Automatic rebound structure of picking vehicle platform door

Abstract

The utility model relates to the technical fields of door lock especially pick up car platform door automatic resilience structure, it includes upper rotator and lower fixed body, the upper rotator includes inner rod body and outer sleeve, the lower fixed body includes two vertical rods and horizontal column, the bottom end of two vertical rods is fixedly connected with the both ends of horizontal column, the part of inner rod body bottom end is sleeved in the inside of one vertical rod, the inside rotationally connected with conical stick bearing has at outer sleeve bottom end, the inside of conical stick bearing and the outer surface key connection of inner rod body. The utility model has torsion spring, one end is fixed on the outer sleeve, the other end is fixed on the plastic piece of vertical rod, opens the door after, torsion will let the door will directly automatically rebound, plus magnet adsorption, automatic door closing will be more firm, solve the effect that the magnet still can realize automatic door closing demand after failure or loss in the use process.

Description

Technical Field

[0001] This utility model relates to the technical field of door locks, and in particular to an automatic spring-back structure for a picking vehicle platform door. Background Technology

[0002] Currently, some platform doors cannot be held in place by magnets alone, and they are prone to opening on their own when walking. After opening, the door needs to be manually closed properly, as magnetic door locks are not easy to lock securely. Utility Model Content

[0003] To facilitate locking the door securely, this utility model provides an automatic spring-back structure for the platform door of a harvesting vehicle.

[0004] The automatic spring-back structure for the platform door of a harvesting vehicle provided by this utility model adopts the following technical solution: An automatic spring-loaded structure for a picking vehicle platform door includes an upper rotating body and a lower fixed body. The upper rotating body includes an inner rod and an outer sleeve. The lower fixed body includes two vertical rods and a horizontal bar. The bottom end of the two vertical rods is fixedly connected to both ends of the horizontal bar. A portion of the bottom end of the inner rod is sleeved inside one of the vertical rods.

[0005] By adopting the above technical solution, it is easier to lock the door, and the automatic closing of the door is more secure. While the vehicle is running, the door will not shake continuously, and the need for automatic door closing is still met even when the magnet is missing, malfunctioning, or lost.

[0006] Preferably, a conical roller bearing is rotatably connected to the bottom end of the outer sleeve, the interior of the conical roller bearing is keyed to the outer surface of the inner rod, the inner rod is U-shaped, a torsion spring is fixedly connected to the top of the outer sleeve, a plastic part is fixedly connected to the top of the outer sleeve, the interior of the plastic part is fixedly connected to the outer surface of one end of the inner rod, and the other end of the torsion spring is fixedly connected to the plastic part.

[0007] By adopting the above technical solution, some doors can only rotate, and closing them relies solely on gravity to spring back, which is rather stiff. With the addition of conical roller bearings, the problem of jamming and failure to spring back after prolonged use due to reliance solely on gravity is avoided, significantly reducing the frictional resistance during the opening and closing process.

[0008] Preferably, a pull rod is fixedly connected to the outer surface of the inner rod body, and a slide rail is formed on the outer surface of one of the vertical rods. The outer surface of the pull rod is slidably connected to the inside of the slide rail. The slide rail is in the shape of a slide. A protrusion is formed at the top of the other vertical rod, and a groove corresponding to the protrusion is formed at the other end of the inner rod body. When the pull rod is located at the lowest end of the slide rail, the protrusion is engaged with the inside of the groove.

[0009] By adopting the above technical solution, the tightness of the door after locking is enhanced through the matching of grooves and protrusions.

[0010] Preferably, the tops of the protrusion and the groove are respectively fixedly connected with mutually attractive magnets.

[0011] By adopting the above technical solution, the automatic door closing is made more secure through magnetic adsorption. The "double insurance" mechanism of torsion spring, groove and magnet ensures that even if the magnet fails or falls off accidentally, the core torsion spring and groove can still independently complete the automatic door closing function.

