Compact folding linen moving frame capable of being opened and closed synchronously

Abstract

The utility model discloses a synchronous opening and closing compact type folding linen moving frame which comprises a linen moving frame body, and the linen moving frame body comprises a vertical frame module, a bottom frame module, a locking module, a storage bag and a synchronous push rod module. The top of the storage bag is detachably connected with the synchronous push rod module; the vertical frame modules are vertically arranged on the two opposite side faces of the linen moving frame body, and the horizontally-arranged bottom frame module is detachably connected between the bottoms of the two vertical frame modules through the locking module. The two synchronous push rod modules are detachably connected between the tops, located on the same side, of the two vertical frame modules. The two vertical frame modules, the bottom frame module, the locking module, the storage bag and the synchronous push rod module are connected to form an integrated structure. According to the compact type folding linen moving frame, through the modular design, the size of the compact type folding linen moving frame is smaller after the compact type folding linen moving frame is disassembled, the structure is more compact, and the occupied space for transportation can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of linen carts, and in particular relates to a compact folding linen mobile frame which can be opened and closed synchronously. Background Art

[0002] In the field of linen trolley technology, especially in places such as enterprises, hotels, hospitals, and laundries that require large-scale linen processing, higher requirements are placed on the folding efficiency and space utilization of linen trolleys. However, traditional linen trolleys often have problems such as large footprint and cannot be folded for storage.

[0003] As in the prior art, a Chinese patent with publication number CN106347427B discloses a hotel linen cart, including a main cabinet, a storage drawer, a storage tray, a garbage collection device, a sheet collection device, two push rods, two ordinary rollers, four spherical rollers, a transmission device and a storage box. The main cabinet is located in the middle of the linen cart, the four spherical rollers are respectively located directly below the four corners of the bottom of the main cabinet, the ordinary rollers are respectively located in the middle of the spherical rollers on both sides, and the two wheels are connected by an axis, the storage drawer is arranged above the main cabinet, the storage tray is arranged above the storage drawer, the garbage collection device and the sheet collection device are respectively arranged on both sides of the main cabinet, the push rods are respectively arranged on both sides of the sheet collection device, and the transmission device is arranged at the bottom of the linen cart.

[0004] The above-mentioned prior art is easy to use, has clear regional division of labor, sufficient and reasonable storage space, and the storage space can be adjusted as needed, which can effectively improve the problems of low efficiency and low quality of hotel cleaning work; however, the structure of the prior art is relatively complex and large in size, and it often occupies a large amount of storage space when not in use, which not only increases the rental cost of the venue, but also limits the space for other equipment. Especially in places with limited space, these problems are particularly prominent.

[0005] In order to solve the problem of occupying too much storage space due to the non-foldable nature of the above-mentioned linen cart, a foldable linen cart has emerged, such as the Chinese patent with announcement number CN210000357U, which discloses a foldable linen cart, which mainly includes a folding frame A, a folding frame B, a storage bag, a bottom plate, wheels, a hook A, bolts, holes, a rotating shaft, and a hook B. The folding frame A and the folding frame B are connected to each other through a central bolt and installed on the bottom plate. The bottom plate and the folding frame A and the folding frame B are connected at one end through a rotating shaft and at the other end through a hook B. The wheels are connected below the folding frame A and the folding frame B. Hooks are provided at the top of the folding frame A and the folding frame B to cooperate with the holes of the storage bag to hang the storage bag.

[0006] Although the above-mentioned prior art solves the technical problem that traditional linen carts cannot be folded for storage, it involves many small and micro parts, which makes it difficult for downstream merchants or consumers to assemble them by themselves. At the same time, too many small and micro parts can easily cause problems such as missing, mismatching, and loss. On the other hand, the structure of the prior art also determines that its packaging and transportation volume is large, and the transportation cost is relatively high.

