CN214465597U - Double-safety rear lock - Google Patents
Double-safety rear lock Download PDFInfo
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- CN214465597U CN214465597U CN202022753241.7U CN202022753241U CN214465597U CN 214465597 U CN214465597 U CN 214465597U CN 202022753241 U CN202022753241 U CN 202022753241U CN 214465597 U CN214465597 U CN 214465597U
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- lock pin
- bulge
- lock
- rail assembly
- middle rail
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Abstract
The utility model relates to a double-insurance back lock, which comprises an inner rail component, a middle rail component and an outer rail component which are connected from inside to outside and are in sliding connection with each other, wherein the inner side surface of the rear end of the outer rail component protrudes inwards to form a bulge; two clamping positions for clamping the lock pin are continuously arranged on the bulge along the length direction; when the lock pin is clamped in one of the bulges, the other bulge acts on the lock pin to enable the lock pin to move upwards and separate from the clamped bulge, and the lock pin is clamped in the bulge enabling the lock pin to move upwards; the setting of two screens on the swell, when with the lockpin unblock from a swell, effectively guaranteed the reliable of lockpin and another swell and clamped, promoted the stability that the slide rail used.
Description
Technical Field
The utility model belongs to the technical field of the slide rail application technique and specifically relates to a lock behind double insurance.
Background
The sliding rail is usually formed by installing a plurality of rails which can slide relatively in a matching way, and the stability of the sliding rail after sliding out or retracting is realized through locking between the adjacent rails.
In the prior art, a lock pin is arranged on a middle rail, and when the lock pin is clamped in a bayonet of an outer rail, the middle rail and the outer rail are locked; and the lock pin is lifted up through the convex inclined plane on the inner rail in the sliding process, so that the lock pin is separated from the bayonet, and the unlocking of the locking between the middle rail and the outer rail is realized.
In the process, when the locking between the middle rail and the outer rail is unlocked, the middle rail and the inner rail cannot be synchronously locked, or the locking pin is clamped with a bayonet behind the convex inclined plane on the inner rail when being reset so as to lock the middle rail and the inner rail in a sliding mode; the latter method depends on the sliding distance of the inner rail relative to the middle rail when the locking between the outer rail and the middle rail is unlocked, and cannot completely guarantee the timeliness and reliability of the locking between the inner rail and the middle rail, and the phenomenon that the locking between the middle rail and the outer rail is unlocked but not locked with the inner rail exists.
SUMMERY OF THE UTILITY MODEL
The applicant provides a double-insurance rear lock with a reasonable structure aiming at the defects in the prior art, so that the lock pin of the middle rail can be smoothly and reliably clamped with another bulge while being unlocked from one bulge, and the use reliability and stability of the sliding rail are effectively improved.
The utility model discloses the technical scheme who adopts as follows:
a double-insurance rear lock comprises an inner rail assembly, a middle rail assembly and an outer rail assembly which are connected from inside to outside in a sliding manner and are adjacent to each other, wherein the inner side surface of the rear end of the outer rail assembly protrudes inwards to form bulges, the outer side surface of the front end of the inner rail assembly protrudes outwards to form the same bulges, the front end of the middle rail assembly is provided with a lock pin which slides along the width direction, and the lock pin penetrates through the middle rail assembly from inside to outside; two clamping positions for clamping the lock pin are continuously arranged on the bulge along the length direction; when the lock pin is clamped in one of the bulges, the other bulge acts on the lock pin to enable the lock pin to move upwards and separate from the clamped bulge, and meanwhile, the lock pin is clamped in the bulge enabling the lock pin to move upwards.
As a further improvement of the above technical solution:
the structure of the bulge is as follows: the L-shaped body is characterized by comprising an L-shaped body, wherein a first inclined surface and a second inclined surface are sequentially arranged on a horizontal arm of the L-shaped body forwards, a first concave point is formed between a longitudinal arm of the L-shaped body and the first inclined surface, and a second concave point is formed between the first inclined surface and the second inclined surface; the first concave point and the second concave point form two clamping positions for locking the bump and the lock pin.
The height of the vertical arm of the L-shaped body is higher than that of the first inclined plane, and the height of the first inclined plane is higher than that of the second inclined plane.
The front end of the middle rail assembly is provided with a sliding groove along the width direction, the sliding groove penetrates through the middle rail assembly from inside to outside, and the lock pin is slidably arranged in the sliding groove.
