CN210870640U - Multifunctional box type individual soldier camping bedding - Google Patents

Abstract

The utility model discloses a multifunctional box type individual soldier camping bedding, which comprises a box cover, a box body and a folding bed; the box cover and the box body are both rectangular; the box cover is buckled with the box body through a buckle I arranged on one side panel of the box cover and a buckle II in a symmetrical position with the buckle I; the folding bed is placed inside the box body in a folding mode. The multifunctional portable robot has the advantages of clear structural design, various functions, high integration level, strong practicability, convenience in carrying and transportation and wide application field.

Description

Multifunctional box type individual soldier camping bedding

Technical Field

The utility model relates to a portable sleeping accommodation field of camping, concretely relates to multi-functional box individual soldier sleeping accommodation of camping.

Background

In order to meet the requirements of tent hospital air transportation, remote delivery and rapid expansion, the individual-soldier camping bedding has the characteristics of modularization, light weight, standardization, high strength, good weather resistance and multiple functions. The single-soldier camping bedding in the prior use has the disadvantages of large weight, insufficient module integration, poorer waterproof performance, non-uniform size, poor strength and weather resistance of materials and single function.

SUMMERY OF THE UTILITY MODEL

For solving the problem that above-mentioned prior art exists, the utility model aims to provide a multi-functional box individual soldier's bedding of camping can satisfy modularization, lightweight, standardization, intensity height, the good, multi-functional requirement of weatherability.

In order to achieve the above purpose, the technical scheme of the utility model is that: a multifunctional box type single-soldier camping bedding comprises a box cover (1), a box body (4) and a folding bed (10); the box cover (1) and the box body (4) are both cuboid; the box cover (1) is buckled with the box body (4) through a buckle I (201) arranged on one side panel of the box cover (1) and a buckle II (202) at the symmetrical position of the buckle I; the folding bed (10) is placed in the box body (4) in a folding mode.

Furthermore, the box cover (1) is a box cover of which the upper surface of the outer side is punched to form a groove (6); the short sides of the lower surface of the box cover (1) are respectively connected with the table legs I (701) and the table legs II (702) through hinges, and when the table legs I (701) and the table legs II (702) are symmetrically buckled towards the inner side of the box cover (1) through hinges, the box cover (1) is formed; when the table legs I (701) and the table legs II (702) are opened through hinges to be perpendicular to the lower surface of the case cover (1), the case cover (1) and the table legs I (701) and the table legs II (702) form a table.

Furthermore, table leg I (701) and table leg II (702) are formed by welding two vertical aluminum alloy square pipes and a horizontal aluminum alloy square pipe, the hinge mount is in the one end of vertical aluminum alloy square pipe.

Furthermore, one side of the long edge of the opening surface of the box body (4) is connected with one side of the long edge of a cabinet door (8) of the storage cabinet which is usually arranged in the box body (4) through a pre-embedded screw; the laminated plate (14) which is usually arranged in the box body (4) is arranged at the position, perpendicular to the bottom surface of the box body (4) and the long side plates at two sides, of the center in the box body (4) through embedded screws, so that a storage cabinet is combined.

Furthermore, the cabinet door (8) of the storage cabinet is a cabinet door with an external surface which is punched to form a reinforcing rib I (801) and a reinforcing rib II (802) which are symmetrical up and down; a door lock (9) is arranged at the position, close to the door opening side, of the center of the locker door (8), and the door lock (9) can be used as a handle of the locker door; the side plate (5) of the box body (4) is a box body side plate of which the outer surface is punched to form a reinforcing rib; and a handle I (301) and a handle II (302) are arranged on the outer surface of the short side plate.