[0007] Therefore, the present invention aims to provide a compact folding linen mobile rack with few small parts, small transportation volume and synchronous opening and closing, so as to solve the above problems. Summary of the invention

[0008] In response to the problems in the related technology, the utility model proposes a compact folding linen mobile rack that opens and closes synchronously to overcome the above-mentioned technical problems existing in the existing related technology. The utility model designs the main body of the linen mobile rack as a modular structure, including a vertical frame module, a base frame module, a locking module, a storage bag and a synchronous push rod module, so that the utility model can realize the compact folding of the compact folding linen mobile rack in a non-working state, greatly reducing the folded volume, thereby facilitating storage and transportation.

[0009] The technical solution of the utility model is implemented as follows: a compact folding linen mobile rack with synchronous opening and closing, comprising a linen mobile rack body, wherein the linen mobile rack body comprises a stand module, a base module, a locking module, a storage bag and a synchronous push rod module;

[0010] The vertical frame modules are vertically arranged on two opposite sides of the main body of the linen mobile rack, the bottoms of the two vertical frame modules are detachably connected to the horizontally arranged bottom frame module through the locking module, and the tops of the two vertical frame modules on the same side are detachably connected to the two synchronous push rod modules, and the top of the storage bag is detachably connected to the synchronous push rod module;

[0011] The two stand modules, the base module, the locking module, the storage bag and the synchronous push rod module are connected to form an integrated structure;

[0012] External force drives the two synchronous push rod modules to move away from each other, and the synchronous push rod modules synchronously drive the vertical frame modules, the bottom frame modules and the storage bag to unfold; external force drives the two synchronous push rod modules to move toward each other, and the synchronous push rod modules synchronously drive the vertical frame modules, the bottom frame modules and the storage bag to fold.

[0013] Furthermore, each of the stand modules includes two guide rods arranged in parallel; in the same stand module, the two guide rods are connected by a cross rod.

[0014] Further, the cross bar includes two struts arranged crosswise, and the middle parts of the two struts are rotatably connected by a first rotating shaft;

[0015] In the same upright frame module, fixed rings and sliding rings are sequentially sleeved on the outer walls of the guide rods from top to bottom; the fixed ring on one guide rod is connected to the sliding ring on another guide rod through the strut, so that the upright frame module forms a stable cross structure.

[0016] Further, the chassis module includes a first chassis and a second chassis hinged to each other; two parallel hinge rods are provided on each chassis;

[0017] In the chassis module, the two hinge rods on the same side are arranged in a V shape, and the two hinge rods are rotatably connected by a second rotating shaft; on the two hinge rods on the same side, one hinge rod is provided with a bent limiting block at one end close to the second rotating shaft, and the other hinge rod is provided with a limiting groove matching the limiting block at one end close to the second rotating shaft; the length of the limiting groove is greater than the length of the limiting block; when the first chassis and the second chassis are rotated and flattened, the inner side of the limiting block abuts against the limiting groove to limit the rotation of the first chassis and the second chassis.

[0018] Further, a cross bar is provided on one side of each chassis, and a plurality of load-bearing rods are uniformly arranged on each chassis inward from the cross bar; an installation ring is provided at one end of the hinge rod far from the second rotating shaft, and the end of each cross bar passes through the installation ring on the same side and is connected to the guide rod.

[0019] Further, the end of each cross bar is provided with a first arc-shaped interface matching the outer wall of the guide rod; the locking module includes a fastener and a fixing cap, and a second arc-shaped interface matching the outer wall of the guide rod is provided on one side of the fixing cap; installation holes through which the fastener passes are provided on each fixing cap, guide rod; a hole position connected to the fastener is provided in the middle of each first arc-shaped interface.

[0020] Further, each synchronous push rod module includes a connecting rod, and both ends of the connecting rod are bent and extend downward to form connecting ends; when the upright frame module is connected to the synchronous push rod module, the connecting ends are inserted into the top of the upright frame module.

[0021] Further, the shape of the connecting rod is U-shaped, frame-shaped, or U-shaped.

