CN211778365U

CN211778365U - Furniture and telescopic invisible connecting structure thereof

Info

Publication number: CN211778365U
Application number: CN202020140747.8U
Authority: CN
Inventors: 武敬华
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-10-27
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a furniture and telescopic stealthy connection structure thereof, the utility model discloses a telescopic stealthy connection structure of furniture is used for connecting two boards perpendicularly, and two boards include first board and second board, offer the both ends and seal and have the T-slot that narrow groove held and wide groove held at the face of first board. The connection structure further includes: t-shaped groove plug connector, anti-drop piece, elastic piece and connecting plate. The T-shaped groove plug connector comprises a plug part, the cross section of the plug part is matched with the width of a groove opening at the narrow groove end of the T-shaped groove, one end of the plug part is provided with a tensioning head part, the tensioning head part is matched with the groove bottom of the T-shaped groove, and the other end of the plug part is detachably connected with an anti-falling part; the connecting plate is movably sleeved on the inserting part and fixedly connected to the mounting end face of the second plate, a counter bore is formed in the mounting end face, and the anti-falling part is arranged in the counter bore and extrudes the elastic part at the bottom of the counter bore. The utility model discloses simple structure, furniture board's equipment order is unrestricted, improves the packaging efficiency of furniture, reduces equipment cost.

Description

Furniture and telescopic invisible connecting structure thereof

Technical Field

The utility model belongs to the technical field of furniture, concretely relates to furniture and with two blocks of perpendicular telescopic stealthy connection structure who links together.

Background

At present, the production and assembly process of the furniture industry generally adopts the process of three-in-one connecting piece (or eccentric connecting piece) to realize the assembly of furniture besides the traditional tenon-and-mortise structure. The three-in-one connecting piece has a history of nearly fifty years since the invention popularization in the seventies of the last century till now, and the basic structure principle is not fundamentally changed, and occupies the mainstream market of furniture assembly technology. Because the connection problem of furniture panel has only been solved to trinity connecting piece, its structural principle has congenital design defect, and the key performance is: firstly, the locking nut is exposed, so that the integral attractiveness of furniture is influenced; secondly, the pre-buried technology is not firm, and furniture is easy to loosen during transportation or repeated disassembly and assembly, which affects the reuse of the furniture and even causes the scrapping of the furniture.

Along with the continuous improvement of the living standard of people, the requirements of consumers on furniture are not only limited to practicability, but also put forward higher requirements on the firmness of attractiveness, repeated disassembly and assembly and carrying. For example, the chinese patent specification of CN106194944B published in 3, 16 and 2018 discloses an invisible connection structure for furniture, which is used for vertically connecting two boards, wherein a board surface of a first board is provided with a T-shaped slot, a first plug connector is fixed on the T-shaped slot, a side wall of a second board is provided with a plug-in groove and a locking groove with an opening at an end, and a second plug connector is fixed in the plug-in groove. The inserting groove corresponds to the inserting T-shaped groove in position, the locking groove corresponds to the locking T-shaped groove in position, and the first connector is inserted into the second connector; the locking seat is fixed in the locking groove of the second plate through screws, the locking seat is in threaded connection with the locking bolt, and the locking bolt abuts against the first plug connector in the locking T-shaped groove. This kind of stealthy connection structure can guarantee the quality of assembling, assemble the firm stability of furniture, still conveniently assembles after the dismantlement, nevertheless, discovers in the use:

1) the structure is too complicated and the cost is high.

2) In the assembling process of the furniture, if the end parts of the two parallel vertical plates or the transverse plates are fixedly connected in advance, the middle plates are not easy to connect, the mounting sequence of the plates is limited, the assembling efficiency of the furniture is reduced, and the assembling cost is improved.

Disclosure of Invention

In order to overcome the above-mentioned defect, the utility model discloses a first technical problem that will solve is: the utility model provides a telescopic stealthy connection structure of furniture, its complete stealthy connection that not only can realize furniture board, simple structure moreover, furniture board's equipment order is unrestricted, has improved the packaging efficiency of furniture, has reduced the equipment cost.

