CN215293121U

CN215293121U - 45-degree invisible connecting concave part and convex part matched for use

Info

Publication number: CN215293121U
Application number: CN202121317917.6U
Authority: CN
Inventors: 武敬华
Original assignee: Weifang Qirenzhizao Hardware Co ltd
Current assignee: Weifang Qirenzhizao Hardware Co ltd
Priority date: 2021-06-12
Filing date: 2021-06-12
Publication date: 2021-12-24
Anticipated expiration: 2031-06-12

Abstract

The utility model discloses a 45 degrees stealthy concave part and protruding piece of connecting of angle that matches use is provided with first component fixed part on the body of connecting the concave part, joint portion and the open chamber that holds in one side, first component fixed part is provided with first component binding face, joint portion is provided with protruding piece direction inclined plane, protruding piece direction inclined plane becomes 45 degrees angles with first component binding face, joint portion seted up the protruding piece direction inclined plane of perpendicular to and with hold the communicating joint hole in chamber, the joint hole has seted up the card entry in the uncovered side that holds the chamber. Be provided with concave part direction inclined plane and second component binding face on connecting the body of protruding, concave part direction inclined plane and second component binding face become 45 degrees angles, and concave part direction inclined plane is provided with the joint bulge that outwards stretches out. The two connecting pieces are matched for use, the 45-degree invisible connection of the two components can be realized, the processing and the installation are convenient, and a wide application prospect is opened up for the personalized development of furniture.

Description

45-degree invisible connecting concave part and convex part matched for use

Technical Field

The utility model relates to a hardware fitting technical field, concretely relates to supporting protruding and the concave part that is used and is fit for stealthy connection of 45 degrees angles.

Background

Hardware accessories refer to machine parts or components made of hardware, as well as some small items of hardware. It can be used alone or as an assistant tool. Such as hardware tools, hardware parts, daily hardware, building hardware, security articles and the like. The material is not limited to metal, engineering plastics and the like, and the like are widely used.

For the furniture industry, the market commonly adopts the technology of three-in-one connecting piece (or eccentric connecting piece) to realize the assembly of furniture components (mainly plates). 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. But the connection problem of furniture panel has only been solved to trinity connecting piece, and its structural principle has congenital design defect, and the main 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 requirement of consumers on furniture is not only limited to the practicability, but also provides higher requirements on the aesthetic property, the repeated disassembly and assembly and the firmness of carrying, and a new connecting process is urgently needed to solve the problems of the traditional three-in-one connecting process.

Invisible connection structures have been in compliance with consumer demands and have been greatly developed in recent years.

The invention of Chinese patent CN106194944B discloses a hidden connection structure for furniture, which is used for vertically connecting two boards, wherein concave-convex plug connectors which are mutually matched are respectively fixed on the two boards, and the connectors are hidden in the boards, so that the overall effect is attractive. During the equipment, through locking bolt and locking seat threaded connection, can be with two vertical taut and be connected together of board, during the dismantlement, only need loosen locking bolt and can unpack two boards apart, the packaging efficiency has been improved greatly to this kind of structure of "inserting the back lock before", and convenient to detach reassembles.

In order to simplify the invisible connection structure, the chinese invention patent CN111173815A also discloses a retractable invisible connection structure, in which the connection member can elastically extend and retract, when the installation space is limited, for example, the upper and lower plates are installed, when the middle plate is installed, the insertion part of the connection member is elastically compressed, and when the insertion part meets the wide slot end of the T-shaped slot of the other plate, the connection member is elastically released, and then the connection member is pushed into the narrow slot end of the T-shaped slot, and the narrow slot end limits the insertion part. The connecting structure is simple, the assembling sequence of the furniture plates is not limited, the assembling efficiency of the furniture is improved, and the assembling cost is reduced.

However, for some application scenarios with angle connection requirements, such as 45 degrees, the existing hardware fittings are difficult to meet the requirements, and the requirements of furniture personalized design and furniture assembly are severely limited.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses solve two technical problems, one is to provide a 45 degrees stealthy connection concave part, and the other is to provide a 45 degrees stealthy connection convex part of angle, and these two kinds of connecting pieces cooperate the use, can realize the stealthy connection in 45 degrees angles of two components, and processing, simple to operate have opened up wide space for the individualized development of furniture etc..