[0022] Further, the diameter of the connecting end is smaller than the diameter of the connecting rod; two clamping protrusions are provided on the side surface of the connecting end to protrude outward; at the same connecting end, the two clamping protrusions are connected as a whole through an elastic sheet, and the elastic sheet is hidden in the inner cavity of the connecting end; a clamping hole corresponding to the clamping protrusion is provided on the top of the stand module; when an external force acts on the clamping protrusion, the clamping protrusion is pressed toward the inner cavity of the connecting end; when the external force is removed, the clamping protrusion rebounds and resets under the reaction force of the elastic sheet;

[0023] Furthermore, the inner diameter of the guide rod is larger than the outer diameter of the connecting end; and the clamping hole is provided on the top of the guide rod.

[0024] Furthermore, the storage bag is provided with a connection structure at the connection with the synchronous push rod module, and the connection structure includes a plurality of rings for the synchronous push rod module to pass through;

[0025] Each of the stand modules is connected with a movable pulley below;

[0026] Furthermore, the movable pulley is installed at the bottom of the guide rod.

[0027] Beneficial effects of the utility model:

[0028] (1) Compared with the prior art, the utility model reasonably disassembles the structure of the linen cart and performs a streamlined modular design, so that the packaging and transportation volume of the utility model is smaller;

[0029] (2) The modular design also enables most of the small and micro parts of the utility model to be installed by the manufacturer before leaving the factory, reducing the assembly difficulty for downstream merchants or consumers and minimizing the omission or loss of small and micro parts;

[0030] (3) Finally, after the utility model is assembled, an external force drives the two synchronous push rod modules to move away from each other, and the synchronous push rod modules simultaneously drive the vertical frame modules, the bottom frame modules and the storage bag to unfold, which is the use state of the utility model; an external force drives the two synchronous push rod modules to move toward each other, and the synchronous push rod modules simultaneously drive the vertical frame modules, the bottom frame modules and the storage bag to fold, which is the folded state of the utility model, which occupies less space and is convenient for storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a structural exploded view of a compact folding linen mobile rack that opens and closes synchronously according to the utility model;

[0032] Figure 2 It is a folding diagram of the structure of a compact folding linen mobile rack with synchronous opening and closing according to the utility model after being decomposed;

[0033] Figure 3It is a schematic diagram of the structure of a compact folding linen mobile rack that opens and closes synchronously according to the utility model after being folded;

[0034] Figure 4 It is a schematic diagram of the structure of a compact folding linen mobile rack that opens and closes synchronously after being unfolded according to the utility model;

[0035] Figure 5 for Figure 4 The enlarged view of point B;

[0036] Figure 6 for Figure 4 The enlarged view of point C;

[0037] Figure 7 It is a structural schematic diagram of the fixing cap of the utility model;

[0038] Figure 8 It is a structural schematic diagram of the chassis module of the utility model;

[0039] Fig. 9 for Figure 8 A magnified view of point A;

[0040] Fig.10 It is a structural schematic diagram of the synchronous push rod module of the utility model;

[0041] Fig.11 This is a schematic diagram of the structure of the storage bag of the utility model;

[0042] Fig.12 The utility model is a structural schematic diagram of a compact folding linen mobile rack that opens and closes synchronously.

[0043] Marking Description:

[0044] 1. Stand module; 11. Guide rod; 12. Fixed ring; 13. Sliding ring; 14. Cross rod; 141. Support rod; 15. First rotating shaft;

[0045] 2. chassis module; 21. hinge rod; 211. limit block; 212. limit groove; 213. mounting ring; 22. second rotation axis; 23. cross bar; 231. first arc interface; 24. load-bearing rod;

[0046] 3. Locking module; 31. Fastener; 32. Fixing cap; 321. Second arc-shaped interface; 4. Storage bag; 41. Ring sleeve; 5. Synchronous push rod module; 51. Connecting rod; 511. Connecting end; 5111. Boss; 5112. Elastic sheet; 6. Moving pulley. DETAILED DESCRIPTION

[0047] 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 of 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.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] like Figure 1-12 As shown, this embodiment provides a compact folding linen mobile rack that opens and closes synchronously, including a linen mobile rack main body, wherein the linen mobile rack main body includes a stand module 1, a base module 2, a locking module 3, a storage bag 4 and a synchronous push rod module 5.

