CN219529532U - Four-opening embedded part expansion nut - Google Patents
Four-opening embedded part expansion nut Download PDFInfo
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- CN219529532U CN219529532U CN202320390010.5U CN202320390010U CN219529532U CN 219529532 U CN219529532 U CN 219529532U CN 202320390010 U CN202320390010 U CN 202320390010U CN 219529532 U CN219529532 U CN 219529532U
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- head
- expansion nut
- central axis
- parallel
- head part
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Abstract
The utility model discloses a four-way embedded part expansion nut which comprises a head part and a tail part, wherein the head part is provided with a plurality of annular grooves, and the head part and the tail part are provided with through holes along a central axis; still including parallel and symmetry setting in the cross-section of the both sides of central axis, a pair of cross-section passes the through-hole and cuts apart the head symmetry, cuts apart the head into parallel four open structures through setting up through-hole and parallel cross-section for need the thimble no longer to prop up on the screw thread edge when the product die sinking, it is comparatively convenient to open the mould, has reduced the production of deckle edge, makes the installation comparatively convenient firm, also is difficult to fracture for traditional quarter formula structure, comparatively sturdy and durable.
Description
Technical Field
The utility model relates to the technical field of furniture connectors, in particular to a four-way embedded part expansion nut.
Background
The furniture connecting piece is mainly used for connecting parts of furniture, such as connection of a panel and a side edge of a drawer, connection of a cabinet rear plate and a side plate and the like, and when the parts are connected, an embedded part, namely an expansion nut, is placed into a pre-opened processing hole of one piece of furniture to be connected, and then the expansion nut is spread by a connecting rod, so that the expansion nut and the processing hole are fixed.
In the expansion nut in the prior art, as shown in fig. 1, the expansion nut adopting the traditional four-way structure comprises a tail part and a head part, wherein the head part is uniformly divided into four equal parts by the section passing through a central axis, but the strength is reduced due to more open edges, and the thread edges are easy to break; moreover, when the product is opened, the ejector pins are required to be propped against the thread edges, burrs are easy to generate, the ejector pins are not firmly fixed when the burrs can cause the embedded nailing of the expansion nut, and the hidden danger of loosening is caused, as shown in fig. 2, the expansion nut adopting the traditional three-open structure comprises a tail part and a head part, the head part is uniformly divided into three parts by the section of the central axis, and the product of the structure is inconvenient to open the die, the edge parting surface is also arranged on the thread edges, the ejector pins are propped against the thread edges to generate burrs, so that the installation is inconvenient.
Disclosure of Invention
The utility model aims at providing a four-opening embedded part expansion nut, which is firm and durable in the prior art, is difficult to generate burrs during die opening, and is convenient and firm to install.
The utility model adopts the following technical scheme to solve the technical problems: the four-opening embedded part expansion nut comprises a head part and a tail part, wherein the head part is provided with a plurality of annular grooves, and the head part and the tail part are provided with through holes along a central axis; the head part is provided with a central axis, a pair of cross sections which are arranged on two sides of the central axis in parallel and symmetrically penetrate through the through hole and divide the head part symmetrically.
By adopting the technical scheme, the head is divided into the parallel four-open structure through the through hole and the parallel section, so that the ejector pin is required to be not propped against the thread edge when the product is opened, the mold opening is convenient, the generation of burrs is reduced, the installation is convenient and firm, and the product is hard and durable compared with the traditional four-open structure, and is not easy to break.
As a further optimization of the utility model, the pair of cross sections trisect the head along the radial direction, so that the head can be uniformly stressed, and the structural strength is increased.
As a further optimization of the utility model, the top end of the head is provided with a chamfer.
As a further refinement of the utility model, the diameter of the tail is greater than the diameter of the head.
The beneficial effects of the utility model are as follows: the head is divided into the parallel four-open structure through the through holes and the parallel sections, so that the ejector pins are required to be not propped against the thread edges when the product is opened, the mold opening is convenient, the generation of burrs is reduced, the installation is convenient and firm, and the product is hard and durable compared with the traditional four-open structure, and is difficult to break.
Drawings
FIG. 1 is a schematic view of an expansion nut of a quarter-turn construction as mentioned in the background;
FIG. 2 is a schematic view of an expansion nut of the three-open structure mentioned in the background art;
FIG. 3 is a schematic perspective view of the present utility model;
fig. 4 is a schematic top view of the present utility model.
The meaning of the reference numerals in the figures: 1. a head; 10. a central axis; 11. a through hole; 12. a cross section; 2. and a tail part.
Detailed Description
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Referring to fig. 3-4, the present embodiment of the present disclosure further provides: the utility model provides a quarto built-in fitting expansion nut, includes head 1 and afterbody 2, and the diameter of afterbody 2 is greater than the diameter of head 1, and specifically, the diameter of head is 9 millimeters, and the diameter of afterbody is 10 millimeters.
The top end of the head 1 is provided with a chamfer, and the top end of the head 1 can better extend into a processing hole during installation;
the head part 1 is provided with a plurality of annular grooves, and the head part 1 and the tail part 2 are provided with through holes 11 along a central axis 10; the die is characterized by further comprising a pair of cross sections 12 which are parallel and symmetrically arranged on two sides of the central axis 10, wherein the cross sections 12 penetrate through the through holes 11 and divide the head 1 symmetrically, and specifically, the head 1 is divided into a parallel four-open structure by arranging the through holes 11 and the parallel cross sections 12, so that a thimble is not propped against a thread edge when a product is opened, the die is convenient to open, burrs are reduced, the installation is convenient and firm, and compared with a traditional four-open structure, the die is less prone to fracture and is firm and durable;
further, referring to fig. 4, the pair of cross sections 12 trisect the head 1 in the radial direction, so that the head 1 can be uniformly stressed, and structural strength is enhanced, specifically, the distance between the pair of cross sections 12 is 3 mm, and the radial distance between the pair of cross sections 12 and the end of the head 1 is 3 mm.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (4)
1. The four-opening embedded part expansion nut comprises a head part (1) and a tail part (2), wherein the head part (1) is provided with a plurality of annular grooves, and the four-opening embedded part expansion nut is characterized in that the head part (1) and the tail part (2) are provided with through holes (11) along a central axis (10); also comprises a pair of cross sections (12) which are arranged in parallel and symmetrically on two sides of the central axis (10), and the pair of cross sections (12) penetrate through the through hole (11) and divide the head (1) symmetrically.
2. A quarter-turn embedded expansion nut as claimed in claim 1, characterized in that the pair of cross sections (12) trisect the head (1) along the radial direction.
3. The four-way embedded part expansion nut according to claim 1, wherein a chamfer is arranged at the top end of the head part (1).
4. A quarter turn embedded expansion nut as claimed in claim 1 wherein the diameter of the tail portion (2) is greater than the diameter of the head portion (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320390010.5U CN219529532U (en) | 2023-03-06 | 2023-03-06 | Four-opening embedded part expansion nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320390010.5U CN219529532U (en) | 2023-03-06 | 2023-03-06 | Four-opening embedded part expansion nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219529532U true CN219529532U (en) | 2023-08-15 |
Family
ID=87630245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320390010.5U Active CN219529532U (en) | 2023-03-06 | 2023-03-06 | Four-opening embedded part expansion nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219529532U (en) |
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2023
- 2023-03-06 CN CN202320390010.5U patent/CN219529532U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |