Lockable protection device for isolating power supply

Abstract

The utility model discloses a lockable protection device for isolating a power supply, which comprises a box body, an isolating switch, an internal control mechanism, an external adjusting handle and a locking piece, and is characterized in that the box body is fixed on the surface of a wall body through a mounting hanging piece; a mounting cavity is formed in the surface of the box body, an isolation plate is fixedly connected to the inner wall of the mounting cavity, and a box door is fixedly hinged to an outer port of the mounting cavity; the isolating switch is fixedly connected to the surface of the isolating plate; the internal control mechanism is arranged on the surface of the isolation plate and located outside the isolation switch, and one end of the internal control mechanism is connected with one end of the isolation switch; the external adjusting handle is arranged on the outer surface of the box body, and one end of the external adjusting handle penetrates into the box body and is connected with one end of the internal control mechanism; the locking piece is arranged on the outer surface of the box body; and one end of the external adjusting handle is screwed and fixed with one end of the locking piece. The device can directly control the opening and closing of the isolation switch outside the box body, thereby avoiding the tedious step of opening the cabinet door to enter the internal operation, and greatly improving the operation efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, and in particular to a lockable protection device for isolating a power supply. Background Art

[0002] In electrical equipment and energy systems, power isolation is the core link to ensure operational safety, prevent accidental electric shock, and smoothly carry out maintenance work. With the in-depth development of industrial automation, the importance of power isolation technology has become increasingly prominent, and higher requirements have been placed on the safety, reliability, and convenience of isolation technology.

[0003] The traditional power isolation method is mainly achieved through an isolating switch. However, this isolating switch is usually installed inside the cabinet. When operating, it is necessary to open the cabinet door and then enter the cabinet to operate the isolating switch. This operation method is not only inefficient, but also has obvious safety hazards. During maintenance or overhaul, since the cabinet door can be opened by any worker and there is no corresponding authority management, it is easy to make a wrong operation, resulting in accidental connection of the circuit, thus causing a safety accident. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the utility model is to propose a lockable protection device for isolating power supply, which can directly control the opening and closing of the isolating switch outside the box, thereby avoiding the cumbersome steps of opening the cabinet door to enter the internal operation, greatly improving the operation efficiency. At the same time, the device is also equipped with a lock function, which effectively prevents unauthorized workers from opening the box at will, ensures the safe isolation of the power supply during maintenance or overhaul, and fundamentally eliminates the accidental connection of the circuit and the occurrence of safety accidents caused by misoperation.

[0006] To achieve the above-mentioned purpose, the utility model proposes a lockable protection device for isolating a power supply, comprising a box body, an isolating switch, an internal control mechanism, an external adjustment handle and a lock, wherein the box body is fixed to the wall surface by installing a hanger; an installation cavity is opened on the surface of the box body, and an isolation plate is fixedly connected to the inner wall of the installation cavity, and a box door is hingedly fixed at the outer port of the installation cavity; the isolating switch is fixedly connected to the surface of the isolation plate; the internal control mechanism is arranged on the surface of the isolation plate and is located on the outside of the isolating switch, and one end of the internal control mechanism is connected to one end of the isolating switch; the external adjustment handle is arranged on the outer surface of the box body, and one end of the external adjustment handle passes through the interior of the box body and is connected to one end of the internal control mechanism; the lock is arranged on the outer surface of the box body and is located on one side of the external adjustment handle, and one end of the external adjustment handle is screwed and fixed to one end of the lock.

[0007] The utility model is a lockable protection device for isolating power supply, which can directly control the opening and closing of the isolating switch outside the box, thereby avoiding the cumbersome steps of opening the cabinet door to enter the internal operation, greatly improving the operation efficiency. At the same time, the device is also equipped with a locking function, which effectively prevents unauthorized workers from opening the box at will, ensures the safe isolation of the power supply during maintenance or overhaul, and fundamentally eliminates the accidental connection of the circuit and the occurrence of safety accidents caused by misoperation.

