A gear control mechanism for a layered cargo box

Abstract

The present invention discloses a gear control mechanism for a layered cargo box, including a lifting bracket provided with a gear slot; a gear control device including a moving seat and a driving device for driving the moving seat to lift along the lifting bracket, the moving seat is slidably arranged on the lifting bracket, a gear member is hinged on the moving seat, a gear protrusion engaged with the gear slot is arranged on the gear member, a first reset member is arranged between the gear member and the moving seat, a lifting control member is hinged on the gear member, a second reset member is arranged between the lifting control member and the gear member, and the free end of the lifting control member is kept in contact with the outer surface of the lifting bracket. This solution is used for automatically layer the support cross beams of the layered cargo box, flexibly adjust the layer height, automatically lock the gear, and the support structure is stable.

Description

Technical Field

[0001] The present invention relates to the technical field of layered cargo box devices, and in particular to a gear control mechanism for a layered cargo box. Background Art

[0002] A layering device is applied inside a cargo box to form a double-layer or multi-layer space inside the cargo box. The layering device includes support crossbeams arranged in parallel for supporting the cargo support plates. Lifting brackets are vertically arranged on the inner wall of the carriage, and both ends of the support crossbeam are respectively connected to a lifting bracket. Since the heights of the goods are different, generally, the support crossbeam can also move up and down along the crossbeam track through a gear control mechanism and be locked at different height positions, thereby adjusting the height positions of the support crossbeam and the cargo support plates. By relying on the function of the layering device, the internal space of the cargo box is reasonably utilized, and the extrusion between the goods is avoided. In the existing layered cargo boxes, the gear control mechanism between the support crossbeam and the lifting bracket has a complex structure, and additional locking parts are required to perform secondary locking on the gear control mechanism, resulting in more required components and higher equipment costs.

[0003] For example, Chinese Patent Publication No. CN113954974A, with a publication date of January 21, 2022, titled "A Layering Device for a Carriage", includes a support plate and two support crossbeams arranged in parallel and spaced along the front-rear direction of the carriage. Vertical guide rails are provided on the inner wall of the carriage, and a sliding seat that can move up and down along the vertical guide rails is connected to the vertical guide rails. The support plate is connected to the sliding seat through a rotational connection structure, so that the support plate can rotate relative to the sliding seat and can pass through between the two support crossbeams after rotation. When the support plate is in a horizontal state, it can lean on the two support crossbeams.

[0004] The disadvantages of the existing patents are as follows: In the existing layered cargo boxes, the gear control mechanism between the support crossbeam and the lifting bracket has a complex structure, and additional locking parts are required to perform secondary locking on the gear control mechanism, resulting in more required components and higher equipment costs. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems that in the existing layered cargo boxes, the gear control mechanism between the support crossbeam and the lifting bracket has a complex structure, additional locking parts are required to perform secondary locking on the gear control mechanism, resulting in more required components and higher equipment costs. The present invention provides a gear control mechanism for a layered cargo box, which has a simple structure, automatically locks during gear shifting and layering, and has a stable support structure.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A gear control mechanism for a layered cargo box includes:

[0008] Lifting bracket, with a gear slot provided on the lifting bracket;

[0009] Gear control device, the gear control device includes a moving seat and a driving device for driving the moving seat to lift along the lifting bracket. The moving seat is slidably arranged on the lifting bracket. A gear member is hinged on the moving seat. A gear protrusion that is engaged and matched with the gear slot is provided on the gear member. A first reset member is provided between the gear member and the moving seat. A lifting control member is hinged on the gear member. A second reset member is provided between the lifting control member and the gear member. The free end of the lifting control member keeps in contact with the outer surface of the lifting bracket. In this solution, a gear control mechanism for a layered cargo box is used to automatically layer the support cross beam of the layered cargo box, flexibly adjust the layer height, automatically lock the gear, and the support structure is stable. When the gear control device rises along the lifting bracket, the lifting control member unfolds, and the inner side wall of the lifting control member forms an acute angle with the outer surface of the lifting bracket. When the moving seat moves to the corresponding gear, the gear member presses against the lifting bracket under the reset action of the first reset member, and the gear protrusion extends into the gear slot. The gear slot is engaged with the gear protrusion. When the goods are placed above the support cross beam, the lower end surface of the gear protrusion presses against the lower side wall of the gear slot, making the support structure more stable. When it is necessary to lower the gear control device along the lifting bracket, first raise the moving seat by a set stroke so that the gear protrusion moves out of the gear slot and is located outside the outer surface of the lifting bracket. At this time, the lifting control member is in a retracted state under the action of the second reset member, and the outer side surface of the lifting control member forms an acute angle with the outer surface of the lifting bracket. At this time, when the moving seat is driven by the driving device to descend along the lifting bracket, the lifting control member still remains in the retracted state, and the moving seat completes the descent along the lifting bracket.

