A blister tray for storing battery cases

Abstract

The utility model relates to blister tray technical field, especially store the blister tray of battery case, including tray block, the tray block is shaped with multiple uniform equidistance arrangement's storage groove, the shape of storage groove is compatible with the shape of battery case, the inside groove of corner is provided with the lock structure that cooperates with the lock of corner convex block, the lock structure includes the top round hole shaped in the inside groove of corner, the top round hole is installed with the round connecting block, the round connecting block protrudes to the bottom of tray block, the part of connecting cylinder protrusion can be inserted to the top round hole of another tray block, when multiple tray blocks stack, the inside groove of tray corner and convex block coaxial alignment, ensure vertical accurate positioning when multilayer stack, prevent lateral deviation, the lock structure firmly connects adjacent tray block, the cooperation of top round hole and round connecting block not only provides the positioning, still forms axial locking, prevent tray block accidental separation, and the lock structure does not occupy the effective storage space of tray block.

Description

Technical Field

[0001] This utility model relates to the field of blister tray technology, and in particular to a blister tray for storing battery cases. Background Technology

[0002] Pallets are the medium that transforms static goods into dynamic goods; they are a cargo-carrying platform, and moreover, a movable platform, or a mobile ground. Even goods that lose their flexibility when placed on the ground immediately gain mobility and become flexible, flowing goods once loaded onto a pallet, because goods on a pallet are always in a ready-to-move state. This dynamic loading and unloading method, based on pallets as the fundamental tool, is called palletizing.

[0003] Application CN202421424011.8 discloses a blister tray for motor housings, comprising a tray body, a rear housing placement tray at the top of the tray body with a partition plate inside, a front housing placement tray stacked on top of the rear housing placement tray with a cross plate inside, a middle housing placement tray stacked on top of the front housing placement tray with a partition plate at the top. The arrangement of components such as the rear housing placement tray, partition plate, rear housing placement slot, front housing placement tray, cross plate, front housing placement slot, middle housing placement tray, and partition plate effectively solves the problem that existing trays only have a single structure, limiting the placement tray to a single component, whereas a motor housing consists of a front housing, middle housing, and rear housing.

[0004] Most existing technologies use only simple positioning structures with single protrusions and grooves at the corners, resulting in poor positioning references. When stacking multiple layers, relying solely on corner supports cannot limit lateral slippage and longitudinal tilting in the center of the pallet. Under conditions of transportation bumps, manual handling, or high-level stacking, problems such as inter-layer misalignment, tilting, or even stack collapse are very likely to occur. At the same time, some pallets are not designed with error prevention structures, making them prone to reverse stacking, which can lead to uneven pressure on the battery casing and structural damage. Utility Model Content

[0005] The purpose of this invention is to provide a blister tray for storing battery cases, addressing the shortcomings of existing technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: A blister tray for storing battery cases includes multiple stacked tray blocks formed from plastic. Each tray block has multiple evenly spaced storage slots, the shape of which is adapted to the shape of the battery case. Each storage slot includes a circular slot with multiple recessed grooves formed around it. The recessed grooves between two adjacent storage slots are connected. A recessed central groove is formed in the middle of the circular slot. Each of the four corners of the top surface of the tray block has a recessed corner groove, which is connected to the nearest recessed groove. Each of the four corners of the bottom surface of the tray block has a protruding corner protrusion, which is coaxially aligned with the corner protrusion. The corner protrusion is provided with a locking structure that engages with the corner protrusion. The locking structure includes a top circular hole formed in the corner protrusion, and a circular connecting block is installed in the top circular hole. The circular connecting block protrudes towards the bottom of the tray block, and the protruding part of the connecting block can be inserted into the top circular hole of another tray block.

[0007] Furthermore: the upper half of the top circular hole allows for the coaxial insertion of a circular connecting block, the top of the circular connecting block is lower than the top of the top circular hole, and the protruding bottom of the circular connecting block can abut against the top of the circular connecting block of another tray block.

[0008] Furthermore: the circular connecting block has a through locking hole formed axially, and the downward protruding part of the circular connecting block is provided with a locking structure. The locking structure includes a locking block that is radially installed on the circular connecting block, and the upper half of the top circular hole has a side wall locking groove that radially matches the locking block.

