Wooden trolley

Abstract

The utility model provides a kind of wooden trolley, comprising: vehicle body and four supporting members, the load-carrying surface of vehicle body is spaced apart and provided with four mounting holes along the edge of load-carrying surface, each mounting hole is set along the height direction of vehicle body and is penetrated;Each supporting member is set one-to-one with each mounting hole, each supporting member is embedded in corresponding mounting hole respectively, and the upper end surface of each supporting member is flush with the load-carrying surface of vehicle body;Supporting member is provided with accommodating groove, accommodating groove is used to accommodate at least part of the wheel of trolley above vehicle body;Wherein, accommodating groove is at least two, the extension direction of one of at least two accommodating grooves and the extension direction of another of at least two accommodating grooves form a preset included angle, the preset included angle is greater than 0 °, and less than or equal to 90 °.The wooden trolley effectively solves the technical problem that the existing wooden trolley is difficult to effectively consider between stacking stability and high-quality appearance.

Description

Technical Field

[0001] This utility model relates to the technical field of trolleys, specifically to a wooden trolley. Background Technology

[0002] In existing technologies, wooden trolleys are widely used in warehousing and logistics scenarios due to their natural texture, environmental friendliness, and good load-bearing capacity. To improve space utilization and facilitate centralized storage and transportation, wooden trolleys are usually designed with a stackable structure—that is, by making specific concave shapes on the wooden platform, multiple trolleys can be stably nested and stacked.

[0003] To achieve the aforementioned stacking functionality, wooden tabletops often require special shaping processes, such as milling grooves, steps, or recessed contours into the edges or central area. However, during actual processing, due to the inherent anisotropy of wood, inconsistent fiber orientation, and factors such as tool wear, feed speed, or improper cutting parameter settings on processing equipment (e.g., milling machines, engraving machines), surface defects such as burrs, chipping, and tearing are easily generated at the processed edges—a phenomenon known in the industry as "rough edges." These rough edges not only severely affect the product's appearance quality and reduce its overall aesthetics but may also pose a risk of injury to personnel during subsequent handling, stacking, or use, thereby damaging the user experience and product quality.

[0004] Furthermore, although nesting and stacking of trolleys can be achieved to some extent through design, the limited rigidity of wood, the difficulty in precisely controlling structural tolerances, and the unevenness of the contact surface caused by rough edges make it difficult to effectively guarantee the overall stability after stacking. Especially during transportation or movement, if encountering bumps, sudden braking, or tilting, the upper trolley is very prone to slipping or even overturning, posing significant safety hazards.

[0005] It is evident that existing wooden trolleys still face significant technical bottlenecks in balancing functional stacking requirements with high-quality appearance: on the one hand, the recessed shaping process implemented to meet stacking requirements is prone to burr defects; on the other hand, insufficient structural fit precision and surface quality issues result in poor stacking stability, severely restricting the product's practicality, safety, and market competitiveness.

[0006] Therefore, the existing technology still needs further development. Utility Model Content

[0007] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a wooden trolley to solve the technical problem that existing wooden trolleys are unable to effectively balance stacking stability and high-quality appearance.

[0008] To achieve the above-mentioned technical objectives, according to one aspect of this utility model: a wooden trolley is provided, comprising: a trolley body and four supporting members. Four mounting holes are spaced apart along the edge of the supporting surface of the trolley body, each mounting hole penetrating along the height direction of the trolley body. Each supporting member corresponds to one of the mounting holes, and each supporting member is embedded in its corresponding mounting hole, with its upper end face flush with the supporting surface of the trolley body. Each supporting member has a receiving groove for accommodating at least a portion of the wheels of the trolley located above the trolley body. There are at least two receiving grooves, and the extending direction of one of the at least two receiving grooves forms a preset angle with the extending direction of the other of the at least two receiving grooves. The preset angle is greater than 0° and less than or equal to 90°, so that the wheels arranged at different angles on the wooden trolley located above the trolley body can be adapted to fit through the receiving grooves.

[0009] Furthermore, the support component has two interconnected receiving slots, one of which extends along the length of the vehicle body, and the other of which extends along the width of the vehicle body.

[0010] Furthermore, the bottom wall of the receiving groove extends along a pre-defined arc trajectory to fit the outer contour of the wheel.

