A tension balance rack that is easy to fold

Abstract

The present invention relates to the technical field of storage racks, and more specifically to a tension-balanced storage rack that is easy to fold, comprising a rigid first storage unit and a second storage unit, wherein the first storage unit and the second storage unit are connected by ropes to form a tension-balanced structure; the first storage unit and / or the second storage unit are provided with a rigid telescopic member, so that a telescopic structure is formed between the first upper storage portion and the first lower storage portion and / or a telescopic structure is formed between the second upper storage portion and the second lower end, thereby realizing the folding and storage of the storage rack. The present invention changes the traditional storage rack formed entirely by rigid structural members into a tension-balanced storage rack composed of rigid structural members and flexible ropes, thereby reducing the number of rigid structural members to reduce the weight of the storage rack and improving the convenience of transportation; when the telescopic member is contracted, the rope no longer remains straightened, and the first storage unit and the second storage unit are contracted separately to fold the storage rack, further improving the convenience of storage and transportation.

Description

Technical Field

[0001] The present invention relates to the technical field of storage racks, and in particular to a tension-balanced storage rack that is easy to fold. Background Art

[0002] Existing storage racks are mostly made of wrought iron, especially those with high load-bearing requirements, such as household floor-standing racks and storage racks. These racks are large and heavy, making them difficult to carry and store. Some foldable racks currently available on the market can improve the convenience of storage and transportation, but because they are essentially made up of rigid structural components, they are still quite large when folded. Chinese document CN114145590A proposes a folding chair that uses a seat and three-bar tensioning components to form a tensioned equilibrium structure. A locking mechanism is provided on the cables to release the tension constraints on the rigid bars, thereby achieving the purpose of a foldable seat. This technical solution provides certain technical insights for folding racks, but folding requires removing each rigid bar from the seat and operating the locking mechanism, making assembly and disassembly of the seat cumbersome. Furthermore, after folding, the rigid bars need to be stored separately, making them easily lost during transportation. Since racks are typically no smaller than the seat, and some are even significantly larger, this solution is not suitable for racks. Summary of the Invention

[0003] The object of the present invention is to provide a tension-balanced storage rack that is easy to fold, so as to solve the problem that the existing storage racks are difficult to fold and store.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a tension-balanced storage rack that is easy to store, including a first storage unit and a second storage unit, the first storage unit and the second storage unit are both rigid structures, the first storage unit extends in the up-down direction to form a first upper storage part and a first lower storage part, the second storage unit extends in the up-down direction to form a second upper storage part and a second lower storage part, the first upper storage part, the second upper storage part, the first lower storage part, and the second lower storage part are arranged in sequence from top to bottom, the first upper storage part located at the top and the second lower storage part located at the bottom are connected by a rope, and the second upper storage part and the first lower storage part located in the middle are connected by a rope, so that the storage rack forms a tension-balanced structure; the first storage unit and / or the second storage unit are provided with a rigid telescopic member, so that a telescopic structure is formed between the first upper storage part and the first lower storage part and / or a telescopic structure is formed between the second upper storage part and the second lower end, thereby realizing folding and storage of the storage rack.

[0005] Furthermore, one or more of the first upper storage part, the first lower storage part, the second upper storage part, and the second lower storage part is provided with a storage platform.

[0006] The storage table can be used to place more items, and there are fewer restrictions on the types and sizes of the items placed, which makes the storage rack have a wider range of uses.

[0007] Furthermore, the telescopic member includes a first telescopic member arranged in the first storage unit and a second telescopic member arranged in the second storage unit, one end of the first telescopic member is connected to the first upper storage part, and the other end is connected to the first lower storage part; one end of the second telescopic member is connected to the second upper storage part, and the other end is connected to the second lower storage part.

[0008] The first storage unit and the second storage unit both form a retractable structure. When folded, the first storage unit and the second storage unit both shrink to lower the height of the shelf. The first storage unit and the second storage unit are arranged in an alternating manner. Therefore, when the first storage unit and the second storage unit are folded and contracted at the same time, the storage units can be staggered and stacked, which is more stable during transportation.

