CN219101802U

CN219101802U - Connecting piece, connecting assembly and connecting system

Info

Publication number: CN219101802U
Application number: CN202223110531.5U
Authority: CN
Inventors: 林晓群; 林晓欢; 苏伟生; 郭玉武
Original assignee: Guangzhou Jingnuo Technology Development Co ltd
Current assignee: Guangzhou Jingnuo Technology Development Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-05-30
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses a connecting piece, a connecting assembly and a connecting system, wherein the connecting piece is a plastic piece; the connecting piece comprises a connecting piece main body, wherein a connecting channel extending along the axial direction of the connecting piece main body is formed at one end part of the connecting piece main body; at least one fastening inverted tooth is formed on the left and right outer sides of the connecting piece main body respectively, a preset plane and a guide surface are formed between the end part of one end of the fastening inverted tooth, which is far away from the connecting piece main body, and the outer side wall of the connecting piece main body, and the preset plane and the guide surface are sequentially arranged along the direction from one end of the connecting piece main body, which is provided with a connecting channel opening, to the other end; wherein, preset the central axis mutually perpendicular of plane and connecting piece main part, preset the plane and be configured as: when the operating tool drives the link to rotate about the central axis of the link body, the link cannot move in the axial direction of the link body.

Description

Connecting piece, connecting assembly and connecting system

Technical Field

The utility model relates to a connecting piece which is used for a two-in-one, three-in-one or four-in-one furniture hardware connecting piece; the utility model also relates to a connection assembly and a connection system for connecting a first component and a second component, in particular for connecting furniture panels.

Background

At present, along with the continuous improvement of aesthetic ideas of people, invisible connection is gradually realized by adopting invisible connecting pieces between two furniture plates, so that the aesthetic property of furniture is improved, wherein the two-in-one or three-in-one or four-in-one connecting pieces are widely applied to the connection between the two furniture plates. However, the diameter of the opening of the plate for installing the eccentric wheel is larger (usually 7mm or more is required) when the existing two-in-one or three-in-one connecting piece is used, or the diameter of the opening of the plate for installing the pin is larger when the existing four-in-one connecting piece is used, a user can easily observe the eccentric wheel or the pin through a larger aperture, so that the stealth of the two-in-one or three-in-one or four-in-one connecting piece is lower, and the attractiveness of furniture is influenced.

For this reason, chinese patent publication No. CN213954095 discloses a "connecting piece", in which a first nut and at least a part of a screw member are fixed inside a first plate, at least a part of the screw member and a second nut are located inside a second plate, and the screw member is engaged in the second nut through a spherical torsion member, so that the two plates are stably spliced. The spherical torsion member can be arranged in the second nut in advance and inserted into the second plate along with the second nut, so that the situation that the spherical torsion member is inserted into the plate through the opening in the plate is avoided, a tool (such as a screwdriver or an internal hexagonal wrench) passes through the opening in the plate to drive the spherical torsion member to rotate, the opening diameter in the plate is greatly reduced, and the attractiveness is improved.

Further, the outer side surface of the second nut of the connecting piece is spiral, and the second nut is screwed into the second plate in a rotating mode. However, since there is a certain positional error in the opening portion of the second plate material, after the second nut is mounted inside the second plate material, the central axis of the spherical torsion member located inside the second nut is easily out of alignment with the central axis of the opening portion of the second plate material, or the third recess portion of the spherical torsion member is not aligned with the opening portion of the second plate material, and it is necessary to rotate the second nut again to adjust the position of the spherical torsion member. However, in the process of rotating the second nut, the second nut can simultaneously carry out position adjustment along the circumferential direction and the axial direction, so that the spherical torsion part is simultaneously changed along the circumferential direction and the axial direction of the second nut, the central axis of the spherical torsion part and the central axis of the opening part of the second plate are difficult to ensure to be positioned in the same straight line, the adjustment difficulty is high, and the assembly efficiency is influenced.

Disclosure of Invention

In order to solve the technical problem that the second nut can move along the circumferential direction and the axial direction simultaneously in the position adjustment process in the prior art, the first aspect of the utility model provides a connecting piece, wherein the connecting piece is used for being matched with a connecting rod and an eccentric wheel to realize the connection of a first component and a second component, or is used for being matched with the connecting rod and a threaded fastener to realize the connection of the first component and the second component, one side of the first component is provided with a mounting channel with a circular cross section, and the connecting piece is a plastic piece;

The connecting piece comprises a connecting piece main body, wherein the outer contour of the cross section of the connecting piece main body is matched with the cross section of the mounting channel, a connecting channel extending along the axial direction of the connecting piece main body is formed at one end part of the connecting piece main body, a mounting hole communicated with the connecting channel is formed on the outer side of the top of the connecting piece main body and used for mounting the eccentric wheel or the threaded fastener, the cross section of the connecting channel comprises an operation cross section, and the part of the connecting channel with the operation cross section is used for being matched with an operation tool to drive the connecting piece to rotate along the central axis of the connecting piece main body;

at least one fastening inverted tooth is formed on the left and right outer sides of the connecting piece main body respectively, a preset plane and a guide surface are formed between the end part of one end of the fastening inverted tooth, which is far away from the connecting piece main body, and the outer side wall of the connecting piece main body, and the preset plane and the guide surface are sequentially arranged along the direction from one end of the connecting piece main body, which is provided with a connecting channel opening, to the other end;

wherein the preset plane is perpendicular to the central axis of the connector body, and the preset plane is configured to: the connector is not movable in the axial direction of the connector body when the operating tool drives the connector to rotate about the central axis of the connector body. Based on this technical scheme, when operation instrument drive connecting piece rotated, because preset plane and the central axis mutually perpendicular of connecting piece main part for the connecting piece only takes place to remove along the circumference of connecting piece main part, and can not take place the displacement along the axial of connecting piece main part, ensures that the connecting piece takes place to remove only along a direction in the adjustment process, so that the central axis of mounting hole and the central axis of the connecting hole of first component adjust to on the same straight line.

In some embodiments, a plurality of the fastening back teeth are formed on the left and right outer sides of the connector body, respectively;

the fastening back teeth are arranged on the left side or the right side of the connecting piece main body at intervals in sequence along the axial direction of the connecting piece main body, or the fastening back teeth are arranged on the left side or the right side of the connecting piece main body at intervals in a sporadic mode.

In some embodiments, a plurality of the fastening teeth are disposed proximate one end of the opening of the connecting channel.

In some embodiments, the guide surface is an arcuate surface or an inclined plane or a spherical surface.

In some embodiments, the diameter of the circumcircle formed by the fastening teeth on the left and right sides of the connector body is 9-15mm.

In some embodiments, the shape of the operative cross section is polygonal or quincuncial or petal or multi-angular star.