Further, the folding bed (10) comprises a bed frame and a bed board, wherein the bed frame is formed by cold bending of aluminum alloy square tubes and comprises a cylindrical cross beam I (1301), a cylindrical cross beam II (1302), a cylindrical cross beam III (1303), a cylindrical cross beam IV (1304), a square cross beam I (1305), a square cross beam II (1306), a square cross beam III (1307), a square cross beam IV (1308), a bed leg I (1101), a bed leg II (1102), a bed leg III (1103), a bed leg IV (1104), a bed leg V (1105) and a bed leg VI (1106); the bed plate comprises a bed plate I (1001), a bed plate II (1002), a bed plate III (1003) and a bed plate IV (1004); the bed board is made of aluminum alloy plates, the bed board I (1001) and the bed board IV (1004) are respectively positioned at the head and the tail of the folding bed (10), the bed board II (1002) and the bed board III (1003) are positioned at two sides of the middle point of the folding bed (10), and the bed board is connected with the bed frame through rivets; a plurality of strip-shaped holes are formed in the bed plate; the bed leg I (1101), the bed leg III (1103), the bed leg IV (1104) and the bed leg VI (1106) are respectively arranged on the cylindrical cross beam I (1301), the cylindrical cross beam II (1302), the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304) and can respectively rotate around the cylindrical cross beam I (1301), the cylindrical cross beam II (1302), the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304); the bed leg II (1102) and the bed leg V (1105) are respectively arranged on vertical beams at two sides of the bed frame through a hinge I (1201), a hinge IV (12011), a hinge III (1203) and a hinge VI (12033); and a reinforcing beam is arranged in the bed leg I (1101), the bed leg III (1103), the bed leg IV (1104) and the bed leg VI (1106) in a direction parallel to the cross beam.

Further, when the folding bed (10) is folded, the bed leg II (1102) and the bed leg V (1105) are kept to be fixed in a direction vertical to the bed surface, and the bed leg I (1101) and the bed leg III (1103) are folded towards the bed leg II (1102) around the cylindrical cross beam I (1301) and the cylindrical cross beam II (1302) respectively; the bed leg IV (1104) and the bed leg VI (1106) are folded towards the direction of the bed leg V (1105) around the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304) respectively; the vertical beams of the bed frame, which are perpendicular to the cross beam and are positioned at two sides of the cross beam, are formed by connecting eight small sections of vertical beams through a hinge I (1201), a hinge II (1202), a hinge III (1203), a hinge IV (12011), a hinge V (12022) and a hinge VI (12033); the vertical beams can be folded at the positions of the hinges I (1201), II (1202), III (1203), IV (12011), V (12022) and VI (12033), the vertical beams at the two sides of the hinges I (1201), IV (12011), III (1203) and VI (12033) can be folded downwards, and the vertical beams at the two sides of the hinges II (1202) and V (12022) are folded upwards to form a folded state of the folding bed (10);

when the folding bed (10) is unfolded, the bed leg I (1101), the bed leg II (1102), the bed leg III (1103), the bed leg IV (1104), the bed leg V (1105) and the bed leg VI (1106) are all in a downward state perpendicular to the ground, and the bed board I (1001), the bed board II (1002), the bed board III (1003) and the bed board IV (1004) are kept on the same plane and are parallel to the ground.

Further, the box cover (1) is a box cover made of a thermoplastic composite material honeycomb plate; the box body (4) is made of a thermoplastic composite material honeycomb plate.

Furthermore, the panel of the thermoplastic composite material honeycomb plate is a polypropylene plate reinforced by glass fiber, and the core material is a PP honeycomb.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a box and case lid adopt thermoplasticity combined material honeycomb panel, and this section material has characteristics such as high strength, shock-resistant, lightweight, weather resistance are good.

2. The utility model discloses an integral structure can effectively improve waterproof performance.

3. The utility model discloses a size reasonable in design easily transports and loading and unloading, and the modularization characteristics are obvious.

4. The utility model discloses a case multipurpose can expand for locker, folding bed and folding table, can satisfy portability and functional demand.

5. The utility model discloses the structure is firm, and bearing capacity is strong, and it need not the instrument supplementary to withdraw and expand, bare-handed can accomplish, and maneuverability is strong.