[0009] Furthermore, one end of the first telescopic member is detachably connected to the first upper storage part, and the other end is detachably connected to the first lower storage part; one end of the second telescopic member is detachably connected to the second upper storage part, and the other end is detachably connected to the second lower storage part.

[0010] The detachable connection enables both the first telescopic member and the second telescopic member to be removed from the storage rack. When folded, the telescopic member and the storage parts are stored separately. Therefore, the folding height of the storage rack is not limited by the telescopic member, and storage is more flexible.

[0011] Furthermore, at least one of the first upper storage part, the second upper storage part, the first lower storage part, and the second lower storage part is provided with a receiving cavity for accommodating other storage parts, so that when the storage rack is folded, nesting between at least two storage parts is achieved.

[0012] The nesting arrangement between the storage parts can further reduce the height of the folded storage rack.

[0013] Furthermore, when the storage rack is folded, the second upper storage portion is nested in the first upper storage portion, the first lower storage portion is nested in the second lower storage portion, and the first upper storage portion is stacked on the top surface of the second lower storage portion.

[0014] When folded, the first lower storage part of the first storage unit is embedded in the second storage unit, and the second upper storage part of the second storage unit is embedded in the first storage unit, thereby reducing the height when folded. This design can also reduce the area of ​​the first lower storage part and the second upper storage part relatively located in the middle layer, so as to maintain the stability of the storage rack.

[0015] Furthermore, the telescopic member includes multiple sections of hollow tubes, adjacent hollow tubes are sleeved in sequence, and the inner diameter of one section of the adjacent hollow tubes is equal to the outer diameter of another section of the hollow tubes.

[0016] The more sections the hollow tube has, the shorter the length of a single section of the hollow tube will be, which helps to reduce the height of the storage rack after it is folded.

[0017] Furthermore, the telescopic member further includes a locking member, and when the telescopic member is extended, the locking member is used to maintain the distance between two adjacent hollow tubes.

[0018] Furthermore, the first upper storage part, the first lower storage part, the second upper storage part, and the second lower storage part are all triangular structures, and the ropes are connected to the three vertices of the triangle.

[0019] Furthermore, the first lower storage portion is located on the inner side of the first upper storage portion relative to the first upper storage portion, and the second upper storage portion is located on the inner side of the second lower storage portion relative to the second lower storage portion.

[0020] The beneficial effects of the present invention are:

[0021] 1. The present invention provides a rigid telescopic member in the first storage unit and the second storage unit. When the telescopic member is extended, a rigid supporting force is provided inside the first storage unit and the second storage unit. The length of the telescopic member when extended is just enough to straighten the rope, so that the storage rack forms a tension balance structure. The traditional storage rack formed entirely by rigid structural members is transformed into a tension balance storage rack composed of rigid structural members and flexible ropes, thereby reducing the number of rigid structural members to reduce the weight of the storage rack and improving the convenience of transportation. When the telescopic member is retracted, the rope no longer remains in a straightened state, and the first storage unit and the second storage unit are retracted and lowered in height respectively, thereby achieving the purpose of folding and storing the storage rack. During the folding process, it is only necessary to operate the first and second telescopic members to retract, and there is no need to remove the rigid first and second telescopic members from the storage platform. The folding operation is convenient, further improving the convenience of storage and transportation.

[0022] 2. The telescopic member is made of multiple hollow tubes, and the inner diameter of one of the two adjacent hollow tubes is equal to the outer diameter of the other hollow tube. When storing, the hollow tube can be pushed into the adjacent hollow tube, so that when the telescopic member is retracted to the shortest, it only occupies the space of one section of the hollow tube, reducing the storage volume.

[0023] 3. When the connection between the telescopic part and each storage part is set to be detachable, the telescopic part can be removed and stored separately when the shelf is folded, which makes storage more flexible. Combined with the stacking or even nesting storage of the storage parts, the storage volume can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the first storage unit of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the second storage unit of the present invention.

[0027] Figure 4 It is a structural diagram of another embodiment of the present invention.