For solving the first technical problem, the utility model discloses a technical scheme be:

a45-degree invisible connecting concave part comprises: a female body; the concave part body is provided with the open chamber that holds in first component fixed part, joint portion and one side, first component fixed part is provided with first component binding face, joint portion is provided with protruding piece direction inclined plane, protruding piece direction inclined plane with first component binding face becomes 45 degrees angles, the joint portion seted up the perpendicular to protruding piece direction inclined plane and with hold the communicating joint hole in chamber, the joint hole is in hold the uncovered side in chamber and seted up the card entry.

The clamping inlet is in a horn mouth shape with a large outer part and a small inner part, and the minimum position of the clamping inlet is smaller than the diameter of the clamping hole.

The clamping portion is plate-shaped, a supporting wall is arranged between the periphery of the clamping portion and the first component fixing portion, and the supporting wall is enclosed to form the accommodating cavity with one side open.

Wherein, along the thickness direction, the medial extremity face of joint portion is parallel with protruding piece direction inclined plane.

The first component fixing part extends out of the open side of the accommodating cavity, and a fastener mounting hole perpendicular to the first component attaching surface is formed in the extending part.

As the same idea, in order to solve the second technical problem, the utility model discloses a technical scheme is:

a45-degree invisible connecting convex part comprises: a male body; the convex part body is provided with a concave part guiding inclined plane and a second component binding face, the concave part guiding inclined plane and the second component binding face form a 45-degree angle, the concave part guiding inclined plane is provided with a clamping protruding portion extending outwards, and the convex part body is provided with a fastener mounting hole perpendicular to the second component binding face.

The clamping convex part comprises a locking head and a clamping neck, and the clamping neck and the concave part guide inclined plane are integrated.

Wherein an inner side end surface of the locking head is parallel to the concave member guide slope.

Wherein an outer end surface of the locking head is parallel to the female guide slope.

Wherein, the locking head with the joint neck is cylindrical.

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

when the device is used, the concave part is fixed at the first sinking groove of the 45-degree groove of the first component, and the convex part is fixed at the second sinking groove of the 45-degree groove of the second component; then the bevels of the two components are opposite, and the convex part guide inclined plane is opposite to the concave part guide inclined plane; then, along the direction of groove plane, will the joint bulge follow the uncovered side is pushed into hold the chamber and follow the card income of going into the mouth card the joint hole with joint portion joint finally makes the slope face of first component with the groove face of second component pastes and locks.

The two connecting pieces are matched for use, the 45-degree invisible connection of the two components can be realized, the processing and the installation are convenient, and a wide application prospect is opened up for the personalized development of furniture.

Drawings

Fig. 1 is a perspective view of an embodiment 1 of a 45-degree invisible connecting concave part of the present invention;

fig. 2 is a perspective view of an embodiment 2 of a invisible connecting convex member with an angle of 45 degrees of the present invention;

FIG. 3 is a top view of the 45 degree invisible coupling female member shown in FIG. 1 fixedly coupled to a first member;

FIG. 4 is a top view of the 45 degree invisible joining projection of FIG. 2 fixedly joined to a second member;

FIG. 5 is a sectional view of the components shown in FIGS. 3 and 4 snapped together to form a composite;

in the figure:

100. the angle of 45 degrees is invisible and connected with the concave part; 110. a first member fixing portion; 111. a first member abutment surface; 112. a fastener mounting hole; 120. a support wall; 130. a clamping part; 131. a male member guide ramp; 132. a clamping hole; 133. a card entrance; 134. the inner side end face of the clamping part; 140. an accommodating chamber;

200. the 45-degree invisible connecting convex part; 211. a second member abutment surface; 212. a fastener mounting hole; 221. clamping the neck; 222. locking the head; 231. a female guide ramp;

300. a first member; 301. a first sink tank; 302. a fastener; 303. a bevel face;

400. a second member; 401. a second sink tank; 402. a fastener; 403. a bevel face.

