A high and low voltage switch cabinet with an anti-touch security structure

Abstract

The present invention belongs to the field of switch cabinets, and particularly relates to a high and low voltage switch cabinet with an anti-touch and anti-security structure, including a cabinet body. The front part of the cabinet body is an upper cabinet, a middle cabinet, and a lower cabinet; the guiding mechanism includes brackets symmetrically arranged in the middle cabinet. A screw rod is installed in the middle of the two brackets. Guide rods connecting the two brackets are symmetrically arranged on both sides of the screw rod. A hollow threaded locking platform is arranged at the position where the screw rod penetrates the front end of the bracket. A sliding seat is screwed on the outer wall of the screw rod. The sliding seat slides back and forth along the two guide rods, and a placement plate is installed at the top; when the vacuum circuit breaker is taken out of the high and low voltage switch cabinet for maintenance, when the sliders at both ends of the vacuum circuit breaker are far away from the pressure sensors at the rear section of the guide rail, the orientation mechanism works, which can drive the connected first link mechanism and second link mechanism to reverse and bend back to their original positions, and reset the upper and lower shielding plates to their initial positions to shield the busbar interface and the ground wire interface, so as to provide anti-electric shock protection.

Description

Technical Field

[0001] The present invention relates to the field of switch cabinets, and particularly to a high and low voltage switch cabinet with an anti-touch and anti-security structure. Background Art

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

[0003] The prior art has the following problems:

[0004] When the vacuum circuit breaker in the high and low voltage switch cabinet is taken out of the cabinet for maintenance, the busbar interface and the grounding interface for connection are exposed. This part is prone to electric shock and cause physical injury to the staff. Conventionally, a partition is set in front of the interface, but the step of manually placing the baffle is cumbersome, and some staff members are prone to forget to place the baffle due to fatigue, resulting in an increased risk of electric shock and greater potential safety hazards. Summary of the Invention

[0005] (I) Object of the Invention

[0006] To solve the technical problems in the background art, the present invention provides a high and low voltage switch cabinet with an anti-touch and anti-security structure, which has the characteristics of automatic lifting of the baffle and insulation separation of each interface before and after maintenance without manual placement of the baffle.

[0007] (II) Technical Solution

[0008] To solve the above technical problems, the present invention provides a high and low voltage switch cabinet with an anti-touch and anti-security structure, including a cabinet body, the front part of the cabinet body is an upper cabinet, a middle cabinet and a lower cabinet;

[0009] The guiding mechanism includes brackets symmetrically arranged in the middle cabinet. A screw rod is installed in the middle of the two brackets. Guide rods connecting the two brackets are symmetrically arranged on both sides of the screw rod. A hollow threaded locking platform is arranged at the position where the screw rod penetrates the front end of the bracket. A sliding seat is screwed on the outer wall of the screw rod. The sliding seat slides back and forth along the two guide rods, and a placement plate is installed on the top. Guide rails with chutes are symmetrically installed at the corners of the middle cabinet;

[0010] A partition plate with a notch is installed in the inner cavity of the cabinet body, and the two notches respectively correspond to the busbar interface and the ground wire interface;

[0011] The shielding mechanism includes columns symmetrically arranged on the partition board. A column sleeve that can slide up and down is sleeved on the outer wall of the column. A shielding board corresponding to the notch of the partition board is installed between two adjacent column sleeves.

[0012] The alignment mechanism includes an alignment gearbox arranged in the inner cavity of the middle cabinet. A driving motor is arranged on the alignment gearbox. The output end of the driving motor is installed with a main shaft penetrating into the inner cavity of the alignment gearbox. A gear set is sleeved on the outer wall of the main shaft. Two gears in the gear set are connected at the centers with a first rotating shaft and a second rotating shaft penetrating through both ends of the alignment gearbox. The first rotating shaft and the second rotating shaft rotate in opposite directions.

[0013] The first link mechanism includes a first alignment rod sleeved on the outer wall of the first rotating shaft. A protruding first link shaft is installed at the distal end of the first alignment rod. A first link is sleeved on the outer wall of the first link shaft. The distal end of the first link is connected in the shaft hole to a first column sleeve shaft installed on the lower shielding board.

