CN210686567U - Expansion bolt assembly - Google Patents
Expansion bolt assembly Download PDFInfo
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- CN210686567U CN210686567U CN201920858112.9U CN201920858112U CN210686567U CN 210686567 U CN210686567 U CN 210686567U CN 201920858112 U CN201920858112 U CN 201920858112U CN 210686567 U CN210686567 U CN 210686567U
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Abstract
The utility model relates to the technical field of soft base material wall connecting pieces, in particular to an expansion bolt assembly, which comprises an expansion piece and a locking piece, wherein the expansion piece is provided with a through hole which runs through the length of the expansion piece, and the locking piece is arranged in the through hole to ensure that the expansion piece expands; the expansion piece comprises a hollow cylinder, a left part and a right part, the left part and the right part are arranged on the same side of the hollow cylinder, the left part and the right part are arranged at intervals, and a locking piece arranged in the through hole drives the left part and the right part to expand towards the direction away from each other; the left part is provided with a plurality of left convex parts, and the left convex parts are positioned on one side of the left part far away from the right part; through tieing the sub-assembly design with the inflation to be expansion and retaining member, realize the high-speed joint of door frame or decorative board and wall body, improve the installation effectiveness, the use of expansion simultaneously, the increase expansion and the occlusal force of wall body improve the steadiness of installation and the security of using.
Description
Technical Field
The utility model relates to a soft base material wall connection spare technical field especially relates to an expansion bolt sub-assembly.
Background
In the building decoration field, need connect great bulky article in the wall body usually, if with the door frame connection at the wall body, perhaps connect the decorative board at the wall body, this kind of connection needs stable firm and durable, and the more hardware that adopts of current connected mode is connected, perhaps adopts the mode of bonding to connect, and current connected mode has characteristics with high costs, that the installation is consuming time, is difficult to be widely used.
Disclosure of Invention
In order to overcome the great volume article that exists among the prior art and wall connection's difficulty, the utility model aims to provide an expansion bolt sub-assembly realizes quick connection's purpose, reduce cost to improve the installation effectiveness.
In order to achieve the above purpose, the technical scheme of the utility model is that:
an expansion bolt assembly comprises an expansion piece and a locking piece, wherein the expansion piece is provided with a through hole penetrating through the length of the expansion piece, and the locking piece is arranged in the through hole to enable the expansion piece to expand;
the expansion piece comprises a hollow cylinder, a left part and a right part, the left part and the right part are arranged on the same side of the hollow cylinder, the left part and the right part are arranged at intervals, and a locking piece arranged in the through hole drives the left part and the right part to expand towards the direction away from each other;
the left part is provided with a plurality of left convex parts, and the left convex parts are positioned on one side of the left part far away from the right part.
Furthermore, the right part is provided with a plurality of right convex parts, and the right convex parts are positioned on one side of the right part far away from the left part.
Furthermore, the expansion part is provided with a limiting ring, the limiting ring is arranged on one side, away from the left part, of the hollow cylinder, and the limiting ring extends outwards from the outer wall of the hollow cylinder.
Furthermore, the expansion piece also comprises a connecting part, the connecting part is used for connecting the left part and the right part, and the connecting part is positioned at one end, far away from the hollow column body, of the left part.
Further, the connecting portion is located between the left member and the right member.
Furthermore, the expansion part further comprises a plurality of second protruding rings arranged on the outer wall body of the hollow cylinder body, and the second protruding rings are positioned at one end, far away from the left part, of the hollow cylinder body.
Further, retaining member includes prong portion, screw thread portion and spacing portion, screw thread portion begins at the prong portion and extends towards spacing portion spiral, screw thread portion includes a plurality of skewed tooth, the top tooth of skewed tooth inclines towards spacing portion direction.
Furthermore, the limiting ring is provided with a horn groove, and the horn groove is used for accommodating the limiting part to prevent the limiting part from protruding out of the limiting ring.
The utility model has the advantages that: through tieing the sub-assembly design with the inflation to be expansion and retaining member, realize the high-speed joint of door frame or decorative board and wall body, improve the installation effectiveness, the use of expansion simultaneously, the increase expansion and the occlusal force of wall body improve the steadiness of installation and the security of using.
