A transfer cart for conference exhibition services

Abstract

The application relates to the technical field of conference and exhibition service equipment, in particular to a transfer trolley for conference and exhibition service, which comprises a bearing frame structure, an adjusting support assembly and an auxiliary stabilizing mechanism. The bearing frame structure is provided with universal wheels at the bottom, the adjusting support assembly drives a lifting plate to move up and down along a guide column through a screw rod, so that the bearing height is adjusted; the auxiliary stabilizing mechanism enhances the stability of complex terrains through telescopic rods and supporting feet; the guardrail assembly can be folded and adjusted, the top antiskid layer increases the friction force, and the tool box provides a storage function. The application can flexibly adjust the bearing height according to requirements, improve the structural stability and operation efficiency, prevent the exhibits from sliding at the same time, meet the use requirements in various scenes, and has high practicability and creativity.

Description

Technical Field

[0001] This utility model belongs to the field of logistics and transportation equipment technology, specifically a transfer cart for conference and exhibition services. Background Technology

[0002] In conference and exhibition services, transport trolleys are essential tools for moving and displaying exhibits. Currently, some transport trolleys on the market feature multi-layered or foldable designs, but these devices often have limitations in their mechanical structure design. For example, some trolleys have limited load-bearing capacity, making it difficult to meet the transportation needs of large exhibits, and their structural stability may be affected in complex terrain conditions. Furthermore, some transport trolleys require frequent adjustments to component positions during use, resulting in low operational efficiency and demanding higher technical skills from the user.

[0003] For example, the Chinese invention patent (application number: 202110123456.7) discloses a "multifunctional logistics transfer device," the description of which includes a base frame, casters mounted on the bottom of the base frame, a lifting mechanism on the base frame connected to a carrying platform via a connecting rod, guardrail assemblies on both sides of the carrying platform, the guardrail assemblies being adjustable via sliding rails, and a locking device within the base frame to fix the height of the carrying platform. This application can adjust the height of the carrying platform and the length of the guardrails according to actual needs, adapting to the usage requirements of various scenarios; the above patent can demonstrate the room for improvement in the existing technology.

[0004] Therefore, we have made improvements to this by proposing a transfer cart for conference and exhibition services. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of limited carrying capacity, insufficient structural stability, and low operating efficiency of existing transfer carts used in conference and exhibition services.

[0006] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a transport trolley for conference and exhibition services, comprising a load-bearing frame structure, an adjustable support assembly, and an auxiliary stabilizing mechanism. The load-bearing frame structure has a movable component at its bottom. The adjustable support assembly is located inside the load-bearing frame structure and is slidably connected to it for adjusting the load-bearing height. The auxiliary stabilizing mechanism is located on both sides of the load-bearing frame structure and is fixedly connected to it via elastic connectors to enhance the trolley's stability under complex terrain conditions.

[0007] The adjusting support assembly includes a lifting plate and a drive unit. The bottom end of the lifting plate is provided with two symmetrically distributed guide columns. A guide sleeve is fitted on the outer side of the guide column. The guide sleeve is fixed to the inner wall of the load-bearing frame structure. The drive unit includes a screw and a handwheel. One end of the screw is threadedly connected to the lifting plate, and the other end passes through the load-bearing frame structure and is fixedly connected to the handwheel. By rotating the handwheel, the screw is driven to rotate, thereby pushing the lifting plate to move up and down along the guide columns.

[0008] As a preferred technical solution of this application, the supporting frame structure includes a base plate and side panels. Four universal wheels are fixedly provided at the bottom end of the base plate. The side panels are vertically fixed around the base plate. Two symmetrically distributed sliding grooves are opened on the inner side of the side panels. The sliding grooves have a T-shaped cross-section. The lifting plate has sliders on both sides that match the sliding grooves. The sliders are embedded in the sliding grooves and slide along them to ensure that the lifting plate remains horizontal during movement.

[0009] As a preferred technical solution of this application, the auxiliary stabilizing mechanism includes a telescopic rod and a support foot. One end of the telescopic rod is connected to the outside of the side panel via a hinge, and the other end is fixedly connected to the support foot. The bottom end of the support foot is provided with an anti-slip pad, and the middle part of the telescopic rod is provided with a spring. One end of the spring is fixedly connected to the telescopic rod, and the other end is fixedly connected to the side panel. When the trolley is used on uneven ground, the spring pushes the support foot to contact the ground through the telescopic rod, thereby improving the overall stability of the trolley.

