Drawer type switch cabinet locking mechanism

Abstract

The utility model provides a drawer type switch cabinet locking mechanism which comprises at least one layer of drawer, an outer panel of the drawer is provided with a locking unit and a protection unit, the edge of a space for accommodating the drawer is provided with a locking sheet, the protection unit comprises an abutting head, the outer panel is provided with a guide hole, and the abutting head can retract into the guide hole. After the drawer is pushed into the containing cavity, the locking piece can push the abutting head to be locked into the guide hole. The locking unit comprises a spring bolt, when the abutting head is arranged on the outer side of the guide hole, the end of the spring bolt can abut against the abutting head, when the abutting head enters the guide hole, the spring bolt can move towards the abutting head, and the locking piece can be arranged between the spring bolt and the outer panel. According to the utility model, the mode that the spring bolt, the propping head and the locking piece are matched is adopted, when the drawer is not completely pushed into the accommodating cavity, the propping head props against the spring bolt to prevent the spring bolt from stretching out, and when the drawer is completely pushed into the accommodating cavity, the locking piece props against the propping head into the guide hole, and the spring bolt can be locked with the locking piece, so that the virtual building of a drawer plug connector is prevented.

Description

Technical Field

[0001] The utility model belongs to the field of switch cabinet design, in particular to a pull-out type switch cabinet locking mechanism. Background Art

[0002] The drawer-type switch cabinet is made of a closed shell made of iron sheet. The electrical components of the incoming and outgoing line circuits are installed in the drawer, which can form a functional unit that can complete a certain type of power supply task. In order to ensure that the electrical components in the drawer work properly, a control gate that controls the connection between the electrical components of the drawer circuit and the primary, secondary and other circuits is placed on each drawer. The operator can control the on and off of the electrical components in the drawer through a special hexagonal handle through the outer panel of the drawer. Under normal circumstances, when the drawer is pulled out, the control gate needs to be rotated to the cut-off state so that the electrical components are disconnected from the first and second circuits. Then the drawer is pulled out. After the inspection is completed, the drawer is pushed into the cabinet, and the hexagonal handle is rotated again to complete the connection between the electrical components and the first or second circuit. However, in actual operation, some operators are negligent in whether the drawer is fully pushed into the cabinet. When the drawer is not fully pushed into the cabinet, the control gate is adjusted, resulting in a virtual connection between the main contact of the drawer and the circuit. On the surface, the electrical components on the drawer are in working condition. In fact, a large amount of heat will be generated during the operation of the circuit, resulting in damage to the connector between the drawer and the circuit, affecting the device, and even posing safety hazards such as fire. Utility Model Content

[0003] In view of this, the utility model aims to provide a drawer-type switch cabinet locking mechanism to ensure that the drawer of the switch cabinet can be fully pushed into the cabinet body, thereby reducing the use risk of the switch cabinet.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A locking mechanism for a drawer-type switch cabinet comprises a cabinet body, which comprises at least one layer of drawers and a receiving cavity for receiving the drawers, wherein a locking unit and a protection unit are arranged on an outer panel of the drawer, a locking sheet is arranged on an edge of the receiving cavity, the protection unit comprises an abutting head arranged opposite to the locking sheet, a guide hole is opened on the outer panel, the abutting head can extend out of or retract into the guide hole, and when the drawer is pushed into the receiving cavity, the locking sheet can push the abutting head to lock in the guide hole;

[0006] The locking unit includes a locking tongue, and the locking tongue can move in a first direction along the inner surface of the outer panel, and when the abutting head is placed outside the guide hole, the end of the locking tongue can abut against the side wall of the abutting head, and when the abutting head enters the guide hole, the locking tongue can move toward the abutting head, and the locking plate can be placed between the locking tongue and the outer panel.

[0007] Furthermore, a guide groove is formed on the outer panel, and the locking tongue is connected to a guide piece, which is placed in the guide groove.

[0008] Furthermore, a spring is built into the guide hole, one end of the spring abuts against the abutting head, and when the abutting head moves into the guide hole, the spring is subjected to force and elastically deforms.

