Wooden cart

Abstract

To provide a wooden cart which has improved stability and flexibility when stacked. The wooden platform includes a car body (1) and four support members (3). The support surface (11) of the car body has four mounting holes drilled at intervals along the edge of the support surface, each mounting hole extending vertically along the car body. Each support member corresponds to each mounting hole in a one-to-one relationship, and each support member is fitted into its corresponding mounting hole, with the upper end face of each support member flush with the car body's support surface. The support members each have at least two grooves (30) for receiving at least a portion of a wheel (64) of the car body located above the car body. The grooves (30) form a predetermined angle between the extension direction of one of the grooves and the extension direction of the other of the grooves, the predetermined angle being greater than 0° and less than 90°. This wooden platform solves the technical problem of wooden car bodies in the prior art, which is the difficulty of effectively achieving both stacking stability and a high-quality appearance.

Description

[Technical Field]

[0001] The present invention relates to the technical field of trucks, and more particularly to wooden trucks. [Background technology]

[0002] In the prior art, wooden dollies are widely used in warehousing, logistics, etc. due to their natural texture, environmental protection characteristics, and good load-bearing capacity. In order to improve space utilization and facilitate centralized storage and transportation, wooden dollies are usually designed with a stackable structure, i.e., special recessed molding treatment is applied to the wooden platform surface, allowing stable nesting of multiple dollies.

[0003] To achieve this stacking function, the wooden base typically requires special shaping processes, such as milling grooves, steps, or constricted contours into the edges or central region of the base. However, during the actual processing process, factors such as the inherent anisotropy of wood, inconsistent grain direction, tool wear in the processing equipment (e.g., milling machines or engraving machines), and improper settings of feed rates or cutting parameters can easily cause surface defects such as trimming, chipping, and tears on the processed edges, known in the industry as "burrs." These burrs not only seriously affect the appearance quality of the product and reduce its overall aesthetic appeal, but also pose a risk of injury to personnel during subsequent transportation, stacking, or use, potentially compromising the user experience and the quality of the product.

[0004] Although nesting between carts can be achieved to some extent through shaping design, the limited rigidity of wood makes it difficult to precisely control the structural engagement tolerances, and the uneven contact surfaces due to burrs make it difficult to effectively ensure the overall stability of the stacked carts. Especially during transportation and movement, if the carts encounter shaking, sudden braking, or tilting, the upper carts are prone to slipping and tipping, posing a significant safety risk.

[0005] As can be seen from the above, conventional wooden carts still face obvious technical bottlenecks in achieving both functional stacking requirements and high-quality appearance. The recess shaping process performed to meet stacking requirements is prone to burr defects. In addition, the lack of structural engagement precision and surface quality issues result in poor stacking stability, which seriously limits the practicality, safety, and market competitiveness of the product.

[0006] Therefore, the prior art needs to be further developed. Summary of the Invention [Problem to be solved by the invention]

[0007] The purpose of this invention is to provide a trolley that overcomes the above-mentioned technical deficiencies and solves the technical problem of conventional wooden trolleys, which is that it is difficult to effectively achieve both stacking stability and high-quality appearance. [Means for solving the problem]

[0008] In order to achieve the above technical objectives, according to one aspect of the present invention, there is provided a wooden trolley comprising a car body and four support members, wherein the supporting surface of the car body has four mounting holes drilled at intervals along the edge of the supporting surface, each mounting hole being drilled along the height direction of the car body, each support member and each mounting hole being provided in one-to-one correspondence, each support member being fitted into its corresponding mounting hole, and the upper end surface of each support member being flush with the supporting surface of the car body, wherein the support members have at least two accommodation grooves for accommodating at least part of the wheels of the car body located above the car body, wherein the extension direction of one of the at least two accommodation grooves forms a predetermined angle with the extension direction of the other of the at least two accommodation grooves, the predetermined angle being greater than 0° and less than 90°, and each accommodation groove is adapted to fit wheels arranged at different angles on the wooden trolley located above the car body.

[0009] Furthermore, the support member has two accommodating grooves that communicate with each other, one of which extends along the longitudinal direction of the vehicle body, and the other of which extends along the width direction of the vehicle body.

[0010] Furthermore, the bottom wall of the receiving groove extends along a predetermined arcuate locus so as to fit the outer contour of the wheel.