[0010] Preferably, the gear protrusion is provided with an inclined surface, and the inclined surface faces the upper end of the lifting bracket; the gear protrusion is provided with a vertical surface, and the vertical surface is engaged and matched with the lower side wall of the gear slot. The inclined surface facilitates the movement of the gear protrusion out of the gear slot when rising, preventing the gear protrusion from being stuck with the gear slot when the moving seat rises. The vertical surface is perpendicular to the outer surface of the lifting bracket, making the support structure stable.

[0011] Preferably, the gear protrusion on the gear member is located at one end of the gear member close to the lifting control member. When the lifting control member is in a completely retracted state, there is a gap between the gear protrusion and the outer surface of the lifting bracket.

[0012] Preferably, the lifting control member is provided with an arc surface, and the arc surface faces the upper end of the lifting bracket. The arc surface is beneficial to the unfolding of the lifting control member when the moving seat rises.

[0013] Preferably, a sliding groove is provided on the lifting bracket, a sliding block is provided on one side of the moving seat facing the lifting bracket, and a limiting member embedded in the sliding groove is provided at one end of the sliding block located in the sliding groove. The limiting member is used to limit the moving seat on the lifting bracket to prevent the moving seat from disengaging from the lifting bracket.

[0014] Preferably, an installation groove is provided on the moving seat, the gear member is hinged in the installation groove, a through opening is provided at the lower part of the installation groove, and the gear protrusion passes through the through opening and is clamped with the gear groove; a moving groove is provided on the side wall of the moving seat, the moving groove is located on both sides of the lifting control member, and the moving groove limits the moving range of the lifting control member. Both sides of the lifting control member are located in the moving groove to limit the moving range of the lifting control member.

[0015] Preferably, the driving device includes a driving motor and a synchronous belt driven by the driving motor, and the synchronous belt is connected to the moving seat. The driving motor drives the synchronous belt to rotate, and both ends of the moving seat are respectively connected to both ends of the synchronous belt.

[0016] Preferably, a pressing block is provided on one side of the moving seat facing the lifting bracket, the pressing block is fixed on the moving seat by screws, and the synchronous belt is fixed between the synchronous belt pressing block and the moving seat. The pressing block is used to press one end of the synchronous belt on the moving seat.

[0017] Preferably, a plurality of laterally distributed tooth-shaped protrusions are provided on one side of the pressing block facing the moving seat. The tooth-shaped protrusions increase the friction between the pressing block and the synchronous belt.

[0018] Preferably, a clamping groove is provided at the lower end of the gear member, and a clamping member is provided on one side of the lifting control member facing the lifting bracket. When the lifting control member is in a retracted state, the clamping member and the clamping groove are in clamping cooperation, and the lifting control member is in contact with the outer surface of the lifting bracket. Since the reset strength of the first reset member is greater than the reset strength of the second reset member, the clamping groove and the clamping member are in clamping cooperation to prevent the lifting control member from expanding under the pressure of the moving seat when the moving seat descends, causing the gear protrusion to be clamped into the gear groove under the reset action of the first reset member. Ensure that the lifting control member remains in a retracted state when the moving seat descends.

[0019] Therefore, the present invention has the following beneficial effects: the support cross beam for the layered cargo box is automatically layered, the layer height can be flexibly adjusted, the gear is automatically locked, and the support structure is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention.

[0021] Figure 2 is a schematic structural diagram of Embodiment 1 of the present invention.

[0022] Figure 3 It is a schematic structural diagram of the gear member and the lifting control member in the first embodiment of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the gear member and the lifting control member in the second embodiment of the present invention.

[0024] As shown in the figure:

[0025] Lifting bracket 1, gear slot 1.1, sliding slot 1.2,

[0026] Moving seat 2, slider 2.1, limiting member 2.2, mounting slot 2.3, through opening 2.4, moving slot 2.5,

[0027] Gear member 3, card slot 3.1,

[0028] Gear protrusion 4, inclined surface 4.1, vertical surface 4.2,

[0029] First reset member 5,

[0030] Lifting control member 6, arc surface 6.1, clamping member 6.2,

[0031] Second reset member 7, pressing block 8. Specific implementation manner

[0032] To make the objectives, technical solutions and advantages of the technical solution embodiments of the present invention clearer, the present invention will be further described below in conjunction with the accompanying drawings and specific implementation manners.

