CN217462764U - Eccentric wheel and connecting assembly - Google Patents

Abstract

The utility model discloses an eccentric wheel and a connecting assembly, which are used for connecting a first component and a second component, wherein the eccentric wheel comprises a body, the bottom of the body is provided with an eccentric groove, the top of the body is provided with an operating hole, the circumferential side part of the body is provided with a socket communicated with the eccentric groove, the circumferential side part of the body is provided with a connecting port communicated with the eccentric groove and extending along the circumferential direction of the body, and one end of the connecting port is communicated with one side of the socket; wherein the minimum distance L between the top of the socket and the connecting port is less than or equal to 1.5 mm. According to the utility model discloses a neck that connecting groove of connecting rod should be guaranteed through the minimum distance between the top of design socket and the connector to the eccentric wheel and connector are aimed at each other to the purpose of location is played assembling to the in-process of eccentric wheel to the connecting rod, avoids carrying out the trouble of fixing a position to the eccentric wheel through the hole site on the plate among the prior art, has reduced the trompil degree of difficulty.

Description

Eccentric wheel and connecting assembly

Technical Field

The utility model relates to an eccentric wheel and coupling assembling for connect first component and second component, be used for connecting the furniture component very much.

Background

At present, along with the aesthetic concept of people is continuously improved, invisible connecting pieces are gradually adopted between two furniture plates or two metal components to realize invisible connection, so that the attractiveness of furniture or equipment is improved, and the invisible connecting pieces of the two-in-one connecting pieces or the three-in-one connecting piece are widely applied to connection between the two furniture plates. The existing two-in-one connecting piece mainly comprises a connecting rod and an eccentric wheel, and the top of the eccentric wheel is provided with a cross-shaped slotted hole which is used for driving the eccentric wheel to rotate so as to realize locking or loosening between the connecting rod and the eccentric wheel.

When plates with different thicknesses are used, in order to facilitate the mutual assembly of the connecting rod and the eccentric wheel, the side connecting port of the eccentric wheel is usually positioned in the thickness center of the plate after the eccentric wheel is assembled at the hole position of the plate. In order to realize the accurate location of eccentric wheel in the plate, the hole site of the different degree of depth of adaptation is come through the eccentric wheel of design co-altitude not now, so to the trompil required precision of plate higher, otherwise the connecting rod is difficult to assemble with the eccentric wheel. In addition, the eccentric wheel of current same specification is difficult to generally at the plate of different thickness, and assembly efficiency is lower, has increased use cost to a certain extent.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems that the existing two-in-one connecting piece or three-in-one connecting piece has higher hole opening precision on a plate and eccentric wheels of the same specification are difficult to be commonly used on plates with different thicknesses, the utility model provides an eccentric wheel, which comprises a body, wherein an eccentric groove is formed in the bottom of the body, an operation hole is formed in the top of the body, a socket is formed in the circumferential side part of the body, a connecting port which is communicated with the eccentric groove and extends along the circumferential direction of the body is formed in the circumferential side part of the body, and one end of the connecting port is communicated with one side of the socket;

wherein the minimum distance L between the top of the socket and the connecting port is less than or equal to 1.5 mm.

In some embodiments, the body has a tensile strength of 280N/mm or greater ² The metal member of (1).

In some embodiments, the body is a unitary piece made of iron or stainless or alloy steel.

In some embodiments, the eccentric is a unitary piece formed by a cold heading and stamping process.

In some embodiments, the top of the socket is located on the same horizontal plane as the bottom of the eccentric slot, and the minimum distance L further satisfies: l is more than or equal to 1.0 mm.

In some embodiments, the top of the socket is located below the bottom of the eccentric groove, a positioning part is formed on the body between the top of the socket and the bottom of the eccentric groove, and the height H of the positioning part along the vertical direction is greater than or equal to 0.5 mm.

In some embodiments, the top of the socket is in the shape of a circular arc with a high middle and two low sides.

In some embodiments, the bottom of the socket extends through the bottom of the body.

In some embodiments, the operation hole penetrates to the eccentric groove.

In some embodiments, the external diameter D of the eccentric wheel is set, wherein D is less than or equal to 7mm and less than or equal to 12 mm.

