CN2929295Y - One-step operation finished wall anchor - Google Patents

Abstract

A one-pass operation wall anchor, which comprises a screw with head, an outer sleeve that is provided outside the screw and a un-rotatable drill that is provided at the end of the screw, wherein the outer sleeve is equipped with a sleeve body with two ends of which one end is provided with a male screw and a blocking edge, the other end that provided with a combining part which is connected with deformable part that is arranged by a plurality of interval part between the external screw thread and the combining part, the central point of the outer sleeve is provided with punch holes that through the two ends which the hole diameter on the external screw thread is bigger than the screw, and another hole diameter on the combining part is smaller than the screw. When fixing the wall anchor on the wall, operating the rotation screw, drilling a hole on the wall by the drill and making the external screw thread on the outer sleeve located in the hole on the wall, then the another combining part will rotate after the bringing of the screw, twist under the draw of the disformation part, shift toward the end of the external screw thread, and make all the deformable parts twist and expand outward as a cochleiform.

Description

The wall anchor that once-through operation is finished

Technical field

The utility model is the technical field that belongs to clamp structure, refers to that especially a kind of can disposablely placing be fixed on the wall, in order to the wall anchor of fixed wall hook.

Background technique

Tradition is fixed in the wall mode of (comprising gypsum board, plastic board, plank or concrete wall) with object, be to hammer in the middle of the wall with steel nail, again to be exposed to this section of metope steel nail hook object, yet, because an end of steel nail bears weight, cause it to be placed through this end of wall and form toward the power that upwarps, dig bigger and bigger the hole on the wall and not very loading, at this moment, promptly need object displacing is retightened.

Because tradition is firm inadequately in the mode of steel nail fixed object, therefore there is the dealer to design a kind of " wall anchor " of two formulas, it comprises that a screw and is sheathed on the outer plastic cement system sleeve of screw, during operation, subscribe position boring with electric drill at wall earlier, again plastic cement system sleeve is placed through in the hole, then screw is screwed in the middle of the sleeve, make the sleeve perisporium expand outward and embed in the wall, sleeve can't be deviate from, and screw is fixed on the wall.

Though above-mentioned general wall anchor can improve the problem that steel nail comes off, yet, because its mode of operation is to need to hole on wall with drill bit earlier, again the plastic cement sleeve is hammered into, screw is screwed into, operation is quite inconvenient.So, but there is the dealer further to design the wall anchor that a kind of once-through operation is finished again, promptly direct spiral shell is established a plastic cement sleeve outside screw, screw is piercing in this end of plastic cement sleeve and is provided with bit head, directly on wall, to hole, but the wall anchor that this kind once-through operation is finished also is no lack of the monopolist of getting permission, as No. the 5147166th, U. S. Patent (hereinafter to be referred as the reference case, for convenience of description, directly quote the component symbol of its specification), it has comprised the driving element 70 that a bolt is made, one is placed through the body element 22 on the driving element 70, one spiral shell is located at the nut 50 on the driving element 70, and one spiral shell establish the drill member 60 that is fixed in driving element 70 ends, wherein, this body element 22 is sheetmetals, it comprises that one is placed through the head 24 on the driving element 70, two deformable part 26 of extending by head 24 peripheries, be located at an inner arm 38 of two deformable part, 26 ends respectively, one outer arm 40, inner arm 38 and outer arm 40 both sides are a penetration hole 46 respectively, two deformable part 26 of this body element 22 are to extend towards nut 50 these sides, and inner arm 38 and outer arm 40 are bent into arc in opposite directions, its penetration hole 46 is involutory;

And nut 50 also is a metallic, its periphery wall is provided with two relatively radially outstanding bumps 52, and two relatively radially outstanding adjutages 54, by two bumps 52 be placed through inside and outside arm 38,40 involutory penetration hole 46, two adjutages 54 then bend extension towards drill member 60 these ends.