[0011] Furthermore, the support member has a first support section and a second support section that are connected to each other. The first support section extends along the length direction of the vehicle body, and the second support section extends along the width direction of the vehicle body. Each of the first support section and the second support section is provided with a receiving groove.

[0012] Furthermore, the vehicle body has a mounting surface opposite to the bearing surface. The mounting surface has a limiting groove corresponding to the opening of each mounting hole. The limiting groove is arranged around the opening to form a continuous annular structure. The limiting groove and the corresponding mounting hole form a stepped structure. The wooden trolley includes: multiple positioning blocks. The multiple positioning blocks are spaced apart along the edge of the support member on the side wall of the support member, and each positioning block is located at the bottom of the support member. When the support member is inserted from the mounting surface into the corresponding mounting hole, each positioning block is embedded in the corresponding limiting groove.

[0013] Furthermore, the vehicle body has a mounting surface that is opposite to the bearing surface. The wooden trolley also includes four caster wheel assemblies, each caster wheel assembly is mounted on the mounting surface, each caster wheel assembly is corresponding to each mounting hole, and each caster wheel assembly is located below the corresponding mounting hole.

[0014] Furthermore, the caster wheel assembly includes: a support plate mounted on a mounting surface, the support plate being located below a corresponding mounting hole, the support plate being used to seal at least a portion of the opening of the mounting surface; a wheel frame rotatably mounted on the support plate via a steering bearing, and the wheel frame being located at the bottom of the support plate; and a wheel mounted on the wheel frame via an axle, the wheel being rotatably mounted relative to the wheel frame about the axle.

[0015] Furthermore, the wooden trolley also includes: multiple fasteners, the support plate is mounted on the mounting surface by multiple fasteners, and the multiple fasteners are spaced apart.

[0016] Furthermore, the vehicle body is provided with two operating holes, which are spaced apart and each operating hole is located between two adjacent mounting holes.

[0017] Beneficial effects: Applying the technical solution of this utility model, the wooden trolley provided by this utility model includes a trolley body and four support members. The trolley body is used to carry materials. Four mounting holes are spaced apart along the edge of the bearing surface of the trolley body, and each mounting hole is arranged through the height of the trolley body. Each support member is arranged in a corresponding manner to each mounting hole, and each support member is embedded in the corresponding mounting hole. The upper end surface of each support member is flush with the bearing surface of the trolley body. A receiving groove is provided on the support member. The opening of the receiving groove is located on the upper end surface of the support member. The receiving groove is used to accommodate at least a portion of the wheels of the trolley located above the trolley body. There are at least two receiving grooves. The extension direction of one of the at least two receiving grooves forms a preset angle with the extension direction of the other of the at least two receiving grooves. The preset angle is greater than 0° and less than or equal to 90°. Through this design, each receiving groove can accommodate wheels arranged at different angles in the wooden trolley located above the trolley body, thereby improving the stability and flexibility when stacking.

[0018] Therefore, by providing at least two receiving slots on the support member, with the extension directions of these slots forming a preset angle greater than 0° and less than or equal to 90°, it can simultaneously accommodate wheels arranged at different angles on the upper wooden trolley, such as longitudinal, transverse, or diagonal casters. This significantly improves the versatility and adaptability of the wooden trolleys during stacking or docking, effectively avoiding the problem of unstable stacking due to mismatched wheel directions. Furthermore, by providing multiple support members with receiving slots at the edge of the bearing surface, multiple wooden trolleys can be stacked stably and precisely, suitable for warehousing, transportation, and other scenarios, improving space utilization and logistics efficiency. At the same time, by providing multiple receiving slots with different extension directions, when two adjacent wooden trolleys are stacked, they can be staggered at different angles, such as one longitudinally aligned and the other transversely aligned. This increases the diversity of the contact area distribution, enhances the overall stacking structure's anti-tipping ability, effectively prevents tilting or collapse during stacking, and significantly enhances stacking stability. Furthermore, by embedding the support component into the corresponding mounting hole, making its upper surface flush with the bearing surface, a continuous and flat surface is formed. This eliminates the need for exposed grooves, steps, or other complex limiting structures on the bearing surface of the vehicle body, effectively avoiding the risk of rough edges affecting the product's aesthetics or causing injuries. This significantly enhances the product's premium feel and safety. Moreover, by transferring the structural function of accommodating the wheels to an independent support component, the vehicle body only needs regular through-hole mounting holes, greatly reducing the need for complex contour milling. This fundamentally reduces surface defects such as burrs, chipping, or tearing caused by wood anisotropy or variations in cutting processes, improving processing yield and product consistency. This invention effectively solves the technical problem of existing wooden trolleys struggling to achieve a balance between stacking stability and a high-quality appearance. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings: Figure 1 A first-view structural schematic diagram of the wooden trolley provided according to the present invention is shown; Figure 2 A second-view structural schematic diagram of the wooden trolley provided according to this utility model is shown; Figure 3 It shows Figure 2 A magnified view of a portion at point A; Figure 4 A schematic diagram of the structure of the wooden trolley provided according to the present invention is shown; Figure 5A schematic diagram showing the connection of the support and positioning block in the wooden trolley provided according to the present invention is shown; Figure 6 A schematic diagram of the structure of two wooden trolleys stacked according to the present invention is shown.

