Storage shelf
By introducing metal reinforcing plates and interference-fit plastic tube structures into the plastic shelves, combined with metal risers, the problems of easy deformation and loosening of the shelves are solved, achieving the effects of structural stability, easy movement, and expanded volume.
Patent Information
- Application Number
- CN202520770331.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-22
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-22
AI Technical Summary
Existing shelving units are prone to deformation and loosening during use, and are inconvenient to transport and move.
The plastic shelving unit incorporates metal reinforcing plates and an interference-fit plastic tube structure, combined with metal risers and connectors, to enhance structural strength and facilitate movement.
The plastic shelves are designed to be resistant to deformation and loosening, and are easy to move and expand in volume. They are also simple and safe to install and operate.
Smart Images
Figure CN223962456U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a storage shelf. Background Technology
[0002] Some storage shelves on the market are made of wood or stainless steel, which are structurally stable, but they are heavy, expensive, and require bulky packaging, making them inconvenient to transport. Other storage shelves are made of injection-molded plastic. Plastic storage shelves are prone to deformation along their length under load over time. Moreover, most plastic storage shelves are assembled using interlocking joints, which are prone to loosening, and the overall structure of plastic storage shelves is not easy to move. Utility Model Content
[0003] The purpose of this invention is to provide a shelf that is not easily deformed or loosened.
[0004] The purpose of this utility model is achieved as follows.
[0005] A shelf unit includes at least one plastic shelf body with a cavity inside. It also includes a first plastic tube. A first mounting hole is located at the top corner of the plastic shelf body, and a second mounting hole is located at the bottom of the plastic shelf body corresponding to the first mounting hole. Both the first and second mounting holes have abutment protrusions. A clamping gap is formed between the side of the abutment protrusion and the inner sidewall of the corresponding first or second mounting hole. The first plastic tube is inverted U-shaped. The uppermost plastic shelf body has two parallel first plastic tubes. Each end of the first plastic tube is inserted into two adjacent first mounting holes. The clamping gap and the end of the first plastic tube are interference-fitted. The first plastic tubes form handles for the plastic shelf body. A metal reinforcing plate is provided along the length of the sidewall of the plastic shelf body.
[0006] This invention increases the structural strength of the plastic shelf body along its length by using a metal reinforcing plate, making it less prone to deformation during use. Furthermore, the first plastic tube and the plastic shelf body are interference-fitted, preventing them from loosening and serving as a handle for easy movement of the plastic shelf body.
[0007] Furthermore, the sidewall along the length of the plastic shelf body has a recessed fixing groove extending from the bottom of the outer side upwards over the top to the upper middle part of the inner side. The top of the metal reinforcing plate is bent inwards with an inverted U-shaped hook, and the bottom of the metal reinforcing plate is bent inwards with an L-shaped limiting part. The top of the metal reinforcing plate is fastened into the fixing groove at the top of the plastic shelf body through the inverted U-shaped hook, and the bottom of the metal reinforcing plate is engaged with the fixing groove at the bottom of the plastic shelf body through the L-shaped limiting part. Both ends of the metal reinforcing plate abut against the sidewall of the fixing groove.
[0008] The metal reinforcing plate is clipped onto the side wall of the plastic shelf body, making installation easy and the connection secure. The fixing groove covers the edge of the metal reinforcing plate to prevent it from scratching people.
[0009] The L-shaped limiting part bends downward at its end to extend into the operating part.
[0010] The operating section facilitates operation of the L-shaped limiting part, allowing for easy and safe insertion or removal of the L-shaped limiting part from the fixing groove.
[0011] Two abutting protrusions are provided in both the first and second mounting holes. The two abutting protrusions are arranged in parallel. The clamping gap is formed between the two ends of the abutting protrusions and the inner sidewall of the corresponding first or second mounting hole. The abutting protrusions are provided with guide slopes to guide the clamping gap.
[0012] The abutment protrusion uses the end with the smaller contact surface as a clamping surface, which is beneficial for assembly, and the guide slope further facilitates interference fit assembly.
