Drop-resistant plastic pallet

Abstract

The utility model discloses a kind of drop-resistant plastic pallets, it includes, the bottom foot is provided with recess, support body is provided with in the recess by buffer elastic member, the cavity of the buffer elastic member is communicated with outside by air passage, the second opening of the air passage is located in cavity, and the first opening to the second opening aperture of air passage gradually reduces, so that the passage volume of air passage gradually reduces.The utility model is provided in the recess of bottom foot by buffer elastic member, and its cavity is communicated with outside by air passage;Support body connects buffer elastic member, provides compressible support when being impacted, air passage is tapered tube body, aperture is tapered from first opening to second opening, forms airflow damping, inhibits tray bounce reduces tray stress, pressure relief is linear uniform buffering when carrying, effectively protects the posture of goods.

Description

Technical Field

[0001] This utility model relates to the field of pallet technology, and in particular to a shock-resistant plastic pallet. Background Technology

[0002] The impact resistance of plastic pallets primarily depends on their material type and structural design. Currently, common impact resistance optimization solutions include using high-toughness materials (such as HDPE and modified PP) and optimizing support structures (such as reinforcing ribs and anti-collision edges). Furthermore, some patented technologies (such as CN222361253U and CN220536237U) propose incorporating springs or spring sheets into the support legs at the bottom of the pallet to absorb the impact energy from drops or handling, thereby improving impact resistance.

[0003] However, such spring or spring damping solutions have certain limitations:

[0004] The cushioning effect is concentrated on elastic deformation: the cushioning effect of springs or spring sheets mainly relies on their own deformation to absorb the impact, while the main structure of the tray still bears a large reaction force.

[0005] Significant recoil effect: Due to the rebound characteristics of elastic elements, the pallet may bounce multiple times during the drop due to the reaction force, which will reduce the stability of the goods and even aggravate structural damage. Utility Model Content

[0006] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0007] To address the aforementioned problems, this utility model provides the following technical solution: a drop-resistant plastic pallet includes an adapter groove on the upper surface of the pallet and a foot on its bottom, characterized in that: the foot has a groove, a support body is provided in the groove through a buffer elastic element, and the cavity of the buffer elastic element is connected to the outside through a vent.

[0008] Preferably, the second opening of the ventilation section is located inside the cavity, and the diameter of the ventilation section gradually decreases from the first opening to the second opening, so that the channel volume of the ventilation section gradually decreases.

[0009] Preferably, the venting part is a pipe, and the pipe and the buffer elastic element are an integral structure.

[0010] Preferably, the outer surface of the cushioning elastic element has alternating protrusions and depressions.

[0011] Preferably, the protrusions and depressions are separated from the inner wall of the groove.

[0012] Preferably, the vent is connected to the connection hole of the support.

[0013] Preferably, the bottom of the support body is provided with an adaptive opening and is connected to the connection hole.

[0014] Preferably, the tray has evenly spaced perforations.

[0015] Preferably, the base is provided with a groove, and the support body fits snugly into the groove.

[0016] Preferably, both sides of the support body are provided with threaded holes that are threadedly connected to one end of the slider, and the other end is slidably disposed in the groove, and the distance between the two sliders is less than the width of the adapter groove.

[0017] The beneficial effects of this utility model are: the buffer elastic element is set in the bottom groove, and its cavity is connected to the outside through the vent; the support body is connected to the buffer elastic element, which provides compressible support when impacted; the vent is a tapered tube, with the diameter gradually decreasing from the first opening to the second opening, forming airflow damping, suppressing pallet bounce and reducing the stress on the pallet; when carrying goods, the pressure relief is linear and uniform, effectively protecting the posture of the goods. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a perspective view of the entire embodiment.

[0020] Figure 2 This is an exploded perspective view of the base in this embodiment.

[0021] Figure 3 This is an example. Figure 2 Assembly drawing.

[0022] Figure 4 This is an example. Figure 3 A sectional view.

[0023] Figure 5 This is an example. Figure 2 or Figure 4 A three-dimensional sectional view of the intermediate buffer elastic element.

