CN101199383A - Hydraulic resettable sliding rail device with hidden rolling shaft - Google Patents

Abstract

The invention relates to the technical field of sliding rail devices, in particular to a hydraulic resettable sliding rail device with hidden rollers, which comprises an outer rail, an inner rail, a resetting slide block, a hydraulic damping piston, a fixed cover plate and a tension spring, wherein one side edge of the outer rail is connected with the inner rail in a nested manner through a roller support; the fixed cover plate is fixed on the inner groove surface of the outer rail, one side of the reset slide block is arranged in a gap formed by the inner rail and the outer rail in a sliding way, and the other side of the reset slide block is arranged in the fixed cover plate in a sliding way; one end of the inner side surface of the inner rail is provided with a shifting post for shifting the reset sliding block, the reset sliding block is provided with two convex blocks for clamping the shifting post, one end of the reset sliding block is provided with a reset stop block, and the corresponding end of the fixed cover plate is provided with a reset notch; one end of the tension spring is fixedly connected with the reset sliding block, and the other end of the tension spring is fixed in the clamping piece on the inner groove surface of the outer rail; the telescopic device has the advantages of smooth extension, balanced operation, long service life and low noise.

Description

A hydraulically resettable slide rail device with hidden rollers

Technical field:

The invention relates to the technical field of slide rail devices, in particular to a hydraulic resettable slide rail device with hidden rollers.

Background technique:

Slide rails are designed to realize the relative movement of two adjacent objects. For example, in desks used by people, the opening and closing of drawers is mostly realized through this slide rail device. The early slide rail device mainly includes two slide bars respectively arranged on the table and the drawer, wherein the slide bar arranged on the drawer will slide along the slide bar fixed on the table. To overcome the sliding friction between the sliders, if the joint surface between the sliders is not smooth enough, the friction coefficient is large, so the friction is large, causing the object to move unsmoothly, and due to the large sliding friction, it will cause the slider to wear Faster, resulting in shortened product life. In response to the above situation, people have improved the design, such as setting a roller device between the slide bars. This method of replacing sliding friction with rolling friction makes the opening and closing of the drawer much more convenient and smooth, but the stability of its structure is still not enough. Very good, but the bearing capacity is poor, and this early slide rail is not equipped with a reset device, the slide rail can slide freely in both directions along the track, when a certain pulling force is applied from the outside world or under the action of gravity on an inclined plane, the drawer will stretch out from the table. In this way, the drawer is in a very unstable state, and any small external changes will cause it to slide, so that the user must repeatedly close it, or need to use a key to fix it relative to the table body, these All bring certain troubles to the user.

Invention content:

The object of the present invention is to provide a hydraulically resettable slide rail device with hidden rollers in view of the shortcomings of the prior art.

In order to achieve the above object, the present invention adopts the following technical scheme: it includes an outer rail and an inner rail, one side of the outer rail and the inner rail are nested and connected by a roller bracket, and also includes a reset slider, a hydraulic damping piston, a fixed Cover plate and tension spring; the fixed cover plate is fixed on the inner groove surface of the outer rail, one side of the reset slide block is slidably set in the gap formed by the inner rail and the outer rail, and the other side is slidably set in the fixed cover plate; One end of the inner side of the inner rail is provided with a dial to toggle the reset slider, and the reset slider is provided with two protrusions for clamping the dial, and one end of the reset slider is provided with a reset stopper, and the fixed cover plate corresponds to One end is provided with a reset gap; one end of the tension spring is fixedly connected with the reset slider, and the other end is fixed in the clip on the inner groove surface of the outer rail.

A hydraulic damping piston is connected to one end of the reset sliding block by the tension spring, and the hydraulic damping piston is fixed on the inner groove surface of the outer rail.

The outer rail and the inner rail are provided with lugs to prevent the roller bracket from slipping off.

Corresponding rollers are provided on the contact surfaces of the roller support, the outer rail and the inner rail.

After adopting the above structure, the transmission between the outer rail and the inner rail is through the roller bracket, which belongs to rolling friction, which can reduce the friction force between various mechanisms, so that the present invention can stretch smoothly and stably; the reset slider is connected with a hydraulic damping piston, The function of the hydraulic damping piston is to reduce the impact force brought to the device when the tension spring returns quickly, reduce noise, and make the present invention have a longer service life.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the three-dimensional exploded view of the present invention;

Fig. 3 is the structural representation of outer rail of the present invention;

Fig. 4 is the structural representation of inner rail of the present invention;

Fig. 5 is a schematic diagram of the state where the inner rail of the present invention slides away relative to the outer rail;

Fig. 6 is a schematic diagram of the closed state of the inner rail relative to the outer rail of the present invention.