[0011] Furthermore, the support member has a first receiving portion and a second receiving portion connected to each other, the first receiving portion extending along the longitudinal direction of the vehicle body and the second receiving portion extending along the width direction of the vehicle body, and each of the first receiving portion and the second receiving portion is provided with one accommodating groove.

[0012] Furthermore, the car body has an attachment surface facing the support surface, and the attachment surface has limit grooves corresponding to the openings of each attachment hole, the limit grooves being arranged around the openings to form a continuous ring structure and forming a step structure with the corresponding attachment holes, and the wooden trolley includes a plurality of stoppers arranged at intervals on the side walls of the support member along the edge of the support member and each located at the bottom of the support member, and when the support member is inserted from the attachment surface into the corresponding attachment hole, each stopper is fitted into the corresponding limit groove.

[0013] Furthermore, the car body has a mounting surface facing the mounting surface, and the wooden trolley further includes four caster components that are respectively attached to the mounting surface, provided in one-to-one correspondence with each mounting hole, and located below the corresponding mounting holes.

[0014] The caster component further includes a support plate attached to the mounting surface, positioned below the corresponding mounting hole, and configured to seal at least a portion of the hole opening in the mounting surface; a carrier rotatably mounted on the support plate via a steering bearing and positioned at the bottom of the support plate; and a wheel attached to the carrier via a wheel axle and rotatably mounted relative to the carrier around the wheel axle.

[0015] Additionally, the wooden dolly further includes a plurality of fasteners, and the support plate is attached to the mounting surface via the plurality of spaced-apart fasteners.

[0016] Furthermore, two operation holes are provided on the vehicle body, and each operation hole is provided at an interval and positioned between two adjacent mounting holes. [Effects of the Invention]

[0017] By using the technical solution of the present invention, the wooden dolly of the present invention includes a car body and four support members, the car body is used for placing materials, the support surface of the car body has four mounting holes drilled at intervals along the edge of the support surface, each mounting hole is drilled along the height direction of the car body, each support member and each mounting hole are provided in one-to-one correspondence, each support member is fitted into the corresponding mounting hole, and the upper end surface of each support member and the support surface of the car body are provided flush with each other, and the support members have accommodation grooves, the groove openings of which are located on the upper end surfaces of the support members, The storage grooves are used to store at least some of the wheels of the wooden dollies located above the car body, and there are at least two storage grooves, and the extension direction of one of the at least two storage grooves forms a predetermined angle with the extension direction of the other of the at least two storage grooves, and the predetermined angle is greater than 0° and less than or equal to 90°. With this design, each storage groove can accommodate wheels arranged at different angles on the wooden dollies located above the car body, thereby improving stability and flexibility when stacked.

[0018] As can be seen from the above, the support member is provided with at least two receiving grooves, and the extension directions of these receiving grooves form a predetermined angle, which is greater than 0° and less than 90°. Furthermore, it can be adapted to wheels arranged at different angles (e.g., casters arranged vertically, horizontally, or diagonally) on the wooden cart above, significantly improving the versatility and adaptability when stacking or connecting wooden carts and effectively avoiding the problem of inconsistent wheel orientation resulting in instable stacking. Furthermore, multiple support members with receiving grooves are provided on the edge of the loading surface, allowing multiple wooden carts to be stacked stably and accurately one above the other, suitable for warehouse storage, transportation, and other scenarios, improving space utilization and logistics efficiency. In addition, multiple receiving grooves with different extension directions are provided, which allows for different angle crossing arrangements (for example, one aligned vertically and the other aligned horizontally) when two adjacent wooden carts are stacked one above the other, thereby increasing the diversity of the contact area distribution, improving the rollover resistance of the entire stacking structure, effectively preventing tilting or tipping during stacking, and significantly enhancing stacking stability.In addition, the support members are inserted into the corresponding mounting holes, and their upper ends are flush with the loading surface, forming a continuous, flat surface, eliminating the need for exposed grooves, steps, or other complex limiting structures on the loading surface of the car body.This effectively avoids the rough edges of such structures that affect the appearance of the product or the risk of injury to personnel, and significantly improves the high-quality feel and safety of the product. In addition, by transferring the structural function of accommodating the wheels to an independent support member and simply drilling regular through-holes in the car body, the need for complex contour milling of the car body is greatly reduced, and surface defects such as burrs, chipping, and tears caused by wood anisotropy and variations in the cutting process are fundamentally reduced, improving the yield rate and product consistency. The wooden cart of this invention effectively solves the technical problem of conventional wooden carts, which is the difficulty of effectively achieving both stacking stability and high-quality appearance.