In some embodiments, the connector body has a relief recess formed on a top exterior side thereof and/or a relief recess formed on a bottom exterior side thereof;

the relief recess is disposed proximate to the opening of the connecting channel. Based on the technical scheme of the embodiment, the position of avoiding the concave part corresponds to the position of the embedded groove of the first component, which is used for embedding the lamp strip or the electric wire, so that the damage or the exposure of the part, with the embedded groove, of the first component, caused by one end of the connecting piece, which is close to the opening of the connecting channel, is avoided.

In some embodiments, an end of the connector body facing away from the opening of the connection channel is formed with an annular chamfer. According to the technical scheme of the embodiment, the annular chamfer portion ensures that a certain space is reserved between the end part of the opening of the connecting piece main body, which is far away from the connecting channel, and the bottom of the mounting channel, and the space is used for containing chips generated when the drill bit processes the mounting channel on the first plate, or the space is used for ensuring that the end part of the mounting channel is incompletely processed due to the abrasion of the drill bit, ensuring that the connecting piece can be completely contained in the mounting channel, and avoiding that the connecting piece part protrudes out of the first component to form a gap at the position where the first component is connected with the second component.

In some embodiments, the connector body has a locating recess formed on an outer side thereof. Based on the technical scheme of the embodiment, the positioning concave part provides a clamping position, and the automatic assembly machine is used for positioning the connecting piece on the automatic assembly machine through the clamping positioning concave part, so that the connecting piece is prevented from rotating or moving when the eccentric wheel is pressed to be installed in the installation hole or the threaded fastener is installed in the installation hole, and the assembly efficiency of the eccentric wheel or the threaded fastener on the connecting piece is ensured.

Furthermore, a second aspect of the utility model provides a coupling assembly for coupling a first member to a second member, the coupling assembly comprising an eccentric and a coupling member according to the first aspect of the utility model as described above, the eccentric being rotatably mounted in the mounting hole.

In some embodiments, further comprising a connecting rod;

one end of the connecting rod protrudes to form a connecting boss, and the other end of the connecting rod is provided with a mounting part;

the eccentric wheel is provided with an eccentric groove, and at least one inner side wall of the eccentric groove is provided with a clamping arm; the eccentric wheel can rotate in the rotation direction between a release position and a locking position;

when the eccentric wheel is positioned at the release position, the connecting boss penetrates through the connecting channel and is inserted into the eccentric groove; when the eccentric wheel is in the locking position, the clamping arm limits the connection boss to be pulled out of the eccentric groove.

In some embodiments, the connecting rod is provided with an operating portion between the connecting boss and the mounting portion, the cross section of the operating portion being adapted to the cross section of the socket wrench so that the operating portion can be driven by the socket wrench to mount the mounting portion on the second member.

In addition, a third aspect of the utility model provides a connection system comprising a first member and a connection assembly as described above in relation to the second aspect of the utility model;

a mounting channel with a round cross section is formed on one side of the first component, and a connecting hole communicated with the mounting channel is formed at the top or bottom of the first component; the connecting piece main body is inserted into the mounting channel, and the mounting hole corresponds to the connecting hole in position and is communicated with the connecting hole, so that the eccentric wheel is communicated with the connecting hole.

the avoidance concave part is arranged close to the opening of the connecting channel;

the first member is formed with an insertion groove facing the recess.

Further, a fourth aspect of the present utility model provides a connection assembly for connecting a first member and a second member, the connection assembly comprising a connecting rod, a threaded fastener and a connector as described above in relation to the first aspect of the present utility model;

a connecting groove is formed at one end of the connecting rod, and a mounting part is arranged at the other end of the connecting rod; an internal thread structure which is matched and connected with the threaded fastener is formed on the inner side wall of the mounting hole;

Wherein the threaded fastener is threadably coupled within the mounting hole, the threaded fastener moving between a release position and a locking position;

when the threaded fastener is in the release position, the connecting groove is inserted into the mounting hole through the connecting channel; when the threaded fastener is in the locked position, a portion of the threaded fastener is inserted into the connection recess.

Further, a fifth aspect of the present utility model provides a connection assembly for connecting a first member and a second member, the connection assembly comprising a connecting rod, a threaded fastener, a metal block and a connector as described above in relation to the first aspect of the present utility model;

a connecting groove is formed at one end of the connecting rod, and a mounting part is arranged at the other end of the connecting rod; the metal block is provided with a threaded hole structure which is in fit connection with the threaded fastener;

the metal block is arranged in the mounting hole or at the opening of the mounting hole, the threaded fastener is in threaded connection with the threaded hole of the metal block in a matched mode, so that the threaded fastener is arranged in the mounting hole, and the threaded fastener moves between a release position and a locking position;

Further, a sixth aspect of the present utility model provides a connection assembly for connecting a first member and a second member, the connection assembly comprising a connecting rod, a threaded fastener, a pin and a connector as described above in relation to the first aspect of the present utility model;

a connecting groove is formed at one end of the connecting rod, and a mounting part is arranged at the other end of the connecting rod;

the outer side wall of the pin piece is provided with a plugging channel, one end of the pin piece is provided with a threaded hole communicated with the plugging channel, the pin piece is plugged in the mounting hole and enables the plugging channel to be communicated with the connecting channel, and the threaded fastener is in threaded connection with the threaded hole; the threaded fastener moves between a release position and a locking position;

Based on the technical scheme, the connecting piece, the connecting component and the connecting system have the beneficial effects that compared with the prior art:

the connecting piece is inserted into the mounting channel of the first component in a sliding mode, and the connecting piece is difficult to pull out from the mounting channel due to the pretightening force generated by fastening the inverted teeth on the left side and the right side of the connecting piece main body, so that the connecting piece is fastened in the first component; when the central axis of the mounting hole and the central axis of the connecting hole of the first component are not on the same straight line, an operation tool is adopted to insert the part with the operation section of the connecting channel so as to drive the connecting piece to rotate along the circumferential direction of the connecting piece main body by a certain angle, or the tool is adopted to push the connecting piece to move along the axial direction of the connecting piece main body by a certain distance.