[0024] In the diagram; tray 100, adapter groove 100a, cutout 100b;

[0025] Base 200, groove 200a, slide 200b;

[0026] Buffer elastic element 300, cavity 300a, vent 301, first opening 301a, second opening 301b, tube body 301c, channel 301-1, protrusion 302, and recess 303;

[0027] Support body 400, connecting hole 401, adapter opening 401a, threaded hole 402, slider 403. Detailed Implementation

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0031] Example 1

[0032] Reference Figure 2 , Figure 5 This embodiment of the present invention provides a drop-resistant plastic tray, including an adapter groove 100a on the upper surface of the tray 100 and a foot 200 at its bottom. The foot 200 is characterized by a groove 200a, within which a support body 400 is provided via a buffer elastic member 300. The cavity 300a of the buffer elastic member 300 is connected to the outside via a vent 301. The second opening 301b of the vent 301 is located within the cavity 300a, and the diameter of the openings from the first opening 301a to the second opening 301b of the vent 301 gradually decreases, causing the volume of the channel 301-1 of the vent 301 to gradually decrease. The vent 301 is a tube 301c, and the tube 301c and the buffer elastic member 300 are an integral structure.

[0033] Specifically, the upper surface of the pallet 100 is provided with an adapter groove 100a, which is used to engage with the bottom foot 200 of the lower pallet when multiple pallets are stacked to improve stacking stability. The bottom is provided with a bottom foot 200 to support the entire pallet and provide a cushioning function. The bottom foot 200 is provided with a groove 200a inside, which is used to install the cushioning elastic element 300 and the support body 400 to match the adapter groove 100a, ensuring precise alignment when the upper and lower pallets are stacked and preventing slippage.

[0034] The buffer elastic element 300 is installed in the base groove 200a and has an internal cavity 300a for compression and energy absorption. It is connected to the outside through the vent 301 to adjust the air pressure to optimize the buffer performance. The support body 400 is connected to the buffer elastic element 300 and provides compressible support when subjected to impact to reduce rigid collisions. The vent 301 adopts a tapered tube 301c, and the diameter of the opening from the first opening 301a to the second opening 301b gradually decreases, forming an airflow damping effect and increasing the air intake expansion rate of the buffer elastic element 300. It is integrally formed with the buffer elastic element 300 to improve the structural strength and sealing performance.

[0035] Application scenario: When multiple pallets are stacked, the bottom foot 200 of the upper pallet is embedded into the adapter groove 100a of the lower pallet to form a self-locking structure to prevent horizontal sliding. When falling, the support body 400 compresses the buffer elastic element 300, and the air in the cavity 300a is slowly discharged through the gradually narrowing vent 301 to form a damping buffer. Due to the gradually narrowing design of the vent 301, the air backfilling speed is reduced, reducing pallet rebound, preventing goods from shifting, and providing buffer protection for the pallet 100 structure.

[0036] The cushioning elastic element 300 is installed in the foot groove 200a and has an internal cavity 300a for compression and energy absorption. It is connected to the outside through the vent 301 to adjust the air pressure to optimize the cushioning performance. The support body 400 is connected to the cushioning elastic element 300 and provides compressible support when impacted to reduce rigid collisions. The vent 301 adopts a tapered tube 301c, and the diameter of the opening from the first opening 301a to the second opening 301b gradually decreases to form an airflow damping effect, reducing the unnecessary bounce of the tray. When the tray is loaded, its pressure relief mode is uniform and linear, which is also reflected in the cushioning. This cushioning method is more conducive to protecting the load.

[0037] Example 2

[0038] Reference Figure 2 , Figure 4 In another embodiment of the present invention, the outer surface of the buffer elastic member 300 has alternating protrusions 302 and recesses 303, which are separated from the inner wall of the groove 200a.

[0039] Specifically, it has alternating protrusions 302 and depressions 303, forming a wavy or sawtooth profile.

[0040] Meanwhile, the bottom of the support body 400 is provided with an adaptable opening 401a and is connected to the connecting hole 401. The protrusion 302 and the recess 303 are kept separate from the inner wall of the bottom groove 200a, forming a non-contact buffer gap, which improves the response rate of the buffer elastic element 300 to recover its expansion state. At the same time, the wave-shaped or sawtooth profile also corresponds to a uniform and linear buffer feature (the alternating structure makes the buffer process present a step-like force value change, avoiding instantaneous peak impact). This is beneficial for the pallet 100 to achieve linear buffering of goods with slight sinking when carrying them.