[0010] As a preferred technical solution of this application, the top of the load-bearing frame structure is provided with a guardrail assembly, the guardrail assembly includes multiple foldable guardrail panels, adjacent guardrail panels are connected by hinges, the bottom of the guardrail panels is provided with buckles, the buckles are engaged with the top of the side panel to fix the position of the guardrail panels, when it is necessary to adjust the height or length of the guardrail assembly, it can be quickly adjusted by loosening the buckles and folding the guardrail panels.

[0011] As a preferred technical solution of this application, the top of the lifting plate is provided with an anti-slip layer, which is made of rubber material. The surface of the anti-slip layer is provided with a number of protrusions, which are arranged in a regular manner to increase the friction between the exhibit and the lifting plate and prevent the exhibit from sliding during transportation.

[0012] As a preferred technical solution of this application, a protective sleeve is provided on the outer side of the screw, the protective sleeve is fixed on the inner wall of the supporting frame structure, and the inner wall of the protective sleeve is provided with a lubricating coating to reduce the frictional resistance when the screw rotates, and at the same time prevent external dust from entering the connection between the screw and the lifting plate.

[0013] As a preferred technical solution of this application, a toolbox is provided on the outer side of the side panel, and a flip cover is provided at the opening of the toolbox. The flip cover is connected to the toolbox by a hinge. The toolbox is provided with a partition plate inside, which divides the toolbox into multiple independent storage spaces for storing repair tools or other small accessories.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] With its adjustable support components, the lifting platform can move up and down within the supporting frame structure, adjusting the load-bearing height according to actual needs and meeting the requirements of different scenarios. The auxiliary stabilizing mechanism allows the telescopic rods and support feet to automatically adjust their positions based on ground conditions, ensuring the trolley remains stable on complex terrain and preventing exhibits from tipping over due to uneven ground. The guardrail components allow for quick height or length adjustment by folding, accommodating the transportation needs of exhibits of different sizes, while the snap-lock design facilitates quick and easy fixing of the guardrails. The anti-slip layer and raised sections increase friction between the exhibits and the lifting platform, effectively preventing slippage during transport. The protective sleeve and lubricating coating reduce frictional resistance during screw rotation, extending the screw's lifespan. The toolbox, divided into multiple independent storage spaces by dividers, facilitates the categorized storage of repair tools or other small parts, enhancing the trolley's functionality and practicality.

[0016] In summary, this utility model solves the problems of limited load-bearing capacity, insufficient structural stability, and low operating efficiency of existing transport trolleys used in conference and exhibition services by optimizing the mechanical structure design, and has high inventiveness and practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model, showing the layout of the load-bearing frame structure, the adjusting support components and the auxiliary stabilizing mechanism, as well as the positions of the casters and the guardrail components.

[0018] Figure 2 This is a side sectional view of the present invention, which focuses on showing the internal structure of the adjustment support assembly, including the connection method of the lifting plate, guide column, screw and handwheel.

[0019] Figure 3 This is a schematic diagram of the auxiliary stabilizing mechanism of this utility model, which shows in detail the connection form of the telescopic rod, spring and support foot and the way they are fixed to the side panel.

[0020] Figure 4 This is a schematic diagram of the folded state of the guardrail assembly of this utility model, showing the folding method of the guardrail panels connected by hinges and the snap-fit ​​positions of the buckles and side panels.

[0021] Figure 5 This is a schematic diagram of the toolbox structure of this utility model, showing the distribution of the internal partitions and the opening and closing mechanism of the flip cover.

