CN201187497Y

CN201187497Y - Manual rapid clamping and fixing stud

Info

Publication number: CN201187497Y
Application number: CNU200820007377XU
Authority: CN
Inventors: 何丽萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-27
Filing date: 2008-03-27
Publication date: 2009-01-28
Anticipated expiration: 2018-03-27

Abstract

The utility model discloses a manual rapid clamping double-screw bolt, which comprises a cap body and a columnar body. An internal cone-shaped trepan boring is formed on the cap body, the columnar body is in the shape of an external cone, a cap brim is formed at the conical bottom end of the columnar body, a round surface is formed at the conical head end of the columnar body, a vertical screwed flute is formed at the center of the round surface, the conical head end of the columnar body passes into the screwed flute from the conical bottom end of the cap body, so that the external conical surface of the columnar body matches and clamps with the internal conical surface of the trepan boring. The manual rapid clamping double-screw bolt can easily carry out clamping by manual operation without stamping equipment when in use, so as to effectively reduce production cost; and can be easily assembled in accordance with the user's demands, resulting in great convenience and freedom.

Description

Manually fix double-screw bolt fast

Technical field

The utility model relates to a kind of double-screw bolt with clamping structure, is specifically related to a kind of manually quick double-screw bolt for the treatment of in conjunction with on the object that fixes that double-screw bolt is located at.

Background technique

Many electronic packaging products traditionally when assembling, the pedestal when usually needing double-screw bolt is set on treating the object of combination as assembling, this double-screw bolt is arranged on one with locking mode or riveted mode to treat on the object of combination.

Electronics is purchased combining of the casing of dress in the product and host board, and also being needs to be provided with the pedestal (as shown in Figure 4) of double-screw bolt when assembling host board on casing; This double-screw bolt is 44 overwhelming majority all be arranged on the casing in the riveted mode.When implementing, on object 30, form a perforation 31 in advance, utilize the riveted mode 42 rivetings of riveted spare to be gone in the perforation 31 of object 30, riveted spare 42 is provided with screw channel 43, utilize the double-screw bolt 44 of another tool screw channels 45 of screw channel 43 locking of riveted spare 42 again, double-screw bolt 44 is fixed in operation on the object 30, the double-screw bolt 44 after this is fixing to finish, can supply spiral shell group one nut 41, also host board 40 or other relevant perimeter component (for example radiator or fan etc.) can be locked on the object 30.

But, in the above-mentioned riveted mode, operation on the object is gone in the riveting of riveted spare, need prefabricated press tool, and use punching equipment just can be implemented, obviously increased process cost like this, and when the change design, the problems such as revising die cost that expends has been arranged.

Summary of the invention

The purpose of this utility model is to provide a kind of manually quick double-screw bolt for the treatment of in conjunction with on the object that fixes that double-screw bolt is located at.

For reaching above-mentioned purpose, the concrete content of the utility model is:

A kind of double-screw bolt that manually fixes fast comprises a cap body, an object and a cylinder;

This cap body center is provided with a trepanning that is taper;

This object is provided with a perforation;

This cylinder is one to be the post jamb of taper, described post jamb bottom is provided with the shade of a diameter greater than post jamb, this post jamb top is one to be implanted in the screw channel in the cylinder, the taper post jamb top of this cylinder is passed and is protruded on this object by described perforation, and this cap body is fastened on this taper post jamb by the taper trepanning and locatees.

Wherein this taper trepanning and taper post jamb all are coniform.

Wherein the perforation of this object has one group of corresponding mutually horizontal edge at least, has one group of corresponding mutually non slip surface on the conical surface of the shade vicinity of this cylinder at least, and this non slip surface and this horizontal edge hold the location mutually.

Wherein this taper trepanning and taper post jamb all are pyramid.

Wherein the perforation of this object has the horizontal edge of locating on this pyramidal post jamb that is fastened in of one group of mutual correspondence at least.

Wherein be arranged with a packing ring between this cap body and the cylinder.

The outstanding height that is higher than object in the taper post jamb top of this cylinder wherein, and less than the height of cap body.

Wherein this object is a pcb board.

Wherein this object is a computer housing.

Wherein this taper trepanning and this taper post jamb form according to Morse's taper.

According to above-mentioned, taper trepanning of the present utility model and taper post jamb can be coniform on concrete enforcement.In addition, the perforation of described object can form at least one group of corresponding mutually horizontal edge, is formed with one group of corresponding mutually non slip surface on the conical surface of the shade vicinity of described cylinder at least, makes non slip surface and horizontal edge hold the location mutually; Perhaps taper trepanning and taper post jamb are made pyramid, and the perforation of object is formed with at least one group of corresponding mutually horizontal edge, locate in order to being fastened on this pyramidal post jamb.Can sheathed packing ring between described cap body and the cylinder, enhancing the fixing effect, and be difficult for getting loose, stability is strong.

The taper post jamb top of described cylinder protrudes in the height on the object, and less than the height of cap body, gets loose to prevent cylinder and cap body to be subjected to non-active hammer action.In addition, clamping structure of the present utility model may be implemented on the different objects, and all objects as described can be pcb board or computer housing, all can realize the effect that the utility model fixes fast.Described taper trepanning and this taper post jamb are made according to Morse's taper.

Effect of the present utility model is: use and just can finish fixing easily manually, need not use punching equipment, can effectively reduce production costs, and assembling is simple, can assemble voluntarily according to user's demand, has splendid convenience and freedom.

