Locking structure for detachable carriage and chassis

Abstract

The utility model discloses a locking structure for a detachable carriage and a chassis, which relates to the technical field of logistics transfer equipment and comprises inclined strut structures connected to two opposite sides of the bottom of the carriage and support frame devices connected to two opposite sides of a chassis frame. Fixed wheels and fixed locking devices are connected to the supporting frame devices. When the carriage is connected with the chassis, in the descending process of the carriage, the inclined strut structures firstly make contact with the fixed wheels, the carriage moves along the bevel edges of the inclined strut structures under the influence of gravity and appearance till the carriage lower beam makes contact with the chassis frame, and the carriage and the chassis can be rapidly connected for matched positioning; the inclined strut structure is locked and fixed through the fixing and locking device, and rapid connection of the carriage and the frame is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of logistics transfer equipment, and particularly relates to a locking structure for a detachable carriage and a chassis. Background Art

[0002] With the continuous growth of urban logistics and distribution demands, light trucks are increasingly widely used in the logistics industry, especially in aspects such as "last-mile" delivery, express delivery, and urban sorting. Improving the quality, efficiency, and reducing costs of logistics is an important task in the development of modern logistics.

[0003] Currently, to improve the loading and unloading efficiency, a method of loading and unloading the carriage along with the goods is proposed. The fixed / separation method between the carriage and the vehicle is one of the important structures required to implement this loading and unloading method.

[0004] In the prior art, the carriage and the vehicle frame are connected by bolts. When connecting, it takes time to position each bolt hole, and this bolt connection requires a large amount of manual operation and is relatively cumbersome. Summary of the Utility Model

[0005] To solve the problems of the prior art, the utility model provides a locking structure for a detachable carriage and a chassis, including: a diagonal bracing structure connected to opposite sides of the bottom of the carriage and a support frame device connected to opposite sides of the chassis frame;

[0006] Fixed wheels and a fixed locking device are connected to the support frame device, and the diagonal bracing structure contacts the fixed wheels for quick cooperation when the carriage and the chassis frame are connected;

[0007] The fixed locking device is used to fix the diagonal bracing structure.

[0008] Further, the support frame device includes:

[0009] A support plate connected to the side of the chassis frame;

[0010] A bottom plate, the side of which is vertically connected to the support plate;

[0011] Two side plates are vertically connected to the bottom plate, and the fixed wheels are rotatably connected between the two side plates;

[0012] The fixed locking device is connected to the bottom plate.

[0013] Further, the diagonal bracing structure includes:

[0014] A reinforcing plate, the reinforcing plate is a right trapezoidal structure, the bottom of the reinforcing plate is a bevel structure, the top of the reinforcing plate is connected to the bottom of the carriage, and the small ends of the reinforcing plates on opposite sides are opposite;

[0015] The fixed locking device locks the reinforcing plate between the two side plates.

[0016] Further, sealing plates are connected to the peripheral sides of the reinforcing plate.

[0017] Further, the fixed locking device all includes:

[0018] A power unit, connected to the bottom plate;

[0019] A locking pin, connected to the output shaft of the power unit;

[0020] Holes are formed on both of the two side plates, a locking hole is formed on the reinforcing plate, a sleeve is connected to the locking hole, and the power unit is used to insert the locking pin into the hole and the sleeve, so as to fix the reinforcing plate.

[0021] Further, the power unit is a cylinder.

[0022] Further, the fixed locking device further includes:

[0023] An installation plate, having a U-shaped structure, connected to the bottom plate, and the end face of the power unit is connected to the outer wall of the installation plate away from the side plate through a transition plate;

[0024] A bushing, connected between the two side walls of the installation plate, and the output shaft of the power unit is located inside the bushing.

[0025] Further, an unlocking sensor and a locking sensor are connected to the bushing, which are respectively used to identify the telescopic state of the locking pin in the bushing to judge the unlocking and locking states between the locking pin and the reinforcing plate, and feed back an unlocking signal and a locking signal to a signal feedback device.

[0026] Further, secondary limiting blocks are connected to the opposite side walls of the two side plates.

[0027] Further, the two secondary limiting blocks are in a V shape.

[0028] The beneficial effects of the technical solution provided by the present utility model are as follows: In the present utility model, a diagonal brace structure connected to the opposite sides of the bottom of the carriage and a support frame device connected to the opposite sides of the chassis frame are provided. A fixed wheel and a fixed locking device are connected to the support frame device. When the carriage is connected to the chassis, during the descending process, the diagonal brace structure first contacts the fixed wheel. Affected by gravity and shape, the carriage moves along the hypotenuse of the diagonal brace structure until the lower beam of the carriage contacts the chassis frame, and the carriage and the chassis can be quickly connected and positioned. After the carriage is placed, the diagonal brace structure is locked through the fixed locking device, so as to fix between the carriage and the chassis frame, realizing the quick connection between the carriage and the frame, and the operation is simple. Description of the Drawings

[0029] Figure 1 is a schematic structural diagram of a locking structure for a detachable carriage and a chassis provided by the present utility model;

[0030] Figure 2 is a schematic structural diagram of a diagonal brace structure provided by the present utility model;

[0031] Figure 3 is a schematic structural diagram of a support frame device provided by the present utility model;

[0032] Figure 4 is a schematic structural diagram of a fixed locking device provided by the present utility model;

[0033] Figure 5 is a connection diagram of a diagonal brace structure and a carriage provided by the present utility model.

