Foldable storage decoration material carrying trolley

Abstract

This application belongs to the field of transportation equipment technology and discloses a foldable and storable trolley for transporting decoration materials, including a left frame and a right frame. A scissor-type telescopic component is fixed to the bottom of the left frame, and the right frame is fixed to the end of the scissor-type telescopic component away from the left frame. Edge vertical plates are welded to the top surfaces of both the left and right frames, and U-shaped handles are welded to the upper sides of the edge vertical plates. This application connects the left frame to the right frame via the scissor-type telescopic component at the bottom of the left frame. Combined with the telescopic rod at the bottom of the left frame and the vertical block and plum blossom knob at the bottom of the right frame, the frame can be easily folded and unfolded. In the folded state, the overall volume of the trolley is significantly reduced, greatly saving storage space, especially suitable for space-constrained situations in decoration scenarios. It facilitates storage when not in use, reducing the occupation of the work area. At the same time, the folding operation is simple and convenient, requiring no complicated tools, and can be quickly completed by a single person, improving the trolley's flexibility.

Description

Technical Field

[0001] This application relates to the field of transportation equipment technology, and more specifically, to a foldable and retractable trolley for transporting building materials. Background Technology

[0002] During the renovation and construction process, the handling of building materials is a frequent and important task, leading to the development of various handling tools. However, the commonly available building material handling carts on the market currently have many limitations.

[0003] In terms of storage, traditional moving carts are mostly fixed structures that cannot be folded, resulting in them taking up a significant amount of space when not in use. Since construction sites are typically limited in space, especially during peak construction periods when tools and materials accumulate, the storage problem of fixed carts becomes even more pronounced. This not only affects the cleanliness of the construction site but can also hinder the construction process. Regarding protective barriers, most existing carts have fixed, non-removable protective structures. When transporting large construction materials, fixed barriers restrict loading space, preventing large materials from being easily placed on the cart and requiring the use of other tools or manual handling, increasing the difficulty and labor intensity. Conversely, when transporting small or easily scattered materials, if the height or structure of the protective barriers is inappropriate, materials can easily fall, causing damage or safety hazards. Furthermore, fixed protective barriers also increase the space occupied by the cart when storing it, further exacerbating the storage problem.

[0004] To address the aforementioned issues, this application provides a foldable and trolley for transporting and storing renovation materials. Utility Model Content

[0005] The foldable and storable decoration material transport trolley provided in this application adopts the following technical solution: A foldable and storable trolley for transporting building materials includes a left frame and a right frame. A scissor-type telescopic assembly is fixed to the bottom of the left frame, and the right frame is fixed to the end of the scissor-type telescopic assembly furthest from the left frame. Edge vertical plates are welded to the top surfaces of both the left and right frames, and U-shaped handrails are welded to the upper sides of the edge vertical plates. Two guardrails are welded to the lower surface of the edge vertical plates, and threaded posts are welded to the top of each guardrail. The two guardrails are welded to the top surfaces of the left and right frames. A telescopic rod is hinged to the bottom of the left frame, with one end extending to the bottom of the right frame and having a socket at one end. A vertical block is welded to the bottom surface of the right frame, and a swivel knob is threaded onto the surface of the vertical block. One end of the swivel knob is inserted into the socket of the telescopic rod. Casters are installed at the corners of the bottom surfaces of both the left and right frames.

[0006] The above technical solution meets the folding and storage requirements of the trolley (left and right frames), reducing its space occupation when not in use.

[0007] Furthermore, two connecting crossbars are provided between the left and right vehicle frames, and each connecting crossbar has connecting lugs welded to both ends to engage with threaded posts. Nuts that abut against the connecting lugs are threaded onto the surface of the threaded posts. L-shaped support frames are welded to the bottom surfaces of the two connecting crossbars, and the two L-shaped support frames are in contact with each other. Support blocks are welded to the sides of the two L-shaped support frames, and the support blocks are in contact with the edge of the top surface of the left or right vehicle frame.