[0013] Both the first and second mounting holes are rounded triangular holes, and the first plastic tube is a rounded triangular hollow tube.
[0014] The first type of plastic tube is not easily displaced.
[0015] The cavity is provided with a first connecting hole corresponding to the first mounting hole, and the end of the first plastic tube is provided with a second connecting hole. After the end of the first plastic tube is inserted into the first mounting hole, the first connecting hole and the second connecting hole are aligned and connected and fixed by a connector.
[0016] The first plastic tube and the plastic shelf body are fastened together by connectors, improving the overall structural strength. The connectors are concealed, meaning they are not visible from the outside of the shelf.
[0017] It also includes a hollow metal riser and a second plastic tube. The top of the metal riser is inserted into the second mounting hole, and the top of the metal riser and the clamping gap are interference fit. The second plastic tube is U-shaped, and both ends of the second plastic tube are inserted into the bottom of the corresponding metal riser. The plastic shelf body is suspended in the air through the metal riser and the second plastic tube. The bottom surface of the plastic shelf body, the metal riser and the second plastic tube form a placement cavity.
[0018] Metal risers and second plastic tubes support the plastic shelf body, and the storage cavity can be used to place items such as microwave ovens.
[0019] The hollow metal riser connects adjacent plastic shelf bodies in the vertical direction. The cavity has a first connecting hole corresponding to the first mounting hole, a third connecting hole corresponding to the second mounting hole, and a fourth connecting hole at each end of the metal riser. The top of the metal riser is inserted into the corresponding second mounting hole, and the bottom of the metal riser is inserted into the corresponding first mounting hole. The third and fourth connecting holes, as well as the first and fourth mounting holes, are aligned and then connected and fixed by connectors.
[0020] The plastic shelving unit is assembled into a multi-layer structure using metal risers to increase overall volume. The connectors are concealed, meaning the outer side of the shelving unit is not visible.
[0021] This invention increases the structural strength of the plastic shelf body along its length by using a metal reinforcing plate, making it less prone to deformation during use. Furthermore, the first plastic tube and the plastic shelf body have an interference fit, preventing loosening and serving as a handle for easy movement of the plastic shelf body. The metal reinforcing plate is snap-fitted onto the side wall of the plastic shelf body, making installation easy and the connection secure. The fixing groove covers the edge of the metal reinforcing plate, preventing it from scratching people. The operating part facilitates operation of the L-shaped limiting part, allowing for effortless and safe insertion or removal of the L-shaped limiting part from the fixing groove. The plastic shelf body is assembled into a multi-layer structure using metal vertical tubes to increase the overall volume. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the structure of Embodiment 1.
[0023] Figure 2 This is a schematic diagram of the exploded structure of Example 1.
[0024] Figure 3 This is another exploded structural diagram of Example 1.
[0025] Figure 4 This is a cross-sectional structural diagram of Example 1.
[0026] Figure 5 This is another cross-sectional structural diagram of Embodiment 1.
[0027] Figure 6 This is a schematic diagram of the structure of Example 2.
[0028] Figure 7 This is a schematic diagram of the bottom structure of Example 2.
[0029] Figure 8 This is a schematic diagram of the exploded structure of Example 2.
[0030] Figure 9 This is a cross-sectional structural diagram of Example 2.
[0031] Figure 10This is another cross-sectional structural diagram of Example 2. Detailed Implementation
[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0033] Example 1, see Figure 1-5 As shown, a shelf unit includes a plastic shelf body 1, a first plastic tube 2, a metal upright tube 3, and a second plastic tube 4.
[0034] The plastic shelf body 1 has a cavity 10 inside. A first mounting hole 11 is provided at the top corner of the plastic shelf body 1, and a second mounting hole 12 is provided at the bottom of the plastic shelf body 1 corresponding to the first mounting hole 11. Both the first mounting hole 11 and the second mounting hole 12 have abutting protrusions 5. A clamping gap 50 is formed between the side of the abutting protrusion 5 and the inner side wall of the corresponding first mounting hole 11 or second mounting hole 12. The first plastic tube 2 is inverted U-shaped. The uppermost plastic shelf body 1 has two parallel first plastic tubes 2. Each end of the first plastic tube 2 is inserted into two adjacent first mounting holes 11. The clamping gap 50 and the end of the first plastic tube 2 are interference-fitted. The first plastic tube 2 constitutes the handle of the plastic shelf body 1. A metal reinforcing plate 6 is provided along the length of the side wall of the plastic shelf body 1.
