CN218142813U

CN218142813U - Blow molding bending support leg tray

Info

Publication number: CN218142813U
Application number: CN202222126948.4U
Authority: CN
Inventors: 王涵琳; 周文龙; 刘筱宸
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-13
Filing date: 2022-08-13
Publication date: 2022-12-27
Anticipated expiration: 2032-08-13

Abstract

The utility model relates to a technical field of commodity circulation transportation tray, more specifically relates to a blow molding stabilizer blade tray of bending. The panel comprises more than two plates arranged in parallel, and rectangular positioning bayonets are arranged on the side surfaces of the plates; the support legs are at least two and are matched and connected below the plate through pin shafts and shaft holes, and the support legs are in an S-shaped folded plate shape in the length direction; the upper end surface of the support leg is provided with a positioning block matched with the positioning bayonet, and the positioning block is correspondingly clamped in the positioning bayonet; the plate and the support legs are hollow structures formed by blow molding. Blow molding bending support leg tray compressive strength is big, can satisfy the requirement of commodity circulation transportation trade, produces required mould small, can effective reduction in production cost, and its structure is convenient for manufacture and materials are less, low in production cost, long service life, and local damage accessible is changed spare part and is reached the purpose of restoreing back used repeatedly.

Description

Blow molding bending support leg tray

Technical Field

The utility model relates to a technical field of commodity circulation transportation tray, more specifically relates to a blow molding stabilizer blade tray of bending.

Background

The tray is used as a bearing container in the logistics industry, and an overhead supporting structure is arranged below the tray surface for facilitating the overall storage, taking and carrying of the forklift. The early-rising tray is formed by splicing battens, is not fireproof, is easy to be bitten by insects and corroded by rainwater, has poor strength and short service life; in order to overcome the defects of the wooden tray, the plastic tray is produced. The corrosion resistance, the water resistance and the fire resistance of the plastic tray are all superior to those of a wooden tray, and the service life of the plastic tray is prolonged.

The existing plastic trays are integrally formed by adopting an injection molding process, and the panel and the supporting legs at the bottom are of an integrated structure. The mould used in the production is large, and the mould cost is high; in addition, the tray formed integrally by injection molding only has a solid structure, the material consumption is large, the material cost is high, and the toughness of the tray body and the material is inferior to that of a blow molding product.

Therefore, the trays manufactured by the blow molding process have certain advantages compared with the injection molded trays from the viewpoint of toughness of materials and cost control of materials. However, if the blow molding process is used to produce a tray with a large-area cavity structure, the internal support of the cavity is insufficient, which may easily result in insufficient compressive strength, for example, the legs of the tray bear most of the pressure, and it is difficult to satisfy the requirement of compressive strength by simply increasing the thickness of the blow molded legs. In addition, the tray with an integrated structure has a complicated structure for a blow molding process, and practical production application is difficult to realize.

Disclosure of Invention

An object of the utility model is to provide a new technical scheme of blow molding interlude assembled tray. The tray produced by adopting the blow molding process has enough strength, a structure convenient for production and manufacture and a split type miniaturized mold capable of reducing the production cost.

According to a first aspect of the invention, a blow-molded bending support leg tray is provided, which comprises a panel and support legs arranged below the panel, wherein the panel comprises more than two plates arranged in parallel; the support legs are at least two and are connected below the plate through pin shafts and shaft holes in a matched mode, and the support legs are in an S-shaped folded plate shape in the length direction; the plate and the support legs are hollow structures formed by blow molding.

Through the scheme, the integrated plastic tray is divided into the plate and the support leg which have relatively small volumes, so that the volume of a corresponding production mold is reduced, and the mold cost can be greatly reduced; in addition, the S-shaped folded plate-shaped support leg has higher compressive strength, and the stability of the support is effectively improved under the condition that the thickness of the support leg is not increased. The assembly structure that round pin axle and shaft hole cooperation are connected can realize low-cost maintenance, and it can continue to use as long as change corresponding part when certain part damages, can not cause whole tray to scrap because of local damage. The hollow plate and the support legs have good toughness, large elasticity and less material consumption, can reduce production cost, are convenient to insert, assemble, maintain and replace, can prolong the service life and reduce the use cost.

