Layer structure assembly of combined frame and service vehicle thereof

Abstract

The utility model discloses a layer structure assembly of a combined frame and a service van thereof, the layer structure assembly of the combined frame comprises a layer plate, a plurality of column pipes and a plurality of side plates, the layer plate is provided with a plurality of clamping column bosses protruding outwards, and the clamping column bosses and the layer plate are integrally formed; the clamping column boss is provided with at least one positioning groove extending in the direction from the fixed end to the free end, the positioning groove is formed by recessing towards the interior of the clamping column boss, and the positioning groove comprises an L-shaped recess with an L-shaped horizontal section and a U-shaped recess with a U-shaped horizontal section; an opening of at least one U-shaped recess is formed between every two adjacent clamping column bosses and is opposite to the opening of the U-shaped recess, the column pipe is provided with a plate insertion groove which is concave inwards, the clamping column bosses are sleeved with the column pipe, the inner wall of the pipe opening of the column pipe is in transition fit with part of or all the outer side walls of the clamping column bosses, the horizontal section of the plate insertion groove is in a U shape, and the plate insertion groove is clamped in the U-shaped recess; the openings of the plate inserting grooves between the adjacent column pipes are opposite, the two sides of one side plate are clamped into the two opposite plate inserting grooves in a sliding mode respectively, the assembling modes are diversified, and using is more flexible.

Description

Technical Field

[0001] The utility model belongs to the technical field of combination racks, and particularly relates to a layer structure component of a combination rack and a service vehicle thereof. Background Art

[0002] A combination rack is a common daily necessity, which has the characteristics of diverse assembly methods and flexible use. In order to save transportation costs, the combination rack is not shipped out in the form of a finished product, but is disassembled and designed into multiple split parts, and then packaged and transported. This gives rise to a problem: that is, after the combination rack is shipped out, it is necessary for the store staff or consumers to assemble it again. Based on the consideration of "secondary assembly", the applicant aims to continuously research and design combination rack products with more convenient installation (or "foolproof" installation), more diverse usage methods, and more stable installation after installation.

[0003] The patent document with the application number CN201120040359.3 discloses an expandable combination rack, which includes a cross rack plate, a pressing member, a plurality of columns, a middle connecting member and a connecting member that are inserted and positioned in each column. The middle connecting member has a first engaging portion, and the connecting member has a second engaging portion corresponding to the first engaging portion. The user can select a plurality of connecting members to connect a plurality of pressing members and the middle connecting member, so as to adjust the number of pressing members and columns in the combination rack, and thus change the height dimension and shape of the combination rack; it also includes an extension plate that can connect a plurality of pressing members in series, so that a plurality of cross rack plates pressed by the pressing members are arranged in a row, thereby changing the length dimension of the combination rack.

[0004] The above-mentioned prior art can arbitrarily change its shape and size according to the needs of users, and greatly improve its convenience in use; however, there are many small connecting parts and locking parts involved, and it is very difficult for store staff or consumers to quickly get started with the assembly. Moreover, the more parts there are and the more complex the assembly is, the greater the probability of adverse consequences such as part omission, defective rate, and user complaints; at the same time, for the above-mentioned prior art, to ensure smooth insertion of the vertical rack plate into the slot on both sides, consumers need to perform simple alignment and adjustment by themselves. At the same time, the designed opening width of the slot is much larger than the thickness of the vertical rack plate to reduce the accuracy requirement for opening alignment.

[0005] In summary, the inventor believes that there is still room for improvement in the structure of the combination rack. Summary of the Invention

[0006] In view of the problems in the related art, the utility model provides a layer structure component of a combination rack and a service vehicle thereof to overcome the above-mentioned technical problems existing in the related prior art.

[0007] The technical solution of the utility model is realized as follows:

[0008] A layer structure component of a combination rack includes a layer board, a plurality of column tubes and a plurality of side plates.

