Unfolding locking structure of sliding rail

Abstract

The utility model provides an unfolding locking structure of a sliding rail, the sliding rail comprises an outer rail, a middle rail and an inner rail, the middle rail and the inner rail are locked and connected through a locking mechanism after the sliding rail is unfolded, and an unlocking mechanism is arranged on the inner side of the inner rail; the locking mechanism comprises an inner rail unfolding lock and a baffle, the baffle protrudes out of the middle rail and perpendicularly faces the inner rail, a rectangular clamping groove is formed in one side of the middle of the inner rail unfolding lock, an elastic piece is arranged on the other side of the middle of the inner rail unfolding lock, one end of the inner rail unfolding lock is elastically and rotationally connected with the inner rail, and when the baffle is clamped in the clamping groove, the middle rail and the inner rail are locked. The unlocking mechanism comprises a push rod, the push rod is in sliding connection with the inner rail, one end of the push rod is matched with a driving part of the inner rail unfolding lock, the other end of the push rod extends to the outer side end of the inner rail, and the push rod pushes the driving part to enable the inner rail unfolding lock to rotate towards the elastic piece to unlock the middle rail and the inner rail. The locking mechanism is arranged at the unfolding connecting position of the inner rail and the middle rail, locking is stable, and safety is high; and a double-unlocking mechanism is further arranged, so that unlocking is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of slide rails, in particular to an unfolding and locking structure of a slide rail. Background Art

[0002] The three-section slide rail has the advantages of small occupied space, strong load-bearing capacity, etc., and is therefore widely used in fields such as financial self-service equipment, servers, storage cabinets, etc. The three-section slide rail includes an outer rail, a middle rail, and an inner rail. When in use, generally the outer rail is fixed, and under the action of pulling or pushing, the middle rail and the inner rail slide out or slide back to realize the telescoping of the slide rail.

[0003] However, the existing three-section slide rails generally do not have an unfolding and locking device. In the state where the middle rail and the inner rail are fully unfolded, due to the small limiting resistance between the components, the end of the inner rail is extremely easy to close when being collided by an external force in the moving direction of the slide rail, affecting the use experience and even causing safety accidents such as pinching hands. Summary of the Utility Model

[0004] The utility model aims to provide an unfolding and locking structure of a slide rail to overcome the deficiencies existing in the prior art.

[0005] To solve the above technical problems, the technical solution of the utility model is: an unfolding and locking structure of a slide rail, the slide rail includes an outer rail, a middle rail, and an inner rail connected in sequence. After unfolding, the outer end of the middle rail and the inner end of the inner rail are locked and connected through a locking mechanism, and an unlocking mechanism for releasing the locked state between the middle rail and the inner rail is arranged on the inner side of the inner rail close to the middle rail; the locking mechanism includes an inner rail unfolding lock and a baffle plate. The baffle plate is arranged at the outer end of the middle rail and protrudes from the middle rail vertically towards the inner rail. One side of the middle part of the inner rail unfolding lock is provided with a rectangular card slot for clamping with the baffle plate, a limiting slot for restricting the rotation angle of the inner rail unfolding lock is arranged in the middle of the middle part, and an elastic member for driving the inner rail unfolding lock to move towards the baffle plate is arranged on the other side of the middle part. One end of the inner rail unfolding lock is elastically rotatably connected to the inner side end of the inner rail through a pin shaft and an elastic member. When the baffle plate is clamped in the card slot, the middle rail and the inner rail are locked; the unlocking mechanism includes a push rod, the push rod is slidably connected to the inner rail, one end of the push rod is matched with the driving part of the inner rail unfolding lock, and the other end extends to the outer side end of the inner rail. When the push rod is pushed inward at the outer side end of the inner rail, the push rod pushes the driving part to make the inner rail unfolding lock rotate towards the elastic member, and the baffle plate disengages from the card slot to release the lock between the middle rail and the inner rail.