[0012] In summary, this utility model has the following beneficial technical effects: 1. This device is equipped with a torsion spring, one end of which is fixed to the outer tube and the other end is fixed to the plastic part of the vertical rod. After the door is opened, the torque will cause the door to automatically spring back. With the addition of a magnet, the automatic closing will be more secure. At the same time, it solves the problem of the need to achieve automatic closing even if the magnet fails or is lost during use. 2. This device is equipped with a tapered roller bearing. At the platform of the harvesting cart, where the outer sleeve connects to the vertical rod, a tapered roller bearing is added. This makes the opening and closing of the door and its rotation smoother and more fluid. It also prevents the door from getting stuck or not springing back due to gravity alone after long-term use. The connection uses a torsion spring and a bearing for double protection, allowing the door to automatically spring back smoothly. 3. This device is equipped with magnets, which make the automatic door closing more secure through magnetic attraction. Moreover, the combination of torsion springs and convex and concave grooves makes it easier and less expensive to modify than a fake electronic lock, and it can be adapted to the platform door of the picking vehicle more quickly. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of an automatic spring-back structure for a picking vehicle platform door according to this utility model; Figure 2 This is a front view of an automatic spring-back structure for a picking vehicle platform door according to this utility model; Figure 3 This is a side view of an automatic spring-back structure for a picking vehicle platform door according to this utility model; Figure 4 yes Figure 2 A sectional view along line AA. Figure 5 yes Figure 2 Sectional view along line BB; Figure 6 This is a schematic diagram of the slide rail 5 in the automatic rebound structure of the platform door of a picking vehicle according to this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. Inner rod; 2. Lower fixed body; 21. Vertical rod; 22. Horizontal bar; 3. Outer sleeve; 4. Conical roller bearing; 5. Slide rail; 6. Torsion spring; 7. Pull rod; 8. Groove; 9. Magnet. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0016] This utility model discloses an automatic spring-back structure for the platform door of a picking vehicle.

[0017] Reference Figure 1 , 2 It includes an upper rotating body and a lower fixed body 2. The upper rotating body includes an inner rod body 1 and an outer sleeve 3. The lower fixed body 2 includes two vertical rods 21 and a horizontal bar 22. The bottom end of the two vertical rods 21 is fixedly connected to both ends of the horizontal bar 22. A part of the bottom end of the inner rod body 1 is sleeved inside one of the vertical rods 21. The door is opened and locked by rotating the upper rotating body.

[0018] Reference Figure 2 , 4 The bottom end of the outer sleeve 3 is rotatably connected to a conical roller bearing 4. The inside of the conical roller bearing 4 is keyed to the outer surface of the inner rod 1. The top of the outer sleeve is a plastic part, which is fixed to the inner rod 1. The bottom end is an iron part, which is fixed to one of the vertical rods 21. The conical roller bearing 4 is located inside the outer sleeve 3, above one of the vertical rods 21, and is connected to the inner rod 1.

[0019] Reference Figure 2 , 3 The inner rod 1 is U-shaped, and a torsion spring 6 is fixedly connected to the top of the outer sleeve 3. A plastic part is fixedly connected to the top of the outer sleeve 3. The inside of the plastic part is fixedly connected to the outer surface of one end of the inner rod 1, and the other end of the torsion spring 6 is fixedly connected to the plastic part. The overall rotation and rebound structure of the door is a rounded rectangle.

[0020] Reference Figure 1 A pull rod 7 is fixedly connected to the outer surface of the inner rod 1. A slide rail 5 is opened on the outer surface of one of the vertical rods 21. The outer surface of the pull rod 7 is slidably connected to the inside of the slide rail 5. The slide rail 5 can be flat or have different heights at both ends. With the pull of the torsion spring 6, the door can automatically rebound.

[0021] Reference Figure 6 When the slide 5 is in the shape of a slide, and the lever 7 is at the lowest end of the slide 5, even if there is an external force shaking it, it cannot move in the vertical up and down direction, but can only move horizontally left and right at the bottom of the slide 5, thus preventing the door from shaking open during the operation of the picking vehicle.