[0008] The above technical solution forms a filling structure between the left and right frames, which meets the needs of transporting decoration materials and increases the overall stability.

[0009] Furthermore, the scissor telescopic assembly consists of two support members with slide rails and a scissor connecting rod installed between the two support members, and the end of the scissor connecting rod is slidably connected to the slide rail of the support member through a sliding member.

[0010] The above technical solution satisfies the horizontal extension and retraction requirements of the left and right frames.

[0011] Furthermore, the fence panel, threaded post, connecting crossbar, connecting lug, and L-shaped support frame constitute a detachable protective fence structure.

[0012] The above technical solution provides a protective and support structure for the interior decoration materials inside the vehicle frame.

[0013] Furthermore, two telescopic rods are arranged parallel to each other at the bottom of the left frame, and two sets of vertical blocks and a plum blossom knob are arranged at the bottom of the right frame corresponding to the telescopic rods.

[0014] The above technical solution connects the left and right frames by extending and retracting the telescopic rod, which increases the reliability of the connection between the left and right frames while satisfying the folding and storage requirements.

[0015] Furthermore, two support blocks are welded to both the left and right sides of the L-shaped support frame, and the installation height of the L-shaped support frame is greater than the installation height of the scissor-type telescopic component.

[0016] The above technical solution increases the reliability of the connection between the L-shaped load-bearing frame and the left and right vehicle frames.

[0017] In summary, this application includes the following beneficial technical effects: The left frame connects to the right frame via a scissor-type telescopic component at the bottom. Combined with the telescopic rod at the bottom of the left frame and the vertical block and swivel knob at the bottom of the right frame, the frame can be easily folded and unfolded. In the folded state, the overall size of the cart is significantly reduced, greatly saving storage space. This is especially suitable for space-constrained situations during renovations, allowing for convenient storage when not in use and minimizing the impact on work areas. Furthermore, the folding operation is simple and convenient, requiring no complicated tools and can be quickly completed by a single person, enhancing the cart's flexibility.

[0018] The detachable protective fence structure, consisting of guardrail panels, threaded posts, connecting crossbars, connecting lugs, and an L-shaped support frame, provides the trolley with versatility for various usage scenarios. When transporting large building materials, the protective fence can be removed by disassembling the connecting crossbars and L-shaped support frame, expanding the loading space. Conversely, when transporting small or easily scattered materials, installing the protective fence effectively prevents materials from falling, ensuring transportation safety. This detachable design allows the trolley to meet the transportation needs of materials of different sizes while further reducing space occupation when folded for storage, enhancing the trolley's practicality and versatility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 Top views of the left and right vehicle frames of this application; Figure 3 The following are bottom views of the left and right vehicle frames of this application; Figure 4 This is a three-dimensional view of the connecting crossbar and L-shaped load-bearing frame of this application.

[0020] Explanation of the labels in the diagram: 1. Left frame; 2. Right frame; 3. Edge vertical plate; 4. U-shaped handrail; 5. Guardrail panel; 6. Threaded post; 7. Connecting crossbar; 8. L-shaped load-bearing frame; 9. Scissor telescopic assembly; 10. Telescopic rod; 11. Vertical block; 12. Plum blossom knob; 13. Caster wheel; 14. Support block; 15. Connecting lug. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0022] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example