The utility model discloses the second aspect provides a coupling assembling, reach as above including the connecting rod the eccentric wheel, the one end of connecting rod is formed with connection boss and connecting groove, connection boss reaches connecting groove passes through the socket inserts in the eccentric groove, the neck that connecting groove corresponds is followed the socket slides in the connecting hole, the circumference lateral part restriction of body the connection boss is followed the connector is extracted.

Compared with the prior art, the utility model, eccentric wheel and coupling assembling, its beneficial effect lies in:

the connecting boss and the connecting groove of the connecting rod are inserted into the eccentric groove through the socket, when the eccentric wheel moves downwards and the top of the socket is abutted to the groove bottom of the connecting groove or the groove bottom of the eccentric groove is abutted to the connecting boss, at least one part of the neck corresponding to the connecting groove is just aligned to the connecting port, the eccentric wheel is rotated to enable the neck corresponding to the connecting groove to smoothly slide into the connecting port, and the connecting rod and the eccentric wheel are firmly connected through mutual clamping of the circumferential side part of the eccentric wheel and the connecting boss.

The utility model discloses a design the neck that connecting groove corresponds and connector mutual alignment are guaranteed to minimum distance between the top of socket and the connector to play the purpose of location to the connecting rod at the in-process of assembling to the eccentric wheel, so that the utility model discloses an eccentric wheel can be suitable for the hole site at the different degree of depth, avoids carrying out the trouble of fixing a position to the eccentric wheel through the hole site on the plate among the prior art, has reduced the trompil degree of difficulty. Simultaneously, the hole site of same degree of depth also can be seted up to the plate of different thickness is installed the utility model discloses an eccentric wheel has avoided among the prior art eccentric wheel highly according to the limitation of the thickness design of plate, has improved the commonality of the eccentric wheel of same specification on the plate of different thickness, and assembles more simply swiftly, is favorable to improving assembly efficiency.

Drawings

FIG. 1 is a schematic diagram of a two-in-one connector according to the prior art;

FIG. 2 is a cross-sectional view of a prior art first member and second member connected by a prior art two-in-one connector;

fig. 3 is a schematic structural view of a connecting assembly according to some embodiments of the present invention, in which the bottom of the eccentric groove abuts against the connecting boss;

fig. 4 is a schematic structural view of a coupling assembly according to some embodiments of the present invention, in which the circumferential side of the eccentric wheel and the coupling boss are clamped to each other;

fig. 5 is a first schematic view of an eccentric according to some embodiments of the present invention;

FIG. 6 is a front view of FIG. 5;

FIG. 7 is a cross-sectional view taken along A-A of FIG. 6;

FIG. 8 is a bottom view of FIG. 5;

fig. 9 is a second structural schematic view of the eccentric wheel according to some embodiments of the present invention;

FIG. 10 is a front view of FIG. 9;

FIG. 11 is a cross-sectional view taken along line B-B of FIG. 10;

fig. 12 is a third schematic view of an eccentric according to some embodiments of the present invention;

FIG. 13 is a front view of FIG. 12;

FIG. 14 is a cross-sectional view taken along line C-C of FIG. 13;

FIG. 15 is a bottom view of FIG. 12;

fig. 16 is a fourth structural view of the eccentric according to some embodiments of the present invention;

FIG. 17 is a front view of FIG. 16;

FIG. 18 is a cross-sectional view taken along line D-D of FIG. 17;

fig. 19 is a fifth structural schematic view of the eccentric wheel according to some embodiments of the present invention;

FIG. 20 is a front view of FIG. 19;

FIG. 21 is a cross-sectional view taken along E-E in FIG. 20;