[0035] The sidewall of the plastic shelf body 1 along its length has a recessed fixing groove 13 extending from the bottom of the outer side upwards over the top to the upper middle part of the inner side. The top of the metal reinforcing plate 6 is bent inwards with an inverted U-shaped hook 61, and the bottom of the metal reinforcing plate 6 is bent inwards with an L-shaped limiting part 62. The end of the L-shaped limiting part 62 bends downwards and extends into an operating part 63. The top of the metal reinforcing plate 6 is fastened into the fixing groove 13 at the top of the plastic shelf body 1 via the inverted U-shaped hook 61, and the bottom of the metal reinforcing plate 6 is engaged with the fixing groove 13 at the bottom of the plastic shelf body 1 via the L-shaped limiting part 62. Both ends of the metal reinforcing plate 6 abut against the sidewall of the fixing groove 13. That is, the metal reinforcing plate 6 and the sidewall of the plastic shelf body 1 are vertically connected by a snap-fit connection. Preferably, the metal reinforcing plate 6 is an aluminum alloy plate.
[0036] The metal riser tube 3 is hollow, and its top is inserted into the second mounting hole 12. The top of the metal riser tube 3 and the clamping gap 50 are interference-fitted. The second plastic tube 4 is U-shaped, and its two ends are inserted into the bottom of the corresponding metal riser tube 3. The plastic shelf body 1 is suspended through the metal riser tube 3 and the second plastic tube 4. The bottom surface of the plastic shelf body 1, the metal riser tube 3, and the second plastic tube 4 form a placement cavity 14. The placement cavity 14 can hold items, such as a microwave oven, and the shelf can be used as a microwave oven rack. The metal riser tube 3 is made of aluminum alloy.
[0037] The first mounting hole 11 and the second mounting hole 12 are each provided with two abutting protrusions 5, which are arranged in parallel. The two ends of the abutting protrusions 5 and the inner sidewall of the corresponding first mounting hole 11 or second mounting hole 12 form the clamping gap 50. The abutting protrusions 5 are provided with guide slopes 51 to guide the clamping gap 50.
[0038] Both the first mounting hole 11 and the second mounting hole 12 are rounded triangular holes, and the first plastic tube 2 is a rounded triangular hollow tube. The top of the metal riser 3 is fitted with the shape of the second mounting hole 12, and the end of the second plastic tube 4 is fitted with the shape of the hole at the bottom of the metal riser 3.
[0039] The cavity 10 is provided with a first connecting hole 15 corresponding to the first mounting hole 11, and the end of the first plastic tube 2 is provided with a second connecting hole 21. After the end of the first plastic tube 2 is inserted into the first mounting hole 11, the first connecting hole 15 and the second connecting hole 21 are aligned and connected and fixed by a connector (such as a screw or pin, not shown in the figure).
[0040] Example 2, see Figure 6-10 The difference between this embodiment and the first embodiment is that it includes two or more plastic shelf bodies 1 and does not require a second plastic tube 4.
[0041] The adjacent plastic shelf bodies 1 in the vertical direction are connected by metal risers 3. The cavity 10 has a first connecting hole 15 corresponding to the first mounting hole 11, and a third connecting hole 16 corresponding to the second mounting hole 12. The metal risers 3 have fourth connecting holes 31 at both ends. The top of the metal riser 3 is inserted into the corresponding second mounting hole 12, and the bottom of the metal riser 3 is inserted into the corresponding first mounting hole 11. After the third connecting hole 16 and the fourth connecting hole 31, and the first mounting hole 11 and the fourth connecting hole 31 are aligned, they are connected and fixed by connectors (such as screws or pins, not shown in the figure). The top of the uppermost plastic shelf body 1 is equipped with the first plastic tube 2, and the bottom of the lowermost plastic shelf body 1 directly serves as the base of the entire shelf.
