CN2691376Y - Drawer slide two-way positioning assembly - Google Patents

Abstract

A bidirectional positioning assembly for a drawer slide rail. In order to provide a furniture part which can prevent the inner rail from sliding freely and is convenient to use, the utility model is provided, which comprises a positioning group arranged on the inner rail, a stop seat arranged at the opening end of the middle rail and at least one connecting rod arranged on the inner rail in a sliding way; the positioning group comprises a front positioning arm and a rear positioning arm which are oppositely and correspondingly pivoted on the inner side of the inner rail and controlled by the connecting rod, and an elastic element which elastically pushes the front positioning arm and the rear positioning arm; the front positioning arm and the rear positioning arm are respectively provided with inclined planes in opposite directions and a first clamping part connected with the inclined planes; the blocking seat assembled at the opening end of the middle rail is convexly provided with a corresponding blocking part which can be clamped between the first clamping parts of the front/rear positioning arms along the inclined surface of the front/rear positioning arms to form bidirectional positioning.

Description

Drawer slide two-way positioning assembly

technical field

The utility model belongs to furniture parts, in particular to a bidirectional positioning assembly of drawer slide rails.

Background technique

As shown in FIG. 14 , a conventional three-section drawer slide rail includes an outer rail 10 , a middle rail 20 , an inner rail 30 and a sliding member 40 disposed between the middle rail 20 and the inner rail 30 .

During use, the inner rail 30 can be smoothly slid by the sliding member 40 .

At the same time, the inner rail 30 and the middle rail 20 can also optionally be provided with a locking member 301 and a stopper 201 to provide a positioning function when the inner rail 30 is pulled out.

The locking member 301 is disposed inside the inner rail 30 and has a convex portion 302 . The stopper 201 is located at the front end of the middle rail 20 and is provided with a stopper 202 .

When the inner rail 30 inserted into the middle rail 20 is stretched forward by the operator, the stop block 202 of the stopper 201 can be properly locked against the convex part 302 of the locking member 301, so as to prevent the inner rail 30 from detaching from the middle rail 30 forward. Track 20.

Although the locking member 301 and the stopper 201 of the known drawer slide rail can prevent the inner rail 30 from accidentally breaking away from the positioning function of the middle rail 20 caused by excessively pulling the inner rail 30 forward, but when the operator wants to pull the middle rail outward 20 When using the items placed on the drawer, such as keyboards or overhauling the drawer machine, the locking member 301 and the stopper 201 cannot prevent the inner rail 30 from sliding into the middle rail 20 again at the same time, and the drawer is often stressed during use. The situation of natural inward movement, therefore, there is a certain degree of inconvenience in use.

Contents of the invention

The purpose of the utility model is to provide a drawer slide rail two-way positioning assembly which prevents the inner rail from sliding arbitrarily and is easy to use.

The utility model includes a positioning group arranged on the inner rail, a blocking seat arranged at the opening end of the middle rail and at least one connecting rod slidably arranged on the inner rail; The front and rear positioning arms and the elastic elements that elastically push the front and rear positioning arms; the front and rear positioning arms respectively have opposite inclined surfaces and first latching parts connected with the inclined surfaces; The seat protrusion is corresponding and can be locked between the first locking parts of the front/rear positioning arm along the inclined surface of the front/rear positioning arm to form a bidirectional positioning blocking part.

in:

One end of the connecting rod is provided with a gripping part, and the other end is provided with two recessed parts forming inclined sides and two shoulders at intervals; The second detent part of the rod shoulder.

One end of the connecting rod is provided with a gripping part, and the other end is provided with a single concave part and a single shoulder; It has a single shoulder/recess on both sides of the sloped edge to locate the second catch of the arm.

The connecting rod is provided with an elastic element for directly driving the front and rear positioning arms to pivot so that the connecting rod has elastic reset capability.

The elastic element is accommodated in the sleeve set on the inner rail and supports the rod segment of the connecting rod; the rod segment of the connecting rod is provided with a convex body abutting against the elastic element.

One end of the connecting rod is pivotally connected to the other end of the lever of the rear positioning arm without the first locking part, and the other end of the rear positioning arm is pulled down by the connecting rod to drive the first locking part to move up; the front and rear positioning arms are respectively equipped with Lugs that rest against each other and cause them to pivot and oscillate synchronously.

The blocking portion of the blocking seat is directly punched and formed on the open end of the middle rail.

A base is provided between the inner surface of the inner rail and the front and rear positioning arms; the base is provided with a recess for fixing and pushing the elastic elements of the front and rear positioning arms.

