CN2701328Y - Drawer slides with automatic return device - Google Patents

Abstract

The utility model relates to a drawer slide rail with an automatic homing device, which mainly comprises an outer rail, a middle slide rail arranged on the outer rail in a sliding mode, an inner slide rail arranged on the middle slide rail in a sliding mode, the inner sliding rail is provided with a stop part and a drag hook, the drag hook is clamped with a slope block, and a positioning seat arranged at one end of the outer rail, the positioning seat is used for providing a tight closing effect for the drawer, two side walls which are opposite up and down are arranged on the positioning seat, a sliding hole which is opposite up and down is respectively formed on each side wall, each sliding hole is provided with a stopping groove, a pulling piece is arranged between the two side walls, two ends of two elastic elements are respectively fixed on the positioning seat and the pulling piece, and the slope block and the pulling piece can be easily matched and clamped, the elastic element can be extended to have the elastic force for resetting the drawer, thereby achieving the automatic closing state of the drawer.

Description

Drawer slides with automatic return device

technical field

The utility model relates to a slide rail for a drawer with an automatic return device, in particular to a drawer slide rail which is installed in a drawer and achieves an automatic return function through simplified structural design.

Background technique

Generally, when the drawer is closed and reset, if the drawer is not closed tightly, there will often be a small space in the drawer, and it is easy for dust, dirt, and even insects to run into the drawer. In order to keep the drawer in a closed state, an automatic return device with a spring is usually installed on the slide rail of the drawer to provide the function of automatically closing the drawer tightly when it is reset. But at present, the automatic return device that can make the drawer close tightly has various forms of components, and the cost is high, which increases the price of the furniture on which the drawer is installed; Fear of elastic fatigue and reduce service life.

In addition, because the structure of the automatic return device is quite complicated, it is time-consuming and labor-intensive to assemble, and when the user pulls the entire drawer away from the furniture due to carelessness or other factors, the automatic return device will be separated and unhooked. When the user installs the drawer on the furniture again, the automatic return device needs to be reassembled, which will cause trouble and inconvenience in assembly. Therefore, the existing drawer slide rails equipped with the automatic return device are still insufficient. need to be further improved.

Contents of the invention

In view of the disadvantages in the structure and use of the existing drawer slide rail with automatic return device, the utility model improves the design, mainly to provide a simple structure, low cost, prolong service life, and convenient assembly. , and can be easily reassembled after being separated and unhooked, the drawer slide rail with automatic return device is its main purpose.

In order to achieve the aforementioned purpose, the technical means used in the utility model is to provide a drawer slide rail with an automatic return device, which includes:

an outer rail;

- an intermediate slide rail arranged on the inner side of the outer rail in a sliding manner;

An inner slide rail arranged in the middle slide rail in a sliding manner, and a ball ring is arranged between the inner slide rail and the middle slide rail, which has:

towards the inner end of the drawer interior,

towards the outer end of the drawer exterior,

at least one stop proximate the inner end and protruding towards the intermediate slide rail,

a draw hook protruding obliquely from the inner end of the retaining portion, and

a slope block fixed on the pull hook and having an inclined surface,

A positioning seat fixed on the outer rail, the positioning seat is an elongated block, which has:

one end,

a block formed at the other end from the end,

Two pieces of side walls are arranged between the end part and the block part, and are arranged parallel up and down. Each side wall is respectively pierced with a longitudinal sliding hole. The two sliding holes correspond up and down. There is a concave groove, and a petal portion is extended on both sides of the block to correspond to the concave-convex fit on the inner side of the outer rail; and

A pulling member that cooperates with the positioning seat to provide elastic reset, the pulling member is arranged between the two side walls of the positioning seat and can slide in the sliding hole, the pulling member has a nearly ︿-shaped body,

One is installed at one end of the body, and the angle toward the inner side of the ︿ shape is outwardly warped to clamp the hook of the slope block,

Two first pin blocks respectively arranged on the two sides of the ︿-shaped turning point of the body,

Two second pin blocks are respectively arranged on the two sides different from the end of the hook part and can enter the groove, and

The two elastic elements are respectively connected to the body at the outside of the ︿-shaped angle, and the other ends of the two elastic elements are respectively connected to the two petals of the positioning seat, and the two elastic elements are separated in a figure-eight shape.

