CN215126160U - Guide rail pull switch guiding device - Google Patents

Abstract

The utility model discloses a guide rail pull switch guiding device, which comprises a guide rail assembly consisting of a fixed rail, a middle rail and a sliding rail which are in sliding fit, wherein the middle rail is provided with a guiding device which can move along the vertical push-pull direction, the fixed rail is provided with a space avoiding position for the guiding device to move and avoid the space, the guiding device moves along with the middle rail in a synchronous pull-out/push-in manner that when the guiding device slides between the closing position and the space avoiding position of the guide rail assembly, the guiding device and the sliding rail are stopped to limit the middle rail and the sliding rail to slide relatively; and releasing the pull-out/push-in movement of the sliding rail when the guide device reaches the clearance avoiding position, enabling the guide device to move into the clearance avoiding position through the pull-out movement of the sliding rail to be stopped with the fixed rail to limit the pull-out/push-in movement of the middle rail, and on the contrary, enabling the guide device to exit the clearance avoiding position through the push-in movement of the sliding rail and releasing the pull-out/push-in movement of the middle rail.

Description

Guide rail pull switch guiding device

Technical Field

The utility model belongs to the technical field of furniture guide rail structure's technique and specifically relates to indicate a guide rail pull switch guiding device.

Background

In the field of widely used furniture, rail assemblies are used to implement opening and closing movements of drawers, cabinets and other furniture by means of a pulling-out movement, and a prior rail assembly such as a furniture pulling-out guide device disclosed in patent CN102112023A is improved to synchronously implement the movement of the intermediate rail and the sliding rail from a predetermined position to the closed position, which, although it can partially solve the problem of heavy load, can only optimize the movement of limiting the movement of the intermediate rail during the movement and cannot effectively guide the movement of the rail assembly. Secondly this kind of mode fault rate is high, has great interference to the slip of guide rail assembly, hinders greatly and life is short during the use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a reliable and stable guide rail pull switch guiding device.

In order to achieve the above object, the present invention provides a guide rail pull switch guiding device, which comprises a fixed rail, an intermediate rail and a sliding rail, wherein the fixed rail, the intermediate rail and the sliding rail are slidably engaged to form a guide rail assembly, the intermediate rail is provided with a guiding device capable of moving along a vertical push-pull direction, the fixed rail is provided with a space avoiding position for the guiding device to move and avoid space, wherein the guiding device moves along with the intermediate rail in a synchronous pull-out/push-in manner, so that when the guiding device slides between a closing position of the guide rail assembly to the space avoiding position, the guiding device and the sliding rail are stopped to limit the intermediate rail and the sliding rail to slide relatively; and releasing the pull-out/push-in movement of the sliding rail when the guide device reaches the clearance avoiding position, enabling the guide device to move into the clearance avoiding position through the pull-out movement of the sliding rail to be stopped with the fixed rail to limit the pull-out/push-in movement of the middle rail, and on the contrary, enabling the guide device to exit the clearance avoiding position through the push-in movement of the sliding rail and releasing the pull-out/push-in movement of the middle rail.

Furthermore, the fixed rail is fixedly provided with a lower limiting piece, the lower limiting piece can be in contact fit with a first stop block arranged on the middle rail so as to limit the sliding stroke of the middle rail in a pulling motion relative to the fixed rail, and when the lower limiting piece is in contact with the first stop block, the guide device just reaches the position of the avoidance space.

Furthermore, the sliding rail is fixedly provided with an upper limiting piece, and when the sliding rail is pulled out relative to the middle rail along with the sliding rail, the upper limiting piece can be in abutting fit with a second stop block arranged on the middle rail to limit the sliding rail to be pulled out continuously.

Further, the top of the guiding device is provided with an upper contact part which is used for being matched with the sliding rail in a rolling way and is provided with an upper roller, the fixed rail is formed with a stopping sliding groove which is concave upwards and is used for the upper contact part to relatively slide in or slide out, and when the guiding device slides between a closed position and a clearance position, the upper contact part is limited to be matched with the stopping in the stopping sliding groove in a stopping way; when the guiding device reaches the clearance avoiding position, the stopping sliding groove is abutted to the upper contact part to slide out, and the guiding device moves downwards to avoid the clearance.

