Compact shelf chassis structure convenient to disassemble and assemble

Abstract

The compact shelf chassis structure convenient to disassemble and assemble comprises a fixed frame and a movable frame, the fixed frame is used for being fixedly connected with the bottom of a compact shelf, the fixed frame covers the outer side of the movable frame, idler wheels are installed in the movable frame through connecting rods, and the idler wheels protrude out of the lower surface of the movable frame. A supporting plate is fixed to the inner bottom of the movable frame, a worm wheel disc is rotationally installed on the supporting plate, a screw penetrates through the interior of the worm wheel disc and is in threaded connection with the worm wheel disc, a bracket is fixed to the screw, a worm is connected to the edge of the worm wheel disc in an engaged mode, and the worm is rotationally connected with the movable frame through a rotating rod. According to the compact shelf, the fixed frame is separated from the ground when the bracket in the movable frame jacks up the fixed frame, and the fixed frame falls on the ground again for supporting when the bracket retracts into the movable frame, so that the movable frame can be disassembled and assembled under the condition that the compact shelf does not need to be put down or moved away; and the whole chassis structure is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of compact racks, in particular to a chassis structure for compact racks which is easy to disassemble and assemble. Background Art

[0002] The compact shelving, also known as the compact cabinet, is a type of compact filing equipment. It can be defined as follows: it is a shelf with axle wheels installed on the base of a double-column double-sided fixed frame, which can move in a straight line along a small guide rail laid on the ground. Multiple shelves can be brought together or separated as needed.

[0003] The chassis and cabinets of existing compact shelving are mostly fixedly installed. When the chassis needs to be repaired, the compact shelving usually needs to be laid down first before the chassis and cabinet can be disassembled, or the cabinet needs to be moved away from the chassis during disassembly. However, for compact shelving with files already placed on it, the cabinet is heavy, and both the laying down and moving operations are troublesome, which makes the disassembly of the chassis very inconvenient.

[0004] Therefore, we propose a chassis structure for compact shelving that is easy to disassemble and assemble to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a chassis structure for compact racks that is easy to disassemble and assemble, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The invention relates to a chassis structure for a compact shelving system which is easy to disassemble and assemble, comprising a fixed frame and a movable frame, wherein the fixed frame is used to be fixedly connected to the bottom of the compact shelving system, and the fixed frame covers the outside of the movable frame, a roller is installed inside the movable frame through a connecting rod, and the roller protrudes from the lower surface of the movable frame, a support plate is fixed to the inner bottom of the movable frame, and a worm gear is rotatably installed on the support plate, a screw rod passes through the inside of the worm gear plate and is threadedly connected, and a bracket for supporting the fixed frame is fixed on the screw rod, a worm is meshingly connected to the edge of the worm gear plate, and the worm is rotatably connected to the movable frame through a rotating rod, and one end of the rotating rod passes through the outer wall of the movable frame and is fixed with a handle, limiting grooves are provided at the four corners of the bracket, and limiting blocks corresponding to the limiting grooves are connected to the inner bottom surface of the fixed frame.

[0008] Preferably, the number of the worm gear and the worm is at least two groups.

[0009] In a further embodiment, an inspection door is installed on the side wall of the movable frame by bolts, and a receiving groove is provided on the inspection door near the handle, and the handle is received in the receiving groove.

[0010] Furthermore, a hexagonal protrusion is provided at the center of the handle.

[0011] Preferably, the bracket adopts an I-shaped structure.

[0012] In a further embodiment, a side port of the limiting groove close to the fixing frame is chamfered to form an inclined guide groove.

[0013] Preferably, a through hole for the screw to pass through is provided on the surface of the support plate coaxially with the worm wheel.

