CN218164628U - Adjusting mechanism for drawer slide rail and drawer assembly - Google Patents

Adjusting mechanism for drawer slide rail and drawer assembly Download PDF

Info

Publication number
CN218164628U
CN218164628U CN202221627144.6U CN202221627144U CN218164628U CN 218164628 U CN218164628 U CN 218164628U CN 202221627144 U CN202221627144 U CN 202221627144U CN 218164628 U CN218164628 U CN 218164628U
Authority
CN
China
Prior art keywords
drawer
adjusting
movable
upper rail
rail
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202221627144.6U
Other languages
Chinese (zh)
Inventor
陈解元
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Tute Precision Hardware Technology Co ltd
Original Assignee
Guangdong Tutti Household Science & Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Guangdong Tutti Household Science & Technology Co ltd filed Critical Guangdong Tutti Household Science & Technology Co ltd
Priority to CN202221627144.6U priority Critical patent/CN218164628U/en
Application granted granted Critical
Publication of CN218164628U publication Critical patent/CN218164628U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Drawers Of Furniture (AREA)

Abstract

The utility model discloses an adjustment mechanism for drawer slide rail, including wearing to establish moving part on the upper rail, setting in one side of moving part and the connecting piece that is connected with the drawer and setting up the adjusting device at the moving part opposite side, this adjusting device includes first regulating part at least, through instrument or this first regulating part of manual regulation, can drive the moving part and move relatively on the rail to realize the regulation of position about the drawer. The utility model discloses an adjustment mechanism, when position about the drawer is adjusted to needs, at first pull out the drawer, through adjusting this first regulating part afterwards, can drive the moving part and move about relatively going up the rail, because one side of this moving part is equipped with the connecting piece that is connected with the drawer, so can drive the drawer and move about relatively going up the rail simultaneously to realize adjusting the position about the drawer, and then realize adjusting the interval between the drawer left and right sides and the cabinet body wallboard, make whole vision more pleasing to the eye. In addition, the utility model discloses still provide the drawer subassembly that has this adjustment mechanism.