[0028] Wherein: 1 first storage unit, 11 first upper storage part, 12 first lower storage part, 13 first telescopic member, 2 second storage unit, 21 second upper storage part, 22 second lower storage part, 23 second telescopic member. DETAILED DESCRIPTION

[0029] To further illustrate various embodiments, the present invention is provided with accompanying drawings. These drawings form part of the present disclosure and are primarily used to illustrate the embodiments and, in conjunction with the relevant description in the specification, to explain the operating principles of the embodiments. By referring to these drawings, one of ordinary skill in the art will understand other possible embodiments and the advantages of the present invention. The components in the figures are not drawn to scale, and similar reference numerals are generally used to represent similar components.

[0030] See Figure 1-3 As shown, the present invention discloses a tension-balanced storage rack for easy storage, comprising a first storage unit 1 and a second storage unit 2. The first storage unit 1 and the second storage unit 2 are both rigid structures. The first storage unit 1 extends in the vertical direction to form a first upper storage portion 11 and a first lower storage portion 12. The second storage unit 2 extends in the vertical direction to form a second upper storage portion 21 and a second lower storage portion 22. The first upper storage portion 11, the second upper storage portion 21, the first lower storage portion 12, and the second lower storage portion 22 are arranged in a sequential order from top to bottom. The uppermost first storage portion 11 and the lowermost second storage portion 22 are connected by a rope, and the middle second storage portion 21 and the first lower storage portion 22 are connected by a rope, thereby forming a tension-balanced storage rack. The tension-balanced storage rack replaces a conventional storage rack formed entirely of rigid structural components with a tension-balanced storage rack composed of rigid structural components and flexible ropes, thereby reducing the number of rigid structural components, reducing the weight of the storage rack, and improving the convenience of transportation.

[0031] See Figure 1-3As shown, the first storage unit 1 and the second storage unit 2 are provided with rigid telescopic members, thereby forming a telescopic structure between the first upper storage portion 11 and the first lower storage portion 12 of the first storage unit 1, and forming a telescopic structure between the second upper storage portion 21 and the second lower storage portion 22 of the second storage unit 2, thereby realizing the folding and storage of the storage rack. Specifically, the telescopic members include a first telescopic member 13 provided in the first storage unit 1 and a second telescopic member 23 provided in the second storage unit 2, wherein one end of the first telescopic member 13 is connected to the first upper storage portion 11 and the other end is connected to the first lower storage portion 12; one end of the second telescopic member 23 is connected to the second upper storage portion 21 and the other end is connected to the second lower storage portion 22. The first storage unit 1 and the second storage unit 2 both form telescopic structures. When folded, the first storage unit 1 and the second storage unit 2 both contract to lower the height of the storage rack. The first storage unit 1 and the second storage unit 2 are arranged in an interlaced manner. Therefore, when the first storage unit 1 and the second storage unit 2 are contracted and folded at the same time, the storage portions can be stacked in an interlaced manner, which is more stable during transportation. When folding, the first telescopic member 13 of the first storage unit 1 is retracted to move the first upper storage part 11 and the first lower storage part 12 toward each other, and the second telescopic member 23 of the second storage unit 2 is retracted to move the second upper storage part 21 and the second lower storage part 22 toward each other, thereby forming an interlaced stacking of the storage parts, and the ropes naturally relax and droop. The folding operation is simple and fast, and the volume and weight of the folded unit are small, making it easy to store and carry.

[0032] In other embodiments, it is also feasible to configure only one of the first storage unit 1 and the second storage unit 2 as a retractable structure. Compared with the first storage unit 1 and the second storage unit 2 being fixed structures that are not retractable, configuring only one of them as a retractable structure can also function as a foldable shelf and reduce the height of the shelf.

