A hierarchically expandable anti-static tray

Abstract

The utility model relates to tray technical field discloses a layered expansion's anti -static tray, including the shell, the shell inner wall bottom fixedly connected with the shock -proof layer, the shell inner wall slidingly connected with the tray main part, the right side surface rotationally connected with the pawl of shell, the pawl surface fixedly connected with the limiting post, the limiting post surface is pasted with the spring piece, the pawl right side fixedly connected with the compression spring, the shell right side fixedly connected with the ratchet bar, the ratchet bar top fixedly connected with the homing tooth, the pawl and ratchet bar and homing tooth all engage the connection between, the shell front side is provided with the second baffle, the second baffle front side surface is provided with the switch mechanism. In the utility model, setting up the ratchet bar and pawl in the both sides of tray main part, forcing the pawl to be towards the ratchet bar through the compression spring, realizing the adjustment of tray height through the tray main part to go up, thereby adapting the electronic component stacking demand of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of pallet technology, and in particular to a layered and expandable antistatic pallet. Background Technology

[0002] A layered, expandable antistatic tray is a specialized carrier made of antistatic materials. It is mainly used for storing and transporting precision components such as electrostatic-sensitive electronic components and integrated circuits. Its core function is to quickly conduct away or neutralize accumulated static charges through the conductivity or dissipation properties of the material itself, so as to avoid damage to components such as breakdown and performance degradation caused by electrostatic discharge, and to provide a safe storage and transportation environment for electronic components.

[0003] The existing layered expandable anti-static trays mostly adopt a fixed single-layer structure. The tray height and partition layout cannot be adjusted. When placing components with large height differences, there may be insufficient space leading to stacking and compression, or redundant height causing wasted space. It is difficult to adapt to the stacking requirements of electronic components of different specifications. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a layered and expandable anti-static tray, which aims to improve the problem of insufficient storage space flexibility caused by the fixed specifications of existing trays.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a layered expandable antistatic tray, comprising an outer shell, a shock-absorbing layer fixedly connected to the bottom of the inner wall of the outer shell, a tray body slidably connected to the inner wall of the outer shell, a pawl rotatably connected to the right side surface of the outer shell, a limiting post fixedly connected to the surface of the pawl, a spring sheet attached to the surface of the limiting post, a compression spring fixedly connected to the right side of the pawl, a ratchet rack fixedly connected to the right side of the outer shell, a return tooth fixedly connected to the top of the ratchet rack, the pawl engaging with both the ratchet rack and the return tooth, and a second baffle provided on the front side of the outer shell, with a switching mechanism provided on the front surface of the second baffle.

[0006] Preferably, the switching mechanism includes a connecting shaft, which is rotatably connected to the inner wall of the second baffle. A limit handle is fixedly connected to the front side of the connecting shaft, and a positioning block is attached to the bottom surface of the limit handle. A positioning groove is provided on the front surface of the outer shell.

[0007] Preferably, the surface of the connecting shaft is in contact with the inner wall of the positioning groove, the top surface of the positioning block is fixedly connected to the front surface of the outer shell, and a return stop is provided on the bottom right side of the outer shell.

[0008] Preferably, the inner wall of the front side of the outer shell is provided with a connecting groove, and the inner wall of the connecting groove is slidably connected to the surface of the second baffle.

[0009] Preferably, a first baffle is slidably connected to the inner wall of the pallet body, and the bottom surface of the first baffle is fixedly connected to the inner wall of the outer shell.

[0010] Preferably, a fixing block one is fixedly connected to the right end of the compression spring, and a fixing block two is fixedly connected to the right end of the spring sheet. Both fixing blocks one and fixing blocks two are fixedly connected to the right side surface of the tray body.

[0011] Preferably, the outer shell has grooves on both the left and right sides, and the tray body is slidably connected to the inner wall of the groove.

[0012] Preferably, a secondary tray is slidably connected to the inner wall of the chute, and the bottom surface of the secondary tray is in contact with the top surface of the tray body.

