CN218143719U

CN218143719U - Self-deceleration type material slide way and shelf assembly thereof

Info

Publication number: CN218143719U
Application number: CN202221764812.XU
Authority: CN
Inventors: 金敏
Original assignee: Zhong Shang Haile Electric Appliance Co ltd
Current assignee: Zhong Shang Haile Electric Appliance Co ltd
Priority date: 2022-07-06
Filing date: 2022-07-06
Publication date: 2022-12-27
Anticipated expiration: 2032-07-06

Abstract

The utility model provides a from speed reduction formula material slide and layer frame subassembly thereof, includes the base, is equipped with a plurality of commentaries on classics rollers that can lead when sliding the material along base length direction on the base, and both ends are equipped with the bayonet joint respectively around the base, are equipped with on the base to become the deceleration strip of sliding friction to the material speed reduction with the rotation friction of face contact by changeing the roller. By arranging the deceleration strip, rolling friction is changed into sliding friction, friction is increased, materials can be decelerated to a certain degree, dumping probability is reduced, and the materials slide stably; the guide protrusions are convex strips, and the convex strips extend along the material sliding direction, so that the convex strips can play a role in guiding and prevent the materials from being sent to deviate due to deceleration; the speed of the materials can be reduced step by step, so that the materials are prevented from falling down rapidly; the upper end surface of the deceleration strip extends upwards in an inclined manner from the rear side to the front side, so that the contact area of the materials and the guide bulge can be reduced, and the materials are prevented from falling down rapidly; the plug-in connector and the guide sliding block are integrally formed by injection molding, so that the manufacturing is simple and the production cost is low.

Description

Self-deceleration type material slide way and shelf assembly thereof

[ technical field ] A method for producing a semiconductor device

The utility model relates to a guide slide way in a freezer.

[ background of the invention ]

General refrigerator-freezer (freezer, refrigerator etc.) places material (cola, beverage, food etc.) through setting up the shelf, set up the guide way on the shelf, the direction of material front side to back is arranged into one row, it is smooth to slide from back to front in order to put the material, there is the mode through changeing the roller in the current design to help the material to slide, for example, patent number 201210056252.7, it reduces the friction to roll through the roller roll, make the material can quick roll, but when the material slides from back to front, the material speed is very fast, especially when the material is claw shape bottle bottom beverage, when the beverage glides, the bottle bottom is easily emptyd with the roller, it is inconvenient to find out customer's goods and user's reason goods.

[ Utility model ] content

The utility model aims to overcome the defects of the prior art and provide a self-deceleration type material slide way which has simple structure and can increase the friction of materials; the utility model also provides an use layer frame subassembly from speed reduction formula material slide.

In order to solve the problem, the utility model adopts the following technical scheme:

the utility model provides a from speed reduction formula material slide, includes the base, the base on be equipped with the roller that changes of a plurality of when can slide the material along base length direction, the base around both ends be equipped with bayonet joint, its characterized in that respectively: the base on be equipped with can with the face contact become the deceleration strip of sliding friction to the material speed reduction by the rotation friction of commentaries on classics roller.

The self-deceleration type material slide way is characterized in that: the deceleration strip extend along base width direction, the deceleration strip on be equipped with a plurality of direction archs that supply the contact of material bottom.

As above-mentioned self-deceleration formula material slide, its characterized in that: the guide protrusions are convex strips, the convex strips extend along the material sliding direction, and all the guide protrusions are arranged along the width direction of the base.

As above-mentioned self-deceleration formula material slide, its characterized in that: the upper end surface of the deceleration strip is a plane or a circular arc surface.

As above-mentioned self-deceleration formula material slide, its characterized in that: the deceleration strip on be equipped with a plurality of guide grooves that supply the contact of material bottom, the sand grip extend along material sliding direction, all the direction arch arrange along base width direction.

As above-mentioned self-deceleration formula material slide, its characterized in that: the deceleration strips are arranged from the middle of the base to the front end plug connectors and are provided with multiple sections at intervals, and the rotating rollers are arranged between the adjacent deceleration strips.

