CN201925291U

CN201925291U - Improved wall nail structure

Info

Publication number: CN201925291U
Application number: CN2010206583951U
Authority: CN
Inventors: 黄献钲
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-14
Filing date: 2010-12-14
Publication date: 2011-08-10
Anticipated expiration: 2020-12-14

Abstract

The utility model relates to an improved wall nail structure. The improved wall nail structure comprises an expansion sleeve and an expansion mandrel, wherein the expansion sleeve is provided with an internal thread section, and a tapered groove with tapered groove width is arranged at the bottom of the internal thread section; a plurality of expandable and retractable claw parts are arranged at the other end of the expansion sleeve, the claw parts are separated by a plurality of axial channels, the axial channels are staggered in the axle center of the expansion sleeve, and the staggering part pass through and is connected to the groove bottom of the tapered groove; the expansion sleeve is annularly provided with a plurality of raised ribs opposite to one end of the claw parts; the expansion mandrel is provided with an external thread section to be screwed into the internal thread section of the expansion sleeve, the expansion mandrel is provided with a drivable rotary head at one end of the external thread section, a supporting part is arranged at the other end of the external thread section, the supporting part is tapered, and the tail end of the supporting part is tip-shaped. The improved wall nail structure has the following benefits: the structure is simple, the cost is reduced, and the structure is easy to assemble and disassemble so as to be convenient to use.

Description

Wall nail structure-improved

Technical field

The utility model relates to a kind of wall nail, refers to a kind of simple structure, easy-to-dismount wall pin structure especially.

Background technique

Now, existing wall pin structure be in order to mounting article in metope, and general wall pin structure all inserts after metope boring with electric drill in the use again, and by revolving the lock mode so that the wall nail is fixed in metope, and can reach the effect of object location.But, in the future if object will be removed the time, because the wall pin structure does not have the structural design of dismounting, the many people of event select to ignore and hide and collide the injured danger that waits, and if utilize cut mode to remove, then injure wall again easily and stay ugly vestige, moreover the wall nail that is removed can't be used again.

As shown in Figure 7, be existing wall pin structure, it is formed, and member comprises a built-up mandrel 90, an expansion sleeve 91, is adjusted pipe 92 and two nuts 93, this built-up mandrel 90 is screwed in this expansion sleeve 91 with its outside thread 900, and this expansion sleeve 91 is screwed in this adjustment pipe 92 with its outside thread 910, this built-up mandrel 90 is to protrude this adjustment pipe 92 with an end wherein, and the other end is to lock in regular turn to establish two nuts 93, and locks the setting position with this two nut 93 after this built-up mandrel 90 and expansion sleeve 91 are adjusted relative position.

As shown in Figure 8, in one hole 94 of inserting on the wall to be drilled with for existing wall pin structure, fix hexagon head 911 and this built-up mandrel 90 of turn of this expansion sleeve 91 during installing earlier with spanner, so that this built-up mandrel 90 withdraws from backward, and utilize the expansion-head 901 of this built-up mandrel 90 and the expansion pawl 912 of these expansion sleeve 91 front ends is strutted to stay on the hole wall in this hole 94, be sheathed on the hexagon head 920 of this adjustment pipe 92 with spanner again, and should adjust pipe 92 and in this hole 94, lock again, then can make the wall pin structure fixing in this hole 94, otherwise, can also counteragent and separate this built-up mandrel 90, expansion sleeve 91 and adjust pipe 92, and with this wall pin structure by separating in this hole 94.

Yet, though the wall pin structure after this improvement has reverse dismounting structure and reusable, but the wall pin structure that the member of its composition can't be separated than tradition is many, then easily cause the member cost to increase, and cause the step of installing comparatively loaded down with trivial details, then this problem is the emphasis place that the utility model institute desire solves.

The model utility content

The purpose of this utility model is to solve the above problems and a kind of wall nail structure-improved is provided, and follows closely on member more simple and easyly with relative reduction member cost by wall, and has its convenience concurrently on using.

