Expandable and retractable logistics transfer box bearing equipment

Abstract

The utility model relates to expandable and contractible logistics transfer box bearing equipment which comprises a base and a fixing bracket, the base is horizontally arranged, the fixing bracket is horizontally located above the base, and the top face of the base is fixedly connected with the middle of the bottom face of the fixing bracket through a supporting seat; extending bearing assemblies are arranged on the two sides of the fixing bracket in an outward horizontal extending mode. The utility model has the beneficial effects that the extension bearing components can be detachably combined on the two sides of the fixed bracket in a manner that the insertion plates are in transverse sliding fit with the adjusting grooves and the limiting rods are in vertical sliding fit with the limiting holes, and the fixed combination manner of the extension bearing components on the outer side of the fixed bracket is simple and easy to operate; in this way, by arranging the extending bearing assemblies, the bearing width of the two sides of the fixing bracket can be expanded, then the effect of expanding and increasing the bearing area of the bottom face of the logistics transfer box is achieved, and the stability when the logistics transfer box is borne is improved.

Description

Technical Field

[0001] The utility model relates to the field of logistics transfer auxiliary components, in particular to an expandable and contractible logistics transfer box bearing device. Background Art

[0002] The important role of logistics in regional economic development is becoming increasingly recognized by people. Many regions have included the development of modern logistics in their important agenda. Logistics modernization and economic development are closely related. Logistics transfer boxes are needed to store and circulate goods during the transportation of goods.

[0003] Specifically, when a logistics transfer box is transported in and out of a warehouse, it is necessary to place the logistics transfer box on a carrying device to avoid contact with the ground and to facilitate the staff to pick it up. However, when the current carrying equipment is specifically designed, the area of ​​the platform support used to carry the logistics transfer box is usually fixed, resulting in the specifications of the largest logistics transfer box that can be placed being fixed and cannot be changed. However, the specifications and sizes of the logistics transfer boxes are not the same, resulting in poor versatility in the use of the carrying equipment. Therefore, there will be certain inconveniences in the specific use process. When a logistics transfer box that obviously exceeds the surface area of ​​the platform support is placed on it, it will be placed unstable, resulting in the risk of the logistics transfer box falling and being damaged during the carrying process. Utility Model Content

[0004] The purpose of the utility model is to provide an expandable and retractable logistics transfer box carrying device in order to solve the above-mentioned problem. The extended carrying component can be detachably combined on both sides of the fixed bracket by means of the lateral sliding cooperation between the plug plate and the adjustment groove and the vertical sliding cooperation between the limit rod and the limit hole. The fixed combination method of the extended carrying component on the outside of the fixed bracket is simple and easy to operate. The supporting width on both sides of the fixed bracket can be expanded by the setting of the extended carrying component, as described below for details.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides an expandable and retractable logistics transfer box bearing device, comprising a base and a fixed bracket, wherein the base is horizontally arranged, the fixed bracket is horizontally located above the base, and the top surface of the base is fixedly connected to the middle part of the bottom surface of the fixed bracket through a support seat;

[0007] Extended bearing components are horizontally extended outward on both sides of the fixed bracket, and sliding adjustment components are installed on both sides of the bottom surface of the fixed bracket. The extended bearing components are fixedly connected to the parts of the sliding adjustment components on the corresponding sides that extend beyond the outside of the fixed bracket, so as to drive the extended bearing components to expand outward and contract inward through the sliding adjustment components.

[0008] Preferably, the extended bearing components all include extended brackets, the extended brackets on both sides are respectively located on the corresponding sides of the fixed bracket and extend horizontally outward in the lateral direction, and the bottom surfaces of the extended brackets are fixedly connected to the portion of the sliding adjustment component on the corresponding side that extends beyond the outside of the fixed bracket.

[0009] Preferably, a plurality of transverse guide grooves are provided on the top surface of the fixed bracket, and both ends of the guide grooves are open, and both sides of each guide groove are slidably fitted with guide brackets in the transverse direction, and the outer ends of the guide brackets at both sides that are away from each other are fixed on the side end surfaces corresponding to the extension brackets.

