Combined cabinet

Abstract

A combined cabinet comprises an upper frame body and a lower frame body, the upper frame body is in a frame shape and comprises an upper front beam, an upper rear beam, an upper left beam and an upper right beam, and the lower frame body is in a frame shape and comprises a lower front beam, a lower rear beam, a lower left beam and a lower right beam; the left vertical rod and the right vertical rod are connected to the left end and the right end of the upper rear beam and the left end and the right end of the lower rear beam respectively so as to support the rear end of the upper frame body. The device is characterized by further comprising a left side plate and a right side plate, the left side plate is arranged between the upper left beam and the lower left beam, the right side plate is arranged between the upper right beam and the lower right beam, and the left side plate and the right side plate can support the middle and the front end of the upper frame body; an upper rear groove with a downward opening is formed in the upper rear beam, a lower rear groove with an upward opening is formed in the lower rear beam, a rear left transverse groove with a rightward opening is formed in the left vertical rod, and a rear right transverse groove with a leftward opening is formed in the right vertical rod; the four side edges of the back plate can be inserted into the upper rear groove, the lower rear groove, the rear left transverse groove and the rear right transverse groove respectively.

Description

Technical Field

[0001] The present invention relates to the technical field of furniture, and in particular to a modular cabinet. Background Art

[0002] Modular floor cabinets are generally classified into kitchen floor cabinets, living room TV cabinets, and bathroom storage cabinets according to the use environment. The commonly seen modular floor cabinets on the market are generally made of panels connected together. The panels used are generally composite panels made of multiple layers of thin panels or wood chips connected by glue or resin, and glue is also used to connect the panels. This type of panel-made floor cabinet has the following problems. On the one hand, the glue or resin will evaporate over a long period of time and produce harmful substances (such as benzene, toluene, xylene, etc.), affecting the safety of the home environment; on the other hand, over time, the glue may cause partial or complete separation of the finish, requiring the complete replacement of the panel.

[0003] For this reason, people have improved the structure of floor cabinets, using steel or aluminum profiles to make frames, and then installing partitions made of metal, glass or ceramic materials in the hollow part of the frame, which greatly reduces the use of glue. For example, a Chinese invention patent with the publication number CN102695440B discloses a piece of furniture, which comprises a lower frame (2), a rear frame (3), an upper frame (4), and a side portion (33). The lower frame comprises a lower side portion (15), a lower rear portion (12), and a lower front portion (11). The rear frame (3) comprises a lower rear cross bar (22) and an upper rear cross bar (21) connected to each other via a side support (23), wherein the lower rear cross bar (22) and the upper rear cross bar (21) are fixed via a fixing device (17); the upper frame (4) comprises a front upper cross bar (29), and the upper side cross bar (31) is fixed to the front upper cross bar (29) via a fixing device (17); the lower side portion (15), the side support (23), and the upper side cross bar (31) comprise a seat (35), and the seat (35) is used to accommodate the side portion (33) when inserted. It also includes a rear part (20), wherein the middle pillar (24) and the side pillars (23) of the rear frame (3) form a guide inserted from above one or more rear parts (20), and the rear part is fixed to the rear frame (3) by a movable cross bar (19).

[0004] The technical solution of the patent (CN102695440B) does not require the use of glue and / or resin, and no harmful substances volatilized by glue or resin are generated. However, the installation process of the furniture is relatively troublesome, especially the rear part (i.e., the backboard) needs to be installed and fixed with the help of multiple components such as the lower rear cross bar (22), the upper rear cross bar (21), the middle support (24), the side support (23) and the movable cross bar (19), which is very troublesome. Summary of the invention

[0005] In order to overcome at least one of the above problems in the prior art, the present invention provides a combination cabinet, comprising:

[0006] An upper frame, the upper frame is frame-shaped, and the upper frame at least includes an upper front beam, an upper rear beam, an upper left beam, and an upper right beam;