[0050] The vertical frame modules 1 are vertically arranged on two opposite sides of the main body of the linen moving rack, the bottoms of the two vertical frame modules 1 are detachably connected to the horizontally arranged bottom frame module 2 through the locking module 3, and the two synchronous push rod modules 5 are detachably connected between the tops of the two vertical frame modules 1 on the same side, and the top of the storage bag 4 is detachably connected to the synchronous push rod module 5.

[0051] After the two stand modules 1, the base module 2, the locking module 3, the storage bag 4 and the synchronous push rod module 5 are connected, an integrated structure is formed.

[0052] First, compared with the prior art, the present embodiment reasonably disassembles the structure of the linen cart and performs a streamlined modular design, so that the packaging and transportation volume of the present embodiment is relatively small. Figure 2 As shown;

[0053] Secondly, the modular design also enables most of the small and micro parts of this embodiment to be installed by the manufacturer before leaving the factory, reducing the assembly difficulty of downstream merchants or consumers and minimizing the omission or loss of small and micro parts;

[0054] Finally, after the present embodiment is assembled, Fig.12As shown, an external force drives the two synchronous push rod modules 5 to move away from each other, and the synchronous push rod module 5 synchronously drives each of the stand modules 1, the base module 2 and the storage bag 4 to unfold, which is the use state of this embodiment; an external force drives the two synchronous push rod modules 5 to move toward each other, and the synchronous push rod module 5 synchronously drives each of the stand modules 1, the base module 2 and the storage bag 4 to fold, which is the folded state of this embodiment, as shown Figure 3 As shown, this takes up less space and is convenient for storage.

[0055] In this embodiment, the main body of the linen mobile rack is designed as a modular structure, including a stand module 1, a base module 2, a locking module 3, a storage bag 4 and a synchronous push rod module 5. These modules are connected in a detachable manner, so that the user can simply and quickly assemble or disassemble the entire compact folding linen mobile rack for storage according to their own needs.

[0056] At the same time, the modular design is also conducive to making the compact folding linen mobile rack smaller in size and more compact in structure after disassembly, which is conducive to reducing the space occupied by transportation and improving space utilization. Moreover, by dividing the main body of the linen mobile rack into multiple independent and functionally clear modules, this embodiment not only simplifies the manufacturing process, but also greatly enhances the flexibility and maintainability of the product. When a module is damaged or needs to be replaced, the user can replace the module alone without scrapping the entire linen mobile rack, thereby reducing maintenance costs and time costs. In addition, the modular design also makes it easy for users to customize the configuration according to actual needs, such as adjusting the number or size of the folding modules to meet the storage needs of linens of different sizes and types, further improving the adaptability and market competitiveness of the product.

[0057] This embodiment can realize the unfolding and folding of the compact folding linen mobile rack through the cooperation of the synchronous push rod module 5, the stand module 1 and the base frame module 2, so that the entire compact folding linen mobile rack can be easily folded and stored when not in use. This design greatly reduces the folding volume of the linen mobile rack, making it more compact, and convenient for efficient storage and movement in limited spaces such as hospital laundry rooms and hotel linen rooms, effectively solving the problem of traditional linen racks occupying large space and being inconvenient to carry, and significantly improving the space utilization efficiency and portability of the equipment.

[0058] like Figure 4 As shown, each of the stand modules 1 includes two parallel guide rods 11 ; in the same stand module 1 , the two guide rods 11 are connected by a cross rod 14 .

