Lock catch device of logistics turnover box

Abstract

The utility model discloses a locking device of a logistics transfer box, which relates to the technical field of logistics transfer equipment and comprises a logistics transfer box, a transfer box upper cover is rotatably connected to the upper part of the logistics transfer box, and a clamping groove block is fixedly connected to the side surface of the transfer box upper cover. And a quick locking mechanism is fixedly connected to the position, close to the clamping groove block, of the side face of the logistics transfer box. A double-locking structure is designed, through the synergistic effect of the clamping ejector block, the trapezoidal ejector block and other structures, when the transfer box is closed, the clamping ejector block is locked under the elastic force of the spring, the trapezoidal ejector block can further stop the sliding deflector rod connected with the clamping ejector block from moving, and accidental opening is prevented; the manual screwing nut needs to be rotated firstly and then the sliding shifting rod is shifted, misoperation can be effectively avoided, the safety of articles in the transportation and storage process is greatly improved, and the loss risk caused by accidental opening is reduced.

Description

Technical Field

[0001] This utility model relates to the field of logistics turnover equipment technology, and in particular to a locking device for a logistics turnover box. Background Technology

[0002] Logistics turnover boxes, also known as logistics boxes, are containers used in logistics transportation and warehousing. They are usually made of plastic, metal or wood and are characterized by being sturdy and durable, moisture-proof and waterproof, and easy to clean. They come in various sizes and can be selected according to needs. They can effectively protect goods, improve logistics efficiency, and realize the standardized and unitized transportation and storage of goods.

[0003] A search revealed that some existing logistics turnover boxes use only a single buckle structure for locking. This structure, relying solely on a single buckle during transportation and handling, is simple and lacks sufficient stability and reliability. When the turnover box is subjected to vibration, collision, or other external interference, the single buckle is prone to failure, failing to guarantee a secure lock and easily opening accidentally. This can lead to damage or loss of the contents, posing significant safety hazards and economic losses to logistics transportation. Therefore, a locking device for logistics turnover boxes is provided to solve these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a locking device for a logistics turnover box, which has a double locking design for the turnover box, greatly enhancing the security of the logistics turnover box and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a locking device for a logistics turnover box, comprising: a logistics transfer box, a transfer box cover rotatably connected to the top of the logistics transfer box, a locking slot block fixedly connected to the side of the transfer box cover, and a quick locking mechanism fixedly connected to the side of the logistics transfer box near the locking slot block.

[0006] The quick-locking mechanism includes a lower fixed box, a top block groove on the upper part of the lower fixed box, a lever groove extending through to the outer side of the lower fixed box on the inner side of the top block groove, a first support spring fixedly connected to the inner side of the top block groove, a locking top block fixedly connected to the other end of the first support spring, a sliding lever fixedly connected to the side of the locking top block near the lever groove, a side fixing block fixedly connected to the side of the lower fixed box, a hand-tightening nut rotatably connected to the side of the side fixing block, a long screw threadedly connected to the inner side of the hand-tightening nut, a trapezoidal top block fixedly connected to the side of the long screw through the side fixing block, a second support spring sleeved on the outer side of the long screw, two sets of limiting sliders fixedly connected to the side of the locking top block, and two sets of limiting grooves adapted to the limiting sliders on the inner side of the top block groove.

[0007] As a further improvement of this utility model: two sets of opening handles are fixedly connected to the side of the logistics transfer box, and four sets of fastening strips are fixedly connected to the bottom of the top cover of the transfer box.

[0008] As a further improvement of this utility model, the quick locking mechanism is fixedly connected to the logistics transfer box through the lower fixed box body.

[0009] As a further improvement of this utility model, a locking groove adapted to the top block is provided on the inner side of the locking slot block.

[0010] As a further embodiment of this utility model: the sliding lever slides inside the lever groove, and when the first support spring naturally extends without being subjected to external force, the locking top block extends out of the top block groove into the locking groove inside the locking groove block, at which time the sliding lever is in close contact with the upper top wall of the lever groove.

[0011] As a further embodiment of this utility model: the two ends of the second support spring are respectively fixedly connected to the side fixing block and the trapezoidal top block.