Further, the bottom of the guiding device is provided with at least one lower roller matched with the fixed rail in a rolling way.

Further, the middle rail is formed with a sliding groove, the guide device is installed in the sliding groove through a connecting shaft and moves along the vertical push-pull direction, and an elastic piece used for generating upward elastic force to the guide device is further configured.

Further, when the middle rail can be pushed in and move relative to the fixed rail, the space avoiding position touches the space avoiding guide device to move upwards and retreat.

The utility model adopts the above technical scheme, its beneficial effect lies in: the pull-out/push-in movement of the middle rail and the sliding rail is limited or released through the guide device, the opening and closing action of the guide rail assembly is effectively played, the load of the pull-out/push-in movement is improved, the deformation and failure rate of the guide rail are effectively reduced, and the service life and the stability are improved.

Drawings

Fig. 1 is a schematic view of a pull switch guide.

Fig. 2 is a side view of the drawer switch guide.

Fig. 3 is a schematic view of the guide device and the intermediate rail.

Fig. 4 is a schematic view of the fully closed state of the rail assembly.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic view of guiding a device to an escape position.

Fig. 7 is an enlarged view of a portion b of fig. 6.

Fig. 8 is a schematic view of the fully open state of the rail assembly.

Fig. 9 is an enlarged view of a portion c of fig. 8.

Fig. 10-12 are enlarged partial views of the guide device of the second embodiment.

Fig. 13 is an exploded view of the intermediate rail and the slide rail according to the third embodiment.

The device comprises a fixed rail 1, a fixed rail 11, a clearance avoiding position 12, a lower limiting piece 2, a middle rail 21, a first stopping block 22, a second stopping block 22, a sliding rail 3, a stopping sliding groove 31, an upper limiting piece 32, a limiting plate 33, a guide device 4, an upper contact part 41, a connecting shaft 42, an elastic piece 43 and a backing plate 44.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.

Referring to fig. 1 to 9, in the present embodiment, a guide rail drawing switch guide device includes a guide rail assembly and a guide device 4, wherein the guide rail assembly is composed of a fixed rail 1, an intermediate rail 2 and a sliding rail 3 which are in sliding fit, and a plurality of pulleys are respectively disposed between the fixed rail 1 and the intermediate rail 2 and between the intermediate rail 2 and the sliding rail 3, so as to perform the functions of sliding guide and support. The fixed rail 1 is generally intended to be fixed to a furniture body and the sliding rail 3 is generally intended to be fixed to a drawer, a pull-out or the like. For the sake of convenience of explanation of the guide rail drawing switch guide 4, it is defined that the guide 4 is located at the closed position when the guide rail assembly is in the fully closed state.

In this embodiment, a sliding groove is formed in the middle rail 2 near the middle, the guiding device 4 is installed in the sliding groove through a connecting shaft 42 in a direction horizontally perpendicular to the fixed rail 1, and the guiding device 4 is formed with an up-down adjusting groove for slidably fitting the end of the connecting shaft 42, so that the guiding device 4 moves up and down in the sliding groove in a vertical pushing and pulling direction (for convenience of explanation, the guiding device 4 moves up and down in the sliding groove, which is not limited herein to the sliding range of the guiding device 4 and is determined by the installation direction of the guide rail). In addition, an elastic member 43 for generating an upward elastic force to the guide device 4 is further provided, that is, the elastic member 43 of the present embodiment is preferably a tension spring, and both ends of the tension spring are respectively connected with the connecting shaft 42 and the guide device 4, so that the guide device 4 tends to move upward to press the upper rail.

