CN110074573B - Mechanical self-locking structure for sliding rail - Google Patents
Mechanical self-locking structure for sliding rail Download PDFInfo
- Publication number
- CN110074573B CN110074573B CN201910504825.XA CN201910504825A CN110074573B CN 110074573 B CN110074573 B CN 110074573B CN 201910504825 A CN201910504825 A CN 201910504825A CN 110074573 B CN110074573 B CN 110074573B
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- block
- sliding
- base
- self
- locking
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- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/50—Safety devices or the like for drawers
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
- A47B88/90—Constructional details of drawers
Landscapes
- Drawers Of Furniture (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to the technical field of sliding rails, and relates to a mechanical self-locking structure for a sliding rail, which comprises a self-locking assembly arranged on the inner surface of an outer rail and an unlocking block arranged on an inner rail, wherein the self-locking assembly and the unlocking block are matched to lock and unlock the sliding rail, and the mechanical self-locking structure is characterized in that: the self-locking assembly comprises a base, wherein a rack is arranged on one side of the surface of the base along the width direction, a limiting wall is arranged on the other side of the surface of the base, and a transmission block is arranged on the base and corresponds to the space between the rack and the limiting wall; the sliding block is connected with the base in a sliding fit manner, the circumferential surface of the transmission block is matched in a shaft wall formed on the bottom surface of the sliding block, a ring-shaped torsion spring is arranged on the inner ring of the transmission block, two torsion arms of the torsion spring are respectively arranged in a first notch of the transmission block and a second notch of the sliding block, and a first moving shaft of the transmission block extends into a first limiting groove on the sliding block. The self-locking structure is ingenious and reasonable in design, can realize effective and convenient self-locking of the sliding rail, and is stable and reliable in self-locking.
Description
Technical Field
The invention belongs to the technical field of sliding rails, and relates to a mechanical self-locking structure for a sliding rail.
Background
Slide rails are a type of sliding tool widely used in daily life, and are generally used for connecting two objects capable of moving relative to each other, such as drawers, cabinet servers, etc. Among them, three steel ball type slide rails are more common, which are more commonly installed on drawer type devices for free pull-out and push-back of the drawer type devices. Taking a drawer as an example, the three-section steel ball type sliding rail generally comprises an outer sliding rail, a middle sliding rail and an inner sliding rail, wherein the outer sliding rail is fixed on a supporting frame, the inner sliding rail is fixed at two sides of the drawer, the middle sliding rail is used as a bearing sliding rail and connected between the outer sliding rail and the inner sliding rail to extend the moving range of the drawer, and the middle sliding rail and the inner sliding rail can slide back and forth relative to the outer sliding rail along the axial direction of the outer sliding rail, so that the drawer can be pulled out or pushed back freely through the sliding rail. However, the existing three-section sliding rail has no self-locking device, so that the sliding rail cannot be locked in the state of pushing back the drawer, and the phenomenon that the inner sliding rail and the middle sliding rail automatically slide out easily occurs under the condition of non-artificial external force such as inclination and vibration of the bearing surface.
At present, some sliding rails with self-locking structures also appear on the market, and the self-locking structures have the problems of complex structures and unreliable self-locking.
Disclosure of Invention
The invention aims at the problems and provides a mechanical self-locking structure for a sliding rail, which is ingenious and reasonable in design, can realize effective and convenient self-locking of the sliding rail, and is stable and reliable in self-locking.
According to the technical scheme of the invention: a mechanical self-locking structure for slide rail, including installing in the self-locking subassembly of exterior rail internal surface and installing the unblock piece on interior rail, self-locking subassembly and unblock piece cooperate to realize the locking and the unblock of slide rail, its characterized in that: the self-locking assembly comprises a base, wherein a rack is arranged on one side of the surface of the base along the width direction, a limiting wall is arranged on the other side of the surface of the base, and a transmission block is arranged on the base and corresponds to the space between the rack and the limiting wall; the sliding block is connected with the base in a sliding fit manner, the circumferential surface of the transmission block is matched in a shaft wall formed on the bottom surface of the sliding block, the inner ring of the transmission block is provided with a ring-shaped torsion spring, two torsion arms of the torsion spring are respectively arranged in a first notch of the transmission block and a second notch of the sliding block, and a first movable shaft of the transmission block extends into a first limit groove on the sliding block; the base is also provided with a rotating block, a rotating shaft of the rotating block extends into a round hole of the sliding block, a second moving shaft of the rotating block extends into a second limit groove of the sliding block, and an elastic wall is arranged on the sliding block corresponding to the second limit groove; the rotary block is also provided with a hook which is matched with a clamping groove arranged on the transmission block; the rotary teeth arranged on the circumferential surface of the lower part of the transmission block are meshed with the racks.
