Hand-pushed cart

Abstract

To provide a hand-pushed cart. The solution includes a limit baffle (1) rotatably connected to the edge of the platform (2). Rotating the limit baffle forward deploys it to restrict cargo on the platform from the edge, and rotating it in the reverse direction retracts it to flatten the platform, facilitating cargo transport. The limit baffle is rotatably attached to the edge of the platform. When rotated forward, the limit baffle retracts and becomes perpendicular to the platform, forming an effective peripheral limit, preventing cargo from scattering due to shaking during transport and ensuring that the cargo is placed stably and safely on the platform. Rotating the limit baffle in the reverse direction aligns its side parallel to and tightly against the platform, achieving more complete storage, preventing interference when transporting large-volume items, maintaining the maximum usable platform area, and improving platform space utilization.

Description

[Technical Field]

[0001] The present invention relates to the field of hand trucks, and more particularly to hand-pushed hand trucks. [Background technology]

[0002] Although conventional push carts are widely used in the transportation and handling of goods in industries such as logistics and warehousing, they have some design deficiencies that limit their utilization efficiency and convenience in actual operation.

[0003] First, most hand-operated carts lack effective limiting measures around the table, which can cause items to scatter during transport. Some carts are equipped with edge stoppers, but these are usually fixed in place or must be completely removed when not needed. This design occupies extra storage space when the stoppers are not in use, and the process of attaching and detaching the stoppers is time-consuming and labor-intensive, reducing transport efficiency.

[0004] Furthermore, the installation and removal of conventional trolley wheels often requires the use of tools, which not only makes the process complicated, but also makes it relatively inconvenient to replace wheels in an emergency, which in turn affects the use efficiency of the trolley.

[0005] As described above, conventional hand trucks have design deficiencies in terms of cargo limits, stop plate adjustment, and quick wheel attachment / detachment, which affect performance and convenience in practical applications. Summary of the Invention [Problem to be solved by the invention]

[0006] In response to the shortcomings of the prior art, a hand-pushed cart is proposed to solve the problems that in the background art, edge stop plates are usually fixed, and when the stop plates are not used, extra storage space is occupied, and the process of attaching and detaching the stop plates takes time and effort. [Means for solving the problem]

[0007] To achieve the above objectives, the present invention proposes and implements the following technology.

[0008] The hand-pushed cart includes a limit baffle rotatably connected to the edge of the cart surface, and the limit baffle is deployed by rotating in a forward direction to limit cargo on the surface of the cart from the edge, and is stored by rotating in a reverse direction to make the surface of the cart flat, thereby facilitating the transportation of cargo.

[0009] Furthermore, the limit baffle is rotated and extended above the table surface to realize deployment, and a relay groove for accommodating the limit baffle is opened in the table surface, and the inverted limit baffle is further accommodated to make the table surface flat.

[0010] Furthermore, the limit baffle is rotatably mounted in the relay groove via a rotation shaft, and one side of the interior of the relay groove is configured as a storage chamber that accommodates the limit baffle after inversion, and the rotation shaft is located within the storage chamber.

[0011] Furthermore, the other side of the interior of the relay groove is configured as a support chamber that communicates with the storage chamber, and the support chamber has a support rib, and the limit baffle rotates around the rotation axis and abuts against the support rib to achieve deployment.

[0012] Furthermore, bumps are provided on the wall surface of the storage chamber, and engagement holes are formed in the limit baffle. The limit baffle is rotated to engage the engagement holes with the bumps, thereby realizing positioning within the storage chamber.

[0013] Furthermore, the storage chamber is provided through the base surface, and the limit baffle has a convex shape, and when the limit baffle is in the stored state, its protruding portion extends below the base surface, making it easy to grip.

[0014] Furthermore, the limit baffle is located in the middle of the edge when deployed, and a plurality of limit baffles are provided, each located at the front and both left and right sides of the platform, and a foldable handle is provided on the rear side of the platform.

[0015] Furthermore, a mounting frame for attaching casters is provided on the bottom of the table, and an insertion port for inserting a caster connecting plate is provided on one side of the mounting frame.A locking assembly for limiting the connecting plate is also provided on the table.

[0016] Furthermore, a slide groove is further provided at the bottom of the base, and the lock assembly includes a lock body that is slidably connected within the slide groove. An elastic member is provided between the lock body and the slide groove, and the elastic member allows the lock body to extend outside the slide groove and further abut against the side edge of the connecting plate to achieve a limit.

