CN217421783U - Installation accessory - Google Patents

Abstract

The utility model discloses an installation fitting, which comprises at least two mutually exclusive expansion blocks, wherein the peripheral surface of an expansion part is provided with a butt structure which is propped against the hole wall of a superposed installation hole of two parts to be installed, and a pre-positioning structure is realized through mutual repulsion force; the inner edge of the prepositioning structure is provided with an embedded block. The utility model discloses wholly have two parts, firstly lie in the peripheral inflation piece that is the components of a whole that can function independently structure, secondly at the embedding piece of inflation piece inner edge, the repulsion through inflation piece each other supports and leans on in waiting the hole site of installation, has actually played like the similar fixed action of expansion bolts, the embedding piece that is equipped with in addition can play the additional strengthening to this fixed, and the function of embedding piece also defines by oneself, can select interference or clearance fit's relation, thereby realize fixed mounting and slidable mounting.

Description

Installation accessory

Technical Field

The utility model relates to a fixed component technical field specifically is an installation accessory.

Background

Most of the existing expansion bolts are disposable products, and are difficult to restore after use, so that the expansion bolts have certain limitations in use scenes.

However, the expansion fixing mode is very superior, for example, the installation is simple, the appearance is attractive, and therefore, the applicant intends to improve the existing expansion fixing structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an installation accessory to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a mounting accessory comprising an insert and an annular array of expansion blocks surrounding the insert;

in the mounting state, the mounting fittings are accommodated in the mounting holes of the components, the expansion block limits the components to axially displace along the mounting holes, and the embedded block extends axially along the mounting holes;

a guide block is arranged between the expansion block and the embedding block, and the expansion blocks have a trend of being far away from or close to each other along the arrangement direction of the guide block.

Preferably, the guide block is accommodated between the opposite surfaces of the adjacent expansion blocks, and the guide block is fixedly connected to the embedded block or the expansion block and is in sliding connection with the other expansion block or the embedded block.

Preferably, the opposite faces of the expansion blocks are provided with magnetic blocks.

Preferably, the magnetic blocks are symmetrically arranged on two sides of the guide block.

Preferably, the opposite surfaces of the expansion blocks are provided with springs or elastic sheets, one force bearing end of each spring or elastic sheet abuts against one expansion block, and the other force bearing end of each spring or elastic sheet abuts against the expansion block on the opposite side.

Preferably, the spring or the elastic sheet is sleeved on the guide block.

Preferably, the circumferential surface of the expansion block is provided with an abutting structure for abutting against the hole wall of the mounting hole to increase the friction with the hole wall in the axial direction of the mounting hole.

Preferably, the embedded block is in interference fit with the expansion block.

Preferably, the embedded mass and the expansion mass have a tendency to magnetically attract or repel each other.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses wholly have two parts, firstly lie in the peripheral inflation piece that is the components of a whole that can function independently structure, secondly at the embedding piece of inflation piece inner edge, support and lean on in waiting the hole site of installation through the repulsion force that the inflation piece is each other, actually played if the similar fixed action of expansion bolt, the embedding piece that is equipped with in addition can play the additional strengthening to this is fixed, and the function of embedding piece also defines by oneself, can select interference or clearance fit's relation, thereby realize fixed mounting and slidable mounting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

FIG. 4 is a schematic structural view of the split insert block of the embodiment;

FIG. 5 is a schematic view of the structure of the split inserts repelling each other;

FIG. 6 is a schematic view of an application scenario of a fixture;

fig. 7 is a schematic diagram of the structure of the embodiment in which the repulsion is realized by using a spring.

FIG. 8 is a schematic diagram of the structure for implementing repulsion by spring plate according to the embodiment

Detailed Description

In order to facilitate the use, the embodiment of the utility model provides an installation accessory. The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the examples of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The present embodiment provides a mounting fitting, and referring first to fig. 7, the first application scenario of the present embodiment is via connection between two hole-containing members, which may be link members or plates.

The fixing piece is provided with at least two expansion blocks, wherein the quantity of the expansion blocks can be set according to the size and the layout of the connecting parts in the actual situation; at least two expansion blocks are not specifically limited, and the expansion blocks are not integrated structures and are split structures.

Next, referring to fig. 1 and 2, only the simplest unit of "two expansion blocks" will be described in detail. The two expansion blocks are a first expansion block 2 and a second expansion block 33 respectively; after the number of the expansion blocks is determined, the profile structure of the expansion blocks needs to be designed, the structure based on the mounting hole in the structural design is taken as an example of the round hole in fig. 7, when the expansion blocks are used, the circumferential surfaces of the expansion blocks need to abut against the hole wall, so that the circumferential surfaces of the expansion blocks are designed into arc-shaped structures which are close to or equal to the profile curvature of the hole wall of the round hole in order to be stressed uniformly and improve the fixing effect. If the quad slit also is the reason, the inflation piece is used for global and the pore wall adaptation of butt pore wall can.