Preferably, the side face of the plate is provided with a rectangular positioning bayonet, the upper end face of the support leg is provided with a positioning block matched with the positioning bayonet, the positioning block is correspondingly clamped in the positioning bayonet, and the lower end face of the support leg is connected with a pull rod through a pin shaft and a shaft hole in a matched mode.

Through this scheme, the stabilizer blade more than two of pull rod transverse connection constitutes rectangular frame structure jointly with the plate on the stabilizer blade up end, further improves the stability of stabilizer blade.

Preferably, the upper end surface of the supporting leg is provided with an upper pin shaft, the plate is provided with a plate shaft hole penetrating through the plate body, and the upper pin shaft is correspondingly inserted into the plate shaft hole; the height of the upper pin shaft is matched with the thickness of the plate, the lower end of the upper pin shaft is a cylinder, the upper end of the upper pin shaft is a hemisphere, an annular clamping groove is formed in the outer circumferential surface of the cylinder of the upper pin shaft, and a clamping ring matched with the annular clamping groove is arranged on the inner wall of the plate shaft hole.

Through this scheme, the round pin axle connects stabilizer blade and plate in the vertical direction, prescribes a limit to both transverse position simultaneously. Furthermore, the annular clamping groove on the pin shaft is matched with the clamping ring in the plate shaft hole to lock the pin shaft in the plate shaft hole, so that the pin shaft can be prevented from being accidentally separated.

Preferably, a pull rod mounting groove is formed in the lower end face of the support leg, the depth of the pull rod mounting groove is matched with the thickness of the pull rod, a lower pin shaft is arranged at the bottom of the pull rod mounting groove, and the height of the lower pin shaft is matched with the depth of the mounting groove; a pull rod shaft hole matched with the lower pin shaft is formed in the corresponding position of the pull rod; the corresponding part of the pull rod is arranged in the pull rod mounting groove, and the lower pin shaft is arranged in the pull rod shaft hole.

Through this scheme, be connected to the lower extreme of stabilizer blade with the pull rod through round pin axle and shaft hole to the lower terminal surface of pull rod and stabilizer blade keeps the coplanar after connecting, and the stability of stabilizer blade is better.

Preferably, the upper end surface of the supporting leg is provided with an upper pin shaft, the plate is provided with a plate shaft hole penetrating through the plate body, and the upper pin shaft is correspondingly inserted into the plate shaft hole; the height of the upper pin shaft is matched with the thickness of the plate, the lower end of the upper pin shaft is a cylinder, the upper end of the upper pin shaft is a hemisphere, an annular clamping groove is formed in the outer circumferential surface of the cylinder of the upper pin shaft, and a clamping ring matched with the annular clamping groove is arranged on the inner wall of the plate shaft hole; the upper end face of the supporting leg is provided with a rectangular positioning block, a positioning block mounting hole matched with the positioning block is formed in the lower face of the plate, and the positioning block is correspondingly clamped in the positioning block mounting hole.

Through this scheme, the locating piece mounting hole does not run through the plate, and the integrality and the planarization of plate upper surface are better.

Preferably, the lower surface of the plate is provided with convex ribs which are arranged along the length direction and penetrate through two ends of the plate, concave rib grooves are arranged at the intersection positions of the support legs and the convex ribs, and the cross section shapes of the rib grooves are matched with the convex ribs.

Through this scheme, the compressive strength of plate can be strengthened to the fin, and the fin can strengthen the stability of stabilizer blade again with stabilizer blade cross joint.

Preferably, the bending part of the support leg is provided with a fabrication hole transversely penetrating through two sides of the support leg body.

Through this scheme, the weight of stabilizer blade can be alleviateed in the fabrication hole that increases, and the inner wall in fabrication hole is equivalent to the strengthening rib of connecting between hollow structure's stabilizer blade both sides wall, can effectively improve the toughness and the compressive strength of stabilizer blade, alleviate the stress of stabilizer blade department of bending.

According to an embodiment of the present disclosure, blow molding bending support leg tray compressive strength is big, can satisfy the requirement of commodity circulation transportation trade, produces required mould small, can effectively reduce manufacturing cost, its structure is convenient for manufacture and materials are less, low in production cost, long service life, local damage accessible is changed spare part and is reached the mesh of restoreing back used repeatedly.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic view of an assembly structure according to an embodiment of the present invention.

Fig. 2 is a schematic perspective view showing the upper surface of the leg.

