Carriage and freight vehicle
By designing a variety of opening methods that combine flip-up doors and sliding doors on the carriage, and using guide rails and slider assemblies to achieve smooth movement of the sliding doors, the problem of cold air loss and inconvenience in loading and unloading goods in multi-temperature zone transport vehicles under high-temperature environments is solved, thereby improving transportation efficiency and operational convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DINGMIAOLE NEW ENERGY VEHICLE TECHNOLOGY (SHANGHAI) CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-05-26
AI Technical Summary
Existing multi-temperature zone transport vehicles suffer significant air loss in high-temperature summer environments, making temperature control difficult. Furthermore, the single rear door design limits the flexibility and ease of operation for loading and unloading goods, especially in confined spaces or busy streets, where operation is inconvenient and costly.
Design a carriage that adopts a variety of opening methods combining flip-up doors and sliding doors. The sliding doors can be moved smoothly through guide rails and slider assemblies. Multiple slider assemblies are set on the guide rails to ensure stability and safety, avoiding the inconvenience of opening traditional side-opening doors in narrow spaces.
It improves the efficiency and flexibility of cargo loading and unloading, reduces the labor intensity of operators, ensures the safe loading and unloading of goods, adapts to different usage scenarios, and reduces the difficulty and operating cost of temperature control.
Smart Images
Figure CN224277333U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle carriage technology, and in particular to a vehicle carriage and freight vehicle. Background Technology
[0002] In recent years, with increasingly stringent and comprehensive food safety regulations, the temperature control requirements for sensitive goods such as food and medicine during transportation have also been continuously raised. Currently, most multi-temperature zone transport vehicles on the market use a single refrigeration system, adjusting the temperature of different zones to meet the needs of multi-temperature transport. However, this design has significant limitations in practical applications, especially during multi-point delivery in high-temperature summer environments. Frequent opening of the rear door leads to a significant loss of cold air, further complicating temperature control and reducing transportation efficiency. Simultaneously, the single rear door design limits the flexibility of loading and unloading, particularly in confined spaces or busy streets, resulting in inconvenient operations and high time costs. Utility Model Content
[0003] The purpose of this utility model is to provide a carriage, including a carriage body, having a first side wall and a second side wall opposite to each other, a first door opening and a second door opening arranged side by side on the first side wall; a flip-open door, disposed on the first side wall, for opening or closing the first door opening; a sliding door, disposed on the first side wall, for opening or closing the second door opening; a guide rail, installed on the first side wall, with its length direction perpendicular to the height direction of the carriage body; and a slider assembly, fixed to the sliding door, for sliding along the length of the guide rail.
[0004] Preferably, there are three guide rails: a first guide rail above the sliding door, a second guide rail below the sliding door, and a third guide rail on the side; there are three slider assemblies: a first slider assembly, a second slider assembly, and a third slider assembly. The first slider assembly is partially slidably disposed within the first guide rail and fixed to the sliding door; the second slider assembly is partially slidably disposed within the second guide rail and fixed to the sliding door; and the third slider assembly is partially slidably disposed within the third guide rail and fixed to the sliding door.
[0005] Preferably, the first slider assembly and the second slider assembly include a bent plate and a roller, the roller being located inside the guide rail, and the two ends of the bent plate being connected to the roller and the sliding door, respectively.
[0006] Preferably, the third slider assembly includes a third roller located inside the guide rail; a first connecting plate connected to the third roller; an intermediate plate connected to and hinged to the first connecting plate; and a second connecting plate connected to the sliding door and hinged to the intermediate plate.
[0007] Preferably, the sliding door moves away from the direction of the flip-open door to open the doorway.
[0008] Preferably, the third guide rail is located on the side of the sliding door away from the flip-up door.
[0009] Preferably, the flip-top door includes a flip-top body for opening and closing the second doorway; and hinges connected to the flip-top body and the main body of the carriage, respectively; the flip-top body flips around the hinges to control the opening or closing of the second doorway.
[0010] Preferably, the hinges are a pair, spaced apart from each other along the height direction of the carriage body.
[0011] Preferably, the hinge is located on the side of the folding door body facing the sliding door.
[0012] A freight vehicle includes a compartment as described in the preceding paragraph, the compartment being used for storing goods.