Its mode of operation, be directly to rotate driving element 70, drill member 60 by end is directly holed on wall, and body element 22 is placed through on the wall, continues rotation driving element 70, up to head 24 blocks of body element 22 till metope, when continuing rotation driving element 70, can be so that nut 50 rotation and towards head 24 these end movements of body element 22, make the bending deflection and be blocked in the wall perforation toward the outer side of two deformable part 26, body element 22 promptly can't be deviate from.

Though above-mentionedly do not need in addition earlier boring, and the drill member 60 of directly being located at driving element 70 ends is holed on wall, and force the deformable part 26 of body element 22 to extend out distortion with reference to case, outstanding to place restrictions on body element 22.Yet it still has following disappearance:

1. it needs driving element, body element, nut and drill member four big members, so its member is various.

2. after body element and the nut punch forming, also will bend again, then place assembling with the outstanding bump of nut, required number of assembling steps is more.

3. many and structural design is very complicated owing to its member is difficult for assembling, and causes that cost is higher, product price can't descend.

Summary of the invention

In order to improve the disappearance of above-mentioned reference case, but the wall anchor that main purpose of the present utility model is to provide that a kind of member is few, ease of assembly and once-through operation are finished.

Based on above-mentioned purpose, but the wall anchor that once-through operation that the utility model provides is finished, comprise: a screw, it comprises a head, be located at head wherein an end a screw part, be located at the connecting rod portion that screw part differs from this end of head, this screw part is provided with screw thread; One outer sleeve, be set in the screw part outside of screw, contiguous this end of screw head of outer sleeve is provided with a retaining edge, and contiguous this ring-like periphery wall of retaining edge is provided with outside thread, and the other end is provided with adapter section, in adapter section and be provided with on the outer sleeve perisporium between this section of outside thread, be interval with several and run through perisporium and axially extended profile groove, form a deformable part between two profile grooves, be provided with a joining hole in adapter section inside in addition, the internal diameter of this joining hole is greater than connecting rod portion and less than screw thread; One bit head is sheathed on the connecting rod portion of screw, mutually combine with the plane more than between connecting rod portion and the bit head, bit head differ from this end of connecting rod portion be provided with can the drilling wall blade, and the maximum outside diameter of blade is greater than the external diameter of outer sleeve.

Preferably, being Hexagon between connecting rod portion and the bit head combines.

Preferably, do not operating the wall anchoring before the wall, the joining hole of outer sleeve does not screw togather with the screw thread of screw part as yet, and the screw thread of screw part is a Thread Forming TF.

The wall anchor operating method that once-through operation is finished, this wall anchor is to comprise that one has the screw of head, one is placed through the outer outer sleeve of screw, and one can not freely rotate the bit head that shape is sheathed on tip of screw, contiguous this section of screw of this outer sleeve periphery wall is provided with outside thread, the other end is made as adapter section, be connected with several deformable part that are provided with at interval between this end of adapter section and outside thread, be provided with a perforation in the outer sleeve center, the piercing aperture that is positioned at this end of outside thread is greater than screw, and be positioned at the screw thread of the piercing aperture of this end of adapter section less than screw, during the operation rotary screw, by bit head drilling one hole on wall, and make outer sleeve be screwed into hole on the wall by its outside thread, continue rotary screw, promptly make the adapter section of outer sleeve and screw screw togather and be driven to rotate, threaded end displacement outward simultaneously, make each deformable part in the shape of a spiral shape reverse and expansion outwardly.

This screw is to be placed through between the male end and each deformable part of outer sleeve with the loose fit shape, and when being drive fit operation rotary screw with adapter section, by bit head drilling one hole on wall, and make outer sleeve be screwed into the hole that is fixed on the wall by its outside thread, extremely described retaining edge block is till wall surface, continue rotary screw, be screwed into the adapter section center of outer sleeve with its screw thread, make this adapter section along with deformable part is reversed in the screw rotation simultaneously, and then make adapter section this end movement of screw thread outward, each deformable part promptly in the shape of a spiral shape reverse and expansion outwardly.

