Back buckle

Abstract

The present invention discloses a back plate buckle, comprising a connecting rod and a head arranged at one end of the connecting rod, the head being cam-shaped, and an installation groove for twisting the back plate buckle is arranged on the end surface of the head away from the end of the connecting rod, the outer periphery of the head comprises a first peripheral section, a second peripheral section and a third peripheral section connected in sequence, the distance from the second peripheral section to the rotation center of the head is greater than the distance from the first peripheral section to the rotation center of the head, the distance from the third peripheral section to the rotation center of the head is greater than or equal to the distance from the second peripheral section to the rotation center of the head, and at least one ratchet is arranged on the second peripheral section. Compared with the prior art, the present invention has the advantages that the back plate buckle of the present invention can clamp the back plate, so that the back plate and other plates are firmly connected.

Description

Technical Field

[0001] The invention relates to the technical field of furniture, in particular to a backboard buckle. Background Art

[0002] The cabinets of wardrobes, bookcases, decorative cabinets and filing cabinets in the modern furniture industry are made of multiple boards connected and assembled together. Among these boards, the horizontal boards are called layer boards, the vertical boards against the wall are called back boards, and the vertical boards other than the back boards are called side boards.

[0003] When installing the existing back panel, the upper side, lower side, left side and right side of the back panel are respectively embedded in the grooves of other panels. Since there are gaps between the above-mentioned side edges of the back panel and the grooves, the installed back panel and other panels are loose, the connection is not firm, and the cabinet structure is unstable.

[0004] Therefore, it is necessary to improve it. Summary of the invention

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a back panel buckle that can clamp the back panel to ensure a firm connection between the back panel and other panels.

[0006] In order to achieve the above purpose, the following technical solutions are provided:

[0007] A back plate buckle, characterized in that it includes a connecting rod and a head arranged at one end of the connecting rod, the head is cam-shaped, and an installation groove for twisting the back plate buckle is provided on the end surface of the head away from the one end of the connecting rod, the outer periphery of the head includes a first peripheral segment, a second peripheral segment and a third peripheral segment connected in sequence, the distance from the second peripheral segment to the rotation center of the head is greater than the distance from the first peripheral segment to the rotation center of the head, the distance from the third peripheral segment to the rotation center of the head is greater than or equal to the distance from the second peripheral segment to the rotation center of the head, and at least one ratchet is provided on the second peripheral segment.

[0008] Optionally, the distances from the first peripheral segment, the second peripheral segment, and the third peripheral segment to the head rotation center increase sequentially.

[0009] Optionally, the mounting groove is a cross groove, a Pozigzag groove, or a star groove.

[0010] Optionally, the third peripheral segment is in an arc shape.

[0011] Optionally, the outer periphery of the head further includes a limiting portion arranged between the first periphery segment and the third periphery segment.

[0012] After adopting the above structure, the advantages of the present invention compared with the prior art are: the back panel buckle of the present invention can clamp the back panel, so that the connection between the back panel and other panels is firm; a plurality of ratchets are provided on the second peripheral section of the back panel buckle, and when the back panel buckle is rotated, the ratchets on the back panel buckle cut the surface of the back panel and open a groove on the surface of the back panel, and this groove can prevent the back panel buckle from loosening and falling off; for a relatively hard back panel, the ratchets on the back panel buckle are more likely to open grooves on the harder back panel when rotating, and the opened grooves are not easy to have exposed edges, thereby ensuring the beautiful appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the back plate buckle of the present invention;

[0014] Figure 2 A top view showing the structure of the back plate buckle of the present invention;

[0015] Figure 3 It is a schematic diagram of the installation steps of the back plate buckle of the present invention;

[0016] Figure 4 It is a top view of the installation steps of the back plate buckle of the present invention. DETAILED DESCRIPTION

[0017] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0018] Reference Figures 1 to 4 The back plate buckle provided by the present invention includes a connecting rod 2 and a head 1 arranged at one end of the connecting rod 2. The head 1 is cam-shaped, that is, the distance from the outer periphery of the head 1 to its rotation center is variable. A mounting groove 10 for twisting the back plate buckle is provided on the end surface of the head 1 away from the end of the connecting rod 2. The mounting groove 10 can be a cross groove, a Pozigzag groove, a star groove or other suitable shapes. The outer periphery of the head 1 includes a first peripheral segment 11, a second peripheral segment 12 and a third peripheral segment 13 connected in sequence. The distance from the second peripheral segment 12 to the rotation center of the head 1 is greater than the distance from the first peripheral segment 11 to the rotation center of the head 1, and the distance from the third peripheral segment 13 to the rotation center of the head 1 is greater than or equal to the distance from the second peripheral segment 12 to the rotation center of the head 1, and a plurality of ratchet teeth 120 are provided on the second peripheral segment 12.