Through the above-mentioned technical means, the drawer slide rail with automatic homing device of the present utility model can achieve the following effect enhancement:

1. In this utility model, a slope block is clamped on the pull hook of the inner slide rail, and the hook part of the pulling part can be easily and automatically pulled to the position of the proximal end of the positioning seat through the inclined surface on the slope block. It is easy and convenient to assemble and combine, and at the same time, when the pulling part is pulled back to the position adjacent to the positioning seat block by the two elastic elements due to factors such as careless use, it is also an automatic return device that can easily separate and unhook Reconfigurable to provide tight closing capability for drawer slides.

2. Two elastic elements are combined in the positioning seat to distribute in a figure-eight shape, which can evenly provide the elastic force for the tight closing of the drawer slide rail, and at the same time, the service life can be increased due to the average force.

Description of drawings

Fig. 1 is the partial exterior view of three-dimensional combination of the present utility model;

Fig. 2 is an exploded view of a partial three-dimensional element of the utility model;

Fig. 3 is a schematic diagram of a transverse section of the utility model;

Fig. 4 is a partial sectional view of the utility model when the outer rail is cut open and the inner slide rail is not pulled;

Fig. 5 is a cross-sectional action diagram of the combination of the hook portion of the pulling member and the slope block of the inner slide rail when the utility model starts to pull the inner slide rail;

Fig. 6 is a cross-sectional action diagram of the utility model when the inner slide rail is pulled, and the hook part of the pulling member is combined with the slope block of the inner slide rail to generate slippage;

Fig. 7 is a partial sectional view of the utility model when the outer rail is cut open and the inner slide rail has been pulled;

Fig. 8 is a cross-sectional action diagram of the pulling member combined with the slope block of the inner slide rail again when the inner slide rail of the present invention is closed.

Explanation of symbols in the figure

10 outer rail 11 card hole

12 insert piece 14 middle slide rail

16 Inner slide rail 161 Pull hook

162 block 163 slope block

164 inclined plane 20 positioning seat

21 End 211 Jack

22 side wall 221 lateral protrusion

23 block part 231 slotting

24 Sliding hole 241 Stop groove

242 Tongue 25 Petal

30 pulling pieces

31 Body 32 Hook

33 The first pin block 331 The second pin block

35 Protrusion 351 Notch

37 Elastic element 371 Cone head

372 Neck

Detailed ways

The specific implementation of the utility model will be described in detail below in conjunction with the accompanying drawings and examples.

The utility model relates to a drawer slide rail with an automatic homing device. The drawer slide rail is installed on furniture provided with a drawer. The furniture has an accommodating space for accommodating the drawer. The drawer slide rail is arranged on the wall of the accommodating space. between the side walls of the drawer. Please refer to Fig. 1 to Fig. 2, the drawer slide rail of the present utility model has an outer rail 10 that can be fixed on the wall surface of the drawer accommodation space; The inner slide rail 16 that is arranged in the middle slide rail 14 and is fixed to the outer wall of the drawer is provided with a ball ring between the middle slide rail 14 and the inner slide rail 16 to make the slide rail easy to slide; a fixed setting A positioning seat 20 on the outer rail 10 and close to the inside of the drawer accommodating space; and a pulling member 30 cooperating with the positioning seat 20 to provide elastic reset.

The outer rail 10, at one end relative to the inner surface of the drawer accommodating space, is perforated with two parallel clamping holes 11 on the top surface, and one is arranged at the end far away from the clamping hole 11 and is at a distance from the clamping hole 11. Insert 12 of small distance.

The inner slide rail 16 is a strip-shaped inner slide rail, which has an inner end towards the inside of the drawer and an outer end towards the outside of the drawer. On the outer surface fixed on the side wall of the drawer, a stopper 162 protruding toward the middle slide rail 14 is sequentially provided from the inner end to the outer end, and a pull hook protruding in a slanted shape that is arranged on the stopper 162 away from the inner end. 161 , and a ramp block 163 which is fastened on the draw hook 161 and has a slope 164 .