[0009] Furthermore, a accommodating space is opened in the outer panel, a long hole is opened at the bottom of the guide groove, a rack portion is provided on one side edge of the guide plate, and the rack portion passes through the long hole and is placed in the accommodating space, and a transmission tooth plate is also provided in the accommodating space, and the transmission tooth plate is meshed with the rack portion.

[0010] Furthermore, an operating hole is opened on the outer panel, and the operating hole is opposite to the control gate of the switch cabinet. The rotating shaft of the transmission gear is connected to a handle, and when the lock tongue abuts against the head, the end of the handle can cover the operating hole.

[0011] Furthermore, the transmission gear piece is fan-shaped.

[0012] Furthermore, the groove walls of the guide groove respectively extend inwardly to form limiting edges, and the width of the guide piece is smaller than the width of the two limiting edges.

[0013] Furthermore, the length of the limiting edge is smaller than the length of the guide groove, and the limiting edge is disposed at an end of the guide groove away from the abutting head.

[0014] Furthermore, a cavity is formed in the abutting head, and the end of the spring is inserted into the cavity.

[0015] Furthermore, a blocking piece is fixedly provided on one side of the guide hole, and the other end of the spring is tightly against the blocking piece.

[0016] Compared with the prior art, the drawer-type switch cabinet locking mechanism described in the utility model has the following advantages:

[0017] The utility model adopts the mode of cooperation between the lock tongue, the abutting head and the locking piece. When the drawer is not fully pushed into the accommodating cavity, the abutting head abuts the lock tongue to prevent the lock tongue from extending. When the drawer is fully pushed into the accommodating cavity, the locking piece pushes the abutting head into the guide hole, and the lock tongue can be locked with the locking piece, thereby preventing the drawer connector from being falsely connected and avoiding safety hazards.

[0018] A handle capable of covering the operating hole is adopted to prevent an operator from turning an internal control gate through the operating hole when the drawer is not completely inserted into the accommodating cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0020] Figure 1 Schematic diagram of the overall structure of the switch cabinet;

[0021] Figure 2 This is a schematic diagram of the drawer structure;

[0022] Figure 3 It is a cross-sectional view of the locking unit, the protection unit and the outer panel;

[0023] Figure 4 It is a schematic diagram of the transmission structure of the locking unit.

[0024] Description of reference numerals:

[0025] 1-cabinet; 11-accommodating cavity; 12-locking plate; 2-drawer; 21-outer panel; 22-guide hole; 221-limiting ring; 23-guide groove; 231-limiting edge; 232-long hole; 24-operating hole; 25-blocking plate; 3-locking unit; 31-guide strip; 311-locking tongue; 312-rack part; 32-handle; 33-transmission gear; 4-protection unit; 41-butt head; 411-limiting ring; 42-spring. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] The drawer 2 type switch cabinet locking mechanism described in the utility model includes a cabinet body 1, which includes at least one layer of drawers 2 and a storage cavity 11 for accommodating the drawers 2, and a partition plate is provided above each layer of the storage cavity 11. Those skilled in the art should know that the crossbeam can also be a crossbeam arranged on the outer side of the two drawers 2, and a locking unit 3 and a protection unit 4 are provided on the outer panel 21 of the drawer 2. A locking piece 12 is provided on the edge of the storage cavity. In this embodiment, the locking piece 12 is fixed on the crossbeam, and the protection unit 4 includes a stop head 41 arranged opposite to the locking piece 12. A guide hole 22 is opened on the outer panel 21, and the stop head 41 can extend or retract the guide hole 22, and when the drawer 2 is pushed into the storage cavity 11, the locking piece 12 can push the stop head 41 to lock the guide hole 22. Specifically, the guide hole A spring 42 is built into 22, and a baffle 25 is fixedly provided at one end of the guide hole 22 away from the abutting head 41, one end of the spring 42 abuts on the abutting head 41, and the other end tightly abuts on the baffle 25. Those skilled in the art should know that the baffle 25 can be fixed to the outer side of the outer panel 21 by bolts, inlaying, etc., and when the abutting head 41 moves into the guide hole 22, the spring 42 is elastically deformed by force. More specifically, one end of the abutting head 41 extends outward from the guide hole 22 to extend a limiting ring 411, and a limiting ring 221 extends inward from the edge of the guide hole 22. When the abutting head 41 moves outward to the extreme position, the limiting ring 411 can tightly abut on the limiting ring 221. When the drawer 2 is pushed into the accommodating cavity 11, the abutting head 41 contacts the causing piece and is pushed into the guide hole 22 by the locking piece 12.

