An assembled plastic pallet

Abstract

The present application relates to tray technical field, disclose a kind of assembled plastic tray, including splicing tray unit, tray unit includes tray board and the first support leg and the second support leg of the first support leg of the two sides of tray board, the first support leg is equipped with the positioning pin piece that can be inserted into corresponding second support leg, and the second support leg is equipped with the positioning assembly for positioning positioning pin piece;The upper end of first support leg and second support leg is equipped with clamping groove, recess is equipped on tray board corresponding clamping groove, clamping groove is equipped with locking assembly, the lower end of first support leg and second support leg is inserted into clamping groove, for driving locking assembly to first support leg or second support leg is locked and fixed.By the positioning pin piece in the first support leg is inserted into corresponding second support leg, and the positioning pin piece inserted is positioned using positioning assembly, to realize the splicing between adjacent tray unit, so that it can form the tray of larger load area, to improve the efficiency of goods handling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pallets, in particular to an assembled plastic pallet. BACKGROUND

[0002] In the industrial production process, goods often need to be transported to a designated location, at which time the goods are placed on a pallet, and then the pallet is transported together with the products to the designated location by a forklift. Therefore, the most important thing for a pallet is to stably carry goods while being lightweight considering the total load of the goods. Currently, the carrying area of the pallet in the prior art is generally fixed, and when facing more goods, multiple transportations are often required, increasing the labor of workers and reducing the transportation efficiency. In addition, when transporting the pallet, the pallets need to be stacked. Since there is a lack of good fixation between the pallets, the stacked pallets may be tilted and knocked during transportation, which is not easy to arrange. SUMMARY

[0003] The present application aims to provide an assembled plastic pallet to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0005] An assembled plastic pallet includes pallet units that can be spliced and stacked. The pallet unit includes a pallet plate, a first support leg is provided opposite one side of the pallet plate, a second support leg is provided opposite the other side of the pallet plate, a retractable positioning pin is provided in the first support leg, the positioning pin is used to extend into the corresponding second support leg when the pallet units are spliced, and a positioning assembly is provided in the second support leg to position the extended positioning pin.

[0006] A clamping groove is provided at the upper end of the first support leg and the second support leg, a groove is provided on the pallet plate corresponding to the clamping groove, a lock assembly is provided in the clamping groove, when the pallet units are stacked, the lower end of the first support leg and the second support leg extends through the groove and into the clamping groove, the lock assembly is driven to move downward, the lock assembly locks and fixes the first support leg or the second support leg, and a fixing member is further provided on the lock assembly, which is used to position the positioning assembly when the lock assembly locks and fixes the first support leg or the second support leg.

[0007] Further, a first installation cavity with an open end is provided in the first support leg, a plug plate is provided at the opening of the first installation cavity, the positioning pin includes a positioning slider slidingly provided in the first installation cavity, the positioning slider is provided with a positioning pin block extending out of the plug plate, and a first spring is provided in the first installation cavity to drive the positioning slider to slide and drive the positioning pin block to retract.

[0008] Further, the second supporting leg is internally provided with an insertion hole for the positioning pin block to extend into; the second supporting leg is internally provided with a second mounting cavity located above the insertion hole; the positioning assembly comprises a lifting slider which is liftably arranged in the second mounting cavity, the lifting slider is provided with a positioning rod which extends into the insertion hole, the positioning pin block is provided with a positioning hole for the positioning rod to extend into, the second mounting cavity is internally provided with a second spring for driving the lifting slider to move downwards, and the second supporting leg is further provided with a driving member for driving the lifting slider to move upwards.

[0009] Further, the lifting slider is provided with a mounting rod which extends through the corresponding second spring and into the corresponding clamping groove, the extending end of the mounting rod is provided with a fixing block, and the fixing block is internally provided with an inclined sliding groove;

[0010] The driving member comprises a sliding cavity which is arranged in the second supporting leg corresponding to the fixing block, a driving plate is slidingly arranged in the sliding cavity, one end of the driving plate is oppositely provided with a fixing plate which is located on both sides of the fixing block, a sliding rod is slidingly arranged in the sliding groove between the fixing plates, and the driving plate away from the fixing block is used to drive the sliding rod to press the side wall of the sliding groove to drive the fixing block to move upwards.