[0012] As a further improvement of this utility model: a through hole is provided on the inner side of the side fixing block, and the long screw is slidably connected to the side fixing block through the through hole.

[0013] As a further improvement of this utility model: when the second support spring naturally extends without being subjected to external force, the trapezoidal top block is located below the sliding lever to prevent it from sliding downward.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model features a dual locking structure. Through the coordinated action of the locking top block and the trapezoidal top block, when the transfer box is closed, the locking top block is locked by the spring force, while the trapezoidal top block further blocks the movement of the sliding lever connected to the locking top block, preventing accidental opening. When it is necessary to open the transfer box, the hand-tightening nut must be turned first before the sliding lever is moved, which can effectively avoid misoperation, greatly enhance the safety of the items during transportation and storage, and reduce the risk of loss caused by accidental opening.

[0016] 2. The hand-tightening nut in this utility model is simple to operate and requires no additional tools. Manual rotation can drive the trapezoidal top block to move and adjust the locking state of the sliding lever through the long screw. The sliding lever is easy to move, the opening handle is easy to grip, and the top cover is opened using the lever principle. The rotation connection of the top cover of the transport box makes the opening and closing smooth, which is convenient for the use and placement of items and is highly efficient. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the fastening strip of this utility model;

[0019] Figure 3 This is a schematic diagram of the quick-locking mechanism in this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting slider in this utility model;

[0021] Figure 5 This is a schematic diagram of the limiting slide groove in this utility model.

[0022] In the diagram: 1. Logistics transfer box; 2. Transfer box top cover; 3. Locking slot block; 4. Quick locking mechanism; 5. Box opening handle; 6. Fastening strip; 41. Lower fixed box body; 42. Top block slot; 43. Lever slot; 44. First support spring; 45. Locking top block; 46. Sliding lever; 47. Side fixing block; 48. Hand-tightening nut; 49. Long screw; 410. Trapezoidal top block; 411. Second support spring; 412. Limiting slider; 413. Limiting groove. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0025] Reference Figures 1 to 5 In this embodiment of the utility model, a locking device for a logistics turnover box includes: a logistics transfer box 1, a transfer box cover 2 rotatably connected to the top of the logistics transfer box 1, a locking slot block 3 fixedly connected to the side of the transfer box cover 2, and a quick locking mechanism 4 fixedly connected to the side of the logistics transfer box 1 near the locking slot block 3.

[0026] The quick-locking mechanism 4 includes a lower fixed housing 41. A top block groove 42 is formed on the upper part of the lower fixed housing 41. A lever groove 43 extending through to the outer side of the lower fixed housing 41 is formed inside the top block groove 42. A first support spring 44 is fixedly connected to the inner side of the top block groove 42. A locking top block 45 is fixedly connected to the other end of the first support spring 44. The first support spring 44 provides the power to extend the locking top block 45. A sliding lever 46 is fixedly connected to the side of the locking top block 45 near the lever groove 43. A side fixing block 47 is fixedly connected to the side of the lower fixed housing 41. A hand-tightening nut 48 is rotatably connected to the side of the side fixing block 47. The inner side of the hand-tightening nut 48... A long screw 49 is threadedly connected to the long screw 49. A trapezoidal top block 410 is fixedly connected to the long screw 49 through the side fixing block 47. A second support spring 411 is sleeved on the outside of the long screw 49. The long screw 49 is threadedly connected to the hand-tightening nut 48, which can convert the rotational motion of the hand-tightening nut 48 into the linear motion of the long screw 49, thereby limiting the movement direction of the long screw 49. Two sets of limiting sliders 412 are fixedly connected to the side of the locking top block 45. Two sets of limiting grooves 413 adapted to the limiting sliders 412 are opened on the inner side of the top block groove 42. The limiting sliders 412 and the limiting grooves 413 ensure that the locking top block 45 slides smoothly and does not deviate.

