Low-cost unpowered container article fixing device
Through the design of the organ bag and rotary switch, the elastic force and air pressure of the organ bag are used to fix the cargo, which solves the problem of stable fixation of cargo boxes of different sizes in the cargo hold of the drone, and achieves a low-cost, powerless, and recyclable fixation effect.
Patent Information
- Application Number
- CN202422352882.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-26
AI Technical Summary
When the existing UAV cargo hold fixing mechanism faces stacking cargo boxes of different sizes and shapes, it cannot effectively fix the central recessed position, resulting in the cargo being easily squirmed during transportation, affecting stability.
The combination of an organ bag and a rotary switch is adopted to realize unpowered air filling through the compression and automatic extension of the organ bag. The elastic force and air pressure of the organ bag are used to fix the cargo. The organ bag controls the opening and closing of the air port through the rotary switch to achieve air circulation and closure.
The stable fixation of the goods is achieved, avoiding the shaking and dumping of the goods during transportation, and no additional power is required, the cost is low, and the material is light and recyclable.
Smart Images
Figure CN223059595U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of unmanned aerial vehicle (UAV) material distribution, in particular to a low-cost unpowered cargo box article fixing device. Background Technique
[0002] Due to the jitter during the transportation of cargo UAVs and the problem that the fuselage tilts upward or downward during takeoff and landing, at present, a specific fixing mechanism is required to fix the goods when placing them in the UAV cargo hold. The current fixing mechanism for the UAV cargo hold consists of a chassis and a fixing rope net. During use, the cargo boxes are placed flat on the chassis and stacked on top of each other. Then, the fixing rope net is covered on the top of the cargo boxes and the chassis is fixed, so that the fixing rope net can press and limit the cargo boxes by being tightened. Finally, the chassis is fixed to the bottom of the cargo hold to achieve the fixing effect.
[0003] However, when stacking multiple cargo boxes with different sizes and shapes, due to the differences in shape and stacking method, in many cases, the cargo boxes will not form a complete rectangular structure after being stacked neatly, but will form many undulating surfaces, and the undulating positions and height differences vary with the changes of the cargo boxes. Since the fixing rope net will be pulled and involved with each other to form a whole plane or arc surface after being tightened, when fixing the cargo boxes, it will only fit with the outermost end corners of the cargo boxes to form a limit. For the cargo boxes located in the middle and in the sunken position, the fixing rope net will directly pass through the top of the cargo box and fit with the higher cargo boxes on both sides during installation, resulting in a reduction in the limiting effect on the cargo box. As a result, the cargo boxes are prone to the problem of moving back and forth within the fixing rope net during transportation, reducing their fixing stability. Therefore, there is an urgent need for a device to fix the goods in the cargo box to prevent the goods from tipping over during UAV handling. Content of the Utility Model
[0004] The purpose of the utility model is to provide a low-cost unpowered cargo box article fixing device to solve the defects mentioned in the above background technique.
[0005] To achieve the above object, a low-cost non-powered cargo box item fixing device is provided, including: a cargo box, a bellows bag, and a rotary switch. On the left and right side walls inside the cargo box, a bellows bag is respectively fixed. The air inlet of the bellows bag is connected to the rotary switches arranged on the left and right walls of the cargo box. The rotary switch includes: a fixed cover, a rubber ring, a sealing plug, and a knob. The middle of the fixed cover is a hollow structure. A through hole and several air holes are provided at the center of the outer shell of the fixed cover. The rubber ring is fixedly installed inside the sealing plug, and the sealing plug is arranged inside the rubber ring. The screw rod of the knob passes through the through hole and is connected to the sealing plug. The areas of the fixed cover and the sealing plug are larger than the area of the air holes. The air inlet is fixed between the sealing plug and the fixed cover.
[0006] Further, the diameter of the middle part of the screw rod is smaller than that of both ends, and the outer wall of the middle part of the screw rod is a smooth structure.
[0007] Further, threads are provided on the outer walls of both ends of the screw rod.
[0008] Further, the inner wall of the sealing plug is a smooth structure.
[0009] Further, there is a gap between the bellows bag and the upper and lower walls of the cargo box.
[0010] Compared with the prior art, the beneficial effect of the present utility model is that the space is filled by the compression and automatic extension of the bellows belt, without the need for additional power for air filling. The filling material is air, which is light in weight, can be recycled, and has a good buffering effect. Description of the Drawings
[0011] Figure 1 It is a schematic structural diagram of the present utility model;
[0012] Figure 2 It is a schematic sectional view of the structure of the present utility model;
[0013] Figure 3 It is a schematic sectional view of the knob structure of the present utility model;
[0014] Figure 4 It is a schematic diagram of the fixed cover structure of the present utility model;
[0015] Figure 5 It is a schematic diagram of the air hole opening structure of the present utility model;
[0016] Figure 6 It is a schematic diagram of the air hole closing structure of the present utility model.
[0017] Reference numerals in the figure: 1, cargo box; 2, bellows bag; 3, rotary switch; 4, fixed cover; 5, rubber ring; 6, sealing plug; 7, knob; 8, screw; 9, air hole; 10, air port. Detailed implementation mode
[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0019] Please refer to Figures 1 - 4 , the present invention provides a low-cost unpowered cargo box 1 article fixing device, including: a cargo box 1, a bellows bag 2 and a rotary switch 3. Bellows bags 2 are respectively fixed on the left and right side walls inside the cargo box 1, and the air ports of the bellows bags 2 are connected to the rotary switches 3 arranged on the left and right walls of the cargo box 1.
