Interlocking device for drawer cabinet and drawer cabinet

Abstract

The embodiment of the utility model provides an interlocking device for a drawer cabinet and the drawer cabinet. The method includes a locking mechanism including: a bracket coupled to the drawer; a driving plate; and a locking plate; the limiting mechanism is arranged in the drawer, located between the handle of the drawer and the locking mechanism and suitable for limiting the locking plate from exiting the locking hole when the handle is in the closing position, and the limiting mechanism comprises a fixing plate coupled to the drawer; the cam crank arm is coupled to a handle of the drawer and is suitable for rotating between a switching-off position and a switching-on position along with the handle; and the limiting piece is coupled to the fixed plate and is suitable for being driven by the cam connecting lever to move so as to limit the driving plate to slide towards the unlocking position when the cam connecting lever rotates from the opening position to the closing position. Therefore, the drawer and the fixing part can be locked when the drawer is closed, and the electrical safety of the drawer cabinet is improved.

Description

TECHNICAL FIELD

[0001] Example embodiments of the present disclosure generally relate to the field of electrical equipment, and in particular, to an interlocking device for a drawer cabinet and a drawer cabinet. BACKGROUND

[0002] A drawer cabinet is a kind of power distribution equipment composed of a cabinet frame, a drawer unit, a busbar system, an operating mechanism and the like. It has the characteristics of high safety, good flexibility and easy maintenance due to its drawer-type modular design, and is widely used in the fields of industry, building electrical and power systems. SUMMARY

[0003] In a first aspect of the present disclosure, an interlocking device for a drawer cabinet is provided. The interlocking device comprises: a locking mechanism arranged in a drawer of the drawer cabinet, and comprising: a bracket coupled to the drawer; a driving plate movably coupled to the bracket and adapted to slide in a first direction between a locked position and an unlocked position; and a locking plate coupled to the driving plate and slidably connected with the bracket in a second direction to slide out of a locking hole of a fixed part of the drawer cabinet during the driving plate slides from the locked position to the unlocked position, the second direction having a predetermined non-zero included angle with the first direction; and a limiting mechanism arranged in the drawer between a handle of the drawer and the locking mechanism, and adapted to limit the locking plate from exiting the locking hole during the handle is in a closed position, the limiting mechanism comprising: a fixed plate coupled to the drawer; a cam lever coupled to the handle of the drawer and adapted to rotate with the handle between an open position and the closed position; and a limiting member coupled to the fixed plate and adapted to be driven by the cam lever to displace to limit the driving plate from sliding to the unlocked position during the cam lever rotates from the open position to the closed position.

[0004] In some embodiments, the locking mechanism further comprises: at least one first sliding hole formed on the bracket, an axis of the at least one first sliding hole extending in the first direction and partially accommodating the driving plate to allow the driving plate to slide in the first direction between the locked position and the unlocked position within the at least one first sliding hole.

[0005] In some embodiments, the locking mechanism further comprises: at least one second sliding hole formed on the bracket, an axis of the at least one second sliding hole extending in the second direction and adapted to at least partially accommodate the locking plate to allow the locking plate to slide in the second direction within the at least one second sliding hole.

[0006] In some embodiments, the locking mechanism further comprises: a first sliding groove formed on the driving plate and comprising a locking end and an unlocking end, the distance from the unlocking end to the fixed part being greater than the distance from the locking end to the fixed part; and a first stepped screw arranged in the first sliding groove and coupled to the locking plate, and adapted to move from the locking end to the unlocking end of the first sliding groove and drive the locking plate to exit the locking hole during the driving plate slides from the locked position to the unlocked position.

[0007] In some embodiments, the locking mechanism further comprises a spring, one end of which is coupled to the driving plate and the other end of which is coupled to the bracket.

[0008] In some embodiments, the cam lever comprises a coupling portion, a driving hole formed in the coupling portion and coupled to the handle driving shaft of the drawer, adapted to rotate with the handle driving shaft, and a driving portion coupled to the coupling portion and adapted to extend in a radial direction perpendicular to the axis of the driving hole.

[0009] In some embodiments, the limiting member comprises a first limiting plate movably coupled to the fixed plate and adapted to be driven by the cam lever to limit the sliding of the driving plate to the unlocking position, the first limiting plate comprising a first sliding portion slidably coupled to the fixed plate in the third direction, a first accommodating hole formed on the first sliding portion and adapted to be partially penetrated by the cam lever, and a first stop portion coupled to a side of the first sliding portion facing the locking mechanism, adapted to slide with the first sliding portion in the third direction and to be latched with the driving plate to limit the sliding of the driving plate to the unlocking position during the cam lever is in the closed position.

[0010] In some embodiments, the accommodating hole comprises a first wall arranged at one end of the third direction close to the locking mechanism and adapted to be contacted by the cam lever during the rotation of the cam lever from the open position to the closed position, and a second wall arranged at one end of the third direction away from the locking mechanism and adapted to be contacted by the cam lever during the rotation of the cam lever from the closed position to the open position.