[0010] Preferably, the guide grooves are all dovetail grooves or I-shaped grooves, and a plurality of the guide grooves are evenly distributed in the longitudinal direction, the end faces of the two guide brackets of the same guide groove are in contact with each other, and the top surfaces of the guide brackets are flush with the top surface of the fixed bracket.

[0011] Preferably, the inner end faces of the extension bracket are in close contact with the corresponding outer end faces of the fixed bracket, and the longitudinal width and vertical thickness of the extension bracket are consistent with those of the fixed bracket.

[0012] Preferably, baffles are fixed to the outer edges of the top surfaces of the extension brackets at both sides via connecting plates extending vertically in the longitudinal direction.

[0013] Preferably, the sliding adjustment components include a fixing sleeve and an insert plate, the fixing sleeves are fixed laterally on both sides of the bottom surface of the fixed bracket, and the fixing sleeves extend beyond the outside of the fixed bracket, the fixing sleeves are provided with adjustment grooves in the laterally direction, and the adjustment grooves are slidably fitted with the insert plates in the laterally direction, the parts of the insert plates extending out of the outer ends of the adjustment grooves corresponding to the adjusting grooves are vertically fixed with mounting seats, and the mounting seats are fixed to the bottom surfaces of the extended brackets on the corresponding sides.

[0014] Preferably, the plug plates at both side positions are vertically provided with a plurality of limit holes, and the plurality of limit holes are located in the same horizontal direction, the bottom surfaces of the fixing sleeves at both side positions are vertically provided with mounting holes at end positions away from each other, the mounting holes are vertically connected with the corresponding adjustment slots and are vertically coaxially aligned with one of the limit holes of the corresponding plug plates, the mounting holes are vertically coaxially slidably matched with the limit rods, and the top ends of the limit rods are vertically slidably matched with the corresponding limit holes, the bottom ends of the limit rods extending out of the bottom surface of the fixing sleeve are coaxially fixed with handles, the portion of the limit rods located between the corresponding handles and the bottom surface of the fixing sleeve are coaxially gap-matched with springs, and the two ends of the springs are respectively fixedly connected to the corresponding handles and the bottom surface of the fixing sleeve.

[0015] Preferably, the bottom surface of the extended bracket contacts the top surface of the corresponding fixed sleeve but the two are not fixedly connected, the cross-sectional shape of the adjustment groove along the longitudinal vertical plane is rectangular, and the length of the plug plate and the adjustment groove is not greater than the length of the guide bracket at the corresponding side position; when the inner end surface of the extended bracket is in contact with the corresponding outer end surface of the fixed bracket, the limit rod is vertically slidably matched with the limit hole at the outermost end of the plug plate; the bottom surface of the mounting seat is provided with a handle for easy holding.

[0016] Preferably, pads are fixed longitudinally on both sides of the bottom surface of the base, and the pads are provided with passages longitudinally for smooth passage of forklift forks.

