Hand-cranking mechanism and power distribution cabinet drawer

Abstract

The utility model discloses a hand-cranking mechanism and a power distribution cabinet drawer, the hand-cranking mechanism comprises a hand-cranking structure, a locking member and a conversion structure, the hand-cranking structure comprises a hand-cranking assembly and a screw sleeve which are suitable for meshing or separating under the action of external force, the hand-cranking assembly is suitable for being arranged in the drawer, and the screw sleeve is suitable for being arranged in a power distribution cabinet; the locking piece is arranged on the hand-cranking assembly in a sliding mode, and the locking piece has a locking state for locking the hand-cranking assembly and a releasing state for releasing the hand-cranking assembly; the switching structure comprises a reset part and an adjusting part, the reset part is arranged between the hand-cranking assembly and the locking part, when the hand-cranking assembly is separated from the threaded sleeve, the reset part is suitable for driving the locking part to be in a locking state, the adjusting part is arranged on the threaded sleeve, and when the hand-cranking assembly is meshed with the threaded sleeve, the adjusting part is suitable for abutting against the locking part. Therefore, the locking piece is forced to be converted from the locking state to the releasing state. The hand-cranking mechanism with the structure can prevent the hand-cranking assembly from idling when the hand-cranking assembly is not engaged with the thread sleeve, and can realize complete plugging of the drawer and the power distribution cabinet.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a hand-crank mechanism and a power distribution cabinet drawer. Background Art

[0002] Low-voltage distribution cabinets are used for converting and distributing electrical energy. They are rated for AC 50Hz, 380V, and are used for power conversion and control in distribution systems for power, lighting, and distribution. They feature strong interrupting capacity, excellent dynamic thermal stability, flexible electrical design, easy assembly, a wide range of systems, strong practicality, and a novel structure.

[0003] In the prior art, drawers in existing low-voltage power distribution cabinets are connected to the power distribution cabinet via a manual crank mechanism. When the drawer is about to be connected to the power distribution cabinet, the operator can use the manual crank mechanism to fully connect the drawer and the power distribution cabinet without having to use a lot of force to fully connect the drawer and the power distribution cabinet. In other words, the manual crank mechanism facilitates the operator to fully connect the drawer and the power distribution cabinet. However, when the drawer and the power distribution cabinet are fully connected via the manual crank mechanism, the threaded shaft on the manual crank mechanism must first be engaged with the threaded sleeve on the power distribution cabinet. Only then can the drawer and the power distribution cabinet be connected into place through the threaded cooperation between the threaded shaft on the manual crank mechanism and the threaded sleeve on the power distribution cabinet.

[0004] However, the existing hand-crank mechanism can freely shake and idle when the threaded shaft is not engaged with the screw sleeve, and the rotation of the hand-crank mechanism has a stroke limit. Therefore, when the threaded shaft is engaged with the screw sleeve, the remaining stroke of the hand-crank mechanism is not enough to support the complete connection between the drawer and the distribution cabinet. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the existing hand-crank mechanism can be freely shaken and idled, but its rotation has a stroke limit, resulting in the remaining stroke of the hand-crank mechanism being insufficient to support the complete connection between the drawer and the distribution cabinet.

[0006] To this end, the utility model provides a hand-crank mechanism, comprising:

[0007] A hand-crank structure, comprising a hand-crank assembly and a screw sleeve adapted to be engaged or disengaged under an external force, wherein the hand-crank assembly is adapted to be disposed in a drawer, and the screw sleeve is adapted to be disposed in a power distribution cabinet;

[0008] a locking member, the locking member being slidably disposed on the hand crank assembly, the locking member having a locking state for locking the hand crank assembly and a releasing state for releasing the hand crank assembly;

[0009] The conversion structure includes a reset member and an adjustment member. The reset member is arranged between the hand-crank assembly and the locking member. When the hand-crank assembly and the screw sleeve are separated, the reset member is suitable for driving the locking member to be in the locked state. The adjustment member is arranged on the screw sleeve. When the hand-crank assembly and the screw sleeve are engaged, the adjustment member is suitable for abutting against the locking member to force the locking member to convert from the locked state to the released state.

