Protective structure and pallet truck with same

Abstract

The invention provides a protection structure and a pallet truck with the same, the protection structure is used for protecting wheels so as to form a protection space for protecting feet of an operator and other workers through the protection structure, the wheels are rotatably arranged on a steering structure, and the protection structure comprises a welding structure and a supporting structure, the welding structure is arranged on the steering structure and comprises at least two first mounting parts; the at least two protection structures are respectively arranged on the two first mounting parts, an accommodating space is formed between each protection structure and the corresponding first mounting part, and at least part of the wheel is arranged in the accommodating space, so that when the wheel steers along with the steering structure, the protection structures steer along with the wheel. The problem that in the prior art, a protection structure of a steering wheel of a tray truck cannot provide all-around protection in different driving directions and steering angles is solved.

Description

Technical Field

[0001] This invention relates to the field of industrial equipment safety protection technology, and more specifically, to a protective structure and a pallet transport vehicle having the same. Background Technology

[0002] Pallet trucks are widely used in the logistics and warehousing industry due to their portability and efficiency. However, operators and nearby personnel face a high risk of their feet being run over by the steering wheels when the vehicle is in motion, especially in confined spaces or during sharp turns. Current protective measures, such as guards and shields, often provide limited protection in specific directions and have blind spots at certain angles, reducing their effectiveness and safety.

[0003] While commercially available protective structures attempt to surround steering wheels, their protective effectiveness varies depending on the direction of travel and steering angle. Their complex structures and difficulty in disassembly and assembly increase the difficulty and cost of maintenance. Furthermore, the inconvenience of disassembly and assembly may lead to their being overlooked by operators, further increasing workplace safety hazards. Summary of the Invention

[0004] The main objective of this invention is to provide a protective structure and a pallet truck having the same, so as to solve the problem that the protective structure of the steering wheels of the existing pallet truck cannot provide all-round protection in different driving directions and steering angles, that is, there are blind spots and weak areas.

[0005] To achieve the above objectives, according to one aspect of the present invention, a protective structure is provided for protecting wheels, thereby forming a protective space for protecting the feet of operators and other workers, wherein the wheels are rotatably mounted on a steering structure, and the protective structure includes:

[0006] A welded structure is provided on the steering structure, and the welded structure includes at least two first mounting parts;

[0007] At least two protective structures are respectively disposed on two first mounting parts, and each protective structure and its corresponding first mounting part form a receiving space. At least a portion of the wheel is disposed in the receiving space so that when the wheel turns with the steering structure, the protective structure turns with the wheel.

[0008] Furthermore, the welded structure also includes at least two first connecting portions, which are disposed between at least two first mounting portions, wherein the extending direction of the at least two first connecting portions is perpendicular to the extending direction of the at least two first mounting portions.

[0009] Furthermore, each first mounting part has a first mounting structure on both sides, and each first mounting part has a second mounting structure corresponding to the first mounting structure, so that the first mounting part can be mounted on the corresponding first mounting part through the first mounting structure and the corresponding second mounting structure.

[0010] Furthermore, the protective structure includes a first protective part, a second protective part, and a third protective part, wherein the first protective part and the third protective part are arranged parallel to each other in their extending directions, and the second protective part is arranged perpendicular to the extending direction of the first protective part.

[0011] Furthermore, the first mounting part has a mounting flange on its first side, and at least one first mounting position is provided on the mounting flange. The first protective part has at least one second mounting position at a position corresponding to the at least one first mounting position. The protective structure also includes a first locking member that can be inserted into the at least one second mounting position to fix the first protective part to the first mounting part by means of the first locking member.

[0012] Furthermore, a third mounting structure is provided on the second side of the first mounting part, and a fourth mounting structure is provided on the third protective part at a position corresponding to the third mounting structure, so that the third protective part can be fixed on the first mounting part by the snap-fit ​​cooperation between the third mounting structure and the fourth mounting structure.