Finally, the insert 1 is a part which is accommodated between the expansion blocks, so that the structural design of the insert 1 should be based on the number and distribution of the expansion blocks.

Referring to fig. 3 and 4, when the two expansion blocks are bilaterally symmetrical, the embedding block 1 between the opposite surfaces of the two expansion blocks only needs to have two side surfaces opposite to the expansion blocks; if the expansion blocks are more than two and are distributed in central symmetry, the side surfaces of the embedded block 1 are arranged between the opposite surfaces of each expansion block and correspond to the expansion blocks (the principle and the action of the embedded block are described in the following of the embodiment one by one). Referring to the case of fig. 3, four expansion blocks correspond to the insertion block 1 having a cross-shaped section.

The expansion blocks have a mutually repelling force in the mounted state, so that they can be pre-fixed in the holes shown in fig. 7, and finally the insertion block 1 is inserted for functional mounting.

The term "functionally mounted" as used herein refers to the intended function of the two parts being connected relative to the fastener, including fastening and sliding.

In a preferred embodiment of the present invention, the magnetic component is used to realize the repulsive force, that is, two magnets are disposed on the desired opposite surface of the expansion block to realize the repulsive force.

Taking fig. 1 and fig. 2 as an example, the specific structure is as follows: the second expansion block 3 and the first expansion block 2 are designed into a circular arc outer side surface structure, the inner side surface is designed into a plane structure, and the embedded block 1 is designed into a double-plane side wall structure (shown in a specific reference). For convenience of production and assembly, the second expansion part 3 and the first expansion block 2 may be provided in the same standard structure. A magnetic part is embedded in the part, and the magnetic part can adopt a permanent magnet or an electromagnet (the embodiment only takes the permanent magnet as an example). Meanwhile, magnetic parts (14 and 16 in the figure) are also embedded in the embedded block 1, and the magnetic parts of the second expansion block 3/the first expansion block 2 correspond to the magnetic parts in the embedded block 1 in position, so that the state shown in figure 2 is formed, and attraction or repulsion between adjacent parts is realized. The guide portion is further provided as a guide rail structure 4 as shown in fig. 2, the guide rail structure 4 penetrates the insertion block 1 to connect the second expansion block 3 and the first expansion block 2, in this embodiment, the second expansion block 3 is used as a fixed end of the guide rail, an avoidance hole 15 (which is also used as a guide groove of the guide rail) is formed in the insertion block 1 based on a path of the guide rail, and a guide groove slidably connected to the guide rail is also formed in the first expansion block 2. It is worth mentioning that the path of the guide is in the middle of the two magnetic parts, as clearly shown in the figure by the structure of the insert 1 (15 in the position in the middle between 167 and 14), and the extension direction of the guide is parallel to the magnetic repulsion/attraction direction.

It is worth mentioning that repulsion between the expansion blocks can be achieved by using contact-mounted components such as springs or elastic pieces, and specifically refer to fig. 7 and 8. In the figure, A is a spring and B is a spring plate.

It should be noted here that the expansion blocks referred to above are preferably the same fitting structure, and referring to fig. 3, that is, the shape structure of each expansion block is the same, and is equivalent to a whole (with respect to a hole with symmetrical structure), and several blocks are equally divided as the expansion blocks, which is a preferred embodiment of the present invention. But could in principle also be unequal, i.e. unequal for each expansion block. As shown in fig. 4, the region 1a can be regarded as an expansion block or a part of an embedded block. In other words, although the insert block may be designed to function as an expansion block after being divided, the divided design may also function as the insert block itself with respect to the space between adjacent expansion blocks. Specifically to fig. 4, the region 1a and the central region are repulsive for abutment against the wall of the hole, but the region 1a and the expansion mass may be either repulsive or attractive.

In addition, at the position where the peripheral sides of the first expansion block 2 and the second expansion block 3 are butted with the connecting hole (if the embedded block is of a split structure and is used for being butted with the connecting hole, the structure should be arranged at the periphery of the connecting hole), a butting structure is arranged for preventing the connecting hole from being separated (refer to X in the figure), a slotted mode is adopted in the figure 1 so as to be matched with the inner wall of the connecting hole, and when in connection, the two invisible inner walls of the connecting hole are placed in the slot, so that the separation prevention and the stability are realized. In other preferred embodiments of the present invention, a protruding point structure or an embedded rubber ring structure can be further provided to increase the friction at the place, so as to prevent falling.

The design of "functional installation" is mainly divided into two functions, namely a fixing function and a sliding function.

The design comprises the following steps: the embedded block 1 is accommodated in the expansion block in an interference manner, and the expansion block is further abutted against the hole wall.