[0019] The specification drawings that form a part of this application are used to provide a further understanding of the present invention, and the exemplary embodiments of the present invention and their descriptions are used to interpret the present invention and do not constitute undue limitations on the present invention. [Brief explanation of the drawings]

[0020] [Figure 1] 1 is a schematic structural diagram of a wooden trolley according to the present invention from a first perspective. [Figure 2] FIG. 2 is a schematic structural diagram of the wooden trolley according to the present invention from a second perspective. [Figure 3] FIG. 3 is a structural diagram of part A in FIG. 2. [Figure 4] 1 is a schematic diagram of the structure of the body of a wooden bogie according to the present invention. [Figure 5] 2 is a schematic diagram showing the connection between the support member and the stopper in the wooden cart according to the present invention; [Figure 6] This is a schematic diagram of the structure of two wooden carts stacked together according to this invention. DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to allow those skilled in the art to better understand the aspects of the present application, the following provides a clear and complete description of the embodiments of the present application, accompanied by the drawings in the embodiments of the present application, but it is clear that the described embodiments are only some of the embodiments of the present application, and do not represent all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without any creative work shall fall within the scope of protection of the present application.

[0022] 1 to 6. According to an embodiment of the present invention, a wooden dolly is provided, which includes a car body 1 and four support members 3, and four mounting holes 2 are drilled at intervals along the edge of the mounting surface 11 of the car body 1 in the mounting surface 11, and each mounting hole 2 is drilled along the height direction of the car body 1, and each support member 3 and each mounting hole 2 are provided in one-to-one correspondence, and each support member 3 is fitted into the corresponding mounting hole 2, and the upper end surface of each support member 3 and the mounting surface 11 of the car body 1 are provided flush with each other, and the support members 3 are provided with a mounting hole 2 on the upper end surface of the car body 1. The storage grooves 30 are opened to accommodate at least some of the wheels 64 of the wooden bogie located above the car body 1, and there are at least two storage grooves 30, and the extension direction of one of the at least two storage grooves 30 forms a predetermined angle with the extension direction of the other of the at least two storage grooves 30, and the predetermined angle is greater than 0° and not more than 90°, so that each storage groove 30 can accommodate wheels 64 arranged at different angles on the wooden bogie located above the car body 1.

[0023] As can be seen from the above, the wooden dolly according to the present invention includes a body 1 and four support members 3. The body 1 is used to place materials on it. Four mounting holes 2 are drilled at intervals along the edge of the mounting surface 11 on the mounting surface 11, and each mounting hole 2 is drilled along the height direction of the body 1. Each support member 3 corresponds to each mounting hole 2 one-to-one. Each support member 3 is fitted into its corresponding mounting hole 2, and the upper end surface of each support member 3 is flush with the mounting surface 11 of the body 1. Each support member 3 has a storage groove 30, and the opening of the storage groove 30 is The storage grooves 30 are located in the car body 1, and are used to store at least some of the wheels 64 of the wooden dollies located above the car body 1. There are at least two storage grooves 30, and the extension direction of one of the at least two storage grooves 30 and the extension direction of the other of the at least two storage grooves 30 form a predetermined angle, and the predetermined angle is greater than 0° and less than or equal to 90°. With this design, each storage groove 30 can accommodate wheels 64 located at different angles on the wooden dollies located above the car body 1, thereby improving stability and flexibility when stacked.