[0022] The attached figures are labeled as follows:

[0023] 1. Load-bearing frame structure; 2. Adjustable support assembly; 3. Auxiliary stabilizing mechanism; 4. Lifting plate; 5. Screw; 6. Handwheel; 7. Guide column; 8. Casters; 9. Guardrail assembly; 10. Telescopic bar; 11. Support feet; 12. Toolbox; 13. Divider. Detailed Implementation

[0024] This utility model provides a transfer trolley for conference and exhibition services, whose structural components include a load-bearing frame structure 1, an adjustable support assembly 2, and an auxiliary stabilizing mechanism 3. Combined with... Figures 1 to 5 As shown, the supporting frame structure 1 consists of a base plate and side panels. Four casters 8 are fixedly installed at the bottom of the base plate. The side panels are vertically fixed around the base plate, and two symmetrically distributed sliding grooves are formed on the inner side of each side panel, with a T-shaped cross-section. Sliding blocks matching the sliding grooves are provided on both sides of the lifting plate 4. The sliding blocks are embedded in the grooves and slide along them, ensuring that the lifting plate 4 remains horizontal during movement. The adjusting support assembly 2 is located inside the supporting frame structure 1. Two symmetrically distributed guide posts 7 are provided at the bottom of the lifting plate 4. Guide sleeves are fitted around the outer sides of the guide posts 7 and are fixed to the inner wall of the supporting frame structure 1. The drive unit includes a screw 5 and a handwheel 6. One end of the screw 5 is threadedly connected to the lifting plate 4, and the other end passes through the supporting frame structure 1 and is fixedly connected to the handwheel 6. Rotating the handwheel 6 drives the screw 5 to rotate, thereby pushing the lifting plate 4 up and down along the guide posts 7.

[0025] The auxiliary stabilizing mechanism 3 is located on both sides of the supporting frame structure 1. One end of the telescopic rod 10 is connected to the outer side of the side panel via a hinge, and the other end is fixedly connected to the support foot 11. The bottom end of the support foot 11 is provided with an anti-slip pad. A spring is provided in the middle of the telescopic rod 10. One end of the spring is fixedly connected to the telescopic rod 10, and the other end is fixedly connected to the side panel. When the trolley is used on uneven ground, the spring pushes the support foot 11 to contact the ground through the telescopic rod 10, enhancing the overall stability of the trolley. The guardrail assembly 9 is located on the top of the supporting frame structure 1. The guardrail assembly 9 includes multiple foldable guardrail panels. Adjacent guardrail panels are connected by hinges. The bottom of the guardrail panels is provided with a buckle, which engages with the top of the side panel to fix the position of the guardrail panel. When it is necessary to adjust the height or length of the guardrail assembly 9, it can be quickly adjusted by loosening the buckle and folding the guardrail panel.

[0026] The top of the lifting platform 4 is equipped with an anti-slip layer made of rubber. The surface of the anti-slip layer has several regularly arranged protrusions to increase the friction between the exhibit and the lifting platform 4, preventing the exhibit from sliding during transportation. A protective sleeve is fitted over the outer side of the screw 5, fixed to the inner wall of the supporting frame structure 1. The inner wall of the protective sleeve has a lubricating coating to reduce frictional resistance when the screw 5 rotates and to prevent external dust from entering the connection between the screw 5 and the lifting platform 4. A toolbox 12 is located on the outer side of the side panel. The toolbox 12 has a flip-top opening connected to it by a hinge. The toolbox 12 has an internal divider 13 that divides it into multiple independent storage spaces for storing repair tools or other small accessories.

[0027] In actual operation, the operator first adjusts the height of the lifting platform 4 according to the size and weight requirements of the exhibit. Rotating the handwheel 6 drives the screw 5 to rotate, causing displacement at the threaded end of the screw 5 connected to the lifting platform 4, pushing the lifting platform 4 up and down along the guide post 7. The cooperation between the guide post 7 and the guide sleeve ensures that the movement direction of the lifting platform 4 remains vertical, preventing tilting due to deviation. The slider of the lifting platform 4 is embedded in the groove inside the side panel; the T-shaped design of the groove restricts the lateral movement of the slider, further ensuring the stability of the lifting platform 4. After the lifting platform 4 is adjusted to the required height, the operator places the exhibit on the anti-slip layer of the lifting platform 4. The raised parts on the surface of the anti-slip layer increase friction, preventing the exhibit from sliding during transportation.

[0028] In complex terrain conditions, such as uneven ground or slopes, the auxiliary stabilization mechanism 3 comes into play. The support feet 11 are connected to the side panels via telescopic rods 10. A spring in the middle of the telescopic rods 10 automatically extends and retracts according to ground conditions, pushing the support feet 11 into contact with the ground. Anti-slip pads at the bottom of the support feet 11 further increase friction with the ground, making the trolley more stable overall. The design of the guardrail assembly 9 allows the trolley to adapt to the transportation needs of exhibits of different sizes. When the exhibit is tall, the operator can unfold the guardrail and secure it with buckles; when the exhibit is short or the guardrail is not needed, the guardrail can be folded away to save space. The dividers 13 inside the toolbox 12 rationally divide the storage space, facilitating the categorized storage of repair tools or other small accessories, improving the functionality and practicality of the trolley.