In the present exemplary embodiment, the guide device 4 moves synchronously with the intermediate rail 2 in the pull-out/push-in direction, so that the guide device 4 is limited in the spatial region between the fixed rail 1 and the sliding rail 3 to move synchronously with the intermediate rail 2. The top of the guiding device 4 is provided with an upper contact part 41 which is used for being matched with the sliding rail 3 in a rolling way and is provided with an upper roller, wherein the height from the top end of the upper contact part 41 to the ground of the guiding device 4 is larger than the height of the space between the fixed rail 1 and the sliding rail 3. The fixed rail 1 is formed with a stop sliding groove 31 which is concave and allows the upper contact part 41 to slide in or out relatively, so that when the bottom end of the guide device 4 is limited by the fixed rail 1 and can not escape, the upper contact part 41 is limited to slide into the stop sliding groove 31 and is matched with the stop, the stop limits the relative sliding between the middle rail 2 and the sliding rail 3, and the middle rail 2 and the sliding rail 3 keep synchronous pull-out/push-in movement under the state.

Further, the fixed rail 1 is provided with a clearance 11 for the guiding device 4 to move downwards for clearance, wherein the guiding device 4 releases the pulling/pushing movement of the sliding rail 3 when reaching the clearance 11, the bottom end of the guiding device 4 is not limited by the fixed rail 1 any more, at this time, the guiding device 4 can move downwards into the clearance 11 through the pulling movement of the sliding rail 3 to stop the fixed rail 1 to limit the pulling/pushing movement of the intermediate rail 2, specifically, the stopping sliding groove 31 of the sliding rail 3 is used for contacting the upper contact part 41 to slide out, so that the guiding device 4 moves downwards into the clearance 11, the upper contact part 41 after sliding out is limited by the sliding rail 3 and cannot exit the clearance 11, the stopping is performed to limit the pulling/pushing movement of the intermediate rail 2, and at this time, only the sliding rail 3 performs the pulling/pushing movement. On the contrary, the guiding device 4 can exit the clearance 11 and release the pulling/pushing movement of the middle rail 2 by the pushing-in action of the sliding rail 3, specifically, the sliding rail 3 moves relative to the middle rail 2 to make the stopping sliding groove 31 reach the clearance 11, so that the upper contact portion 41 is no longer limited by the sliding rail 3 to make the guiding device 4 exit the clearance 11 and slide into the stopping sliding groove 31 under the action of upward elastic force, the stopping action is performed to limit the relative sliding between the middle rail 2 and the sliding rail 3, and the middle rail 2 and the sliding rail 3 are pulled/pushed in synchronously at the moment.

Further, by the rolling contact between the upper roller carried by the upper contact portion 41 and the slide rail 3, the effective guide means 4 reduces the frictional influence on the normal pull-out/push-in movement of the slide rail 3.

In this embodiment, the bottom of the guide 4 is provided with at least two lower rollers, preferably two lower rollers here, which are in rolling engagement with the fixed rail 1, so that the frictional influence of the guide 4 on the normal pull/push movement of the intermediate rail 2 is effectively reduced.

In this embodiment, the fixed rail 1 is fixedly provided with the lower limiting member 12, and the lower limiting member 12 can be in abutting fit with the first stop block 21 provided on the intermediate rail 2, specifically, the lower limiting member 12 of this embodiment is a sheet structure and the first stop block 21 is a column structure, and the lower limiting member 12 is in abutting fit with the first stop block 21 to limit the sliding stroke of the intermediate rail 2 in a pulling-out motion relative to the fixed rail 1, so as to avoid the problem that the intermediate rail 2 is separated from the fixed rail 1 due to excessive sliding; when the lower limiting part 12 abuts against the first stop block 21, the guide device 4 just reaches the clearance position 11, which is more convenient for the accuracy of downward movement of the guide device 4.

In this embodiment, the sliding rail 3 is fixedly provided with an upper limiting member 32, and when the sliding rail 3 is pulled out relative to the middle rail 2, the upper limiting member 32 can be in contact fit with the second stopping block 22 provided on the middle rail 2 to limit the sliding rail 3 to be pulled out continuously, wherein the upper limiting member 32 is of a sheet structure and the second stopping block 22 is of a column structure, so as to avoid the problem that the sliding rail 3 is separated from the middle rail 2 due to excessive sliding.

The sliding groove is not limited to the middle position of the middle rail 2, and the position can be changed in a derivative mode according to the specification and the requirement of an actual product.