Description of drawings

Fig. 1: the three-dimensional exploded view that manually fixes double-screw bolt for the utility model fast.

Fig. 2: for the utility model double-screw bolt manually fast clamping structure be fastened in cut-away view on the object.

Fig. 3: for the utility model double-screw bolt manually fast clamping structure be fastened in object and lock and establish the cut-away view of host board.

Fig. 4: be the schematic representation of prior art application.

Embodiment

Below manually fast fix the composition of double-screw bolt and the effect that can produce with regard to the utility model, conjunction with figs. is described in detail as follows with preferred embodiment:

See also shown in Figure 1ly, a kind of double-screw bolt of the utility model manually fast fixes external member, is made up of a cap body 10, an object 30 and a cylinder 20;

Wherein these cap body 10 centers are formed with a trepanning 11 (as shown in Figure 2) that is taper;

Wherein these cylinder 20 tools one are the post jamb 25 of taper, and extend to form the shade 23 of a diameter greater than described post jamb 25 from cylinder 20 bottoms, and a screw channel 21 (as shown in Figure 2) of implanting in the cylinder 20 is formed on these post jamb 25 tops.

The utility model is made up of said structure, clamping structure of the present utility model can be implemented on (as Fig. 1 and shown in Figure 3) on the described object 30, on object 30, offer a perforation 31, the taper post jamb 25 of cylinder 20 passes perforation 31, shade 23 props up perforation 31 1 sides, taper post jamb 25 can be given prominence on object 30 be certain altitude, described cap body 10 is fastened on the taper post jamb 25 by taper trepanning 11, and the location.Therefore, the quick fixing usefulness in the time of can realizing assembled by hand easily.

Above-mentioned object 30 can be a casing (for example computer housing is known clearly as shown in Figure 1) for the treatment of with the electronic packaging product of lock dress host board 40 usefulness, or the equivalent object of other carrying or arrangement host board 40.On concrete enforcement, see also Fig. 1 and Fig. 3, for using a bolt 41 to wear to carry the schematic representation in the screw channel 21 that host board 40 back locks are loaded on described cylinder 20.

In addition, on another was implemented, this object 30 also can be pcb board, after clamping structure of the present utility model, purchases part and can lock dress in conjunction with radiator or fan etc., all belongs to application category of the present utility model.

On concrete enforcement, this taper trepanning 11 and taper post jamb 25 can specifically be implemented as coniform, the perforation 31 of this object 30 can be at least one group of corresponding mutually horizontal edge 32 (as shown in Figure 1), at least be formed with one group of corresponding mutually non slip surface 22 on the conical surface of shade 23 vicinities of described cylinder 20, therefore make non slip surface 22 and horizontal edge 32 hold the location mutually, cylinder 20 can not rotated arbitrarily on object 30.On the other hand, help this horizontal edge 32, also taper trepanning 11 and taper post jamb 25 can be made and be pyramid, locate and horizontal edge 32 is fastened on this pyramidal post jamb.

In addition, be fixed on the object 30 for helping cylinder 20 and cap body 10 can more stable group to establish, also can a sheathed packing ring 24 (as shown in Figures 1 and 2) between cap body and cylinder.

Moreover, got loose by non-active hammer action for preventing cylinder 20 and cap body 10, taper post jamb 25 tops of described cylinder 20 protrude in the height on the object 30, and smaller or equal to the height of cap body 10.

In addition, the utility model cylinder 20 protrudes in the self-locking performance principle that the conical surface of the conical surface that is certain altitude on the object and trepanning 11 cooperatively interacts and fixes, and can no longer be illustrated at this with reference to Morse's taper.

Though the utility model is described by previous embodiment, but still can change its form and details, make not breaking away under the spirit of the present utility model.Aforementioned is the most rational using method of the utility model, one of the mode that can specifically implement for the utility model only, but not as limit.

Claims

1, a kind of double-screw bolt that manually fixes fast comprises a cap body, an object and a cylinder, it is characterized in that:

This cap body center is provided with a trepanning that is taper;

This object is provided with a perforation;

2, the double-screw bolt that manually fixes fast as claimed in claim 1 is characterized in that wherein this taper trepanning and taper post jamb all are coniform.

3, the double-screw bolt that manually fixes fast as claimed in claim 2, it is characterized in that, wherein the perforation of this object has one group of corresponding mutually horizontal edge at least, has one group of corresponding mutually non slip surface on the conical surface of the shade vicinity of this cylinder at least, and this non slip surface and this horizontal edge hold the location mutually.

4, the double-screw bolt that manually fixes fast as claimed in claim 1 is characterized in that wherein this taper trepanning and taper post jamb all are pyramid.

5, the double-screw bolt that manually fixes fast as claimed in claim 4 is characterized in that wherein the perforation of this object has the horizontal edge of locating on this pyramidal post jamb that is fastened in of one group of mutual correspondence at least.

6, the double-screw bolt that manually fixes fast as claimed in claim 1 is characterized in that, wherein is arranged with a packing ring between this cap body and the cylinder.

7, the double-screw bolt that manually fast fixes as claimed in claim 1 is characterized in that, the outstanding height that is higher than object in the taper post jamb top of this cylinder wherein, and less than the height of cap body.

8, the double-screw bolt that manually fixes fast as claimed in claim 1 is characterized in that wherein this object is a pcb board.

9, the double-screw bolt that manually fixes fast as claimed in claim 1 is characterized in that wherein this object is a computer housing.