[0010] Optionally, in the above-mentioned hand-crank mechanism, the hand-crank assembly includes a rotating shaft, and the locking member is provided with a rotating portion and a locking portion that are interconnected. When the locking member is slidably arranged on the hand-crank assembly, the rotating shaft is arranged in the rotating portion and the locking portion, and in the locked state, the end of the rotating shaft is arranged in the locking portion, and in the released state, the end of the rotating shaft is arranged in the rotating portion.

[0011] Optionally, in the above-mentioned hand-crank mechanism, the reset member has an elastic force that drives the locking member to slide relative to the hand-crank assembly. When the locking member is in the locked state, the reset member is suitable for driving the locking member to slide relative to the hand-crank assembly through the elastic force, and allowing the end of the rotating shaft to enter the locking part.

[0012] Optionally, in the above-mentioned hand-cranked mechanism, the locking member is provided with an abutment portion, the adjusting member has a guide portion and an extension portion connected to each other, the guide portion is arranged at an angle, and when the locking member is in the released state, the locking member is suitable for abutting against the guide portion and the extension portion through the abutment portion to drive the locking member to slide relative to the hand-cranked assembly and allow the end of the rotating shaft to enter the rotating portion.

[0013] Optionally, in the above-mentioned hand-crank mechanism, a plurality of connecting parts are further provided on the locking member; and a locking structure is also included, wherein the locking structure includes a first locking member, which is suitable for passing through the connecting part to be connected to the hand-crank assembly to connect the locking member and the hand-crank assembly, and the locking member is suitable for sliding relative to the hand-crank assembly through the connecting part.

[0014] Optionally, in the above-mentioned hand-crank mechanism, the locking structure also includes a second locking member. When the rotating shaft is arranged in the rotating part and the locking part, the second locking member is suitable for passing through the reset member to be connected to the rotating shaft, so as to set the reset member between the locking member and the hand-crank assembly.

[0015] Optionally, in the above-mentioned hand-crank mechanism, the conversion structure further includes a barrier member, which covers the rotating part and the locking part and is arranged between the reset member and the locking member to limit the end of the rotating shaft.

[0016] Optionally, in the above-mentioned hand-crank mechanism, at least two pressing portions are provided on the locking member, and when the reset member is connected to the rotating shaft, both ends of the reset member respectively abut against one of the pressing portions.

[0017] Optionally, in the above-mentioned hand-crank mechanism, the adjusting member is provided with a mounting portion, the screw sleeve is provided with a fixing portion, and the mounting portion is suitable for being inserted into the fixing portion to connect the adjusting member and the screw sleeve.

[0018] A power distribution drawer cabinet comprises the above-mentioned hand-crank mechanism.

[0019] The technical solution provided by the utility model has the following advantages:

[0020] 1. The hand-crank mechanism provided by the present invention comprises a locking member provided on the hand-crank structure and a conversion structure provided between the hand-crank structure and the locking member. The hand-crank structure comprises a hand-crank assembly and a screw sleeve. The hand-crank assembly can be provided in a drawer, and the screw sleeve can be provided in a power distribution cabinet. When the drawer is inserted into the power distribution cabinet, the hand-crank assembly and the screw sleeve can be engaged. When the drawer is pulled out of the power distribution cabinet, the hand-crank assembly and the screw sleeve can be separated. The locking member is specifically slidably provided on the hand-crank assembly, and the locking member has a locking state for locking the hand-crank assembly and a releasing state for releasing the hand-crank assembly. That is, in the locked state, the locking member can lock the hand-crank assembly so that it cannot rotate. In the released state, the locking member can release the hand-crank assembly so that it can rotate. The conversion structure comprises a reset member and an adjustment member, wherein, The reset member is arranged between the hand-cranked assembly and the locking member, and when the hand-cranked assembly and the screw sleeve are separated, the reset member can drive the locking member to a locked state, thereby preventing the hand-cranked assembly from rotating, thereby retaining the rotation stroke of the hand-cranked assembly. The adjusting member is specifically arranged on the screw sleeve, and when the hand-cranked assembly and the screw sleeve are engaged, the adjusting member can abut against the locking member and force the locking member to switch from a locked state to a released state, thereby enabling the hand-cranked assembly to rotate. When the hand-cranked assembly is engaged with the screw sleeve, the rotation stroke of the hand-cranked assembly can support the drawer and the power distribution cabinet to achieve full plug-in cooperation, so as to avoid the hand-cranked assembly from idling when it is not engaged with the screw sleeve, and causing the remaining rotation stroke of the hand-cranked assembly to be insufficient to support the drawer and the power distribution cabinet to be fully plugged in, thereby causing a dangerous accident. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is an exploded schematic diagram of the hand-crank mechanism provided in an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the separation of the hand-crank mechanism provided in the embodiment of the present utility model;