[0009] Furthermore: the locking hole has a through radially movable groove formed in the hole wall, and the locking block with radial elastic retraction is installed in the radially movable groove. The top and bottom of the inner wall of the locking block are respectively formed with first guide slopes.

[0010] Furthermore: a locking pin is movably inserted into the locking hole, and the top and bottom of the locking pin are respectively formed with second guide chamfers that slide in cooperation with the first guide slope.

[0011] Furthermore: a limiting groove is formed at the top of the radial movable groove, a limiting movable block that moves along the length of the limiting groove is installed at the top of the radial movable block, and a compression spring that drives the locking block to elastically retract along the radial movable groove is installed in the limiting groove.

[0012] Furthermore: the bottom of the pallet block is formed with a first guide block and a second guide block that protrude downwards, the first guide block being coaxially aligned with the lower groove of another pallet block, and the second guide block being coaxially aligned with the middle groove of another pallet block.

[0013] Furthermore: the bottom of the first guide block abuts against the edge area of ​​the top surface of the battery case of the other tray block, and the bottom of the second guide block abuts against the middle area of ​​the top surface of the battery case of the other tray block.

[0014] Furthermore: the top surface of the pallet block is formed with multiple upright guide protrusions, and the bottom surface of the pallet block is formed with concave guide grooves. When two adjacent pallet blocks are stacked, the guide protrusions can be embedded into the guide grooves.

[0015] Furthermore: The pallet block has handles formed on both the left and right sides, and the handles have inverted triangular grooves for easy lifting.

[0016] The beneficial effects of this utility model are as follows: After all the battery cases are stored in the storage slots, the entire structure is flat, and the lower groove is completely covered. When removing the battery cases, if the battery cases are tightly attached to the storage slots, it is often necessary to use tools such as tweezers or suction cups to help remove them. This not only increases the number of operation steps, but may also scratch the battery cases due to improper use of tools. Operators can directly use the connecting structure between the inner groove at the corner and the lower groove to pry off the battery cases at the corners by hand. As the corner battery cases are removed, new lower grooves are exposed to form new points of force, and so on to complete the unloading of all battery cases. When multiple pallet blocks are stacked, the inner grooves at the corners of the pallet are coaxially aligned with the raised blocks, ensuring precise vertical positioning during multi-layer stacking and preventing lateral shifting and tipping risks. The locking structure firmly connects adjacent pallet blocks, maintaining stability even during transport bumps or handling, and preventing collisions and misalignment between pallet blocks. The engagement of the top circular hole and the circular connecting block not only provides positioning but also forms an axial lock, preventing accidental separation of pallet blocks; moreover, the locking structure is integrated into the corner area of ​​the pallet block, without occupying the effective storage space of the pallet block. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of two stacked blister trays.

[0018] Figure 2 This is a schematic diagram of three stacked blister trays.

[0019] Figure 3 This is a schematic diagram of the structure when the two blister trays are separated.

[0020] Figure 4 A cross-sectional view showing the combination of multiple corner recesses and corner protrusions.

[0021] Figure 5 A cross-sectional view of a single corner recess and corner protrusion.

[0022] The reference numerals in the figures include: 1-Pallet block, 10-Storage slot, 11-Circular slot, 12-Lower groove, 13-Middle groove, 14-First guide block, 15-Second guide block, 16-Guide protrusion, 17-Guide groove, 18-Handle base, 19-Inverted triangular groove, 2-Locking structure, 21-Corner recessed groove, 22-Corner protrusion, 23-Top circular hole, 24-Circular connecting block. 25-Locking hole, 26-Locking block, 27-Side wall locking groove 3-Locking structure, 31-Locking pin, 32-Radial movable groove, 33-First guide slope, 34-Second guide chamfer, 35 - Limiting groove, 36 - Limiting movable block, 37 - Compression spring. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] like Figure 1-5 As shown, a blister tray for storing battery cases includes multiple stacked tray blocks 1 formed from plastic. Each tray block 1 has multiple evenly spaced storage slots 10, the shape of which is adapted to the shape of the battery case. Each storage slot 10 includes a circular slot 11, around which multiple concave recesses 12 are formed. The recesses 12 between two adjacent storage slots 10 are connected. A concave central recess 13 is formed in the middle of the circular slot 11. Concave corner recesses 21 are formed at the four corners of the top surface of the tray block 1, and the corner recesses 21 are connected to the nearest recess 12. Concave corner protrusions 22 are formed at the four corners of the bottom surface of the tray block 1, and the corner protrusions 22 are coaxially aligned with the corner recesses 21.

