CN221144934U - Center column type invisible connecting piece - Google Patents
Center column type invisible connecting piece Download PDFInfo
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- CN221144934U CN221144934U CN202323016973.8U CN202323016973U CN221144934U CN 221144934 U CN221144934 U CN 221144934U CN 202323016973 U CN202323016973 U CN 202323016973U CN 221144934 U CN221144934 U CN 221144934U
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- 239000002131 composite material Substances 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 21
- 239000004033 plastic Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 abstract description 17
- 238000009434 installation Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The utility model discloses a center column type invisible connecting piece, which relates to the technical field of laminate connecting pieces in furniture industry and comprises an expansion shell and a center column, wherein one end in the expansion shell is provided with a composite plug hole, the other end of the expansion shell is provided with an expansion hole, the maximum aperture of the composite plug hole is larger than that of the expansion hole, the initial state of the center column is arranged in the composite plug hole of the expansion shell, and the center column enters the expansion hole under the action of external force, so that the expansion hole expands outwards. The utility model has reasonable design, and can tightly connect two plates (a bottom plate and a partition plate, two furniture plates to be connected by the middle column type invisible connecting piece, and the rear surfaces of the two plates are not provided with any mounting holes) together by simply using a simple tool for knocking by a rubber hammer.
Description
Technical Field
The utility model relates to the technical field of laminate connectors in the furniture industry, in particular to the technical field of center column type invisible connectors.
Background
The furniture industry can adopt invisible connectors with various structures for attractive appearance after furniture installation. The prior patent discloses the following technology:
Patent publication CN115773298a, entitled "locking sleeve in a invisible connector", discloses the following: a locking sleeve in a concealed connector which is easily positioned at the proper insertion depth when inserted into an insertion channel of a furniture plate. The invention also provides a hidden connecting piece and a furniture board which adopt the locking sleeve. The locking sleeve of the invisible connecting piece is provided with a locking structure for locking the locked piece, the locking sleeve is used for realizing the installation of the furniture board and other furniture boards by locking the locked piece in a state of being inserted into the furniture board placement channel forwards, and the rear end of the locking sleeve is provided with a limiting clamping piece for being clamped behind the inlet edge of the furniture board placement channel. The locking sleeve is easily positioned at the proper depth of insertion to lock the locking bar without being inserted too deep or too shallow.
Patent publication number CN108661992a, entitled "invisible furniture connector" discloses the following: the utility model provides a stealthy connecting piece of furniture, includes mutually supporting built-in fitting combination (A, B two parts), and two built-in fitting are cylindrical, and the terminal surface equipartition counter bore of mutually supporting to be provided with circular recess and the arch of mutually supporting, terminal surface center is provided with coaxial screw hole, is equipped with the cavity in one of them built-in fitting, has placed the screw pin and the magnet of matched with of taking radial interference fit location in the cavity. After the technical scheme is adopted, the external magnet is driven to rotate through the directional magnetic field generated by the rotation of the external magnet, so that the internal magnet of the embedded part is driven to rotate to push the pin to rotate to be connected with the screw hole matched with the other embedded part, quick installation is realized, the connection is firm and completely invisible, no trace is seen from the outside, the beautiful degree of assembly is improved, in addition, in the aspect of repeated assembly and disassembly of furniture, the invention has very obvious advantages, only the rotation direction of the external magnet is required to be changed, the internal pin of the embedded part can be separated from the screw hole, and no influence is generated on furniture.
The invisible connecting piece disclosed in the patent has the problems of complex structural design, high requirement on the punching size of the plate and complicated installation.
Disclosure of utility model
The utility model aims at: in order to solve the technical problems, the utility model provides a middle column type invisible connecting piece.
The utility model adopts the following technical scheme for realizing the purposes:
The utility model provides a middle column type invisible connecting piece, which comprises an expansion shell and a middle column, wherein one end in the expansion shell is provided with a composite plug hole, the other end of the expansion shell is provided with an expansion hole, the maximum aperture of the composite plug hole is larger than that of the expansion hole, the middle column is initially arranged in the composite plug hole of the expansion shell, and the middle column enters the expansion hole under the action of external force, so that the expansion hole is expanded outwards.
Specifically, the middle column type invisible connecting piece is convenient to install, and two plates (a bottom plate and a partition plate, wherein the expansion outer diameter of an expansion hole is larger than the aperture of the bottom plate) can be tightly connected together by simply knocking with a rubber hammer, and the rear surfaces of the two furniture plates are not provided with any mounting holes after being mounted by the middle column type invisible connecting piece.
