Switch cabinet valve locking device

Abstract

The utility model relates to the field of switch cabinets, in particular to a switch cabinet valve locking device which comprises a switch cabinet, one side of the switch cabinet is rotatably connected with a cabinet door, and one side of the cabinet door is provided with a handle used for bearing the whole. The rotating direction of the connecting shaft is limited through the torsion spring, the limiting rod can be firmly clamped in a groove formed by the trapezoid fixing block and the connecting groove, the limiting block is limited through the limiting groove, the rotating angle of the connecting shaft is fixed, the rotating position of the limiting rod cannot exceed the lowest position of the trapezoid fixing block, and therefore the limiting rod can stably rotate. When the cabinet door is closed, the limiting rod is driven to move along the surface of the trapezoidal fixing block, so that torsion is applied to the torsion spring, the torsion spring can be smoothly clamped into the groove, locking of the cabinet door can be smoothly completed through the simple structure, magnetic force does not need to be used for limiting the limiting rod, the service life of the cabinet door is prolonged, and due to the fact that the structure is simple, cost is low. And the failure rate is low during use.

Description

Technical Field

[0001] The utility model relates to the field of switch cabinets, in particular to a switch cabinet movable door locking device. Background Art

[0002] The switch cabinet is an electrical equipment. The external line of the switch cabinet first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high-voltage and low-voltage room switch cabinets, with high-voltage busbars, such as power plants, etc. Some also have low-frequency load shedding to protect the main equipment.

[0003] After searching, a utility model patent with publication number CN218386396U specifically discloses a switch cabinet valve door locking device, including a switch cabinet, on which a cabinet door is hinged; a valve door locking mechanism, which includes a mounting tube, a handle, a connecting shaft and a clamping piece, a mounting hole is opened on the cabinet door, the mounting tube is arranged inside the mounting hole, the connecting shaft is inserted into the mounting tube, and the handle is connected to one end of the connecting shaft; two groups of U-shaped locking blocks, two groups of the U-shaped locking blocks are relatively arranged inside the mounting tube; two inserts, two of the inserts are relatively arranged on the connecting shaft. The present application can lock the handle through the mounting tube, the handle, the connecting shaft, the U-shaped locking block and the insert, so that the handle cannot be rotated and the cabinet door cannot be opened, thereby preventing the cabinet door from being opened when personnel accidentally touch or hit the handle during inspection, inspection, movement or maintenance, thereby improving the safety performance of the cabinet door.

[0004] In the above patent, the internal limit is ultimately achieved through the magnetic attraction of magnets and card blocks. However, during use, the magnetic force of the magnet will fade, causing the locking device to lose its limiting function. In addition, the internal structure is relatively complex. During use, if the handle is rotated improperly, it is easy to get stuck, affecting the normal use of the cabinet door.

[0005] Therefore, it is necessary to invent a switch cabinet door locking device to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a switch cabinet valve locking device, which limits the connecting shaft by a torsion spring, so that the limiting rod can be clamped in the groove formed by the connecting groove and the trapezoidal fixing block, so as to solve the problem that the locking needs to rely on magnetic force in the prior art, which affects its service life and has a complex internal structure, which may cause jamming during use.

[0007] In order to achieve the above-mentioned object, the utility model provides the following technical solutions: a switch cabinet door locking device, comprising: a switch cabinet, one side of which is rotatably connected to a cabinet door, and one side of which is provided with a handle for supporting the whole;

[0008] A positioning structure, arranged on one side of the handle, for rotating and positioning the handle;

[0009] A driving structure, disposed in the cabinet door, for driving the handle;

[0010] The clamping structure is arranged on the inner wall of the switch cabinet and is used to lock the cabinet door.

[0011] Preferably, the positioning structure comprises: a connecting tube, the connecting tube is installed on one side of the cabinet door, and two groups of limiting grooves are symmetrically opened on the inner wall of the connecting tube.