[0020] The above figures include the following reference numerals: 1. Vehicle body; 11. Load-bearing surface; 12. Mounting surface; 2. Mounting hole; 3. Support component; 30. Receiving groove; 31. First support section; 32. Second support section; 4. Limiting groove; 5. Positioning block; 6. Universal wheel assembly; 61. Support plate; 62. Wheel frame; 63. Steering bearing; 64. Wheel; 65. Wheel axle; 7. Fastener; 8. Operating hole. Detailed Implementation

[0021] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0022] Please see Figures 1 to 6 According to an embodiment of the present invention, a wooden trolley is provided, comprising: a trolley body 1 and four support members 3. Four mounting holes 2 are spaced apart along the edge of the bearing surface 11 of the trolley body 1, and each mounting hole 2 extends through the trolley body 1 along its height direction. Each support member 3 corresponds to each mounting hole 2, and each support member 3 is embedded in its corresponding mounting hole 2, with its upper end face flush with the bearing surface 11 of the trolley body 1. Each support member 3 has a receiving groove 30 for accommodating at least a portion of the wheels 64 of the trolley located above the trolley body 1. There are at least two receiving grooves 30, and the extending direction of one of the at least two receiving grooves 30 forms a preset angle with the extending direction of the other receiving groove 30. The preset angle is greater than 0° and less than or equal to 90°, so that the wheels 64 arranged at different angles in the wooden trolley located above the trolley body 1 can be adapted to each receiving groove 30.

[0023] As can be seen, the wooden trolley provided by this utility model includes a trolley body 1 and four support members 3. The trolley body 1 is used to carry materials. Four mounting holes 2 are spaced apart along the edge of the bearing surface 11 of the trolley body 1, and each mounting hole 2 is arranged through the trolley body 1 along its height direction. Each support member 3 is arranged in a one-to-one correspondence with each mounting hole 2, and each support member 3 is respectively embedded in the corresponding mounting hole 2, and the upper end surface of each support member 3 is flush with the bearing surface 11 of the trolley body 1. A receiving groove 30 is formed on the support member 3, and the groove opening of the receiving groove 30 is located at the support member 3. On the upper surface, the receiving groove 30 is used to receive at least a portion of the wheel 64 of the trolley located above the vehicle body 1. There are at least two receiving grooves 30. The extending direction of one of the receiving grooves 30 and the extending direction of the other receiving groove 30 form a preset angle. The preset angle is greater than 0° and less than or equal to 90°. With this design, each receiving groove 30 can be adapted to the wheels 64 arranged at different angles in the wooden trolley located above the vehicle body 1, thereby improving the stability and flexibility when stacking.