Implement after the above-mentioned technological means, the obtainable concrete benefit of the utility model is:

1. operating method provided by the utility model is after rotary screw, a wherein end of outer sleeve is fixed on the wall, and in addition end rotation and towards this side displacement of wall, make its deformable part in the shape of a spiral shape reverse and outwardly the expansion, thereby on wall, its operation is very fast convenient with the wall anchoring; Again, if screw need be withdrawed from the time, the counterrotating screw, can so that screw withdraw from outward, to bit head support and outer sleeve till, screw being extracted out outward can be so that bit head and screw disengaging again.

2. because outer sleeve of the present utility model is single design, that is, after manufacturing is finished, do not need through other assembly program, can screw togather with screw, need be to improve the above-mentioned reference case with the disappearance that two members are in addition crooked, assembling can be formed deformable outer sleeve.

3. owing to be to cooperate between screw of the present utility model and the bit head with the plane more than, make between the two and can't relatively rotate, but screw is when spiral shell moves back outward, extracting screw out promptly breaks away from bit head, but with reference between case driving element (being screw of the present utility model) and the drill member for screwing togather, so when spiral shell moves back screw, need to continue counterrotating both are broken away from, so screw is withdrawed from the more convenient operation of design of the present utility model.

4. because composition member of the present utility model only has an outer sleeve, a screw and a bit head, its member is few, can assemble fast, significantly reduces cost.

Description of drawings

Fig. 1 is a forward sight combination schematic representation of the present utility model.

Fig. 2 is a side-looking partial cutaway schematic of the present utility model.

Fig. 3 is the sectional perspective generalized section that outer sleeve of the present utility model has screwed togather with screw.

Fig. 4 is that the part plan that outer sleeve of the present utility model oneself and screw screw togather amplifies diagrammatic sketch.

Fig. 5 be the utility model with outer sleeve and screw the act of operation schematic representation on wall.

Fig. 6 is the act of operation schematic representation that the utility model screws out screw.

Fig. 7 is the schematic perspective view that the utility model is fixed in the planar hook on wall.

Fig. 8 is the schematic perspective view that the utility model is fixed in the pedestal of Show stand on wall.

Fig. 9 is that the utility model is pulled out screw and coupler body is fixed in the schematic perspective view of outer sleeve.

Figure 10 is that the utility model is assembled in the schematic perspective view for the treatment of fixture in advance.

Description of reference numerals:

10, 10A screw 11,11A head

110 slot parts, 12 screw part

120 screw threads, 13 connecting rod portions

20 outer sleeves, 200 mobile terminals

202 perforation of 201 retaining edge

21 adapter sections, 22 joining holes

23 outside threads

24 profile grooves, 25 deformable part

30 bit head

31 grooves, 32 blades

40 coupler bodies, 41 tapping screws

45 hooks, 46 hook portions

50 walls, 51 holes

61 perforation of 60 pedestals

70 treat fixture 71 perforation

Embodiment

See also shown in Fig. 1 front elevation and Fig. 2 side-looking part sectioned view, wall anchor provided by the utility model is to comprise a screw 10, one outer sleeve 20 that is placed through on the screw 10 and can establishes with screw 10 spiral shells, one is incorporated into the bit head 30 of screw 10 ends with removable shape, wherein, screw 10 is to comprise a head 11, be located at the wherein screw part 12 of an end of head 11, be located at the connecting rod portion 13 that screw part 12 differs from head 11 these ends, the external diameter of head 11 is greater than screw part 12, and be provided with the slot part 110 that can supply tool head to place in the end of head 11, this slot part 110 can be made as quadrilateral, Hexagon or cross, in addition, head 11 periphery walls can also be made as Hexagon, for the sheathed rotation of sleeve; And the perisporium of screw part 12 is provided with screw thread 120, and the contiguous connecting rod of screw thread 120 portions 13 these ends are made as carefullyyer, that is outstanding screw part 12 surfaces are less, and contiguous head 11 these ends are made as thicker, but make it be the self tapping shape.