[0017] When the above-mentioned expandable and retractable logistics transfer box carrying device is used, specifically when the logistics transfer box is used for carrying, because at the beginning, the plug plates at the two side positions are laterally slidably matched with the adjusting grooves, and at the same time, the limit rods are vertically slidably matched with the limit holes, then at this time, the extension carrying assembly can be detachably combined with the two sides of the fixed bracket by means of the laterally slidable match between the plug plates and the adjusting grooves and the vertically slidably matched between the limit rods and the limit holes. The fixed combination mode of the extension carrying assembly on the outside of the fixed bracket is simple and easy to operate. Thus, the supporting width of the two side positions of the fixed bracket can be expanded by the setting of the extension carrying assembly, thereby achieving the expansion and increase of the supporting area of ​​the bottom surface of the logistics transfer box. The effect is beneficial to improving the stability of the logistics transfer box when carrying the load. At the same time, during use, when the inner end face of the extended bracket is in contact with the outer end face corresponding to the fixed bracket, the limit rod is vertically slidably matched with the limit hole at the outermost end of the plug plate, and the plug plates at both sides are provided with a plurality of limit holes. After the handle is pulled down by hand and the top end of the limit rod is pulled out of the limit hole by the stretching of the spring, the plug plate can slide laterally along the adjustment groove and the limit rod can be vertically slidably matched with the limit holes at different positions respectively, so that the extended load-bearing component can be expanded outwardly and contracted inwardly during the subsequent return, which is convenient for adjusting the load to be carried according to the load to be carried. The supporting width of the extended bearing components at both sides is adjusted to a suitable range according to the size of the logistics transfer box, thereby improving the general use range of the extended bearing components in the process of carrying the logistics transfer box. Specifically, during adjustment, the handle can be held to drive the plug plate to slide laterally along the adjustment groove. During this process, the plug plate drives the extended bracket to slide laterally through the mounting seat at the end to expand outward or contract inward. At the same time, during the process of outward expansion adjustment and inward contraction adjustment, the adjustment process of the extended bracket can be guided by the guide bracket sliding laterally along the guide groove. At the same time, the connection between the extended bracket and the fixed bracket can be enhanced through the provision of the guide bracket. , and the arrangement of the guide bracket can also carry out load support for the placed logistics transfer box in the gap position between the extension bracket and the fixed bracket, which is beneficial to ensure the stability of the extended load-bearing component when the expansion and contraction adjustment is completed. After the expansion and contraction adjustment is completed, the extended load-bearing component can be used to place the logistics turnover box on the load-bearing surface formed by the fixed bracket and the top surface of the extension bracket. When the extended load-bearing component is used up or idle, it only needs to pull down the limit rod to disengage from the limit hole, and then the extension load-bearing component can be detached and removed from the outer side of the fixed bracket by sliding the plug plate from the outer end along the adjustment groove. It should be noted that after the plug plate slides off the outer end of the adjustment groove,The extension bracket should be pulled outward laterally to make the guide bracket completely slip off the outer end of the guide groove, and then the extension bearing assembly can be smoothly detached from the side of the fixed bracket. The detachment method of the extension bearing assembly outside the fixed bracket is simple and easy to operate, which makes it easy to detach the extension bearing assembly for regular maintenance later, and is also conducive to improving the flexibility of the use of the extension bearing assembly.

[0018] The beneficial effects are as follows: 1. The utility model can detachably combine the extended bearing components on both sides of the fixed bracket by means of the horizontal sliding cooperation between the plug plate and the adjustment groove and the vertical sliding cooperation between the limit rod and the limit hole. The fixed combination of the extended bearing components on the outside of the fixed bracket is simple and easy to operate. Thus, the supporting width of the positions on both sides of the fixed bracket can be extended by setting the extended bearing components, thereby achieving the effect of expanding and increasing the supporting area of ​​the bottom surface of the logistics transfer box, which is conducive to improving the stability of the logistics transfer box when carrying the load;

[0019] 2. If there are multiple limiting holes on the plug plate, the extended load-bearing assembly can be adjusted to expand outward and contract inward by sliding the plug plate horizontally along the adjustment groove and by the limiting rods respectively sliding vertically with the limiting holes at different positions, so that the supporting width of the extended load-bearing assembly at both sides can be adjusted to a suitable range according to the size of the logistics transfer box to be carried, thereby improving the general use range of the extended load-bearing assembly in the process of carrying the logistics transfer box;

[0020] 3. During the process of outward expansion adjustment and inward contraction adjustment of the extended bearing assembly, the adjustment process of the extended bearing assembly can be guided by the guide bracket sliding laterally along the guide groove. At the same time, the connection between the extended bearing assembly and the fixed bearing assembly can be enhanced by the setting of the guide bracket. The setting of the guide bracket can also support the logistics transfer box at the gap between the extended bearing assembly and the fixed bearing assembly, which is conducive to ensuring the stability of the extended bearing assembly when the expansion and contraction adjustment is completed;

[0021] 4. Simply pull down the limit rod to get out of the limit hole, and then the extended bearing assembly can be detached from the outside of the fixed bracket by sliding the plug plate along the adjustment groove from the outer end. The disassembly method of the extended bearing assembly on the outside of the fixed bracket is simple and easy to operate, which makes it easy to disassemble the extended bearing assembly for regular maintenance in the later stage, and is also conducive to improving the flexibility of the use of the extended bearing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is the overall axonometric diagram of the utility model. Figure 1 ;

[0024] Figure 2 This is the overall axonometric diagram of the utility model. Figure 2 ;

[0025] Figure 3 This utility model Figure 1 Cross-section diagram of Figure 1 ;

[0026] Figure 4 This utility model Figure 3 A local enlarged view of point A;