[0024] As can be seen from the above, the support member 3 is provided with at least two receiving grooves 30, and the extending directions of these receiving grooves 30 form a predetermined angle, which is greater than 0° and less than 90°. Furthermore, it can accommodate wheels arranged at different angles (e.g., casters arranged vertically, horizontally, or diagonally) on the wooden cart above, significantly improving versatility and adaptability when stacking or connecting wooden carts and effectively avoiding the problem of inconsistent wheel orientation resulting in instable stacking. Furthermore, multiple support members 3 with receiving grooves 30 are provided on the edge of the loading surface 11, allowing multiple wooden carts to be stacked stably and accurately one above the other, suitable for warehouse storage, transportation, and other scenarios, improving space utilization and logistics efficiency. In addition, multiple receiving grooves with different extension directions are provided, which allows for different angle crossing arrangements (for example, one aligned vertically and the other aligned horizontally) when two adjacent wooden carts are stacked one above the other, thereby increasing the diversity of the distribution of contact areas, improving the rollover resistance of the entire stacking structure, effectively preventing tilting or tipping during stacking, and significantly enhancing stacking stability.In addition, the support members 3 are inserted into the corresponding mounting holes 2, and their upper ends are flush with the mounting surface 11, forming a continuous, flat surface, which eliminates the need for exposed grooves, steps, or other complex limiting structures on the mounting surface 11 of the car body 1, thereby effectively avoiding the rough edges of such structures that could affect the appearance of the product or the risk of injury to personnel, and significantly improving the high-quality feel and safety of the product. Furthermore, by transferring the structural function of accommodating the wheels to an independent support member 3 and simply drilling regular through-holes 2 in the car body 1, the need for complex contour milling on the car body 1 is greatly reduced, fundamentally reducing surface defects such as burrs, chipping, and tears caused by wood anisotropy and variations in the cutting process, thereby improving the yield rate and product consistency. The wooden cart of this invention effectively solves the technical problem of conventional wooden carts, which is the difficulty of effectively achieving both stacking stability and high-quality appearance.

[0025] Specifically, as shown in Figures 1 and 5, two mutually communicating storage grooves 30 are formed in the support member 3, one of the two storage grooves 30 extending along the longitudinal direction of the vehicle body 1, and the other of the two storage grooves 30 extending along the width direction of the vehicle body 1, so that the two storage grooves 30 are arranged perpendicular to each other at 90°.

[0026] The vertically arranged double grooves of this structure can accommodate wheels arranged vertically or horizontally. Whether the upper wooden dolly is stacked lengthwise or rotated 90 degrees and then stacked widthwise, its wheels can fit seamlessly into the corresponding grooves. This eliminates the need for a specific orientation for the wooden dolly, greatly improving the stacking flexibility and adaptability of many equipment during warehousing and transportation. Furthermore, when stacking multiple layers, the wooden dollies on adjacent two layers can be arranged in a crosswise fashion. For example, the four wheels of the lower wooden dolly are arranged vertically, and the four wheels of the upper wooden dolly are arranged horizontally. This arrangement effectively prevents tilting and tipping during stacking and significantly improves the overall stability of the stack.

[0027] As shown in FIG. 1, the direction indicated by arrow B is the longitudinal direction of the vehicle body 1, and the direction indicated by arrow C is the width direction of the vehicle body 1.

[0028] Specifically, as shown in FIGS. 1 and 5, the bottom wall of the accommodation groove 30 extends along a predetermined arc-shaped locus so as to fit the outer contour of the wheel 64.

[0029] The above-described structural configuration allows the bottom wall of the receiving groove 30 to extend along a predetermined arc-shaped path and conform to the outer contour of the wheel 64, significantly improving the fit and positioning accuracy of the wheel 64 when it is inserted, effectively preventing instability due to shaking or shifting during stacking, and providing the receiving groove 30 with excellent guiding capabilities—even if the wheel 64 is slightly misaligned initially, it can automatically slide into the correct position under the guidance of the arc-shaped bottom wall, thereby simplifying operation and improving assembly efficiency. The arc-shaped structure also increases the contact area between the wheel 64 and the groove bottom, resulting in more uniform load distribution and reduced local wear, extending the service life of the support member and wheel 64 and avoiding safety hazards caused by sharp edges, further improving product safety, durability, and the overall premium feel.

[0030] Specifically, as shown in Figures 1 and 5, the support member 3 has a first receiving portion 31 and a second receiving portion 32 connected to each other, the first receiving portion 31 extending along the longitudinal direction of the vehicle body 1, and the second receiving portion 32 extending along the width direction of the vehicle body 1, and one accommodating groove 30 is provided in each of the first receiving portion 31 and the second receiving portion 32.