Drawings

FIG. 1 is a first perspective view of a connector according to an embodiment of the present utility model;

FIG. 2 is a schematic perspective view of the connector of FIG. 1, partially in section;

FIG. 3 is a schematic perspective view of the connector of FIG. 1 in another partial cross-section;

FIG. 4 is a front view of the connector of FIG. 1;

FIG. 5 is a half cross-sectional view of the connector of FIG. 1;

FIG. 6 is a schematic illustration of an eccentric of an embodiment of the present utility model mounted to the connector of FIG. 1;

FIG. 7 is a second perspective view of a connector according to an embodiment of the present utility model;

FIG. 8 is a schematic view of an eccentric of an embodiment of the present utility model mounted to the connector of FIG. 7;

FIG. 9 is a third perspective view of a connector according to an embodiment of the present utility model;

FIG. 10 is a fourth perspective view of a connector according to an embodiment of the present utility model;

FIG. 11 is a side view of the connector of FIG. 10;

FIG. 12 is a fifth perspective view of a connector according to an embodiment of the present utility model;

FIG. 13 is a sixth perspective view of a connector according to an embodiment of the present utility model;

FIG. 14 is a seventh perspective view of a connector according to an embodiment of the present utility model;

FIG. 15 is a side view of the connector of FIG. 14;

FIG. 16 is an eighth perspective view of a connector according to an embodiment of the present utility model;

FIG. 17 is a ninth perspective view of a connector according to an embodiment of the present utility model;

FIG. 18 is a schematic perspective view of an eccentric in accordance with an embodiment of the present utility model;

FIG. 19 is a schematic perspective view of a connecting rod according to an embodiment of the utility model;

FIG. 20 is a schematic view of the first member, second member, connecting rod, eccentric and connector of FIG. 1 in an exploded view of an embodiment of the present utility model;

FIG. 21 is a tenth perspective view of a connector according to an embodiment of the present utility model;

FIG. 22 is a half cross-sectional view of the connector of FIG. 21;

FIG. 23 is a schematic exploded view of the first member, second member, connecting rod, threaded fastener and connector of FIG. 21 according to an embodiment of the present utility model;

FIG. 24 is an eleventh perspective view of a connector according to an embodiment of the present utility model;

FIG. 25 is a half cross-sectional view of the connector of FIG. 24;

FIG. 26 is a schematic view of the first member, second member, connecting rod, sheet metal, threaded fastener and connector of FIG. 24 in an exploded view of an embodiment of the present utility model;

FIG. 27 is a twelfth perspective view of a connector according to an embodiment of the present utility model;

FIG. 28 is a half cross-sectional view of the connector of FIG. 27;

FIG. 29 is a schematic view showing the first member, second member, connecting rod, metal sheet, threaded fastener and connector of FIG. 27 in an exploded view of an embodiment of the present utility model;

FIG. 30 is a thirteenth perspective view of a connector according to an embodiment of the present utility model;

FIG. 31 is a half cross-sectional view of the connector of FIG. 30;

FIG. 32 is a schematic view of the first member, second member, connecting rod, threaded fastener, pin member and connector of FIG. 30 in an exploded view of an embodiment of the present utility model;

FIG. 33 is another perspective view of a connecting rod according to an embodiment of the present utility model;

FIG. 34 is a schematic perspective view of a sheet metal of an embodiment of the present utility model;

FIG. 35 is a schematic perspective view of a pin member of an embodiment of the present utility model;

FIG. 36 is a first schematic view of a connection system of a first member, eccentric and connection of FIG. 1 in accordance with an embodiment of the present utility model;

FIG. 37 is a second schematic view of a connection system of the first member, eccentric and connection of FIG. 1 in accordance with an embodiment of the present utility model;

FIG. 38 is a third schematic view of a connection system of the first member, eccentric and connection of FIG. 1 in accordance with an embodiment of the present utility model;

FIG. 39 is a schematic perspective view of a connector of an embodiment of the present utility model secured to an automated assembly machine;

FIG. 40 is an enlarged view of portion A of FIG. 39;

FIG. 41 is a first exploded view of the connector and the operating tool of the present utility model;

FIG. 42 is a schematic view of a connecting channel of the connecting member of FIG. 41 with the operating tool inserted;

FIG. 43 is a second exploded view of the connector and the operating tool according to the embodiment of the present utility model;

FIG. 44 is a third exploded view of a connector and an operative tool according to an embodiment of the present utility model;

FIG. 45 is a fourth exploded view of a connector and an operating tool according to an embodiment of the present utility model;

FIG. 46 is a fifth exploded view of a connector and an operating tool according to an embodiment of the present utility model.

In the drawing the view of the figure,

1. a connecting piece; 11. a connection channel; 12. a mounting hole; 13. fastening the inverted tooth; 131. presetting a plane; 132. a guide surface; 14. an operating section; 15. a central axis of the connector body; 16. avoiding the concave part; 17. an annular chamfer portion; 18. a positioning concave part;

2. an operating tool;

3. an eccentric wheel; 31. an eccentric groove; 32. a clamping arm;

4. a connecting rod; 41. a connecting boss; 42. a mounting part; 43. an operation unit; 44. a connection groove;

5. a threaded fastener;

6. a metal block; 61. a threaded hole;

7. a pin member; 71. a plugging channel; 72. a threaded hole;

10. a first member; 101. a mounting channel; 102. a connection hole; 103. an embedding groove;

20. A second member;

30. an automatic assembly machine.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the present utility model, one of the two furniture plates connected to each other is set as a first member, the other is set as a second member, and the first member and the second member may be the same or different in shape or material, for example, plate-like body, block-like body, column-like body, etc., and the material may be wood, plastic, metal, polymer composite material, etc. or a combination thereof, and is not limited herein.

As shown in fig. 1-46, the present utility model provides a connector 1, wherein the connector 1 is used to cooperate with a connecting rod 4 and an eccentric 3 to connect a first member 10 with a second member 20, or wherein the connector 1 is used to cooperate with the connecting rod 4 and a threaded fastener 5 to connect the first member 10 with the second member 20. One side of the first member 10 is formed with a mounting channel 101 having a circular cross section, the mounting channel 101 may be formed by processing the side of the first member 10 at one time through a drilling process, and the processing is simple, fast and efficient, and the mounting channel 101 is specifically a cylindrical structure. The connecting piece 1 is a plastic piece, for example produced by an injection moulding process. The connector 1 comprises a connector body, the outer contour of the cross section of the connector body is matched with the cross section of the mounting channel 101, and the connector body can be a cylinder, a truncated cone or a cylinder-like structure, wherein the cylinder-like structure can be that the outer contour of the cross section of the connector body is elliptic, quincuncial or multi-pointed star. A connecting channel 11 extending along the axial direction of the connecting member body is formed at one end of the connecting member body, a mounting hole 12 communicated with the connecting channel 11 is formed on the outer side of the top of the connecting member body, the mounting hole 12 is used for mounting the eccentric wheel 3 or the threaded fastener 5, the cross section of the connecting channel 11 comprises an operation section 14, and the part of the connecting channel 11 with the operation section 14 is used for being matched with the operation tool 2 to drive the connecting member 1 to rotate along the central axis 15 of the connecting member body; at least one fastening inverted tooth 13 is respectively formed on the left and right outer sides of the connecting piece main body, a preset plane 131 and a guide surface 132 are formed between the end part of one end of the fastening inverted tooth 13, which is far away from the connecting piece main body, and the outer side wall of the connecting piece main body, and the preset plane 131 and the guide surface 132 are sequentially arranged along the direction from one end of the connecting piece main body, which is provided with an opening of the connecting channel 11, to the other end; wherein, the preset plane 131 is perpendicular to the central axis 15 of the connector body, and the preset plane 131 is configured to: when the operating tool 2 drives the coupling 1 to rotate about the central axis 15 of the coupling body, the coupling 1 cannot move in the axial direction of the coupling body.