[0009] On at least the top surface or the bottom surface of the laminate, there are several outwardly protruding clamping post bosses, and the clamping post bosses are integrally formed with the laminate;

[0010] The clamping post boss has at least one positioning groove extending from the fixed end to the free end, the positioning groove is recessed into the interior of the clamping post boss, and the positioning groove includes an L-shaped recess with an L-shaped horizontal cross-section and a U-shaped recess with a U-shaped horizontal cross-section;

[0011] The first end of the L-shaped recess extends to the free end of the clamping post boss, the first end of the U-shaped recess extends to the fixed end of the clamping post boss, and the second end of the L-shaped recess is connected to a part of the second end of the U-shaped recess;

[0012] There is at least one pair of openings of the U-shaped recesses opposite to each other between adjacent clamping post bosses. The column tube is a hollow structure that penetrates up and down and has a plate slot recessed inward along the length direction. The column tube is sleeved outside the clamping post boss. The inner wall of the tube orifice of the column tube forms a transition fit with part or all of the outer side walls of the clamping post boss. The horizontal cross-section of the plate slot is U-shaped, and the plate slot is clamped in the U-shaped recess;

[0013] The openings of the plate slots between adjacent column tubes are opposite to each other, and both sides of a side plate are slidably clamped in two opposite plate slots respectively.

[0014] Compared with the prior art, first, regarding the requirement for the alignment accuracy of the openings of the plate slots for inserting both sides of the side plate, the present utility model converts it to be completed during production and preparation, that is, for the clamping post bosses integrally formed with the laminate, when the manufacturer designs the mold of the laminate, the U-shaped recesses of adjacent clamping post bosses have been accurately aligned with high precision. Furthermore, the plate slots clamped in the U-shaped recesses of the clamping post bosses also have high-precision alignment, so as to ensure the smooth insertion of the side plate. The sales staff or consumers do not need to perform any alignment operations during "secondary assembly", and at the same time, it will not overly increase the transportation volume after packaging.

[0015] Secondly, based on the above design, the width of the plate slot can be designed to be relatively small, without reserving a tolerance space for the alignment and installation of the side plate, that is, it is relatively close to the width of the side plate. After the side plate is installed, it is more stable and is not likely to generate noise due to bumps, meeting the low-noise requirements of the applicant's main purchaser - hotels.

[0016] Again, if the U-shaped depression of the clamping post boss extends to the top of the clamping post boss, it is necessary to specifically align when assembling the column tube. Moreover, the structural strength of the thinner side of the U-shaped depression is relatively weak, and it is not easy to design it too high or too protruding, and it is easily damaged by bumps. Therefore, the present utility model designs it at the fixed end of the clamping post boss, which does not affect its above-mentioned "alignment" function. At the same time, an L-shaped depression connected to it is designed, and the structure is relatively open, facilitating the rapid insertion of the column tube into the clamping post boss, and then it can be inserted into the U-shaped depression by guiding the sliding using the structure.

[0017] Finally, the present utility model does not include small parts, so there is no problem of easy loss or omission of small parts. At the same time, the assembly method of the present utility model is: sleeving and fixing the column tubes corresponding to the number of clamping post bosses on the clamping post bosses respectively, and then selectively installing the side plates according to actual needs. The two sides of the side plate can be slid into two opposite plate slots, and the installation is convenient and fast. The user can select the stacking layers and the number of installed side plates according to actual needs, and the assembly method is diversified and the use is more flexible.

[0018] Preferably, the clamping post boss is a hollow structure, which saves production raw materials and reduces the weight of the finished product at the same time. The width of the outer peripheral wall of the clamping post boss decreases from the fixed end to the free end, which is convenient for quickly inserting the column tube.

[0019] More preferably, the clamping post boss is a hollow multi-step cylinder structure, and the width of each step cylinder decreases from the fixed end to the free end.

[0020] More preferably, the clamping post boss is a hollow three-step cylinder structure, which is respectively set as a wide-step cylinder, a middle-step cylinder and a narrow-step cylinder, and the three-step cylinders are connected by inclined surfaces;

[0021] The U-shaped depression is arranged on the wide-step cylinder, and the L-shaped depressions are arranged on the middle-step cylinder and the narrow-step cylinder.

