CN2596093Y

CN2596093Y - Expanding type wall gecko nail

Info

Publication number: CN2596093Y
Application number: CN 03203789
Authority: CN
Inventors: 林炎增; 邱坤民
Original assignee: JUYA MACHINERY CO Ltd
Current assignee: JUYA MACHINERY CO Ltd
Priority date: 2003-02-19
Filing date: 2003-02-19
Publication date: 2003-12-31
Anticipated expiration: 2013-02-19

Abstract

The utility model relates to an expanding type wall gecko nail which comprises one body, one roller ball, one push element, etc. The front end of the body is provided with a plurality of longitudinal slots, and a plurality of clamp sheets which can expand outwards are formed. The front end of the inner part of the body is provided with a cone-shaped hole which is gradually enlarged from the outside to the inside. The roller ball is arranged in the cone-shaped hole. The outer diameter of the roller ball is larger than the minimal inner diameter of the cone-shaped hole. The back section position of the body is provided with inner screw threads where the push element is arranged. The periphery of the push element is provided with outer screw threads which are matched with the inner screw threads. The utility model can rotate the push element by a tool, makes the push element move forwards, forces the clamp sheets to expand outwards by the roller ball in order to reach the fixation effect, and has the advantages of safety, labour saving, no screw tooth damage, etc.

Description

The interior formula gecko nail of compeling

Technical field

The utility model relates to a kind of interior formula gecko nail of compeling, mainly utilizing internals to force gecko to follow closely an end expands outwardly, to reach fixing purpose, the utility model further utilizes a ball to be arranged at inside, in the process of expansion, resistance is low can be slided again along expansion, and more laborsaving, more convenient in the use.

Background technique

Tradition gecko nail can be distinguished outer formula or the interior urgent formula gecko nail of compeling, all be to utilize the mode of knocking to make gecko follow closely an end to expand outwardly in the use, with the fixing purpose that reaches, but strength is uncontrollable owing to knocking, and easily causes the wall be full of cracks, and the gecko nail all has been embedded in the hole of wall on knocking the rear surface, but in fact whether gecko nail front end really expands outwardly fully, and reach the intensity of pre-estimating, from can't see in appearance at all, have potential danger.If compel formula gecko nail in using, when knocking, need in addition in the instrument plant gecko nail, as when knocking, injuring thread because of carelessness, the gecko nail can't be used.

Therefore inventor of the present utility model is several years ago in regular turn to two patents of Taiwan Patent Office application, and check and approve on record through Taiwan Patent Office, wherein one is " the gecko nail " of No. the 345247th, notification number, it mainly is provided with a push piece in the thread locking mode in gecko nail body, be provided with taper hole in the body in addition and make a conus portion setting wherein, can make it produce displacement to radially by the rotation push piece, and promote this conus portion displacement, the body front end is expanded outwardly, owing to adopt engage thread between push piece and the body, can control its actual shift length accurately, guarantee that front end expands outwardly really, to reach splendid fixed effect; Yet, in the use because conus portion and inner body wall area of contact are big, conus portion and push piece also have big area of contact, and the frictional force size is directly proportional with applied force and area of contact, so push piece revolves in the process of propelling in commentaries on classics, frictional force between member is excessive, especially more near the back segment process of expansion packing, and more difficult the rotation.

Another part then is " the gecko nail appends " of No. the 390394th, notification number, it mainly makes push piece and these two members that separate of conus portion of female case into an identical shaped solid memder circular cone push piece, its using method and principle are identical with female case, and can reach identical fixed effect; Yet in use, the conical bore of this circular cone push piece and body interior also has big contact friction area, and the circular cone push piece also has frictional force excessive, the shortcoming that is not easy to rotate in the back segment process that rotation advances; Moreover, because the gecko nail is not the processing of superprecision, when actual production, the body front end is after fluting forms several pieces clamping sheets that can expand outwardly, its peripheral concentricity is promptly accurate inadequately, the circular cone push piece after processing the time concentricity of its tapering also accurate inadequately, the circular cone push piece is arranged at when rotating in the body, easily produce the slight eccentricity phenomenon, more difficult when the circular cone push piece is rotated.

Summary of the invention

Main purpose of the present utility model provides a kind of interior urgent formula gecko nail laborsaving and easy to use; can accurately control the state of gecko nail front end expansion in use; guarantee to obtain splendid fixed effect; and in the process of expansion packing; very laborsaving and convenient the use replaces the shortcoming that traditional gecko nail knocks with the Hammer head.