The connecting rod 4 and the eccentric wheel 3 in the embodiment of the utility model may be a connecting rod 4 and an eccentric wheel 3 of an existing two-in-one or three-in-one connecting piece, or may be a first connecting piece and a second connecting piece in a first connecting piece, a connecting component and a connecting system disclosed in CN114321115 a. The connecting rod 4 and the threaded fastener 5 of the embodiment of the utility model can be the connecting rod 4 and the threaded fastener 5 of the existing four-in-one connecting piece, and can also be the first connecting piece and the threaded fastener 5 in a connecting component, a connecting system and an installation method disclosed in China patent publication No. CN 114278653A. The eccentric wheel 3 or the threaded fastener 5 of the embodiment of the utility model is preloaded in the mounting hole 12 of the connecting piece 1, the eccentric wheel 3 and the connecting piece 1 or the threaded fastener 5 and the connecting piece 1 are mounted inside the first member 10 from one side of the first member 10, and tools such as screwdrivers are adopted to penetrate through the top or the bottom of the first member 10 so as to control the working state of the eccentric wheel 3 or the threaded fastener 5, thereby connecting the first member 10 and the second member 20 with each other or separating the first member from the second member. Since the eccentric 3 or the threaded fastener 5 does not need to be mounted to the inside of the first member 10 from the top or the bottom of the first member 10, the diameter of the opening in the first member 10 only needs to be penetrated by a tool such as a screwdriver, and the invisibility of the eccentric 3 or the threaded fastener 5 (or the pin 7) on the first member 10 is greatly improved.

Further, the diameter of the mounting hole 12 according to the embodiment of the present utility model is designed according to the fit of the diameter of the eccentric 3 or the threaded fastener 5 (or the pin 7), for example, as shown in fig. 1 to 18, when the mounting hole 12 is used for mounting the eccentric 3, the diameter of the mounting hole 12 is slightly larger than the diameter of the eccentric 3, so that the eccentric 3 can rotate in the mounting hole 12; as shown in fig. 21 to 32, when the mounting hole 12 is used for mounting the threaded fastener 5, the diameter dimension of the mounting hole 12 is the same as the diameter dimension of the threaded fastener 5 so that the threaded fastener 5 can be threadedly disposed in the mounting hole 12.

As shown in fig. 20, 23, 26, 29, 32, and 36-38, in order to install the eccentric wheel 3 or the threaded fastener 5 in the first member 10 through the connector 1 according to the embodiment of the present utility model, an installation channel 101 needs to be first formed on a side of the first member 10 connected to the second member 20, specifically, a drilling process (such as a six-sided drill or the like) is adopted to machine a side wall of the first member 10, and the cross-sectional shape of the installation channel 101 may be the same as the cross-sectional shape of the connector body (i.e., the cross-sectional shape of the installation channel 101 is circular), or may be similar to or adapted to the cross-sectional shape of the connector body (for example, the cross-section of the installation channel 101 is elliptical or oval or is formed by splicing multiple sections of curves). Further, the mounting channel 101 is preferably a cylindrical slot, so that in order to fasten the connector 1 in the mounting channel 101 through the fastening teeth 13, the diameter of the outer circumference of the fastening teeth 13 is larger than the diameter of the mounting channel 101, so that during the process of inserting the connector 1 into the mounting channel 101, the inner side wall of the mounting channel 101 abuts against the fastening teeth 13 to elastically deform the fastening teeth 13, and deformation tension is generated, so that sliding friction force of the connector 1 in the mounting channel 101 is increased, and the connector 1 is firmly fixed in the first member 10. In addition, a connecting hole 102 communicating with the mounting channel 101 is formed on the top or bottom of the first member 10 by drilling (the hole diameter of the connecting hole 102 is only needed to be penetrated by tools such as a screwdriver or a wrench), after the connecting piece 1 is inserted into the mounting channel 101, the position of the mounting hole 12 corresponds to the position of the connecting hole 102 and is communicated with the position of the connecting hole, and the eccentric wheel 3 or the threaded fastener 5 is driven to rotate after penetrating through the connecting hole 102 by the tools such as the screwdriver.

Further, the left-right direction of the connector 1 of the present utility model is the left-right direction when the user faces the connector 1 after the connector 1 is inserted into the mounting passage 101 of the first member 10. In some specific application scenarios, as shown in fig. 20, 23, 26, 29, 32, and 36-38, the first member 10 is a laminate, the second member 20 is a side plate of the cabinet, the left-right direction is a length direction or a width direction of the laminate, and the up-down direction is a thickness direction of the laminate.

It will be further appreciated that the connecting piece 1 according to the embodiment of the present utility model is made of PP, PE, PET, PVC, POM, or other materials through an injection molding process, and the formed connecting piece 1 has a certain hardness, but the connecting piece 1 made of a hard plastic material can also have a certain elastic deformation capability, and when the portion of the connecting piece 1 having the fastening pawl 13 is inserted into the mounting channel 101, the fastening pawl 13 made of the plastic material and the inner side wall of the mounting channel 101 abut against each other and then elastically deform, so that the connecting piece 1 is fastened inside the first member 10, and is difficult to be pulled out from the mounting channel 101. After the connecting piece 1 is mounted to the mounting channel 101, when the central axis of the mounting hole 12 and the central axis of the connecting hole 102 of the first member 10 are not in the same straight line, the part with the operating section 14 of the connecting channel 11 is inserted by the operating tool 2 to drive the connecting piece 1 to rotate along the circumferential direction of the connecting piece body by a certain angle, or the connecting piece 1 is pushed to move along the axial direction of the connecting piece body by the tool to a certain distance, when the connecting piece 1 rotates in the mounting channel 101, the preset plane 131 is perpendicular to the central axis 15 of the connecting piece body, so that the connecting piece 1 is ensured to move only along the circumferential direction of the connecting piece body in the rotating process of the mounting channel 101, and the central axis of the mounting hole 12 and the central axis of the connecting hole 102 are ensured to be adjusted to be in the same straight line, so that the tool (such as a screwdriver or a spanner) can drive the eccentric wheel 3 or the threaded fastener 5 in the mounting hole 12 to rotate, the operation is simple and the efficiency is ensured, and the assembly efficiency is ensured.

Wherein, as shown in fig. 2-3, the preset plane 131 may not be a plane of the connector 1 as seen from the appearance, but a virtual inner plane, and the preset plane 131 is used to describe that the fastening back teeth 13 are different from the rotation spiral shape, or different from the rotation spiral shape segments or combinations, so as to functionally define the fastening back teeth 13.