[0024] Figure 3 A schematic diagram of the engagement of the hand-crank mechanism provided in an embodiment of the present utility model;

[0025] Description of reference numerals:

[0026] 1-hand crank structure; 11-hand crank assembly; 111-rotating shaft; 12-screw sleeve; 121-fixing part;

[0027] 2-locking member; 21-rotating portion; 22-locking portion; 23-abutting portion; 24-connecting portion; 25-pressing portion; 3-conversion structure; 31-resetting member; 32-adjusting member; 321-guide portion; 322-extension portion; 323-installation portion; 33-blocking member; 4-locking structure; 41-first locking member; 42-second locking member. DETAILED DESCRIPTION

[0028] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] Example 1

[0033] This embodiment provides a hand-crank mechanism, such as Figures 1 to 3 As shown, it includes a hand-cranked structure 1, a locking member 2 and a conversion structure 3. The hand-cranked structure 1 includes a hand-cranked component 11 and a screw sleeve 12 suitable for engaging or disengaging under the action of an external force. The hand-cranked component 11 is suitable for being arranged in a drawer, and the screw sleeve 12 is suitable for being arranged in a distribution cabinet; the locking member 2 is slidably arranged on the hand-cranked component 11, and the locking member 2 has a locked state for locking the hand-cranked component 11 and a released state for releasing the hand-cranked component 11; the conversion structure 3 includes a reset member 31 and an adjusting member 32. The reset member 31 is arranged between the hand-cranked component 11 and the locking member 2. When the hand-cranked component 11 and the screw sleeve 12 are separated, the reset member 31 is suitable for driving the locking member 2 to be in a locked state. The adjusting member 32 is arranged on the screw sleeve 12. When the hand-cranked component 11 and the screw sleeve 12 are engaged, the adjusting member 32 is suitable for abutting against the locking member 2 to force the locking member 2 to convert from the locked state to the released state.

[0034] The hand-cranked mechanism of the above structure is provided with a locking piece 2 on the hand-cranked structure 1 and a conversion structure 3 between the hand-cranked structure 1 and the locking piece 2. The locking piece 2 is a locking plate in this embodiment. The hand-cranked structure 1 includes a hand-cranked component 11 and a screw sleeve 12, wherein the hand-cranked component 11 can be provided in a drawer, and the screw sleeve 12 can be provided in a distribution cabinet. When the drawer is inserted into the distribution cabinet, the hand-cranked component 11 and the screw sleeve 12 can be engaged with each other. When the drawer is pulled out of the distribution cabinet, the hand-cranked component 11 and the screw sleeve 12 can be separated. The locking piece 2 is specifically slidably provided on the hand-cranked component 11, and the locking piece 2 has a locking state for locking the hand-cranked component 11 and a releasing state for releasing the hand-cranked component 11, that is, in the locked state, the locking piece 2 can lock the hand-cranked component 11 so that it cannot rotate, and in the released state, the locking piece 2 can release the hand-cranked component 11 so that it can rotate.

[0035] In addition, the conversion structure 3 includes a reset member 31 and an adjusting member 32. The reset member 31 and the adjusting member 32 are respectively a torsion spring and an adjusting slide in this embodiment. The reset member 31 is arranged between the hand crank assembly 11 and the locking member 2, and when the hand crank assembly 11 and the screw sleeve 12 are separated, the reset member 31 can drive the locking member 2 to be in a locked state, thereby making the hand crank assembly 11 unable to rotate, thereby making the rotation stroke of the hand crank assembly 11 able to be retained. The adjusting member 32 is specifically arranged on the screw sleeve 12, and is located between the hand crank assembly 11 and the screw sleeve 12. When the sleeve 12 is engaged, the adjusting member 32 can abut against the locking member 2 and force the locking member 2 to switch from the locked state to the released state, so that the hand crank assembly 11 can rotate. Then, when the hand crank assembly 11 is engaged with the screw sleeve 12, the rotation stroke of the hand crank assembly 11 can support the drawer and the power distribution cabinet to achieve complete plug-in cooperation, so as to avoid the hand crank assembly 11 from idling when it is not engaged with the screw sleeve 12, and causing the remaining rotation stroke of the hand crank assembly 11 to be insufficient to support the complete plug-in of the drawer and the power distribution cabinet, thereby causing a dangerous accident.