As a further improvement of the invention, sliding walls are respectively arranged on two sides of the base along the width direction, and the sliding grooves of the sliding blocks are connected with the sliding walls in a sliding fit manner.
As a further development of the invention, the second recess is arranged in the inner ring of the shaft wall and is arranged radially.
As a further improvement of the invention, the first limit groove is an arc groove arranged along the length direction of the sliding block.
As a further improvement of the invention, the two torsion arms of the torsion spring are respectively a first clamping hook arranged on the outer ring of the annular torsion spring body and a second clamping hook arranged on the inner ring of the annular torsion spring body.
As a further improvement of the invention, the base is also provided with an end face with an arc-shaped bulge, the base is provided with an arc-shaped groove matched with the arc-shaped bulge, and one end of the base, which corresponds to the rack and is close to the arc-shaped groove, and one end of the base, which corresponds to the limiting wall and is far from the arc-shaped groove, are respectively provided with an arc-shaped guide part.
As a further improvement of the invention, the unlocking block is provided with an unlocking surface, a driving surface and a locking surface.
As a further improvement of the invention, the two ends of the base along the length direction are respectively provided with a stop surface.
As a further improvement of the invention, the first moving shaft is arranged on the inner wall of the transmission block.
As a further improvement of the invention, the sum of the stroke of the sliding block sliding to the other end along one end of the sliding wall and the horizontal distance corresponding to the first moving shaft sliding to the other end along one end of the first limiting groove is the self-locking stroke of the sliding rail.
The invention has the technical effects that: the invention has simple, reasonable and reliable structure, and realizes reliable and stable locking when in work by simultaneously connecting the rotating block and the transmission block which form the interlocking structure with the sliding block.
Drawings
Fig. 1 is an exploded view of a slide rail to which the product of the present invention is applied.
Fig. 2 is an exploded view of the self-locking assembly.
Fig. 3 is a schematic view of the structure of the self-locking assembly with the slider separated from the body.
Fig. 4 is a schematic structural view of the self-locking assembly.
Fig. 5 is a schematic structural view of the base.
Fig. 6 and 7 are schematic structural views of the slider.
Fig. 8 is a schematic structural view of the torsion spring.
Fig. 9 and 10 are schematic structural views of the transmission block.
Fig. 11 is a schematic structural view of the unlocking block.
Fig. 12 is a schematic structural view of the rotating block.
Fig. 13 is a schematic view of a self-locking travel of a slide rail according to the present invention.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings.
In the fig. 1-13, the locking device comprises a base 1, a rack 1-1, a stop surface 1-2, a sliding wall 1-3, a limiting wall 1-4, a transmission block 2, a first moving shaft 2-1, a first notch 2-2, a clamping groove 2-3, a rotating tooth 2-4, an inner wall 2-5, a sliding block 3, a shaft wall 3-1, a second notch 3-2, an end surface 3-3, a sliding groove 3-4, an elastic wall 3-5, a first limiting groove 3-6, a second limiting groove 3-7, a round hole 3-8, a torsion spring 4, a first clamping hook 4-1, a second clamping hook 4-2, an unlocking block 5, a driving surface 5-1, a locking surface 5-2, an unlocking surface 5-3, a rotating block 6, a second moving shaft 6-1, a clamping hook 6-2, a rotating shaft 6-3, an inner rail 7, an outer rail 8, a middle rail 9, a self-locking assembly 10 and the like.