In summary, the above-mentioned track assembly is further explained with reference to specific working principles.

When the user pulls out the guide rail assembly to open: the sliding rail 3 is restricted by the upper contact portion 41 to be in stop fit in the stop sliding groove 31 and synchronously pulled out and moved with the intermediate rail 2, and the guiding device 4 slides along with the intermediate rail 2 between the closing position of the guide rail assembly and the clearance position 11 until the guiding device 4 reaches the clearance position 11, and the guiding device 4 can move downwards into the clearance position 11 and the clearance stop sliding groove 31 because the guiding device is no longer restricted by the fixed rail 1, so that the pulling-out/pushing-in movement of the sliding rail 3 is released, then the sliding rail 3 continues to be pulled out and moved, and meanwhile, the guiding device 4 moves downwards to the clearance position 11 to be stopped and restricted by the clearance position 11 through the stop sliding groove 31 contacting against the upper contact portion 41, so that the upper stop member 32 is abutted against the second stop block 22, and the guide rail assembly reaches the fully open position.

When a user pushes the guide rail assembly to close, the middle rail 2 cannot be pulled out or pushed in due to the fact that the guide device 4 is limited in the clearance 11, only the sliding rail 3 is used as pushing-in motion, when the stopping sliding groove 31 of the sliding rail 3 moves to the clearance 11, the upper contact part 41 is not limited by sliding return, the guide device 4 moves upwards to slide into the stopping sliding groove 31 under elastic acting force and exit from the clearance, the pulling-out/pushing-in motion of the middle rail 2 is released, the middle rail 2 and the sliding rail 3 are limited to slide relatively, and then the middle rail 2 and the sliding rail 3 synchronously push in motion until the guide rail assembly reaches a complete closing position.

Through the guide rail assembly and the guide device 4, the drawing/pushing movement of the middle rail 2 and the sliding rail 3 is limited and released, the gravity load during the drawing/pushing movement is effectively optimized, and the risks of deformation and damage of the guide rail assembly caused by overweight load are reduced.

Example two:

referring to fig. 10-12, in the present embodiment, the distinguishing features compared with the first embodiment are: the guide 4 is a pin structure that can move up and down, and is not provided with the elastic member 43. The space-avoiding position 11 is a groove-shaped structure which can be matched with the guide device 4 in a stop way, and similarly, the space-avoiding position 11 of the second embodiment can be used for the guide device 4 to move downwards to avoid space.

Referring to fig. 10 and 12, when the guiding device 4 reaches the position of the clearance 11 along with the intermediate rail 2 while the intermediate rail 2 and the sliding rail 3 keep moving synchronously, the guiding device 4 is no longer limited by the fixed rail 1, and the stopping sliding groove 31 can be pushed by the pushing-in/pulling-out action of the sliding rail 3 to move down into the clearance 11, so that the pushing-in/pulling-out movement of the intermediate rail 2 is limited and the pushing-in/pulling-out movement of the sliding rail 3 is released.

Referring to fig. 10 and 11, during the relative movement between the sliding rail 3 and the intermediate rail 2, when the stopping runner 31 reaches the position of the clearance 11, the guiding device 4 is no longer limited by the sliding rail 3, and at this time, the clearance 11 pushes the guiding device 4 upward into the stopping runner 31 by the pushing movement of the intermediate rail 2 relative to the fixed rail 1, so that the pushing movement of the intermediate rail 2 is released and the relative movement between the intermediate rail 2 and the sliding rail 3 is limited.

The guide device 4 is simpler in structure, lower in overall assembly difficulty and lower in cost.

Example three:

referring to fig. 13, in the present embodiment, the difference features compared with the first embodiment and the second embodiment are as follows: the guiding device 4 can be indirectly mounted on the sliding rail 2 through a pad plate, specifically, the pad plate 44 is an "L" shaped structure, the horizontal section of which is connected with a sliding groove formed with the middle rail 2 and the vertical section for vertical sliding mounting of the guiding device 4, wherein the guiding device is slidably mounted into the sliding groove through the connecting shaft 42.

