In-place detection device of turnover mechanism and unmanned distribution vehicle

Abstract

The utility model discloses an in-place detection device of a turnover mechanism and an unmanned distribution vehicle. The in-place detection device comprises a fixed plate; the hinged end of the turnover pressing plate is hinged to the fixed plate, and the free end of the turnover pressing plate extends into the storage space; the elastic push rod is used for pushing out the overturning pressing plate in the direction deviating from the fixing plate; the limit switch and the contact are arranged between the fixed plate and the turnover pressing plate; when in the in-place posture, the overturning pressing plate is in contact with the contact to trigger the limiting switch, and when in the out-of-place posture, a gap is formed between the overturning pressing plate and the limiting switch. When the cage box is pushed in place, the overturning pressing plate can make contact with a contact of the limiting switch to trigger the limiting switch to send an in-place signal, whether the cage box is pushed in place or not is detected, and when the cage box is withdrawn from the storage space, the overturning pressing plate can reset into the storage space under the elastic action of the elastic push rod; in this way, in-place detection is carried out during next operation, it is guaranteed that the cage box is installed in place during overturning operation, and potential safety hazards are avoided.

Description

Technical Field

[0001] This application relates to the field of unmanned delivery vehicle technology, and in particular to a positioning detection device for a flipping mechanism and an unmanned delivery vehicle. Background Technology

[0002] In order to make delivery more intelligent, companies in the logistics industry are trying out unmanned delivery services. Unmanned delivery vehicles are a product that has emerged in response to the current last-mile delivery market and the development of autonomous driving. They are used to complete the transfer and delivery of cages and boxes.

[0003] To improve the efficiency of loading and unloading cages, unmanned delivery vehicles have begun to use a tipping mechanism to quickly transport cages onto the vehicle. The specific workflow involves pushing the cage into the tipping mechanism, which is then activated to tip the cage onto the vehicle. Currently, the tipping mechanism of unmanned delivery vehicles lacks a device to detect whether the cage has moved into place. If the cage is not fully pushed into the tipping mechanism, it may fall during the tipping process, posing a safety hazard. Utility Model Content

[0004] The purpose of this application is to provide a positioning detection device for a flipping mechanism and an unmanned delivery vehicle, so as to solve the technical problem that the flipping mechanism of the existing unmanned delivery vehicle does not have a device to detect whether the cage has moved into position. If the cage is not fully pushed into the flipping mechanism, the cage may fall off during the flipping process, which poses a safety hazard.

[0005] To achieve the above objectives, one technical solution adopted in this application is:

[0006] A positioning detection device is provided for a flipping mechanism, wherein the flipping mechanism has a storage space arranged inside, and the positioning detection device includes:

[0007] Fixing plate;

[0008] The flip-up pressure plate includes a hinged end and a free end arranged opposite to each other. The hinged end is hinged to the fixed plate, and the free end extends into the storage space.

[0009] An elastic push rod is arranged between the fixed plate and the flipping pressure plate, and the elastic push rod is used to push the flipping pressure plate away from the fixed plate.

[0010] A limit switch, including a contact, the contact being arranged between the fixed plate and the flip-over pressure plate;

[0011] The flipping plate has a fixed position and a non-fixed position. When it is in the fixed position, the flipping plate contacts the contact and triggers the limit switch. When it is in the non-fixed position, a gap is formed between the flipping plate and the limit switch.

[0012] In one or more embodiments, the fixing plate is provided with a first strip hole for mounting the elastic push rod. The first strip hole extends along the direction from the hinge end to the free end. One end of the elastic push rod is connected to the fixing plate, and the other end passes through the first strip hole.

[0013] In one or more embodiments, the resilient push rod includes:

[0014] A pin is connected at one end to the flipping pressure plate and at the other end extends through the first strip hole in the direction pointing toward the fixed plate.

[0015] A limiting nut is sleeved on the end of the pin that is away from the flipping pressure plate, and the limiting nut interferes with the first strip hole;

[0016] A compression spring is sleeved on the pin, and the compression spring is located between the flipping pressure plate and the fixed plate.