[0036] This embodiment provides a hand-crank mechanism, such as Figure 1 As shown, the hand crank assembly 11 includes a rotating shaft 111, and the locking member 2 is provided with a rotating portion 21 and a locking portion 22 that are interconnected. When the locking member 2 is slidably set on the hand crank assembly 11, the rotating shaft 111 is set in the rotating portion 21 and the locking portion 22, and in the locked state, the end of the rotating shaft 111 is set in the locking portion 22, and in the released state, the end of the rotating shaft 111 is set in the rotating portion 21.

[0037] The hand crank mechanism of the above structure is provided with a hand crank component 11 including a rotating shaft 111 and a rotating part 21 and a locking part 22 opened on the locking member 2. The rotating part 21 and the locking part 22 are respectively a rotating hole and a locking hole in this embodiment. The rotating part 21 and the locking part 22 are connected to each other. When the locking member 2 is slidably provided on the hand crank component 11, the rotating shaft 111 can be provided in the rotating part 21 and the locking part 22. In the locked state, the rotating shaft 111 will be stuck in the locking part 22 by the reset member 31, so as to limit the rotating shaft 111 through the locking part 22, so that it cannot rotate and retain the rotation stroke of the hand crank component 11. In the released state, the rotating shaft 111 will move into the rotating part 21 under the action of the adjusting member 32, so that the rotating shaft 111 can rotate in the rotating part 21 to release the rotation stroke of the hand crank component 11.

[0038] Specifically, the rotating part 21 is a circular rotating hole. This is because the end of the rotating shaft 111 is circular. Therefore, when the end of the rotating shaft 111 is set in the rotating part 21, the circular rotating shaft 111 can rotate in the circular rotating hole. The locking part 2 is a square locking hole. This is because the end of the rotating shaft 111 has a square limit block. Therefore, when the limit block enters the locking part 22, the locking part 22 can limit the rotation of the rotating shaft 111, thereby making the rotating shaft 111 unable to rotate and retaining the rotation stroke of the hand crank assembly 11.

[0039] This embodiment provides a hand-crank mechanism, such as Figures 1 to 3 As shown, the reset member 31 has an elastic force that drives the locking member 2 to slide relative to the hand crank assembly 11. When the locking member 2 is in a locked state, the reset member 31 is suitable for driving the locking member 2 to slide relative to the hand crank assembly 11 through the elastic force, and allowing the end of the rotating shaft 111 to enter the locking portion 22.

[0040] The hand-cranked mechanism of the above structure has an elastic force by setting the reset member 31, which can drive the locking member 2 to move relative to the hand-cranked assembly 11. Therefore, when the locking member 2 is in a locked state, that is, when the hand-cranked assembly 11 is separated from the screw sleeve 12, the reset member 31 can drive the locking member 2 to move relative to the hand-cranked assembly 11 through the elastic force, and clamp the rotating shaft 111 into the locking portion 22, and then limit the rotating shaft 111 through the locking portion 22, so that it cannot rotate.

[0041] This embodiment provides a hand-crank mechanism, such as Figure 1 As shown, the locking member 2 is provided with an abutment portion 23, and the adjusting member 32 has a guide portion 321 and an extension portion 322 that are connected to each other. The guide portion 321 is arranged at an angle. When the locking member 2 is in a released state, the locking member 2 is suitable for abutting against the guide portion 321 and the extension portion 322 through the abutment portion 23 to drive the locking member 2 to slide relative to the hand crank assembly 11 and make the end of the rotating shaft 111 enter the rotating portion 21.

[0042] The hand-crank mechanism of the above structure is provided with an abutment portion 23 on the locking member 2 and a guide portion 321 and an extension portion 322 on the adjusting member 32. The abutment portion 23 is an abutment block in this embodiment, and the guide portion 321 and the extension portion 322 are respectively a guide block and an extension block in this embodiment. The guide portion 321 and the extension portion 322 are connected to each other, and the guide portion 321 is inclined and the extension portion 322 is horizontal. When the locking member 2 is in the released state, that is, when the hand-crank assembly 11 is engaged with the screw sleeve 12, the locking member 2 is in the released state. The abutment portion 23 can abut against the guide portion 321 on the adjusting member 32, and when the drawer continues to be inserted into the distribution cabinet, the locking member 2 can slide relative to the hand crank assembly 11 through the guide portion 321, and the rotating portion 21 moves in the direction of the rotating shaft 111, and when the abutment portion 23 abuts against the extension portion 322, the rotating portion 21 can completely move the position of the rotating shaft 111, so that the rotating shaft 111 can rotate in the rotating portion 21, thereby releasing the rotation stroke of the hand crank assembly 11, and allowing the drawer to be fully plugged into the distribution cabinet.