In addition, the slide rail 3 is fixed with the limiting plate 33 which extends along the length direction and is used for the guiding device 4 to be matched with the stop, wherein the stop chute 31 is formed on the limiting plate 33, and the effect that the guiding device 4 is indirectly matched with the slide rail 3 by the stop is realized by adopting the mode of the limiting plate.

The above-described embodiments are merely preferred embodiments of the present invention, which are not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents of the embodiments of the invention without departing from the scope of the invention. Therefore, the content of the technical scheme of the utility model, according to the equivalent change made by the idea of the utility model, should be covered in the protection scope of the utility model.

Claims (7)

1. The utility model provides a guide rail pull switch guiding device, has constituted the guide rail subassembly by sliding fit's fixed rail (1), middle rail (2) and sliding rail (3), its characterized in that: the middle rail (2) is provided with a guiding device (4) capable of moving along the vertical push-pull direction, the fixed rail (1) is provided with a space avoidance position (11) for the guiding device (4) to move and avoid space, wherein the guiding device (4) synchronously pulls out/pushes in along with the middle rail (2), so that when the guiding device (4) slides between the closing position of the guide rail assembly to the space avoidance position (11), the guiding device (4) and the sliding rail (3) stop to limit the relative sliding of the middle rail (2) and the sliding rail (3); when the guide device (4) reaches the clearance space (11), the pulling-out/pushing-in movement of the sliding rail (3) is released, the guide device (4) moves into the clearance space (11) through the pulling-out movement of the sliding rail (3) and is stopped with the fixed rail (1) to limit the pulling-out/pushing-in movement of the middle rail (2), and on the contrary, the guide device (4) exits the clearance space (11) through the pushing-in movement of the sliding rail (3) and releases the pulling-out/pushing-in movement of the middle rail (2).

2. The guide for a guide-rail draw switch of claim 1, wherein: fixed being equipped with down spacing spare (12) on fixed rail (1), spacing spare (12) down can be with middle rail (2) be equipped with first backstop piece (21) inconsistent cooperation in order to play the slip stroke that the relative fixed rail (1) of limit middle rail (2) was made the pull-out motion to when spacing spare (12) and first backstop piece (21) piece were inconsistent down, guider (4) reach just and keep away vacancy (11) department.

3. The guide for a guide-rail draw switch of claim 1, wherein: the sliding rail (3) is fixedly provided with an upper limiting piece (32), and when the sliding rail (3) is pulled out relative to the middle rail (2), the upper limiting piece (32) can be in contact fit with a second stop block (22) arranged on the middle rail (2) to limit the sliding rail (3) to be pulled out continuously.

4. The guide for a guide-rail draw switch of claim 1, wherein: the top of the guide device (4) is provided with an upper contact part (41) which is used for being matched with the sliding rail (3) in a rolling way and is provided with an upper roller, the fixed rail (1) is formed with a stop sliding groove (31) which is concave upwards and allows the upper contact part (41) to slide in or out relatively, wherein when the guide device (4) slides between a closed position and the avoidance position (11), the upper contact part (41) is limited to be matched with the stop in the stop sliding groove (31); when the guide device (4) reaches the clearance position (11), the stop sliding groove (31) pushes the upper contact part (41) to slide out and enables the guide device (4) to move downwards to avoid the clearance.

5. The guide for a guide-rail draw switch of claim 1, wherein: the bottom of the guide device (4) is provided with at least one lower roller which is matched with the fixed rail (1) in a rolling way.

6. The guide for a guide-rail draw switch of claim 1, wherein: the middle rail (2) is formed with a sliding groove, the guide device (4) is installed in the sliding groove through a connecting shaft (42) and moves along the vertical push-pull direction, and an elastic piece (43) used for generating upward elastic force on the guide device (4) is further arranged.

7. The guide for a guide-rail draw switch of claim 1, wherein: when the middle rail (2) can be pushed into the fixed rail (1) to move, the space avoiding position (11) is contacted with the space avoiding guide device (4) to move upwards and retreat.

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