[0033] In addition, the first telescopic member 13 and the second telescopic member 23 can also be detachably connected to each storage portion. Specifically, one end of the first telescopic member 13 is detachably connected to the first upper storage portion 11, and the other end is detachably connected to the first lower storage portion 12; one end of the second telescopic member 23 is detachably connected to the second upper storage portion 21, and the other end is detachably connected to the second lower storage portion 22. When the rack needs to be folded for storage or transport, the first telescopic member 13 and the second telescopic member 23 can be removed and stored separately. At this time, the storage portions can be stacked or even nested, which makes storage more flexible and can also reduce the volume after folding (in the solution where the telescopic member and the storage portions are non-detachably connected, the storage portions can also be nested for storage). After the first telescopic member 13 and the second telescopic member 23 are retracted, they can be stored separately or embedded in a suitable position in the storage portion. If there is enough space in the storage portion, a corresponding cavity can also be opened for storing the first telescopic member 13 and the second telescopic member 23.

[0034] See Figure 1-3As shown, in this example, the first telescopic member 13 and the second telescopic member 23 are both connected by multiple sections of hollow tubes. Among the two adjacent hollow tubes, the outer diameter of one hollow tube is equal to the inner diameter of the other hollow tube, and in the axial direction of the telescopic member, the diameters of adjacent hollow tubes are reduced one by one. Therefore, after contraction, all hollow tubes can be received in the hollow tube with the largest diameter. The more sections of the hollow tubes, the shorter the length of the telescopic member after contraction, which is more advantageous for storage.

[0035] However, after the telescopic member is extended, the hollow tube is prone to undesirable contraction when subjected to pressure from the various storage sections. To avoid this, a locking member is provided between adjacent hollow tubes to maintain the distance between them. The locking member can be an elastic rod disposed in the hollow tube with a smaller diameter. The elastic rod can move radially along the hollow tube, and its elastic force is directed radially along the hollow tube. The sidewall of the larger diameter hollow tube that matches the smaller diameter hollow tube has a corresponding through-hole for accommodating the elastic rod. When the elastic rod passes through the through-hole under the action of the elastic force, the distance between the two adjacent hollow tubes is locked. When the elastic rod contracts inward to the sidewall of the hollow tube, the elastic rod disengages the through-hole, allowing the two adjacent hollow tubes to move relative to each other. This locking method has a strong locking force, and unlocking requires the operator to press the elastic rod inward. It is suitable for storage racks with larger dimensions or heavier items. Alternatively, the locking member can be a protrusion on the sidewall of one hollow tube and a groove on the other hollow tube. The sides of the protrusion and groove are smooth. When the protrusion fits into the groove, the two adjacent hollow tubes are locked. When the telescopic member is subjected to a force that causes it to contract (the force is directed along the axial direction or tangential direction of the hollow tube), the two adjacent hollow tubes can move relative to each other, causing the protrusion and groove to shift and release the engagement. This locking method has a low locking force but a simple structure, and is suitable for racks of various sizes and for items of relatively small weight.

[0036] In other embodiments, the first telescopic member 13 and the second telescopic member 23 may also be formed by connecting multiple sections of hinged rods. When the storage rack is folded, the first telescopic member 13 and the second telescopic member 23 are shortened by folding at the hinge. This structure is suitable for situations where the telescopic member and each storage portion are detachably connected. To improve the convenience of the folding operation, the connection between the telescopic member and each storage portion can be a quick-release structure, such as a magnetic connection or a side-plug connection (providing a mounting slot with an opening facing the side in the storage portion, and the telescopic member is installed in the mounting slot from the side).

[0037] The first upper storage part 11, the first lower storage part 12, the second upper storage part 21, and the second lower storage part 22 can be storage platforms, storage rods, or a combination of storage platforms and storage rods, and the top surface of each storage part can be a plane or can be provided with a rib on the side, which can prevent items placed on the plane from falling. Since the second lower storage part 22 is set at the bottom end of the storage rack, it is generally placed on the ground or a table top, so the second lower storage part 22 is preferably a flat plate or a platform composed of multiple rods, thereby forming a storage table in the second lower storage part 22. The shapes of other storage parts are determined according to specific storage needs. See Figure 1-3 As shown, in this example, each storage portion is a flat storage table, which can be used to place more items, and has fewer restrictions on the types and sizes of the items placed, making the storage rack more widely used.