[0043] This embodiment provides a hand-crank mechanism, such as Figure 1 As shown, the locking member 2 is further provided with a plurality of connecting portions 24; it also includes a locking structure 4, the locking structure 4 includes a first locking member 41, the first locking member 41 is suitable for passing through the connecting portion 24 to connect with the hand crank assembly 11 to connect the locking member 2 and the hand crank assembly 11, and the locking member 2 is suitable for sliding relative to the hand crank assembly 11 through the connecting portion 24.

[0044] The hand-cranked mechanism of the above structure is provided with a locking structure 4 between the locking member 2 and the hand-cranked assembly 11 by opening a plurality of connecting parts 24 on the locking member 2. The connecting part 24 is a connecting waist hole in this embodiment. The locking structure specifically includes a first locking member 41. The first locking member 41 is a first locking screw in this embodiment. When the locking member 2 is connected to the hand-cranked assembly 11, the first locking member 41 can pass through the connecting part 24 and connect with the hand-cranked assembly 11, thereby connecting the locking member 2 and the hand-cranked assembly 11 together, and the locking member 2 can slide relative to the hand-cranked assembly 11 through the connecting part 24 under the action of external force, thereby realizing a sliding connection between the locking member 2 and the hand-cranked assembly 11.

[0045] This embodiment provides a hand-crank mechanism, such as Figures 1 to 3 As shown, the locking structure 4 also includes a second locking member 42. When the rotating shaft 111 is set in the rotating part 21 and the locking part 22, the second locking member 42 is suitable for passing through the reset member 31 to connect with the rotating shaft 111 so as to set the reset member 31 between the locking member 2 and the hand crank assembly 11.

[0046] The hand-cranked mechanism of the above structure also includes a second locking member 42 by setting a locking structure 4. The second locking member 42 is a second locking screw in this embodiment. When the rotating shaft 111 is set in the rotating part 21 and the locking part 22, the second locking member 42 can pass through the reset member 31 and connect with the rotating shaft 111, thereby connecting the reset member 31 and the rotating shaft 111 together, and when the reset member 31 is connected to the rotating shaft 111, the reset member 31 abuts against the locking member 2, so that the locking member 2 can be set between the rotating shaft 111 and the locking member 2, and then the reset member 31 can drive the locking member 2 to slide relative to the hand-cranked assembly 11.

[0047] This embodiment provides a hand-crank mechanism, such as Figures 1 to 3 As shown, the conversion structure 3 further includes a barrier member 33 , which covers the rotating portion 21 and the locking portion 22 and is disposed between the reset member 31 and the locking member 2 to limit the end of the rotating shaft 111 .

[0048] The hand-crank mechanism of the above structure further includes a spacer 33 by setting a conversion structure 3. The spacer 33 is a spacer plate in this embodiment. The spacer 33 is specifically arranged between the locking member 2 and the reset member 31, and the spacer 33 can cover the rotating part 21 and the locking part 22. Therefore, when the end of the rotating shaft 111 is arranged in the rotating part 21 and the locking part 22, the spacer 33 can limit the end of the rotating shaft 111, thereby preventing the end of the rotating shaft 111 from passing through the locking member 2 through the rotating part 21 and the locking part 22.

[0049] This embodiment provides a hand-crank mechanism, such as Figure 1 As shown, at least two pressing portions 25 are provided on the locking member 2 . When the restoring member 31 is connected to the rotating shaft 111 , both ends of the restoring member 31 respectively abut against one of the pressing portions 25 .

[0050] The hand-crank mechanism of the above structure is provided with two pressing parts 25 on the locking member 2. The pressing parts 25 are pressing grooves in this embodiment. When the reset member 31 is connected to the rotating shaft 111 and abuts against the locking member 2, the two ends of the reset member 31 abut against one pressing part 25 respectively, so that the reset member 31 can apply elastic force to the locking member 2, and then the locking member 2 can be driven by the elastic force to slide relative to the hand-crank assembly 11 when the hand-crank assembly 11 is separated from the screw sleeve 12.

