Container side sliding door convenient to use
By setting vertical sliding grooves and positioning rods at the top and bottom of the sliding door, combined with springs and drive components, the stability problem of the sliding door in the open state is solved, and the ease of use is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TEPLER (ZHEJIANG) AUTOMOTIVE TECHNOLOGY CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-15
AI Technical Summary
Existing sliding doors lack stability when open, affecting their usability.
Vertical sliding grooves are set at the top and bottom of the sliding door. A positioning rod is connected in the sliding groove and equipped with a spring. The positioning rod is driven by the drive assembly, and the spring force is used to maintain the stability of the door.
It achieves stability of the sliding door when it is open, making it convenient to operate and use.
Smart Images

Figure CN224240797U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo box technology, and more specifically, it relates to a convenient cargo box side sliding door. Background Technology
[0002] A cargo box is the compartment of a truck used to carry goods. A fully enclosed cargo box provides better protection for the goods, shielding them from wind and sun.
[0003] Chinese Patent Publication No. CN215476456U discloses a fully enclosed cargo box with a sliding door, comprising a cargo box body, a side opening on the side of the cargo box body, and a side sliding door corresponding to the side opening. The top of the side sliding door is slidably mounted on the side of the cargo box body via a hanging rail. Sealing components are respectively provided at the edge of the side opening of the cargo box body and the edge of the side sliding door. The side sliding door is hung on the side of the cargo box body via the hanging rail, and the opening and closing of the door are both achieved by moving along the side surface of the cargo box body.
[0004] The above-mentioned technical solution does not occupy additional space, reducing the requirements for loading and unloading space and enabling more convenient operation in narrow warehouses. Furthermore, the lifting rail is located on the upper part of the cargo box, making it less susceptible to blockage by foreign objects and dust, and easier to clean and maintain. However, in actual use, it can only position the door panel when closed via a fixed latch, and cannot guarantee the stability of the sliding door panel when open, affecting its performance under different working conditions.
[0005] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Utility Model Content
[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a convenient and easy-to-use cargo box sliding door.
[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a convenient cargo box sliding door, including a door frame, a fixed door panel fixed to the door frame, and a sliding door that slides within the door frame. The top and bottom of the sliding door are provided with vertical sliding grooves, and positioning rods are slidably connected in both sliding grooves. A spring is fixedly connected between the end of the positioning rod and the inner wall of the end of the sliding groove. The end of the positioning rod extends out of the sliding groove and abuts against the inner wall of the door frame. The utility model also includes a drive assembly for driving the two positioning rods to move relative to each other.
[0008] The present invention is further configured such that: an outer handle is provided on the outer surface of the sliding door of the drive assembly, the outer handle includes two horizontally arranged first crossbars and a first vertical bar provided at the ends of the two first crossbars, the drive assembly includes an inner handle provided inside the outer handle, the inner handle slides in the outer handle in a direction perpendicular to the surface of the sliding door, a pull rope is fixedly connected to the end of the positioning rod facing the spring, the other end of the pull rope is fixedly connected to the inner handle, a through groove is provided in the sliding door for the pull rope to pass through, and the pull rope is in a tensioned state.
[0009] The present invention is further configured such that: the inner handle includes two second crossbars disposed on opposite sidewalls of the first crossbar, a second vertical bar is fixedly connected between the outer ends of the second crossbars, guide grooves are provided on opposite sidewalls of the two first crossbars along their length direction, and guide strips that slide in the guide grooves are provided on the outer surface of the second crossbars.
[0010] The present invention is further configured such that: the sliding door is provided with an installation groove connected to the through groove between the two first horizontal bars, a guide wheel is rotatably connected in the installation groove, and one end of the two pull ropes passes around the guide wheel and is fixedly connected to the second vertical bar.
[0011] The present invention is further configured such that: pulleys are provided at the top and bottom ends of the sliding door; guide rails that cooperate with the pulleys are provided on the inner walls of the top and bottom of the door frame; a rubber pad is provided at the end of the positioning rod extending out of the sliding groove; and a groove for the guide rail to be embedded is provided on the surface of the rubber pad.