[0017] In one or more embodiments, a shock-absorbing buffer block is further included, which is arranged on the side of the fixed block facing the flipping pressure plate. When the flipping pressure plate is in the positioned position, the flipping pressure plate presses against the shock-absorbing buffer block.

[0018] In one or more embodiments, the fixing plate is provided with a second strip hole for mounting the shock-absorbing block. The second strip hole extends in the direction from the hinge end to the free end. The shock-absorbing block is mounted on the fixing plate by bolts passing through the second strip hole, so that the position of the shock-absorbing block is adjustable.

[0019] In one or more embodiments, the limit switch is arranged on the fixed plate or the flip-over pressure plate.

[0020] In one or more embodiments, the limit switch is disposed on the fixed plate, and the limit switch includes:

[0021] The switch holder is arranged on the fixed plate;

[0022] The swing arm has one end connected to the switch base and the other end extending towards the flip-up pressure plate and connected to the contact.

[0023] The swing arm has a third strip-shaped hole extending along its length, and the swing arm is fixed to the switch base by a bolt passing through the third strip-shaped hole, so that the position of the contact is adjustable.

[0024] In one or more embodiments, the fixed plate has a flange extending toward the flipping pressure plate at one end near the hinge end, and the hinge end of the flipping pressure plate is hinged to the flange via a hinge.

[0025] In one or more embodiments, a pair of elastic push rods are symmetrically arranged with respect to the centerline of the flip-over pressure plate, and the limit switch is arranged at the symmetrical position of the pair of elastic push rods.

[0026] To achieve the above objectives, another technical solution adopted in this application is:

[0027] An unmanned delivery vehicle is provided, including a positioning detection device for the flipping mechanism described in any of the above embodiments.

[0028] The advantages of this application, which differ from existing technologies, are:

[0029] The flipping pressure plate of the positioning detection device extends into the storage space of the flipping mechanism. When the cage is pushed into the storage space, the flipping pressure plate can be pressed against the fixed plate until the cage is pushed into place. At this point, the flipping pressure plate can contact the contact of the limit switch, thereby triggering the limit switch to send a positioning signal, thus detecting whether the cage has been pushed into place. When the cage is removed from the storage space, the flipping pressure plate can be reset to the storage space under the elastic force of the elastic push rod, so as to perform positioning detection in the next operation, ensuring that the cage is installed in place during the flipping operation and avoiding safety hazards. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of one embodiment of the positioning detection device of the flipping mechanism of this application;

[0032] Figure 2 This is an exploded structural diagram of one embodiment of the positioning detection device of the flipping mechanism of this application;

[0033] Figure 3 This is a schematic diagram of one embodiment of the positioning detection device of the flipping mechanism of this application in operation.

[0034] Figure label:

[0035] Fixed plate 10; flange 101; first strip hole 102; second strip hole 103;

[0036] Flip-over pressure plate 20; hinged end 201; free end 202;

[0037] Elastic push rod 30; pin 301; limit nut 302; compression spring 303;

[0038] Limit switch 40; contact 401; switch base 402; swing arm 403; third strip hole 4031;

[0039] Hinges 50;

[0040] Shock-absorbing buffer block 60;

[0041] L-shaped bracket 70. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0043] To address the safety hazard posed by the lack of a cage placement detection device in the current unmanned delivery vehicle's tipping mechanism, the applicant provides a placement detection device applicable to the tipping mechanism. This device sends a placement signal when the cage is pushed into place, ensuring that the tipping mechanism performs the tipping operation only after the cage is properly installed, thus avoiding safety hazards.

[0044] Specifically, please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of one embodiment of the positioning detection device of the flipping mechanism of this application. Figure 2 This is an exploded structural diagram of one embodiment of the positioning detection device of the flipping mechanism of this application.

[0045] like Figure 1 and Figure 2 As shown, the positioning detection device includes a fixed plate 10, a flipping pressure plate 20, and a limit switch 40.