[0014] The second link mechanism includes a second alignment frame sleeved on the outer wall of the first rotating shaft. A protruding second link shaft is installed at the distal end of the second alignment frame. A second link is sleeved on the outer wall of the second link shaft. The distal end of the second link is connected in the shaft hole to a second column sleeve shaft installed on the upper shielding board.

[0015] Preferably, a vacuum circuit breaker is placed on the top of the placement board. Sliders that slide along the slots of the guide rail are installed at both ends of the vacuum circuit breaker.

[0016] Preferably, a pressure sensor is built in the guide rail, and the pressure sensor is signal-connected to the driving motor.

[0017] Preferably, a screw key connecting the screw is inserted into the internal thread locking platform, and the screw key rotates synchronously with the screw.

[0018] Preferably, the busbar interface is connected to the busbar end seat, the ground wire interface is connected to the grounding end seat, and the interfaces on the back of the vacuum circuit breaker are respectively inserted into the busbar interface and the ground wire interface.

[0019] Preferably, the gear set includes a main bevel gear sleeved on the outer wall of the main shaft. The teeth of the main bevel gear mesh with two auxiliary main bevel gears. The two auxiliary bevel gears have opposite transmission directions and are respectively connected to the first rotating shaft and the second rotating shaft at the middle parts.

[0020] Preferably, the first alignment rod, the first link, and the lower column sleeve rotate in segments through the first rotating shaft, the first link shaft, and the first column sleeve shaft.

[0021] Preferably, the lower baffle connected to the first column sleeve shaft slides downward along with the bending of the first steering rod and the first connecting rod.

[0022] Preferably, the second steering frame, the second connecting rod, and the upper second connecting rod shaft rotate in segments through the second rotating shaft, the second connecting rod shaft, and the second column sleeve shaft.

[0023] Preferably, the upper baffle connected to the second column sleeve shaft slides upward along with the bending of the second steering frame and the second connecting rod.

[0024] The above technical solutions of the present invention have the following beneficial technical effects:

[0025] 1. When removing the vacuum circuit breaker from the high-voltage and low-voltage switchgear for maintenance, when the sliders at both ends of the vacuum circuit breaker are far away from the pressure sensors at the rear section of the guide rail, the steering mechanism works, which can drive the connected first connecting rod mechanism and second connecting rod mechanism to bend and reset reversely, and reset the upper and lower baffles to the initial position to shield the busbar interface and the ground wire interface, providing anti-electric shock protection.

[0026] 2. When installing the vacuum circuit breaker, the steering mechanism can automatically work to drive the connected first connecting rod mechanism and second connecting rod mechanism to bend, and slide the upper and lower baffles along the column to expose the busbar interface and the ground wire interface, assisting in the rapid installation of the vacuum circuit breaker.

[0027] 3. The vacuum circuit breaker is provided with a guiding mechanism for auxiliary installation, and it can be connected to the busbar interface and the ground wire interface of the vacuum circuit breaker and the placement seat without manual pushing, with high installation stability and low electric shock risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic structural diagram of the present invention;

[0029] Figure 2 is a schematic structural diagram of the guiding mechanism of the present invention;

[0030] Figure 3 is a schematic structural diagram of the shielding mechanism of the present invention;

[0031] Figure 4 is a top view schematic diagram of the partition board of the present invention;

[0032] Figure 5 is a schematic structural diagram of the steering mechanism of the present invention;

[0033] Figure 6 is a schematic structural diagram of the first connecting rod mechanism and the second connecting rod mechanism of the present invention.

