Telescopic frame suitable for auxiliary drawing of cabinet equipment

Abstract

The invention discloses a telescopic frame suitable for auxiliary drawing of cabinet equipment, which ensures the stability of a whole rack during drawing, and can be provided with a proper telescopic frame mechanism according to a cabinet and a length-width ratio, so that a drawer can be completely opened. The supporting cross beam comprises an upper plate, a lower plate and a first connecting plate in the height direction; the first folding rod comprises a first upper plate, a first lower plate and a vertical connecting frame which is vertically arranged; the double-folding rods comprise inner folding rods and outer folding rods, the length direction ends, away from the front protruding blocks, of the inner folding rods are used for being in pivot joint with the first front protruding blocks, the length direction ends, close to the front protruding blocks, of the inner folding rods are in pivot joint with the length direction corresponding ends of the outer folding rods, and the length direction ends, away from the front protruding blocks, of the outer folding rods are provided with second front protruding blocks; and the connecting bracket comprises a folding rod connecting end and a drawer connecting end.

Description

Technical Field

[0001] The invention relates to the technical field of cabinet structures, and in particular to a telescopic frame suitable for auxiliary drawing and pulling of cabinet equipment. Background Art

[0002] After the server cabinet is assembled, it is necessary to put a drawer structure in the stacked interval. Generally, there are two operation modes. One is to place a pull-out guide rail between the two sides of the drawer and the interval side walls of the corresponding height, so as to limit the drawer pull-out depth; the other is to set a guide partition in the height interval, and the guide bars on both sides of the drawer are supported on the guide partition. The depth of the guide bar is generally greater than that of the drawer, so that the drawer can be completely pulled out of the cabinet, and then a telescopic frame is set between the inner end plate and the frame of the drawer. The telescopic length of the telescopic frame is used to limit the pull-out depth of the drawer. However, when the existing telescopic frame is pulled out, it is generally a two-fold structure, and its two sets of folding plates are telescopic frames involved in the extension and retraction. Rod structure, resulting in the telescopic frame being connected to the cabinet only through a single rotating shaft, causing the cabinet to vibrate or shake when actually pulling it out; and because the current telescopic frames are all two-fold mechanisms, when pulling it out, the maximum theoretical range of its pulling and moving is twice the width of the cabinet. When actually pulling it out, due to the existence of wall thickness and spacing, the maximum pulling and moving range will be smaller than twice the width of the cabinet. The aspect ratio of some cabinets is greater than 2, which makes it impossible to fully open the drawer. Some space will still be located in the inner cavity of the cabinet, making it relatively difficult to disassemble and assemble the equipment. For this reason, it is urgently necessary to develop a telescopic frame that can adapt to different depths for pulling and moving, and can ensure the overall stability of the cabinet when the drawer is pulled out. Summary of the invention

[0003] In view of the above problems, the present invention provides a telescopic rack suitable for auxiliary pulling of cabinet equipment, which ensures the stability of the entire rack during pulling, and a suitable telescopic rack mechanism can be set according to the cabinet and the aspect ratio so that the drawer can be fully opened.

[0004] A telescopic frame suitable for auxiliary pulling of cabinet equipment, characterized in that it comprises:

[0005] A supporting crossbeam, comprising an upper plate, a lower plate, and a first connecting plate in a height direction, wherein the upper plate and the lower plate are connected to form a crossbeam assembly through the first connecting plate, wherein the upper plate and the lower plate are respectively fixed to a rear end layer plate of a corresponding height of the cabinet through a plurality of evenly distributed positioning holes in the length direction, wherein one end of the upper plate and the lower plate is respectively provided with a front protrusion, and each of the front protrusions is provided with a first pivoting circular hole;

[0006] A first folding rod, comprising a first upper plate, a first lower plate, and a vertical connecting frame arranged vertically, wherein the first upper plate and the first lower plate form an integrated structure through the vertical connecting frame, wherein the first upper plate and the first lower plate are respectively provided with first rear protrusions at positions corresponding to the front protrusions, and the first upper plate and the first lower plate are respectively provided with first front protrusions at positions in the length direction away from the front protrusions;