[0006] Further, in the above unfolding and locking structure of the slide rail, the elastic member is a torsion spring. One end of the elastic member is sleeved on a pin, and the other end is provided with two torsion rods. One of the torsion rods abuts against the side wall of the inner rail, and the other torsion rod abuts against the inner rail unfolding lock. A limiting plate is arranged on the inner rail unfolding lock, and the limiting plate and the side surface of the inner rail unfolding lock close to the inner rail form a step. The torsion rod on the elastic member abutting against the inner rail unfolding lock is arranged in the step.

[0007] Further, for the unfolding and locking structure of the above-mentioned slide rail, a first inclined surface is provided on the driving part, and a second inclined surface opposite to the first inclined surface is provided at one end of the push rod that cooperates with the driving part. The first inclined surface and the second inclined surface cooperate with each other, and a plurality of arc-shaped bosses are provided on the second inclined surface.

[0008] Further, for the unfolding and locking structure of the above-mentioned slide rail, a guiding inclined surface is provided on one side of the card slot close to the driving part, and the guiding inclined surface is connected to the first inclined surface.

[0009] Further, for the unfolding and locking structure of the above-mentioned slide rail, the unlocking mechanism further includes an inner rail sliding member provided at the outer side end of the inner rail. The inner rail sliding member is slidably connected to the inner rail and includes a main board and a pushing part protruding from the main board. The pushing part is provided in the middle of the main board; a T-shaped groove is provided at one end of the main board close to the push rod, and a T-shaped connecting part inserted into the T-shaped groove is provided at one end of the push rod close to the inner rail sliding member. The push rod is connected to the inner rail sliding member through the T-shaped connecting part.

[0010] Further, for the unfolding and locking structure of the above-mentioned slide rail, a plurality of waist-shaped sliding holes one are provided on the push rod along the sliding direction of the push rod. The push rod is slidably connected to the inner rail through a rivet inserted into the waist-shaped sliding holes one; a plurality of waist-shaped sliding holes two are further provided on the main board on both sides of the pushing part. The inner rail sliding member is slidably connected to the inner rail through a rivet inserted into the waist-shaped sliding holes two, and trapezoidal bosses for limiting are provided on both sides of the middle of the waist-shaped sliding holes two.

[0011] Further, for the unfolding and locking structure of the above-mentioned slide rail, the unlocking mechanism further includes a spring piece provided at the outer side end of the inner rail. The spring piece includes a hinged part provided in the middle of the spring piece and pressing plates and elastic plates provided on both sides of the hinged part. The hinged part is hinged to the inner rail, the pressing plates and the elastic plates are arranged at an angle, and the elastic plate is inserted into the pushing part of the inner rail sliding member and is an elastic inclined plate that cooperates with the pushing part.

[0012] Further, for the unfolding and locking structure of the above-mentioned slide rail, the unlocking mechanism further includes a return spring and a spring seat. The spring seat is fixed on the inner side surface of the inner rail. A spring groove parallel to the push rod is provided on the spring seat. The return spring is arranged in the spring groove, and the inner side end of the return spring is connected to the side wall of the spring groove, and the outer side end is connected to a spring connecting part on the push rod.

[0013] Further, for the unfolding and locking structure of the above-mentioned slide rail, the spring seat is made of plastic, and a sliding table parallel to the spring groove is provided on it. A sliding groove connected to the spring connecting part is provided on the side surface of the push rod, and the sliding groove is slidably connected to the sliding table.

[0014] Further, in the unfolding and locking structure of the above slide rail, an unlocking handle is further provided on the inner rail unfolding lock. The unlocking handle is connected to the driving part and extends towards the push rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows: A locking mechanism is provided at the unfolding connection of the inner rail and the middle rail, and the locking mechanism is stably locked and will not be unlocked when subjected to the force in the moving direction of the slide rail, with high safety; A double unlocking mechanism is also provided on the inner rail, which is convenient and fast to unlock and will not affect the locking performance of the locking mechanism due to accidental touch. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is an exploded schematic view of the unfolding and locking structure of the slide rail of the present utility model;

[0018] Figure 2 Figure 1 Partial enlarged schematic view of A in;

[0019] Figure 3 Figure 1 Partial enlarged schematic view of B in;

[0020] Figure 4 It is a schematic structural view of the unfolding and locking structure of the slide rail of the present utility model;