[0027] Two sets of opening handles 5 are fixedly connected to the side of the logistics transfer box 1, facilitating its rotation and opening. Four sets of fastening rubber strips 6 are fixedly connected to the bottom of the top cover 2. The fastening rubber strips 6 can tightly abut against the logistics transfer box 1 when the top cover 2 is closed, preventing the top cover 2 from shaking. The opening handles 5 allow users to easily grip and apply force to open the top cover, using the lever principle to rotate the top cover. The fastening rubber strips 6, through their own elasticity, tightly adhere to the logistics transfer box 1, cushioning and reducing the shaking of the top cover, ensuring the safety of the internal items during transportation.

[0028] The quick locking mechanism 4 is fixedly connected to the logistics transfer box 1 through the lower fixed box 41. The inner side of the locking slot block 3 is provided with a locking groove that matches the locking top block 45. The sliding lever 46 slides inside the lever groove 43. When the first support spring 44 is not subjected to external force and naturally extends, the locking top block 45 extends out of the top block groove 42 into the locking groove inside the locking slot block 3. At this time, the sliding lever 46 is in close contact with the upper top wall of the lever groove 43 to ensure the stability of the locking state. The two ends of the second support spring 411 are fixedly connected to the side fixed block 47 and the trapezoidal top block 410 respectively. The second support spring 411 maintains the position of the trapezoidal top block 410 under normal conditions to ensure the normal blocking function of the sliding lever 46 and ensure the safety of the locking device.

[0029] A through hole is provided on the inner side of the side fixing block 47. The long screw 49 is slidably connected to the side fixing block 47 through the through hole. The through hole of the side fixing block 47 provides precise guidance for the linear movement of the long screw 49, so that the long screw 49 can accurately drive the trapezoidal top block 410 to complete the blocking or releasing operation of the sliding lever 46 during operation. When the second support spring 411 is not subjected to external force and naturally extends, the trapezoidal top block 410 is located below the sliding lever 46 to prevent it from sliding down and causing the turnover box to open accidentally. The natural extension state of the second support spring 411 ensures the position of the trapezoidal top block 410, keeps the turnover box locked, and avoids accidental unlocking due to external force acting on the sliding lever 46, thus ensuring the safe locking of the turnover box.

[0030] The working principle of this utility model is as follows: When it is necessary to close the logistics transfer box 1, the transfer box cover 2 is rotated downward to the closed position with the logistics transfer box 1. During the closing process, the locking slot 3 on the side of the transfer box cover 2 will approach the quick locking mechanism 4 on the side of the logistics transfer box 1. The four sets of fastening rubber strips 6 under the transfer box cover 2 will contact the surface of the logistics transfer box 1. Due to the elasticity of the fastening rubber strips 6 themselves, they will fit tightly against the logistics transfer box 1, playing a role in buffering and preventing the transfer box cover 2 from shaking, thus ensuring the safety of the internal items during transportation.

[0031] When the top cover 2 of the transfer box is fully closed, the locking top block 45 in the top block groove 42 inside the lower fixed box 41 is pushed outward by the elastic force provided by the first support spring 44 under the action of the first support spring 44. The limiting slider 412 on the side of the locking top block 45 slides along the limiting slide groove 413 inside the top block groove 42 to ensure that the locking top block 45 slides smoothly and does not deviate. At this time, part of the locking top block 45 will extend out of the top block groove 42 and enter the locking groove inside the locking groove block 3. The sliding lever 46 is in close contact with the upper top wall of the lever groove 43 to ensure that the locking top block 45 is stably in the locked position and achieves initial locking.

[0032] At the same time, the trapezoidal top block 410 is located below the sliding lever 46, preventing the sliding lever 46 from sliding down, further strengthening the locking of the transfer box cover 2, and preventing the transfer box from being opened accidentally. The trapezoidal top block 410 is connected to the hand-tightening nut 48 rotatably connected to the side fixing block 47 via the long screw 49. The side fixing block 47 through which the long screw 49 passes provides it with limit and support, ensuring that the trapezoidal top block 410 is in the correct position.

[0033] When it is necessary to open the logistics transfer box 1, first operate the hand-tightening nut 48 on the side of the side fixing block 47. The hand-tightening nut 48 is threadedly connected to the inside of the long screw 49. When the hand-tightening nut 48 is rotated, since the long screw 49 is slidably connected to the side fixing block 47 through the through hole on the inside of the side fixing block 47, the rotational motion of the hand-tightening nut 48 will be converted into the linear motion of the long screw 49. The long screw 49 will drive the trapezoidal top block 410 to move towards the side fixing block 47. At this time, the second support spring 411 is compressed. As the trapezoidal top block 410 moves, it gradually moves away from below the sliding lever 46, releasing the obstruction to the sliding lever 46.