Detailed ways:

As shown in Figures 1 to 4, the present invention includes an outer rail 1 and an inner rail 2, one side of the outer rail 1 and the inner rail 2 are nested and connected by a roller bracket 3, and a reset slider 4, a hydraulic damping piston 5. Fixed cover 6 and tension spring 7; one side of the reset slider 4 is slidably set in the gap formed by the inner rail 2 and the outer rail 1, and the other side is slidably set in the fixed cover 6; the inner One end of the side of the rail 2 is provided with a dial 21 to toggle the reset slider 4, and the reset slider 4 is provided with two bumps 41 for clamping the dial 21, and one end of the reset slider 4 is provided with a reset block 42, The corresponding end of the fixed cover plate 6 is provided with a reset gap 61; one end of the tension spring 7 is affixed to the reset slider 4, and the other end is fixed in the clip 11 on the inner groove surface of the outer rail 1; the reset slider 4 rests on one end of the tension spring 7 A hydraulic damping piston 5 is connected, and the hydraulic damping piston 5 is fixed on the inner groove surface of the outer rail 1; the outer rail 1 and the inner rail 2 are provided with tabs 212 to prevent the roller bracket 3 from slipping; the roller bracket 3 and the outer rail 1. Corresponding rollers 211 are provided on the contact surfaces of the inner rail 2 .

Working principle: As shown in Figures 5 and 6, when the inner rail 2 is stretched out, the inner rail 2 can slide freely relative to the outer rail 1 driven by the roller bracket 3. At this time, the reset block 42 of the reset slider 4 is under tension. Under the pull of the spring 7, it is held in the reset notch 61 of the fixed cover plate 6. When the inner rail 2 is pushed inward, the dial column 21 on the inner rail 2 is pushed against the inner bump 41 of the reset slider 4. On the top, the dial 21 moves the bump 41 to make the reset block 42 of the reset slider 4 break away from the reset gap 61. After the toggle, the reset slider 4 rotates on the inner groove surface of the outer rail 1, and the reset slider 4 rotates through a certain angle. The dial column 21 is sandwiched between the two protrusions 41, and under the pulling force of the tension spring 7, the reset slider 4 and the inner rail are automatically reset inwardly, and when the tension spring 7 is quickly reset, a large shock will be generated to the device. The impact force is accompanied by relatively large noise, and the effect of the hydraulic damping piston 5 is to reduce the impact force brought to the device when the tension spring 7 is quickly reset, reducing noise. The same is true for the reverse movement, which will not be repeated here.

Of course, the examples described above are only preferred examples of the present invention, and are not intended to limit the scope of the present invention, so all equivalent changes or Modifications should be included in the patent scope of the present invention.

Claims (4)

1. the hydraulic pressure reducible slideway equipment capable of a hidden roller, it comprises outer rail and interior rail, a side of outer rail is connected by roller support is nested with interior rail, it is characterized in that: also include reset slide block, hydraulic damping piston, securing cover plate and a tension spring; Securing cover plate is fixed on the inner groove surface of outer rail, and between the space that rail and outer rail constituted in the described slide block one that resets breakked away and is located at, opposite side is slidingly installed in the securing cover plate; Inboard face one end of rail is provided with the reversed column of stirring the slide block that resets in described, and the slide block that resets is provided with the projection of two clip reversed columns, and an end of the slide block that resets is provided with a reset baffle block, and the corresponding end of securing cover plate is provided with the breach that resets; Tension spring one end is affixed with the slide block that resets, and the other end is fixed in the intermediate plate on the outer rail inner groove surface.

2. the hydraulic pressure reducible slideway equipment capable of a kind of hidden roller according to claim 1 is characterized in that: the described slide block that resets is connected with a hydraulic damping piston by an end of tension spring, and the hydraulic damping piston is fixed on the inner groove surface of outer rail.

3. the hydraulic pressure reducible slideway equipment capable of a kind of hidden roller according to claim 1, it is characterized in that: outer rail and interior rail are provided with the lug position that prevents the roller support landing.

4. the hydraulic pressure reducible slideway equipment capable of a kind of hidden roller according to claim 1, it is characterized in that: described roller support and outer rail, interior rail phase-contact surface all are provided with corresponding roller bearing.

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