A flat cart that can cross obstacles

Abstract

The utility model relates to a kind of flatbed carts that can cross over obstacles, including bearing platform, sliding platform and object carrying platform, the bearing platform bottom two sides symmetry is provided with four groups of telescopic first rolling support structure, the bearing platform inside is provided with sliding slot, the sliding platform is slidably arranged in the sliding slot, and the sliding platform extends to the outside of bearing platform on one side, and the bottom of the outward side of sliding platform is fixedly provided with two groups of telescopic second rolling support structure;The object carrying platform bottom is provided with rolling wheel, and the object carrying platform is located on the top surface of bearing platform, and the bearing platform is provided with connecting plate connectable to the top surface of sliding platform.The utility model can cross over obstacles, and improve practicality.

Description

Technical Field

[0001] This utility model relates to the field of trolley equipment, specifically a flatbed trolley that can cross obstacles. Background Technology

[0002] Flatbed trolleys are a common handling tool in daily life, typically consisting of a flatbed, wheels, and handles. They can transport goods over a certain distance, reducing labor intensity, improving work efficiency, and meeting the needs of various operating environments. In urban wastewater treatment plants, flatbed trolleys are frequently used to move heavy objects such as chemicals and equipment within the plant area, making them a practical tool for operation and maintenance. However, sometimes the plant ground is uneven or contains obstacles such as pipelines, gaps, or steps, making it difficult for flatbed trolleys to move normally. This necessitates manual labor or the use of cranes or other equipment for transport, affecting work efficiency and increasing maintenance costs. Therefore, further optimization of the trolley is needed. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the present invention provides a flatbed cart that can cross obstacles, so as to solve the problem that the cart is not convenient to cross obstacles in the existing technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a flatbed cart capable of traversing obstacles, comprising a support platform, a sliding platform, and a cargo platform. The support platform has four sets of retractable first rolling support structures symmetrically arranged on both sides of its bottom. The support platform has a sliding groove inside, and the sliding platform is slidably disposed within the sliding groove. One side of the sliding platform extends to the outside of the support platform, and two sets of retractable second rolling support structures are fixedly arranged at the bottom of the outward-facing side of the sliding platform. The cargo platform has rolling wheels at its bottom, is located on the top surface of the support platform, and has a connecting plate on the support platform that can be connected to the top surface of the sliding platform.

[0005] The working principle of this utility model is as follows: two sets of first rolling support structures and second rolling support structures are arranged one after the other. When passing an obstacle, one of the support structures is retracted to ensure that the two support points can always move forward continuously.

[0006] Preferably, the first rolling support structure includes a first telescopic rod and a first universal wheel. The first telescopic rod includes a fixed sleeve and a sliding rod. The fixed sleeve is fixedly connected to the bottom of the bearing platform, the top end of the sliding rod is slidably connected to the fixed sleeve, and the bottom end of the sliding rod is fixedly connected to the first universal wheel. The side wall of the fixed sleeve is provided with a plurality of insertion holes extending into the interior along the vertical direction, and the sliding rod is provided with positioning holes. The second rolling support structure includes a second telescopic rod and a second universal wheel, and its structure is the same as that of the first rolling support structure.

[0007] Preferably, the top of the bearing platform is provided with two parallel first recessed tracks, which extend horizontally to one side of the connecting plate; the top surface of the sliding platform is provided with two parallel second recessed tracks, and the rolling wheel can roll within the first or second recessed tracks, with the spacing between the first and second recessed tracks being the same.

[0008] Preferably, the rolling wheel, the first swivel wheel, and the second swivel wheel are equipped with brakes.

[0009] Preferably, the bottom of the sliding platform is provided with a number of rolling rods evenly distributed.

[0010] Preferably, the bearing platform has an open movable cavity on one side near the second rolling support structure, the connecting plate is slidably disposed in the movable cavity, the movable cavity has side grooves on both sides, the two ends of the connecting plate are fixedly provided with limit posts, the limit posts and the side grooves are slidably connected, and the end of the opening is trumpet-shaped; when the connecting plate contacts the top surface of the sliding platform, the tilt angle of the connecting plate is less than 30 degrees.

[0011] Preferably, the side of the connecting plate, the fixing sleeve of the first telescopic rod, and the fixing sleeve of the second telescopic rod are provided with gripping parts, and the gripping parts are provided with rubber pads.