[0031] A guide groove 23 is formed on the inner side of the outer panel 21 of the drawer 2, and a guide piece is disposed in the guide groove 23, so that the guide piece can move in the guide groove 23 along a first direction, wherein the first direction is a direction close to or away from the locking piece 12. Specifically, in the present embodiment, when the drawer 2 is fully pushed into the accommodating cavity 11, the guide groove 23 is located directly below the locking piece 12; the locking unit 3 includes a locking tongue 311 and a handle 32 for controlling the movement of the locking tongue 311, which is fixed at one end of the guide piece, and the locking tongue 311 is connected to the outer panel 21. A gap is left between the two sides for inserting the locking piece 12. When the guide piece moves to the upper limit position along the first direction, the locking piece 12 can be placed between the locking tongue 311 and the outer panel 21. When the guide piece moves to the lower limit position, the abutting head 41 moves outward and is directly above the locking tongue 311. At this time, when the guide piece moves upward, the locking tongue 311 can abut against the side wall of the abutting head 41, so that when the drawer 2 is pulled out, the abutting head 41 abuts against the locking tongue 311, thereby preventing the locking tongue 311 from affecting the closing of the drawer 2 when the drawer 2 is closed.

[0032] The outer panel 21 is provided with a receiving space, the bottom of the guide groove 23 is provided with a long hole 232, the edge of one side of the guide piece is provided with a rack portion 312, and the rack portion 312 passes through the long hole 232 and is placed in the receiving space, a fan-shaped transmission tooth piece 33 is also provided in the receiving space, the transmission tooth piece 33 is meshed with the rack portion 312, the rotation axis of the transmission tooth piece 33 extends outward from the receiving space and is connected to the handle 32, and the rotation of the transmission tooth piece 33 is controlled by the handle 32, and an operating hole 24 is provided on the outer panel 21, the operating hole 24 is opposite to the control gate of the switch cabinet, and when the lock tongue 311 abuts against the abutting head 41, the end of the handle 32 can cover the operating hole 24, more specifically, in the present embodiment, the operating hole 24 is located directly below the rotation axis of the handle 32, when the handle 32 is rotated downward to the extreme position, the end of the handle 32 can block the operating hole 24, to prevent the operator from inserting the key of the control gate into the operating hole 24 when the drawer 2 is not locked.

[0033] The groove walls of the guide groove 23 respectively extend inward to form limiting edges 231, and the width of the guide piece is smaller than the width of the two limiting edges 231, thereby preventing the guide bar 31 from slipping out of the guide groove 23. At the same time, the length of the limiting edge 231 is smaller than the length of the guide groove 23, and the limiting edge 231 is placed at the end of the guide groove 23 away from the abutting head 41 to facilitate the installation of the guide bar 31. After the guide bar 31 is installed, the guide bar 31 is limited by its own gravity, the abutting head 41, etc., to prevent the guide bar 31 from slipping out of the guide groove 23.

[0034] The abutting head 41 has a cavity therein, and the end of the spring 42 is inserted into the cavity, thereby saving space in the guide hole 22 and making it easier for the abutting head 41 to be fully inserted into the guide hole 22 .

[0035] Those skilled in the art should know that an observation window is also provided on one side of the operating hole 24 to facilitate observation of the state of the control gate on the drawer 2 .