[0027] Figure 5 This utility model Figure 1 Cross-section diagram of Figure 2 ;

[0028] Figure 6 This utility model Figure 5 A partial enlarged view of point B;

[0029] Figure 7 This utility model Figure 1 Cross-section diagram of Figure 3 ;

[0030] Figure 8 This utility model Figure 7 A partial enlarged view of point C;

[0031] Fig. 9 This utility model Figure 1 The front view of the external image;

[0032] Fig.10 This utility model Figure 1 The left external view of

[0033] Fig.11 This utility model Figure 1 The right external view of

[0034] Fig.12 This utility model Figure 1 A top view of the exterior;

[0035] Fig.13 This utility model Figure 1 External view from above.

[0036] The following are the descriptions of the reference numerals:

[0037] 1. Fixed bracket; 2. Extended bearing assembly; 201. Guide bracket; 202. Guide groove; 203. Extended bracket; 204. Baffle; 205. Connecting plate; 3. Base; 301. Pad; 302. Passageway; 4. Sliding adjustment assembly; 401. Fixed sleeve; 402. Adjustment groove; 403. Insert plate; 404. Mounting seat; 405. Handle; 406. Spring; 407. Handle; 408. Limit hole; 409. Mounting hole; 4010. Limit rod; 5. Support seat. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0039] See also Figure 1-Figure 13 As shown, the utility model provides an expandable and contractible logistics transfer box carrying device, including a base 3 and a fixed bracket 1. The base 3 is horizontally arranged, and the fixed bracket 1 is horizontally located above the base 3. The top surface of the base 3 is fixedly connected to the middle of the bottom surface of the fixed bracket 1 through a support seat 5. Preferably, the base 3 and the fixed bracket 1 are both rectangular seats, and the support seat 5 is a cylindrical seat with both ends respectively fixed to the middle of the top surface of the base 3 and the middle of the bottom surface of the fixed bracket 1. At the same time, preferably, the support seat 5 can raise the fixed bracket 1 to a level where the bottom end of the handle 407 of the sliding adjustment assembly 4 is higher than the bottom surface of the base 3. Extended bearing components 2 are provided on both sides of the fixed bracket 1 to extend horizontally outward. Specifically, the extended bearing components 2 include extended brackets 203. The extended brackets 203 on both sides are respectively located on the corresponding sides of the fixed bracket 1 and extend horizontally outward in the lateral direction. The bottom surfaces of the extended brackets 203 are fixedly connected to the portions of the corresponding side sliding adjustment components 4 that extend beyond the outside of the fixed bracket 1. Such an arrangement facilitates the expansion of the supporting width on both sides of the fixed bracket 1 by extending the extended brackets 203 on both sides of the fixed bracket 1, thereby achieving the effect of expanding and increasing the supporting area of ​​the bottom surface of the logistics transfer box.