[0007] A lower frame, the lower frame is frame-shaped, and the lower frame at least comprises a lower front beam, a lower rear beam, a lower left beam, and a lower right beam, wherein the lower front beam, the lower rear beam, the lower left beam, and the lower right beam are arranged one-to-one with the upper front beam, the upper rear beam, the upper left beam, and the upper right beam in vertical and horizontal correspondence;

[0008] It also includes a left upright pole and a right upright pole, wherein the left upright pole and the right upright pole are respectively connected to the left and right ends of the upper rear beam and the lower rear beam to support the rear end of the upper frame;

[0009] It also includes a left side plate and a right side plate, wherein the left side plate is arranged between the upper left beam and the lower left beam, and the right side plate is arranged between the upper right beam and the lower right beam, and the left side plate and the right side plate can support the middle part and the front end part of the upper frame;

[0010] An upper rear groove opening downward is provided on the upper rear beam, a lower rear groove opening upward is provided on the lower rear beam, a rear left transverse groove opening rightward is provided on the left vertical pole, and a rear right transverse groove opening leftward is provided on the right vertical pole; a back plate is also included, and the four side edges of the back plate can be respectively inserted into the upper rear groove, the lower rear groove, the rear left transverse groove and the rear right transverse groove.

[0011] Among them, the lower front beam, lower rear beam, lower left beam and lower right beam are arranged one-to-one with the upper front beam, upper rear beam, upper left beam and upper right beam in up-down and left-right order, which means that the upper frame and the lower frame are basically the same in shape and of comparable size, and the directions of arrangement of the upper frame and the lower frame arranged at intervals in up and down are also basically corresponding.

[0012] Among them, the left upright and the right upright are two columnar components connecting the upper frame and the lower frame. Since the left upright and the right upright are connected to the left and right ends of the upper rear beam and the lower rear beam, the left upright and the right upright can provide support for the rear end of the upper frame, and a front opening is formed between the front ends of the upper frame and the lower frame; in addition, the left upright and the right upright are basically aligned with the upper left beam and the upper right beam, respectively, which provides a connection basis for the subsequent installation of the left side plate and the right side plate.

[0013] The left side plate and the right side plate, in addition to being used to block the openings on the left and right sides, can also support the middle part and the front end part of the upper frame.

[0014] Among them, the back plate is a plate-like component used to cover the opening on the back of the combination cabinet, and can be combined with the grooves on the four rod-like components arranged around the back plate to be limited. The four rod-like components are the lower rear beam on the lower frame, the upper rear beam on the upper frame, the left vertical rod and the right vertical rod; the four sides of the back plate are combined with the grooves, which is not only firmly installed, but also can form a good sealing connection on the back of the combination cabinet.

[0015] According to the above technical scheme, compared with the prior art, the beneficial technical effects of the present invention are: first, compared with the prior art, the frame connector of the combination cabinet of the technical scheme of the present invention is simpler, especially the upper frame and the lower frame are connected only by the left upright and the right upright, which greatly simplifies the installation of the combination cabinet; second, the back panel used to block the back opening can be defined by only the lower rear beam, the upper rear beam, the left upright and the right upright, the installation connection is simple and the connection effect is stable, which is conducive to improving the installation efficiency of the product; third, the four side edges of the back panel can be respectively inserted into the upper rear groove, the lower rear groove, the rear left horizontal groove and the rear right horizontal groove. This connection not only facilitates the insertion of the back panel, but also helps to improve the sealing of the back, which helps to reduce the probability of items stored in the combination cabinet getting damp.

[0016] In order to improve the sealing performance of the left upright pole, the right upright pole and the back panel, a further technical solution may be that a left sealing groove is provided on the left upright pole, and a right sealing groove is provided on the right upright pole, and the left sealing groove and the right sealing groove are arranged between the rear left transverse groove and the rear right transverse groove; and further comprising a back sealing strip, the back sealing strip being provided in the left sealing groove and the right sealing groove, and when the back panel is inserted into the rear left transverse groove and the rear right transverse groove, the back sealing strip forms a sealed connection between the left upright pole, the right upright pole and the back panel.