[0059] Specifically, the cross bar 14 includes two cross-arranged support rods 141, and the middle parts of the two support rods 141 are rotatably connected through a first rotation shaft 15;

[0060] In the same stand module 1, the outer wall of each guide rod 11 is covered with a fixed ring 12 and a sliding ring 13 in sequence from top to bottom; the fixed ring 12 on the guide rod 11 is connected to the sliding ring 13 on another guide rod 11 through the support rod 141, so that the stand module 1 forms a stable cross structure;

[0061] At the same time, in this embodiment, through the cooperation of the cross rod 14, the fixed ring 12 and the sliding ring 13, the two guide rods 11 in the same stand module 1 can be simply and smoothly synchronized and unfolded or retracted.

[0062] like Figure 5 , Figure 8 , Fig. 9 As shown, the chassis module 2 includes a first chassis and a second chassis hinged to each other; each chassis is provided with two parallel hinge rods 21;

[0063] In the chassis module 2, the two hinged rods 21 on the same side are arranged in a V shape, and the two hinged rods 21 are rotatably connected through a second rotating shaft 22; on the two hinged rods 21 on the same side, one of the hinged rods 21 is provided with a bent limit block 211 at one end close to the second rotating shaft 22, and the other hinged rod 21 is provided with a limit groove 212 matching the limit block 211 at one end close to the second rotating shaft 22; the length of the limit groove 212 is greater than the length of the limit block 211; when the first chassis and the second chassis are rotated and flattened, the inner side of the limit block 211 abuts against the limit groove 212 to limit the rotation of the first chassis and the second chassis;

[0064] The design of the limit block 211 and the limit groove 212 is conducive to limiting the first base frame and the second base frame from continuing to rotate after being flattened; at the same time, the limit block 211 also enhances the firmness of the connection between the first base frame and the second base frame to avoid the connection between the two from collapsing or deforming downward.

[0065] Specifically, a cross bar 23 is provided on one side of each base frame, and each base frame is evenly provided with a plurality of load-bearing rods 24 from the cross bar 23 inward; the hinge rod 21 is provided with a mounting ring 213 at the end away from the second rotating shaft 22, and the end of each cross bar 23 passes through the mounting ring 213 on the same side to be connected to the guide rod 11.

[0066] like Figure 6-8As shown, at the end of each cross bar 23, there is a first arc-shaped interface 231 that matches the outer wall of the guide rod 11; the locking module 3 includes a fastener 31 and a fixing cap 32. On one side of the fixing cap 32, there is a second arc-shaped interface 321 that matches the outer wall of the guide rod 11; on each of the fixing caps 32, the guide rod 11, there are mounting holes through which the fastener 31 passes; in the middle of each first arc-shaped interface 231, there is a hole position connected to the fastener 31.

[0067] In this embodiment, the design of the fixing cap 32, the first arc-shaped interface 231 and the second arc-shaped interface 321 makes the connection between the guide rod 11 and the cross bar 23 more firm, reduces the gap between the contact surfaces, and further prevents the connection between the two from loosening.

[0068] As Fig.10 As shown, each synchronous push rod module 5 includes a connecting rod 51. Both ends of the connecting rod 51 are bent and extend downward to form connecting ends 511; when the vertical frame module 1 is connected to the synchronous push rod module 5, the connecting ends 511 are inserted into the top of the vertical frame module 1.

[0069] Specifically, the shape of the connecting rod 51 is U-shaped, frame-shaped, or ∪-shaped.

[0070] In this embodiment, through the design of the connecting rod 51, the two vertical frame modules 1 on both sides can maintain the synchronization of actions during the unfolding or folding process, further improving the smoothness of the unfolding and folding of the compact folding linen moving rack.

[0071] Specifically, the diameter of the connecting end 511 is smaller than the diameter of the connecting rod 51; on the side surface of the connecting end 511, two convex bumps 5111 protrude outward; on the same connecting end 511, the two convex bumps 5111 are connected as a whole by an elastic sheet 5112, and the elastic sheet 5112 is hidden in the inner cavity of the connecting end 511; at the top of the vertical frame module 1, there are card holes corresponding to and engaging with the convex bumps 5111; when an external force acts on the convex bumps 5111, the convex bumps 5111 are pressed towards the inner cavity of the connecting end 511; when the external force is removed, the convex bumps 5111 rebound and reset under the reaction force of the elastic sheet 5112.

