Double-door mounting structure and double-door cabinet applying same

Abstract

The utility model belongs to the technical field of cabinets, and particularly relates to a double-door installation structure and a double-door cabinet with the installation structure. The double-door mounting structure comprises two connecting pieces which are spaced up and down, a first door leaf and a second door leaf which are opposite left and right are mounted between the two connecting pieces, the relatively close parts of the first door leaf and the second door leaf are free door edges, and the free door edge of the first door leaf can be flatly opened outwards; the second door leaf can slide left and right after the first door leaf is opened, the free door edge of the second door leaf can be flatly opened outwards when the second door leaf slides to be close to the first door leaf, and a door lock is arranged between the first door leaf and the second door leaf. The sliding door has the advantages that the second door leaf cannot slide or be opened flatly after being locked, and the first door leaf and the second door leaf are tightly combined and are not prone to shaking; the door is free of complex operation, simple in overall structure and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of cabinet technology, specifically to a double-door installation structure and a double-door cabinet using the installation structure. Background Technology

[0002] The existing double-door cabinet includes a cabinet body with an entrance and exit. The entrance and exit are equipped with two doors, one on the left and one on the right. The side of the two doors that are close to each other can open outwards, and a lock is installed between the two doors.

[0003] In this type of double-door cabinet, both doors are locked with a lock after being closed. However, there is no fixed connection between the doors and the cabinet body, making it easy for the doors to wobble after locking. To solve this problem, some cabinets have a bolt between one of the doors and the cabinet body. When closing, this bolt is used to secure the first door, then the other door closes, and finally the lock is used to lock the other door. However, the addition of the bolt not only complicates the structure but also requires an extra step of inserting and removing the bolt when opening and closing the door, making the operation more cumbersome.

[0004] The problems with existing technologies are: 1. In the first type of double-door structure, the two door panels are prone to shaking after locking. 2. The second type of double-door structure increases complexity and makes opening and closing the door more cumbersome. Utility Model Content

[0005] The purpose of this utility model is to provide a double-door installation structure and a double-door cabinet using the installation structure to address the above problems, thereby solving the problems of easy door shaking after locking and cumbersome opening and closing operations in the prior art.

[0006] To achieve the above objectives, this utility model discloses a double-door installation structure and a double-door cabinet using this installation structure. The double-door installation structure includes two connecting members spaced apart vertically. A first door and a second door are installed between the two connecting members, facing each other. The relatively close portions of the first and second doors are free-sliding edges. The free-sliding edge of the first door can open outwards, and the second door can slide left and right after the first door is opened. When the second door slides close to the first door, its free-sliding edge can open outwards. A door lock is provided between the first and second doors. With this structure, the second door cannot open completely after being closed and slid away from the first door. Closing the first door and using the door lock prevents the doors from shaking. This double-door installation structure does not require additional mechanisms like bolts, resulting in a simple overall structure. Opening and closing the doors also eliminates the need for an extra bolt insertion / removal action, making the operation very convenient.

[0007] Furthermore, the inner surface of the connector is provided with a rotating hole and a limiting groove near the first door leaf. The limiting groove penetrates the outer surface of the connector. The first door leaf is provided with a rotating shaft and a limiting post. The rotating shaft is inserted into the rotating hole, and the limiting post is inserted into the limiting groove. The inner surface of the connector is provided with a sliding groove and a limiting sliding groove near the second door leaf. The second door leaf is provided with a sliding shaft and a sliding limiting post. The sliding groove extends in the left-right direction. The limiting sliding groove includes a sliding groove segment and a limiting groove segment. The sliding groove segment extends in the left-right direction. One end of the limiting groove segment is connected to the part of the sliding groove segment away from the sliding groove. The other end of the limiting groove segment penetrates the outer surface of the connector. The sliding shaft is inserted into the sliding groove, and the sliding limiting post is inserted into the limiting sliding groove. With the above structure, the rotating shaft and the limiting post cooperate with the rotating hole and the limiting groove respectively to realize the opening of the first door leaf. After the first door leaf is closed, the limiting groove can limit it. The sliding shaft and the sliding limiting post cooperate with the sliding groove and the limiting sliding groove respectively to realize that the second door leaf can open horizontally after sliding to one side, but cannot open horizontally after sliding to the other side. After closing the door, the second door leaf can be prevented from shaking.