[0014] Preferably, two connecting rods are provided, and two rollers are symmetrically mounted on each connecting rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model provides a bracket in the movable frame, which can make the fixed frame leave the ground when the fixed frame is lifted up, so that the compact rack can move together with the movable frame; when the bracket is retracted into the movable frame, the fixed frame can fall on the ground again for support, and the movable frame can be drawn out from the side of the fixed frame at this time, which is convenient for the inspection and maintenance of the movable frame. The movable frame can be disassembled and assembled without laying down or moving the compact rack, making the entire chassis structure more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the movable frame of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the movable frame of the utility model when viewed from above;

[0020] Figure 4 This is a schematic diagram of the bottom view of the structure of the connection between the fixing frame and the bracket of the utility model;

[0021] Figure 5 This is a schematic diagram of the partial structure of the bracket of the utility model;

[0022] Figure 6 This is a schematic diagram of the cross-sectional structure of the fixing frame of the utility model when it is propped up;

[0023] Figure 7 It is a schematic diagram of the cross-sectional structure of the fixing frame of the utility model when it falls.

[0024] In the figure: 1, fixed frame; 2, movable frame; 21, inspection door; 3, connecting rod; 4, roller; 5, support plate; 6, worm gear; 7, screw; 8, bracket; 81, limit groove; 811, guide groove; 9, rotating rod; 10, worm; 11, handle; 12, limit block. DETAILED DESCRIPTION

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-3, A chassis structure for a compact rack that is convenient for disassembly and assembly, including a fixed rack 1 and a movable rack 2. The cross-section of the fixed rack 1 adopts an inverted U-shaped structure with both ends open. The fixed rack 1 covers the outside of the movable rack 2. Multiple pairs of screw holes are provided on the top surface of the fixed rack 1, facilitating fixed connection with the bottom of the compact rack through bolts. The fixed rack 1 can support the compact rack. A connecting rod 3 is installed inside the movable rack 2. Both ends of the connecting rod 3 are rotatably connected to the movable rack 2, and the connecting rod 3 is parallel to the long side of the movable rack 2. A roller 4 is fixedly installed on the surface of the connecting rod 3, and the roller 4 protrudes from the lower surface of the movable rack 2 to facilitate driving the movement of the movable rack 2. A support plate 5 is fixed to the inner bottom of the movable rack 2, and a worm wheel disc 6 is rotatably installed on the support plate 5. A screw rod 7 passes through and is threadedly connected to the inside of the worm wheel disc 6. A through hole for the screw rod 7 to pass through is provided at the coaxial center of the surface of the support plate 5 and the worm wheel disc 6, facilitating the lifting and lowering of the screw rod 7. A bracket 8 for supporting the fixed rack 1 is fixed on the screw rod 7. The bracket 8 adopts an I-shaped structure, which not only ensures the support effect but also helps prevent it from overlapping with the roller 4, affecting the retraction of the bracket 8 into the movable rack 2. When the worm wheel disc 6 rotates, the screw rod 7 can drive the bracket 8 to rise or fall under the action of the thread, so as to support the fixed rack 1 or drive the fixed rack 1 to fall back. The edge of the worm wheel disc 6 is meshed with a worm 10. Both ends of the worm 10 are coaxially fixed with a rotating rod 9, and the end of the rotating rod 9 away from the worm 10 is rotatably connected to the movable rack 2. One end of the rotating rod 9 passes through the outer wall of the movable rack 2 and is fixed with a handle 11, so that by rotating the handle 11, the rotating rod 9 can be driven to rotate. The rotating rod 9 drives the worm 10 to rotate, and the worm 10 meshes with the worm wheel disc 6 to drive the rotation of the worm wheel disc 6.

