CN117662700A

CN117662700A - Linear transmission mechanism, drawer assembly and storage cabinet

Info

Publication number: CN117662700A
Application number: CN202211015307.XA
Authority: CN
Inventors: 席永学
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2024-03-08

Abstract

The invention relates to the field of mechanical structures, and provides a linear transmission mechanism, a drawer assembly and a storage cabinet. A linear drive mechanism comprising: the rotary wheel is wound with a flexible rope which is suitable for moving along with the rotation of the rotary wheel, and the flexible rope comprises a first flexible rope section positioned at one side of the rotary wheel and a second flexible rope section positioned at the other side of the rotary wheel; the rotary driving piece is connected with the rotary wheel and used for driving the rotary wheel to rotate; the mounting piece is provided with a guide rail and is provided with a fixed pulley; the first-stage sliding rail is suitable for linear sliding relative to the guide rail; the first flexible cable section and the second flexible cable section extend in opposite directions relative to the first-stage sliding rail; the rotating wheel is positioned at one end of the guide rail, and the preset included angle between the rotating axis of the rotating wheel and the surface of the mounting piece is smaller than or equal to 90 degrees. The linear transmission mechanism provided by the invention has the advantages that the rotating piece is matched with the flexible rope to drive the primary slide rail to stretch and move, the structure is simple, the thickness of the linear transmission mechanism can be reduced, and the installation is convenient.

Description

Linear transmission mechanism, drawer assembly and storage cabinet

Technical Field

The invention relates to the technical field of mechanical structures, in particular to a linear transmission mechanism, a drawer assembly and a storage cabinet.

Background

Among the transmission structures, the linear transmission mechanism is widely used in various fields. In the related art, the linear transmission mechanism has larger thickness, larger occupied space, difficult adaptation to narrow space and higher requirement on miniaturization.

Taking the example that the linear transmission mechanism is installed in the refrigerator, under the condition of the same appearance volume, a larger storage space in the refrigerator is pursued, and the smaller the volume of the linear transmission mechanism and the better the occupied space are, therefore, the problem of how to reduce the volume of the linear transmission mechanism needs to be solved.

Disclosure of Invention

The present invention is directed to solving at least one of the technical problems existing in the related art. Therefore, the invention provides the linear transmission mechanism, the rotating piece is matched with the flexible rope to drive the first-stage slide rail to stretch and move, the structure is simple, the thickness of the linear transmission mechanism can be reduced, and the installation is convenient.

The invention further provides a drawer assembly.

The invention further provides a storage cabinet.

A linear drive mechanism according to an embodiment of the first aspect of the present invention includes:

the rotating wheel is wound with a flexible rope, the flexible rope is suitable for moving along with the rotation of the rotating wheel, and the flexible rope comprises a first flexible rope section positioned at one side of the rotating wheel and a second flexible rope section positioned at the other side of the rotating wheel;

The rotary driving piece is connected with the rotary wheel and used for driving the rotary wheel to rotate;

the mounting piece is provided with a guide rail and is provided with a fixed pulley;

the first-stage sliding rail is suitable for sliding linearly relative to the guide rail;

the first flexible cable section is connected to the primary sliding rail, the second flexible cable section bypasses the fixed pulley and is connected to the primary sliding rail, and the first flexible cable section and the second flexible cable section extend in opposite directions relative to the primary sliding rail;

the rotating wheel is positioned at one end of the guide rail, the primary sliding rail is suitable for moving along the guide rail in a direction away from the rotating wheel, and a preset included angle between the rotating axis of the rotating wheel and the surface of the mounting piece is smaller than or equal to 90 degrees.

The linear transmission mechanism comprises a rotating wheel, a flexible rope, a rotary driving piece, a mounting piece and a primary sliding rail, wherein the rotary driving piece is used for driving the rotating wheel to rotate, the flexible rope moves along with the rotating wheel in the rotating process of the rotating wheel, and the telescopic adjustment of the primary sliding rail is realized through the cooperation of the rotating wheel, the flexible rope and the fixed pulley, so that the linear transmission mechanism is simple in structure; the preset included angle between the rotating axis of the rotating wheel and the surface of the mounting piece is smaller than or equal to 90 degrees, the rotating wheel is not perpendicular to the mounting piece, the preset included angle is reduced as much as possible, the thickness of the linear transmission mechanism is reduced, and the mounting and dismounting are convenient.

According to one embodiment of the invention, the first flexible cable section is arranged on the path between the rotating wheel and the first-stage sliding rail, and the first flexible cable section is wound on the first adjusting piece and extends towards the first-stage sliding rail; and/or the second adjusting piece is positioned on a path between the second flexible rope section and the fixed pulley from the rotating wheel, and the second flexible rope section is wound on the second adjusting piece and extends towards the fixed pulley.

According to one embodiment of the invention, at least one of the first adjusting member and the second adjusting member comprises a shaft body and a wheel body, wherein the shaft body is connected to the mounting member, the wheel body is rotatably connected to the mounting member through the shaft body, and the first flexible cable section or the second flexible cable section bypasses one side of the wheel body, which faces the mounting member.

According to one embodiment of the invention, the primary slide rail is connected with a tensioning mechanism, the tensioning mechanism comprises a first wheel body and a first claw, the first wheel body is suitable for moving along a first direction and is connected with the first flexible cable section so that the first flexible cable section moves along with the first wheel body, one end of the first claw is limited on the first wheel body to stop the first wheel body in a second direction, the other end of the first claw is connected with the primary slide rail, and the first direction is opposite to the second direction;

And/or, the tensioning mechanism further comprises a second wheel body and a second claw, the second wheel body is suitable for moving along the second direction and is connected with the second flexible cable section so that the second flexible cable section moves along with the second wheel body, one end of the second claw is limited on the second wheel body so as to stop the second wheel body in the first direction, and the other end of the second claw is connected with the first-stage sliding rail.

According to one embodiment of the invention, the axis of rotation of the rotating wheel is parallel to the surface of the mounting.

According to one embodiment of the invention, the rotating wheel and the rotary driving member are located at one end of the primary slide rail in the sliding direction.

According to one embodiment of the invention, the rotary wheel and the rotary drive are located outside the mounting.

According to one embodiment of the invention, a plurality of intermediate slide rails are arranged between the primary slide rail and the guide rail, and the primary slide rail is mounted on the guide rail through the intermediate slide rails; the middle sliding rail is provided with a movable pulley, and the flexible rope sequentially bypasses the fixed pulley and the movable pulley.

According to one embodiment of the invention, the intermediate slide rail comprises a secondary slide rail which is mounted on the guide rail and is suitable for sliding along the guide rail, and a first movable pulley and a second movable pulley are arranged on the secondary slide rail;

The primary slide rail is arranged on the secondary slide rail and is suitable for moving relative to the secondary slide rail;

the second flexible cable section sequentially bypasses the fixed pulley, the first movable pulley and the second movable pulley.

According to one embodiment of the invention, a first guide part and a second guide part are arranged on one side, facing the primary slide rail, of the secondary slide rail, the first guide part is connected with the guide rail in a sliding manner, the second guide part is connected with the primary slide rail in a sliding manner, and the guide rail and the primary slide rail are arranged in parallel on the secondary slide rail.

A drawer assembly according to an embodiment of the second aspect of the present invention comprises a drawer body and a linear drive mechanism as described above, the linear drive mechanism being connected to at least one side of the drawer body.

According to one embodiment of the invention, the linear transmission mechanism is arranged below the drawer body, and the rotating wheel and the rotating driving piece are positioned behind the drawer body.

According to a third aspect of the invention, the locker comprises a locker body and further comprises the linear transmission mechanism or the drawer assembly, wherein the mounting piece is connected with the locker body.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural view of a linear transmission mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic view of the part of the portion A in FIG. 1 in an enlarged configuration;

FIG. 3 is a schematic view of a linear driving mechanism according to an embodiment of the present invention; the difference from fig. 1 is that the primary slide rail and the secondary slide rail extend from the mounting member;

fig. 4 is a schematic front view of a linear transmission mechanism according to an embodiment of the present invention; in the figure, the primary slide rail and the secondary slide rail are not extended;

FIG. 5 is a schematic side view of a linear drive mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a first connector according to an embodiment of the present invention;

fig. 7 and 8 are schematic diagrams of a first method for winding a connecting piece flexible cable according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a first connecting piece according to an embodiment of the present invention, in which two winding portions are wound with a flexible cable;

FIG. 10 is a schematic structural view of a second connector according to an embodiment of the present invention; the figure illustrates the state of the completion of the winding of the flexible cord;

FIG. 11 is a schematic structural view of a third connector according to an embodiment of the present invention; the figure illustrates the state of the completion of the winding of the flexible cord;

FIG. 12 is a schematic view of a fourth connector according to an embodiment of the present invention; the figure illustrates the state of the completion of the winding of the flexible cord;

FIG. 13 is a schematic structural view of a fifth connector according to an embodiment of the present invention; the figure illustrates the state of the completion of the winding of the flexible cord;

fig. 14 is a schematic structural view of a connection state between a tensioning mechanism and a flexible cable according to an embodiment of the present invention;

FIG. 15 is a schematic view of a front side angular configuration of a tensioning mechanism provided by an embodiment of the present invention;

FIG. 16 is a schematic top view of a tensioning mechanism according to an embodiment of the present invention;

FIG. 17 is a schematic diagram of a locker according to an embodiment of the present invention; the drawer body is shown in an extended position.

Reference numerals:

1. a rotating wheel; 2. a flexible cable; 201. a first flex cable segment; 202. a second flex cable segment; 203. a first sub-cord segment; 204. a second sub-cord segment; 205. a third sub-cord segment; 206. a fixed section; 207. winding the section; 3. a mounting member; 301. a guide rail; 302. a fixing member; 4. a first stage slide rail; 401. a mounting part; 5. a second stage slide rail; 501. a first guide part; 502. a second guide part; 6. a fixed pulley; 7. a connecting piece; 701. a first threading part; 702. a second threading part; 703. a third threading part; 704. a fourth threading part; 705. a first winding part; 706. a second winding part; 707. a protruding portion; 8. a first movable pulley; 9. a second movable pulley; 10. a second adjusting member; 1001. a wheel body; 1002. a shaft body; 11. a guard board; 12. a drawer body; 13. a rotary driving member; 14. a cabinet body; 510. a first wheel body; 511. a first tank body; 512. a first connection portion; 513. a first winding part; 514. a first barrier; 515. a first clamping part; 516. a first wire clamping groove; 5161. a first groove portion; 5162. a second groove portion; 517. a first mounting hole; 520. a first claw; 530. a second wheel body; 540. a second claw; 550. and (5) connecting a plate.