[0051] This embodiment provides a hand-crank mechanism, such as Figure 1 As shown, a mounting portion 323 is provided on the adjusting member 32 , and a fixing portion 121 is provided on the screw sleeve 12 . The mounting portion 323 is suitable for being inserted into the fixing portion 121 to connect the adjusting member 32 and the screw sleeve 12 .

[0052] The hand-operated mechanism has the mounting portion 323 arranged on the adjusting member 32 and the fixing portion 121 arranged on the screw sleeve 12, the mounting portion 323 and the fixing portion 121 are a mounting rod and a fixing hole respectively in the embodiment, and when the adjusting member 32 and the screw sleeve 12 are connected, the mounting portion 323 is inserted into the fixing portion 121, so that the adjusting member 32 and the screw sleeve 12 are connected together.

[0053] The hand-operated mechanism has the mounting portion 323 arranged on the adjusting member 32 and the fixing portion 121 arranged on the screw sleeve 12, the mounting portion 323 and the fixing portion 121 are a mounting rod and a fixing hole respectively in the embodiment, and when the adjusting member 32 and the screw sleeve 12 are connected, the mounting portion 323 is inserted into the fixing portion 121, so that the adjusting member 32 and the screw sleeve 12 are connected together.

[0054] Embodiment 2

[0055] The hand-operated mechanism has the mounting portion 323 arranged on the adjusting member 32 and the fixing portion 121 arranged on the screw sleeve 12, the mounting portion 323 and the fixing portion 121 are a mounting rod and a fixing hole respectively in the embodiment, and when the adjusting member 32 and the screw sleeve 12 are connected, the mounting portion 323 is inserted into the fixing portion 121, so that the adjusting member 32 and the screw sleeve 12 are connected together. Figures 1 to 3As shown, it includes the above-mentioned hand-crank mechanism. The power distribution drawer cabinet of the above-mentioned structure includes the above-mentioned hand-crank mechanism by setting the power distribution drawer cabinet, that is, by setting a locking member 2 on the hand-crank structure 1 and a conversion structure 3 between the hand-crank structure 1 and the locking member 2. The hand-crank structure 1 includes a hand-crank assembly 11 and a screw sleeve 12, wherein the hand-crank assembly 11 can be set in the drawer, and the screw sleeve 12 can be set in the power distribution cabinet, and when the drawer is inserted into the power distribution cabinet, the hand-crank assembly 11 and the screw sleeve 12 can be engaged, and when the drawer is pulled out of the power distribution cabinet, the hand-crank assembly 11 and the screw sleeve 12 can be separated, and the locking member 2 is specifically slidably set on the hand-crank assembly 11, and the locking member 2 has a locking state for locking the hand-crank assembly 11 and a releasing state for releasing the hand-crank assembly 11, that is, in the locked state, the locking member 2 can lock the hand-crank assembly 11 so that it cannot rotate, and in the released state, the locking member 2 can release the hand-crank assembly 11 so that it can rotate, and the conversion structure 3 includes a reset member 31 and The adjusting member 32, wherein the reset member 31 is arranged between the hand crank assembly 11 and the locking member 2, and when the hand crank assembly 11 and the screw sleeve 12 are separated, the reset member 31 can drive the locking member 2 to be in a locked state, so that the hand crank assembly 11 cannot be rotated, thereby retaining the rotation stroke of the hand crank assembly 11, and the adjusting member 32 is specifically arranged on the screw sleeve 12, and when the hand crank assembly 11 and the screw sleeve 12 are engaged, the adjusting member 32 can abut against the locking member 2 and force the locking member 2 to switch from the locked state to the released state, thereby enabling the hand crank assembly 11 to rotate, and then when the hand crank assembly 11 is engaged with the screw sleeve 12, the rotation stroke of the hand crank assembly 11 can support the drawer and the power distribution cabinet to achieve full plug-in cooperation, so as to avoid the hand crank assembly 11 from idling when it is not engaged with the screw sleeve 12, and causing the remaining rotation stroke of the hand crank assembly 11 to be insufficient to support the drawer and the power distribution cabinet to be fully plugged in, thereby causing a dangerous accident.