Description

Adjusting mechanism for drawer slide rail and drawer assembly
Technical Field
The utility model relates to a drawer five metals technical field, concretely relates to adjustment mechanism and drawer subassembly for drawer slide rail.
Background
The drawer slide typically includes a first rail mounted to the drawer and a second rail mounted to the cabinet, respectively, the first rail being slidably disposed on the second rail to enable the drawer to slide relative to the cabinet. At present, most drawers are assembled, and then the positions of the drawers cannot be adjusted, so that the distance between the drawers and the wall plate of the cabinet body cannot be adjusted, and the overall attractiveness is reduced.
In addition, also there are some commercial companies through set up adjustment mechanism in order being used for adjusting the drawer position on the drawer subassembly, but most all need adopt the instrument to adjust, and it is not only comparatively troublesome to adopt outside instrument to adjust, and has certain space limitation, when the drawer position that needs to adjust nearest ground, then can't adopt outside instrument to adjust, and is comparatively troublesome.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides an adjusting mechanism and a drawer component for a drawer slide rail, which can drive the drawer to move relatively to the upper rail under the action of the adjusting mechanism, thereby realizing the adjustment of the position of the drawer.
The utility model discloses a solve the technical scheme that its problem adopted and be:
an adjustment mechanism for a drawer slide, comprising:
the moving piece is used for penetrating the upper rail;
the connecting piece is arranged on one side of the movable piece and is used for being connected with the drawer;
the adjusting device is arranged on the other side of the moving part and at least comprises a first adjusting piece, and the first adjusting piece is adjusted through a tool or manually, so that the moving part can be driven to move relative to the upper rail, and the left and right positions of the drawer can be adjusted.
The utility model discloses an adjustment mechanism when position about needs adjustment drawer, at first pulls out the drawer, through adjusting this first regulating part afterwards, can drive the moving part and move about relatively getting up the rail, because one side of this moving part is equipped with the connecting piece that is connected with the drawer, so can drive the drawer and move about relatively getting up the rail simultaneously to realize adjusting the position about the drawer, and then realize the interval between adjustment drawer left and right sides and the cabinet body wallboard, make whole vision more pleasing to the eye. In addition, the adjustment mode can be manually adjusted, so that an external tool is not needed, the adjustment is more convenient and quicker, no space limitation is caused, and the adjustment on the position of the drawer closest to the ground can be realized.
Further, the first adjusting piece comprises a first fixed part connected with the upper rail and a first movable part arranged on the first fixed part and movable relative to the first fixed part; through adjusting first movable part, can make it move relatively first fixed part, and then drive the moving part removes.
Furthermore, the first fixed part is a first adjusting bolt with one end fixedly connected to the upper rail, and the first movable part is a first adjusting nut which is sleeved on the first adjusting bolt and is in threaded fit with the first adjusting bolt.
Furthermore, the adjusting device further comprises at least one transmission piece arranged between the moving piece and the first adjusting piece, and the transmission piece can be driven to move by adjusting the first adjusting piece so as to drive the moving piece to move.
Furthermore, the transmission part is a shifting fork, one end of the transmission part is clamped on the first adjusting part to realize transmission connection, and the other end of the transmission part is connected with the movable part.
Furthermore, the connecting piece is a second adjusting piece and comprises a second fixed part connected with the moving piece and a second movable part which is arranged on the second fixed part and can move relative to the second fixed part; the second movable part can move relative to the second fixed part by adjusting the second movable part, so that the height position of the drawer can be adjusted.
Therefore, when the height position of the drawer needs to be adjusted, the drawer is pulled out firstly, and then the drawer can be driven to move up and down relative to the upper rail by adjusting the second adjusting piece, so that the height position of the drawer can be adjusted.
Furthermore, the second fixed part is a second adjusting bolt with one end fixedly connected to the moving part, and the second movable part is a second adjusting nut which is sleeved on the second adjusting bolt and is in threaded fit with the second adjusting bolt.
Furthermore, the moving part is a movable plate which is arranged on the upper rail in a penetrating mode and extends out of the upper rail from two sides, and the connecting part and the adjusting device are arranged on two sides of the movable plate respectively and located on the outer side of the upper rail.
In addition, the utility model also provides a drawer assembly, including last rail, drawer and above-mentioned adjustment mechanism.
Further, still including passing in proper order the upper rail and the moving part and fixed fastener, seted up on the upper rail with fastener matched with spacing groove.
To sum up, the utility model discloses an adjustment mechanism and drawer subassembly for drawer slide rail has following beneficial effect:
(1) The utility model discloses an adjustment mechanism, when position about the drawer is adjusted to needs, at first pull out the drawer, through adjusting this first regulating part afterwards, can drive the moving part and move about relatively going up the rail, because one side of this moving part is equipped with the connecting piece that is connected with the drawer, so can drive the drawer and move about relatively going up the rail simultaneously to realize adjusting the position about the drawer, and then realize adjusting the interval between the drawer left and right sides and the cabinet body wallboard, make whole vision more pleasing to the eye. In addition, the adjusting mode can be manually adjusted, so that an external tool is not needed, the adjustment is more convenient and quicker, no space limitation exists, and the adjustment of the position of the drawer closest to the ground can be realized.