[0008] In addition, the lockable protection device for isolating a power supply proposed in the application may also have the following additional technical features:

[0009] Specifically, the inner wall of the box is provided with PE terminals and wiring terminals, and the outer surface of the box is provided with buttons at positions corresponding to the wiring terminals.

[0010] Specifically, the internal control mechanism includes a first mounting base, a threaded screw, a first bevel gear, a lower lever, an upper lever, a second mounting base, a transmission rod, a second bevel gear and a transmission pinion, wherein the first mounting base is symmetrically arranged on the surface of the isolation plate and is located on the outside of the isolation switch; the threaded screw is rotatably connected to the inner wall of the first mounting base; one end of the threaded screw passes through the bottom of the first mounting base and is fixedly connected to the first bevel gear; the lower lever and the upper lever are respectively threadedly connected to the outer surfaces of the two groups of threaded screws and are arranged up and down, and the lower lever and the upper lever are respectively located on the top side and the bottom side of the switch in the isolation switch; the second mounting base is symmetrically arranged on the surface of the isolation plate and is located on the bottom side of the first bevel gear; the transmission rod is rotatably connected to the inner wall of the second mounting base; the second bevel gear is symmetrically arranged on the surface of the transmission rod and meshes with the first bevel gear; the transmission pinion is fixedly connected to the surface of one end of the transmission rod and meshes with one end of the external adjustment handle.

[0011] Specifically, the external adjustment handle includes an axle seat, a turning handle, a threaded hole and a driving gear, wherein the axle seat is rotatably connected to the outer surface of the box body; the turning handle is rotatably connected to the inner wall of the axle seat; one end of the turning handle passes through the interior of the box body and is fixedly connected to the driving gear, and the driving gear is located on one side of the transmission pinion and is meshed with each other; the threaded hole is opened on the surface of one end of the turning handle and is connected to one end of the locking member.

[0012] Specifically, the locking device includes a threaded column, a screw and a special-shaped hole groove, wherein the threaded column is fixedly connected to the outer surface of the box body and is located on one side of the shaft seat; the screw is threadedly connected to the inner wall of the threaded column; the special-shaped hole groove is opened on the surface of the screw; one end of the screw passes through the outside of the threaded column and is threadedly connected to the inner wall of the threaded hole.

[0013] Specifically, it also includes a key that is compatible with the outer dimensions of the special-shaped hole.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic structural diagram of a lockable protection device for isolating a power supply according to an embodiment of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of an internal control mechanism in a lockable protection device for isolating a power supply according to an embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of an external adjustment handle in a lockable protection device for isolating a power supply according to an embodiment of the utility model;

[0019] Figure 4 The present invention is a schematic diagram of a lock structure in a lockable protection device for isolating a power supply according to an embodiment of the present invention.

[0020] As shown in the figure:

[0021] 1. Box; 8. Isolating switch; 9. Internal control mechanism; 10. External adjustment handle; 11. Lock;

[0022] 2. Install the pendant; 3. Install the cavity; 4. Isolation board; 5. Box door;

[0023] 6. PE terminal; 7. Wiring terminal; 12. Button;

[0024] 91. first mounting base; 92. threaded screw; 93. first bevel gear; 94. lower lever; 95. upper lever; 96. second mounting base; 97. transmission rod; 98. second bevel gear; 99. transmission pinion;

[0025] 101, shaft seat; 102, turning handle; 103, threaded hole; 104, driving gear;

[0026] 111. Threaded column; 112. Screw; 113. Special-shaped hole groove. DETAILED DESCRIPTION

[0027] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0028] A lockable protection device for isolating a power supply according to an embodiment of the utility model will be described below in conjunction with the accompanying drawings.

[0029] like Figure 1 - Figure 4 As shown, a lockable protection device for isolating a power supply according to an embodiment of the utility model may include a box body 1, an isolating switch 8, an internal control mechanism 9, an external adjustment handle 10 and a lock 11.