[0036] The drawer 2 type switch cabinet locking mechanism of the utility model is used in the process of using, firstly inserting the operating hole 24 through the special hexagonal handle to change the state of the control gate, so that the device circuit on the drawer 2 is cut off from each circuit, and then the handle 32 is pulled to make the lock tongue 311 fall down, and the drawer 2 pops out under the action of the top block, and the maintenance personnel can pull out the drawer 2 to inspect the device. At this time, the end of the handle 32 blocks the operating hole 24, and at the same time, because the top head 41 abuts against the lock tongue 311, the handle 32 is prevented from being rotated, resulting in the exposure of the operating hole 24, and the operator is prevented from mistakenly changing the state of the control gate when the drawer 2 is not fully pushed into the switch cabinet, resulting in virtual connection of the circuit plug connector of the drawer 2; when the maintenance is completed, the drawer 2 is pushed into the accommodating cavity 11, during this process, the top head 41 contacts the locking plate 12 and is pushed into the guide hole 22, and when the drawer 2 is fully pushed into the guide hole 22, the top head 41 is separated from the lock tongue 311, so that the handle 32 can be pulled, and the lock tongue 311 can move upward to lock the drawer 2.

[0037] Those skilled in the art should know that when the drawer 2 is locked, the friction between the lock tongue 311 and the locking plate 12 can prevent the lock tongue 311 from falling, and a locking structure can be provided at the shaft of the handle 32 to prevent the lock tongue 311 from falling. The locking structure is the same as the shaft structure of the rotating handle in the market doors and windows, and will not be repeated here.

[0038] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drawer-type switch cabinet locking mechanism, characterized in that: The cabinet comprises at least one layer of drawers and a receiving cavity for receiving the drawers, a locking unit and a protection unit are arranged on the outer panel of the drawer, a locking sheet is arranged on the edge of the receiving cavity, the protection unit comprises an abutting head arranged opposite to the locking sheet, a guide hole is opened on the outer panel, the abutting head can extend out of or retract into the guide hole, and when the drawer is pushed into the receiving cavity, the locking sheet can push the abutting head to lock in the guide hole; The locking unit includes a locking tongue, and the locking tongue can move in a first direction along the inner surface of the outer panel, and when the abutting head is placed outside the guide hole, the end of the locking tongue can abut against the side wall of the abutting head, and when the abutting head enters the guide hole, the locking tongue can move toward the abutting head, and the locking plate can be placed between the locking tongue and the outer panel.

2. The drawer-type switch cabinet locking mechanism according to claim 1, characterized in that: A guide groove is formed on the outer panel, and the locking tongue is connected to a guide piece, which is placed in the guide groove.

3. The drawer-type switch cabinet locking mechanism according to claim 1, characterized in that: A spring is built into the guide hole, one end of the spring abuts against the abutting head, and when the abutting head moves into the guide hole, the spring is subjected to force and elastically deformed.

4. The drawer-type switch cabinet locking mechanism according to claim 2, characterized in that: The outer panel has a storage space, the bottom of the guide groove has a long hole, one side edge of the guide plate has a rack portion, and the rack portion passes through the long hole and is placed in the storage space. The storage space also has a transmission tooth plate, which meshes with the rack portion.

5. The drawer-type switch cabinet locking mechanism according to claim 4, characterized in that: An operating hole is opened on the outer panel, and the operating hole is opposite to the control gate of the switch cabinet. The rotating shaft of the transmission gear is connected to a handle, and when the lock tongue abuts against the abutment head, the end of the handle can cover the operating hole.

6. The drawer-type switch cabinet locking mechanism according to claim 4, characterized in that: The transmission gear piece is fan-shaped.

7. The drawer-type switch cabinet locking mechanism according to claim 2, characterized in that: The groove walls of the guide groove respectively extend inwardly to form limiting edges, and the width of the guide piece is smaller than the width of the two limiting edges.

8. The drawer-type switch cabinet locking mechanism according to claim 7, characterized in that: The length of the limiting edge is smaller than the length of the guide groove, and the limiting edge is disposed at an end of the guide groove away from the abutting head.

9. The drawer-type switch cabinet locking mechanism according to claim 3, characterized in that: A cavity is formed in the abutting head, and the end of the spring is inserted into the cavity.

10. The drawer-type switch cabinet locking mechanism according to claim 3, characterized in that: A blocking piece is fixedly arranged on one side of the guide hole, and the other end of the spring is tightly against the blocking piece.

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