In one embodiment, external teeth B are provided at the upper end of the outer wall of the expansion shell corresponding to the composite plug hole, and external teeth a are provided on the outer wall of the expansion shell corresponding to the expansion hole.
In one embodiment, the external teeth B and the external teeth a are helical teeth or other shapes of anti-drop teeth, the external teeth B are multi-lobe teeth or single-lobe teeth, and the external teeth a are multi-lobe teeth or single-lobe teeth.
Specifically, the tooth shapes of the external teeth B and the external teeth a may be helical teeth, or may be other tooth shapes achieving the same effect, and may be multi-lobe teeth or single-lobe teeth.
In one embodiment, the composite plug hole comprises an upper end hole, a transition hole and a conical hole which are sequentially communicated from top to bottom, the aperture of the upper end hole is larger than that of the transition hole, the large-diameter end of the conical hole is communicated with the transition hole, the diameter of the large-diameter end of the conical hole is larger than that of the transition hole, and the diameter of the small-diameter end of the conical hole is the same as that of the expansion hole.
In one embodiment, the middle column comprises an upper end column, a transition column and a conical column which are sequentially arranged from top to bottom, the diameter of the upper end column is matched with the aperture of the upper end hole, the diameter of the transition column is matched with the aperture of the transition hole, and the size of the conical column is matched with the size of the conical hole.
Specifically, the conical column at the front end of the middle column is an inclined plane, the middle column is knocked downwards, and the inclined plane drives the expansion hole to drive the external tooth A to expand outwards, so that the external tooth A and the hole wall of the bottom plate to be assembled are clamped and do not fall off.
In one embodiment, the expansion shell comprises a first shell unit and a second shell unit, the first shell unit and the second shell unit being detachably connected.
In one embodiment, one side of the first housing unit and the second housing unit are connected by a hinge, and the other side of the first housing unit and the second housing unit are connected by a locker.
In one embodiment, the first housing unit and the second housing unit are independent structures, and two sides of the first housing unit and two sides of the second housing unit are detachably connected through a lock catch or a positioning pin.
Specifically, the expansion shell can be buckled by adopting a hinge structure, the first shell unit and the second shell unit are combined into a whole, and also can be in an independent split structure, and can be detachably connected by adopting a lock catch or a locating pin and the like, so that the same effect is achieved.
In one embodiment, the material of the expansion shell is plastic.
In one embodiment, the middle column is made of a metal material.
Specifically, the middle column is made of metal materials, and the bearing capacity of the plate is stronger after installation and connection.
The working process during assembly is as follows:
S1, placing a center column into a composite plug hole of a plastic expansion shell, buckling the expansion shell (buckling a first shell unit and a second shell unit), locking the expansion shell (locking the first shell unit and the second shell unit to enable the first shell unit and the second shell unit to be integrated), and finishing the assembly of the center column invisible connecting piece;
S2, inserting the middle column type invisible connecting piece into a hole of a bottom plate (a first plate to be connected), knocking the middle column into an expansion hole, and enabling the expansion hole to drive the external teeth A to expand outwards so as to clamp the external teeth A with the hole of the bottom plate, so that the middle column type invisible connecting piece is connected with the bottom plate into a whole;
S3, aligning the mounting hole of the partition plate (the second plate to be connected) with the middle column type invisible connecting piece on the bottom plate, knocking the partition plate downwards by using a rubber hammer, and after knocking in place, enabling the bottom plate to be in contact with the surface of the partition plate, realizing that the bottom plate is connected with the partition plate without gaps, wherein the outer diameter of the external tooth B is larger than the mounting hole of the partition plate, so that the external tooth B is convenient to clamp with the mounting hole of the partition plate.
The beneficial effects of the utility model are as follows:
1. The utility model has reasonable design and convenient installation, and can tightly connect two plates (a bottom plate and a partition plate, two furniture plates to be connected by the middle column type invisible connecting piece, and the rear surfaces of the two plates after installation have no mounting holes) by using a simple tool for knocking by a rubber hammer.