[0012] Preferably, a handrail is fixedly installed on the support platform.

[0013] Preferably, the sliding platform has a limiting groove on its side, and the limiting groove and the sliding direction of the sliding platform are consistent; the bearing platform has a limiting key fixedly provided on its side, and one side of the limiting key is located in the limiting groove.

[0014] Preferably, the second recessed track extends toward the side away from the support platform and is provided with a removable baffle.

[0015] Compared with the prior art, the technical solution of this application has the following technical effects:

[0016] 1. This utility model, by setting a cargo platform on the surface of a flatbed trolley, setting a pull-out flatbed inside, and setting foldable telescopic support legs at the bottom, can adjust the center of gravity position of the cargo on the flatbed trolley, the height of the bottom of the flatbed, and the distribution of the support legs, ensuring that the flatbed trolley can smoothly cross obstacles, enhancing the stability of the flatbed trolley, and expanding the scope of application.

[0017] 2. This utility model, by setting a pull-out flatbed inside the flatbed trolley, can adjust the size of the loading area, increase the loading capacity, and improve work efficiency.

[0018] 3. This utility model improves the convenience of loading and unloading goods and reduces the labor intensity of manual handling by setting a recessed track and a loading platform on the surface of the flatbed trolley.

[0019] 4. This utility model limits the movement range of the cargo platform vehicle by setting a recessed track with a certain depth on the surface of the flatbed trolley, thus ensuring the stability of the goods during transportation. Attached Figure Description

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Figure 1 This is a top view of the present invention;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a schematic diagram of the sliding platform of this utility model after it has been extended.

[0024] Figure 4 This is a schematic diagram of the first rolling support structure of this utility model before crossing;

[0025] Figure 5 This is a schematic diagram of the first rolling support structure of this utility model after crossing.

[0026] Figure 6 This is a schematic diagram of the connection plate of this utility model;

[0027] Figure 7 This is a schematic diagram of the limiting post of this utility model;

[0028] Figure 8 This is a schematic diagram of the connection between the fixing sleeve and the sliding rod of this utility model.

[0029] In the diagram: 1. Bearing platform; 2. Sliding platform; 3. Loading platform; 4. First rolling support structure; 5. Second rolling support structure; 6. Rolling wheel; 7. First omnidirectional wheel; 8. First telescopic rod; 9. First recessed track; 10. Sliding groove; 11. Connecting plate; 12. Second telescopic rod; 13. Second omnidirectional wheel; 14. Obstacle; 15. Handrail; 16. Second recessed track; 17. Baffle; 18. Movable cavity; 19. Side groove; 20. Limiting post; 21. Fixing sleeve; 22. Sliding rod; 23. Insertion hole; 24. Positioning hole. Detailed Implementation

[0030] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0031] like Figure 1 , 2 As shown in Figures 3, 4, and 5, a flatbed cart capable of traversing obstacles includes a support platform 1, a sliding platform 2, and a cargo platform 3. The support platform 1 has four sets of retractable first rolling support structures 4 symmetrically arranged on both sides of its bottom. The support platform 1 has a rectangular structure, with a set of first rolling support structures 4 at each of its four bottom corners. A sliding groove 10 is provided inside the support platform 1, and the sliding platform 2 is slidably disposed within the sliding groove 10. One side of the sliding platform 2 extends to the outside of the support platform 1, and two sets of retractable second rolling support structures 5 are fixedly arranged at the bottom of the outward-facing side of the sliding platform 2. A gap is left between the top surface of the sliding groove 10 and the top surface of the sliding platform 2 to prevent jamming. The cargo platform 3 has rolling wheels 6 at its bottom and is located on the top surface of the support platform 1. A connecting plate 11 that can be connected to the top surface of the sliding platform 2 is provided on the support platform 1. In this embodiment, the sliding groove 10 has a rectangular structure, and the sliding platform 2 has the same rectangular structure. The trolley is supported on the ground by a first rolling support structure 4 and a second rolling support structure 5 that are arranged in a retractable front and rear sequence, and uses an extendable sliding platform 2 as a temporary bridge to allow the cargo platform 3 to smoothly cross the obstacle 14.