[0041] Example 3

[0042] Reference Figure 1 In another embodiment of this utility model, the tray 100 is provided with evenly distributed perforations 100b. By setting the perforations 100b, the tray 100 is made into a mesh, which disperses the stress of the tray 100 and improves its drop resistance.

[0043] Specifically, perforated holes 100b are evenly opened on the upper surface and / or sidewalls of the tray 100, so that the tray presents a grid-like frame structure. The perforation shape can be circular, hexagonal or strip, preferably honeycomb arrangement (bionic structure, optimal stress distribution), and the perforation rate is controlled at 30%-50% (balancing weight reduction and structural strength).

[0044] It is worth mentioning that the hollowed-out area avoids key load-bearing parts such as the base 200 and the adapter groove 100a.

[0045] Example 4

[0046] Reference Figures 2 to 5 In another embodiment of this utility model, a groove 200b is provided on the base 200, and the support body 400 is fitted into the groove 200a. Both sides of the support body 400 are provided with threaded holes 402 that are threadedly connected to one end of the slider 403, and the other end is slidably disposed in the groove 200b. The distance between the two sliders 403 is less than the width of the fitting groove 100a. The purpose is to allow the support body 400 to slide movably on the upper base 200 and to be connected with the base 200.

[0047] Specifically, longitudinal grooves 200b are symmetrically opened on both sides of the base 200. The cross-section of the grooves 200b is T-shaped or dovetail-shaped to prevent the slider from falling out. Threaded holes 402 are machined on both sides of the support body 400. The hole diameter matches the thread of the slider 403. One end of the slider 403 is connected to the support body by a thread, and the other end is inserted into the groove 200b to slide. The distance between the outer sides of the two sliders 403 is less than the width of the adapter groove 100a, so that the base 200 can cooperate with the adapter groove 100a.

[0048] In this embodiment, the support body 400 is able to be completely submerged in the groove 200a of the foot 200 after the buffer elastic element 300 is fully compressed. The selection of the number and material of the buffer elastic element 300 should meet the requirement that all buffer elastic elements 300 are compressed to the same preset depth under the weight of the tray, that is, the support body 400 is submerged in the groove 200a.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A shock-resistant plastic pallet, comprising an adapter groove (100a) on the upper surface of the pallet (100) and feet (200) on its bottom, characterized in that: The base (200) is provided with a groove (200a), and a support (400) is provided in the groove (200a) through a buffer elastic element (300). The cavity (300a) of the buffer elastic element (300) is connected to the outside through a vent (301).

2. The impact-resistant plastic pallet as described in claim 1, characterized in that: The second opening (301b) of the ventilation section (301) is located inside the cavity (300a), and the aperture of the ventilation section (301) from the first opening (301a) to the second opening (301b) gradually decreases, so that the volume of the channel (301-1) of the ventilation section (301) gradually decreases.

3. The impact-resistant plastic pallet as described in claim 2, characterized in that: The ventilation section (301) is a tube (301c), and the tube (301c) and the buffer elastic element (300) are an integral structure.

4. The impact-resistant plastic pallet as described in claim 1, characterized in that: The outer surface of the buffer elastic element (300) has alternating protrusions (302) and recesses (303).

5. The impact-resistant plastic pallet as described in claim 4, characterized in that: The protrusion (302) and the recess (303) are separated from the inner wall of the groove (200a).

6. The impact-resistant plastic pallet as described in claim 1, characterized in that: The ventilation section (301) is connected to the connection hole (401) of the support body (400).

7. The impact-resistant plastic pallet as described in claim 6, characterized in that: The bottom of the support (400) is provided with an adaptation opening (401a) and is connected to the connection hole (401).

8. The impact-resistant plastic pallet as described in claim 1, characterized in that: The tray (100) has evenly spaced perforations (100b).

9. The impact-resistant plastic pallet as described in claim 1, characterized in that: The base (200) is provided with a groove (200b), and the support (400) is fitted into the groove (200a).

10. The impact-resistant plastic pallet as described in claim 9, characterized in that: Both sides of the support (400) are provided with threaded holes (402) that are threaded to one end of the slider (403), and the other end is slidably disposed in the groove (200b). The distance between the two sliders (403) is less than the width of the adapter groove (100a).

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