[0022] Preferably, the exposed second end where the U-shaped depression is not connected to the L-shaped depression is provided with an oblique angle. This position is one of the main bumping positions when inserting the column tube. Designing it as an oblique angle can, firstly, guide the column tube to slide and insert, and secondly, avoid forming a right angle that is easy to scratch the skin of the assembler and is easy to be damaged by bumps.

[0023] Preferably, a card plate opening is provided at a position near the edge of the bottom of the layer board. The width of the card plate opening is adapted to the thickness of the upper edge of the side plate. The upper edge of the side plate is set as an upper clamping edge, and the upper clamping edge is clamped in the card plate opening to further improve the stability after the side plate is installed.

[0024] More preferably, the bottom surface of the layer board protrudes downward to form a grid-shaped reinforcing rib sheet. The card plate opening is provided on the reinforcing rib sheet near the edge of the layer board. The width of the card plate opening gradually increases near the opening end of the outside, and a transition fit is formed between the inner side of the card plate opening and the upper edge of the side plate;

[0025] The outer edge of the laminate is provided with a lower plate side wall. The bottom end of the lower plate side wall is lower than or flush with the bottom end of the reinforcing rib in the height direction. The lower plate side wall shields the reinforcing rib in the horizontal direction. The upper clamping edge is located inside the lower plate side wall. The main function of this design is that to a certain extent, it can reduce the requirement for the fitting degree between the upper edge of the side plate and the surface of the laminate. Since the upper clamping edge is designed to be hidden inside the lower plate side wall, even if the upper clamping edge is not completely horizontal or has a slight inclination, it does not prevent assembly and appearance, reducing the production difficulty and precision requirements.

[0026] Preferably, a plurality of upward clamping holes are provided at positions near the edge at the top of the laminate. The bottom surface of the side plate protrudes downward to form a plurality of clamping posts adapted to the clamping holes. The clamping posts are inserted into the clamping holes, and thus the lower edge of the side plate is fixed, further improving the stability after the side plate is installed.

[0027] Preferably, the outer edge of the laminate extends upward, outward, and then downward in sequence to form an η-shaped side wall, which has slight elastic deformation and will not be easily chipped or cracked when subjected to external force bumps.

[0028] The outer side of the η-shaped side wall serves as the lower plate side wall, and the clamping holes are provided on the top surface of the η-shaped side wall.

[0029] The side plate is a disc-shaped structure including a flat plate portion and an edge side wall. The edge of the flat plate portion extends toward one side of the plate surface to form the edge side wall. The outer surfaces of the first side wall and the second side wall opposite to each other on the edge side wall protrude outward to form ridges adapted to the plate slots. The free end of the third side wall of the edge side wall extends peripherally to form the upper clamping edge. The outer surface of the fourth side wall of the edge side wall is provided with the clamping posts. The free end of the fourth side wall extends peripherally to form the lower clamping edge of the side plate. The lower clamping edge is located inside the η-shaped side wall. A window is provided at a position corresponding to the clamping posts on the lower clamping edge. If the clamping posts cannot be seen through the window during insertion, it means that the insertion and installation are in place. Description of the Drawings

[0030] Figure 1 It is one of the structural schematic diagrams of the laminate of the present utility model (top view perspective);

[0031] Figure 2 It is the second structural schematic diagram of the laminate of the present utility model (bottom view perspective);

[0032] Figure 3 It is Figure 1 the enlarged view of part A of

[0033] Figure 4 It is Figure 1 the enlarged view of part B of

[0034] Figure 5 Structural schematic diagram of the column tube of the present utility model;

[0035] Figure 6 Structural schematic diagram of the side plate of the present utility model;

[0036] Figure 7 is Figure 6 Enlarged view at C of

[0037] Figure 8 is Figure 6 Enlarged view at D of

[0038] Figure 9 Structural schematic diagram of the combined rack of the present utility model;

[0039] Figure 10 Structural schematic diagram of the service vehicle of the present utility model.

