Lockset structure suitable for large-size cabinet and cabinet

Abstract

The invention provides a lock structure suitable for a large-size cabinet and the cabinet, and belongs to the technical field of cabinet locking structures.The lock structure comprises a lock body, an upper locking unit, a lower locking unit and a middle locking piece, the upper locking unit comprises an upper locking assembly connected to the lock body and an upper reinforcing assembly connected to the upper locking assembly, and the lower locking unit comprises a lower locking assembly connected to the lower locking assembly; the upper locking assembly is located on the opening and closing side of the cabinet door in the left-right direction, and the upper reinforcing assembly is located in the middle of the cabinet door in the left-right direction. The lower locking unit comprises a lower locking assembly connected to the lock body and a lower reinforcing assembly connected to the lower locking assembly. The middle locking piece is connected to the lock body. The invention provides a lockset structure suitable for a large-size cabinet and the cabinet, and aims to solve the problems that in the prior art, locking only depends on the top and the bottom of a cabinet door and cannot be suitable for the cabinet door of the large-size cabinet, the sealing effect of the cabinet door and a cabinet body is poor, and locking of the cabinet door is unstable.

Description

Technical Field

[0001] The present invention belongs to the technical field of cabinet locking structures, and more specifically, relates to a lock structure and a cabinet suitable for a large-sized cabinet. Background Art

[0002] With the rapid development of the electrical industry, the power density of the machine and the volume of the whole machine are increasing synchronously, and the corresponding cabinet volume is also increasing accordingly. In order to ensure the stability of the cabinet door when it is opened and improve the sealing performance between the cabinet door and the cabinet body, two cabinet doors are usually set up, and a vertical beam is set between the two cabinet doors for installing locks. However, this solution will affect the width of the cabinet opening, making it difficult for the equipment to enter and exit the cabinet, which brings great inconvenience to the maintenance and installation of the equipment. In addition, if only one cabinet door is hinged to the cabinet body, because the width and height of the cabinet door are large, it only relies on the traditional multi-point lock to lock the cabinet body on the side away from the hinged end. Not only can the firmness of the cabinet door after locking cannot be guaranteed, but it will also affect the sealing between the cabinet door and the cabinet body, causing the electrical components inside the cabinet to be affected by external humidity and temperature. Summary of the invention

[0003] The purpose of the present invention is to provide a lock structure and a cabinet suitable for large-sized cabinets, aiming to solve the problem that the existing technology only relies on locking at the top and bottom of the cabinet door and is not suitable for the cabinet door of large-sized cabinets, resulting in poor sealing effect between the cabinet door and the cabinet body and unstable cabinet door locking.

[0004] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, a lock structure suitable for a large-size cabinet is provided, comprising: A lock body, used for connecting with the cabinet door; An upper locking unit, comprising an upper locking assembly connected to the lock body and an upper reinforcing assembly connected to the upper locking assembly, wherein the upper locking assembly and the upper reinforcing assembly are both used to lock with the top of the cabinet, the upper locking assembly is located at the opening and closing side of the cabinet door along the left-right direction, and the upper reinforcing assembly is located at the middle part of the cabinet door along the left-right direction; A lower locking unit, comprising a lower locking assembly connected to the lock body and a lower reinforcing assembly connected to the lower locking assembly, wherein the lower locking assembly and the lower reinforcing assembly are both used to lock with the bottom of the cabinet, the lower locking assembly is located at the opening and closing side of the cabinet door along the left-right direction, and the lower reinforcing assembly is located at the middle part of the cabinet door along the left-right direction; and A middle locking piece is connected to the lock body, and the middle locking piece is used to lock with the middle area of ​​the cabinet side wall.

[0005] In combination with the first aspect, in a possible implementation, the lock structure suitable for large-size cabinets also includes a plurality of reinforced locking components spaced apart along the up and down directions, and the upper locking component and the lower locking component are both connected to the reinforced locking components, and the reinforced locking components are used to lock with the side of the cabinet.

