An interlocking device and interlocking switch cabinet with good safety performance

Abstract

The invention discloses an interlocking device with good safety performance, comprising an interlocking device main body and an interlocking control mechanism; the interlocking device main body comprises a bevel gear mounting seat, a first bevel gear and a second bevel gear mounted inside the bevel gear mounting seat, a first connecting shaft fixedly connected to the first bevel gear at one end, a second connecting shaft fixedly connected to the second bevel gear at one end, a connecting plate fixedly connected to the other end of the second connecting shaft at one side, a third connecting shaft fixedly connected to the other side of the connecting plate at one end, and an installation area connected to the other end of the third connecting shaft; an interlocking switch cabinet comprises a switch cabinet main body, a front door mounted on the front of the switch cabinet main body, a rear door mounted on the rear of the switch cabinet main body, an interlocking device main body connected to the front door handle and the rear door handle, and an interlocking control mechanism connected to the interlocking device main body; the interlocking device and the interlocking switch cabinet with good safety performance can effectively solve the problem of operators mistakenly entering a live interval.

Description

Technical Field

[0001] The invention belongs to the technical field of switch cabinets, and in particular relates to an interlocking device and an interlocking switch cabinet with good safety performance. Background Art

[0002] The main function of the switchgear is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. The components in the switchgear mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors and various protection devices. It is mainly suitable for various occasions such as power plants, substations, petrochemicals, metallurgy and steel rolling, light industry and textiles, factories and mines, residential areas, high-rise buildings, etc.

[0003] Electrical equipment can be moved between the test position and the working position. In order to prevent the operator from accidentally opening the switch cabinet door when the electrical equipment is in the working position, an interlocking mechanism is often used. The interlocking mechanism currently used has a complex structure and is not easy to install and maintain. By setting a display light to visually display the door closing status, unnecessary injuries caused by the door not being closed tightly are prevented. The interlocking device prevents the front and rear doors from being opened at the same time. Summary of the invention

[0004] The object of the present invention is to provide an interlocking device and an interlocking switch cabinet with good safety performance, so as to solve the problem that an operator mistakenly enters a live interval.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an interlocking device with good safety performance comprises an interlocking device body and an interlocking control mechanism; the interlocking device body comprises a bevel gear mounting seat, a first bevel gear and a second bevel gear installed inside the bevel gear mounting seat, a first connecting shaft fixedly connected to the first bevel gear at one end, a second connecting shaft fixedly connected to the second bevel gear at one end, a connecting plate fixedly connected to the other end of the second connecting shaft at one side, a third connecting shaft fixedly connected to the other side of the connecting plate at one end, and an installation area connected to the other end of the third connecting shaft.

[0006] The installation area is a rectangular tubular structure, the interior of the installation area is a hollow structure, and the side of the installation area connected to the third connecting shaft is provided with an opening.

[0007] The interlocking control mechanism is installed inside the installation area; the interlocking control mechanism includes a first fixed plate connected to the third connecting shaft on one side, a control wheel fixedly installed on the other side of the first fixed plate, a first control rack and a second control rack matching the control wheel, a pin fixedly connected to the first control rack, and a second fixed plate for fixing.

[0008] The first control rack includes a rack matched with the control wheel arranged at the lower end of the first control rack, a limit block arranged at the middle position, and a fixing area arranged above the limit block. The fixing area is provided with a plurality of latch installation holes. The latch is provided with a plurality of latch connection holes.

[0009] The latch connection hole is coaxially arranged with the latch installation hole, and the latch is fixed to the first control rack by screws.

[0010] The control wheel is in an "X" shape and is provided with a first control wheel mounting hole and a second control wheel mounting hole.

[0011] The second fixing plate is provided with a first fixing hole and a second fixing hole; the first fixing hole and the first mounting hole of the control wheel are coaxially arranged, and the second fixing hole and the second mounting hole are coaxially arranged.

[0012] The second control rack is a rack that matches the control wheel.

[0013] Preferably, the first bevel gear and the second bevel gear are installed vertically.

[0014] Preferably, the bottom of the installation area is closed, and the top of the installation area is open.

[0015] Preferably, the third connecting shaft passes through the side of the installation area through an opening and is vertically connected to the interlocking control mechanism.

[0016] Preferably, the second fixed plate is connected to the control wheel via screws, and the first control rack and the second control rack are clamped between the first fixed plate and the second fixed plate.