[0007] At least one set of double folding rods, comprising an inner folding rod and an outer folding rod, wherein the inner folding rod at its end in the length direction away from the front protrusion is used to be pivotally connected to the first front protrusion, the inner folding rod at its end in the length direction close to the front protrusion is pivotally connected to the outer folding rod at its end in the length direction, and the outer folding rod at its end in the length direction away from the front protrusion is provided with a second front protrusion;

[0008] and a connecting bracket, which includes a folding rod connecting end and a drawer connecting end;

[0009] The positioning holes of the upper plate and the lower plate are respectively provided with pad rings, and then the rear end layer plate of the cabinet of corresponding height is fixed by fasteners; the front protrusion of the supporting beam and the first rear protrusion of the first folding rod are pivotally connected through a pivot shaft structure, the first front protrusion is connected to the corresponding end of the inner folding rod of the double folding rod at the rear end through the pivot shaft structure, the inner folding rod of each group of double folding rods is connected to the corresponding end of the outer folding rod through a pivot structure, the double folding rods located at the rear end are respectively connected to the inner folding rods of the double folding rods at the front end adjacent to them, the second front protrusion of the outer folding rod of the frontmost double folding rod is pivotally connected to the folding rod connecting end of the connecting bracket, and the drawer connecting end of the connecting bracket is fixed to the corresponding position of the rear end of the drawer.

[0010] It is further characterized by:

[0011] The inner folding rod comprises an inner upper plate, an inner lower plate, and an inner vertical frame, and the inner upper plate and the inner lower plate are connected by an inner vertical bracket to form an integrated structure;

[0012] The outer folding rod comprises an outer upper plate, an outer lower plate, and an outer vertical frame, and the outer upper plate and the outer lower plate are connected by the outer vertical frame to form an integrated structure;

[0013] When the inner folding rod and the outer folding rod of the double folding rod are in the folded state, the rear end portion of the outer upper plate covers the upper area of ​​the inner upper plate, and the rear end portion of the outer lower plate is located in the lower area of ​​the inner lower plate. The rear ends of the outer upper plate and the outer lower plate are respectively provided with stop edges, and the stop edges are used to closely contact the front end edges of the corresponding outer upper plate and the outer lower plate of the adjacent front double folding rod. The entire structure occupies a small depth space in the folded state, so that the depth of the drawer can be set relatively deep, which is used to place larger equipment;

[0014] The rear ends of the first upper plate and the first lower plate are synchronously provided with stopper end edges. When the first folding rod is in the folded state, the rear end portion of the first upper plate is located in the upper area of ​​the upper plate, and the rear end portion of the first lower plate is located in the lower part of the lower plate. The stopper end edges of the first upper plate and the first lower plate are both closely attached to the edge of the padding ring to ensure that the depth is small in the folded state.

[0015] In the folded state, the inner upper plate of the double folding rod at the rear end is located at the lower part of the first upper plate, the inner lower plate is located at the upper part of the first lower plate, the stop edge of the outer upper plate of the double folding rod at the rear end is arranged close to the front end edge of the first upper plate, and the stop edge of the outer lower plate is arranged close to the front end edge of the first lower plate, so as to ensure that the depth in the folded state is small;

[0016] The vertical connection frame is a frame structure with horizontal and vertical bars arranged, and a plurality of forward convex stopper and limiting protrusions are arranged on the front end surface of the vertical frame, which are used to prevent collision with the inner vertical frame of the adjacent bifold plate, thereby ensuring stable and reliable limiting;

[0017] The outer vertical frame is a frame structure with horizontal and vertical bars arranged. A plurality of forward convex stop and limit protrusions are arranged on the front end surface of the outer vertical frame, which are used to prevent collision with the inner vertical frame of the adjacent double-folding plate, thereby ensuring stable and reliable limit.