[0032] like Figure 1 , 2 As shown in Figures 3, 4, 5, and 8, preferably, the first rolling support structure 4 includes a first telescopic rod 8 and a first universal wheel 7. The first telescopic rod 8 includes a fixed sleeve 21 and a sliding rod 22. The fixed sleeve 21 is fixedly connected to the bottom of the bearing platform 1. The top end of the sliding rod 22 is slidably connected to the fixed sleeve 21, and the bottom end of the sliding rod 22 is fixedly connected to the first universal wheel 7. The side wall of the fixed sleeve 21 has several insertion holes 23 extending into the interior along the vertical direction. A pin is installed in each insertion hole 23. The sliding rod 22 has a positioning hole 24. The second rolling support structure 5 includes a second telescopic rod 12 and a second universal wheel 13, and its structure is identical to that of the first rolling support structure 4. The extension and retraction of the universal wheel is controlled by the manually adjustable telescopic rod structure, providing alternately switchable stable support points for the trolley when crossing obstacles. After the sliding rod 22 slides to different positions, it can be limited by inserting a pin into the insertion holes 23 and positioning holes 24 at different heights. The fixed sleeve 21 is provided with a limiting key, which cooperates with the groove or hole on the sliding rod 22 to prevent the sliding rod 22 from slipping at the end of the extension stroke.

[0033] like Figure 1 , 2 As shown in Figures 3, 4, and 5, preferably, the top of the supporting platform 1 is provided with two parallel first recessed tracks 9, which extend horizontally to one side of the connecting plate 11. The top surface of the sliding platform 2 is provided with two parallel second recessed tracks 16, and the rolling wheel 6 can roll within either the first or second recessed tracks 9. The spacing between the first and second recessed tracks 9 and 16 is the same. The continuous first and second recessed tracks 9 and 16 with consistent spacing and alignment on the supporting platform 1 and the sliding platform 2 provide a rolling path for the loading platform 3, thereby ensuring that the loading platform 3 can be transferred smoothly, effortlessly, and accurately between the two platforms when crossing obstacles, effectively preventing it from deviating or getting stuck.

[0034] Preferably, the rolling wheel 6, the first omnidirectional wheel 7, and the second omnidirectional wheel 13 are equipped with brakes. The brakes can effectively lock the position of the trolley during obstacle crossing operations and when parking on slopes, preventing accidental movement and greatly improving operational safety and stability.

[0035] Preferably, the bottom of the sliding platform 2 is evenly provided with a plurality of rolling rods. When the sliding platform 2 moves within the sliding groove 10, the rolling rods reduce frictional resistance.

[0036] like Figure 1 , 6 As shown in Figure 7, preferably, the supporting platform 1 has an open movable cavity 18 on the side near the second rolling support structure 5. The connecting plate 11 is slidably disposed in the movable cavity 18. Side grooves 19 are provided on both sides of the movable cavity 18. Limiting posts 20 are fixedly provided at both ends of the connecting plate 11. The limiting posts 20 and the side grooves 19 are slidably connected. The end of the opening is trumpet-shaped. When the connecting plate 11 contacts the top surface of the sliding platform 2, the tilt angle of the connecting plate 11 is less than 30 degrees. The operator pulls the connecting plate 11 outward through the grip, and the limiting posts 20 slide along the side grooves 19 to prevent the connecting plate 11 from separating from the supporting platform 1. The connecting plate 11 slides smoothly out of the trumpet opening of the movable cavity 18 and rotates downward until it overlaps the top surface of the sliding platform 2 with a gentle slope of less than 30 degrees, forming a stable transition ramp.

[0037] Preferably, the side of the connecting plate 11, the fixing sleeve 21 of the first telescopic rod 8, and the fixing sleeve 21 of the second telescopic rod 12 are provided with grips, and the grips are provided with rubber pads. The use of grips with rubber pads in key operating parts significantly improves the anti-slip properties and comfort during operation.

[0038] Preferably, a handrail 15 is fixedly installed on the carrying platform 1. The handrail 15 provides the operator with a stable and reliable force application point, which greatly enhances the labor-saving and safety of pushing, turning and obstacle-crossing operations.

[0039] Preferably, the sliding platform 2 has a limiting groove on its side, and the limiting groove and the sliding platform 2 slide in the same direction. A limiting key is fixedly provided on the side of the supporting platform 1, with one side of the limiting key located within the limiting groove. This matching structure of the limiting groove and the limiting key prevents the sliding platform 2 from detaching from the supporting platform 1. The matching of the limiting key and the limiting groove not only prevents the sliding platform 2 from coming off, but also ensures that even at its maximum extension position, a portion of the platform body remains above the supporting platform 1 (and the first rolling support structure 4), ensuring structural stability.