[0013] This solution combines flip-top doors with sliding doors, enabling diverse opening methods for the carriage doors and improving the efficiency and flexibility of cargo loading and unloading.
[0014] By setting up vertical guide rails and slider assemblies, sliding doors can move smoothly along the guide rails, avoiding the problem of traditional side-opening doors being inconvenient to open in narrow spaces.
[0015] Meanwhile, the flip-open door design allows for easy control of the door opening even when there is insufficient lateral space, further enhancing the practicality of the carriage door.
[0016] In addition, the fixed connection between the slider assembly and the sliding door, as well as the sliding of the slider assembly within the guide rail, ensures the stability and safety of the sliding door, reduces the shaking of the door during opening or closing, and improves the overall service life.
[0017] This design is particularly suitable for industries such as logistics and transportation, and can significantly improve work efficiency, reduce the labor intensity of operators, and ensure the safe loading and unloading of goods. It has broad application prospects and practical value. Attached Figure Description
[0018] Figure 1 This is a front view of the carriage in an embodiment of this application;
[0019] Figure 2 This is a rear view of the carriage in an embodiment of this application;
[0020] Figure 3 This is a left view of the carriage in an embodiment of this application;
[0021] Figure 4 This is a schematic diagram of the structure of the first guide rail and the first slider assembly after assembly in an embodiment of this application;
[0022] Figure 5 This is a schematic diagram of the structure after the first connecting plate, the intermediate plate and the second connecting plate are assembled in the embodiment of this application.
[0023] List of reference numerals
[0024] 1. Carriage; 11. Carriage body; 111. First side wall; 112. Second side wall; 12. Flip-up door; 121. Flip-up door body; 122. Hinge; 13. Sliding door; 141. First guide rail; 143. Third guide rail; 151. First slider assembly; 152. Second slider assembly; 153. Third slider assembly; 1511. Curved plate; 1512. Roller; 1531. First connecting plate; 1532. Middle plate; 1533. Second connecting plate; 2. Freight vehicle; 21. Rear door. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.
[0026] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.
[0027] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.
[0028] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.
[0029] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.
[0030] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.
[0031] The embodiments of this utility model are described below with reference to the accompanying drawings.
[0032] One aspect of this application provides a carriage, including a carriage body having opposing first and second side walls, the first side wall having a first door opening and a second door opening arranged side by side; a flip-open door disposed on the first side wall for opening or closing the first door opening; a sliding door disposed on the first side wall for opening or closing the second door opening; a guide rail mounted on the first side wall, the length direction of the guide rail being arranged perpendicular to the height direction of the carriage body; and a slider assembly fixedly connected to the sliding door and used for sliding along the length of the guide rail.
[0033] This embodiment achieves flexibility in entering the vehicle from different locations by setting up two doorways, each equipped with a flip-up door and a sliding door respectively, thus improving operational efficiency. The corresponding door can be opened in the corresponding cold-controlled area. The flip-up door utilizes a hinged flip-up structure, which is simple, reliable, and easy to open quickly, while the sliding door slides vertically through the cooperation of guide rails and slider assemblies, reducing reliance on the electric system and improving economy and maintenance convenience. The two doorways are arranged side-by-side, especially when retrieving goods from side parking, greatly improving the vehicle's adaptability in complex working conditions. In other embodiments, the operation process can be further optimized by adjusting the size or position of the doorways, solving the problem of inconvenient goods retrieval in specific scenarios.
[0034] Further, in one aspect of this application, there are three guide rails: a first guide rail located above the sliding door, a second guide rail located below the sliding door, and a third guide rail located on the side of the sliding door. There are also three slider assemblies: a first slider assembly, a second slider assembly, and a third slider assembly. A portion of the first slider assembly is slidably disposed within the first guide rail and is fixedly connected to the sliding door; a portion of the second slider assembly is slidably disposed within the second guide rail and is fixedly connected to the sliding door; and a portion of the third slider assembly is slidably disposed within the third guide rail and is fixedly connected to the sliding door. The three guide rails, in conjunction with the three slider assemblies, ensure the smoothness and guidance of the sliding door's movement, preventing jamming or wobbling. In principle, by adding a third guide rail on the side, a multi-point supported sliding structure is formed, improving the stability of the sliding door. The smooth sliding of the sliding door reduces the physical exertion of the operator and improves the manual operation experience. In other embodiments, the durability of the guide rails can be further improved by increasing the material strength or using more refined processing techniques, solving the wear and tear problems that may occur under long-term use.