Detailed Description

Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus 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 embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality", "a plurality of groups" is two or more.

In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.

In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some 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 embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed 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. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

In the embodiment of the first aspect of the present invention, as shown in fig. 1 to 5, there is provided a linear transmission mechanism, including a rotating wheel 1, a rotary driving member 13, a mounting member 3 and a primary sliding rail 4, the rotating wheel 1 is wound with a flexible cable 2, the flexible cable 2 is adapted to move along with rotation of the rotating wheel 1, and the flexible cable 2 includes a first flexible cable segment 201 located at one side of the rotating wheel 1 and a second flexible cable segment 202 located at the other side of the rotating wheel 1; the rotary driving piece 13 is connected with the rotary wheel 1, and the rotary driving piece 13 is used for driving the rotary wheel 1 to rotate; the mounting member 3 is provided with a guide rail 301, and the mounting member 3 is mounted with a fixed pulley 6; the primary slide rail 4 is suitable for linear sliding relative to the guide rail 301; the first flexible cable section 201 is connected to the primary slide rail 4, the second flexible cable section 202 bypasses the fixed pulley 6 and is connected to the primary slide rail 4, and the first flexible cable section 201 and the second flexible cable section 202 extend in opposite directions relative to the primary slide rail 4; the swiveling wheel is located the one end of guide rail, and one-level slide rail is suitable for to the direction removal of keeping away from the swiveling wheel, and the axis of rotation of swiveling wheel 1 forms the angle of predetermineeing with the surface of installed part 3, predetermines the contained angle and is less than 90.

The rotary driving member 13 may drive the rotary wheel 1 to rotate, so that the rotary wheel 1 drives the first flexible cable section 201 and the second flexible cable section 202 of the flexible cable 2 to move. On the basis, the first flexible cable section 201 is connected to the primary sliding rail 4, the second flexible cable section 202 bypasses the fixed pulley 6 and is connected to the primary sliding rail 4, the first flexible cable section 201 and the second flexible cable section 202 bypass the primary sliding rail 4, the fixed pulley 6 and the rotating wheel 1 to form an annular path, when the primary sliding rail 4 needs to move, the rotating driving piece 13 drives the rotating wheel 1 to rotate, the rotating wheel 1 rotates to enable one of the first flexible cable section 201 and the second flexible cable section 202 to continue to wind towards the rotating wheel 1, the other one of the first flexible cable section 201 and the second flexible cable section 202 is separated from the rotating wheel 1 (gradually separated to be completely separated or partially separated), and then the flexible cable 2 can drive the primary sliding rail 4 to do linear motion along the guide rail 301 of the mounting piece 3. Along with the different rotation directions of the rotating wheel 1, the primary slide rail 4 moves linearly along the guide rail 301 in different directions. From the state of fig. 1 to 3, the rotating wheel 1 rotates forward, and the first-stage sliding rail 4 is driven by the flexible cable 2 to slide in the direction of extending out of the mounting piece 3, in this process, the first flexible cable section 201 (part or all of the first flexible cable section) is gradually separated from the rotating wheel 1, and the second flexible cable section 202 is gradually wound towards the rotating wheel 1. In the state of fig. 3 to fig. 1, when the rotating wheel 1 rotates reversely, the first-stage sliding rail 4 is driven by the flexible cable 2 to slide in the direction of returning to the mounting member 3, in this process, the first flexible cable section 201 is gradually wound towards the rotating wheel 1, and the second flexible cable section 202 (part or all of the second flexible cable section) is gradually separated from the rotating wheel 1. The forward direction and the reverse direction are relative concepts, and the extending direction of the first-stage sliding rail 4 can be ensured to meet the requirement.

The fixed pulley 6 is used for adjusting the direction of the second flexible cable segment 202, so that the first flexible cable segment 201 and the second flexible cable segment 202 extend in opposite directions relative to the primary sliding rail 4, which can be understood that a space is reserved between the fixed pulley 6 and the rotating wheel 1, and a space is reserved between the fixed pulley 6 and the position where the second flexible cable segment 202 is connected to the primary sliding rail 4, so that the direction of the second flexible cable segment 202 is adjusted, and the first flexible cable segment 201 and the second flexible cable segment 202 are ensured to extend in opposite directions.

The preset angle is smaller than 90 degrees, that is, the rotation axis of the rotating wheel 1 is not perpendicular to the mounting piece, the rotation axis of the rotating wheel 1 is not perpendicular to the sliding direction of the primary sliding rail 4, and the preset included angle is as small as possible, so that the thickness of the linear transmission mechanism is reduced, and the linear transmission mechanism is thinner. When the preset angle is 0 °, the plane where the rotation axis of the rotating wheel 1 is located is parallel to the surface of the mounting member (the plane where the sliding direction of the primary pulley is located), the axial directions of the rotating driving member 13 and the rotating wheel 1 are not in the same direction as the thickness direction of the linear transmission mechanism, the axial directions of the rotating driving member 13 and the rotating wheel 1 extend along the length or width direction of the linear transmission mechanism, the thickness of the whole linear transmission mechanism cannot be influenced due to the axial lengths of the rotating driving member 13 and the rotating wheel 1, and the thickness of the linear transmission mechanism can be reduced to be smaller.

The preset angle can be 60 degrees, 45 degrees, 30 degrees, 20 degrees, 10 degrees, 0 degrees and the like, and particularly can be adjusted according to the installation space.

The first flexible cable segment 201 and the second flexible cable segment 202 may be two independent ropes or an integrated rope, and the structural form of the flexible cable 2 may be selected according to needs, which is not limited herein. One of the first and second cord segments 201, 202 extends from the upper side of the rotor 1 and the other extends from the lower side of the rotor 1, where up and down are understood to be opposite sides of the axis of rotation of the rotor 1.

The first-stage sliding rail 4 can be used for connecting a drawer which is horizontally pulled, or a containing structure which can be lifted along the vertical direction, or a containing structure which is obliquely moved and used for containing articles, so that the problem that a user is inconvenient to take the drawer and the content of the containing structure is solved; for example, when the linear transmission mechanism is used for driving the accommodating structure to lift, the waist sprain caused by bending of the user can be avoided, or the user can be prevented from being free of objects in the accommodating structure.

In order to realize linear motion, the rotary wheel 1, the rotary driving piece 13 and the pulley (comprising the fixed pulley 6 and the movable pulley) are matched, so that the linear driving mechanism occupies small space and has a simple structure, and the cost of the linear driving mechanism is low. Meanwhile, the rotary wheel 1, the rotary driving piece 13 and the fixed pulley 6 are convenient to assemble and disassemble.

The form of the guide rail 301 is not limited according to the embodiment of the present invention. When the primary slide rail 4 is directly mounted on the guide rail 301, the guide rail 301 only has to guide the primary slide rail 4. For example, the guide rail 301 may include a guide groove, and the primary slide rail 4 may be moved along the extending direction of the guide groove; alternatively, the guide rail 301 may include a guide projection, and the primary slide rail 4 may be moved along the extending direction of the guide projection. The guide rail 301 may be integrally formed with the mount 3, or may be a separate member fixed to the mount 3. Similarly, the structure of the primary slide rail 4 is not limited, so long as the primary slide rail 4 can form guiding fit with the guide rail 301, and further the primary slide rail 4 can move relative to the guide rail 301. For example, the primary slide rail 4 and the guide rail 301 may be engaged with each other by means of mating protrusions and grooves, or a sliding member such as a pulley may be installed between the primary slide rail 4 and the guide rail 301, and then the primary slide rail 4 and the guide rail 301 may be engaged with each other by means of the sliding member.

The primary slide rail 4 may be a separate component, or may be formed on the drawer body 12 or the structure of the accommodating structure (the container may be a shelf, a bottle frame, or the like), and in this case, a portion of the drawer body 12 or the accommodating structure for mounting to the guide rail 301 may be regarded as the primary slide rail 4.

According to the linear transmission mechanism provided by the embodiment of the invention, the linear motion mechanism of the primary slide rail 4 is realized through the rotating wheel 1, the flexible rope 2 and the pulley, the space is small, the transmission efficiency is high, the loss is small, the linear transmission mechanism is not limited by space, the position of the rotary driving piece 13 of the linear transmission mechanism is fixed, the linear transmission mechanism does not need to follow the motion of the primary slide rail 4, and when the rotary driving piece 13 is a motor, the wire does not need to follow the motion, so that the problem of dynamic bending of the wire can be avoided. The linear transmission mechanism of the embodiment of the invention is suitable for various occasions needing linear transmission, such as drawing of a drawer, lifting of a shelf and the like, and the drawer and the shelf can be arranged on various devices such as a refrigerator, a storage cabinet, a desk and the like, and is particularly suitable for the refrigerator.

It can be understood that, referring to fig. 1 and 2, the linear transmission mechanism further includes a second adjusting member 10, where the second adjusting member 10 is used to adjust the extending direction of the second flexible cable segment 202, so that the leading-out end of the second flexible cable segment 202 from the second adjusting member 10 is parallel to the sliding groove of the fixed pulley 6, so as to solve the problem that an included angle exists between the extending direction of the second flexible cable segment 202 and the sliding groove direction of the fixed pulley 6, avoid the second flexible cable segment 202 from generating a force perpendicular to the sliding groove direction of the fixed pulley 6, reduce the movement resistance between the second flexible cable segment 202 and the fixed pulley 6, and improve the movement stability of the second flexible cable segment 202.

The second adjusting member 10 is located on the path of the second flexible segment 202 from the rotating wheel 1 to the fixed pulley 6, and the second flexible segment 202 is wound around the second adjusting member 10 and extends toward the fixed pulley 6.

As shown in fig. 1 and 2, when the second flexible cable segment 202 is higher from the leading-out end of the rotating wheel 1 than the position of the second flexible cable segment entering the fixed pulley 6, the lower part of the second adjusting member 10 is parallel to the position of the second flexible cable segment entering the fixed pulley 6, and the second flexible cable segment 202 bypasses the lower part of the second adjusting member 10 and extends towards the fixed pulley 6. When the second flexible cable section 202 is lower than the position (not shown) of the fixed pulley 6 from the outlet end of the rotating wheel 1, the upper side of the second adjusting member 10 is parallel to the position of the fixed pulley 6, and the second flexible cable section 202 bypasses the upper side of the second adjusting member 10 and extends towards the fixed pulley 6.