FIG. 22 is a bottom view of FIG. 19;

fig. 23 is a sixth structural view of the eccentric according to some embodiments of the present invention;

fig. 24 is an exploded schematic view of a first member, a second member and a connection assembly according to some embodiments of the present invention;

fig. 25 is a schematic structural view of a first member and a second member of some embodiments of the present invention connected by a connecting assembly.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the prior art, as shown in fig. 1, the two-in-one connecting member and the three-in-one connecting member each include a connecting rod 2 'and an eccentric wheel 1', and a cross-shaped slot 11 'is formed in the top of the eccentric wheel 1', and the cross-shaped slot 11 'is used for driving the eccentric wheel 1' to rotate so as to lock or unlock the connecting rod 2 'and the eccentric wheel 1'. When the invisible furniture assembling mechanism is used, the connecting rod 2 'is installed on one furniture plate, the eccentric wheel 1' is installed on the other furniture plate, and the two furniture plates are locked or loosened with each other through the connecting rod 2 'and the eccentric wheel 1' to realize invisible assembling. The first member and the second member may be the same in shape or different in material, for example, the shape is a plate-shaped body, a block-shaped body, a column-shaped body, etc., and the material may be wood, plastic, metal, or a polymer composite material, etc., or a combination thereof, which is not limited herein. Specifically, as shown in fig. 2, one end of the connecting rod 2 ' is mounted on the first member 3 ', and the other end of the connecting rod 2 ' is inserted into the second member 4 ' and then assembled with the eccentric wheel 1 ', so that the first member 3 ' and the second member 4 ' are detachably connected with the eccentric wheel 1 ' through the connecting rod 2 '.

In order to increase the carrying capacity of the eccentric wheel 1 ', currently, part of the eccentric wheel 1 ' is made of a material with a relatively high tensile strength, such as iron or steel, so that the eccentric wheel 1 ' can only be made by processes of cold heading, punching, milling and the like. As shown in fig. 1-2, for the second member 4 ' with different thickness, in order to facilitate the assembly of the connecting rod 2 ' and the eccentric wheel 1 ' with each other, the side connecting port of the eccentric wheel 1 ' is usually located at the thickness center of the second member 4 ' after the eccentric wheel 1 ' is assembled at the hole of the second member 4 '. In order to achieve accurate positioning of the eccentric wheel 1 ' in the second component 4 ', the eccentric wheels 1 ' with different heights are designed to be adapted to hole sites with different depths (the height of the eccentric wheel 1 ' is the same as the depth of the hole sites), so that the requirement on the accuracy of the opening of the second component 4 ' is high, otherwise, the connecting rod 2 ' is difficult to assemble with the eccentric wheel 1 '. In addition, the eccentric wheel 1 'with the same specification is difficult to be commonly used for the second component 4' with different thicknesses, and the use cost is increased to a certain extent.

Therefore, the technical problems that after the two-in-one connecting piece or the three-in-one connecting piece in the prior art is adopted for connection, the opening precision of a second component is high, and eccentric wheels of the same specification are difficult to be used for the second components with different thicknesses are solved, as shown in fig. 3-23, the embodiment of the utility model discloses a connecting assembly, which comprises an eccentric wheel 1 and a connecting rod 2, wherein the eccentric wheel 1 comprises a body, the bottom of the body is provided with an eccentric groove 11, the top of the body is provided with an operating hole 12, the circumferential side of the body is provided with a socket 13 communicated with the eccentric groove 11, the circumferential side of the body is provided with a connecting port 14 communicated with the eccentric groove 11 and extending along the circumferential direction of the body, one end of the connecting port 14 is communicated with one side of the socket 13, and the minimum distance L between the top of the socket 13 and the connecting port 14 is less than or equal to 1.5 mm; one end of the connecting rod 2 is formed with a connecting boss 21 and a connecting groove 22.

In the process of assembling the connecting rod 2 and the eccentric wheel 1, as shown in fig. 3-4 and 24-25, one end of the connecting rod 2, which is far away from the connecting boss 21 and the connecting groove 22, is fastened on the first member 3, the side portion of the second member 4 is provided with a channel 41, the top portion of the second member 4 is provided with a mounting hole 42 communicated with the channel 41, then the connecting boss 21 and the connecting groove 22 of the connecting rod 2 are inserted into the mounting hole 42 through the channel 41, the eccentric wheel 1 is placed in the mounting hole 42 and acts on the operating hole 12 through a tool such as a screwdriver and the like to push the eccentric wheel 1 to slide downwards in the mounting hole 42, when the top portion of the socket 13 of the eccentric wheel 1 abuts against the groove bottom of the connecting groove 22 or the groove bottom of the eccentric groove 11 abuts against the connecting boss 21, at least one portion of the neck 23 corresponding to the connecting groove 22 is aligned with the connecting port 14, the eccentric wheel 1 is rotated to enable the neck 23 corresponding to smoothly slide into the connecting port 14, the first component 3 and the second component 4 are connected in a concealed manner to the eccentric 1 via the connecting rod 2 by the circumferential side of the eccentric 1 and the connecting projection 21 clamping each other to achieve a firm connection between the connecting rod 2 and the eccentric 1. The neck 23 is generally cylindrical or quasi-cylindrical.