For achieving the above object, the utility model is by the following technical solutions:

A kind of wall nail structure-improved, it comprises:

One expansion sleeve, it is axially being equipped with an internal thread segment inwardly by an end, and this internal thread segment has the awl groove of a groove width convergent in the bottom, and the bottom land of this awl groove is positioned on the axle center of this expansion sleeve; This expansion sleeve in the other end have several can be strutted or can in the claw that contracts and reset, respectively be to separate between this claw with some axial profile grooves, and respectively this profile groove is staggered on the axle center of this expansion sleeve, and staggered part is to run through and be connected in the bottom land of this awl groove; This claw one end is to be equipped with several protruding ribs to this expansion sleeve in differing from ring week respectively, and respectively this rib is to extend by the ring of this expansion sleeve is circumferentially outer;

One built-up mandrel, it is to have an external thread section, use turn in the internal thread segment of this expansion sleeve and can axial displacement in this expansion sleeve, but this built-up mandrel has the head of a rotary driving in an end of this external thread section, and the other end in this external thread section has a top brace part, this top brace part is taper and is formed with a conical surface, and its end is into a tip, this top brace part can carry out turn by described built-up mandrel and be moved in the awl groove of described expansion sleeve, and continue to stretch into the staggered place of each described profile groove, and move to shore out each claw with the conical surface of this top brace part awl trough wall surface along this expansion sleeve in this awl groove bottom land with its tip.

Described expansion sleeve has in axial direction the structure that fastens of concavo-convex arrangement in regular turn in each described claw surface.

Described fasten structure be several ring protuberances of establishing with radial ring and several circular rabbets on each described claw, be staggered in regular turn constituted.

Described head has a baffle ring portion in the bottom, this baffle ring portion has an anti-slip section that is dentation structure in the bottom surface.

The beneficial effects of the utility model are: simple structure reduce cost, thereby easy to assemble has a convenience of use.

The utility model is described in further detail below by accompanying drawing.

Description of drawings

Fig. 1 is a three-dimensional appearance constitutional diagram of the present utility model.

Fig. 2 is a three-dimensional appearance exploded view of the present utility model.

Fig. 3 is a cross-section structure side view of the present utility model.

Fig. 4 is a cross-section structure plan view of the present utility model.

Fig. 5 is a user mode schematic representation of the present utility model, is in order to show that this top brace part struts the respectively state of this claw.

Fig. 6 is a user mode schematic representation of the present utility model, is in order to show that this top brace part recesses the respectively state of this claw.

Fig. 7 is the three-dimensional exploded view of existing wall pin structure.

Fig. 8 is the assembled sectional view of existing wall pin structure.

Embodiment

See also Fig. 1 to Fig. 6, shown in the figure is the selected example structure of the utility model, and this only for the usefulness of explanation, is not subjected to the restriction of this kind structure in patent application.

The utility model provides a kind of wall nail structure-improved, and as shown in Figure 1, it is to comprise an expansion sleeve 1 and a built-up mandrel 2, is to establish a workpiece 3 in order to lock in present embodiment, wherein:

See also Fig. 2, Fig. 3, this expansion sleeve 1 is axially being equipped with an internal thread segment 10 inwardly by an end, and this internal thread segment 10 has the awl groove 11 of a groove width convergent in the bottom, and the bottom land of this awl groove 11 is rough to be positioned on the axle center of this expansion sleeve 1; This expansion sleeve 1 has several claws 12 in the other end, and respectively 12 of this claws are to separate with some axial profile grooves 13, and respectively this profile groove 13 is staggered on the axle center of this expansion sleeve 1, and staggered part is to run through and be connected in the bottom land of this awl groove 11.

This expansion sleeve 1 differs from respectively in ring week, and these claw 12 1 end ring are provided with several protruding ribs 14, respectively this rib 14 extends by the ring of this expansion sleeve 1 is circumferentially outer, and what this expansion sleeve 1 had in axial direction a concavo-convex arrangement in regular turn in these claw 12 surfaces respectively fastens structure 15, this fastens structure 15 in present embodiment, and to be several ring protuberances 150 of establishing with radial ring and several circular rabbets 151 be staggered on this claw 12 respectively in regular turn is constituted for it.

