阅读说明：本技术 一种二合一的隐形扣件及其工作方法 (Two-in-one invisible fastener and working method thereof ) 是由 温琴学 于 2021-04-09 设计创作，主要内容包括：一种二合一的隐形扣件及其工作方法,涉及隐形连接件技术领域,包括外套、压簧、内套、卡销、橡胶圈、销轴和工业砂,外套包括第一轴套和第二轴套,内套包括第三轴套和第四轴套,卡销包括第三凹槽和第四凹槽,销轴包括轴头、第一阶梯轴、第二阶梯轴、轴肩、第三阶梯轴和第四阶梯轴,本发明提供了一种二合一的隐形扣件及其工作方法,与传统的二合一扣件相比,该发明的二合一的隐形可以使家具安装后更加美观,可做到无缝无孔外露,安装时只需一拍即合,安装效率快,可外部借助磁铁无阻力拆卸,扣件循环适用,不仅拆卸敏捷、适用广泛而且节省成本。(The invention provides a two-in-one invisible fastener and a working method thereof, and relates to the technical field of invisible connecting pieces, which comprises an outer sleeve, a pressure spring, an inner sleeve, a bayonet lock, a rubber ring, a pin shaft and industrial sand, wherein the outer sleeve comprises a first shaft sleeve and a second shaft sleeve, the inner sleeve comprises a third shaft sleeve and a fourth shaft sleeve, the bayonet lock comprises a third groove and a fourth groove, and the pin shaft comprises a shaft head, a first stepped shaft, a second stepped shaft, a shaft shoulder, a third stepped shaft and a fourth stepped shaft.)

1. A two-in-one invisible fastener is characterized by comprising:

the outer sleeve (1) is of a stepped structure, the outer sleeve (1) comprises a first shaft sleeve (101) and a second shaft sleeve (102), a first through hole (1011) is formed in the bottom of the first shaft sleeve (101), a first external thread (1021) is formed in the surface of the second shaft sleeve (102), an inner cavity (1022) is formed in the second shaft sleeve (102) and extends to the first shaft sleeve (101), and a first internal thread (1023) is formed in the open end of the inner cavity (1022);

the inner sleeve (3) is of a stepped structure, the inner sleeve (3) comprises a third shaft sleeve (301) and a fourth shaft sleeve (302), a first through hole (3011) is formed in the third shaft sleeve (301) along a central shaft and extends to the fourth shaft sleeve (302), a first groove (3012) is formed in the surface of the third shaft sleeve (301), a second groove (3013) is formed in the surface of the third shaft sleeve (301) and communicated with the second through hole (3011), a first chamfer (3014) is formed at one end of the third shaft sleeve (301), and a third through hole (3021) is formed in the surface of the fourth shaft sleeve (302) and communicated with the second through hole (3011);

the bayonet lock (4) is of a semi-cylindrical pin structure, the bayonet lock (4) comprises a third groove (401) and a fourth groove (402), the third groove (401) is formed in the surface of the bayonet lock (4), and the fourth groove (402) is formed in the other side of the surface of the bayonet lock (4);

the hinge pin (6) is of a stepped structure, the hinge pin (6) comprises a shaft head (601), a first stepped shaft (602), a second stepped shaft (603), a shaft shoulder (604), a third stepped shaft (605) and a fourth stepped shaft (606), the shaft head (601) is arranged at one end of the first stepped shaft (602), the second stepped shaft (603) is arranged at the other end of the first stepped shaft (602), the shaft shoulder (604) is arranged at the other end of the second stepped shaft (603), the third stepped shaft (605) is arranged at the other end of the shaft shoulder (604), the fourth stepped shaft (605) is arranged at the other end of the third stepped shaft (605), and a second external thread (6061) is arranged on the surface of the fourth stepped shaft (606);

adjust lid (7), it is stepped structure to adjust lid (7), adjust lid (7) including first end cover (701) and second end cover (702), the one end of first end cover (701) is provided with sixth recess (7011) along the center pin, the other end of first end cover (701) is provided with second end cover (702), the one end of second end cover (702) along the center pin be provided with third through-hole (7021) and with sixth recess (7011) are linked together, the surface of second end cover (702) is provided with third external screw thread (7022), the one end of third external screw thread (7022) is provided with second chamfer (7023).

2. The two-in-one invisible fastener according to claim 1, wherein the cross-sectional shape of the first groove (3012) is a semicircular groove, and the first groove (3012) and the third groove (401) are adapted to the rubber ring (5).

3. A two-in-one concealed fastener according to claim 1, wherein both end faces of said second recess (3013) are adapted to said bayonet (4).