[0012] This utility model has the following beneficial effects: A fixing latch is provided between the door frame and the sliding door to fix the sliding door when it is closed. The fixing latch can adopt various existing technical solutions, which will not be described in detail in this embodiment. When it is necessary to open the cargo box, the fixing latch is opened, and under the action of the drive component, the two positioning rods are driven to move relative to each other. The spring is compressed, so that the ends of the positioning rods are separated from the door frame, thereby enabling the sliding door to slide. When the sliding door slides to the desired position, the drive component stops working, and under the action of the spring force, the two positioning rods are reset and their ends are pressed against the door frame, thereby ensuring the stability of the sliding door when it is open. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of this embodiment;
[0014] Figure 2 This is a three-dimensional structural diagram of the sliding door in this embodiment;
[0015] Figure 3 This is a cross-sectional structural diagram of the sliding door in this embodiment;
[0016] Figure 4 This is a schematic diagram of the structure of the outer handle and the inner handle in this embodiment;
[0017] Figure 5 This is a schematic diagram of the positioning rod in this embodiment.
[0018] Attached diagram descriptions: 1. Door frame; 2. Fixed door panel; 3. Side sliding door; 4. Sliding groove; 5. Positioning rod; 6. Spring; 7. Outer handle; 8. First horizontal bar; 9. First vertical bar; 10. Inner handle; 11. Pull rope; 12. Second horizontal bar; 13. Second vertical bar; 14. Guide groove; 15. Guide strip; 16. Guide wheel; 17. Pulley; 18. Rubber pad. Detailed Implementation
[0019] The present invention will be further described in detail below with reference to the accompanying drawings.
[0020] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.
[0021] As shown in the figure, a convenient cargo box sliding door includes a door frame 1, a fixed door panel 2 fixed to the door frame 1, and a sliding door 3 that slides within the door frame 1. Vertical sliding grooves 4 are provided at the top and bottom of the sliding door 3. Positioning rods 5 are slidably connected in both sliding grooves 4. A spring 6 is fixedly connected between the end of the positioning rod 5 and the inner wall of the end of the sliding groove 4. The end of the positioning rod 5 extends out of the sliding groove 4 and abuts against the inner wall of the door frame 1. The device also includes a drive assembly for driving the two positioning rods 5 to move relative to each other.
[0022] A locking latch is provided between the door frame 1 and the sliding door 3 to secure the sliding door 3 when it is closed. The locking latch can adopt various existing technical solutions, which will not be described in detail in this embodiment. When it is necessary to open the cargo box, the locking latch is opened, and under the action of the drive component, the two positioning rods 5 are driven to move relative to each other. The spring 6 is compressed, so that the ends of the positioning rods 5 are separated from the door frame 1, thereby enabling the sliding door 3 to slide. When the sliding door 3 slides to the desired position, the drive component stops working, and under the action of the spring force of the spring 6, the two positioning rods 5 are reset and their ends are pressed against the door frame 1, thereby ensuring the stability of the sliding door 3 when it is open.
[0023] An outer handle 7 is provided on the outer surface of the sliding door 3 of the drive assembly. The outer handle 7 includes two horizontally arranged first crossbars 8 and a first vertical bar 9 provided at the ends of the two first crossbars 8. The drive assembly includes an inner handle 10 provided inside the outer handle 7. The inner handle 10 slides inside the outer handle 7 in a direction perpendicular to the surface of the sliding door 3. A pull rope 11 is fixedly connected to the end of the positioning rod 5 facing the spring 6. The other end of the pull rope 11 is fixedly connected to the inner handle 10. A through groove is provided inside the sliding door 3 for the pull rope 11 to pass through. The pull rope 11 is in a tensioned state.
[0024] The inner handle 10 includes two second crossbars 12 disposed on opposite sidewalls of the first crossbar 8. A second vertical bar 13 is fixedly connected between the outer ends of the second crossbars 12. Guide grooves 14 are provided on opposite sidewalls of the two first crossbars 8 along their length direction. A guide bar 15 that slides in the guide groove 14 is provided on the outer surface of the second crossbar 12.