Drawings

FIG. 1 is a state diagram of the removal of a multi-functional box-type individual camping bedding;

FIG. 2 is an expanded view of a multi-functional box-type individual soldier camping bedding;

FIG. 3 is a structure view of a folding bed of a multifunctional box type individual camping bedding;

FIG. 4 is a folded view of a folding bed of a multi-functional box-type individual camping bedding;

FIG. 5 is a structure view of a folding bed of a multifunctional box type single-soldier camping bedding;

FIG. 6 is a schematic view of a bed plate of a folding bed of a multifunctional box-type individual-soldier camping bedding;

FIG. 7 is a schematic view of a cabinet structure of a multifunctional box-type single-soldier camping bedding;

FIG. 8 is a schematic view of a box of a multi-functional box-type individual camping bedding;

FIG. 9 is a schematic view of the deployment of the cover of a multi-functional box-type individual camping bedding;

FIG. 10 is a box cover structure view of a multi-functional box type individual camping bedding;

the reference numbers in the figures are: 1 box cover, 201 buckle I, 202 buckle II, 301 handle I, 302 handle II, 4 box body, 5 side plates, 6 grooves, 701 table leg I, 702 table leg II, 8 locker cabinet door, 801 reinforcing rib I, 802 reinforcing rib II, 9 door lock, 10 folding bed, 1001 bed plate I, 1002 bed plate II, 1003 bed plate III, 1004 bed plate IV, 1101 bed leg I, 1102 bed leg II, 1103 bed leg III, 1104 bed leg IV, 1105 bed leg V, 1106 bed leg VI, 1201 hinge I, 1202 hinge II, 1203 hinge III, 12011 hinge IV, 12022 hinge V, 12033 hinge VI, 1301 cylindrical beam I, 1302 cylindrical beam II, 1303 cylindrical beam III, 1304 cylindrical beam IV, 1305 square beam I, 1306 square beam II, 1307 square beam III, 1308 square beam IV and 14 layer plate.

Detailed Description

The technical scheme of the utility model is further described in detail with the accompanying drawings and the specific implementation mode:

as shown in fig. 1-10, a multifunctional box type single-soldier camping bedding comprises a box cover (1), a box body (4) and a folding bed (10); the box cover (1) and the box body (4) are both cuboid; the box cover (1) is buckled with the box body (4) through a buckle I (201) arranged on one side panel of the box cover (1) and a buckle II (202) at the symmetrical position of the buckle I; the folding bed (10) is placed in the box body (4) in a folding mode.

Furthermore, the box cover (1) is a box cover of which the upper surface of the outer side is punched to form a groove (6); the short sides of the lower surface of the box cover (1) are respectively connected with the table legs I (701) and the table legs II (702) through hinges, and when the table legs I (701) and the table legs II (702) are symmetrically buckled towards the inner side of the box cover (1) through hinges, the box cover (1) is formed; when the table legs I (701) and the table legs II (702) are opened through hinges to be perpendicular to the lower surface of the case cover (1), the case cover (1) and the table legs I (701) and the table legs II (702) form a table.

Furthermore, table leg I (701) and table leg II (702) are formed by welding two vertical aluminum alloy square pipes and a horizontal aluminum alloy square pipe, the hinge mount is in the one end of vertical aluminum alloy square pipe.

Furthermore, one side of the long edge of the opening surface of the box body (4) is connected with one side of the long edge of a cabinet door (8) of the storage cabinet which is usually arranged in the box body (4) through a pre-embedded screw; the laminated plate (14) which is usually arranged in the box body (4) is arranged at the position, perpendicular to the bottom surface of the box body (4) and the long side plates at two sides, of the center in the box body (4) through embedded screws, so that a storage cabinet is combined.

Furthermore, the cabinet door (8) of the storage cabinet is a cabinet door with an external surface which is punched to form a reinforcing rib I (801) and a reinforcing rib II (802) which are symmetrical up and down; a door lock (9) is arranged at the position, close to the door opening side, of the center of the locker door (8), and the door lock (9) can be used as a handle of the locker door; the side plate (5) of the box body (4) is a box body side plate of which the outer surface is punched to form a reinforcing rib; and a handle I (301) and a handle II (302) are arranged on the outer surface of the short side plate.