[0029] The entire trolley operates based on the synergistic effect of its mechanical structure. The load-bearing frame structure 1 serves as the main support component, providing the mounting base for other components. The adjustable support assembly 2, through the cooperation of screws 5 and guide columns 7, allows for height adjustment of the lifting platform 4, meeting the needs of different scenarios. The auxiliary stabilizing mechanism 3, through the linkage of springs and telescopic rods 10, enhances the trolley's stability in complex terrain conditions, preventing exhibits from tipping over due to uneven ground. The guardrail assembly 9, with its folding and snap-fit ​​design, allows for quick height and length adjustments, adapting to the transportation needs of exhibits of different sizes. The toolbox 12, with its partitions 13, enhances the trolley's storage capacity, facilitating the storage and retrieval of tools for operators. The connections, positions, and coordination between all components have been carefully designed to ensure the trolley possesses high load-bearing capacity, structural stability, and operational efficiency in practical applications.

[0030] To enable those skilled in the art to fully understand and implement this utility model, the specific implementation principle of this utility model is further explained below in conjunction with a specific application scenario.

[0031] At the exhibition service site, operators need to move exhibits of different sizes and weights from the storage area to the display area. First, the operators adjust the position of the lifting platform 4 according to the height of the exhibit to ensure that the exhibit can be easily placed on the lifting platform 4. By rotating the handwheel 6, the screw 5 rotates accordingly, and the lifting platform 4, which is threaded to the screw 5, moves up and down along the guide column 7. The guide sleeve fitted on the outside of the guide column 7 is fixed to the inner wall of the supporting frame structure 1 to ensure that the lifting platform 4 always maintains a vertical movement trajectory and avoids tilting of the lifting platform 4 due to deviation. At the same time, the sliders on both sides of the lifting platform 4 are embedded in the T-shaped slide grooves on the inner side of the side panel. The slide groove design limits the lateral displacement of the sliders, thereby further ensuring the stability of the lifting platform 4. After the lifting platform 4 is adjusted to the appropriate height, the operators place the exhibit on the anti-slip layer at the top of the lifting platform 4. The anti-slip layer is made of rubber material, and its regularly arranged protrusions increase friction and prevent the exhibit from sliding during transportation.

[0032] The cart is then pushed to areas with complex terrain, such as uneven ground or sloping sections. At this point, the auxiliary stabilization mechanism 3 comes into play. One end of the telescopic rod 10 is hinged to the outside of the side panel, and the other end is fixedly connected to the support foot 11. A spring in the middle of the telescopic rod 10 automatically extends and retracts according to the ground conditions, pushing the support foot 11 into contact with the ground. The anti-slip pad at the bottom of the support foot 11 further enhances the friction with the ground, keeping the cart stable and preventing exhibits from tipping over due to uneven ground. During this process, the elasticity of the spring ensures that the support foot 11 remains in contact with the ground, thus dynamically compensating for the impact of terrain changes on the cart's stability.

[0033] When exhibits are tall, operators deploy guardrail assembly 9 to provide additional protection. Guardrail assembly 9 comprises multiple foldable guardrail panels connected by hinges. Each guardrail panel has a latch at its bottom that engages with the top of the side panel to secure its position. Operators release the latches, unfold the guardrail panel to the desired height, and then secure it again to ensure that exhibits will not tip over due to accidental collisions during transport. When exhibits are short or guardrails are not required, the guardrail panels can be folded away, saving space and increasing the trolley's flexibility.

[0034] During transportation, the dividers 13 inside the toolbox 12 rationally divide the storage space, facilitating the categorized storage of repair tools or other small parts. The flip-top is connected to the toolbox 12 via hinges, allowing operators to easily open the flip-top to access tools. The toolbox 12 not only enhances the functionality of the trolley but also provides convenience for operators, reducing the need to carry additional tools.