[0013] This utility model has the following beneficial effects:

[0014] In this invention, ratchet racks and pawls are provided on both sides of the tray body. By compressing springs, the pawls are forced to face the ratchet racks, so that the pawls tend to fit against the ratchet racks. The height of the tray can be adjusted by moving the tray body upwards, thereby adapting to the stacking requirements of electronic components of different specifications and solving the limitation of fixed tray specifications.

[0015] In this invention, the connecting shaft is moved up into the positioning groove, and the connecting shaft is rotated to make the limiting handle fit with the positioning block. At this time, the shockproof layer is removed and the tray body is moved to the bottom of the outer shell. The tray is then slid into the sub-tray from the top of the outer shell through the slide groove, so that the tray can hold more electronic components. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a layered and expandable antistatic tray proposed in this utility model.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 This is a schematic diagram showing the closing of the second baffle of a layered expandable antistatic tray proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the sub-tray connection of a layered expandable antistatic tray proposed in this utility model.

[0020] Legend:

[0021] 1. Outer shell; 2. Shockproof layer; 3. Pallet body; 4. First baffle; 5. Ratchet; 6. Pad; 7. Return stop; 8. Fixing block one; 9. Compression spring; 10. Spring plate; 11. Limiting post; 12. Returning tooth; 13. Slide groove; 14. Fixing block two; 15. Second baffle; 16. Positioning block; 17. Positioning groove; 18. Connecting shaft; 19. Limiting handle; 20. Secondary pallet. Detailed Implementation

[0022] 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.

[0023] Reference Figures 1-2 An embodiment of this utility model provides: a layered expandable antistatic tray, including a shell 1, a shock-absorbing layer 2 fixedly connected to the bottom of the inner wall of the shell 1, a tray body 3 slidably connected to the inner wall of the shell 1, a pawl 6 rotatably connected to the right side surface of the shell 1, a limiting post 11 fixedly connected to the surface of the pawl 6, a spring sheet 10 attached to the surface of the limiting post 11, a compression spring 9 fixedly connected to the right side of the pawl 6, a ratchet rack 5 fixedly connected to the right side of the shell 1, a return tooth 12 fixedly connected to the top of the ratchet rack 5, the pawl 6 being engaged with both the ratchet rack 5 and the return tooth 12, a second baffle 15 provided on the front side of the shell 1, and a switching mechanism provided on the front surface of the second baffle 15;

[0024] The shockproof layer 2 is made of highly elastic insulating material. In addition to providing basic support, it can also absorb the impact force during transportation through elastic deformation, preventing electronic components from accumulating static electricity or physical damage due to vibration. The tray body 3, which is slidably connected to the inner wall of the outer shell 1, can move vertically. Both sides of the tray body 3 are equipped with pawls 6. Under the elastic force of the compression spring 9, the pawls 6 always maintain a tendency to engage with the rack 5. This structural design allows the tray body 3 to achieve height positioning by engaging the pawls 6 with the rack when moving up and down, providing adjustable storage space for electronic components of different sizes and solving the limitations of fixed tray specifications.

[0025] Reference Figure 3 The switching mechanism includes a connecting shaft 18, which is rotatably connected to the inner wall of the second baffle 15. A limit handle 19 is fixedly connected to the front side of the connecting shaft 18. A positioning block 16 is attached to the bottom surface of the limit handle 19. A positioning groove 17 is provided on the front surface of the outer shell 1.

[0026] Since the connecting shaft 18 is rotatably connected to the inner wall of the second baffle 15, by moving the upper limit handle 19 to make it engage with the positioning groove 17, and then rotating the limit handle 19 to fit with the positioning block 16, the open state of the second baffle 15 can be locked. This not only makes it easy for operators to take out the shockproof layer 2 or adjust the position of the tray body 3, but also allows it to slide into the auxiliary tray 20 with the slide groove 13 when it is necessary to store low-profile electronic components, thereby improving space utilization through the double-layer tray structure.