[0030] Among them, the box body 1 is fixed to the wall surface by installing a hanger 2, an installation cavity 3 is opened on the surface of the box body 1, and an isolation plate 4 is fixedly connected to the inner wall of the installation cavity 3, a box door 5 is hingedly fixed at the outer port of the installation cavity 3, an isolating switch 8 is fixedly connected to the surface of the isolation plate 4, an internal control mechanism 9 is arranged on the surface of the isolation plate 4 and is located on the outside of the isolating switch 8, one end of the internal control mechanism 9 is connected to one end of the isolating switch 8, an external adjustment handle 10 is arranged on the outer surface of the box body 1, one end of the external adjustment handle 10 passes through the interior of the box body 1 and is connected to one end of the internal control mechanism 9, a lock 11 is arranged on the outer surface of the box body 1 and is located on one side of the external adjustment handle 10, and one end of the external adjustment handle 10 is screwed and fixed to one end of the lock 11.

[0031] Specifically, when the isolating switch 8 needs to be closed, the external adjustment handle 10 is turned toward the side of the lock 11. The rotation of the external adjustment handle 10 synchronously drives the internal control mechanism 9 to operate. The operation of the internal control mechanism 9 synchronously pulls down the switch in the isolating switch 8 to achieve closing. To open it, reset the external adjustment handle 10. The device is also provided with a lock 11. After the isolating switch 8 is closed, the lock 11 is fixed to one end of the external adjustment handle 10 to fix the state of the isolating switch 8. The lock 11 requires a specific key to open. The specific key is given to people with specific authority to prevent workers from operating it incorrectly.

[0032] The device can directly control the opening and closing of the isolating switch 8 outside the box 1, thereby avoiding the cumbersome steps of opening the box door 5 to enter the internal operation, greatly improving the operating efficiency. At the same time, the device is also equipped with a lock 11 function, which effectively prevents unauthorized workers from opening the box 1 at will, ensures the safe isolation of the power supply during maintenance or overhaul, and fundamentally eliminates the accidental connection of the circuit and the occurrence of safety accidents caused by misoperation.

[0033] In one embodiment of the present invention, Figure 1 As shown, the inner wall of the box body 1 is respectively provided with a PE terminal 6 and a terminal 7, and the outer surface of the box body 1 is provided with a button 12 at a position corresponding to the position of the terminal 7.

[0034] It should be noted that the PE terminal 6, the terminal block 7 and the button 12 are all prior arts, and their working principles and connection methods are not described in detail here.

[0035] Specifically, the necessary components of the box body 1 are further arranged.

[0036] In one embodiment of the present invention, Figure 2 As shown, the internal control mechanism 9 may include a first mounting base 91 , a threaded screw 92 , a first bevel gear 93 , a lower lever 94 , an upper lever 95 , a second mounting base 96 , a transmission rod 97 , a second bevel gear 98 and a transmission pinion 99 .

[0037] Among them, the first mounting base 91 is symmetrically arranged on the surface of the isolation plate 4 and is located on the outside of the isolating switch 8, the threaded screw 92 is rotatably connected to the inner wall of the first mounting base 91, one end of the threaded screw 92 passes through the bottom of the first mounting base 91 and is fixedly connected to the first bevel gear 93, the lower lever 94 and the upper lever 95 are respectively threadedly connected to the outer surfaces of the two groups of threaded screws 92, and are arranged up and down, the lower lever 94 and the upper lever 95 are respectively located on the top side and the bottom side of the switch in the isolating switch 8, the second mounting base 96 is symmetrically arranged on the surface of the isolation plate 4 and is located on the bottom side of the first bevel gear 93, the transmission rod 97 is rotatably connected to the inner wall of the second mounting base 96, the second bevel gear 98 is symmetrically arranged on the surface of the transmission rod 97, and is meshed with the first bevel gear 93, and the transmission pinion 99 is fixedly connected to the surface of one end of the transmission rod 97, and is meshed with one end of the external adjustment handle 10.