Further, the folding bed (10) comprises a bed frame and a bed board, wherein the bed frame is formed by cold bending of aluminum alloy square tubes and comprises a cylindrical cross beam I (1301), a cylindrical cross beam II (1302), a cylindrical cross beam III (1303), a cylindrical cross beam IV (1304), a square cross beam I (1305), a square cross beam II (1306), a square cross beam III (1307), a square cross beam IV (1308), a bed leg I (1101), a bed leg II (1102), a bed leg III (1103), a bed leg IV (1104), a bed leg V (1105) and a bed leg VI (1106); the bed plate comprises a bed plate I (1001), a bed plate II (1002), a bed plate III (1003) and a bed plate IV (1004); the bed board is made of aluminum alloy plates, the bed board I (1001) and the bed board IV (1004) are respectively positioned at the head and the tail of the folding bed (10), the bed board II (1002) and the bed board III (1003) are positioned at two sides of the middle point of the folding bed (10), and the bed board is connected with the bed frame through rivets; a plurality of strip-shaped holes are formed in the bed plate; the bed leg I (1101), the bed leg III (1103), the bed leg IV (1104) and the bed leg VI (1106) are respectively arranged on the cylindrical cross beam I (1301), the cylindrical cross beam II (1302), the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304) and can respectively rotate around the cylindrical cross beam I (1301), the cylindrical cross beam II (1302), the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304); the bed leg II (1102) and the bed leg V (1105) are respectively arranged on vertical beams at two sides of the bed frame through a hinge I (1201), a hinge IV (12011), a hinge III (1203) and a hinge VI (12033); and a reinforcing beam is arranged in the bed leg I (1101), the bed leg III (1103), the bed leg IV (1104) and the bed leg VI (1106) in a direction parallel to the cross beam.

Further, when the folding bed (10) is folded, the bed leg II (1102) and the bed leg V (1105) are kept to be fixed in a direction vertical to the bed surface, and the bed leg I (1101) and the bed leg III (1103) are folded towards the bed leg II (1102) around the cylindrical cross beam I (1301) and the cylindrical cross beam II (1302) respectively; the bed leg IV (1104) and the bed leg VI (1106) are folded towards the direction of the bed leg V (1105) around the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304) respectively; the vertical beams of the bed frame, which are perpendicular to the cross beam and are positioned at two sides of the cross beam, are formed by connecting eight small sections of vertical beams through a hinge I (1201), a hinge II (1202), a hinge III (1203), a hinge IV (12011), a hinge V (12022) and a hinge VI (12033); the vertical beams can be folded at the positions of the hinges I (1201), II (1202), III (1203), IV (12011), V (12022) and VI (12033), the vertical beams at the two sides of the hinges I (1201), IV (12011), III (1203) and VI (12033) can be folded downwards, and the vertical beams at the two sides of the hinges II (1202) and V (12022) are folded upwards to form a folded state of the folding bed (10);

when the folding bed (10) is unfolded, the bed leg I (1101), the bed leg II (1102), the bed leg III (1103), the bed leg IV (1104), the bed leg V (1105) and the bed leg VI (1106) are all in a downward state perpendicular to the ground, and the bed board I (1001), the bed board II (1002), the bed board III (1003) and the bed board IV (1004) are kept on the same plane and are parallel to the ground.

Further, the box cover (1) is a box cover made of a thermoplastic composite material honeycomb plate; the box body (4) is made of a thermoplastic composite material honeycomb plate.

Furthermore, the panel of the thermoplastic composite material honeycomb plate is a polypropylene plate reinforced by glass fiber, and the core material is a PP honeycomb.

Example (b):

in order to meet the requirements of highway and air transportation, the appearance specification of the module of the individual camping box body needs to be adapted to the standard-size tray. The minimum plane size of the unit goods is 1200mm 1000mm or 1100mm according to the requirements of GB/T15233-2008 packing unit goods size. The current tray size is divided into two large size series of 1200mm and 1100 mm. 1200mm 1000mm trays are the most widely used globally and are also the most widely used in china. The overall dimension of the camping box body module is designed as follows: 600 x 1000 x 400mm, plane area is 1/2 of 1200mm x 1000mm standard pallet, two camping box modules can be paved with one standard pallet plane.

The box body material adopts a thermoplastic composite material honeycomb plate, and is a thermoplastic light honeycomb sandwich structure plate, the core material adopts PP honeycomb, and the panel adopts a glass fiber reinforced polypropylene plate. It has the advantages of no toxicity, no odor, light weight, high strength, easy assembly (riveting and hot melt welding), water and moisture resistance, strong weather resistance (resisting ultraviolet radiation at-40 deg.C to 80 deg.C), and corrosion resistance (resisting oil stain, salt water and common chemicals).