2. The expansion shell can adopt a hinge structure for buckling, the first shell unit and the second shell unit are combined into a whole, and also can be of independent split structure, and the expansion shell can be detachably connected by adopting a lock catch or a locating pin and the like to achieve the same effect.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic structural view of a center pillar;
fig. 3 is a schematic structural view of the first housing unit or the second housing unit;
FIG. 4 is a schematic structural view of the expansion shell;
FIG. 5 is a schematic view of the structure of the present utility model when installed;
Reference numerals: 1-center pillar, 11-upper end pillar, 12-transition pillar, 13-taper pillar, 2-first housing unit, 21-upper end hole, 22-transition hole, 23-taper hole, 24-expansion hole, 3-second housing unit, 4-external tooth B, 5-external tooth A, 6-partition, 7-base plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In describing embodiments of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inner", "outer", "upper", etc. are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in place when the inventive product is used, are merely for convenience of description and simplification of description, and are not indicative or implying that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Examples
As shown in fig. 1 to 5, the present embodiment provides a middle column type invisible connector, which comprises an expansion shell and a middle column 1, wherein one end in the expansion shell is a composite plug hole, the other end is an expansion hole 24, the maximum aperture of the composite plug hole is larger than that of the expansion hole 24, the middle column 1 is initially arranged in the composite plug hole of the expansion shell, and the middle column 1 enters the expansion hole 24 under the action of external force, so that the expansion hole 24 expands outwards.
Specifically, the invisible connecting piece of the middle column 1 is convenient to install, two plates (the bottom plate 7 and the partition plate 6, the expansion outer diameter of the expansion hole 24 is larger than the aperture of the bottom plate 6 only by using a simple tool rubber hammer for knocking, two furniture plates connected by the invisible connecting piece of the middle column 1 are tightly connected together, and the rear surfaces of the two plates are not provided with any mounting holes after being mounted), and the structure and the size of the invisible connecting piece of the middle column 1 are obvious to technicians in the furniture industry, so that any modification on the basis of the structure and the size of the invisible connecting piece of the middle column 1 is all in a protection range.
In one embodiment, the outer wall of the expansion shell corresponding to the composite plug hole is provided with external teeth B4 at the upper end, and the outer wall of the expansion shell corresponding to the expansion hole 24 is provided with external teeth A5.
In one embodiment, external teeth B4 and external teeth A5 are helical teeth or other shaped anti-slip teeth, external teeth B4 are multi-lobe teeth or single-lobe teeth, and external teeth A5 are multi-lobe teeth or single-lobe teeth.
Specifically, the tooth shapes of the external teeth B4 and the external teeth A5 may be helical teeth, or may be other tooth shapes achieving the same effect, and may be multi-lobe teeth or single-lobe teeth.
In one embodiment, the composite plug hole comprises an upper end hole 21, a transition hole 22 and a conical hole 23 which are sequentially communicated from top to bottom, the aperture of the upper end hole 21 is larger than that of the transition hole 22, the large-diameter end of the conical hole 23 is communicated with the transition hole 22, the diameter of the large-diameter end of the conical hole 23 is larger than that of the transition hole 22, and the diameter of the small-diameter end of the conical hole 23 is the same as that of the expansion hole 24.
In one embodiment, the middle column 1 comprises an upper end column 11, a transition column 12 and a conical column 13 which are sequentially arranged from top to bottom, wherein the diameter of the upper end column 11 is matched with the aperture of the upper end hole 21, the diameter of the transition column 12 is matched with the aperture of the transition hole 22, and the size of the conical column 13 is matched with the size of the conical hole 23.
Specifically, the conical column 13 at the front end of the middle column 1 is an inclined plane, the middle column 1 is knocked downwards, and the inclined plane drives the expansion hole 24 to drive the external teeth A5 to expand outwards, so that the external teeth A5 are clamped with the hole wall of the bottom plate 7 to be assembled and do not fall off.
In one embodiment, the expansion shell comprises a first shell unit 2 and a second shell unit 3, the first shell unit 2 and the second shell unit 3 being detachably connected.
In one embodiment, one side of the first housing unit 2 and the second housing unit 3 are connected in a hinged manner, and the other side of the first housing unit 2 and the second housing unit 3 are connected by a locker.
In one embodiment, the first housing unit 2 and the second housing unit 3 are independent structures, and both sides of the first housing unit 2 and the second housing unit 3 are detachably connected through a latch or a positioning pin.
Specifically, the expansion shell can be buckled by adopting a hinge structure, the first shell unit 2 and the second shell unit 3 are combined into a whole, and the expansion shell can also be in an independent split structure, and can be detachably connected by adopting a lock catch, a locating pin and the like to achieve the same effect.
In one embodiment, the material of the expansion shell is plastic.
In one embodiment, the center pillar 1 is made of a metal material.
Specifically, the middle column 1 is made of metal materials, and the bearing capacity of the plate is stronger after installation and connection.