An auxiliary link including a grip portion and a shoulder is provided on the inner rail; the rear positioning arm is provided with a second stepped portion accommodating the shoulder of the auxiliary link and a third locking portion abutting against the shoulder of the auxiliary link .

The front positioning arm at the end opposite to the rear positioning arm is provided with lugs, so that the front and rear positioning arms have no synchronously driven interlocking relationship.

The opposite edge of the base and the auxiliary connecting rod forms a concave stepped surface for the sleeve rod section, and forms a groove in the base for the assembly of the elastic element; The convex body of the elastic reset of the rod.

Since the utility model includes a positioning group arranged on the inner rail, a blocking seat arranged at the opening end of the middle rail, and at least one connecting rod slidably arranged on the inner rail; The controlled front and rear positioning arms and the elastic elements that elastically push the front and rear positioning arms; the front and rear positioning arms respectively have opposite inclined surfaces and first locking parts connected with the inclined surfaces; The blocking seat is protruded correspondingly and can be locked between the first engaging parts of the front/rear positioning arm along the inclined surface of the front/rear positioning arm to form a bidirectional positioning blocking part. During assembly, the positioning group is pivotally connected to the inner rail, and the inner rail will be set on the middle rail and the middle rail will be set on the outer rail in sequence. At this time, the front and rear positioning arms are deflected to be locked on the upper edge of the side plate of the inner rail by the elastic pressing effect of the elastic element, and the connecting rod part is accommodated in the front and rear positioning arms; when the operator pulls the inner rail forward to the predetermined In the operating position, the blocking part set on the blocking seat at the opening end of the middle rail first touches the front positioning arm close to the front end of the inner rail; then, the blocking part pushes against the inclined surface of the front positioning arm, so that the front positioning arm moves counterclockwise Pivoting and deflecting at an angle, thereby, the blocking part can smoothly pass over the front positioning arm, and then be blocked by the first locking part of the rear positioning arm; at the same time, the front positioning arm close to the front end of the inner rail makes the blocking part pass over, Elastic reset; therefore, the utility model can use the first locking part of the front and rear positioning arms to lock the blocking part in both directions, so that the inner rail can be bidirectionally positioned on the predetermined operating position, so it can really improve the use of the drawer slide rail. Convenience; when the operator wants to push the inner rail into the middle rail, the operator pulls forward or pushes back to operate the connecting rod in both directions, so that the front and rear positioning arms will pivot toward the upper edge of the inner rail; thereby , the operator can release the front and rear positioning arms; the two-way locking relationship of the relative blocking part, so as to smoothly push the inner rail back into the middle rail or make the inner rail move forward from the middle rail; the operator releases the grip part And the front and rear positioning arms and the connecting rod are returned to the original unoperated state by the elastic pressing of the elastic element; not only prevent the inner rail from sliding arbitrarily, but also be easy to use, so as to achieve the purpose of the utility model.

Description of drawings

Fig. 1 is a schematic perspective view of the disassembled structure of the drawer slide rail assembled in Embodiment 1 of the present utility model.

Fig. 2 is a schematic perspective view of the rear view structure of the positioning arm according to the embodiment of the present invention.

Fig. 3 is a schematic side view of the structure of a drawer slide rail assembled according to an embodiment of the present utility model.

Fig. 4 is a schematic side view of the structure of a drawer slide rail assembled according to an embodiment of the present utility model (the inner rail is pulled out to a predetermined operating position).

Fig. 5 is a schematic side view of the structure of a drawer slide rail assembled according to an embodiment of the present utility model (the state of releasing the positioning of the inner rail).

Fig. 6 is a schematic side view of the structure of a drawer slide rail assembled in an embodiment of the present utility model (inner rail pushed into the middle rail state).

Fig. 7 is a schematic side view of the structure of a drawer slide rail assembled according to an embodiment of the present utility model (connecting rods are provided with elastic elements).

Fig. 8 is a schematic side view of the structure of the second drawer slide rail assembly of the utility model embodiment.

Fig. 9 is a schematic perspective view of the rear structure of the positioning arm according to Embodiment 2 of the present invention.

Fig. 10 is a schematic perspective view of the base structure of the second embodiment of the utility model.

Fig. 11 is a schematic side view of the structure of the second drawer slide rail assembled in the utility model embodiment (the auxiliary connecting rod is used to release the positioning state of the inner rail).