[0011] Further, the second supporting leg is internally provided with a third mounting cavity which is open at one end and located below the sliding cavity, the two sides of the sliding cavity are provided with a slot which communicates with the third mounting cavity along the moving direction of the driving plate, the driving plate is provided with a rack which extends into the third mounting cavity along the slot, and the driving member further comprises a rotating shaft which is rotatably arranged in the third mounting cavity, both ends of the rotating shaft are provided with gears which are engaged with the corresponding racks, and a traction rope is wound around the rotating shaft with one end extending out of the third mounting cavity.

[0012] Further, the locking assembly comprises a clamping plate which is liftably arranged in the corresponding clamping groove, opposite side walls of the clamping plate are oppositely provided with locking blocks, the locking blocks are internally provided with spring cavities at the upper end portions, the locking blocks are further provided with clamping grooves which communicate with the spring cavities, the spring cavities are internally provided with sliding blocks through the third springs, the sliding blocks are provided with matching blocks which extend into the clamping grooves, the matching blocks are provided with first inclined surfaces, and the sliding blocks are provided with locking columns which extend out of the locking blocks at one end;

[0013] The clamping groove is provided with a clamping block which extends into the clamping groove and slides, the clamping block is provided with a second inclined surface which cooperates with the first inclined surface, and the clamping plate moves downwards to drive the second inclined surface on the clamping block to press the first inclined surface to realize the extension of the locking column.

[0014] Further, the clamping groove is internally provided with a fourth mounting cavity in the opposite side walls, the fourth mounting cavity is internally provided with a control member for driving the clamping block to move downwards.

[0015] Further, the clamping groove is provided with a sliding groove which communicates with the corresponding fourth mounting cavity along the length direction of the locking block in the opposite side walls, the fourth mounting cavity is internally provided with a mounting sliding block which is liftable, and the clamping block is connected to the corresponding mounting sliding block through a connecting block;

[0016] The fourth installation cavity is provided with a push block in the vertical installation sliding block moving direction, the push block is provided with a locking groove for the lower end of the installation sliding block to extend into, and the side surface of the locking groove is provided with a guide inclined surface for the installation sliding block to slide in or slide out.

[0017] Further, the fourth installation cavity is provided with a fifth spring for pushing the push block to move and make the installation sliding block slide out of the locking groove, and the outer side wall of the second supporting leg is provided with a push hole corresponding to the fourth installation cavity.

[0018] Further, the opening of the third installation cavity is provided with a side plate, one end of the traction rope extends out of the side plate, and the extending end of the traction rope is provided with a pull ring abutting on the side plate.

[0019] Compared with the prior art, the beneficial effects of the present application are:

[0020] 1、The positioning pin in the first supporting leg extends into the corresponding second supporting leg, and the extending positioning pin is positioned by the positioning assembly, so that the fixing between the adjacent first supporting leg and second supporting leg is realized, thereby the splicing between the adjacent tray units is completed, and the tray with larger loading area can be formed to improve the efficiency of goods carrying.

[0021] 2、The lower end of the first supporting leg and the second supporting leg can extend into the corresponding clamping groove through the groove, so that the clamping groove can limit the first supporting leg and the second supporting leg, and the stacking is more stable and not easy to fall; at the same time, the lower end of the first supporting leg and the second supporting leg extending into the clamping groove can drive the locking assembly to lock and fix the first supporting leg or the second supporting leg stacked thereon, so as to further limit the first supporting leg and the second supporting leg, and the stacking is more stable and not easy to fall.

[0022] 3、When the spliced and assembled tray unit is stacked, the locking assembly can lock and fix the first supporting leg or the second supporting leg stacked thereon, so as to improve the stacking effect, and the downward movement of the locking assembly can drive the fixing member to position and lock the positioning assembly, at this time, the positioning assembly cannot release the positioning of the extending positioning pin, so that the positioning pin is locked reversely, thereby avoiding the instability of the stacking of the spliced and assembled tray due to the release of the splicing of the tray unit. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a stacking structure diagram of the assembled plastic tray in the present application.

[0024] Figure 2 It is a splicing and assembling structure diagram of the assembled plastic tray in the present application.

[0025] Figure 3A sectional view of the tray unit at the joint in the present application.

[0026] Figure 4 A structural view of the first supporting leg in the present application.