[0011] In some embodiments, the limiting member comprises a connecting member coupled to the driving plate and adapted to slide in the fourth direction during the sliding of the driving plate from the locking position to the unlocking position, the fourth direction having a predetermined third non-zero included angle with the first direction, and a second limiting plate movably coupled to the fixed plate and adapted to be driven by the cam lever to limit the sliding of the connecting member in the fourth direction, the second limiting plate comprising a second sliding portion slidably coupled to the fixed plate and adapted to slide in a fifth direction during the rotation of the cam lever from the open position to the closed position, the fifth direction having a predetermined fourth non-zero included angle with the fourth direction, a second accommodating hole formed on the second sliding portion and coupled to the cam lever, and a second stop portion coupled to the second sliding portion and adapted to slide with the sliding portion in the fifth direction and to be coupled to the connecting member to limit the sliding of the connecting member in the fourth direction during the cam lever is in the closed position.

[0012] In some embodiments, the connecting member comprises: a connecting arm coupled to the bracket and slidingly connected with the bracket along a fourth direction; a second sliding groove formed on the connecting arm and comprising a shielding end and an avoiding end; and a second stepped screw arranged in the second sliding groove and coupled with the driving plate to move from the shielding end to the avoiding end of the second sliding groove and drive the connecting arm to slide along the fourth direction during the driving plate sliding from the locking position to the unlocking position.

[0013] In some embodiments, the connecting member further comprises a clamping groove formed on a side of the connecting arm facing the second limiting plate and extending along a fifth direction to accommodate the second stop portion.

[0014] In some embodiments, the connecting member further comprises a shielding portion coupled to the connecting arm and adapted to expose at least the handle insertion hole of the drawer during the driving plate moving from the locking position to the unlocking position.

[0015] In some embodiments, the second accommodating hole comprises: a third wall arranged at one end of the second accommodating hole along the fifth direction and adapted to contact the cam lever during the cam lever rotating from the open position to the closed position; and a fourth wall arranged at the other end of the second accommodating hole along the fifth direction relative to the one end and adapted to contact the cam lever during the cam lever being in the closed position.

[0016] According to some embodiments of the present disclosure, the locking mechanism can fix the drawer with the fixed portion, and the limiting mechanism coupled to the drawer handle can limit the action of the locking mechanism when the handle is in the closed position, so that the drawer and the fixed portion remain fixed during the drawer being closed, thereby improving the electrical safety of the drawer cabinet.

[0017] In a second aspect of the present disclosure, a drawer cabinet is provided. The drawer cabinet comprises: a cabinet body;

[0018] a fixed portion fixedly coupled to the cabinet body; a drawer arranged on the fixed portion and slidingly connected with the fixed portion; and an interlocking device according to the first aspect of the present disclosure coupled to the drawer to interlock the drawer and the fixed portion during the drawer being closed.

[0019] It should be understood that the content described in this part is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become apparent through the following description. BRIEF DESCRIPTION OF DRAWINGS

[0020] The above and other features, advantages, and aspects of embodiments of the present disclosure will become more apparent by describing in detail some embodiments with reference to the attached drawings. In the drawings, the same or similar reference numerals refer to the same or similar elements, in which:

[0021] Figure 1A partial structural schematic of a drawer cabinet is shown according to some embodiments of the present disclosure;

[0022] Figure 2A A schematic of an interlocking device in a closed state is shown according to some embodiments of the present disclosure;

[0023] Figure 2B A schematic of an interlocking device in a closed and locked state is shown according to some embodiments of the present disclosure;

[0024] Figure 2C A schematic of an interlocking device in an open and unlocked state is shown according to some embodiments of the present disclosure;

[0025] Figure 3A A schematic of an interlocking device in a closed state is shown according to some other embodiments of the present disclosure;

[0026] Figure 3B A schematic of an interlocking device in a closed and locked state is shown according to some other embodiments of the present disclosure;

[0027] Figure 3C A schematic of an interlocking device in an open and unlocked state is shown according to some other embodiments of the present disclosure;

[0028] Figure 4A A schematic of a locking mechanism in a locked state is shown according to some embodiments of the present disclosure;

[0029] Figure 4B A schematic of a locking mechanism in an unlocked state is shown according to some embodiments of the present disclosure;

[0030] Figure 4C A schematic of a locking mechanism from another perspective is shown according to some embodiments of the present disclosure;

[0031] Figure 5A A schematic of a limiting mechanism when the drawer is in a closed state is shown according to some embodiments of the present disclosure;

[0032] Figure 5B A schematic of a limiting mechanism when the drawer is in an open state is shown according to some embodiments of the present disclosure;

[0033] Figure 5C An exploded view of a limiting mechanism is shown according to some embodiments of the present disclosure;

[0034] Figure 6 A schematic of the overall structure of a cam crank is shown according to some embodiments of the present disclosure;

[0035] Figure 7A A schematic of a locking mechanism in a locked state is shown according to some other embodiments of the present disclosure;

[0036] Figure 7B A schematic view showing the locking mechanism in an unlocked state according to some other embodiments of the present disclosure is shown;

[0037] Figure 7C A schematic view showing the locking mechanism in an unlocked state according to some other embodiments of the present disclosure is shown;

[0038] Figure 8A A schematic view showing the locking mechanism in an unlocked state according to some other embodiments of the present disclosure is shown;

[0039] Figure 8B A schematic view showing the locking mechanism in an unlocked state according to some other embodiments of the present disclosure is shown;

[0040] Figure 8C A schematic view showing the locking mechanism in an unlocked state according to some other embodiments of the present disclosure is shown; DETAILED DESCRIPTION

[0041] Embodiments of the present disclosure will be described in more detail with reference to the drawings. While certain embodiments of the present disclosure are shown in the drawings, it is understood that the present disclosure can be embodied in various forms and should not be interpreted as being limited to the embodiments set forth herein, but rather, these embodiments are provided for more complete and thorough understanding of the present disclosure. It is understood that the drawings of the present disclosure and the embodiments are for exemplary purposes only and are not intended to limit the scope of protection of the present disclosure.

