RU2515687C2 - Slider box - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: invention relates to sliding equipment and may be used in transport facilities. In sliding box, guides (4) and (5) made of U-shaped profile are located at both sides horizontally and opposite to each other by their planes, and eight-faced rods (6) are located in them. On inclined planes of rods in through holes, rotating rolls are installed which are interacting with corners of both guides. The rods (6) are installed with limited movement relative to guides. Box fixation in extended position is performed by means of swing-aside latch by changing length of double-armed swing levers the opposite ends of which are hinged on box and body.

EFFECT: higher reliability.

7 dwg

Description

The present invention relates to retractable equipment and can be used in radio and electrical engineering, as well as in mechanical engineering for maintenance or repair of various types of bulky equipment after it has been advanced from the general array of the product in which it is installed, including for operation of the unit in extended a state, for example, to extend and work in the extended position of a small-sized power plant, the generator of which rotates from an internal combustion engine in it and which zitsya in a separate compartment of the car body and must move outwards when their work during a stop of the vehicle.

State of the art

Known retractable electronic unit (see patent for the invention of the Russian Federation No. 2069037 from 05.06.1992), containing a housing with an electrical connector on its rear wall, mounted in the housing subunit with a mating part of the electrical connector on its trailing edge and with a front panel on its opposite edge , stops placed on the walls of the housing, and two shoulders levers pivotally mounted on the front panel of the subunit from its two sides with the possibility of interaction of their working shoulders with the corresponding stops of the housing, the stops are spring-loaded in the form of a plane x parts and parts in the form of truncated cones, and the working shoulders of the two-arm levers are made in the form of elastic forks, and the subunit is equipped with latches mounted on its front panel on both sides with the possibility of interaction with other shoulders of the two-arm levers, while the latches are equipped with fuses made in in the form of brackets with locking axes pivotally connected to the corresponding latches.

A disadvantage of the known retractable block is the possibility of its use only for subunits of small mass and dimensions for their removal during maintenance or repair, while the electrical connection of the subunit to the product is interrupted. To remove a large-sized large subunit, a lifting device and a special place for maintenance when repairing a removed subunit is required, which is not always possible. In addition, the quality of the work performed can be checked only after the installation of the subunit in place, i.e. after resuming electrical connections of the subunit with the product.

Disclosure of invention

The technical result of the invention is to ensure the full extension of the subunit from the block body with fixing in the final position of the extension for the possibility of carrying out maintenance or repair in it, ensuring constant electrical connection of this subunit with the product, as well as with the possibility of operation of this unit in the extended state.

The technical result is achieved by the fact that in the drawer the new one is that the guides for extending the subunit are made of a new design: each consists of two U-shaped profiles of parts (one of them is fixed to the housing, and the other on the subunit) located horizontally with openings to each other to a friend, and in them is an octagonal rod, in which rollers are located throughout its length in through oval holes, the outer diameter and shape of which allow them to interact with diagonally opposite angles in these guides, which ensures the full extension of the subunit from the housing when extending only part of the length of the octagonal rod. In addition, when the subunit is extended, the spatial frame is automatically formed in which it is fixed, which increases the structural strength. In addition, two-arm levers and latches are used alternately to fix the subunit in the extreme positions. In addition, there is the impossibility of spontaneous movement of the octagonal rod between the rails in the extended position of the subunit in the event of any emergency situations, which improves reliability and safety during operation of the proposed device.

Brief Description of the Drawings

The essence of the invention is illustrated by drawings:

- figure 1 shows the proposed sliding block in the extended state of the subunit from the housing, for example from a separate compartment of the vehicle body, in a perspective view (open hatch of this compartment is not shown);

- figure 2 is a side view of a subunit located inside the compartment of the vehicle body, with a local cut in the lower left corner;

- figure 3 is a view along arrow A in figure 2;

- figure 4 is a section along BB in figure 2;

- figure 5 is a section along bb in figure 2;

- figure 6 is a section along G-D in figure 3;

- Fig.7 is a section along G-D in Fig.3 with the extended subunit from the housing.

FIG. 2 to 7 are enlarged.

The proposed drawer unit comprises a housing 1 (for example, a van of a vehicle), in a separate compartment 2 of which a smaller subunit 3 is installed (for example, a petrol unit for generating electricity), connected by a flexible cable (not shown conditionally) with the housing 1 and having the possibility of extension from case on the U-shaped guides 4 horizontally arranged on its two sides attached to it relative to similar guide rails 5 mounted opposite their cavities, mounted on the body 1, and in each Next to a pair of these guides, an octagonal rod 6 is located between them, the vertical faces of which are parallel to the bottom of these guides, and the inclined faces are opposite the corners in the guides (see Fig. 5), and through these oval edges of the rod 6 are made through oval holes 7 located alternately - one on one face, the next on a face perpendicular to it, and in these holes rollers 8 are installed with the possibility of rotation, the outer diameter and shape of which ensure their interaction with diagonally opposite the right angles in the cavities of the opposing guides 4 and 5, and on each guide 5 mounted on the housing 1 from the outlet side of the compartment 2, a restrictive protrusion 9 is installed, and its opposite end is placed in a longitudinal groove 10 made on the face adjacent to the bottom of the guide 5 rod 6, and on the other side of each rod 6 at its opposite end, a similar longitudinal groove 11 is made, in which an additional protrusion 12 is placed, the opposite end of which is fixed to the bottom of the guide 4 of the subunit 3. For example The four subunits 3 are connected to each other in the front part by an axis 13, on which the bracket 14 is fixed, and in the rear part by the axis 15. On the subunit 3 on its axis 13 two-arm levers 17, opposite ends, adjustable in length with the help of lanyards 16 are mounted which are installed with the possibility of rotation in the stops (brackets) 18 of the housing 1. The octagonal rods 6 on both sides of the subunit 3 can be connected to each other in a single rectangle using horizontal axes, as shown in figures 1 and 4, but can be installed in guides and pendently from each other.