[0020] The rotary switch 3 includes: a fixed cover 4, a rubber ring 5, a sealing plug 6 and a knob 7. The middle of the fixed cover 4 is a hollow structure. A through hole and several air holes 9 are provided at the center of the outer shell of the fixed cover 4. The rubber ring 5 is fixedly installed inside the sealing plug 6, and the sealing plug 6 is arranged inside the rubber ring 5. The screw 8 of the knob 7 passes through the through hole and is connected to the rubber ring 5. The areas of the fixed cover 4 and the sealing plug 6 are larger than the area of the air hole 9.
[0021] The air port 10 is fixed in the middle of the sealing plug 6 and the fixed cover 4.
[0022] The diameter of the middle part of the screw 8 is smaller than that of the two ends. The outer wall of the middle part of the screw 8 is a smooth structure, preventing the sealing plug 6 from rotating when the knob 7 is rotated to press the sealing plug 6, resulting in wear of the rubber sealing plug 6.
[0023] Threads are provided on the outer walls of the two end parts of the screw 8. The inner wall of the sealing plug 6 is a smooth structure. When the knob 7 is rotated to install the sealing plug 6, the threaded section of the rotary switch 3 is screwed in, and then the two threaded sections are disengaged.
[0024] This design can realize that when the knob 7 moves forward and backward, the sealing plug 6 moves with the knob 7; when the moving sealing plug 6 presses the rubber sealing plug 6, the sealing plug 6 will not rotate with the knob 7, so as to avoid excessive wear of the rubber sealing plug 6.
[0025] As Figure 5As shown, when the rotary switch 3 is in the state where the air hole 9 is open, the diameter difference between the top end and the middle part of the screw rod 8 pulls the sealing plug 6 to move, so that the sealing plug 6 is separated from the rubber ring 5, and air enters the bellows bag 2.
[0026] As Figure 6 shown, when the rotary switch 3 is in the state where the air hole 9 is closed, the top end of the screw rod 8 pushes the sealing plug 6 to move, so that the sealing plug 6 presses the rubber ring 5, and air cannot enter the bellows bag 2.
[0027] The bellows bag 2 itself has a natural elongation length. When the bellows bag 2 is deformed by force, an elastic force to restore the natural length will be generated. When no items are loaded in the cargo box 1, the bellows bag 2 is not squeezed, and the rotary switch 3 is in the open state. The air inside and outside the bellows bag 2 circulates naturally, and the bellows bag 2 maintains its natural elongation length. At this time, the air volume in the bellows bag 2 is the largest; when items are loaded, the bellows bag 2 is deformed by the items and discharges a part of the air. At this time, the rotary switch 3 is closed, and the air volume in the bellows bag 2 remains constant. At this time, if the items tend to shake and exert a squeezing force on the bellows bag 2, the elastic force of the bellows bag 2 itself and the pressure of the air inside the bellows bag 2 will prevent the movement of the items, so that the items are kept stable without shaking; when the items are taken out and the rotary switch 3 is not opened, the pressure generated by the air pressure inside and outside the bellows bag 2 and the elastic force of the bellows bag 2 itself are in a balanced state, and the length of the bellows bag 2 does not change significantly. After the rotary switch 3 is opened, due to the action of the elastic force for the bellows bag 2 to restore its natural length, the bellows bag 2 stretches, the internal space of the bellows bag 2 increases, the air pressure inside the bellows bag 2 drops, and high-pressure air from the outside enters the bellows bag 2. When the bellows bag 2 restores its natural length and there is no pressure difference in the natural air circulation inside and outside the bellows bag 2, the bellows bag 2 will maintain its natural elongation length.
[0028] The bellows bag 2 is fixed to the inner wall of the box by 3m double-sided tape, with a little gap left at the top and bottom, so that the bellows bag 2 can move back and forth. When loading goods, open the valve, squeeze the bellows bag 2 to create space for the items to flow out. After the items are put in, the bellows bag 2 is naturally inflated to complete the clamping of the goods. At the same time, close the air hole 9 to complete the fixation of the goods.
[0029] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-cost unpowered cargo box article fixing device, comprising: A cargo box (1), a bellows bag (2), and a rotary switch (3). On the left and right side walls inside the cargo box (1), a bellows bag (2) is respectively fixed. The air inlet (10) of the bellows bag (2) is connected to the rotary switch (3) provided on the left and right walls of the cargo box (1). It is characterized in that: the rotary switch (3) includes: a fixed cover (4), a rubber ring (5), a sealing plug (6), and a knob (7). The middle of the fixed cover (4) is a hollow structure. There is a through hole and several air holes (9) at the center of the outer shell of the fixed cover (4). The rubber ring (5) is fixedly installed inside the sealing plug (6). The sealing plug (6) is arranged inside the rubber ring (5). The screw rod (8) of the knob (7) passes through the through hole and is connected to the sealing plug (6). The areas of the fixed cover (4) and the sealing plug (6) are larger than the area of the air holes (9). The air inlet (10) is fixed between the sealing plug (6) and the fixed cover (4).
2. The low-cost non-powered cargo box article fixing device according to claim 1, characterized in that: The diameter of the middle part of the screw rod (8) is smaller than that of both ends, and the outer wall of the middle part of the screw rod (8) is a smooth structure.
3. The low-cost non-powered cargo box article fixing device according to claim 1, characterized in that: Threads are provided on the outer walls of both end parts of the screw rod (8).
4. The low-cost non-powered cargo box article fixing device according to claim 3, characterized in that: The inner wall of the sealing plug (6) is a smooth structure.
5. The low-cost power-free cargo box article fixing device according to claim 1, characterized in that: There is a gap between the bellows bag (2) and the upper and lower walls of the cargo box (1).