[0042] It should be noted that the headings provided herein are not limitations of the present disclosure. Various embodiments are described throughout this document and any type of embodiment can be included under any heading. Furthermore, embodiments described in any heading can be combined with any other embodiment described in the same heading and / or in a different heading in any manner.

[0043] In the description of embodiments of the present disclosure, the term "includes" and its derivatives are to be interpreted as including without limitation. The term "based on" is to be interpreted as "based, at least in part, on." The term "one embodiment" or "an embodiment" are to be interpreted as "at least one embodiment." The term "some embodiments" are to be interpreted as "at least some embodiments." Other explicit and implicit definitions can also be included below. The terms "first," "second," etc. can refer to different or same objects. Other explicit and implicit definitions can also be included below.

[0044] As briefly mentioned above, in the conventional art, the drawers of the drawer cabinet are arranged on the fixed portion of the drawer cabinet and are adapted to slide relative to the fixed portion in a depth direction perpendicular to the user side. If the drawer slides to a predetermined position (for example, a working position) relative to the fixed portion, the incoming line terminal and / or outgoing line terminal on the side of the drawer facing away from the user can be coupled with the corresponding incoming and / or outgoing line mechanisms in the drawer cabinet. In this state, the user can operate the closing handle of the drawer to perform the closing operation. In order to ensure electrical safety during the operation of the drawer cabinet, it is required that the drawer and the fixed portion be fixed to each other during the closing of the drawer. That is, the closed state of the drawer is interlocked with the sliding state of the drawer relative to the fixed portion. The existing interlocking device has a complex structure, and the user has cumbersome operations when using the interlocking device to contact the interlock.

[0045] The interlocking device for a drawer cabinet and the drawer cabinet provided by the present disclosure solve or at least partially solve the above-mentioned problems and other potential problems existing in traditional solutions. According to some embodiments of the present disclosure, the interlocking device for the drawer cabinet secures the drawer to the fixed portion through a locking mechanism, and a limiting mechanism coupled to the drawer handle can limit the movement of the locking mechanism while the handle is closed, so that the drawer and the fixed portion remain in a fixed state during the drawer closing period, thereby improving the electrical safety of the drawer cabinet.

[0046] Figure 1 FIG. 1 shows a partial structural diagram of a drawer cabinet according to some embodiments of the present disclosure. Figure 1 As shown, the drawer cabinet generally includes a cabinet frame, at least one fixed portion 1 coupled to the cabinet frame, and at least one drawer 2 coupled to the fixed portion 1. In some embodiments, the drawer cabinet may include a plurality of fixed portions 1, which are arranged in the cabinet frame along the direction of gravity, and a predetermined interval is left between two adjacent fixed portions 1, and a plurality of drawers 2 can be respectively arranged in the interval between two adjacent fixed portions 1. The drawer 2 is coupled to the fixed portion 1 and is suitable for sliding relative to the fixed portion 1 in the depth direction close to or away from the user. In some embodiments, the drawer 2 can slide relative to the fixed portion 1 to a plurality of predetermined positions of the drawer 2 (for example, a working position, a detection position, or a disconnection position, etc.) to achieve corresponding functions at different predetermined positions. For example, the drawer 2 can be coupled with the incoming line mechanism and / or the outgoing line mechanism in the drawer cabinet when in the working position, so that after the drawer 2 is closed, the drawer 2 can distribute the power of the incoming line mechanism to the corresponding outgoing line mechanism.

[0047] Figures 2A-2C Schematic diagrams of interlocking devices in different working states according to some embodiments of the present disclosure are respectively shown. Figures 3A-3C Schematic diagrams of interlocking devices in different working states according to some other embodiments of the present disclosure are shown respectively. Figures 2A-2C as well as Figures 3A-3CAs shown, the interlocking device 3 is also provided in the drawer 2, and is adapted to interlock the closing state of the drawer 2 and the locking state of the drawer 2 and the fixed part 1 during the closing of the drawer 2. Specifically, the interlocking device 3 generally comprises a locking mechanism 4 for locking the drawer 2 and the fixed part 1, and a limiting mechanism 5 arranged between the handle 21 of the drawer 2 and the locking mechanism 4. The limiting mechanism 5 is adapted to contact the locking mechanism 4 during the handle 21 is in the closing position, and limit the action of the locking mechanism 4 to maintain the locking state of the drawer 2 and the fixed part 1.

[0048] Figure 2A A schematic view of the interlocking device in the closing state according to some embodiments of the present disclosure is shown, Figure 3A A schematic view of the interlocking device in the closing state according to some other embodiments of the present disclosure is shown. As Figure 2A and Figure 3A As shown, if the drawer 2 is in the working position, the locking mechanism 4 can lock the drawer 2 and the fixed part 1 to limit the sliding of the drawer 2 relative to the fixed part 1. Thus, it is ensured that the drawer 2 and the cabinet 2 are stably connected after the drawer 2 is closed. On this basis, the limiting mechanism 5 can limit the action of the locking mechanism 4 to limit the unlocking of the drawer 2 and the fixed part 1.