For reaching above-mentioned purpose, compel formula gecko nail in the utility model design is a kind of, it comprises a body, a ball and a push piece, offer the clamping sheet that can expand outwardly at this body front end, inner leading portion then is provided with taper hole, and this ball then is arranged in this taper hole, and fragment position then is provided with internal thread behind the body, this push piece is arranged at this place, and its periphery is provided with outside thread and this screw-internal thread fit; By utilizing instrument to rotate this push piece it is advanced, and utilize ball to move to force this clamping sheet to expand outwardly, to reach the expansion fixed effect along taper hole.

Use the interior formula gecko nail of compeling of the present utility model, have following several concrete effects:

1. the gecko nail is in expansion packing process, laborsaving and quick and convenient: owing to be to utilize ball as the member that struts body leading portion clamping sheet, be all a little between this ball and push piece and the body or line contacts, so in the process of this push piece of rotation, the frictional force that is produced between the member is less, so the resistance minimum is very laborsaving and quick.

2. easy processing, not too need consider the problem of concentricity: owing to utilize ball to be arranged at gecko nail inside, it can adjust the contact position with inner body wall voluntarily, if and its central point is not on the center line of push piece, this push piece still can easily rotate, adding that ball can easily buy, and non-special processing, can reduce production costs thus.

3. can precisely control gecko nail body front end expansion state, further obtain more certain packing fixed effect: utilize push piece in body, to rotate and the displacement that produced, be may command ball displacement distance, make gecko nail body front end expand outwardly state, really be the required result of user, and then produce splendid fixed effect.

4. do not hinder thread: compeling the gecko nail in the tradition need knock, so can injure thread, uses structure of the present utility model, does not then have this problem.

5. easy to use: gecko nail of the present utility model can be built-in type, promptly after wall bores a hole, the gecko nail is fixing wherein, utilize its screw for other object locking, be arranged at usually on the wall of ceiling board, tradition gecko nail must knock from bottom to top with hammer fixedly the time, very effort is inconvenient again, the structure of utilization the utility model, insert in the hole after, screw with instrument and to get final product, fast convenient.

For clear understanding detailed process of the present utility model and technology contents, cooperate the following drawings and detailed description, understand spiritual place of the present utility model in the hope of knowing:

Description of drawings

Fig. 1 is a stereogram of the present utility model;

Fig. 2 is an exploded view of the present utility model;

Fig. 3 is a sectional drawing of the present utility model;

Fig. 4 is the actual generalized section that is used in wall of the utility model;

Fig. 5 is another embodiment's of the utility model a stereogram;

Fig. 6 delivers to the tensile test report that Industrial Technology Research Institute does for the utility model gecko nail.Among the figure

1 body, 3 push pieces

11 grooves, 31 outside threads

12 clamping sheets, 32 hole clippings

13 taper holes, 4 walls

14 internal threads, 41 holes

2 balls

Embodiment

As Fig. 1,2, shown in 3, for compeling the stereogram of formula gecko nail in the utility model, exploded view and sectional drawing, it comprises a body 1, one ball 2 and a push piece 3 etc., offer several at this body 1 front end and slot 11 longitudinally, and form several pieces clamping sheets that can expand outwardly 12, the leading portion of this body 1 inside then is provided with taper hole 13 (as Fig. 3), and the position is about clamping sheet 12 front end inside, and then fragment position then is provided with internal thread 14, the convergent direction of this taper hole 13 and chi footpath, internal thread 14 connecting part are maximum, successively decrease in regular turn, these push piece 3 peripheries are provided with outside thread 31, and screw thread 14 places within this body 1 that is spirally connected, this ball 2 then is arranged between taper hole 13 and the push piece 3 in the body 1, the external diameter of this ball 2 at least its need greater than the internal diameter in taper hole 13 stage casings; As shown in Figure 4, in use, can utilize instrument to rotate this push piece 3 and make the displacement of its generation to taper hole 13 directions, push the displacement that ball 2 produces equidirectional simultaneously, because of the relation of taper hole 13, when moving, ball 2 also force this clamping sheet 12 to expand outwardly, and make external diameter become big, to reach the fixing effect of expansion packing, be fixed on firmly in the hole 41 of wall 4.

The periphery of this body 1 can be bestowed coarse processing, as the shallow slot of embossing, open loop shape or form barb-likely etc., in the present embodiment, directly bestow embossing to handle in the periphery of clamping sheet 12, when increasing expansion with the frictional force of wall hole wall, the increase fixed effect.