In order to solve the technical problem, the technical scheme of the utility model is that:

the furniture telescopic invisible connecting structure is used for vertically connecting two plates, the two plates comprise a first plate and a second plate, a T-shaped groove with two closed ends is formed in the surface of the first plate, and the T-shaped groove is provided with a narrow groove end and a wide groove end; the connection structure further includes: the T-shaped groove plug connector, the anti-falling part, the elastic part and the connecting plate; the T-shaped groove plug connector comprises a plug part, the cross section of the plug part is matched with the width of a notch at the narrow groove end of the T-shaped groove, one end of the plug part is provided with a tensioning head part, the tensioning head part is matched with the groove bottom of the T-shaped groove, and the other end of the plug part is detachably connected with the anti-falling part; the connecting plate is movably sleeved on the inserting part and fixedly connected to the mounting end face of the second plate, a counter bore is formed in the mounting end face, and the anti-falling part is arranged in the counter bore and extrudes the elastic part at the bottom of the counter bore.

Furthermore, the cross section of the insertion part is a non-circular cross section, the connecting plate is axially and slidably sleeved on the insertion part, and the cross section of the tensioning head is a non-circular cross section.

Furthermore, the cross section of the insertion part is an oblate cross section, and the cross section of the tensioning head part is an oblate cross section.

Further, the T-shaped groove plug connector is in threaded connection with the anti-falling part.

Furthermore, a nut is arranged inside the anti-dropping part, a bolt is arranged in the T-shaped groove plug connector, and the anti-dropping part and the T-shaped groove plug connector are connected together through the nut and the bolt.

Further, the anti-slip part is a cylindrical anti-slip part.

Further, the elastic member is a compression spring.

The utility model discloses the second technical problem that will solve is: the furniture is simple in structure, the assembling sequence of the furniture boards is not limited, the assembling efficiency of the furniture is improved, and the assembling cost is reduced.

furniture, comprising: the furniture telescopic invisible connecting structure comprises two first plates which are arranged in parallel, wherein a second plate is vertically arranged between the two first plates, the second plate is provided with two connecting end surfaces which are arranged oppositely, and at least one connecting end surface and the surface of the first plate are provided with the furniture telescopic invisible connecting structure.

Further, the furniture also comprises a hidden positioning structure.

Further, the invisible positioning structure comprises: the positioning hole is formed in the plate surface of the first plate; the positioning pin mounting hole is formed in the connecting end face of the second plate; the positioning pin is elastically installed in the positioning pin installation hole, when the head of the positioning pin extends into the positioning hole, the second plate and the first plate are positioned, and the head of the positioning pin is provided with a breakable groove which is broken when the radial force exceeds the specified limit.

After the technical scheme is adopted, the beneficial effects of the utility model are that:

the utility model discloses a telescopic stealthy connection structure of furniture is used for connecting two boards perpendicularly, and two boards include first board and second board, offer the both ends at the face of first board and seal and have the T-slot that slot end and slot end. The connection structure further includes: t-shaped groove plug connector, anti-drop piece, elastic piece and connecting plate. The T-shaped groove plug connector comprises a plug part, the cross section of the plug part is matched with the width of a groove opening at the narrow groove end of the T-shaped groove, one end of the plug part is provided with a tensioning head part, the tensioning head part is matched with the groove bottom of the T-shaped groove, and the other end of the plug part is detachably connected with an anti-falling part; the connecting plate is movably sleeved on the inserting part and fixedly connected to the mounting end face of the second plate, a counter bore is formed in the mounting end face, and the anti-falling part is arranged in the counter bore and extrudes the elastic part at the bottom of the counter bore.

1) When the connecting plate of the telescopic invisible connecting piece of the furniture is fixedly connected to the second plate, the inserting part of the telescopic invisible connecting piece is inserted into the T-shaped groove on the first plate. After the two plates are connected, the telescopic invisible connecting structure is completely hidden in the plates, so that the complete invisible connection of the furniture plates can be realized, the overall attractive effect is improved, and the structure is simple.