[0018] After adopting the structure of the present invention, the length-width ratio of the cabinet can be designed arbitrarily. When selecting the telescopic frame, according to the depth of the drawer, a telescopic frame mechanism is assembled and combined by a supporting beam, a first folding rod, a corresponding number of double folding rods, and a connecting bracket. The upper plate and the lower plate of the supporting beam of the telescopic frame are respectively fixed to the rear end layer plate of the frame through a plurality of fasteners, so that when the first folding rod and the double folding rod are in telescopic action, the entire telescopic frame is connected to the frame through the supporting beam. Since a plurality of fasteners are provided for connection, the frame will not shake, thereby ensuring the stability of the entire frame when pulling and drawing. In addition, a corresponding number of double folding rods can be selected according to the cabinet and the length-width ratio, thereby setting a suitable telescopic frame mechanism so that the drawer can be fully opened. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of a specific embodiment of the present invention;

[0020] Figure 2 It is an exploded view of the assembly of the double-folding rod and the connecting bracket of the present invention;

[0021] The names corresponding to the serial numbers in the figure are as follows:

[0022] Stop limit protrusion 1;

[0023] Support beam 10, upper plate 11, lower plate 12, first connecting plate 13, positioning hole 14, front protrusion 15, first pivot circular hole 16, spacer ring 17, first folding rod 20, first upper plate 21, first lower plate 22, vertical connecting frame 23, first rear protrusion 24, first front protrusion 25, stop end edge 26, double folding rod 30, connecting bracket 40, folding rod connecting end 41, drawer connecting end 42, inner folding rod 50, inner upper plate 51, inner lower plate 52, inner vertical frame 53, outer folding rod 60, second front protrusion 61, outer upper plate 62, outer lower plate 63, outer vertical frame 64, stop edge 65. DETAILED DESCRIPTION

[0024] A telescopic rack suitable for auxiliary pulling of cabinet equipment, see Figure 1 and Figure 2 , which comprises a supporting beam 10, a first folding rod 20, at least one set of double folding rods 30, and a connecting bracket 40;

[0025] The supporting crossbeam 10 includes an upper plate 11, a lower plate 12, and a first connecting plate 13 in the height direction. The upper plate 11 and the lower plate 12 form a crossbeam assembly through the first connecting plate 13. The upper plate 11 and the lower plate 12 are respectively fixed to the rear end layer plate of the corresponding height of the cabinet through a plurality of evenly distributed positioning holes 14 in the length direction. One end of the upper plate 11 and the lower plate 12 is respectively provided with a front protrusion 15, and each front protrusion 15 is provided with a first pivoting circular hole 16;

[0026] The first folding rod 20 includes a first upper plate 21, a first lower plate 22, and a vertical connecting frame 23 arranged vertically. The first upper plate 21 and the first lower plate 22 form an integral structure through the vertical connecting frame 23. The first upper plate 21 and the first lower plate 22 are respectively provided with first rear protrusions 24 at positions corresponding to the front protrusions 15. The upper plate 21 and the first lower plate 22 are respectively provided with first front protrusions 25 at lengthwise positions away from the front protrusions 15.

[0027] Each set of double folding rods 30 includes an inner folding rod 50 and an outer folding rod 60. The lengthwise end of the inner folding rod 50 away from the front protrusion 15 is used to pivotally connect to the first front protrusion 25. The lengthwise end of the inner folding rod 50 close to the front protrusion 15 is pivotally connected to the lengthwise corresponding end of the outer folding rod 60. The lengthwise end of the outer folding rod 60 away from the front protrusion 15 is provided with a second front protrusion 61.

[0028] The connecting bracket 40 includes a folding rod connecting end 41 and a drawer connecting end 42 .

[0029] In a specific embodiment, the number of the double-folding rod 30 is one, and the entire telescopic frame is a three-fold telescopic frame.

[0030] The positioning holes 14 of the upper plate 11 and the lower plate 12 are respectively provided with a spacer ring 17, which is then fixed to the rear end layer of the cabinet at a corresponding height by fasteners. The spacer ring 17 ensures the reliability of the fasteners after tightening and ensures that there is no gap in the subsequent assembly; the front protrusion 15 of the supporting beam 10 and the first rear protrusion 24 of the first folding rod 20 are pivotally connected through a pivot axis structure, and the first front protrusion 25 is pivotally connected to the inner folding rod 50 of the double folding rod 30 of the pivot axis structure, and the second front protrusion 61 of the outer folding rod 60 of the double folding rod 30 is pivotally connected to the folding rod connecting end 41 of the bracket 40, and the drawer connecting end 42 of the connecting bracket 40 is fixed to the corresponding position of the rear end of the drawer.