[0049] Figure 2B A schematic view of the interlocking device 3 in the open locking state according to some embodiments of the present disclosure is shown, Figure 3B A schematic view of the interlocking device in the open locking state according to some other embodiments of the present disclosure is shown. As Figure 2B and Figure 3B As shown, the user can operate the handle 21 of the drawer 2 (for example, rotate the handle 21 of the drawer 2 around a fixed axis) to switch the working state of the drawer 2 from the closing to the opening. At this time, although the locking mechanism 4 still maintains the locking of the drawer 2 and the fixed part 1, the limiting mechanism 5 releases the limitation on the action of the locking mechanism 4. The user can operate the locking mechanism 4 as needed to unlock the drawer 2 and the fixed part 1.

[0050] Figure 2C A schematic view of the interlocking device in the open unlocking state according to some embodiments of the present disclosure is shown, Figure 3C A schematic view of the interlocking device in the open unlocking state according to some other embodiments of the present disclosure is shown. As Figure 2C and Figure 3C As shown, the user can operate the locking mechanism 4 and release the locking of the drawer 2 and the fixed part 1, and then the drawer 2 can slide between different positions relative to the fixed part 1.

[0051] In addition, in some embodiments, if the locking mechanism 4 is in the unlocked state, the locking mechanism 4 can also be coupled with the limiting mechanism 5 to limit the closing of the drawer 2. The locking mechanism 4 and the limiting mechanism 5 will be described in more detail below.

[0052] Figure 4A 、 Figure 4B respectively show schematic diagrams of the locking mechanism in the locked state and the unlocked state according to some embodiments of the present disclosure, Figure 4C show schematic diagrams of the locking mechanism from other perspectives according to some embodiments of the present disclosure. As shown in Figures 4A-4C The locking mechanism 4 includes a bracket 41 arranged in the drawer 2 and coupled with the bottom surface of the drawer 2 facing the fixed part 1. The bracket 41 is provided with a locking plate 42, which is in sliding connection with the bracket 41 in a second direction D2 having a non-zero angle with the plane in which the bottom surface lies. The fixed part 1 is provided with a fixing hole 11 on the side facing the drawer 2. When the locking plate 42 slides in the second direction D2 towards the fixed part 1, one end of the locking plate 42 can pass through the bottom surface of the drawer 2 and at least partially insert into the fixing hole 11. In this way, the locking plate 42 can fix the drawer 2 with the fixed part 1.

[0053] In some embodiments, the bracket 41 is formed with at least one second sliding hole 412, the axis of the at least one second sliding hole 412 extends in the second direction D2, and the locking plate 42 is inserted into the at least one second sliding hole 412, and the locking plate 42 can slide in the second direction D2 under the limitation of the at least one second sliding hole 412. In some embodiments, the bracket 41 is formed with two second sliding holes 412, the two second sliding holes 412 are axially aligned, and the locking plate 42 is inserted into the two second sliding holes 412 at the same time.

[0054] In some embodiments, the fixed part 1 is formed with a plurality of fixing holes 11, the plurality of fixing holes 11 are arranged in the depth direction of the drawer 2 sliding, and the plurality of fixing holes 11 correspond to a plurality of predetermined positions (such as working position, detection position and disconnection position, etc.) of the drawer 2 respectively. In this way, the locking plate 42 can fix the drawer 2 at a plurality of positions of the fixed part 1.

[0055] The driving plate 43 is slidably connected to the bracket 41 along the first direction D1, and can slide from the locking position to the unlocking position under the operation of the user. In some embodiments, the first direction D1 of the sliding of the driving plate 43 can be parallel to the direction of the movement of the drawer 2 relative to the fixed part 1 (i.e., the depth direction). In some embodiments, at least one first sliding hole 411 is formed on the bracket 41, the axis of the at least one first sliding hole 411 extends along the first direction D1, and the driving plate 43 is partially arranged in the first sliding hole 411, so that the driving plate 43 can slide along the first direction D1 under the limitation of the first sliding hole 411. In some embodiments, two first sliding holes 411 are formed on the bracket 41, the two first sliding holes 411 are aligned on the axis, the driving plate 43 passes through the two first sliding holes 411 respectively, and the driving plate 43 slides along the first direction D1 relative to the bracket 41.

[0056] The driving plate 43 is coupled to the locking plate 42, and the first direction D1 of the sliding of the driving plate 43 and the second direction D2 of the sliding of the locking plate 42 have a non-zero included angle. During the operation of the driving plate 43 from the locking position to the unlocking position, the driving plate 43 can drive the locking plate 42 to slide and make the locking plate 42 exit the fixed hole 11, thereby contacting the locking of the drawer 2 and the fixed part 1. Specifically, the driving plate 43 is formed with a first sliding groove 431, and the first sliding groove 431 includes a locking end and an unlocking end. The distance from the unlocking end to the fixed part 1 is greater than the distance from the locking end to the fixed part 1. A first stepped screw 432 is arranged in the first sliding groove 431, and the first stepped screw 432 is coupled to the locking plate 42. Thus, during the sliding of the driving plate 43 from the locking position to the unlocking position, the first stepped screw 432 moves from the locking end to the unlocking end of the first sliding groove 431. Through the contact between the inner wall of the first sliding groove 431 and the first stepped screw 432, the driving locking plate 42 moves along the second direction D2, and the driving plate 43 exits the fixed hole 11, thereby releasing the locking of the locking mechanism 4 to the drawer 2 and the fixed part 1.