[0017] An interlocking switch cabinet comprises a switch cabinet body, a front door installed on the front of the switch cabinet body, a rear door installed on the rear of the switch cabinet body, a left side plate installed on the left side of the switch cabinet body, a right side plate installed on the right side of the switch cabinet body, a top plate installed on the top of the switch cabinet body, a bottom plate installed on the bottom of the switch cabinet body, a front door frame matching the front door, a rear door frame matching the rear door, a first hinge and a second hinge arranged at the connection between the front door and the front door frame, a third hinge and a fourth hinge arranged at the connection between the rear door and the rear door frame, metal contacts arranged on the front door, the front door frame, the rear door, and the inside of the rear door frame, a front door handle arranged on the front door, a first display light arranged above the front door handle, a rear door handle arranged on the front door, a second display light arranged above the front door handle, an interlocking device body connected to the front door handle and the rear door handle, and an interlocking control mechanism connected to the interlocking device body.

[0018] The metal contacts include a first contact and a second contact.

[0019] The interlock control mechanism is provided with a latch pin inside. The interlock device has two main bodies, which are respectively connected to the front door handle and the rear door handle, and the interlock control mechanism has two.

[0020] Preferably, the first hinge is installed at the upper right side of the front door, and the second hinge is installed at the lower right side of the front door; the third hinge is installed at the upper right side of the rear door, and the fourth hinge is installed at the lower right side of the rear door; the first hinge is consistent with the third hinge in height, and the second hinge is consistent with the fourth hinge in height; the front door handle is consistent with the first hinge in height, and the rear door handle is consistent with the fourth hinge in height.

[0021] Preferably, the second hinge and the third hinge are provided with latch holes matching with the latch.

[0022] Preferably, there are a plurality of first contacts; and there are a plurality of second contacts.

[0023] Preferably, a plurality of first contacts are installed inside the front door; a plurality of second contacts are installed in the front door frame at positions corresponding to the first contacts in the front door; a plurality of first contacts are installed inside the rear door; and a plurality of second contacts are installed in the rear door frame at positions corresponding to the first contacts in the rear door.

[0024] Preferably, the first display light and the second display light are connected to the inside of the metal contact through wires.

[0025] The technical effects and advantages of the present invention are as follows: the interlocking device and interlocking switch cabinet with good safety performance are reliable, the structure is relatively simple, the number of processed parts is relatively small, the assembly is easy, the operation is convenient, the maintenance is convenient, the material consumption is relatively small, and the cost is low. The display light is set to visually display the door closing status, thereby preventing unnecessary damage caused by the door not being closed tightly, and the interlocking device prevents the front and rear doors from being opened at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the top view of the switch cabinet;

[0027] Figure 2 This is a schematic diagram of the front door of the switch cabinet;

[0028] Figure 3 This is a schematic diagram of the back door of the switch cabinet;

[0029] Figure 4 This is the left view of the switch cabinet;

[0030] Figure 5 for Figure 4 The enlarged schematic diagram of part A in the middle;

[0031] Figure 6 It is a schematic diagram of the connection between the front door handle and the interlocking device;

[0032] Figure 7 is a schematic diagram of an interlocking device;

[0033] Figure 8 It is the connection diagram of the interlocking control mechanism;

[0034] Fig. 9 It is a schematic diagram of the interlocking control mechanism;

[0035] Fig.10 Schematic diagram of the first control rack and the second control rack.

[0036] In the figure: 100-switch cabinet body, 101-front door, 102-front door frame, 103-front door handle, 104-first display light, 105-first hinge, 106-second hinge, 107-rear door, 108-rear door frame, 109-rear door handle, 110-second display light, 111-third hinge, 112-fourth hinge, 113-left side plate, 114-right side plate, 200-metal contact, 201-first contact, 202-second contact, 300-interlocking device body, 301-bevel gear mounting seat, 302-first connecting shaft, 30 3-first bevel gear, 304-second bevel gear, 305-second connecting shaft, 306-connecting plate, 307-third connecting shaft, 308-installation area, 400-interlocking control mechanism, 401-first fixed plate, 402-control wheel, 403-first mounting hole of control wheel, 404-second mounting hole of control wheel, 405-second fixed plate, 406-first fixing hole, 407-second fixing hole, 408-first control rack, 409-limiting block, 410-latch mounting hole, 411-second control rack, 412-latch, 413-latch connecting hole. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] The present invention provides Figure 6-10An interlocking device with good safety performance shown in the figure includes an interlocking device body 300 and an interlocking control mechanism 400; the interlocking device body 300 includes a bevel gear mounting seat 301, a first bevel gear 303 and a second bevel gear 304 mounted inside the bevel gear mounting seat 301, a first connecting shaft 302 fixedly connected to the first bevel gear 303 at one end, a second connecting shaft 305 fixedly connected to the second bevel gear 304 at one end, a connecting plate 306 fixedly connected to the other end of the second connecting shaft 305 at one side, a third connecting shaft 307 fixedly connected to the other side of the connecting plate 306 at one end, and an installation area 308 connected to the other end of the third connecting shaft 307. The first bevel gear 303 and the second bevel gear 304 are installed vertically.

