Mechanical locking device for low-voltage comprehensive distribution box
Set the sleeve, activity rod, connecting rod and locking rod on the rotor of the load isolated switch. Combine the screw and screw holes of the auxiliary locking mechanism to solve the problem of misunderstanding caused by the wind blew of the warning plate to ensure the load of the load, ensure the load The isolation switch is safe and reliable when locking.
Patent Information
- Application Number
- CN202422883123.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-11-26
AI Technical Summary
After the rotating handle of the existing load isolation switch is locked, the warning sign is easily blown off by the wind, causing the staff to accidentally push the locking plate back into the placement slot, thereby dangerously changing the load isolation switch from locked to start. state.
Design a mechanical atresia device for a low -voltage comprehensive power distribution box, including setting a sleeve, activity rod, connecting rod, and locking rod on the transition of the load isolated switch. In the hole, prevent it from being pushed back to the placement groove. In addition, the auxiliary locking mechanism further locks the turntable through the cooperation of the screw and threaded holes to ensure that it is not misplaced.
It effectively prevents the locking piece from being pushed back into the slot by mistake, ensures that the load isolation switch will not malfunction when in the locked state, and ensures the safety of workers.
Smart Images
Figure CN222394741U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of distribution boxes, in particular to a mechanical locking device for a low-voltage integrated distribution box. Background Art
[0002] Load isolation switch is an electrical device widely used in power systems. It is mainly used to cut off and connect circuits and can effectively isolate the load and power supply during operation. The internal structure of the load isolation switch is relatively simple, consisting of contacts, transmission mechanism, control circuit and shell. When the handle is turned or the electrical signal is sent, the contact will move and cut off the circuit. At this time, the load and power supply are isolated to achieve the purpose of cutting off and connecting the circuit.
[0003] At present, after the handle of the load isolating switch is turned to the locked state, the locking plate is pulled out, and then a warning sign is hung on the through hole of the locking plate. However, the warning sign is easily blown off by the wind, which may cause other personnel to mistakenly push the locking plate back into the placement slot, and then turn the handle to change the load isolating switch from the locked state to the started state, which is very dangerous for the staff who are repairing the distribution cabinet. Utility Model Content
[0004] The purpose of the utility model is to provide a mechanical locking device for a low-voltage integrated distribution box to solve the problems raised in the above-mentioned background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A mechanical locking device for a low-voltage integrated distribution box comprises a load isolating switch body arranged in the distribution box, a turning handle is arranged on the load isolating switch body, a placement groove for accommodating a locking plate is arranged in the turning handle, a sleeve is installed on the turning handle, the top of the sleeve has an opening, a movable rod is arranged in the opening, the bottom of the movable rod is connected to the bottom of the sleeve through a spring, a connecting rod is arranged on the top of the movable rod, and a locking rod capable of being inserted into a through hole in the locking plate is installed on the connecting rod.
[0007] As a further solution of the utility model: an auxiliary locking mechanism is also provided on the turning handle, and the auxiliary locking mechanism includes a placing cylinder installed on the turning handle, an internal thread is provided on the inner wall of the placing cylinder, and a screw is also provided inside the placing cylinder, and the screw is threadably matched with the internal thread; a square groove is provided at one end of the screw away from the load isolation switch body, and a square rod is detachably installed inside the square groove; a screw hole matching the screw is provided on the load isolation switch body.
[0008] As a further solution of the utility model: one end of the square rod extends outwardly to place the cylinder, and a disc is arranged on the end of the square rod extending outwardly from the placement cylinder.
[0009] As a further solution of the utility model: the rotating handle is also provided with a placement hole for storing the square rod.
[0010] As a further solution of the utility model: box covers are provided on both sides of the opening of the distribution box, and a support plate is provided on the top of one of the box covers, and a slide groove is provided at the bottom of the support plate, and a slider that always moves in the slide groove is provided in the slide groove, and a long strip block is movably provided at the bottom of the slider, and a groove is provided on the long strip block, and a reel is provided in the groove through a torsion spring, and an interception net is wound on the reel.
[0011] As a further solution of the utility model: a connecting rod is installed at one end of the intercepting net, a first hanging ring is installed on the inner wall of the bottom of the distribution box, and a first hook matching with the first hanging ring is provided on the connecting rod.
[0012] As a further solution of the utility model: a second hanging ring is further provided inside the distribution box, and a second hook matching with the second hanging ring is provided on the long block.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model arranges a sleeve at the top of the turning handle in the load isolating switch body, the top of the sleeve is open, and a movable rod is arranged in the sleeve. The bottom end of the movable rod is connected to the inner wall of the bottom end of the sleeve by a spring, a connecting rod is arranged at the top of the movable rod, and a locking rod is arranged at the front bottom end of the connecting rod. When the turning handle of the load isolating switch body is rotated to the disconnected state, the connecting rod and the locking rod are lifted upward, the locking plate is pulled out, the turning handle is locked, and then the connecting rod is gradually loosened to insert the locking rod into the through hole of the locking plate to prevent the locking plate from being pushed back into the placement groove. During this process, the distribution box can be repaired, and during the locking process, the turning handle is further locked by the auxiliary locking mechanism. Multiple locking can prevent the turning handle from being rotated by people and ensure the safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the structure of the load isolating switch body in the mechanical locking device for the low-voltage integrated distribution box.