[0024] Therefore, by providing at least two receiving slots 30 on the support member 3, with the extending directions of the receiving slots 30 forming a preset angle greater than 0° and less than or equal to 90°, it can simultaneously accommodate wheels arranged at different angles on the upper wooden trolley (e.g., longitudinal, transverse, or diagonal casters), significantly improving the versatility and adaptability of the wooden trolleys when stacking or docking, effectively avoiding the problem of unstable stacking due to mismatched wheel directions. Furthermore, by providing multiple support members 3 with receiving slots 30 at the edge of the bearing surface 11, multiple wooden trolleys can be stacked stably and accurately, suitable for warehousing, transportation, and other scenarios, improving space utilization and logistics efficiency. At the same time, by providing multiple receiving slots with different extending directions, when two adjacent wooden trolleys are stacked, they can be staggered at different angles (e.g., one longitudinally aligned, the other transversely aligned), thereby increasing the diversity of the contact area distribution, improving the overall stacking structure's anti-tipping ability, effectively preventing tilting or collapse during stacking, and significantly enhancing stacking stability. Furthermore, by embedding the support member 3 into the corresponding mounting hole 2, making its upper surface flush with the bearing surface 11, a continuous and flat surface is formed. This eliminates the need for exposed grooves, steps, or other complex limiting structures on the bearing surface 11 of the vehicle body 1, effectively avoiding the risk of rough edges affecting the product's aesthetic appearance or causing injuries. This significantly enhances the product's premium feel and safety. Moreover, by transferring the structural function of accommodating the wheels to the independent support member 3, the vehicle body 1 only needs regular through-hole mounting holes 2, greatly reducing the need for complex contour milling of the vehicle body 1. This fundamentally reduces surface defects such as burrs, chipping, or tearing caused by wood anisotropy or variations in cutting processes, improving processing yield and product consistency. This invention effectively solves the technical problem of existing wooden trolleys struggling to achieve a balance between stacking stability and high-quality appearance.

[0025] Specifically, such as Figure 1 and Figure 5 As shown, the support member 3 has two interconnected receiving grooves 30. One of the receiving grooves 30 extends along the length direction of the vehicle body 1, and the other receiving groove 30 extends along the width direction of the vehicle body 1, so that the two receiving grooves 30 are arranged perpendicularly at 90°.

[0026] With the above structural design, the vertically arranged dual receiving slots can accommodate wheels arranged longitudinally or laterally, ensuring that the wheels of the upper wooden trolleys can smoothly fit into the corresponding slots regardless of whether they are aligned along their length or rotated 90° to align them along their width. This eliminates the need to restrict the orientation of the wooden trolleys, greatly improving the stacking flexibility and adaptability of multiple units during storage or transportation. Furthermore, when stacking multiple layers, adjacent wooden trolleys can be arranged in an orthogonal staggered pattern. For example, the four wheels of the lower wooden trolley can be placed longitudinally, while the four wheels of the upper wooden trolley can be placed laterally. This arrangement effectively prevents tilting or collapse during stacking, significantly improving the overall stability of the stack.

[0027] Among them, such as Figure 1 As shown, arrow B indicates the length direction of vehicle body 1, and arrow C indicates the width direction of vehicle body 1.

[0028] Specifically, such as Figure 1 and Figure 5 As shown, the bottom wall of the receiving groove 30 extends along a preset arc trajectory to fit the outer contour of the wheel 64.

[0029] By adopting the above-mentioned structural design, and by designing the bottom wall of the receiving groove 30 to extend along a preset arc trajectory and adapt it to the outer contour of the wheel 64, not only is the fit and positioning accuracy of the wheel 64 when it is embedded significantly improved, effectively preventing instability caused by shaking or displacement during stacking, but the receiving groove 30 is also given a good guiding function—even if there is a slight deviation in the initial alignment of the wheel 64, it can automatically slide into the correct position under the guidance of the arc-shaped bottom wall, thereby simplifying operation and improving assembly efficiency; at the same time, the arc-shaped structure increases the contact area between the wheel 64 and the bottom of the groove, making the load distribution more uniform, reducing local wear, extending the service life of the support and the wheel 64, and avoiding safety hazards caused by sharp edges, further improving the safety, durability and overall high-end texture of the product.

[0030] Specifically, such as Figure 1 and Figure 5 As shown, the support member 3 has a first support section 31 and a second support section 32 that are connected to each other. The first support section 31 extends along the length direction of the vehicle body 1; the second support section 32 extends along the width direction of the vehicle body 1; and a receiving groove 30 is provided on the first support section 31 and the second support section 32 respectively.