4. A two-in-one concealed fastener according to claim 1, wherein said compression spring (2) has an outer diameter of 8.9 mm, a wire diameter of 1.5 mm and a height of 15 mm.

5. The two-in-one concealed fastener according to claim 1, wherein the cross-section of said third step axis (605) is hexagonal outside shape and the cross-section of said sixth groove (7011) is hexagonal inside shape.

6. The two-in-one invisible fastener according to claim 1, wherein the first chamfer (3014) and the second chamfer (7023) are adapted to form a V-shaped groove, and industrial sand (8) is arranged in the V-shaped groove.

7. A two-in-one invisible fastener according to claim 1, wherein the outer sleeve (1), the pressure spring (2), the inner sleeve (3), the locking pin (4), the pin shaft (6) and the adjusting cover (7) are made of aluminum alloy.

8. A method for operating a two-in-one invisible fastener, which is applied to the two-in-one invisible fastener as claimed in claim 1, and comprises the following steps:

s1, inserting the outer sleeve (1) and the pin shaft (6) respectively, enabling the outer sleeve (1) to be matched with the inner hole of the wood board through the first external thread (1021), and enabling the fourth stepped shaft (606) of the pin shaft (6) to be matched with the inner hole of the other wood board through the second external thread (6061);

s2, inserting other components, placing the pressure spring (2) at the bottom of the inner cavity (1022), inserting the inner sleeve (3) and the bayonet lock (4) into the inner cavity (1022) after being matched through the rubber ring (5), enabling one end of the inner sleeve (3) to be in contact with one end of the pressure spring (2), placing industrial sand (8) at a first chamfer angle (3014), then enabling the adjusting cover (7) to be matched with the first internal thread (1023), enabling one end of the adjusting cover (7) to be in contact with one end of the third shaft sleeve (301), and inserting the fourth shaft sleeve (302) into the third through hole (7021);

s3, a fastener is combined, according to the distance between two plates, the distance between the end face of the first end cover (701) and the plates is controlled by adjusting a third external thread (7022) through a sixth groove (7011), after the distance is adjusted, the pin shaft (6) penetrates through a third through hole (7021) and is inserted into a second through hole (3011), the pin head (601) jacks the pin head (4), the shaft shoulder (604) is in contact with one end of a fourth shaft sleeve, the pin head (4) is pulled back into the second through hole (3011) through the contraction force of the rubber ring (5), the fourth groove (402) is matched with the surface of the first step shaft (602), and the combination of the outer sleeve (1) and the pin shaft (6) is completed.

Technical Field

The invention relates to the technical field of invisible connecting pieces, in particular to a two-in-one invisible fastener and a working method thereof.

Background

Along with the improvement of living standard of people, the requirement on the attractive appearance and practicability of furniture is higher and higher, the two-in-one fastener in the market is widely used at present, but has a plurality of problems, such as complex mounting process, troublesome dismounting, unsightly appearance and the like.

Disclosure of Invention

The embodiment of the invention provides a two-in-one invisible fastener and a working method thereof.

In view of the above problems, the present invention provides a two-in-one invisible fastener, comprising:

the outer sleeve is of a stepped structure and comprises a first shaft sleeve and a second shaft sleeve, a first through hole is formed in the bottom of the first shaft sleeve, a first external thread is formed on the surface of the second shaft sleeve, an inner cavity is formed in the second shaft sleeve and extends to the first shaft sleeve, and a first internal thread is formed at the opening end of the inner cavity;

the inner sleeve is of a stepped structure and comprises a third shaft sleeve and a fourth shaft sleeve, the third shaft sleeve is provided with a first through hole along a central shaft and extends to the fourth shaft sleeve, a first groove is formed in the surface of the third shaft sleeve, a second groove is formed in the surface of the third shaft sleeve and is communicated with the second through hole, a first chamfer is formed in one end of the third shaft sleeve, and a third through hole is formed in the surface of the fourth shaft sleeve and is communicated with the second through hole;

the bayonet lock is of a semi-cylindrical pin structure and comprises a third groove and a fourth groove, the third groove is formed in the surface of the bayonet lock, and the fourth groove is formed in the other side of the surface of the bayonet lock;

the hinge pin is of a stepped structure and comprises a shaft head, a first stepped shaft, a second stepped shaft, a shaft shoulder, a third stepped shaft and a fourth stepped shaft, wherein the shaft head is arranged at one end of the first stepped shaft, the second stepped shaft is arranged at the other end of the first stepped shaft, the shaft shoulder is arranged at the other end of the second stepped shaft, the third stepped shaft is arranged at the other end of the shaft shoulder, the fourth stepped shaft is arranged at the other end of the third stepped shaft, and a second external thread is arranged on the surface of the fourth stepped shaft;

the adjusting cover is of a stepped structure and comprises a first end cover and a second end cover, a sixth groove is formed in one end of the first end cover along the central axis, the other end of the first end cover is provided with the second end cover, a third through hole is formed in one end of the second end cover along the central axis, the third through hole is communicated with the sixth groove, a third external thread is arranged on the surface of the second end cover, and a second chamfer is arranged at one end of the third external thread.