[0015] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.
[0016] Figure 3 for Figure 1 A local enlarged schematic diagram of point B in the middle.
[0017] Figure 4 This is a structural schematic diagram of the sleeve and movable rod in the mechanical locking device for a low-voltage integrated distribution box.
[0018] Figure 5 This is a schematic diagram of the internal structure of the mechanical locking device for the low-voltage integrated distribution box.
[0019] In the figure: 10-load isolating switch body, 11-screw hole, 20-handle, 21-locking plate, 22-sleeve, 23-movable rod, 24-connecting rod, 25-locking rod, 30-auxiliary locking mechanism, 31-placing cylinder, 32-screw, 33-square rod, 34-disc, 35-placing hole, 40-distribution box, 41-box cover, 42-support plate, 43-long strip, 44-interception net, 45-connecting rod, 46-first hanging ring, 47-second hanging ring. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-Figure 5 In the embodiment of the utility model, a mechanical locking device for a low-voltage integrated distribution box includes a load isolating switch body 10 arranged in a distribution box 40, and a rotating handle 20 is arranged on the load isolating switch body 10, and a placement groove for accommodating a locking piece 21 is arranged in the rotating handle 20, and the locking piece 21 can be pulled out from the placement groove. In the prior art, when the rotating handle 20 is rotated to the locked state, the locking piece 21 is pulled out of the placement groove and a warning sign is hung to remind the staff. In the embodiment of the present application, a sleeve 22 is installed on the rotating handle 20, and the top of the sleeve 22 has an opening, and a movable rod 23 is arranged in the opening, and the bottom of the movable rod 23 is through The spring is connected to the bottom of the sleeve 22, and a connecting rod 24 is provided at the top of the movable rod 23. A locking rod 25 that can be inserted into the through hole in the locking plate 21 is installed on the connecting rod 24. After the locking plate 21 on the turning handle 20 is pulled out, the turning handle 20 is locked to avoid closing the switch, thereby ensuring the safety of the workers on the line. When the turning handle 20 is rotated to the disconnected state, the connecting rod 24 and the locking rod 25 are lifted upward, the locking plate 21 is pulled out, the turning handle 20 is locked, and then the connecting rod 24 is gradually loosened to allow the locking rod 25 to be inserted into the through hole of the locking plate 21 to prevent the locking plate 21 from being pushed back into the placement groove. During this process, the distribution box 40 can be repaired.
[0022] In order to prevent the locking piece 21 from being artificially returned to the placement groove, in the embodiment of the present application, an auxiliary locking mechanism 30 is also provided on the turning handle 20. After the locking piece 21 is pulled out, the auxiliary locking mechanism 30 locks the turning handle 20 again. The auxiliary locking mechanism 30 includes a placement tube 31 installed on the turning handle 20, and an internal thread is provided on the inner wall of the placement tube 31. A screw 32 is also provided inside the placement tube 31, and the screw 32 is threadably matched with the internal thread; a square groove is provided at one end of the screw 32 away from the load isolation switch body 10, and a square rod 33 is detachably installed inside the square groove; a screw hole 11 matching the screw 32 is provided on the load isolation switch body 10. When the turning handle 20 is rotated to the disconnected state, the square rod 33 is manually rotated to make the screw 32 rotate in the placement tube 31. The screw 32 rotates during the rotation. The staff member 32 is moved toward the screw hole 11 during the maintenance process until the end of the screw rod 32 enters the screw hole 11. At this time, the square rod 33 can be taken out of the square groove, and the staff member carries the square rod 33 to work in other places. At this time, without the action of the square rod 33, the turning handle 20 is locked by the thread cooperation of the screw rod 32 and the screw hole 11, preventing other personnel from turning the turning handle 20 to the closing state, further ensuring the safety of the staff on the line. After the maintenance is completed, the staff member inserts the square rod 33 into the square groove and rotates it in the opposite direction, driving the screw rod 32 to rotate in the opposite direction, and the screw 32 is removed from the screw hole 11, and the locking piece 21 is pushed back into the placement groove. The turning handle 20 can be rotated at this time. Through the existing locking piece 21 and the locking function of the screw 32 and the screw hole 11, multiple locking can prevent the turning handle 20 from being accidentally touched by other personnel, thereby ensuring the safety of personnel.
[0023] Furthermore, in the embodiment of the present application, one end of the square rod 33 extends outward from the placement tube 31. In order to facilitate the staff to control the rotation of the square rod 33, a disc 34 is provided at the end of the square rod 33 extending out of the placement tube 31. The rotation of the square rod 33 is controlled by the disc 34, and the square rod 33 can be rotated more conveniently, which is more convenient in use; in addition, a placement hole 35 is also provided on the rotating handle 20, and the square rod 33 can be inserted into the placement hole 35. After the screw rod 32 is threadedly engaged with the screw hole 11, the square rod 33 is taken out of the square groove and then placed in the placement hole 35. For equipment with a short maintenance distance, the square rod 33 is placed in the placement hole 35 to avoid loss, and there is no need to place the square rod 33 elsewhere, and the prompt function can also be achieved, that is, the square rod 33 is separated from the screw 32, and the rotating handle 20 cannot be rotated at this time.