[0034] Reference Signs:

[0035] 1. Cabinet; 11. Upper cabinet; 12. Middle cabinet; 13. Lower cabinet; 21. Bracket; 22. Screw rod; 23. Guide rod; 24. Threaded locking platform; 25. Slide seat; 26. Placing plate; 27. Guide rail; 3. Partition board; 31. Busbar interface; 32. Ground wire interface; 41. Column; 42. Column sleeve; 43. Baffle plate; 51. Direction adjustment gearbox; 52. Driving motor; 53. Main shaft; 54. Gear set; 55. First rotating shaft; 56. Second rotating shaft; 61. First direction adjustment rod; 62. First connecting rod shaft; 63. First connecting rod; 64. First column sleeve shaft; 71. Second direction adjustment frame; 72. Second connecting rod shaft; 73. Second connecting rod; 74. Second column sleeve shaft. Detailed implementation manner

[0036] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0037] As Figure 1-3 shown, a high and low voltage switch cabinet with an anti-touch and anti-security structure proposed by the present invention includes a cabinet body 1, and the front part of the cabinet body 1 is an upper cabinet 11, a middle cabinet 12 and a lower cabinet 13;

[0038] The guiding mechanism includes brackets 21 symmetrically arranged in the middle cabinet 12. A screw rod 22 is installed in the middle of the two brackets 21. Guide rods 23 connecting the two brackets 21 are symmetrically arranged on both sides of the screw rod 22. A hollow threaded locking platform 24 is arranged at the position where the screw rod 22 penetrates the front end of the bracket 21. A slide seat 25 is screwed on the outer wall of the screw rod 22. The slide seat 25 slides back and forth along the two guide rods 23, and a placing plate 26 is installed on the top. Guide rails 27 with chutes are symmetrically installed at the corners of the middle cabinet 12;

[0039] A partition board 3 with a notch is installed in the inner cavity of the cabinet body 1, and the two notches respectively correspond to the busbar interface 31 and the ground wire interface 32.

[0040] It should be noted that:

[0041] 1. The busbar interface 31 is connected to the busbar end seat for the main power supply of the switch cabinet, and the ground wire interface 32 is connected to the grounding end seat for the grounding protection of the switch cabinet. The interfaces on the back of the vacuum circuit breaker are respectively plugged into the busbar interface 31 and the ground wire interface 32

[0042] 2. A vacuum circuit breaker is placed on the top of the placement plate 26. Sliders that slide in grooves along the guide rail 27 are installed at both ends of the vacuum circuit breaker. The vacuum circuit breaker is pushed into the inner cavity of the middle cabinet 12 through a circuit breaker trolley, supported by the placement plate 26 in the middle, and the sliders at both ends are embedded in the guide rail 27 to assist the movement of the vacuum circuit breaker towards the interface position.

[0043] As an example of the connection between the vacuum circuit breaker and the busbar interface 31 and the ground wire interface 32: After placing the vacuum circuit breaker on the placement plate 26, insert the screw key into the threaded locking platform 24 to connect the screw 22. Drive the screw 22 to rotate synchronously by rotating the screw key. Under the action of the screw rotation, the sliding seat 25 slides along the guide rod 23, thereby driving the back of the vacuum circuit breaker to approach the busbar interface 31 and the ground wire interface 32. Continue to rotate the screw key until the protrusions on the back of the vacuum circuit breaker are inserted into the busbar interface 31 and the ground wire interface 32 for the installation of the vacuum circuit breaker.

[0044] Among them, a pressure sensor is built into the guide rail 27, and the pressure sensor is arranged at the rear section of the guide rail 27. When the vacuum circuit breaker moves to the rear end of the guide rail 27 along with the placement plate, the sliders at both ends thereof contact the pressure sensor, transmit the signal to the drive motor 52, and control the working of the alignment mechanism to move the shielding plate 43 to assist in the exposure of the busbar interface 31 and the ground wire interface 32.

[0045] As Figure 2-6 shown, the shielding mechanism includes columns 41 symmetrically arranged on the partition plate 3. A column sleeve 42 that can slide up and down is sleeved on the outer wall of the column 41, and a shielding plate 43 corresponding to the notch of the partition plate 3 is installed between two adjacent column sleeves 42;

[0046] The alignment mechanism includes an alignment gearbox 51 arranged in the inner cavity of the middle cabinet 12. A drive motor 52 is arranged on the alignment gearbox 51. The output end of the drive motor 52 is installed with a main shaft 53 that penetrates into the inner cavity of the alignment gearbox 51. A gear set 54 is sleeved on the outer wall of the main shaft 53. The centers of the two gears in the gear set 54 are connected with a first rotating shaft 55 and a second rotating shaft 56 that penetrate through both ends of the alignment gearbox 51, and the rotating directions of the first rotating shaft 55 and the second rotating shaft 56 are opposite;