The working process during assembly is as follows:
S1, placing a center column 1 into a composite plug hole of a plastic expansion shell, buckling the expansion shell (buckling a first shell unit 2 and a second shell unit 3), locking the expansion shell (locking the first shell unit 2 and the second shell unit 3 to enable the first shell unit 2 and the second shell unit 3 to be integrated), and completing the assembly of the center column 1 type invisible connecting piece;
S2, inserting the middle column 1 type invisible connecting piece into a hole of a bottom plate 7 (a first plate to be connected), knocking the middle column 1 into an expansion hole 24, and enabling the expansion hole 24 to drive external teeth A5 to expand outwards so as to clamp the external teeth A5 with the hole of the bottom plate 7, so that the middle column 1 type invisible connecting piece is connected with the bottom plate 7 into a whole;
S3, aligning the mounting hole of the partition plate 6 (the second plate to be connected) with the center column 1 type invisible connecting piece on the bottom plate 7, knocking the partition plate 6 downwards by using a rubber hammer, and after knocking in place, contacting the surface of the bottom plate 7 with the partition plate 6 to realize that the bottom plate 7 is connected with the partition plate 6 without gaps, wherein the outer diameter of the external tooth B4 is larger than the mounting hole of the partition plate 6, so that the external tooth B4 is convenient to clamp with the mounting hole of the partition plate 6.
Claims (7)
1. The middle column type invisible connecting piece is characterized by comprising an expansion shell and a middle column (1), wherein one end in the expansion shell is a composite plug hole, the other end of the expansion shell is an expansion hole (24), the maximum aperture of the composite plug hole is larger than that of the expansion hole (24), the middle column (1) is initially arranged in the composite plug hole of the expansion shell, and the middle column (1) enters the expansion hole (24) under the action of external force, so that the expansion hole (24) expands outwards;
The composite plug hole comprises an upper end hole (21), a transition hole (22) and a conical hole (23) which are sequentially communicated from top to bottom, the aperture of the upper end hole (21) is larger than that of the transition hole (22), the large-diameter end of the conical hole (23) is communicated with the transition hole (22), the diameter of the large-diameter end of the conical hole (23) is larger than that of the transition hole (22), and the diameter of the small-diameter end of the conical hole (23) is the same as that of the expansion hole (24);
The middle column (1) comprises an upper end column (11), a transition column (12) and a conical column (13) which are sequentially arranged from top to bottom, the diameter of the upper end column (11) is matched with the aperture of the upper end hole (21), the diameter of the transition column (12) is matched with the aperture of the transition hole (22), and the size of the conical column (13) is matched with the size of the conical hole (23).
2. The invisible center pillar type connector according to claim 1, wherein an external tooth B (4) is provided at an upper end of an outer wall of the expansion shell corresponding to the composite plug hole, and an external tooth a (5) is provided on an outer wall of the expansion shell corresponding to the expansion hole (24).
3. A socket contact-and-socket joint according to claim 2, wherein the external teeth B (4) and the external teeth a (5) are helical teeth, the external teeth B (4) are multi-lobe teeth or single-lobe teeth, and the external teeth a (5) are multi-lobe teeth or single-lobe teeth.
4. A socket-and-spigot joint according to claim 1, wherein the expansion shell comprises a first shell unit (2) and a second shell unit (3), the first shell unit (2) and the second shell unit (3) being detachably connected.
5. A newel invisible connector according to claim 4, wherein one side of the first housing unit (2) and the second housing unit (3) are connected in a hinged manner, and the other side of the first housing unit (2) and the second housing unit (3) are connected by means of a locking device.
6. The invisible center pillar type connector according to claim 4, wherein the first housing unit (2) and the second housing unit (3) are of independent structures, and both sides of the first housing unit (2) and both sides of the second housing unit (3) are detachably connected through a lock catch or a positioning pin.
7. The center pillar type invisible connector according to claim 1, wherein the expansion shell is made of plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323016973.8U CN221144934U (en) | 2023-11-07 | 2023-11-07 | Center column type invisible connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323016973.8U CN221144934U (en) | 2023-11-07 | 2023-11-07 | Center column type invisible connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221144934U true CN221144934U (en) | 2024-06-14 |
Family
ID=91429872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323016973.8U Active CN221144934U (en) | 2023-11-07 | 2023-11-07 | Center column type invisible connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221144934U (en) |
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2023
- 2023-11-07 CN CN202323016973.8U patent/CN221144934U/en active Active
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