CN218030981U

CN218030981U - Invisible connecting piece

Info

Publication number: CN218030981U
Application number: CN202221239732.2U
Authority: CN
Inventors: 徐波
Original assignee: Sichuan Huaguang Intelligent Hardware Technology Co ltd
Current assignee: Sichuan Huaguang Intelligent Hardware Technology Co ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-12-13
Anticipated expiration: 2032-05-23

Abstract

The utility model discloses an invisible connecting piece, which relates to the technical field of plate connecting tools and comprises an expansion body and a fixed body, wherein the expansion body is sleeved on the fixed body, at least one end of the fixed body protrudes out of the expansion body, one end of the fixed body protruding out of the expansion body enters into a first connecting hole of a first connecting plate to be fixed, the other end of the fixed body and the expansion body protrude out of the first connecting plate to be aligned and enter into a second connecting hole of a second connecting plate to be fixed, and the first connecting hole and the second connecting hole are coaxial and concentric at the moment; the expansion body and the fixing body are integrally formed. The tip of the fixed body inserts in the first connecting hole and fixed with first connecting plate, is hidden by first connecting plate, and the other end of inflation body and fixed body inserts in the second connecting hole and fixed with the second connecting plate, is hidden by the second connecting plate, and the back is connected to first connecting plate and second connecting plate promptly, and this connecting piece does not have and exposes, and is stealthy completely.

Description

Invisible connecting piece

Technical Field

The utility model relates to a panel connecting tool technical field, concretely relates to stealthy connecting piece.

Background

In furniture products, the connection between panels is very common. The traditional and more common connection method is to fix two plates relatively by adding a surface-mounted connector between the two plates and respectively connecting the two plates by the surface-mounted connector. Under this kind of connected mode, obviously adorn the connecting piece and expose outside the board to, for the installation of obviously adorning the connecting piece, all can reserve the mounting hole at the surface of board, obviously adorn the connecting piece installation back, the mounting hole can not hidden, exposes promptly at the surface of board, very influences the aesthetic property of whole product. In addition, after the surface-mounted connecting piece is connected to the plate, secondary locking is required manually, and the mounting efficiency is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in view of the above problems, the present invention provides a concealed connecting member which is concealed between two plates, does not expose after installation, and does not require secondary locking.

The utility model adopts the technical scheme as follows:

a kind of stealthy link, these two link plates are first link plate and second link plate, both offer first connecting hole and second connecting hole separately, the stealthy link includes swelling body and fixed body, the swelling body is set up on the fixed body, at least one end of the fixed body protrudes the swelling body, one end of the swelling body of the fixed body enters the first connecting hole of the first link plate to fix, another end and swelling body of the fixed body protrude the first link plate, aim at and enter the second connecting hole of the second link plate to fix, first connecting hole and second connecting hole are concentric coaxially at this moment; the expansion body and the fixing body are integrally formed.

Preferably, the fixing body comprises a force application part, a sleeving part, a positioning part and an installation part which are arranged in sequence, the expansion body is sleeved on the sleeving part and is positioned between the force application part and the positioning part, one end of the fixing body is the installation part, and the other end of the fixing body is the force application part; the length of installation department is not more than the trompil degree of depth of first connecting hole, and the horizontal maximum dimension of location portion is greater than the trompil size of second connecting hole, and location portion also extrudes first connecting plate.

Preferably, the mounting portion is provided with an external thread, and the mounting portion is fixed in the first connecting hole in a screwing manner.

Preferably, the end face of the force application part, which faces away from the sleeving part, is provided with a screwing groove, and the mounting part is rotated through the screwing groove.

Preferably, the size of the opening of the second connecting hole is smaller than the maximum transverse size of the expansion body, and the opening depth of the second connecting hole is not smaller than the sum of the lengths of the force application part, the sleeving part and the positioning part.

Preferably, the expansion body comprises an upper limit part, a guide part, a resistance part and a lower limit part which are arranged in sequence, and the expansion body is inserted into the second connecting hole in sequence according to the sequence; an upper limiting hole is formed in the upper limiting part, and the size of an opening of the upper limiting hole is smaller than the maximum transverse size of the force application part; the outer surface of the guiding part inclines towards the direction of the upper limiting part; the outer surface of the resistance part is provided with anti-skid teeth; the maximum lateral dimension of the lower positioning portion is smaller than the maximum lateral dimension of the positioning portion.

Preferably, the first connecting plate and the second connecting plate are perpendicular to each other after passing through the invisible connecting piece.