(2) The utility model discloses an adjustment mechanism when drawer high position is adjusted to needs, at first pulls out the drawer, through adjusting this second regulating part afterwards, can drive this drawer and move up and down relatively the rail to realize adjusting the high position of drawer.
Drawings
Fig. 1 is an exploded view of the adjusting mechanism of the present invention;
FIG. 2 is a schematic structural diagram of the adjusting mechanism of the present invention;
FIG. 3 is an exploded view of a portion of the structure of the drawer assembly of the present invention;
FIG. 4 is a schematic view of a portion of the drawer assembly of the present invention;
FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;
FIG. 6 is a schematic view of the adjustment mechanism of the drawer assembly of the present invention in another extreme position;
fig. 7 is a schematic structural view of the drawer assembly of the present invention.
Wherein the reference numerals have the following meanings:
1. an adjustment mechanism; 11. a movable member; 111. a first mounting groove; 112. avoiding holes; 113. a second mounting hole; 114. a first mounting hole; 12. a connecting member; 121. a second fixed part; 122. a second movable portion; 13. an adjustment device; 131. a transmission member; 1311. a card slot; 1312. a boss; 1313. a third mounting hole; 132. a first adjustment member; 1321. a first fixed part; 1322. a first movable portion; 14. a first fastener; 2. rail mounting; 21. a limiting groove; 22. a second mounting groove; 23. an opening; 24. a fourth mounting hole; 3. a second fastener; 4. a drawer.
Detailed Description
For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Example one
Referring to fig. 1-2, the present invention first provides an adjusting mechanism 1 for a drawer slide rail, which includes a movable member 11, and a connecting member 12 and an adjusting device 13 respectively disposed on the left and right sides of the movable member 11. Specifically, the movable member 11 is a movable plate horizontally disposed on the upper rail 2 and both sides of the movable member extend out of the upper rail 2. The movable plate is horizontally arranged, one side of the movable plate is provided with an L-shaped bent part, and the connecting piece 12 is arranged on the bent part and is used for connecting with the drawer 4. The other side of the movable plate is provided with an adjusting device 13, the adjusting device 13 includes a transmission member 131 and a first adjusting member 132, the first adjusting member 132 includes a first fixing portion 1321 for fixedly connecting with the upper rail 2 and a first movable portion 1322 disposed on the first fixing portion 1321 and movable relative thereto; one end of the transmission member 131 is in transmission connection with the first movable portion 1322, and the other end is fixedly connected with the movable member 11. Therefore, the first movable portion 1322 can be driven to move relative to the first fixed portion 1321 by using a tool or manually adjusting, and further the transmission member 131 is driven to move; because one side of the movable part 11 is provided with a connecting piece 12 connected with the drawer 4, the drawer 4 can be driven to move at the same time, thereby realizing the adjustment of the left and right positions of the drawer 4.
Referring to fig. 1, in particular, the first fixing portion 1321 is a first adjusting bolt fixedly welded to the upper rail 2 along the horizontal direction, and the first moving portion 1322 is a first adjusting nut sleeved on the first adjusting bolt and in threaded engagement with the first adjusting bolt. The transmission member 131 is a shifting fork, a slot 1311 for a first adjusting bolt to pass through is disposed at the bottom of the shifting fork, and the first adjusting nut is clamped in the slot 1311. One side of the movable plate is provided with a first mounting groove 111 arranged along the length direction thereof, the top of the shifting fork is provided with a T-shaped boss 1312, and the boss 1312 slides into the first mounting groove 111 along the horizontal direction and is clamped and fixed with the first mounting groove 111. In addition, two third mounting holes 1313 are respectively formed at the top of the yoke on two sides of the boss 1312, and avoidance holes 112 are formed on the movable plate corresponding to the third mounting holes 1313. Therefore, after the first fastening member 14 passes through the avoiding hole 112 and is fixed in the third mounting hole 1313, the movable plate and the shifting fork can be fixedly connected.
In the present embodiment, the first fastener 14 is a self-tapping screw.
Therefore, when the left and right positions of the drawer 4 need to be adjusted, the drawer 4 is pulled out firstly, and then the first adjusting nut is pulled manually, so that the first adjusting nut can be driven to move along the axial direction of the first adjusting bolt. Because this first adjusting nut card is established in the draw-in groove 1311 of shift fork, so this first adjusting nut removes and will drive simultaneously and pull out the fork and remove, and owing to pull out fork and moving part 11 fixed connection, so can drive this moving part 11 and move about relatively last rail 2 simultaneously, and then drive drawer 4 and move about relatively last rail 2 to realize adjusting the position about drawer 4, and then realize adjusting the interval between the drawer 4 left and right sides and the cabinet body wallboard, make whole vision more pleasing to the eye. In addition, because the adjusting mode can adopt manual adjustment, an external tool is not needed, so that the adjustment is more convenient and quicker, and no space limitation exists. (there are space constraints if external tool adjustment is used, especially if the drawer 4 closest to the floor cannot be adjusted with tools).