Based on the above scheme, the utility model discloses a minimum distance between the top of design socket 13 and the connector 14 guarantees that the neck 23 that connecting groove 22 of connecting rod 2 corresponds and connector 14 aim at each other to play the purpose of location to connecting rod 2 at the in-process of assembling to eccentric wheel 1, so that the utility model discloses an eccentric wheel 1 can adapt to the hole site at the different degree of depth, avoids carrying out the trouble of fixing a position to eccentric wheel 1 through the hole site on the second component 4 among the prior art, has reduced the trompil degree of difficulty. Simultaneously, the hole site of same degree of depth also can be seted up to the second component 4 of different thickness is installed the utility model discloses an eccentric wheel 1 has avoided among the prior art high limitation that needs design according to the thickness of second component 4 of eccentric wheel 1, has improved the commonality of eccentric wheel 1 on the second component 4 of different thickness of same specification, and assembles more simply swiftly, is favorable to improving assembly efficiency.

Wherein, the utility model discloses the eccentric groove 11 structure of the body is the same with the eccentric groove 11 structure of current eccentric wheel 1, and the eccentricity of eccentric groove 11 is located the inboard that deviates from the socket. The structure of the operation hole 12 is determined according to the outer diameter size of the eccentric wheel 1, the operation hole 12 may be a blind hole or a through hole structure under different processing technologies, and the cross section of the operation hole 12 may be a straight shape, a cross shape, a hexagonal shape, or the like, which is not limited herein.

Further, in some embodiments, the body of the eccentric wheel 1 of the present invention is a metal piece with a tensile strength of more than or equal to 280N/mm, for example, is made of iron, stainless steel, alloy steel, or aluminum alloy, and has strong bearing capacity, stable physical and chemical properties, and long service life. Meanwhile, because materials such as iron, stainless steel or alloy steel belong to materials with high plasticity, low hardness and the like, the eccentric groove 11 of the eccentric wheel 1 is formed by a cold heading process, the manufacturing efficiency is high, and the manufacturing cost is low.

Further, the embodiment of the present invention does not limit the outer diameter of the eccentric wheel 1, but in order to improve the invisibility of the eccentric wheel 1 on the second member 4, as shown in fig. 8, 15, and 22, the outer diameter D of the eccentric wheel 1 of the embodiment of the present invention is 7-12mm, such as 7.5mm, 8mm, 10mm, 11mm, and 11.5 mm. When the eccentric wheel 1 of the embodiment of the utility model is iron or steel, the processing technology that the external diameter of the eccentric wheel 1 is 7.5-9mm and 9-12mm has difference, specifically as follows:

when the outer diameter of the eccentric wheel 1 is 7-9mm, firstly, an eccentric groove 11 is machined at the bottom of the body through a cold heading process, an operation hole 12 is machined at the top of the body through a cold heading process, at the moment, the operation hole 12 is a blind hole, then, a socket 13 and a connecting port 14 are machined at the side part of the body through a punching or milling process, but chips can be generated in the eccentric groove 11 in the machining process, and the chips in the eccentric groove 11 are removed in a mode of shaking or vibrating the eccentric wheel 1 after the machining is finished.

When the outer diameter of the eccentric wheel 1 is 9-12mm, firstly, an eccentric groove 11 is machined at the bottom of the body through a cold heading process, an operation hole 12 is machined at the top of the body through a cold heading or punching process, at the moment, the operation hole 12 is of a through hole structure, the operation hole 12 penetrates through the eccentric groove 11, then, a socket 13 is machined at the side of the body through a punching process, then, a connecting port 14 is machined at the side of the body through the punching process, but chips can be generated in the eccentric groove 11 in the machining process, and the chips in the eccentric groove 11 are removed by blowing the operation hole 12 through high-speed airflow in the machining process or after the machining is finished. In order to ensure the punching efficiency of the operation hole 12, the distance between the top end surface of the body and the bottom of the eccentric groove 11 is usually less than 2 mm.