[0038] In addition, when the storage portion is provided with a storage rod, the way of placing items is not limited to placing them on the top surface of the storage rod, but can also be hung on the storage rod, such as hanging a clothes hanger.

[0039] The height and shape of each storage section will affect the size of the rack after folding. Changing the storage arrangement between the storage sections can reduce the height of the rack after folding, while keeping the height of the storage sections constant. To this end, at least one of the first upper storage section 11, the second upper storage section 21, the first lower storage section 12, and the second lower storage section 22 is provided with a receiving cavity for accommodating the other storage sections. This allows at least two storage sections to nest when the rack is folded, further reducing the height of the rack after folding. Figure 4As shown, in this example, each storage part is a triangular structure, and the first upper storage part 11 and the second lower storage part 22 are formed by two triangles connected together. The two triangles of the same storage part are connected by a rope, and there is a certain gap between the two triangles, which can be used to place another adjacent storage part. For example, the second upper storage part 21 is placed between the two triangles of the first upper storage part 11, and the first lower storage part 12 is placed between the two triangles of the second lower storage part 22. Therefore, when the storage rack is folded, the second upper storage part 21 is nested in the first upper storage part 11, the first lower storage part 12 is nested in the second lower storage part 22, and the first upper storage part 11 is stacked on the top surface of the second lower storage part 22. The design of the storage part relatively located in the middle layer being nested in the storage parts relatively located above and below can not only reduce the height of the storage rack when folded, but also reduce the area of ​​the first lower storage part 12 and the second upper storage part 21 relatively located in the middle layer, so as to maintain the stability of the storage rack. To smoothly achieve the above-mentioned nesting, the rope between the two triangles of the first upper storage section 11 is connected to the upper surface of the triangle, and the rope between the two triangles of the second lower storage section 22 is connected to the lower surface of the triangle. The rope between the first upper storage section 11 and the second lower storage section 22 is connected to the vertex of the outer triangle. When the rope between the second upper storage section 21 and the first lower storage section 12 is tightened, the geometric center formed by each rope should pass through the center of gravity formed by the second upper storage section 21 and the first lower storage section 12. Therefore, it can be seen that the rope between the second upper storage section 21 and the first lower storage section 12 can be connected to the vertices of the triangle respectively, or one end can be connected to the center of gravity of the second upper storage section 21 and the other end to the center of gravity of the first lower storage section 12. When one end of the rope is connected to the center of gravity of the second upper storage section 21 and the other end is connected to the center of gravity of the first lower storage section 12, the rope is located in the middle of the second upper storage section 21 and the first lower storage section 12, which has less impact on taking and placing items. When the ropes are connected to the vertices of the triangle, at least three ropes are provided between the second upper storage portion 21 and the first lower storage portion 12. Figure 1 The corresponding vertices above and below are connected one by one, or as shown in Figure 4 As shown, the upper, lower, left and right adjacent vertices are cross-connected (the thick solid lines represent ropes), thereby setting six ropes. Although the ropes set at the vertices of the triangle will make it inconvenient to take and put items to a certain extent, the second upper storage part 21 and the first lower storage part 12 can be more stable.

[0040] In other embodiments, the structure of each storage portion is not limited to a triangle, and can be set to other polygons or arcs according to the needs of storage.

[0041] See Figure 1 or Figure 4As shown, in this example, the first lower storage section 12 is located on the inner side of the first upper storage section 11 relative to the first upper storage section 11, and the second upper storage section 21 is located on the inner side of the second lower storage section 22 relative to the second lower storage section 22. Thus, the first upper storage section 11, the second lower storage section 22, and the rope connecting them form a relatively neat rack. The ropes form an inner and outer layer structure that does not interfere with each other, which is convenient for use and storage and more aesthetically pleasing. In other embodiments, it is also feasible to gradually reduce the size of the second lower storage section 22, the first lower storage section 12, the second upper storage section 21, and the first upper storage section 11. This can improve the stability of the rack and allow the relatively upper storage section to be stacked on the relatively lower storage section. If there is a cavity of sufficient size, they can also be nested in sequence, further reducing the folded volume.