[0027] Figure 5 A structural view of the second supporting leg in the present application.

[0028] Figure 6 A partial structural view of the positioning assembly in the present application.

[0029] Figure 7 A sectional view of the second supporting leg in the present application.

[0030] Figure 8 A Figure 7 An enlarged view of part A in the present application.

[0031] Figure 9 A sectional structural view of the second supporting leg in the present application.

[0032] Figure 10 A structural view of the cooperation between the mounting slider and the pushing block in the present application.

[0033] The meanings of the respective reference numerals in the drawings are as follows: 100, tray unit; 101, tray plate; 102, first supporting leg; 103, second supporting leg; 211, insertion slot; 301, recess; 302, clamping slot; 311, first mounting cavity; 3111, through hole; 312, operation cavity; 320, positioning slider; 321, positioning pin block; 331, second mounting cavity; 332, sliding cavity; 333, third mounting cavity; 340, traction rope; 350, clamping plate; 351, locking block; 410, blocking plate; 421, positioning hole; 431, limiting sliding groove; 432, insertion hole; 501, insertion hole; 610, lifting slider; 611, positioning rod; 612, first inclined surface; 613, mounting rod; 620, second spring; 630, fixed block; 631, sliding groove; 640, driving plate; 641, fixed plate; 642, rack; 650, rotating shaft; 651, gear; 661, pull ring; 701, mounting hole; 702, stop ring; 711, mounting column; 712, stop block; 720, fourth spring; 811, spring cavity; 812, clamping slot; 820, third spring; 830, sliding block; 831, cooperation block; 832, locking column; 840, clamping block; 851, fourth mounting cavity; 860, mounting slider; 870, pushing block; 901, horizontal groove part; 902, vertical groove part; 911, sliding groove; 912, pushing hole; 1011, locking groove; 1012, guide inclined surface. DETAILED DESCRIPTION

[0034] To further understand the content of this invention, a detailed description of the invention will be provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0035] The following is in conjunction with the appendix Figures 1-10 This embodiment will be described in further detail.

[0036] like Figures 1-2 As shown, an assembled plastic pallet in this embodiment includes a pallet unit 100 that can be spliced ​​and stacked. The pallet unit 100 includes a pallet plate 101. A first support leg 102 is provided on one side of the pallet plate 101, and a second support leg 103 is provided on the other side of the pallet plate 101. The first support leg 102 and the second support leg 103 have the same shape. Both of them and the pallet plate 101 are made of rigid plastic. The first support leg 102 and the second support leg 103 are welded to the four corners of the lower side of the pallet plate 101 to form a pallet unit 100 for carrying goods for transportation.

[0037] By assembling pallet units 100, pallets with a larger carrying area can be formed, thereby improving the efficiency of cargo handling.

[0038] In this embodiment, the first support leg 102 is provided with a retractable positioning pin. The positioning pin is used to extend into the corresponding second support leg 103 when the pallet unit 100 is assembled. The second support leg 103 is provided with a positioning component for positioning the extended positioning pin. In actual use, the first support leg 102 and the second support leg 103 are respectively installed at the four corners of the pallet plate 101. Thus, when adjacent pallet units 100 are docked, the adjacent first support legs 102 and second support legs 103 are in contact. At this time, the positioning pin in the first support leg 102 extends into the corresponding second support leg 103, and the positioning component positions the extended positioning pin, thereby better realizing the fixation between the adjacent first support legs 102 and second support legs 103, thus completing the assembly between adjacent pallet units 100. When the positioning component releases the positioning of the extended positioning pin, the positioning pin retracts, thereby disassembling the assembly between adjacent pallet units 100.

[0039] The positioning pins are retracted by extending and retracting, so that the positioning pins located on the outside of the assembled pallet can be retracted into the first support foot 102, thus preventing the positioning pins from extending and affecting the use of the assembled pallet.

[0040] like Figure 3As shown, in the embodiment, the upper end of the first support leg 102 and the second support leg 103 is provided with a clamping groove 302 in communication, and the tray plate 101 is provided with a groove 301 corresponding to the clamping groove 302, and the clamping groove 302 is provided with a lock assembly that can be lifted, when the tray unit 100 is stacked, the lower end of the first support leg 102 and the second support leg 103 penetrates the groove 301 and extends into the clamping groove 302, for driving the lock assembly to move down, realizing the lock assembly to lock and fix the first support leg 102 or the second support leg 103, and the lock assembly is further provided with a fixing member, which is used to position the positioning assembly when the lock assembly locks and fixes the first support leg 102 or the second support leg 103.