In some embodiments, the connecting rod 2 of the present invention is preferably the first connecting member in "first connecting member, connecting member and connecting system" disclosed in chinese patent No. CN114321115A, and is used in cooperation with the eccentric wheel 1 of the present embodiment having an outer diameter of 7-12 mm. In other embodiments, the utility model discloses a connecting rod 2 can also be the connecting rod of two unification connecting pieces or trinity connecting piece among the prior art, no longer gives unnecessary details here.

Further, the minimum distance L between the top of the socket 13 and the connection port 14 may be 0mm, 0.3mm, 0.5mm, 0.8mm, 1.0mm, 1.3mm, 1.5mm, etc. As shown in fig. 14 and 21, the top of the socket 13 and the bottom of the eccentric groove 11 are located on the same horizontal plane, and the minimum distance L also satisfies: l is more than or equal to 1.0 mm. It can be understood that, because the connecting groove 22 has a certain depth, in order to ensure that the neck 23 corresponding to the connecting groove 22 can slide into the connecting port 14 smoothly, the minimum distance L between the top of the socket 13 and the connecting port 14 is greater than or equal to the total size of the connecting groove 22 and the neck 23 corresponding to the connecting groove, and therefore the minimum distance L between the top of the socket 13 and the connecting port 14 should satisfy 1.0mm ≦ L ≦ 1.5mm, for example, L is 1.1mm, 1.2mm, 1.3mm, 1.5mm, and so on, so that at least a portion of the neck 23 corresponding to the connecting groove 22 is aligned with the connecting port 14 by abutting the groove bottom of the eccentric groove 11 to the connecting boss 21, and the purpose of positioning the connecting groove 22 on the eccentric wheel 1 during the assembling process is achieved.

In another embodiment, as shown in fig. 7, 11 and 18, the top of the socket 13 is positioned below the bottom of the eccentric groove 11, a positioning part 15 is formed on the body between the top of the socket 13 and the bottom of the eccentric groove 11, and the height H of the positioning part 15 along the vertical direction is more than or equal to 0.5 mm. It can be understood that the minimum distance L between the bottom of the positioning portion 15 (i.e. the top of the opening 13) and the connection opening 14 is 0-1.5mm, and when the minimum distance L between the bottom of the positioning portion 15 and the connection opening 14 is 0, since the connection groove 22 has a certain depth, in order to ensure that the connection groove 22 can smoothly slide into the connection opening 14, the positioning portion 15 needs to be inserted into at least a part of the connection groove 22, that is, when the connection boss 21 and the groove bottom of the eccentric groove 11 have position interference, the neck portion 23 corresponding to the connection groove 22 can still enter the connection opening 14; or to avoid positional interference as the neck portion 23 corresponding to the connecting groove 22 enters the connecting port 14. Therefore, the embodiment of the utility model provides a through setting for location portion 15 along the high H of upper and lower direction and be greater than or equal to 0.5mm, for example 0.6mm, 0.8mm, 1.0mm, 1.5mm etc. fix a position connecting groove 22 through location portion 15 (being that the bottom of the top butt of socket 13 to connecting groove 22 fixes a position) to make in the neck 23 that connecting groove 22 corresponds slides in connector 14, improve assembly efficiency and reduce the assembly degree of difficulty. In the present embodiment, the minimum distance L between the top of the socket 13 and the connection port 14 should satisfy 0mm ≤ L ≤ 1.5mm, and if L is 0mm, 0.5mm, 1mm, 1.2mm, 1.3mm, 1.4m, L is less than half of the diameter of the neck 23 corresponding to the connection groove 22, and the neck 23 corresponding to the connection groove 22 does not interfere with the connection port 14.