[0031] With the above-mentioned structural configuration, the support member 3 has a first support section 31 and a second support section 32 that are connected to each other, extending along the length and width directions of the vehicle body 1 respectively, and each is provided with a receiving groove 30. This structure not only achieves bidirectional compatibility with longitudinally and laterally arranged wheels 64, significantly improving the adaptability of wooden trolleys when stacking or docking, but also allows adjacent wooden trolleys to be stacked in an orthogonal staggered manner.

[0032] Optionally, the support member 3 adopts an L-shaped structure design, wherein the first support section 31 and the second support section 32 are joined at the intersection by a right-angle connection. The two receiving grooves 30 are naturally connected at the L-shaped corner, thereby achieving through connection.

[0033] Specifically, such as Figures 2 to 5 As shown, the vehicle body 1 has a mounting surface 12 opposite to the bearing surface 11. The mounting surface 12 is provided with a limiting groove 4 corresponding to the opening of each mounting hole 2. The limiting groove 4 is arranged around the opening to form a continuous annular structure. The limiting groove 4 and the corresponding mounting hole 2 form a stepped structure. The wooden trolley includes: multiple positioning blocks 5. The multiple positioning blocks 5 are arranged at intervals along the edge of the support member 3 on the side wall of the support member 3, and each positioning block 5 is located at the bottom of the support member 3. When the support member 3 is inserted from the mounting surface 12 into the corresponding mounting hole 2, each positioning block 5 is embedded in the corresponding limiting groove 4.

[0034] By adopting the above-described structural design, annular limiting grooves 4 are provided around the openings of the mounting holes 2 on the mounting surface 12 of the vehicle body 1, and multiple positioning blocks 5 are arranged at intervals on the bottom sidewall of the support member 3. When the support member 3 is inserted into the corresponding mounting hole 2 from the mounting surface 12, each positioning block 5 can be embedded in the corresponding limiting groove 4, forming a reliable stepped limiting structure. This design not only significantly improves the stability and convenience of assembly, but also ensures the precise positioning of the support member 3 through the cooperation of the limiting grooves 4 and the positioning blocks 5, making its upper end face strictly flush with the bearing surface 11 of the vehicle body 1; at the same time, it simplifies the manufacturing and assembly process. In addition, the annular continuous limiting groove 4 structure distributes the stress evenly, effectively dispersing local stress concentration, further enhancing the structural strength and durability of the connection parts, and taking into account functionality, reliability and production efficiency.

[0035] The phrase “each positioning block 5 is embedded in the corresponding limiting groove 4” means that each positioning block 5 on the side wall of each support 3 is embedded in the limiting groove 4 corresponding to each support 3.

[0036] The mounting surface 12 of the vehicle body 1 can be understood as the lower end surface of the vehicle body 1, and the bearing surface 11 of the vehicle body 1 can be understood as the upper end surface of the vehicle body 1.

[0037] Furthermore, when each positioning block 5 is embedded in the limiting groove 4 corresponding to the mounting hole 2, the positioning block 5 and the corresponding limiting groove 4 form a stop limiting fit, thereby effectively preventing the support 3 from axially dislodging or loosening due to vibration or load during use, ensuring its installation stability and structural reliability.

[0038] Optionally, when the support 3 is assembled to the vehicle body 1, the support 3 is inserted from the bottom (i.e., mounting surface 12) to the top (i.e. bearing surface 11) of the vehicle body 1, so that the positioning block 5 can be embedded in the corresponding limiting groove 4, and the upper end surface of the support 3 is flush with the bearing surface 11.

[0039] Specifically, such as Figure 2 As shown, the vehicle body 1 has a mounting surface 12 that is opposite to the bearing surface 11. The wooden trolley also includes four universal wheel assemblies 6. Each universal wheel assembly 6 is mounted on the mounting surface 12. Each universal wheel assembly 6 is corresponding to each mounting hole 2, and each universal wheel assembly 6 is located below the corresponding mounting hole 2.