[0024] This application discloses a foldable and retractable trolley for transporting building materials. Please refer to [link / reference]. Figure 1 and Figure 4The vehicle includes a left frame 1 and a right frame 2. A scissor-type telescopic assembly 9 is fixed to the bottom of the left frame 1, and the right frame 2 is fixed to the end of the scissor-type telescopic assembly 9 furthest from the left frame 1. Edge vertical plates 3 are welded to the top surfaces of both the left and right frames 1 and 2. U-shaped handrails 4 are welded to the upper sides of the edge vertical plates 3. Two guardrail plates 5 are welded to the lower surface of the edge vertical plates 3, and threaded posts 6 are welded to the top of each guardrail plate 5. The two guardrail plates 5 are welded to the top surfaces of the left and right frames 1 and 2. The left frame... A telescopic rod 10 is hinged to the bottom of the left frame 1, with one end extending to the bottom of the right frame 2. A socket is provided at one end of the telescopic rod 10. A vertical block 11 is welded to the bottom surface of the right frame 2, and a perforated knob 12 is threaded onto the surface of the vertical block 11. One end of the perforated knob 12 is inserted into the socket of the telescopic rod 10. Casters 13 are installed at the corners of the bottom surfaces of both the left and right frames 1 and 2. Both the left and right frames 1 and 2 are made of high-strength alloy material, capable of supporting heavy decorative materials. A scissor-type telescopic component 9 is fixed to the bottom of the left frame 1. This component is crucial for achieving the folding function of the trolley. The end of the scissor-type telescopic component 9 furthest from the left frame 1 is fixed to the right frame 2. By extending and retracting the scissor-type telescopic component 9, the left and right frames 1 and 2 can be moved closer or further apart, achieving folding and unfolding. Both the left frame 1 and the right frame 2 have edge vertical plates 3 welded to their top surfaces. These edge vertical plates 3 not only reinforce the top edges of the frames but also prevent materials from slipping off the sides. A U-shaped handrail 4 is welded to the upper side of the edge vertical plate 3, and its surface is covered with a non-slip rubber sleeve for easy gripping and pushing, maintaining stability even with sweaty hands. Two guardrail plates 5 are welded to the lower surface of the edge vertical plate 3. These guardrail plates 5 are perpendicular to the edge vertical plate 3, further enhancing the material blocking effect. Threaded posts 6 are welded to the top of both guardrail plates 5, used to connect other components. The two guardrail plates 5 are welded to the top surfaces of the left frame 1 and the right frame 2, making the connection between the guardrail plates 5 and the frames more secure. A telescopic rod 10 is hinged to the bottom of the left frame 1, and its length can be adjusted according to the unfolded state of the left frame 1 and the right frame 2. One end of the telescopic rod 10 extends to the bottom of the right frame 2, and an insertion hole is provided at one end of the telescopic rod 10. A vertical block 11 is welded to the bottom surface of the right frame 2, which provides a support point for fixing the telescopic rod 10. A swivel knob 12 is threaded on the surface of the vertical block 11. The swivel knob 12 is designed for easy manual tightening or loosening by the user. One end of the swivel knob 12 is inserted into the insertion hole of the telescopic rod 10. By inserting the knob, the left frame 1 and the right frame 2 can be fixed in the unfolded state to prevent the frame from shaking during use. A movable wheel 13 is installed at the corner of the bottom surface of both the left frame 1 and the right frame 2. The movable wheel 13 is made of wear-resistant rubber and has a braking function, which makes it easy for the cart to stop and fix its position at any time during transportation.

[0025] Please see Figure 1-4Two connecting crossbars 7 are provided between the left frame 1 and the right frame 2. Each connecting crossbar 7 has a connecting lug 15 welded to both ends to engage with the threaded post 6. The threaded post 6 has a nut threaded onto its surface to abut the connecting lug 15. L-shaped support frames 8 are welded to the bottom of both connecting crossbars 7 and are in contact with each other. Support blocks 14 are welded to the sides of both L-shaped support frames 8 and are in contact with the edge of the top surface of the left frame 1 or the right frame 2. To further improve the load-bearing capacity of the trolley and the protection of materials, two connecting crossbars 7 are provided between the left frame 1 and the right frame 2. The connecting crossbars 7 are made of solid steel with high strength. Each connecting crossbar 7 has a connecting lug 15 welded to both ends to engage with the threaded post 6. The inner diameter of the connecting lug 15 matches the outer diameter of the threaded post 6 to ensure a tight connection. The threaded post 6 has a nut threaded onto its surface that abuts against the connecting lug 15. Tightening the nut secures the connecting crossbar 7 to the threaded post 6, preventing it from loosening. L-shaped support frames 8 are welded to the bottom surfaces of both connecting crossbars 7. These L-shaped support frames 8 support materials placed on the trolley, preventing direct contact and wear between the materials and the frame. The two L-shaped support frames 8 form a complete support surface. Support blocks 14 are welded to the sides of both L-shaped support frames 8, contacting the edge of the top surface of the left frame 1 or right frame 2. The support blocks 14 distribute the pressure on the L-shaped support frames 8, making them more stable.