In some embodiments, as shown in fig. 12 and 23, in order to make it more labor-saving to insert the neck portion 23 corresponding to the connection groove 22 into the connection port 14 by inertia, the top of the insertion opening 13 has a circular arc shape or a diagonal shape with a high middle and two low sides. As shown in fig. 11 and 18, when the end of the circular arc-shaped and diagonal line-shaped insertion opening 13 is connected to the connection opening 14, L is understood to be 0 mm.

In addition, in order to facilitate the assembly of the connecting groove 22 on the eccentric wheel 1, the connecting groove 22 is annularly arranged on the connecting rod 2, so that the groove bottom of the connecting groove 22 is arc-shaped. In order to improve the positioning adaptability between the top of the socket 13 and the connecting groove 22, the top of the socket 13 is arc-shaped with a high middle part and two low sides, so that when the groove bottom of the connecting groove 22 abuts against the top of the socket 13, the groove bottom of the connecting groove 22 is attached to the top of the socket 13, and the positioning precision is improved. In other embodiments, as shown in fig. 5, 9, 16, 19, the top of the socket 13 may also be planar or pointed or have other irregular shapes.

In some embodiments, as shown in fig. 5-22, the bottom of the socket 13 extends through the bottom of the body such that the neck 23 corresponding to the connecting groove 22 enters the socket 13 from the opening at the bottom of the socket 13, and then the groove bottom of the connecting groove 22 abuts the top of the socket 13 and the neck 23 slides into the connecting port 14.

In some embodiments, as shown in fig. 23, the bottom of the socket 13 does not extend through the bottom of the body, such that the neck 23 corresponding to the connecting groove 22 enters the socket 13 from the periphery of the body, and then the neck 23 slides into the connecting port 14 after the bottom of the connecting groove 22 abuts the top of the socket 13.

In some embodiments, as shown in fig. 8, 15 and 22, the eccentricity γ of the eccentric groove 11 is 2.2-4.5mm, wherein the eccentricity is the thickness dimension between the inner side wall of the eccentric groove 11 facing away from the socket 13 and the outer side wall of the eccentric 1. When the eccentric wheel 1 rotates, the connecting boss 21 rotates along the eccentric arc from the position of the socket 13 to the position of the maximum eccentric amount in the eccentric groove 11, and the first component 3 is gradually drawn toward one side of the second component 4, so that the gap between the first component 3 and the second component 4 is reduced. The eccentricity gamma is set to be 2.2-4.5mm, so that the gap between the first component 3 and the second component 4 after connection can be greatly reduced, the sealing performance of the connection part of the first component 3 and the second component 4 is improved, and the installation is convenient.

In one embodiment, when the bottom of the socket 13 penetrates the bottom of the body, the first member 3 and the second member 4 are installed in the following way by the eccentric wheel 1 and the connecting rod 2 of the embodiment of the present invention: the connecting rod 2 is fastened to the first member 3 at an end thereof away from the connecting boss 21 and the connecting groove 22 (for example, by screwing or by an expansion nut), the second member 4 is provided with a channel 41 at a side portion thereof and a mounting hole 42 at a top portion thereof communicating with the channel 41, the connecting boss 21 and the connecting groove 22 of the connecting rod 2 are inserted into the mounting hole 42 through the channel 41, the eccentric wheel 1 is placed in the mounting hole 42 with the bottom portion of the socket 13 aligned with the connecting groove 22, the eccentric wheel 1 is pushed to slide downward in the mounting hole 42 by a tool such as a screwdriver acting on the operating hole 12, when the top portion of the socket 13 of the eccentric wheel 1 abuts against the bottom portion of the connecting groove 22 or the bottom portion of the eccentric groove 11 abuts against the connecting boss 21, at least a portion of the neck portion 23 corresponding to the connecting groove 22 is aligned with the connecting port 14, the tool such as a screwdriver acting on the operating hole 12 to rotate the eccentric wheel 1 so that the neck portion 23 corresponding to the connecting groove 22 smoothly slides into the connecting port 14, finally, the connecting boss 21 is located at the eccentric amount position of the eccentric groove 11, and the connecting rod 2 and the eccentric wheel 1 are limited to be separated from each other by mutually clamping the circumferential side part of the eccentric wheel 1 and the connecting boss 21, so that the first component 3 and the second component 4 are connected with the eccentric wheel 1 in a concealed mode through the connecting rod 2.