[0013] Furthermore, the steering structure includes a steering rod and a fixed shaft disposed on the steering rod. At least a portion of the fixed shaft is disposed within a welded structure. Both ends of the fixed shaft extend from corresponding first mounting portions into a receiving space. A wheel located within the receiving space is rotatably disposed at the end of the fixed shaft.

[0014] Furthermore, each of the first mounting portions is provided with a receiving hole, and both ends of the fixed shaft extend into the receiving space through the receiving hole; and / or, each of the second protective portions of the protective structure is provided with a clearance position to avoid at least a portion of the wheel by means of the clearance position.

[0015] Furthermore, each of the first connecting parts is provided with a first locking hole, and the fixed shaft of the steering structure is provided with a second locking hole at a position corresponding to the first locking hole. The protective structure also includes a second locking member that can be inserted into the first locking hole, so as to fix the fixed shaft to the welding structure by means of the second locking member.

[0016] According to another aspect of the present invention, a pallet transport vehicle is provided, including a protective member disposed on the wheels, the protective member being the aforementioned protective structure.

[0017] By applying the technical solution of this invention, the protective structure always moves synchronously with the wheels when the pallet truck is in operation, regardless of how the wheels rotate or whether the pallet truck is moving forward or backward. This eliminates blind spots and provides 360-degree all-round protection for the operator's feet and the feet of other personnel in the operating area, significantly reducing the risk of foot injuries.

[0018] By combining the welded structure with the steering structure, the protective structure can be efficiently arranged in a limited space without adding extra volume burden, thus maintaining the portability and flexibility of the pallet truck.

[0019] The introduction of welded structures and the design of the first mounting section enable the entire protective structure to maintain a more stable posture when subjected to external impacts, effectively preventing structural deformation or component detachment, and improving the reliability and safety of long-term use.

[0020] Because the protective structure is closely connected to the wheel, it also indirectly protects the wheel. For example, when an external object impacts the wheel, the protective structure can prevent direct damage to the wheel, extending its service life. Attached Figure Description

[0021] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0022] Figure 1 A schematic diagram showing a protective structure provided on a pallet transporter according to an embodiment of this application is shown;

[0023] Figure 2 A schematic diagram of the protective structure according to an embodiment of this application is shown;

[0024] Figure 3 An exploded view of the protective structure according to an embodiment of this application is shown;

[0025] Figure 4 A schematic diagram of the protective structure of this application being mounted on a wheel is shown.

[0026] The above figures include the following reference numerals:

[0027] 1. Wheels; 2. Protective structure;

[0028] 21. Welded structure; 211. First mounting part; 212. First connecting part; 213. First mounting structure; 214. Second mounting structure; 215. Mounting flange; 216. First mounting position; 217. Third mounting structure; 218. Receiving hole; 219. First locking hole;

[0029] 22. Protective structure; 221. First protective part; 222. Second protective part; 223. Third protective part; 224. Second mounting position; 225. Fourth mounting structure; 226. Clearance position;

[0030] 23. First locking element;

[0031] 24. Second locking element;

[0032] 3. Fixed shaft. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Pallet trucks are widely used in the logistics and warehousing industry due to their portability and efficiency. However, operators and nearby personnel face a high risk of their feet being run over by the steering wheels when the vehicle is in motion, especially in confined spaces or during sharp turns. Current protective measures, such as guards and shields, often provide limited protection in specific directions and have blind spots at certain angles, reducing their effectiveness and safety.

[0035] While commercially available protective structures attempt to surround steering wheels, their protective effectiveness varies depending on the direction of travel and steering angle. Their complex structures and difficulty in disassembly and assembly increase the difficulty and cost of maintenance. Furthermore, the inconvenience of disassembly and assembly may lead to their being overlooked by operators, further increasing workplace safety hazards.

[0036] Therefore, the main objective is to provide a protective structure and a pallet truck having the same structure, in order to solve the problem that the protective structure of the steering wheels of the existing pallet truck cannot provide all-round protection in different driving directions and steering angles, i.e., there are blind spots and weak areas.

