CN109346967B - Mechanical interlocking device for handcart and rear door - Google Patents
Mechanical interlocking device for handcart and rear door Download PDFInfo
- Publication number
- CN109346967B CN109346967B CN201811315350.1A CN201811315350A CN109346967B CN 109346967 B CN109346967 B CN 109346967B CN 201811315350 A CN201811315350 A CN 201811315350A CN 109346967 B CN109346967 B CN 109346967B
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- rotating shaft
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- handcart
- piece
- interlocking device
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims 3
- 230000007547 defect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- LLJRXVHJOJRCSM-UHFFFAOYSA-N 3-pyridin-4-yl-1H-indole Chemical compound C=1NC2=CC=CC=C2C=1C1=CC=NC=C1 LLJRXVHJOJRCSM-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a mechanical interlocking device of a handcart and a back door, which comprises a handcart swinging-in and swinging-out interlocking device and a back door opening interlocking device; the handcart shaking-in and shaking-out interlocking device consists of a linkage plate, a rotating shaft, a fixed bracket, a cotter pin, a connecting piece, a roller and a roller mounting shaft; the back door opening interlocking device consists of a linkage piece, a back door locking piece, a fixed block, a first rotating shaft, a pressure spring, a sleeve, a second rotating shaft, a cotter pin, a stop block and a base. The interlocking piece is a flat plate and is L-shaped, and 1 hole is formed for the rotating shaft to pass through; the rotating shaft is made of round steel, 1 hole is formed for penetrating through the cotter pin, and 2 grooves are formed for positioning the clamp spring; the fixed support is folded into an L shape by a flat plate, one surface of the fixed support is provided with 1 hole for the rotating shaft to pass through, and the other surface of the fixed support is provided with 2 holes for fixing the fixed support with the partition plate. The device has the beneficial effects that the defect of interlocking of the electromagnetic lock is overcome, the safety is improved, and the requirements of mistakenly entering the electrified interval and preventing misoperation in the five-prevention requirements are truly met.
Description
Technical Field
The invention relates to the technical field of medium-voltage distribution equipment, in particular to a mechanical interlocking device for a handcart and a rear door.
Background
Along with the wide application of the switch cabinet in a power system, the requirements of people mainly aiming at the switch cabinet and personal safety guarantee are higher and higher, and the requirements of preventing the switch cabinet from being mistakenly charged and preventing misoperation are particularly important.
At present, in a cabinet without a grounding switch, the opening and closing of the rear door are realized by installing an electromagnetic lock and relying on electric interlocking, so that cabling is required, and extra workload is increased; and auxiliary contacts are required to be connected in series, so that the auxiliary contacts are easy to generate poor contact to cause functional failure, and potential danger exists.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a mechanical interlocking device for a handcart and a back door. The mechanical interlocking device is simple in structure, convenient to assemble and high in reliability, solves the problem that an electromagnetic lock interlocking loop is low in reliability, solves the problem of potential danger existing in personnel operation, and improves personal safety guarantee.
In order to achieve the aim of the invention, the technical scheme adopted by the invention is as follows:
a mechanical interlock for a cart and a rear door, the apparatus comprising: the handcart is composed of an interlocking device for swinging in and out and an interlocking device for opening a back door. The handcart shaking-in and shaking-out interlocking device consists of a linkage plate, a rotating shaft, a fixed bracket, a cotter pin, a connecting piece, a roller and a roller mounting shaft; the back door opening interlocking device consists of a linkage piece, a back door locking piece, a fixed block, a first rotating shaft, a pressure spring, a sleeve, a second rotating shaft, a cotter pin, a stop block and a base. The interlocking piece is a flat plate and is L-shaped, and 1 hole is formed for the rotating shaft to pass through; the rotating shaft is made of round steel, 1 hole is formed for penetrating through the cotter pin, and 2 grooves are formed for positioning the clamp spring; the fixing support is folded into an L shape by a flat plate, one surface of the fixing support is provided with 1 hole for the rotating shaft to pass through, and the other surface of the fixing support is provided with 2 holes for fixing with the partition plate; the cotter pin is used for fixing the connecting piece and the rotating shaft; the connecting piece is U-shaped, 2 holes are formed in the side face of the U-shaped, 1 hole is used for a rotating shaft to penetrate through, 1 hole is used for a roller installation shaft to penetrate through, 2 holes and 1 square hole are formed in the bottom face of the U-shaped, one hole is used for a cotter pin to penetrate through, and the other hole and the square hole are reserved (if needed, a tension spring can be installed); the roller is a nylon rod, and a hole 1 is formed in the middle of the roller for the roller mounting shaft to pass through; the roller mounting shaft is made of round steel, and two grooves are formed in the surface of the roller mounting shaft and used for positioning snap springs. The linkage piece is provided with 1 slotted hole and 2 round