[0031] In a specific embodiment, the inner folding rod 50 includes an inner upper plate 51, an inner lower plate 52, and an inner vertical frame 53. The inner upper plate 51 and the inner lower plate 52 are connected by an inner vertical bracket 53 to form an integrated structure.

[0032] The outer folding rod 60 includes an outer upper plate 62, an outer lower plate 63, and an outer vertical frame 64. The outer upper plate 62 and the outer lower plate 63 are connected by the outer vertical frame 64 to form an integrated structure.

[0033] When the inner folding rod 50 and the outer folding rod 60 of the double folding rod 30 are in the folded state, the rear end portion of the outer upper plate 62 covers the upper area of ​​the inner upper plate 51, and the rear end portion of the outer lower plate 63 is located in the lower area of ​​the inner lower plate 52. The rear ends of the outer upper plate 62 and the outer lower plate 63 are respectively provided with stop edges 65;

[0034] The rear ends of the first upper plate 21 and the first lower plate 22 are synchronously provided with a stopper end edge 26. When the first folding rod 20 is in the folded state, the rear end portion of the first upper plate 21 is located in the upper area of ​​the upper plate 11, and the rear end portion of the first lower plate 22 is located in the lower part of the lower plate 12. The stopper end edges 26 of the first upper plate 21 and the first lower plate 22 are both closely attached to the edge of the pad ring 17, ensuring that the depth is small in the folded state;

[0035] In the folded state, the inner upper plate 51 of the double folding rod 30 at the rear end is located at the lower part of the first upper plate 21, the inner lower plate 52 is located at the upper part of the first lower plate 22, the stop edge 65 of the outer upper plate 62 of the double folding rod 30 is arranged close to the front end edge of the first upper plate 21, and the stop edge 65 of the outer lower plate 63 is arranged close to the front end edge of the first lower plate 22, ensuring that the depth in the folded state is small.

[0036] The vertical connection frame 23 is a frame structure with horizontal and vertical bars. A plurality of forward convex stopper protrusions 1 are provided on the front end surface of the vertical connection frame 23 to prevent collision with the inner vertical frame 53 of the double folding plate 30, thereby ensuring stable and reliable limiting.

[0037] The outer frame 64 is a frame structure with horizontal and vertical bars. A plurality of forward protruding stop and limit protrusions 1 are provided on the front end surface of the outer frame 64, which are used to prevent collision with the inner frame 53 of the adjacent double-folding plate 30 or the drawer, thereby ensuring stable and reliable limiting.

[0038] Its working principle is as follows: the length-to-width ratio of the cabinet can be designed arbitrarily. When selecting a telescopic frame, a telescopic frame mechanism is assembled and combined by a supporting beam, a first folding rod, a corresponding number of double folding rods, and a connecting bracket according to the depth of the drawer. The upper plate and the lower plate of the supporting beam of the telescopic frame are respectively fixed to the rear end layer plate of the frame through a plurality of fasteners, so that when the first folding rod and the double folding rod are in telescopic action, the entire telescopic frame is connected to the frame through the supporting beam. Since a plurality of fasteners are provided for connection, the frame will not shake, thereby ensuring the stability of the entire frame when pulling and drawing. In addition, a corresponding number of double folding rods can be selected according to the cabinet and the length-to-width ratio, thereby setting a suitable telescopic frame mechanism so that the drawer can be fully opened.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0040] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A telescopic rack suitable for auxiliary pulling of cabinet equipment, characterized in that: It includes: A supporting crossbeam, comprising an upper plate, a lower plate, and a first connecting plate in a height direction, wherein the upper plate and the lower plate are connected to form a crossbeam assembly through the first connecting plate, wherein the upper plate and the lower plate are respectively fixed to a rear end layer plate of a corresponding height of the cabinet through a plurality of evenly distributed positioning holes in the length direction, wherein one end of the upper plate and the lower plate is respectively provided with a front protrusion, and each of the front protrusions is provided with a first pivoting circular hole; A first folding rod, comprising a first upper plate, a first lower plate, and a vertical connecting frame arranged vertically, wherein the first upper plate and the first lower plate form an integrated structure through the vertical connecting frame, wherein the first upper plate and the first lower plate are respectively provided with first rear protrusions at positions corresponding to the front protrusions, and the first upper plate and the first lower plate are respectively provided with first front protrusions at positions in the length direction away from the front protrusions; At least one set of double folding rods, comprising an inner folding rod and an outer folding rod, wherein the inner folding rod at its end in the length direction away from the front protrusion is used to be pivotally connected to the first front protrusion, the inner folding rod at its end in the length direction close to the front protrusion is pivotally connected to the outer folding rod at its end in the length direction, and the outer folding rod at its end in the length direction away from the front protrusion is provided with a second front protrusion; and a connecting bracket, which includes a folding rod connecting end and a drawer connecting end; The positioning holes of the upper plate and the lower plate are respectively provided with pad rings, and then the rear end layer plate of the cabinet of corresponding height is fixed by fasteners; the front protrusion of the supporting beam and the first rear protrusion of the first folding rod are pivotally connected through a pivot shaft structure, the first front protrusion is connected to the corresponding end of the inner folding rod of the double folding rod at the rear end through the pivot shaft structure, the inner folding rod of each group of double folding rods is connected to the corresponding end of the outer folding rod through a pivot structure, the double folding rods located at the rear end are respectively connected to the inner folding rods of the double folding rods at the front end adjacent to them, the second front protrusion of the outer folding rod of the frontmost double folding rod is pivotally connected to the folding rod connecting end of the connecting bracket, and the drawer connecting end of the connecting bracket is fixed to the corresponding position of the rear end of the drawer.