[0033] Embodiment 1, as Figure 1 , Figure 2 , Figure 3 shown, a gear control mechanism for a stratified cargo box includes: a lifting bracket 1, on which a gear slot 1.1 is provided; a gear control device, the gear control device includes a moving seat 2 and a driving device for driving the moving seat 2 to lift along the lifting bracket 1, the moving seat 2 is slidably arranged on the lifting bracket 1, a gear member 3 is hinged on the moving seat 2, a gear protrusion 4 that is in clamping cooperation with the gear slot 1.1 is provided on the gear member 3, a first reset member 5 is arranged between the gear member 3 and the moving seat 2, a lifting control member 6 is hinged on the gear member 3, a second reset member 7 is arranged between the lifting control member 6 and the gear member 3, and the free end of the lifting control member 6 is kept in contact with the outer surface of the lifting bracket 1.

[0034] As Figure 1 , Figure 2 , Figure 3As shown, a sliding groove 1.2 is provided on the lifting bracket 1. A sliding block 2.1 is provided on the side of the moving seat 2 facing the lifting bracket 1. A limiting member 2.2 embedded in the sliding groove 1.2 is provided at one end of the sliding block 2.1 located in the sliding groove 1.2. The limiting member 2.2 is used to limit the moving seat 2 on the lifting bracket 1 and prevent the moving seat 2 from disengaging from the lifting bracket 1.

[0035] As Figure 2 , Figure 3 shown, a slope 4.1 is provided on the gear projection 4, and the slope 4.1 faces the upper end of the lifting bracket 1; a vertical surface 4.2 is provided on the gear projection 4, and the vertical surface 4.2 is in clamping fit with the lower side wall of the gear groove 1.1. The slope 4.1 facilitates the gear projection 4 to move out of the gear groove 1.1 when rising, and prevents the gear projection 4 from jamming with the gear groove 1.1 when the moving seat 2 rises. The vertical surface 4.2 is perpendicular to the outer surface of the lifting bracket 1, making the support structure stable. The gear projection 4 on the gear member 3 is located at one end of the gear member 3 close to the lifting and lowering control member 6. When the lifting and lowering control member 6 is in a fully retracted state, there is a gap between the gear projection 4 and the outer surface of the lifting bracket 1. An arc surface 6.1 is provided on the lifting and lowering control member 6, and the arc surface 6.1 faces the upper end of the lifting bracket 1. The arc surface 6.1 is beneficial to the deployment of the lifting and lowering control member 6 when the moving seat 2 rises.

[0036] As Figure 1 shown, an installation groove 2.3 is provided on the moving seat 2, the gear member 3 is hinged in the installation groove 2.3, a through port 2.4 is provided at the lower part of the installation groove 2.3, and the gear projection 4 passes through the through port 2.4 and is in clamping connection with the gear groove 1.1; a moving groove 2.5 is provided on the side wall of the moving seat 2, the moving groove 2.5 is located on both sides of the lifting and lowering control member 6, and the moving groove 2.5 limits the moving range of the lifting and lowering control member 6. Both sides of the lifting and lowering control member 6 are located in the moving groove 2.5, restricting the moving range of the lifting and lowering control member 6.

[0037] A gear control mechanism for a layered cargo box in this solution is used to automatically layer the support cross beams of the layered cargo box, flexibly adjust the layer height, automatically lock the gear, and have a stable support structure. When the gear control device ascends along the lifting bracket 1, the lifting control member 6 unfolds, and the inner side wall of the lifting control member 6 forms an acute angle with the outer surface of the lifting bracket 1. When the moving seat 2 moves to the corresponding gear, the gear member 3 presses against the lifting bracket 1 under the reset action of the first reset member 5, and the gear protrusion 4 extends into the gear slot 1.1, and the gear slot 1.1 is engaged with the gear protrusion 4. When the goods are placed above the support cross beam, the lower end surface of the gear protrusion 4 presses against the lower side wall of the gear slot 1.1, making the support structure more stable. When it is necessary to lower the gear control device along the lifting bracket 1, first raise the moving seat 2 by a set stroke, so that the gear protrusion 4 moves out of the gear slot 1.1 to the outside of the outer surface of the lifting bracket 1. At this time, the lifting control member 6 is in a retracted state under the action of the second reset member 7, and the outer side surface of the lifting control member 6 forms an acute angle with the outer surface of the lifting bracket 1. At this time, when the moving seat 2 descends along the lifting bracket 1 under the drive of the drive device, the lifting control member 6 still remains in the retracted state, and the moving seat 2 completes the descent along the lifting bracket 1.

[0038] Further, the drive device includes a drive motor and a synchronous belt driven by the drive motor. The synchronous belt is connected to the moving seat 2. The drive motor drives the synchronous belt to rotate, and both ends of the moving seat 2 are respectively connected to both ends of the synchronous belt. A pressing block 8 is provided on one side of the moving seat 2 facing the lifting bracket 1. The pressing block 8 is fixed to the moving seat 2 by screws, and the synchronous belt is fixed between the synchronous belt pressing block 8 and the moving seat 2. The pressing block 8 is used to press one end of the synchronous belt against the moving seat 2. A number of laterally distributed tooth-shaped protrusions are provided on the side of the pressing block 8 facing the moving seat 2. The tooth-shaped protrusions increase the friction between the pressing block 8 and the synchronous belt.