[0017] Furthermore, the lock assembly further includes a hook provided on the lock body, and the hook is engaged with a limit board fixed to the inner wall of the slide groove and is used to further limit the lock body and prevent the lock body from coming off the slide groove. [Effects of the Invention]

[0018] Compared with the prior art, the overall advantages of the present invention are as follows:

[0019] In this application, the limit baffle is configured to be rotatably connected and attached to the edge of the platform, and when rotated in the forward direction, the limit baffle unfolds and becomes perpendicular to the platform surface, forming an effective peripheral limit, preventing cargo from scattering due to shaking during transportation and ensuring that the cargo is placed stably and safely on the dolly. When the limit baffle is rotated in the reverse direction, its side becomes parallel to and tightly attached to the platform surface, achieving more complete storage and preventing interference when transporting large-volume items, while maintaining the maximum usable area of ​​the platform and improving the utilization rate of the platform space. [Brief explanation of the drawings]

[0020] [Figure 1] 2 is a schematic diagram of the deployed structure of the limit baffle according to the embodiment of the present invention; FIG. [Figure 2] 1 is an exploded structural schematic diagram of an embodiment of the present invention; [Figure 3] FIG. 3 is a schematic structural diagram of part A in FIG. 2. [Figure 4] 3 is a schematic cross-sectional view of a relay groove according to an embodiment of the present invention; [Figure 5] FIG. 5 is a structural schematic diagram of part B in FIG. [Figure 6] 1 is a schematic diagram of a rotary shaft mounting structure according to an embodiment of the present invention; [Figure 7] FIG. 7 is a structural schematic diagram of part D in FIG. 6. [Figure 8] 3 is a schematic diagram of the base structure of the platform in the embodiment of the present invention when the handle is folded; FIG. [Figure 9] FIG. 9 is a structural schematic diagram of part C in FIG. 8. DETAILED DESCRIPTION OF THE INVENTION

[0021] The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings, but obviously, the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments, and all other embodiments that can be obtained by those skilled in the art based on the embodiments of the present invention without any creative work are within the scope of protection of the present invention.

[0022] In this specification, orientations or positional relationships indicated by terms such as "upper," "lower," "left," "right," "top," etc. are based on orientations or positional relationships shown in the drawings, and are intended merely to facilitate and simplify the explanation of the present invention, and do not indicate or imply that the devices or components shown or implied must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be understood as limitations on the present invention.

[0023] As shown in Figures 1 to 9, the hand-pushed cart includes a limit baffle 1 rotatably connected to the edge of the cart base surface 2, and by rotating the limit baffle 1 in the forward direction, it is deployed to limit cargo on the base surface 2 from the edge, and by rotating the limit baffle 1 in the reverse direction, it is retracted to make the base surface 2 flat, making it easier to transport cargo.

[0024] The limit baffle 1 is configured to be rotatably connected and attached to the edge of the platform 2. When rotated in the forward direction, the limit baffle 1 unfolds and becomes perpendicular to the platform 2, forming an effective peripheral limit, preventing cargo from scattering due to shaking during transportation and ensuring that cargo is placed stably and safely on the dolly. When the limit baffle 1 is rotated in the reverse direction, its side becomes parallel to and tightly attached to the platform 2, achieving more complete storage and preventing interference when transporting large-volume items, while maintaining the maximum usable area of ​​the platform 2 and improving the space utilization rate of the platform 2.

[0025] The flexible conversion form of the limit baffle 1 is adopted, which simplifies the storage process of the limit structure, enhances the adaptability and practicality of the trolley in different application scenarios, and significantly improves the functionality of the product and the user experience.

[0026] Preferably, the platform 2 adopts a medium-form structure to ensure the supporting strength, reduce the weight of the entire vehicle body, reduce the burden on the user, and facilitate storage and transportation.

[0027] In the hand-pushed cart of this embodiment, the limit baffle 1 is rotated and extended above the platform 2 to achieve deployment. A relay groove 3 for accommodating the limit baffle 1 is opened in the platform 2, and the inverted limit baffle 1 is further accommodated to make the platform 2 flat.