It should be noted that, as shown in fig. 1 and fig. 2, when the plane of the rotation axis of the fixed pulley 6 is perpendicular to the plane of the sliding direction of the primary sliding rail 4 (the sliding groove of the fixed pulley 6 is parallel to the sliding direction of the primary sliding rail 4), the second adjusting member 10 may be provided to adjust the extending path of the second flexible cable segment 202 so as to adjust the friction resistance between the second flexible cable segment 202 and the fixed pulley 6; when the plane of the rotation axis of the fixed pulley 6 is parallel to the plane of the sliding direction of the primary sliding rail 4 (not shown in the figure, the sliding groove of the fixed pulley 6 is perpendicular to the sliding direction of the primary sliding rail 4), the height of the second flexible cable segment 202 has less influence on the motion resistance, and the second adjusting member 10 may not be provided.

It will be appreciated that as shown in fig. 2, the second adjusting member 10 includes a shaft 1002 and a wheel body 1001, the shaft 1002 is connected to the mounting member 3, the wheel body 1001 is rotatably connected to the mounting member 3 through the shaft 1002, and the second cord segment 202 bypasses the wheel body 1001 toward the side of the mounting member 3. The second cord segment 202 bypasses the rotatable wheel body 1001 such that the cooperation of the second cord segment 202 with the wheel body 1001 reduces the friction between the second adjustment member 10 and the second cord segment 202 such that the movement of the second cord segment 202 is smoother.

As shown in fig. 2, the second flexible cable segment 202 bypasses the lower part of the wheel body 1001, and the lower part of the wheel body 1001 is parallel to the sliding groove of the fixed pulley 6, so that the second flexible cable segment 202 extends to the fixed pulley 6 in a straight manner, and the friction force between the second flexible cable segment 202 and the fixed pulley 6 is reduced.

The wheel 1001 is rotatably connected with the shaft 1002, and the shaft 1002 is fixed on the mounting member 3 to realize rotation of the wheel 1001; or, wheel 1001 and axis body 1002 fixed connection, axis body 1002 rotate and connect in mounting 3, realize wheel 1001's rotation, simple structure and make things convenient for the dismouting, specifically can select as required.

Of course, the second adjusting member 10 may also be a guide block fixedly mounted on the mounting member 3, and the second adjusting member 10 may play a role of adjusting the extending path of the second cable segment 202, so as to ensure stable transmission of the cable 2 and reduce the sliding resistance of the primary sliding rail 4.

It can be understood that the linear transmission mechanism further includes a first adjusting member (not illustrated in the figure, the principle of the first adjusting member is the same as that of the second adjusting member 10, and the first adjusting member is used for adjusting different portions of the flexible cable 2, and reference may be made to the structure and principle of the second adjusting member 10 described above), where the first adjusting member is used for guiding and adjusting the extending path of the first flexible cable segment 201, and the first adjusting member is used for adjusting the distances between different positions of the first flexible cable segment 201 and the mounting member 3, so as to solve the problem that an included angle exists between the extending direction of the first flexible cable segment 201 and the moving direction of the first slide rail 4, avoid the first flexible cable segment 201 generating a force perpendicular to the sliding direction of the first slide rail 4, reduce the sliding resistance of the first slide rail 4, and improve the sliding stability of the first slide rail 4.

The first adjusting piece is located on the path between the first flexible cable section 201 and the first-stage sliding rail 4 from the rotating wheel 1, the first flexible cable section 201 bypasses the first adjusting piece and extends towards the first-stage sliding rail 4, so that the extending path of the first flexible cable section 201 is adjusted through the first adjusting piece, after the first flexible cable section 201 is adjusted through the first adjusting piece, the first flexible cable section 201 extends straight to the first-stage sliding rail 4, and the first flexible cable section 201 after the first adjusting piece is adjusted is parallel to the sliding direction of the first-stage sliding rail 4.

It will be appreciated that the structure of the first adjustment member may be the same as or different from the structure of the second adjustment member 10, and may be selected as desired. For example, the first adjusting member also includes a shaft 1002 and a wheel 1001, the shaft 1002 is connected to the mounting member 3, the wheel 1001 is rotatably connected to the mounting member 3 through the shaft 1002, and the first cable section 201 bypasses the wheel 1001 and extends toward the primary slide rail 4. Or, the first adjusting member may be a guide block fixedly mounted on the mounting member 3, the first adjusting member may play a role in adjusting the extending path of the first flexible cable section 201, and the second adjusting member 10 may play a role in adjusting the extending path of the second flexible cable section 202, so as to ensure stable transmission of the flexible cable 2 and reduce sliding resistance of the primary sliding rail 4.

Referring to fig. 1 and 2, the leading-out end of the first flexible cable section 201 is led out from the lower part of the rotating wheel 1, at this time, the extending direction of the first flexible cable section 201 to the first stage sliding rail 4 is parallel to the sliding direction of the first stage sliding rail 4, and the extending path of the first flexible cable section 201 can not be adjusted, and the first adjusting member is not required. The leading-out end of the second flexible cable section 202 is led out from the upper side of the rotary wheel 1, the leading-out end of the second flexible cable section 202 is higher than the fixed pulley 6, a second adjusting piece 10 is arranged on one side, close to the rotary wheel 1, of the mounting piece 3, a wheel body 1001 of the second adjusting piece 10 can rotate relative to the mounting piece 3, the leading-out end of the second flexible cable section 202 bypasses the lower side of the wheel body 1001, the lower side of the wheel body 1001 is parallel to a sliding groove of the fixed pulley 6, the second flexible cable section 202 extends to the fixed pulley 6 after being led out from the wheel body 1001, and friction force between the second flexible cable section 202 and the fixed pulley 6 is reduced as much as possible.

It can be understood that the rotating wheel 1 and the rotary driving piece 13 are located at one end of the first-stage sliding rail 4 in the sliding direction, so that the rotating wheel 1 and the rotary driving piece 13 are convenient to disassemble and assemble, the extending path of the flexible cable 2 is also facilitated to be simplified, the flexible cable 2 is convenient to be arranged, and the structure is simplified.

The rotating wheel 1 and the rotary driving member 13 may be located at the rear end or the front end of the primary slide rail 4. The front-rear direction is understood to mean that the extending direction of the primary slide rail 4 is the front, and the restoring direction of the primary slide rail 4 is the rear. As shown in fig. 1 and 3, the rotary wheel 1 and the rotary driving member 13 are located at the rear end of the primary slide rail 4.

It will be appreciated that, with reference to fig. 1, 3 and 4, the rotary wheel 1 and the rotary driving member 13 are located outside the mounting member 3, and it will be appreciated that the rotary wheel 1 and the rotary driving member 13 are not directly connected to the mounting member 3, and when the rotary driving member 13 is a motor, the influence of the vibration of the rotary driving member 13 and the rotary wheel 1 on the stability of the primary slide rail 4 can be reduced.

When the linear transmission mechanism is installed on the drawer body 12, that is, the primary slide rail 4 is directly connected with the drawer body 12, the rotary wheel 1 and the rotary driving piece 13 can be installed on the frame of the drawer assembly, the rotary wheel 1 and the rotary driving piece 13 are not directly hard-connected with the drawer body 12, but are in soft connection through the flexible cable 2, and the movement stability of the drawer body 12 can be improved. When linear drive installs the locker, the locker can be refrigeration plant, like refrigerator, freezer, sell cabinet etc. and rotatory wheel 1 and rotary drive 13 can install refrigeration plant's cabinet body 14, and rotatory wheel 1 and rotary drive 13 are not directly with drawer body 12 hard connection for rotary drive 13's vibration can not directly transmit for drawer body 12, makes drawer body 12's stability better.

When the rotary driving piece 13 is a motor, the motor can be arranged at any position outside the mounting piece 3, the transmission efficiency is high, and the wire does not need to move along with the first-stage sliding rail 4.

It can be understood that, as shown in fig. 1 and 3, a plurality of intermediate slide rails are arranged between the primary slide rail 4 and the guide rail 301, and the primary slide rail 4 is mounted on the guide rail 301 through the intermediate slide rails; the middle sliding rail is provided with a movable pulley, and the flexible rope 2 sequentially bypasses the fixed pulley 6 and the movable pulley, so that the primary sliding rail 4 performs multistage linear motion relative to the middle sliding rail.

Wherein the number of intermediate slide rails is not limited. When the middle slide rail is one, the middle slide rail is the second-stage slide rail 5; the number of the middle sliding rails is two, and the middle sliding rails comprise a second-stage sliding rail 5 and a third-stage sliding rail; the number of the middle sliding rails is three, and the middle sliding rails comprise a second-level sliding rail 5, a third-level sliding rail and a fourth-level sliding rail, and the like. When the intermediate slide rail is provided, the primary slide rail 4 is not directly mounted on the guide rail 301 at this time, but is mounted on the guide rail 301 through the intermediate slide rail such as the secondary slide rail 5 and the tertiary slide rail. For example, taking the example that the linear driving mechanism includes the secondary slide rail 5, at this time, the secondary slide rail 5 may be matched with the guide rail 301 and move linearly along the guide rail 301, and the primary slide rail 4 may be matched with the secondary slide rail 5 and move linearly along the secondary slide rail 5.

It should be noted that, without special limitation, the movable pulleys refer to all movable pulleys disposed on the intermediate slide rail, for example, the intermediate slide rail includes a second slide rail 5, and a first movable pulley 8 and a second movable pulley 9 on the second slide rail 5; under the condition that the middle sliding rail comprises a multi-stage sliding rail, the movable pulleys arranged on other middle sliding rails are further included.

When the linear transmission mechanism comprises the primary slide rail 4 and the secondary slide rail 5, the secondary expansion and contraction can be realized. Of course, the linear driving mechanism may further include three-stage slide rails, four-stage slide rails, five-stage slide rails, and the number of specific slide rails (in the case of no special limitation, the slide rails refer to at least one of the first-stage slide rail 4, the second-stage slide rail 5, and the three-stage slide rail) is not limited, and may be determined according to requirements. In some cases, the first-stage sliding rail 4 refers to a first sliding rail that drives to extend or retract when the rotary driving member 13 rotates; the second-stage slide rail 5 refers to a second slide rail which is driven by the rotary driving piece 13 to extend or retract continuously when the first-stage slide rail 4 moves to the limit position; the third slide rail refers to a third slide rail which is driven by the rotation driving piece 13 to extend or retract by continuing to move when the second slide rail 5 moves to the limit position, and so on. Under other conditions, the primary slide rail 4 is a part directly connected with the driven part, the secondary slide rail 5 is a next stage slide rail 4 directly connected with the primary slide rail 4, the tertiary slide rail is a next stage slide rail 4 directly connected with the secondary slide rail 5, and so on, and the final stage slide rail 4 is connected between the previous stage slide rail 4 and the mounting part 3.