[0041] In the embodiment, the outer side wall of the lower end of the first support leg 102 and the second support leg 103 is concave to form a plug-in groove 211, which can make the lower end of the first support leg 102 and the second support leg 103 penetrate the groove 301 and extend into the corresponding clamping groove 302 when the tray unit 100 is stacked, thereby limiting the first support leg 102 and the second support leg 103, making the stacking more stable and not easy to fall over;

[0042] The lower end of the first support leg 102 and the second support leg 103 extends into the clamping groove 302, which can drive the lock assembly to move down, so that the lock assembly can lock and fix the first support leg 102 or the second support leg 103 stacked thereon, thereby further fixing the first support leg 102 and the second support leg 103, and making the stacking effect of the tray unit 100 better and not easy to fall over;

[0043] When the adjacent tray units 100 are assembled, the tray after assembly is stacked, the lock assembly can lock and fix the first support leg 102 or the second support leg 103 stacked thereon, to improve the stacking effect, and the lock assembly moving down can drive the fixing member to position and lock the positioning assembly, at this time, the positioning assembly cannot release the positioning of the positioning pin, so that the positioning pin is locked, thereby avoiding the instability of the stacked tray caused by the disassembly of the tray unit 100 after assembly.

[0044] As shown, Figure 4 In the embodiment, the first support leg 102 is provided with a first installation cavity 311 with one end open, the opening of the first installation cavity 311 is provided with a plug plate 410, the positioning pin includes a positioning sliding block 320 slidingly arranged in the first installation cavity 311, the positioning sliding block 320 is provided with a positioning pin block 321 extending through the plug plate 410, and the first installation cavity 311 is provided with a first spring (not shown in the figure) for driving the positioning sliding block 320 to slide and drive the positioning pin block 321 to retract.

[0045] In the embodiment, the blocking plate 410 is mounted at the opening of the first mounting cavity 311 by screws, one end of the first spring abuts against the blocking plate 410, and the other end abuts against the positioning sliding block 320, thereby achieving the installation of the first spring in the first mounting cavity 311 and enabling the positioning pin block 321 to be automatically retracted into the first mounting cavity 311;

[0046] In actual use, the outer side wall of the first supporting leg 102 is provided with a through hole 3111 communicating with the first mounting cavity 311, the operator inserts the ejector rod into the first mounting cavity 311 through the through hole 3111, and the ejector rod abuts against and pushes the positioning sliding block 320, so that the positioning pin block 321 can be extended out of the first supporting leg 102.

[0047] In combination with Figure 5 and Figure 6 It is shown that, in the embodiment, the second supporting leg 103 is provided with an insertion hole 501 for the positioning pin block 321 to extend into; the second supporting leg 103 is provided with a second mounting cavity 331 located above the insertion hole 501; the positioning assembly comprises a lifting sliding block 610 which is liftable arranged in the second mounting cavity 331, the lifting sliding block 610 is provided with a positioning rod 611 extending into the insertion hole 501, the positioning pin block 321 is provided with a positioning hole 421 for the positioning rod 611 to extend into, the second mounting cavity 331 is provided with a second spring 620 for driving the lifting sliding block 610 to move downward, and the second supporting leg 103 is further provided with a driving member for driving the lifting sliding block 610 to move upward.

[0048] In the embodiment, after the tray unit 100 is docked, the operator extends the positioning pin block 321 out of the first supporting leg 102 by the ejector rod, and then extends into the insertion hole 501, at this time, the positioning rod 611 extends into the corresponding positioning hole 421, so that the positioning assembly can position the positioning pin block 321 extending into the insertion hole 501;

[0049] The second spring 620 is arranged to push the lifting slider 610 to move downwards in the second mounting cavity 331, drive the positioning rod 611 to extend into the insertion hole 501, and then keep the positioning rod 611 inserted into the positioning hole 421 to fix the positioning pin block 321. In actual use, the lower end of the positioning rod 611 is provided with a first inclined surface 612, and the extending end of the positioning pin block 321 is provided with a second inclined surface matched with the first inclined surface 612. Thus, when the positioning pin block 321 extends into the insertion hole 501, the second inclined surface presses the first inclined surface 612 to automatically retract the positioning rod 611 into the second mounting cavity 331, and then the positioning pin block 321 can extend into the insertion hole 501. When the positioning hole 421 corresponds to the positioning rod 611, the second spring 620 can automatically push the positioning pin block 321 to extend into the positioning hole 421, so that the positioning pin block 321 is automatically positioned, and the positioning assembly is used.