[0025] After all the battery cases are stored in the storage slots 10, the entire structure is flat, and the lower groove 12 is completely covered. When removing the battery cases, if the battery cases are tightly attached to the storage slots 10, it is often necessary to use tools such as tweezers or suction cups to assist in removal. This not only increases the number of steps but may also scratch the battery cases due to improper use of tools. Operators can directly use the connecting structure between the corner inner groove 21 and the lower groove 12 to pry off the battery cases at the corners by hand. As the corner battery cases are removed, new lower grooves 12 are exposed, forming new points of force, and so on to complete the unloading of all battery cases. The entire process requires no additional tools, greatly reducing the operational threshold. Even non-professionals can quickly get started, improving the turnover efficiency of warehousing and production lines. The orderly unloading sequence can prevent individual battery cases from being missed due to obstruction, ensuring that the battery cases on each pallet can be completely removed, improving the integrity of batch unloading, and reducing problems such as unstable pallet stacking and wasted storage space caused by residual battery cases.

[0026] Furthermore, the bottom of the tray block 1 is formed with a first guide block 14 and a second guide block 15 protruding downwards. The first guide block 14 is coaxially aligned with the lower groove 12 of the other tray block 1, and the second guide block 15 is coaxially aligned with the middle groove 13 of the other tray block 1. The bottom of the first guide block 14 abuts against the edge area of ​​the top surface of the battery case of the other tray block 1, and the bottom of the second guide block 15 abuts against the middle area of ​​the top surface of the battery case of the other tray block 1. Since the battery case has a cylindrical structure, it is easy to loosen during transportation and handling after storage. The storage slot 10 restricts the lateral displacement of the battery case from the side, while the first guide block 14 and the second guide block 15 abut against the top surface of the battery case from the top. During transportation bumps and handling vibrations, the battery case will not sway left and right in the storage slot 10, nor will it collide and rub against the top of the storage slot 10 due to vertical movement.

[0027] In addition, the first guide block 14 and the second guide block 15 directly transfer the weight of the upper tray to the hard point area on the top surface of the battery case, avoiding the weight from being concentrated on the edge of the tray block 1 or the side wall of the storage slot 10. This not only prevents the tray block 1 from deforming due to excessive local stress, but also protects the structure of the top surface of the battery case from being damaged by pressure, and significantly reduces the scrap rate of the battery case when stacking multiple layers.

[0028] Preferably, the top surface of the pallet block 1 has multiple upright guide protrusions 16, and the bottom surface of the pallet block 1 has a concave guide groove 17. When two adjacent pallet blocks 1 are stacked, the guide protrusions 16 can be embedded into the guide groove 17. When multiple layers are stacked, the guide protrusions 16 are precisely embedded into the guide groove 17 of the lower pallet block 1. Even under conditions of rapid handling, high-level stacking, or transportation bumps, lateral slippage, longitudinal tilting, or local warping between pallet blocks 1 can be avoided, ensuring the verticality and neatness of the stacked structure. Moreover, when stacked, the guide grooves 17 of the upper and lower pallet blocks 1 fit and support each other, which can evenly distribute the weight of the upper pallet block 1 and the battery case to the entire area of ​​the pallet block 1, avoiding excessive weight concentration on a single support point at the corner or center.

[0029] Preferably, the pallet block 1 has handles 18 formed on both the left and right sides, and the handles 18 have inverted triangular grooves 19 for easy lifting; when separating the upper pallet block 1, the inverted triangular grooves 19 of the handles 18 can be used by workers to hold and insert, or by the clamps of the palletizing robot to insert, so as to grasp and facilitate separation.