[0039] like Figure 6-7 As shown in the figure, the installation area 308 is a rectangular tubular structure, the interior of the installation area 308 is a hollow structure, the bottom of the installation area 308 is closed, and the top of the installation area 308 is open, which is used to place the interlocking control mechanism 400. The side of the installation area 308 connected to the third connecting shaft 307 is provided with an opening, and the third connecting shaft 307 passes through the side of the installation area 308 through the opening and is vertically connected to the interlocking control mechanism 400.

[0040] like Figure 7-10 As shown in the figure, the interlocking control mechanism 400 is installed inside the installation area 308; the interlocking control mechanism 400 includes a first fixed plate 401 connected to the third connecting shaft 307 on one side, a control wheel 402 fixedly installed on the other side of the first fixed plate 401, a first control rack 408 and a second control rack 411 matched with the control wheel 402, a pin 412 fixedly connected to the first control rack 408, and a second fixed plate 405 for fixing.

[0041] The first control rack 408 includes a rack arranged at the lower end of the first control rack 408 and matching the control wheel 402, a limit block 409 arranged at the middle position, and a fixing area arranged above the limit block 409. The fixing area is provided with a plurality of mounting holes 410 for latches 412. The latches 412 are provided with a plurality of latch connection holes 413.

[0042] The latch connection hole 413 is coaxially arranged with the mounting hole 410 of the latch 412, and the latch 412 is fixed to the first control rack 408 by screws.

[0043] like Figure 7-10 As shown in FIG. 4 , the control wheel 402 is in an “X” shape, and is provided with a first control wheel mounting hole 403 and a second control wheel mounting hole 404 .

[0044] The second fixing plate 405 is provided with a first fixing hole 406 and a second fixing hole 407 ; the first fixing hole 406 is coaxially arranged with the first mounting hole 403 of the control wheel, and the second fixing hole 407 is coaxially arranged with the second mounting hole 404 of the control wheel.

[0045] The second control rack 411 is a rack that matches the control wheel 402 .

[0046] like Figure 7-10 As shown in , the second fixed plate 405 is connected to the control wheel 402 by screws, and the first control rack 408 and the second control rack 411 are clamped between the first fixed plate 401 and the second fixed plate 405.

[0047] One end of the third connecting shaft 307 is connected to the connecting plate 306 , and the other end passes through the side of the installation area 308 and is connected to the first fixing plate 401 .

[0048] like Figure 1-5 An interlock switch cabinet shown in the figure comprises a switch cabinet body 100, a front door 101 installed at the front of the switch cabinet body 100, a rear door 107 installed at the rear of the switch cabinet body 100, a left side plate 113 installed at the left side of the switch cabinet body 100, a right side plate 114 installed at the right side of the switch cabinet body 100, a top plate installed at the top of the switch cabinet body 100, a bottom plate installed at the bottom of the switch cabinet body 100, a front door frame 102 matched with the front door 101, a rear door frame 108 matched with the rear door 107, and a first hinge 105 and a second hinge 106 arranged at the connection between the front door 101 and the front door frame 102 , a third hinge 111 and a fourth hinge 112 arranged at the connection between the rear door 107 and the rear door frame 108, a metal contact 200 arranged inside the front door 101, the front door frame 102, the rear door 107, and the rear door frame 108, a front door handle 103 arranged on the front door 101, a first display light 104 arranged above the front door handle 103, a rear door handle 109 arranged on the front door 101, a second display light 110 arranged above the front door handle 103, an interlocking device main body 300 connected to the front door handle 103 and the rear door handle 109, and an interlocking control mechanism 400 connected to the interlocking device main body 300.

[0049] The interlock control mechanism 400 is provided with a latch 412. There are two interlock device bodies 300, which are respectively connected to the front door handle 103 and the rear door handle 109, and there are two interlock control mechanisms 400.