[0057] In some embodiments, the locking mechanism 4 further includes a spring 44, which is arranged between the bracket 41 and the driving plate 43 and is adapted to provide an elastic force to the driving plate 43, so that the driving plate 43 can be kept in the locking position during the non-operation of the user. For example, the spring 44 can be compressed during the sliding of the driving plate 43 from the locking position to the unlocking position under the operation of the user. After the operation of the user ends, the spring 44 pushes the driving plate 43 to return from the unlocking position to the locking position. In some embodiments, the driving plate 43 includes a mounting column 433 extending along the first direction D1, the spring 44 is sleeved on the extending column, and a section of the spring 44 abuts against the bracket 41.

[0058] Figures 5A-5CSchematic diagrams of the limiting mechanism according to some embodiments of the present disclosure are respectively shown, wherein Figure 5A A schematic diagram showing a limit mechanism according to some embodiments of the present disclosure when the drawer is in a closed state is shown. Figure 5B A schematic diagram showing a limit mechanism according to some embodiments of the present disclosure when the drawer is in an open state is shown. Figure 5C FIG. 1 shows an exploded view of a limiting mechanism according to some embodiments of the present disclosure. Figures 5A-5C As shown, the limiting mechanism 5 includes a fixed plate 51 coupled to the drawer 2, a cam arm 52 pivotally arranged on the fixed plate 51, and a limiting member slidably connected to the fixed plate 51. The cam arm 52 is coupled to the handle 21 of the drawer 2 and is adapted to rotate about an axis between a closed and an open position in response to the closing and opening operations of the handle 21. As the cam arm 52 rotates from the open position to the closed position with the handle 21, the limiting member is driven by the cam arm 52 to displace, thereby restricting the locking mechanism 4 from performing an unlocking operation.

[0059] Figure 6 FIG. 1 shows a schematic diagram of the overall structure of a cam arm according to some embodiments of the present disclosure. Figure 6 As shown, in some embodiments, the cam arm 52 includes a coupling portion 521, a drive hole 522 formed in the coupling portion 521, and a drive portion 523 coupled to the coupling portion 521. The coupling portion 521 is arranged on the fixed plate 51 and is adapted to rotate relative to the fixed plate 51 about an axis. The drive hole 522 is aligned with the coupling portion 521 on the axis. The drive hole 522 is adapted to allow the drive shaft of the handle 21 to pass through and is driven by the drive shaft to rotate the coupling portion 521 about the axis. The drive portion 523 is arranged on a side of the drive portion 523 that deviates from the axis and extends in a radial direction perpendicular to the axis.

[0060] Return Reference Figure 5C ,like Figure 5C As shown, in some embodiments, the limiting member includes a first limiting plate 53, which is movably coupled to the fixed plate 51 and coupled to the driving portion 523 of the cam arm 52. Driven by the cam arm 52, the limiting plate 53 slides relative to the fixed portion 1 in the third direction D3. The first limiting plate 53 includes a first sliding portion 531, a first receiving hole 532 formed in the first sliding portion 531, and a first stopper 533 coupled to the side of the first sliding portion 531 facing the locking mechanism 4. The first sliding portion 531 partially penetrates the fixed plate 51 and is adapted to be slidably connected to the fixed plate 51 in the third direction D3. The cam arm 52 is disposed within the first receiving hole 532. As the cam arm 52 rotates about its axis, the driving portion 523 of the cam arm 52 contacts the corresponding sidewall of the first receiving hole 532, pushing the first limiting plate 53 to slide in the third direction D3.

[0061] In some embodiments, the first accommodating hole 532 comprises a first wall 534 and a second wall 535, the first wall 534 is arranged at one end of the locking mechanism 4 in the third direction D3, and is adapted to contact the cammed lever 52 during the rotation of the cammed lever 52 from the open position to the closed position, the cammed lever 52 pushes the first wall 534 to drive the first limiting plate 53 to slide along the third direction D3 towards the locking mechanism 4, so that the first stop portion 533 of the first limiting plate 53 moves to the path of the driving plate 43 sliding from the locking position to the unlocking position. In this way, the first stop portion 533 can limit the sliding of the driving plate 43 to the unlocking position, thereby limiting the unlocking of the locking mechanism 4.

[0062] The second wall 535 is arranged at one end of the locking mechanism 4 in the third direction D3, and is adapted to contact the cammed lever 52 during the rotation of the cammed lever 52 from the closed position to the open position. During the rotation of the cammed lever 52 from the closed position to the open position, the cammed lever 52 pushes the second wall 535 and drives the first limiting plate 53 to move away from the locking mechanism 4 along the third direction D3. In this way, the first stop portion 533 of the first limiting plate 53 can avoid the path of the driving plate 43 sliding from the locking position to the unlocking position. That is, the locking mechanism 4 can be unlocked by the user to release the locking of the drawer 2 and the fixed part 1. In some embodiments, if the locking mechanism 4 is in the unlocked state, the driving plate 43 can contact the first stop portion 533 of the first limiting plate 53 and limit the sliding of the first limiting plate 53 to the locking mechanism 4, thereby limiting the rotation of the cammed lever 52 from the open position to the closed position.