On the axis 19, mounted on the housing 1, a latch 20 is mounted with a possibility of rotation in the middle of its length, and a latch 21 fastened to each other by an axis 22 on both sides thereof, and one of these latches is pivotally connected to the pivoting arm 24 by means of strips 23, mounted on the housing 1. On the rear end surface of the guides 4 of the subunit 3, an inclined section 25 is made.

The implementation of the invention

The proposed sliding unit operates as follows: to extend the subunit 3 from the position shown in FIG. 2 to the position shown in FIG. 1, it is necessary to unscrew the wing nut on the latch 20 and swing it on the axis 19 from the position shown in FIG. 2 and 6 to the position shown in FIGS. 1 and 7. Then, the subunit 3 is manually pulled out of the compartment 2 on its guides 4 relative to the guides 5, while the rollers 8, rolling along the guides 5, move the rods 6 in the longitudinal direction, and the simultaneous interaction of these same roller 4, the guide provides the same final linear movement relative to the rods 6, therefore, the linear movement of the rod 6, for example, at half of its length is provided by movement of the guide 4 at twice the distance, i.e. ensures the full extension of the subunit 3 from the compartment 2 of the housing 1, which occurs until the levers 17 form a straight line (see Fig. 1), while the rods 6 with rollers 8 provide at one end thereof in the guides 5 of the housing 1, and opposite - in the guides 4 of the subunit 3. Then, the lever 24 is manually transferred from its vertical position (see Figs. 3 and 6) to horizontal (see Figs. 1 and 7), while by means of slats 23, the latches are connected to each other by an axis 22 21 rotate on the axis 19 until their upper protrusion contacts the axis 15. Then aid turnbuckles subunit 16 is fed back to full axle pin receiving socket 15 in the latch 21 to complete sampling of all the gaps in a sliding structure that provides a rigid and reliable arrangement subunit 3 in the extended position of the casing 1 for its working, maintenance and repair. The presence of restrictive protrusions 9 and 12 on the guides 5 and 4, respectively, and the engagement of their opposite ends in the corresponding longitudinal grooves on the rods 6 serves to increase the reliability of this retractable system, preventing the spontaneous movement of the rods 6 (up to their loss from the guides 4 and 5) in emergency situations, for example, from vibrations during the operation of subunit 3.

The subunit 3 is slid into the compartment 2 of the housing 1 in the opposite order until the guides 4 abut their inclined sections 25 into the body stops corresponding to the profile in the depth of the compartment 2 (not shown conditionally), while the bracket 14 presses the latches 21 through the axis 22 to the bottom of the compartment 2 to exclude their fluctuations on the axis 19 during transportation.

The advantages of the claimed retractable unit include the provision of convenient, quick and complete extension of the subunit from the housing for operation, maintenance and repair in this position due to the proposed design of the sliding rails and devices for fixing the subunit in the extended position.

Claims (1)

A retractable unit comprising a housing with a subunit installed in it, having the ability to extend from the housing on rails with a constant electrical connection to the housing via a flexible cable, stops placed on the housing, and two-arm levers pivotally mounted on the subunit from its two sides with the possibility of turning them opposite ends in the respective stops of the housing, and the subunit is fixed in its working position by means of latches, characterized in that the guides of the housing and subunit, made U-shaped profile, are located horizontally and opposite each other with their cavities on both sides of the subunit, and in these oncoming cavities there is an octagonal cross-section rod, the vertical faces of which are parallel to the bottom of these guides, and the inclined faces are opposite the angles in the guides, and on these faces of the rod along through the entire length there are through oval holes arranged alternately - one on one face, the next on a face perpendicular to it, and the rollers are mounted rotatably in these holes, the outer diameter the meter and the shape of which ensure their interaction with diagonally opposite angles in the cavities of the oncoming guides, while a restrictive protrusion is mounted on the side of its output window on each rail on the side of its output window and its opposite end is placed in a longitudinal groove made on the rail adjacent to the bottom face of the rod, and on the other side of the rod at its opposite end, a similar longitudinal groove is made in which an additional protrusion is placed, the opposite end of which th is fixed at the bottom of the guide sub-block, and a latch pivotally mounted on the axis of the housing and interacting with subunit in its extended position and sub-block levers are adjustable in length by means of the turnbuckles.

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