[0040] Preferably, the second recessed track 16 extends toward the side away from the carrying platform 1 and is provided with a removable baffle 17. The baffle 17 is removed when the carrying platform 3 needs to be driven away.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flatbed cart capable of traversing obstacles, characterized in that, The system includes a support platform (1), a sliding platform (2), and a loading platform (3). The support platform (1) has four sets of retractable first rolling support structures (4) symmetrically arranged on both sides of its bottom. The support platform (1) has a sliding groove (10) inside. The sliding platform (2) is slidably disposed in the sliding groove (10). One side of the sliding platform (2) extends to the outside of the support platform (1). Two sets of retractable second rolling support structures (5) are fixedly arranged at the bottom of the outward side of the sliding platform (2). The loading platform (3) has rolling wheels (6) at its bottom. The loading platform (3) is located on the top surface of the support platform (1). The support platform (1) has a connecting plate (11) that can be connected to the top surface of the sliding platform (2).

2. The flatbed cart capable of traversing obstacles according to claim 1, characterized in that: The first rolling support structure (4) includes a first telescopic rod (8) and a first universal wheel (7). The first telescopic rod (8) includes a fixed sleeve (21) and a sliding rod (22). The fixed sleeve (21) is fixedly connected to the bottom of the bearing platform (1). The top end of the sliding rod (22) is slidably connected to the fixed sleeve (21), and the bottom end of the sliding rod (22) is fixedly connected to the first universal wheel (7). The side wall of the fixed sleeve (21) is provided with a plurality of insertion holes (23) extending into the interior along the vertical direction. The sliding rod (22) is provided with a positioning hole (24). The second rolling support structure (5) includes a second telescopic rod (12) and a second universal wheel (13) and its structure is the same as that of the first rolling support structure (4).

3. A flatbed cart capable of traversing obstacles according to claim 2, characterized in that: The top of the bearing platform (1) is provided with two parallel first recessed tracks (9), which extend horizontally to one side of the connecting plate (11); the top surface of the sliding platform (2) is provided with two parallel second recessed tracks (16), and the rolling wheel (6) can roll in the first recessed track (9) or the second recessed track (16), and the spacing between the first recessed track (9) and the spacing between the second recessed track (16) is the same.

4. A flatbed cart capable of traversing obstacles according to claim 1, characterized in that: The rolling wheel (6), the first omnidirectional wheel (7), and the second omnidirectional wheel (13) are equipped with brakes.

5. A flatbed cart capable of traversing obstacles according to claim 1, characterized in that: The bottom of the sliding platform (2) is evenly provided with several rolling rods.

6. A flatbed cart capable of traversing obstacles according to claim 1, characterized in that: The bearing platform (1) has an open movable cavity (18) on one side near the second rolling support structure (5). The connecting plate (11) is slidably disposed in the movable cavity (18). Side grooves (19) are provided on both sides of the movable cavity (18). Limiting posts (20) are fixedly provided at both ends of the connecting plate (11). The limiting posts (20) and the side grooves (19) are slidably connected. The end of the opening is trumpet-shaped. When the connecting plate (11) and the top surface of the sliding platform (2) are in contact, the tilt angle of the connecting plate (11) is less than 30 degrees.

7. A flatbed cart capable of traversing obstacles according to claim 1, characterized in that: The side of the connecting plate (11), the fixing sleeve (21) of the first telescopic rod (8) and the fixing sleeve (21) of the second telescopic rod (12) are provided with gripping parts, and rubber pads are provided on the gripping parts.

8. A flatbed cart capable of traversing obstacles according to claim 1, characterized in that: A handrail (15) is fixedly installed on the carrying platform (1).

9. A flatbed cart capable of traversing obstacles according to claim 1, characterized in that: The sliding platform (2) has a limit groove on its side, and the sliding direction of the limit groove is the same as that of the sliding platform (2); the side of the bearing platform (1) is fixedly provided with a limit key, and one side of the limit key is located in the limit groove.

10. A flatbed cart capable of crossing obstacles according to claim 3, characterized in that: The second recessed track (16) extends toward the side away from the bearing platform (1) and is provided with a removable baffle (17).

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