[0017] In order to facilitate the installation of the side panels on both sides of the cabinet, a further technical solution can also be that an upper left groove and an upper right groove with openings facing downward are respectively provided on the upper left beam and the upper right beam, a lower left groove and a lower right groove with openings facing upward are respectively provided on the lower left beam and the lower right beam, and a rear left vertical groove and a rear right vertical groove with openings facing forward are respectively provided on the left vertical rod and the right vertical rod; wherein the groove bottom walls of the lower left groove and the lower right groove are shorter than the lower front beam and the lower rear beam, so that the lower front beam and the lower rear beam block at least part of the groove openings at both ends of the lower left groove and the lower right groove; The middle parts of the lower edges of the left and right panels are respectively provided with a lower left boss and a lower right boss protruding downward; the upper left edge, rear left edge and lower left boss of the left panel are respectively inserted into the upper left groove, rear left vertical groove and lower left groove; the upper right edge, rear right edge and lower right boss of the right panel are respectively inserted into the upper right groove, rear right vertical groove and lower right groove; the lower front beam and lower rear beam are arranged at the front and rear sides of the lower left boss and the lower right boss, and respectively support the lower edges of the left and right panels on both sides of the lower left boss and the lower right boss.

[0018] The left side plate and the right side plate are generally made of glass. Since the lower edges of the left side plate and the right side plate located on both sides of the lower left boss and the lower right boss are directly in contact with the lower front beam and the lower rear beam, the contact points are easily damaged due to collision. A further technical solution may also include soft rubber pads, which are arranged between the lower edges of the left side plate and the right side plate on both sides of the lower left boss and the lower right boss and the lower front beam and the lower rear beam. Through the isolation and buffering of the soft rubber pads, the collision of the left side plate and the right side plate with the lower front beam and the lower rear beam can be well avoided.

[0019] In order to further protect the left side panel and the right side panel, a C-shaped rubber pad is further included. The C-shaped rubber pad is arranged in the upper left groove, the upper right groove, the lower left groove, the lower right groove, the rear left vertical groove and the rear right vertical groove, and can be sleeved on the left side panel and the right side panel inserted into the groove.

[0020] In order to prevent the C-shaped rubber pad from falling out of the groove, a further technical solution may be that a rubber pad socket is provided on the side walls of the upper left groove, upper right groove, lower left groove, lower right groove, rear left vertical groove and rear right vertical groove, and a connecting rib matching the rubber pad socket is provided on one side wall of the C-shaped rubber pad, and the C-shaped rubber pad is connected to the upper left groove, upper right groove, lower left groove, lower right groove, rear left vertical groove and rear right vertical groove through the cooperation of the connecting rib and the rubber pad socket.

[0021] A further technical solution may be that a lower left connecting hole and a lower right connecting hole are respectively provided on the lower left boss and the lower right boss, and screws are respectively connected to the lower left beam and the lower right beam through the lower left connecting hole and the lower right connecting hole, so that the left side plate and the right side plate are respectively connected to the lower left boss and the lower right boss.

[0022] A further technical solution may also include a bottom plate, which is overlapped on the lower front beam, the lower rear beam, the lower left beam and the lower right beam.

[0023] When the length of the combination cabinet is longer, a further technical solution may also be that it also includes at least one middle upper beam, middle lower beam and neutral rod, the middle lower beam is arranged between the lower left beam and the lower right beam, and its two ends are respectively connected to the lower front beam and the lower rear beam, the neutral rod is arranged between the left upright rod and the right upright rod, and its two ends are respectively connected to the lower rear beam and the upper rear beam, the middle upper beam is arranged between the upper left beam and the upper right beam, and its two ends are respectively connected to the upper front beam and the neutral rod; and also includes a middle partition, the side edges of which are respectively connected to the middle upper beam, the middle lower beam and the neutral rod.

[0024] A further technical solution may be that the rear ends of the upper left beam and the upper right beam are connected to the left upright pole and the right upright pole respectively, and extend backward to protrude out of the left upright pole and the right upright pole to form a left tail portion and a right tail portion. In this way, when the modular cabinet is backed against the wall, the left tail portion and the right tail portion will first be pressed against the wall to form a two-point positioning, which is conducive to aligning the modular cabinet with the wall.