[0024] See also Figure 5, both sides of the opening of the distribution box 40 are provided with box covers 41, and the top of one of the box covers 41 is provided with a support plate 42, and the bottom of the support plate 42 is provided with a slide groove, and a slider that always moves in the slide groove is provided in the slide groove, and a long strip block 43 is movably provided at the bottom of the slider, and a groove is provided on the long strip block 43, and a reel is provided in the groove through a torsion spring, and an interception net 44 is wound on the reel. When the load isolation switch body 10 is in a locked state, the staff opens the box door. Since the long strip block 43 is at the bottom of the movable slider, the long strip block 43 is folded at this time to make the long strip block 43 in a horizontal state, and then the interception net 44 on the reel is pulled out to protect the distribution box 40, prevent bags or other objects blown by the wind from entering the distribution box 40, and also prevent other larger animals, such as cats, from entering the distribution box 40, so as to protect the electrical components in the distribution box 40;
[0025] Furthermore, in the embodiment of the present application, a connecting rod 45 is installed at one end of the intercepting net 44, and a first hanging ring 46 is installed on the inner wall of the bottom of the distribution box 40. A first hook that cooperates with the first hanging ring 46 is provided on the connecting rod 45. When the intercepting net 44 is pulled out to the bottom of the distribution box 40, the first hook is hooked and matched with the first hanging ring 46 to keep the intercepting net 44 in an open state. After use, the first hook is removed from the first hanging ring 46, and the reel is reversed under the action of the torsion spring, thereby retracting the intercepting net 44. In addition, in the embodiment of the present application, a second hanging ring 47 is further provided inside the distribution box 40, and a second hook matching with the second hanging ring 47 is provided on the long block 43. When the long block 43 is in a horizontal state, the second hook is hooked and matched with the second hanging ring 47 to keep the long block 43 in a horizontal state. Through the action of the long block 43, in windy weather or when the box cover 41 is accidentally touched, the box cover 41 will not flip over at will, and the box cover 41 will not collide with the distribution box 40, thereby avoiding vibration of the distribution box 40.
[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A mechanical locking device for a low-voltage integrated distribution box, comprising a load isolating switch body (10) arranged in the distribution box (40), the load isolating switch body (10) being provided with a handle (20), the handle (20) being provided with a placement groove for accommodating a locking plate (21), characterized in that: A sleeve (22) is mounted on the turning handle (20), the top of the sleeve (22) has an opening, a movable rod (23) is arranged in the opening, the bottom of the movable rod (23) is connected to the bottom of the sleeve (22) via a spring, a connecting rod (24) is arranged on the top of the movable rod (23), and a locking rod (25) that can be inserted into a through hole in the locking plate (21) is mounted on the connecting rod (24).
2. The mechanical locking device for a low-voltage integrated distribution box according to claim 1 is characterized in that: The rotating handle (20) is also provided with an auxiliary locking mechanism (30), the auxiliary locking mechanism (30) comprising a placement tube (31) mounted on the rotating handle (20), the inner wall of the placement tube (31) being provided with an internal thread, a screw rod (32) being further provided inside the placement tube (31), the screw rod (32) being threadably matched with the internal thread; a square groove is provided at one end of the screw rod (32) away from the load isolating switch body (10), a square rod (33) being detachably mounted inside the square groove; and a screw hole (11) matching with the screw rod (32) is provided on the load isolating switch body (10).
3. The mechanical locking device for a low-voltage integrated distribution box according to claim 2 is characterized in that: One end of the square rod (33) extends outward from the placement tube (31), and a disc (34) is provided at the end of the square rod (33) extending out of the placement tube (31).
4. The mechanical locking device for a low-voltage integrated distribution box according to claim 3 is characterized in that: The rotating handle (20) is also provided with a placement hole (35) for accommodating the square rod (33).
5. The mechanical locking device for a low-voltage integrated distribution box according to claim 1 is characterized in that: Box covers (41) are provided on both sides of the opening of the distribution box (40), a support plate (42) is provided at the top of one of the box covers (41), a slide groove is provided at the bottom of the support plate (42), a slider that always moves in the slide groove is provided in the slide groove, a long strip (43) is movably provided at the bottom of the slider, a groove is provided on the long strip (43), a reel is provided in the groove via a torsion spring, and an interception net (44) is wound around the reel.
6. The mechanical locking device for a low-voltage integrated distribution box according to claim 5 is characterized in that: A connecting rod (45) is installed at one end of the intercepting net (44), a first hanging ring (46) is installed on the inner wall of the bottom of the distribution box (40), and a first hook matching with the first hanging ring (46) is provided on the connecting rod (45).
7. The mechanical locking device for a low-voltage integrated distribution box according to claim 6 is characterized in that: A second hanging ring (47) is also provided inside the distribution box (40), and a second hook matching with the second hanging ring (47) is provided on the long strip (43).