[0063] In this way, the interlocking device 3 realizes the interlocking of the locking state of the drawer 2 and the fixed part 1 and the closed state of the handle 21 of the drawer 2 through the locking mechanism 4 and the limiting mechanism 5. During the closed state of the drawer 2, the drawer 2 and the fixed part 1 can be fixed, thereby improving the electrical safety during the operation of the drawer 2. Moreover, during the installation of the drawer 2 to the predetermined position (during the installation of the drawer 2 to the predetermined position, the locking mechanism 4 needs to remain in the unlocked state), it is ensured that the drawer 2 is in the closed position, thereby improving the safety of the operation and maintenance of the drawer 2.

[0064] Figure 7A 、 Figure 7B respectively show the schematic diagrams of the locking mechanism in the locked state and the unlocked state according to some other embodiments of the present disclosure, Figure 7C show the schematic diagrams of the locking mechanism from other perspectives according to some other embodiments of the present disclosure. In some embodiments, the locking mechanism 4 can also be a structure as shown in Figures 7A-7C . As shown in Figures 7A-7CAs shown, the bracket 41 of the locking mechanism 4 is coupled at the bottom of the drawer 2, and the driving plate 43 is coupled to the bracket 41 through two first sliding holes 411 formed on the bracket 41 and is in sliding connection with the bracket 41 along the first direction D1. The locking plate 42 is coupled to the bracket 41 through two second sliding holes 412 formed on the bracket 41 and is in sliding connection with the bracket 41 along the second direction D2.

[0065] The side of the driving plate 43 facing the bracket 41 is provided with a first sliding groove 431, and a first stepped screw 432 is arranged in the first sliding groove 431 and is coupled to the locking plate 42. In this way, during the sliding of the driving plate 43 from the locking position to the unlocking position, the first stepped screw 432 slides from the locking end to the unlocking end of the first sliding groove 431, so that the first stepped screw 432 drives the locking plate 42 to exit the fixing hole 11. The driving plate 43 is also integrally formed with a mounting column 433, and a spring 44 is sleeved on the mounting column 433 and abuts against the bracket 41. The spring 44 can provide an elastic force between the bracket 41 and the driving plate 43, so that the driving plate 43 can be kept in the locking position without being operated by the user. In this way, the stability of the locking mechanism 4 in locking the drawer 2 to the fixed part 1 can be improved.

[0066] Figures 8A-8C respectively show schematic diagrams of the limiting mechanism according to some other embodiments of the present disclosure, wherein Figure 8A shows a schematic diagram of the limiting mechanism according to some embodiments of the present disclosure when the drawer is in the closed state, Figure 8B shows a schematic diagram of the limiting mechanism according to some embodiments of the present disclosure when the drawer is in the open state, Figure 8C shows an exploded view of the limiting mechanism according to some embodiments of the present disclosure. As Figures 8A-8C As shown, in some embodiments, the limiting member includes a connecting member 55 coupled to the locking mechanism 4 and a second limiting plate 54 coupled to the fixed plate 51.

[0067] The connecting member 55 is adapted to slide along the fourth direction D4 under the driving of the locking plate 42 of the locking mechanism 4, the second limiting plate 54 is adapted to move along the fifth direction D5 under the driving of the cam crank 52, and the second limiting plate 54 can also be coupled to the connecting member 55 after the cam crank 52 is turned to the closed position and limit the sliding of the connecting member 55 along the fourth direction D4, thereby limiting the unlocking of the locking mechanism 4.

[0068] As Figures 7A-7CAs shown, in some embodiments, the connector 55 includes a connecting arm 551 that partially penetrates the bracket 41 of the locking mechanism 4 and slides relative to the bracket 41 along the fourth direction D4. A second slideway 552 is formed on the connecting arm 551. The second slideway 552 includes a shielded end and a relief end. The direction in which the second slideway 552 extends from the shielded end to the relief end forms a predetermined non-zero angle with the first direction D1 in which the drive plate 43 slides and the fourth direction D4 in which the connecting arm 551 slides. A second stepped screw 553 is also disposed within the second slideway 552. The second stepped screw 553 is coupled to the drive plate 43. When the drive plate 43 slides from the locked position to the unlocked position, the second stepped screw 553 moves from the shielded end of the second slideway 552 to the relief end, driving the connecting arm 551 to slide along the first direction D1. The connecting arm 551 also defines a latching slot 554 that extends along the fifth direction D5.

[0069] like Figures 8A-8C As shown, in some embodiments, the second limiting plate 54 includes a second sliding portion 541, a second receiving hole 542 formed in the second sliding portion 541, and a second stop portion 543. The second receiving hole 542 is adapted to at least partially receive the cam arm 52 and to contact the cam arm 52 during rotation of the cam arm 52 between the closed position and the open position, thereby driving the second limiting plate 54 to slide along the fifth direction D5.