The positioning seat 20 is an elongated block, and its end towards the inner slide rail 16 is a hollow end 21 with a bimodal end face, and a slit-shaped jack 211 is pierced on the end 211 for the outer rail 10. The insertion piece 12 is inserted and positioned. One end of the positioning seat 20 different from the end portion 21 is a block portion 23, and two side walls 22 arranged in parallel up and down are formed between the end portion 21 and the block portion 23. The upper and lower sides of the two side walls 22 are connected to the block portion 23 One end is respectively provided with side protrusions 221 facing the inner slide rail 16 and having a nearly triangular cross-section, so as to prevent the inner slide rail 16 from entering the positioning seat 20 and easily warping outward. A vertical J-shaped sliding hole 24 is formed on the top surface of each side wall 22 , so that the sliding hole 24 forms a tongue 242 near the block portion 23 , and the sliding holes 24 of the upper and lower side walls 22 are vertically opposite to each other. One side of the slide hole 24 is adjacent to the end portion 21 and a recessed notch 241 is formed. The top of the notch 241 is slightly inclined towards the direction away from the block portion 23 . Please refer to Fig. 3 at the same time, the upper and lower sides of the block portion 23 each extend a columnar petal portion 25, the shape of the petal portion 25 corresponds to the concave-convex shape on the inner side of the outer rail 10 to be locked with each other, so that the positioning seat 20 is stable Set on the outer rail 10. At the same time, each petal portion 25 is recessed with a narrow mouth 251 on the side facing the outer rail 10 , and a slot 231 is formed in the block portion 23 .

The pulling member 30, please refer to FIG. 2 to FIG. 5, is arranged between the two side walls 22 of the positioning seat 20 and can slide along the sliding hole 24. The pulling member 30 has a slightly U-shaped body 31 One end of the body 31 is formed with a hook portion 32 that is tilted toward the inner side of the ︿ shape to slide along the slope 164 of the ramp block 163 and can be clamped on one side of the ramp block 163 . The body 31 is provided with a first pin block 33 on both sides of the O-shaped turning point, and a second pin block 331 is respectively provided on both sides of the end of the hook portion 32. The body 31 protrudes outside the O-shaped angle A protruding portion 35 is provided, and two concave notches 351 are formed on the bottom surface of the protruding portion 35 . Two elastic elements 37 are connected between the pulling member 30 and the positioning seat 20. These two elastic elements 37 can be elongated springs. The two ends of each elastic element 37 body are all cone heads 371. The joints of the cone heads 371 are respectively formed with necks 372 with reduced diameters and widths.

Wherein, the neck 372 at one end of each elastic element 37 is respectively stuck in the gap 351 of the pulling member 30, and the neck 372 at the other end of each elastic element 37 is respectively stuck in the narrow mouth 251 of the two petals 25, and is blocked by the cone head 371. The narrow mouth 251 prevents detachment, forming two elastic elements 37 distributed in a figure-eight shape. Since the elastic element 37 exerts an elastic stretching effect on the pulling member 30, it provides the ability to reset the drawer slide rail.

When using and implementing, please refer to Fig. 5 to Fig. 6, when the drawer is closed, the inner slide rail 16 is pushed, and the pushing action makes the ramp block 163 clamped on the pull hook 161 of the inner slide rail 16, so that the pulling member 30 The hook portion 32 slides along the slope 164 of the ramp block 163 , and at the same time makes the hook portion 32 hook against one side of the ramp block 163 . Then the pulling member 30 slides along the sliding hole 24 with the pin block 33 , and makes the elastic element 37 return to the original length state.

Please refer to Figure 6 again. When the ramp block 163 is accidentally separated from the pulling member 30 during use, and the elastic element 37 is returned to its original length, it can be locked by the locking device on the inner slide rail 16. The ramp block 163 is pushed toward the end of the outer rail 10 provided with the clamping hole 11, so that the hook portion 32 of the pulling member 30 slides along the ramp block 163, and then blocks against the ramp block 163 again, so that the automatic homing device resets Combined positioning, the inner sliding rail 16 can be stretched so that the elastic element 37 is elongated to provide a state of restoring elasticity.

Please refer to Fig. 7 and Fig. 8, when the drawer is opened, the first pin block 33 slides in the slide hole 24, and the top of the pin block 33 is slightly inclined towards the block portion 23 due to the stop groove 241 provided on one side of the slide hole 24. This inclination can guide the second pin block 331 to quickly enter the locking groove 241, so that the elastic element 37 on the pulling member 30 is elongated, and the pulling member 30 is positioned on the proximal end 21 of the positioning seat 20. one end.