Furthermore, the cross section of the first groove is in the shape of a semicircular groove, and the first groove and the third groove are matched with the rubber ring.

Furthermore, two end faces of the second groove are matched with the clamping pins.

Furthermore, the outer diameter of the pressure spring is a millimeter, the wire diameter is a millimeter, and the height is a millimeter.

Further, the cross section of the third stepped shaft is in an outer hexagonal shape, and the cross section of the sixth groove is in an inner hexagonal shape.

Furthermore, the first chamfer and the second chamfer are matched to form a V-shaped groove, and industrial sand is arranged in the V-shaped groove.

Furthermore, the outer sleeve, the pressure spring, the inner sleeve, the clamping pin, the pin shaft and the adjusting cover are made of aluminum alloy.

In a second aspect, an embodiment of the present invention provides a working method of a two-in-one invisible fastener, including the following steps:

s1, inserting the outer sleeve and the pin shaft respectively, matching the outer sleeve with the inner hole of the wood board through the first external thread, and matching the fourth stepped shaft of the pin shaft with the inner hole of the other wood board through the second external thread;

s2, inserting other components, placing a pressure spring at the bottom of the inner cavity, inserting the inner sleeve and a bayonet lock into the inner cavity after being matched through a rubber ring, enabling one end of the inner sleeve to be in contact with one end of the pressure spring, placing industrial sand at a first chamfer angle, then enabling an adjusting cover to be matched with a first internal thread, enabling one end of the adjusting cover to be in contact with one end of a third shaft sleeve, and inserting a fourth shaft sleeve into a third through hole;

s3, a fastener is combined, according to the distance between the two plates, the distance between the end face of the first end cover and the plates is controlled through the sixth groove to adjust the third external threads, after the distance is adjusted, the pin shaft penetrates through the third through hole to be inserted into the second through hole, the shaft head pushes the pin lock open, the shaft shoulder is in contact with one end of the fourth shaft sleeve, the pin lock is pulled back into the second through hole through the contraction force of the rubber ring, the fourth groove is matched with the surface of the first step shaft, and the combination of the outer sleeve and the pin shaft is completed.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

1. the adjusting function of matching the pressure spring with the industrial sand is realized by arranging the pressure spring and placing the industrial sand of which the first chamfer is matched with the second chamfer to form a V-shaped groove;

2. through the arrangement of the third through hole, the position of the second groove in the inner hole of the wood board is adjusted by means of a tool for 360 degrees, so that the bayonet lock can be adjusted to a proper position on the end face of the wood board for 360 degrees, and the function of detaching without dead angles is realized;

3. the bayonet lock is attracted by the aid of the external magnet, and the bayonet lock is separated from the surface of the first step shaft, so that the flawless disassembly function of the bayonet lock and the magnet is realized;

4. the coarse adjustment and fine adjustment functions of the gaps of the wood boards are realized by arranging the outer hexagon of the third stepped shaft and the inner hexagon of the sixth groove.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a perspective view of a two-in-one invisible fastener disclosed in an embodiment of the present invention;

FIG. 2 is a front view of a two-in-one invisible fastener disclosed in an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a disclosed outer cover in accordance with an embodiment of the present invention;

FIG. 4 is a cross-sectional view and a cross-sectional view of an inner sleeve disclosed in an embodiment of the present invention;

FIG. 5 is a front view and a cross-sectional view of a bayonet disclosed in an embodiment of the present invention;

FIG. 6 is a front view and a cross-sectional view of a rubber ring according to an embodiment of the present invention;

FIG. 7 is a front view and a cross-sectional view of a pin shaft disclosed in an embodiment of the present invention;

FIG. 8 is a cross-sectional view and a left side view of an adjustment cover according to the present disclosure;

fig. 9 is a front view of a compression spring according to an embodiment of the present invention.

FIG. 10 is a flowchart of a method for forming a two-in-one invisible fastener according to an embodiment of the present invention.