[0006] In combination with the first aspect, in a possible implementation manner, the upper reinforcement assembly and the lower reinforcement assembly both include: A traction member, rotatably connected to the upper locking assembly or the lower locking assembly with the left and right directions as the rotation axis; The connecting member comprises a first connecting portion and a second connecting portion which are distributed at an angle, wherein the first connecting portion extends in the up-down direction and is rotatably connected to the pulling member with the left-right direction as a rotating axis, and the second connecting portion extends in the left-right direction; and The locking member is rotatably connected to the second connecting portion with the up-and-down direction as a rotating axis, and the locking member is used for plugging or abutting and locking with the cabinet.

[0007] In combination with the first aspect, in a possible implementation, the upper reinforcement assembly and the lower reinforcement assembly further include a limiting member for connecting to the cabinet door, respectively, and the limiting member is provided with a limiting hole adapted for the locking member along the left and right directions, and the locking member is inserted into the limiting hole.

[0008] In combination with the first aspect, in a possible implementation manner, the locking component is rotatably connected to a guide wheel, and the guide wheel is used to reduce friction between the locking component and the cabinet body.

[0009] In combination with the first aspect, in a possible implementation, the upper locking assembly and the lower locking assembly both include: A driving member connected to the lock body and extending in the up-down direction; A transmission member, one end of which is rotatably connected to the driving member around a horizontal axis and extends in the up-down direction, wherein the upper reinforcement assembly and the lower reinforcement assembly are respectively connected to the corresponding transmission member; and The fixing member is rotatably connected to the other end of the transmission member around a horizontal axis, and the fixing member is used for abutting or plugging and locking with the cabinet.

[0010] In combination with the first aspect, in a possible implementation, the upper locking assembly and the lower locking assembly further include limiting members for connecting to the cabinet door, respectively, and the limiting members are provided with limiting holes adapted to the fixing members along the up and down directions, and the fixing members are inserted into the limiting holes.

[0011] In combination with the first aspect, in a possible implementation manner, the fixing member is rotatably connected to a rolling wheel, and the rolling wheel is used to reduce friction between the fixing member and the cabinet.

[0012] In combination with the first aspect, in a possible implementation, the upper locking assembly and the lower locking assembly both include transmission teeth arranged in the up-down direction, and the reinforced locking assembly includes: A fastener connected to the upper locking assembly or the lower locking assembly; a driving gear meshed with the transmission gear and rotatably connected to the fastener; and The lock tongue is connected to the driving gear, and the driving gear is used to drive the lock tongue to lock or separate from the cabinet.

[0013] The beneficial effect of the lock structure applicable to large-sized cabinets provided by the present invention is that: compared with the prior art, the lock structure applicable to large-sized cabinets of the present invention is installed on the cabinet door, and the upper locking unit is driven to lock with the top of the cabinet and the lower locking unit is locked with the bottom of the cabinet by rotating the lock body, and the middle locking member is also locked with the middle area of ​​the cabinet side wall, so that the cabinet door and the cabinet are kept in a locked state in each area in the upper and lower directions, and the stability and reliability of the cabinet door and the cabinet are improved. In addition, the upper reinforcement component is also locked with the middle part (left and right direction) of the top of the cabinet, and the lower reinforcement component is locked with the middle part (left and right direction) of the bottom of the cabinet, so that the cabinet door and the cabinet are also locked in the middle area in the left and right directions. Since the width and height dimensions of the large-sized cabinet door are relatively large, the present invention fixes each area of ​​the cabinet door through the upper locking component, the upper fixing component, the lower locking component, the lower fixing component and the middle locking member, improves the stability and reliability of the cabinet door and the cabinet locking, and also increases the sealing effect inside the cabinet. In addition, the present invention does not need to provide a center beam at the opening of the cabinet, thereby ensuring the size of the cabinet opening area, making it convenient for electrical components to enter and exit the cabinet, and facilitating subsequent maintenance of the electrical components.