[0021] Figure 5 It is a schematic view of the inner side of the inner rail of the unfolding and locking structure of the slide rail of the present utility model;

[0022] Figure 6 It is a connection schematic view of the inner rail sliding part and the elastic piece of the unfolding and locking structure of the slide rail of the present utility model;

[0023] In the figure: 1. Outer rail; 2. Middle rail; 21. Baffle; 3. Inner rail;

[0024] 4. Locking mechanism; 41. Inner rail unfolding lock; 411. Card slot; 412. Driving part; 413. Limiting plate; 414. Guiding inclined plane; 415. Unlocking handle; 416. Limiting groove; 42. Elastic piece;

[0025] 5. Unlocking mechanism; 51. Push rod; 511. Arc-shaped boss; 512. T-shaped connecting part; 513. First kidney-shaped sliding hole; 514. Spring connecting part; 515. Chute; 52. Inner rail sliding part; 521. Main board; 522. Pushing part; 523. T-shaped groove; 524. Second kidney-shaped sliding hole; 525. Trapezoidal boss; 53. Elastic piece; 531. Hinge part; 532. Pressing plate; 533. Elastic plate; 54. Return spring; 55. Spring seat; 551. Slide table. Detailed implementation mode

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Embodiment 1

[0028] As Figures 1-6As shown, a deployment locking structure of a slide rail, the slide rail comprises an outer rail 1, a middle rail 2, and an inner rail 3 connected in sequence. After deployment, the outer end of the middle rail 2 is locked and connected with the inner end of the inner rail 3 by a locking mechanism 4, that is, a locking mechanism is arranged at the deployment connection between the inner rail 3 and the middle rail 2, and an unlocking mechanism 5 for releasing the locking state of the middle rail 2 and the inner rail 3 is arranged on the inner side of the inner rail 3 close to the middle rail 2; the locking mechanism 4 comprises an inner rail deployment lock 41 and a baffle 21, the baffle 21 is arranged at the outer end of the middle rail 2, and protrudes from the middle rail 2 and is arranged vertically toward the inner rail 3, a rectangular card groove 411 engaged with the baffle 21 is arranged on one side of the middle part of the inner rail deployment lock 41, a limiting groove 416 for limiting the rotation angle of the inner rail deployment lock 41 is arranged in the middle of the middle part, and a positioning groove 416 for driving the inner rail deployment lock 41 toward the baffle 21 is arranged on the other side of the middle part The elastic member 42 of the plate 21 moves, and one end of the inner rail deployment lock 41 is elastically rotatably connected with the inner side end of the inner rail 3 through the pin shaft and the elastic member 42. When the baffle 21 is clamped in the clamping groove 411, the middle rail 2 is locked with the inner rail 3. The baffle 21 is a rectangular flat plate that matches the clamping groove 411. The baffle 21 will not be separated from the clamping groove when subjected to the force in the moving direction of the slide rail; the unlocking mechanism 5 includes a push rod 51, which is slidably connected with the inner rail 3. One end of the push rod 51 matches with the driving part 412 of the inner rail deployment lock 41, and the other end extends to the outer side end of the inner rail 3. The push rod 51 is pushed inward at the outer side end of the inner rail 3. The push rod 51 pushes the driving part 412 to make the inner rail deployment lock 41 rotate toward the elastic member 42, and the baffle 21 is separated from the clamping groove 411 to release the locking of the middle rail 2 and the inner rail 3. After the middle rail 2 and the inner rail 3 are unfolded, the baffle 21 is stuck in the slot 411 of the inner rail unfolding lock 41, locking the inner end of the inner rail 3 with the outer end of the middle rail 2, and the baffle 21 and the slot 411 are locked stably, and will not be disengaged from the slot to unlock when subjected to the force in the moving direction of the slide rail, which has high safety; when the inner rail 3 needs to be closed, the push rod 51 is pushed, and the push rod 51 and the driving part 412 cooperate to push the inner rail unfolding lock 41 toward the elastic member 42 to rotate, so that the baffle 21 is disengaged from the slot 411 to unlock the middle rail 2 and the inner rail 3, and the push rod 51 is a long rod arranged along the inner side of the inner rail 3, which is not easy to be accidentally touched, and the push rod 51 also extends to the outer end of the inner rail 3, which can facilitate the unlocking operation.