[0042] The terms used in this utility model, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are only used for distinction.
[0043] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.
[0044] In this utility model, terms indicating direction or location such as front end, rear end, top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, below, etc., are used to indicate relative positions rather than absolute positions.
[0045] Terms used in this invention, such as "approximately," "overall," "approximately," and "similar," are limiting terms used to indicate features that exist but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context.
Claims
1. A shelf comprising at least one plastic shelf body having a cavity therein, characterized in that, It also includes a first plastic tube, a first mounting hole at the top corner of the plastic shelf body, and a second mounting hole at the bottom of the plastic shelf body corresponding to the first mounting hole. Both the first and second mounting holes have abutting protrusions. A clamping gap is formed between the side of the abutting protrusion and the inner sidewall of the corresponding first or second mounting hole. The first plastic tube is inverted U-shaped. The uppermost plastic shelf body has two parallel first plastic tubes. Each end of the first plastic tube is inserted into two adjacent first mounting holes. The clamping gap and the end of the first plastic tube are interference-fitted. The first plastic tube constitutes the handle of the plastic shelf body. The sidewall of the plastic shelf body in the length direction is provided with a metal reinforcing plate along the length direction.
2. The shelf of claim 1 wherein, The sidewall along the length of the plastic shelf body has a recessed fixing groove extending from the bottom of the outer side upwards over the top to the upper middle part of the inner side. The top of the metal reinforcing plate is bent inwards with an inverted U-shaped hook, and the bottom of the metal reinforcing plate is bent inwards with an L-shaped limiting part. The top of the metal reinforcing plate is fastened into the fixing groove at the top of the plastic shelf body through the inverted U-shaped hook, and the bottom of the metal reinforcing plate is engaged with the fixing groove at the bottom of the plastic shelf body through the L-shaped limiting part. Both ends of the metal reinforcing plate abut against the sidewall of the fixing groove.
3. The shelf of claim 2 wherein, The L-shaped limiting part bends downward at its end to extend into the operating part.
4. The shelf of claim 1 wherein, Two abutting protrusions are provided in both the first and second mounting holes. The two abutting protrusions are arranged in parallel. The clamping gap is formed between the two ends of the abutting protrusions and the inner sidewall of the corresponding first or second mounting hole. The abutting protrusions are provided with guide slopes to guide the clamping gap.
5. The shelf of claim 1 wherein, Both the first and second mounting holes are rounded triangular holes, and the first plastic tube is a rounded triangular hollow tube.
6. The shelf of claim 1 or 5 wherein the cavity A first connecting hole is provided corresponding to the first mounting hole, and a second connecting hole is provided at the end of the first plastic tube. After the end of the first plastic tube is inserted into the first mounting hole, the first connecting hole and the second connecting hole are aligned and connected and fixed by a connector.
7. The shelf of claim 1 wherein, It also includes a hollow metal riser and a second plastic tube. The top of the metal riser is inserted into the second mounting hole, and the top of the metal riser and the clamping gap are interference fit. The second plastic tube is U-shaped, and both ends of the second plastic tube are inserted into the bottom of the corresponding metal riser. The plastic shelf body is suspended in the air through the metal riser and the second plastic tube. The bottom surface of the plastic shelf body, the metal riser and the second plastic tube form a placement cavity.
8. The shelf of claim 1 wherein, The hollow metal riser connects adjacent plastic shelf bodies in the vertical direction. The cavity has a first connecting hole corresponding to the first mounting hole, a third connecting hole corresponding to the second mounting hole, and a fourth connecting hole at each end of the metal riser. The top of the metal riser is inserted into the corresponding second mounting hole, and the bottom of the metal riser is inserted into the corresponding first mounting hole. The third and fourth connecting holes, as well as the first and fourth mounting holes, are aligned and then connected and fixed by connectors.