[0029] Please refer to Figure 2-5 , To ensure the stability of the support of the bracket 8 for the fixed rack 1, limit slots 81 are provided at the four corners of the bracket 8, and limit blocks 12 corresponding to the limit slots 81 one by one are connected to the inner bottom surface of the fixed rack 1. When the bracket 8 is close to the inside of the fixed rack 1, the limit blocks 12 just fit into the limit slots 81, thus forming a limiting effect to prevent deviation between the fixed rack 1 and the bracket 8. To facilitate the positioning of the limit block 12 and the limit slot 81, an inclined guide slot 811 is formed by chamfering on one side port of the limit slot 81 close to the fixed rack 1. The setting of the guide slot 811 makes the top port of the limit slot 81 larger, facilitating the alignment and insertion of the limit block 12.

[0030] Please refer to Figure 2-3 and Figure 6-7 , To ensure the stability of the lifting of the bracket 8, the number of the worm wheel disc 6 and the worm 10 is at least set to two groups. This can not only improve the strength during support, but also the two groups of the worm wheel disc 6 and the worm 10 are paired with two screw rods 7, so that the two screw rods 7 can limit each other, thus preventing the screw rod 7 from rotating with the worm wheel disc 6 and being unable to lift and lower.

[0031] Please refer to Figure 1-3 In order to improve the safety of the entire chassis structure, an inspection door 21 is installed on the side wall of the movable frame 2 by bolts. The inspection door 21 is provided with a receiving groove near the handle 11, and the handle 11 is received in the receiving groove so that the handle 11 does not protrude from the receiving groove, thereby avoiding the possibility of accidental rotation. In order to facilitate the operator to control the rotation of the handle 11, a hexagonal protrusion is provided at the center of the handle 11, so that the hexagonal protrusion can be sleeved with a hexagonal sleeve to control the rotation of the handle 11.

[0032] See also Figure 2-3 and Figure 6-7 In order to improve the stability of the movement of the movable frame 2, two connecting rods 3 are provided, and the two connecting rods 3 are symmetrically distributed about the center line of the movable frame 2, and two rollers 4 are symmetrically installed on each connecting rod 3, so that the entire chassis structure is supported by four rollers 4, which has higher stability.

[0033] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0034] 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 chassis structure for compact shelving that is easy to assemble and disassemble, comprising a fixed frame (1) and a movable frame (2), characterized in that: The fixed frame (1) is used for being fixedly connected with the bottom of the compact rack, and the fixed frame (1) covers the outside of the movable frame (2), the inside of the movable frame (2) is equipped with a roller (4) through a connecting rod (3), and the roller (4) protrudes from the lower surface of the movable frame (2), the inner bottom of the movable frame (2) is fixed with a support plate (5), and a worm wheel (6) is rotatably installed on the support plate (5), and a screw (7) is penetrated and threadedly connected to the inside of the worm wheel (6), and the screw (7) is A bracket (8) for supporting the fixed frame (1) is fixed, the edge of the worm wheel (6) is meshedly connected with a worm (10), the worm (10) is rotatably connected to the movable frame (2) through a rotating rod (9), and one end of the rotating rod (9) passes through the outer wall of the movable frame (2) and is fixed with a handle (11), the four corners of the bracket (8) are provided with limit slots (81), and the inner bottom surface of the fixed frame (1) is connected with limit blocks (12) corresponding to the limit slots (81) one by one.

2. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: The worm wheel (6) and the worm (10) are provided in at least two groups.

3. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: An inspection door (21) is installed on the side wall of the movable frame (2) by means of bolts. The inspection door (21) is provided with a receiving groove near the handle (11), and the handle (11) is received in the receiving groove.

4. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: A hexagonal protrusion is provided at the center of the handle (11).

5. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: The bracket (8) adopts an I-shaped structure.

6. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: An end portion of the limiting groove (81) close to the fixing frame (1) is chamfered to form an inclined guide groove (811).

7. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: A through hole for the screw rod (7) to pass through is provided on the surface of the support plate (5) coaxially with the worm wheel disc (6).

8. The chassis structure for compact shelving that is easy to assemble and disassemble according to claim 1 is characterized in that: Two connecting rods (3) are provided, and two rollers (4) are symmetrically mounted on each connecting rod (3).

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