[0040] By adopting the above-mentioned structural configuration, by installing four omnidirectional wheel assemblies 6 on the mounting surface 12 of the vehicle body 1, and aligning them one-to-one with the four mounting holes 2 and placing them directly below each mounting hole 2, not only is precise alignment of the bottom walking mechanism and the upper support structure in terms of spatial layout achieved, which is beneficial to the modular design and assembly of the overall structure, but it also ensures that when multiple wooden trolleys are stacked, each wheel 64 of the upper trolley can be smoothly embedded into the corresponding receiving groove 30 on the lower trolley support 3. At the same time, the omnidirectional wheel assembly 6 makes the wooden trolley run flexibly and smoothly during turning and pushing, significantly improving the product's ease of operation and practicality.

[0041] Specifically, such as Figure 2 and Figure 3 As shown, the omnidirectional wheel assembly 6 includes: a support plate 61, which is mounted on the mounting surface 12 and located below the corresponding mounting hole 2, and is used to block at least a portion of the opening of the mounting surface 12; a wheel frame 62, which is rotatably mounted on the support plate 61 via a steering bearing 63 and is located at the bottom of the support plate 61; and a wheel 64, which is mounted on the wheel frame 62 via an axle 65 and is rotatably mounted relative to the wheel frame 62 around the axle 65.

[0042] With the above-described structure, by mounting the support plate 61 of the universal wheel assembly 6 onto the mounting surface 12 of the vehicle body 1 and positioning it below the corresponding mounting hole 2, the support plate 61 can partially or completely block the opening on the mounting surface 12. This design not only effectively conceals the opening formed at the bottom by the through mounting hole 2, improving the product's appearance and preventing foreign objects from entering, but more importantly, the support plate 61 also acts as an axial stop structure for the support member 3. Specifically, when the support member 3 is inserted into the mounting hole 2 from bottom to top, the support plate 61 can effectively stop the support member 3 and its positioning block 5, thereby preventing the support member 3 from falling downwards along the height direction of the vehicle body 1. At the same time, the wheel frame 62 is rotatably mounted on the bottom of the support plate 61 via the steering bearing 63, and the wheel 64 rotates flexibly around the wheel axle 65, ensuring smooth and stable pushing and steering of the wooden trolley. This design ingeniously integrates the functions of walking, structural sealing, and anti-detachment of the support components into one unit, significantly improving the overall structural compactness, assembly reliability, and operational safety of the machine without adding any extra parts.

[0043] The phrase "the support plate 61 is located below the corresponding mounting hole 2, and the support plate 61 is used to block at least a portion of the opening of the mounting surface 12" can be understood as follows: the support plate 61 is located below the corresponding mounting hole 2, each mounting hole 2 will form a corresponding opening on the mounting surface 12, and the support plate 61 is used to block at least a portion of the corresponding opening.

[0044] Furthermore, the support plate 61 can also shield at least a portion of the corresponding limiting groove 4.

[0045] Specifically, such as Figure 2 and Figure 3 As shown, the wooden trolley also includes: multiple fasteners 7, and the support plate 61 is installed on the mounting surface 12 by multiple fasteners 7, with the multiple fasteners 7 spaced apart.

[0046] By employing the above-described structural design, the support plate 61 is securely connected to the mounting surface 12 via fasteners 7 arranged at multiple intervals. This not only significantly improves the overall installation strength and vibration resistance of the caster wheel assembly 6, but also effectively distributes the load, preventing loosening or structural failure caused by localized stress concentration. Simultaneously, the fastening method facilitates assembly and maintenance, ensuring the reliable implementation of the anti-detachment and stop function of the support component 3 while further enhancing the stability, durability, and safety of the entire machine structure.

[0047] Optionally, fastener 7 is a bolt.

[0048] Specifically, such as Figure 1 , Figure 4 and Figure 6 As shown, the vehicle body 1 is provided with two operating holes 8, which are spaced apart, and each operating hole 8 is located between two adjacent mounting holes 2.

[0049] By adopting the above-mentioned structural configuration, two spaced-apart operating holes 8 are provided on the vehicle body 1, with each operating hole 8 located between two adjacent mounting holes 2. This not only provides an operating area that is easy to grip and apply force for manual assembly or stacking operations, but also allows operators to easily make real-time fine adjustments to the alignment of the support 3, wheels 64, and receiving grooves 30, ensuring that the wheels 64 of the upper wooden trolley are accurately embedded in the corresponding receiving grooves 30 of the lower wooden trolley. At the same time, this layout cleverly utilizes the structural gaps between the mounting holes 2, avoiding the weakening of the overall strength of the vehicle body by additional openings. Without reducing the load-bearing capacity, it significantly improves assembly efficiency, stacking accuracy, and safety during use.