As above-mentioned self-deceleration formula material slide, its characterized in that: the upper end face of the deceleration strip extends upwards from the rear side to the front side in an inclined mode

The self-deceleration type material slide way is characterized in that: the base on be equipped with a plurality of appearance dress grooves of arranging along base length direction, the base about on the side be equipped with respectively a plurality ofly with hold the pivot groove of dress groove both ends intercommunication one by one, the roller establish and hold the dress inslot, the both ends of roller be equipped with the pivot that stretches into the pivot inslot, the upper end opening in pivot groove supply the pivot to put into, the base about on the side be equipped with the cutting that presss from both sides respectively on the base about with the opening in pivot groove cover.

The self-deceleration type material slide way is characterized in that: the plug-in connector and the base are integrally formed by injection molding.

The self-deceleration type material slide way is characterized in that: the plug-in connector is spliced with the split type end part of the base.

The self-deceleration type material slide way is characterized in that: the diameter of the roller is 3.8mm-5.5mm.

The self-deceleration type material slide way is characterized in that: the bottom of the rotating shaft groove is provided with a plurality of convex ribs which are contacted with the rotating shaft.

The utility model provides an use layer frame subassembly of above-mentioned self-decelerating formula material slide which characterized in that: the installation strip that sets up including double-phase relative separation, the base parallel be equipped with a plurality ofly and establish between two installation strips, the installation strip be equipped with the slot, the base around the bayonet joint at both ends insert respectively two the slot of installation strip in, the slot in be equipped with the location strip, the bayonet joint on be equipped with the constant head tank that supplies the location strip to stretch into, the up end of bayonet joint be equipped with a plurality of first jacks.

The shelf assembly as described above, characterized in that: the layer frame subassembly still includes a plurality of parallel arrangement and can be to the leading truck of material direction, and the leading truck both ends of the left and right sides insert respectively around in the first jack of both ends bayonet joint, adjacent the base between the interval set up, the mounting bar on the base be equipped with the one end and peg graft the insertion block in the slot, the insertion block on stretch out the one end of slot and be equipped with a plurality of second spliced eyes, all the other the both ends of leading truck insert respectively on two mounting bars relative the second jack that sets up on the insertion block in, peg graft on the front end bayonet joint and have the fender frame that can block the material, fender frame peg graft in the first jack on the left and right sides bayonet joint.

The shelf assembly as described above, characterized in that: the layer frame subassembly still include a plurality of parallel arrangement and can be to the leading truck of material direction, the both ends of leading truck insert respectively around in the first jack of both ends bayonet joint, every the left and right sides of base be provided with the leading truck respectively, peg graft on the front end bayonet joint and have the fender frame that can block the material, the fender frame peg graft in the first jack on the left and right sides bayonet joint.

The shelf assembly as described above, characterized in that: the layer frame assembly further comprises a bottom frame, and the base is arranged on the bottom frame.

The beneficial effects of the utility model are that: by arranging the deceleration strip, rolling friction is changed into sliding friction, friction is increased, materials can be decelerated to a certain degree, dumping probability is reduced, and the materials slide stably; the guide protrusions are convex strips, and the convex strips extend along the material sliding direction, so that the convex strips can play a role in guiding and prevent the materials from being sent to deviate due to deceleration; through arranging a plurality of sections of deceleration strips and arranging the rotating rollers between the adjacent deceleration strips, the materials can be decelerated step by step through multi-section deceleration, and the materials are prevented from falling down rapidly; the upper end surface of the deceleration strip extends upwards in an inclined manner from the rear side to the front side, so that the contact area of the materials and the guide bulge can be reduced, and the materials are prevented from falling down rapidly; the plug-in connector and the guide sliding block are integrally formed by injection molding, so that the manufacturing is simple and the production cost is low.

[ description of the drawings ]

Fig. 1 is a perspective view of a first embodiment of a self-decelerating material chute according to the present invention;

fig. 2 is an exploded view of a first embodiment of the self-decelerating material chute of the present invention;

fig. 3 is a front cross-sectional view of a first embodiment of the self-decelerating material chute of the present invention;

FIG. 4 isbase:Sub>A sectional view A-A of FIG. 3;

FIG. 5 is an enlarged view of section I of FIG. 4;

fig. 6 is an exploded view of a second embodiment of the self-decelerating material chute of the present invention;

fig. 7 is a perspective view of a third embodiment of the self-decelerating material chute of the present invention;

FIG. 8 is an enlarged view of the J portion of FIG. 7;

fig. 9 is a perspective view of a fourth embodiment of the self-decelerating material chute of the present invention;