[0008] Furthermore, the width of the first door leaf is set such that the first door leaf can close after the second door leaf slides away from the first door leaf once, and the free side of the first door leaf can prevent the second door leaf from sliding in the opposite direction. With the above structure, the closed first door leaf has the function of restricting the sliding of the second door leaf, further preventing the first door leaf from shaking.

[0009] Furthermore, the first door leaf has a first flange near its outer side at the free edge, and the second door leaf has a second flange near its inner side at the free edge. When both the first and second door leaves are closed, the first and second flanges are staggered. With this structure, when both the first and second door leaves are closed, the first flange presses against the outside of the second flange, ensuring a tight fit between the first and second door leaves and eliminating any gaps between them.

[0010] Furthermore, the door lock includes a swing lock rod rotatably connected to the second door leaf; when the second door leaf is closed and slids to a side away from the first door leaf, and when the first door leaf is closed, the swing lock rod can rotate to the outside of the first door leaf; a first mounting groove and a second mounting groove are respectively provided on the outer surfaces of the first and second door leaves, and the part of the swing lock rod rotatably connected to the second door leaf is located in the first mounting groove. When the free end of the swing lock rod rotates to the side where the first door leaf is located, it can enter the first mounting groove; the lower part of the first mounting groove has a first limiting stop for supporting the swing lock rod. With the above structure, the first mounting groove and the second mounting groove together form a structure to accommodate the swing lock rod, which does not occupy external space. The first limiting stop is used to limit the position of the swing lock rod and keep the locked state stable. This door lock has the advantages of simple structure, convenient operation, and low manufacturing cost.

[0011] Furthermore, the second mounting groove has a second limiting stop on the side away from the first door leaf, and a limiting protrusion is provided in the second mounting groove near the second limiting stop. The swing lock rod has an elastic protrusion on its side near the second door leaf. When the free end of the swing lock rod rotates to the side where the second door leaf is located, the protrusion can pass over the limiting protrusion and get stuck in the space between the second limiting stop and the limiting protrusion. With the above structure, the second limiting stop, the limiting protrusion, and the protrusion combine to keep the unlocked state unchanged and prevent the swing lock rod from rotating arbitrarily after unlocking.

[0012] Furthermore, the outer surface of the connector is provided with secondary rotating holes, secondary limiting grooves, secondary sliding grooves, and secondary limiting sliding grooves that are symmetrical to the rotating hole, limiting groove, sliding groove, and limiting sliding groove. With this structure, the connector can be used on both sides, offering strong versatility.

[0013] This utility model also discloses a double-door cabinet, including the aforementioned double-door installation structure. The connecting member is a plate-like structure. The double-door cabinet also includes a side wall, which, together with the two connecting members, forms an accommodating space with an entrance and exit. The first door and the second door are located at the entrance and exit. With the above structure, the double-door cabinet, in addition to possessing the advantages of a double-door installation structure, also has a relatively simple overall structure, which helps to reduce manufacturing costs.

[0014] The sidewall includes several wall panels, with insertion holes on the connectors, insertion blocks on the wall panels, protruding ribs inside the insertion holes, and elastic barbs on the insertion blocks. The insertion blocks can be inserted into the insertion holes so that the barbs pass over the protruding ribs, thus achieving the insertion and fixing of the wall panels and connectors. With the above structure, the double-door cabinet adopts an insertion structure, which facilitates installation and transportation.