It should be noted that, in other embodiments, the adjusting device 13 may also be provided with only the first adjusting element 132, and the first movable portion 1322 of the first adjusting element 132 is directly connected to the movable element 11, so that when the first movable portion 1322 is adjusted and moved relative to the first fixed portion 1321, the movable element 11 is simultaneously driven to move. Of course, the transmission members 131 may be provided in plural, the transmission members 131 are mutually connected in a transmission manner, at least one transmission member 131 is connected with the first adjusting member 132 in a transmission manner, and at least another transmission member 131 is fixedly connected with the movable member, which can achieve the same technical effect, and the present disclosure is not limited thereto.
In other embodiments, the first fixing portion 1321 may be a first adjusting nut fixedly connected to the upper rail 2, and the first moving portion 1322 may be a first adjusting bolt threaded in the first adjusting nut and engaged with the first adjusting nut, which can achieve the same technical effects. Alternatively, the first fixed portion 1321 and the first movable portion 1322 may have other structures, and are not limited thereto.
Referring to fig. 1-2, the connecting element 12 is a second adjusting element, and the second adjusting element includes a second fixing portion 121 connected to the movable element 11, and a second movable portion 122 disposed on the second fixing portion 121 and movable relative thereto. Specifically, the second fixing portion 121 is a second adjusting bolt fixedly connected to the movable member 11 along the vertical direction, and the second movable portion 122 is a second adjusting nut sleeved on the second adjusting bolt and in threaded engagement with the second adjusting bolt. The drawer 4 is provided with a mounting hole, and after the second adjusting bolt extends into the mounting hole, a second adjusting nut sleeved on the second adjusting bolt is abutted against the drawer 4, so that the connection between the drawer 4 and the adjusting mechanism 1 is realized.
In this embodiment, the upper bending portion of the movable member 11 is provided with a first mounting hole 114, and the second adjusting bolt is inserted into the first mounting hole 114.
Therefore, when the height position of the drawer 4 needs to be adjusted, the drawer 4 is pulled out firstly, and then the second adjusting nut is shifted by a tool or manually, so that the second adjusting nut can be driven to move up and down along the axis direction of the second adjusting bolt, and the height position of the drawer 4 can be adjusted.
Of course, in other embodiments, the connecting element 12 may also be another fastening element such as a screw or a bolt, and two ends of the fastening element are respectively and fixedly connected to the moving element 11 and the drawer 4, which can also achieve the connection between the drawer 4 and the adjusting mechanism 1, but cannot achieve the adjustment of the height position of the drawer 4. In other embodiments, the second fixed portion 121 and the second movable portion 122 may have other structures, which are not limited herein.
Example two
Referring to fig. 3-7, the present invention further provides a drawer assembly, which includes an upper rail 2, a drawer 4 and an adjusting mechanism 1 according to the first embodiment. Specifically, the upper rail 2 is made of rectangular channel steel, and one side surface thereof is provided with a second mounting groove 22, and the other side surface thereof is provided with a rectangular opening 23. Therefore, when the movable plate is inserted into the upper rail 2, one side of the movable plate passes through the second mounting groove 22, and the bent portion of the other side of the movable plate is located at the opening 23. In addition, a fourth mounting hole 24 is further formed in the side surface of the upper rail 2 below the second mounting groove 22, and the first adjusting bolt penetrates through the fourth mounting hole 24 and is welded and fixed. In addition, in order to limit the stroke of the movable member 11 moving left and right relative to the upper rail 2, a limit mechanism is further arranged between the movable member 11 and the upper rail 2. Specifically, the limiting mechanism includes a limiting groove 21 formed at the top of the upper rail 2, a second mounting hole 113 formed on the movable member 11, and a second fastening member 3 sequentially passing through the limiting groove 21 and the second mounting hole 113 and fixed thereto. Therefore, by adjusting the first adjusting member 132, the second fastening member 3 can be driven to move along the guiding direction of the limiting groove 21, so that the moving stroke of the movable member 11 can be limited. Specifically, fig. 5 and fig. 6 are schematic views of the movable element 11 in two extreme positions.
In the present embodiment, the second fastening member 3 is a rivet.
To sum up, the utility model discloses an adjustment mechanism 1 and drawer subassembly for drawer slide rail has following beneficial effect:
(one) the utility model discloses an adjustment mechanism 1, when position about needs adjustment drawer 4, at first pull out drawer 4, through adjusting this first regulating part 132 afterwards, can drive moving part 11 and control about rail 2 relatively, because one side of this moving part 11 is equipped with the connecting piece 12 that is connected with drawer 4, so can drive drawer 4 and control about rail 2 relatively simultaneously, thereby realize adjusting drawer 4's left and right sides position, and then realize adjusting the interval between 4 left and right sides of drawer and the cabinet body wallboard, make whole vision more pleasing to the eye. In addition, because the adjustment mode can adopt manual regulation, so need not to adopt external instrument for adjust convenient more, swift, and do not have any space restriction, thereby can realize adjusting the position of the drawer 4 that is closest to ground.
(II) the utility model discloses an adjustment mechanism 1 when 4 high positions of drawer need be adjusted, at first pulls out drawer 4, through adjusting this second regulating part afterwards, can drive this drawer 4 and reciprocate relatively upper rail 2 to realize adjusting the high position of drawer 4.
The technical means disclosed by the scheme of the present invention is not limited to the technical means disclosed by the above embodiments, but also includes the technical scheme formed by the arbitrary combination of the above technical features. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications are also considered as the protection scope of the present invention.