[0035] Furthermore, in one aspect of this application, the first slider assembly and the second slider assembly include: a curved plate and a roller, the roller being located within a guide rail, and both ends of the curved plate being connected to the roller and the sliding door, respectively. The combination structure of the roller and the curved plate simplifies the design of the slider assembly and reduces manufacturing costs. In principle, the roller rolls within the guide rail, reducing frictional resistance and making the sliding door easier to push. The simple and low-cost slider assembly not only improves the sliding efficiency of the sliding door but also reduces maintenance costs. In other embodiments, using a roller made of a low-friction material can further reduce sliding resistance and improve the user experience.
[0036] Further, in one aspect of this application, the third slider assembly includes: a third roller located within the guide rail; a first connecting plate connected to the third roller; an intermediate plate connected to and hinged to the first connecting plate; and a second connecting plate connected to the sliding door and hinged to the intermediate plate. This multi-stage hinge structure enhances the flexibility and adaptability of the third slider assembly, making it suitable for situations where slight deviations occur during door opening and closing. In principle, the hinged design of the connecting plate and intermediate plate allows for fine-tuning of the door during sliding, improving the stability and reliability of the sliding system. This structure provides compensation when the guide rail trajectory changes, reducing the risk of door jamming and improving the adaptability and lifespan of the door sliding system. In other embodiments, the adaptability of the door can be further improved by increasing the number of hinge points, solving the door sliding problem when the guide rail trajectory changes complexly.
[0037] Furthermore, in one aspect of this application, the sliding door moves away from the direction of the flip-top door when opening. This embodiment, by setting the opening direction of the sliding door, avoids interference with the flip-top door, thus improving safety. In principle, the independent operating logic of the sliding door and the flip-top door ensures that they do not affect each other when opening. Moving the sliding door away from the flip-top door not only avoids operational conflicts but also improves operational efficiency. In other embodiments, the opening path of the door can be optimized to further avoid the risk of collision for the operator during opening, thereby improving safety.
[0038] Furthermore, in one aspect of this application, the third guide rail is positioned on the side of the sliding door away from the flip-up door. The optimized placement of the third guide rail improves the directional layout and avoids structural congestion. In principle, the third guide rail's distance from the flip-up door ensures a clear path for the sliding door during movement and reduces structural overlap with the flip-up door. This optimized positioning of the third guide rail makes the sliding door move more smoothly, improving the user experience. In other embodiments, the sliding path of the door can be further optimized by adjusting the specific position of the third guide rail, solving the problem of uneven sliding in certain layouts.
[0039] Further, in one aspect of this application, the flip-top door includes: a flip-top body for opening and closing a second doorway; and hinges connected to both the flip-top body and the main body of the vehicle body. The flip-top body rotates around the hinges to open or close the second doorway. The hinge-rotating structure provides an intuitive opening method for the flip-top door, facilitating quick operation. In principle, the hinge allows the flip-top body to rotate around its axis, enabling rapid opening and closing of the doorway. The rapid opening of the flip-top door is suitable for quickly retrieving items in emergencies, improving efficiency. In other embodiments, the structural strength of the flip-top door can be further improved by increasing the hinge strength or using more durable materials, addressing the durability issue under frequent opening and closing.
[0040] Furthermore, in one aspect of this application, the hinges are arranged in pairs, spaced apart along the height of the main body of the vehicle. This spacing between the hinges ensures more even force distribution during the door's opening and closing process, improving the structural strength of the door. In principle, the spacing of the hinges ensures the stability of the door body during opening and closing, reducing uneven force distribution caused by center of gravity shift. The evenly stressed door body extends the service life of the opening and closing mechanism and reduces maintenance costs. In other embodiments, the force distribution of the door body can be further optimized by adjusting the hinge spacing, solving the problem of opening and closing stability in specific usage scenarios.
[0041] Furthermore, in one aspect of this application, the hinge is positioned on the side of the folding door body facing the sliding door. This hinge arrangement simplifies the door structure and improves overall compactness. In principle, positioning the hinge towards the sliding door reduces the space occupied when the door is open, facilitating operation in confined spaces. This hinge arrangement also enhances the ease of installation for the folding door and reduces installation difficulty. In other embodiments, the opening path of the door can be further optimized by adjusting the hinge's installation position, addressing space constraints in specific environments.