[0025] Since the present invention has the above characteristics and advantages, it can be applied to combined cabinets. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the axial direction structure of a modular cabinet to which the technical solution of the present invention is applied;

[0027] Figure 2 is a schematic diagram of the cross-sectional structure of the combined cabinet in the front view direction;

[0028] Figure 3 yes Figure 2 The schematic diagram of the local enlarged structure at M in the middle;

[0029] Figure 4 yes Figure 2 Schematic diagram of the cross-section structure in the AA direction;

[0030] Figure 5 yes Figure 4 A schematic diagram of the partially enlarged structure at K in the middle;

[0031] Figure 6is a schematic diagram of the exploded structure of the combined cabinet;

[0032] Figure 7 is a structural schematic diagram of the upper frame;

[0033] Figure 8 is a structural schematic diagram of the lower frame;

[0034] Fig. 9 It is a structural schematic diagram of the right upright pole. DETAILED DESCRIPTION

[0035] The structure of the modular cabinet using the technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0036] Except for those explicitly stated to be equivalent or alternative implementation schemes, the various implementation details disclosed below can be selectively applied or combined in one embodiment even if they are not directly related or synergistic in terms of functions.

[0037] like Figure 1 to Figure 9 As shown, a combination cabinet proposed by the present invention comprises: an upper frame 1, the upper frame 1 is frame-shaped, and at least comprises an upper front beam 11, an upper rear beam 12, an upper left beam 13 and an upper right beam 14; a lower frame 2, the lower frame 2 is frame-shaped, and at least comprises a lower front beam 21, a lower rear beam 22, a lower left beam 23 and a lower right beam 24, wherein the lower front beam 21, the lower rear beam 22, the lower left beam 23 and the lower right beam 24 are arranged one by one with the upper front beam 11, the upper rear beam 12, the upper left beam 13 and the upper right beam 14 in a one-to-one correspondence up and down and left and right; further comprises a left upright rod 31 and a right upright rod 32, the left upright rod 31 and the right upright rod 32 are respectively connected to the left and right ends of the upper rear beam 12 and the lower rear beam 22 to support the rear end of the upper frame 1; further comprises a left side plate 4 1 and a right side plate 42, the left side plate 41 is arranged between the upper left beam 13 and the lower left beam 23, the right side plate 42 is arranged between the upper right beam 14 and the lower right beam 24, the left side plate 41 and the right side plate 42 can support the middle part and the front end part of the upper frame 1; an upper rear groove 120 with an opening facing downward is provided on the upper rear beam 12, a lower rear groove 220 with an opening facing upward is provided on the lower rear beam 22, a rear left transverse groove 310 with an opening facing right is provided on the left vertical rod 31, and a rear right transverse groove 320 with an opening facing left is provided on the right vertical rod 32; and also includes a back plate 5, the four side edges of the back plate 5 can be respectively inserted into the upper rear groove 120, the lower rear groove 220, the rear left transverse groove 310 and the rear right transverse groove 320.

[0038] The left upright bar 31 and the right upright bar 32 are two columnar members connecting the upper frame 1 and the lower frame 2. Since the left upright bar 31 and the right upright bar 32 are connected to the left and right ends of the upper rear beam 12 and the lower rear beam 22, the left upright bar 31 and the right upright bar 32 can provide support for the rear end of the upper frame 1, and a front opening is formed between the front ends of the upper frame 1 and the lower frame 2. In addition, the left upright bar 31 and the right upright bar 32 are also substantially aligned with the upper left beam 13 and the upper right beam 14, respectively, which provides a connection basis for the installation of the left side plate 41 and the right side plate 42. In addition to being used to block the openings on the left and right sides, the left side plate 41 and the right side plate 42 can also support the upper frame 1 together with the left upright bar 31 and the right upright bar 32.