Fig. 12 is a schematic side view of the structure of the second drawer slide rail assembled in the utility model embodiment (with the connecting rod releasing the positioning state of the inner rail).

Fig. 13 is a schematic side view of the structure of the second drawer slide rail assembled in the utility model (the opposite end of the positioning arm is not provided with lugs).

Fig. 14 is a perspective view showing the exploded structure of a conventional three-section drawer slide rail.

Detailed ways

As shown in Figure 1, the utility model is assembled on the outer rail 10, the middle rail 20 sleeved in the outer rail 10, the inner rail 30 sleeved in the middle rail 20, arranged on the middle rail 20 and located On the drawer slide rail of the sliding aid 40 between the middle rail 20 and the inner rail 30 . The inner rail 30 and the middle rail 20 are slidably sleeved on the outer rail 10 through at least one rib slider 40 .

The inner rail 30 is further provided with a side plate 32 and at least one supporting base 31 .

Embodiment one

As shown in Fig. 1, Fig. 2 and Fig. 3, the utility model includes a positioning group 50 assembled on the inner surface of the inner rail 30, a connecting rod 70 and a blocking seat 60 assembled on the open end of the middle rail 20.

As shown in Figure 1, the positioning group 50 includes a front positioning arm 51, a rear positioning arm 51', an elastic element 52 elastically stuck between the front and rear positioning arms 51, 51', and a base set on the inner surface of the inner rail 30. The seat 53 and the pivoting element 54 for pivoting the front and rear positioning arms 51 , 51 ′ on the inner side of the inner rail 30 .

As shown in Fig. 1 and Fig. 2, the front and rear positioning arms 51, 51' respectively have opposite inclined surfaces 511, 511', first locking parts 512, 512' engaged with the inclined surfaces 511, 511', The inner first stepped portion 513, 513', the second locking portion 514, 514' formed at a proper position of the first stepped portion 513, 513' and the oppositely disposed concave portions 515, 515'.

As shown in Figure 3, the front and rear positioning arms 51, 51' are rotatably pivotally connected to the inner rail 30 in a correspondingly facing manner by two pivot elements 54, and the tilting of the front and rear positioning arms 51, 51' The surfaces 511, 511' can be pushed by the blocking seat 60 provided at the opening end of the middle rail 20 to pivot and swing; the first locking parts 512, 512' of the front and rear positioning arms 51, 51' face each other to form a locking space, And make the first stepped portion 513, 513' of the front and rear positioning arms 51, 51' face the inner side of the inner rail 30; Resist against the recesses 515 , 515 ′ of the front and rear positioning arms 51 , 51 ′, and be fixed on the inside of the inner rail by the base 53 .

As shown in Figures 1 and 3, the blocking seat 60 assembled at the opening end of the middle rail 20 is bent outward to form a blocking portion 61 facing the inner rail 30, the blocking portion 61 corresponds to and timely pushes the front and rear positioning arms 51, 51 The inclined surfaces 511, 511' of ' make the front and rear positioning arms 51, 51' pivot and swing and correspond to and engage with the first locking parts 512, 512' of the front and rear positioning arms 51, 51' facing each other. in the control space.

The connecting rod 70 is movably attached to the inner rail 30 by at least one support seat 31 on the inner rail 30. One end is provided with a gripping portion 71, and the other end is provided with two recesses 72 at intervals and two recesses respectively located in each recess. The shoulder 73 of 72 rear ends.

The grip portion 71 allows the operator to pull the connecting rod 70 forward with fingers to release the latching relationship formed by the first latching portions 512, 512' of the front and rear positioning arms 51, 51'.

The two recesses 72 allow the connecting rod 70 to match the outer edge of the second locking part 514, 514' when it is accommodated in the first stepped part 513, 513' of the front and rear positioning arms 51, 51'; the two shoulders 73 When the operator pulls the connecting rod 70 forward, it can be used to push against the edges of the second locking parts 514, 514' of the front and rear positioning arms 51, 51', or use the inclined sides of the concave part 72 to push against the front and rear positioning The edges of the second locking portions 514, 514' of the arms 51, 51' are used to make the front and rear positioning arms 51, 51' pivot and swing.

As shown in FIG. 3 , during assembly, the positioning group 50 is pivotally connected to the inner rail 30 , and will sequentially fit the inner rail 30 on the middle rail 20 and the middle rail 20 on the outer rail 10 . In this state, the front and rear positioning arms 51, 51' are deflected to be locked on the upper edge of the side plate 32 of the inner rail 30 by the elastic pressing effect of the elastic element 52. The connecting rod 70 is partially accommodated in the first stepped parts 513, 513' of the front and rear positioning arms 51, 51', and the two concave parts 72 of the connecting rod 70 are just matched outside the second locking parts 514, 514' edge.

