Unmanned flow car cargo fixing device

Abstract

The utility model relates to the technical field of the logistics vehicle, and disclose a kind of goods fixing device for unmanned logistics vehicle, including logistics vehicle and detachably mounted fixing device, fixing device includes top cap and pressing plate, top cap is supported in the logistics vehicle by support rod, by the setting of several telescopic compression components, after logistics box is well stacked, it can be through the telescopic outer cover of intercommunication, by the liquid preferential flow to the position of smaller resistance away, make telescopic pressing block adapt to different height's logistics box, i.

Description

Technical Field

[0001] This utility model relates to the field of logistics vehicle technology, specifically to a cargo fixing device for unmanned logistics vehicles. Background Technology

[0002] In the logistics and transportation sector, logistics vehicles need to stack logistics boxes inside the vehicle when transporting them. However, during vehicle operation, sudden braking, acceleration, turning, or road bumps can generate huge inertial forces or impacts, easily causing the stacks to tilt, scatter, or even collapse. This not only damages the goods but may also threaten the safety of the vehicle and personnel. Furthermore, because logistics boxes vary in size, the height of the top at the end of the stacking process differs, making the securing process difficult.

[0003] Currently, common fixing methods include straps, ropes, or rigid support rods. While straps and ropes are simple to use, they suffer from problems such as limited fixing points, inaccurate pre-tension control, and poor restraint on the top and sides of the stack, making them prone to loosening under long-term vibration. Rigid support rods, on the other hand, cannot adapt to the top surface contours of stacks at different heights. When the stack height varies or the top is uneven, the support rod cannot provide comprehensive and uniform clamping force, posing a safety hazard. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a cargo fixing device for unmanned logistics vehicles, which has the advantage of being able to fix palletized logistics boxes of different heights.

[0005] To achieve the above objectives, this utility model provides the following technical solution: including a logistics vehicle and a detachable fixing device, the fixing device including a top cover and a pressure plate, the top cover being supported inside the logistics vehicle by a support rod, the four corners of the pressure plate sliding inside the support rod, and the pressure plate being provided with a plurality of adaptive pressing components; The clamping assembly includes a telescopic jacket and a telescopic pressure block. The telescopic pressure block slides inside the telescopic jacket, and a hose auxiliary interface is also provided at the top of the telescopic jacket.

[0006] Preferably, a hollow connecting strip is fixed on the pressure plate, and a plurality of hose main interfaces and inlets are provided on the connecting strip. The number of hose main interfaces is consistent with the number of the clamping components and they correspond one-to-one. A hose is installed between the hose main interface and the corresponding hose secondary interface on the telescopic outer sleeve.

[0007] Preferably, the top cover has a hydraulic oil chamber inside, and the bottom of the hydraulic oil chamber has an outlet. A pipe is provided between the outlet and the inlet. The pipe is arranged in a spiral shape. This spiral structure is designed to adapt to the dynamic changes in the distance between the top cover and the pressure plate, providing the system with the necessary degree of freedom for expansion and contraction.

[0008] Preferably, a pressing plate is slidably disposed in the hydraulic oil chamber, and a pressing screw is rotatably disposed in the top cover. The pressing screw is threadedly engaged with the pressing plate, and the pressing screw extends outward to the outside, with a rotating handle disposed on its outer portion.

[0009] Preferably, nut rings are also fixed at the four corners of the pressure plate, and these nut rings are located inside the support rod.

[0010] Preferably, the support rod has a sliding groove inside, and a synchronous motor and a motor screw are installed in the sliding groove. The synchronous motor is fixedly installed on the top of the sliding groove, and the motor screw rotates in the sliding groove and is threadedly engaged with the nut ring of the pressure plate.

[0011] Preferably, the top cover is also provided with a button, which is electrically connected to the synchronous motor and is used to control the synchronous motor to start, rotate forward, rotate in reverse and stop simultaneously.

[0012] Preferably, the two support rods on the side are fixed together by a base rod, and the bottom of the base rod may optionally be provided with an anti-slip pad or a roller.