[0026] Please see Figure 1 and Figure 3 The scissor-type telescopic assembly 9 consists of two support members with slide rails and a scissor-type connecting rod installed between the two support members. The end of the scissor-type connecting rod is slidably connected to the slide rail of the support member through a sliding member. The scissor-type telescopic assembly 9 has an ingenious structural design. It consists of two support members with slide rails and a scissor-type connecting rod installed between the two support members. The support members are made of thickened steel plates, and the inside of the slide rail is smooth, reducing the friction during sliding. The end of the scissor-type connecting rod is slidably connected to the slide rail of the support member through a sliding member. When the trolley needs to be folded or unfolded, the end of the scissor-type connecting rod slides in the slide rail, and the two support members of the scissor-type telescopic assembly 9 move closer or further apart, thereby realizing the folding and unfolding operation of the entire trolley. The operation is flexible and convenient.

[0027] Please see Figure 1-4 The fence panel 5, threaded post 6, connecting crossbar 7, connecting lug 15, and L-shaped load-bearing frame 8 constitute a detachable protective fence structure. This detachable design has many advantages. When transporting small or easily scattered materials, the protective fence can be installed to provide protection. Moreover, when the trolley is folded and stored, removing the protective fence reduces space occupation and facilitates storage.

[0028] Please see Figure 3Two telescopic rods 10 are parallel to each other at the bottom of the left frame 1. Corresponding to the telescopic rods 10 at the bottom of the right frame 2, two sets of vertical blocks 11 and a swivel-shaped knob 12 are installed. To ensure the stability of the left and right frames 1 and 2 in their unfolded state, the two telescopic rods 10 are symmetrically distributed at the bottom of the left frame 1, resulting in more even force distribution. The two sets of vertical blocks 11 and swivel-shaped knobs 12 at the bottom of the right frame 2, corresponding to the telescopic rods 10, further enhance the stability of the unfolded frame and prevent deformation during transportation. The telescopic rods 10 employ a damping design; specifically, the ST-802 damping telescopic rod can be used. Its special internal damping structure generates appropriate friction, preventing the telescopic rod from retracting after being stretched to the required length, thus ensuring the stability of the left and right frames 1 and 2 in their unfolded state.

[0029] Please see Figure 2 and Figure 4 Two support blocks 14 are welded to both the left and right sides of the L-shaped support frame 8. The installation height of the L-shaped support frame 8 is greater than the installation height of the scissor-type telescopic assembly 9. These four support blocks 14, evenly distributed on both sides of the L-shaped support frame 8, provide support from multiple angles, improving its load-bearing capacity and preventing bending and deformation due to excessive force. The greater installation height of the L-shaped support frame 8 compared to the scissor-type telescopic assembly 9 is designed to prevent collisions between the L-shaped support frame 8 and the scissor-type telescopic assembly 9 during folding, ensuring smooth folding operations and preventing mutual wear, thus extending the trolley's lifespan.