2) When the furniture is assembled, the connecting plate of the telescopic invisible connecting piece is fixedly connected onto the second plate, the anti-falling piece and the elastic piece of the connecting piece are arranged in the hole on the second plate, the insertion part of the connecting piece is inserted into the wide groove end of the T-shaped groove on the first plate during installation, then the connecting piece is pushed into the narrow groove end of the T-shaped groove, and the narrow groove end is limited to the insertion part. Due to the use of the elastic piece, in the installation process, the axial movement range of the T-shaped groove plug connector is larger, if the end parts of the two first plates or the second plates which are arranged in parallel are fixedly connected in advance, the middle plates are easily connected, the assembly sequence of the furniture plates is not limited, the assembly efficiency of the furniture is improved, and the assembly cost is reduced.

3) During installation, the anti-falling part is arranged in the counter bore of the installation end face of the second plate, so that the anti-falling part not only can play a role in positioning, but also can improve the supporting strength of the plate to the T-shaped groove plug connector, and the plate cannot be damaged due to push-pull stress in the installation process.

Drawings

Fig. 1 is a perspective view of a piece of furniture according to the present invention;

fig. 2 is a schematic structural diagram of a piece of furniture according to the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged partial schematic view of region B of FIG. 3 rotated 90 clockwise;

FIG. 5 is an enlarged partial schematic view of region C of FIG. 3 rotated 90 clockwise;

FIG. 6 is an enlarged fragmentary structural schematic view of the first plate of FIG. 1;

FIG. 7 is an enlarged cross-sectional view taken along line D-D of FIG. 6;

FIG. 8 is an enlarged schematic view of the second plate of FIG. 1;

FIG. 9 is a partial schematic view in section along E-E of FIG. 8;

FIG. 10 is an enlarged, fragmentary, schematic view of region F of FIG. 9;

FIG. 11 is an exploded view of the T-slot connector, the release preventing member, the elastic member and the connecting plate of the present invention;

FIG. 12 is a cross-sectional view of the T-slot connector, the release preventing member, the elastic member and the connecting plate of the present invention;

FIG. 13 is a perspective view of the locating pin of FIG. 1;

FIG. 14 is a perspective view of the body of the locating pin of FIG. 13;

in the figure, 1-compression spring, 2-bolt, 3-T-slot connector, 31-plug part, 311-tensioning head, 4-connecting plate, 41-connecting screw mounting hole, 5-nut, 6-anti-drop piece, 61-limiting part, 7-first plate, 8-second plate, 9-first plate, 10-second plate, 11-second plate, 12-T-slot, 121-wide slot end, 122-narrow slot end, 123-T-slot bottom, 124-narrow slot end notch, 13-positioning hole, 14-positioning pin, 141-body, 1411-easy-to-break slot, 142-positioning pin spring mounting hole, 15-positioning pin spring, 16-connecting screw, 17-positioning pin mounting hole, 18-plug groove, 19-connecting screw thread holes, 20-counter bores and 21-invisible connecting pieces.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Referring to figures 1 to 10 together, there is provided a piece of furniture comprising two parallel first panels with a second panel disposed vertically between the two first panels, preferably three, parallel second panels. The second board has two connection terminal surfaces that set up relatively, is provided with the telescopic stealthy connection structure of furniture between the face of at least one connection terminal surface and first board.

As shown together with fig. 1, fig. 3, fig. 4, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11 and fig. 12, the furniture telescopic invisible connecting structure is used for vertically connecting a first plate and a second plate, at least two longitudinally arranged T-shaped grooves 12 with two closed ends are formed in the plate surface of the first plate, and each T-shaped groove 12 is provided with a narrow groove end 122 and a wide groove end 121.