[0014] In a second aspect, an embodiment of the present invention further provides a cabinet, comprising the lock structure of the large-size cabinet described above, and also comprising a cabinet body and a cabinet door hinged to the cabinet body, wherein the lock structure of the large-size cabinet is connected to the cabinet door.

[0015] The cabinet provided by the present invention has the beneficial effect that: compared with the prior art, the lock structure suitable for large-sized cabinets is adopted, and the upper locking unit is driven to lock with the top of the cabinet and the lower locking unit is locked with the bottom of the cabinet by rotating the lock body, and the middle locking member is also locked with the middle area of ​​the cabinet side wall, so that the cabinet door and the cabinet are kept in a locked state in each area in the upper and lower directions, and the stability and reliability of the locking of the cabinet door and the cabinet are improved. In addition, the upper reinforcement component is also locked with the middle part of the top of the cabinet (left and right direction), and the lower reinforcement component is locked with the middle part of the bottom of the cabinet (left and right direction), so that the cabinet door and the cabinet are also locked in the middle area in the left and right directions. Since the width and height dimensions of the large-sized cabinet door are relatively large, the present invention fixes each area of ​​the cabinet door through the upper locking component, the upper fixing component, the lower locking component, the lower fixing component and the middle locking member, improves the stability and reliability of the locking of the cabinet door and the cabinet, and also increases the sealing effect inside the cabinet. In addition, the present invention does not need to set a center beam at the opening of the cabinet, thereby ensuring the size of the cabinet opening area, facilitating the electrical components to enter and exit the cabinet, and facilitating subsequent maintenance of the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A cross-sectional view of a cabinet is provided for an embodiment of the present invention; Figure 2 for Figure 1 A partial enlarged view of the middle A part; Figure 3 for Figure 1 A partial enlarged view of part B in the middle; Figure 4 A cross-sectional view of a connector used in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the enhanced locking assembly used in an embodiment of the present invention; Figure 6 This is a schematic structural diagram of the lock body and the middle locking member used in an embodiment of the present invention.

[0018] In the figure: 1. cabinet door; 2. cabinet body; 3. upper locking assembly; 301. driving member; 302. transmission member; 303. fixing member; 304. fixing wheel; 305. limiting member; 306. transmission tooth; 307. rack; 4. upper reinforcement assembly; 401. traction member; 402. connecting member; 4021. first connecting part; 4022. second connecting part; 4023. transmission part; 4023-1. fixing seat; 4023-2. spring piece; 403. locking member; 404. guide wheel; 405. limiting member; 5. lower locking assembly; 6. lower reinforcement assembly; 7. middle locking member; 8. lock body; 9. reinforced locking assembly; 901. fastener; 902. lock tongue; 10. support assembly; 1001. support frame; 1002. support wheel. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, the terms "first", "second" or "third" are used to distinguish different objects, rather than to describe a specific order. Unless otherwise specified, other directional words, such as "vertical", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, so it cannot be understood as limiting the specific protection scope of the present invention. In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, the terms "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements. In the claims, specification and the above drawings of the present invention, the terms "including", "having" and their variations are used, and the intention is to "include but not limited to".

[0021] It should be noted that the “left-right direction” refers to the width direction of the cabinet body or cabinet door, that is, the “left-right direction” is perpendicular to the up-down direction and the opening direction of the cabinet body.

[0022] Please also read Figures 1 to 6Now, the lock structure and cabinet applicable to a large-size cabinet provided by the present invention are described. A lock structure suitable for large-size cabinets, including a lock body 8, an upper locking unit, a lower locking unit and a middle locking piece 7, wherein the lock body 8 is used to be connected to the cabinet door 1; the upper locking unit includes an upper locking component 3 connected to the lock body 8 and an upper reinforcement component 4 connected to the upper locking component 3, both of which are used to lock with the top of the cabinet 2, the upper locking component 3 is located on the opening and closing side of the cabinet door 1 along the left-right direction, and the upper reinforcement component 4 is located in the middle part of the cabinet door 1 along the left-right direction; the lower locking unit includes a lower locking component 5 connected to the lock body 8 and a lower reinforcement component 6 connected to the lower locking component 5, both of which are used to lock with the bottom of the cabinet 2, the lower locking component 5 is located on the opening and closing side of the cabinet door 1 along the left-right direction, and the lower reinforcement component 6 is located in the middle part of the cabinet door 1 along the left-right direction; the middle locking piece 7 is connected to the lock body 8, and the middle locking component 7 is used to lock with the middle area of ​​the side wall of the cabinet 2.