[0040] See also Figure 1-Figure 8As shown, sliding adjustment components 4 are installed on both sides of the bottom surface of the fixed bracket 1, and the extended bearing components 2 are fixedly connected to the corresponding side sliding adjustment components 4 that exceed the outside of the fixed bracket 1, so as to drive the extended bearing components 2 to expand outward and contract inward through the sliding adjustment components 4. Specifically, the sliding adjustment components 4 include a fixed sleeve 401 and an insert plate 403. Fixed sleeves 401 are fixed on both sides of the bottom surface of the fixed bracket 1 in the horizontal direction, and the fixed sleeves 401 extend beyond the outside of the fixed bracket 1. The fixed sleeves 401 are opened with adjustment grooves 402 in the horizontal direction, and the adjustment grooves 402 are slidably matched with insert plates 403 in the horizontal direction, and the insert plates 403 extend out of the outer ends of the corresponding adjustment grooves 402. The parts are vertically fixed with mounting seats 404, and the mounting seats 404 are fixed to the bottom surfaces of the extended brackets 203 on the corresponding sides, the plug plates 403 on both sides are vertically provided with multiple limiting holes 408, and the multiple limiting holes 408 are located in the same horizontal direction, the bottom surfaces of the fixing sleeves 401 on both sides are vertically provided with mounting holes 409 at end positions away from each other, the mounting holes 409 are vertically connected with the corresponding adjusting grooves 402 and are vertically coaxially matched with one of the limiting holes 408 of the corresponding plug plates 403, the mounting holes 409 are vertically coaxially slidably matched with the limiting rods 4010, and the top ends of the limiting rods 4010 are vertically slidably matched with the corresponding limiting holes 408, and the limiting rods 4010 extend out of the fixing sleeves 40 1, the bottom end of the bottom surface of the fixing sleeve 401 is coaxially fixed with a handle 407, and the portion of the limiting rod 4010 located between the corresponding handle 407 and the bottom surface of the fixing sleeve 401 is coaxially gap-matched with a spring 406, and the two ends of the spring 406 are respectively fixedly connected to the corresponding handle 407 and the bottom surface of the fixing sleeve 401. The purpose of this arrangement is to firstly enable the extension bearing assembly 2 to be detachably assembled on both sides of the fixed bracket 1 by means of the horizontal sliding cooperation between the plug plate 403 and the adjustment groove 402 and the vertical sliding cooperation between the limiting rod 4010 and the limiting hole 408, so that the supporting width of the two sides of the fixed bracket 1 can be expanded by the setting of the extension bearing assembly 2. At the same time, since the number of limiting holes 408 provided on the plug plate 403 is multiple, The extended load-bearing component 2 can be adjusted to expand outward and contract inward by sliding the plug plate 403 laterally along the adjustment groove 402 and by vertically sliding the limit rod 4010 with the limit holes 408 at different positions, so that the supporting width of the extended load-bearing components 2 at both sides can be adjusted to a suitable range according to the size of the logistics transfer box to be carried. Moreover, when the extended load-bearing component 2 is used up and idle, it is only necessary to pull down the limit rod 4010 to disengage the limit hole 408, and the extended load-bearing component 2 can be detached from the outer side of the fixed bracket 1 by sliding the plug plate 403 from the outer end along the adjustment groove 402, so that the extended load-bearing component 2 can be separately stored and inspected and maintained.

[0041] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 As shown, the extension bearing assembly 2 is optimized as follows. Specifically, the top surface of the fixed bracket 1 is provided with a plurality of transverse guide grooves 202, and both ends of the guide grooves 202 are open. Both sides of each guide groove 202 are slidably matched with guide brackets 201 in the transverse direction, and the outer ends of the guide brackets 201 at the two side positions that are away from each other are fixed to the side end faces of the corresponding extension brackets 203. The advantage of such a setting is that, firstly, the extension bracket 203 can be adjusted by sliding the guide bracket 201 transversely along the guide groove 202. The guide bracket 201 is provided to guide and prevent the extension from going off track. At the same time, the connection between the extension bracket 203 and the fixed bracket 1 can be strengthened through the provision of the guide bracket 201, which is beneficial to improving the stability of the extension bracket 203 after the outward expansion adjustment. Moreover, the guide bracket 201 can also be provided to support the logistics transfer box at the gap position between the extension bracket 203 and the fixed bracket 1, preventing the extension bracket 203 from being unable to effectively support the logistics transfer box at the gap position between the extension bracket 203 and the fixed bracket 1 after the outward expansion adjustment is completed.

[0042] At the same time, the guide grooves 202 are all a kind of dovetail groove or I-shaped groove, and multiple guide grooves 202 are evenly distributed in the longitudinal direction, so that the guide bracket 201 has a good positioning and guiding design when sliding along the guide groove 202, and the guide bracket 201 can only slide laterally along the guide groove 202 and cannot escape from other directions. The end faces of the two guide brackets 201 of the same guide groove 202 are in contact with each other, and the top surfaces of the guide brackets 201 are flush with the top surface of the fixed bracket 1. Such an arrangement makes it easy for the guide brackets 201 on both sides to fill the entire guide groove 202, and at the same time, it is easy to make the top surface of the guide bracket 201 effectively support the logistics transfer box by making the top surface of the guide bracket 201 flush with the top surface of the fixed bracket 1.