[0050] The driving member is arranged to drive the positioning rod 611 to retract into the second mounting cavity 331, and then release the fixation of the positioning pin block 321, so that the first support leg 102 and the second support leg 103 assembled together can be disassembled.

[0051] In the embodiment, the lifting slider 610 is provided with a mounting rod 613 extending through the corresponding second spring 620 into the corresponding clamping groove 302, and the extending end of the mounting rod 613 is provided with a fixing block 630. The fixing block 630 is provided with an inclined sliding groove 631.

[0052] The driving member includes a sliding cavity 332 corresponding to the fixing block 630 and arranged in the second support leg 103. The sliding cavity 332 is slidably provided with a driving plate 640. One end of the driving plate 640 is oppositely provided with a fixing plate 641 located on both sides of the fixing block 630. The fixing plates 641 are provided with a sliding rod located in the sliding groove 631. The driving plate 640 away from the fixing block 630 is used to drive the sliding rod to press the side wall of the sliding groove 631 to drive the fixing block 630 to move upwards.

[0053] According to the structure of the embodiment, the mounting rod 613 extends through the second spring 620, so that the second spring 620 is mounted in the second mounting cavity 331.

[0054] The second spring 620 drives the lifting sliding block 610 to move downward in the natural state, the fixed block 630 moves downward to drive the driving plate 640 to move in the sliding cavity 332 to the fixed block 630, and the sliding rod slides to the upper end of the sliding groove 631.

[0055] In the embodiment, the second supporting leg 103 is provided with a third installation cavity 333 which is open at one end and located below the sliding cavity 332. The two sides of the sliding cavity 332 are provided with notches which communicate with the third installation cavity 333 along the moving direction of the driving plate 640. The driving plate 640 is provided with a rack 642 which extends into the third installation cavity 333 along the notches. The driving member further comprises a rotating shaft 650 which is rotatably arranged in the third installation cavity 333. The rotating shaft 650 is provided with a gear 651 which engages with the corresponding rack 642 at the two ends. The rotating shaft 650 is provided with a traction rope 340 which extends out of the third installation cavity 333.

[0056] In actual use, the third installation cavity 333 is provided with a detachable side plate (not shown in the figure) at the opening through a screw. The side plate is provided with a hole through which one end of the traction rope 340 extends. The extending end of the traction rope 340 is provided with a pull ring 661. In actual use, the second spring 620 drives the driving plate 640 to move and drive the rack 642 to move, thereby driving the gear 651 to rotate the rotating shaft 650, i.e. winding the traction rope 340 on the rotating shaft 650, so that the pull ring 661 abuts against the side plate. At this time, the operator pulls the pull ring 661 to extend the traction rope 340, drives the rotating shaft 650 to rotate, drives the gear 651 to rotate, drives the rack 642 to drive the driving plate 640 to move away from the fixed block 630, and realizes the retraction of the positioning rod 611. The operation is simple and convenient.

[0057] In combination with Figures 7-8 As shown in the figure, the locking assembly in the embodiment comprises a clamping plate 350 which is arranged in the corresponding clamping groove 302 in a lifting manner. The opposite two side walls of the clamping plate 350 are oppositely provided with locking blocks 351. The locking block 351 is provided with a spring cavity 811 at the upper end. The locking block 351 is further provided with a clamping groove 812 which communicates with the spring cavity 811. The spring cavity 811 is provided with a sliding block 830 through a third spring 820. The sliding block 830 is provided with a matching block 831 which extends into the clamping groove 812. The matching block 831 is provided with a first inclined surface. The sliding block 830 is provided with a locking column 832 which extends out of the locking block 351 at one end.