The telescopic invisible connecting structure of the furniture further comprises a T-shaped groove plug connector 3, a drop-proof piece 6, an elastic piece and a connecting plate 4. The T-shaped slot connector 3 comprises a plug-in part 31, the cross section of the plug-in part 31 is matched with the width of a slot end opening 124 of a slot end 122 of the T-shaped slot 12, one end of the plug-in part 31 is provided with a tensioning head 311, the tensioning head 311 is matched with a T-shaped slot bottom 123 of the T-shaped slot 12, and the other end of the T-shaped slot connector is detachably connected with a release-proof part 6. The connecting plate 4 is movably sleeved on the inserting part and is fixedly connected to the mounting end face of the second plate 10, the mounting end face is located at the bottom of the inserting groove of the formed inserting groove 18, the mounting end face is provided with a counter bore 20, and the anti-falling part 6 is arranged in the counter bore 20 and extrudes the elastic part at the bottom of the counter bore 20. The separation preventing member 6 prevents the connection plate 4 from separating from the mating part 31 of the T-slot connector 3. Two connecting screw mounting holes 41 are symmetrically arranged on the connecting plate 4, and meanwhile, two connecting screw threaded holes 19 are arranged on the mounting end face, and the two connecting screw threaded holes 19 are respectively positioned on two sides of the counter bore 20. The connecting plate 4 is fixedly attached to the mounting end surface by inserting two connecting screws 16 through the connecting screw mounting holes 41, respectively, into the connecting screw threaded holes 19 of the mounting end surface on the second plate 10. The elastic member is preferably a compression spring 1.

The cross section of the plug part 31 is preferably a non-circular cross section, the connecting plate 4 is axially slidably sleeved on the outer peripheral surface of the plug part 31, and the cross section of the tensioning head 311 is preferably a non-circular cross section.

The cross section of the socket 31 is preferably an oblate section and the cross section of the tensioning head 311 is preferably an oblate section.

The T-shaped groove plug connector 3 and the anti-falling part 6 are preferably in threaded connection. The release element 6 is preferably a cylindrical release element. Be provided with nut 5 in anticreep piece 6's inside, nut 5 can swing joint in anticreep piece 6's inside, and when nut 5 swing joint was in anticreep piece 6's inside, was close to the one end of grafting portion 31, was provided with on anticreep piece 6 and carries out spacing portion 61 of axial to nut 5. Nut 5 also can be fixed the setting in the inside of anticreep piece 6, and anticreep piece 6 can adopt the anticreep piece of plastics material, and nut 5 and anticreep piece 6 can adopt the fixed mode together of vulcanization. A bolt 2 is arranged in the T-shaped groove plug connector 3, and the anti-falling part 6 and the T-shaped groove plug connector 3 are connected together through a nut 5 and the bolt 2.

As shown in fig. 1, 3, 5, 13, and 14, the furniture further includes a concealed positioning structure. The invisible positioning structure comprises a positioning hole 13 formed in the plate surface of the first plate 7 and a positioning pin mounting hole 17 formed in the connecting end surface of the second plate 10. The positioning pin 14 is elastically fitted into the positioning pin fitting hole 17, and when the head of the positioning pin 14 is inserted into the positioning hole 13, the second plate 10 and the first plate 7 are positioned, and the head of the positioning pin 14 is provided with a breakable groove 1411 which breaks when the radial force applied thereto exceeds a predetermined limit.

A positioning pin spring mounting hole 142 is formed in the body 141 of the positioning pin 14, and a positioning pin spring 15 is arranged in the positioning pin spring mounting hole 142, so that the positioning pin 14 is ensured to be elastically mounted in the positioning pin mounting hole 17.

The body 141 of the dowel pin 14 is preferably a cylindrical body. The frangible groove 1411 provided on the cylindrical body 141 is preferably an annular groove.

The assembly process of the furniture of the utility model is described in detail as follows:

as shown in the drawing, a first plate 7 and a first plate 9 of the furniture are arranged in parallel, the first plate 7 is positioned on the left side, the first plate 9 is positioned on the right side, if a second plate 8 and a second plate 11 positioned on both end portions are assembled in advance, the second plate 8 is positioned on the upper side, and the second plate 11 is positioned on the lower side, then a side wall of the second plate 10 positioned in the middle position is connected with the first plate 7 by using a furniture telescopic invisible connecting structure. When the furniture is assembled, at the position where the second plate 10 is connected, at least two closed-end T-shaped grooves 12 are formed on the surface of the first plate 7, and each T-shaped groove 12 has a wide groove end 121 and a narrow groove end 122. A positioning hole 13 is further formed between the two T-shaped grooves 12, and the T-shaped grooves 12 and the positioning hole 13 are arranged in a linear shape.