[0027] Reference Figure 3 The surface of the connecting shaft 18 is in contact with the inner wall of the positioning groove 17. The top surface of the positioning block 16 is fixedly connected to the front surface of the outer shell 1. A return stop 7 is provided on the bottom right side of the outer shell 1. The return stop 7 has an L-shaped protrusion structure. When the tray body 3 moves downward, the spring plate 10 moves down synchronously with the pawl 6 until it contacts the top surface of the return stop 7. At this time, the mechanical thrust of the return stop 7 pushes the spring plate 10 upward, forcing the limit post 11 to disengage from the bottom surface of the spring plate 10, so that the pawl 6 re-engages with the ratchet rack 5, achieving the return effect.

[0028] Reference Figure 1 A connecting groove is provided on the inner wall of the front side of the outer shell 1. The inner wall of the connecting groove is slidably connected to the surface of the second baffle 15. The depth of the connecting groove is precisely matched with the thickness of the second baffle 15 to ensure that the two form a continuous anti-static shielding layer when they are in contact, preventing external static electricity from entering the tray through the seam. When the second baffle 15 slides upward along the connecting groove to the position of the positioning groove 17, the metal surface of the connecting shaft 18 forms an electrical contact with the conductive coating on the inner wall of the positioning groove 17, so that the second baffle 15 can still be grounded through the outer shell 1 when it is open, further enhancing the anti-static performance of the overall structure.

[0029] Reference Figure 1 The inner wall of the tray body 3 is slidably connected to a first baffle 4. The bottom surface of the first baffle 4 is fixedly connected to the inner wall of the outer shell 1. The first baffle 4 is provided on both the left and right sides of the outer shell 1. The first baffle 4 can assist in guiding the tray body 3, so that the tray body 3 maintains a vertical posture when moving up and down, and provides stable lateral support for electronic components.

[0030] Reference Figure 2A fixing block 8 is fixedly connected to the right end of the compression spring 9, and a fixing block 14 is fixedly connected to the right end of the spring plate 10. Both fixing blocks 8 and 14 are fixedly connected to the right side surface of the tray body 3. The engagement of the limiting post 11 and the spring plate 10 constitutes an automatic return trigger mechanism. When the tray body 3 moves upward until the pawl 6 contacts the return tooth 12, the limiting post 11 slides along the left inclined surface of the spring plate 10 and presses down on the spring plate 10, causing the pawl 6 to briefly disengage from the ratchet rack 5. At this time, the tray body 3 can move downward. When the limiting post 11 moves to the position of the return stop 7, the inclined surface of the stop pushes the limiting post 11 out of the bottom of the spring plate 10, and the pawl 6 re-engages with the ratchet rack 5 under the action of the compression spring 9, completing the return action. This design achieves automatic return without additional power through mechanical linkage, which simplifies the operation process and improves the convenience of equipment use.

[0031] Reference Figure 4 The outer shell 1 has sliding grooves 13 on both the left and right sides. The pallet body 3 is slidably connected to the inner wall of the sliding groove 13. The left and right sliding grooves 13 respectively serve as vertical support and lateral limiting functions. The sliding groove 13 adopts a T-shaped groove structure. The groove width matches the flanges on both sides of the pallet body 3 to ensure smooth sliding of the pallet body 3 in the vertical direction. At the same time, it forms an electrostatic discharge path through the metal contact surface. The inner wall of the sliding groove 13 is anodized and can form a continuous electrostatic shield with the conductive coating of the pallet body 3 to prevent the accumulation of static electricity caused by sliding friction.

[0032] Reference Figure 4 The inner wall of the chute 13 is slidably connected to the auxiliary tray 20. The bottom surface of the auxiliary tray 20 is in contact with the top surface of the tray body 3. Both the tray body 3 and the auxiliary tray 20 are made of polypropylene, which can meet the requirements of static discharge and has good impact resistance and toughness. Both surfaces are treated with nano-level conductive coating to form a continuous static shielding layer.