[0050] like Figure 4-5 As shown in FIG. 1 , the metal contact 200 includes a first contact 201 and a second contact 202. There are a plurality of first contacts 201 and a plurality of second contacts 202.

[0051] like Figure 1-3 As shown in, the first hinge 105 is installed at the upper right side of the front door 101, and the second hinge 106 is installed at the lower right side of the front door 101; the third hinge 111 is installed at the upper right side of the rear door 107, and the fourth hinge 112 is installed at the lower right side of the rear door 107; the first hinge 105 is consistent in height with the third hinge 111, and the second hinge 106 is consistent in height with the fourth hinge 112; the front door handle 103 is consistent in height with the first hinge 105, and the rear door handle 109 is consistent in height with the fourth hinge 112.

[0052] The second hinge 106 and the third hinge 111 are provided with latch holes matching the latch 412 , and the latch 412 is inserted into the latch holes to lock the front and rear doors 107 .

[0053] A plurality of first contacts 201 are installed inside the front door 101; a plurality of second contacts 202 are installed in the front door frame 102 at positions corresponding to the first contacts 201 in the front door 101; a plurality of first contacts 201 are installed inside the rear door 107; a plurality of second contacts 202 are installed in the rear door frame 108 at positions corresponding to the first contacts 201 in the rear door 107.

[0054] The first display light 104 and the second display light 110 are connected to the inside of the metal contact 200 through wires.

[0055] Working principle: When in use, when the first contact 201 in the front door 101 is in contact with the second contact 202 in the front door frame 102, that is, when the front door 101 is closed, the first display light 104 is green; when the first contact 201 in the front door 101 is disconnected from the second contact 202 in the front door frame 102, that is, when the front door 101 is opened, the first display light 104 is red.

[0056] When the first contact 201 in the rear door 107 is in contact with the second contact 202 in the rear door frame 108, that is, the rear door 107 is closed, the second display light 110 is green, and when the first contact 201 in the rear door 107 is disconnected from the second contact 202 in the rear door frame 108, that is, the rear door 107 is opened, the second display light 110 is red. The first display light 104 and the second display light 110 can clearly show the current state of the door 101 to prevent the door from being not completely closed. When the front door 101 is opened, the front door handle 103 is turned, and the first connecting shaft 302 connected to the front door handle 103 rotates at the same time, driving the first bevel gear 303 to rotate, and the first bevel gear 303 drives the second bevel gear 304 to rotate, and at the same time drives the first connecting shaft 302, the second connecting shaft 305, and the third connecting shaft 307. The third connecting shaft 307 drives the first fixed disk 401 in the interlocking control mechanism 400 and the control wheel 402 fixed on the first fixed disk 401 to rotate, and the first control rack 408 and the second control rack 411 in the interlocking control mechanism 400 move outward as the control wheel 402 rotates, and the latch 412 passes through the latch in the third hinge 111. When the rear door 107 is opened, the rear door handle 109 is turned, and the first connecting shaft 302 connected to the rear door handle 109 rotates at the same time, driving the first bevel gear 303 to rotate, and the first bevel gear 303 drives the second bevel gear 304 to rotate, and at the same time drives the first connecting shaft 302, the second connecting shaft 305, and the third connecting shaft 307, and the third connecting shaft 307 drives the first fixed disk 401 in the interlocking control mechanism 400 and the control wheel 402 fixed on the first fixed disk 401 to rotate, and the first control rack 408 and the second control rack 411 in the interlocking control mechanism 400 move outward as the control wheel 402 rotates, and the latch 412 passes through the latch hole in the second hinge 106 to lock the front door 101 to prevent the front door 101 from opening by mistake.