At least two closed-end T-shaped grooves 12 are formed in the inner side of the first plate 9, and each T-shaped groove 12 is provided with a wide groove end 121 and a narrow groove end 122.

An inserting groove 18 with a closed end is formed in one side wall of the second plate 10 at a position corresponding to the T-shaped groove 12 of the first plate 7, a counter bore 20 is formed at the bottom of the inserting groove 18, and connecting screw threaded holes 19 are formed in two sides of the counter bore 20 respectively.

During assembly, the connecting plate 4 of the telescopic invisible connecting structure of the furniture is placed on the mounting end face of the bottom of the inserting groove of the inserting groove 18 on the second plate 10, two connecting screws 16 are respectively mounted on the connecting plate 4 through connecting screw mounting holes 41 on the connecting plate 4, then the two connecting screws 16 are respectively mounted in two connecting screw threaded holes 19 at the bottom of the inserting groove 18, at the moment, the connecting plate 4 is fixedly connected in the inserting groove 18, and meanwhile, the anti-falling part 6 and the compression spring 1 are located in the counter bore 20.

At the same time, the body 141 of the dowel 14 and the dowel spring 15 are inserted into the dowel mounting hole 17 on the second plate 10.

A coupling structure for coupling the first plate and the second plate is also provided on the other side wall of the second plate 10 at a position corresponding to the T-shaped groove 12 of the first plate 9. In order to reduce the cost, a compression spring 1, a screw 2 and a nut 5 in the telescopic invisible connecting structure of the furniture are removed, and a connecting plate 4, a T-shaped groove plug connector 3 and a release-preventing piece 6 are integrally injection-molded to form an invisible connecting piece 21. The connecting plate of the invisible connecting piece 21 is fixedly connected in the inserting groove 18 of the second plate 10, and at the moment, the anti-falling piece of the invisible connecting piece 21 is positioned in the counter bore of the inserting groove.

Then, the insertion portion 31 of the T-shaped slot connector 3 of the furniture telescopic invisible connecting structure of one side wall of the second board 10 is inserted into the wide slot end 121 of the corresponding T-shaped slot 12, and at the same time, the insertion portion of the T-shaped slot connector of the invisible connecting member 21 of the other side wall of the second board 10 is inserted into the wide slot end of the corresponding T-shaped slot. And simultaneously, the inserting part 31 of the T-shaped groove inserting piece 3 of the telescopic invisible connecting structure of the furniture and the inserting part of the T-shaped groove inserting piece of the invisible connecting piece 21 are pushed into the narrow groove ends of the corresponding T-shaped grooves, and meanwhile, the head parts of the bodies 141 of the positioning pins 14 are also inserted into the positioning holes 13 on the first plate 7.

Due to the existence of the compression spring 1 of the telescopic invisible connecting structure of the furniture and the positioning pin spring 15 in the invisible positioning structure, when the second plate 10 located at the middle position is installed, the compression spring 1 is compressed, the positioning pin spring 15 is compressed, the T-shaped slot plug-in connector 3 and the anti-drop part 6 move axially together, at the moment, the T-shaped slot plug-in connector 3 is close to the side wall of the second plate 10, an installation space is reserved for the second plate 10, when the T-shaped slot plug-in connector 3 is inserted into the wide slot end 121 of the corresponding T-shaped slot 12 on the first plate 7, the compression spring 1 resets, the tensioning head 311 of the T-shaped slot plug-in connector 3 is pushed to the T-shaped slot bottom 124 of the T-shaped slot 12, and then the second plate 10 is pushed into the narrow slot end. In this installation process, the installation of the sheet material in the intermediate position is facilitated more by the presence of the compression spring 1.

When mounting the second plate 8 located above and the second plate 11 located below, the connection of the first and second plates may be achieved using invisible spacers 21 in order to reduce costs.