Drawings
Fig. 1 is a schematic longitudinal sectional plan view of the present invention;
FIG. 2 is a schematic plan view of the expansion element of the present invention;
FIG. 3 is a schematic plan view of the locking member of the present invention;
FIG. 4 is a schematic longitudinal sectional view of the locking member of the present invention;
fig. 5 is a partially enlarged structural diagram of a portion a in fig. 4.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and accompanying drawings, which are not intended to limit the present invention.
Referring to fig. 1 to 5, an expansion bolt assembly of the present invention includes an expansion member 1 and a locking member 2, wherein the expansion member 1 is provided with a through hole 10 penetrating the length of the expansion member 1, the locking member 2 is installed in the through hole 10 to expand the expansion member 1, and preferably, the length of the locking member 2 is greater than the length of the expansion member 1;
the expansion piece 1 comprises a hollow column body 11, a left part 12 and a right part 13, wherein the left part 12 and the right part 13 are arranged on the same side of the hollow column body 11, the left part 12 and the right part 13 are arranged at intervals, the left part 12 and the right part 13 are symmetrically arranged by the central axis of a through hole 10, and the left part 12 and the right part 13 are respectively flicked left and right under the action of a locking part 2 to expand the expansion piece 1;
the left part 12 is provided with a plurality of left convex parts 121, and the left convex parts 121 are positioned on one side of the left part 12 away from the right part 13;
the right part 13 is provided with a plurality of right protrusions 131, and the right protrusions 131 are positioned on the side of the right part 13 away from the left part 12.
Specifically, in this embodiment, the expansion bolt assembly includes an expansion member 1 made of plastic and a locking member 2 made of metal, the expansion member 1 is provided with a through hole 10, the through hole 10 is disposed along the length direction of the expansion member 1, the expansion member 1 includes a left part 12 and a right part 13, the left part 12 is provided with a plurality of left protrusions 121, the right part 13 is provided with a plurality of right protrusions 131, when in use, the expansion member 1 is first driven into a prepared hole of a door frame or a decorative plate, then the locking member 2 is passed through the through hole 10, the locking member 2 is knocked to expand the locking member 2 and the expansion member 1 and further enter a wall body, a hollow cylinder 11 is partially left in the door frame or the decorative plate, the left part 12 and the right part 13 enter the wall body, when the locking member 2 passes through a gap between the left part 12 and the right part 13, the left part 12 and the right part 13 expand left and right respectively, so as to, the frictional force of right side convex part 131 and wall body increases simultaneously, and inflation piece 1 is connected with external wall body is firm, accomplishes being connected of door frame or decorative board and wall body, can use the rotatory retaining member 2 of screwdriver to make the inflation bolt sub-assembly get into door frame or decorative board respectively in the installation, also can directly strike retaining member 2 for inflation piece 1 gets into door frame and wall body in proper order, and connected mode convenient and fast improves the installation effectiveness.
Through tieing the sub-assembly design with the inflation for inflation piece 1 and retaining member 2, realize the high-speed joint of door frame or decorative board and wall body, improve the installation effectiveness, the use of inflation piece 1 simultaneously, the snap-in force of increase inflation piece and wall body improves the steadiness of installation and the security of using.
The expansion piece 1 is equipped with spacing ring 14, the spacing ring 14 is located hollow cylinder 11 and is kept away from left part 12 one side, spacing ring 14 outwards extends from hollow cylinder 11's outer wall, and the setting of spacing ring 14 prevents that the surface of expansion piece from sinking in the surface of door frame surface or decorative board, influences the planarization on door frame surface or decorative board surface.
The expansion piece 1 further comprises a connecting portion 15, the connecting portion 15 is used for connecting the left part 12 and the right part 13, and the connecting portion 15 is located at one end, away from the limiting ring 14, of the left part 12 and the right part 13.
The connecting part 15 is located between the left part 12 and the right part 13, and the left part 12 and the right part 13 are combined into a whole due to the arrangement of the connecting part 15, so that when the expansion piece 1 enters a door frame or a decorative plate or a wall body, the direction uniformity is realized, and the phenomenon that the left part 12 and the right part 13 are separated from each other left and right is avoided, and the installation of the door frame or the decorative plate and the wall body is influenced.