[0057] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An interlocking switch cabinet, characterized in that: A front door (101) installed at the front of the switch cabinet body (100), a rear door (107) installed at the rear of the switch cabinet body (100), a left side plate (113) installed at the left side of the switch cabinet body (100), a right side plate (114) installed at the right side of the switch cabinet body (100), a top plate installed at the top of the switch cabinet body (100), a bottom plate installed at the bottom of the switch cabinet body (100), a front door frame (102) matched with the front door (101), a rear door frame (108) matched with the rear door (107), a first hinge (105) and a second hinge (106) arranged at the connection between the front door (101) and the front door frame (102), and a third hinge (111) arranged at the connection between the rear door (107) and the rear door frame (108). ) and a fourth hinge (112), metal contacts (200) arranged inside the front door (101), the front door frame (102), the rear door (107), and the rear door frame (108), a front door handle (103) arranged on the front door (101), a first display light (104) arranged above the front door handle (103), a rear door handle (109) arranged on the front door (101), a second display light (110) arranged above the front door handle (103), an interlocking device body (300) connected to the front door handle (103) and the rear door handle (109), and an interlocking control mechanism (400) connected to the interlocking device body (300); the metal contacts (200) include a first contact (201) and a second contact (202); The interlocking device body (300) comprises a bevel gear mounting seat (301), a first bevel gear (303) and a second bevel gear (304) mounted inside the bevel gear mounting seat (301), a first connecting shaft (302) having one end fixedly connected to the first bevel gear (303), a second connecting shaft (305) having one end fixedly connected to the second bevel gear (304), a connecting plate (306) having one side fixedly connected to the other end of the second connecting shaft (305), a third connecting shaft (307) having one end fixedly connected to the other side of the connecting plate (306), and a mounting area (308) connected to the other end of the third connecting shaft (307). ; The first bevel gear (303) and the second bevel gear (304) are installed vertically; the interlocking control mechanism (400) is installed inside the installation area (308); the interlocking control mechanism (400) includes a first fixed disk (401) connected to the third connecting shaft (307) on one side, a control wheel (402) fixedly installed on the other side of the first fixed disk (401), a first control rack (408) and a second control rack (411) matched with the control wheel (402), a latch (412) fixedly connected to the first control rack (408), and a second fixed disk (405) for fixing.

2. The interlock switch cabinet according to claim 1, characterized in that: The installation area (308) is a rectangular tubular structure, the interior of the installation area (308) is a hollow structure, the bottom of the installation area (308) is closed, the top of the installation area (308) is open, the side of the installation area (308) connected to the third connecting shaft (307) is provided with an opening, and the third connecting shaft (307) passes through the side of the installation area (308) through the opening and is vertically connected to the interlocking control mechanism (400).

3. The interlock switch cabinet according to claim 1, characterized in that: The control wheel (402) is "X"-shaped, and is provided with a first control wheel mounting hole (403) and a second control wheel mounting hole (404); the second fixing plate (405) is provided with a first fixing hole (406) and a second fixing hole (407); the first fixing hole (406) and the first control wheel mounting hole (403) are coaxially arranged, and the second fixing hole (407) and the second control wheel mounting hole (404) are coaxially arranged.

4. The interlock switch cabinet according to claim 1, characterized in that: The first control rack (408) includes a rack arranged at the lower end of the first control rack (408) and matching the control wheel (402), a limit block (409) arranged at the middle position, and a fixed area arranged above the limit block (409); the fixed area is provided with a plurality of latch (412) mounting holes (410); the latch (412) is provided with a plurality of latch connection holes (413); the latch connection hole (413) is coaxially arranged with the latch (412) mounting hole (410), and the latch (412) is fixed to the first control rack (408) by screws; the second control rack (411) is a rack matching the control wheel (402); and the second fixed plate (405) is connected to the control wheel (402) by screws.

5. The interlock switch cabinet according to claim 1, characterized in that: The interlocking control mechanism (400) is provided with a latch (412) inside; the interlocking device main body (300) has two, respectively connected to the front door handle (103) and the rear door handle (109); the interlocking control mechanism (400) has two; the second hinge (106) and the third hinge (111) are provided with latch holes matching the latch (412).

6. The interlock switch cabinet according to claim 1, characterized in that: The first hinge (105) is installed at the upper right side of the front door (101), and the second hinge (106) is installed at the lower right side of the front door (101); the third hinge (111) is installed at the upper right side of the rear door (107), and the fourth hinge (112) is installed at the lower right side of the rear door (107); the first hinge (105) and the third hinge (111) are of the same height, and the second hinge (106) and the fourth hinge (112) are of the same height; the front door handle (103) and the first hinge (105) are of the same height, and the rear door handle (109) and the fourth hinge (112) are of the same height.

7. The interlock switch cabinet according to claim 1, characterized in that: There are a plurality of first contacts (201); there are a plurality of second contacts (202); a plurality of first contacts (201) are installed inside the front door (101); a plurality of second contacts (202) are installed in positions of the front door frame (102) corresponding to the first contacts (201) in the front door (101); a plurality of first contacts (201) are installed in the rear door (107); and a plurality of second contacts (202) are installed in positions of the rear door frame (108) corresponding to the first contacts (201) in the rear door (107).

8. The interlock switch cabinet according to claim 1, characterized in that: The first display light (104) and the second display light (110) are connected to the inside of the metal contact (200) via electric wires.

Images