As shown in fig. 1 and 3, the intermediate rail includes a secondary rail 5 as an example.

The middle slide rail comprises a second-stage slide rail 5, the second-stage slide rail 5 is arranged on the guide rail 301 and is suitable for sliding along the guide rail 301, and a first movable pulley 8 and a second movable pulley 9 are arranged on the second-stage slide rail 5; the primary slide rail 4 is arranged on the secondary slide rail 5 and is suitable for moving relative to the secondary slide rail 5; the second flexible cable section 202 sequentially bypasses the fixed pulley 6, the first movable pulley 8 and the second movable pulley 9 and is connected to the primary slide rail 4.

The first movable pulley 8 and the second movable pulley 9 are respectively positioned at two ends of the secondary slide rail 5, so that the movement stroke of the secondary slide rail 5 relative to the guide rail 301 is ensured. As shown in fig. 3, the first movable pulley 8 is disposed at the rear end of the secondary slide rail 5, and the second movable pulley 9 is disposed at the front end of the secondary slide rail 5. Similarly, in the case where the stroke of the secondary slide rail 5 meets the requirement, the first movable pulley 8 and the second movable pulley 9 may be disposed at other positions of the secondary slide rail 5.

It will be appreciated that referring to fig. 3, the second flex cable segment 202 includes a first sub-flex cable segment 203, a second sub-flex cable segment 204, and a third sub-flex cable segment 205. Wherein the first sub-cord segment 203 is located between the fixed pulley 6 and the first movable pulley 8; the second sub-flexible cable section 204 is positioned between the first movable pulley 8 and the second movable pulley 9; the third sub-cord segment 205 is located between the second traveling block 9 and the primary slide 4 (e.g., the connector 7 of the primary slide 4). In order to ensure smooth operation of the cord 2 and to save power of the rotary drive 13 under the same conditions, the first 203, second 204 and third 205 sub-cord segments may be arranged parallel to each other. Of course, the first, second and third sub-cord segments 203, 204 and 205 may also be angled with respect to each other.

It can be understood that, referring to fig. 3 to 5, a first guiding portion 501 and a second guiding portion 502 are disposed on a side of the secondary slide rail 5 facing the primary slide rail 4, the first guiding portion 501 is slidably connected to the guide rail 301, the second guiding portion 502 is slidably connected to the primary slide rail 4, and the guide rail 301 and the primary slide rail 4 are juxtaposed on the secondary slide rail 5. The first guide part 501 and the second guide part 502 are positioned on the same side of the secondary slide rail 5, which is helpful to simplify the structure of the secondary slide rail 5 and reduce the thickness of the linear transmission mechanism.

The first guide portion 501 is in guide engagement with the guide rail 301, the second guide portion 502 is in guide engagement with the primary slide rail 4, and the forms of the first guide portion 501 and the second guide portion 502 are not limited. For example, at least one of the first guide part 501 and the second guide part 502 may include a guide groove, and thus the first guide part 501 may move along an extending direction of the guide groove; alternatively, at least one of the first guide part 501 and the second guide part 502 may include a guide protrusion, and the first guide part 501 may be moved along an extension direction of the guide protrusion. Likewise, the structural form of the second guide 502 and the primary slide rail 4 is not limited, as long as a guide fit can be formed. For example, the second guiding portion 502 and the primary sliding rail 4 may be matched through a protrusion and a groove, or a sliding member, such as a pulley, may be installed between the second guiding portion 502 and the primary sliding rail 4, so as to reduce friction resistance, and make the motion of the primary sliding rail 4 smoother.

As shown in fig. 4 and 5, the guide rail 301 is connected to the mounting member 3 through the fixing member 302, and the fixing member 302 is connected to the mounting member 3 through a fastener (such as a screw, a rivet, a nut, etc.), so that the mounting manner of the guide rail 301 is simple and convenient to disassemble and assemble. The guide rail 301 is covered on the outer side of the first guiding portion 501, and the guide rail 301 plays a role in protecting the first guiding portion 501, so that the structure of the linear transmission mechanism is simpler. The first-stage slide rail 4 is covered on the outer side of the second guiding part 502, and the first-stage slide rail 4 can play a role in protecting the second guiding part 502. The side surfaces of the guide rail 301 and the primary slide rail 4, which are opposite to the secondary slide rail 5, are flat surfaces, and the surface of the mounting piece 3, which is opposite to the secondary slide rail 5, is also flat surfaces, so that the appearance of the linear transmission mechanism is simpler, and the integrity is stronger.

As shown in fig. 1 and 3, the linear transmission mechanism is provided with the guard plate 11, and through the arrangement of the guard plate 11, when the sliding rail is in a contracted state, part or all of the pulleys are basically hidden by the guard plate 11, so that the function of protecting the pulleys is achieved, and the integrity of the linear transmission mechanism is also stronger.

It will be appreciated that the primary track 4 is provided with a connector 7, the connector 7 being secured to the primary track 4 and adapted for linear movement along the secondary track 5, and the connector 7 connecting the first 201 and second 202 flex cable segments. The fixing manner of the connecting piece 7, the first flexible cable segment 201 and the second flexible cable segment 202 is not limited, and for example, the connecting piece 7, the first flexible cable segment 201 and the second flexible cable segment 202 may be bound, or the connecting piece 7, the first flexible cable segment 201 and the second flexible cable segment 202 may also be welded. Wherein, the setting of connecting piece 7 can make things convenient for the assembly between first level slide rail 4 and the second grade slide rail 5 to can make things convenient for the setting of flexible cable 2. Of course, the connecting piece 7 may not be provided, and the first flexible cable segment 201 and the second flexible cable segment 202 may be directly connected to the primary slide rail 4.

Referring to fig. 1 and 2, the connecting member 7 is fixed to the rear end of the primary slide rail 4 along the extending direction of the primary slide rail 4 with respect to the mounting member 3. In this case, the travel of the primary slide rail 4 relative to the secondary slide rail 5 can be ensured. Of course, the connecting piece 7 may be disposed at other positions of the primary slide rail 4 when the stroke of the primary slide rail 4 meets the requirement.

The rotating wheel 1 may be a synchronous pulley or a pulley, and the flexible cable 2 may be a belt or a flexible belt having a high friction coefficient. For example, the rotating wheel 1 may select a pulley and the flexible cord 2 selects a belt that mates with the pulley. The situation can ensure that the flexible rope 2 is driven to move when the rotating wheel 1 rotates, and the flexible rope 2 is prevented from slipping relative to the rotating wheel 1. Of course, the specific forms of the rotating wheel 1 and the flexible cable 2 are not limited, and only the rotating wheel 1 rotates to drive the flexible cable 2 to move. Likewise, the specific structure of the flexible cord 2 is not limited, and may be, for example, a wire rope.

The above-described rotation driving member 13 may be, but is not limited to, a motor (including a linear motor and a rotary motor), as long as the rotation driving member 13 can drive the rotary wheel 1 to rotate as a power source. For example, the rotary drive 13 may also be a pneumatic cylinder which can convert a linear motion into a rotation of the rotary wheel 1 via a rack and pinion pair. The rotary driving member 13 may also be a rotary handle, which can manually drive the rotary wheel 1 to rotate, so as to realize the sliding rail movement.

Based on the above embodiments, the linear transmission mechanism will be further described with reference to fig. 1 to 17.

The linear drive mechanism comprises two states, namely a contracted state and an extended state. Wherein, the retracted state refers to the sliding rail being retracted towards the rear end relative to the guide rail 301, corresponding to fig. 1 and 4; the extended state refers to the slide rail extending forward relative to the guide rail 301, corresponding to fig. 3. Correspondingly, the drawer or receiving structure connected to the primary slide 4 has two positions, an extended position and a retracted position.

Referring to the state shown in fig. 1 to 3, when the rotary wheel 1 rotates in the forward direction, the second flexible cable section 202 between the rotary wheel 1 and the fixed pulley 6 winds the rotary wheel 1, and at the same time, the second flexible cable section 202 drives the fixed pulley 6, the first movable pulley 8 and the second movable pulley 9 to rotate; the first flexible cable section 201 is wound out of the rotating wheel 1, so that the primary slide rail 4 extends away from the rotating wheel 1. When the primary slide rail 4 moves to the limit position, if the rotating wheel 1 continues to rotate in the forward direction, the second flexible cable segment 202 continues to wind toward the rotating wheel 1, so that the first movable pulley 8 is driven to move in the direction in which the primary slide rail 4 moves out, that is, the secondary slide rail 5 extends out relative to the guide rail 301. In the process that the primary sliding rail 4 extends outwards, at the moment, a second flexible cable section 202 between the second movable pulley 9 and the connecting piece 7 is shortened, and a first flexible cable section 201 between the connecting piece 7 and the rotating wheel 1 is lengthened; when the secondary slide rail 5 extends outwards, the second flexible cable section 202 between the fixed pulley 6 and the first movable pulley 8 becomes shorter, and the first flexible cable section 201 between the connecting piece 7 and the rotating wheel 1 continues to become longer.

Referring to fig. 3 to fig. 1, when the rotary wheel 1 rotates reversely, the second flexible cable section 202 between the rotary wheel 1 and the fixed pulley 6 winds out of the rotary wheel 1, and at the same time, the second flexible cable section 202 drives the fixed pulley 6, the first movable pulley 8 and the second movable pulley 9 to rotate; the first flexible cable section 201 is wound towards the rotating wheel 1 so that the primary slide rail 4 is retracted towards the rotating wheel 1. When the primary slide rail 4 moves to the limit position, if the rotating wheel 1 continues to reversely rotate, the first flexible cable segment 201 continues to be wound around the rotating wheel 1, and the second flexible cable segment 202 continues to be wound out of the rotating wheel 1, so that the secondary slide rail 5 retracts towards the direction approaching to the rotating wheel 1. When the primary slide rail 4 retracts, the first flexible cable section 201 is shortened, and the second flexible cable section 202 is lengthened; when the secondary slide rail 5 retracts, the first flexible cable section 201 becomes shorter and the second flexible cable section 202 continues to become shorter.