[0037] Example 1

[0038] like Figures 1 to 4 As shown, this application first provides a protective structure for protecting the wheel 1, so as to form a protective space for protecting the feet of the operator and other workers. The wheel 1 is rotatably mounted on a steering structure. The protective structure 2 includes:

[0039] The welding structure 21 is disposed on the steering structure and includes at least two first mounting parts 211.

[0040] At least two protective structures 22 are respectively disposed on two first mounting portions 211, and each protective structure 22 and its corresponding first mounting portion 211 form a receiving space. At least a portion of the wheel 1 is disposed in the receiving space so that when the wheel 1 turns with the steering structure, the protective structure 22 turns with the wheel 1.

[0041] The protective structure 2, through the arrangement of the welded structure 21 and at least two protective structures 22, forms a dynamic protective frame that rotates with the wheel 1. Regardless of the steering mechanism's movement, the protective space always surrounds the wheel 1, ensuring that the operator's feet and the feet of surrounding personnel are not crushed, while protecting the wheel 1 from external impacts, significantly improving workplace safety and equipment durability.

[0042] Furthermore, the welding structure 21 also includes at least two first connecting portions 212, which are disposed between at least two first mounting portions 211. The extending directions of the at least two first connecting portions 212 are set at an angle to the extending directions of the at least two first mounting portions 211. Specifically, in this embodiment, the angle is a right angle.

[0043] The first connecting part 212 increases the mechanical strength and stability of the welded structure 21. The first connecting part 212 is perpendicular to the extending direction of the first mounting part 211, which can disperse and resist the force during turning, thereby reducing the possibility of deformation of the welded structure 21. At the same time, the first connecting part 212 can also optimize the spatial layout, ensuring that the protective structure 22 effectively covers all rotational directions of the wheel 1 in a compact space, enhancing the protective effect.

[0044] Furthermore, each of the first connecting portions 212 is provided with a first mounting structure 213 on both sides, and each of the first mounting portions 211 is provided with a second mounting structure 214 corresponding to the first mounting structure 213, so that the first connecting portion 212 is mounted on the corresponding first mounting portion 211 through the first mounting structure 213 and the corresponding second mounting structure 214.

[0045] The combined use of the first mounting structure 213 and the second mounting structure 214 provides a precise component positioning and a stable installation method. This design ensures the accurate installation of the first connecting part 212, reduces the risk of misalignment or loosening of the first connecting part 212, thereby improving the overall integrity and long-term reliability of the structure. At the same time, this connection method also simplifies the assembly process and reduces production costs.

[0046] Furthermore, the protective structure 22 includes a first protective part 221, a second protective part 222 and a third protective part 223, wherein the first protective part 221 and the third protective part 223 are arranged parallel to each other in their extending directions, and the second protective part 222 is arranged perpendicular to the extending direction of the first protective part 221.

[0047] The combined design of the first protective part 221, the second protective part 222, and the third protective part 223 forms a three-dimensional protective frame surrounding the wheel 1. This arrangement not only covers the front and sides of the wheel 1, but also enhances the protection of the space above the wheel 1 through the vertical extension of the second protective part 222, reducing the possibility of operator foot injury, while providing comprehensive protection for the wheel 1 and reducing damage to the wheel 1 caused by external factors.

[0048] Furthermore, the first mounting part 211 has a mounting flange 215 on its first side, and at least one first mounting position 216 is provided on the mounting flange 215. The first protective part 221 has at least one second mounting position 224 at a position corresponding to the at least one first mounting position 216. The protective structure 22 also includes a first locking member 23 that can be inserted into the at least one second mounting position 224 to fix the first protective part 221 to the first mounting part 211 by means of the first locking member 23.

[0049] The corresponding arrangement of the first mounting position 216 and the second mounting position 224, along with the use of the first locking member 23, provides a simple yet robust connection method, ensuring a secure connection between the first protective part 221 and the first mounting part 211. This design reduces the complexity and operational difficulty of the connection process, while increasing the contact area between components, improving the strength and stability of the connection, and ensuring the reliable fixation of the first protective part 221 during long-term use and frequent turning.