[0039] In order to facilitate the installation of the side panels on both sides of the cabinet, a further technical solution can also be that an upper left groove 130 and an upper right groove 140 with openings facing downward are respectively provided on the upper left beam 13 and the upper right beam 14, a lower left groove 230 and a lower right groove 240 with openings facing upward are respectively provided on the lower left beam 23 and the lower right beam 24, and a rear left vertical groove 311 and a rear right vertical groove 321 with openings facing forward are respectively provided on the left upright rod 31 and the right upright rod 32; wherein, the groove bottom walls of the lower left groove 230 and the lower right groove 240 are shorter than the lower front beam 21 and the lower rear beam 22, so that the lower front beam 21 and the lower rear beam 22 block at least part of the groove openings at both ends of the lower left groove 230 and the lower right groove 240; the left side plate 41 and the right side plate 42 are provided with a plurality of grooves, and the grooves ... A lower left boss 411 and a lower right boss 421 protruding downward are respectively provided in the middle of the lower edge of the plate 42; the upper left edge 412, the rear left edge 413 and the lower left boss 411 of the left side plate 41 are respectively inserted into the upper left groove 130, the rear left vertical groove 311 and the lower left groove 230; the upper right edge 422, the rear right edge 423 and the lower right boss 421 of the right side plate 42 are respectively inserted into the upper right groove 140, the rear right vertical groove 321 and the lower right groove 240; the lower front beam 21 and the lower rear beam 22 are arranged on the front and rear sides of the lower left boss 411 and the lower right boss 421, and respectively support the lower edges of the left side plate 41 and the right side plate 42 located on both sides of the lower left boss 411 and the lower right boss 421.

[0040] In order to improve the sealing performance of the left upright pole 31, the right upright pole 32 and the back panel 5, a further technical solution may be that a left sealing groove 312 is provided on the left upright pole 31, and a right sealing groove 322 is provided on the right upright pole 32, and the left sealing groove 312 and the right sealing groove 322 are arranged between the rear left transverse groove 310 and the rear right transverse groove 320; and further include a back sealing strip 34, and the back sealing strip 34 is provided in the left sealing groove 312 and the right sealing groove 322, and when the back panel 5 is inserted into the rear left transverse groove 310 and the rear right transverse groove 320, the back sealing strip 34 forms a sealed connection between the left upright pole 31, the right upright pole 32 and the back panel 5.

[0041] The left side plate 41 and the right side plate 42 are generally made of glass. Since the lower edges of the left side plate 41 and the right side plate 42 on both sides of the lower left boss 411 and the lower right boss 421 directly contact the lower front beam 21 and the lower rear beam 22, the contact points are easily damaged due to collision. A further technical solution may also include a soft rubber pad 6, which is arranged between the lower edges of the left side plate 41 and the right side plate 42 on both sides of the lower left boss 411 and the lower right boss 421 and the lower front beam 21 and the lower rear beam 22. Through the isolation and buffering of the soft rubber pad 6, the collision of the left side plate 41 and the right side plate 42 with the lower front beam 21 and the lower rear beam 22 is well avoided.

[0042] In order to further protect the left side plate 41 and the right side plate 42, a C-shaped rubber pad 7 is further included. The C-shaped rubber pad 7 is arranged in the upper left groove 130, the upper right groove 140, the lower left groove 230, the lower right groove 240, the rear left vertical groove 311 and the rear right vertical groove 321, and can be sleeved on the left side plate 41 and the right side plate 42 inserted into the grooves.

[0043] In order to prevent the C-shaped rubber pad 7 from falling out of the groove, a further technical solution may be that a rubber pad socket 70 is provided on the side walls of the upper left groove 130, the upper right groove 140, the lower left groove 230, the lower right groove 240, the rear left vertical groove 311 and the rear right vertical groove 321, and a connecting rib 71 matching the rubber pad socket 70 is provided on one side wall of the C-shaped rubber pad 7, and the C-shaped rubber pad 7 is connected to the upper left groove 130, the upper right groove 140, the lower left groove 230, the lower right groove 240, the rear left vertical groove 311 and the rear right vertical groove 321 through the cooperation of the connecting rib 71 and the rubber pad socket 70.