holes, the 1 slotted hole is used for the cotter pin to pass through, the 1 round hole is used for the cylindrical end of the second rotating shaft to pass through, and the other hole is used for fixing the linkage piece on the hole of the cylindrical end of the second rotating shaft through a screw; the rear door locking plate is a flat plate, and is provided with 1 hole for being installed on the first rotating shaft; the fixed block is a rectangular flat plate, a round hole is formed in the middle of one end of the fixed block, an angular hole is formed in the middle of the other end of the fixed block and used for the passing and limiting of the first rotating shaft, and two holes are formed in two ends of the fixed block and used for being installed on the side plate respectively; the first rotating shaft is formed by processing a hexagonal rod, one end of the first rotating shaft is processed into a cylinder and used for penetrating into a fixed block, the top surface of the cylinder is processed into a small cylinder again, a center position of the small cylinder after slotting is drilled with a threaded hole and used for installing a rear door lock plate, and two grooves on the surface of the small cylinder can be used for installing a supporting plate so as to ensure concentricity of the first rotating shaft and the second rotating shaft; the pressure spring is a compression spring and is arranged in the sleeve; the sleeve is a cylinder, and a hexagonal through hole is formed in the middle of the sleeve and used for connecting the first rotating shaft and the second rotating shaft, so that the first rotating shaft and the second rotating shaft can rotate consistently; the second rotating shaft is formed by processing a hexagonal rod, one end of the second rotating shaft is processed into a cylinder which is used for penetrating through the base, 1 hole is formed in the cylinder for fixing the linkage piece, and 1 groove for installing the clamp spring is formed for front and back positioning of the second rotating shaft; the cotter pin is used for penetrating through the stop block and the linkage piece, so that the linkage piece is limited in the notch of the stop block; the stop block is a flat plate, one corner is cut into an oblique angle, so that a handcart can enter the cabinet conveniently, a notch is formed in the space for the linkage piece to rotate, and 2 holes are formed in two sides of the notch to penetrate through the stop block for penetrating through the cotter pin; the base is U-shaped, through holes are formed in two side faces of the U-shaped, the through holes are used for penetrating and fixing the second rotating shaft, notch openings are formed in the upper portions of the two side faces of the U-shaped, the notch openings are used for moving and guiding and limiting the stop block, and 2 counter bores are formed in the bottom of the U-shaped and are used for fixing bolts of the base and the handcart guide rail.
The invention has the following beneficial effects: the mechanical interlocking device for the handcart and the back door provided by the invention has the advantages that the defect of interlocking of the electromagnetic lock is overcome, the safety is improved, and the requirements of mistaken charging interval and misoperation prevention in five-prevention requirements are truly met.
Drawings
FIG. 1 is a schematic view of the installation of the device of the present invention;
FIG. 2 is a bottom view of the device of the present invention;
FIG. 3 is a partially exploded view of the device of the present invention;
FIG. 4 is a partially exploded view of the device of the present invention;
FIG. 5 is a partially exploded view of the device of the present invention;
FIG. 6 is a partially exploded view of the device of the present invention;
FIG. 7 is a partially exploded view of the device of the present invention;
FIG. 8 is a partially exploded view of the device of the present invention;
FIG. 9 is a structural exploded view of the hand truck in-and-out interlock device of the present invention;
FIG. 10 is a structural exploded view of the back door opening interlock of the present invention;
the labels in the figures are: 1-an interlocking device; 2-a guide rail; 3-a rear door; 4-side plates; 5-a handcart; 6-a separator; 11-an interlock; 12-opening an interlocking device of the rear door; 21-notch; 31-square holes; 51-mechanism locking tab; 110-interlocking piece; 111-rotating shaft; 112-fixing the bracket; 113-cotter pin; 114-a connector; 115-a roller; 116-a roller mounting shaft; 120-linkage piece; 121-rear door lock tab; 122-a fixed block; 123-a first rotation axis; 124-compression spring; 125-sleeve; 126-a second spindle; 127-cotter pin; 128-stop; 129-base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
As shown in the drawings, the present invention includes: the handcart is rocked into and out of the interlocking device 11 and the back door is opened to the interlocking device 12. The handcart rocking-in and rocking-out interlocking device 11 consists of a interlocking plate 110, a rotating shaft 111, a fixed bracket 112, a cotter pin 113, a connecting piece 114, a roller 115 and a roller mounting shaft 116; the back door opening interlocking device 12 is composed of a linkage piece 120, a back door locking piece 121, a fixed block 122, a first rotating shaft 123, a pressure spring 124, a sleeve 125, a second rotating shaft 126, a cotter pin 127, a stop block 128 and a base 129. The handcart swing-in and swing-out interlocking device 11 is assembled as follows: the interlocking piece 110 is penetrated on the rotating shaft 111 and welded and fixed at a certain angle, sequentially penetrates through the fixed bracket 112, the connecting piece 114 and the fixed bracket 112, then the connecting piece 