In one embodiment, when the bottom of the socket 13 does not penetrate the bottom of the body, the first member 3 and the second member 4 are mounted by the eccentric wheel 1 and the connecting rod 2 of the embodiment of the present invention as follows: firstly, one end of the connecting rod 2 far away from the connecting boss 21 and the connecting groove 22 is fastened on the first component 3 (for example, threaded connection or through an expansion nut), the side part of the second component 4 is provided with a channel 41, the top part of the second component is provided with a mounting hole 42 communicated with the channel 41, the eccentric wheel 1 is arranged in the mounting hole 42 and aligns with the channel 41 of the socket 13, then the connecting boss 21 and the connecting groove 22 of the connecting rod 2 are inserted into the mounting hole 42 through the channel 41 and enter the eccentric groove 11 through the socket 13, the eccentric wheel 1 is pushed to slide downwards in the mounting hole 42 through the operation hole 12 by a tool such as a screwdriver, when the top part of the socket 13 of the eccentric wheel 1 is abutted to the groove bottom of the connecting groove 22 or the groove bottom of the eccentric groove 11 is abutted to the connecting boss 21, at least one part of the neck 23 corresponding to the connecting groove 22 is just aligned with the connecting port 14, the tool such as the screwdriver is acted on the operation hole 12 to rotate the eccentric wheel 1 to enable the neck 23 corresponding to enable the connecting groove 22 to smoothly slide into the connecting groove 23 In the opening 14, finally, the connecting boss 21 is located at the eccentric amount position of the eccentric groove 11, and the connecting rod 2 and the eccentric wheel 1 are limited to be separated from each other by mutually clamping the circumferential side part of the eccentric wheel 1 and the connecting boss 21, so that the first component 3 and the second component 4 are connected with the eccentric wheel 1 in a concealed mode through the connecting rod 2. It should be noted that this mounting is also applicable to the eccentric 1 in which the bottom of the socket 13 extends through the bottom of the body.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean 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 present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. 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 invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. An eccentric wheel is characterized by comprising a body, wherein the bottom of the body is provided with an eccentric groove, the top of the body is provided with an operation hole, the circumferential side part of the body is provided with a socket communicated with the eccentric groove, the circumferential side part of the body is provided with a connecting port communicated with the eccentric groove and extending along the circumferential direction of the body, and one end of the connecting port is communicated with one side of the socket;

wherein the minimum distance L between the top of the socket and the connecting port is less than or equal to 1.5 mm.

2. The eccentric wheel according to claim 1, wherein said body has a tensile strength of 280N/mm or more ² The metal member of (1).

3. Eccentric according to claim 2, characterised in that the body is a one-piece part made of iron or stainless or alloy steel.

4. The eccentric of claim 3 wherein said eccentric is a unitary piece formed by a cold heading and stamping process.

5. The eccentric wheel of claim 1, wherein the top of said socket is located on the same horizontal plane as the bottom of said eccentric groove, said minimum distance L further satisfying: l is more than or equal to 1.0 mm.

6. The eccentric wheel according to claim 1, wherein the top of the socket is located below the bottom of the eccentric groove, the body is provided with a positioning part between the top of the socket and the bottom of the eccentric groove, and the height H of the positioning part along the vertical direction is more than or equal to 0.5 mm.

7. The eccentric wheel according to claim 1, wherein the top of said socket is in the shape of a circular arc with a high middle and two low sides.

8. The eccentric of claim 1, wherein the bottom of said socket extends through the bottom of said body.

9. The eccentric of claim 1, wherein said operating hole extends through to said eccentric slot.

10. The eccentric wheel according to any of claims 1 to 9, characterized in that the external diameter dimension D of the eccentric wheel is set, wherein D is 7mm ≦ 12 mm.

11. A connecting assembly comprising a connecting rod and the eccentric wheel as claimed in any one of claims 1 to 10, wherein a connecting boss and a connecting groove are formed at one end of the connecting rod, the connecting boss and the connecting groove are inserted into the eccentric groove through the socket, a neck portion corresponding to the connecting groove slides into the connecting port along the socket, and the connecting boss is restricted from being pulled out of the connecting port by the circumferential side portion of the body.

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