[0015] One or more of the connector, first door leaf, second door leaf, and side wall are injection molded or cast parts. With this structure, all components of the double-door cabinet can be manufactured using a one-piece molding process, eliminating the need for secondary processing and simplifying the production process.

[0016] In summary, the beneficial effects of this utility model are as follows: 1. After locking, the second door leaf cannot slide or open horizontally; it is firmly fixed to the connecting piece, and the first door leaf is locked using the door lock. The first and second door leaves are tightly connected and not easily shaken. 2. When opening the door, it is only necessary to perform the following operations in sequence: unlock the door, open the first door leaf horizontally, slide the second door leaf, and open the second door leaf. Opening and closing the door is relatively convenient. 3. The first and second door leaves and the connecting piece are connected by a one-time molded hole, groove, shaft, and column, which achieves the effect of the door leaf not shaking after locking and convenient opening and closing. There are no other parts like bolts, resulting in a simple structure and low manufacturing cost. 4. The connecting piece, the first door leaf, the second door leaf, and the wall panel can be made of injection molding or casting, which simplifies the processing technology and further reduces manufacturing costs. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the double-door cabinet in the closed state of this utility model;

[0018] Figure 2 yes Figure 1 A front view of the embodiment shown;

[0019] Figure 3 yes Figure 1 The bottom view of the embodiment shown;

[0020] Figure 4 yes Figure 2 A schematic diagram of the structure after being cut along line AA in the middle;

[0021] Figure 5 yes Figure 2 A schematic diagram of the structure after being cut along line BB in the middle;

[0022] Figure 6 yes Figure 2 A schematic diagram of the structure after being cut along the CC line;

[0023] Figure 7 yes Figure 2 A schematic diagram of the structure after being cut along the DD line;

[0024] Figure 8 yes Figure 7 Enlarged view of part E in the image;

[0025] Figure 9 This is a schematic diagram of the structure of the first door leaf and the second door leaf in this utility model;

[0026] Figure 10 This is a structural schematic diagram of the double-door cabinet in the open state of this utility model;

[0027] Figure 11 This is a schematic diagram of the opening method of the first door leaf and the second door leaf in this utility model;

[0028] Figure 12 This is a schematic diagram of one embodiment of the swing lock rod in this utility model.

[0029] In the diagram: 1. Connector, 2. First door leaf, 3. Second door leaf, 5. Rotating hole, 6. Limiting groove, 7. Rotating shaft, 8. Limiting post, 9. Sliding groove, 10. Limiting sliding groove, 11. Sliding shaft, 12. Sliding limiting post, 13. Sliding groove section, 14. Limiting groove section, 15. Swing locking rod, 16. First mounting groove, 17. Second mounting groove, 18. First limiting stop, 19. Second limiting stop, 20. Limiting protrusion, 21. Raised edge, 22. Secondary rotating hole, 23. Secondary limiting groove, 24. Secondary sliding groove, 25. Secondary limiting sliding groove, 27. Wall panel, 29. Insertion hole, 30. Insertion block, 31. Raised rib, 32. Barb. Detailed Implementation

[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0031] Reference Figure 1 , Figure 10 , Figure 11 In one embodiment of this utility model, the double-door installation structure includes two connecting members 1 spaced apart vertically. A first door leaf 2 and a second door leaf 3, facing each other, are installed between the two connecting members 1. The relatively close portions of the first door leaf 2 and the second door leaf 3 are free-sliding edges. The free-sliding edge of the first door leaf 2 can open outwards. After the first door leaf 2 is opened, the second door leaf 3 can slide left and right, and when it slides close to the first door leaf 2, its free-sliding edge can open outwards. A door lock is provided between the first door leaf 2 and the second door leaf 3. "Opening outwards" refers to the door leaf rotating outwards around an axis. After the second door leaf 3 is closed and slides away from the first door leaf 2, it can no longer open outwards. Closing the first door leaf 2 and the door lock prevents the door leaf from shaking. This double-door installation structure does not require additional structures like bolts, making the overall structure simple. Opening and closing the door does not require an extra step of inserting or removing a bolt, making the operation very convenient.