FIG. 10 is an enlarged view of section K of FIG. 9;

fig. 11 is a perspective view of a fifth embodiment of the self-decelerating material chute of the present invention;

FIG. 12 is an enlarged view of the portion L of FIG. 11;

fig. 13 is a perspective view of a first embodiment of the shelf assembly of the present invention;

fig. 14 is a perspective view of a second embodiment of the shelving assembly of the invention;

fig. 15 is a perspective view of a third embodiment of the shelf assembly of the present invention;

fig. 16 is a perspective view of a fourth embodiment of the shelf assembly of the present invention;

fig. 17 is a bottom view of a fourth embodiment of the shelf assembly of the present invention;

fig. 18 is a perspective view of a fifth embodiment of the shelving assembly of the invention;

fig. 19 is a cross-sectional view of a fifth embodiment of the shelf assembly of the present invention;

fig. 20 is a sectional view of a sixth embodiment of the shelving assembly of the invention.

[ detailed description ] embodiments

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 to 5, a self-decelerating material chute according to a first embodiment includes a base 1, the base 1 is approximately rectangular, a plurality of rollers 2 capable of guiding a material when sliding are disposed on the base 1 along a length direction of the base 1, the rollers 2 are rotatably disposed, the material is guided to slide by rotating the rollers 2, and a diameter of each roller 2 is 3.8mm-5.5mm. The front end and the rear end of the base 1 are respectively provided with a plug-in connector 3, the front designation is the end close to one side of a freezer window or the moving direction of materials, and the plug-in connectors 3 facilitate the base 1 to be installed on a shelf. Be equipped with on the base 1 and can be to the deceleration strip 4 of material speed reduction, deceleration strip 4 is sliding friction, is equipped with the direction arch 41 of a plurality of supplies material bottom contacts on the deceleration strip 4, and direction arch 41 and material bottom face contact, rolling friction become sliding friction, and the material can slow down like this, and direction arch 41 terminal surfaces are equipped with the special fluorine dragon coating, reduce frictional force. In this embodiment, the guide protrusions 41 are convex strips, the convex strips extend along the material sliding direction (i.e., the length direction of the base 1), so that the material can be prevented from deviating from the slide way, the guide protrusions 41 are arranged along the width direction (perpendicular to the material sliding direction) of the base 1, the guide protrusions 41 are arranged in parallel, and the intervals between the guide protrusions 41 are 2-5mm. Deceleration strip 4 arranges from base 1 middle part to front end bayonet joint 3 and is equipped with multistage and interval setting, 4 parallel arrangement of multistage deceleration strip, and deceleration strip 4's width is 4-5.2cm, is equipped with between the adjacent deceleration strip 4 and changes roller 2, and through interval setting like this, the material can not once only sharply reduce the speed, prevents that the material from sharply reducing the speed and empting.

Be equipped with a plurality of holding grooves 11 of arranging along base 1 length direction on the base 1, every holds groove 11 and extends along base 1 width direction, be equipped with a plurality ofly respectively on the side about base 1 and hold the pivot groove 12 that 11 both ends of groove communicate one by one, all pivot grooves 12 are the cusp in base 1's limit portion. The roller 2 is arranged in the containing groove 11, and two ends of the roller 2 are provided with rotating shafts 21 extending into the rotating shaft grooves 12. The upper end opening in pivot groove 12 supplies pivot 21 to put into, is equipped with the clamp splice 5 that presss from both sides the opening with pivot groove 12 and cover on the side about base 1 respectively on the side about base 1, and clamp splice 5 has C word shape groove, and the opening of two clamp splices 5 is relative, presss from both sides the side about base 1, simple structure, simple to operate. The bottom of pivot groove 12 is equipped with a plurality of protruding muscle 13 with the contact of pivot 21, through setting up protruding muscle 13, reduces the area of contact of pivot 21, makes to change roller 2 and rotates more smoothly.

In order to reduce the cost, the plug connector 3 and the base 1 are integrally formed by injection molding. Both ends are equipped with mounting bar 6 around base 1, and mounting bar 6 is fixed on the layer frame, and mounting bar 6 is equipped with and supplies 3 one end male slots 61 of bayonet joint, is equipped with location strip 62 in the slot 61, is equipped with the constant head tank 31 that supplies location strip 62 to stretch into on the bayonet joint 3, and the up end of bayonet joint 3 is equipped with a plurality of jacks 32.