[0038] Specifically, the rotation of the external adjustment handle 10 synchronously drives the transmission pinion 99 to rotate, the rotation of the transmission pinion 99 synchronously drives the transmission rod 97 and the second bevel gear 98 to rotate, the rotation of the second bevel gear 98 synchronously drives the first bevel gear 93 and the threaded screw 92 to rotate, the rotation of the threaded screw 92 synchronously drives the lower lever 94 and the upper lever 95 to move up and down, when the lower lever 94 and the upper lever 95 descend, the lower lever 94 descends and synchronously shifts the switch in the isolating switch 8 down to close it, and when the lower lever 94 and the upper lever 95 rise, the upper lever 95 rises and synchronously shifts the switch in the isolating switch 8 up to open it.

[0039] In one embodiment of the present invention, Figure 3 As shown, the external adjustment handle 10 may include a shaft seat 101 , a turning handle 102 , a threaded hole 103 and a driving gear 104 .

[0040] Among them, the shaft seat 101 is rotatably connected to the outer surface of the box body 1, and the handle 102 is rotatably connected to the inner wall of the shaft seat 101. One end of the handle 102 penetrates into the interior of the box body 1 and is fixedly connected to a driving gear 104. The driving gear 104 is located on one side of the transmission pinion 99 and is meshed with each other. A threaded hole 103 is opened on the surface of one end of the handle 102 and is connected to one end of the lock 11.

[0041] It should be noted that the threaded hole 103 described in this embodiment is compatible with the outer dimensions of the screw rod 112 .

[0042] Specifically, the handle 102 is rotated toward the side of the lock 11, and the rotation of the handle 102 synchronously drives the threaded hole 103 to move. The rotation of the handle 102 also synchronously drives the driving gear 104 to rotate. The driving gear 104 rotates synchronously and drives the transmission pinion 99 to rotate, and the switch in the isolation switch 8 is closed. Then, the threaded hole 103 is connected to the lock 11 to achieve locking.

[0043] In one embodiment of the present invention, Figure 4 As shown, the locking element 11 may include a threaded column 111 , a screw rod 112 and a special-shaped hole 113 .

[0044] Among them, the threaded column 111 is fixedly connected to the outer surface of the box body 1 and is located on one side of the shaft seat 101. The screw 112 is threadedly connected to the inner wall of the threaded column 111. The special-shaped hole groove 113 is opened on the surface of the screw 112. One end of the screw 112 passes through the outside of the threaded column 111 and is threadedly connected to the inner wall of the threaded hole 103.

[0045] It should be noted that the special-shaped hole 113 described in this embodiment is an uncommon hole, or it can be understood as a hole that cannot be driven by ordinary objects to rotate the screw 112.

[0046] Specifically, a special key (not shown in the figure) is inserted into the special-shaped hole groove 113, and then the key is rotated. The rotation of the key drives one end of the screw rod 112 to enter the threaded hole 103 and be threadedly connected with the inner wall of the threaded hole 103. The screw is fixed with the threaded hole 103 to achieve locking.

[0047] In one embodiment of the present invention, Figure 4 As shown, it also includes a key (not shown in the figure) that is compatible with the outer dimensions of the special-shaped hole groove 113.

[0048] It should be noted that the key described in this embodiment also corresponds to identity information, and only a person with a specific identity can possess the key, which further limits the operating authority.

[0049] In summary, the lockable protection device for isolating power supply in the embodiment of the utility model can directly control the opening and closing of the isolating switch 8 outside the box 1, thereby avoiding the cumbersome steps of opening the box door 5 to enter the internal operation, greatly improving the operation efficiency. At the same time, the device is also equipped with a lock 11 function, which effectively prevents unauthorized workers from opening the box 1 at will, ensures the safe isolation of the power supply during maintenance or overhaul, and fundamentally eliminates the accidental connection of the circuit and the occurrence of safety accidents caused by misoperation.