[0029] like Figures 1-5 As shown, in the above structure, the unlocking mechanism 5 also includes an inner rail sliding member 52 disposed at the side end of the inner rail outer 3, the inner rail sliding member 52 is slidably connected with the inner rail 3, and includes a main board 521 and a pushing portion 522 protruding from the main board 521, the pushing portion 522 is disposed in the middle of the main board 521; the main board 521 is provided with a T-shaped slot 523 at one end close to the push rod 51, the push rod 51 is provided with a T-shaped connecting portion 512 embedded in the T-shaped slot 523 at one end close to the inner rail sliding member 52, and the push rod 51 is connected to the inner rail sliding member 52 via the T-shaped connecting portion 512. When unlocking, the push rod 51 is moved by pushing the pushing portion 52, and the operation is more convenient.

[0030] As shown Figure 1 , 4 , as shown in Figure 5, a plurality of oblong sliding holes 513 are provided on the push rod 51 along the sliding direction of the push rod 51. The push rod 51 is slidably connected to the inner rail 3 through rivets inserted into the oblong sliding holes 513. A plurality of oblong sliding holes 524 are further provided on the main board 521 on both sides of the pushing portion 522. The inner rail sliding member 52 is slidably connected to the inner rail 3 through rivets inserted into the oblong sliding holes 524. Trapezoidal bosses 525 for limiting are provided on both sides of the middle of the oblong sliding holes 524. Push the pushing portion 52 with a certain force to make the rivet overcome the limiting effect of the trapezoidal boss 525 and slide over the trapezoidal inclined surface of the trapezoidal boss 525 to the other section of the oblong sliding hole 524, thereby pushing the push rod 51 to move. The oblong sliding hole 513 and the oblong sliding hole 524 can limit the moving stroke of the push rod 51 to ensure the cooperation between the push rod 51 and the driving portion 412, while the trapezoidal boss 525 can prevent the pushing portion 522 from being accidentally touched to cause the inner rail sliding member 52 to move, having a certain locking effect.

[0031] In addition, as shown Figure 1 , 3 -5, the unlocking mechanism 5 further includes a spring piece 53 provided at the outer end of the inner rail 3. The spring piece 53 includes a hinged portion 531 provided in the middle of the spring piece 53, a pressing plate 532 and a spring plate 533 provided on both sides of the hinged portion 531. The hinged portion 531 is hinged to the inner rail 3. The pressing plate 532 and the spring plate 533 are arranged at an angle. The spring plate 533 is inserted into the pushing portion 522 of the inner rail sliding member 52 and is an elastic inclined plate for cooperating with the pushing portion 522. When unlocking, press the pressing plate 532 to make the spring plate 533 rotate towards the pushing portion 522 of the inner rail sliding member, so that the pushing portion 522 slides in a direction away from the spring piece 53, further improving the operation convenience. And the pressing direction is perpendicular to the moving direction of the push rod 51, and the unlocking mechanism will not be actuated due to accidental contact with the inner rail 3, affecting the locking performance of the locking mechanism.

[0032] Embodiment 2

[0033] Based on the structure of Embodiment 1, as shown Figure 1 , 2As shown in FIGS. 4 and 5, the elastic member 42 is a torsion spring. One end of the elastic member 42 is sleeved on a pin, and the other end is provided with two torsion bars. One torsion bar abuts against the side wall of the inner rail 3, and the other torsion bar abuts against the inner rail unfolding lock 41. A limiting plate 413 is provided on the inner rail unfolding lock 41. The limiting plate 413 and the side surface of the inner rail unfolding lock 41 close to the inner rail 3 form a step. The torsion bar of the elastic member 42 that abuts against the inner rail unfolding lock 41 is arranged in the step to ensure the connection between the elastic member 42 and the inner rail unfolding lock 41. And through the arrangement of the elastic member 42, without increasing the applied force, the baffle 21 is stuck at the bottom of the card slot 411, ensuring the stable locking of the inner rail 3 and the middle rail 2.