From deceleration formula material slide embodiment two, as shown in fig. 6, the difference with embodiment one lies in, bayonet joint 3 and base 1 can be split type tip and form through the concatenation, in this embodiment, one end bayonet joint 3 and base 1 integrated into one piece, the setting of other end components of a whole that can function independently, bayonet joint 3 and base 1 of components of a whole that can function independently can be fixed through gib block 5, gib block 5 and bayonet joint 3 and base 1 are fixed through interference fit or the clamp of colding pressing, through such setting when base 1 is not long enough, can add one section base 1. Of course, the plug connectors 3 at the two ends of the embodiment can be designed in a split manner, and the plug connectors 3 and the base 1 can be fixed in a clamping manner, a screw connection manner and the like.

Third embodiment of the self-deceleration type material chute, as shown in fig. 7 and 8, is different from the first embodiment in that the end surface of the deceleration strip 4 has no protrusion, and a plane, which is in contact with the bottom of the material, can be inclined at a certain angle.

Self-deceleration type material chute embodiment four, as shown in fig. 9 and fig. 10, differs from embodiment four in that the end surface of deceleration strip 4 has no protrusion, and an arc surface is in contact with the bottom of the material.

As shown in fig. 11 and 12, the difference between the fifth embodiment of the self-deceleration type material chute and the first embodiment is that the end surface of the deceleration strip 4 has no protrusion, but the deceleration strip 4 is provided with a plurality of guide grooves 44 for contacting the bottom of the material, the convex strips extend along the material sliding direction, and all the guide protrusions 41 are arranged along the width direction of the base 1.

A layer frame subassembly that uses above-mentioned self-deceleration formula material slide, embodiment one, as shown in fig. 13, includes two relative installation strips 6 that separate the setting, relative parallel arrangement around installation strip 6, and base 1 is parallel to be equipped with a plurality ofly and establish between two installation strips 6, and adjacent installation strip 6 has separated certain distance, and its interval is 2-6cm approximately, and installation strip 6 is equipped with slot 61, and installation strip 6 is similar to the C font. The bayonet joint 3 at both ends inserts respectively in the slot 61 of two mounting bars 6 around the base 1, is equipped with location strip 62 in the slot 61, is equipped with the constant head tank 31 that supplies location strip 62 to stretch into on the bayonet joint 3, and the up end of bayonet joint 3 is equipped with a plurality of first jacks 32, and first jack 32 is provided with two rows.

As shown in fig. 14, the second embodiment of the shelf assembly is different from the first embodiment in that a material guiding mechanism is provided, specifically, the shelf assembly further includes a plurality of guide frames 8 which are arranged in parallel and can guide the material, the guide frames 8 are parallel to the material sliding direction, two ends of the guide frames 8 on the left and right sides are respectively inserted into one of the first insertion holes 32 of one of the rows of the front and rear two-end insertion connectors 3, and the adjacent bases 1 are arranged at intervals. The base 1 is provided with an inserting block 7 with one end inserted in the slot 61 on the mounting bar 6, one end of the inserting block 7 extending out of the slot 61 is provided with a plurality of second inserting holes 71, two ends of the rest (two of the left and right sides are removed) guide frames 8 are respectively inserted into the second inserting holes 71 on the inserting blocks 7 oppositely arranged on the two mounting bars 6, a blocking frame 9 capable of blocking materials is inserted into the front end inserting head 3, the blocking frame 9 is inserted into the first inserting holes 32 on the left and right sides inserting heads 3, one guide slide way is formed by the base 1 and the guide frames 8 on the left and right sides of the base 1, the materials are discharged in one guide slide way in one row, the guide frames 8 can prevent the materials from falling, the blocking frame 9 is arranged at the foremost end of the guide slide way to block the materials, and the materials cannot continue to move forward.