[0028] By providing the relay groove 3, when it is necessary to restrict cargo and prevent it from falling, the limit baffle 1 can be rotated upward to protrude above the platform surface 2, forming an effective stopper structure. When the limit baffle 1 is not in use, it can be rotated in the opposite direction and stored in the open relay groove 3, ensuring that the platform surface 2 remains flat without affecting the maximum utilization of the transport and loading area.

[0029] The installation of the above structure not only provides a flexible cargo securing method, but also ensures effective utilization and management of the space on the platform 2.

[0030] In the hand-operated trolley of this embodiment, the limit baffle 1 is rotatably mounted within the relay groove 3 via a rotating shaft 4, and one side of the interior of the relay groove 3 is configured as a storage chamber 5 that houses the limit baffle 1 after it has been inverted, and the rotating shaft 4 is located within the storage chamber 5.

[0031] The provision of the rotation shaft 4 makes it easy to invert the limit baffle 1. The rotation shaft 4 is located within the storage chamber 5, and during storage, the limit baffle 1 rotates around the rotation shaft 4, making it easy to store the entire limit baffle 1 within the storage chamber 5 and avoiding the part connected to the rotation shaft 4 from protruding. This allows the limit baffle 1 to rotate until it is flush with the platform surface 2, making maximum use of the loading space of the dolly and improving transportation efficiency.

[0032] Specifically, as shown in FIGS. 6 and 7 , a rotating shaft 4 is provided on each side of the limit baffle 1. The rotating shaft 4 is attached to mounting portions on both sides of the interior of the storage chamber 5. The mounting portions include first stoppers 19 for supporting the rotating shaft 4. The upper surfaces of the first stoppers 19 are arcuate surfaces that mate with the rotating shaft 4 to reduce rotational resistance. Second stoppers 20 are provided on both sides above the first stoppers 19, respectively, and the second stoppers 20 limit the rotating shaft 4 in the horizontal direction. To prevent the rotating shaft 4 from slipping out of the mounting groove formed between the stoppers, the two second stoppers 20 are formed in an "eight" shape. The tops of the mounting grooves gradually contract, further providing a vertical limit for the rotating shaft 4 engaged in the mounting groove and preventing it from slipping out during rotation.

[0033] In the hand-operated trolley of this embodiment, the other side of the interior of the relay groove 3 is configured as a support chamber 6 that communicates with the storage chamber 5, and the support chamber 6 has a support rib 7, and the limit baffle 1 rotates around the rotation axis 4 and abuts against the support rib 7 to achieve deployment.

[0034] A support chamber 6 communicating with the storage chamber 5 is provided within the intermediate groove 3, and the limit baffle 1 smoothly and easily switches position between the storage chamber 5 and the support chamber 6 via the rotation axis 4, thereby achieving the deployed or stored state. A support rib 7 is provided within the support chamber 6, and the limit baffle 1 rotates around the rotation axis 4 into the support chamber 6 and comes into contact with the upper surface of the support rib 7. At this time, a portion of the limit baffle 1 remains positioned within the intermediate groove 3, and the main body of the limit baffle 1 stably extends above the platform surface 2 under the limiting and supporting action of the support rib 7, thereby exerting a cargo stop limit effect.

[0035] Preferably, a plurality of support ribs 7 are uniformly provided within the support chamber 6, and the upper surfaces of the plurality of support ribs 7 are flush with each other to stably support the limit baffle 1.

[0036] In the hand-operated cart of this embodiment, bumps 8 are provided on the wall surface of the storage chamber 5, and engagement holes 9 are opened in the limit baffle 1. The limit baffle 1 is rotated to engage the engagement holes 9 with the bumps 8, thereby realizing positioning within the storage chamber 5.

[0037] By providing the bumps 8, when storing the limit baffle 1, the limit baffle 1 is rotated to pass over the surface of the bumps 8, and when the latching holes 9 are aligned with the bumps 8, the bumps 8 enter the latching holes 9 to latch and limit the limit baffle 1, ensuring that the limit baffle 1 can be fixed within the storage chamber 5 when not in use, thereby preventing the limit baffle 1 from shaking or unexpectedly deploying and enhancing the overall stability and safety of the pushcart. The use of the latching structure also simplifies the operation of storing the limit baffle 1 and improves the user experience.

[0038] Specifically, a bump 8 is provided at a corresponding position within the support chamber 6, and the bump 8 engages with the engagement hole 9 to limit the limit baffle 1 in the deployed state, thereby preventing any rattling after the limit baffle 1 is deployed from affecting the cargo limiting effect.