[0032] Reference Figure 4 , Figure 6 , Figure 9 , Figure 11In one embodiment of this utility model, a rotating hole 5 and a limiting groove 6 are provided on the inner surface of the connector 1 near the first door leaf 2. The limiting groove 6 penetrates the outer side of the connector 1. The first door leaf 2 is provided with a rotating shaft 7 and a limiting post 8. The rotating shaft 7 is inserted into the rotating hole 5, and the limiting post 8 is inserted into the limiting groove 6. A sliding groove 9 and a limiting sliding groove 10 are provided on the inner surface of the connector 1 near the second door leaf 3. The second door leaf 3 is provided with a sliding shaft 11 and a sliding limiting post 12. The sliding groove 9 extends in the left-right direction. The limiting sliding groove 10 includes a sliding groove segment 13 and a limiting groove segment 14. The sliding groove segment 13 extends in the left-right direction. One end of the limiting groove segment 14 is connected to the part of the sliding groove segment 13 away from the sliding groove 9. The other end of the limiting groove segment 14 penetrates the outer side of the connector 1. The sliding shaft 11 is inserted into the sliding groove 9, and the sliding limiting post 12 is inserted into the limiting sliding groove 10. With the above structure, the rotating shaft 7 and the limiting post 8 cooperate with the rotating hole 5 and the limiting groove 6 respectively to realize the opening of the first door leaf 2. After the first door leaf 2 is closed, the limiting groove 6 can limit it. The sliding shaft 11 and the sliding limiting post 12 cooperate with the sliding groove 9 and the limiting sliding groove 10 respectively to realize that the second door leaf 3 can open horizontally after sliding to one side, but cannot open horizontally after sliding to the other side. After closing the door, the second door leaf 3 can be prevented from shaking.

[0033] Reference Figure 1 , Figure 10 , Figure 11 In one embodiment of this utility model, the width of the first door leaf 2 is set such that after the second door leaf 3 slides away from the first door leaf 2, the first door leaf 2 can close, and the free side of the first door leaf 2 can prevent the second door leaf 3 from sliding in the opposite direction. With the above structure, the closed first door leaf 2 has the function of restricting the sliding of the second door leaf 3, further preventing the first door leaf 2 from shaking.

[0034] Reference Figure 5 , Figure 11 In one embodiment of this utility model, a first flange 33 is provided on the free side of the first door leaf 2 near the outer side, and a second flange 34 is provided on the free side of the second door leaf 3 near the inner side. When both the first door leaf 2 and the second door leaf 3 are closed, the first flange 33 and the second flange 34 are staggered. With the above structure, when both the first door leaf 2 and the second door leaf 3 are closed, the first flange 33 presses against the outside of the second flange 34, making the first door leaf 2 and the second door leaf 3 tightly connected and eliminating any gaps between them.

[0035] Reference Figure 1 , Figure 2 , Figure 10 , Figure 12In one embodiment of this utility model, the door lock includes a swing lock rod 15 rotatably connected to the second door leaf 3. When the second door leaf 3 is closed and slides to a side away from the first door leaf 2, and the first door leaf 2 is closed, the swing lock rod 15 can rotate to the outside of the first door leaf 2. A first mounting groove 16 and a second mounting groove 17 are respectively provided on the outer surfaces of the first door leaf 2 and the second door leaf 3. The part where the swing lock rod 15 is rotatably connected to the second door leaf 3 is located in the first mounting groove 16. When the free end of the swing lock rod 15 rotates to the side where the first door leaf 2 is located, it can enter the first mounting groove 16. The lower part of the first mounting groove 16 has a first limiting stop 18 for supporting the swing lock rod 15. With the above structure, the first mounting groove 16 and the second mounting groove 17 together form a structure to accommodate the swing lock rod 15, without occupying external space. The first limiting stop 18 is used to limit the position of the swing lock rod 15, maintaining a stable locked state. This door lock has the advantages of simple structure, convenient operation, and low manufacturing cost. In other embodiments of this utility model, the door lock may also adopt other structural forms, such as existing bolts, padlocks, mechanical locks, electronic locks, etc.