Preferably, the expansion body and the fixing body are integrally formed.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that: the tip of the fixed body inserts in the first connecting hole and fixed with first connecting plate, is hidden by first connecting plate, and the other end of inflation body and fixed body inserts in the second connecting hole and fixed with the second connecting plate, is hidden by the second connecting plate, and after first connecting plate and second connecting plate were connected promptly, this connecting piece did not have and exposes, and is stealthy completely. The fixing body and the expansion body are connected with each other, so that the first connecting plate and the second connecting plate are connected with each other, the whole invisible connecting piece is hidden in the first connecting plate and the second connecting plate, the first connecting hole and the second connecting hole are aligned and hidden at the connecting part of the first connecting plate and the second connecting plate, and therefore after the two connecting plates are connected, the invisible connecting piece cannot be seen, the two connecting holes cannot be seen, and the attractiveness is improved relatively. In addition, after the invisible connecting piece is respectively inserted into the first connecting hole and the second connecting hole, the first connecting plate and the second connecting plate are fixed, manual secondary locking is not needed, the connecting mode is simple and convenient, and the installation efficiency is relatively improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention cooperating with the first connecting plate and the second connecting plate.

Fig. 2 is a front perspective view of fig. 1.

Fig. 3 is a schematic structural diagram of the present invention.

Fig. 4 is a schematic view of another angle structure of fig. 3.

Fig. 5 is a schematic structural view of the expansion body.

Fig. 6 is a schematic view of another angle structure of fig. 5.

Fig. 7 is a schematic structural view of the fixing body.

Fig. 8 is a schematic view of another angle structure of fig. 7.

The labels in the figure are: the expansion body-1, the upper limit part-11, the upper limit hole-111, the guide part-12, the resistance part-13, the lower limit part-14, the fixed body-2, the force application part-21, the screwing groove-211, the sleeving part-22, the positioning part-23, the installation part-24, the first connecting plate-8, the first connecting hole-81, the second connecting plate-9 and the second connecting hole-91.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Referring to fig. 1 to 8, an invisible connecting piece connects two connecting plates, namely a first connecting plate 8 and a second connecting plate 9, which are respectively provided with a first connecting hole 81 and a second connecting hole 91. The invisible connecting piece comprises an expansion body 1 and a fixing body 2.

The fixing body 2 comprises a force application part 21, a sleeving part 22, a positioning part 23 and an installation part 24 which are sequentially arranged from top to bottom, the four parts are integrally formed, and the sleeving part 22 and the positioning part 23 are cylinders. The expansion body 1 is hollow, sleeved on the sleeve joint part 22 and positioned between the force application part 21 and the positioning part 23. The end surface of the force application portion 21 facing away from the engaging portion 22 is provided with a screwing groove 211, the screwing groove 211 is in a shape capable of applying force and screwing, such as a cross shape, a straight shape, a hexagon socket shape, or a hexagon socket shape, and a tool is inserted into the screwing groove 211 to rotate, so that the whole fixing body 2 is driven to rotate. The outer part of the mounting part 24 is provided with an external thread, and the mounting part is screwed into the first connecting hole 81 for fixation in a mode of rotating the force application part 21 by a tool, the mounting mode of the mounting part 24 is simple and convenient due to the connection mode of the external thread, and the friction force between the mounting part 24 and the inner wall of the first connecting hole 81 is also ensured to be large enough, so that the stability of the mounting part 24 and the first connecting plate 8 is improved; the transverse maximum size of the mounting part 24 is equal to the aperture of the first connecting hole 81 or exceeds the aperture of the first connecting hole 81 by 0.1-0.3 mm, the two parts are in interference fit, the outer surface of the mounting part 24 can be ensured to be fully contacted with the inner wall of the first connecting hole 81, the friction force between the two parts is further increased, and the two parts are prevented from being separated; the length of installation department 24 is not more than the hole depth of first connecting hole 81, guarantees that installation department 24 can all be located first connecting hole 81, and then guarantees that both junctions of first connecting plate 8 and second connecting plate 9 are seamless. The diameter of the positioning portion 23 is larger than the maximum lateral dimension of the mounting portion 24, i.e., larger than the aperture of the second connection hole 91, so that the positioning portion 23 is located outside the first connection plate 8, and the mounting portion 24 is completely located inside the first connection hole 81 when the positioning portion 23 contacts the outer surface of the first connection plate 8.

The inflation body 1 includes an upper stopper 11, a guide 12, a resistance 13, and a lower stopper 14, which are arranged in this order from top to bottom, and are inserted into the second connection hole 91 in this order. An upper limiting hole 111 is formed in the upper limiting part 11, the diameter of the upper limiting hole 111 is smaller than the maximum transverse dimension of the force application part 21, and the inner wall of the upper limiting part 11 is in contact with the outer wall of the force application part 21, so that the connection fixity of the upper limiting part and the force application part is improved. The outer surface of the guide portion 12 is inclined toward the upper limit portion 11 to facilitate insertion into the second connection hole 91; the outer surface of the resistance part 13 is provided with anti-skidding teeth, the aperture of the second connecting hole 91 is equal to the transverse maximum size of the anti-skidding teeth or exceeds the transverse maximum size of the anti-skidding teeth by 0.1-0.3 mm, the anti-skidding teeth and the anti-skidding teeth are in interference fit, the outer surface of the anti-skidding teeth can be fully contacted with the inner wall of the second connecting hole 91, friction force between the anti-skidding teeth and the inner wall of the second connecting hole 91 is increased, and the anti-skidding teeth are prevented from being separated from each other. The lower retainer 14 is a cylindrical body having a diameter smaller than that of the retainer 23, so that the lower retainer 14 is located above the retainer 23 and in contact therewith, defining the position of the expansion body 1 relative to the fixed body 2. The depth of the second connecting hole 91 is not less than the sum of the lengths of the force application part 21, the sleeving part 22 and the positioning part 23, so that the force application part 21, the sleeving part 22 and the positioning part 23 can be completely positioned in the second connecting hole 91, and further, the seamless connection between the first connecting plate 8 and the second connecting plate 9 is ensured.