[0030] The implementation principle of this embodiment is as follows: In use, firstly, the left frame 1 and right frame 2 are pulled apart to a suitable distance using the scissor-type telescopic assembly 9. The telescopic rod 10 at the bottom of the left frame 1 is adjusted so that one end of the telescopic rod 10 extends below the right frame 2. Then, the plum blossom knob 12 on the vertical block 11 is inserted into the insertion hole of the telescopic rod 10 and tightened, thereby fixing the left frame 1 and right frame 2 in the unfolded state, ensuring the trolley remains stable when carrying materials. At this time, the installed connecting crossbar 7 and L-shaped support frame constitute a protective and support structure, which can hold decoration materials. The user pushes the trolley using the U-shaped handle and uses the bottom moving wheels 13 to transport materials. When folding for storage is required, first unscrew the nut on the threaded post 6, remove the connecting crossbar 7 and L-shaped support frame, and dismantle the detachable protective fence structure. Then, loosen the plum blossom knob 12, pull the telescopic rod 10 out from under the right frame 2, and use the scissor-type telescopic assembly 9 to bring the left frame 1 and right frame 2 closer together to complete the folding for storage.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A foldable and storable trolley for transporting building materials, comprising a left frame (1) and a right frame (2), characterized in that: The bottom of the left frame (1) is fixed with a scissor telescopic assembly (9), and the end of the scissor telescopic assembly (9) away from the left frame (1) is fixed with a right frame (2). The top surfaces of the left frame (1) and the right frame (2) are both welded with edge vertical plates (3), and U-shaped handrails (4) are welded to the upper side of the edge vertical plates (3). The lower surface of the edge vertical plates (3) is welded with two guardrail plates (5), and the top of the two guardrail plates (5) is welded with threaded posts (6). The two guardrail plates (5) are connected to the left frame (1) and the right frame. (2) The top surface is welded together. The bottom of the left frame (1) is hinged with a telescopic rod (10), and one end of the telescopic rod (10) extends to the bottom of the right frame (2). One end of the telescopic rod (10) is provided with a hole. The bottom surface of the right frame (2) is welded with a vertical block (11), and the surface of the vertical block (11) is threaded with a plum blossom knob (12). One end of the plum blossom knob (12) is inserted into the hole of the telescopic rod (10). The corners of the bottom surfaces of the left frame (1) and the right frame (2) are both equipped with casters (13).

2. The foldable and storable decoration material handling trolley according to claim 1, characterized in that: Two connecting crossbars (7) are provided between the left frame (1) and the right frame (2), and each connecting crossbar (7) has a connecting lug (15) welded to both ends to engage with the threaded post (6). The threaded post (6) has a nut threaded onto its surface to abut the connecting lug (15). The bottom surfaces of the two connecting crossbars (7) are welded with L-shaped support frames (8), and the two L-shaped support frames (8) are in contact with each other. The sides of the two L-shaped support frames (8) are welded with support blocks (14), and the support blocks (14) are in contact with the edge of the top surface of the left frame (1) or the right frame (2).

3. The foldable and storable decoration material handling trolley according to claim 1, characterized in that: The scissor telescopic assembly (9) consists of two support members with slide rails and a scissor connecting rod installed between the two support members, and the end of the scissor connecting rod is slidably connected to the slide rail of the support member through a sliding member.

4. The foldable and storable decoration material handling trolley according to claim 2, characterized in that: The fence panel (5), threaded post (6), connecting crossbar (7), connecting lug (15) and L-shaped support frame (8) constitute a detachable protective fence structure.

5. The foldable and storable decoration material handling trolley according to claim 1, characterized in that: The left frame (1) has two telescopic rods (10) arranged in parallel at the bottom, and the right frame (2) has two sets of vertical blocks (11) and a plum blossom knob (12) arranged at the bottom corresponding to the telescopic rods (10).

6. The foldable and storable decoration material handling trolley according to claim 2, characterized in that: Two support blocks (14) are welded to both the left and right sides of the L-shaped support frame (8), and the installation height of the L-shaped support frame (8) is greater than the installation height of the scissor telescopic assembly (9).

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