As shown in Figure 3, the convergent mode of the taper hole 13 in this body 1 can be linear or non-linear, near these taper hole 13 front-end positions in this enforcement (promptly the end that joins with internal thread 14) are non-linear convergent, section shape is circular arc camber, middle section position is a linear tapered, and section shape takes the form of inclined plane, and the position of taper hole 13 back segments then is non-linear convergent, its last aperture that forms is minimum, breaks away from body 1 to prevent ball 2 in process of expansion.And the shape of taper hole 13 also can whole process be adopted non-linear convergent mode, make the section of taper hole 13 be the circular arc camber of different curvatures, also can produce identical expansion effect, in other words, the shape of taper hole 13 of the present utility model is not only for shape of the present utility model, and the visual actual form demand of using freely changes curvature.

As shown in Figure 2, the end of this push piece 3 is provided with a hole clipping 32, its shape is decided according to employed engagement tool, in the present embodiment, employed instrument is a hexagon wrench, so this hole clipping 32 is the hole of hexangle type depression, if employed instrument is a word bottle opener, this hole clipping then changes the hole of rectangle depression into, if employed instrument is the hexangle type sleeve, this push piece end then may form the hexangle type body (as shown in Figure 5) of evagination; In other words, this push piece 3 is according to employed instrument, makes its tip engages form required shape.

As shown in Figure 5, implement illustration for the utility model is another kind of, it mainly extends push piece 3a, these push piece 3 local exposed external worlds of stretching out during use, generally speaking, this kind gecko pin structure is used for ground more, and machine can directly be put on it, be locked on the push piece 3 with nut again, get final product the position of stationary machines, and gecko shown in Figure 1 nail can be considered built-in type, is used on the wall of ceiling board more, need a bolt to be locked on the body of gecko nail during use in addition, object is hung on it.

As shown in Figure 6, for the utility model gecko nail is delivered to the tensile test report that Industrial Technology Research Institute does, wherein two are tried body (A, C) rotate with manpower, examination body B then strengthens screwing with the torsion power of pulling, by test report as can be known, each gecko is followed closely its power that can bear 1000KG at least, loosening phenomenon just can take place afterwards, being curve transfers the position of curve to by oblique line, and system passes the power that the gecko nail only can bear 300～500KG usually, therefore soundness of the present utility model and safe, and screw the intensity that can reach required by manpower, convenient and strength-saving, have the fact of promoting effect, meet the value that industry is utilized.

The above person is a preferred embodiment of the present utility model only, is not the scope that is used for limiting the utility model embodiment.Be all variation and modifications of being done according to the utility model claim, all contained by claim of the present utility model.

Claims

1. compel formula gecko nail in one kind, it comprises a body, a ball and a push piece, offering several at this body front end slots longitudinally, and form the clamping sheet that several pieces can expand outwardly, the leading portion of this body interior is provided with taper hole, back fragment position then is provided with internal thread, this push piece is arranged at the internal thread place, its periphery is provided with outside thread and this screw-internal thread fit, it is characterized in that: be provided with a ball in this body, this ball is arranged between this taper hole and this push piece, and wherein the external diameter of this ball is greater than the minimum diameter of this taper hole.

2. compel formula gecko nail in as claimed in claim 1, it is characterized in that: the external diameter of this ball must be greater than the aperture in this taper hole stage casing.

3. compel formula gecko nail in as claimed in claim 1, it is characterized in that: the convergent direction of this taper hole and internal thread connecting part chi footpath are maximum, successively decrease in regular turn.

4. compel formula gecko nail in as claimed in claim 1, it is characterized in that: the convergent mode of this taper hole is a linear tapered.

5. compel formula gecko nail in as claimed in claim 1, it is characterized in that: the convergent mode of this taper hole is non-linear convergent.

6. compel formula gecko nail in as claimed in claim 1, it is characterized in that: this body front end periphery is provided with roughened surface and handles.

7. compel formula gecko nail in as claimed in claim 1, it is characterized in that: the outer confined pressure of this body front end is provided with netted decorative pattern.

8. compel formula gecko nail in as claimed in claim 1, it is characterized in that: the length of this push piece can be greater than body length.

9. compel formula gecko nail in as claimed in claim 1, it is characterized in that: this push piece rear end is provided with a hole clipping that does not run through, and its shape is according to cooperating employed instrument to decide.

10. compel formula gecko nail in as claimed in claim 9, it is characterized in that: this push piece rear end hole clipping be shaped as hexagonal configuration, employed instrument is a hexagon wrench.