Reference numerals:

1-coating; 101-a first sleeve; 1011-first through hole; 102-a second bushing; 1021-a first external thread; 1022-lumen; 1023-a first internal thread; 2, pressing a spring; 3-inner sleeve; 301-a third shaft sleeve; 3011-a second via; 3012-a first groove; 3013-a second groove; 3014-first chamfer; 302-a fourth sleeve; 3021-third via; 4-a bayonet lock; 401-a third groove; 402-a fourth groove; 5-rubber ring; 6-a pin shaft; 601-a shaft head; 6011-fifth groove; 602-a first step axis; 603-a second step axis; 604-shaft shoulder; 605-third step axis; 606-a fourth stepped shaft; 6061-second external thread; 7-adjusting the cover; 701-a first end cap; 7011-sixth groove; 702-a second end cap; 7021-a third via; 7022-a third external thread; 7023-second chamfer.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

Example one

As shown in fig. 1-9, an embodiment of the present invention provides a two-in-one invisible fastener, which includes:

the outer sleeve 1, the pressure spring 2, the inner sleeve 3, the bayonet 4, the pin shaft 6 and the adjusting cover 7 are made of aluminum alloy, the outer sleeve 1 is of a stepped structure, the outer sleeve 1 comprises a first shaft sleeve 101 and a second shaft sleeve 102, a first through hole 1011 is formed in the bottom of the first shaft sleeve 101, a first external thread 1021 is formed in the surface of the second shaft sleeve 102, an inner cavity 1022 is formed inside the second shaft sleeve 102 and extends to the first shaft sleeve 101, a first internal thread 1023 is formed in the open end of the inner cavity 1022, the inner sleeve 3 is of a stepped structure, the inner sleeve 3 comprises a third shaft sleeve 301 and a fourth shaft sleeve 302, the third shaft sleeve 301 is provided with a first through hole 3011 along the central axis and extends to the fourth shaft sleeve 302, a first groove 3012 is formed in the surface of the third shaft sleeve 301, a second groove 3013 is formed in the surface of the third shaft sleeve 301 and is communicated with the second through hole 3011, a first chamfer 3014 is formed in one end of the third shaft sleeve 301, a third through hole 3021 is communicated with the second through hole 3011 is formed in the surface of the fourth shaft sleeve 302, the bayonet 4 is of a semi-cylindrical pin structure, the bayonet 4 comprises a third groove 401 and a fourth groove 402, the surface of the bayonet 4 is provided with the third groove 401, the cross section of the first groove 3012 is in a semicircular groove shape, the first groove 3012 and the third groove 401 are matched with the rubber ring 5, two end faces of the second groove 3013 are matched with the bayonet 4, the other side of the surface of the bayonet 4 is provided with the fourth groove 402, the pin shaft 6 is in a stepped structure, the pin shaft 6 comprises a shaft head 601, a first stepped shaft 602, a second stepped shaft 603, a shaft shoulder 604, a third stepped shaft 605 and a fourth stepped shaft 606, one end of the first stepped shaft 602 is provided with the shaft head 601, the other end of the first stepped shaft 602 is provided with the second stepped shaft 603, the other end of the second stepped shaft 603 is provided with the shaft shoulder 604, the other end of the shaft shoulder is provided with the third stepped shaft 605, the other end of the third stepped shaft 605 is provided with the fourth stepped shaft 605, the section of the third stepped shaft 605 is in an external hexagonal shape, the surface of the fourth stepped shaft 606 is provided with a second external thread 6061, the adjusting cover 7 is in a stepped structure, the adjusting cover 7 comprises a first end cover 701 and a second end cover 702, one end of the first end cover 701 is provided with a sixth groove 7012 along the central axis, the section of the sixth groove 7012 is in an internal hexagonal shape, the other end of the first end cover 701 is provided with a second end cover 702, one end of the second end cover 702 is provided with a third through hole 7021 along the central axis and communicated with the sixth groove 7012, the surface of the second end cover 702 is provided with a third external thread 7022, one end of the third external thread 7022 is provided with a second chamfer 7023, the first chamfer 3014 and the second chamfer 7023 are matched to form a V-shaped groove, the V-shaped groove is internally provided with industrial sand 8, the external diameter of the pressure spring 2 is 8.9 mm, the linear diameter is 1.5 mm, and the height is 15 mm;

in this embodiment, one end of the third shaft sleeve 301 is provided with a first chamfer 3014, one end of the third external thread 7022 is provided with a second chamfer 7023, the first chamfer 3014 and the second chamfer 7023 are matched to form a V-shaped groove, industrial sand 8 is arranged in the V-shaped groove, if a gap is installed at one position of an installation surface after the plate and the plate are combined, when the installation gap is not greater than 0.8mm, the pin shaft 6 is inserted into the second through hole 3011, the shaft shoulder 604 pushes the end surface of the fourth shaft sleeve 302 backwards, the end surface of the third shaft sleeve 301 compresses the pressure spring 2, a gap is formed at the positions of the first chamfer 3014 and the second chamfer 7023, the industrial sand 8 flows out along the chamfer to fill the gap within 0.8mm, and the function of adjusting the pressure spring for matching with the industrial sand is realized.