[0042] One aspect of this application provides a freight vehicle, which includes a cargo compartment as described above, with the compartment used for storing goods. The freight vehicle of this embodiment employs the aforementioned cargo compartment structure, achieving flexibility and efficiency in loading and unloading goods. In principle, the combination of a flip-up door and a sliding door, along with the cooperation of guide rails and slider assemblies, provides the freight vehicle with diverse methods for picking up goods. The freight vehicle can quickly and conveniently complete loading and unloading of goods in different usage scenarios, improving transportation efficiency. In other embodiments, the practicality of the freight vehicle can be further enhanced by increasing the cargo compartment's load-bearing capacity or optimizing the door dimensions, thus solving efficiency problems under specific transportation needs.
[0043] During the operation or use of this application, the tilting and sliding doors of the carriage are used to open or close the first and second doorways, respectively. Operators can choose to enter the carriage through either doorway as needed. When retrieving goods from the first doorway, the operator can quickly open the tilting door, utilizing the hinged tilting structure to achieve rapid opening. When retrieving goods from the second doorway, the operator can manually push the sliding door, allowing it to slide smoothly along the guide rail, thus opening the second doorway. During the sliding process, the rollers of the first and second slider assemblies roll within the guide rail, reducing frictional resistance and making pushing the sliding door easier. The multi-stage hinged structure of the third slider assembly provides adaptability to slight offsets during door opening and closing, ensuring smooth sliding under complex conditions. Throughout the operation or use, the independent operating logic of the tilting and sliding doors avoids interference between them, improving operational convenience and safety. Simultaneously, the optimized guide layout and door structure make the loading and unloading process more flexible and efficient, adapting to different usage scenarios.
Claims
1. A type of carriage, characterized in that, include: The main body of the carriage has a first side wall and a second side wall opposite to each other. The first side wall has a first door opening and a second door opening, which are arranged side by side. A flip-open door is provided on the first side wall and is used to open or close the first doorway; A sliding door, which is disposed on the first side wall, is used to open or close the second doorway; A guide rail is installed on the first side wall, and the length direction of the guide rail is set along the height direction perpendicular to the main body of the carriage; A slider assembly is fixedly connected to the sliding door and is used to slide along the length of the guide rail.
2. The carriage according to claim 1, characterized in that, There are three guide rails: a first guide rail located above the sliding door, a second guide rail located below the sliding door, and a third guide rail located on the side of the sliding door. The sliding block assembly comprises three components: a first sliding block assembly, a second sliding block assembly, and a third sliding block assembly. The first sliding block assembly is partially slidably disposed within a first guide rail and is fixedly connected to the sliding door. The second sliding block assembly is partially slidably disposed within a second guide rail and is fixedly connected to the sliding door. The third sliding block assembly is partially slidably disposed within a third guide rail and is fixedly connected to the sliding door.
3. The carriage according to claim 2, characterized in that, The first slider assembly and the second slider assembly include: a curved plate and a roller, the roller being located inside the guide rail, and the two ends of the curved plate being connected to the roller and the sliding door, respectively.
4. The carriage according to claim 2, characterized in that, The third slider assembly includes: The third roller is located inside the guide rail; The first connecting plate is connected to the third roller; The intermediate plate is connected to the first connecting plate and is hinged to the first connecting plate; The second connecting plate is connected to the sliding door and hinged to the middle plate.
5. The carriage according to claim 1, characterized in that, The sliding door moves away from the direction of the flip-open door.
6. The carriage according to claim 2, characterized in that, The third guide rail is located on the side of the sliding door away from the flip-open door.
7. The carriage according to claim 1, characterized in that, The flip-open door includes: The main body of the hinged door is used to close the second doorway after it is opened; Hinges, which are respectively connected to the hinged door body and the carriage body; The main body of the folding door rotates around the hinge to open or close the second doorway.
8. The carriage according to claim 7, characterized in that, The hinges are a pair, and the pair of hinges are spaced apart from each other along the height direction of the main body of the carriage.
9. The carriage according to claim 7, characterized in that, The hinge is located on the side of the folding door body facing the sliding door.
10. A freight vehicle comprising a cargo compartment as described in any one of claims 1 to 9, the cargo compartment being used for storing goods.