Locking device for preventing mistaken entry into electrified interval
By designing a locking device including energized coil, electromagnet, spiral coil and telescopic hook, the problem of damage to mechanical locks in the prior art cannot be locked normally, and the safe and stable locking of the partition door is achieved.
Patent Information
- Application Number
- CN202421855410.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-08-01
AI Technical Summary
Existing locking devices with mechanical locking or electromagnetic locking are prone to damage to the lock during long-term use, resulting in the compartment door being unable to lock normally, which poses safety hazards.
A locking device including an energized coil, an electromagnet, a spiral coil and a telescopic hook are designed. The energized coil is connected to the power supply of the live compartment. The current generates a magnetic field through the spiral coil, which pushes the telescopic hook to fix the locking pin in the rotating groove to ensure the locking of the compartment door.
Through the coordination of the electromagnet and the magnetic field, the stable fixation of the lock pin is achieved, the problem of mechanical lock damage is avoided, the safe locking of the compartment door is ensured, and the service life and safety of the equipment are improved.
Smart Images
Figure CN222863103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of live compartment locking equipment, in particular to a locking device for preventing mistaken entry into a live compartment. Background Art
[0002] The locking device to prevent accidental entry into the live compartment is a safety device used to ensure that workers do not accidentally enter the live electrical equipment compartment, thereby avoiding electric shock accidents. These locking devices play a vital role in the power system, effectively ensuring the safety of workers and reducing equipment damage and power outages caused by misoperation.
[0003] In the prior art, most locking devices use mechanical locking or electromagnetic locking structures;
[0004] Mechanical locking mostly uses locks to lock equipment or compartment doors in a closed position to prevent people from entering by mistake. However, this type of mechanical locking may be damaged during long-term use, resulting in the compartment door being unable to lock normally. Utility Model Content
[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a locking device for preventing accidental entry into a live interval, so as to solve the technical problems mentioned in the above background technology.
[0006] The above technical objectives of the utility model are achieved through the following technical solutions:
[0007] A locking device for preventing accidental entry into an energized compartment comprises a compartment door frame and a compartment door, wherein rotation grooves are provided on both sides of the compartment door frame, an installation groove is provided on the inner groove wall of the rotation groove, an electromagnet is provided inside the installation groove, an energized coil is provided inside the electromagnet, the upper end of the energized coil is a spiral coil, a telescopic hook is inserted into the spiral coil, a locking pin is provided inside the rotation groove, and a locking pin groove is provided at a position of the compartment door corresponding to the locking pin.
[0008] Furthermore, the locking pin includes a rotating shaft, which is installed inside the rotating groove. An extension rod is fixedly connected to the outer surface of the rotating shaft. The extension rod is made of a metal material that can be magnetically adsorbed. A locking hook is provided on the side of the extension rod away from the rotating shaft.
[0009] Furthermore, the telescopic hook includes a fixing rod, which is fixedly connected to the inner wall of the mounting groove, and is inserted into the interior of the spiral coil. A sliding sleeve is provided on the outer surface of the fixing rod, and a fixing hook is provided at one end of the sliding sleeve.
[0010] Furthermore, an adsorption plate is provided at a position of the extension rod corresponding to the electromagnet.
[0011] Furthermore, the energized coil is interconnected with an internal power source of the energized compartment.
[0012] Furthermore, a groove matching with the lock hook is arranged inside the lock pin groove, and both sides of the lock hook are arranged in an arc shape.
[0013] In summary, the present invention includes at least one of the following beneficial technical effects:
[0014] 1. A locking device for preventing mistaken entry into a live compartment, wherein the energized coil is connected to a power line in the live compartment, and when there is electricity in the live compartment, current exists in the energized coil, and then, in conjunction with the setting of the electromagnet, an attractive force is generated to absorb the locking pin, and the locking pin is fixed inside the rotating groove, and the front end of the locking groove is stuck in the lock pin groove, so as to achieve the purpose of fixing the compartment door frame and the compartment door to each other;
[0015] 2. This locking device for preventing accidental entry into a live interval, through the setting of a spiral coil, generates a magnetic field around the spiral coil when current passes through the spiral coil, thereby pushing the telescopic hook in the direction of current movement, and the telescopic hook hooks the side wall of the locking pin, further fitting the locking pin and the inside of the rotating groove together, thereby achieving the effect of improving the stability of the locking pin. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 The utility model is a structural schematic diagram of a locking device for preventing accidental entry into a live interval.