[0031] With the above-mentioned structure, the support member 3 has a first receiving portion 31 and a second receiving portion 32 connected to each other, which extend along the length and width of the car body 1 respectively, and each is provided with a receiving groove 30. This structure not only realizes the bidirectional compatibility of the wheels 64 arranged in the longitudinal and transverse directions, but also significantly improves the adaptability when stacking or connecting wooden carts, and even allows adjacent wooden carts to be stacked in an orthogonal crossing manner.

[0032] Optionally, the support member 3 adopts an L-shaped structural design, and the first receiving portion 31 and the second receiving portion 32 are joined at the intersection in a right-angle connection manner. The two receiving grooves 30 are naturally connected at the corner of the L-shape, thereby allowing the penetration.

[0033] Specifically, as shown in Figures 2 to 5, the car body 1 has an attachment surface 12 opposite to the support surface 11, and limit grooves 4 are provided on the attachment surface 12 corresponding to the openings of each attachment hole 2, and the limit grooves 4 are provided around the openings to form a continuous ring structure and form a step structure with the corresponding attachment holes 2, and the wooden trolley includes a plurality of stoppers 5 provided at intervals on the side walls of the support member 3 along the edge of the support member 3 and each located at the bottom of the support member 3, and when the support member 3 is inserted into the corresponding attachment hole 2 from the attachment surface 12, each stopper 5 is fitted into the corresponding limit groove 4.

[0034] With this structure, the mounting surface 12 of the car body 1 is provided with limit grooves 4 surrounding the openings of each mounting hole 2, corresponding to the openings of the holes. A number of stoppers 5 are spaced apart 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 stopper 5 is fitted into the corresponding limit groove 4, forming a reliable stepped limit structure. This design not only significantly improves the stability and convenience of assembly, but also ensures that the engagement between the limit grooves 4 and the stoppers 5 ensures accurate positioning of the support member 3, ensuring that its upper end surface is precisely flush with the mounting surface 11 of the car body 1. It also simplifies the manufacturing and assembly process. Furthermore, the continuous, annular limit groove 4 structure uniformly bears force and effectively distributes local stress concentrations, further enhancing the structural strength and durability of the connection, thereby achieving a balance between functionality, reliability, and production efficiency.

[0035] The above statement that "each stopper 5 is fitted into the corresponding limit groove 4" means that each stopper 5 provided on the side wall of each support member 3 is fitted into the limit groove 4 corresponding to each support member 3.

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

[0037] Furthermore, when each stopper 5 is fitted into the limit groove 4 provided corresponding to the mounting hole 2, the stopper 5 and the corresponding limit groove 4 form a stopper limit engagement, thereby effectively preventing the support member 3 from coming loose or slipping out in the axial direction due to vibration or load during use, and ensuring its mounting stability and structural reliability.

[0038] Optionally, when assembling the support member 3 to the vehicle body 1, the support member 3 is inserted in the direction from the bottom (i.e., the mounting surface 12) to the top (i.e., the mounting surface 11) of the vehicle body 1, so that the stopper 5 can be fitted into the corresponding limit groove 4 and the upper end surface of the support member 3 is ensured to be flush with the mounting surface 11.

[0039] Specifically, as shown in Figure 2, the car body 1 has a mounting surface 12 opposite to the mounting surface 11, and the wooden trolley further includes four caster components 6, each of which is attached to the mounting surface 12, is provided in one-to-one correspondence with each mounting hole 2, and is located below the corresponding mounting hole 2.

[0040] With the above-mentioned structural installation, the four caster components 6 are attached to the mounting surface 12 of the car body 1, and correspond one-to-one with the four mounting holes 2, and are located directly below each mounting hole 2. This not only achieves accurate alignment in the spatial layout of the running means at the bottom of the car body and the support structure at the top, but also favors the modular design and assembly of the overall structure. Furthermore, when multiple wooden carts are stacked, it can ensure that each wheel 64 of the upper cart fits into the corresponding receiving groove 30 in the cart support member 3 below. The installation of the caster components 6 also makes the wooden cart more flexible and stable during steering and pushing, significantly improving the convenience of operation and practical use of the product.

[0041] Specifically, as shown in Figures 2 and 3, the caster component 6 includes a support plate 61 attached to the mounting surface 12, positioned below the corresponding mounting hole 2, and for sealing at least a portion of the hole opening of the mounting surface 12, a carrier 62 rotatably attached to the support plate 61 via a steering bearing 63 and positioned at the bottom of the support plate 61, and a wheel 64 attached to the carrier 62 via a wheel axle 65 and rotatably attached to the carrier 62 around the wheel axle 65.