The embedded block 1 and the expansion block are both of a mutually attracting structure, and taking the magnetic part as an example here, the surface of the embedded block 1 opposite to the expansion block is provided with a magnetic part attracting (a steel material may be adopted, or a magnet separately installed and attracted with the magnet of the expansion block may be adopted). It should be noted here that in the attraction scheme, the two expansion parts still abut against the hole wall, and at least limit the axial displacement of the hole wall to prevent the hole wall from falling off. The advantage of this scheme is that its fixed effect is obvious, but also possesses certain sliding effect, can regard embedding piece 1 as a longer slide rail, and the inflation piece takes the mounted part can realize the slip stop in this slide rail optional position.

The insertion block 1 attracts and repels a part of the expansion blocks, and in the case shown in fig. 1, for example, the insertion block 1 attracts and repels the first expansion block 2 and the second expansion block 3, so that the above-described scheme, which has a relatively significant fixing effect based on all the attracting schemes, has a sliding capability and has a small sliding friction force with respect to the above-described scheme, can also achieve a relatively significant fixing effect.

The embedded block 1 and all expansion blocks repel each other to form a sliding structure similar to magnetic suspension.

In conclusion, the user can adopt the scheme to realize the effect of the specific application scene. It is worth mentioning that the axial length of the insert 1 according to the invention need not be limited, that is to say that the above-mentioned solutions can be allowed to coexist on the insert 1 at the same time. For example, on one segment of the insert, a fully attracting segment, a fully repelling segment, or a semi-attracting and semi-repelling segment may be provided.

It is worth mentioning here that the separate insertion blocks (see fig. 4 and 5) form a repulsive force in an oblique direction (the arrow in fig. 5 is the direction of force) therebetween, and since the separate insertion blocks are located between the expansion blocks, the oblique repulsive force forms two force components, one of which presses the separate insertion block 1a against the hole wall, and the other of which presses the separate insertion block 1a against the expansion block in the oblique direction. Thereby improving the fit of the fixing piece and the hole wall. The repulsive force between the embedded pieces here can also be applied by magnetic means. A spring or a leaf spring.

With respect to installation, the overall installation process is actually two deformation processes for the fixture itself, from compression to expansion, based on the structural design of the fixture as described above.

Taking the installation scenario of fig. 8 as an example, and taking the installation scenario of fig. 6 as an example, the installation position on the figure is completely exposed to the outside. The fixing piece can be directly held by a hand to compress and then placed into the mounting hole to release so as to be expanded and fixed. For convenience of operation, several points of force for clamping may be provided on the fixture. One of the force points is inevitably placed on the expansion part 2 and the other force point is placed on the positioning part 3 or the reference part 1. Before installation, the two force application points are controlled to be close to each other so as to realize a compression state, and after the two force application points enter the installation position, the two force application points are released so as to expand.

How the "force points" are set: in this embodiment, a hole is formed, and similar to the installation scenario of fig. 8, the hole can be pinched by a finger directly to compress or release the hole. In addition to the use of an opening, a step is also extended from the end of the body to perform the force application function.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A mounting accessory, its characterized in that: comprises embedded blocks and expansion blocks which surround the embedded blocks in an annular array;

in the installation state, the installation fittings are accommodated in the installation holes of the components, the expansion block limits the axial displacement of the components along the installation holes, and the embedding block extends axially along the installation holes;

a guide block is arranged between the expansion block and the embedding block, and the expansion blocks have a trend of being far away from or close to each other along the arrangement direction of the guide block.

2. A mounting accessory as claimed in claim 1, wherein: the guide block is fixedly connected to the embedded block or the expansion block and is in sliding connection with the other expansion block or the embedded block.

3. A mounting fitting according to claim 2, wherein: and the opposite surface of the expansion block is provided with a magnetic block.

4. A mounting fitting according to claim 3, wherein: the magnetic blocks are symmetrically arranged on two sides of the guide block.

5. A mounting fitting according to claim 2, wherein: and a spring or an elastic sheet is arranged on the opposite surface of the expansion block, one stress end of the spring or the elastic sheet abuts against one expansion block, and the other stress end abuts against the expansion block on the opposite side.

6. A mounting fitting according to claim 5, wherein: the spring or the elastic sheet is sleeved on the guide block.

7. A mounting accessory as claimed in claim 1, wherein: the global butt structure that is provided with of inflation piece for support and lean on the pore wall of mounting hole, the increase with the axial friction of pore wall at the mounting hole.

8. A mounting fitting according to claim 7, wherein: the abutting structure is a groove structure arranged on the circumferential surface of the expansion block.

9. A mounting accessory as claimed in claim 1, wherein: the embedded block is in interference fit with the expansion block.

10. A mounting accessory as claimed in claim 1, wherein: the embedded block and the expansion block have the tendency of magnetic attraction or repulsion.

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