[0042] In the storage rack disclosed in the present invention, when the telescopic member is retracted, the rope no longer remains straightened, and the first storage unit 1 and the second storage unit 2 are respectively retracted and lowered in height, thereby achieving the purpose of folding and storing the storage rack. If the first telescopic member 13 and the second telescopic member 23 are non-detachably connected to the corresponding storage parts, during the folding process, it is only necessary to operate the first telescopic member 13 and the second telescopic member 23 to retract, without having to remove the rigid first telescopic member 13 and the second telescopic member 23 from the storage platform. The folding operation is convenient, and the convenience of storage and transportation is improved. If the first telescopic member 13 and the second telescopic member 23 are detachably connected to the corresponding storage parts, the storage parts and the telescopic members can be stored separately during folding, reducing the storage volume and further improving the convenience of storage and transportation.

[0043] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that the remaining undescribed portions are prior art, and that various changes in form and details made to the present invention without departing from the spirit and scope of the present invention as defined by the appended claims fall within the scope of protection of the present invention.

Claims

1. A tension balance rack that is easy to store, characterized in that: The first storage unit and the second storage unit are both rigid structures. The first storage unit extends in the up-down direction to form a first upper storage part and a first lower storage part. The second storage unit extends in the up-down direction to form a second upper storage part and a second lower storage part. The first upper storage part, the second upper storage part, the first lower storage part and the second lower storage part are arranged in sequence from top to bottom. The first upper storage part at the top and the second lower storage part at the bottom are connected by a rope, and the second upper storage part and the first lower storage part in the middle are connected by a rope, so that the storage rack forms a tension balance structure; the first storage unit and / or the second storage unit are provided with a rigid telescopic member to form a telescopic structure and / or a telescopic member between the first upper storage part and the first lower storage part Or a retractable structure is formed between the second upper storage part and the second lower end, so as to realize the folding and storage of the storage rack; one or more of the first upper storage part, the first lower storage part, the second upper storage part and the second lower storage part is provided with a storage platform; the retractable part includes a first retractable part arranged in the first storage unit and a second retractable part arranged in the second storage unit, one end of the first retractable part is connected to the first upper storage part, and the other end is connected to the first lower storage part; one end of the second retractable part is connected to the second upper storage part, and the other end is connected to the second lower storage part; one end of the first retractable part is detachably connected to the first upper storage part, and the other end is detachably connected to the first lower storage part; one end of the second retractable part is detachably connected to the second upper storage part, and the other end is detachably connected to the second lower storage part.

2. A tension balance rack for easy storage according to claim 1, characterized in that: At least one of the first upper storage part, the second upper storage part, the first lower storage part, and the second lower storage part is provided with an accommodating cavity for accommodating other storage parts, so that when the storage rack is folded, nesting between at least two storage parts is achieved.

3. The tension balance rack for easy storage according to claim 2, characterized in that: When the storage rack is folded, the second upper storage portion is nested in the first upper storage portion, the first lower storage portion is nested in the second lower storage portion, and the first upper storage portion is stacked on the top surface of the second lower storage portion.

4. The tension balance rack for easy storage according to claim 1, characterized in that: The telescopic member comprises a plurality of hollow tubes, adjacent hollow tubes are sleeved in sequence, and the inner diameter of one of the adjacent hollow tubes is equal to the outer diameter of another hollow tube.

5. The tension balance rack for easy storage according to claim 4, characterized in that: The telescopic member further comprises a locking member, and when the telescopic member is extended, the locking member is used to maintain the distance between two adjacent hollow tubes.

6. The tension balance rack for easy storage according to claim 1, characterized in that: The first upper storage part, the first lower storage part, the second upper storage part, and the second lower storage part all have triangular structures, and ropes are connected to the three vertices of the triangle.

7. The tension balance rack for easy storage according to claim 1, characterized in that: The first lower storage portion is located on the inner side of the first upper storage portion relative to the first upper storage portion, and the second upper storage portion is located on the inner side of the second lower storage portion relative to the second lower storage portion.

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