[0039] Preferably, the thickness of the portion of limit baffle 1 where engagement holes 9 are provided is greater than the thickness of other portions of limit baffle 1. With this arrangement, the thinner portions of limit baffle 1 avoid bumps 8 during the process of rotating and storing limit baffle 1, thereby reducing friction between their surfaces and bumps 8. During the period until bumps 8 are completely engaged with engagement holes 9, they come into contact with and rub against the surface of the thicker portions around engagement holes 9 only immediately before they engage with engagement holes 9.

[0040] In the push cart of this embodiment, the storage chamber 5 is provided so as to penetrate the platform surface 2, and the limit baffle 1 has a convex shape. When the limit baffle 1 is in the stored state, its protruding portion extends below the platform surface 2, making it easy to grip.

[0041] The above installation allows for hidden storage of the limit baffle 1, avoiding it taking up space on the platform surface 2 when not in use; when necessary, the user can quickly grasp the limit baffle 1 through the protruding part that extends below the platform surface 2 and rotate the limit baffle 1 around the rotation axis 4 to deploy it, further restricting the movement of cargo and ensuring improved safety during cargo transportation.

[0042] By adopting the above-mentioned installation, the protruding part at the top of the "convex"-shaped structure forms a pre-retained handhold position, allowing the user to easily grasp the limit baffle 1 even when the limit baffle 1 is stored. In addition, the above-mentioned installation increases the height of the limit baffle 1 to a certain extent, allowing for a better limit effect after deployment.

[0043] In the push cart of this embodiment, the limit baffle 1 is located in the middle of the edge when unfolded, and multiple limit baffles are provided, one at the front and on both the left and right sides of the platform 2, and a handle 10 that can be folded down onto the platform 2 is provided on the rear side of the platform 2.

[0044] Limit baffles 1 are provided on each of the three sides of the platform 2, and when deployed, each limit baffle 1 is located at the center of each edge, and combined with a handle 10, forms a fence structure from all four sides to restrict the movement of cargo and prevent items from scattering during transport. This installation allows limit baffles 1 in different positions to be selected and used as needed, greatly improving the flexibility of use of the limit structure.

[0045] In addition, the handle 10 on the rear side of the platform 2 can be folded onto the platform 2, and the corresponding left and right sides of the platform 2 are provided with engaging grooves for engaging side rods connected to the platform 2 on both sides of the handle 10 and realizing a limit for the folded handle 10. Using the above structure, the folded body can be placed in a stable standing position, thereby reducing the space occupied by the vehicle and facilitating storage and transportation of the vehicle.

[0046] In the hand-operated trolley of this embodiment, a mounting frame 12 for attaching casters 11 is provided at the bottom of the platform 2, and an insertion port for inserting a caster connection plate 13 is provided on one side of the mounting frame 12. A lock assembly for limiting the connection plate 13 is further provided on the platform 2.

[0047] Specifically, the casters 11 are attached to connecting plates 13, and one side of the mounting frame 12 is provided with an insertion port for receiving the insertion of the connecting plate 13. A locking assembly is also provided at the bottom of the platform 2, which can provide a stable limit after the connecting plate 13 is inserted. The quick insertion assembly structure not only simplifies the installation process of the casters 11, but also makes it convenient for users to quickly remove and replace the casters 11, thereby improving the use efficiency of the dolly.

[0048] In the hand-operated trolley of this embodiment, a slide groove 14 is further provided at the bottom of the platform 2, and the lock assembly includes a lock body 15 that is slidably connected within the slide groove 14. An elastic member 17 is provided between the lock body 15 and the slide groove 14, and the elastic member 17 extends the lock body 15 to the outside of the slide groove 14 and further abuts against the side edge of the connecting plate 13 to achieve a limit.

[0049] When the locking body 15 extends out of the sliding groove 14 under the action of the elastic member 17, the side of the locking body 15 abuts against the connecting plate 13 to close the insertion opening, further providing an effective limit for the connecting plate 13 and ensuring the stability of the caster 11 during transportation. When the caster 11 is removed and replaced, the locking body 15 is pressed to compress the elastic member 17 and cause it to contract into the sliding groove 14, at which point the insertion opening opens and the limit on the connecting plate 13 is released, making it easy to push the connecting plate 13 out of the mounting frame 12 and remove it.