[0023] The lock structure applicable to large-sized cabinets provided by the present invention is installed on the cabinet door 1 compared with the prior art, and the upper locking unit is driven to lock with the top of the cabinet 2 and the lower locking unit is locked with the bottom of the cabinet 2 by rotating the lock body 8, and the middle locking member 7 is also locked with the middle area of ​​the side wall of the cabinet 2, so that the cabinet door 1 and the cabinet 2 are kept in a locked state in each area in the upper and lower directions, thereby improving the stability and reliability of the locking of the cabinet door 1 and the cabinet 2. In addition, the upper reinforcement component 4 is also locked with the middle part (left-right direction) of the top of the cabinet 2, and the lower reinforcement component 6 is locked with the middle part (left-right direction) of the bottom of the cabinet 2, so that the cabinet door 1 and the cabinet 2 are also locked in the middle area in the left-right direction. Since the width and height of the large-sized cabinet door 1 are relatively large, the present invention fixes various areas of the cabinet door 1 through the upper locking assembly 3, the upper fixing assembly, the lower locking assembly 5, the lower fixing assembly and the middle locking member 7, thereby improving the stability and reliability of the locking of the cabinet door 1 with the cabinet body 2, and also increasing the sealing effect inside the cabinet body 2. In addition, the present invention does not need to set a middle beam at the opening of the cabinet body 2, thereby ensuring the size of the opening area of ​​the cabinet body 2, facilitating the entry and exit of electrical components into and out of the cabinet body 2, and facilitating the subsequent maintenance of the electrical components.

[0024] It should be noted that the lock body 8 can be a conventional lock body 8, having an operating part located on the outside of the cabinet door 1 and a linkage part located on the inside of the cabinet door 1, and the upper locking unit, the lower locking unit and the middle locking member 7 are all connected to the linkage part. When force is applied to the operating part, the linkage part rotates, thereby driving the upper locking unit, the lower locking unit and the middle locking member 7 to rotate synchronously, thereby achieving locking or separation with the cabinet body 2. One side of the cabinet door 1 is hinged to the cabinet body 2, and the other side opposite to the hinged side is the opening and closing side.

[0025] Optionally, the upper locking assembly 3 and the lower locking assembly 5 are respectively connected to opposite sides of the lock body 8 in the left and right directions, so that when the lock body 8 rotates, the upper locking assembly 3 and the lower locking assembly 5 move in opposite directions and simultaneously achieve locking or unlocking with the cabinet 2. In addition, since the upper reinforcement assembly 4 is connected to the upper locking assembly 3 and the lower reinforcement assembly 6 is connected to the lower locking assembly 5, they move synchronously with the upper locking assembly 3 and the lower locking assembly 5 to achieve a linkage effect.

[0026] Optional, see Figure 6 The lock body 8 is provided with a locking gear, and the upper locking assembly and the lower locking assembly both include a rack 307 meshing with the locking gear, the rack 307 is distributed in the up-down direction, and the upper locking assembly and the lower locking assembly are respectively located on the left and right sides of the locking gear. When the locking gear rotates, the rack 307 drives the upper locking assembly and the lower locking assembly to move in the opposite direction, so that the upper locking assembly and the lower locking assembly are locked or separated from the cabinet 2 at the same time.