[0058] The opposite side wall of the clamping groove 302 is provided with a clamping block 840 sliding into the clamping groove 812, the clamping block 840 is provided with a second inclined surface matched with the first inclined surface, and the clamping plate 350 is lowered to drive the second inclined surface on the clamping block 840 to press the first inclined surface 612 to realize the extension of the locking column 832.

[0059] In actual use, the bottom wall of the clamping groove 302 is provided with a mounting hole 701, the upper end of the mounting hole 701 is provided with a stop ring 702, the lower surface of the clamping plate 350 is provided with a mounting column 711 extending into the mounting hole 701, the lower end of the mounting column 711 is provided with a stop block 712 matched with the stop ring 702, and the mounting column 711 is further provided with a fourth spring 720 for pushing the clamping plate 350 upwards, which preferably realizes the lifting installation of the clamping plate 350 in the corresponding clamping groove 302.

[0060] In order to facilitate the installation of the stop block 712 on the mounting column 711, an operation cavity 312 is arranged in the first supporting leg 102 and is open at one end and communicates with the mounting hole 701, and the mounting hole 701 in the second supporting leg 103 communicates with the third mounting cavity 333.

[0061] The fixing member includes a locking hole arranged on the driving plate 640, and the locking hole corresponds to the corresponding mounting hole 701, so that the lower end of the first supporting leg 102 and the second supporting leg 103 extends into the clamping groove 302, the clamping plate 350 is driven to move downwards, the mounting column 711 moves downwards, the stop block 712 extends into the corresponding locking hole, and the driving plate 640 is fixed, at this time, the driving plate 640 cannot be moved by the pulling rope 340, and the anti-locking of the positioning assembly is preferably realized.

[0062] In actual use, in order to preferably make the lower end of the first supporting leg 102 and the second supporting leg 103 extend into the clamping groove 302 to drive the clamping plate 350 to move downwards, the side wall of the insertion groove 211 is provided with a limiting sliding groove 431 for sliding the corresponding locking block 351, and the side wall of the limiting sliding groove 431 is provided with an insertion hole 432.

[0063] Through the structure in the embodiment, in the initial state, the third spring 820 drives the sliding block 830 to drive the locking column 832 to retract into the spring cavity 811, when the lower end of the first supporting leg 102 and the second supporting leg 103 extends into the clamping groove 302 and drives the clamping plate 350 to move downwards, the locking block 351 can be driven to move downwards, and then the clamping block 840 and the matching block 831 are pressed, the locking column 832 is driven to extend, and the first supporting leg 102 or the second supporting leg 103 is clamped and fixed.

[0064] In this embodiment, in order to make the locking column 832 disengage from the corresponding jack 432, the locking assembly is released from fixing the first supporting leg 102 or the second supporting leg 103, the fourth installation cavity 851 is arranged in the opposite side wall of the clamping groove 302, the control member for driving the clamping block 840 to move downward is arranged in the fourth installation cavity 851, the clamping block 840 is driven to move downward by the control member, the clamping block 840 is disengaged from the cooperating block 831, and then the locking column 832 is automatically retracted under the action of the third spring 820, so as to release the fixing of the first supporting leg 102 or the second supporting leg 103.

[0065] In combination with Figure 9 and Figure 10 It is shown that, in this embodiment, the sliding groove 911 communicating with the corresponding fourth installation cavity 851 is arranged on the opposite side wall of the clamping groove 302 along the length direction of the locking block 351, the installation sliding block 860 that can be lifted is arranged in the fourth installation cavity 851, and the clamping block 840 is connected to the corresponding installation sliding block 860 through the connecting block;

[0066] The push block 870 is arranged in the fourth installation cavity 851 along the vertical direction of the installation sliding block 860, the locking groove 1011 for the lower end of the installation sliding block 860 to extend into is arranged on the push block 870, and the guide inclined surface 1012 for the installation sliding block 860 to slide in or slide out is arranged on the side surface of the locking groove 1011.

[0067] In this embodiment, the fifth spring (not shown in the figure) for pushing the push block 870 to move and making the installation sliding block 860 slide out of the locking groove 1011 is arranged in the fourth installation cavity 851, and the push hole 912 corresponding to the fourth installation cavity 851 is arranged on the outer side wall of the second supporting leg 103.