[0030] The inner groove 21 at the corner is provided with a locking structure 2 that engages with the corner protrusion 22. The locking structure 2 includes a top circular hole 23 formed in the inner groove 21 at the corner. A circular connecting block 24 is installed in the top circular hole 23. The circular connecting block 24 protrudes towards the bottom of the tray block 1. The protruding part of the connecting cylinder can be inserted into the top circular hole 23 of another tray block 1.

[0031] When multiple pallet blocks 1 are stacked, the inner grooves at the corners of the pallet are coaxially aligned with the raised blocks, ensuring precise vertical positioning during multi-layer stacking and preventing lateral shifting and tipping risks. The locking structure 2 firmly connects adjacent pallet blocks 1, maintaining stability even during transport bumps or handling, and preventing collisions and misalignments between pallet blocks 1. The engagement of the top circular hole 23 with the circular connecting block 24 not only provides positioning but also forms an axial lock, preventing accidental separation of pallet blocks 1. Furthermore, the locking structure 2 is integrated into the corner area of ​​the pallet block 1, without occupying the effective storage space of the pallet block 1, maintaining a simple and efficient design.

[0032] Furthermore, the upper half of the top circular hole 23 allows for the coaxial insertion of a circular connecting block 24. The top of the circular connecting block 24 is lower than the top of the top circular hole 23, and the protruding bottom of the circular connecting block 24 can abut against the top of the circular connecting block 24 of another pallet block 1. The protruding bottom of the circular connecting block 24 of each layer of pallet block 1 abuts against the top of the circular connecting block 24 of the layer below, so that the corner locking structure 2 of the multi-layer pallet block 1 forms a vertical series support structure. This series structure evenly transfers the weight of the upper pallet to each connecting block and then distributes it to the corners of the pallet, avoiding the concentration of load on a local structure of a certain layer.

[0033] Furthermore, the circular connecting block 24 has an axially formed through-hole locking hole 25, and the downwardly protruding part of the circular connecting block 24 is provided with a locking structure 3. The locking structure 3 includes a locking block 26 radially installed on the circular connecting block 24, and the upper half of the top circular hole 23 has a side wall locking groove 27 that radially engages with the locking block 26. When the circular connecting block 24 of the upper pallet block 1 is inserted into the top circular hole 23 of the lower layer, the locking block 26 will engage with the side wall locking groove 27, forming a radial lock. At this time, the pallet blocks 1 between the upper and lower layers are interlocked and will not separate. Even if multiple pallet blocks 1 are stacked in sequence, they can still interlock and form a whole. Even under severe working conditions such as violent bumps, hoisting and transportation, there will be no risk of interlayer detachment or stacking, greatly improving the safety of transportation and storage.

[0034] Furthermore, the locking hole 25 has a radially through radially movable groove 32 formed in its wall. The radially movable groove 32 is fitted with the radially elastically retractable locking block 26. The top and bottom of the inner wall of the locking block 26 are respectively formed with first guide slopes 33. A locking pin 31 is movably inserted into the locking hole 25. The top and bottom of the locking pin 31 are respectively formed with second guide chamfers 34 that slide in cooperation with the first guide slopes 33. After multiple tray blocks 1 are stacked, two adjacent circular connecting blocks 24 cooperate with the top circular holes 23 to form a coaxial structure. The multiple circular connecting blocks 24 form a columnar structure, and the multiple top circular holes 23 are interconnected, allowing the locking pin 31 to be inserted. The locking pin 31 cooperates with each tray block 1 in sequence. The second guide chamfers 34 will press against the first guide slopes 33 of the locking block 26. Using the reverse driving action of the slope, the locking block 26 is forced to move radially outward. The locking block 26 will then be locked into the side wall locking groove 27, forming a radial lock.

[0035] It should be noted that since the first guide slope 33 is formed on the top and bottom of the inner wall of the locking block 26 respectively, the locking pin 31 can be inserted from the top of the top circular hole 23 or from the bottom of the top circular hole 23, without being restricted by orientation, thus completing the locking.