[0019] Preferably, the distances from the first peripheral segment 11 , the second peripheral segment 12 , and the third peripheral segment 13 to the rotation center of the head 1 increase sequentially.

[0020] When the back plate buckle is turned by aligning a screwdriver with the mounting groove 10, the head 1 rotates around the center point of the mounting groove 10, and at the same time, the entire back plate buckle rotates around the rotation center line of the connecting rod 2. The "rotation center of the head 1" referred to in the present invention refers to the rotation center line of the connecting rod 2.

[0021] See 3 and Figure 4 , Figure 3 and Figure 4 The installation process of the back plate buckle of the present invention is shown. A hole is punched in advance on the plate 02 to be connected to the back plate 01. During installation, the back plate 01 is aligned with the embedding groove 4 of the plate 02 and inserted; the first peripheral section 11 of the head 1 faces the back plate 01, and the back plate buckle is installed in the installation hole 3 of the plate 02; a cross screwdriver is aligned with the cross groove of the head 1 and twisted to rotate the head 1, and the ratchet 120 of the second peripheral section 12 starts to cut the back plate 01, and a groove is opened on the back plate 01. When the third peripheral section 13 of the head 1 faces the back plate 01, the third peripheral section 13 of the head 1 is embedded in the groove of the back plate 01, thereby clamping the back plate 01 to prevent the back plate from loosening.

[0022] The beneficial effects of the present invention are: the third peripheral section 13 of the back panel buckle is interference fit with the back panel, thereby clamping the back panel to prevent the back panel from loosening; a plurality of ratchets 120 are provided on the second peripheral section 12 of the back panel buckle, and when the back panel buckle is rotated, the ratchets 120 on the back panel buckle cut the surface of the back panel 01 and open a groove on the surface of the back panel 01, and this groove can prevent the back panel buckle from loosening and falling off; for a relatively hard back panel, the ratchets 120 on the back panel buckle are more likely to open grooves on the harder back panel when rotating, and the opened grooves are not easy to have exposed edges, thereby ensuring the beautiful appearance.

[0023] Preferably, the third peripheral segment 13 is in an arc shape.

[0024] The outer periphery of the head 1 further includes a limiting portion 14 disposed between the first periphery segment 11 and the third periphery segment 13, and the distance from the limiting portion 14 to the rotation center of the head 1 is greater than the distance from the third periphery segment 13 to the rotation center of the head 1. The limiting portion 14 can prevent the back plate buckle from being twisted into place or twisted too much when installing.

[0025] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A connection mechanism for a back plate buckle, characterized in that: It includes a back plate, a plate, and a back plate buckle for connecting the two; The back plate buckle includes a connecting rod and a head arranged at one end of the connecting rod, and the connecting rod is connected to the plate; the head is cam-shaped, and an installation groove for twisting the back plate buckle is provided on the end surface of the head away from the end of the connecting rod, and the outer periphery of the head includes a first peripheral segment, a second peripheral segment and a third peripheral segment connected in sequence, the distance from the second peripheral segment to the rotation center of the head is greater than the distance from the first peripheral segment to the rotation center of the head, the distance from the third peripheral segment to the rotation center of the head is greater than or equal to the distance from the second peripheral segment to the rotation center of the head, and at least one ratchet is provided on the second peripheral segment; when the head is rotated, the ratchet of the second peripheral segment starts to cut the back plate and a groove is opened on the back plate, and when the third peripheral segment of the head faces the back plate, the third peripheral segment of the head is embedded in the groove of the back plate.

2. The connection mechanism of the back plate buckle according to claim 1, characterized in that: The distances from the first peripheral segment, the second peripheral segment, and the third peripheral segment to the head rotation center increase sequentially.

3. The connection mechanism of the back plate buckle according to claim 1, characterized in that: The mounting groove is a cross groove, a Pozigzag groove or a star groove.

4. The connection mechanism of the back plate buckle according to claim 1, characterized in that: The third peripheral segment is in an arc shape.

5. The back plate buckle connection mechanism according to any one of claims 1 to 4, characterized in that: The outer periphery of the head also includes a limiting portion arranged between the first periphery segment and the third periphery segment.

Images