The forward direction and the reverse direction are opposite directions, such as the forward direction is anticlockwise and the reverse direction is clockwise.

When the linear transmission mechanism is installed on the drawer body 12, the installation positions of the rotating wheel 1 and the rotating driving piece 13 relative to the drawer body 12 are optionally selected at this time.

Referring to fig. 3, the fixed pulley 6 is disposed on the mount 3 corresponding to the front end of the guide rail 301, and the rotating wheel 1 is disposed on the mount 3 corresponding to the rear end of the guide rail 301. Under the condition that the mounting piece 3 is connected with the secondary slide rail 5, the secondary slide rail 5 is connected with a first movable pulley 8 and a second movable pulley 9, the rotary wheel 1 is arranged corresponding to the fixed pulley 6, the first movable pulley 8 and the second movable pulley 9, and the diameter of the rotary wheel 1 is larger than that of the fixed pulley 6, the first movable pulley 8 and the second movable pulley 9. Wherein, "the rotating wheel 1 is provided corresponding to the fixed pulley 6, the first movable pulley 8 and the second movable pulley 9" means that: the rotating wheel 1 is arranged along the front-back direction of the first movable pulley 8 and the second movable pulley 9, so that the smooth movement of the flexible cable 2 can be ensured. In addition, the diameter of the rotating wheel 1 is larger than that of the first movable pulley 8 and the second movable pulley 9, so that the sections of the flexible cable 2 positioned on two sides of the rotating wheel 1 can be tangent to the rotating wheel 1, and smooth operation of the flexible cable 2 is further guaranteed.

In the linear transmission mechanism in the embodiment, when the rotating wheel 1 rotates, the sliding rail can be driven to extend or retract, the rotary driving piece 13 is fixedly arranged at a fixed position, the rotary driving piece 13 does not need to move, a cable is not bent, the service life can be prolonged, the pulleys are arranged in a front-back staggered mode, the transmission efficiency is high, and the occupied space is small.

Next, a structure of a connecting member and a winding method of a flexible cable in a linear transmission mechanism are provided, but the structure of the connecting member and the winding method of the flexible cable in the following embodiments are not limited to be applied to the linear transmission mechanism.

As shown in fig. 6 to 13, there is provided a method of winding a flexible cord, the flexible cord 2 including a fixing section 206 positioned at one side of the connection member 7 and a winding section 207 connected to the fixing section 206,

the flexible cable winding method comprises the following steps:

step 110, as shown in fig. 7, the winding section 207 is threaded through the first threading part 701 of the connector 7, extends along the first threading part 701 toward the second threading part 702 of the connector 7, and is threaded through the second threading part 702;

step 120, as shown in fig. 8, extending along the second threading portion 702 to the third threading portion 703 of the connector 7 and penetrating the third threading portion 703;

step 130, as shown in fig. 10 to 13, of extending along the third threading part 703 in the direction of the second threading part 702;

in the step of extending the winding section 207 from the second threading portion 702 to the third threading portion 703, the winding section 207 is pressed against the fixing section 206.

The fixing section 206 at one end of the flexible cable 2 is positioned on the first side of the connecting piece 7, the winding section 207 passes through the first threading part 701 so that the flexible cable 2 is positioned on the second side of the connecting piece 7 (the second side is opposite to the first side), the winding section 207 passes through the second threading part 702 again, the flexible cable 2 is wound on a structure between the first threading part 701 and the second threading part 702, the flexible cable 2 passing through the second threading part 702 is positioned on the first side of the connecting piece 7, the flexible cable 2 passes through the third threading part 703 again, the flexible cable 2 is wound on a structure between the second threading part 702 and the third threading part 703, and the flexible cable 2 is positioned on the second side of the connecting piece 7, and at this time, the flexible cable 2 is far away from the connecting piece 7 on the second side of the connecting piece 7 along the direction of the third threading part 703 to the second threading part 702 so that the flexible cable 2 is connected to other components, thereby realizing transmission. Or after the flexible cable 2 passes through the third threading portion 703 again, the flexible cable 2 is wound on the structure between the second threading portion 702 and the third threading portion 703, and then the flexible cable 2 passes through the second threading portion 702 again and extends towards the third threading portion 703, and the flexible cable 2 is far away from the connecting piece 7 at the first side of the connecting piece 7, so that the flexible cable 2 is connected to other components, and transmission is realized.

Wherein the winding section 207 is pressed on the fixing section 206, and the winding section 207 is pressed on the fixing section 206 at least once, that is, the winding section 207 is wound at least once between the second threading portion 702 and the third threading portion 703. As shown in fig. 9 and 10, the winding section 207 is pressed onto the fixing section 206 at least twice, so as to strengthen the fixing of the fixing section 206, the number of times the winding section 207 is wound between the second threading portion 702 and the third threading portion 703 may be increased, so as to increase the number of times the winding section 207 presses the fixing section 206. As shown in fig. 11 to 13, the winding section 207 is pressed against the fixing section 206 at least once, and if the fixing effect on the fixing section 206 needs to be enhanced, the number of times the winding section 207 is wound between the second threading portion 702 and the third threading portion 703 may be increased, so as to increase the number of times the winding section 207 presses against the fixing section 206.

At least one end of the flexible cord 2 is wound to the connecting member 7 by the flexible cord winding method of the present embodiment. When one end of the flexible cable 2 is wound on the winding part of the connecting piece 7 by a flexible cable winding method, the fixing section 206 is a section from the end of the flexible cable 2 to the front of the first threading part 701, the winding section 207 passes through the first threading part 701 to a section led out of the connecting piece 7, the fixing section 206 and the winding section 207 do not have obvious boundaries, and the flexible cable 2 led out of the connecting piece 7 is a transmission section.

At least one end of the flexible cable 2 is fixed by the flexible cable winding method in this embodiment, so that the end of the flexible cable 2 is not required to be knotted or fixed in a non-detachable (such as bonding or welding) manner, the end of the flexible cable 2 is more convenient to disassemble and assemble, and the length of the whole flexible cable 2 in the fixed section 206 and the wound section 207 can be adjusted by disassembling the fixed section 206 and the wound section 207 so as to adjust the actual tensioning length. When at least one of the length of the fixing section 206 and the length of the winding section 207 increases, the function of tensioning the flexible cord 2 can be performed, such as increasing the length of the fixing section 206, increasing the number of times the winding section 207 is wound between the second threading portion 702 and the third threading portion 703, and the like.

According to the flexible cable winding method of the present embodiment, the end portion of the flexible cable 2 can be sufficiently fixed from the fixing section 206 and the winding section 207, the external force provides a pulling force to the portion (transmission section) of the flexible cable 2 extending out of the connecting member 7, and the flexible cable 2 can be tensioned so that the flexible cable 2 does not come loose from the end (transmission section) extending out of the connecting member 7.

Wherein, the connecting piece 7 can be the plate structure, and the thickness of connecting piece 7 is little, helps reducing the thickness of the drive mechanism that is provided with connecting piece 7. The first threading part 701, the second threading part 702, and the third threading part 703 may have a groove or a hole, and the like, and the structure through which the cord 2 can pass may be used as the threading part (the threading part may represent at least one of the first threading part 701, the second threading part 702, and the third threading part 703).

It will be appreciated that, in step 130, in the step of threading the winding section 207 out along the third threading portion 703 and extending in the direction of the second threading portion 702,

in step 131, as shown in fig. 6 to 9, the connecting member 7 is further provided with a fourth threading portion 704, the winding section 207 is threaded along the third threading portion 703, extends along the third threading portion 703 toward the fourth threading portion 704 and is threaded through the fourth threading portion 704, and extends along the fourth threading portion 704 and is threaded toward the second threading portion 702.

After the winding section 207 passes out along the third threading portion 703, the flexible cord 2 is located at the second side of the connecting member 7, the flexible cord 2 passes into the fourth threading portion 704 at the second side of the connecting member 7, and passes out from the fourth threading portion 704 to be located at the first side of the connecting member 7, and extends from the first side of the connecting member 7 to the second threading portion 702 for connection to other components. By adding the path of the third threading portion 703 to the fourth threading portion 704, the threading and winding path of the winding section 207 on the connecting piece 7 is increased, so that the length of the transmission section can be conveniently adjusted, and the relative position of the flexible cable 2 and the connecting piece 7 can be adjusted (for example, the flexible cable 2 is connected to other components from the first side or the second side of the connecting piece 7).

Referring to fig. 6 to 9, the third threading part 703 is located between the second threading part 702 and the fourth threading part 704. Of course, the second threading part 702 may be disposed between the third threading part 703 and the fourth threading part 704, and the position of the fourth threading part 704 may be flexible and may be specifically selected as required.

Based on this, the connecting piece 7 may be provided with a plurality of threading portions as needed, not limited to the above four threading portions, and the number of threading portions may be five, six or more, and may be specifically selected as needed. To simplify the structure of the connector 7, the number of threading portions is reduced as much as possible.

It will be appreciated that after step 131, the step of threading the winding section 207 out along the fourth threading portion 704 and extending in the direction of the second threading portion 702, i.e. before the cord 2 extends out of the connector 7;

the winding section 207 winds a plurality of turns between the second threading portion 702 and the fourth threading portion 704.

The winding section 207 can be wound for a plurality of turns between the second threading part 702 and the fourth threading part 704, so that the length of the winding section 207 can be increased, and the tensioning adjustment function is realized.

It will be appreciated that after step 130, the step of threading the winding segment 207 out along the third threading portion 703 and extending in the direction of the second threading portion 702, i.e. before the cord 2 extends out of the connector 7;

the winding section 207 winds a plurality of turns between the second threading portion 702 and the third threading portion 703.

The winding section 207 can also wind a plurality of turns between the second threading part 702 and the third threading part 703, thereby playing a role in tensioning and adjusting. In the case where the connecting member 7 is provided with the fourth threading portion 704, the tensioning manner of the flexible cord 2 is more flexible, and the relative positions of the flexible cord 2 and the connecting member 7 are also more flexible.

It will be appreciated that, after step 130, after the step of threading the winding section 207 out along the third threading portion 703 and extending in the direction of the second threading portion 702,

as shown in fig. 11 to 13, the winding section 207 is disposed through the second threading portion 702 and extends in a direction away from the second threading portion 702.

The winding section 207 passes through the second threading part 702 again, so that the winding length of the winding section 207 at the connecting piece 7 can be increased, the relative position (from the second side to the first side) of the winding section 207 and the connecting piece 7 can be adjusted, the position of the flexible cable 2 led out is more flexible, and the tensioning degree of the flexible cable 2 can be adjusted in a small length range.