[0036] Reference Figure 1 , Figure 10 , Figure 12 In one embodiment of this utility model, the second mounting groove 17 has a second limiting flange 19 on the side away from the first door leaf 2. A limiting protrusion 20 is provided in the second mounting groove 17 near the second limiting flange 19. The swing lock rod 15 has an elastic protrusion 21 on its side near the second door leaf 3. When the free end of the swing lock rod 15 rotates to the side where the second door leaf 3 is located, the protrusion 21 can pass over the limiting protrusion 20 and then be locked in the space between the second limiting flange 19 and the limiting protrusion 20. Because the protrusion 21 has a certain elasticity, it can deform when it passes over the limiting protrusion 20. After passing over the limiting protrusion 20, the protrusion 21 returns to its original shape and is locked in the space between the second limiting flange 19 and the limiting protrusion 20. With the above structure, the second limiting stop 19, the limiting protrusion 20 and the convex edge 21 are combined to keep the unlocked state unchanged and prevent the swing lock rod 15 from rotating arbitrarily after unlocking.

[0037] Reference Figure 1 , Figure 3 In one embodiment of this utility model, the outer surface of the connector 1 is provided with secondary rotating holes 22, secondary limiting grooves 23, secondary sliding grooves 24, and secondary limiting sliding grooves 25, which are symmetrical to the rotating hole 5, limiting groove 6, sliding groove 9, and limiting sliding groove 10. With the above structure, the connector 1 can be used on both sides, and has strong versatility.

[0038] This utility model also discloses a double-door cabinet.

[0039] Reference Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 10 In some embodiments of this utility model, the double-door cabinet includes the above-mentioned double-door installation structure. The connector 1 is a plate-like structure. The double-door cabinet also includes a side wall, which, together with the two connectors 1, forms an accommodating space with an entrance and exit. The first door 2 and the second door 3 are located at the entrance and exit. With the above structure, the double-door cabinet not only has the advantages of a double-door installation structure, but also has a relatively simple overall structure, which helps to reduce manufacturing costs.

[0040] Reference Figure 1 , Figure 5 , Figure 7 , Figure 8 , Figure 10 In some embodiments of this utility model, the side wall includes several wall panels 27, the connector 1 is provided with insertion holes 29, the wall panel 27 is provided with insertion blocks 30, the insertion holes 29 are provided with protruding ribs 31, and the insertion blocks 30 are provided with elastic barbs 32. The insertion blocks 30 can be inserted into the insertion holes 29 so that the barbs 32 pass over the protruding ribs 31 to achieve the insertion and fixation of the wall panel 27 and the connector 1. With the above structure, the double-door cabinet adopts an insertion structure, which is convenient for installation and transportation.

[0041] In some embodiments of this utility model, one or more of the connector 1, the first door leaf 2, the second door leaf 3, and the side wall are injection molded or cast parts. With the above structure, all components of the double-door cabinet can be manufactured using a one-piece molding process, eliminating the need for secondary processing and simplifying the production process.

[0042] Reference Figure 1 , Figure 10 , Figure 11 The usage of this double-door installation structure is as follows.

[0043] 1. Unlocking: Rotate the swing locking rod 15 so that its free end enters the second mounting groove 17 from the first mounting groove 16. The protrusion 21 then passes over the limiting protrusion 20 and gets stuck in the space between the second limiting stop 19 and the limiting protrusion 20, thus completing the unlocking.