Fig. 3 is a schematic perspective view showing the lower surface of the leg.

FIG. 4 is a schematic perspective view of the upper surface of another embodiment of a panel;

fig. 5 is a schematic perspective view of the bottom of the embodiment of fig. 4.

Fig. 6 is a schematic perspective view of a leg according to another embodiment.

Fig. 7 is a top view of the legs of the embodiment of fig. 6.

Fig. 8 is a schematic view of an assembly structure of another embodiment.

Detailed Description

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Examples

As shown in fig. 1, the blow-molded bending leg tray in this embodiment includes a panel and legs disposed below the panel, the panel includes more than two plate blocks 1 disposed in parallel, and the number of the panels is preferably 2, 3 or 4. The plate 1 and the support leg 2 are both hollow structures formed by blow molding. The side surface of the plate 1 is provided with a rectangular positioning bayonet 3; the support legs 2 are at least two and are connected below the plate 1 in a matching way through pin shafts and shaft holes, and the support legs 2 are in an S-shaped folded plate shape in the length direction; the upper end face of the supporting leg 2 is provided with a positioning block 4 matched with the positioning bayonet 3, and the positioning block 4 is correspondingly clamped in the positioning bayonet 3.

At the time of production, the plate 1 and the foot 2 are produced separately using blow moulds and assembled to form a complete pallet before being sold or used. Thus, the volume of the mold required for production is small, and the production, storage and transportation costs can be reduced. In addition, in the use process, if a certain part is damaged, the part can be continuously used only by replacing the corresponding part, and the use and maintenance cost can be reduced.

In addition, in order to improve the stability and firmness of the support leg 2, a pull rod 5 is connected to the lower end face of the support leg 2 through a pin shaft and a shaft hole in a matched mode.

The rectangular frame structure formed by the panel 1, the support legs 2 and the pull rod 5 is convenient to disassemble and assemble, firm in structure and high in bearing capacity. Of course, if the support leg 2 has sufficient rigidity and is not subjected to a large lateral force, the tie bar 5 may not be provided on the lower surface of the support leg 2.

As shown in fig. 1 and 2, an upper pin 21 is disposed on the upper end surface of the supporting leg 2, a plate shaft hole 31 penetrating through the plate body is disposed on the plate 1, and the upper pin 21 is correspondingly inserted into the plate shaft hole 31. The height of the upper pin shaft 21 is matched with the thickness of the plate 1, so that when the upper pin shaft 21 is inserted into the plate shaft hole 31, the upper end of the upper pin shaft 21 is flush with or slightly lower than the upper surface of the plate 1; the lower end of the upper pin shaft 21 is a cylinder, the upper end of the upper pin shaft is a hemisphere, an annular clamping groove 22 is formed in the outer circumferential surface of the cylinder of the upper pin shaft 21, a clamping ring matched with the annular clamping groove is arranged on the inner wall of the plate shaft hole 31, and the clamping ring is an annular convex rib protruding out of the inner wall of the plate shaft hole 31.

After the upper pin shaft 21 is inserted into the plate shaft hole 31, the top end of the upper pin shaft 21 is flush with the upper surface of the plate 1, so that the connection firmness is sufficient, and goods can not be stacked on the plate 1. The upper pin shaft 21 inserted into the plate shaft hole 31 is locked by matching the annular clamping groove 22 with the clamping ring, so that the upper pin shaft 21 is prevented from loosening. Because the supporting legs 2 and the plate 1 are both made by adopting a blow molding process with larger elasticity, the plate 1 is placed on the supporting legs 2 during assembly, the plate shaft hole 31 is aligned to the upper pin shaft 21, the plate shaft hole 31 can be sleeved on the upper pin shaft 21 by slightly applying pressure, the plate 1 is connected with the supporting legs 2, the upper end of the upper pin shaft 21 is flush with or slightly lower than the upper surface of the plate 1 after assembly is completed, and goods are stacked on the plate 1 and cannot extrude the upper pin shaft 21.