[0022] Reference Figure 1 Another vertical rod 21 has a protrusion 8 at its top end and a groove corresponding to the protrusion 8 at the other end of the inner rod 1. When the pull rod 7 is at the lowest end of the slide 5, the protrusion 8 is engaged with the inside of the groove, which works with the slide 5 to prevent the door from moving horizontally or left and right. This prevents the door from moving up and down or left and right when it is closed, thus locking the door.

[0023] Reference Figure 1 , Figure 5 The top of the protrusion 8 and the groove are respectively fixedly connected to magnets 9 that attract each other. The magnets 9 are magnets with strong attraction. When the door is closed, the magnets 9 attract each other, causing the pull rod 7 and the vertical rod 21 to attract each other, thereby strengthening the tightness of the door.

[0024] The implementation principle of the automatic spring-back structure for the platform door of a picking vehicle in this embodiment of the utility model is as follows: The connection of the outer sleeve 3 uses a torsion spring 6 and a conical roller bearing 4 for double safety, allowing the upper rotating body of the door to automatically and smoothly rebound. One end of the torsion spring 6 is fixed to the outer sleeve tube, and the other end of the torsion spring 6 is fixed to the plastic block of the outer sleeve 3. After the door is opened, the torque will cause the upper rotating body of the door to automatically rebound, and with the addition of the magnet 9, the automatic closing will be more secure. When the lever 7 is at the lowest end of the slide 5, it cannot move vertically up and down even if there is an external force shaking it. It can only move horizontally left and right at the bottom of the slide 5, thus preventing the door from swinging open during the operation of the picking vehicle.

[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. An automatic spring-back structure for a picking cart platform door, characterized in that: It includes an upper rotating body and a lower fixed body (2). The upper rotating body includes an inner rod body (1) and an outer sleeve (3). The lower fixed body (2) includes two vertical rods (21) and a horizontal bar (22). The bottom end of the two vertical rods (21) is fixedly connected to both ends of the horizontal bar (22). A part of the bottom end of the inner rod body (1) is sleeved inside one of the vertical rods (21).

2. The automatic spring-back structure for the platform door of a picking vehicle according to claim 1, characterized in that: The bottom end of the outer sleeve (3) is rotatably connected to a conical roller bearing (4), and the interior of the conical roller bearing (4) is keyed to the outer surface of the inner rod (1).

3. The automatic spring-back structure for the platform door of a picking vehicle according to claim 2, characterized in that: The inner rod (1) is U-shaped. A torsion spring (6) is fixedly connected to the top of the outer sleeve (3). A plastic part is fixedly connected to the top of the outer sleeve (3). The inside of the plastic part is fixedly connected to the outer surface of one end of the inner rod (1). The other end of the torsion spring (6) is fixedly connected to the plastic part.

4. The automatic spring-back structure for the platform door of a picking vehicle according to claim 3, characterized in that: A pull rod (7) is fixedly connected to the outer surface of the inner rod (1), and a slide rail (5) is provided on the outer surface of one of the vertical rods (21), and the outer surface of the pull rod (7) is slidably connected to the inside of the slide rail (5).

5. The automatic spring-back structure for the platform door of a picking vehicle according to claim 4, characterized in that: The slide (5) is shaped like a slide.

6. The automatic spring-back structure for the platform door of a picking vehicle according to claim 5, characterized in that: The top of the other vertical rod (21) is provided with a protrusion (8), and the other end of the inner rod (1) is provided with a groove corresponding to the protrusion (8). When the pull rod (7) is located at the lowest end of the slide (5), the protrusion (8) is engaged with the inside of the groove.

7. The automatic spring-back structure for the platform door of a picking vehicle according to claim 6, characterized in that: The tops of the protrusion (8) and the groove are respectively fixedly connected to magnets (9) that attract each other.

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