As shown in FIG. 4 , when the operator pulls the inner rail 30 forward to a predetermined operating position, the blocking portion 61 assembled on the blocking seat 60 at the opening end of the middle rail 20 first touches the front positioning arm 51 near the front end of the inner rail 30 ; Next, the blocking portion 61 pushes against the inclined surface 511 of the front positioning arm 51, so that the front positioning arm 51 pivots and deflects at an angle in the counterclockwise direction, whereby the blocking portion 61 can smoothly pass over the front positioning arm 51, and is then received The first locking part 512' of the rear positioning arm 51' is stuck against the block; at the same time, after the front positioning arm 51 close to the front end of the inner rail 30 passes the blocking part 61, it will be reset again due to the elastic pressing of the elastic element 52; therefore In this utility model, the first locking parts 512, 512' of the front and rear positioning arms 51, 51' can be used to engage the two-way blocking parts 61, so that the inner rail 30 can be bidirectionally positioned on the predetermined operating position, so it is indeed It can improve the convenience of using the drawer slide rail.

As shown in Fig. 5 and Fig. 6, when the operator wants to push the inner rail 30 into the middle rail 20, the operator uses the grip part 71 of the connecting rod 70 to pull forward or push back to operate the connecting rod 70 bidirectionally, so that The two shoulders 73 of the connecting rod 70 or the inclined sides of the notch 72 push against the edges of the second engaging portions 514 , 514 ′ of the front and rear positioning arms 51 , 51 ′. Then, the front and rear positioning arms 51, 51' will pivot toward the upper edge of the inner rail 30. In this way, the operator can release the two-way locking relationship between the front and rear positioning arms 51, 51' relative to the blocking portion 61, so as to smoothly push the inner rail 30 back into the middle rail 20 or make the inner rail 30 move forward out of the middle. Track 20. Finally, the operator releases the grip portion 71 to make the front and rear positioning arms 51, 51' and the connecting rod 70 return to the original unoperated state by the elastic pressing of the elastic element 52.

Furthermore, as shown in Fig. 1, Fig. 2 and Fig. 3, the opposite ends of the front and rear positioning arms 51, 51' of the positioning group 50 of the present invention can also be optionally extended to form two lugs 516, 516' that overlap each other, In this way, the shoulder 73 of the connecting rod 70 only needs to push against the second latching portion 514 or 514' of the front or rear positioning arm 51 or 51', and the two lugs 516, 516' can be used to abut against each other. The one on the lower side pushes up against the one on the upper side, so as to drive the rear or front positioning arms 51 ′ or 51 to generate pivotal swing synchronously.

In addition, the blocking portion 61 of the blocking seat 60 can also be directly stamped on the opening end of the middle rail 20 . The positioning group 50 can also omit the base 53 so that the elastic element 52 is directly fixed on the inner rail 30 .

As shown in Fig. 7, the connecting rod 70' itself can also optionally be provided with an elastic element 81, so as to make the elastic return action of the connecting rod 70' more reliable. That is to say, on the inner rail 30, the sleeve block 80 of the elastic element 81 supports the rod section of the connecting rod 70'; the rod section of the connecting rod 70' is provided with a convex body 74 that resists and pushes against the compressed elastic element 81, so as to Resetting capability is provided for the link 70'. It is also possible to choose to change the shoulder 73 of the connecting rod 70' relative to the rear positioning arm 51' as the active end, so that the active end of the connecting rod 70' is pivotally connected to the other end of the lever without the first locking part 512' of the rear positioning arm 51' In this way, the other end of the rear positioning arm 51' can be pulled down by the connecting rod 70 to drive the first locking part 512' to move upward by using the pivotal element 54 as a fulcrum using the principle of leverage, and the front and rear positioning can be used. The contact between the two lugs 516, 516' of the arms 51, 51' drives the front positioning arm 51 to pivot and swing, which also achieves the release of the locking effect of the front and rear positioning arms 51, 51'.

Thereby, the front and rear positioning arms 51, 51' of the positioning group 50 can also choose to omit the elastic element 52 and the base 53, thereby directly driving the front and rear positioning arms 51, 51, 51' for elastic reset and pivoting. At the same time, the utility model can be used in drawer slide rails of other specifications according to requirements, for example, it can be used in two-stage drawer slide rails, or other telescopic slide rails for slide rail products.