This built-up mandrel 2 has an external thread section 20, for revolving in the internal thread segment 10 that locks in this expansion sleeve 1 and can axial displacement in this expansion sleeve 1, but this built-up mandrel 2 has the head 21 of a rotary driving in an end of this external thread section 20, and the other end in this external thread section 20 has a top brace part 22, this top brace part 22 is to be taper and to be formed with a conical surface 221, and its terminal one-tenth one tip 220, this top brace part 22 can carry out turn by this built-up mandrel 2 and be moved in the awl groove 11 of this expansion sleeve 1 so that respectively this claw 12 of this expansion sleeve 1 can be strutted or can in contract and reset.

This head 21 has a baffle ring portion 23 in the bottom, this baffle ring portion 23 has an anti-slip section 230 that is dentation structure in the bottom surface, by these anti-slip section 230 contact workpieces 3, and can in fixedly the time, increase and the frictional force of 3 of this workpiece, get loose because of revolution to avoid this built-up mandrel 2.

As shown in Figure 3, when the wall of present embodiment is followed closely when using, earlier this expansion sleeve 1 is placed in the hole that wall has been drilled with, make to produce between respectively this rib 14 that this expansion sleeve 1 can protrude and the wall in the hole to stop and locate (as shown in Figure 3, Figure 4), and this expansion sleeve 1 is rotated to avoid this built-up mandrel 2 when the turn thereupon by this rib 14 respectively.

As shown in Figure 5, after this expansion sleeve 1 is positioned in the hole, can be by this head 21 of a tool drives so that 2 turns of this built-up mandrel, then the external thread part 20 of this built-up mandrel 2 begins to screw in the internal thread part 10 of this

expansion sleeve

1, and 22 axial displacements of the top brace part of this built-up mandrel 2 are to the awl groove 11 of this expansion sleeve 1, and when this built-up mandrel 2 screws in action once more, this top brace part 22 is to continue to stretch into respectively this profile groove 13 in this staggered place of staggered place A(of these awl groove 11 bottom lands A as shown in Figure 4 with its tip 220), and move to shore out each claw 12 with the conical surface 221 of this top brace part 22 awl groove 11 walls along this expansion sleeve 1, respectively this claw 12 again by in its surface set fasten structure 15 and can and hole in wall between produce and stop, can be firmly fixed in the hole so that wall is followed closely, and this workpiece 3 is fixed.

See also Fig. 6 again, if desire with wall nail when separating in the hole, it is this built-up mandrel 2 slightly to be revolved to move back earlier, so that respectively this claw 12 conical surface 221 that can remove these built-up mandrel 2 top brace parts 22 shore and in contract and reset, make between the wall of respectively this claw 12 and hole and there is no the strength of shoring, and this moment, the external thread section 20 of this built-up mandrel 2 still blocked the internal thread segment 10 that fastening is positioned at expansion sleeve 1, so can easily whole wall be followed closely by detaching in the hole.

By the visible advantage of the present utility model of above-mentioned explanation, be that the wall nail only is made up of an expansion sleeve 1 and a built-up mandrel 2, compared to existing wall pin structure, wall nail of the present utility model reaches the fixing effect of object with comparatively easy component composition, except can reducing the member cost, also can reach relatively and assemble effect fast, and it is detachable and do not undermine the convenience of wall nail or metope to have assembling back concurrently.

The above embodiment's announcement is in order to explanation the utility model, is not in order to restriction the utility model, so the displacement of the change of numerical value or equivalence element must be subordinate within the utility model claim protection domain such as.

By above detailed description, can make the understanding the utility model that those skilled in the art know that can reach aforementioned purpose really, the real regulation that has met Patent Law proposes patent application then.

Claims

1. a wall is followed closely structure-improved, it is characterized in that it comprises:

2. wall nail structure-improved as claimed in claim 1, it is characterized in that: described expansion sleeve has in axial direction the structure that fastens of concavo-convex arrangement in regular turn in each described claw surface.

3. wall as claimed in claim 2 nail structure-improved is characterized in that: described fasten structure be several ring protuberances of establishing with radial ring and several circular rabbets on each described claw, be staggered in regular turn constituted.

4. wall as claimed in claim 1 nail structure-improved, it is characterized in that: described head has a baffle ring portion in the bottom, and this baffle ring portion has an anti-slip section that is dentation structure in the bottom surface.