Further, the cross-sectional shape of at least a portion of the operation tool 2 according to the embodiment of the present utility model is the same as or similar to the shape of the operation section 14, so as to ensure that the operation tool 2 can be smoothly inserted into the connection passage 11, and in general, the cross-sectional shape of the portion of the operation tool 2 inserted into the connection passage 11 is the same. The entire cross section of the connection passage 11 may be the same as the operation cross section 14, or a part of the cross section may be the same as the operation cross section 14 (the operation cross section 14 is preferably a portion near the opening of the connection passage 11), and the other part may be circular.

As shown in fig. 41 to 46, the operation tool 2 may be a standard tool commonly used in the prior art, such as an internal hexagonal wrench, a multi-angle star wrench, a petal wrench, a box wrench, or other cylindrical bodies with polygonal cross sections, and the shape of the operation section 14 is the same as or similar to the cross section of the operation tool 2. In some specific use scenarios, the seller or manufacturer only produces or sells the connector 1, while the operating section 14 of the connector 1 is adapted to standard tools, such as a hexagonal wrench or a multi-angle star wrench or a petal wrench or a box wrench or other cylindrical body with polygonal cross-section, etc., also falls within the scope of the present patent.

In some embodiments, the shape of the operative section 14 is polygonal or quincuncial or petal-shaped or multi-angular star-shaped. The polygonal shape includes triangle, quadrangle, pentagon, hexagon, etc., and correspondingly, the cross section of the operation tool 2 is also triangle, quadrangle, pentagon, hexagon, etc. When the operating section 14 is quincuncial or petal-shaped or polygonal star-shaped, the cross section of the operating tool 2 is quincuncial or petal-shaped or polygonal star-shaped as well.

The present utility model is not limited to the number of the fastening back teeth 13 located at the left side or the right side of the connector body, and the number of the fastening back teeth 13 located at the left and right sides of the connector body may be the same or different, for example, the number of the fastening back teeth 13 located at the left side is greater than the number of the fastening back teeth 13 located at the right side, or for example, the number of the fastening back teeth 13 located at the left side is equal to the number of the fastening back teeth 13 located at the right side. In some embodiments, as shown in fig. 1 to 9, 20 to 32, and 41 to 46, a plurality of fastening teeth 13 are formed on both left and right outer sides of the connector body, respectively, and the plurality of fastening teeth 13 located on the left or right side of the connector body are sequentially spaced apart in the axial direction of the connector body. The fastening teeth 13 of the present embodiment extend continuously along the circumferential direction of the connector body, so that the fastening teeth 13 are in a continuous arc-shaped elongated body, and thus the contact area between the fastening teeth 13 and the inner side wall of the mounting channel 101 is large, and the fastening effect of the connector 1 in the mounting channel 101 is improved. Meanwhile, when the operation tool 2 drives the connecting piece 1 to rotate in the mounting channel 101, the stress track between each continuous fastening inverted tooth 13 and the inner side wall of the mounting channel 101 is continuous and uniform, so that the stability of the rotation of the connecting piece 1 in the mounting channel 101 is improved. Further, the number of the fastening teeth 13 located at the left side of the connector body is the same as the number of the fastening teeth 13 located at the right side of the connector body, and the positions of the fastening teeth 13 located at the left side of the connector body are respectively in one-to-one correspondence with the positions of the fastening teeth 13 located at the right side of the connector body, so that the operation tool 2 is more stable when driving the connector 1 to rotate clockwise and counterclockwise.

In still other embodiments, as shown in fig. 10 to 17, a plurality of fastening back teeth 13 are formed on both left and right outer sides of the connector body, respectively, and the plurality of fastening back teeth 13 located on the left or right side of the connector body are arranged at a sporadic interval. Specifically, the fastening back teeth 13 are in the form of bumps or bumps, etc., and the plurality of fastening back teeth 13 located at the left side or the right side of the connector body may be regularly distributed, for example, a part of the fastening back teeth 13 are distributed at intervals along the circumferential direction of the connector body while a part of the fastening back teeth 13 are distributed at intervals along the axial direction of the connector body, for example, in the form of a matrix; or the plurality of fastening back teeth 13 on the left or right side of the connector body may be irregularly distributed so that the plurality of fastening back teeth 13 are distributed on the left or right side of the connector body. The plurality of fastening inverted teeth 13 are arranged at intervals in a sporadic manner, so that the fastening force of the connecting piece 1 in the mounting channel 101 is unevenly distributed or distributed at multiple points, which is beneficial to improving the fastening effect of the connecting piece 1 in the mounting channel 101.

In some embodiments, a plurality of fastening teeth 13 are provided near one end of the opening of the connection channel 11. In the process of sliding and inserting the connecting piece 1 into the mounting channel 101, the contact stroke between the fastening inverted tooth 13 and the inner side wall of the mounting channel 101 is short, so that the assembly resistance of the connecting piece 1 inserted into the mounting channel 101 is reduced, the mounting of the connecting piece 1 on the first component 10 is labor-saving and easy, and the mounting efficiency is improved.

Further, the guiding surface 132 is an arc surface or an inclined plane or a spherical surface, for example, as shown in fig. 4, the guiding surface 132 is an arc surface; as shown in fig. 11, for example, the guiding surface 132 is an inclined plane, the included angle formed between the guiding surface 132 and the preset plane 131 is an acute angle, and the fastening back teeth 13 are in an inclined triangle shape; as another example, as shown in fig. 15, the guide surface 132 is a spherical surface, and the fastener element 13 is a hemispherical or spheroid shape. Since the connector 1 is inserted into the mounting channel 101 along the direction from one end of the connector body having the opening of the connecting channel 11 to the other end, the contact surface area between the connector 1 and the inner side wall of the mounting channel 101 during the insertion process is reduced by the guide surface 132, thereby reducing the friction force of the movement of the connector 1 and improving the smoothness and convenience of the insertion of the connector 1 into the mounting channel 101.

In some embodiments, when the first member 10 is a laminate of a cabinet body, the thickness dimension of the first member 10 is small (typically, the thickness is 16mm or less), in order to avoid damage to the first member 10 during transportation or use, the top or bottom portion of the first member 10 should have a sufficient thickness, and for this reason, the diameter dimension of the circumscribing circle formed by the fastening teeth 13 located at the left and right sides of the connector body is 9-15mm, for example, 9mm, 10mm, 10.5mm, 12mm, 15mm, etc., and the diameter dimension of the circular mounting channel 101 is 9-15mm, thereby ensuring that the thickness of the first member 10 at the top and bottom of the mounting channel 101 is greater than 0.5mm, effectively ensuring the structural strength and stability of the first member 10, and also avoiding damage to the first member 10 during insertion of the connector 1 into the mounting channel 101.