Third embodiment of shelf unit, as shown in fig. 15, the difference with second embodiment lies in that the interval of base 1 is less (less than 7 mm), the grafting mode of leading truck 8 is different, specifically speaking, the shelf unit still includes a plurality of parallel arrangement and can be to the leading truck 8 of material direction, the both ends of leading truck 8 are inserted respectively in the first jack 32 of front and back both ends bayonet joint 3, the left and right sides of every base 1 is provided with leading truck 8 respectively, it has the fender frame 9 that can block the material to peg graft on the front end bayonet joint 3, keep off frame 9 and peg graft in the first jack 32 on the left and right sides bayonet joint 3. The base 1 and the guide frames 8 at the left end and the right end of the base 1 form a guide slideway for sliding materials, and the baffle frame 9 is arranged at the front side of the guide slideway.

The fourth embodiment of the shelf assembly is shown in fig. 16 and 17, and the difference from the first embodiment is that the shelf assembly further includes a bottom frame, the bottom frame is provided with support rods 14, the base 1 is arranged on the support rods 14, in this example, one base 1 corresponds to two support rods 14, the support rods 14 are arranged in parallel with the base 1, the base 1 is arranged on the support rods 14, guide frames 8 capable of guiding materials are arranged on the left side and the right side of the base 1 on the bottom frame, the guide frames 8 are fixed on the bottom frame, the guide frames 8 on the two sides of the base 1 and the base 1 form a slide way, the materials slide in the slide way, the front side and the rear side of each guide frame 8 are respectively provided with a transverse blocking rod 81 capable of blocking the materials, the transverse blocking rods 81 are transversely connected to one side of all the guide frames 8, the materials can be blocked, and the materials are prevented from falling out of the slide way.

As shown in fig. 18 and 19, the embodiment of the shelf assembly is different from the first embodiment in that the shelf assembly further includes a bottom frame, a plurality of transversely extending cross beams 15 are arranged on the bottom frame, the transverse direction is perpendicular to the sliding direction of the material, the cross beams 15 are arranged on the bottom frame from front to back, the base 1 is arranged on the cross beams 15, the height of the end surface of each middle cross beam 15 is sequentially increased from front to back, namely, the cross beam 15 on the foremost side is the lowest, and the cross beam 15 on the rearmost side is the highest, so that the front side of the base 1 is low and the rear side is high, and the material can be automatically replenished under the action of gravity. Be equipped with the spacer 16 that can lead the material on crossbeam 15 between adjacent base 1, the front side of chassis is equipped with the barrier frame 17 that can block the material, and the material slide is constituteed with base 1 between the adjacent spacer 16 to the adjacent spacer 16, and barrier frame 17 keeps off in material slide front side, and the front side of chassis can set up the price strip, and the rear side of chassis can set up the separation blade.

The sixth embodiment of the shelf assembly is shown in fig. 20, and the difference from the fourth embodiment is that the heights of the end surfaces of all the cross beams 15 are on the same plane in the present embodiment.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary skill personnel, do not deviate from the utility model discloses under the prerequisite of conceiving, can also make a plurality of simple deductions or replacement, all should regard as belonging to utility model's scope of protection.

Claims

1. The utility model provides a from speed reduction formula material slide, includes base (1), base (1) go up and be equipped with a plurality of commentaries on classics roller (2) that can lead when sliding the material along base (1) length direction, base (1) around both ends be equipped with bayonet joint (3), its characterized in that respectively: the base (1) is provided with a deceleration strip (4) which can be in surface contact with the surface and is changed into sliding friction from the rotating friction of the rotating roller (2) to decelerate the material.

2. The self-decelerating material chute according to claim 1, wherein: deceleration strip (4) extend along base (1) width direction, deceleration strip (4) on be equipped with a plurality of guide protrusion (41) that supply the contact of material bottom.

3. The self-decelerating material chute according to claim 2, wherein: the guide protrusions (41) are convex strips, the convex strips extend along the material sliding direction, and all the guide protrusions (41) are arranged along the width direction of the base (1).

4. The self-decelerating material chute according to claim 1, wherein: the upper end surface of the deceleration strip (4) is a plane or a circular arc surface.

5. The self-decelerating material chute according to claim 3, wherein: the deceleration strip (4) is provided with a plurality of guide grooves (44) for contacting the bottom of the material, the raised strips extend along the material sliding direction, and all the guide protrusions (41) are arranged along the width direction of the base (1).

6. The self-decelerating material chute according to claim 1, wherein: deceleration strip (4) arrange from base (1) middle part to front end bayonet joint (3) and be equipped with multistage and interval setting, be equipped with between adjacent deceleration strip (4) change roller (2).