[0043] Moreover, the inner end faces of the extension bracket 203 are in contact with the outer end faces corresponding to the fixed bracket 1, and the longitudinal width and vertical thickness of the extension bracket 203 and the fixed bracket 1 are consistent. This arrangement facilitates the shape of the extension bracket 203 to conform to the shape of the fixed bracket 1 after expansion. At the same time, the inner end faces of the extension bracket 203 are in contact with the outer end faces corresponding to the fixed bracket 1, and the fixed bracket 1 can be initially in contact with the end faces of the extension bracket 203 to carry the logistics transfer box more stably. Further preferably, the outer edges of the top surfaces of the extension brackets 203 at both sides are fixed with baffles 204 extending vertically in the longitudinal direction through connecting plates 205. This arrangement facilitates the prevention of the logistics transfer box from falling from the edge of the extension bracket 203 by setting baffles 204 at the edge of the top surface of the extension bracket 203. At the same time, the setting of baffles 204 also makes it more convenient for personnel to refer to the position of baffles 204 to adjust the outward expansion and inward contraction of the extension bracket 203.

[0044] See also Figure 2-Figure 6 As shown, the sliding adjustment component 4 is optimized as follows. Specifically, the bottom surface of the extension bracket 203 contacts the top surface of the corresponding fixed sleeve 401 but the two are not fixedly connected to prevent the fixed sleeve 401 from interfering with the smooth lateral sliding adjustment of the extension bracket 203. The cross-sectional shape of the adjustment groove 402 along the longitudinal vertical plane is rectangular, and the length of the plug plate 403 and the adjustment groove 402 is not greater than the length of the guide bracket 201 at the corresponding side position. Such an arrangement first facilitates the adjustment groove 402 to have a good positioning and guiding design. At the same time, since the length of the plug plate 403 and the adjustment groove 402 is not greater than the length of the guide bracket 201 at the corresponding side position, it can ensure that the guide bracket 201 has sufficient length to support the logistics transfer box at the gap position between the extension bracket 203 and the fixed bracket 1, thereby avoiding the guide bracket 201 being unable to play a bearing and supporting role in the gap position between the extension bracket 203 and the fixed bracket 1 due to being too short.

[0045] At the same time, when the inner end face of the extension bracket 203 is in contact with the outer end face corresponding to the fixed bracket 1, the limit rod 4010 is vertically slidably matched with the limit hole 408 at the outermost end position of the plug plate 403. This arrangement makes it easier for the extension bracket 203 to retract inward and adjust to the extreme position. First, the inner end face of the extension bracket 203 will be in contact with the outer end face corresponding to the fixed bracket 1, and at the same time, the limit rod 4010 will be vertically slidably matched with the limit hole 408 at the outermost end position to lock the extension bracket 203 so that it cannot move. The bottom surface of the mounting seat 404 is equipped with a handle 405 for easy hand holding. The purpose of this arrangement is to facilitate the extension of the bearing assembly 2 during the process of outward expansion adjustment and inward telescopic adjustment, and the plug plate 403 can be smoothly driven to slide laterally along the adjustment groove 402 by holding the handle 405 and applying force.

[0046] See also Figure 1 and Figure 2 As shown, the bottom surface of the base 3 is optimized as follows. Specifically, pads 301 are fixed longitudinally on both sides of the bottom surface of the base 3, and the pads 301 are longitudinally opened with passages 302 for forklifts to pass through smoothly. This arrangement makes it easy to lift the logistics transfer boxes on the top surfaces of the fixed bracket 1 and the extended bracket 203 by having the fork of an external forklift pass through the two passages 302 respectively, and to move and transfer them and lower them after they are in place.