And a torsional spring is also commonly arranged between the lock pin and the middle rail assembly, and the torsional spring enables the lock pin to reset after sliding along the sliding groove.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure and convenient operation, because the bulge is provided with two clamping positions, the lock pin of the middle rail is pushed away from the bulge of the outer rail through the bulge on the inner rail, and when the locking and the unlocking between the middle rail and the outer rail are carried out, the lock pin on the middle rail is synchronously clamped into one clamping position of the bulge on the inner rail, thereby effectively ensuring the stability and the reliability of the locking when the unlocking is carried out; on the contrary, the lock pin of the middle rail can be pushed away from the bulge of the inner rail through the bulge on the outer rail, and the lock pin on the middle rail is synchronously clamped into one clamping position of the bulge of the outer rail while the middle rail and the inner rail are locked and unlocked; the stability and the reliability of the slide rail are improved, and the practicability is good;
the utility model discloses still include following advantage:
the bulge L-shaped body is continuously provided with a first concave point and a second concave point which are adjacent through a first inclined plane and a second inclined plane, when the lock pin is pushed to move upwards through the first inclined plane, the lock pin is reset to be positioned in the second concave point in front, and the lock pin is positioned in the first concave point behind after the lock pin slides by continuously applying force, so that the locking reliability is ensured.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Wherein: 1. an outer rail assembly; 2. a middle rail assembly; 3. an inner rail assembly; 4. a torsion spring; 5. a lock pin; 6. bulging; 21. a chute; 61. an L-shaped body; 62. concave points I; 63. a first inclined plane; 64. a concave point II; 65. and a second inclined plane.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 and 2, the double-safety rear lock of the present embodiment includes an inner rail assembly 3, a middle rail assembly 2, and an outer rail assembly 1, which are slidably connected from inside to outside and adjacent to each other, wherein an inner side surface of a rear end of the outer rail assembly 1 protrudes inward to form a bulge 6, an outer side surface of a front end of the inner rail assembly 3 protrudes outward to form the same bulge 6, a lock pin 5 sliding along a width direction is installed at a front end of the middle rail assembly 2, and the lock pin 5 penetrates through the middle rail assembly 2 from inside to outside; two clamping positions for clamping the lock pin 5 are continuously arranged on the bulge 6 along the length direction; when the lock pin 5 is locked in one of the bulges 6, the other bulge 6 acts on the lock pin 5 to make the lock pin go upward and separate from the locked bulge 6, and the lock pin 5 is locked in the bulge 6 making the lock pin go upward.
Because the bulge 6 is provided with two clamping positions, the lock pin 5 of the middle rail component 2 is pushed away from the bulge 6 of the outer rail component 1 through the bulge 6 on the inner rail component 3, and when the middle rail component 2 and the outer rail component 1 are locked and unlocked, the lock pin 5 on the middle rail component 2 is synchronously clamped into one clamping position of the bulge 6 of the inner rail component 3, so that the stability and the reliability of locking during unlocking are effectively ensured; on the contrary, the lock pin 5 of the middle rail component 2 can be pushed away from the bulge 6 of the inner rail component 3 through the bulge 6 on the outer rail component 1, and the lock pin 5 on the middle rail component 2 is synchronously clamped into one clamping position of the bulge 6 of the outer rail component 1 when the middle rail component 2 and the inner rail component 3 are locked and unlocked.
As shown in fig. 3, the structure of the bulge 6 is: the L-shaped body 61 comprises an L-shaped body 61, wherein a first inclined surface 63 and a second inclined surface 65 are sequentially and forwardly arranged on a horizontal arm of the L-shaped body 61, a first concave point 62 is formed by sinking between a longitudinal arm of the L-shaped body 61 and the first inclined surface 63, and a second concave point 64 is formed by sinking between the first inclined surface 63 and the second inclined surface 65; the first concave point 62 and the second concave point 64 form two clamping positions for locking the bulge 6 and the lock pin 5; the bulge 6L-shaped body 61 is continuously provided with a first concave point 62 and a second concave point 64 which are adjacent through a first inclined surface 63 and a second inclined surface 65, when the lock pin 5 is pushed to move upwards through the first inclined surface 63, the lock pin 5 is reset to be positioned in the second concave point 64 which is positioned at the front, and when the lock pin 5 is continuously forced to slide, the lock pin 5 is positioned in the first concave point 62 which is positioned at the rear, so that the locking reliability is ensured.
The height of the vertical arm of the L-shaped body 61 is higher than that of the first inclined surface 63, and the height of the first inclined surface 63 is higher than that of the second inclined surface 65, so that the locking of the lock pin 5 is realized under the pushing and acting of the first inclined surface 63, and the reliability of synchronous locking during locking is assisted.
The front end of the middle rail component 2 is provided with a sliding groove 21 along the width direction, the sliding groove 21 penetrates through the middle rail component 2 from inside to outside, and the lock pin 5 is slidably arranged in the sliding groove 21.
The lock pin 5 is also provided with a torsion spring 4 between the middle rail components 2, and the torsion spring 4 enables the lock pin 5 to reset after sliding along the sliding groove 21.