[0012] Preferably, a connecting shaft is connected through the connecting cylinder, a limiting block is fixedly connected to one side of the connecting shaft, and the limiting block is slidably connected to the limiting groove.

[0013] Preferably, the driving structure comprises: a connecting hole, the connecting hole is provided in the cabinet door, the connecting hole is connected with the connecting shaft through, a slot is provided on the inner wall of the connecting hole, a torsion spring is fixedly connected in the slot, and the torsion spring is fixedly sleeved with the connecting shaft.

[0014] Preferably, the clamping structure comprises: a limiting rod, the limiting rod is fixedly connected to one side of the connecting shaft, a clamping block is fixedly connected to the inner wall of the switch cabinet, and a connecting groove is provided in the clamping block.

[0015] Preferably, a trapezoidal fixing block is fixedly connected in the connecting groove, the trapezoidal fixing block forms a groove in the connecting groove, and the groove is clamped with the limiting rod.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] The rotation direction of the connecting shaft is limited by the torsion spring, so that the limit rod can be firmly engaged in the groove formed by the trapezoidal fixing block and the connecting groove, and because the limit groove limits the limit block, the rotation angle of the connecting shaft is fixed, so that the rotation position of the limit rod will not exceed the lowest point of the trapezoidal fixing block, so that when the cabinet door is closed, the limit rod will be driven to move along the surface of the trapezoidal fixing block, thereby applying torsion to the torsion spring so that it can be smoothly engaged in the groove. The cabinet door can be locked smoothly through this simple structure, and there is no need to use magnetic force to limit the limit rod, thereby increasing its service life. In addition, due to the simple structure, the failure rate during use is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model from a top view;

[0021] Figure 3 This is a schematic diagram of the structure of the trapezoidal fixed block of the utility model;

[0022] Figure 4 This is a schematic diagram of the limit groove structure of the utility model;

[0023] Figure 5 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0024] Description of reference numerals:

[0025] 001, switch cabinet; 101, cabinet door; 102, handle; 002, positioning structure; 201, connecting tube; 202, limiting groove; 203, connecting shaft; 204, limiting block; 003, driving structure; 301, connecting hole; 302, clamping slot; 303, torsion spring; 004, clamping structure; 401, limiting rod; 402, clamping block; 403, connecting groove; 404, trapezoidal fixing block. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0027] The utility model provides Figure 1-5 The switch cabinet door locking device shown in the figure comprises: a switch cabinet 001, a cabinet door 101 is rotatably connected to one side of the switch cabinet 001, and a handle 102 is provided on one side of the cabinet door 101 for supporting the whole;

[0028] The positioning structure 002 is provided on one side of the handle 102 and is used to rotate and position the handle 102;

[0029] The driving structure 003 is disposed in the cabinet door 101 and is used to drive the handle 102;

[0030] The clamping structure 004 is arranged on the inner wall of the switch cabinet 001 and is used to lock the cabinet door 101 .

[0031] like Figure 4 and Figure 5 As shown, the positioning structure 002 includes: a connecting tube 201, which is installed on one side of the cabinet door 101. Two groups of limiting grooves 202 are symmetrically opened on the inner wall of the connecting tube 201. The limiting grooves 202 limit the limiting block 204, so that the connecting shaft 203 drives the limiting rod 401 to an angle that will not be lower than the lowest position of the trapezoidal fixed block 404.

[0032] like Figure 4 and Figure 5 As shown, a connecting shaft 203 is connected through the connecting cylinder 201, and a limiting block 204 is fixedly connected to one side of the connecting shaft 203. The limiting block 204 is slidably connected to the limiting groove 202. Through the sliding of the limiting block 204 and the limiting groove 202, the connecting shaft 203 can be positioned and rotated.

[0033] like Figure 5 As shown, the driving structure 003 includes: a connecting hole 301, which is opened in the cabinet door 101, and is connected with the connecting shaft 203 through it. A slot 302 is opened on the inner wall of the connecting hole 301, and a torsion spring 303 is fixedly connected in the slot 302. The torsion spring 303 is fixedly connected to the connecting shaft 203, and the connecting shaft 203 can be driven to rotate by the torsion spring 303, so that the limiting rod 401 can be clamped in the connecting slot 403.