As shown in fig. 1-13, the invention relates to a mechanical self-locking structure for a sliding rail, which comprises a self-locking assembly 10 arranged on the inner surface of an outer rail 8 and an unlocking block 5 arranged on an inner rail 7, wherein the self-locking assembly 10 is matched with the unlocking block 5 to lock and unlock the sliding rail, the self-locking assembly 10 comprises a base 1, one side of the surface of the base 1 along the width direction is provided with a rack 1-1, the other side is provided with a limiting wall 1-4, and a transmission block 2 is arranged on the base 1 and corresponds to the space between the rack 1-1 and the limiting wall 1-4; the sliding block 3 is connected with the base 1 in a sliding fit manner, the circumferential surface of the transmission block 2 is matched in a shaft wall 3-1 formed on the bottom surface of the sliding block 3, a ring-shaped torsion spring 4 is arranged at the inner ring of the transmission block 2, two torsion arms of the torsion spring 4 are respectively arranged in a first notch 2-2 of the transmission block 2 and a second notch 3-2 of the sliding block 3, and a first movable shaft 2-1 of the transmission block 2 extends into a first limit groove 3-6 on the sliding block 3; the base 1 is also provided with a rotating block 6, a rotating shaft 6-3 of the rotating block 6 extends into a round hole 3-8 of the sliding block 3, a second moving shaft 6-1 of the rotating block 6 extends into a second limit groove 3-7 of the sliding block 3, and an elastic wall 3-5 is arranged on the sliding block 3 corresponding to the second limit groove 3-7; the rotary block 6 is also provided with a hook 6-2, and the hook 6-2 is matched with a clamping groove 2-3 arranged on the transmission block 2; the rotary teeth 2-4 arranged on the lower circumferential surface of the transmission block 2 are meshed with the racks 1-1.
The base 1 is provided with sliding walls 1-3 on two sides in the width direction respectively, and sliding grooves 3-4 of the sliding blocks 3 are connected with the sliding walls 1-3 in a sliding fit manner. So as to realize reliable and stable sliding in operation and ensure that the sliding block 3 cannot be separated from the base 1.
The second notch 3-2 is arranged on the inner ring of the shaft wall 3-1 and is arranged along the radial direction. So as to realize the reliable fixation of the torsion spring 4 and ensure the reliable power storage of the torsion spring 4 during the working.
The first limit groove 3-6 is an arc groove arranged along the length direction of the sliding block 3. In operation, the first shaft 2-1 can move reliably in the first limiting groove 3-6.
The two torsion arms of the torsion spring 4 are respectively a first clamping hook 4-1 arranged on the outer ring of the annular torsion spring body and a second clamping hook 4-2 arranged on the inner ring of the annular torsion spring body.
The base 1 is also provided with an end face 3-3 with an arc bulge, the base 1 is provided with an arc groove matched with the arc bulge, one end of the base 1, which corresponds to the rack 1-1 and is close to the arc groove, and one end of the base 1, which corresponds to the limiting wall 1-4 and is far away from the arc groove, are respectively provided with an arc guide part.
The unlocking block 5 is provided with an unlocking surface 5-3, a driving surface 5-1 and a locking surface 5-2.
The two ends of the base 1 along the length direction are respectively provided with a stop surface 1-2.
The first moving shaft 2-1 is arranged on the inner wall 2-5 of the transmission block 2.
As shown in fig. 13, the sum of the horizontal distance corresponding to the sliding distance from one end of the sliding block 3 to the other end along the sliding wall 1-3 and the sliding distance from one end of the first limiting groove 3-6 to the other end along the first moving shaft 2-1 is the sliding rail self-locking stroke. The self-locking travel of the sliding rail in the product can reach 60% to 90% of the total length of the self-locking structure, even if the space is the same, the self-locking travel of the product is greatly improved, and the self-locking travel of the existing sliding rail is only 30% to 50% of the self-locking structure generally.
The working process of the product of the invention after being arranged on a drawer is as follows: when the drawer is pulled, the inner rail 7 is pulled outwards, the unlocking block 5 is fixed on the inner rail 7, the driving wall 5-1 arranged on the unlocking block 5 drives the moving shaft 2-1 on the transmission block 2 to move, the transmission block 2 is limited by the rack 1-1 arranged on the base 1 and the shaft wall 3-1 arranged on the sliding block 3, the transmission block 2 moves linearly along the rack 1-1 direction and rotates around the shaft wall 3-1, when the transmission block 2 rotates, the first notch 2-2 on the transmission block 2 and the second notch 3-2 on the sliding block 3 drive the torsion spring 4 to deform, the torsion spring 4 stores force, the transmission block 2 drives the sliding block 3 to move, when the end face of the sliding block 3 contacts with the stop face of the base 1, the locking face on the unlocking block 5 contacts with the second moving shaft 6-1 of the rotating block 6, the hook 6-2 on the rotating block 6 is driven to rotate into the clamping groove 2-3 of the transmission block 2, the self-locking assembly 10 completes locking, and the unlocking block 5 is separated from the transmission block 2.