[0034] After the trapezoidal top block 410 releases its obstruction of the sliding lever 46, the user can manually push the sliding lever 46 downward. The sliding lever 46 slides downward inside the lever groove 43, overcoming the elastic force of the first support spring 44, and driving the locking top block 45 to move into the top block groove 42, so that the locking top block 45 disengages from the locking groove of the locking groove block 3.

[0035] When the locking block 45 disengages from the locking slot, the top cover 2 of the transfer box is no longer locked. At this time, the user can grab the opening handle 5 on the side of the logistics transfer box 1 and use the lever principle to apply a suitable rotational force to rotate the top cover 2 of the transfer box upwards to open it, making it convenient to take out or place items.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A latching device for a logistics tote, comprising: Include: The logistics transfer box (1), the transfer box upper cover (2) is rotatably connected above the logistics transfer box (1), the locking groove block (3) is fixedly connected on the side of the transfer box upper cover (2), the quick locking mechanism (4) is fixedly connected on the side of the logistics transfer box (1) close to the locking groove block (3);The quick locking mechanism (4) includes the lower fixed box body (41), the top block groove (42) is formed on the upper side of the lower fixed box body (41), the inside of the top block groove (42) is provided with the pull rod groove (43) that is penetrated to the outside of the lower fixed box body (41), the first support spring (44) is fixedly connected in the inside of the top block groove (42), the other end of the first support spring (44) is fixedly connected with the locking top block (45), the side of the locking top block (45) close to the pull rod groove (43) is fixedly connected with the sliding pull rod (46), the side fixed block (47) is fixedly connected on the side of the lower fixed box body (41), the hand screw nut (48) is rotatably connected on the side of the side fixed block (47), the long screw rod (49) is threadedly connected in the inside of the hand screw nut (48), the long screw rod (49) is fixedly connected with the trapezoidal top block (410) on the side of the side fixed block (47), the second support spring (411) is sleeved on the outside of the long screw rod (49), the locking top block (45) is fixedly connected with two sets of limit sliding blocks (412) on the side, the top block groove (42) is provided with two sets of limit sliding grooves (413) that are matched with the limit sliding block (412) in the inside.

2. The catch device of a logistics turnover box according to claim 1, characterized in that, The side of the logistics transfer box (1) is fixedly connected with two sets of box-opening handles (5), the transfer box upper cover (2) is fixedly connected with four sets of fastening adhesive strips (6) below.

3. The catch device of a logistic turnover box according to claim 1, characterized in that, The quick locking mechanism (4) is fixedly connected with the logistics transfer box (1) through the lower fixed box body (41).

4. The catch device of a logistic turnover box according to claim 1, characterized in that, The inside of the locking groove block (3) is provided with the locking groove that is matched with the locking top block (45).

5. A catch device for a logistics pallet according to claim 4, characterized in that The sliding pull rod (46) is slid in the pull rod groove (43), and when the first support spring (44) is not subjected to external force and is naturally elongated, the locking top block (45) is partially extended in the top block groove (42) to the locking groove in the inside of the locking groove block (3), at this time, the sliding pull rod (46) is tightly attached to the upper top wall of the pull rod groove (43).

6. The catch device of a logistic turnover box according to claim 1, characterized in that, The two ends of the second support spring (411) are fixedly connected with the side fixed block (47) and the trapezoidal top block (410) respectively.

7. The catch device of a logistic turnover box according to claim 1, characterized in that, The inside of the side fixed block (47) is provided with a through hole, and the long screw rod (49) is slidably connected with the side fixed block (47) through the through hole.

8. The catch device of a logistic turnover box according to claim 1, characterized in that, When the second support spring (411) is not subjected to external force and is naturally elongated, the trapezoidal top block (410) is located below the sliding pull rod (46) to prevent it from sliding downward.

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