[0047] The first link mechanism includes a first alignment rod 61 sleeved on the outer wall of the first rotating shaft 55. A protruding first link shaft 62 is installed at the distal end of the first alignment rod 61. A first link 63 is sleeved on the outer wall of the first link shaft 62, and a first column sleeve shaft 64 installed on the lower shielding plate 43 is connected in the distal end shaft hole of the first link 63;

[0048] The second link mechanism includes a second alignment frame 71 sleeved on the outer wall of the first rotating shaft 55. A protruding second link shaft 72 is installed at the distal end of the second alignment frame 71. A second link 73 is sleeved on the outer wall of the second link shaft 72. A second bush shaft 74 installed on the upper shielding plate 43 is connected in the distal end shaft hole of the second link 73.

[0049] Among them, the gear set 54 includes a main bevel gear sleeved on the outer wall of the main shaft 53. The driving motor 52 drives the main bevel gear connected to the main shaft 53 to rotate. The teeth of the main bevel gear mesh with two auxiliary main bevel gears. The transmission directions of the two auxiliary bevel gears are opposite, and the middle parts are respectively connected to the first rotating shaft 55 and the second rotating shaft 56, driving the first alignment rod 61 and the second alignment frame 71 connected to the first rotating shaft 55 and the second rotating shaft 56 to rotate in the opposite direction.

[0050] In this embodiment, after the driving motor 52 of the alignment mechanism receives the pressure signal when the vacuum circuit breaker enters the rear section of the guide rail 27, the driving motor 52 works, driving the first rotating shaft 55 and the second rotating shaft 56 in the alignment gearbox 51 to rotate relatively in the opposite direction. Among them, the first alignment rod 61, the first link 63 and the lower bush 42 rotate in sections through the first rotating shaft 55, the first link shaft 62 and the first bush shaft 64. The lower shielding plate 43 connected to the first bush shaft 64 slides downward along with the bending of the first alignment rod 61 and the first link 63.

[0051] The second alignment frame 71, the second link 73 and the upper second link shaft 72 rotate in sections through the second rotating shaft 56, the second link shaft 72 and the second bush shaft 74. The upper shielding plate 43 connected to the second bush shaft 74 slides upward along with the bending of the second alignment frame 71 and the second link 73.

[0052] The upper and lower shielding plates 43 are slid up and down on the column 41, exposing the busbar interfaces 31 and the ground wire interfaces 32 corresponding to the two notches of the partition plate 3, for installing the vacuum circuit breaker.

[0053] In another embodiment, when the vacuum circuit breaker is taken out of the high and low voltage switchgear for maintenance, when the sliders at both ends of the vacuum circuit breaker are far away from the pressure sensors in the rear section of the guide rail 27, the driving motor 52 no longer receives the pressure signal and starts to reverse. Under the action of the same reverse rotation of the first rotating shaft 55 and the second rotating shaft 56, the upper and lower shielding plates 43 are reset to the initial position to shield the busbar interfaces 31 and the ground wire interfaces 32, and the partition protection of the easily accessible parts can be carried out without manual operation to place the shielding plate.