[0040] Marking description:

[0041] 1. Shelf board;

[0042] 101. η-shaped side wall; 101a. Lower plate side wall; 101b. Card hole;

[0043] 102. Reinforcing rib piece; 102a. Card plate opening;

[0044] 103. Card column boss; 103a. L-shaped depression; 103b. U-shaped depression; 103c. Narrow step cylinder; 103d. Medium step cylinder; 103e. Wide step cylinder; 103f. Oblique angle;

[0045] 2. Column tube; 201. Plate slot;

[0046] 3. Side plate; 301. Flat plate part; 302. Upper card edge; 303. Rib; 304. Card column; 305. Window. Specific implementation manner

[0047] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0049] Embodiment 1

[0050] As Figures 1 to 9 shown, a layer structure component of a combined rack includes a layer board 1 with a square main body, a plurality of column tubes 2 and a plurality of side plates 3.

[0051] On at least the top surface or the bottom surface of the layer board 1, there are provided a number of outwardly protruding clamping post bosses 103, and the clamping post bosses 103 are integrally formed with the layer board 1.

[0052] The clamping post boss 103 has at least one positioning groove extending from the fixed end to the free end. In this embodiment, two positioning grooves perpendicular to each other are designed on one clamping post boss 103. The positioning groove is formed by being recessed into the inside of the clamping post boss 103, and the positioning groove includes an L-shaped recess 103A with an L-shaped horizontal cross-section and a U-shaped recess 103B with a U-shaped horizontal cross-section;

[0053] The first end of the L-shaped recess 103A extends to the free end of the clamping post boss 103, the first end of the U-shaped recess 103B extends to the fixed end of the clamping post boss 103, and the second end of the L-shaped recess 103A is connected to a part of the second end of the U-shaped recess 103B;

[0054] There is at least one U-shaped recess 103B with opposite openings between adjacent clamping post bosses 103. Since this embodiment is a single-layer side plate 3 design, there is one U-shaped recess 103B with opposite openings between adjacent clamping post bosses 103.

[0055] The column tube 2 is a hollow structure that penetrates up and down and is provided with an inwardly recessed plate slot 201 along the length direction. The column tube 2 is sleeved outside the clamping post boss 103, and the inner wall at the pipe orifice of the column tube 2 forms an interference fit with part or all of the outer side wall of the clamping post boss 103. The horizontal cross-section of the plate slot 201 is U-shaped, and the plate slot 201 is clamped on the U-shaped recess 103B.

[0056] The openings of the plate slots 201 between adjacent column tubes 2 face each other, and both sides of one side plate 3 are respectively slidably engaged in two opposite plate slots 201. Users can selectively install the side plate 3 to enclose a certain side of the combined rack.

[0057] In this embodiment, the clamping post boss 103 is of a hollow structure, and the width of the outer peripheral wall of the clamping post boss 103 decreases from the fixed end to the free end.

[0058] Specifically, the clamping post boss 103 is a hollow multi-step cylinder structure, and the width of each step cylinder decreases from the fixed end to the free end.

[0059] More specifically, the clamping post boss 103 is a hollow three-step cylinder structure, which is respectively set as a wide-step cylinder 103e, a medium-step cylinder 103d, and a narrow-step cylinder 103c. The three-step cylinders are connected by inclined surfaces;

[0060] The wide-step cylinder 103e is provided with the U-shaped recess 103B, the medium-step cylinder 103d and the narrow-step cylinder 103c are provided with the L-shaped recess 103A, and the outer wall of the wide-step cylinder 103e is in transitional fit with the inner wall of the column tube 2.

[0061] In this embodiment, the exposed second end of the U-shaped recess 103B that is not connected to the L-shaped recess 103A is provided with an inclined angle 103f.