[0044] A further technical solution may be that a lower left connecting hole 4110 and a lower right connecting hole 4210 are respectively provided on the lower left boss 411 and the lower right boss 421, and screws are respectively connected to the lower left beam 23 and the lower right beam 24 through the lower left connecting hole 4110 and the lower right connecting hole 4210, so that the left side plate 41 and the right side plate 42 are respectively connected to the lower left boss 411 and the lower right boss 421.

[0045] A further technical solution may also include a bottom plate 8 , wherein the bottom plate 8 is overlapped on the lower front beam 21 , the lower rear beam 22 , the lower left beam 23 and the lower right beam 24 .

[0046] A further technical solution may also include at least one middle upper beam 15, a middle lower beam 25 and a neutral pole 33, wherein the middle lower beam 25 is arranged between the lower left beam 23 and the lower right beam 24 and its two ends are respectively connected to the lower front beam 21 and the lower rear beam 22, the neutral pole 33 is arranged between the left upright pole 31 and the right upright pole 32 and its two ends are respectively connected to the lower rear beam 22 and the upper rear beam 12, the middle upper beam 15 is arranged between the upper left beam 13 and the upper right beam 14 and its two ends are respectively connected to the upper front beam 11 and the neutral pole 33; and further includes a middle partition 43, the side edges of which are respectively connected to the middle upper beam 15, the middle lower beam 25 and the neutral pole 33.

[0047] A further technical solution may be that the rear ends of the upper left beam 13 and the upper right beam 14 are respectively connected to the left upright pole 31 and the right upright pole 32 , and extend backwards and protrude out of the left upright pole 31 and the right upright pole 32 to form a left tail portion 131 and a right tail portion 141 .

[0048] The beneficial technical effects of the present invention are: first, compared with the prior art, the frame connector of the combination cabinet of the technical solution of the present invention is simpler, especially the upper frame 1 and the lower frame 2 are connected only by the left upright 31 and the right upright 32, which greatly simplifies the installation of the combination cabinet; second, the back panel 5 used to block the back opening can be defined by only the lower rear beam 22, the upper rear beam 12, the left upright 31 and the right upright 32, the installation connection is simple and the connection effect is stable, which is conducive to improving the installation efficiency of the product; third, the four side edges of the back panel 5 can be respectively inserted into the upper rear groove 120, the lower rear groove 220, the rear left horizontal groove 310 and the rear right horizontal groove 320. This connection not only facilitates the insertion of the back panel 5, but also helps to improve the sealing of the back, which helps to reduce the probability of items stored in the combination cabinet getting damp.

Claims

1. A combination cabinet, comprising: The upper frame is frame-shaped and includes at least an upper front beam, an upper rear beam, an upper left beam and an upper right beam. A lower frame, the lower frame is frame-shaped, and at least comprises a lower front beam, a lower rear beam, a lower left beam, and a lower right beam, wherein the lower front beam, the lower rear beam, the lower left beam, and the lower right beam are arranged one by one with respect to the upper front beam, the upper rear beam, the upper left beam, and the upper right beam in vertical and horizontal correspondence; It also includes a left upright pole and a right upright pole, wherein the left upright pole and the right upright pole are respectively connected to the left and right ends of the upper rear beam and the lower rear beam to support the rear end of the upper frame; It is characterized in that it also includes a left side plate and a right side plate, the left side plate is arranged between the upper left beam and the lower left beam, the right side plate is arranged between the upper right beam and the lower right beam, and the left side plate and the right side plate can support the middle part and the front end part of the upper frame; An upper rear groove opening downward is provided on the upper rear beam, a lower rear groove opening upward is provided on the lower rear beam, a rear left transverse groove opening rightward is provided on the left vertical pole, and a rear right transverse groove opening leftward is provided on the right vertical pole; a back plate is also included, and the four side edges of the back plate can be respectively inserted into the upper rear groove, the lower rear groove, the rear left transverse groove and the rear right transverse groove.