[0047] With the above structure, when the logistics transfer box is used for carrying, since at the beginning, the plug plates 403 at the two side positions are horizontally slidably matched with the adjustment groove 402, and the limit rod 4010 is vertically slidably matched with the limit hole 408, then at this time, the extended bearing component 2 can be detachably combined on both sides of the fixed bracket 1 through the horizontal sliding cooperation between the plug plates 403 and the adjustment groove 402 and the vertical sliding cooperation between the limit rod 4010 and the limit hole 408. The fixed combination method of the extended bearing component 2 on the outside of the fixed bracket 1 is simple and easy to operate. In this way, the supporting width of the two side positions of the fixed bracket 1 can be extended by setting the extended bearing component 2, thereby achieving the effect of expanding and increasing the supporting area of ​​the bottom surface of the logistics transfer box, which is beneficial to improving the logistics transfer box. The stability of the flow transfer box when it is carrying loads. At the same time, during use, when the inner end face of the extended bracket 203 is in contact with the outer end face corresponding to the fixed bracket 1, the limit rod 4010 vertically slides with the limit hole 408 at the outermost position of the plug plate 403, and at the same time, the plug plates 403 at both sides are provided with multiple limit holes 408. When the hand-held handle 407 is pulled down and the top of the limit rod 4010 is stretched by the spring 406 to make the top of the limit rod 4010 disengage from the limit hole 408, the plug plate 403 slides horizontally along the adjustment groove 402, and the limit rod 4010 vertically slides with the limit holes 408 at different positions, respectively, so that the extended load-bearing component 2 can be adjusted to expand outward and to shrink inward during the subsequent return, which is convenient for The supporting width of the extended bearing components 2 at both sides is adjusted to a suitable range according to the size of the logistics transfer box to be carried, thereby improving the general use range of the extended bearing components 2 in the process of carrying the logistics transfer box. Specifically, during adjustment, the handle 405 can be held to drive the plug plate 403 to slide laterally along the adjustment groove 402. During this process, the plug plate 403 drives the extended bracket 203 to slide laterally through the mounting seat 404 at the end to expand outward or contract inward. At the same time, during the process of outward expansion adjustment and inward contraction adjustment of the extended bracket 203, the adjustment process of the extended bracket 203 can be guided by the guide bracket 201 sliding laterally along the guide groove 202. At the same time, the setting of the guide bracket 201 can also enhance the extension bracket 203. The connection between the seat 203 and the fixed bracket 1, and the setting of the guide bracket 201 can also support the logistics transfer box placed in the gap between the extension bracket 203 and the fixed bracket 1, which is beneficial to ensure the stability of the extended bearing component 2 when the expansion and contraction adjustment is completed. After the expansion and contraction adjustment is completed, the extended bearing component 2 can be used to place the logistics turnover box on the bearing surface formed by the fixed bracket 1 and the top surface of the extended bracket 203. When the extended bearing component 2 is used up or idle, it only needs to pull down the limit rod 4010 to disengage from the limit hole 408, and then the extended bearing component 2 can be detached from the outer side of the fixed bracket 1 by sliding the plug plate 403 along the adjustment groove 402 from the outer end. It should be noted thatAfter the plug plate 403 slips off the outer end of the adjustment slot 402, the extension bracket 203 should be pulled outwardly to make the guide bracket 201 completely slip off the outer end of the guide slot 202, and then the extension bearing assembly 2 can be smoothly detached from the side of the fixed bracket 1. The detachment method of the extension bearing assembly 2 outside the fixed bracket 1 is simple and easy to operate, which makes it easy to detach the extension bearing assembly 2 for regular maintenance in the later stage, and is also conducive to improving the flexibility of the use of the extension bearing assembly 2.

[0048] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An expandable and retractable logistics transfer box carrying device, comprising a base (3) and a fixed bracket (1), characterized in that: The base (3) is arranged horizontally, the fixed bracket (1) is located horizontally above the base (3), and the top surface of the base (3) is fixedly connected to the middle part of the bottom surface of the fixed bracket (1) via a support seat (5); Extended bearing components (2) are horizontally extended outwardly on both sides of the fixed bracket (1), and sliding adjustment components (4) are installed on both sides of the bottom surface of the fixed bracket (1). The extended bearing components (2) are fixedly connected to the corresponding side portions of the sliding adjustment components (4) that extend beyond the outside of the fixed bracket (1), so as to drive the extended bearing components (2) to perform outward expansion adjustment and inward contraction adjustment through the sliding adjustment components (4).

2. According to claim 1, the expandable and contractible logistics transfer box carrying device is characterized in that: The extended bearing components (2) each include an extended bracket (203), the extended brackets (203) at both sides are respectively located at the corresponding side portions of the fixed bracket (1) and both extend horizontally outward in a lateral direction, and the bottom surfaces of the extended brackets (203) are both fixedly connected to the portion of the sliding adjustment component (4) on the corresponding side that extends beyond the outside of the fixed bracket (1).