The expansion body 1 is made of elastic plastic material. The expansion body 1 and the fixing body 2 are integrally formed and cannot be separated, the fixity of the expansion body and the fixing body is guaranteed, and then the stability of connection of the first connecting plate 8 and the second connecting plate 9 is guaranteed.

In another preferred embodiment, the invisible connector further comprises an embedded part, the embedded part is hollow, the inner wall of the embedded part is provided with an internal thread adapted to the external thread of the mounting part 24, the embedded part is rough on the outside and is inserted into the first connecting hole 81 for fixing, and the mounting part 24 is connected with the first connecting plate 8 by screwing in the embedded part.

The mounting mode of the invisible connecting piece is as follows:

aligning the mounting part 24 of the fixing member with the first connection hole 81, inserting a tool into the screwing groove 211 of the force application part 21, rotating the force application part 21 to drive the fixing member to screw into the first connection hole 81, ensuring that the mounting part 24 is completely positioned in the first connection hole 81, and the force application part 21, the sleeving part 22 and the positioning part 23 of the expansion member and the fixing member are all positioned outside the first connection hole 81;

the second connecting hole 91 is aligned with the force application part 21, the second connecting plate 9 is pressed downwards, and the force application part 21 of the fixing member, the expansion member and the positioning part 23 of the fixing member are inserted into the second connecting hole 91 in sequence until the second connecting plate 9 contacts with the first connecting plate 8.

The first connecting plate 8 and the second connecting plate 9 are completely installed and perpendicular to each other, and the first connecting hole 81 and the second connecting hole 91 are coaxially concentric.

The principles and embodiments of the present invention have been explained herein using specific examples, which are presented only to aid in understanding the methods and their core concepts. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. An invisible connecting piece is characterized in that the two connecting plates are a first connecting plate and a second connecting plate which are respectively provided with a first connecting hole and a second connecting hole, the invisible connecting piece comprises an expansion body and a fixed body, the expansion body is sleeved on the fixed body, at least one end of the fixed body protrudes out of the expansion body, one end of the fixed body protruding out of the expansion body enters the first connecting hole of the first connecting plate to be fixed, the other end of the fixed body and the expansion body protrude out of the first connecting plate and align to and enter the second connecting hole of the second connecting plate to be fixed, and at the moment, the first connecting hole and the second connecting hole are coaxial and concentric; the expansion body and the fixing body are integrally formed.

2. The invisible connector of claim 1, wherein the fixing body comprises a force application part, a sleeve part, a positioning part and a mounting part which are arranged in sequence, the expansion body is sleeved on the sleeve part and is positioned between the force application part and the positioning part, one end of the fixing body is the mounting part, and the other end of the fixing body is the force application part; the length of installation department is not more than the trompil degree of depth of first connecting hole, and the horizontal maximum dimension of location portion is greater than the trompil size of second connecting hole, and location portion also extrudes first connecting plate.

3. The invisible connector of claim 2, wherein the mounting portion is provided with external threads, and the mounting portion is secured in the first coupling hole by being screwed into the first coupling hole.

4. The invisible connector according to claim 3, wherein the end surface of the force application part facing away from the socket part is provided with a screwing groove, and the mounting part is rotated through the screwing groove.

5. The invisible connecting piece according to claim 2, wherein the opening size of the second connecting hole is smaller than the transverse maximum size of the expansion body, and the opening depth of the second connecting hole is not smaller than the sum of the lengths of the force application part, the sleeving part and the positioning part.

6. The invisible connector of claim 5, wherein the expansion body comprises an upper limit portion, a guide portion, a resistance portion and a lower limit portion which are arranged in sequence, and are inserted into the second connecting hole in sequence; an upper limiting hole is formed in the upper limiting part, and the size of an opening of the upper limiting hole is smaller than the maximum transverse size of the force application part; the outer surface of the guide part inclines towards the direction of the upper limit part; the outer surface of the resistance part is provided with anti-skid teeth; the maximum lateral dimension of the lower positioning portion is smaller than the maximum lateral dimension of the positioning portion.

7. The invisible connector of claim 1, wherein the first web and the second web are perpendicular to each other after passing through the invisible connector.