[0072] Specifically, the inner diameter of the guide rod 11 is larger than the outer diameter of the connecting end 511; at the top of the guide rod 11, there are the card holes.

[0073] In this embodiment, the design of the elastic sheet 5112 and the convex bumps 5111 enables the connecting rod 51 to be detachably connected to the guide rod 11 through a simple mechanical structure. Compared with the complex mechanical structure of traditional linen carts, the compact folding linen moving rack in this embodiment is more practical.

[0074] like Fig.11 As shown, the storage bag 4 is provided with a connection structure at the connection with the synchronous push rod module 5, and the connection structure includes a plurality of rings 41 for the synchronous push rod module 5 to pass through;

[0075] In this embodiment, the connection structure includes three ring sleeves 41 , which are connected as a whole; a gap is provided between two adjacent ring sleeves 41 , so that the connecting rod 51 with the connecting end 511 can pass through each ring sleeve 41 one by one.

[0076] like Fig.12 As shown, each of the stand modules 1 is connected with a movable pulley 6 below;

[0077] Specifically, the movable pulley 6 is installed at the bottom of the guide rod 11; the design of the movable pulley 6 makes the movement of the compact folding linen movable rack more convenient.

[0078] The axial direction of the movable pulley 6 after installation is perpendicular to the axial direction of the connecting rod 51 , so that the present embodiment in the folded state can still be pushed forward by the movable pulley 6 .

[0079] like Figure 1 , Figure 4 , Fig.12 As shown, the assembly process of the compact folding linen mobile rack with synchronous opening and closing described in this embodiment is as follows:

[0080] During assembly, first pass each connecting rod 51 through the corresponding ring sleeve 41 to complete the connection between the connecting rod 51 and the storage bag 4; then use the fastener 31 and the fixing cap 32 to fasten each guide rod 11 and the cross bar 23 to complete the connection between the stand module 1 and the base module 2; then insert the connecting end 511 of the connecting rod 51 into the top of the guide rod 11, and the protrusion 5111 and the hole are engaged to complete the assembly.

[0081] The use process of the compact folding linen mobile rack with synchronous opening and closing described in this embodiment after assembly is as follows:

[0082] External force drives the two synchronous push rod modules 5 to move away from each other, and the synchronous push rod module 5 synchronously drives each of the vertical frame modules 1, the bottom frame module 2 and the storage bag 4 to unfold; external force drives the two synchronous push rod modules 5 to move toward each other, and the synchronous push rod module 5 synchronously drives each of the vertical frame modules 1, the bottom frame module 2 and the storage bag 4 to fold, thereby completing the folding of the compact folding linen mobile rack.

[0083] According to the disclosure and teaching of the above description, the technical personnel in the field to which the utility model belongs can also change and modify the above implementation. Therefore, the utility model is not limited to the specific implementation methods disclosed and described above, and some modifications and changes to the utility model should also fall within the scope of protection of the claims of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the utility model.

Claims

1. A compact folding linen mobile rack that opens and closes synchronously, comprising a linen mobile rack body, characterized in that: The main body of the linen mobile rack includes a stand module, a base module, a locking module, a storage bag and a synchronous push rod module; The vertical frame modules are vertically arranged on two opposite sides of the main body of the linen mobile rack, the bottoms of the two vertical frame modules are detachably connected to the horizontally arranged bottom frame module through the locking module, and the tops of the two vertical frame modules on the same side are detachably connected to the two synchronous push rod modules, and the top of the storage bag is detachably connected to the synchronous push rod module; The two stand modules, the base module, the locking module, the storage bag and the synchronous push rod module are connected to form an integrated structure; External force drives the two synchronous push rod modules to move away from each other, and the synchronous push rod modules synchronously drive the vertical frame modules, the bottom frame modules and the storage bag to unfold; external force drives the two synchronous push rod modules to move toward each other, and the synchronous push rod modules synchronously drive the vertical frame modules, the bottom frame modules and the storage bag to fold.