[0013] Compared with the prior art, this utility model provides a cargo fixing device for unmanned logistics vehicles, which has the following beneficial effects: 1. The cargo securing device for this unmanned logistics vehicle, through the arrangement of several retractable clamping components, allows the retractable clamping blocks to adapt to logistics boxes of different heights after the logistics boxes are stacked. This is achieved by using interconnected retractable outer sleeves and the preferential flow of liquid to the location with less resistance. The retractable clamping blocks can dynamically compress the stack of logistics boxes of different heights by abutting against each other, while the retractable clamping blocks that are not abutted extend to their maximum length, which can restrict the sides of the stack. Through the combined action of both, most of the stack inside the logistics vehicle can be compressed, avoiding the risk of the logistics boxes tipping over during sudden braking, impact, and acceleration of the vehicle. The remaining small parts that are not compressed will also not be at risk of tipping over due to the restraint of the surrounding compressed stack. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the fixing device structure of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This is a schematic diagram of the half-section structure of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A; Figure 6This is a schematic diagram of the internal structure of the support rod of this utility model; Figure 7 This is a schematic diagram of the pressing component structure of this utility model.

[0015] In the diagram: 10, logistics vehicle; 20, top cover; 201, hydraulic oil chamber; 2011, outlet; 202, extrusion screw; 2021, rotating handle; 203, extrusion plate; 21, pressure plate; 211, connecting bar; 2111, main hose interface; 2112, inlet; 22, support rod; 221, slide groove; 23, bottom rod; 30, telescopic outer sleeve; 301, secondary hose interface; 31, telescopic pressure block; 40, motor screw; 41, synchronous motor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] like Figure 1-7 As shown, the device includes a logistics vehicle 10 and a detachable fixing device. The fixing device is installed inside the cargo compartment of the logistics vehicle 10, and its size matches the size of the cargo compartment. Bolts can also be installed on the top and sides of the fixing device to fix it inside the cargo compartment through the abutment of the bolts, or it can be directly embedded into the cargo compartment, so that it can be installed and removed from different vehicles. The fixing device includes a top cover 20 and a pressure plate 21. The top cover 20 is supported inside the logistics vehicle 10 by a support rod 22. The four corners of the pressure plate 21 slide inside the support rod 22. The pressure plate 21 is provided with several self-adaptive clamping components. The clamping components include a telescopic outer sleeve 30 and a telescopic pressure block 31. The telescopic pressure block 31 slides inside the telescopic outer sleeve 30. The top of the telescopic outer sleeve 30 is also connected to a hose secondary interface 301.

[0018] By setting up several retractable clamping components, after the logistics boxes are stacked, the retractable outer sleeves 30, which are interconnected, allow the liquid to preferentially flow to the location with less resistance, so that the retractable clamping blocks 31 can adapt to logistics boxes of different heights. That is, by abutting the retractable clamping blocks 31, the stack of logistics boxes of different heights can be dynamically clamped, while the retractable clamping blocks 31 that are not abutted extend to their maximum length, which can restrict the sides of the stack. Through the combined action of the two, most of the stack inside the logistics vehicle can be clamped, avoiding the risk of the logistics boxes tipping over during the vehicle's sudden braking, impact, and acceleration. The remaining small parts that are not clamped will also not be at risk of tipping over under the restraint of the surrounding clamped stack.

[0019] A hollow connecting strip 211 is fixed on the pressure plate 21. The connecting strip 211 has several main hose interfaces 2111 and inlets 2112. The number of main hose interfaces 2111 corresponds to the number of clamping components. A hose is installed between the main hose interface 2111 and the corresponding secondary hose interface 301 on the telescopic sleeve 30. The connecting strip 211 connects all the telescopic sleeves 30 to each other. When hydraulic oil is injected into the telescopic sleeve 30, the hydraulic oil preferentially flows into the unobstructed telescopic sleeve 30 of the telescopic pressure block 31 until the telescopic pressure block 31 abuts against the object. When the product is subjected to resistance, it stops, and the hydraulic oil will flow into the other unresisted telescopic sleeve 30. The top cover 20 has a hydraulic oil chamber 201 inside, and the bottom of the hydraulic oil chamber 201 has an outlet 2011. A pipe is provided between the outlet 2011 and the inlet 2112. The pipe is arranged in a spiral shape. This spiral structure is designed to adapt to the dynamic changes in the distance between the top cover 20 and the pressure plate 21, and to provide the necessary degree of freedom for the system to extend and retract. The hydraulic oil chamber 201, the connecting bar 211 and the telescopic sleeve 30 are all filled with hydraulic oil to control the extension and retraction of the telescopic sleeve 30 and the telescopic pressure block 31.