In the multifunctional box type single-soldier camping bedding designed in the embodiment, when the multifunctional box type single-soldier camping bedding is used, the box cover and the box body can be unfolded into a 1000 x 600 x 300mm square table and a 1000 x 600 x 400mm storage cabinet, and the folding single bed and bedding are integrated in the box body.

According to the utility model discloses a box size, 4 book are designed into to the folding bed, and folding size is: 800 x 500 x 240mm, the size is 2000 x 760 x 300mm after being unfolded, the bed can be placed into the multifunctional box body after being folded, and the multifunctional box body can be used after being unfolded. Wherein the bedstead adopts 30 x 30mm, and 6 footpost of 8 crossbeams are designed to the shaping of the aluminum alloy side pipe cold-bending of 3mm of wall thickness, can bear more than 200KG, have the characteristics of stable in structure, bearing capacity is strong, light in weight. Wherein the bed board is made of aluminum alloy plates with the thickness of 3mm, holes are formed in the bed board, the air permeability is improved, the bed board is prevented from being sultry in summer, and the bed board is connected with the bed frame through rivets.

The utility model discloses a box can make up into a locker, and the size is: 1000X 600X 300mm, establish a plywood in, the cabinet door adopts aluminum alloy sheet material, forms the strengthening rib through the punching press processing and improves cabinet door intensity, designs a plug-type lock and can regard as the handle to use simultaneously. The plywood adopts aluminum alloy plate, improves locker storage space utilization. The cabinet door and the laminate are connected with the cabinet body through the embedded screws and can be detached without occupying space.

The utility model discloses a case lid can expand into a multi-functional square table, and the size is: 1000 x 600 x 400mm, can be used for multiple purposes such as study, dining, etc. The table legs are aluminum alloy square tubes with 30 x 30mm wall thickness and 3mm wall thickness, and the connecting pieces are formed by bending stainless steel plates.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (7)

1. The utility model provides a multi-functional box individual soldier's bedding of camping which characterized in that: comprises a box cover (1), a box body (4) and a folding bed (10); the box cover (1) and the box body (4) are both cuboid; the box cover (1) is buckled with the box body (4) through a buckle I (201) arranged on one side panel of the box cover (1) and a buckle II (202) at the symmetrical position of the buckle I; the folding bed (10) is arranged inside the box body (4) in a folding way, and the box cover (1) is a box cover made of a thermoplastic composite material honeycomb plate; the box body (4) is made of a thermoplastic composite material honeycomb plate, a panel of the thermoplastic composite material honeycomb plate is a glass fiber reinforced polypropylene plate, and a core material of the thermoplastic composite material honeycomb plate is a PP honeycomb.

2. The multifunctional box-type individual soldier camping bedding as claimed in claim 1, wherein: the box cover (1) is a box cover of which the upper surface of the outer side is punched to form a groove (6); the short sides of the lower surface of the box cover (1) are respectively connected with the table legs I (701) and the table legs II (702) through hinges, and when the table legs I (701) and the table legs II (702) are symmetrically buckled towards the inner side of the box cover (1) through hinges, the box cover (1) is formed; when the table legs I (701) and the table legs II (702) are opened through hinges to be perpendicular to the lower surface of the case cover (1), the case cover (1) and the table legs I (701) and the table legs II (702) form a table.

3. The multifunctional box-type individual soldier camping bedding as claimed in claim 2, wherein: table leg I (701) and table leg II (702) are formed by two vertical aluminum alloy square pipes and a horizontally aluminum alloy square pipe welding, the hinge mount is in the one end of vertical aluminum alloy square pipe.

4. The multifunctional box-type individual soldier camping bedding as claimed in claim 1, wherein: one side of the long edge of the opening surface of the box body (4) is connected with one side of the long edge of a cabinet door (8) of the storage cabinet which is arranged in the box body (4) at ordinary times through embedded screws; the laminated plate (14) which is usually arranged in the box body (4) is arranged at the position, perpendicular to the bottom surface of the box body (4) and the long side plates at two sides, of the center in the box body (4) through embedded screws, so that a storage cabinet is combined.