[0039] In Embodiment 2, the gear control device is further optimized. As Figure 3 shown, a card slot 3.1 is provided at the lower end of the gear member 3, and a clamping member 6.2 is provided on one side of the lifting control member 6 facing the lifting bracket 1. When the lifting control member 6 is in a retracted state, the clamping member 6.2 and the card slot 3.1 are in clamping cooperation, and the lifting control member 6 is in contact with the outer surface of the lifting bracket 1. Since the reset strength of the first reset member 5 is greater than the reset strength of the second reset member 7, the card slot 3.1 and the clamping member 6.2 are in clamping cooperation to prevent the lifting control member 6 from unfolding under the pressure of the moving seat 2 when the moving seat 2 descends, causing the gear protrusion 4 to be caught in the gear slot 1.1 under the reset action of the first reset member 5. Ensure that the lifting control member 6 remains in a retracted state when the moving seat 2 descends.

[0040] Therefore, the present invention has the following beneficial effects: The support cross beams for the layered cargo box are automatically layered, the layer height can be flexibly adjusted, the gear can be automatically locked, and the support structure is stable.

[0041] The specific embodiments described above are only preferred embodiments of the present invention, and do not limit the specific implementation scope of the present invention. Any equivalent changes made according to the shape and structure of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear control mechanism for a layered cargo box, characterized in that, Comprising: A lifting bracket (1), on which a gear slot (1.1) is provided; A gear control device, which includes a moving seat (2) and a driving device for driving the moving seat to lift along the lifting bracket. The moving seat is slidably arranged on the lifting bracket. A gear member (3) is hinged on the moving seat. A gear projection (4) that is engaged and matched with the gear slot is provided on the gear member. A first reset member (5) is provided between the gear member and the moving seat. A lifting control member (6) is hinged on the gear member. A second reset member (7) is provided between the lifting control member and the gear member. The free end of the lifting control member keeps pressing against the outer surface of the lifting bracket; A card slot (3.1) is provided at the lower end of the gear member. A clamping member (6.2) is provided on the side of the lifting control member facing the lifting bracket. When the lifting control member is in a retracted state, the clamping member and the card slot are engaged and matched, and the lifting control member presses against the outer surface of the lifting bracket.

2. The gear control mechanism for a layered cargo box according to claim 1, wherein, An inclined surface (4.1) is provided on the gear projection, and the inclined surface faces the upper end of the lifting bracket; a vertical surface (4.2) is provided on the gear projection, and the vertical surface is engaged and matched with the lower side wall of the gear slot.

3. The gear control mechanism for a layered cargo box according to claim 2, characterized in that, The gear projection on the gear member is located at one end of the gear member close to the lifting control member.

4. The gear control mechanism for a layered cargo box according to claim 3, characterized in that, An arc surface (6.1) is provided on the lifting control member, and the arc surface faces the upper end of the lifting bracket.

5. A gear control mechanism for a layered cargo box according to claim 1 or 2 or 3 or 4, characterized in that, A sliding groove (1.2) is provided on the lifting bracket. A sliding block (2.1) is provided on the side of the moving seat facing the lifting bracket. A limiting member (2.2) embedded in the sliding groove is provided at one end of the sliding block located in the sliding groove.

6. The gear control mechanism for a layered cargo box according to claim 2, characterized in that, An installation groove (2.3) is provided on the moving seat. The gear member is hinged in the installation groove. A through opening (2.4) is provided at the lower part of the installation groove. The gear projection passes through the through opening and is engaged with the gear slot; a moving groove (2.5) is provided on the side wall of the moving seat, and the moving groove is located on both sides of the lifting control member, and the moving groove limits the moving range of the lifting control member.

7. A gear control mechanism for a layered cargo box according to claim 1 or 2 or 3 or 4 or 6, characterized in that, The driving device includes a driving motor and a synchronous belt driven by the driving motor, and the synchronous belt is connected to the moving seat.

8. The gear control mechanism for a layered cargo box according to claim 7, characterized in that, A pressing block (8) is provided on the side of the moving seat facing the lifting bracket. The pressing block is fixed on the moving seat by screws, and the synchronous belt is fixed between the synchronous belt pressing block and the moving seat.

9. The gear control mechanism for a layered cargo box according to claim 8, characterized in that, A number of laterally distributed tooth-shaped protrusions are provided on the side of the pressing block facing the moving seat.

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