[0034] Reference numerals: 1 - lower beam of the carriage; 2 - sealing plate; 3 - reinforcing plate; 4 - sleeve; 5 - chassis frame; 6 - support plate; 7 - side plate; 8 - bottom plate; 9 - fixed wheel; 10 - pin shaft; 11 - secondary limit block; 12 - mounting plate; 13 - power unit; 14 - locking pin; 15 - transition plate; 16 - bushing; 17 - unlocking sensor; 18 - locking sensor; 19 - carriage; 20 - lower pipe beam of the carriage. Detailed Description of the Embodiment

[0035] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0036] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0037] It should be noted that in this embodiment, the orientation or positional relationship indicated by "bottom", "top", "left", "right", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present application. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0038] It should also be noted that in this embodiment, unless otherwise clearly specified and defined, the terms "arrangement" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] See Figures 1-5 , a locking structure for a detachable carriage and a chassis, comprising: diagonal brace structures connected to opposite sides of the bottom of the carriage and support frame devices connected to opposite sides of the chassis frame 5. Fixed wheels 9 are rotatably connected to the support frame devices, and fixed locking devices are also connected to the support frame devices.

[0040] During actual use, at least one set of diagonal brace structures can be arranged on the left and right sides of the bottom of the carriage respectively, and at least one set of support frame devices can be arranged on the left and right sides of the chassis frame 5 respectively. When the carriage is connected to the chassis, the carriage body is lowered by a hydraulic lifting device. If there is a deviation in the left-right direction between the carriage and the chassis frame, during the lowering process, the diagonal brace structure first contacts the fixed wheel 9. Affected by gravity and shape, the carriage moves along the hypotenuse of the diagonal brace structure until the lower beam 1 of the carriage contacts the chassis frame 5. After the carriage is placed, the diagonal brace structure is locked by the fixed locking device, thereby fixing the carriage and the chassis frame.

[0041] Through the diagonal brace structures on opposite sides of the bottom of the carriage and the fixed wheels on opposite sides of the chassis frame, the carriage and the chassis can be quickly positioned in cooperation, and then the diagonal brace structure is fixed by the fixed locking device to achieve the quick connection of the carriage and the frame, with simple operation.

[0042] Furthermore, the support frame devices each include: a support plate 6 and a bottom plate 8. The side wall of the support plate 6 is fixedly connected to the side part of the chassis frame 5. One side edge of the bottom plate 8 is perpendicularly connected to the support plate 6. Two side plates 7 are vertically and fixedly connected to the top of the bottom plate 8. The fixed wheel 9 is rotatably connected between the two side plates 7, and the fixed wheel 9 is located at one end of the side plate 7 close to the chassis frame 5. Through holes 19 are opened at one ends of the two side plates 7 far from the chassis frame 5.

[0043] The diagonal brace structures each include: a reinforcing plate 3. The reinforcing plate 3 is in a right trapezoidal structure, the bottom of the reinforcing plate 3 is a hypotenuse structure, and a sealing plate 2 is connected to the peripheral side edges of the reinforcing plate 3; See Figure 5, a lower carriage pipe beam 20 is connected to the bottom of the carriage 19. Reinforcement plates 3 are connected to the opposite sides of the bottom of the lower carriage pipe beam 20. A sealing plate 2 at the top of the reinforcement plate 3 is welded to the bottom of the lower carriage pipe beam 20. The small ends of the reinforcement plates 3 on the opposite sides face each other. Locking holes are penetrated through the side walls of the reinforcement plates 3 near the large ends, and sleeves 4 are connected to the locking holes.

[0044] The fixed locking devices all include: a mounting plate 12 and a power unit 13. The mounting plate 12 is of a U-shaped structure with the U-shaped opening facing upwards. The bottom of the mounting plate 12 is fixed to the top of the bottom plate 8. A bushing 16 is connected between the two side walls of the mounting plate 12. One side wall of the mounting plate 12 is close to one of the side plates 7. The outer wall of the other side plate of the mounting plate 12 is connected to the end face of the power unit 13 through a transition plate 15. The power unit 13 is a cylinder, and a locking pin 14 is connected to the end of the output shaft of the power unit 13. The output shaft and the locking pin 14 of the power unit 13 pass through the side wall of the mounting plate 12 and are located inside the bushing 16.