2. The combination cabinet according to claim 1, characterized in that: A left sealing groove is provided on the left vertical pole, and a right sealing groove is provided on the right vertical pole, and the left sealing groove and the right sealing groove are arranged between the rear left transverse groove and the rear right transverse groove; a back sealing strip is also included, and the back sealing strip is provided in the left sealing groove and the right sealing groove. When the back plate is inserted into the rear left transverse groove and the rear right transverse groove, the back sealing strip forms a sealed connection between the left vertical pole, the right vertical pole and the back plate.

3. The combination cabinet according to any one of claims 1 or 2, characterized in that: An upper left groove and an upper right groove with openings facing downwards are respectively arranged on the upper left beam and the upper right beam, a lower left groove and a lower right groove with openings facing upwards are respectively arranged on the lower left beam and the lower right beam, and a rear left vertical groove and a rear right vertical groove with openings facing forwards are respectively arranged on the left upright pole and the right upright pole; wherein the groove bottom walls of the lower left groove and the lower right groove are shorter than the lower front beam and the lower rear beam, so that the lower front beam and the lower rear beam block at least part of the groove openings at both ends of the lower left groove and the lower right groove; the lower edges of the left and right panels A lower left boss and a lower right boss protruding downward are respectively provided in the middle of the edge; the upper left edge, rear left edge and lower left boss of the left side plate are respectively inserted into the upper left groove, rear left vertical groove and lower left groove; the upper right edge, rear right edge and lower right boss of the right side plate are respectively inserted into the upper right groove, rear right vertical groove and lower right groove; the lower front beam and the lower rear beam are arranged on the front and rear sides of the lower left boss and the lower right boss, and respectively support the lower edges of the left side plate and the right side plate located on both sides of the lower left boss and the lower right boss.

4. The combined cabinet according to claim 3, characterized in that: It also includes soft rubber pads, which are arranged between the lower edges of the left and right plates on both sides of the lower left boss and the lower right boss and the lower front beam and the lower rear beam.

5. The combined cabinet according to claim 3, characterized in that: It also includes a C-shaped rubber pad, which is arranged in the upper left groove, the upper right groove, the lower left groove, the lower right groove, the rear left vertical groove and the rear right vertical groove, and can be sleeved on the left and right sides of the plate inserted into the grooves.

6. The combined cabinet according to claim 5, characterized in that: Rubber pad sockets are arranged on the side walls of the upper left groove, upper right groove, lower left groove, lower right groove, rear left vertical groove and rear right vertical groove, and connecting ribs matching the rubber pad sockets are arranged on one side wall of the C-shaped rubber pad, and the C-shaped rubber pad is connected to the upper left groove, upper right groove, lower left groove, lower right groove, rear left vertical groove and rear right vertical groove through the cooperation of the connecting ribs and the rubber pad sockets.

7. The combined cabinet according to claim 3, characterized in that: A lower left connecting hole and a lower right connecting hole are respectively provided on the lower left boss and the lower right boss, and screws are respectively connected to the lower left beam and the lower right beam through the lower left connecting hole and the lower right connecting hole, so that the left side plate and the right side plate are respectively connected to the lower left boss and the lower right boss.

8. The combined cabinet according to claim 3, characterized in that: It also includes a bottom plate, which is overlapped on the lower front beam, the lower rear beam, the lower left beam and the lower right beam.

9. The combined cabinet according to claim 3, characterized in that: It also includes at least one middle upper beam, middle lower beam and neutral pole, the middle lower beam is arranged between the lower left beam and the lower right beam, and its two ends are respectively connected to the lower front beam and the lower rear beam, the neutral pole is arranged between the left upright pole and the right upright pole, and its two ends are respectively connected to the lower rear beam and the upper rear beam, the middle upper beam is arranged between the upper left beam and the upper right beam, and its two ends are respectively connected to the upper front beam and the neutral pole; it also includes a middle partition, and the side edges of the middle partition are respectively connected to the middle upper beam, the middle lower beam and the neutral pole.

10. The combined cabinet according to claim 3, characterized in that: The rear ends of the upper left beam and the upper right beam are respectively connected to the left upright pole and the right upright pole, and extend backward to protrude out of the left upright pole and the right upright pole to form a left tail portion and a right tail portion.

Images