7. The self-decelerating material chute according to claim 1, wherein: the upper end surface of the deceleration strip (4) extends upwards in an inclined mode from the rear side to the front side.

8. The self-decelerating material chute according to claim 1, wherein: base (1) on be equipped with a plurality of appearance dress grooves (11) of arranging along base (1) length direction, base (1) about on the side be equipped with respectively a plurality ofly with hold pivot groove (12) that dress groove (11) both ends communicate one by one, commentaries on classics roller (2) establish in holding dress groove (11), the both ends of commentaries on classics roller (2) be equipped with pivot (21) that stretch into in pivot groove (12), the upper end opening in pivot groove (12) supply pivot (21) to put into, base (1) about on the side be equipped with respectively press from both sides insert strip (5) that cover the opening in pivot groove (12) on base (1) about.

9. The self-decelerating material chute according to claim 1, wherein: the plug connector (3) and the base (1) are integrally formed by injection molding.

10. The self-decelerating material chute according to claim 1, wherein: the plug connector (3) is spliced with the split end part of the base (1).

11. The self-decelerating material chute according to claim 1, wherein: the diameter of the roller (2) is 3.8mm-5.5mm.

12. The self-decelerating material chute according to claim 8, wherein: the bottom of the rotating shaft groove (12) is provided with a plurality of convex ribs (13) which are contacted with the rotating shaft (21).

13. A racking assembly using the self-decelerating material chute of any one of claims 1 to 12, wherein: including double-phase mounting bar (6) that set up relatively separating, base (1) parallel be equipped with a plurality ofly and establish between two mounting bar (6), mounting bar (6) be equipped with slot (61), base (1) front and back both ends bayonet joint (3) insert respectively two slot (61) of mounting bar (6) in, slot (61) in be equipped with location strip (62), bayonet joint (3) on be equipped with constant head tank (31) that supply location strip (62) to stretch into, the up end of bayonet joint (3) be equipped with a plurality of first jacks (32).

14. The racking assembly according to claim 13, wherein: the layer frame assembly further comprises a plurality of guide frames (8) which are arranged in parallel and can guide materials, two ends of each guide frame (8) on the left side and the right side are respectively inserted into first jacks (32) of the front-end and rear-end connecting plugs (3), the adjacent guide frames are arranged among the bases (1) at intervals, each mounting bar (6) is provided with a connecting block (7) with one end connected into the corresponding slot (61) in the corresponding base (1), one end of each connecting block (7) extending out of the corresponding slot (61) is provided with a plurality of second connecting holes (71), the two ends of the other guide frames (8) are respectively inserted into the second connecting holes (71) in the corresponding connecting blocks (7) on the two mounting bars (6), a blocking frame (9) capable of blocking the materials is connected onto the front-end connecting plug (3) in an inserting mode, and the blocking frame (9) is connected into the first jacks (32) in the left-side and right-side connecting plugs (3) in an inserting mode.

15. The shelving assembly as defined in claim 13, wherein: the shelf assembly further comprises a plurality of guide frames (8) which are arranged in parallel and can guide materials, two ends of each guide frame (8) are respectively inserted into first insertion holes (32) of the front and rear two-end insertion connectors (3), each guide frame (8) is respectively arranged on the left side and the right side of the base (1), a blocking frame (9) capable of blocking the materials is inserted into the front end insertion connector (3), and the blocking frame (9) is inserted into the first insertion holes (32) in the left side and the right side insertion connectors (3).

16. The racking assembly according to claim 13, wherein: the layer frame subassembly still include the chassis, the chassis on be equipped with bracing piece (14), base (1) establish on bracing piece (14), the chassis on the left and right sides of base (1) be equipped with guide frame (8) that can lead the material, guide frame (8) around both sides be equipped with horizontal shelves pole (81) that can block the material respectively.

17. The racking assembly according to claim 13, wherein: the layer frame subassembly still include the chassis, the chassis on be equipped with many crossbeam (15) of horizontal extension, many crossbeam (15) be in the chassis on arrange to the back in the past, base (1) establish crossbeam (15) on, crossbeam (15) on adjacent base (1) between be equipped with can be to spacer (16) of material direction, the front side of chassis be equipped with the frame (17) that blocks the material.

18. The racking assembly according to claim 17, wherein: the height of the end face of the cross beam (15) is increased from front to back in sequence.