[0035] The entire trolley operates based on the synergistic effect of its mechanical structure. The load-bearing frame structure 1 serves as the main support component, providing the mounting base for the adjustable support assembly 2, the auxiliary stabilizing mechanism 3, and other components. The adjustable support assembly 2 achieves height adjustment via a threaded connection between the screw 5 and the lifting plate 4, meeting the needs of different scenarios. The auxiliary stabilizing mechanism 3 enhances the trolley's stability in complex terrain conditions through the linkage of springs and the telescopic rod 10. The guardrail assembly 9 achieves quick adjustment through a folding and snap-fit ​​design, adapting to the transportation needs of exhibits of different sizes. The connections, positions, and coordination between all components have been carefully designed to ensure the trolley has high load-bearing capacity, structural stability, and operational efficiency in practical applications.

[0036] In summary, this utility model solves the problems of limited load-bearing capacity, insufficient structural stability, and low operating efficiency of existing transport trolleys used in conference and exhibition services by optimizing the mechanical structure design, and has high inventiveness and practicality.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A transfer trolley for conference and exhibition services, characterized in that, It includes a load-bearing frame structure (1), an adjustable support assembly (2), and an auxiliary stabilizing mechanism (3). The bottom of the load-bearing frame structure (1) is provided with a movable part. The adjustable support assembly (2) is located inside the load-bearing frame structure (1) and is slidably connected to the load-bearing frame structure (1). The auxiliary stabilizing mechanism (3) is located on both sides of the load-bearing frame structure (1) and is fixedly connected to the load-bearing frame structure (1) through elastic connectors.

2. The transfer trolley for conference and exhibition services according to claim 1, characterized in that, The adjustment support assembly (2) includes a lifting plate (4) and a drive unit. The bottom end of the lifting plate (4) is provided with two symmetrically distributed guide columns (7). A guide sleeve is sleeved on the outside of the guide column (7). The guide sleeve is fixed to the inner wall of the bearing frame structure (1). The drive unit includes a screw (5) and a handwheel (6). One end of the screw (5) is threaded to the lifting plate (4), and the other end passes through the bearing frame structure (1) and is fixedly connected to the handwheel (6).

3. The transfer trolley for conference and exhibition services according to claim 2, characterized in that, The supporting frame structure (1) includes a base plate and side panels. Four casters (8) are fixed at the bottom of the base plate. The side panels are vertically fixed around the base plate. Two symmetrically distributed sliding grooves are opened on the inner side of the side panels. The cross-section of the sliding grooves is T-shaped. The lifting plate (4) has sliders on both sides that match the sliding grooves. The sliders are embedded in the sliding grooves and slide along them.

4. A transfer trolley for conference and exhibition services according to claim 1, characterized in that, The auxiliary stabilizing mechanism (3) includes a telescopic rod (10) and a support foot (11). One end of the telescopic rod (10) is connected to the outside of the side panel through a hinge, and the other end is fixedly connected to the support foot (11). The bottom end of the support foot (11) is provided with an anti-slip pad. The middle part of the telescopic rod (10) is provided with a spring. One end of the spring is fixedly connected to the telescopic rod (10), and the other end is fixedly connected to the side panel.

5. A transfer trolley for conference and exhibition services according to claim 1, characterized in that, The top of the load-bearing frame structure (1) is provided with a guardrail assembly (9), which includes multiple foldable guardrail pieces. Adjacent guardrail pieces are connected by hinges. The bottom of the guardrail pieces is provided with a buckle, which is engaged with the top of the side panel.

6. A transfer trolley for conference and exhibition services according to claim 2, characterized in that, The top of the lifting plate (4) is provided with an anti-slip layer, which is made of rubber material and has several regularly arranged protrusions on its surface.

7. A transfer trolley for conference and exhibition services according to claim 2, characterized in that, The screw (5) is fitted with a protective sleeve on its outer side. The protective sleeve is fixed to the inner wall of the supporting frame structure (1). The inner wall of the protective sleeve is provided with a lubricating coating.

8. A transfer trolley for conference and exhibition services according to claim 1, characterized in that, A toolbox (12) is provided on the outside of the side panel. The toolbox (12) has a flip cover at its opening. The flip cover is connected to the toolbox (12) by a hinge. The toolbox (12) has a partition (13) inside, which divides the toolbox (12) into multiple independent storage spaces.

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