3. According to claim 2, the expandable and contractible logistics transfer box carrying device is characterized in that: The top surface of the fixed bracket (1) is provided with a plurality of transverse guide grooves (202), and both ends of the guide grooves (202) are open, and both sides of each guide groove (202) are slidably matched with guide brackets (201) in the transverse direction, and the outer ends of the guide brackets (201) at the two side positions that are away from each other are fixed to the side end surfaces corresponding to the extension brackets (203).

4. According to claim 3, the expandable and contractible logistics transfer box carrying device is characterized in that: The guide grooves (202) are all dovetail grooves or I-shaped grooves, and a plurality of the guide grooves (202) are evenly distributed in the longitudinal direction. The end surfaces of the two guide brackets (201) of the same guide groove (202) are in close contact with each other, and the top surfaces of the guide brackets (201) are flush with the top surface of the fixed bracket (1).

5. According to claim 4, the expandable and contractible logistics transfer box carrying device is characterized in that: The inner end faces of the extension bracket (203) are in close contact with the corresponding outer end faces of the fixed bracket (1), and the longitudinal width and vertical thickness of the extension bracket (203) and the fixed bracket (1) are consistent.

6. The expandable and contractible logistics transfer box carrying device according to claim 5, characterized in that: The outer edges of the top surfaces of the extension brackets (203) at both sides are vertically extended and fixed with baffles (204) via connecting plates (205) along the longitudinal direction.

7. An expandable and contractible logistics transfer box carrying device according to any one of claims 3 to 6, characterized in that: The sliding adjustment components (4) each comprise a fixing sleeve (401) and an inserting plate (403); the fixing sleeves (401) are fixed laterally on both sides of the bottom surface of the fixing bracket (1), and the fixing sleeves (401) extend beyond the outside of the fixing bracket (1); the fixing sleeves (401) are provided with adjustment grooves (402) in the laterally direction, and the adjustment grooves (402) are slidably matched with the inserting plates (403) in the laterally direction; the portions of the inserting plates (403) extending out of the corresponding outer ends of the adjustment grooves (402) are vertically fixed with mounting seats (404), and the mounting seats (404) are fixed to the bottom surfaces of the extension brackets (203) at the corresponding side portions.

8. The expandable and contractible logistics transfer box carrying device according to claim 7, characterized in that: The plug plates (403) at both sides are vertically provided with a plurality of limiting holes (408), and the plurality of limiting holes (408) are located in the same horizontal direction. The bottom surfaces of the fixing sleeves (401) at both sides are vertically provided with mounting holes (409) at end positions away from each other. The mounting holes (409) are vertically connected to the corresponding adjustment slots (402) and are vertically coaxially aligned with one of the limiting holes (408) of the corresponding plug plates (403). The mounting holes (409) are vertically coaxially slidably matched with the limiting rods (401 0), and the top ends of the limiting rods (4010) are vertically slidably matched with the corresponding limiting holes (408), the bottom ends of the limiting rods (4010) extending out of the bottom surface of the fixing sleeve (401) are coaxially fixed with a handle (407), and the portion of the limiting rods (4010) located between the corresponding handle (407) and the bottom surface of the fixing sleeve (401) is coaxially gap-matched with a spring (406), and the two ends of the spring (406) are respectively fixedly connected to the corresponding handle (407) and the bottom surface of the fixing sleeve (401).

9. The expandable and contractible logistics transfer box carrying device according to claim 8, characterized in that: The bottom surface of the extension bracket (203) contacts the top surface of the corresponding fixing sleeve (401) but the two are not fixedly connected; the cross-sectional shape of the adjustment slot (402) along the longitudinal vertical plane is a rectangle, and the length of the plug plate (403) and the adjustment slot (402) is not greater than the length of the guide bracket (201) at the corresponding side position; when the inner end surface of the extension bracket (203) is in contact with the corresponding outer end surface of the fixing bracket (1), the limit rod (4010) vertically slides with the limit hole (408) at the outermost position of the plug plate (403); and the bottom surface of the mounting seat (404) is provided with a handle (405) for easy handholding.

10. An expandable and contractible logistics transfer box carrying device according to any one of claims 1-6 and 8 or 9, characterized in that: Pads (301) are fixed longitudinally on both sides of the bottom surface of the base (3), and each pad (301) is provided with a passage (302) longitudinally for the fork rod of a forklift to pass smoothly.

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