[0034] like Figure 3 and Figure 5 As shown, the clamping structure 004 includes: a limiting rod 401, which is fixedly connected to one side of the connecting shaft 203, and a clamping block 402 is fixedly connected to the inner wall of the switch cabinet 001, and a connecting groove 403 is opened in the clamping block 402.

[0035] like Figure 3 and Figure 5 As shown, a trapezoidal fixing block 404 is fixedly connected in the connecting groove 403, and the trapezoidal fixing block 404 forms a groove in the connecting groove 403, which is engaged with the limiting rod 401. The cabinet door 101 is limited by docking the connecting groove 403 and the limiting rod 401 and limiting by the trapezoidal fixing block 404.

[0036] How this utility works:

[0037] Refer to the instruction manual Figure 1-5By turning the handle 102, the handle 102 drives the connecting shaft 203 to rotate, and the connecting shaft 203 drives the limiting block 204 to slide along the limiting groove 202, so that the connecting shaft 203 drives the limiting rod 401 to disengage from the groove formed by the trapezoidal fixing block 404 and the connecting groove 403. At this time, the cabinet door 101 is rotated from the switch cabinet 001 to open, and because the limiting groove 202 limits the limiting block 204, the rotation angle of the connecting shaft 203 is fixed, so that after the handle 102 is released, the limiting rod 401 will not rotate to the trapezoidal fixing When the cabinet door 101 needs to be closed, the cabinet door 101 is pushed to reset. At this time, the limit rod 401 moves along the surface of the trapezoidal fixed block 404, and continuously drives the connecting shaft 203 to rotate, and applies torque to the torsion spring 303 through the rotation of the connecting shaft 203. When the limit rod 401 moves to the groove, the torsion spring 303 releases the torque, causing the limit rod 401 to slide into the groove, thereby completing the locking of the cabinet door 101. This structure automatically limits and fixes when locked, and has a simple internal structure and is easy to use.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A switch cabinet door locking device, characterized in that: include: A switch cabinet (001), wherein a cabinet door (101) is rotatably connected to one side of the switch cabinet (001), and a handle (102) is provided on one side of the cabinet door (101) for supporting the whole; A positioning structure (002), arranged on one side of the handle (102), for rotating and positioning the handle (102); A driving structure (003) is disposed in the cabinet door (101) and is used to drive the handle (102); A clamping structure (004) is arranged on the inner wall of the switch cabinet (001) and is used to lock the cabinet door (101); The positioning structure (002) comprises: a connecting tube (201), the connecting tube (201) being mounted on one side of the cabinet door (101), two groups of limiting grooves (202) being symmetrically provided on the inner wall of the connecting tube (201), a connecting shaft (203) penetrating and connected inside the connecting tube (201), a limiting block (204) being fixedly connected to one side of the connecting shaft (203), and the limiting block (204) being slidably connected to the limiting groove (202); The driving structure (003) comprises: a connecting hole (301), the connecting hole (301) being provided in the cabinet door (101), the connecting hole (301) being connected to the connecting shaft (203) through the connecting hole (301), a slot (302) being provided on the inner wall of the connecting hole (301), a torsion spring (303) being fixedly connected in the slot (302), and the torsion spring (303) being sleeved and fixed to the connecting shaft (203); The clamping structure (004) comprises: a limiting rod (401), the limiting rod (401) is fixedly connected to one side of the connecting shaft (203), a clamping block (402) is fixedly connected to the inner wall of the switch cabinet (001), and a connecting groove (403) is provided in the clamping block (402).

2. A switch cabinet door locking device according to claim 1, characterized in that: A trapezoidal fixing block (404) is fixedly connected in the connection groove (403), and the trapezoidal fixing block (404) forms a groove in the connection groove (403), and the groove is clamped with the limiting rod (401).

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