[0054] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principles of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention shall be included within the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A high and low voltage switchgear with an anti-touch security structure, characterized in that, It includes a cabinet body (1), and the front part of the cabinet body (1) is an upper cabinet (11), a middle cabinet (12) and a lower cabinet (13); The guiding mechanism includes brackets (21) symmetrically arranged in the middle cabinet (12). A screw rod (22) is installed in the middle of the two brackets (21). Guide rods (23) connecting the two brackets (21) are symmetrically arranged on both sides of the screw rod (22). A hollow threaded locking platform (24) is arranged at the position where the screw rod (22) penetrates through the front end of the bracket (21). A sliding seat (25) is screwed on the outer wall of the screw rod (22). The sliding seat (25) slides back and forth along the two guide rods (23), and a placing plate (26) is installed on the top. Guide rails (27) with chutes are symmetrically installed at the corners of the middle cabinet (12); A partition board (3) with notches is installed in the inner cavity of the cabinet body (1), and the two notches respectively correspond to a busbar interface (31) and a ground wire interface (32); The shielding mechanism includes columns (41) symmetrically arranged on the partition board (3). A column sleeve (42) that can slide up and down is sleeved on the outer wall of the column (41). A shielding plate (43) corresponding to the notch of the partition board (3) is installed between two adjacent column sleeves (42); The direction adjustment mechanism includes a direction adjustment gearbox (51) arranged in the inner cavity of the middle cabinet (12). A driving motor (52) is arranged on the direction adjustment gearbox (51). The output end of the driving motor (52) is installed with a main shaft (53) penetrating into the inner cavity of the direction adjustment gearbox (51). A gear set (54) is sleeved on the outer wall of the main shaft (53). The centers of the two gears in the gear set (54) are connected with a first rotating shaft (55) and a second rotating shaft (56) penetrating through both ends of the direction adjustment gearbox (51), and the rotating directions of the first rotating shaft (55) and the second rotating shaft (56) are opposite; The first link mechanism includes a first direction adjustment rod (61) sleeved on the outer wall of the first rotating shaft (55). A protruding first link shaft (62) is installed at the distal end of the first direction adjustment rod (61). A first link (63) is sleeved on the outer wall of the first link shaft (62). The distal end of the first link (63) is connected with a first column sleeve shaft (64) installed on the lower shielding plate (43) in a shaft hole; The second link mechanism includes a second direction adjustment frame (71) sleeved on the outer wall of the first rotating shaft (55). A protruding second link shaft (72) is installed at the distal end of the second direction adjustment frame (71). A second link (73) is sleeved on the outer wall of the second link shaft (72). The distal end of the second link (73) is connected with a second column sleeve shaft (74) installed on the upper shielding plate (43) in a shaft hole; A vacuum circuit breaker is placed on the top of the placing plate (26), and sliders that slide along the slots of the guide rail (27) are installed at both ends of the vacuum circuit breaker; A pressure sensor is built in the guide rail (27), and the pressure sensor is signal-connected to the driving motor (52); A screw key connecting the screw rod (22) is inserted inside the threaded locking platform (24), and the screw key and the screw rod (22) rotate synchronously.

2. The high and low voltage switch cabinet with an anti-touch and anti-security structure according to claim 1, characterized in that, The busbar interface (31) is connected to the busbar end seat, and the ground wire interface (32) is connected to the grounding end seat. The interfaces on the back of the vacuum circuit breaker are respectively inserted into the busbar interface (31) and the ground wire interface (32).

3. The high and low voltage switch cabinet with an anti-touch and anti-security structure according to claim 1, characterized in that, The gear set (54) includes a main bevel gear sleeved on the outer wall of the main shaft (53). The teeth of the main bevel gear mesh with two auxiliary main bevel gears. The transmission directions of the two auxiliary bevel gears are opposite, and the middle parts are respectively connected to the first rotating shaft (55) and the second rotating shaft (56).

4. A high and low voltage switch cabinet with an anti-touch and anti-security structure according to claim 1, characterized in that, The first alignment rod (61), the first connecting rod (63), and the lower column sleeve (42) rotate in segments through the first rotating shaft (55), the first connecting rod shaft (62), and the first column sleeve shaft (64).

5. The high and low voltage switchgear with anti-touch security structure according to claim 4, characterized in that, The lower shielding plate (43) connected to the first column sleeve shaft (64) slides downward as the first alignment rod (61) and the first connecting rod (63) are bent.

6. The high and low voltage switch cabinet with an anti-touch and anti-theft structure according to claim 1, characterized in that, The second alignment frame (71), the second connecting rod (73), and the upper second connecting rod shaft (72) rotate in segments through the second rotating shaft (56), the second connecting rod shaft (72), and the second column sleeve shaft (74).

7. A high and low voltage switch cabinet with an anti-touch and anti-security structure according to claim 1, characterized in that, The upper shielding plate (43) connected to the second column sleeve shaft (74) slides upward as the second alignment frame (71) and the second connecting rod (73) are bent.

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