[0046] The fixing plate 10 is used to be installed on the flipping mechanism.

[0047] The flipping pressure plate 20 includes a hinged end 201 and a free end 202 relative to the device. The hinged end 201 is hinged to the fixed plate 10, and the free end 202 extends into the storage space of the flipping mechanism.

[0048] An elastic push rod 30 is arranged between the fixed plate 10 and the flipping pressure plate 20. The elastic push rod 30 is used to push the flipping pressure plate 20 away from the fixed plate 10.

[0049] The limit switch 40 includes a contact 401, which is arranged between the fixed plate 10 and the flip plate 20. The limit switch 40 is used to detect the position of the flip plate 20.

[0050] Specifically, the flip plate 20 can be in a ready position and a non-ready position. When in the ready position, the flip plate 20 can contact the contact 401 of the limit switch 40 to trigger the limit switch 40. When in the non-ready position, a gap can be formed between the flip plate 20 and the contact 401.

[0051] Understandably, since the free end 202 of the flipping pressure plate 20 extends into the storage space of the flipping mechanism, when the cage is pushed into the storage space, the flipping pressure plate 20 can be pressed against the fixed plate 10, thereby driving the flipping pressure plate 20 to rotate toward the fixed plate 10. When the cage is pushed into place, the flipping pressure plate 20 can contact the contact 401 to trigger the limit switch 40 to send an in-place signal, thereby realizing the detection of whether the cage has been pushed into place.

[0052] When the cage is removed from the storage space, the flipping pressure plate 20 can also be reset into the storage space under the elastic force of the elastic push rod 30, so as to perform a positioning detection in the next operation.

[0053] Please see Figure 3 , Figure 3 This is a schematic diagram of one embodiment of the positioning detection device of the flipping mechanism of this application in its working state. Figure 3 As shown, when the flipping pressure plate 20 is pushed into place by the cage and driven to press against the fixed plate 10, the flipping pressure plate 20 can contact the contact 401 to send a positioning signal. After receiving the positioning signal, the control unit of the unmanned vehicle can drive the flipping mechanism to start flipping the cage, thereby ensuring that the cage is installed in place during the flipping operation and avoiding safety hazards.

[0054] In this embodiment, in order to increase the space between the fixed plate 10 and the flip plate 20 to facilitate the arrangement of the elastic push rod 30 and the limit switch 40, a flange 101 is arranged at one end of the fixed plate 10 near the hinge end 201 of the flip plate 20. The flange 101 extends toward the flip plate 20, and the hinge end 201 of the flip plate 20 is hinged to the flange 101 through a hinge 50.

[0055] In other embodiments, the fixed plate 10 and the flipping pressure plate 20 can also be directly hinged together, and the effect of this embodiment can also be achieved by adjusting the structure of the fixed plate 10.

[0056] like Figure 1and Figure 2 As shown, in this embodiment, the fixed plate 10 is provided with a first strip hole 102 for mounting the elastic push rod 30. The first strip hole 102 extends along the direction from the hinge end 201 of the flipping pressure plate 20 to the free end 202, so that when the flipping pressure plate 20 rotates, it can drive the elastic push rod 30 to move along the first strip hole 102.

[0057] Specifically, the elastic push rod 30 includes a pin 301, a limiting nut 302, and a compression spring 303. One end of the pin 301 is fixed to the flipping pressure plate 20, and the other end extends through the first strip hole 102 in the direction pointing towards the fixed plate 10. The limiting nut 302 is sleeved on the end of the pin 301 opposite to the flipping pressure plate 20, and the limiting nut 302 interferes with the first strip hole 102. The compression spring 303 is sleeved on the pin 301 and is located between the flipping pressure plate 20 and the fixed plate 10.

[0058] The pin 301 can be restricted within the first slotted hole 102 by the limiting nut 302. The engagement between the pin 301 and the first slotted hole 102 serves as a guide. When the flipping pressure plate 20 is pressed, it can drive the pin 301 to move, and at the same time, the compression spring 303 is compressed. When the pressure on the flipping pressure plate 20 is removed, the compression spring 303 can drive the flipping pressure plate 20 to reset under the action of elasticity.