[0050] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0052] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A lockable protective device for isolating a power supply, characterized in that: It comprises a box body (1), an isolating switch (8), an internal control mechanism (9), an external adjustment handle (10) and a lock (11), wherein: The box (1) is fixed on the wall surface by means of a mounting hanger (2); The surface of the box body (1) is provided with an installation cavity (3), and an isolation plate (4) is fixedly connected to the inner wall of the installation cavity (3), and a box door (5) is hingedly fixed at the outer end of the installation cavity (3); The isolating switch (8) is fixedly connected to the surface of the isolating plate (4); The internal control mechanism (9) is arranged on the surface of the isolation plate (4) and is located outside the isolation switch (8); one end of the internal control mechanism (9) is connected to one end of the isolation switch (8); The external adjustment handle (10) is arranged on the outer surface of the box body (1), and one end of the external adjustment handle (10) penetrates into the interior of the box body (1) and is connected to one end of the internal control mechanism (9); The locking element (11) is arranged on the outer surface of the box body (1) and is located on one side of the external adjustment handle (10); one end of the external adjustment handle (10) is screwed and fixed to one end of the locking element (11).

2. The lockable protection device for isolating a power supply according to claim 1, characterized in that: The inner wall of the box body (1) is respectively provided with a PE terminal post (6) and a terminal block (7), and the outer surface of the box body (1) is provided with a button (12) at a position corresponding to the position of the terminal block (7).

3. The lockable protection device for isolating a power supply according to claim 1, characterized in that: The internal control mechanism (9) comprises a first mounting base (91), a threaded screw (92), a first bevel gear (93), a lower lever (94), an upper lever (95), a second mounting base (96), a transmission rod (97), a second bevel gear (98) and a transmission pinion (99), wherein: The first mounting base (91) is symmetrically arranged on the surface of the isolation plate (4) and is located outside the isolation switch (8); The threaded screw (92) is rotatably connected to the inner wall of the first mounting base (91); One end of the threaded screw (92) passes through the bottom of the first mounting base (91) and is fixedly connected to the first bevel gear (93); The lower lever (94) and the upper lever (95) are respectively threadedly connected to the outer surfaces of the two groups of threaded screw rods (92) and are arranged up and down. The lower lever (94) and the upper lever (95) are respectively located on the top side and the bottom side of the switch in the isolating switch (8); The second mounting base (96) is symmetrically arranged on the surface of the isolation plate (4) and is located on one side of the bottom of the first bevel gear (93); The transmission rod (97) is rotatably connected to the inner wall of the second mounting base (96); The second bevel gear (98) is symmetrically arranged on the surface of the transmission rod (97) and meshes with the first bevel gear (93); The transmission pinion (99) is fixedly connected to the surface of one end of the transmission rod (97) and meshingly connected with one end of the external adjustment handle (10).

4. The lockable protection device for isolating a power supply according to claim 3, characterized in that: The external adjustment handle (10) comprises a shaft seat (101), a rotating handle (102), a threaded hole (103) and a driving gear (104), wherein: The shaft seat (101) is rotatably connected to the outer surface of the box body (1); The rotating handle (102) is rotatably connected to the inner wall of the shaft seat (101); One end of the rotating handle (102) penetrates into the box body (1) and is fixedly connected to the driving gear (104); the driving gear (104) is located on one side of the transmission pinion (99) and meshes with each other; The threaded hole (103) is formed on the surface of one end of the rotating handle (102) and is connected to one end of the locking element (11).

5. The lockable protection device for isolating a power supply according to claim 4, characterized in that: The locking element (11) comprises a threaded column (111), a screw rod (112) and a special-shaped hole groove (113), wherein: The threaded column (111) is fixedly connected to the outer surface of the box body (1) and is located on one side of the shaft seat (101); The screw rod (112) is threadedly connected to the inner wall of the threaded column (111); The special-shaped hole groove (113) is provided on the surface of the screw rod (112); One end of the screw rod (112) passes through the outside of the threaded column (111) and is threadedly connected to the inner wall of the threaded hole (103).

6. The lockable protection device for isolating a power supply according to claim 5, characterized in that: Also included is a key that matches the outer dimensions of the special-shaped hole (113).

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