The utility model discloses an application principle does:
when the outer rail assembly 1, the middle rail assembly 2 and the inner rail assembly 3 relatively and completely slide out, the lock pin 5 at the front end of the middle rail assembly 2 is clamped in the bulge 6 at the rear end of the outer rail assembly 1, as shown in fig. 2; force is applied to the inner rail component 3 to enable the inner rail component to slide in relative to the middle rail component 2, the bulge 6 on the inner rail component 3 is close to the lock pin 5 on the middle rail component 2, the slope I63 acts on the lock pin 5 to enable the lock pin 5 to move upwards relative to the middle rail component 2 along the sliding groove 21, the lock pin 5 is separated from the concave point I62 or the concave point II 64 on the bulge 6 of the outer rail component 1, and unlocking of locking between the outer rail component 1 and the middle rail component 2 is achieved;
at this time, if the force is continuously applied to the inner rail assembly 3 to enable the inner rail assembly 3 to slide in relative to the middle rail assembly 2, the lock pin 5 on the middle rail assembly 2 slides to the rear concave point I62 relative to the bulge 6 of the inner rail assembly 3 across the inclined plane I63, and the lock pin 5 moves downwards under the reset action of the torsion spring 4 to realize the locking between the middle rail assembly 2 and the inner rail assembly 3;
on the other hand, when the outer rail assembly 1 and the middle rail assembly 2 are locked and unlocked, the inner rail assembly 3 is reversely forced to slide out relative to the middle rail assembly 2, the lock pin 5 of the middle rail assembly 2 synchronously descends along the inclined plane one 63 of the bulge 6 of the inner rail assembly 3 under the reset action of the torsion spring 4, the lock pin 5 is locked in the concave point two 64 of the bulge 6, and the locking between the middle rail assembly 2 and the inner rail assembly 3 is also realized.
Similarly, when the outer rail assembly 1, the middle rail assembly 2 and the inner rail assembly 3 are completely slid relatively, the lock pin 5 at the front end of the middle rail assembly 2 is clamped into the bulge 6 at the front end of the inner rail assembly 3; when force is applied to the inner rail assembly 3 and the middle rail assembly 2 to enable the inner rail assembly 3 and the middle rail assembly 2 to slide out relative to the outer rail assembly 1, the bulge 6 on the outer rail assembly 1 is close to and close to the lock pin 5 on the middle rail assembly 2, and when the bulge 6 on the outer rail assembly 1 acts on the lock pin 5 to unlock the locking between the middle rail assembly 2 and the inner rail assembly 3, the reliable locking between the outer rail assembly 1 and the middle rail assembly 2 can be achieved synchronously.
The utility model is simple in operation, think about ingenious reasonable, effectively promoted stability and the reliability that the slide rail used, the practicality is good.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (5)
1. The utility model provides a lock after double insurance, includes from interior to exterior, sliding connection's between adjacent interior rail subassembly (3), well rail subassembly (2) and outer rail subassembly (1), its characterized in that: the inner side surface of the rear end of the outer rail assembly (1) protrudes inwards to form a bulge (6), the outer side surface of the front end of the inner rail assembly (3) protrudes outwards to form the same bulge (6), the front end of the middle rail assembly (2) is provided with a lock pin (5) which slides along the width direction, and the lock pin (5) penetrates through the middle rail assembly (2) inwards and outwards; two clamping positions for clamping the lock pin (5) are continuously arranged on the bulge (6) along the length direction; when the lock pin (5) is clamped in one of the bulges (6), the other bulge (6) acts on the lock pin (5) to enable the lock pin to move upwards and separate from the clamped bulge (6), and meanwhile, the lock pin (5) is clamped in the bulge (6) enabling the lock pin to move upwards.
2. A double safety rear lock as defined in claim 1, wherein: the structure of the bulge (6) is as follows: the L-shaped body comprises an L-shaped body (61), wherein a first inclined surface (63) and a second inclined surface (65) are sequentially and forwardly arranged on a horizontal arm of the L-shaped body (61), a first concave point (62) is formed by sinking between a longitudinal arm of the L-shaped body (61) and the first inclined surface (63), and a second concave point (64) is formed by sinking between the first inclined surface (63) and the second inclined surface (65); the first concave point (62) and the second concave point (64) form two clamping positions for locking the bulge (6) and the lock pin (5).
3. A double safety rear lock as defined in claim 2, wherein: the height of the vertical arm of the L-shaped body (61) is higher than that of the first inclined plane (63), and the height of the first inclined plane (63) is higher than that of the second inclined plane (65).
4. A double safety rear lock as defined in claim 1, wherein: the front end of the middle rail component (2) is provided with a sliding groove (21) along the width direction, the sliding groove (21) penetrates through the middle rail component (2) from inside to outside, and the lock pin (5) is slidably arranged in the sliding groove (21).
5. A double safety rear lock as defined in claim 4, wherein: the lock pin (5) is also provided with a torsion spring (4) between the middle rail components (2), and the torsion spring (4) enables the lock pin (5) to reset after sliding along the sliding groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022753241.7U CN214465597U (en) | 2020-11-24 | 2020-11-24 | Double-safety rear lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022753241.7U CN214465597U (en) | 2020-11-24 | 2020-11-24 | Double-safety rear lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214465597U true CN214465597U (en) | 2021-10-22 |
Family
ID=78183951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022753241.7U Active CN214465597U (en) | 2020-11-24 | 2020-11-24 | Double-safety rear lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214465597U (en) |
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2020
- 2020-11-24 CN CN202022753241.7U patent/CN214465597U/en active Active
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