[0025] When it is necessary to open the sliding door 3, the staff puts their hand into the inner handle 10 and grips the inner handle 10. This causes the inner handle 10 to move outward. Under the action of the pull rope 11, the two positioning rods 5 slide relative to each other. The sliding door 3 can be pulled without any other operation, which is convenient.
[0026] The sliding door 3 has an installation groove connected to the through groove between the two first horizontal bars 8. A guide wheel 16 is rotatably connected in the installation groove. One end of the two pull ropes 11 passes around the guide wheel 16 and is fixedly connected to the second vertical bar 13 to reduce wear on the pull ropes 11 and improve their performance and service life.
[0027] The sliding door 3 is equipped with pulleys 17 at both the top and bottom ends. The inner walls of the top and bottom of the door frame 1 are equipped with guide rails (not shown in the figure) that cooperate with the pulleys 17. The end of the positioning rod 5 that extends out of the sliding groove 4 is equipped with a rubber pad 18. The surface of the rubber pad 18 is provided with a groove for the guide rail to be embedded, so as to further improve the friction between the end of the positioning rod 5 and the guide rail and ensure the stability of the sliding door 3 in various states.
[0028] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.
Claims
1. A convenient sliding side door for a cargo box, characterized in that: The system includes a door frame (1), a fixed door panel (2) fixed to the door frame (1), and a sliding door (3) sliding inside the door frame (1). The top and bottom of the sliding door (3) are provided with vertical sliding grooves (4). Positioning rods (5) are slidably connected in both sliding grooves (4). A spring (6) is fixedly connected between the end of the positioning rod (5) and the inner wall of the end of the sliding groove (4). The end of the positioning rod (5) extends out of the sliding groove (4) and abuts against the inner wall of the door frame (1). The system also includes a drive assembly for driving the two positioning rods (5) to move relative to each other.
2. The convenient sliding side door for a cargo box according to claim 1, characterized in that: An outer handle (7) is provided on the outer surface of the drive assembly sliding door (3). The outer handle (7) includes two horizontally arranged first crossbars (8) and a first vertical bar (9) at the ends of the two first crossbars (8). The drive assembly includes an inner handle (10) disposed inside the outer handle (7). The inner handle (10) slides inside the outer handle (7) in a direction perpendicular to the surface of the sliding door (3). A pull rope (11) is fixedly connected to the end of the positioning rod (5) facing the spring (6). The other end of the pull rope (11) is fixedly connected to the inner handle (10). A through groove is provided inside the sliding door (3) for the pull rope (11) to pass through. The pull rope (11) is in a tensioned state.
3. A convenient sliding side door for a cargo box according to claim 2, characterized in that: The inner handle (10) includes two second crossbars (12) disposed on opposite sidewalls of the first crossbar (8). A second vertical bar (13) is fixedly connected between the outer ends of the second crossbars (12). Guide grooves (14) are provided on opposite sidewalls of the two first crossbars (8) along their length direction. A guide strip (15) that slides in the guide groove (14) is provided on the outer surface of the second crossbar (12).
4. A convenient sliding side door for a cargo box according to claim 3, characterized in that: The sliding door (3) is located between the two first horizontal bars (8) and has an installation groove that communicates with the through groove. A guide wheel (16) is rotatably connected in the installation groove. One end of the two pull ropes (11) passes around the guide wheel (16) and is fixedly connected to the second vertical bar (13).
5. A convenient sliding side door for a cargo box according to claim 4, characterized in that: The sliding door (3) is provided with pulleys (17) at the top and bottom ends. The inner walls of the top and bottom of the door frame (1) are provided with guide rails that cooperate with the pulleys. The end of the positioning rod (5) extending out of the sliding groove (4) is provided with a rubber pad (18). The surface of the rubber pad (18) is provided with a groove for the guide rail to be embedded.