In the process of installation or dismantlement, when needs dismantle panel, according to top-down's order, dismantle the second board in order. When the tensioning head 311 of the T-slot connector 3 and the tensioning head of the invisible connector 21, which connect each second plate with the first plate, are respectively pulled into the wide slot ends from the narrow slot ends of the corresponding T-slots, when the second plate 10 located at the intermediate position is disassembled, the body 141 of the positioning pin 14 is broken at the breakable slot 1411 due to the breakable slot 1411 on the body 141 of the positioning pin 14, so that the second plate 10 located at the intermediate position is smoothly removed.

The technical features (such as the first plate and the second plate) referred to in the specification are only used for distinguishing the technical features, and do not represent the position relationship, the installation sequence, the working sequence and the like among the technical features.

In the description of the present specification, it is to be understood that the terms "radial," "inboard," "side wall," "trough bottom," "longitudinal," "above," "below," "intermediate position," and the like are based on the terms of orientation or positional relationship shown in the drawings and are used merely for convenience in describing and simplifying the invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the invention.

Although specific embodiments of the present invention have been described above, it will be understood by those skilled in the art that the described embodiments are only some of the embodiments of the present invention, rather than all embodiments, which are given by way of illustration only, and the scope of the present invention is defined by the appended claims. Without any inventive step, those skilled in the art can make various changes or modifications to the embodiments without departing from the spirit and scope of the present invention.

Claims

1. The furniture telescopic invisible connecting structure is used for vertically connecting two plates, the two plates comprise a first plate and a second plate, a T-shaped groove with two closed ends is formed in the surface of the first plate, and the T-shaped groove is provided with a narrow groove end and a wide groove end; it is characterized in that the connecting structure further comprises:

the T-shaped groove plug connector, the anti-falling part, the elastic part and the connecting plate; the T-shaped groove plug connector comprises a plug part, the cross section of the plug part is matched with the width of a notch at the narrow groove end of the T-shaped groove, one end of the plug part is provided with a tensioning head part, the tensioning head part is matched with the groove bottom of the T-shaped groove, and the other end of the plug part is detachably connected with the anti-falling part; the connecting plate is movably sleeved on the inserting part and fixedly connected to the mounting end face of the second plate, a counter bore is formed in the mounting end face, and the anti-falling part is arranged in the counter bore and extrudes the elastic part at the bottom of the counter bore.

2. The telescopic invisible furniture connecting structure according to claim 1, wherein the cross section of the insertion part is a non-circular cross section, the connecting plate is axially slidably sleeved on the insertion part, and the cross section of the tensioning head is a non-circular cross section.

3. The furniture telescopic concealed connecting structure according to claim 2, wherein the cross section of said insertion portion is an oblate section, and the cross section of said tensioning head portion is an oblate section.

4. The furniture telescopic invisible connecting structure of claim 1, wherein the T-shaped groove plug connector is in threaded connection with the anti-falling part.

5. The retractable invisible furniture connecting structure according to claim 4, wherein a nut is provided inside the anti-falling member, a bolt is provided inside the T-shaped groove plug connector, and the anti-falling member and the T-shaped groove plug connector are connected together through the nut and the bolt.

6. The furniture according to claim 1, wherein the anti-slip member is a cylindrical anti-slip member.

7. The furniture according to claim 1, wherein the elastic member is a compression spring.

8. Furniture, comprising:

the furniture telescopic invisible connecting structure is characterized in that the furniture telescopic invisible connecting structure is arranged between at least one connecting end face and the board surface of the first board, and the furniture telescopic invisible connecting structure is arranged between the at least one connecting end face and the board surface of the first board.

9. The furniture of claim 8, further comprising a concealed positioning structure.

10. The furniture of claim 9, wherein the invisible positioning structure comprises:

the positioning hole is formed in the plate surface of the first plate;

the positioning pin mounting hole is formed in the connecting end face of the second plate;

the positioning pin is elastically installed in the positioning pin installation hole, when the head of the positioning pin extends into the positioning hole, the second plate and the first plate are positioned, and the head of the positioning pin is provided with a breakable groove which is broken when the radial force exceeds the specified limit.