[0070] Specifically, the second receiving hole 542 includes a third wall 544, which is arranged at one end of the second receiving hole 542 along the fifth direction D5. The third wall 544 is adapted to contact the cam arm 52 during rotation of the cam arm 52 from the open position to the closed position. The cam arm 52 then pushes the second limiting plate 54 to slide along the fifth direction D5, causing the second stop portion 543 of the second limiting plate 54 to engage with the slot 554 of the connector 55. The engagement between the second stop portion 543 and the slot 554 restricts the connector 55 from sliding along the fourth direction D4, thereby preventing the locking mechanism 4 from performing an unlocking operation.

[0071] The second receiving hole 542 further includes a fourth wall 545, which is disposed at the other end of the second receiving hole 542 along the fifth direction D5 and is adapted to contact the cam arm 52 when the cam arm 52 is in the closed position. The cam arm 52 pushes against the fourth wall 545, causing the second limiting plate 54 to slide along the fifth direction D5 and allowing the second stop portion 543 to exit the slot 554 of the connector 55, thereby releasing the limiting member from limiting the connector 55.

[0072] In addition, when the locking mechanism 4 is in the unlocked state, the stop portion of the second limiting plate 54 cannot enter the card slot 554 along the fifth direction D5, thereby achieving that the drawer 2 cannot perform the closing operation while the drawer 2 is in the unlocked state.

[0073] Referring back Figures 3A-3C In some embodiments, the drawer 2 is further provided with a rocker arm mechanism 6, which includes a spiral groove cam arranged in the drawer 2 and a driving member coupled to the fixed part 1. The spiral groove cam can be rotated about an axis under the driving of a rotating handle, and the driving member is provided with a driving groove on the side facing the spiral groove cam, which threadedly cooperates with the spiral groove of the spiral groove cam. The drawer 2 is further provided with a handle insertion hole for the rotating handle to be inserted and coupled to the spiral groove cam. Thus, after the rotating handle is inserted into the handle insertion hole and coupled to the spiral groove cam, the spiral groove cam is rotated about the axis, and the drawer 2 is caused to slide relative to the fixed part 1 through the cooperation between the driving member and the spiral groove cam.

[0074] Correspondingly, the connecting member 55 further includes a shielding part 555 coupled to the connecting arm 551 and adapted to shield the handle insertion hole during the locking mechanism 4 is in the locked state, so as to prevent the rotating handle from being inserted into the handle insertion hole. In this way, the drawer 2 and the fixed part 1 can be further locked, and the reliability of the coupling between the drawer 2 and the fixed part 1 during the closing of the drawer 2 can be improved.

[0075] The implementations of the disclosure have been described above with the foregoing description being exemplary rather than limiting in nature, and are not exhaustive, and are not limited to the disclosed implementations. Many modifications and variations to the described implementations will be apparent to those skilled in the art without departing from the scope and spirit of the described implementations. The choice of words in this document is intended to best explain the principles of the implementations, practical application, or improvement to the technology in the market, or to enable other ordinary skilled persons in the art to understand the various implementations disclosed herein.

Claims

1. An interlocking device for a drawer cabinet, characterized in that: include: A locking mechanism (4) is arranged in a drawer (2) of the drawer cabinet and comprises: a bracket (41) coupled to the drawer (2); a drive plate (43) movably coupled to the bracket (41) and adapted to slide along a first direction (D1) between a locked position and an unlocked position; and a locking plate (42) coupled to the drive plate (43) and slidably connected to the bracket (41) along a second direction (D2) so as to slide along the second direction (D2) and exit the locking hole of the fixed portion (1) of the drawer cabinet during the sliding movement of the drive plate (43) from the locked position to the unlocked position, wherein the second direction (D2) has a predetermined non-zero angle with the first direction (D1); and A limiting mechanism (5) is arranged in the drawer (2) and located between the handle (21) of the drawer (2) and the locking mechanism (4), the limiting mechanism (5) being adapted to limit the locking plate (42) from exiting the locking hole when the handle (21) is in a closed position, the limiting mechanism (5) comprising: a fixing plate (51) coupled to the drawer (2); A cam arm (52) coupled to the handle (21) of the drawer (2) and adapted to rotate with the handle (21) between an open position and a closed position; and A limiter is coupled to the fixed plate (51) and is adapted to be driven by the cam arm (52) to move during the period when the cam arm (52) rotates from the opening position to the closing position to limit the driving plate (43) from sliding toward the unlocking position.

2. The interlocking device according to claim 1, characterized in that: The locking mechanism (4) further comprises: At least one first sliding hole (411) is formed on the bracket (41), the axis of the at least one first sliding hole (411) extending along the first direction (D1) and partially accommodating the drive plate (43) to allow the drive plate (43) to slide along the first direction (D1) within the first sliding hole (411) between the locked position and the unlocked position.

3. The interlocking device (3) according to claim 1, characterized in that The locking mechanism (4) further comprises: At least one second sliding hole (412) is formed on the bracket (41), the axis of the at least one second sliding hole (412) extending along the second direction (D2), and is suitable for at least partially accommodating the locking plate (42) to allow the locking plate (42) to slide along the second direction (D2) in the second sliding hole (412).

4. The interlocking device according to claim 1, characterized in that: The locking mechanism (4) further comprises: a first slideway (431) formed on the driving plate (43) and comprising a locking end and an unlocking end, wherein a distance from the unlocking end to the fixing portion (1) exceeds a distance from the locking end to the fixing portion (1); and A first step screw (432) is arranged in the first slideway (431) and coupled to the locking plate (42). The first step screw (432) is suitable for moving from the locking end to the unlocking end of the first slideway (431) when the driving plate (43) slides from the locking position to the unlocking position, and drives the locking plate (42) to exit the locking hole.