Described outer sleeve 20 is hollow sleeves of a plastic cement system, it has two ends, its contiguous bit head 30 these ends are defined as mobile terminal 200, the other end is provided with a radially outstanding retaining edge 201, be provided with the perforation 202 of an internal diameter greater than screw thread 120 external diameters in outer sleeve 20 centers, place for screw part 12, contiguous retaining edge 201 this section outer periphery are provided with outside thread 23, but this outside thread 23 is to be the self tapping shape, that is be made as thinner towards the screw thread of bit head 30 these ends, the screw thread of contiguous retaining edge 201 these ends is made as thicker, and 200 places, outer sleeve 20 contiguous mobile terminals are provided with an adapter section 21, be provided with joining holes 22 coaxial with perforation 202 in adapter section 21 inside, this joining hole 22 is towards the cone shape hole of free end convergent, and the aperture of joining hole 22 is between the screw thread 120 of the connecting rod portion 13 of screw 10 and screw part 12, that is, before not operating the utility model, this joining hole 22 normalities following is not screw togather with the screw thread 120 of screw part 12, after waiting to operate, the side makes screw thread 120 self tappings of screw part 12 enter joining hole 22, on outer sleeve 20 perisporiums between adapter section 21 and the outside thread 23, form several in addition and extend axially and run through the profile groove 24 of perisporium, between two road profile grooves 24, to form the deformable part 25 that to be reversed.

Closing with combining of screw part 12 about joining hole 22 internal structures of the present utility model is please to consult simultaneously shown in Fig. 3,4, Fig. 3, the 4th, the corresponding situation that is screwed into joining hole 22 perisporiums of the screw thread 120 of screw part 12, because joining hole 22 internal diameters are less than screw thread 120, so can improve surface friction drag, drive adapter section 21 rotations when making screw 10 rotations simultaneously.

Multiple by Fig. 3 and Fig. 1, shown in 2 as can be known, wherein end in bit head 30 is provided with the groove 31 that can place for the connecting rod portion 13 of screw 10, the blade of holding periphery wall then to be formed with on wall, to hole in other 32, and the outer periphery ultimate range of blade 32 is the external diameters greater than outer sleeve 20, between the connecting rod portion 13 of screw 10 and the groove 31 with the plane more than cooperatively interact (its preferable Hexagon that is made as), make between bit head 30 and the connecting rod portion 13 and can't relatively rotate, in addition, the utility model further binds with resin between connecting rod portion 13 and groove 31, this resin is the conjugation that can improve both, but when screw 10 is pulled out, both are broken away from.

Above-mentioned is composition member of the present utility model, its be fixed on the metope mode of operation as shown in Figure 5, before not operating, outer sleeve 20 is not screw togather with screw 10, bit head 30 of the present utility model supported with blade 32 and wall 50 on, and be sheathed on rotation on the head 11 of screw 10 with electric tool, promptly can on wall 50, drilling form a hole 51, and because the outer periphery of bit head 30 are greater than outer sleeve 20, outer sleeve 20 is able to smoothly by hole 51, outside thread 23 self tapping spiral shells to outer sleeve 20 are located in the hole 51, and to keep off edge 201 blocks till wall 50 surfaces.

At this moment, the head 11 of screw 10 still forms a segment distance with wall 50 surfaces, and since outer sleeve 20 wherein an end be fixed on the wall 50 by outside thread 23, the adapter section 21 that is positioned at the other end then is screwed into by screw 10 self tappings, both form drive fit, so when continuing rotary screw 10, can so that adapter section 21 by screw 10 driven rotary, make deformable part 25 torsional deflections of outer sleeve 20 simultaneously, make adapter section 21 shift to outside thread 23 these ends, the outer periphery of deformable part 25 expand outwardly, and form the block effect on wall 50, and outer sleeve 20 can't be deviate from.