Claims (10)

1. An adjustment mechanism for a drawer slide, comprising:
the moving piece is used for penetrating the upper rail;
the connecting piece is arranged on one side of the movable piece and is used for being connected with the drawer;
adjusting device, its setting is in the opposite side of moving part just includes first regulating part at least, through instrument or manual regulation first regulating part can drive the relative upper rail of moving part removes to realize the regulation of drawer left and right sides position.
2. The adjustment mechanism of claim 1, wherein the first adjustment member includes a first fixed portion for connection with the headrail and a first movable portion disposed on the first fixed portion and movable relative thereto; through adjusting first movable part, can make it move relatively first fixed part, and then drive the moving part removes.
3. The adjusting mechanism of claim 2, wherein the first fixing portion is a first adjusting bolt having one end fixedly connected to the upper rail, and the first moving portion is a first adjusting nut sleeved on the first adjusting bolt and threadedly engaged therewith.
4. The adjusting mechanism according to any one of claims 1 to 3, wherein the adjusting device further comprises at least one transmission member disposed between the movable member and the first adjusting member, and the transmission member is moved by adjusting the first adjusting member, so as to move the movable member.
5. The adjusting mechanism according to claim 4, wherein the transmission member is a shift fork, one end of the transmission member is clamped on the first adjusting member to realize transmission connection, and the other end of the transmission member is connected with the movable member.
6. The adjustment mechanism of claim 1, wherein the connecting member is a second adjustment member and includes a second fixed portion connected to the movable member and a second movable portion disposed on the second fixed portion and movable relative thereto; the second movable part can move relative to the second fixed part by adjusting the second movable part, so that the height position of the drawer can be adjusted.
7. The adjusting mechanism of claim 6, wherein the second fixed portion is a second adjusting bolt having one end fixedly connected to the movable member, and the second movable portion is a second adjusting nut sleeved on the second adjusting bolt and threadedly engaged therewith.
8. The adjusting mechanism according to claim 1, wherein the movable member is a movable plate penetrating through the upper rail and having two sides extending out of the upper rail, and the connecting member and the adjusting device are respectively disposed on two sides of the movable plate and located outside the upper rail.
9. A drawer assembly comprising an upper rail, a drawer, and an adjustment mechanism according to any one of claims 1-8.
10. The drawer assembly of claim 9, further comprising a fastener sequentially passing through the upper rail and the movable member and fixed, wherein the upper rail is provided with a limiting groove matched with the fastener.
CN202221627144.6U 2022-06-27 2022-06-27 Adjusting mechanism for drawer slide rail and drawer assembly Active CN218164628U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221627144.6U CN218164628U (en) 2022-06-27 2022-06-27 Adjusting mechanism for drawer slide rail and drawer assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202221627144.6U CN218164628U (en) 2022-06-27 2022-06-27 Adjusting mechanism for drawer slide rail and drawer assembly