In some embodiments, as shown in fig. 36, when an electric appliance is installed at the top or bottom of the first member 10, it is generally necessary to process an insert groove 103 at an edge position or a middle position of the top or bottom of the first member 10, the insert groove 103 being used to pre-insert a lamp strip or to allow an electric wire (the electric wire may be a connection lamp strip or an electric appliance) disposed in the insert groove 103 to achieve an aesthetic effect. However, when the insert groove 103 is formed at the top or bottom of the first member 10 having a relatively thin thickness, the insert groove 103 may further reduce the thickness of the edge of the first member 10, resulting in damage to the portion of the first member 10 having the insert groove 103 or exposure of the connector 1 due to the open end of the connector 1 near the connection passage 11 after the connector 1 is inserted into the installation passage 101 of the first member 10, thereby reducing the aesthetic appearance. Alternatively, when the fitting groove 103 is machined after the connector 1 is inserted into the first member 10, damage may be caused to the end of the connector 1 adjacent to the opening of the connection passage 11. For this purpose, as shown in fig. 1 to 17, 21, 22, 24, 25, 27, 28, 30 and 31, the relief recess 16 is formed on the top outer side and/or the bottom outer side of the connector body, the relief recess 16 is disposed near the opening of the connection channel 11, the depth of the relief recess 16 may be designed according to the groove depth adaptation of the fitting groove 103, for example, the depth of the relief recess 16 is 0.1 to 1.5mm, the width of the relief recess 16 is the same as or close to the groove width of the fitting groove 103, for example, the width of the relief recess 16 is 0.1 to 3.0mm, so that the position of the relief recess 16 just moves to the position of the fitting groove 103 after the connector 1 is inserted into the installation channel 101. Wherein, the top of the connector body may be formed with the relief recess 16, or the bottom of the connector body may be formed with the relief recess 16, or the top and bottom of the connector body are respectively formed with the relief recess 16, specifically adaptively arranged according to the position of the fitting groove 103 on the first member 10. The relief recess 16 is located at one end of the connector body such that the end of the connector body is notched. When the first member 10 and the second member 20 are connected, the lamp strip or the electric wire is inserted into the insertion groove 103, and a part of the lamp strip or the electric wire passes through the escape recess 16.

In other embodiments, the fitting groove 103 may be located on a side surface of the first member 10 having an opening of the connection channel 11, for example, as shown in fig. 38, a portion of the fitting groove 103 passes through the relief recess 16, and for example, as shown in fig. 37, a portion of the fitting groove 103 slides through the opening of the connection channel 11, so that a gap (i.e., the fitting groove 103) is formed at a position where the first member 10 and the second member 20 are connected after the first member 10 and the second member 20 are connected, so that the electric wire passes through the fitting groove 103, and a portion of the electric wire spans the relief recess 16, thereby providing a hidden and attractive effect.

In some embodiments, as shown in fig. 4, 5, 8, 11, 15, the end of the connector body facing away from the opening of the connection channel 11 is formed with an annular chamfer 17. On the one hand, the annular chamfer 17 reduces the contact area of the connecting piece 1 when being inserted into the connecting channel 11, plays a role in positioning and guiding, and meanwhile, the annular chamfer 17 reduces the sliding friction force between the connecting piece main body and the mounting channel 101, so that the smoothness of the connecting piece 1 inserted into the mounting channel 101 is improved. On the other hand, the annular chamfer portion 17 makes the end portion of the connecting piece body, which is away from the opening of the connecting channel 11, be conical or round table-shaped, and when the connecting piece 1 is inserted into the mounting channel 101, a certain space is reserved between the end portion of the connecting piece body, which is away from the opening of the connecting channel 11, and the bottom of the mounting channel 101, and is used for accommodating chips generated when a drill bit machines the mounting channel 101 on the first plate, or is used for incomplete end machining of the mounting channel 101 due to abrasion of the drill bit, so that the connecting piece 1 can be fully accommodated in the mounting channel 101, and a gap is formed at the position, where the first member 10 and the second member 20 are connected, due to the fact that the connecting piece 1 is partially protruded out of the first member 10, thereby improving the attractiveness of the connecting of the first member 10 and the second member 20.

In some embodiments, as shown in fig. 1, 5, 6, 7-17, 21-22, 24-25, 27-28, and 30-31, the connector body is formed with a locating recess 18 on the outside. The positioning concave 18 is used for providing a clamping position when the eccentric wheel 3 is mounted to the mounting hole 12 of the connecting piece 1 through the automatic assembly machine 30, the automatic assembly machine 30 clamps the positioning concave 18 to position the connecting piece 1 on the automatic assembly machine 30, the connecting piece 1 is prevented from rotating or moving when the eccentric wheel 3 is pressed to be mounted to the mounting hole 12 or the threaded fastener 5 is mounted to the mounting hole 12, and the assembly efficiency of the eccentric wheel 3 or the threaded fastener 5 on the connecting piece 1 is ensured. The automatic assembly machine 30 belongs to conventional automation equipment in the field, and the structure and the working principle of the automatic assembly machine 30 are omitted here. The utility model is not limited to the positioning recess 18 being located on the outside of the end of the connector body facing away from the opening of the connecting channel 11, as shown in fig. 1, 5, 6, 9-17, 21-22, 24-25, 27-28, 30-31, where the positioning recess 18 interferes with the position of the annular chamfer 17 so that the annular chamfer 17 is not a complete ring; as also shown in fig. 7 and 8, the positioning recess 18 is located on the outside of the central portion of the connector body.

Based on the structure of the connecting piece 1 according to the embodiment of the present utility model, as shown in fig. 6, 8 and 20, when the connecting piece 1 according to the embodiment of the present utility model is used in combination with a two-in-one or three-in-one connecting piece, the connecting piece 1 and the eccentric wheel 3 of the two-in-one or three-in-one connecting piece form a connecting assembly, and the eccentric wheel 3 is rotatably mounted in the mounting hole 12 of the connecting piece 1. The structure of the eccentric wheel 3 is not limited in the present utility model, for example, the eccentric wheel 3 may be a structure of the eccentric wheel 3 of a two-in-one or three-in-one connecting piece in the prior art, that is, as shown in fig. 18, the eccentric wheel 3 has an eccentric groove 31, and at least one inner sidewall of the eccentric groove 31 is provided with clamping arms 32 (the number of the clamping arms 32 is generally two, and the two clamping arms 32 are respectively disposed on opposite sides of the eccentric groove 31). Since the eccentric 3 is first installed in the installation hole 12 of the connector 1 and then inserted into the installation channel 101 of the first member 10, the eccentric 3 may be preloaded into the installation hole 12, or the eccentric 3 may be installed in the installation hole 12 only when in use, which is not limited herein. Preferably, in order to improve the convenience of use, the eccentric wheel 3 is usually preassembled in the mounting hole 12 through the automatic assembling machine 30 during sales, so that on one hand, the assembling efficiency is improved, on the other hand, the notch position of the eccentric groove 31 of the eccentric wheel 3 is ensured to be aligned with the connecting channel 11, so that the connecting rod 4 of the subsequent two-in-one or three-in-one connecting piece is conveniently inserted into the eccentric groove 31 of the eccentric wheel 3 after passing through the connecting channel 11, and the subsequent use efficiency is improved.