2. A compact folding linen mobile rack with synchronous opening and closing according to claim 1, characterized in that: Each of the stand modules comprises two guide rods arranged in parallel; in the same stand module, the two guide rods are connected by a cross rod.

3. The compact folding linen mobile rack with synchronous opening and closing according to claim 2, characterized in that: The cross rod comprises two cross-arranged support rods, and the middle parts of the two support rods are rotatably connected through a first rotation axis; In the same stand module, the outer wall of each guide rod is sequentially sleeved with a fixed ring and a sliding ring from top to bottom; the fixed ring on the guide rod is connected to the sliding ring on another guide rod through the support rod.

4. The compact folding linen mobile rack with synchronous opening and closing according to claim 2, characterized in that: The chassis module comprises a first chassis and a second chassis which are hinged to each other; each chassis is provided with two parallel hinge rods; In the base frame module, the two hinged rods on the same side are arranged in a V shape, and the two hinged rods are rotatably connected through a second rotating shaft; on the two hinged rods on the same side, one of the hinged rods is provided with a bent limit block at one end close to the second rotating shaft, and the other hinged rod is provided with a limit groove matching the limit block at one end close to the second rotating shaft; the length of the limit groove is greater than the length of the limit block; when the first base frame and the second base frame are rotated and flattened, the inner side of the limit block abuts against the limit groove to limit the rotation of the first base frame and the second base frame.

5. The compact folding linen mobile rack with synchronous opening and closing according to claim 4, characterized in that: A cross bar is provided on one side of each base frame, and each base frame is evenly provided with a plurality of load-bearing rods from the cross bar inward; a mounting ring is provided at one end of the hinged rod away from the second rotating axis, and the end of each cross bar passes through the mounting ring on the same side to be connected with the guide rod.

6. The compact folding linen mobile rack with synchronous opening and closing according to claim 5, characterized in that: The end of each cross bar is provided with a first arc-shaped interface matching the outer wall of the guide rod; the locking module includes a fastener and a fixing cap, and one side of the fixing cap is provided with a second arc-shaped interface matching the outer wall of the guide rod; each of the fixing caps and guide rods is provided with a mounting hole through which the fastener passes; the middle part of each of the first arc-shaped interfaces is provided with a hole position connected to the fastener.

7. The compact folding linen mobile rack with synchronous opening and closing according to claim 1, characterized in that: Each of the synchronous push rod modules includes a connecting rod, both ends of which are bent and extended downward to form a connecting end; when the stand module is connected to the synchronous push rod module, the connecting end is inserted into the top of the stand module.

8. The compact folding linen mobile rack with synchronous opening and closing according to claim 7, characterized in that: The connecting rod is in a U-shape, a frame shape, or a C-shape.

9. The compact folding linen mobile rack with synchronous opening and closing according to claim 7, characterized in that: The diameter of the connecting end is smaller than the diameter of the connecting rod; two latching protrusions are provided on the side surface of the connecting end so as to protrude outward; at the same connecting end, the two latching protrusions are connected as a whole by an elastic sheet, and the elastic sheet is hidden in the inner cavity of the connecting end; a latching hole corresponding to the latching protrusion is provided on the top of the stand module; when an external force acts on the latching protrusion, the latching protrusion is pressed toward the inner cavity of the connecting end; when the external force is removed, the latching protrusion rebounds and resets under the reaction force of the elastic sheet.

10. The compact folding linen mobile rack with synchronous opening and closing according to claim 1, characterized in that: The storage bag is provided with a connection structure at the connection with the synchronous push rod module, and the connection structure includes a plurality of rings for the synchronous push rod module to pass through; and a movable pulley is connected below each of the stand modules.

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