Chain type stair-climbing carrier

Abstract

The utility model relates to the technical field of stair carrying, in particular to a chain type stair climbing carrier which comprises a bottom plate, a support installed on the bottom plate, a triangular support installed on the support, stair climbing wheels installed on the triangular support and a transmission structure installed on the support and used for providing power for the triangular support. The tripod is installed on the bottom plate through a rotating rod, the rotating rod is rotationally connected with the bottom plate, three stair climbing wheels are installed on the tripod, a transmission motor is installed on the tripod, the power output end of the transmission motor is fixedly connected with one stair climbing wheel, and the power output end of the transmission motor is fixedly connected with the other stair climbing wheel. The three stair climbing wheels are connected through a transmission belt. Therefore, by means of the chain type stair-climbing carrier, the technical problems that the coordination of a power system and a walking system is insufficient, and the gravity center is prone to being unstable when large objects are carried can be solved.

Description

Technical Field

[0001] This application relates to the field of stair transport technology, and more specifically, to a chain-type stair-climbing transport vehicle. Background Technology

[0002] In daily life and industrial production, moving heavy objects up and down stairs is a common need, especially in logistics, construction, and warehousing. Traditional handling methods mainly rely on manual labor, which is not only inefficient but also prone to causing lumbar, cervical, and knee strains in workers due to long-term high-intensity labor, and may even lead to chronic health problems. Although some manual / automatic chain-type handling vehicles exist, their functions are mostly limited to flat ground transportation, and they still have significant shortcomings in stair-climbing scenarios. For example, existing stair-climbing equipment is often inconvenient to operate due to its complex structure, or it is limited by poor adaptability to different stair heights, making it difficult to stably traverse stairs of different sizes; at the same time, its power system and walking system lack coordination, which can easily lead to instability when moving large items, posing a safety hazard. In addition, existing equipment is generally large in size and occupies a lot of space, making it difficult to adapt to handling scenarios in narrow corridors or elevators.

[0003] To address the aforementioned issues, there is an urgent need for a stair-climbing and transporting equipment that combines flexibility, safety, and efficiency. Utility Model Content

[0004] Based on the above problems, this application proposes a chain-type stair-climbing transport vehicle to solve the technical problem of insufficient coordination between the power system and the walking system, which easily leads to instability of the center of gravity when transporting large items.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A chain-driven stair-climbing transport vehicle includes a base plate, a bracket mounted on the base plate, a tripod mounted on the bracket, stair-climbing wheels mounted on the tripod, and a transmission structure mounted on the bracket for providing power to the tripod.

[0007] The tripod is mounted on the base plate via a rotating rod, which is rotatably connected to the base plate. Three stair-climbing wheels are mounted on the tripod, and a drive motor is mounted on the tripod. The power output end of the drive motor is fixedly connected to one of the stair-climbing wheels, and the three stair-climbing wheels are connected to each other via a drive belt.

[0008] In one specific implementation, the base plate is provided with casters, two of which are omnidirectional casters, and the other two casters cannot turn relative to the base plate.

[0009] In one specific implementation scheme, the transmission structure includes a power motor mounted on the bracket, a rotating shaft provided on the power output end of the power motor, two driving gears provided on the rotating shaft, and a driven gear corresponding to the two driving gears provided on the rotating rod, with each driving gear and each driven gear connected by a chain.

[0010] In one specific implementation, each of the driven gears and each of the driving gears are fixedly connected between the rotating rod and the rotating shaft, respectively.

[0011] In one specific implementation scheme, a hydraulic cylinder is provided on the base plate. There are two hydraulic cylinders, and a mounting base is provided between the two hydraulic cylinders. The mounting base is provided with a mounting hole, and a fixing strip for fixing the goods is provided in the mounting hole. The mounting base is provided with a fixing bolt for fixing the fixing strip to the mounting hole.

[0012] In one specific implementation, the fixing bolt is threadedly connected to the mounting base, and the fixing bolt abuts against the fixing strip.

[0013] In one specific implementation, at least one fixing strip is provided.

[0014] The positive effects of this utility model are:

[0015] The gear-chain transmission structure (with the driving gear and driven gear linked) ensures that the torque output by the power motor is evenly transmitted to the rotating rod, driving the tripod to rotate synchronously, and avoiding the center of gravity shift caused by uneven power distribution of the stair climbing wheels.

[0016] The drive motor directly drives one of the stair-climbing wheels, and the other two wheels are linked by a transmission belt to achieve synchronous movement of the three wheels, thereby enhancing stability when climbing stairs.

[0017] The hydraulic cylinder allows for adjustable mounting height to accommodate different cargo sizes. The fixing strip is secured to the mounting holes with bolts, forming a multi-point rigid fixation to prevent cargo from sliding or tilting. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the transmission structure of this utility model;

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Base plate; 2. Bracket; 3. Tripod; 4. Stair climbing wheel; 5. Rotating rod; 6. Drive motor; 7. Drive belt; 8. Rotating wheel; 9. Power motor; 10. Shaft; 11. Drive gear; 12. Driven gear; 13. Chain; 14. Hydraulic cylinder; 15. Mounting base; 16. Fixing strip; 17. Fixing bolt. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Example

[0026] The chain-driven stair-climbing transport vehicle structure in this embodiment is as follows: Figures 1 to 3 As shown, its core components include a base plate 1, a support 2, a tripod 3, stair-climbing wheels 4, and a transmission structure. A chain-driven stair-climbing transport vehicle includes a base plate 1, a support 2 mounted on the base plate 1, a tripod 3 mounted on the support 2, stair-climbing wheels 4 mounted on the tripod 3, and a transmission structure mounted on the support 2 to provide power to the tripod 3. The transmission structure includes a power motor 9 mounted on the support 2, a rotating shaft 10 at the power output end of the power motor 9, two driving gears 11 on the rotating shaft 10, and driven gears 12 corresponding to the two driving gears 11 on a rotating rod 5. Each driving gear 11 and each driven gear 12 are connected by a chain 13. Each driven gear 12 and each driving gear 11 are fixedly connected between the rotating rod 5 and the rotating shaft 10.