Further, when the connecting assembly formed by the connecting piece 1 and the eccentric wheel 3 in the embodiment of the present utility model is matched with the connecting rod 4 of the two-in-one or three-in-one connecting piece, as shown in fig. 19, one end of the connecting rod 4 protrudes to form a connecting boss 41, the other end of the connecting rod 4 is formed with a mounting portion 42, the mounting portion 42 is, for example, an external thread structure, and the connecting rod 4 is locked on the second member 20 through the mounting portion 42; the eccentric 3 can rotate in the direction of rotation between the release position and the locking position; when the eccentric wheel 3 is at the release position, the connecting boss 41 is inserted into the eccentric groove 31 through the connecting channel 11; when the eccentric 3 is in the locking position, the clamping arm 32 limits the extraction of the connection boss 41 from the eccentric slot 31.

The structure of the connecting rod 4 of the two-in-one or three-in-one connecting piece is not limited in the embodiment of the present utility model, for example, the connecting rod 4 may be the connecting rod 4 of the two-in-one or three-in-one connecting piece in the prior art, and may also be a first connecting piece, a connecting assembly and a connecting system disclosed in chinese patent publication No. CN114321115a, specifically, the connecting rod 4 is provided with an operating portion 43 between the connecting boss 41 and the mounting portion 42, and the cross section of the operating portion 43 is adapted to the cross section of the socket wrench, so that the operating portion 43 can be driven by the socket wrench, thereby mounting the mounting portion 42 on the second member 20. The sleeve spanner is arranged on the operating part 43 of the connecting rod 4, and the connecting rod 4 is directly driven to rotate so as to drive the mounting part 42 to be screwed into the second component 20, thereby improving the assembly efficiency and stability. The operation portion 43 may be a plastic body sleeved on the connecting rod 4, or may form an integrated structure with the connecting rod 4, which is not limited herein. Meanwhile, the working principle of the connecting rod 4 with the operation portion 43 is shown in the description of a first connecting piece, a connecting component and a connecting system disclosed in the chinese patent publication No. CN114321115a, and the detailed description is omitted herein.

Based on the structure of the connection assembly according to the embodiment of the present utility model, as shown in fig. 20 and fig. 36 to fig. 38, when the connection assembly is used in cooperation with the first member 10, the connection assembly and the first member 10 form a connection system, specifically: a mounting channel 101 with a circular cross section is formed on one side of the first member 10, and a connecting hole 102 communicated with the mounting channel 101 is formed at the top or bottom of the first member 10; the connector body is inserted into the mounting channel 101, and the mounting hole 12 corresponds to and communicates with the position of the connection hole 102 so that the eccentric 3 communicates with the connection hole 102. When the eccentric wheel 3 and the connecting piece 1 are inserted into the mounting channel 101 and have mounting errors or the positions of the mounting holes 12 deviate, so that the central axis of the eccentric wheel 3 and the central axis of the connecting hole 102 are not in the same straight line, the operating tool 2 is inserted into the part with the operating section 14 of the connecting channel 11, and after the connecting piece 1 is driven to rotate along the central axis 15 of the connecting piece main body and towards the corresponding direction by a certain angle, the central axis of the eccentric wheel 3 and the central axis of the connecting hole 102 are in the same straight line, so that tools such as a screwdriver or a spanner pass through the connecting hole 102 and then drive the eccentric wheel 3 to rotate, and further the connecting rod 4 and the eccentric wheel 3 are controlled to be locked or released mutually, and connection or separation between the first component 10 and the second component 20 is completed.

Based on the structure of the connecting piece 1 according to the embodiment of the present utility model, for example, as shown in fig. 21 to 23 and fig. 33, when the connecting piece 1 according to the present utility model is used in combination with the connecting rod 4 and the threaded fastener 5, the connecting piece 1, the connecting rod 4 and the threaded fastener 5 form a connecting assembly, specifically: a connecting groove 44 is formed at one end of the connecting rod 4, a mounting part 42 is arranged at the other end of the connecting rod 4, the mounting part 42 is in an external thread structure, for example, and the connecting rod 4 is locked on the second member 20 through the mounting part 42; a threaded hole structure which is matched and connected with the threaded fastener 5 is formed on the inner side wall of the mounting hole 12; wherein the threaded fastener 5 is threadedly coupled within the mounting hole 12, the threaded fastener 5 being movable between a release position and a locking position; when the threaded fastener 5 is in the release position, the connection groove 44 is inserted into the mounting hole 12 through the connection passage 11; when the threaded fastener 5 is in the locked position, a portion of the threaded fastener 5 is inserted into the connection groove 44. It will be appreciated that the threaded fastener 5 may be preloaded into the mounting hole 12 and inserted into the mounting channel 101 with the connector 1 to improve assembly efficiency. The structure and the working principle of the connecting rod 4 and the threaded fastener 5 of the connecting assembly of the present embodiment refer to the second connecting piece and the threaded fastener in "a connecting assembly, a connecting system and an installation method" disclosed in the chinese patent publication No. CN114278653a, respectively, and redundant description is omitted herein. When the installation error occurs after the threaded fastener 5 and the connecting piece 1 are inserted into the installation channel 101 or the position of the installation hole 12 deviates, so that the central axis of the threaded fastener 5 is not in the same straight line with the central axis of the connection hole 102, the operating tool 2 is inserted into the part with the operating section 14 of the connection channel 11, and after the connecting piece 1 is driven to rotate along the central axis 15 of the connecting piece main body and towards the corresponding direction by a certain angle, the central axis of the threaded fastener 5 is in the same straight line with the central axis of the connection hole 102, so that tools such as a screwdriver or a spanner pass through the connection hole 102 and then drive the threaded fastener 5 to rotate, and the connection or separation between the first component 10 and the second component 20 is completed.