[0059] It should be noted that this embodiment only shows one structure of the elastic push rod 30 that can be applied to this application. In other embodiments, the elastic push rod 30 can also adopt other structures. For example, the elastic push rod 30 can be an elastic telescopic rod, whose two ends can be hinged to the fixed plate 10 and the flip pressure plate 20 respectively, which can also achieve the effect of this embodiment.

[0060] In order to avoid excessive impact force of the flip plate 20 on the limit switch 40, the positioning detection device in this embodiment also includes a shock-absorbing buffer block 60. The shock-absorbing buffer block 60 is arranged on the side of the fixed block facing the flip plate 20. When the flip plate 20 is in the positioning posture, the flip plate 20 presses the shock-absorbing buffer block 60.

[0061] Understandably, when the flipping pressure plate 20 is pressed and rotates towards the fixed plate 10, it first contacts the shock-absorbing buffer block 60. After being decelerated by the shock-absorbing buffer block 60, it then contacts the limit switch 40, effectively preventing damage to the sensor caused by excessive impact force.

[0062] Furthermore, in order to adapt to the needs of different application scenarios, the position of the shock-absorbing buffer block 60 in this embodiment is adjustable. Specifically, the fixing plate 10 is provided with a second strip hole 103 for installing the shock-absorbing buffer block 60. The second strip hole 103 extends along the direction from the hinge end 201 to the free end 202. The shock-absorbing buffer block 60 is installed on the fixing plate 10 by bolts passing through the second strip hole 103.

[0063] Understandably, when the shock-absorbing buffer block 60 moves towards the hinge end 201 along the extension direction of the second strip hole 103 to adjust its position, the rotating angle of the flipping pressure plate 20 when it contacts the shock-absorbing buffer block 60 is smaller; similarly, when the shock-absorbing buffer block 60 moves towards the free end 202 to adjust its position, the rotating angle of the flipping pressure plate 20 when it contacts the shock-absorbing buffer block 60 is larger, thus meeting the needs of different scenarios.

[0064] like Figure 2 As shown, in this embodiment, the limit switch 40 is arranged on the fixed plate 10. The limit switch 40 includes a switch base 402 and a swing arm 403. The switch base 402 is fixed to the fixed plate 10 by an L-shaped bracket 70. One end of the swing arm 403 is connected to the switch base 402, and the other end extends toward the flip-over pressure plate 20 and is connected to the contact 401.

[0065] In order to make the position of the contact 401 adjustable, the swing arm 403 is provided with a third strip hole 4031 extending along the length direction, and the swing arm 403 is fixed to the switch base 402 by bolts passing through the third strip hole 4031.

[0066] Understandably, by adjusting the rotation angle of the swing arm 403 and the position of the bolt in the third strip hole 4031, the height and angle of the contact 401 can be adjusted, thereby ensuring that the limit switch 40 can contact the flip plate 20 when the cage is pushed into place, meeting the needs of different application scenarios.

[0067] It should be noted that in this embodiment, the limit switch 40 is installed on the fixed plate 10. In other embodiments, the limit switch 40 can also be installed on the flip plate 20, or the limit switch 40 can be installed in other positions, as long as the contact 401 is located between the fixed plate 10 and the flip plate 20. All of these can achieve the effect of this embodiment.

[0068] like Figures 1 to 3 As shown, in order to ensure the movement stability of the flip plate 20 and the detection accuracy of the limit switch 40, a pair of elastic push rods 30 are installed on the flip plate 20 symmetrically arranged with respect to the center line of the flip plate 20, and the limit switch 40 is arranged at the symmetrical line position of the pair of elastic push rods 30.

[0069] In other embodiments, the number and installation position of the elastic push rod 30 and the limit switch 40 can be adjusted according to the specific working conditions, and the effect of this embodiment can be achieved.