Publications (1)

Publication Number Publication Date
CN218164628U true CN218164628U (en) 2022-12-30

Family

ID=84611852

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202221627144.6U Active CN218164628U (en) 2022-06-27 2022-06-27 Adjusting mechanism for drawer slide rail and drawer assembly

Country Status (1)

Country Link
CN (1) CN218164628U (en)

Similar Documents

Publication Publication Date Title
US10575636B2 (en) Slide rail mechanism
EP2814356B1 (en) Drawer
US20090236959A1 (en) Slide adjusting device for a drawer
EP3905865A1 (en) Slide rail assembly
US20120146476A1 (en) Tolerance adaptive slide connection assemblies
EP3094166B1 (en) Slide rail assembly
CN218164628U (en) Adjusting mechanism for drawer slide rail and drawer assembly
US20080018213A1 (en) Drawer slide assembly having an adjustment mechanism
CN115137170A (en) Adjusting mechanism for drawer slide rail and drawer assembly
CN112056825B (en) Slide rail position adjusting mechanism, slide rail and slide rail assembly
US10925397B2 (en) Slide rail mechanism
EP3773074B1 (en) Drawer system with pull-out rail onto which different drawers can be installed
CN106820684B (en) Drawer sliding rail component
DE3719841A1 (en) Spring-tension mounting
CN218185891U (en) Adjusting mechanism for adjusting drawer position and drawer assembly
CN2484828Y (en) Quick assembled drawer
EP1923874A1 (en) Optical pickup guide mechanism
EP2789780A1 (en) Support and adjustment device of a trolley for sliding doors or panels
EP3553266A1 (en) Sliding accessory with damping device
CN114776156B (en) Device for preventing automatic door opening of double-opening sliding door of vehicle
EP2275629A2 (en) Window bolt and window therewith
CN219529631U (en) Transmission force meshing and separating structure
GB2440306A (en) Drawer slide assembly having an adjustment mechanism
CN221096228U (en) Hoisting connecting assembly, door body connecting module and door body system
CN215632192U (en) Based on municipal construction is with enclosing fender

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 528322 Plot No. 2-1-1, Plot No. 2-1-2, Plot No. 2-1-3, Plot No. 2-3, Zhongyong Industrial Zone, Zhongyong Village Committee, Leliu Street, Shunde District, Foshan City, Guangdong Province - Lot 2 of No. 3 (residence declaration)

Patentee after: Guangdong Tute Precision Hardware Technology Co.,Ltd.

Address before: 528322 Plot No. 2-1-1, Plot No. 2-1-2, Plot No. 2-1-3, Plot No. 2-3, Zhongyong Industrial Zone, Zhongyong Village Committee, Leliu Street, Shunde District, Foshan City, Guangdong Province - Lot 2 of No. 3 (residence declaration)

Patentee before: GUANGDONG TUTTI HOUSEHOLD SCIENCE & TECHNOLOGY CO.,LTD.