[0036] Furthermore, a limiting groove 35 is formed at the top of the radial movable groove 32, and a limiting movable block 36 is installed at the top of the radial movable block, which moves along the length direction of the limiting groove 35. A compression spring 37 is installed in the limiting groove 35 to drive the locking block 26 to elastically retract along the radial movable groove 32. When the tray needs to be disassembled, simply pull out the locking pin 31. Under the action of the compression spring 37, the locking block 26 retracts along the radial movable groove 32, and the locking block 26 disengages from the side wall locking groove 27, thus easily releasing the interlayer locking.

[0037] It should be noted that the circular connecting block 24 with locking hole 25 and locking structure 3 is a modular structure. After the tray block 1 is injection molded or stamped, the circular connecting block 24 is connected to the top circular hole 23 through a threaded structure to achieve connection. When the entire module of circular connecting block 24 is damaged, it can be disassembled and replaced for easy reuse.

[0038] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0039] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A blister tray for storing battery cases, comprising multiple stacked tray blocks formed from plastic, each tray block having multiple evenly spaced storage slots, the shape of which is adapted to the shape of the battery case, characterized in that: The storage slot includes a circular slot, with multiple concave grooves formed around the circular slot. The grooves between two adjacent storage slots are connected, and a concave central groove is formed in the middle of the circular slot. The four corners of the top surface of the pallet block are respectively formed with concave corner grooves, which are connected to the nearest lower groove. The four corners of the bottom surface of the pallet block are respectively formed with corner protrusions that bulge towards the bottom, and the corner protrusions are coaxially aligned with the corner grooves. The corner grooves are provided with a locking structure that engages with the corner protrusions. The locking structure includes a top circular hole formed in the corner groove, and a circular connecting block is installed in the top circular hole. The circular connecting block protrudes towards the bottom of the pallet block, and the protruding part of the connecting block can be inserted into the top circular hole of another pallet block.

2. The blister tray for storing battery cases according to claim 1, characterized in that: The upper half of the top circular hole allows the circular connecting block to be coaxially inserted. The top of the circular connecting block is lower than the top of the top circular hole, and the protruding bottom of the circular connecting block can abut against the top of the circular connecting block of another tray block.

3. The blister tray for storing battery cases according to claim 2, characterized in that: The circular connecting block has a through locking hole formed axially, and the downward protruding part of the circular connecting block is provided with a locking structure. The locking structure includes a locking block that is radially installed on the circular connecting block, and the upper half of the top circular hole has a side wall locking groove that radially cooperates with the locking block.

4. The blister tray for storing battery cases according to claim 3, characterized in that: The locking hole has a through radial movable groove formed in its wall, and the locking block with radial elastic retraction is installed in the radial movable groove. The top and bottom of the inner wall of the locking block are respectively formed with first guide slopes.

5. A blister tray for storing battery cases according to claim 4, characterized in that: The locking hole is movably inserted with a locking post, and the top and bottom of the locking post are respectively formed with second guide chamfers that slide in cooperation with the first guide slope.

6. A blister tray for storing battery cases according to claim 5, characterized in that: The top of the radial movable groove is formed with a limiting groove, and the top of the radial movable block is equipped with a limiting movable block that moves along the length direction of the limiting groove. The limiting groove is equipped with a compression spring that drives the locking block to elastically retract along the radial movable groove.

7. A blister tray for storing battery cases according to claim 1, characterized in that: The bottom of the tray block is formed with a first guide block and a second guide block that protrude downwards. The first guide block is coaxially aligned with the lower groove of another tray block, and the second guide block is coaxially aligned with the middle groove of another tray block.

8. A blister tray for storing battery cases according to claim 7, characterized in that: The bottom of the first guide block abuts against the edge of the top surface of the battery case of another tray block, and the bottom of the second guide block abuts against the middle area of ​​the top surface of the battery case of another tray block.

9. A blister tray for storing battery cases according to claim 8, characterized in that: The top surface of the pallet block has multiple upright guide protrusions, and the bottom surface of the pallet block has a concave guide groove. When two adjacent pallet blocks are stacked, the guide protrusions can be embedded into the guide groove.

10. A blister tray for storing battery cases according to claim 9, characterized in that: The pallet block has handles formed on its left and right sides, and the handles have inverted triangular grooves for easy lifting.

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