[0034] As Figure 1 shown, a first inclined surface is provided on the driving part 412, and a second inclined surface opposite to the first inclined surface is provided at one end of the push rod 51 that cooperates with the driving part 412. The first inclined surface and the second inclined surface cooperate with each other, and a plurality of arc-shaped protrusions 511 are provided on the second inclined surface. The wedge-shaped cooperation between the first inclined surface and the second inclined surface enables the push rod 51 to move towards the inner end, driving the inner rail unfolding lock 41 to rotate towards the elastic member 42 against the elastic force of the elastic member 42, and the card slot 411 is disengaged from the baffle 21 to achieve unlocking; and a plurality of arc-shaped protrusions 511 are provided on the second inclined surface, reducing the driving friction force between the first inclined surface and the second inclined surface, making the operation more labor-saving. And a guiding inclined surface 414 is provided on one side of the card slot 411 close to the driving part 412. The guiding inclined surface 414 is connected to the first inclined surface. This arrangement can facilitate the accurate snapping of the baffle 21 into the card slot 411 when the inner rail 3 unfolds.

[0035] As Figure 1 、 2 As shown in FIGS. 4 and 5, the unlocking mechanism 5 further includes a return spring 54 and a spring seat 55. The spring seat 55 is fixed on the inner side surface of the inner rail 3. A spring groove parallel to the push rod 51 is provided on the spring seat 55. The return spring 54 is arranged in the spring groove, and the inner end of the return spring 54 is connected to the side wall of the spring groove, and the outer end is connected to the spring connection part 514 on the push rod 51. Through the arrangement of the return spring 54, the push rod 51 can be automatically reset after unlocking.

[0036] In the above structure, as Figure 2 shown, a sliding table 551 parallel to the spring groove is provided on the spring seat 55. A sliding groove 515 connected to the spring connection part 514 is provided on the side surface of the push rod 51. The sliding groove 515 is slidably connected to the sliding table 551. Through the arrangement of the sliding groove 515 and the sliding table 551, the movement of the push rod 51 is guided, making the movement direction of the push rod 51 accurate and ensuring the stability of the unlocking action; and the spring seat 55 is made of plastic, and the push rod 51 is made of metal with better wear resistance than the spring seat 55, reducing the wear of the push rod 51, reducing the maintenance cost, and ensuring the service life of the slide rail.

[0037] Embodiment 3

[0038] Based on the structure of Embodiment 1 or 2, as Figure 1 、 4 、as shown in 5, an unlocking handle 415 is further provided on the inner rail unfolding lock 41. The unlocking handle 415 is connected to the driving part 412 and extends towards the push rod 51. The unlocking handle 415 and the unlocking mechanism 5 are combined into a double unlocking device. By pressing the unlocking handle 415, the inner rail unfolding lock 41 can be rotated towards the elastic member 42, directly separating the baffle 21 from the card slot 411 to complete unlocking, which is convenient for installation and maintenance.

[0039] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An unfolding and locking structure of a slide rail, the slide rail comprising an outer rail, a middle rail, and an inner rail connected in sequence, characterized in that: The outer end of the middle rail and the inner end of the inner rail are locked by the locking mechanism, and the inner side of the inner rail is provided with an unlocking mechanism for releasing the locking state of the middle rail and the inner rail; the locking mechanism comprises an inner rail deployment lock and a baffle, the baffle is arranged at the outer end of the middle rail and protrudes from the middle rail and is arranged vertically toward the inner rail, and a rectangular clamping groove is provided on one side of the middle portion of the inner rail deployment lock and is clamped with the baffle, and a limiting groove is provided in the middle of the middle portion to limit the rotation angle of the inner rail deployment lock, and an elastic member is provided on the other side of the middle portion to drive the inner rail deployment lock to move toward the baffle, and one end of the inner rail deployment lock is elastically rotatably connected with the inner end of the inner rail through a pin shaft and an elastic member, and the middle rail is locked with the inner rail when the baffle is clamped in the clamping groove; the unlocking mechanism comprises a push rod, which is slidably connected with the inner rail, one end of the push rod cooperates with the driving part of the inner rail deployment lock, and the other end extends to the outer end of the inner rail, and the push rod pushes the driving part to make the inner rail deployment lock rotate toward the elastic member, and the baffle is disengaged from the clamping groove to release the locking of the middle rail and the inner rail.