In the time of if screw 10 need being extracted, as shown in Figure 6 with screw 10 counterrotatings, promptly can screw out outward by screw 10, arrive to bit head 30 till the mobile terminal 200 of outer sleeve 20, again screw 10 is extracted outward promptly and can be broken away from bit head 30, outer sleeve 20 is fixed on the wall 50, is fixed on the outer sleeve 20 according to required object is placed for the user.

Earlier figures 5 shows the utility model respectively once to attack the nail mode outer sleeve 20 and screw 10 to be fixed in wall 50 with Fig. 6; And the action that screw 10 can be pulled out, by shown in as can be known, as long as the utility model do rotary screw action can so that the deformable part 25 of outer sleeve 20 in the shape of a spiral shape reverse and expand outwardly, thereby be fixed on the wall 50, its operation is very convenient, and the utilization scope is extremely wide, its can be as illustrated in fig. 7 head 11 by screw 10 laminal hook 45 is fixed on the metope, link up with that 45 surfaces are prominent again establishes a hook portion 46, hang for object; Can also be as shown in Figure 8, be fixed on the wall in order to pedestal 60 Show stand, be interval with a plurality of V-type perforation 61 on the pedestal 60, this preferred embodiment is with the corresponding flat-head shape with cross recess that is made as of the head 11A of screw 10A, the perforation 61 that bit head 30 and outer sleeve 20 are passed pedestal 60, the nail of once attacking of then implementing earlier figures 5 moves, the head 11A of screw 10A then is fixed in the perforation 61 of pedestal 60, promptly pedestal 60 can be fixed on the wall, be interval with a plurality of inserting holes 62 on the pedestal 60, place for the pole (not shown), displaying plate is set up on the pole of two pedestals 60, again for article display.

Again, the blind rivet of earlier figures 6 action, after screw 10 is pulled out, the user can be as shown in Figure 9 with a coupler body 40 with tapping screw 41, be screwed into its tapping screw 41 in the perforation 202 of outer sleeve 20, be hung on the coupler body 40 for article.

Earlier figures 7,8,9 embodiment's wall anchor with treat fixture be separate independent, that is the user can buy the wall anchor back, operation will treat that fixture is fixed in metope again, in addition, it can also be as shown in figure 10, screw part 12 with screw 10 is placed through the perforation 71 (fixture 70 for the treatment of shown in graphic is a kind of wall hooks) for the treatment of fixture 70 in advance, again outer sleeve 20 and bit head 30 are placed and be assembled on the screw part 12, the user buys whole group wall anchor back and treats fixture 70, promptly can comply with aforesaid mode of operation, outer sleeve 20 is fixed in the wall, and will treats that with screw 10 fixture 70 is fixed in metope.

Claims (3)

1. the wall anchor that once-through operation is finished is characterized in that, comprising:

One screw, it comprises a head, be located at head wherein an end a screw part, be located at the connecting rod portion that screw part differs from this end of head, this screw part is provided with screw thread;

One outer sleeve, it is the screw part outside that is set in screw, contiguous this end of screw head of outer sleeve is provided with the radially outstanding retaining edge of a ring, the ring-like periphery wall of contiguous retaining this section of edge is provided with outside thread, the other end is provided with adapter section, on the outer sleeve perisporium between adapter section and this section of outside thread, be interval with multiple tracks and run through perisporium and axially extended profile groove, between two profile grooves, form a deformable part, be provided with a joining hole in adapter section inside in addition, the aperture of this joining hole is greater than connecting rod portion, and less than the screw thread of screw part; One bit head is the connecting rod portion that is sheathed on screw, mutually combine with the plane more than between connecting rod portion and the bit head, but bit head differs from the blade that this end of connecting rod portion is provided with the drilling wall, and the maximum outside diameter of blade is greater than the external diameter of outer sleeve.

2. the wall anchor that once-through operation as claimed in claim 1 is finished is characterized in that, is Hexagon between this connecting rod portion and the bit head and combines.

3. the wall anchor that once-through operation as claimed in claim 1 or 2 is finished is characterized in that the screw thread of this screw part is a Thread Forming TF.

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