[0018] Figure 2 The utility model is a structural schematic diagram of a compartment door frame of a locking device for preventing accidental entry into a live compartment.
[0019] Figure 3 The utility model is a structural schematic diagram of a compartment door of a locking device for preventing accidental entry into a live compartment.
[0020] Figure 4 The utility model is a schematic structural diagram of a locking pin of a locking device for preventing accidental entry into a live interval.
[0021] In the figure, 1. compartment door frame; 2. compartment door; 3. rotating groove; 4. mounting groove; 5. electromagnet; 6. energized coil; 7. spiral coil; 8. telescopic hook; 81. fixed rod; 82. sliding sleeve; 83. fixed hook; 9. locking pin; 91. rotating shaft; 92. extension rod; 93. locking hook; 94. adsorption plate; 10. locking pin groove; 11. groove. DETAILED DESCRIPTION
[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0023] Example:
[0024] Reference Figure 1-Figure 4 The utility model discloses a locking device for preventing accidental entry into a live compartment, comprising a compartment door frame 1 and a compartment door 2, wherein rotation grooves 3 are provided on both sides of the compartment door frame 1, an installation groove 4 is provided on the inner groove wall of the rotation groove 3, an electromagnet 5 is provided inside the installation groove 4, an energized coil 6 is provided inside the electromagnet 5, the upper end of the energized coil 6 is a spiral coil 7, a telescopic hook 8 is inserted into the spiral coil 7, a locking pin 9 is provided inside the rotation groove 3, and a lock pin groove 10 is provided on the compartment door 2 at a position corresponding to the locking pin 9.
[0025] In this embodiment, since the energized coil 6 is connected to the power line in the charged compartment, when there is electricity in the charged compartment, current exists in the energized coil 6. Since there is current inside the energized coil 6, an attraction force is generated through the setting of the electromagnet 5, which absorbs the locking pin 9 and fixes the locking pin 9 inside the rotating groove 3, and the front end of the locking pin 9 is stuck in the locking pin groove 10, so as to achieve the purpose of fixing the compartment door frame 1 and the compartment door 2 to each other;
[0026] And through the setting of the spiral coil 7, when the current passes through the spiral coil 7, a magnetic field is generated around the spiral coil 7, thereby pushing the telescopic hook 8 in the direction of the current movement ( Figure 4 6A is the direction of current movement), the telescopic hook 8 hooks the side wall of the locking pin 9, and further fits the locking pin 9 and the inside of the rotating groove 3 to each other, thereby achieving the effect of improving the stability of the locking pin 9.
[0027] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the locking pin 9 includes a rotating shaft 91, which is installed inside the rotating groove 3. The outer surface of the rotating shaft 91 is fixedly connected to an extension rod 92, and the extension rod 92 is made of a metal material that can be magnetically adsorbed. A locking hook 93 is provided on the side of the extension rod 92 away from the rotating shaft 91.
[0028] In this embodiment, the extension rod 92 is rotatably connected to the groove wall of the rotating groove 3 by the setting of the rotating shaft 91. Since the extension rod 92 is made of metal material that can be magnetically adsorbed, when there is current in the energized coil 6, the extension rod 92 can be attracted by the magnetic force generated by the electromagnet 5, thereby achieving the purpose of fixing the extension rod 92. The lock hook 93 is set to hook the lock pin groove 10, thereby achieving the purpose of fixing the compartment door frame 1 and the compartment door 2 to each other.
[0029] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the telescopic hook 8 includes a fixing rod 81, which is fixedly connected to the inner wall of the mounting groove 4, and the fixing rod 81 is inserted into the interior of the spiral coil 7. A sliding sleeve 82 is provided on the outer surface of the fixing rod 81, and a fixing hook 83 is provided at one end of the sliding sleeve 82.