That is, use the two shoulders 73 of the connecting rod 70 or the inclined sides of the notch 72 to push against the second locking parts 514, 514' of the front and rear positioning arms 51, 51' of the positioning group 50; The two lugs 516, 517' that touch the ends of 51, 51' swing in unison, and the front and rear positioning arms 51, 51' can be controlled by a single connecting rod 70' to move synchronously, so as to release the locking state and provide internal The rail 30 can slide forward and backward two-way or break away from the middle rail 20 .

Embodiment two

As shown in Figure 8, the utility model includes a positioning group 50a assembled at an appropriate place on the inner surface of the inner rail 30, a connecting rod 70a' arranged on the inner rail 30, a blocking seat 60 assembled at the opening end of the middle rail 20, and an auxiliary Connecting rod 90.

The positioning group 50a includes a front positioning arm 51a, a rear positioning arm 51a', an elastic element 52 that is elastically stuck between the front and rear positioning arms 51a, 51a', a base 53a, and the front and rear positioning arms 51a, 51a' The pivoting element 54 is pivotally disposed inside the inner rail 30 .

The first connecting piece 70a is provided with a single notch 72 and a shoulder 73 , and the single shoulder 73 or the inclined sides of the notch 72 push against the second engaging portion 514 of the front positioning arm 51a. The connecting rod 70a' itself can also optionally be provided with an elastic element 81, so that the elastic return action of the connecting rod 70a' is more reliable.

The auxiliary link 90 is disposed on the inner rail 30 relative to the link 70a (70a'), and includes a grip portion 91 and a shoulder 92.

As shown in Fig. 8 and Fig. 9, the front positioning arm 51a cuts off part of the arm body; The third locking portion 518 ′ abuts against the shoulder 92 of the connecting rod 90 .

As shown in Figure 8 and Figure 10, in order to make the auxiliary connecting rod 90 reset automatically, the edge of the base 53a forms a concave step surface 531 that can slide to a limited extent relative to the sleeve rod section, and an elastic element is formed in the base 53a 55 grooves 532 . A protrusion 93 against the elastic element 55 is provided on the rod section of the auxiliary connecting rod 90 to restore the auxiliary connecting rod 90 elastically.

As shown in Figure 11, the utility model controls the respective actions of the front and rear positioning arms 51a, 51a' respectively with the connecting rod 70a (70a') and the auxiliary connecting rod 90 which are arranged in combination. When the connecting rod 70a (70a') is pushed forward or backward, one side of the shoulder 73 or the notch 72 is inclined to push against the edge of the second locking part 514 of the front positioning arm 51a so that the front positioning arm 51a is independently formed. By pivoting, the operator can release the locking relationship between the front positioning arm 51a and the blocking portion 61 of the blocking seat 60, and push the inner rail 30 into the middle rail 20, but in this state, the inner rail 30 is restricted When the first locking part 512' of the rear positioning arm 51a' abuts against the blocking part 61 and is one-way locked, so that the inner rail 30 cannot move forward and disengages from the middle rail 20, it can prevent the inner rail 30 from stretching to the limit In addition to being automatically locked between the front and rear positioning arms 51a, 51a', when the inner rail 30 is to be retracted and the connecting rod 70a (70a') is operated, it can avoid accidentally pulling out the inner rail 30 and causing inadvertent detachment Middle rail 20.

As shown in Figure 12, when the inner rail 30 is to be disassembled from the middle rail 20, the auxiliary connecting rod 90 is pushed, and the shoulder 92 of the auxiliary connecting rod 90 pushes against the rear positioning arm 51a' and the third locking part 518', so that Make the rear positioning arm 51a pivot and swing clockwise, and use the lug 516' on the rear positioning arm 51a' to jointly push the lug 516 of the front positioning arm 51a, so that the front and rear positioning arms 51a, 51a' move synchronously , so as to release the locking state of the opposing blocking portion 61 , so that the inner rail 30 can disengage from the middle rail 20 and slide forward or backward in both directions.

Based on the push of the inner rail 30 relative to the middle rail 20, the unlocking can be controlled by the connecting rod 70a (70a'), so the unlocking action of the related auxiliary connecting rod 90 pushing against the rear positioning arm 51a' can omit the linkage of the front positioning arm 51a. Pivot action, like this, as shown in Figure 13, can at least omit the lug 516 or 516 ' of front or rear positioning arm 51a or 51a ' at the opposite end of front and rear positioning arm 51a, 51a ', just can make front and rear The positioning arms 51a, 51a' are not synchronously driven, so that the front and rear positioning arms 51a, 51a' are driven by the connecting rod 70a (70a') and the auxiliary connecting rod 90 respectively.