[0027] The tripod 3 is mounted on the base plate 1 via a rotating rod 5. Two sets of tripods 3 are provided. The rotating rod 5 is rotatably connected to the base plate 1. Three stair-climbing wheels 4 are mounted on the tripod 3. The three stair-climbing wheels 4 are respectively mounted at the three ends of the tripod 3. A drive motor 6 is mounted on the tripod 3. The power output end of the drive motor 6 is fixedly connected to one of the stair-climbing wheels 4. The three stair-climbing wheels 4 are connected to each other via a drive belt 7.

[0028] The base plate 1 is provided with casters 8, two of which are omnidirectional casters, and the other two casters 8 cannot turn with respect to the base plate 1. This design ensures that the transport vehicle has both flexibility and directional stability when on flat ground.

[0029] Hydraulic cylinders 14 are mounted on the base plate 1. Two hydraulic cylinders 14 are provided, and a mounting base 15 is positioned between them. The mounting base 15 has mounting holes, and at least one fixing strip 16 is provided in each mounting hole for securing the goods. Fixing bolts 17 are provided on the mounting base 15 to fix the fixing strips to the mounting holes. The height of the hydraulic cylinders 14 can be adjusted to accommodate the size of the goods, and multi-point rigid fixation is achieved through the fixing strips 16 and bolts to prevent the goods from sliding or tilting. The fixing bolts 17 allow for the removal and installation of the fixing strips 16.

[0030] The fixing bolt 17 is threadedly connected to the mounting base 15, and the fixing bolt 17 abuts against the mounting strip.

[0031] Working principle

[0032] When encountering stairs, the hydraulic cylinder 14 drives the fixing bar 16 to secure the goods, and the drive motor 6 is started, driving the stair-climbing wheels 4 to rotate. The power motor 9 operates, and the rotating rod 5 drives the tripod 3 to unfold downwards, so that the stair-climbing wheels 4 contact the surface of the steps. At this time, the casters and fixed wheels are suspended in the air, and the transport vehicle is completely supported by the tripod 3. The power motor 9 drives the tripod to rotate, and the drive motor 6 drives the stair-climbing wheels 4 to rotate.

[0033] The gear-chain transmission system (with the driving gear 11 and driven gear 12 linked) evenly transmits the output torque of the power motor 9 to the rotating rod 5, driving the tripod 3 to rotate synchronously. The three-wheel synchronous drive design (with the transmission belt 7 linked) further eliminates the problem of uneven power distribution, ensuring a smooth stair-climbing process.

[0034] The tripod 3's three-point support structure can adapt to steps of different heights. Actual tests show that when the height of a single step is 15-20cm, the trolley can still maintain at least two wheels in contact with the step surface, avoiding jamming or tipping over.

[0035] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A chain type stair climbing carrier characterized by, The utility model provides a kind of portable goods lifting device, including bottom plate (1), support (2) installed on the bottom plate (1), tripod (3) installed on the support (2), stair climbing wheel (4) installed on the tripod (3) and transmission structure installed on the support (2) for providing power for tripod (3); The tripod (3) is installed on the bottom plate (1) by a rotating rod (5), which is rotatably connected between the bottom plate (1) and the rotating rod (5). Three stair climbing wheels (4) are installed on the tripod (3). A transmission motor (6) is installed on the tripod (3). The power output end of the transmission motor (6) is fixedly connected to one of the stair climbing wheels (4). The three stair climbing wheels (4) are connected by a transmission belt (7).

2. A stair climbing carrier according to claim 1, wherein The bottom plate (1) is provided with rotating wheels (8). Two of the rotating wheels (8) are universal wheels, and the remaining two rotating wheels (8) cannot be steered between the bottom plate (1).

3. A stair climbing carrier according to claim 1, wherein The transmission structure includes a power motor (9) installed on the support (2). The power output end of the power motor (9) is provided with a rotating shaft (10). The rotating shaft (10) is provided with two driving gears (11). The rotating rod (5) is provided with two driven gears (12) corresponding to the two driving gears (11). Each driving gear (11) is connected to each driven gear (12) by a chain (13).

4. A stair climbing chain trolley as claimed in claim 3 wherein, Each driven gear (12) and each driving gear (11) are fixedly connected between the rotating rod (5) and the rotating shaft (10), respectively.

5. A stair climbing carrier according to claim 1 wherein, The bottom plate (1) is provided with a hydraulic cylinder (14). The hydraulic cylinder (14) is provided with two mounting seats (15). The mounting seat (15) is provided with a mounting hole. The mounting hole is provided with a fixing strip (16) for fixing goods. The mounting seat (15) is provided with a fixing bolt (17) for fixing the fixing strip (16) to the mounting hole.

6. A stair climbing chain trolley as claimed in claim 5 wherein, The fixing bolt (17) is threadedly connected between the mounting seat (15). The fixing bolt (17) is in abutment with the fixing strip (16).

7. A chain stair climber cart according to claim 5, wherein The fixing strip (16) is provided with at least one.

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