[0030] In this embodiment, the fixed rod 81 is used to install the sliding sleeve 82. Since the sliding sleeve 82 is made of a metal material that is easily affected by the magnetic field, the current passing through the spiral coil 7 during use can push the sliding sleeve 82 to move in the direction of the current. The movement of the sliding sleeve 82 and the fixed hook 83 can achieve the purpose of limiting the extension rod 92 again, thereby achieving the effect of improving the stability of the extension rod 92.
[0031] In a further preferred embodiment of the present invention, Figure 1-4 As shown, an adsorption plate 94 is provided at a position of the extension rod 92 corresponding to the electromagnet 5 .
[0032] In this embodiment, by providing the adsorption plate 94 , when the electromagnet 5 generates suction to suck the extension rod 92 into contact, the impact force is reduced, thereby preventing the impact force of the extension rod 92 from damaging the electromagnet 5 .
[0033] In a further preferred embodiment of the present invention, Figure 1-4 As shown, the energized coil 6 is connected to the internal power supply of the energized compartment.
[0034] In this embodiment, since the energized coil 6 is interconnected with the power supply of the electrified compartment, when there is current in the electrified compartment, the energized coil 6 is always in an energized state, so that the compartment door 2 and the compartment door frame 1 are always in a closed state.
[0035] In a further preferred embodiment of the present invention, Figure 1-4 As shown, a groove 11 matching with the locking hook 93 is arranged inside the locking pin groove 10, and both sides of the locking hook 93 are arranged in an arc shape.
[0036] In this embodiment, the connection stability between the extension rod 92 and the lock pin groove 10 is improved by the arrangement of the lock hook 93 and the groove 11, thereby achieving the effect of improving the locking stability.
[0037] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, all equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A locking device for preventing accidental entry into a live compartment, comprising a compartment door frame (1) and a compartment door (2), characterized in that: The compartment door frame (1) is provided with a rotation groove (3) on both sides, the inner groove wall of the rotation groove (3) is provided with a mounting groove (4), an electromagnet (5) is arranged inside the mounting groove (4), an energized coil (6) is arranged inside the electromagnet (5), the upper end of the energized coil (6) is a spiral coil (7), a telescopic hook (8) is inserted into the spiral coil (7), a locking pin (9) is arranged inside the rotation groove (3), and a locking pin groove (10) is arranged at a position of the compartment door (2) corresponding to the locking pin (9).
2. A locking device for preventing accidental entry into a live compartment according to claim 1, characterized in that: The locking pin (9) comprises a rotating shaft (91), the rotating shaft (91) is installed inside the rotating groove (3), an extension rod (92) is fixedly connected to the outer surface of the rotating shaft (91), the extension rod (92) is made of a metal material that can be magnetically adsorbed, and a locking hook (93) is arranged on a side of the extension rod (92) away from the rotating shaft (91).
3. A locking device for preventing accidental entry into a live compartment according to claim 2, characterized in that: The telescopic hook (8) comprises a fixing rod (81), the fixing rod (81) is fixedly connected to the inner wall of the mounting groove (4), the fixing rod (81) is inserted into the interior of the spiral coil (7), a sliding sleeve (82) is provided on the outer surface of the fixing rod (81), and a fixing hook (83) is provided at one end of the sliding sleeve (82).
4. A locking device for preventing accidental entry into a live compartment according to claim 3, characterized in that: An adsorption plate (94) is provided at a position of the extension rod (92) corresponding to the electromagnet (5).
5. A locking device for preventing accidental entry into a live compartment according to claim 4, characterized in that: The energized coil (6) is interconnected with the internal power supply of the energized compartment.
6. A locking device for preventing accidental entry into a live compartment according to claim 5, characterized in that: A groove (11) matching with the locking hook (93) is arranged inside the locking pin groove (10), and both sides of the locking hook (93) are arranged in an arc shape.