[0050] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0051] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0052] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0053] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0054] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A wooden trolley, characterized in that, include: The vehicle body (1) has four mounting holes (2) spaced apart along the edge of the bearing surface (11) on the bearing surface (11) of the vehicle body (1), and each mounting hole (2) is arranged through the height direction of the vehicle body (1). Four support members (3) are provided, each of the support members (3) is corresponding to each of the mounting holes (2), each of the support members (3) is embedded in the corresponding mounting hole (2), and the upper end surface of each support member (3) is flush with the bearing surface (11) of the vehicle body (1); the support member (3) is provided with a receiving groove (30), the receiving groove (30) is used to receive at least part of the wheel (64) of the trolley located above the vehicle body (1); The receiving slots (30) are at least two, and the extension direction of one of the receiving slots (30) and the extension direction of the other of the receiving slots (30) form a preset angle, the preset angle being greater than 0° and less than or equal to 90°, so as to adapt the wheels (64) arranged at different angles in the wooden trolley located above the vehicle body (1) through each receiving slot (30).

2. The wooden trolley according to claim 1, characterized in that, The support member (3) has two interconnected receiving grooves (30), one of the receiving grooves (30) extends along the length direction of the vehicle body (1), and the other receiving groove (30) extends along the width direction of the vehicle body (1).

3. The wooden trolley according to claim 1 or 2, characterized in that, The bottom wall of the receiving groove (30) extends along a preset arc trajectory to fit the outer contour of the wheel (64).

4. The wooden trolley according to claim 2, characterized in that, The support member (3) has a first support section (31) and a second support section (32) connected to each other. The first support section (31) extends along the length direction of the vehicle body (1), and the second support section (32) extends along the width direction of the vehicle body (1). The first support section (31) and the second support section (32) are respectively provided with a receiving groove (30).

5. The wooden trolley according to claim 1, characterized in that, The vehicle body (1) has a mounting surface (12) opposite to the bearing surface (11). The mounting surface (12) is provided with a limiting groove (4) corresponding to the opening of each mounting hole (2). The limiting groove (4) is arranged around the opening to form a continuous ring structure. The limiting groove (4) and the corresponding mounting hole (2) form a stepped structure. The wooden trolley includes: a plurality of positioning blocks (5). The plurality of positioning blocks (5) are spaced along the edge of the support member (3) on the side wall of the support member (3), and each positioning block (5) is located at the bottom of the support member (3). When the support member (3) is inserted from the mounting surface (12) into the corresponding mounting hole (2), each of the positioning blocks (5) is embedded in the corresponding limiting groove (4).

6. The wooden trolley according to claim 1, characterized in that, The vehicle body (1) has a mounting surface (12) that is opposite to the bearing surface (11). The wooden trolley also includes four universal wheel assemblies (6). Each universal wheel assembly (6) is mounted on the mounting surface (12). Each universal wheel assembly (6) is corresponding to each mounting hole (2), and each universal wheel assembly (6) is located below the corresponding mounting hole (2).

7. The wooden trolley according to claim 6, characterized in that, The omnidirectional wheel assembly (6) includes: A support plate (61) is mounted on the mounting surface (12), the support plate (61) is located below the corresponding mounting hole (2), and the support plate (61) is used to block at least a portion of the opening of the mounting surface (12); A wheel frame (62) is rotatably mounted on the support plate (61) via a steering bearing (63), and the wheel frame (62) is located at the bottom of the support plate (61); A wheel (64) is mounted on a wheel frame (62) via an axle (65), and the wheel (64) is rotatably disposed about the axle (65) relative to the wheel frame (62).

8. The wooden trolley according to claim 7, characterized in that, The wooden trolley also includes a plurality of fasteners (7), the support plate (61) is mounted on the mounting surface (12) by the plurality of fasteners (7), and the plurality of fasteners (7) are spaced apart.

9. The wooden trolley according to claim 1, characterized in that, The vehicle body (1) is provided with two operating holes (8), each of the operating holes (8) is spaced apart, and each of the operating holes (8) is located between two adjacent mounting holes (2).

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