[0020] A pressing plate 203 is slidably arranged inside the hydraulic oil chamber 201, and a pressing screw 202 is rotatably arranged inside the top cover 20. The pressing screw 202 and the pressing plate 203 are threaded together. The pressing screw 202 extends outward to the outside, and a rotating handle 2021 is provided on its outer part. The feed of hydraulic oil is controlled by manually rotating the rotating handle 2021. Alternatively, a motor can be installed on the pressing screw 202, and its rotation can be directly controlled by the motor.

[0021] Nut rings are fixed at the four corners of the pressure plate 21. These nut rings are located inside the support rod 22 and slide within the support rod 22. The support rod 22 has a sliding groove 221 inside, and a synchronous motor 41 and a motor screw 40 are installed in the sliding groove 221. The synchronous motor 41 is fixedly installed on the top of the sliding groove 221, and the motor screw 40 rotates in the sliding groove 221 and is threadedly engaged with the nut rings of the pressure plate 21. A button is also provided on the top cover 20, which is electrically connected to the synchronous motor 41 and is used to control the synchronous motor 41 to start, rotate forward, rotate backward, and turn off simultaneously. The speed and other parameters of the four synchronous motors 41 are consistent, and they all start synchronously. This can control the pressure plate 21 to move up and down in a horizontal position, that is, to keep the pressure plate 21 always horizontal and avoid jamming.

[0022] The two side support rods 22 are fixed together by a base rod 23. The bottom of the base rod 23 can be optionally equipped with an anti-slip pad or a roller, which can be selected according to the user's needs. Since the fixing device matches the vehicle's cargo compartment (the same size), it will not shake inside the compartment. When the user needs to frequently remove the fixing device and install it on different vehicles, a roller-type base rod 23 should be used for easy disassembly and assembly. When the user needs to use the fixing device on the same vehicle for a long time, an anti-slip pad can be selected. After the fixing device is installed, it is not easy for it to slip, and the installation stability is better. After the logistics boxes are stacked, the rear door or side door of the vehicle should be closed to keep the cargo compartment closed. At this time, the fixing device is the same size as the cargo compartment, so it will not slip.

[0023] Working Principle: In use, simply place the fixing device directly inside the logistics vehicle, then place the logistics boxes inside. After stacking, due to the varying sizes and volumes of the boxes, the tops will typically be uneven, with a certain range of height difference. At this point, the synchronous motor 41 can be started by pressing a button to rotate forward. This will cause the pressure plate 21 to move downwards, allowing it to contact the highest logistics box. Then, the handle 2021 can be rotated, causing the extrusion screw 202 to drive the extrusion plate 203 to extrude the hydraulic oil in the hydraulic oil chamber 201. The hydraulic oil enters the connecting strip 211 through the spiral pipe and then flows into all the telescopic sleeves 30. The telescopic sleeves 30 will then move downwards under their own weight and the thrust of the hydraulic oil. Since all the telescopic sleeves 30 are connected... The telescopic blocks 211 are interconnected, so when the bottom of one of the telescopic blocks 31 abuts against an object such as a cardboard box, the telescopic block 31 generates a certain resistance. At this time, the hydraulic oil will preferentially flow into the other telescopic outer sleeves 30 without resistance until most of the telescopic blocks 31 abut against items or the telescopic blocks 31 extend to their maximum distance. At this time, the abutment of the telescopic blocks 31 can dynamically compress the stack of logistics boxes of different heights, while the telescopic blocks 31 that are not abutted extend to their maximum length, which can restrict the sides of the stack. Through the combined action of the two, most of the stack inside the logistics vehicle can be compressed, avoiding the risk of the logistics boxes tipping over during the vehicle's sudden braking, impact, and acceleration. The other small parts that are not compressed will also not be at risk of tipping over under the restriction of the surrounding compressed stacks.