[0070] This application also provides an unmanned delivery vehicle using the above-mentioned positioning detection device. The unmanned delivery vehicle is equipped with a tilting mechanism for loading cages. The fixing plate 10 of the positioning detection device can be fixed on the tilting mechanism. In the non-loading state, the tilting pressure plate 20 of the positioning detection device can extend into the storage space. The limit switch 40 of the positioning detection device can be connected to the controller of the unmanned delivery vehicle to realize the detection of the cage being pushed into position.

[0071] It should be understood by those skilled in the art that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0072] The foregoing description of specific exemplary embodiments of this application is for illustrative and explanatory purposes. These descriptions are not intended to limit this application to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of this application and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of this application, as well as various different choices and variations. The scope of this application is intended to be defined by the claims and their equivalents.

Claims

1. A positioning detection device for a flipping mechanism, characterized in that, The flipping mechanism has a storage space inside, and the positioning detection device includes: Fixing plate; The flip-up pressure plate includes a hinged end and a free end arranged opposite to each other. The hinged end is hinged to the fixed plate, and the free end extends into the storage space. An elastic push rod is arranged between the fixed plate and the flipping pressure plate, and the elastic push rod is used to push the flipping pressure plate away from the fixed plate. A limit switch, including a contact, the contact being arranged between the fixed plate and the flip-over pressure plate; The flipping plate has a fixed position and a non-fixed position. When it is in the fixed position, the flipping plate contacts the contact and triggers the limit switch. When it is in the non-fixed position, a gap is formed between the flipping plate and the limit switch.

2. The positioning detection device according to claim 1, characterized in that, The fixed plate is provided with a first strip hole for mounting the elastic push rod. The first strip hole extends along the direction from the hinge end to the free end. One end of the elastic push rod is connected to the fixed plate, and the other end passes through the first strip hole.

3. The positioning detection device according to claim 2, characterized in that, The elastic push rod includes: A pin is connected at one end to the flipping pressure plate and at the other end extends through the first strip hole in the direction pointing toward the fixed plate. A limiting nut is sleeved on the end of the pin that is away from the flipping pressure plate, and the limiting nut interferes with the first strip hole; A compression spring is sleeved on the pin, and the compression spring is located between the flipping pressure plate and the fixed plate.

4. The positioning detection device according to claim 1, characterized in that, It also includes a shock-absorbing buffer block, which is arranged on the side of the fixed block facing the flipping pressure plate. When the flipping pressure plate is in the position, the flipping pressure plate presses the shock-absorbing buffer block.

5. The positioning detection device according to claim 4, characterized in that, The fixed plate is provided with a second strip hole for mounting the shock-absorbing buffer block. The second strip hole extends along the direction from the hinge end to the free end. The shock-absorbing buffer block is mounted on the fixed plate by bolts passing through the second strip hole, so that the position of the shock-absorbing buffer block is adjustable.

6. The positioning detection device according to claim 1, characterized in that, The limit switch is arranged on the fixed plate or the flip-over pressure plate.

7. The positioning detection device according to claim 6, characterized in that, The limit switch is arranged on the fixed plate, and the limit switch includes: The switch holder is arranged on the fixed plate; The swing arm has one end connected to the switch base and the other end extending towards the flip-up pressure plate and connected to the contact. The swing arm has a third strip-shaped hole extending along its length, and the swing arm is fixed to the switch base by a bolt passing through the third strip-shaped hole, so that the position of the contact is adjustable.

8. The positioning detection device according to claim 1, characterized in that, The fixed plate has a flange extending toward the flipping pressure plate at one end near the hinge end. The hinge end of the flipping pressure plate is hinged to the flange via a hinge.

9. The positioning detection device according to claim 1, characterized in that, It includes a pair of elastic push rods symmetrically arranged with respect to the center line of the flip-over pressure plate, and the limit switch is arranged at the position of the symmetrical line of the pair of elastic push rods.

10. An unmanned delivery vehicle, characterized in that, The device includes the positioning detection device of the flipping mechanism according to any one of claims 1 to 9.

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