[0044] 2. Opening the door: First, make the first door leaf 2 open outwards, and the limiting post 8 slides out from the limiting sliding groove 10, so that the first door leaf 2 is fully open; then make the second door leaf 3 slide towards the side where the first door leaf 2 is located, and the sliding shaft 11 and the sliding limiting post 12 slide along the sliding groove 9 and the sliding groove section 13 of the limiting sliding groove 10, respectively. Next, the sliding limiting post 12 enters the limiting groove section 14 from the sliding groove section 13 of the limiting sliding groove 10, and the second door leaf 3 can open outwards. During the process of the second door leaf 3 opening outwards, the sliding limiting post 12 will slide out from the limiting groove section 14, and the second door leaf 3 can be fully opened.

[0045] 3. Closing the door: First, close the second door leaf 3, and the sliding limit post 12 enters the sliding groove section 13 from the limit groove section 14 of the limit sliding groove 10; then slide the second door leaf 3 away from the first door leaf 2. At this time, the sliding limit post 12 is fully entered into the sliding groove section 13, and the second door leaf 3 cannot be opened horizontally; close the first door leaf 2, and the first flange 33 of the first door leaf 2 presses against the second flange 34 of the second door leaf 3.

[0046] 4. Locking: Rotate the swing lock rod 15 so that its free end enters the first mounting groove 16 from the second mounting groove 17, and the free end of the swing lock rod 15 rests on the first limit stop 18 to achieve locking.

[0047] After locking, the second door leaf 3 cannot be opened horizontally. The free side of the first door leaf 2 presses against the second door leaf 3, preventing the second door leaf 3 from sliding in the opposite direction. The first flange 33 presses against the second flange 34, making the first door leaf 2 and the second door leaf 3 tightly connected. The swing lock rod 15 is stuck on the outside of the first door leaf 2, preventing the second door leaf 3 from opening.

[0048] The advantages of this double-door installation structure are as follows: 1. After locking, the second door leaf 3 cannot slide or open horizontally. The second door leaf 3 is firmly fixed to the connector 1, and the first door leaf 2 is locked using the door lock. The first door leaf 2 and the second door leaf 3 are tightly connected and not easily shaken. 2. When opening the door, it is only necessary to perform the following operations in sequence: unlock the door, open the first door leaf 2 horizontally, slide the second door leaf 3, and open the second door leaf 3. Opening and closing the door is relatively convenient. 3. The first door leaf 2, the second door leaf 3, and the connector 1 are connected by a one-time molded hole, groove, shaft, and column, which achieves the effect of the door leaf not shaking after locking and convenient opening and closing. There are no other parts like bolts, so the structure is simple and the manufacturing cost is low. 4. The connector 1, the first door leaf 2, the second door leaf 3, and the wall panel 27 can be made of injection molding or casting, which simplifies the processing technology and further reduces the manufacturing cost.

[0049] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A double door installation structure comprising upper and lower spaced-apart connecting members (1) between which are installed left and right opposing first and second door leaves (2, 3), the first and second door leaves (2, 3) having free door edges at the parts thereof which are relatively close to each other, characterized in that, The free door edge of the first door leaf (2) can be opened outward, the second door leaf (3) can slide left and right after the first door leaf (2) is opened, and the free door edge of the second door leaf (3) can be opened outward when it is close to the first door leaf (2), and a door lock is arranged between the first door leaf (2) and the second door leaf (3).

2. The double-door mounting structure according to claim 1, wherein The inner surface of the connecting piece (1) is provided with a rotating hole (5) and a limiting groove (6) near the first door leaf (2), the limiting groove (6) penetrates the outer surface of the connecting piece (1), the first door leaf (2) is provided with a rotating shaft (7) and a limiting column (8), the rotating shaft (7) is inserted into the rotating hole (5), and the limiting column (8) is inserted into the limiting groove (6); the inner surface of the connecting piece (1) is provided with a sliding groove (9) and a limiting sliding groove (10) near the second door leaf (3), the second door leaf (3) is provided with a sliding shaft (11) and a sliding limiting column (12), the sliding groove (9) extends along the left and right directions, the limiting sliding groove (10) comprises a sliding groove segment (13) and a limiting groove segment (14), the sliding groove segment (13) extends along the left and right directions, one end of the limiting groove segment (14) is connected with the part of the sliding groove segment (13) away from the sliding groove (9), the other end of the limiting groove segment (14) penetrates the outer surface of the connecting piece (1), the sliding shaft (11) is inserted into the sliding groove (9), and the sliding limiting column (12) is inserted into the limiting sliding groove (10).