[0024] When it is necessary to open the fixing device, simply start the synchronous motor 41 to rotate in the opposite direction, which will drive the pressure plate 21 to move upward to the top. At this time, the logistics boxes are all loosened and can be taken directly. There is no need to retract the telescopic pressure block 31. Before using the fixing device again, simply rotate the extrusion screw 202 in the opposite direction to retract the telescopic pressure block 31, so as to achieve the effect of quickly loosening the logistics boxes for operation.

[0025] In summary, this unmanned logistics vehicle cargo securing device, through the arrangement of several retractable clamping components, allows the retractable clamping blocks 31 to adapt to logistics boxes of different heights after the logistics boxes are stacked. This is achieved by using interconnected retractable outer sleeves 30 and the liquid preferentially flowing away from the position with less resistance. Specifically, the retractable clamping blocks 31 can dynamically clamp the stack of logistics boxes of different heights by abutting. The retractable clamping blocks 31 that are not abutted extend to their maximum length, which can restrict the sides of the stack. Through the combined action of both, most of the stack inside the logistics vehicle can be clamped, avoiding the risk of the logistics boxes tipping over during sudden braking, impact, and acceleration of the vehicle. The remaining small parts that are not clamped will also not be at risk of tipping over due to the restraint of the surrounding clamped stack.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cargo securing device for an unmanned logistics vehicle, comprising a logistics vehicle (10) and a detachable securing device, characterized in that: The fixing device includes a top cover (20) and a pressure plate (21). The top cover (20) is supported in the logistics vehicle (10) by a support rod (22). The four corners of the pressure plate (21) slide in the support rod (22). The pressure plate (21) is provided with a number of adaptive clamping components. The clamping assembly includes a telescopic jacket (30) and a telescopic pressure block (31). The telescopic pressure block (31) slides inside the telescopic jacket (30). The top of the telescopic jacket (30) is also connected to a hose sub-port (301).

2. The cargo securing device for an unmanned logistics vehicle according to claim 1, characterized in that: A hollow connecting strip (211) is fixed on the pressure plate (21). Several main hose interfaces (2111) and inlets (2112) are provided on the connecting strip (211). The number of main hose interfaces (2111) is consistent with the number of the clamping components and they correspond one-to-one. A hose is installed between the main hose interface (2111) and the corresponding secondary hose interface (301) on the telescopic outer sleeve (30).

3. A cargo securing device for an unmanned logistics vehicle according to claim 2, characterized in that: The top cover (20) has a hydraulic oil chamber (201) inside, and an outlet (2011) is provided at the bottom of the hydraulic oil chamber (201). A pipe is provided between the outlet (2011) and the inlet (2112). The pipe is spirally arranged to adapt to the dynamic changes in the distance between the top cover (20) and the pressure plate (21), providing the system with the necessary degree of freedom for expansion and contraction.

4. A cargo securing device for an unmanned logistics vehicle according to claim 3, characterized in that: A pressing plate (203) is slidably disposed in the hydraulic oil chamber (201), and a pressing screw (202) is rotatably disposed in the top cover (20). The pressing screw (202) and the pressing plate (203) are threadedly engaged. The pressing screw (202) extends outward to the outside, and a rotating handle (2021) is disposed on its outer part.

5. A cargo securing device for an unmanned logistics vehicle according to claim 1, characterized in that: Nut rings are also fixed at the four corners of the pressure plate (21), and these nut rings are located inside the support rod (22).

6. A cargo securing device for an unmanned logistics vehicle according to claim 5, characterized in that: The support rod (22) has a groove (221) inside. A synchronous motor (41) and a motor screw (40) are installed in the groove (221). The synchronous motor (41) is fixedly installed on the top of the groove (221). The motor screw (40) rotates in the groove (221) and is threaded with the nut ring of the pressure plate (21).

7. A cargo securing device for an unmanned logistics vehicle according to claim 6, characterized in that: The top cover (20) is also provided with a button that is electrically connected to the synchronous motor (41) and is used to control the synchronous motor (41) to start, rotate, reverse and shut down simultaneously.

8. A cargo securing device for an unmanned logistics vehicle according to claim 1, characterized in that: The two support rods (22) on the side are fixed together by a base rod (23), and the bottom of the base rod (23) may be provided with an anti-slip pad or a roller.

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