The expansion piece 1 further comprises a plurality of second protruding rings 16 arranged on the outer wall body of the hollow column body 11, the second protruding rings 16 are far away from the left part 12, the second protruding rings 16 are arranged, the firmness of connection between the expansion piece 1 and the door frame is improved, and the installation stability is improved.
Retaining member 2 includes prong 21, screw thread portion 22 and spacing portion 23, screw thread portion 22 begins at prong 21 and extends towards spacing portion 23 spiral, screw thread portion 22 includes a plurality of skewed tooth 221, the top tooth 2211 of skewed tooth 221 inclines towards spacing portion 23 direction, and the precedence of the entering inflation piece 1 of retaining member 2 is: the pointed part 21, the threaded part 22 and the limiting part 23, and finally, a part of the pointed part 21 protrudes out of the expansion piece 1, the inclined teeth 221 are arranged to facilitate the entering of the locking piece 2, the top teeth 2211 are in interference fit with the inner wall of the expansion piece 1, and the resistance of the expansion piece 1 is applied when the expansion piece is pulled out, so that the expansion piece is not easy to pull out, and the connection of the door frame or the decorative plate and the wall body is firmer.
The limiting ring 14 is provided with a horn groove, the horn groove is used for accommodating the limiting part 23 to prevent the limiting part 23 from protruding out of the limiting ring 14, so that the surface of the locking part 2 is flush with the surface of the expansion part 1, and the use attractiveness is improved.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (8)
1. An expansion bolt assembly, comprising: the expansion part is provided with a through hole penetrating the length of the expansion part, and the locking part is arranged in the through hole so that the expansion part expands;
the expansion piece comprises a hollow cylinder, a left part and a right part, the left part and the right part are arranged on the same side of the hollow cylinder, the left part and the right part are arranged at intervals, and a locking piece arranged in the through hole drives the left part and the right part to expand towards the direction away from each other;
the left part is provided with a plurality of left convex parts, and the left convex parts are positioned on one side of the left part far away from the right part.
2. The expansion bolt assembly of claim 1, wherein: the right part is provided with a plurality of right convex parts, and the right convex parts are positioned on one side of the right part, which is far away from the left part.
3. The expansion bolt assembly of claim 1, wherein: the expansion piece is provided with a limiting ring, the limiting ring is arranged on one side, away from the left part, of the hollow cylinder, and the limiting ring extends outwards from the outer wall of the hollow cylinder.
4. The expansion bolt assembly of claim 1, wherein: the expansion piece further comprises a connecting portion, the connecting portion is used for connecting the left component and the right component, and the connecting portion is located at one end, far away from the hollow column body, of the left component.
5. The expansion bolt assembly of claim 4, wherein: the connecting portion is located between the left member and the right member.
6. The expansion bolt assembly of claim 1, wherein: the expansion piece further comprises a plurality of second protruding rings arranged on the outer wall body of the hollow column body, and the second protruding rings are located at one end, far away from the left part, of the hollow column body.
7. The expansion bolt assembly of claim 3, wherein: the retaining member includes prong portion, screw thread portion and spacing portion, screw thread portion begins at the prong portion and extends towards spacing portion spiral, screw thread portion includes a plurality of skewed tooth, the top tooth of skewed tooth inclines towards spacing portion direction.
8. The expansion bolt assembly of claim 7, wherein: the limiting ring is provided with a horn groove, and the horn groove is used for accommodating the limiting part to prevent the limiting part from protruding out of the limiting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858112.9U CN210686567U (en) | 2019-06-06 | 2019-06-06 | Expansion bolt assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920858112.9U CN210686567U (en) | 2019-06-06 | 2019-06-06 | Expansion bolt assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210686567U true CN210686567U (en) | 2020-06-05 |
Family
ID=70897880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920858112.9U Active CN210686567U (en) | 2019-06-06 | 2019-06-06 | Expansion bolt assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210686567U (en) |
-
2019
- 2019-06-06 CN CN201920858112.9U patent/CN210686567U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |