A folding security cabinet

Abstract

The application relates to the technical field of secret equipment, and discloses a folding secret cabinet which comprises a cabinet door and a cabinet body; the cabinet door, side plates and a bottom plate are hinged to the door frame to be folded and turned inwards towards the door frame; a back plate is detachably connected with the side plates; a top plate is detachably arranged at a cabinet body top opening formed by the door frame, the side plates and the back plate; the cabinet body and the cabinet door are assembled to form a secret space; and a joint formed between adjacent plates in the cabinet door, the door frame, the side plates, the back plate, the bottom plate and the top plate cannot directly lead to the secret space. The application greatly reduces the volume of the product in a non-use state, facilitates quick assembly of the product in use, improves the assembly convenience, reduces the assembly difficulty, and effectively guarantees the secret performance and the safety performance of the product.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of security equipment, in particular to a folding security cabinet. BACKGROUND

[0002] The security cabinet is a device for storing high-level security and secret carrier files. The traditional security cabinet generally has two structural forms, the first is a whole type, and the second is an assembled type.

[0003] The volume of the whole type security cabinet is fixed from the formation of the cabinet body, and cannot be compressed until the product is scrapped and recycled. It always occupies a large space, most of which has no value only in the product use process. On the contrary, these spaces in the production, circulation, warehousing, transportation, distribution, migration and other processes are an invisible cost burden, resulting in high production cost, high inventory pressure, high transportation cost, difficult distribution and migration, etc. These shortcomings are particularly prominent in the increasingly popular e-commerce mode, which greatly limits the sales of security cabinet products on e-commerce platforms.

[0004] The assembled security cabinet greatly reduces the transportation volume compared with the whole type security cabinet because the plate is disassembled for delivery. However, for users, the assembly of the assembled security cabinet is very difficult, mainly reflected in the difficulty of finding the installation relationship between the multiple loose plates, the difficulty of matching the installation position, and the general one-time installation tool provided by the sales, which has poor quality and increases the difficulty of user operation.

[0005] Therefore, the prior art needs to be improved. SUMMARY

[0006] The purpose of the present application is to provide a folding security cabinet to solve the technical problems of large idle volume or high assembly difficulty of the prior art security cabinet.

[0007] In order to achieve the above purpose, the present application provides a folding security cabinet, comprising:

[0008] a cabinet door;

[0009] a cabinet body comprising a door frame, side plates, a back plate, a bottom plate and a top plate;

[0010] The cabinet door, side plates and bottom plate are hinged to the door frame to be folded inwardly, the back plate is detachably connected to the side plates, and the top plate is detachably arranged at the top opening of the cabinet body surrounded by the door frame, side plates and back plate, and the cabinet body and the cabinet door are assembled to form a security space.

[0011] The side edges of the cabinet door and the upper and lower edge frames of the door frame are hingedly connected by opening and closing assemblies, which make the joint between the cabinet door and the side edge frames of the door frame unable to directly pass through the secret space; the upper edge frame is provided with an upper shielding part, and the lower edge frame is provided with a lower shielding part, which make the joint between the cabinet door and the upper and lower edge frames unable to directly pass through the secret space;

[0012] The front side edges of the side plates and the side edge frames of the door frame are hingedly connected by connecting assemblies, which make the joint between the side plates and the side edge frames unable to directly pass through the secret space;

[0013] The rear side edges of the side plates and the side edges of the back plate are detachably connected by assembling assemblies, which make the joint between the side plates and the back plate unable to directly pass through the secret space;

[0014] The inner side lower parts of the door frame, the side plates and the back plate are provided with lower bending parts, which make the joint between the bottom plate and the door frame, the side plates and the back plate unable to directly pass through the secret space;

[0015] The inner side upper parts of the door frame, the side plates and the back plate are provided with upper bending parts, which make the joint between the top plate and the door frame, the side plates and the back plate unable to directly pass through the secret space.

[0016] In some embodiments of the present application, the connecting assembly comprises a first rotating part, a second rotating part, a first limiting part and a second limiting part;

[0017] The first rotating part is arranged on the mating surface of the front side edge of the side plate, and the second rotating part is arranged on the mating surface of the side edge frame of the door frame, and is used for hingedly connecting with the first rotating part;

[0018] The first limiting part is arranged on the mating surface of the front side edge of the side plate, and the length of the first limiting part is consistent with the length of the mating surface of the side plate; the second limiting part is arranged on the mating surface of the side edge frame of the door frame, and the length of the second limiting part is consistent with the length of the mating surface of the side edge frame; when the side plate is turned to an unfolded state, the second limiting part and the first limiting part are matched with each other, so that the mating surface of the side plate and the mating surface of the side edge frame form a joint unable to directly pass through the secret space and having a uniform width, and the side plate is limited to be turned along a folding path to a folded state to be separated from the side edge frame.

[0019] In some embodiments of the present application, the first limiting part forms a preset channel with a bend, and the preset channel is defined as follows: when the side plate is flipped to the unfolded state, the second limiting part cooperates with the rear section of the preset channel, and the front section of the preset channel limits the side plate to rotate along the folding path only.

[0020] In some embodiments of the present application, the first limiting part is a limiting groove, and the second limiting part is a limiting hook, and when the side plate is flipped to the unfolded state, the front end of the limiting hook abuts against the inner wall of the limiting groove.

[0021] In some embodiments of the present application, the connecting assembly further comprises an external connecting part, which is arranged on the fitting surface of the side frame, and the length of the external connecting part is not less than the length of the fitting surface of the side frame, and when the side plate is flipped to the unfolded state, the external connecting part abuts against the outer surface of the side plate to shield the joint between the fitting surface of the side plate and the fitting surface of the side frame.

[0022] In some embodiments of the present application, the assembling assembly comprises a first bending part and a second bending part.

[0023] The first bending part is arranged on the assembling surface of the rear side edge of the side plate, and the length of the first bending part is consistent with the length of the assembling surface of the side plate, the second bending part is arranged on the assembling surface of the side edge of the back plate, and the length of the second bending part is consistent with the length of the assembling surface of the back plate, and the second bending part cooperates with the first bending part to form a detachable buckling structure.

[0024] When the side plate and the back plate are pre-aligned, the back plate is moved along the mounting path to form a buckling with the side plate, the second bending part cooperates with the first bending part to limit the back plate to move along the mounting path only to separate from the side plate, and the assembling assembly forms a joint between the assembling surface of the side plate and the assembling surface of the back plate, which cannot directly pass through the secure space and has a uniform width.

[0025] In some embodiments of the present application, the first bending part has at least two bends, and the end thereof forms a first guide edge, and the second bending part has at least two bends, and the end thereof forms a second guide edge.

[0026] When the second bending part cooperates with the first bending part, the second guide edge abuts against the first guide edge to reduce the joint between the assembling surface of the back plate and the assembling surface of the side plate.

[0027] In some embodiments of the present application, the first bending part further comprises a first flange connected with the first guide edge, and the second bending part further comprises a second flange connected with the second guide edge.

[0028] When the second bending portion and the first bending portion are matched with each other, the first flange and the second flange cooperate to limit the up-and-down movement of the back plate relative to the side plate.

[0029] In some embodiments of the present application, the cabinet door comprises a first door body and a second door body.

[0030] The left side edge of the first door body is connected to the left side edge of the door frame through the opening and closing assembly, so that a joint between the first door body and the left frame of the door frame cannot pass through the secret space; and the right side edge of the first door body is provided with a convex edge.

[0031] The right side edge of the second door body is connected to the right side edge of the door frame through the opening and closing assembly, so that a joint between the second door body and the right frame of the door frame cannot pass through the secret space.

[0032] When the cabinet door is in the closed state, the left side edge of the second door body is overlapped on the convex edge, so that a joint between the second door body and the first door body cannot pass through the secret space.

[0033] In some embodiments of the present application, the opening and closing assembly comprises an avoiding groove, a door rotating shaft and a guide folded edge portion.

[0034] The avoiding groove is formed at a front position of the inner surface of the left frame, the door rotating shafts are arranged on the upper surface of the lower frame and the lower surface of the upper frame of the door frame at a predetermined distance to the right of the avoiding groove, and the door rotating shafts are connected to the bottom and the top of the first door body, respectively; the guide folded edge portion is formed on the left side edge of the first door body, and the straight line distance between the door rotating shaft at the top and the upper shielding portion is the radius of a circle with the door rotating shaft as the center, and the guide folded edge portion is located in the range of the circle.

[0035] When the first door body is flipped to the closed state, the guide folded edge portion partially extends into the avoiding groove, the outer surface of the first door body is attached to the groove wall of the avoiding groove, so that a joint between the first door body and the left frame cannot pass through the secret space.

[0036] In some embodiments of the present application, the guide folded edge portion comprises a first edge, a second edge and a third edge connected in sequence.

[0037] The first edge is connected to the outer surface of the first door body at a fifth included angle, the second edge is connected to the first edge at a sixth included angle, and the third edge is parallel to the outer surface of the first door body to form a multi-bending structure.

[0038] In some embodiments of the present application, the upper frame of the door frame is provided with the upper blocking part at the bottom, which is a blocking piece structure. When the cabinet door is in the closed state, the upper joint between the upper edge of the cabinet door and the upper frame corresponds to the blocking piece structure, so that the upper joint cannot directly pass through the secret space.

[0039] In some embodiments of the present application, when the bottom plate is in the unfolded state, the front side thereof cooperates with the lower frame of the door frame to form the lower blocking part, which is a step structure. When the cabinet door is in the closed state, the lower joint between the lower edge of the cabinet door and the lower frame of the door frame corresponds to the step structure, so that the lower joint cannot directly pass through the secret space.

[0040] In some embodiments of the present application, the top plate comprises a table plate and a top bending part provided at the bottom of the table plate.

[0041] The upper bending part provided on the back plate forms a slot towards the cabinet, and the top bending part close to the back plate is provided with an insertion piece for inserting into the slot.

[0042] The upper bending part provided on the door frame is fixedly connected with the top bending part close to the door frame through a locking piece.

[0043] In some embodiments of the present application, the locking piece is movably arranged on the top bending part close to the door frame, and the locking piece has an unlocked state and a locked state.

[0044] When the locking piece is switched to the locked state, the upper bending part provided on the door frame is locked to form a fixed connection.

[0045] In some embodiments of the present application, the side of the bottom plate and the side frame of the door frame are hingedly connected through a turnover assembly, and the inner surface of the back plate or the side plate is provided with an anti-uplift piece corresponding to the rear end of the bottom plate. The anti-uplift piece is used to limit the upward turnover of the bottom plate in the unfolded state.

[0046] In some embodiments of the present application, the anti-uplift piece is movably arranged on the inner surface of the side plate, and the anti-uplift piece has a storage state and a locking state.

[0047] When the anti-uplift piece is in the storage state, it is close to the inner surface of the side plate without hindering the downward turnover of the bottom plate to the unfolded state.

[0048] When the anti-uplift piece is switched to the locking state, the bottom thereof abuts against the upper surface of the bottom plate.

[0049] In some embodiments of the present application, the side frame of the door frame is provided with a horizontal frame parallel to the lower frame of the door frame at a predetermined height.

[0050] The cabinet body further comprises a partition plate hinged with the door frame to be folded inwardly toward the door frame, and the partition plate cooperates with the horizontal frame to divide the cabinet body into two upper and lower secret spaces, and each secret space is independently opened and closed by one cabinet door.

[0051] Compared with the prior art, the folding secret cabinet has the beneficial effects that:

[0052] Firstly, the connection relationship between the plates is set as a hinged and detachable form, so that the cabinet body can be folded and detached when not in use, and the volume of the folded secret cabinet can be reduced to 25% of the unfolded state, thereby greatly reducing the volume of the product in the intermediate processes of production, circulation, storage, transportation, distribution and migration on the basis of the same use space, reducing the storage and logistics costs, and making the secret cabinet product more e-commerce friendly. Compared with the existing whole secret cabinet which sells the unchangeable "cabinet space", the present application sells the changeable "secret space".

[0053] Secondly, the cabinet door, the side plate and the bottom plate are set as an integral assembly hinged with the door frame, so that the user can quickly unfold the main part of the cabinet body during assembly without using tools; and the back plate and the top plate with a very large size difference are set as detachable single parts, so that the user can quickly identify the cooperation relationship between the plates during assembly. Compared with the existing assembled secret cabinet, the present application greatly improves the assembly convenience and reduces the assembly difficulty.

[0054] Thirdly, the joint formed between the adjacent plates cannot directly pass through the secret space in the cabinet, which effectively prevents illegal personnel from inserting a tool into the joint to pry open the cabinet body from the outside, or sticking out the files in the secret space from the joint by using a tool. Compared with the existing ordinary folding cabinet, the present application effectively guarantees the security performance and safety performance of the product, so that the secret cabinet can meet the secret detection requirements. BRIEF DESCRIPTION OF DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0056] Figure 1 is the unfolded state structure schematic diagram of the folding secret cabinet of the present application embodiment 1;

[0057] Figure 2 is the exploded structure schematic diagram of Figure 1 ; and

[0058] Figure 3 is a structure schematic diagram of the folding security cabinet in the folded state according to Embodiment 1 of the present application;

[0059] Figure 4 is a structure schematic diagram of the cabinet door, the door frame, the side plate and the bottom plate in the unfolded state;

[0060] Figure 5 is a front view structure schematic diagram of the cabinet door, the door frame, the side plate and the bottom plate in the folded state;

[0061] Figure 6 is a rear view structure schematic diagram of the cabinet door, the door frame, the side plate and the bottom plate in the folded state;

[0062] Figure 7 is a front view structure schematic diagram of the door frame;

[0063] Figure 8 is a rear view structure schematic diagram of the door frame;

[0064] Figure 9 is a structure schematic diagram of the door frame and the cabinet door;

[0065] Figure 10 is a front view structure schematic diagram of the door frame and the cabinet door;

[0066] Figure 11 is Figure 10 A1-A1 cross-sectional view in the middle;

[0067] Figure 12 is Figure 11 A enlarged view in the middle;

[0068] Figure 13 is a structure schematic diagram of the door frame and the cabinet door in the folded state at Figure 11 position;

[0069] Figure 14 is a structure schematic diagram of the door frame and the side plate in the unfolded state;

[0070] Figure 15 is a side view structure schematic diagram of the door frame and the side plate in the unfolded state;

[0071] Figure 16 is Figure 15 D1-D1 cross-sectional view in the middle;

[0072] Figure 17 is Figure 16 B enlarged view in the middle;

[0073] Figure 18 is a structure schematic diagram of the back plate and the side plate in the unfolded state;

[0074] Figure 19 is a side view structure schematic diagram of the back plate and the side plate in the unfolded state;

[0075] Figure 20 is Figure 19 is a sectional view taken along line E1-E1 in FIG. 4;

[0076] Figure 21 is Figure 20 is an enlarged view of portion D in FIG. 4;

[0077] Figure 22 is Figure 20 is an enlarged view of portion C in FIG. 4;

[0078] Figure 23 is a schematic view of an axial side structure of the cabinet from a bottom view;

[0079] Figure 24 is a schematic view of an axial side structure of the cabinet from a top view;

[0080] Figure 25 is a schematic view of a structure of the cabinet from a top view;

[0081] Figure 26 is Figure 25 is a sectional view taken along line F1-F1 in FIG. 5;

[0082] Figure 27 is Figure 25 is a sectional view taken along line G1-G1 in FIG. 6;

[0083] Figure 28 is a schematic view of an axial side structure of the cabinet without a top plate from a rear view;

[0084] Figure 29 is a schematic view of an axial side structure of the top plate from a bottom view;

[0085] Figure 30 is a schematic view of a structure of the top plate from a bottom view;

[0086] Figure 31 is Figure 30 is a partial schematic view of a sectional view taken along line J1-J1 in FIG. 8;

[0087] Figure 32 is Figure 30 is a partial schematic view of a sectional view taken along line H1-H1 in FIG. 7;

[0088] Figure 33 is a schematic view of an axial side structure of the cabinet without a bottom plate from a top view;

[0089] Figure 34 is a schematic view of an axial side structure of the bottom plate from a bottom view;

[0090] Figure 35 is a schematic view of a structure of the bottom plate from a bottom view;

[0091] Figure 36 is Figure 35is a partial schematic view of a cross-sectional view at L1-L1;

[0092] Figure 37 is Figure 35 is a partial schematic view of a cross-sectional view at K1-K1;

[0093] Figure 38 is Figure 26 is an enlarged view at E;

[0094] Figure 39 is Figure 26 is an enlarged view at F;

[0095] Figure 40 is Figure 27 is an enlarged view at J;

[0096] Figure 41 is Figure 26 is an enlarged view at G;

[0097] Figure 42 is Figure 26 is an enlarged view at H;

[0098] Figure 43 is Figure 27 is an enlarged view at K;

[0099] Figure 44 is a schematic of an assembling step of the folding security cabinet Figure 1 ;

[0100] Figure 45 is a schematic of an assembling step of the folding security cabinet Figure 2 ;

[0101] Figure 46 is Figure 45 is an enlarged view at L;

[0102] Figure 47 is a schematic of an assembling step of the folding security cabinet Figure 3 ;

[0103] Figure 48 is a schematic of an assembling step of the folding security cabinet Figure 4 ;

[0104] Figure 49 is a schematic of an unfolded state structure of the folding security cabinet of the embodiment 2 of the present application;

[0105] Figure 50 is a schematic of a folded state structure of the folding security cabinet of the embodiment 2 of the present application;

[0106] Figure 51 is a schematic of a rear view structure of the folding state of the cabinet door, the door frame, the side plate, the partition plate and the bottom plate;

[0107] Figure 52 is a structural schematic diagram of the cabinet body of Example 2 without the bottom plate and the partition plate;

[0108] Figure 53 is Figure 52 is an enlarged view at M in FIG. 12;

[0109] Figure 54 is a rear structural schematic diagram of the door frame of Example 2;

[0110] Figure 55 is Figure 54 is an enlarged view at N in FIG. 13;

[0111] Figure 56 is a structural schematic diagram of the back plate and the side plate of Example 2 in an unfolded state in a side view;

[0112] Figure 57 is Figure 56 is a sectional view schematic diagram at M1-M1 in FIG. 14;

[0113] Figure 58 is Figure 57 is an enlarged view at Q in FIG. 15;

[0114] Figure 59 is Figure 57 is an enlarged view at R in FIG. 16;

[0115] Figure 60 is a rear structural schematic diagram of the back plate and the side plate of Example 2 in an unfolded state;

[0116] Figure 61 is Figure 60 is an enlarged view at S in FIG. 17;

[0117] Figure 62 is a structural schematic diagram of the side plate of Example 2;

[0118] Figure 63 is Figure 62 is an enlarged view at T in FIG. 18;

[0119] Figure 64 is a structural schematic diagram of Example 2 without the upper cabinet door;

[0120] Figure 65 is Figure 64 is an enlarged view at V in FIG. 19;

[0121] Figure 66 is Figure 49 is an enlarged view at U in FIG. 20;

[0122] Figure 67 is an exploded structural schematic diagram of the anti-warping piece;

[0123] Figure 68 is Figure 64 is an enlarged view at W in FIG. 21;

[0124] Figure 69 is a schematic view of the rear structure of the embodiment 2 without the back plate;

[0125] Figure 70 is Figure 1-70 is an enlarged view of X in the middle;

[0126] In the figure, 10, cabinet body; 110, door frame; 111, lower edge frame; 1111, first lower bending part; 1112, step structure; 112, left edge frame; 113, upper edge frame; 1131, first upper bending part; 1132, blocking piece structure; 1133, first connecting part; 114, right edge frame; 1141, second rotating part; 1142, first hook segment; 1143, second hook segment; 1144, connecting segment; 1145, shielding segment; 1146, supporting segment; 120, side plate; 121, first rotating part; 122, first slot segment; 123, second slot segment; 124, first connecting edge; 125, first straight edge; 126, first bending edge; 127, first guiding edge; 128, second upper bending part; 129, second lower bending part; 130, back plate; 131, second connecting edge; 132, second straight edge; 133, second bending edge; 134, second guiding edge; 135, third upper bending part; 136, third lower bending part; 140, bottom plate; 141, first bottom bending part; 142, second bottom bending part; 143, third bottom bending part; 150, top plate; 151, first top bending part; 1511, second connecting part; 152, second top bending part; 153, third top bending part; 156, locking piece; 157, workbench; 160, layer plate; 170, partition plate; 180, anti-warping piece; 101, avoiding slot; 102, first assembling part; 103, bottom plate rotating shaft; 104, partition plate rotating shaft;

[0127] 20, cabinet door; 210, first door body; 211, convex edge; 220, second door body; 230, electronic lock; 201, door rotating shaft; 202, first guiding edge; 203, second edge; 204, third edge; 30, pulley. DETAILED DESCRIPTION

[0128] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0129] In the description of the present application, it needs to be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0130] In the description of the present application, it needs to be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can be explicitly or implicitly included one or more. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0131] In the description of the present application, it needs to be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0132] Referring to Figure 1-48 As shown, a folding secret cabinet is provided in the present application, mainly comprising a cabinet body 10 and a cabinet door 20, wherein the cabinet body 10 comprises a door frame 110, a side plate 120, a back plate 130, a bottom plate 140 and a top plate 150.

[0133] The cabinet door 20, the side plate 120 and the bottom plate 140 are hinged to the door frame 110 to be folded inwardly toward the door frame 110, the back plate 130 is detachably connected with the side plate 120, and the top plate 150 is detachably arranged at the cabinet top opening surrounded by the door frame 110, the side plate 120 and the back plate 130.

[0134] When the cabinet body 10 and the cabinet door 20 are assembled to form a secret space, the cabinet door 20 is used to open and close the secret space. The joints between the adjacent plates in the cabinet door 20, the door frame 110, the side plate 120, the back plate 130, the bottom plate 140 and the top plate 150 cannot directly pass through the secret space.

[0135] Specifically, the front side edge of the side plate 120 is hingedly connected to the side frame of the door frame 110 by a connecting assembly, the connecting assembly forms a joint between the side plate 120 and the side frame that cannot directly pass through the secret space and has a uniform width, and the connecting assembly limits the side plate 120 to rotate along a folding path to return to the folded state to be separated from the side frame.

[0136] The rear side edge of the side plate 120 is detachably connected to the side edge of the back plate 130 by an assembling assembly, the assembling assembly forms a joint between the side plate 120 and the back plate 130 that cannot directly pass through the secret space and has a uniform width, and the assembling assembly limits the back plate 130 to move along a predetermined path to be assembled with or disassembled from the side plate 120.

[0137] The side edge of the bottom plate 140 is hingedly connected to the side frame of the door frame 110 by a turning assembly, the inner side surface of the door frame 110, the side plate 120 and the back plate 130 are each provided with a lower bending portion, when the bottom plate 140 is turned to the unfolded state, it is lapped on the lower bending portion and the side edge abuts against the inner side surface of the back plate 130 and the side plate 120, the lower bending portion makes the joint between the bottom plate 140 and the door frame 110, the side plate 120 and the back plate 130 cannot directly pass through the secret space.

[0138] The upper bending portion is arranged on the inner side surface of the door frame 110, the side plate 120 and the back plate 130, the top plate 150 is detachably connected to the upper bending portion, and the upper bending portion makes the joint between the top plate 150 and the door frame 110, the side plate 120 and the back plate 130 cannot directly pass through the secret space.

[0139] The side edge of the cabinet door 20 is hingedly connected to the upper edge frame 113 and the lower edge frame 111 of the door frame 110 by an opening and closing assembly, the opening and closing assembly forms a joint between the cabinet door 20 and the side frame of the door frame 110 that cannot directly pass through the secret space. The upper edge frame 113 forms an upper shielding portion, and the lower edge frame 111 forms a lower shielding portion, the upper shielding portion and the lower shielding portion form a joint between the cabinet door 20 and the upper edge frame and the lower edge frame that cannot directly pass through the secret space.

[0140] It should be noted that the "uniform joint" in the text of the present application is defined as: the difference between the maximum value and the minimum value of the joint width is not more than 1mm.

[0141] For example, when the maximum width of a joint is 1.5mm, the minimum width is 0.9mm, the difference between the maximum value and the minimum value is 0.6mm, which is not more than 1mm, so this joint can be considered as a joint with uniform width.

[0142] The width of the joint can be measured using a caliper or an existing electronic device for gap spacing measurement.

[0143] The conventional folding cabinet in the prior art generally realizes the folding between adjacent panels through the hinges arranged at intervals. The joint between the adjacent panels can directly pass through the space in the cabinet at the position where no hinge is arranged when the cabinet is unfolded. Since the illegal personnel can easily insert a tool into the joint to pry open the cabinet from the outside or stick the files in the cabinet out of the joint through a tool, the conventional folding cabinet cannot meet the use and detection requirements of the security cabinet.

[0144] The folding security cabinet provided in the present application has at least the following beneficial effects:

[0145] Firstly, by arranging the connection relationship between the panels in a hinged and detachable form, the cabinet body can be folded and detached when not in use. The volume of the security cabinet in the folded state can be reduced to 25% of that in the unfolded state. On the basis of the same use space, the volume of the product in the intermediate processes such as production, turnover, warehousing, transportation, distribution and migration is greatly reduced, the warehousing and logistics costs are reduced, and the security cabinet product is more e-commerce friendly. Compared with the existing whole security cabinet which sells the unchangeable "cabinet space", the present application sells the changeable "security space".

[0146] Secondly, by arranging the cabinet door, side panel and bottom panel as an integral assembly hinged with the door frame, the user can quickly unfold the main part of the cabinet body without using tools during assembly. By arranging the back panel and top panel with a very large size difference as a detachable single part, the user can quickly identify the fitting relationship between the panels during assembly. Compared with the existing assembled security cabinet, the present application greatly improves the assembly convenience, reduces the assembly difficulty and improves the assembly efficiency.

[0147] Thirdly, by arranging the joint formed between the adjacent panels to not directly pass through the security space in the cabinet, the illegal personnel cannot insert a tool into the joint to pry open the cabinet from the outside or stick the files in the security space out of the joint through a tool. Compared with the existing conventional folding cabinet, the present application effectively guarantees the security performance and safety performance of the product, so that the security cabinet can meet the security detection requirements.

[0148] Embodiment 1

[0149] As shown in Figure 7-8 the folding security cabinet provided in the present embodiment mainly includes a cabinet body 10 and a cabinet door 20. The cabinet body 10 includes a door frame 110, a side panel 120, a back panel 130, a bottom panel 140, a top panel 150 and a layer panel 160.

[0150] Referring to Figure 9-13The door frame 110 comprises a lower frame 111, a left frame 112, an upper frame 113 and a right frame 114 connected in sequence (by welding) to form a rectangle.

[0151] Referring to Figure 13-14 The cabinet door 20 comprises a first door body 210 and a second door body 220. The left side of the first door body 210 is connected to the left side of the door frame 110 by a hinge assembly. The right side of the second door body 220 is connected to the right side of the door frame 110 by the hinge assembly, forming a left-right opening door structure for opening and closing the cabinet body 10 with a front opening. The cabinet door 20 is arranged in front of the door frame 110, and the cabinet door 20 can be turned inward to open and close the door frame 110.

[0152] Specifically, the hinge assembly comprises an avoiding groove 101, a door shaft 201 and a guide folded edge.

[0153] Taking the first door body 210 arranged on the left side as an example, the avoiding groove 101 is formed on the inner surface (right surface) of the left frame 112 in front of the door frame 110. The upper surface of the lower frame 111 and the lower surface of the upper frame 113 are provided with the door shaft 201 at a predetermined distance to the right of the avoiding groove 101. The door shaft 201 is connected to the bottom and top of the first door body 210, respectively.

[0154] The guide folded edge is formed on the left side of the first door body 210. The straight line distance between the door shaft 201 at the top and the upper shielding part (or the straight line distance between the door shaft 201 at the bottom and the lower shielding part) is the radius of a circle. The guide folded edge is located within the range of the circle, avoiding interference between the left side of the first door body 210 and the structure of the lower frame 111 and the upper frame 113 during rotation. It should be noted that in this embodiment, the straight line distance between the door shaft 201 at the top and the upper shielding part is equal to the straight line distance between the door shaft 201 at the bottom and the lower shielding part. Figure 12When the first door body 210 is turned to the closed state, the guide folded edge part extends into the avoiding groove 101, and the outer surface of the first door body 210 is attached to the groove wall of the avoiding groove 101. The joint between the first door body 210 and the left frame 112 is the gap between the outer surface of the first door body 210 and the groove wall of the avoiding groove 101. The avoiding groove 101 makes the joint not straight through the secret space, and the width of the joint is not greater than 2mm. In some detection standards, when the depth of the joint is greater than 25mm, it can be considered as a straight-through joint. Therefore, the size of the avoiding groove 101 can be reasonably designed to make the depth of the joint not greater than 25mm. The shape of the avoiding groove 101 is not limited to the shape shown in the drawings of the embodiment.

[0155] Specifically, referring to Figure 4 The first edge 202 is connected to the outer surface of the first door body 210 at a fifth included angle (the fifth included angle is an acute angle, about 80°), the second edge 203 is connected to the first edge 202 at a sixth included angle (the sixth included angle is an obtuse angle, about 140°), and the third edge 204 is parallel to the outer surface of the first door body 210. The guide folded edge part forms a multi-bending structure similar to a circular arc. In fact, the guide folded edge part can be designed in other shapes, such as a circular arc, as long as it is ensured that “the straight-line distance between the door shaft 201 located at the top and the upper shielding part (or the straight-line distance between the door shaft 201 located at the bottom and the lower shielding part) is the radius of the circle, and the guide folded edge part is located in the range of the circle”, that is, the left side of the first door body 210 can be prevented from interfering with the structure of the lower frame 111 and the upper frame 113 during rotation, and the design of the bending structure facilitates the processing and production of sheet metal parts.

[0156] Similarly, for the second door body 220 arranged on the right side, the avoiding groove 101 is formed at the front position of the inner surface (left surface) of the right frame 114, the upper surface of the lower frame 111 and the lower surface of the upper frame 113 are provided with the door rotating shaft 201 at a predetermined distance on the left side of the avoiding groove 101, and the door rotating shaft 201 is connected with the bottom and top of the second door body 220 respectively. The guide folding edge portion is formed on the right side edge of the second door body 220, and the straight line distance between the door rotating shaft 201 at the top and the upper shielding portion (or the straight line distance between the door rotating shaft 201 at the bottom and the lower shielding portion) is the radius of a circle, and the guide folding edge portion is located in the range of the circle, so as to avoid the interference between the right side edge of the second door body 220 and the structure of the lower frame 111 and the upper frame 113 during rotation. When the second door body 220 is turned to the closed state, the guide folding edge portion partially extends into the avoiding groove 101, and the outer surface of the second door body 220 is attached to the groove wall of the avoiding groove 101. The joint between the second door body 220 and the left frame 112 is the gap between the outer surface of the second door body 220 and the groove wall of the avoiding groove 101, the avoiding groove 101 makes the joint not straight through the secret space and the width of the joint is not greater than 2mm, and the depth of the joint can be not greater than 25mm by reasonably designing the size of the avoiding groove 101.

[0157] Referring to Figure 5 , the right side edge of the first door body 210 is provided with a convex edge 211, when the cabinet door is in the closed state, as shown in Figure 4 , the left side edge of the second door body 220 is overlapped on the convex edge 211, so that the joint between the second door body 220 and the first door body 210 cannot straight through the secret space and the width of the joint is not greater than 2mm, and the depth of the joint can be not greater than 25mm by reasonably designing the size of the door body. It should be understood by those skilled in the art that the convex edge 211 can be arranged on the left side edge of the second door body 220, and the right side edge of the first door body 210 is overlapped on the convex edge 211 when the door is closed; or the right side edge of the first door body 210 and the left side edge of the second door body 220 are respectively provided with convex edge structures that can be overlapped and matched with each other when the door is closed.

[0158] Referring to Figure 14-17 , the first door body 210 and the second door body 220 are further provided with an electronic lock 230, and the electronic lock 230 can adopt a structure on the market that meets the detection requirements of the secret cabinet. Since the improvement of the present application does not involve the electronic lock 230, it will not be described again.

[0159] When the first door body 210 and the second door body 220 are flipped to the closed state, the front surfaces of the first door body 210 and the second door body 220 do not protrude from the front surface of the door frame 110, effectively reducing the volume after folding and improving the aesthetic appearance.

[0160] Referring to Figure 17 The side plate 120 is provided with two plates, one of which is hinged by a connecting assembly between the front side edge of the side plate 120 and the left frame 112, and the other is hinged by a connecting assembly between the front side edge of the side plate 120 and the right frame 114. Specifically, the side plate 120 is arranged at the rear of the door frame 110, and the side plate 120 can be folded and folded on the rear side of the door frame 110 towards the door frame 110.

[0161] The right frame 114 and the right side plate 120 are taken as examples for description below.

[0162] The connecting assembly includes a first rotating part 121, a second rotating part 1141, a first limiting part, a second limiting part, and an external connecting part.

[0163] The first rotating part 121 is arranged on the inner side of the mating surface of the front side edge of the side plate 120 (the inner side refers to the side close to the cabinet 10), and the second rotating part 1141 is arranged on the inner side of the mating surface of the right frame 114. The second rotating part 1141 and the first rotating part 121 are mutually matched to form a hinge, so that the side plate 120 and the right frame 114 are rotationally connected. In this embodiment, the upper part, the middle part, and the lower part of the side plate 120 are respectively provided with one first rotating part 121, and the second rotating part 1141 and the first rotating part 121 are correspondingly arranged, but those skilled in the art should understand that the rotating part in the middle part is not necessarily provided. In this embodiment, the first rotating part 121 and the second rotating part 1141 are a pair of hinge structures, but those skilled in the art should understand that the first rotating part 121 and the second rotating part 1141 can be other structures that can realize a rotating connection relationship.

[0164] The first limiting part is arranged on the mating surface of the front side edge of the side plate 120 and extends vertically along the side plate 120, and the length of the first limiting part is consistent with the length of the mating surface of the side plate 120. The second limiting part is arranged on the mating surface of the right frame 114 and extends vertically along the right frame 114, and the length of the second limiting part is consistent with the length of the mating surface of the right frame 114.

[0165] Referring to Figure 17The first limiting part is a limiting groove, which includes a first groove segment 122 and a second groove segment 123 that are connected to each other. The first groove segment 122 is perpendicular to the front side surface of the side panel 120, and the second groove segment 123 forms a first angle with the first groove segment 122 (in this embodiment, the first angle is approximately 135°), and the second groove segment 123 faces outward from the cabinet 10, thereby forming a preset channel with a bend between the first groove segment 122 and the second groove segment 123. The first groove segment 122 forms the rear section of the preset channel, and the second groove segment 123 forms the front section of the preset channel. In this embodiment, the limiting groove is formed by a first sheet metal part welded to the side panel 120 ( Figure 17 The first sheet metal part (represented by black dots) and the bent structure of the side plate 120 are formed together.

[0166] See Figure 17 The second limiting part is a limiting hook, which includes a first hook segment 1142, a second hook segment 1143, and a connecting segment 1144 connected together. In this embodiment, the limiting hook is composed of a second sheet metal part ( Figure 17 The second sheet metal part (represented by honeycomb filling) is formed, and the connecting segment 1144 is L-shaped and connected to the first hook segment 1142. The connecting segment 1144 is used for welding to the right side frame 114. The first hook segment 1142 and the mating surface of the right side frame 114 form a second included angle (approximately 110° in this embodiment) and are inclined towards the inward of the cabinet 10. The second hook segment 1143 is parallel to the mating surface of the right side frame 114 and extends towards the inward of the cabinet 10. However, those skilled in the art should understand that the limiting hook can be directly formed by the bending structure of the right side frame 114. When this is the case, the connecting segment 1144 is not necessary, and the first hook segment 1142 and the second hook segment 1143 mainly cooperate with the limiting groove.

[0167] In other embodiments, the limiting groove of the present application can also have another design: the sheet metal part is directly bent once to form a limiting groove with an acute angle, the shape of the limiting groove is equivalent to deleting the first groove segment 122 of the present embodiment, directly bending to form the second groove segment 123, and when used, the front end of the limiting hook is directly inserted into the acute angle corner to realize the function of the limiting groove of the present application. However, directly bending an acute angle is more difficult for sheet metal processing, and the matching tolerance of this shape is lower, the limiting hook must be accurately inserted into the acute angle corner, otherwise matching errors may occur, which may result in the limiting function cannot be realized, so the limiting groove has higher requirements for processing precision. In contrast, the structure of the limiting groove of the present application is first bent once to form the first groove segment 122 with a right angle, and then bent a second time on the basis of the first groove segment 122 to form the second groove segment 123 with an obtuse angle. The limiting groove of the present application has low processing difficulty, and because the first groove segment 122 has a certain depth, a larger space is formed in the groove to facilitate the subsequent matching of the limiting hook, so the limiting groove of the present application has higher matching tolerance and is not prone to matching errors, and has lower requirements for processing precision.

[0168] Referring to Figure 12 The outer connecting portion is arranged at a position close to the outer side of the cabinet 10 on the mating surface of the right side frame 114, and the length of the outer connecting portion is not less than the length of the mating surface of the right side frame 114. The outer connecting portion includes a shielding segment 1145 and a supporting segment 1146 connected together. The shielding segment 1145 is perpendicular to the rear surface of the right side frame 114, and when the side plate 120 is unfolded to the first limiting portion and the second limiting portion are matched (i.e., the side plate 120 is in an unfolded state), the shielding segment 1145 abuts against the outer surface of the side plate 120, shields the joint between the mating surface of the side plate 120 and the mating surface of the right side frame 114, and forms a new appearance surface joint with the outer surface of the side plate 120. The supporting segment 1146 is connected at an angle with the shielding segment 1145, so that the shielding segment 1145, the supporting segment 1146 and the rear surface of the right side frame 114 form a structure with a right-angled triangle cross section, thereby increasing the structural strength and improving the aesthetics of the cabinet.

[0169] Figure 17 In the left side frame 112, the rear surface of the left side frame 112 is also provided with the second limiting portion and the outer connecting portion, and for the purpose of clear structure display, the second limiting portion and the outer connecting portion arranged on the rear surface of the left side frame 112 are marked with the same set of reference numerals as the second limiting portion and the outer connecting portion arranged on the right side frame 114.

[0170] In the process of flipping and unfolding the side plate 120, the limiting hook is inserted into the limiting groove, and when the side plate 120 is flipped to the unfolded state (as shown in FIG. 6B), the limiting hook is located in the limiting groove, and the side plate 120 is in the unfolded state. Figure 18-22As shown in FIG. 1, the side plate 120 is parallel to the right frame 114, the front end of the second hook section 1143 abuts against the inner wall of the first slot section 122, and the shielding section 1145 abuts against the outer surface of the side plate 120. In other embodiments, the inner wall of the first slot section 122 can be provided with a clamping hole, and the front end of the second hook section 1143 can be provided with a tab. When the front end of the second hook section 1143 abuts against the inner wall of the first slot section 122, the tab is clamped into the clamping hole to form further limiting.

[0171] The connecting assembly provided in the embodiments has at least the following beneficial effects:

[0172] First, the joint between the fitting surface of the side plate 120 and the fitting surface of the right frame 114 cannot directly pass through the secure space and has a uniform width, by the cooperation of the bending structure of the limiting hook and the limiting slot. Further, the joint between the side plate 120 and the right frame 114 is bent more by the new appearance surface joint formed by the external connection part, which strengthens the guarantee that the joint cannot directly pass through the secure space and is beneficial to improving the aesthetic appearance of the appearance surface.

[0173] Second, the joint between the fitting surface of the side plate 120 and the fitting surface of the right frame 114 has a width of not more than 2 mm, by the abutting force generated when the limiting hook cooperates with the limiting slot, which is beneficial to preventing the side plate 120 from being partially deformed when subjected to external force, so as to ensure that the width of the joint always remains uniform and does not appear to be locally enlarged. Further, the abutting force makes the outer surface of the side plate 120 tightly abut against the shielding section 1145, so that the new appearance surface joint is more likely to have a width of not more than 2 mm.

[0174] Thirdly, the cooperation of the limiting groove and the limiting hook can limit the side plate 120 to rotate back to the folding state along the folding path to disengage from the door frame 110. Specifically, the forward rotation along the folding path is the folding state, and the reverse rotation along the folding path is the folding state. When the side plate 120 is folded to the unfolded state, the second limiting part cooperates with the first limiting part to allow the side plate 120 to rotate back to the folding state along the folding path, and not allow the side plate 120 to move along other paths. Due to the above-mentioned limitation of the limiting part, when the rotation connection between the second rotating part 1141 and the first rotating part 121 fails, the only way for the side plate 120 to disengage from the door frame 110 is to rotate back to the folding state along the folding path. In fact, when the folding cabinet is in the normal unfolded use state, the reverse degree of freedom of the folding path is generally limited (limited by the bottom plate 140), so even in the extreme case of failure of the rotating connection structure, the cooperating limiting parts can still ensure that the side plate 120 and the door frame 110 remain connected, and direct scattering does not occur, further ensuring the safety performance of the folding cabinet.

[0175] Referring to Figure 18 , the assembly surface of the rear side edge of the side plate 120 and the side edge of the back plate 130 are detachably connected by an assembly component, Figure 22 is a structural schematic view of the assembled state (also referred to as the unfolded state herein) of the back plate 130 and the side plate 120.

[0176] The assembly component includes a first bending part and a second bending part.

[0177] The first bending part is arranged on the assembly surface of the rear side edge of the side plate 120 and extends vertically, and the length of the first bending part is consistent with the length of the assembly surface of the side plate 120. The second bending part is arranged on the assembly surface of the side edge of the back plate 130 and extends vertically, and the length of the second bending part is consistent with the length of the assembly surface of the back plate 130. The side edges of the back plate 130 are provided with the second bending part to cooperate and connect with the side plates 120 on the left and right sides.

[0178] Referring to Figure 21-22, the first bending part comprises a first connecting edge 124, a first straight edge 125, a first folding edge 126 and a first guide edge 127 connected in sequence. The first connecting edge 124 is connected perpendicularly with the side plate 120 to form a bending and extend towards the back plate 130, the first straight edge 125 is connected perpendicularly with the first connecting edge 124 to form a bending and extend forward, the first folding edge 126 is connected perpendicularly with the first straight edge 125 to form a bending and extend towards the side plate 120, and the first guide edge 127 is connected with the first folding edge 126 at a third included angle to form a bending and extend towards the first connecting edge 124. The third included angle is between 95°-125°, and in the embodiment, the third included angle is 120°.

[0179] Referring to Figure 22 , the second bending part comprises a second connecting edge 131, a second straight edge 132, a second folding edge 133 and a second guide edge 134 connected in sequence. The second connecting edge 131 is connected perpendicularly with the back plate 130 to form a bending and extend forward, the second straight edge 132 is connected perpendicularly with the second connecting edge 131 to form a bending and extend towards the side plate 120, the second folding edge 133 is connected perpendicularly with the second straight edge 132 to form a bending and extend backward, and the second guide edge 134 is connected with the second folding edge 133 at a fourth included angle to form a bending and extend towards the second connecting edge 131. The fourth included angle is between 90°-110°, and in the embodiment, the fourth included angle is 100°.

[0180] In the embodiment, the third included angle between the first guide edge 127 and the first folding edge 126 is an obtuse angle, which can make the opening of the first bending part (the distance between the first guide edge 127 and the inner surface of the side plate 120) first wide and then narrow, has a mounting guide effect, and facilitates the user to align and insert the second bending part for installation. After the second bending part is installed in place, the two ends of the second guide edge 134 abut against the first guide edge 127 and the inner surface of the side plate 120, respectively, so that the connection is reliable. Moreover, it is convenient for the processing of the bending part.

[0181] Referring to Figure 48 When the side plate 120 and the back plate 130 are in the unfolded state, the first bending part and the second bending part cooperate with each other, the end of the second guide edge 134 abuts against the end of the first guide edge 127, so that the joint between the first straight edge 125 and the second connecting edge 131 is reduced, and specifically, the joint is not greater than 2mm. The joint has a bending, and when the length of the second connecting edge 131 is less than 25mm, the depth of the joint can be guaranteed to be not greater than 25mm.

[0182] Furthermore, the first folded edge 126 abuts against the second straight edge 132, the second folded edge 133 abuts against the inner surface of the side plate 120, and the outer surface of the first connecting edge 124 is flush with the outer surface of the back plate, thereby forming an aesthetically pleasing and stable fastening structure.

[0183] First, the assembly component proposed in this application includes a pair of snap-fit ​​structures respectively disposed on the rear side of the side plate 120 and the side of the back plate 130 and extending axially. The snap-fit ​​can be achieved by pushing the back plate 130 towards the side plate 120 along the installation path. The assembly process does not require the use of any tools and can be completed by hand. It also does not require the use of screws or other connectors. The structure is simple, the operation is simple, the assembly difficulty is low, and the resulting board joint width is uniform.

[0184] Second, the fastening structure proposed in this application restricts the back plate 130 to move only along the installation path to disengage. Specifically, let the forward direction of the installation path be... Figure 23-32 Pushing the back panel 130 (in the direction indicated by the middle arrow) into the assembled state allows it to be pulled out along the reverse of the installation path to transition to the disassembled state. When the back panel 130 and the side panel 120 are assembled (i.e., the folding cabinet is in the unfolded state), the first and second bending parts cooperate with each other, allowing the back panel 130 to be pulled out along the reverse of the installation path to return to the disassembled state only; the back panel 130 is not allowed to move along other paths. In practice, when the folding cabinet is in normal use, the reverse degree of freedom of the installation path is restricted (generally by the base plate 140). Therefore, even without screws or other connecting parts, the reliability of the assembly relationship between the two back panels 130 and the side panels 120 can be guaranteed, thereby effectively ensuring the security performance of the safe.

[0185] Third, the assembly components proposed in this application can form a uniformly wide seam between the back plate 130 and the side plate 120 that does not extend directly to the secure space, and the width of the seam is no more than 2mm. By reasonably setting the dimensions of the bending part, the depth of the seam can be no more than 25mm, so as to meet the testing requirements of the secure cabinet.

[0186] The lower surface of the back panel 130 is provided with casters 30, and the lower surface of the lower frame 111 is also provided with casters 30, which together provide support for the cabinet 10 and facilitate the user to move the safe.

[0187] See Figure 38-40 as well as Figure 31The top plate 150 is detachably arranged at the top opening of the cabinet body surrounded by the door frame 110, the side plate 120 and the back plate 130. The upper bending parts are arranged at the upper part of the inner side of the door frame 110, the side plate 120 and the back plate 130, so that the joint between the top plate 150 and the door frame 110, the side plate 120 and the back plate 130 cannot pass through the secret space.

[0188] Specifically, the top plate 150 mainly comprises a table plate 155 and a top bending part arranged at the bottom of the table plate 155.

[0189] Specifically, the first upper bending part 1131 is arranged at the inner side (rear side) of the upper frame 113, the second upper bending part 128 is arranged at the inner side of the side plate 120, and the third upper bending part 135 is arranged at the inner side of the back plate 130. Correspondingly, the top bending part corresponding to the first upper bending part 1131 is the first top bending part 151, the top bending part corresponding to the second upper bending part 128 is the second top bending part 152, and the top bending part corresponding to the third upper bending part 135 is the third top bending part 153.

[0190] In the drawings of this part, Figure 32 and Figure 31 Mainly for showing the top bending part, Figure 30 for Figure 32 The two ends of the J1-J1 section view are shown in the schematic view, and the middle part of the J1-J1 section view is omitted and represented by a wavy dashed line; Figure 30 for Figure 39 The two ends of the H1-H1 section view are shown in the schematic view, and the middle part of the H1-H1 section view is omitted and represented by a wavy dashed line.

[0191] Referring to Figure 29 The third upper bending part 135 forms a joint 1351 towards the inside of the cabinet 10, and the third top bending part 153 correspondingly forms a plug for inserting into the joint 1351. The specific structure of the third top bending part 153 can be referred to Figure 28-29 When installed, the plug is inserted into the joint 1351 obliquely, and the basic positioning is completed.

[0192] Referring to Figure 38, the first upper bending part 1131 is fixedly connected with the first top bending part 151 by a locking piece. In the embodiment, the locking piece comprises a first connecting part 1133 and a second connecting part 1511, the first connecting part 1133 is arranged on the first upper bending part 1131, and the second connecting part 1511 is arranged on the first top bending part 151. When the second connecting part 1511 cooperates with the first connecting part 1133, the first upper bending part 1131 is fixedly connected with the first top bending part 151, and the third upper bending part 135 is inserted with the third top bending part 153, so that the top plate 150 is connected to the top opening of the cabinet body formed by the door frame 110, the side plate 120 and the back plate 130 through two-side fixation. In the embodiment, the second connecting part 1511 and the first connecting part 1133 are in screw structure, and the second connecting part 1511 and the first connecting part 1133 are both shown as round holes in the figure to indicate the specific arrangement positions. Those skilled in the art can understand that the second connecting part 1511 and the first connecting part 1133 can have other structural forms.

[0193] Referring to Figure 14 , the first upper bending part 1131 forms a supporting plate structure towards the inside of the cabinet body 10 and parallel to the table plate 155, and the specific structure of the first upper bending part 1131 can be referred to Figure 29 . The first top bending part 151 is correspondingly formed with a platform structure matched with the supporting plate structure, and the specific structure of the first top bending part 151 can be referred to Figure 40 . When the top plate 150 is installed on the top of the door frame 110, the side plate 120 and the back plate 130, the first upper bending part 1131 corresponds to (contacts or does not contact) the first top bending part 151, and the formed joint cannot directly pass through the secret space.

[0194] Referring to Figure 14 , the second upper bending part 128 forms a U-shaped plate structure towards the inside of the cabinet body 10, and the specific structure of the second upper bending part 128 can be referred to Figure 29 . The second top bending part 152 is correspondingly formed with a platform for being placed on the supporting plate, and the second top bending part 152 can be an L-shaped bending structure, and the specific structure of the second top bending part 152 can be referred to Figure 49 . When the top plate 150 is installed on the top of the door frame 110, the side plate 120 and the back plate 130, the second upper bending part 128 corresponds to (contacts or does not contact) the second top bending part 152, and the formed joint cannot directly pass through the secret space.

[0195] In this embodiment, the top plate 155 and the top bending part at the bottom of the top plate 155 are integrally formed by sheet metal. The size of the top plate 155 is substantially equal to the size of the cabinet top opening surrounded by the side plate 120, the back plate 130 and the door frame 110, and the top plate 155 is embedded in the cabinet top opening (as shown in Embodiment 2). The joint between the top plate 155 and the side plate 120, the back plate 130 and the door frame 110 cannot directly pass through the secret space. Figure 33

[0196] The top plate 150 can further include a workbench 157 made of wood or metal material. The workbench 157 is arranged on the top plate 155, and the size of the workbench 157 is greater than the size of the cabinet top opening surrounded by the side plate 120, the back plate 130 and the door frame 110, as shown in Embodiment 2. Figure 33-37 When the top plate 150 is installed on the top of the door frame 110, the side plate 120 and the back plate 130, the workbench 157 protrudes from the top of the door frame 110, the side plate 120 and the back plate 130. It should be understood by those skilled in the art that the workbench 157 is not necessarily arranged.

[0197] Referring to Figure 14 , the front end of the bottom plate 140 is hinged to the side frame of the door frame 110 through a turnover assembly to be folded inwardly toward the door frame 110. The inner side of the door frame 110, the side plate 120 and the back plate 130 is provided with a lower bending part. When the bottom plate 140 is turned to the unfolded state, it is lapped on the lower bending part and the side edge is abutted with the inner side of the back plate 130 and the side plate 120. The lower bending part makes the joint between the bottom plate 140 and the door frame 110, the side plate 120 and the back plate 130 cannot directly pass through the secret space, and due to the abutment, the joint width is not greater than 2mm. When the bottom plate 140 is in the unfolded state, the reverse degree of freedom of the installation path of the back plate 130 is limited, so that the back plate 130 cannot move into the cabinet 10, and the reverse degree of freedom of the folding path of the side plate 120 is limited, so that the side plate 120 cannot be turned inwardly into the cabinet 10.

[0198] Specifically, the turnover assembly includes a bottom plate shaft 103 and an axle hole 146. Referring to Figure 34 , the bottom plate shaft 103 is arranged at the inner side of the left frame 112 and the right frame 114 respectively. Figure 36 , the front end of the bottom plate 140 is hinged to the side frame of the door frame 110 through a turnover assembly to be folded inwardly toward the door frame 110. The inner side of the door frame 110, the side plate 120 and the back plate 130 is provided with a lower bending part. When the bottom plate 140 is turned to the unfolded state, it is lapped on the lower bending part and the side edge is abutted with the inner side of the back plate 130 and the side plate 120. The lower bending part makes the joint between the bottom plate 140 and the door frame 110, the side plate 120 and the back plate 130 cannot directly pass through the secret space, and due to the abutment, the joint width is not greater than 2mm. When the bottom plate 140 is in the unfolded state, the reverse degree of freedom of the installation path of the back plate 130 is limited, so that the back plate 130 cannot move into the cabinet 10, and the reverse degree of freedom of the folding path of the side plate 120 is limited, so that the side plate 120 cannot be turned inwardly into the cabinet 10.

[0199] ​The bottom plate 140 comprises a panel 145 and a bottom bend portion arranged at the bottom edge of the panel 145. When the bottom plate 140 is in the unfolded state, the bottom bend portion overlaps the lower bend portion.

[0200] The lower bend portion arranged at the rear side of the lower frame 111 is denoted as a first lower bend portion 1111, the lower bend portion arranged at the inner side of the lower part of the side plate 120 is denoted as a second lower bend portion 129, and the lower bend portion arranged at the inner side of the lower part of the back plate 130 is denoted as a third lower bend portion 136. The bottom bend portion corresponding to the first lower bend portion 1111 is denoted as a first bottom bend portion 141, the bottom bend portion corresponding to the second lower bend portion 129 is denoted as a second bottom bend portion 142, and the bottom bend portion corresponding to the third lower bend portion 136 is denoted as a third bottom bend portion 143.

[0201] In the drawings of this part, since Figure 37 and Figure 36 mainly to show the bottom bend portion, therefore Figure 35 is Figure 37 the two ends of the sectional view at L1-L1 are shown, and the middle part of the sectional view at L1-L1 is omitted and represented by wavy dashed lines; Figure 35 is Figure 41 the two ends of the sectional view at K1-K1 are shown, and the middle part of the sectional view at K1-K1 is omitted and represented by wavy dashed lines.

[0202] Referring to Figure 7 , the first lower bend portion 1111 can be an L-shaped bend structure, and is provided with a clamping groove 11111 facing the inside of the cabinet 10. The specific structure of the first lower bend portion 1111 can be referred to Figure 14 and Figure 34 . The first bottom bend portion 141 correspondingly forms a card inserted into the clamping groove, and the specific structure of the first bottom bend portion 141 can be referred to Figure 42 .

[0203] Referring to Figure 43 , the third lower bend portion 136 forms a z-shaped bend support structure facing the inside of the cabinet 10. The third bottom bend portion 143 can be an inverted L-shaped bend structure, which is buckled into a groove formed between the third lower bend portion 136 and the inner side of the back plate 130, and the third lower bend portion 136 is supported on the lower surface of the bottom plate 140.

[0204] Referring to Figure 24 , the second lower bend portion 129 forms a supporting plate structure facing the inside of the cabinet 10, and the second bottom bend portion 142 correspondingly forms a supporting structure for overlapping on the supporting plate structure. The second bottom bend portion 142 can be a triangular plus straight plate-shaped bend structure.

[0205] The inner surface of the back plate 130 or the side plate 120 is provided with an anti-upturning part corresponding to both sides of the rear end of the bottom plate 140, which is used to limit the upward overturning of the bottom plate 140 in the unfolded state, so as to avoid the overturning of the bottom plate 140 to the folded state by the force applied to the bottom of the bottom plate 140 from the outside of the cabinet body 10, thereby opening the cabinet body 10 from the bottom. The anti-upturning part can be a screw or a bayonet structure.

[0206] Referring to Figure 23 When the bottom plate 140 is in the unfolded state, the front side edge thereof forms the lower shielding part together with the lower frame 111, and the lower shielding part is a stepped structure 1112 having a bend. When the cabinet door 20 is in the closed state, the lower joint between the lower edge of the cabinet door 20 and the lower frame 111 corresponds to the stepped structure 1112, so that the lower joint cannot directly pass through the secret space. By setting the size of the door body and the position of the stepped structure 1112, the width of the lower joint can be not greater than 2 mm and the depth can be not greater than 25 mm.

[0207] Referring to Figure 1-3 The lower surface of the upper frame 113 of the door frame 110 is provided with the upper shielding part, which is a baffle structure 1132. The upper joint between the upper edge of the cabinet door 20 and the upper frame 113 corresponds to the baffle structure 1132, so that the upper joint cannot directly pass through the secret space. By setting the size of the door body and the position of the baffle structure 1132, the width of the upper joint can be not greater than 2 mm and the depth can be not greater than 25 mm.

[0208] Referring to Figure 14 and Figure 2 The inner side surfaces of the back plate 130 and the side plate 120 are vertically spaced apart and provided with a plurality of first assembly parts 102, and the four corners of the layer plate 160 are respectively provided with second assembly parts 161 matched with the first assembly parts, so that the user can install the layer plate 160 at different heights in the interior of the cabinet body 10 according to actual use needs, so as to divide the space in the cabinet into a multi-layer structure. The first assembly part 102 and the second assembly part 161 can have different structural forms. For example, in the embodiment, the first assembly part 102 provided on the back plate 130 is a groove, and the second assembly part 161 provided on the two ends of the front side edge of the layer plate 160 is a convex part. The first assembly part 102 provided on the side plate 120 is a clamping groove formed by two convex platforms, and the second assembly part 161 provided on the two ends of the front side edge of the layer plate 160 is a bent part.

[0209] Referring to Figure 4The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part. Figure 44 The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0210] The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0211] The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part. Figure 45-46 The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0212] The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part. Figure 47 The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part. Figure 48 The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part. Figure 48 The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part. Figure 49-55 The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0213] The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0214] The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0215] The folding security cabinet is divided into three basic parts and optional parts before leaving the factory, the door frame 110, the side plate 120, the bottom plate 140 and the cabinet door 20 are a basic part, the back plate 130 is a basic part, the top plate 150 is a basic part, and the layer plate 160 is an optional part.

[0216] Example 2

[0217] Referring to Figure 49-55The difference between the embodiment and embodiment 1 is that a horizontal frame 115 parallel to the lower frame 111 is arranged at the predetermined height of the side frame of the door frame 110, and the cabinet 10 further comprises a partition plate 170, which cooperates with the horizontal frame 115 to divide the cabinet 10 into two upper and lower secret spaces, and each secret space is independently opened and closed by a cabinet door 20. The joints between the adjacent plates in the cabinet door 20, the door frame 110, the side plate 120, the back plate 130, the bottom plate 140, the partition plate 170 and the top plate 150 cannot directly pass through the secret space. The partition plate 170 and the horizontal frame 115 can be provided with multiple groups to divide the space in the cabinet 10 into a multi-layer structure. Hereinafter, the application will be described in detail by taking the example of arranging one group of partition plates 170 and horizontal frames 115 to divide the space in the cabinet 10 into an upper and lower layer structure.

[0218] Referring to Figure 49 This embodiment is a folding secret cabinet, mainly comprising a cabinet 10 and a cabinet door 20. In the following description, the directions of up, down, left, right, front and back are based on the front view of the cabinet 10 as the reference. Figure 49

[0219] Referring to Figure 54 The cabinet 10 comprises a door frame 110, a side plate 120, a back plate 130, a bottom plate 140, a top plate 150, a layer plate 160 and a partition plate 170.

[0220] Referring to Figure 49-50 The door frame 110 comprises a lower frame 111, a left frame 112, an upper frame 113 and a right frame 114 connected in sequence (by welding) to form a rectangle, and a horizontal frame 115 parallel to the lower frame 111 is arranged at the middle position of the left frame 112 and the right frame 114.

[0221] Referring to Figure 54-55 An upper cabinet door is arranged between the upper frame 113 and the horizontal frame 115, and a lower cabinet door is arranged between the horizontal frame 115 and the lower frame 111. The structure of the cabinet door 20 is consistent with that of embodiment 1, comprising a first door body 210, a second door body 220 and an electronic lock 230.

[0222] Referring to Figure 55 For the upper cabinet door arranged between the upper frame 113 and the horizontal frame 115, the side edges of the first door body 210 and the second door body 220 are hingedly connected with the upper frame 113 and the horizontal frame 115 through the opening and closing assembly, and the structure of the opening and closing assembly is consistent with that of embodiment 1. Figure 55 ​In this embodiment, the position of the door hinge 201 is represented by the upper shaft hole 1151 of the horizontal frame 115. For the lower cabinet door arranged between the horizontal frame 115 and the lower frame 111, the side edges of the first door body 210 and the second door body 220 are hingedly connected to the horizontal frame 115 and the lower frame 111 by the opening and closing assembly, which has the same structure as that of the opening and closing assembly in Embodiment 1. Figure 34-37 In this embodiment, the position of the door hinge 201 is represented by the lower shaft hole 1152 of the horizontal frame 115.

[0223] The structure and mounting mode of the partition plate 170 are the same as those of the bottom plate 140, and the structure of the partition plate 170 can be referred to in Embodiment 1. Figure 55 The front end of the partition plate 170 is hingedly connected to the left frame 112 and the right frame 114 by the turnover assembly to be folded inwardly toward the door frame 110, and the structure of the turnover assembly is the same as that of the turnover assembly in Embodiment 1. Figure 52-53 In this embodiment, the partition plate hinge 104 (only the shaft hole is shown in the figure) is marked, which has the same function as the bottom plate hinge 103.

[0224] As shown in Figure 49 , the back plate 130, the inner side surface of the side plate 120, the upper part of the rear side surface of the horizontal frame 115, and the upper part of the rear side surface of the horizontal frame 115 are provided with lower bending parts. Specifically, the lower bending part provided on the upper part of the rear side surface of the horizontal frame 115 is referred to as the fourth lower bending part 1153, the lower bending part provided on the inner side surface of the side plate 120 is referred to as the fifth lower bending part 1291, and the lower bending part provided on the inner side surface of the back plate 130 is referred to as the sixth lower bending part 1361. The fourth lower bending part 1153 has the same structure as the first lower bending part 1111, the fifth lower bending part 1291 has the same structure as the second lower bending part 129, the sixth lower bending part 1361 has the same structure as the third lower bending part 136, and the partition plate 170 cooperates with the bottom bending part in the same manner as in Embodiment 1, which will not be described herein.

[0225] As shown in Figure 55 , when the partition plate 170 is in the unfolded state, the front side edge thereof cooperates with the horizontal frame 115 to form a lower horizontal step 1154, which has a bending structure and is the same as the structure of the step structure 1112. When the upper cabinet door between the upper frame 113 and the horizontal frame 115 is in the closed state, the lower horizontal joint between the lower edge of the cabinet door 20 and the horizontal frame 115 corresponds to the lower horizontal step 1154, so that the lower horizontal joint cannot directly pass through the upper secret space. By adjusting the size of the door body and the position of the lower horizontal step 1154, the width of the lower joint can be not greater than 2 mm and the depth can be not greater than 25 mm.

[0226] As shown inFigure 49 The inner surface of the lower part of the horizontal frame 115 is provided with an upper horizontal blocking piece 1155. When the lower cabinet door hinged between the horizontal frame 115 and the lower frame 111 is in the closed state, the upper horizontal joint between the upper edge of the cabinet door 20 and the horizontal frame 115 corresponds to the upper horizontal blocking piece 1155, so that the upper horizontal joint cannot directly pass through the secret space. By setting the size of the door body and the position of the upper horizontal blocking piece 1155, the width of the upper horizontal joint can be not greater than 2 mm and the depth can be not greater than 25 mm.

[0227] The inner surface of the back plate 130 or the side plate 120 is provided with an anti-upturning piece corresponding to both sides of the rear end of the partition plate 170. The anti-upturning piece is used to limit the upward turning of the partition plate 170 in the unfolded state. The anti-upturning piece can be a screw or a bayonet structure.

[0228] The structure and installation method of the top plate 150 of the embodiment are the same as those of embodiment 1. Since the folding cabinet of the embodiment is generally higher in height, work is generally not performed on the upper surface of the top plate 150, and therefore the top plate 150 generally does not include a workbench 157, but only includes a table plate 155 and a top bending portion, so that the upper surface of the top plate 150 is flush with the top surface of the side plate 120, the back plate 130 and the door frame 110 after the top plate 150 is installed, as shown in Figure 59

[0229] The assembly method of the folding secret cabinet of the embodiment is similar to that of embodiment 1, and the difference is that the bottom plate 140 and the partition plate 170 are unfolded at the same time in the third step. Specifically, the lower cabinet door is opened, the bottom plate 140 is turned to the unfolded state from the front opening of the cabinet body 10 and the anti-upturning piece is arranged; the upper cabinet door is opened, the partition plate 170 is turned to the unfolded state from the front opening of the cabinet body 10 and the anti-upturning piece is arranged.

[0230] Embodiment 3

[0231] The difference between the embodiment and embodiments 1 and 2 is the specific structure of the first bending portion and the second bending portion. The structure of the first bending portion and the second bending portion of the embodiment can be applied to the folding cabinet structures of embodiments 1 and 2. Hereinafter, the folding cabinet of embodiment 2 is taken as an example for description.

[0232] Referring to Figure 60-61 ​The first bending part comprises a first connecting edge 124, a first straight edge 125, a first folding edge 126, a first guide edge 127 and a plurality of first flanges 1271 connected in sequence. The first bending part of the embodiment is consistent with the first bending part of the first embodiment except the first flanges 1271, that is, the first connecting edge 124 is connected perpendicularly to the side plate 120 and extends towards the back plate 130, the first straight edge 125 is connected perpendicularly to the first connecting edge 124 and extends forward, the first folding edge 126 is connected perpendicularly to the first straight edge 125 and extends towards the side plate 120, and the first guide edge 127 forms a first obtuse angle (about 100° in the embodiment) with the first folding edge 126 and extends towards the first connecting edge 124. The first flanges 1271 are connected to the first guide edge 127, and the cross-sectional shape of the first flanges 1271 is similar to J type, the hook segment of which is connected to the first guide edge 127, and the straight segment of which extends towards the first folding edge 126 in parallel to the first guide edge 127. See Figure 58-59 The plurality of first flanges 1271 are arranged along the axial direction of the first guide edge 127 at intervals.

[0233] See Figure 58-59 The second bending part comprises a second connecting edge 131, a second straight edge 132, a second folding edge 133, a second guide edge 134 and a plurality of second flanges 1341 connected in sequence. The second bending part of the embodiment is consistent with the second bending part of the first embodiment except the second flanges 1341, that is, the second connecting edge 131 is connected perpendicularly to the back plate 130 and extends forward, the second straight edge 132 is connected perpendicularly to the second connecting edge 131 and extends towards the side plate 120, the second folding edge 133 is connected perpendicularly to the second straight edge 132 and extends backward, and the second guide edge 134 forms a second obtuse angle (about 120° in the embodiment) with the second folding edge 133 and extends towards the second connecting edge 131. The second flanges 1341 are connected to the second guide edge 134, and the cross-sectional shape of the second flanges 1341 is similar to J type, the hook segment of which is connected to the second guide edge 134, and the straight segment of which extends towards the second folding edge 133 in parallel to the second guide edge 134. See Figure 64-67 The plurality of second flanges 1341 are arranged along the axial direction of the second guide edge 134 at intervals.

[0234] The first flanges 1271 and the second flanges 1341 are arranged staggeredly to form a staggered interpenetrating structure similar to a hinge. When the second bending part cooperates with the first bending part, the first flanges 1271 and the second flanges 1341 abut and cooperate to limit the up-down movement of the side plate 120 and the back plate 130 along the axial direction.

[0235] Specifically, one of the first flanges 1271 and two of the second flanges 1341 form a set of staggered insertion structure, that is, the two second flanges 1341 have a flange gap for accommodating the first flange 1271, when the second buckle part 200 and the first buckle part 100 are matched with each other, the first flange 1271 is inserted into the flange gap, and the first flange 1271 and the second flange 1341 abut at the end, thereby limiting the relative movement of the side plate 120 and the back plate 130 in the axial direction. Or, similarly, two first flanges 1271 and one second flange 1341 form a set of staggered insertion structure, that is, the two first flanges 1271 have a flange gap for accommodating the second flange 1341, when the second buckle part 200 and the first buckle part 100 are matched with each other, the second flange 1341 is inserted into the flange gap, and the first flange 1271 and the second flange 1341 abut at the end, thereby limiting the relative movement of the side plate 120 and the back plate 130 in the axial direction.

[0236] Embodiment 4

[0237] The difference between this embodiment and embodiments 1 and 2 lies in the structure of the anti-warping piece. The anti-warping piece structure of this embodiment can be applied to the folding cabinet structures of embodiments 1-3. In embodiment 1, the anti-warping piece is arranged above the bottom plate 140; in embodiment 2, the anti-warping piece is arranged above both the bottom plate 140 and the partition plate 170. Hereinafter, the folding cabinet applied to embodiment 2 is taken as an example for description.

[0238] Referring to Figure 65 , the inner surface of the side plate 120 is movably provided with an anti-warping piece 180 at both sides of the rear end of the bottom plate 140 and the partition plate 170.

[0239] Specifically, the anti-warping piece 180 comprises a rotating seat 181, one end of which is movably arranged on the inner surface of the side plate 120. Specifically, the fifth lower bending part 1291 of the inner surface of the side plate 120 is provided with an upper plane, and the rotating seat 181 is movably arranged on the upper plane of the fifth lower bending part 1291 through a rotating shaft.

[0240] When the rotating seat 181 is rotated to the storage state, as shown in Figure 66 , it is close to the inner surface of the side plate 120 and does not protrude from the fifth lower bending part 1291, so as not to hinder the downward overturning of the partition plate 170 to the unfolded state.

[0241] When the rotating seat 181 is rotated to the locking state, as shown in Figure 65 , the bottom thereof abuts against the upper surface of the partition plate 170, so that the partition plate 170 in the unfolded state cannot be overturned upward.

[0242] In order to make the locking state of the anti-warping piece 180 more reliable, referring to Figure 68-70 , the first bending part of the side plate 120 is provided with an upper locking groove 183 and a lower locking groove 184 at a predetermined position, and the rotating seat 181 is correspondingly provided with an insertion piece 1812 for being inserted into the upper locking groove 183 and the lower locking groove 184, when the rotating seat 181 is rotated to the locking state, the insertion piece 1812 is clamped into the upper locking groove 183 and the lower locking groove 184.

[0243] Embodiment 5

[0244] The difference between this embodiment and embodiments 1 and 2 is that the locking piece structure is arranged between the upper bending part of the door frame 110 and the top bending part close to the door frame 110.

[0245] Referring to Figure 68 , the top plate 150 of this embodiment is provided with a locking piece 156 close to the top bending part (the first top bending part 151) of the door frame 110, and the locking piece 156 is a clasp spring which can be switched between a storage state and a locking state. Hereinafter, the folding cabinet applied to embodiment 2 is taken as an example for description.