[0042] With this structural installation, the support plate 61 of the caster component 6 is attached to the mounting surface 12 of the vehicle body 1 and is located below the corresponding mounting hole 2, which can partially or completely seal the hole opening on the mounting surface 12. This design not only effectively shields the opening formed at the bottom of the through-type mounting hole 2, improves the cleanliness of the product's appearance, and prevents the intrusion of foreign matter. More importantly, the support plate 61 also functions as an axial stop structure for the support member 3. Specifically, after the support member 3 is inserted into the mounting hole 2 from bottom to top, the support plate 61 forms an effective stop for the support member 3 and its stopper 5, thereby preventing the support member 3 from slipping downward along the height of the vehicle body 1. At the same time, the carrier 62 is rotatably mounted at the bottom of the support plate 61 via a steering bearing 63, and the wheel 64 flexibly rotates around the wheel axle 65, ensuring smooth pushing and steering of the wooden dolly. This design cleverly integrates the triple functions of travel, structural sealing, and support member retention, significantly improving the compactness of the overall machine structure, assembly reliability, and operational safety without adding additional parts.

[0043] "Support plate 61 located below corresponding mounting holes 2 and for sealing at least a portion of the hole opening in the mounting surface 12" is understood to mean that the support plate 61 is located below the corresponding mounting holes 2, each mounting hole 2 forms a corresponding hole opening on the mounting surface 12, and the support plate 61 is used to seal at least a portion of the corresponding hole opening.

[0044] Furthermore, the support plate 61 may be understood as shielding at least a portion of the corresponding limit groove 4 .

[0045] Specifically, as shown in Figures 2 and 3, the wooden trolley further includes a plurality of fasteners 7, and the support plate 61 is attached to the mounting surface 12 via a plurality of fasteners 7 arranged at intervals.

[0046] With this structural installation, the support plate 61 is firmly connected to the mounting surface 12 via a plurality of spaced-apart fasteners 7, which not only significantly improves the overall mounting strength and vibration resistance of the caster component 6, but also effectively distributes the load and prevents loosening or structural failure caused by localized stress concentration. Furthermore, the fastening connection method is convenient for assembly and maintenance, ensures a reliable retention function for the support member 3, and further enhances the stability, durability, and safety of the entire machine structure.

[0047] Optionally, the fastener 7 is a bolt.

[0048] Specifically, as shown in Figures 1, 4 and 6, two operating holes 8 are provided in the vehicle body 1, and each operating hole 8 is provided at an interval and located between two adjacent mounting holes 2.

[0049] The above structural installation provides two spaced apart operating holes 8 on the car body 1, each located between two adjacent mounting holes 2. This not only provides an operating area that facilitates gripping and biasing during manual assembly and stacking, but also allows workers to easily fine-tune the alignment of the support members 3, wheels 64, and receiving grooves 30 in real time, ensuring that the wheels 64 of the upper wooden cart are accurately fitted into the corresponding receiving grooves 30 of the lower wooden cart. This layout also makes good use of the structural gaps between the mounting holes 2, avoiding a reduction in the overall strength of the car body due to excess openings, and significantly improves assembly efficiency, stacking accuracy, and safety during use without compromising loading performance.

[0050] It should be noted that terms such as "first," "second," and the like in the specification, claims, and drawings of this application are intended to distinguish between similar objects and not to describe a particular order or priority. It should be understood that objects identified by such terms are interchangeable where appropriate. This allows the embodiments of the application described herein to be performed in an order other than that illustrated or described herein. Furthermore, the terms "comprise," "have," and variations thereof are intended to be non-exclusive inclusive. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the explicitly recited steps or units, but may also include other steps or units that are inherent to the process, method, system, product, or apparatus that are not explicitly recited.

[0051] Alternatively, the specific examples of this embodiment may refer to the examples described in the above embodiments, and this embodiment will not be described here.

[0052] The numbers of the above-mentioned examples of the present application are for illustrative purposes only and do not represent the superiority or inferiority of the examples.

[0053] In the above-mentioned embodiments of the present application, emphasis is placed on the description of each embodiment, and some embodiments do not have detailed parts, and reference can be made to the relevant description of other embodiments.