[0062] In this embodiment, a card plate opening 102a in the shape of a nearly inverted U is provided at the bottom of the layer board 1 near the edge. The width of the card plate opening 102a is adapted to the thickness of the upper edge of the side plate 3. The upper edge of the side plate 3 is set as an upper clamping edge 302, and the upper clamping edge 302 is clamped in the card plate opening 102a.

[0063] Specifically, the bottom surface of the layer board 1 protrudes downward to form a grid-shaped reinforcing rib sheet 102. The reinforcing rib sheet 102 near the edge of the layer board 1 is provided with the card plate opening 102a. The width of the card plate opening 102a gradually increases near the opening end on the outside, and the inner side of the card plate opening 102a forms a transitional fit with the upper edge of the side plate 3.

[0064] The outer edge of the layer board 1 is provided with a lower plate side wall 101a. The bottom end of the lower plate side wall 101a is lower than or flush with the bottom end of the reinforcing rib sheet 102 in the height direction. The lower plate side wall 101a shields the reinforcing rib sheet 102 in the horizontal direction, so that the reinforcing rib sheet 102 cannot be directly seen, and the appearance of the combined rack is relatively simple and beautiful. The upper clamping edge 302 is located inside the lower plate side wall 101a.

[0065] In this embodiment, several (two) upward card holes 101b are formed at positions near the edge at the top of the laminate 1, and several (two) card posts 304 adapted to the card holes 101b protrude downward from the bottom surface of the side plate 3. The card posts 304 are inserted into the card holes 101b, and thus the lower edge of the side plate 3 is fixed.

[0066] Specifically, the outer edge of the laminate 1 extends upward, outward, and then downward in sequence to form an η-shaped side wall 101. The outer side of the η-shaped side wall 101 serves as the lower plate side wall 101a, and the card holes 101b are formed on the top surface of the η-shaped side wall 101.

[0067] The side plate 3 is a disc-shaped structure including a flat plate portion 301 and an edge side wall, and accommodates the laminate 1 with the side plate 3 installed outwardly. The edge of the flat plate portion 301 extends toward one side of the plate surface to form the edge side wall. Convex strips 303 adapted to the plate slots 201 protrude outward from the outer surfaces of the first side wall and the second side wall opposite to each other of the edge side wall. The free end of the third side wall of the edge side wall extends peripherally to form the upper card edge 302. The card posts 304 are provided on the outer surface of the fourth side wall of the edge side wall. The free end of the fourth side wall extends peripherally to form the lower card edge of the side plate 3. The lower card edge is located inside the η-shaped side wall 101, and a window 305 is formed at a position corresponding to the card posts 304.

[0068] Embodiment 2

[0069] As Figures 1 to 10 shown, a service cart includes the layer structure assembly of the combined rack described in Embodiment 1, and four laminates 1 are provided. Four rollers are installed at the bottom of the laminate 1 located at the lowermost position.

[0070] Considering that generally larger and heavier items are placed at the lowermost position, the side plate 3 is not installed on the lowermost laminate 1. The laminate 1 in the middle position generally places food or small items, so the side plate 3 is installed to prevent them from falling.

[0071] According to the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims

1. A layer structure component of a modular rack, characterized in that: It includes a layer plate, a plurality of column tubes and a plurality of side plates; At least the top surface or the bottom surface of the layer plate is provided with a plurality of outwardly protruding clamping column bosses, and the clamping column bosses are integrally formed with the layer plate; The clamping column boss has at least one positioning groove extending from the fixed end to the free end, the positioning groove is formed by being recessed into the interior of the clamping column boss, and the positioning groove includes an L-shaped recess with an L-shaped horizontal cross-section and a U-shaped recess with a U-shaped horizontal cross-section; The first end of the L-shaped recess extends to the free end of the clamping column boss, the first end of the U-shaped recess extends to the fixed end of the clamping column boss, and the second end of the L-shaped recess is connected to a part of the second end of the U-shaped recess; At least one U-shaped recessed opening is provided between adjacent column bosses, the column tube is a hollow structure penetrating from top to bottom and provided with a plate slot recessed inwardly along the length direction, the column tube is sleeved on the column boss, the inner wall of the column tube at the tube mouth forms a transition fit with part or all of the outer side wall of the column boss, the horizontal cross-section of the plate slot is U-shaped, and the plate slot is clamped in the U-shaped recess; The openings of the plate slots between the adjacent column tubes are opposite to each other, and the two sides of one side plate are respectively slidably engaged in the two opposite plate slots.