[0050] Furthermore, a third mounting structure 217 is provided on the second side of the first mounting part 211, and a fourth mounting structure 225 is provided on the third protective part 223 at a position corresponding to the third mounting structure 217, so that the third protective part 223 is fixed on the first mounting part 211 by the snap-fit ​​cooperation between the third mounting structure 217 and the fourth mounting structure 225.

[0051] Specifically, such as Figure 3 As shown, in this embodiment, the third mounting structure 217 is a snap-fit ​​groove, and the fourth mounting structure 225 is a snap-fit ​​protrusion, which can... Figure 3As can be clearly seen, the fourth mounting structure 225 includes a main body and a protrusion provided on the main body. The protrusion protrudes from the main body. The third mounting structure 217 includes a first groove that cooperates with the main body and a second groove that cooperates with the protrusion. During installation, the third protective part 223 is aligned with the first mounting part 211 to complete the installation.

[0052] The snap-fit ​​connection between the third mounting structure 217 and the fourth mounting structure 225 provides a tool-free, quick-assembly / disassembly mechanism between the third protective part 223 and the first mounting part 211. This snap-fit ​​design not only simplifies the assembly process and improves efficiency, but also allows for quick replacement or maintenance of the third protective part 223 when necessary, without disassembling the entire welded structure 21. This reduces maintenance costs and downtime, and enhances the convenience of maintenance and the replaceability of components.

[0053] Furthermore, the steering structure includes a steering rod and a fixed shaft 3 disposed on the steering rod. At least a portion of the fixed shaft 3 is disposed within the welded structure 21. Both ends of the fixed shaft 3 extend from the corresponding first mounting portion 211 into the receiving space. The wheel 1, which is located in the receiving space, is rotatably disposed at the end of the fixed shaft 3.

[0054] The fixed shaft 3, with its end extending into the receiving space and connecting to the wheel 1, ensures a stable connection and synchronous rotation between the wheel 1 and the welded structure 21. This arrangement not only provides support and guidance for the wheel 1 but also ensures its free steering in any direction. Furthermore, the tight integration of the protective structure 22 with the steering structure further enhances the safety protection effect.

[0055] Furthermore, each of the first mounting portions 211 is provided with a receiving hole 218, and both ends of the fixed shaft 3 extend into the receiving space from the receiving hole 218; and / or, each of the second protective portions 222 of the protective structure 22 is provided with a clearance position 226, so as to avoid at least part of the wheel 1 by passing through the clearance position 226.

[0056] The inclusion hole 218 allows the fixed shaft 3 to pass smoothly through the welded structure 21, ensuring precise alignment and a secure connection between the wheel 1 and the steering structure. The clearance 226 design avoids direct contact between the wheel 1 and the protective structure 22, ensuring the free rotation of the wheel 1 while providing sufficient space for the protective structure 22 to accommodate changes in the size of the wheel 1, enhancing the adaptability and flexibility of the structure.

[0057] Furthermore, each of the first connecting parts 212 is provided with a first locking hole 219, and the fixed shaft 3 of the steering structure is provided with a second locking hole at a position corresponding to the first locking hole 219. The protective structure 2 also includes a second locking member 24 that can be inserted into the first locking hole 219, so as to fix the fixed shaft 3 to the welding structure 21 by means of the second locking member 24.

[0058] The combined use of the first locking hole 219, the second locking hole, and the second locking element 24 provides a mechanism for securely fixing the fixed shaft 3 to the welded structure 21. This design ensures the stable positioning of the fixed shaft 3, maintaining its precise connection with the wheel 1 even under high-intensity use, improving steering accuracy and overall structural stability, and reducing safety risks caused by loose connections.

[0059] Example 2

[0060] This application also provides a pallet transport vehicle, including a protective component disposed on the wheel 1, the protective component being the aforementioned protective structure.

[0061] Applying the aforementioned protective structure to pallet trucks significantly enhances their safety performance. The protective components not only provide comprehensive protection for the operator's feet but also optimize the pallet truck's maintenance process, improving equipment durability and operational efficiency. This design reflects a deep understanding of the actual needs of the logistics and warehousing industries, effectively enhancing workplace safety and the efficiency of pallet truck operations through technological innovation.