Detailed Description

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

Example 1

As shown in fig. 1, a 45-degree invisible connecting concave part 100 comprises a concave part body, the concave part body is provided with a first member fixing part 110, a clamping part 130 and a cavity 140 with one side open, the first member fixing part 110 is provided with a first member binding face 111, the clamping part 130 is provided with a convex part guiding inclined face 131, the convex part guiding inclined face 131 and the first member binding face 111 form a 45-degree angle, the clamping part 130 is provided with a clamping hole 132 which is perpendicular to the convex part guiding inclined face 131 and communicated with the cavity 140, and the clamping hole 132 is provided with a clamping opening 133 at the open side of the cavity 140.

Preferably, the locking opening 133 is in a bell mouth shape with a large outer portion and a small inner portion, the minimum position of the locking opening 133 is smaller than the diameter of the locking hole 132, and the bell mouth is convenient for the matched convex part to be locked in the locking hole 132 and can also utilize the characteristic that the minimum position of the locking opening 133 is smaller than the diameter of the locking hole 132 to lock the convex part, so as to prevent the two components from being easily separated.

Preferably, the clamping portion 130 is plate-shaped, a supporting wall 120 is disposed between the periphery of the clamping portion 130 and the first component fixing portion 110, and the supporting wall 120 encloses an accommodating cavity 140 with one side open. The structure can be conveniently formed in one step through an injection molding process.

Preferably, an inner side end surface 134 (see fig. 5) of the catching portion is parallel to the male guide slope 131 in the thickness direction.

Preferably, the first member fixing portion 110 protrudes from the open side of the accommodating cavity 140, and a fastener mounting hole 112 perpendicular to the first member attaching surface 111 is opened on the protruding portion.

Example 2

The utility model provides a 45 degree stealthy protruding piece 200 of connecting, includes protruding piece body, protruding piece body is provided with concave part direction inclined plane 231 and second component binding face 211, and concave part direction inclined plane 231 becomes 45 degrees angles with second component binding face 211, and concave part direction inclined plane 231 is provided with the joint bulge that outwards stretches out, the fastener mounting hole 212 of perpendicular to second component binding face 211 is seted up to protruding piece body.

Preferably, the snap projection includes a locking head 222 and a snap neck 221, and the snap neck 221 is integrated with the female guide slope 231.

Preferably, an inner side end surface of the locking head 222 is parallel to the female guide slope 231, and an outer side end surface of the locking head 222 is parallel to the female guide slope 231.

Preferably, the locking head 222 and the snap neck 221 are cylindrical.

The female coupling member 100 of embodiment 1 and the male coupling member 200 of embodiment 2 can be applied to invisible coupling of any two members at an angle of 45 degrees, and the working principle of the invisible coupling structure at an angle of 45 degrees will be described in detail below in conjunction with the assembly process.

As shown in fig. 3 and 5, a groove is formed at an end of the first member 300, a groove surface 303 of the groove forms a 45-degree angle with one plate surface of the first member 300, a first sinking groove 301 is formed at the groove, the 45-degree invisible connecting concave part 100 is placed in the first sinking groove 301, the first member attaching surface 111 is attached to a groove bottom of the first sinking groove 301, then a fastening member 302 (for example, a screw) is inserted through the fastening member mounting hole 112, the 45-degree invisible connecting concave part 100 is fastened in the first sinking groove 301 of the first member 300, and the convex part guiding inclined surface 131 is parallel to the groove surface 303 but not lower than the groove surface.

Similarly, as shown in fig. 4 and 5, a groove is formed at an end of the second member 400, a groove surface 403 of the groove forms a 45-degree angle with one plate surface of the second member 400, a second sinking groove 401 is formed at the groove of the second member 400, the 45-degree invisible connecting convex part 200 is placed in the second sinking groove 401, the second member attachment surface 211 is attached to a groove bottom of the second sinking groove 401, then a fastening member 402 (for example, a screw) is inserted through the fastening member mounting hole 212, the 45-degree invisible connecting convex part 200 is fastened in the second sinking groove 401 of the second member 400, and the concave part guide inclined surface 231 is parallel to the groove surface 403 but lower than the groove surface.