[0027] In some embodiments, see Figure 1 and Figure 5 The lock structure suitable for large-size cabinets also includes a plurality of reinforced locking components 9 spaced apart in the up and down directions. The upper locking component 3 and the lower locking component 5 are both connected with the reinforced locking component 9, and the reinforced locking component 9 is used to lock with the side of the cabinet body 2.

[0028] Strengthened locking components 9 are respectively provided on the upper locking component 3 and the lower locking component 5. The strengthened locking components 9 are spaced in sequence along the up and down directions and are respectively locked with the side walls of the cabinet body 2, so that there are multiple locking points between the cabinet door 1 and the side walls of the cabinet body 2 along the up and down directions, thereby improving the firmness of the connection and also improving the sealing effect.

[0029] In some embodiments, see Figure 1 and Figure 3 The upper reinforcement component 4 and the lower reinforcement component 6 both include a traction member 401, a connecting member 402 and a locking member 403. The traction member 401 is rotatably connected to the upper locking component 3 or the lower locking component 5 with the left-right direction as the rotation axis; the connecting member 402 includes a first connecting portion 4021 and a second connecting portion 4022 distributed at an angle. The first connecting portion 4021 extends in the up-down direction and is rotatably connected to the traction member 401 with the left-right direction as the rotation axis, and the second connecting portion 4022 extends in the left-right direction; the locking member 403 is rotatably connected to the second connecting portion 4022 with the up-down direction as the rotation axis, and the locking member 403 is used to be plugged or abutted and locked with the cabinet 2.

[0030] The traction member 401 is connected to the upper locking component or the lower locking component, so that it moves in the up-down direction with the rotation of the lock body 8, and at the same time, it pulls the connecting member 402 to move synchronously. Since the connecting member 402 is an "L"-shaped component, the first connecting portion 4021 moves up and down with the traction member 401, and drives the second connecting portion 4022 to move in the left-right direction. While the first connecting portion 4021 moves up and down, it will be misaligned with the traction member 401 in the inside-outside direction because it is rotatably connected to the traction member 401. Since the second connecting portion 4022 is rotatably connected to the locking member 403, the locking member 403 can be kept consistent with the traction member 401 in the inside-outside direction, ensuring that the locking member 403 moves in a plane parallel to the cabinet door 1. In this embodiment, the rotatable connection of the connecting member 402 is used to realize that the locking member 403 and the traction member 401 are in the same position in the inside-outside direction, ensuring that the locking member 403 is stably locked or separated from the cabinet body 2.

[0031] Optionally, a baffle is provided on the cabinet 2, and the locking member 403 is located inside the baffle and abuts against the baffle to achieve locking. Alternatively, a plug hole may be provided on the cabinet 2, and the locking member 403 is inserted into the plug hole along the up-down direction to achieve locking.

[0032] As a specific implementation of the connector 402, the connector 402 also includes a transmission part 4023 connecting the first connection part 4021 and the second connection part 4022, and the transmission part 4023 is an "L"-shaped component. The transmission part 4023 includes a fixed seat 4023-1 with a transmission channel and a spring piece 4023-2 slidably arranged in the transmission channel, the fixed seat 4023-1 is connected to the cabinet door 1, and the spring piece 4023-2 is respectively connected to the first connection part 4021 and the second connection part 4022. When the connector 402 moves, the spring piece 4023-2 is deformed in the transmission channel, thereby ensuring that the locking member 403 moves in a plane parallel to the cabinet door 1. In addition, this embodiment also realizes the fixation of the connector 402.

[0033] Optionally, the locking member 403 includes a plurality of locking parts that are connected in rotation in sequence. The plurality of locking parts are connected in rotation with the vertical direction as the rotation axis, ensuring that the locking member 403 at the rear end does not deviate in the inner and outer directions when locked or separated, thereby improving the locking accuracy.

[0034] In some embodiments, see Figure 3 The upper reinforcement component 4 and the lower reinforcement component 6 also respectively include a limiting member 405 for connecting with the cabinet door 1. The limiting member 405 is provided with a limiting hole adapted to the locking member 403 along the left-right direction, and the locking member 403 is inserted into the limiting hole.