[0062] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0063] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0064] In the description of this invention, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is generally based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this invention; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0065] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0066] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A protective structure, characterized in that, The application discloses a protection structure (2) for protecting wheels (1) and forming a protection space for protecting feet of operators and other workers, wherein the wheels (1) are rotatably arranged on a steering structure, the protection structure (2) comprises: a welding structure (21) arranged on the steering structure, the welding structure (21) comprising at least two first mounting portions (211); at least two protection structures (22) arranged on the two first mounting portions (211) respectively, each protection structure (22) and the corresponding first mounting portion (211) forming an accommodation space, at least part of the wheels (1) being arranged in the accommodation space, so that the welding structure (21) and the protection structure (22) rotate with the wheels (1) when the wheels (1) rotate with the steering structure.

2. The containment structure of claim 1, wherein, The welding structure (21) further comprises at least two first connecting portions (212) arranged between the at least two first mounting portions (211), wherein the extension directions of the at least two first connecting portions (212) are arranged at an angle with the extension directions of the at least two first mounting portions (211).

3. The containment structure of claim 2, wherein, Each first connecting portion (212) is provided with a first mounting structure (213) on both sides, and each first mounting portion (211) is provided with a second mounting structure (214) corresponding to the first mounting structure (213), so that the first connecting portion (212) is mounted on the corresponding first mounting portion (211) through the mounting cooperation of each first mounting structure (213) and the corresponding second mounting structure (214).

4. The containment structure of claim 2, wherein, The protection structure (22) comprises a first protection portion (221), a second protection portion (222) and a third protection portion (223), wherein the first protection portion (221) and the third protection portion (223) are arranged in parallel in the extension direction, and the extension direction of the second protection portion (222) is arranged perpendicularly to the extension direction of the first protection portion (221).

5. The containment structure of claim 4, wherein, A mounting folded edge (215) is arranged on the first side of the first mounting portion (211), the mounting folded edge (215) is provided with at least one first mounting position (216), the first protection portion (221) is provided with at least one second mounting position (224) at a position corresponding to the at least one first mounting position (216), and the protection structure (2) further comprises a first locking member (23) arranged in the at least one second mounting position (224) in a penetrating manner, so that the first protection portion (221) is fixed on the first mounting portion (211) through the first locking member (23).

6. The containment structure of claim 4, wherein, A third mounting structure (217) is provided on the second side of the first mounting part (211), and a fourth mounting structure (225) is provided on the third protective part (223) at a position corresponding to the third mounting structure (217), so that the third protective part (223) can be fixed on the first mounting part (211) by the installation cooperation of the third mounting structure (217) and the fourth mounting structure (225).

7. The containment structure of claim 1, wherein, The steering structure includes a steering rod and a fixed shaft (3) disposed on the steering rod. At least a portion of the fixed shaft (3) is disposed within the welded structure (21). Both ends of the fixed shaft (3) extend from the corresponding first mounting portion (211) into the receiving space. The wheel (1) located in the receiving space is rotatably disposed at the end of the fixed shaft (3).

8. The containment structure of claim 7, wherein, Each of the first mounting portions (211) is provided with a receiving hole (218), and both ends of the fixed shaft (3) extend into the receiving space from the receiving hole (218); and / or, each of the second protective portions (222) of the protective structure (22) is provided with a clearance position (226) to avoid at least a portion of the wheel (1) through the clearance position (226).

9. The containment structure of claim 2, wherein, Each of the first connecting parts (212) is provided with a first locking hole (219), and the fixed shaft (3) of the steering structure is provided with a second locking hole at a position corresponding to the first locking hole (219). The protective structure (2) also includes a second locking member (24) that can be inserted into the first locking hole (219) so as to fix the fixed shaft (3) on the welding structure (21) by the second locking member (24).

10. A pallet jack comprising a protection member arranged on a wheel (1), characterized in that The protective component is the protective structure as described in any one of claims 1 to 9.

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