Based on the structure of the connecting piece 1 according to the embodiment of the present utility model, for example, as shown in fig. 24-26, 33 and 34, when the connecting piece 1 according to the present utility model is used in combination with the connecting rod 4, the threaded fastener 5 and the metal block 6, the connecting piece 1, the connecting rod 4, the threaded fastener 5 and the metal block 6 form a connecting assembly, specifically: a connecting groove 44 is formed at one end of the connecting rod 4, a mounting part 42 is arranged at the other end of the connecting rod 4, the mounting part 42 is in an external thread structure, for example, and the connecting rod 4 is locked on the second member 20 through the mounting part 42; the metal block 6 is provided with an internal thread structure which is in matched connection with the threaded fastener 5; wherein the metal block 6 is arranged in the mounting hole 12 or at the opening of the mounting hole 12, the threaded fastener 5 is in matched threaded connection with the threaded hole 61 of the metal block 6 so that the threaded fastener 5 is arranged in the mounting hole 12, and the threaded fastener 5 moves between a release position and a locking position; when the threaded fastener 5 is in the release position, the connection groove 44 is inserted into the mounting hole 12 through the connection passage 11; when the threaded fastener 5 is in the locked position, a portion of the threaded fastener 5 is inserted into the connection groove 44. It will be appreciated that the threaded fastener 5 is indirectly threadedly connected to the metal block 6 within the mounting hole 12 so that the threaded fastener 5 may be inserted into the mounting channel 101 with the connector 1 to improve assembly efficiency. The structure and working principle of the connecting rod 4, the threaded fastener 5 and the metal block 6 of the connecting assembly of the present embodiment refer to the second connecting piece, the threaded fastener and the first metal block or the second metal block in "a connecting assembly, a connecting system and an installation method" disclosed in the chinese patent publication No. CN114278653a, respectively, and redundant description is omitted herein. When the installation error occurs after the threaded fastener 5, the metal block 6 and the connecting piece 1 are inserted into the installation channel 101 or the position of the installation hole 12 deviates, so that the central axis of the threaded fastener 5 is not in the same straight line with the central axis of the connection hole 102, the operating tool 2 is inserted into the part with the operating section 14 of the connection channel 11, and after the connecting piece 1 is driven to rotate along the central axis 15 of the connecting piece main body and towards the corresponding direction by a certain angle, the central axis of the threaded fastener 5 is in the same straight line with the central axis of the connection hole 102, so that tools such as a screwdriver or a spanner pass through the connection hole 102 and then drive the threaded fastener 5 to rotate, and the connection or separation between the first component 10 and the second component 20 is completed.

Based on the structure of the connecting piece 1 according to the embodiment of the present utility model, for example, as shown in fig. 30 to 33 and 35, when the connecting piece 1 according to the present utility model is used in combination with a four-in-one connecting piece, the connecting piece 1, the connecting rod 4, the threaded fastener 5 and the pin member 7 form a connecting assembly, specifically: a connecting groove 44 is formed at one end of the connecting rod 4, a mounting part 42 is arranged at the other end of the connecting rod 4, the mounting part 42 is in an external thread structure, for example, and the connecting rod 4 is locked on the second member 20 through the mounting part 42; the outer side wall of the pin member 7 is provided with a plugging channel 71, one end of the pin member 7 is provided with a threaded hole 72 communicated with the plugging channel 71, the pin member 7 is plugged into the mounting hole 12 and enables the plugging channel 71 to be communicated with the connecting channel 11, and the threaded fastener 5 is in threaded connection with the threaded hole 72; the threaded fastener 5 moves between a release position and a locking position; when the threaded fastener 5 is in the release position, the connection groove 44 is inserted into the mounting hole 12 through the connection passage 11; when the threaded fastener 5 is in the locked position, a portion of the threaded fastener 5 is inserted into the connection groove 44. It will be appreciated that the pin member 7 and the threaded fastener 5 may be inserted into the mounting channel 101 with the connector 1 to improve assembly efficiency. The structure and working principle of the connecting rod 4, the threaded fastener 5 and the pin member 7 of the connecting assembly of the present embodiment refer to the second connecting member, the threaded fastener and the third connecting member in "a connecting assembly, a connecting system and an installation method" disclosed in the chinese patent publication No. CN114278653a, and redundant description is omitted herein. When the installation error occurs after the threaded fastener 5, the pin member 7 and the connecting member 1 are inserted into the installation channel 101 or the position of the installation hole 12 deviates, so that the central axis of the threaded fastener 5 is not in the same straight line with the central axis of the connection hole 102, the operation tool 2 is inserted into the portion with the operation section 14 of the connection channel 11, and after the driving connecting member 1 rotates along the central axis 15 of the connecting member main body and in the corresponding direction by a certain angle, the central axis of the threaded fastener 5 is in the same straight line with the central axis of the connection hole 102, so that tools such as a screwdriver or a spanner pass through the connection hole 102 and then drive the threaded fastener 5 to rotate, and the connection or separation between the first member 10 and the second member 20 is completed.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. The connecting piece is used for being matched with the connecting rod and the eccentric wheel to realize the connection of the first component and the second component, or is used for being matched with the connecting rod and the threaded fastener to realize the connection of the first component and the second component, and one side of the first component is provided with a mounting channel with a circular cross section, and the connecting piece is characterized in that the connecting piece is a plastic piece;

wherein the preset plane is perpendicular to the central axis of the connector body, and the preset plane is configured to: the connector is not movable in the axial direction of the connector body when the operating tool drives the connector to rotate about the central axis of the connector body.

2. The connector of claim 1, wherein a plurality of said fastening teeth are formed on both left and right outer sides of said connector body, respectively;

3. The connector of claim 2, wherein a plurality of said fastener tabs are disposed adjacent one end of said connecting channel opening.

4. The connector of claim 1, wherein the guide surface is an arcuate surface or an inclined plane or a spherical surface.

5. The connector of any one of claims 1-4, wherein the diameter of the circumcircle formed by the fastening teeth on the left and right sides of the connector body is 9-15mm.

6. The connector of claim 1, wherein the operative cross-section is polygonal or quincuncial in shape.

7. The connector of claim 1, wherein the connector body has a relief recess formed on a top exterior side thereof and/or a relief recess formed on a bottom exterior side thereof;

The relief recess is disposed proximate to the opening of the connecting channel.

8. A connector according to claim 1, wherein an end of the connector body facing away from the opening of the connection channel is formed with an annular chamfer.

9. The connector of claim 1, wherein the connector body has a detent recess formed on an outer side thereof.

10. A connection assembly for connecting a first member to a second member, comprising an eccentric and a connector according to any one of claims 1 to 9, the eccentric being rotatably mounted in the mounting hole.

11. The connection assembly of claim 10, further comprising a connecting rod;

12. The connection assembly according to claim 11, wherein the connection rod is provided with an operating portion between the connection boss and the mounting portion, the cross section of the operating portion being adapted to the cross section of the socket wrench so that the operating portion can be driven by the socket wrench to mount the mounting portion on the second member.

13. A connection system comprising a first member and a connection assembly as claimed in any one of claims 10 to 12;

14. The connection system of claim 13, wherein a relief recess is formed on a top exterior side of the connector body and/or a relief recess is formed on a bottom exterior side of the connector body;

the first member is formed with an insertion groove facing the recess.

15. A connection assembly for connecting a first member to a second member, comprising a connecting rod, a threaded fastener and a connector according to any one of claims 1 to 9;

16. A connection assembly for connecting a first member to a second member, comprising a connecting rod, a threaded fastener, a metal block and a connector according to any one of claims 1 to 9;

17. A connection assembly for connecting a first member to a second member, comprising a connecting rod, a threaded fastener, a pin, and a connector according to any one of claims 1 to 9;