[0045] After quickly positioning the carriage and the chassis frame in cooperation, the reinforcement plate 3 is located between the two side plates 7, and the sleeve 4 of the reinforcement plate 3 is just aligned with the holes 19 of the two side plates 7. Start the power unit 13. By extending the output shaft, insert the locking pin 14 into the holes 19 of the two side plates 7 and the sleeve 4 to fix the reinforcement plate 3, realizing the quick locking of the carriage and the chassis frame. When unlocking is required, the output shaft of the power unit 13 contracts, and the locking pin 14 enters the bushing 16 to realize the quick unlocking of the carriage and the chassis frame. The lifting and lowering of the carriage are realized through the hydraulic lifting device, realizing the detachment and placement of the detachable carriage and the chassis.

[0046] Furthermore, secondary limit blocks 11 are connected to the opposite side walls of the two side plates 7. The secondary limit blocks 11 are in the shape of right trapezoids with the small ends facing the direction of the chassis frame 5. The two secondary limit blocks 11 together form a V-shaped structure with the bottom not connected. After quickly positioning the carriage and the chassis frame in cooperation, the bottom of the reinforcement plate 3 is located between the two secondary limit blocks 11, and the reinforcement plate 3 is limited by the two secondary limit blocks 11.

[0047] Furthermore, an unlocking sensor 17 and a locking sensor 18 are connected to the bushing 16. The models of the unlocking sensor 17 and the locking sensor 18 can be GATERON MS-321102B01130M5. When in use, when the locking pin 14 is fully retracted, the unlocking sensor 17 is triggered. When the locking pin 14 is fully extended, the locking sensor 18 is triggered. The unlocking sensor 17 and the locking sensor 18 respectively send unlocking signals and locking signals to the signal feedback device, and the signal feedback device can be a host computer, etc., so that the staff can judge whether the carriage and the chassis frame are in a locked state or an unlocked state.

[0048] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A locking structure for a detachable carriage and a chassis, characterized in that, Including: Diagonal brace structures connected to opposite sides of the bottom of the carriage and support frame devices connected to opposite sides of the chassis frame; Fixed wheels (9) and fixed locking devices are connected to the support frame devices, and the diagonal brace structures are in contact with the fixed wheels (9) for quick cooperation when the carriage and the chassis frame are connected; The fixed locking device is used to fix the diagonal brace structures.

2. The locking structure for a detachable carriage and chassis according to claim 1, characterized in that The support frame devices each include: A support plate (6) connected to the side of the chassis frame; A bottom plate (8) with its side perpendicular to the support plate (6); Two side plates (7) perpendicularly connected to the bottom plate (8), and the fixed wheels (9) are rotatably connected between the two side plates (7); The fixed locking device is connected to the bottom plate (8).

3. The locking structure for a detachable carriage and a chassis according to claim 2, characterized in that, The diagonal brace structures each include: A reinforcing plate (3), the reinforcing plate (3) is in the shape of a right trapezoid, the bottom of the reinforcing plate (3) is a bevel structure, the top of the reinforcing plate (3) is connected to the bottom of the carriage, and the small ends of the reinforcing plates (3) on opposite sides are opposite to each other; The fixed locking device locks the reinforcing plate (3) between the two side plates (7).

4. The locking structure for the detachable carriage and chassis according to claim 3, characterized in that, Sealing plates (2) are connected to the peripheral sides of the reinforcing plate (3).

5. The locking structure for a detachable carriage and chassis according to claim 3, characterized in that, The fixed locking devices each include: A power unit (13) connected to the bottom plate (8); A locking pin (14) connected to the output shaft of the power unit (13); Holes (19) are provided on both of the two side plates (7), a locking hole is provided on the reinforcing plate (3), a sleeve (4) is connected to the locking hole, and the power unit (13) is used to insert the locking pin (14) into the hole (19) and the sleeve (4) to fix the reinforcing plate (3).

6. The locking structure for a detachable carriage and a chassis according to claim 5, characterized in that, The power unit (13) is a cylinder.

7. The locking structure for a detachable carriage and a chassis according to claim 6, characterized in that, The fixed locking device further includes: A mounting plate (12), which is in a U-shaped structure and is connected to the bottom plate (8), and the end face of the power unit (13) is connected to the outer wall of the mounting plate (12) away from the side plate (7) through a transition plate (15); A bushing (16) connected between the two side walls of the mounting plate (12), and the output shaft of the power unit (13) is located inside the bushing (16).

8. The locking structure for a detachable carriage and chassis according to claim 7, characterized in that, An unlocking sensor (17) and a locking sensor (18) are connected to the bushing (16), which are respectively used to identify the telescopic state of the locking pin (14) inside the bushing (16) to judge the unlocking and locking states between the locking pin (14) and the reinforcing plate (3), and feedback unlocking signals and locking signals to the signal feedback device.

9. The locking structure for a detachable carriage and a chassis according to claim 3, wherein, Secondary limiting blocks (11) are connected to the opposite side walls of the two side plates (7).

10. The locking structure for a detachable carriage and chassis according to claim 9, characterized in that, The two secondary limiting blocks (11) are in a V shape.

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