[0246] Specifically, one end of the clasp spring is movably connected to the first top bending part 151, when the clasp spring is flipped upward, it is in the storage state, as shown in Figure 70 , when stored, the clasp spring is hidden in the space between the first top bending part 151 and the table plate 155, and does not affect the installation of the top plate 150. When the clasp spring is flipped downward, it is in the locking state, as shown in ​ , the flipped-down clasp spring is locked on the first upper bending part 1131 of the inner side of the upper frame 113, so that the top plate 150 is fixedly connected with the side plate 120, the back plate 130 and the door frame 110, preventing the user from lifting the top plate 150 from outside the cabinet.

[0247] In actual use, the structure that the top plate 150 is fixedly connected with the side plate 120, the back plate 130 and the door frame 110 can adopt the locking piece 156 of this embodiment, or the first connecting part 1133 and the second connecting part 1511 of embodiment 1, or both of the above two fixed connection structures.

[0248] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should also be considered as the protection scope of the present application.

Claims

1. A folding security cabinet, characterized in that, The folding security cabinet comprises: a cabinet door; a cabinet body comprising a door frame, side plates, a back plate, a bottom plate and a top plate; the cabinet door, the side plates and the bottom plate are hinged to the door frame to be folded inwardly towards the door frame, the back plate is detachably connected to the side plates, and the top plate is detachably arranged at a top opening of the cabinet body formed by the door frame, the side plates and the back plate, so that the cabinet body and the cabinet door form a security space after being assembled; the side edges of the cabinet door and the upper and lower edge frames of the door frame are connected by an opening and closing assembly to form a hinge that can be opened and closed, the opening and closing assembly makes the joint between the cabinet door and the side edge frames of the door frame unable to directly pass through the security space; the upper edge frame is provided with an upper shielding part, and the lower edge frame is provided with a lower shielding part, so that the joint between the cabinet door and the upper and lower edge frames cannot directly pass through the security space; the front side edges of the side plates and the side edge frames of the door frame are connected by a connecting assembly to form a hinge, and the connecting assembly makes the joint between the side plates and the side edge frames unable to directly pass through the security space; the rear side edges of the side plates and the side edges of the back plate are connected by a splicing assembly to form a detachable connection, and the splicing assembly makes the joint between the side plates and the back plate unable to directly pass through the security space; the connecting assembly comprises a first rotating part, a second rotating part, a first limiting part and a second limiting part; the first rotating part is arranged on a matching surface of the front side edge of the side plate, and the second rotating part is arranged on a matching surface of the side edge frame of the door frame, and is used for forming a hinge with the first rotating part; the first limiting part is arranged on the matching surface of the front side edge of the side plate, and the length of the first limiting part is consistent with the length of the matching surface of the side plate; the second limiting part is arranged on the matching surface of the side edge frame of the door frame, and the length of the second limiting part is consistent with the length of the matching surface of the side edge frame; when the side plate is folded to an unfolded state, the second limiting part and the first limiting part are matched with each other, so that the joint between the matching surface of the side plate and the matching surface of the side edge frame cannot directly pass through the security space and has a uniform width, and the side plate can only be rotated along a folding path to return to a folded state to be separated from the side edge frame; the first limiting part forms a preset channel with a bend; the preset channel is limited in that when the side plate is folded to the unfolded state, the second limiting part and the rear section of the preset channel are matched with each other, and the front section of the preset channel limits the side plate to be rotated along the folding path.

2. The folding security cabinet according to claim 1, wherein: lower bending parts are arranged on the inner side surfaces of the door frame, the side plates and the back plate, and the lower bending parts make the joint between the bottom plate and the door frame, the side plates and the back plate unable to directly pass through the security space; upper bending parts are arranged on the upper parts of the inner side surfaces of the door frame, the side plates and the back plate, and the upper bending parts make the joint between the top plate and the door frame, the side plates and the back plate unable to directly pass through the security space.

3. The folding security cabinet according to claim 2, wherein: The first limiting part is a limiting groove, and the second limiting part is a limiting hook. When the side plate is turned to the unfolded state, the front end of the limiting hook abuts against the inner wall of the limiting groove.

4. The folding security cabinet according to claim 3, characterized in that: The connecting assembly further comprises an outer connecting part, which is arranged on the fitting surface of the side frame, and the length of the outer connecting part is not less than the length of the fitting surface of the side frame. When the side plate is turned to the unfolded state, the outer connecting part abuts against the outer surface of the side plate, thereby shielding the joint between the fitting surface of the side plate and the fitting surface of the side frame.

5. The folding security cabinet according to claim 1, characterized in that: The assembling assembly comprises a first bending part and a second bending part; The first bending part is arranged on the assembling surface of the rear side of the side plate, and the length of the first bending part is consistent with the length of the assembling surface of the side plate. The second bending part is arranged on the assembling surface of the side of the back plate, and the length of the second bending part is consistent with the length of the assembling surface of the back plate. The second bending part and the first bending part cooperatively form a detachable buckling structure. When the side plate and the back plate are pre-aligned, the back plate is moved along the mounting path to form a buckling with the side plate. The second bending part and the first bending part cooperatively limit the movement of the back plate along the mounting path to separate from the side plate, and the assembling assembly forms a joint between the assembling surface of the side plate and the assembling surface of the back plate, which cannot directly pass through the security space and has a uniform width.

6. The folding security cabinet according to claim 5, characterized in that: The first bending part has at least two bending parts, and the end of the first bending part forms a first guide edge. The second bending part has at least two bending parts, and the end of the second bending part forms a second guide edge. When the second bending part and the first bending part are cooperatively matched, the second guide edge abuts against the first guide edge to reduce the joint between the assembling surface of the back plate and the assembling surface of the side plate.

7. The folding security cabinet according to claim 6, characterized in that: The first bending part further comprises a first flange connected with the first guide edge, and the second bending part further comprises a second flange connected with the second guide edge. When the second bending part and the first bending part are cooperatively matched, the first flange and the second flange cooperatively limit the up-and-down movement of the back plate relative to the side plate.

8. The folding security cabinet according to claim 1, characterized in that: The cabinet door comprises a first door body and a second door body; The left side of the first door body is connected to the left side of the door frame through the opening and closing assembly, so that a joint is formed between the first door body and the left frame of the door frame, which cannot directly pass through the security space. The right side of the first door body is provided with a convex edge. The right side of the second door body is connected to the right side of the door frame through the opening and closing assembly, so that a joint is formed between the second door body and the right frame of the door frame, which cannot directly pass through the security space. When the cabinet door is in the closed state, the left side edge of the second door body overlaps the convex edge, so that a joint is formed between the second door body and the first door body, which cannot directly pass through the secret space.

9. The folding secret cabinet according to claim 8, characterized in that: the opening and closing assembly comprises an avoiding groove, a door rotating shaft and a guide folded edge portion; the avoiding groove is formed at the front position of the inner surface of the left frame, the door rotating shaft is arranged on the upper surface of the lower frame and the lower surface of the upper frame at a predetermined distance on the right side of the avoiding groove, and the door rotating shaft is connected with the bottom and the top of the first door body, respectively; the guide folded edge portion is formed on the left side edge of the first door body, and the straight line distance between the door rotating shaft located at the top and the upper shielding portion is the radius of a circle with the door rotating shaft as the center, and the guide folded edge portion is located in the range of the circle; when the first door body is flipped to the closed state, the guide folded edge portion partially extends into the avoiding groove, the outer surface of the first door body is attached to the groove wall of the avoiding groove, so that a joint is formed between the first door body and the left frame, which cannot directly pass through the secret space.

10. The folding secret cabinet according to claim 9, characterized in that: the guide folded edge portion comprises a first edge, a second edge and a third edge connected in sequence; the first edge is connected with the outer surface of the first door body at a fifth included angle, the second edge is connected with the first edge at a sixth included angle, and the third edge is parallel to the outer surface of the first door body to form a multi-bending structure.

11. The folding secret cabinet according to claim 1, characterized in that: the bottom of the upper frame of the door frame is provided with the upper shielding portion, the upper shielding portion is a blocking piece structure, when the cabinet door is in the closed state, the upper joint between the upper edge of the cabinet door and the upper frame corresponds to the blocking piece structure, so that the upper joint cannot directly pass through the secret space.

12. The folding secret cabinet according to claim 1, characterized in that: when the bottom plate is in the unfolded state, the front side edge and the lower frame of the door frame jointly form the lower shielding portion, the lower shielding portion is a step structure, when the cabinet door is in the closed state, the lower joint between the lower edge of the cabinet door and the lower frame of the door frame corresponds to the step structure, so that the lower joint cannot directly pass through the secret space.

13. The folding secret cabinet according to claim 2, characterized in that: the top plate comprises a table plate and a top bending portion arranged at the bottom of the table plate; the upper bending portion arranged on the back plate forms a insertion slot facing the inside of the cabinet body, and the top bending portion close to the back plate is formed with an insertion piece for inserting into the insertion slot; the upper bending portion arranged on the door frame is fixedly connected with the top bending portion close to the door frame through a locking piece.

14. The folding secret cabinet according to claim 13, characterized in that: the locking piece is movably arranged on the top bending portion close to the door frame, and the locking piece has an unlocked state and a locked state. When the locking member is switched to the locking state, the upper bent part of the door frame is locked to form a fixed connection.

15. The folding security cabinet according to claim 1, characterized in that: The side edges of the bottom plate and the side frames of the door frame are hingedly connected by a turnover assembly, and the inner surface of the back plate or the side plate is provided with an anti-upturning member corresponding to the rear end of the bottom plate, which is used to limit the upward turning of the bottom plate in the unfolded state.

16. The folding security cabinet according to claim 15, characterized in that: The anti-upturning member is movably arranged on the inner surface of the side plate and has a storage state and a locking state; When the anti-upturning member is in the storage state, it is close to the inner surface of the side plate without hindering the downward turning of the bottom plate to the unfolded state; When the anti-upturning member is switched to the locking state, the bottom thereof abuts against the upper surface of the bottom plate.

17. The folding security cabinet according to claim 1, characterized in that: The side frames of the door frame are provided with horizontal side frames parallel to the lower side frames of the door frame at a predetermined height; The cabinet body further comprises a partition plate hingedly connected to the door frame to be folded inwardly toward the door frame, and the partition plate cooperates with the horizontal side frames to divide the cabinet body into two upper and lower security spaces, and each security space is independently opened and closed by one cabinet door.

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