[0054] It should be pointed out that the above are only preferred embodiments of the present application, and some improvements and refinements can be made by those skilled in the art without departing from the principle of the present application, and these improvements and refinements should also be considered as the protection scope of the present application. [Explanation of symbols]

[0055] 1. Body 11. Placement surface 12. Mounting surface 2. Mounting holes 3. Support member 30. Receiving groove 31. First receiving part 32, second receiving part 4. Limit groove 5. Stopper 6. Caster components 61, support plate 62. Career 63. Steering bearing 64, wheels 65, wheel axle 7. Fasteners 8, operation hole.

Claims

1. A wooden cart, The vehicle includes a body (1) and four support members (3), Four mounting holes (2) are formed at intervals along the edge of the mounting surface (11) of the vehicle body (1), and each mounting hole (2) is drilled along the height direction of the vehicle body (1); The support members (3) and the mounting holes (2) are provided in a one-to-one correspondence, the support members (3) are fitted into the corresponding mounting holes (2), and the upper end surfaces of the support members (3) and the mounting surface (11) of the car body (1) are provided flush with each other, and the support members (3) are provided with accommodation grooves (30) for accommodating at least a part of the wheels (64) of a bogie located above the car body (1), The wooden bogie is characterized in that there are at least two storage grooves (30), and the extension direction of one of the at least two storage grooves (30) forms a predetermined angle with the extension direction of the other of the at least two storage grooves (30), the predetermined angle being greater than 0° and not greater than 90°, and each storage groove (30) is adapted to accommodate wheels (64) arranged at different angles on the wooden bogie located above the car body (1).

2. The wooden bogie described in claim 1, characterized in that two storage grooves (30) that communicate with each other are opened in the support member (3), one of the two storage grooves (30) extends along the longitudinal direction of the car body (1), and the other of the two storage grooves (30) extends along the width direction of the car body (1).

3. 3. The wooden trolley according to claim 1, wherein the bottom wall of the accommodation groove (30) extends along a predetermined arcuate trajectory so as to fit the outer contour of the wheel (64).

4. The wooden trolley of claim 2, characterized in that the support member (3) has a first receiving portion (31) and a second receiving portion (32) connected to each other, the first receiving portion (31) extending along the longitudinal direction of the car body (1), and the second receiving portion (32) extending along the width direction of the car body (1), and each of the first receiving portion (31) and the second receiving portion (32) is provided with one of the storage grooves (30).

5. The car body (1) has a mounting surface (12) provided opposite the placing surface (11), and limit grooves (4) are provided on the mounting surface (12) corresponding to the openings of the mounting holes (2), and the limit grooves (4) are provided around the openings to form a continuous ring structure and form a step structure with the corresponding mounting holes (2). The wooden cart includes a plurality of stoppers (5) provided at intervals on the side walls of the support member (3) along the edge of the support member (3) and each located at the bottom of the support member (3). The wooden dolly according to claim 1, characterized in that when the support member (3) is inserted into the corresponding mounting hole (2) from the mounting surface (12), each stopper (5) is fitted into the corresponding limit groove (4).

6. The vehicle body (1) has a mounting surface (12) provided opposite the placement surface (11), The wooden cart is The wooden dolly according to claim 1, further comprising four caster components (6) attached to the mounting surface (12), each in one-to-one correspondence with the mounting holes (2), and positioned below the corresponding mounting holes (2).

7. The caster component (6) comprises: a support plate (61) attached to the mounting surface (12), positioned below the corresponding mounting hole (2), and configured to seal at least a portion of the hole opening of the mounting surface (12); a carrier (62) rotatably mounted on the support plate (61) via a steering bearing (63) and positioned at the bottom of the support plate (61); The wooden dolly according to claim 6, further comprising a wheel (64) attached to the carrier (62) via a wheel axle (65) and rotatably arranged around the wheel axle (65) relative to the carrier (62).

8. The wooden dolly according to claim 7, characterized in that the wooden dolly further comprises a plurality of fasteners (7), and the support plate (61) is attached to the mounting surface (12) via a plurality of the fasteners (7) arranged at intervals.

9. The wooden trolley according to claim 1, characterized in that two operating holes (8) are provided in the car body (1), each of the operating holes (8) being spaced apart and positioned between two adjacent mounting holes (2).

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