When the drawer is pushed to be closed, the inner rail 7 moves inwards, the unlocking surface 5-3 on the unlocking block 5 contacts the second moving shaft 6-1 of the rotating block 6, the rotating block 6 rotates, the hook 6-2 on the rotating block 6 is separated from the clamping groove 2-3 of the transmission block, the torsion of the torsion spring 4 is released to drive the transmission block 2 to rotate, the transmission block 2 is limited by the rack 1-1 on the base 1 to move linearly along the direction of the rack 1-1 and rotate around the shaft wall 3-1 on the sliding block 3, the first moving shaft 2-1 on the transmission block 2 contacts the driving wall 5-1 on the unlocking block 5 to drive the unlocking block 5 to move, and the sliding rail can be automatically closed.
Claims (9)
1. A mechanical self-locking structure for slide rail, including install in the self-locking subassembly (10) of exterior rail (8) internal surface and install unlocking block (5) on interior rail (7), self-locking subassembly (10) and unlocking block (5) cooperate and realize the locking and the unblock of slide rail, its characterized in that: the self-locking assembly (10) comprises a base (1), wherein one side of the surface of the base (1) along the width direction is provided with a rack (1-1), the other side of the surface of the base is provided with a limiting wall (1-4), and the transmission block (2) is arranged on the base (1) and corresponds to between the rack (1-1) and the limiting wall (1-4); the sliding block (3) is connected with the base (1) in a sliding fit manner, the circumferential surface of the transmission block (2) is matched in a shaft wall (3-1) formed on the bottom surface of the sliding block (3), a ring-shaped torsion spring (4) is arranged at the inner ring of the transmission block (2), two torsion arms of the torsion spring (4) are respectively arranged in a first notch (2-2) of the transmission block (2) and a second notch (3-2) of the sliding block (3), and a first movable shaft (2-1) of the transmission block (2) extends into a first limit groove (3-6) on the sliding block (3); a rotating block (6) is further arranged on the base (1), a rotating shaft (6-3) of the rotating block (6) stretches into a round hole (3-8) of the sliding block (3), a second moving shaft (6-1) of the rotating block (6) stretches into a second limit groove (3-7) of the sliding block (3), and an elastic wall (3-5) is arranged on the sliding block (3) corresponding to the second limit groove (3-7); a hook (6-2) is further arranged on the rotating block (6), and the hook (6-2) is matched with a clamping groove (2-3) arranged on the transmission block (2); the rotary teeth (2-4) arranged on the circumferential surface of the lower part of the transmission block (2) are meshed with the racks (1-1);
an unlocking surface (5-3), a driving surface (5-1) and a locking surface (5-2) are arranged on the unlocking block (5), when the drawer is pulled, the inner rail (7) is pulled outwards, the driving wall (5-1) arranged on the unlocking block (5) drives the moving shaft (2-1) on the transmission block (2) to move, and the transmission block (2) rotates; when the drawer is pushed to be closed, the inner rail (7) moves inwards, the unlocking surface (5-3) on the unlocking block (5) contacts with the second movable shaft (6-1) of the rotating block (6), and the rotating block (6) rotates.
2. The mechanical self-locking structure for a slide rail of claim 1, wherein: sliding walls (1-3) are respectively arranged on two sides of the base (1) along the width direction, and sliding grooves (3-4) of the sliding blocks (3) are connected with the sliding walls (1-3) in a sliding fit mode.
3. The mechanical self-locking structure for a slide rail of claim 1, wherein: the second notch (3-2) is arranged on the inner ring of the shaft wall (3-1) and is arranged along the radial direction.
4. The mechanical self-locking structure for a slide rail of claim 1, wherein: the first limit groove (3-6) is an arc groove arranged along the length direction of the sliding block (3).
5. The mechanical self-locking structure for a slide rail of claim 1, wherein: the two torsion arms of the torsion spring (4) are respectively a first clamping hook (4-1) arranged on the outer ring of the annular torsion spring body and a second clamping hook (4-2) arranged on the inner ring of the annular torsion spring body.
6. The mechanical self-locking structure for a slide rail of claim 1, wherein: the base (1) is also provided with an end face (3-3) with an arc bulge, the base (1) is provided with an arc groove matched with the arc bulge, one end of the base (1) which corresponds to the rack (1-1) and is close to the arc groove, and one end of the base (1) which corresponds to the limiting wall (1-4) and is far away from the arc groove are respectively provided with an arc guide part.