In this embodiment, the third shaft sleeve 301 is provided with a first through hole 3011 along the central axis and extends to the fourth shaft sleeve 302, the surface of the third shaft sleeve 301 is provided with a second groove 3013 and is communicated with the second through hole 3011, the surface of the fourth shaft sleeve 302 is provided with a third through hole 3021 and is communicated with the second through hole 3011, two end faces of the second groove 3013 are adapted to the bayonet 4, after the outer sleeve 1 is inserted into the inner hole of the wood board, the position of the second groove 3013 in the inner hole of the wood board can be adjusted by 360 ° facing the third through hole 3021 with the aid of a special tool, so that the bayonet 4 is adjusted to a proper position on the end face of the wood board, the closest position of the magnet is conveniently aligned to the bayonet 4, and the blind-corner-free dismounting function is realized.

In this embodiment, a first groove 3012 is formed in the surface of the third shaft sleeve 301, a third groove 401 is formed in the surface of the bayonet 4, a fourth groove 402 is formed in the other side of the surface of the bayonet 4, when the pin 6 is inserted into the second through hole 3011, the bayonet 4 is pulled back into the second through hole 3011 by the contraction force of the rubber ring 5, so that the fourth groove 402 is matched with the surface of the first step shaft 602, when the fastener is detached, the bayonet 4 is pulled back out of the second through hole 3011 at a proper position by means of an external magnet, so that the fourth groove 402 is separated from the surface of the first step shaft 602, the pin 6 is pulled away, and the flawless detachment function of the bayonet with the magnet is achieved.

In this embodiment, a sixth groove 7012 is formed in one end of the first end cover 701 along the central axis, the cross section of the sixth groove 7012 is in a hexagon socket shape, and before the plates are assembled, an operator measures the distance between the plates, adjusts the first end cover 701 by using a special tool, primarily adjusts the distance between the mounting surfaces, leaves an operation margin for subsequent adjustment of the compressed spring and the industrial sand, and achieves a coarse adjustment function of the wood plate gap.

In this embodiment, the other end of the third stepped shaft 605 is provided with a fourth stepped shaft 605, the cross section of the third stepped shaft 605 is in an outer hexagonal shape, after the board and the board are assembled, because of human error or board deformation, gaps still remain after the installation gaps of some fasteners are adjusted by matching industrial sand with a pressure spring, a special tool can be inserted into the outer hexagonal shape of the third stepped shaft 605 to adjust the depth of the fourth stepped shaft 606 screwed into the wood board hole, and the fine adjustment function of the wood board gaps is realized.

Example two

The embodiment of the invention also discloses a working method of the two-in-one invisible fastener, which comprises the following steps as shown in figure 2:

s1, inserting the outer sleeve 1 and the pin shaft 6 respectively, matching the outer sleeve 1 with the inner hole of a wood board through the first external thread 1021, and matching the fourth stepped shaft 606 of the pin shaft 6 with the inner hole of another wood board through the second external thread 6061;

s2, inserting other components, placing the pressure spring 2 at the bottom of the inner cavity 1022, inserting the inner sleeve 3 and the bayonet 4 into the inner cavity 1022 after being matched through the rubber ring 5, enabling one end of the inner sleeve 3 to be in contact with one end of the pressure spring 2, placing the industrial sand 8 at the first chamfer 3014, then enabling the adjusting cover 7 to be matched with the first internal thread 1023, enabling one end of the adjusting cover 7 to be in contact with one end of the third shaft sleeve 301, and inserting the fourth shaft sleeve 302 into the third through hole 7021;

s3, combine the fastener, the operator measures the distance between the two plates, adjust the third external thread 7022 through the sixth groove 7012 to control the installation distance between the end face of the first end cap 701 and the plate, insert the pin shaft 6 into the second through hole 3011 through the third through hole 7021 after the distance adjustment is completed, the pin head 601 pushes the pin 4 open, the shoulder 604 contacts with one end of the fourth shaft sleeve, the pin 4 is pulled back into the second through hole 3011 by the contraction force of the rubber ring 5, so that the fourth groove 402 is matched with the surface of the first step shaft 602, and the combination of the jacket 1 and the pin shaft 6 is completed.

It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.

In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.

What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".