[0068] In actual use, the fourth installation cavity 851 includes the horizontal groove part 901 and the vertical groove part 902 intersecting with each other, the sliding groove 911 is arranged to communicate with the vertical groove part 902, the installation sliding block 860 is slidingly installed in the vertical groove part 902, and the push block 870 is slidingly installed in the horizontal groove part 901, so that the installation sliding block 860 abuts against the upper side wall of the push block 870 and the position of the clamping block 840 is fixed, when the push block 870 moves and makes the installation sliding block 860 slide into the locking groove 1011 along the guide inclined surface 1012, the installation sliding block 860 drives the clamping block 840 to move downward, the locking column 832 is automatically retracted, and the fixing of the first supporting leg 102 or the second supporting leg 103 is released;

[0069] The fifth spring is arranged in the horizontal groove part 901, which can move the push block 870 to move, make the installation sliding block 860 slide out of the locking groove 1011 along the guide inclined surface 1012, and then fix the position of the clamping block 840, so as to facilitate the cooperation between the clamping plate 350 and the cooperating block 831 to realize the extension of the locking column 832 when the clamping plate 350 moves downward;

[0070] The push hole 912 is arranged so that in actual use, the operator pushes the push block 870 to move by extending the top rod into the push hole 912, and the installation sliding block 860 is slid into the locking groove 1011 along the guide slope 1012, so that the automatic retraction of the locking column 832 is realized, which is simple and convenient to operate and beneficial to use.

[0071] In summary, the above only describes the preferred embodiments of the present application, and any equivalent changes and modifications made according to the scope of the patent application of the present application shall be within the scope of the present application.

Claims

1. An assemblable plastic pallet, comprising pallet units (100) that can be spliced ​​and stacked, characterized in that: The pallet unit (100) includes a pallet plate (101), a first support leg (102) is provided on one side of the pallet plate (101), and a second support leg (103) is provided on the other side of the pallet plate (101). The first support leg (102) is provided with a retractable positioning pin. The positioning pin is used to extend into the corresponding second support leg (103) when the pallet unit (100) is spliced. The second support leg (103) is provided with a positioning component for positioning the extended positioning pin. The upper ends of the first support leg (102) and the second support leg (103) are provided with a connecting snap-fit ​​groove (302). The tray plate (101) is provided with a groove (301) corresponding to the snap-fit ​​groove (302). The snap-fit ​​groove (302) is provided with a liftable locking component. When the tray units (100) are stacked, the lower ends of the first support leg (102) and the second support leg (103) extend into the snap-fit ​​groove (302) through the groove (301) to drive the locking component to move down, so that the locking component locks the first support leg (102) or the second support leg (103). The fixing and locking assembly is also provided with a fixing member, which is used to position the positioning assembly when the locking assembly locks and fixes the first support foot (102) or the second support foot (103); the first support foot (102) is provided with a first mounting cavity (311) with one end open, and a blocking plate (410) is provided at the opening of the first mounting cavity (311); the positioning pin includes a positioning slider (320) slidably disposed in the first mounting cavity (311), and a positioning pin block (321) extending through the blocking plate (410) is provided on the positioning slider (320); the first mounting cavity (311) is provided with a positioning pin block (321) extending through the blocking plate (410); the first mounting cavity (311) is provided with a positioning pin block (321) extending through the blocking plate (410); the first mounting cavity (311) is provided with a positioning pin block (321) extending through the blocking plate (410). 1) A first spring is provided inside for driving the positioning slider (320) to slide and retract the positioning pin (321); the second support foot (103) is provided with an insertion hole (501) for the positioning pin (321) to extend into; the second support foot (103) is provided with a second mounting cavity (331) located above the insertion hole (501); the positioning assembly includes a lifting slider (610) that can be lifted and lowered in the second mounting cavity (331), the lifting slider (610) is provided with a positioning rod (611) extending into the insertion hole (501), and the positioning pin (321) is provided with a positioning rod (611) extending into the insertion hole (501). There is a positioning hole (421) for inserting the positioning rod (611), and a second spring (620) for driving the lifting slider (610) to move down is provided in the second mounting cavity (331). A driving member for driving the lifting slider (610) to move up is also provided in the second support foot (103). The lifting slider (610) is provided with a mounting rod (613) that passes through the corresponding second spring (620) and extends into the corresponding snap-fit ​​groove (302). A fixing block (630) is provided between the protruding ends of the mounting rod (613), and an inclined sliding groove (631) is provided in the fixing block (630). The driving component includes a sliding cavity (332) corresponding to the fixed block (630) located in the second support foot (103). A driving plate (640) is slidably disposed in the sliding cavity (332). One end of the driving plate (640) is provided with fixed plates (641) located on both sides of the fixed block (630). A sliding rod is provided between the fixed plates (641) and slides in the sliding groove (631). The driving plate (640) is away from the fixed block (630) to drive the sliding rod to press against the side wall of the sliding groove (631) and drive the fixed block (630) to move upward; locking The component includes a snap-fit ​​plate (350) that is vertically mounted in a corresponding snap-fit ​​groove (302); a mounting post (711) is provided on the lower plate surface of the snap-fit ​​plate (350), and a stop block (712) is provided at the lower end of the mounting post (711); the fastener includes a locking hole provided on the drive plate (640), the lower ends of the first support leg (102) and the second support leg (103) extend into the snap-fit ​​groove (302), the drive snap-fit ​​plate (350) moves down, causing the mounting post (711) to move down, and driving the stop block (712) to extend into the corresponding locking hole.