[0035] The locking member 403 moves in the left and right direction in the limiting hole during the locking or unlocking process. The limiting hole provides guidance for the moving path of the locking member 403 to ensure the stability of the locking member 403 during the movement. In addition, since the locking member 403 is inserted into the limiting hole, the limiting member 405 can also provide support force for the locking member 403, so that the limiting member 405 is slidably fixed to the cabinet door 1. In some embodiments, see Figure 3 The locking member 403 is rotatably connected to a guide wheel 404 , and the guide wheel 404 is used to reduce the friction between the locking member 403 and the cabinet body 2 . When the locking member 403 moves in the left and right direction, the guide wheel 404 rolls with the up and down direction as the axis, thereby converting the sliding friction between the locking member 403 and the cabinet door 1 into the rolling friction between the roller and the cabinet door 1, reducing the wear on the cabinet door 1 and reducing the noise during the locking or unlocking process.

[0036] In some embodiments, see Figure 2 The upper locking assembly 3 and the lower locking assembly 5 each include a driving member 301, a transmission member 302 and a fixing member 303. The driving member 301 is connected to the lock body 8 and extends in the up-down direction; one end of the transmission member 302 is connected to the driving member 301 by rotating around a horizontal axis and extends in the up-down direction. The upper reinforcement assembly 4 and the lower reinforcement assembly 6 are respectively connected to the corresponding transmission member 302; the fixing member 303 is connected to the other end of the transmission member 302 by rotating around a horizontal axis, and the fixing member 303 is used to abut or plug and lock with the cabinet 2. The driving member 301 is connected to the lock body 8, and the driving member 301 moves up and down as the lock body 8 rotates. Since the transmission member 302 is rotatably connected to the driving member 301 and the fixing member 303, when the driving member 301 moves up and down, the transmission member 302 not only moves up and down with the driving member 301, but also is misaligned with the driving member 301 in the inner and outer directions, ensuring that the fixing member 303 and the transmission member 302 are located in the same plane. The upper reinforcement component 4 and the lower reinforcement component 6 are both connected to the transmission member 302, so when the transmission member 302 moves, they will be offset along the inner and outer directions with the transmission member 302, thereby achieving movement in the left and right directions. This embodiment adopts a simple structure to achieve the translation of the fixing member 303, ensuring the stability of the fixing member 303 during the locking or unlocking process with the cabinet 2.

[0037] Specifically, the driving member 301 , the transmission member 302 and the fixing member 303 are all rod-shaped or tubular components extending in the up-down direction.

[0038] In some embodiments, see Figure 3 The upper locking assembly 3 and the lower locking assembly 5 also respectively include a limiting member 305 for connecting with the cabinet door 1. The limiting member 305 is provided with a limiting hole adapted to the fixing member 303 along the up and down directions, and the fixing member 303 is inserted into the limiting hole. The limiting hole provides a guide for the fixing member 303, ensures the stability of the fixing member 303 during movement, and ensures that the fixing member 303 is stably locked with the cabinet body 2. In addition, the limiting member 305 is connected to the cabinet door 1, thereby constraining the fixing member 303 in the inside-outward direction and the left-right direction.

[0039] In some embodiments, see Figure 3 The fixing member 303 is rotatably connected to a rolling wheel, and the rolling wheel is used to reduce the friction between the fixing member 303 and the cabinet body 2. When the fixing member 303 moves in the left-right direction, the rolling wheel rolls with the left-right direction as the axis, thereby converting the sliding friction between the fixing member 303 and the cabinet door 1 into the rolling friction between the roller and the cabinet door 1, reducing the wear on the cabinet door 1 and reducing the noise during the locking or unlocking process.