[0050] In the hand truck of this embodiment, the lock assembly further includes a hook 16 provided on the lock body 15, and the hook 16 is engaged with a limit plate 18 fixed to the inner wall of the slide groove 14, and is used to further limit the lock body 15 and prevent the lock body 15 from coming off the slide groove 14.

[0051] By providing the hook 16 on the lock body 15, when no external force is applied, the thrust generated by the elastic member 17 moves the lock body 15 to the top of the sliding groove 14, at which time the hook 16 engages with the limiting plate 18 in the sliding groove 14, reliably limiting the lock body 15 within the sliding groove 14 and preventing it from accidentally coming loose during use, ensuring the safety of the locked state of the connecting plate 13. When the lock body 15 is pressed, the hook 16 separates from the limiting plate 18 and slides along the inner wall of the sliding groove 14, ensuring that the lock body 15 slides into the sliding groove 14 and releases the limit on the connecting plate 13.

[0052] In the present invention, unless otherwise clearly specified and limited, the terms "mounting," "installing," "connecting," "fixing," "rotating," etc. should be understood in a broad sense, and may refer to, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, a communication between two devices, or an interactive relationship between two devices. Unless otherwise clearly limited, those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0053] Although the embodiments of the present invention have been shown and described in detail, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. [Explanation of symbols]

[0054] 1. Limit baffle 2, pedestal 3. Relay groove 4. Rotation axis 5. Storage chamber 6. Support chamber 7. Support rib 8. Bump 9. Mounting hole 10. Handle 11. Caster 12. Mounting frame 13. Connection plate 14. Slide groove 15. Lock body 16. Hook 17. Elastic member 18. Limit board 19. First stopper 20. Second stopper.

Claims

1. A hand-pushed cart, a limit baffle rotatably connected to an edge of the carriage bed surface; This hand-pushed cart is characterized in that the limit baffles are deployed by rotating them in a forward direction to limit cargo on the platform from the edge, and are stored by rotating them in a reverse direction to make the platform flat, thereby facilitating the transportation of cargo.

2. 2. The hand-pushed cart according to claim 1, wherein the limit baffle is rotated to extend above the platform surface for deployment, and the platform surface is provided with a relay groove for accommodating the limit baffle, and further includes an inverted limit baffle to accommodate the inverted limit baffle to flatten the platform surface.

3. 3. The hand truck according to claim 2, wherein the limit baffle is rotatably mounted in the relay groove via a rotation shaft, one side of the interior of the relay groove is configured as a storage chamber that accommodates the limit baffle after inversion, and the rotation shaft is located within the storage chamber.

4. The hand-operated cart according to claim 3, characterized in that the other side of the interior of the relay groove is configured as a support chamber communicating with the storage chamber, the support chamber has a support rib, and the limit baffle rotates around a rotation axis and abuts against the support rib to achieve deployment.

5. 4. The hand-operated cart according to claim 3, wherein bumps are provided on the wall surface of the storage chamber, and the limit baffle has engagement holes, and the limit baffle is rotated to engage the engagement holes with the bumps, thereby realizing positioning within the storage chamber.

6. 4. The hand truck according to claim 3, wherein the storage chamber is provided through the platform surface, the limit baffle has a convex shape, and when the limit baffle is in a stored state, its protruding portion extends below the platform surface to make it easier to grip.

7. The hand-pushed cart according to claim 1, characterized in that the limit baffle is located in the middle of the edge when unfolded, and is provided in plurality, each located on the front side and both left and right sides of the platform, and a foldable handle is provided on the rear side of the platform.

8. 2. The hand truck according to claim 1, wherein a mounting frame for mounting casters is provided on the bottom of the platform, one side of the mounting frame is provided with an insertion hole for inserting a caster connecting plate, and the platform is further provided with a locking assembly for limiting the connection plate.

9. The hand truck of claim 8, wherein the bottom of the platform is further provided with a slide groove, the lock assembly includes a lock body slidably connected within the slide groove, and an elastic member is provided between the lock body and the slide groove, and the elastic member extends the lock body to the outside of the slide groove and abuts against the side edge of the connecting plate to achieve a limit.

10. 10. The hand-operated cart according to claim 9, wherein the lock assembly further includes a hook provided on the lock body, the hook being engaged with a limit board fixed to an inner wall of the slide groove and being used to limit the lock body and prevent the lock body from disengaging from the slide groove.

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