When the drawer is closed, the hook portion 32 of the pulling member 30 is pushed back by the slope block 163 of the reset inner slide rail 16 due to the force of closing the drawer, and the protruding pull hook 161 will push against the pulling member 30 is provided with one end of the second pin block 331, so that the second pin block 331 slides out from the stop groove 241. At this time, the hook portion 32 will slide along the slope 164 of the ramp block 163 again, and be stuck against the side of the ramp block 163. , so that the pulling member 30 can slide in the sliding hole 24 again, and make the elastic element 37 return to its original long state.

As mentioned above, the utility model utilizes two elastic elements 37 distributed at one end of the positioning seat 20 in a figure-eight shape. . Simultaneously, by being arranged on the ramp block 163 on the inner slide rail 16 and its slope 164 setting, can make the hook portion 32 conveniently and quickly combine with the inner slide rail 16 snap hook through the guiding effect of the slope 164, can improve the assembly of the slide rail. At the same time, after the user pulls the entire drawer away from the furniture due to carelessness or other factors, so that the puller 30 is disengaged from the slope block 163, the hook of the puller 30 can still be easily and conveniently 32 is recombined with the inner slide rail 16, and even if the pulling member 30 is accidentally returned to an end near the block portion 23 during use, it can still be reset by pushing the inner slide rail 16, so that the drawer slide rail of the present utility model has Auto close tight function.

Furthermore, the inner slide rail 16 of the present invention directly processes the retaining portion 162 and the drag hook 161 to control the pulling member 30 without additional manufacturing components to cooperate, which can effectively reduce the processing cost.

Claims (5)

1. A drawer slide rail with an automatic homing device, characterized in that it comprises: an outer rail; - an intermediate slide rail arranged on the inner side of the outer rail in a sliding manner; An inner slide rail arranged in the middle slide rail in a sliding manner, and a ball ring is arranged between the inner slide rail and the middle slide rail, which has: towards the inner end of the drawer interior, towards the outer end of the drawer exterior, at least one stop proximate the inner end and protruding towards the intermediate slide rail, a draw hook protruding obliquely from the inner end of the retaining portion, and a slope block fixed on the pull hook and having an inclined surface, A positioning seat fixed on the outer rail, the positioning seat is an elongated block, which has: one end, a block formed at the other end from the end, Two pieces of side walls are arranged between the end part and the block part, and are arranged parallel up and down. Each side wall is respectively pierced with a longitudinal sliding hole. The two sliding holes correspond up and down. There is a concave groove, and a petal portion is extended on both sides of the block to correspond to the concave-convex fit on the inner side of the outer rail; and A pulling member that cooperates with the positioning seat to provide elastic reset, the pulling member is arranged between the two side walls of the positioning seat and can slide in the sliding hole, the pulling member has a nearly ︿-shaped body, One is installed at one end of the body, and the angle toward the inner side of the ︿ shape is outwardly warped to clamp the hook of the slope block, Two first pin blocks respectively arranged on the two sides of the ︿-shaped turning point of the body, Two second pin blocks are respectively arranged on the two sides different from the end of the hook part and can enter the groove, and The two elastic elements are respectively connected to the body at the outside of the ︿-shaped angle, and the other ends of the two elastic elements are respectively connected to the two petals of the positioning seat, and the two elastic elements are separated in a figure-eight shape. 2. The drawer slide rail with an automatic return device according to claim 1, wherein a narrow opening is recessed on one side of the two petals of the positioning seat, and a protrusion protrudes from the bottom of the pulling member, and a protrusion is formed on the protrusion. A notch is provided, and both ends of each elastic element are conical heads, and a neck is formed at the place where the outer diameter of the conical head is small, and the neck is stuck in the notch or the narrow mouth. 3. The drawer slide rail with an automatic return device according to claim 2, wherein the block part of the positioning seat is provided with a slot at the bottom. 4. The drawer slide rail with an automatic homing device as claimed in claim 3, wherein, the outer rail is provided with two parallel clamping holes on the top surface, and one is arranged at the end far away from the clamping hole and connected to the clamping hole. The holes are spaced apart from each other by a certain distance, and the positioning seat is respectively provided with a block on the petal part, and an insertion hole for inserting the block is provided at the end, and the positioning seat is fixed on the outer rail. 5. The drawer slide rail with an automatic homing device as claimed in claim 4, wherein the end of the positioning seat is hollow and double-peaked, and each sliding hole is J-shaped, so that each side wall is in the A free end-shaped tongue is formed adjacent to the block.

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