Of course, after the winding section 207 passes through the third threading portion 703, it may also directly extend from the connecting member 7, so as to simplify the winding path of the winding section 207.

It will be appreciated that, referring to fig. 6 to 13, at least one of the first threading portion 701, the second threading portion 702, the third threading portion 703 and the fourth threading portion 704 has a groove structure recessed inward along the edge of the connecting member 7, so that the winding section 207 can conveniently enter the threading portion from the opening of the groove, and the threading operation is more convenient.

Alternatively, at least one of the first threading portion 701, the second threading portion 702, the third threading portion 703 and the fourth threading portion 704 is a through hole, so that the winding section 207 is prevented from slipping out of the threading portions.

The above-described flexible cord winding method is not limited to the structural form of the connector 7, and the connector 7 may have the first threading part 701, the second threading part 702, and the third threading part 703, and the relative positional relationship of the first threading part 701, the second threading part 702, and the third threading part 703 is not limited.

The structure of the connector 7 will be described below. The flexible cord 2 may be wound around the connecting member 7 described below by, but not limited to, the above-described flexible cord winding method.

In the embodiment of the second aspect of the present invention, as shown in fig. 6 to 13, there is provided a connector 7 configured with at least one winding portion configured with a first threading portion 701, a second threading portion 702, and a third threading portion 703 for winding a flexible cord 2, and the connection lines of the first threading portion 701, the second threading portion 702, and the third threading portion 703 form a triangle.

When the winding section 207 of the flexible cable 2 penetrates into the first threading part 701, the second threading part 702 and the third threading part 703, the winding path of the winding section 207 on the connecting piece 7 forms a triangular path, the winding section 207 is more stable to be fixed on the connecting piece 7, the winding section 207 is prevented from loosening, the structure is simple, the adjustment is convenient, and the winding section 207 is easier to replace and tension in a winding fixing mode.

The winding order of the winding section 207 in the first threading part 701, the second threading part 702, and the third threading part 703 may be set as needed. The winding part comprises all structures fixedly connected with the primary flexible cable 2, namely a solid structure wound by the flexible cable 2 and comprises a first threading part 701, a second threading part 702 and a third threading part 703. The connecting piece 7 is provided with at least one winding part, namely, the connecting piece 7 winds at least one end of one flexible cable 2; when a plurality of winding parts are provided, the connecting piece 7 can be used for winding a plurality of wires 2 or different ends of the wires 2, and the connecting piece can be selected according to the needs. As shown in fig. 6 to 13, a scheme in which the connection member 7 is provided with two winding portions is illustrated.

The connecting member 7 of the present embodiment is exemplified by the flexible cable winding method in the foregoing embodiment, in which the fixing section 206 and the winding section 207 of the flexible cable 2 are fixed to the connecting member 7 by winding, and the length of the transmission portion of the entire flexible cable 2 can be tightened by increasing the length of at least one of the fixing section 206 and the winding section 207, so that the flexible cable 2 introduced into the transmission portion becomes shorter, and a tensile force is applied to the transmission portion, so that the flexible cable 2 does not come loose from the connecting member 7.

It can be understood that, as shown in fig. 6 to 9, the winding portion is further configured with a fourth threading portion 704, and a third threading portion 703 is disposed between the fourth threading portion 704 and the second threading portion 702, and the connecting piece 7 is additionally provided with the fourth threading portion 704, so that the winding mode of the flexible cable 2 can be increased, and the winding mode of the flexible cable 2 is more flexible, and the fixing mode of the flexible cable 2 is more various, for example, the winding is performed by adopting the flexible cable winding method.

Alternatively, a second threading part 702 (not shown) is provided between the fourth threading part 704 and the third threading part 703, and the fourth threading part 704 is flexibly positioned.

The positional relationship between the fourth threading portion 704, the third threading portion 703 and the second threading portion 702 is not limited to a linear arrangement, and the connection line between the fourth threading portion 704, the second threading portion 702 and the first threading portion 701 forms a triangle, and the connection line between the fourth threading portion 704, the third threading portion 703 and the first threading portion 701 forms a triangle. Of course, as shown in fig. 6 to 9, the fourth threading part 704, the third threading part 703 and the second threading part 702 are arranged along a straight line, so that the processing and the winding of the flexible cable 2 are facilitated.

As can be appreciated, as shown in fig. 12 and 13, the wire winding portion is connected with a protrusion 707 for blocking the flexible cable 2, and the protrusion 707 protrudes to one side of the wire winding portion so that the flexible cable 2 is limited to one side of the protrusion 707.

The protrusion 707 protrudes toward at least one of the first side and the second side of the winding portion, so that the flexible cable 2 located on the first side or the second side is limited to one side of the protrusion 707, and the flexible cable 2 can be guided to extend out of the connecting piece 7 along the extending direction of the protrusion 707, thereby protecting and guiding the flexible cable 2.

Wherein, one side of the protrusion 707 may be understood that, along the protrusion direction of the protrusion 707, one of the left and right sides of the protrusion 707, as shown in fig. 12, may be limited to the left side of the protrusion 707 by the flexible cable 2.

The protrusion 707 may be a bump protruding on the surface of the connecting piece 7, or the protrusion 707 may be formed by folding an edge of the connecting piece 7 toward one side (the first side or the second side), where the structure of the protrusion 707 is various, and may be specifically set as required.

It will be appreciated that, as shown in fig. 6 to 13, at least one of the first threading portion 701, the second threading portion 702 and the third threading portion 703 is a groove structure recessed inward along the edge of the connecting member 7, so that the winding section 207 can conveniently enter the threading portion from the opening of the groove, and the threading operation is more convenient.

The groove structure is formed by recessing inwards from the edge of the connecting piece 7 and is provided with an opening, and the flexible cable 2 can be wound on the connecting piece 7 through the opening according to the illustrated sequence. The openings of the first threading part 701, the second threading part 702 and the third threading part 703 may be located at the same side or different sides of the connection member 7, and the orientation of the openings is not limited, as shown in fig. 6 to 10, and the openings of the first threading part 701, the second threading part 702 and the third threading part 703 are oriented to different sides of the connection member 7; as shown in fig. 11 and 12, the openings of the first threading part 701, the second threading part 702, and the third threading part 703 face the same side of the connector 7.

Alternatively, at least one of the first threading portion 701, the second threading portion 702, and the third threading portion 703 is a through hole (not illustrated), so that the winding section 207 is prevented from slipping out of the threading portion.

It can be understood that, as shown in fig. 6 to 13, the first threading portion 701, the second threading portion 702 and the third threading portion 703 are all in a groove structure, and an opening of at least one groove structure is dislocated with an area of the groove structure for winding the flexible cable 2, so that the flexible cable 2 is prevented from sliding out from the opening, and winding stability of the flexible cable 2 at the connecting piece 7 is ensured.

The opening of the groove structure is offset from the area of the groove structure for winding the flexible cable 2, and it is understood that the opening is not linearly penetrated with the area of the winding the flexible cable 2, and the structure of the winding part can play a role of blocking the flexible cable 2.

As shown in fig. 6 to 9, the openings of the third threading part and the fourth threading part are staggered with the area where the flexible cable 2 is wound, and the first threading part and the second threading part are directly penetrated; as shown in fig. 10, the opening of the second threading part is offset from the area around which the flexible cord 2 is wound, and the first threading part 701 and the third threading part 703 are both directly penetrated; as shown in fig. 12, the openings of the second threading part and the third threading part are staggered with the area around which the flexible cable 2 is wound, and the first threading part is directly penetrated; as shown in fig. 13, the openings of the first threading part 701, the second threading part 702 and the third threading part 703 are all offset from the area where the flexible cord 2 is wound.

The area of the opening can be used for the flexible cable 2 to pass through, the space inside the groove structure can be wound for at least one time with the flexible cable 2, and the space inside the groove structure is larger than the opening, so that the space inside the groove structure can be wound for a plurality of times with the flexible cable 2, and the flexible cable 2 can be prevented from slipping from the opening.

It can be understood that adjacent threading portions of adjacent winding portions are communicated, winding space of the threading portions communicated is larger, winding of the flexible wire 2 is facilitated, the threading portions communicated share one opening, the number of openings of the connecting piece 7 can be reduced, and the winding device is simple in structure and further beneficial to guaranteeing structural strength of the connecting piece 7.

As shown in fig. 6 to 9, two adjacent fourth threading portions 704 are communicated and share one opening; as shown in fig. 10, two adjacent second threading portions 702 are communicated and share one opening; as shown in fig. 11 to 13, two adjacent third threading portions 703 communicate with each other and share one opening.

It can be understood that the winding parts are a first winding part 705 and a second winding part 706, and the first winding part 705 and the second winding part 706 are symmetrically arranged at two sides of the preset axis, so that the stress of the connecting piece 7 at two sides of the preset axis is more balanced.

Wherein the preset axis may be, but is not limited to, the symmetry axis of the connection piece 7.

The first winding portion 705 may be used to wind one end of the flexible cord 2, and the second winding portion 706 may be used to wind the other end of the flexible cord 2, such that the flexible cord 2 has a loop structure. Alternatively, the first winding portion 705 is used for winding one end of the first flexible cord 2, the second winding portion 706 is used for winding one end of the second flexible cord 2, the other end of the first flexible cord 2 can be fixed by other connectors 7 or other structures, and the other end of the second flexible cord 2 can also be fixed by other connectors 7 or other structures.

The connecting piece 7 in the above embodiment can be used for winding the flexible cable 2, so that the flexible cable 2 is fixed on the connecting piece 7 in a winding manner, the disassembly, assembly and tensioning adjustment of the flexible cable 2 are convenient, the connecting piece 7 is simple in structure, small in size and low in cost, and is easy to replace, and the connecting piece 7 can be applied to various occasions requiring winding of the flexible cable 2.

In order to ensure the tensioning of the flexible cable 2 between the pulley and the swivel wheel 1, the linear drive also comprises a tensioning mechanism. The tensioning mechanism may be a ratchet wheel (corresponding to a first wheel body and a second wheel body described below) and a pawl (corresponding to a first claw and a second claw described below), where the ratchet wheel and the pawl are located at the position of the connecting piece 7 of the primary sliding rail 4, and replace the structure of the connecting piece 7, and the first flexible cable segment 201 and the second flexible cable segment 202 are respectively connected to a set of ratchet wheel and pawl, and the tensioning degree of the first flexible cable segment 201 and the second flexible cable segment 202 is respectively adjusted by matching the ratchet wheel and the pawl. The ends of the first flex cable segments 201 are secured to corresponding ratchets and similarly the ends of the second flex cable segments 202 are secured to corresponding ratchets. Of course, in order to ensure tensioning of the flexible cord 2, other tensioning structures, such as tensioning wheels, may also be provided at other locations along the extension of the flexible cord 2.