2. The unfolding and locking structure of the slide rail according to claim 1, characterized in that: The elastic member is a torsion spring, one end of which is sleeved on the pin, and the other end is provided with two torsion bars, one of which abuts against the side wall of the inner rail, and the other abuts against the inner rail deployment lock. A limiting plate is provided on the inner rail deployment lock, and the limiting plate and the side surface of the inner rail deployment lock close to the inner rail form a step, and the torsion bar on the elastic member abutting against the inner rail deployment lock is arranged in the step.

3. The unfolding and locking structure of the slide rail according to claim 1, characterized in that: The driving part is provided with a first inclined surface, and one end of the push rod that cooperates with the driving part is provided with a second inclined surface arranged opposite to the first inclined surface. The first inclined surface cooperates with the second inclined surface, and the second inclined surface is provided with a plurality of arc-shaped bosses.

4. The unfolding and locking structure of the slide rail according to claim 3, characterized in that: A guiding inclined surface is provided on one side of the clamping slot close to the driving part, and the guiding inclined surface is connected to inclined surface one.

5. The unfolding and locking structure of the slide rail according to claim 1, characterized in that: The unlocking mechanism also includes an inner rail sliding member arranged at the outer end of the inner rail, the inner rail sliding member is slidably connected to the inner rail, and includes a main board and a pushing portion protruding from the main board, and the pushing portion is arranged in the middle of the main board; a T-shaped slot is provided at one end of the main board close to the push rod, and a T-shaped connecting portion is provided at one end of the push rod close to the inner rail sliding member, and the push rod is connected to the inner rail sliding member via the T-shaped connecting portion.

6. The unfolding and locking structure of the slide rail according to claim 5, characterized in that: The push rod is provided with a plurality of waist-shaped sliding holes 1 arranged along the sliding direction of the push rod, and the push rod is slidably connected to the inner rail through a rivet inserted in the waist-shaped sliding hole 1; the main board is also provided with a plurality of waist-shaped sliding holes 2 located on both sides of the pushing part, and the inner rail sliding part is slidably connected to the inner rail through rivets inserted in the waist-shaped sliding hole 2, and trapezoidal bosses for limiting are provided on both sides of the middle part of the waist-shaped sliding hole 2.

7. The unfolding and locking structure of the slide rail according to claim 5, characterized in that: The unlocking mechanism also includes a spring sheet arranged at the outer end of the inner rail, and the spring sheet includes a hinged portion arranged in the middle of the spring sheet and a pressing plate and a spring plate arranged on both sides of the hinged portion. The hinged portion is hinged to the inner rail, and the pressing plate and the spring plate are arranged at an angle. The spring plate is inserted into the pushing portion of the inner rail sliding member and is an elastic inclined plate that cooperates with the pushing portion.

8. The unfolding and locking structure of the slide rail according to any one of claims 5 to 7, characterized in that: The unlocking mechanism also includes a return spring and a spring seat. The spring seat is fixed to the inner side of the inner rail. The spring seat is provided with a spring groove parallel to the push rod. The return spring is arranged in the spring groove, and the inner end of the return spring is connected to the side wall of the spring groove, and the outer end is connected to the spring connecting part on the push rod.

9. The unfolding and locking structure of the slide rail according to claim 8, characterized in that: The spring seat is made of plastic, and is provided with a slide table arranged parallel to the spring groove. The side of the push rod is provided with a slide groove connected to the spring connecting part, and the slide groove is slidably connected to the slide table.

10. The unfolding and locking structure of the slide rail according to claim 1 or 7, characterized in that: The inner rail deployment lock is also provided with an unlocking handle, which is connected to the driving part and extends toward the push rod.

Images