[0056] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A hand-crank mechanism, characterized in that: include: A hand-crank structure (1) comprises a hand-crank assembly (11) and a screw sleeve (12) adapted to be engaged or disengaged under the action of an external force, wherein the hand-crank assembly (11) is adapted to be arranged in a drawer, and the screw sleeve (12) is adapted to be arranged in a power distribution cabinet; A locking member (2), the locking member (2) being slidably disposed on the hand crank assembly (11), the locking member (2) having a locking state for locking the hand crank assembly (11) and a releasing state for releasing the hand crank assembly (11); The conversion structure (3) comprises a reset member (31) and an adjusting member (32). The reset member (31) is arranged between the hand crank assembly (11) and the locking member (2). When the hand crank assembly (11) and the screw sleeve (12) are separated, the reset member (31) is suitable for driving the locking member (2) to be in the locked state. The adjusting member (32) is arranged on the screw sleeve (12). When the hand crank assembly (11) and the screw sleeve (12) are engaged, the adjusting member (32) is suitable for abutting against the locking member (2) to force the locking member (2) to convert from the locked state to the released state.

2. The hand crank mechanism according to claim 1, characterized in that: The hand crank assembly (11) comprises a rotating shaft (111), and the locking member (2) is provided with a rotating portion (21) and a locking portion (22) which are communicated with each other. When the locking member (2) is slidably arranged on the hand crank assembly (11), the rotating shaft (111) is arranged in the rotating portion (21) and the locking portion (22), and in the locked state, the end of the rotating shaft (111) is arranged in the locking portion (22), and in the released state, the end of the rotating shaft (111) is arranged in the rotating portion (21).

3. The hand crank mechanism according to claim 2, characterized in that: The reset member (31) has an elastic force for driving the locking member (2) to slide relative to the hand crank assembly (11); when the locking member (2) is in the locked state, the reset member (31) is suitable for driving the locking member (2) to slide relative to the hand crank assembly (11) through the elastic force, and allowing the end of the rotating shaft (111) to enter the locking portion (22).

4. The hand crank mechanism according to claim 3, characterized in that: The locking member (2) is provided with an abutting portion (23), and the adjusting member (32) has a guide portion (321) and an extension portion (322) connected to each other, and the guide portion (321) is arranged at an angle. When the locking member (2) is in the released state, the locking member (2) is adapted to abut against the guide portion (321) and the extension portion (322) through the abutting portion (23), so as to drive the locking member (2) to slide relative to the hand crank assembly (11), and to allow the end of the rotating shaft (111) to enter the rotating portion (21).

5. The hand crank mechanism according to claim 4, characterized in that: The locking member (2) is also provided with a plurality of connecting portions (24); and further comprises a locking structure (4), wherein the locking structure (4) comprises a first locking member (41), wherein the first locking member (41) is adapted to pass through the connecting portion (24) and be connected to the hand crank assembly (11) so as to connect the locking member (2) and the hand crank assembly (11), and the locking member (2) is adapted to slide relative to the hand crank assembly (11) through the connecting portion (24).

6. The hand crank mechanism according to claim 5, characterized in that: The locking structure (4) further includes a second locking member (42). When the rotating shaft (111) is arranged in the rotating portion (21) and the locking portion (22), the second locking member (42) is adapted to pass through the reset member (31) and connect with the rotating shaft (111) to arrange the reset member (31) between the locking member (2) and the hand crank assembly (11).

7. The hand crank mechanism according to claim 6, characterized in that: The conversion structure (3) further includes a spacer (33), which covers the rotating portion (21) and the locking portion (22) and is arranged between the reset portion (31) and the locking portion (2) to limit the end of the rotating shaft (111).

8. The hand crank mechanism according to claim 7, characterized in that: At least two pressing portions (25) are provided on the locking member (2). When the reset member (31) is connected to the rotating shaft (111), both ends of the reset member (31) respectively abut against one of the pressing portions (25).

9. The hand crank mechanism according to claim 8, characterized in that: The adjusting member (32) is provided with a mounting portion (323), the screw sleeve (12) is provided with a fixing portion (121), and the mounting portion (323) is suitable for being inserted into the fixing portion (121) to connect the adjusting member (32) and the screw sleeve (12).

10. A power distribution drawer cabinet, characterized in that: The invention comprises the hand-crank mechanism according to any one of claims 1 to 9.

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