The tensioning mechanism can be divided into a first tensioning mechanism and a second tensioning mechanism, the first tensioning mechanism is used for tensioning the first flexible cable section, the second tensioning mechanism is used for tensioning the second flexible cable section, the first tensioning mechanism and the second tensioning mechanism can be the same or different, and the first tensioning mechanism and the second tensioning mechanism are the same in structure as shown in fig. 14-16. In the following, the first tensioning mechanism will be described as an example,

it will be appreciated that referring to fig. 14 to 16, the first tensioning mechanism comprises a first wheel 510 and a first jaw 520, the first wheel 510 being adapted to move in a first direction and being connected to the first cable segment 201 such that the first cable segment 201 moves with the first wheel 510, one end of the first jaw 520 being limited to the first wheel 510 to stop the first wheel 510 in a second direction, the other end of the first jaw 520 being connected to the primary track 4, the first direction being opposite to the second direction. The movement of the first wheel body 510 along the first direction can be that the first wheel body 510 rotates or moves relative to the first-stage sliding rail 4, the first direction can be a rotation direction or a movement direction, the first flexible cable section 201 moves relative to the first-stage sliding rail 4 along with the first wheel body 510, the tensioning degree of the first flexible cable section 201 can be adjusted through rotation coiling or movement tensioning, and the structure is simple and the operation is simple and convenient. The first claw 520 plays a role in limiting and stopping the first wheel body 510 along the second direction, the first claw 520 can play a role in preventing the first wheel body 510 from rotating or moving along the second direction so as to ensure that the first flexible cable section 201 can be tensioned without loosening, the first wheel body 510 and the first claw 520 are matched in a simple mode, the operation is simple and convenient, and the tensioning effect is good.

One end of the first claw 520 is clamped and limited with the first wheel body 510, and the other end is fixed with the first-stage sliding rail 4. When the first wheel 510 is rotatably connected to the first stage slide rail 4, the first direction is counterclockwise, the second direction is clockwise, and the first pawl 520 prevents the first wheel 510 from rotating clockwise.

It can be appreciated that the first wheel 510 is adapted to rotate along the first direction, the first groove 511 is disposed on the inner or outer periphery of the first wheel 510, the first claw 520 is limited to the first groove 511, that is, the first claw 520 is limited to the outer or inner ring of the first wheel 510, and the position of the first claw 520 is flexible. The end portion of the first flexible cable segment 201 is suitable for being wound on the first wheel body 510, and the first flexible cable segment 201 is wound on the first wheel body 510 in the process that the first wheel body 510 rotates along the first direction, so as to play a role in tensioning the first flexible cable segment 201. The first wheel body 510 rotates relative to the first-stage sliding rail 4, so that the tensioning of the first flexible cable section 201 is realized, the structure is simple, and the adjustment is simple and convenient, and the disassembly and the assembly are convenient.

Along with the rotation of the first wheel 510, the first claw 520 may be switched from one first groove 511 to another first groove 511 under the action of its elastic deformation, or the first claw 520 may be switched from one first groove 511 to another first groove 511 under the action of an external force, such as the tension of a spring. When one end of the first claw 520 is limited to the first groove 511, the other end of the first claw 520 is fixed to the primary slide rail 4, the first claw 520 may be further provided with a first rotating portion rotatably connected to the primary slide rail 4, and when the position of the one end of the first claw 520 is adjusted, the first rotating portion supports the first claw 520.

The first wheel 510 rotates relative to the first stage slide rail 4, and may be realized by a rotation driving tool, for example, the first wheel 510 is provided with a first mounting hole 517 for mounting the rotation driving tool, and the rotation driving tool is mounted in the first mounting hole 517, so that the first wheel 510 may be adjusted in a rotating manner, and the first wheel 510 and the first stage slide rail 4 remain fixed without providing a rotation driving force by the rotation driving tool. The rotary driving tool may be a wrench. Of course, the first wheel 510 is not limited to being driven to rotate by the rotation driving tool, the first wheel 510 may also be driven by a rotation motor, when the first flexible cable segment 201 needs to be tensioned, the rotation motor drives the first wheel 510 to rotate along the first direction, and when the first flexible cable segment 201 does not need to be adjusted, the rotation motor can also prevent the first wheel 510 from rotating.

It may be appreciated that, referring to fig. 15 to 16, the first wheel body 510 includes a first connecting portion 512, a first winding portion 513 and a first blocking portion 514, the first connecting portion 512 is connected to the primary slide rail 4, the first winding portion 513 is located between the first connecting portion 512 and the first blocking portion 514, the first winding portion 513 is used for winding the first flexible cable segment 201, and the first flexible cable segment 201 is limited at a side of the first blocking portion 514 facing the first winding portion 513. The first separation blocking part 514 is located at one side of the first winding part 513 far away from the first stage slide rail 4, the first flexible cable section 201 is limited between the first stage slide rail 4 and the first separation blocking part 514, the first flexible cable section 201 is prevented from being separated from the first wheel body 510, and the first flexible cable section 201 is ensured to be stably wound on the first wheel body 510, so that the first flexible cable section 201 is ensured to be stably kept in a tensioning state.

As shown in fig. 15 and 16, the first connecting portion 512 is rotatably connected to the primary slide rail 4, and along the direction of the rotation axis of the first wheel body 510, a first connecting portion 512, a first winding portion 513 and a first blocking portion 514 are provided, and the first groove 511 may be disposed between the first connecting portion 512 and the first blocking portion 514, or the first groove 511 may be located at an inner periphery corresponding to at least one of the first connecting portion 512, the first winding portion 513 and the first blocking portion 514, and the position of the first groove 511 is flexible and various, and may be selected according to needs. The first winding portion 513 may have a cylindrical structure, such as a cylinder, a prism, etc., and may be used for winding the first cord segment 201. The first blocking portion 514 protrudes relative to the first winding portion 513 in a direction perpendicular to the rotation axis of the first wheel body 510, and the first blocking portion 514 may also be understood as a flange of the first winding portion 513 to block the first flexible cord segment 201 on the first winding portion 513, for example, the first blocking portion 514 has a disc-shaped structure with a diameter larger than that of the first winding portion 513.

It may be appreciated that, as shown in fig. 15 and 16, the first wheel body 510 includes a first clamping portion 515, the first clamping portion 515 is located between the first connecting portion 512 and the first separating portion 514, the outer periphery of the first clamping portion 515 is provided with the first groove 511, the first clamping portion 515 is located at the outer periphery of the first wheel body 510, the first clamping portion 515 may be located between the first winding portion 513 and the first separating portion 514, or the first clamping portion 515 may also be located between the first winding portion 513 and the first connecting portion 512, which may be selected as needed. The first clamping portion 515 is a part of the first wheel body 510, so that the first claw 520 is located at any position of the outer periphery of the first clamping portion 515, and the position of the first claw 520 is more flexible and convenient to disassemble and assemble.

As shown in fig. 15, the first clamping portion 515 is located between the first winding portion 513 and the first connecting portion 512, facilitating the installation of the first claw 520. At this time, the first mounting hole 517 may be formed on the inner periphery of the first wheel 510, so that the structure of the first wheel 510 is more compact, which is conducive to miniaturization of the linear motion mechanism.

It can be appreciated that, as shown in fig. 16, the first wheel body 510 is provided with a first wire clamping groove 516, the end portion of the first flexible cable section 201 is limited in the first wire clamping groove 516, the connection between the first flexible cable section 201 and the first wheel body 510 is realized through the first wire clamping groove 516, the connection mode is simple, the disassembly and assembly of the first flexible cable section 201 are convenient, and the stable connection between the first flexible cable section 201 and the first wheel body 510 can be ensured.

It can be appreciated that the first slot 516 includes a first slot 5161 and a second slot 5162 that are connected, the first slot 5161 is located at the first blocking portion 514, the second slot 5162 is located at the first winding portion 513, a local position of the second slot 5162 corresponds to and is connected with the first slot 5161, another portion of the second slot 5162 is dislocated with the first slot 5161, the first slot 5161 is a slot body formed by recessing inwards along an edge of the first blocking portion 514, the structure is simple, and the first flexible cable section 201 is convenient to enter the second slot 5162 to prevent the first flexible cable section 201 from being separated from the first slot, and the structure is simple and convenient for the first flexible cable section 201 to be disassembled from the first wheel body 510.

The first wheel body 510 and the first claw 520 of the first tensioning mechanism can be directly connected to the first-stage slide rail 4, and the first tensioning mechanism has a simple structure and a small number of parts; or, first wheel body 510 and first jack catch 520 can also be connected in one-level slide rail 4 through connecting plate 550, and first straining device's wholeness is stronger, can holistic dismouting in one-level slide rail 4, and the dismouting is simple and convenient.

As shown in fig. 14 to 16, the second tensioning mechanism includes a second wheel 530 and a second jaw 540, the second wheel 530 has the same structure as the first wheel 510, and the second jaw 540 has the same structure as the first jaw 520, which is described above. The second tensioning mechanism and the first tensioning mechanism may be secured to a connection plate 550.

An embodiment of the second aspect of the present invention, as shown in fig. 1 to 17, provides a drawer assembly, which includes a drawer body 12 and a linear transmission mechanism in the above embodiment, where the linear transmission mechanism is connected to at least one side of the drawer body 12, so as to provide power for extending and retracting the drawer body 12 through the linear transmission mechanism, so as to facilitate telescopic adjustment of the drawer body 12. The above-mentioned linear transmission mechanism has the above-mentioned beneficial effects, and the drawer assembly has the above-mentioned beneficial effects, and the details can be seen, and details are not repeated here.

In some cases, the primary slide rail 4 is provided with a mounting portion 401, and the mounting portion 401 is connected to the drawer body 12. The connection mode of the mounting portion 401 and the drawer body 12 may be a detachable mode or a fixed mode, such as fastening connection, welding, etc., and may be specifically selected according to requirements.

It will be appreciated that, referring to fig. 17, a linear transmission mechanism is disposed below the drawer body 12, and the primary slide rail 4, the secondary slide rail 5 and the mounting member 3 are all located below the drawer body 12, so that the linear transmission mechanism and the drawer body 12 are convenient to disassemble and assemble, and the space occupied by the linear transmission mechanism can be reduced.