As shown in fig. 3, a pull rod mounting groove 24 is formed in the lower end surface of the support leg 2, the depth of the pull rod mounting groove 24 is matched with the thickness of the pull rod 5, a lower pin 25 is arranged at the bottom of the pull rod mounting groove 24, and the height of the lower pin 25 is matched with the depth of the mounting groove 24, that is, the lower pin 25 completely sinks into the mounting groove 24, or at least the top end of the lower pin 25 does not protrude from the mounting groove 24 and is at most flush with the lower end surface of the support leg 2; a pull rod shaft hole 51 matched with the lower pin shaft 25 is formed in the corresponding position of the pull rod 5; the corresponding part of the pull rod 5 is arranged in the pull rod installation groove 24, and the lower pin shaft 25 is arranged in the pull rod shaft hole 51.

The pull rod mounting groove 24 enables the pull rod 5 to be embedded into the lower end face of the support leg 2, the lower end of the support leg 2 is located on a plane after mounting, and the stability of the support leg 2 is not affected while the overall structural strength is improved. In addition, the side wall of the pull rod mounting groove 24 plays a limiting role in the pull rod 5, an included angle between the installed pull rod 5 and the support leg 2 is limited, and the pull rod 5 is prevented from deflecting to affect the stability of the structure.

In addition, in order to further reduce the weight and improve the toughness and the pressure resistance of the support leg 2, the bending part of the support leg 2 is provided with a fabrication hole 23 which transversely penetrates through two sides of the support leg body. The axial line of the fabrication hole 23 is vertical to the pressure bearing direction of the support leg 2, and the arc-shaped side wall of the fabrication hole 23 forms an arch bridge-shaped supporting structure, thereby reducing the weight, reducing the material consumption and improving the pressure bearing capability.

As shown in fig. 4 to 8, in another embodiment of the present invention, an upper pin 21 is disposed on the upper end surface of the supporting leg 2, a plate shaft hole 31 penetrating through the plate body is disposed on the plate 1, and the upper pin 21 is correspondingly inserted into the plate shaft hole 31; the height of the upper pin shaft 21 is matched with the thickness of the plate 1, the lower end of the upper pin shaft 21 is a cylinder, the upper end of the upper pin shaft 21 is a hemisphere, an annular clamping groove 22 is formed in the outer circumferential surface of the cylinder of the upper pin shaft 21, and a clamping ring matched with the annular clamping groove is arranged on the inner wall of the plate shaft hole 31; the upper end face of the supporting leg 2 is provided with a rectangular positioning block 4, a positioning block mounting hole 41 matched with the positioning block 4 is formed in the lower face of the plate 1, and the positioning block 4 is correspondingly clamped in the positioning block mounting hole 41. The positioning block mounting hole 41 is a blind hole with a rectangular structure and does not penetrate through the plate 1, so that as shown in fig. 4, the upper surface of the plate 1 is only provided with the plate shaft hole 31, and the flatness is good.

In addition, as shown in fig. 5, in this embodiment, the lower surface of the plate 1 is provided with a protruding rib 19 which is arranged along the length direction and penetrates through two ends of the plate 1, a plurality of protruding ribs 19 are arranged in parallel, a plate shaft hole 31 is arranged between two adjacent protruding ribs to maintain the integrity of the protruding ribs 19, the protruding ribs 19 are of a uniform strip-shaped structure, and 4 protruding ribs 19 are provided in this embodiment. As shown in fig. 6 and 7, a recessed rib groove 20 is provided at the intersection of the leg 2 and the rib 19, and the cross-sectional shape of the rib groove 20 matches with the rib 19.

As shown in fig. 8, the assembled structure of this embodiment is similar to the embodiment of fig. 1 except that the tie bar 5 connected to the lower surface of the leg 2 is omitted. The reason is that the upper pin shaft 21 is inserted into the plate shaft hole 31 and the rib 19 is inserted into the rib groove 20, so that the stability of the support leg 2 is good after installation, and the auxiliary support of the pull rod 5 is not needed.

Certainly, the same as the embodiment in fig. 1, the bending part of the supporting foot 2 in this embodiment is provided with a fabrication hole 23 transversely penetrating through two sides of the supporting foot body, and the fabrication hole 23 may be a circular hole or an oval hole or other holes with arc-shaped side walls.

During the use, correspond the plug-in mounting with stabilizer blade 2 and plate 1, stabilizer blade 2 is put on the ground, and the goods is stacked at the upper surface of plate 1, inserts in the gap between the below of plate 1, the stabilizer blade 2 with the fork arm in the fork truck transportation, starts fork truck and lifts up plate 1 together with stabilizer blade 2 and goods and leaves ground and can transport, after transporting the destination, reduces the height of fork arm, and it can to take out the fork arm to back a car at last until stabilizer blade 2 lands.