[0040] In some embodiments, see Figure 5 The upper locking assembly 3 and the lower locking assembly 5 both include transmission teeth 306 arranged in the up and down directions. The reinforced locking assembly 9 includes a fastener 901, a driving gear and a lock tongue 902. The fastener 901 is connected to the upper locking assembly 3 or the lower locking assembly 5; the driving gear is engaged with the transmission teeth 306 and is rotatably connected to the fastener 901; the lock tongue 902 is connected to the driving gear, and the driving gear is used to drive the lock tongue 902 to lock or separate from the cabinet 2.

[0041] The fastener 901 is connected to the upper locking assembly 3 or the lower locking assembly 5, and moves up and down with the upper locking assembly 3 or the lower locking assembly 5. When the fastener 901 moves up and down, the transmission tooth 306 drives the driving gear to rotate, thereby synchronously rotating the lock tongue 902 connected to the driving gear, thereby locking or separating the lock tongue 902 from the cabinet 2. In this embodiment, the engagement of the transmission tooth 306 with the driving gear is used to realize the rotation of the lock tongue 902 with the upper locking assembly 3 or the lower locking assembly 5. The whole process realizes a linkage effect by applying force to the lock body 8, and there is no need to set up multiple lock bodies 8 respectively, thereby improving the efficiency of locking and unlocking.

[0042] Based on the same inventive concept, the present invention also provides a cabinet. Figure 1 The cabinet includes the above-mentioned lock structure of the large-size cabinet, and also includes a cabinet body 2 and a cabinet door 1 hinged to the cabinet body 2, and the lock structure of the large-size cabinet is connected to the cabinet door 1.

[0043] The cabinet provided by the present invention adopts the lock structure suitable for large-sized cabinets, and drives the upper locking unit to lock with the top of the cabinet 2 and the lower locking unit to lock with the bottom of the cabinet 2 by rotating the lock body 8, and the middle locking member 7 is also locked with the middle area of ​​the side wall of the cabinet 2, so that the cabinet door 1 and the cabinet 2 are kept locked in each area in the upper and lower directions, and the stability and reliability of the locking of the cabinet door 1 and the cabinet 2 are improved. In addition, the upper reinforcement component 4 is also locked with the middle part (left and right direction) of the top of the cabinet 2, and the lower reinforcement component 6 is locked with the middle part (left and right direction) of the bottom of the cabinet 2, so that the cabinet door 1 and the cabinet 2 are also locked in the middle area in the left and right directions. Since the width and height dimensions of the large-sized cabinet door 1 are relatively large, the present invention fixes each area of ​​the cabinet door 1 through the upper locking component 3, the upper fixing component, the lower locking component 5, the lower fixing component and the middle locking member 7, improves the stability and reliability of the locking of the cabinet door 1 and the cabinet 2, and also increases the sealing effect inside the cabinet 2. In addition, the present invention does not need to set a center beam at the opening of the cabinet 2, thereby ensuring the size of the opening area of ​​the cabinet 2, making it convenient for electrical components to enter and exit the cabinet 2, and facilitating subsequent maintenance of the electrical components.

[0044] As a specific embodiment of the cabinet, the cabinet also includes a support assembly 10 connected to the lower part of the cabinet door 1, the support assembly 10 includes a support frame 1001 connected to the cabinet door 1 and a support wheel 1002 connected to the support frame 1001 and rotatable about the left and right directions. When the cabinet door 1 is closed, the support wheel 1002 abuts against the floor of the cabinet body 2.

[0045] When closing the cabinet door 1, the support wheel 1002 first contacts the floor of the cabinet body 2 and provides support for the cabinet door 1 to prevent the cabinet door 1 from deforming or moving downward due to gravity, causing interference with the cabinet body 2 when closing. In addition, the design of the support wheel 1002 also reduces the resistance when closing the cabinet door 1.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The lock structure is suitable for large-sized cabinets, characterized in that: include: A lock body, used for connecting with the cabinet door; An upper locking unit, comprising an upper locking assembly connected to the lock body and an upper reinforcing assembly connected to the upper locking assembly, wherein the upper locking assembly and the upper reinforcing assembly are both used to lock with the top of the cabinet, the upper locking assembly is located at the opening and closing side of the cabinet door along the left-right direction, and the upper reinforcing assembly is located at the middle part of the cabinet door along the left-right direction; A lower locking unit, comprising a lower locking assembly connected to the lock body and a lower reinforcing assembly connected to the lower locking assembly, wherein the lower locking assembly and the lower reinforcing assembly are both used to lock with the bottom of the cabinet, the lower locking assembly is located at the opening and closing side of the cabinet door along the left-right direction, and the lower reinforcing assembly is located at the middle part of the cabinet door along the left-right direction; and A middle locking piece is connected to the lock body, and the middle locking piece is used to lock with the middle area of ​​the cabinet side wall.