[0033] Working principle: Ratchets 5 and pawls 6 are set on both sides of the tray body 3. The compression spring 9 forces the pawls 6 towards the ratchet 5, so that the pawls 6 tend to fit with the ratchet 5. The height of the tray can be adjusted by moving the tray body 3 upward, so as to adapt to the stacking requirements of electronic components of different specifications. When the pawls 6 contact the return teeth 12, the limiting post 11 moves along the left inclined surface of the spring plate 10 to below the spring plate 10, so that the pawls 6 no longer fit with the rack. At this time, the tray body 3 is moved downward, and the return stop 7 disengages the limiting post 11 from the bottom of the spring plate 10, thereby realizing the return of the tray body 3.

[0034] When the electronic components to be stored are relatively short, move the connecting shaft 18 up into the positioning groove 17, rotate the connecting shaft 18 so that the limit handle 19 fits against the positioning block 16, then remove the shockproof layer 2 and move the tray body 3 to the bottom of the outer shell 1, and slide it into the secondary tray 20 from the top of the outer shell 1 through the slide groove 13, so that the tray can hold more electronic components.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hierarchically expandable anti-static tray comprising a housing (1), characterized in that: The bottom of the inner wall of the outer shell (1) is fixedly connected to a shock-absorbing layer (2). The inner wall of the outer shell (1) is slidably connected to a tray body (3). The right side surface of the outer shell (1) is rotatably connected to a pawl (6). The surface of the pawl (6) is fixedly connected to a limiting post (11). The surface of the limiting post (11) is fitted with a spring sheet (10). The right side of the pawl (6) is fixedly connected to a compression spring (9). The right side of the outer shell (1) is fixedly connected to a ratchet rack (5). The top of the ratchet rack (5) is fixedly connected to a return tooth (12). The pawl (6) is meshed with the ratchet rack (5) and the return tooth (12). The front side of the outer shell (1) is provided with a second baffle (15). The front surface of the second baffle (15) is provided with a switch mechanism.

2. The hierarchically expandable anti-static tray of claim 1, wherein: The switching mechanism includes a connecting shaft (18), which is rotatably connected to the inner wall of the second baffle (15). A limit handle (19) is fixedly connected to the front side of the connecting shaft (18). A positioning block (16) is attached to the bottom surface of the limit handle (19). A positioning groove (17) is provided on the front surface of the outer shell (1).

3. A hierarchically expandable anti-static tray according to claim 2, wherein: The surface of the connecting shaft (18) is in contact with the inner wall of the positioning groove (17), the top surface of the positioning block (16) is fixedly connected to the front surface of the outer shell (1), and a return stop (7) is provided on the bottom right side of the outer shell (1).

4. The hierarchically expandable anti-static tray of claim 1, wherein: The inner wall of the front side of the outer shell (1) is provided with a connecting groove, and the inner wall of the connecting groove is slidably connected to the surface of the second baffle (15).

5. The hierarchically expandable anti-static tray of claim 1, wherein: The inner wall of the tray body (3) is slidably connected to a first baffle (4), and the bottom surface of the first baffle (4) is fixedly connected to the inner wall of the outer shell (1).

6. The hierarchically expandable anti-static tray of claim 1, wherein: The right end of the compression spring (9) is fixedly connected to a fixing block one (8), and the right end of the spring sheet (10) is fixedly connected to a fixing block two (14). Both the fixing block one (8) and the fixing block two (14) are fixedly connected to the right side surface of the tray body (3).

7. The layered expandable antistatic tray according to claim 1, characterized in that: The outer shell (1) has grooves (13) on both the left and right sides, and the tray body (3) is slidably connected to the inner wall of the groove (13).

8. The layered expandable antistatic tray according to claim 7, characterized in that: The inner wall of the chute (13) is slidably connected to a secondary tray (20), and the bottom surface of the secondary tray (20) is in contact with the top surface of the tray body (3).

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