7. The mechanical self-locking structure for a slide rail of claim 1, wherein: the base (1) is provided with stop surfaces (1-2) along two ends of the length direction respectively.
8. The mechanical self-locking structure for a slide rail of claim 1, wherein: the first moving shaft (2-1) is arranged on the inner wall (2-5) of the transmission block (2).
9. The mechanical self-locking structure for a slide rail of claim 1, wherein: the sum of the stroke of the sliding block (3) sliding to the other end along one end of the sliding wall (1-3) and the horizontal distance corresponding to the first moving shaft (2-1) sliding to the other end along one end of the first limiting groove (3-6) is the sliding rail self-locking stroke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504825.XA CN110074573B (en) | 2019-06-12 | 2019-06-12 | Mechanical self-locking structure for sliding rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910504825.XA CN110074573B (en) | 2019-06-12 | 2019-06-12 | Mechanical self-locking structure for sliding rail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110074573A CN110074573A (en) | 2019-08-02 |
| CN110074573B true CN110074573B (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910504825.XA Active CN110074573B (en) | 2019-06-12 | 2019-06-12 | Mechanical self-locking structure for sliding rail |
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| Country | Link |
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| CN (1) | CN110074573B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111136718B (en) * | 2020-01-15 | 2025-06-20 | 沈阳瑞晟智能装备有限公司 | Rewinding machine cutting device and rewinding machine |
| CN116530785A (en) * | 2023-05-25 | 2023-08-04 | 无锡晶美精密滑轨有限公司 | A kind of torsion spring pushing mechanism and its locking and pushing method |
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| CN203723703U (en) * | 2011-01-13 | 2014-07-23 | 肖又松 | Slide rail component |
| CN107411385A (en) * | 2017-04-14 | 2017-12-01 | 伍志勇 | A kind of furniture Automatic-reset press rebound mechanism |
| WO2018010331A1 (en) * | 2016-07-09 | 2018-01-18 | 林旭文 | Cushioning member for furniture sliding rail and furniture sliding rail using same |
| CN108323971A (en) * | 2018-03-12 | 2018-07-27 | 无锡晶美精密滑轨有限公司 | Sliding rail self-locking structure |
| CN108323969A (en) * | 2018-03-12 | 2018-07-27 | 无锡晶美精密滑轨有限公司 | Sliding rail mechanical self-latching structure |
| CN208624943U (en) * | 2018-03-12 | 2019-03-22 | 无锡晶美精密滑轨有限公司 | Sliding rail is from lock set |
| CN210249129U (en) * | 2019-06-12 | 2020-04-07 | 无锡晶美精密滑轨有限公司 | Mechanical self-locking structure for slide rails |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM302606U (en) * | 2006-06-02 | 2006-12-11 | Gslide Corp | Automatic closing equipment for hidden drawer rail |
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2019
- 2019-06-12 CN CN201910504825.XA patent/CN110074573B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203723703U (en) * | 2011-01-13 | 2014-07-23 | 肖又松 | Slide rail component |
| CN203692958U (en) * | 2014-01-07 | 2014-07-09 | 冉隆海 | Buffer device for furniture sliding rails |
| WO2018010331A1 (en) * | 2016-07-09 | 2018-01-18 | 林旭文 | Cushioning member for furniture sliding rail and furniture sliding rail using same |
| CN107411385A (en) * | 2017-04-14 | 2017-12-01 | 伍志勇 | A kind of furniture Automatic-reset press rebound mechanism |
| CN108323971A (en) * | 2018-03-12 | 2018-07-27 | 无锡晶美精密滑轨有限公司 | Sliding rail self-locking structure |
| CN108323969A (en) * | 2018-03-12 | 2018-07-27 | 无锡晶美精密滑轨有限公司 | Sliding rail mechanical self-latching structure |
| CN208624943U (en) * | 2018-03-12 | 2019-03-22 | 无锡晶美精密滑轨有限公司 | Sliding rail is from lock set |
| CN210249129U (en) * | 2019-06-12 | 2020-04-07 | 无锡晶美精密滑轨有限公司 | Mechanical self-locking structure for slide rails |
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| CN110074573A (en) | 2019-08-02 |
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