material 4, improve the overall shearing resistance intensity that can bear, external force drawing is subject in order to do making sleeve 1, when rocking, unlikely generation comes off or is separated, and with sheet material 4 formed be combined closely not easily crooked, and then reach structural stability, assemble firm and locate certain effectiveness.

More than illustrate the utility model just illustrative; and nonrestrictive, those of ordinary skill in the art understand, when not departing from the spirit and scope that claim limits; many amendments, change or equivalence can be made, but all will fall within protection domain of the present utility model.

Claims (8)

1. a fixing device, is characterized in that: include sleeve, fixed element, outer cap sleeve body and sheet material, wherein:

This sleeve inner has through center hole, and is provided with ring raised body in center hole exterior bottom, and below ring raised body, place is provided with the concave ring groove of reduced outside diameter, then place is provided with the bulge loop pedestal that external diameter is greater than ring raised body below concave ring groove;

This fixed element has the head being positioned at and locating above sleeve, and is extended with the fixing part located below the shaft and shaft that penetrate in center hole downwards at head bottom surface place, and shaft is arranged with the elastic element be positioned between sleeve and fixed element;

This outer cap sleeve body is incorporated on the head of fixed element, and be formed can the containing space of containing sleeve and fixed element in cap sleeve body inside outside, and outer cap sleeve body diameter is not more than the external diameter of ring raised body;

This sheet material includes at least one and can penetrate in wherein and the through hole that can pass through for outer cap sleeve body from lower to upper for sleeve, and be formed at through-hole wall face place and for producing deformation and part buckle during punch process in concave ring groove and be fastened in the riveting part that convex ring seat external surface is combined into one, can fasten for ring raised body and bulge loop pedestal and being positioned at riveting part place.

2. fixing device according to claim 1, is characterized in that: the ring raised body apical margin of this sleeve is formed with downward-sloping tilted guide surface, and can be resisted against formation temporarily location on bulge loop pedestal for sheet material through hole circumferential surface place along this tilted guide surface.

3. fixing device according to claim 1, it is characterized in that: be formed can be subject to stopping the stop surface forming longitudinal spacing for panel clinching portion adjacent to the lateral surfaces at concave ring groove place below the ring raised body of this sleeve, the bulge loop pedestal located below concave ring groove then can form cross spacing for the coated fixing in the riveting part of sheet material.

4. fixing device according to claim 1, it is characterized in that: the center hole top of this sleeve is provided with and supports shoulder, and supporting in shoulder the perforation being formed with and can being upward through for fixation element head, and perforation root edge is formed towards center bore inner wall face place and can supports supporting surface thereon for elastic element one end.

5. fixing device according to claim 1, it is characterized in that: the head top surface place of this fixed element is upwards extended with the locating column that external diameter is less than this head top surface, and the binding block of protrusion is formed at locating column outer surface periphery place, and the limited ring groove caved inward below binding block, is formed adjacent to locating column place, and the containing space top of outer cap sleeve body is provided with end-to-end joint part, and be formed can penetrate in buckle hole wherein for locating column in end-to-end joint part centre, the blocked block being formed and being held in and being combined into one in limited ring groove and internal face place, buckle hole inwardly transfers.

6. fixing device according to claim 1, it is characterized in that: below the shaft of this fixed element, place is formed with the larger fixing part of external diameter, and be formed adjacent to the lateral surfaces at shaft place can support to arrive in thereon for the elastic element the other end and make fixing part extend out to the pushing tow face of sleeve convex ring seat external body above fixing part.

7. fixing device according to claim 1, is characterized in that: the external side periphery place of this outer cap sleeve is provided with pulling part, and on pulling part, be formed with the plural groove of annular arrangement, and outer cap sleeve body diameter is not more than the ring raised body external diameter of sleeve.

8. fixing device according to claim 1, is characterized in that: this outer cap sleeve body top is provided with pulling part, and is formed with at pulling part the handle that size is less than outer cap sleeve body diameter, and outer cap sleeve body diameter is not more than the ring raised body external diameter of sleeve.