One or more linear drives may be provided under the drawer body 12, the number of which may be selected as desired.

Referring to fig. 17, the rotary wheel 1 and the rotary driving member 13 are positioned at the rear of the drawer body 12, so that the drawer body 12 is convenient to install, the rotary wheel 1 and the rotary driving member 13 do not occupy the space on the left and right sides of the drawer body 12, and sufficient installation and storage space can be provided for the drawer body 12.

Of course, the linear transmission mechanism may also be disposed on the left side, the right side, the rear side, or the like of the drawer body 12, and may be specifically selected as needed.

When the linear transmission mechanisms are arranged on the same side of the drawer body 12, two or more groups of linear transmission mechanisms can be connected through a synchronous transmission structure, and one rotary driving piece 13 can drive the rotary wheels 1 to rotate through the synchronous transmission structure, so that synchronous movement of the linear transmission mechanisms is realized, and the structure is simplified. The synchronous transmission structure can be a synchronous shaft, a synchronous belt component and the like.

When the drawer assembly is installed in the refrigerator, the drawer body 12 is located at the bottom of the refrigerator freezer compartment.

In order to facilitate taking and placing things in the drawer body 12, the drawer body 12 is mounted on a refrigerator liner through a linear transmission mechanism. In fig. 17, the linear transmission mechanism is located at the bottom of the drawer body 12, the rear end of the mounting member 3 is provided with the rotating wheel 1 and the rotating driving member 13, the primary sliding rail 4 is located above the secondary sliding rail 5, the secondary sliding rail 5 is located above the mounting member 3, and the connecting member 7 of the primary sliding rail 4 is connected with the drawer body 12. One or more sets of linear drives may be provided below the drawer body 12. The linear transmission mechanism only occupies the space on one side of the drawer body 12, the space occupied by the linear transmission mechanism is reduced, and the linear transmission mechanism can provide a larger space for the drawer body 12 in a locker with the same volume, thereby being beneficial to lifting the storage space of the locker.

Wherein, form the spout of second grade slide rail 5 between guide rail 301 and the installed part 3, and then when the relative installed part 3 motion of second grade slide rail 5, can guarantee the structural strength and the stability of operation of second grade slide rail 5.

When the sliding rail is in a contracted state, the drawer body 12 is recovered into the cabinet 14; when the slide rail is in the extended state, the drawer body 12 extends out of the cabinet 14, and the primary slide rail 4 and the secondary slide rail 5 can be in respective limit positions, so that the drawer body 12 extends out by a maximum distance. Alternatively, only the primary slide rail 4 is in the extreme position, or alternatively, the primary slide rail 4 is only partially extended and the secondary slide rail 5 is in the original position. The states of the primary slide rail 4 and the secondary slide rail 5 can be selected according to the conditions, so that the position of the drawer body 12 can be adjusted.

In the case of being provided with a set of linear drive mechanism, with second grade slide rail 5 corresponding at the middle part of drawer body 12 setting to guarantee that the mounting panel atress is even. And the primary slide rail 4 is correspondingly arranged at the middle position of the drawer body 12.

An embodiment of a third aspect of the present invention, as shown in connection with fig. 1 to 17, provides a locker, comprising: the linear drive mechanism of the above embodiment, or the drawer assembly of the above embodiment. The cabinet body 14 of the storage cabinet is connected to the linear transmission mechanism in the above embodiment, and the linear transmission mechanism has the above beneficial effects, so that the storage cabinet has the above beneficial effects, and reference may be made to the above for details, which are not repeated here.

The cabinet 14 is connected to the drawer body 12 by a linear drive mechanism, or the cabinet 14 is connected to a shelf or other receiving structure that is linearly movable by a linear drive mechanism.

The linear transmission mechanism can drive the drawer body 12 or the accommodating structure to automatically move so as to take and put articles in the storage cabinet. In addition, the linear transmission mechanism occupies a small space and has a simple structure, and therefore, the linear transmission mechanism hardly occupies the space inside the cabinet 14 additionally. In addition, the linear transmission mechanism is low in preparation cost, convenient to assemble and disassemble, and high in applicability, and can be applied to various products such as refrigerators, wardrobes and showcases.

The mounting member 3 may be an independent component detachably mounted on the cabinet 14, and the mounting member 3 may be integrally formed on the cabinet 14.

According to the locker of the embodiment of the invention, the rotary wheel 1 and the rotary driving member 13 are installed at the inner side of the locker. Wherein, can produce certain noise when rotatory wheel 1 and rotary drive spare 13 move, through installing rotatory wheel 1 and rotary drive spare 13 in the inboard of locker, can reduce the noise of outgoing in the locker. The inner side of the locker refers to the side far away from the door body, and the side close to the door body refers to the outer side of the locker. In use, the "inside of the locker" is the side farther from the user. For example, in fig. 17, the rotary wheel 1 and the rotary driving member 13 are located at the rear side of the mounting member 3, so that noise of the locker in use can be reduced, and the door body of the locker is opened without affecting the beauty.

According to the locker of the embodiment of the invention, the locker is a refrigerator, a retail cabinet or a showcase, and the specific form of the locker is not limited by the example. When the storage cabinet is a refrigerator, the refrigerator is often provided with the freezing drawer assembly at the bottom, and the problem that a user cannot conveniently draw the drawer body 12 and cannot conveniently take and put food from the freezing drawer assembly can be solved by the linear transmission mechanism.

According to an embodiment of the invention, the automatic movement of the linear drive can be controlled by providing a corresponding switch or sensor. For example, a switch is provided on the linear drive mechanism or the locker, and the switch is pressed to control the movement (ascending or descending) of the primary slide rail 4. For another example, a sensor is arranged in the storage cabinet, and when the sensor senses corresponding actions, such as approaching of hands, a signal is generated to control the first-stage sliding rail 4 to extend or retract, and further control the drawer body 12 to extend or retract, or control the shelf to lift.

Taking a refrigerator as an example, an inductor can be arranged at a corresponding position of the refrigerator, and when corresponding operation is continuously sensed, the rotary driving piece 13 continuously acts, so that the drawer body 12 or the shelf of the refrigerator gradually moves forward. When the corresponding operation is lost, the rotary drive 13 is no longer active, and the drawer body 12 or the shelf is stopped in the current position. For example, a pressing sensor is disposed on the drawer body 12, the door body or the container, and the rotary driving member 13 continuously drives the rotary wheel 1 to rotate when being pressed, so as to drive the drawer body 12 or the shelf to move reversely. For another example, the pressing sensor may be replaced with an infrared sensor or other type of sensor. When the drawer body 12 or the shelf is required to be lowered, continuous sensing is not required, and only one operation is required to realize the reverse movement of the drawer body 12 or the shelf. Of course, the rotary driving member 13 may also be controlled based on sound signals, for example, based on sound information such as "extending drawer" or "retracting drawer", and based on sound information such as "raising shelf" or "lowering shelf", so that state switching of the drawer body 12 or shelf can be achieved.

The motion control of the linear transmission mechanism can also be realized through other signal inputs. For example, the locker may be adapted to a corresponding remote control comprising operating buttons for extension or retraction. Further, the telescoping control of the first-stage slide rail 4 can be realized based on the buttons of the remote controller. Or, the corresponding buttons can be arranged on the door body of the storage cabinet, so that the lifting control of the lifting device can be realized before the door is opened. For another example, the control of the linear transmission mechanism of the refrigerator can also be realized through the mobile phone APP.

The above embodiments are only for illustrating the present invention, and are not limiting of the present invention. While the invention has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and it is intended to be covered by the scope of the claims of the present invention.

Claims

1. A linear drive mechanism, comprising:

2. The linear drive mechanism of claim 1, further comprising at least one of a first adjustment member and a second adjustment member, the first adjustment member being positioned on a path of the first flex cable segment from the rotating wheel to the primary slide, the first flex cable segment extending about the first adjustment member toward the primary slide; and/or the second adjusting piece is positioned on a path between the second flexible rope section and the fixed pulley from the rotating wheel, and the second flexible rope section is wound on the second adjusting piece and extends towards the fixed pulley.

3. The linear drive mechanism of claim 2, wherein at least one of the first and second adjustment members includes a shaft and a wheel, the shaft being coupled to the mounting member, the wheel being rotatably coupled to the mounting member by the shaft, the first or second cord segment bypassing the wheel toward a side of the mounting member.

4. The linear drive mechanism according to claim 1, wherein the primary slide is provided with a connecting member configured with at least one winding portion configured with a first threading portion, a second threading portion and a third threading portion for winding at least one of the first and second cord segments, and connecting lines of the first, second and third threading portions form a triangle.

5. The linear drive mechanism of claim 1, wherein the primary slide is coupled to a tensioning mechanism, the tensioning mechanism comprising a first wheel and a first jaw, the first wheel being adapted to move in a first direction and to couple the first cable segment such that the first cable segment moves with the first wheel, one end of the first jaw being limited to the first wheel to stop the first wheel in a second direction, the other end of the first jaw being coupled to the primary slide, the first direction being opposite the second direction;

6. The linear drive of claim 1, wherein the rotary wheel and the rotary drive are located at one end of the primary slide in the sliding direction.

7. The linear drive of claim 1, wherein the rotary wheel and the rotary drive are located outside of the mount.

8. The linear drive mechanism according to any one of claims 1 to 7, wherein a plurality of intermediate slide rails are provided between the primary slide rail and the guide rail, the primary slide rail being mounted to the guide rail via the intermediate slide rails; the middle sliding rail is provided with a movable pulley, and the flexible rope sequentially bypasses the fixed pulley and the movable pulley.

9. The linear drive mechanism of claim 8, wherein the intermediate rail comprises a secondary rail, a first guide portion and a second guide portion are disposed on a side of the secondary rail facing the primary rail, the first guide portion is slidably connected to the rail, the second guide portion is slidably connected to the primary rail, and the rail and the primary rail are disposed in parallel on the secondary rail.

10. A drawer assembly comprising a drawer body and the linear drive of any one of claims 1 to 9, the linear drive being connected to at least one side of the drawer body.

11. The drawer assembly of claim 10, wherein the linear drive is disposed below the drawer body, and the rotary wheel and the rotary drive are located behind the drawer body.

12. A locker comprising a cabinet and further comprising a linear drive mechanism as claimed in any one of claims 1 to 9 or a drawer assembly as claimed in claim 10 or 11, the mounting being connected to the cabinet.