3. The double-door mounting structure according to claim 1, wherein The width of the first door leaf (2) is arranged to be able to close the first door leaf (2) and prevent the second door leaf (3) from sliding reversely when the second door leaf (3) slides away from the first door leaf (2) once.

4. The double-door mounting structure according to claim 1, wherein The part near the outer surface of the free door edge of the first door leaf (2) is provided with a first flange (33), the part near the inner surface of the free door edge of the second door leaf (3) is provided with a second flange (34), and the first flange (33) and the second flange (34) are staggered left and right when the first door leaf (2) and the second door leaf (3) are both closed.

5. The double-door mounting structure according to claim 1, wherein The door lock comprises a swing lock rod (15) rotatably connected to the second door leaf (3), and the swing lock rod (15) can rotate to the outer side of the first door leaf (2) when the second door leaf (3) is closed and slides to the side away from the first door leaf (2) and the first door leaf (2) is closed. The parts near the outer surfaces of the first door leaf (2) and the second door leaf (3) are respectively provided with a first mounting groove (16) and a second mounting groove (17), the part where the swing lock rod (15) is rotatably connected to the second door leaf (3) is located in the first mounting groove (16), and the free end of the swing lock rod (15) can enter the first mounting groove (16) when it rotates to the side where the first door leaf (2) is located. The lower part of the first mounting groove (16) has a first limiting baffle (18) for supporting the swing lock rod (15).

6. The double-door mounting structure according to claim 5, wherein The second installation slot (17) has a second limiting baffle (19) away from one side of the first door leaf (2), a limiting protrusion (20) is arranged at a position close to the second limiting baffle (19) in the second installation slot (17), an elastic convex edge (21) is arranged on the side of the swing lock rod (15) close to the second door leaf (3), when the free end of the swing lock rod (15) rotates to the side where the second door leaf (3) is located, the convex edge (21) can pass the limiting protrusion (20) and be clamped in the space between the second limiting baffle (19) and the limiting protrusion (20).

7. The double-door mounting structure according to claim 2, wherein The outer surface of the connecting piece (1) is provided with a secondary rotating hole (22), a secondary limiting groove (23), a secondary sliding groove (24) and a secondary limiting sliding groove (25) which are symmetrical with the rotating hole (5), the limiting groove (6), the sliding groove (9) and the limiting sliding groove (10).

8. A double-door cabinet comprising the double-door mounting structure according to any one of claims 1 to 7, characterized in that, The connecting piece (1) is a plate-shaped structure, and the double-door cabinet further comprises a side wall, the side wall and the two connecting pieces (1) jointly form a containing space with an entrance and exit, and the first door leaf (2) and the second door leaf (3) are located at the entrance and exit.

9. The dual-door cabinet of claim 8, wherein, The side wall comprises a plurality of wall plates (27), the connecting piece (1) is provided with a bushing (29), the wall plate (27) is provided with an insertion block (30), the bushing (29) is provided with a convex rib (31), and the insertion block (30) is provided with an elastic barb (32), the insertion block (30) can be inserted into the bushing (29) to make the barb (32) pass the convex rib (31) to realize the plug-in fixing of the wall plate (27) and the connecting piece (1).

10. The dual-door cabinet of claim 8, wherein, One or more of the connecting piece (1), the first door leaf (2), the second door leaf (3) and the side wall are injection molded or casted.

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