2. The assembled plastic pallet according to claim 1, characterized in that: The second support foot (103) has a third mounting cavity (333) with one end open and located below the sliding cavity (332). The sliding cavity (332) has slots on both sides along the moving direction of the drive plate (640) that connect to the third mounting cavity (333). The drive plate (640) has a rack (642) extending into the third mounting cavity (333) along the slot. The drive component also includes a rotating shaft (650) rotatably disposed in the third mounting cavity (333). The two ends of the rotating shaft (650) are provided with gears (651) that mesh with the corresponding racks (642). A traction rope (340) with one end extending out of the third mounting cavity (333) is wound around the rotating shaft (650).

3. The assembled plastic pallet according to claim 2, characterized in that: Locking blocks (351) are provided on opposite side walls of the snap-fit ​​plate (350). A spring cavity (811) is provided inside the locking block (351) and at its upper end. A slot (812) communicating with the spring cavity (811) is also provided inside the locking block (351). A sliding block (830) is provided inside the spring cavity (811) via a third spring (820). A mating block (831) extending into the slot (812) is provided on the sliding block (830). A first inclined surface is provided on the mating block (831). A locking pin (832) with one end extending out of the locking block (351) is provided on the sliding block (830). The side wall opposite the snap-fit ​​groove (302) is provided with a snap-fit ​​block (840) that extends into the snap-fit ​​groove (812) and slides. The snap-fit ​​block (840) is provided with a second inclined surface that cooperates with the first inclined surface. The snap-fit ​​plate (350) moves down to drive the second inclined surface on the snap-fit ​​block (840) to press the first inclined surface to realize the extension of the locking pin (832).

4. The assembled plastic pallet according to claim 3, characterized in that: A fourth mounting cavity (851) is provided in the side wall opposite to the snap-fit ​​groove (302), and a control element for driving the snap-fit ​​block (840) to move down is provided in the fourth mounting cavity (851).

5. An assembled plastic pallet according to claim 4, characterized in that: The locking block (351) has a sliding groove (911) on the side wall opposite to the locking groove (302) along the length direction of the locking block (351) that connects to the corresponding fourth mounting cavity (851). The fourth mounting cavity (851) is provided with a liftable mounting slider (860). The locking block (840) is connected to the corresponding mounting slider (860) through a connecting block. A push block (870) is provided in the fourth mounting cavity (851) along the moving direction of the vertical mounting slider (860). The push block (870) is provided with a locking groove (1011) for the lower end of the mounting slider (860) to extend into. The side of the locking groove (1011) is provided with a guide slope (1012) for the mounting slider (860) to slide in or out.

6. An assembled plastic pallet according to claim 5, characterized in that: The fourth mounting cavity (851) is provided with a fifth spring for pushing the push block (870) to move so that the mounting slider (860) slides out of the locking groove (1011). The outer wall of the second support foot (103) is provided with a push hole (912) corresponding to the fourth mounting cavity (851).

7. The assembled plastic pallet according to claim 1, characterized in that: The opening of the third mounting cavity (333) is provided with a side plate, and one end of the traction rope (340) extends out of the side plate. The extended end of the traction rope (340) is provided with a pull ring (661) that abuts against the side plate.

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