5. The interlocking device according to claim 1, characterized in that: The locking mechanism (4) further comprises a spring (44), one end of which is coupled to the driving plate (43) and the other end of which is coupled to the bracket (41).

6. The interlocking device according to claim 1, characterized in that: The cam arm (52) comprises: Coupling portion (521); a driving hole (522) formed in the coupling portion (521) and coupled to a driving shaft of the handle (21) of the drawer (2), the driving hole (522) being adapted to rotate with the driving shaft; and The driving portion (523) is coupled to the coupling portion (521) and is adapted to extend in a radial direction perpendicular to the axis of the driving hole (522).

7. The interlocking device according to any one of claims 1 to 6, characterized in that: The limiting member includes: A first limiting plate (53) is movably coupled to the fixing plate (51) and is adapted to be driven by the cam arm (52) to limit the sliding movement of the driving plate (43) toward the unlocking position. The first limiting plate (53) comprises: a first sliding portion (531) slidably coupled to the fixing plate (51) along a third direction (D3); a first receiving hole (532) formed on the first sliding portion (531) and adapted to allow the cam arm (52) to partially pass through; and A first stopper (533) is coupled to a side of the first sliding portion (531) facing the locking mechanism (4) to slide along the third direction (D3) with the first sliding portion (531), and is engaged with the drive plate (43) to limit the drive plate (43) from sliding toward the unlocking position when the cam arm (52) is in the closing position.

8. The interlocking device according to claim 7, characterized in that: The receiving hole includes: a first wall (534) arranged in the third direction (D3) near one end of the locking mechanism (4) and adapted to contact the cam arm (52) during the period when the cam arm (52) rotates from the open position to the closed position; and The second wall (535) is arranged at one end away from the locking mechanism (4) in the third direction (D3) and is suitable for contacting the cam arm (52) during the period when the cam arm (52) rotates from the closing position to the opening position.

9. The interlocking device according to any one of claims 1 to 6 and 8, characterized in that: The limiting member includes: a connecting member (55) coupled to the drive plate (43) and adapted to slide along a fourth direction (D4) during the sliding movement of the drive plate (43) from the locked position to the unlocked position; the fourth direction (D4) having a predetermined third non-zero angle with the first direction (D1); and A second limiting plate (54) is movably coupled to the fixing plate (51) and is adapted to be driven by the cam arm (52) to limit the sliding movement of the connecting member (55) along the fourth direction (D4). The second limiting plate (54) comprises: a second sliding portion (541) slidably coupled to the fixed plate (51) and adapted to slide along a fifth direction (D5) during rotation of the cam arm (52) from the opening position to the closing position, wherein the fifth direction (D5) has a predetermined fourth non-zero angle with the fourth direction (D4); A second receiving hole (542) is formed on the second sliding portion (541) and is coupled to the cam arm (52); and The second stop portion (543) is coupled to the second sliding portion (541), adapted to slide along the fifth direction (D5) with the sliding portion, and coupled to the connecting member (55) to limit the sliding of the connecting member (55) along the fourth direction (D4) when the cam arm (52) is in the closed position.

10. The interlocking device according to claim 9, characterized in that: The connecting member (55) comprises: a connecting arm (551), coupled to the bracket (41), and slidably connected to the bracket (41) along a fourth direction (D4); a second slideway (552) formed on the connecting arm (551) and comprising a shielding end and an avoidance end; and A second step screw (553) is arranged in the second slideway (552) and coupled to the drive plate (43) so as to move from the shielding end of the second slideway (552) to the avoidance end while the drive plate (43) slides from the locked position to the unlocked position, and drive the connecting arm (551) to slide along the fourth direction (D4).

11. The interlocking device according to claim 10, characterized in that: The connecting member (55) further comprises a slot (554) which forms a side of the connecting arm (551) facing the second limiting plate (54) and extends along the fifth direction (D5) to accommodate the second stop portion (543) to be snapped in.

12. The interlocking device according to claim 10 or 11, characterized in that: The connecting member (55) further comprises a shielding portion (555) coupled to the connecting arm (551) and adapted to expose at least the handle insertion hole of the drawer (2) during the movement of the driving plate (43) from the locked position to the unlocked position.

13. The interlocking device according to claim 9, characterized in that: The second receiving hole (542) includes: a third wall (544), arranged at one end of the second receiving hole (542) along the fifth direction (D5), adapted to contact the cam arm (52) during the period when the cam arm (52) rotates from the opening position to the closing position; and A fourth wall (545) is arranged at the other end of the second receiving hole (542) relative to the one end along the fifth direction (D5), and is suitable for contacting the cam arm (52) when the cam arm (52) is in the closing position.

14. A drawer cabinet, characterized in that: include: Cabinet; A fixing portion (1) fixedly coupled to the cabinet; A drawer (2) is arranged on the fixing portion (1) and is slidably connected to the fixing portion (1); as well as The interlocking device (3) according to any one of claims 1 to 13 is coupled to the drawer (2) to interlock the drawer (2) and the fixed part (1) during the closing of the drawer (2).

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