As shown in fig. 5, 3 and 4, when assembling, the first member 300 is opposite to the groove of the second member 400, and the male guide slope 131 is opposite to the female guide slope 231; then, along the direction of the bevel face, after the clamping protrusion is pushed into the accommodating cavity 140 from the open side and clamped into the clamping hole 132 and the clamping portion 130 from the clamping opening 133, the bevel face of the first member 300 is attached to and locked with the bevel face of the second member 400.

The connection of the two members includes both positioning and locking aspects.

The positioning means that the locking neck 221 of the male connecting member 200 is locked into the locking hole 132 of the female connecting member 100, and the male connecting member 200 is locked by using the structural feature that the minimum position of the locking opening 133 is smaller than the diameter of the locking hole 132, so as to prevent the two members from being easily separated.

The locking means that when the locking head 222 of the connecting protrusion 200 is pushed into the accommodating cavity 140 from the open side, the inner side end face of the locking head 222 overlaps the inner side end face 134 of the clamping portion by the dimension, and the bevel face of the first member 300 is fitted and locked with the bevel face of the second member 400.

The invisible connecting structure can be applied to various occasions with aesthetic requirements, is particularly suitable for the furniture industry, the two components are preferably plates, the materials of the two hardware fittings are not limited to hardware, and can also be engineering plastics and are manufactured by adopting an injection molding process. The two invisible connecting pieces are matched for use, so that the attractiveness of furniture can be greatly improved, the processing and the installation are convenient, and a wide application prospect is developed for the personalized development of industries such as furniture and the like.

The present invention is not limited to the above embodiments, and all improvements based on the concept, principle, structure and method of the present invention will fall within the protection scope of the present invention.

Claims

1. A45-degree invisible connecting concave part comprises:

a female body; it is characterized in that the preparation method is characterized in that,

the concave part body is provided with the open chamber that holds in first component fixed part, joint portion and one side, first component fixed part is provided with first component binding face, joint portion is provided with protruding piece direction inclined plane, protruding piece direction inclined plane with first component binding face becomes 45 degrees angles, the joint portion seted up the perpendicular to protruding piece direction inclined plane and with hold the communicating joint hole in chamber, the joint hole is in hold the uncovered side in chamber and seted up the card entry.

2. The 45-degree invisible connecting concave part as claimed in claim 1, wherein the card inlet is in a bell mouth shape with a large outside and a small inside, and the minimum position of the card inlet is smaller than the diameter of the card hole.

3. The 45-degree invisible connecting concave part according to claim 2, wherein the clamping portion is plate-shaped, a supporting wall is arranged between the periphery of the clamping portion and the first component fixing portion, and the supporting wall encloses the accommodating cavity with one side open.

4. The 45-degree invisible connecting concave part as claimed in claim 3, wherein the inner side end face of the clamping part is parallel to the guiding inclined face of the convex part along the thickness direction.

5. The 45-degree invisible connecting concave piece according to claim 1, wherein the first component fixing part extends out of the open side of the accommodating cavity, and a fastener mounting hole perpendicular to the first component abutting surface is formed in the extending part.

6. A45-degree invisible connecting convex part comprises:

a male body; it is characterized in that the preparation method is characterized in that,

the convex part body is provided with a concave part guiding inclined plane and a second component binding face, the concave part guiding inclined plane and the second component binding face form a 45-degree angle, the concave part guiding inclined plane is provided with a clamping protruding portion extending outwards, and the convex part body is provided with a fastener mounting hole perpendicular to the second component binding face.

7. The 45-degree invisible connecting convex part according to claim 6, wherein the clamping convex part comprises a locking head part and a clamping neck part, and the clamping neck part and the concave part guide inclined plane are integrated.

8. The 45 degree invisible connecting male member as claimed in claim 7, wherein the inner side end face of said locking head is parallel to said female member guide slope.

9. The 45 degree invisible connecting male member as claimed in claim 7, wherein the outer end face of said locking head is parallel to said female member guide slope.

10. The 45 degree invisible connecting convex member as claimed in claim 7, wherein the locking head and the clamping neck are cylindrical.