2. The layer structure assembly of the combined frame according to claim 1, characterized in that: The clamping column boss is a hollow structure, and the width of the outer peripheral wall of the clamping column boss decreases from the fixed end to the free end.

3. The layer structure assembly of the combined frame according to claim 2, characterized in that: The clamping column boss is a hollow multi-layered stepped tube structure, and the width of each layer of the stepped tube decreases from the fixed end to the free end.

4. The layer structure assembly of the combined frame according to claim 3, characterized in that: The clamping column boss is a hollow three-layer step cylinder structure, which is respectively configured as a wide step cylinder, a middle step cylinder and a narrow step cylinder, and the three-layer step cylinders are connected by inclined surfaces; The wide-step cylinder is provided with the U-shaped recess, and the middle-step cylinder and the narrow-step cylinder are provided with the L-shaped recess.

5. The layer structure assembly of the combined frame according to claim 4, characterized in that: The exposed second end of the U-shaped recess not connected to the L-shaped recess is provided with an oblique angle.

6. The layer structure assembly of the combined frame according to any one of claims 1 to 5, characterized in that: A clamping plate opening is provided at the bottom of the layer plate near the edge, the width of the clamping plate opening is adapted to the thickness of the upper edge of the side plate, the upper edge of the side plate is set as an upper clamping edge, and the upper clamping edge is clamped in the clamping plate opening.

7. The layer structure assembly of the combined frame according to claim 6, characterized in that: The bottom surface of the layer plate protrudes downward to form a grid-shaped reinforcing rib sheet, and the reinforcing rib sheet close to the edge of the layer plate is provided with the clamping plate opening, the width of the outer side of the clamping plate opening close to the opening end gradually increases, and the inner side of the clamping plate opening forms a transition fit with the upper edge of the side plate; The outer edge of the layer plate is provided with a lower plate side wall, the bottom end of the lower plate side wall is lower than or flush with the bottom end of the reinforcing rib sheet in the height direction, the lower plate side wall shields the reinforcing rib sheet in the horizontal direction, and the upper clamping edge is located on the inner side of the lower plate side wall.

8. The layer structure assembly of the combined frame according to claim 7, characterized in that: A plurality of upward clamping holes are provided at the top of the layer plate near the edge, and a plurality of clamping columns adapted to the clamping holes are formed on the bottom surface of the side plate and protruded downward. The clamping columns are inserted into the clamping holes so that the lower edge of the side plate is fixed.

9. The layer structure assembly of the combined frame according to claim 8, characterized in that: The outer edge of the layer plate extends upward, outward, and downward in sequence to form an n-shaped side wall, the outer side of the n-shaped side wall serves as the side wall of the lower plate, and the top surface of the n-shaped side wall is provided with the clamping hole; The side plate is a disc-shaped structure including a flat plate portion and an edge side wall, the edge of the flat plate portion extends toward one side of the plate surface to form the edge side wall, the outer surfaces of the first side wall and the second side wall opposite to the edge side wall protrude outward to form a convex strip adapted to the plate slot, the free end of the third side wall of the edge side wall extends toward the periphery to form the upper clamping edge, the outer surface of the fourth side wall of the edge side wall is provided with the clamping column, the free end of the fourth side wall extends toward the periphery to form the lower clamping edge of the side plate, the lower clamping edge is located on the inner side of the η-type side wall, and the lower clamping edge has a window corresponding to the position of the clamping column.

10. A service vehicle, characterized in that: A layer structure component comprising the combined frame according to any one of claims 1 to 9, wherein a plurality of rollers are installed at the bottom of the lowest layer plate.

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