According to this embodiment, blow molding bending stabilizer blade tray compressive strength is big, can satisfy the requirement of commodity circulation transportation trade, and the required mould of production is small, can effectively reduction in production cost, and its structure is convenient for manufacture and materials are less, low in production cost, long service life, and local damage accessible is changed spare part and is reached the purpose of restoreing back used repeatedly.

Although specific embodiments of the present invention have been described in detail, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of protection of the invention is defined by the appended claims.

Claims

1. The blow molding bending support leg tray comprises a panel and support legs (2) arranged below the panel, and is characterized in that the panel comprises more than two plate blocks (1) which are arranged in parallel; the support legs (2) are at least two and are connected below the plate (1) in a matched mode through pin shafts and shaft holes, and the support legs (2) are in an S-shaped folded plate shape in the length direction; the plate (1) and the support legs (2) are hollow structures formed by blow molding.

2. The blow-molded bending support leg tray according to claim 1, wherein a rectangular positioning bayonet (3) is arranged on the side surface of the plate (1), a positioning block (4) matched with the positioning bayonet (3) is arranged on the upper end surface of the support leg (2), the positioning block (4) is correspondingly clamped in the positioning bayonet (3), and a pull rod (5) is connected to the lower end surface of the support leg (2) through a pin shaft and a shaft hole in a matching manner.

3. A blow-molded bending support leg tray as claimed in claim 2, wherein the upper end surface of the support leg (2) is provided with an upper pin shaft (21), the plate (1) is provided with a plate shaft hole (31) penetrating through the plate body, and the upper pin shaft (21) is correspondingly inserted into the plate shaft hole (31); the height of the upper pin shaft (21) is matched with the thickness of the plate (1), the lower end of the upper pin shaft (21) is a cylinder, the upper end of the upper pin shaft is a hemisphere, an annular clamping groove (22) is formed in the outer circumferential surface of the cylinder of the upper pin shaft (21), and a clamping ring matched with the annular clamping groove is arranged on the inner wall of the plate shaft hole (31).

4. The blow molding bending support leg tray according to claim 2, wherein a pull rod installation groove (24) is formed in the lower end face of the support leg (2), the depth of the pull rod installation groove (24) is matched with the thickness of the pull rod (5), a lower pin shaft (25) is arranged at the bottom of the pull rod installation groove (24), and the height of the lower pin shaft (25) is matched with the depth of the installation groove (24); a pull rod shaft hole (51) matched with the lower pin shaft (25) is formed in the corresponding position of the pull rod (5); the corresponding part of the pull rod (5) is arranged in the pull rod mounting groove (24), and the lower pin shaft (25) is arranged in the pull rod shaft hole (51).

5. A blow-molded bending support leg tray as claimed in claim 1, wherein an upper pin shaft (21) is provided on the upper end surface of the support leg (2), a plate shaft hole (31) penetrating through the plate body is provided on the plate (1), and the upper pin shaft (21) is correspondingly inserted into the plate shaft hole (31); the height of the upper pin shaft (21) is matched with the thickness of the plate (1), the lower end of the upper pin shaft (21) is a cylinder, the upper end of the upper pin shaft is a hemisphere, an annular clamping groove (22) is formed in the outer circumferential surface of the cylinder of the upper pin shaft (21), and a clamping ring matched with the annular clamping groove is arranged on the inner wall of the plate shaft hole (31); the upper end face of the support leg (2) is provided with a rectangular positioning block (4), a positioning block mounting hole (41) matched with the positioning block (4) is formed in the lower face of the plate (1), and the positioning block (4) is correspondingly clamped in the positioning block mounting hole (41).

6. A blow-molded bent leg tray as claimed in claim 5, wherein the lower surface of the plate (1) is provided with ribs (19) extending through both ends of the plate (1) in the longitudinal direction, and a recessed rib groove (20) is provided at the intersection of the leg (2) and the ribs (19), and the cross-sectional shape of the rib groove (20) is matched with the ribs (19).

7. A blow-molded bent leg tray according to claim 2 or 5, wherein the bent part of the leg (2) is provided with a fabrication hole (23) transversely penetrating through two sides of the leg body.