In addition, the connecting rod 70a (70a') can not only be set in the form of front and rear bidirectional push and slide, but also can limit the one-way movement of the connecting rod 70a (70a') by an appropriate stop structure, so as to meet the user's basic needs. operational needs.

In summary, compared with the conventional three-section drawer slide rail with the disadvantage of only providing one-way positioning as shown in Figure 14, the locking member 301 and the stopper 201, the utility model uses the positioning assembly 50 ( 50 a ), blocking seat 60 , connecting rod 70 ( 70 a, 70 a ′) and auxiliary connecting rod 90 provide two-way positioning functions, and indeed have the effect of improving the convenience of using the drawer slide rail.

Claims (11)

1, the two-way positioning component of a kind of drawer sliding rail, it is characterized in that it comprise be mounted in location group on the rail, be located in the blocking seat of rail openend and at least one slip be arranged in connecting rod on the rail; The location group comprises the forward and backward registration arm that is subjected to connecting rod control of rail inboard in corresponding in opposite directions being articulated in and the flexible member that elasticity pushes forward and backward registration arm; Forward and backward registration arm has inclined plane in opposite directions, first blocking part that is connected with the inclined plane respectively; The blocking seat that is mounted on the rail openend be convexly equipped with corresponding and can be along front/rear registration arm inclined plane and clip between front/rear registration arm first blocking part to form the stop part of two-way location.

2, the two-way positioning component of drawer sliding rail according to claim 1 is characterized in that described connecting rod one end is provided with the grip part, and its other end is interval with two both sides and forms inclined side recess and two shoulders; Forward and backward registration arm is provided with first stepped portion of ccontaining connecting rod and pushes second blocking part in the connecting rod shoulder.

3, the two-way positioning component of drawer sliding rail according to claim 1 is characterized in that described connecting rod one end is provided with the grip part, and its other end is provided with single recess and single shoulder; Forward and backward registration arm is provided with first stepped portion and second blocking part of ccontaining connecting rod; Connecting rod is with second blocking part of its single shoulder/recess both sides inclined side prelocalization arm.

4,, it is characterized in that described connecting rod setting uses the forward and backward registration arm of direct drive and pivot to make connecting rod have the flexible member of elastic reset ability according to claim 2 or the two-way positioning component of 3 described drawer sliding rails.

5, the two-way positioning component of drawer sliding rail according to claim 4 is characterized in that described flexible member is located in the cover piece that is arranged at interior rail and supports the bar section of connecting rod; The bar section of connecting rod is provided with to the convex body that terminates in flexible member.

6, the two-way positioning component of drawer sliding rail according to claim 1 is characterized in that an end pivot of described connecting rod is connected in the not lever other end of tool first blocking part of rear radius arm, and the in addition end of rear radius arm is subjected to connecting rod to leave behind and drive and move on first blocking part; Forward and backward registration arm is respectively equipped with the lug that the phase lap supported and made its pivot in unison swing.

7, the two-way positioning component of drawer sliding rail according to claim 1, the stop part that it is characterized in that described blocking seat are the openend of rail during direct punching press is formed at.

8, the two-way positioning component of drawer sliding rail according to claim 1 is characterized in that being provided with pedestal between the described interior forward and backward relatively registration arm of rail medial surface; Pedestal is provided with uses the recess that fixedly pushes forward and backward registration arm flexible member.

9, the two-way positioning component of drawer sliding rail according to claim 1 is characterized in that described interior rail is provided with the auxiliary connecting rod that comprises grip part and shoulder; Rear radius arm be provided with ccontaining auxiliary connecting rod shoulder second stepped portion and with the 3rd blocking part of auxiliary connecting rod shoulder butt.

10, the two-way positioning component of drawer sliding rail according to claim 9 is characterized in that the described prelocalization arm of holding in opposite directions with rear radius arm is provided with lug, just can make forward and backward registration arm not have the continuous action relation of synchronous drive.

11,, it is characterized in that described pedestal and auxiliary connecting rod opposed edges form cover and hold the concave step surface of bar section, and the formation group is established the groove of flexible member in pedestal according to claim 1 or the two-way positioning component of 9 described drawer sliding rails; The bar section of auxiliary connecting rod is provided with flexible member and offsets so that the convex body of auxiliary connecting rod elastic reset.

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