2. The lock structure suitable for a large-sized cabinet according to claim 1, characterized in that: The lock structure suitable for large-size cabinets also includes a plurality of reinforced locking components spaced apart in the up-and-down directions, the upper locking component and the lower locking component are both connected to the reinforced locking components, and the reinforced locking components are used to lock with the side of the cabinet.

3. The lock structure suitable for a large-sized cabinet according to claim 1, characterized in that: The upper reinforcement assembly and the lower reinforcement assembly both include: A traction member, rotatably connected to the upper locking assembly or the lower locking assembly with the left and right directions as the rotation axis; The connecting member comprises a first connecting portion and a second connecting portion which are distributed at an angle, wherein the first connecting portion extends in the up-down direction and is rotatably connected to the pulling member with the left-right direction as a rotating axis, and the second connecting portion extends in the left-right direction; and The locking member is rotatably connected to the second connecting portion with the up-and-down direction as a rotating axis, and the locking member is used for plugging or abutting and locking with the cabinet.

4. The lock structure suitable for a large-sized cabinet as claimed in claim 3, characterized in that: The upper reinforcement component and the lower reinforcement component also respectively include a limiting member for connecting with the cabinet door, and the limiting member is provided with a limiting hole adapted to the locking member along the left-right direction, and the locking member is inserted into the limiting hole.

5. The lock structure suitable for a large-sized cabinet as claimed in claim 3, characterized in that: The locking member is rotatably connected to a guide wheel, and the guide wheel is used to reduce friction between the locking member and the cabinet body.

6. The lock structure suitable for a large-sized cabinet according to claim 1, characterized in that: The upper locking assembly and the lower locking assembly both include: A driving member connected to the lock body and extending in the up-down direction; A transmission member, one end of which is rotatably connected to the driving member around a horizontal axis and extends in the up-down direction, wherein the upper reinforcement assembly and the lower reinforcement assembly are respectively connected to the corresponding transmission member; and The fixing member is rotatably connected to the other end of the transmission member around a horizontal axis, and the fixing member is used for abutting or plugging and locking with the cabinet.

7. The lock structure suitable for a large-sized cabinet according to claim 6, characterized in that: The upper locking assembly and the lower locking assembly also respectively include limiting members for connecting with the cabinet door, and the limiting members are provided with limiting holes adapted to the fixing members in the up-down direction, and the fixing members are inserted into the limiting holes.

8. The lock structure suitable for a large-sized cabinet according to claim 6, characterized in that: The fixing member is rotatably connected with a rolling wheel, and the rolling wheel is used to reduce the friction between the fixing member and the cabinet.

9. The lock structure suitable for a large-sized cabinet according to claim 2, characterized in that: The upper locking assembly and the lower locking assembly both include transmission teeth arranged in the up-down direction, and the reinforced locking assembly includes: A fastener connected to the upper locking assembly or the lower locking assembly; a driving gear meshed with the transmission gear and rotatably connected to the fastener; and The lock tongue is connected to the driving gear, and the driving gear is used to drive the lock tongue to lock or separate from the cabinet.

10. A cabinet, characterized in that: The lock structure of the large-size cabinet according to any one of claims 1 to 9 further comprises a cabinet body and a cabinet door hinged to the cabinet body, and the lock structure of the large-size cabinet is connected to the cabinet door.

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