2. The telescopic rack suitable for auxiliary pulling of cabinet equipment according to claim 1, characterized in that: The inner folding rod comprises an inner upper plate, an inner lower plate and an inner vertical frame, and the inner upper plate and the inner lower plate are connected by an inner vertical bracket to form an integrated structure.

3. The telescopic rack suitable for auxiliary pulling of cabinet equipment according to claim 2, characterized in that: The outer folding rod comprises an outer upper plate, an outer lower plate and an outer vertical frame, and the outer upper plate and the outer lower plate are connected by the outer vertical frame to form an integrated structure.

4. The telescopic frame suitable for auxiliary pulling of cabinet equipment according to claim 3, characterized in that: When the inner folding rod and the outer folding rod of the double folding rod are in a folded state, the rear end portion of the outer upper plate covers the upper area of ​​the inner upper plate, and the rear end portion of the outer lower plate is located in the lower area of ​​the inner lower plate. The rear ends of the outer upper plate and the outer lower plate are respectively provided with stop edges, and the stop edges are used to closely contact the front end edges of the corresponding outer upper plate and the outer lower plate of the adjacent front end double folding rod.

5. The telescopic rack suitable for auxiliary pulling of cabinet equipment according to claim 4, characterized in that: The rear ends of the first upper plate and the first lower plate are synchronously provided with stop end edges. When the first folding rod is in the folded state, the rear end part of the first upper plate is located in the upper area of ​​the upper plate, and the rear end part of the first lower plate is located in the lower part of the lower plate. The stop end edges of the first upper plate and the first lower plate are both close to the edge of the pad ring.

6. The telescopic frame suitable for auxiliary pulling of cabinet equipment according to claim 5, characterized in that: In the folded state, the inner upper plate of the double-fold rod at the rear end is located at the lower part of the first upper plate, the inner lower plate is located at the upper part of the first lower plate, the stop edge of the outer upper plate of the double-fold rod at the rear end is arranged close to the front end edge of the first upper plate, and the stop edge of the outer lower plate is arranged close to the front end edge of the first lower plate.

7. The telescopic rack suitable for auxiliary pulling of cabinet equipment according to claim 1, characterized in that: The vertical connection frame is a frame structure with horizontal and vertical bars arranged, and a plurality of forward-protruding stop and limit protrusions are arranged on the front end surface of the vertical frame.

8. The telescopic frame suitable for auxiliary pulling of cabinet equipment according to claim 3, characterized in that: The external vertical frame is a frame structure with horizontal and vertical bars arranged, and a plurality of forward-protruding stop and limit protrusions are arranged on the front end surface of the external vertical frame.

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