5. The multifunctional box-type individual soldier camping bedding as claimed in claim 4, wherein: the cabinet door (8) of the storage cabinet is a cabinet door with the outer surface formed into a reinforcing rib I (801) and a reinforcing rib II (802) which are symmetrical up and down through stamping treatment; a door lock (9) is arranged at the position, close to the door opening side, of the center of the locker door (8), and the door lock (9) can be used as a handle of the locker door; the side plate (5) of the box body (4) is a box body side plate of which the outer surface is punched to form a reinforcing rib; and a handle I (301) and a handle II (302) are arranged on the outer surface of the short side plate.

6. The multifunctional box-type individual soldier camping bedding as claimed in claim 1, wherein: the folding bed (10) comprises a bed frame and a bed board, wherein the bed frame is formed by cold bending of aluminum alloy square tubes and comprises a cylindrical cross beam I (1301), a cylindrical cross beam II (1302), a cylindrical cross beam III (1303), a cylindrical cross beam IV (1304), a square cross beam I (1305), a square cross beam II (1306), a square cross beam III (1307), a square cross beam IV (1308), a bed leg I (1101), a bed leg II (1102), a bed leg III (1103), a bed leg IV (1104), a bed leg V (1105) and a bed leg VI (1106); the bed plate comprises a bed plate I (1001), a bed plate II (1002), a bed plate III (1003) and a bed plate IV (1004); the bed board is made of aluminum alloy plates, the bed board I (1001) and the bed board IV (1004) are respectively positioned at the head and the tail of the folding bed (10), the bed board II (1002) and the bed board III (1003) are positioned at two sides of the middle point of the folding bed (10), and the bed board is connected with the bed frame through rivets; a plurality of strip-shaped holes are formed in the bed plate; the bed leg I (1101), the bed leg III (1103), the bed leg IV (1104) and the bed leg VI (1106) are respectively arranged on the cylindrical cross beam I (1301), the cylindrical cross beam II (1302), the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304) and can respectively rotate around the cylindrical cross beam I (1301), the cylindrical cross beam II (1302), the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304); the bed leg II (1102) and the bed leg V (1105) are respectively arranged on vertical beams at two sides of the bed frame through a hinge I (1201), a hinge IV (12011), a hinge III (1203) and a hinge VI (12033); and a reinforcing beam is arranged in the bed leg I (1101), the bed leg III (1103), the bed leg IV (1104) and the bed leg VI (1106) in a direction parallel to the cross beam.

7. The multifunctional box-type individual soldier camping bedding of claim 6, wherein: when the folding bed (10) is folded, the bed leg II (1102) and the bed leg V (1105) are kept to be vertical to the bed surface direction and are not moved, and the bed leg I (1101) and the bed leg III (1103) are folded towards the bed leg II (1102) around the cylindrical cross beam I (1301) and the cylindrical cross beam II (1302) respectively; the bed leg IV (1104) and the bed leg VI (1106) are folded towards the direction of the bed leg V (1105) around the cylindrical cross beam III (1303) and the cylindrical cross beam IV (1304) respectively; the vertical beams of the bed frame, which are perpendicular to the cross beam and are positioned at two sides of the cross beam, are formed by connecting eight small sections of vertical beams through a hinge I (1201), a hinge II (1202), a hinge III (1203), a hinge IV (12011), a hinge V (12022) and a hinge VI (12033); the vertical beams can be folded at the positions of the hinges I (1201), II (1202), III (1203), IV (12011), V (12022) and VI (12033), the vertical beams at the two sides of the hinges I (1201), IV (12011), III (1203) and VI (12033) can be folded downwards, and the vertical beams at the two sides of the hinges II (1202) and V (12022) are folded upwards to form a folded state of the folding bed (10);

when the folding bed (10) is unfolded, the bed leg I (1101), the bed leg II (1102), the bed leg III (1103), the bed leg IV (1104), the bed leg V (1105) and the bed leg VI (1106) are all in a downward state perpendicular to the ground, and the bed board I (1001), the bed board II (1002), the bed board III (1003) and the bed board IV (1004) are kept on the same plane and are parallel to the ground.

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