114 is fixed on the rotating shaft 111 by the cotter pin 113, the roller 115 is fixed on the connecting piece 114 by the roller mounting shaft 116 through the snap spring, and then the whole body is fixed on the partition plate 6 by the bolts through the holes of the fixed bracket 112, at the moment, the interlocking piece 110 is positioned in the notch 21 of the guide rail 2; the rear door opening interlock 12 is assembled as follows: the base 129 is fixed with the guide rail 2 through 2 counter bores at the U-shaped bottom by bolts, the hexagonal head end of the second rotating shaft 126 is inserted into one end of the sleeve 125 and then welded and fixed, the cylindrical head end of the second rotating shaft 126 passes through a round hole at two sides of the U-shaped of the base 129 and then passes through a round hole of the linkage piece 120, the linkage piece 120 is fixed on the cylindrical body of the second rotating shaft by a cotter pin through the round hole on the cylindrical body of the second rotating shaft, the cylindrical head end of the second rotating shaft passes through the other side holes at two sides of the U-shaped of the base 129, the second rotating shaft 126 is positioned on the base 129 by a clamp spring on a groove at the cylindrical head end of the second rotating shaft, the stop block 128 is put into a notch of the base 129, and the linkage piece 120 is fixed in the notch of the stop block 128 by a shaft pin 127; the compression spring 124 is placed from the opening end of the sleeve 125, then the hexagonal head end of the first rotating shaft 123 is inserted into the sleeve 125, the other end of the first rotating shaft 123 penetrates through the 12 corner hole of the fixed block 122, penetrates out of the round hole on the other side of the fixed block 122, then the fixed block 122 is fixed on the side plate 4 by bolts, at this time, the hexagonal end at the bottom of the cylinder of the first rotating shaft 123 is just embedded into the 12 corner hole of the fixed block 122, and finally the rear door lock piece 121 is fixed on the groove at the top end of the cylinder of the first rotating shaft 123 by bolts, and after the assembly is completed, the top end of the cylinder of the first rotating shaft 123 exceeds the side plate under the action force of the compression spring 124.
The handcart is in the isolation position, the rear door is closed, the rear door locking plate 121 is rotated to be in the horizontal position, the rear door is in a crossed state with the square hole 31 on the rear door 3, at the moment, the rear door is in a locking state, and the handcart can perform a shaking operation;
the handcart is in the isolation position, the rear door is closed, the rear door lock 121 is rotated to be in the vertical position, the rear door is in the same direction as the square hole 31 on the rear door 3, at the moment, the rear door is in the unlocking state, the rear door is opened, and the handcart cannot swing in;
in the rear door opening state, the first rotating shaft 123 is clamped into the 12 corner hole of the fixed block 122 under the action of the pressure spring 124, the position is limited, the rear door locking piece 121 cannot rotate, namely, the rear door opening interlocking device 12 is locked, and the rear door opening interlocking device 12 can be unlocked only on the premise of closing the rear door 3, so that the rear door locking piece 121 is operated.
The handcart is in the isolation-working position or in the working position, the rear door lock piece 121 is in the horizontal position, the interlocking piece 110 blocks the movement route of the stop block 128, at the moment, the rear door lock piece 121 cannot be rotated, at the moment, the rear door is in a locking state, the handcart can be subjected to shaking-in and shaking-out operation, and the rear door cannot be opened.
The rear door is not opened, the stop 128 is not locked with the locking piece 51 of the handcart rocking-in and rocking-out mechanism, and the handcart can rock in and rock out; the rear door is opened, and the stopper 128 is locked with the locking piece 51 of the hand truck swing in and out mechanism, and the hand truck cannot swing in and out.
The interlocking relationship is as follows:
when the handcart 5 is in the isolation position, the handcart is not operated by the swinging-in and swinging-out interlocking device 11, the interlocking plate 110 is in the starting position, and the movement route of the stop block 128 is not blocked; under the condition that the back door 3 is closed, due to the existence of the compression spring 124, the cylinder of the first rotating shaft 123 exceeds the side plate and is pressed by the back door 3 to be flat with the surface of the side plate 4, at this time, the hexagonal end of the bottom of the cylinder of the first rotating shaft 123 is positioned outside the 12 corner hole of the fixed block 122, the back door opening interlocking device 12 is operable, and the back door locking piece 121 is rotated to the unlocking position, so that the back door 3 can be opened. The rear door lock plate 121 drives the first shaft 123, the sleeve 125 and the second shaft 126 to rotate in the same direction, the linkage piece 120 fixed on the second shaft 126 rotates around the second shaft 126, and the pushing shaft pin 127 moves the stop block 128 along the notch of the base 129. If the handcart is at the isolated position, the stop 128 presses the locking plate 51 of the handcart swinging-in and swinging-out mechanism, and the handcart 5 cannot swing in and out, so that the handcart cannot enter the working position. After the rear door 3 is opened, the top end of the cylinder of the first rotating shaft 123 exceeds the side plate under the action of the compression spring 124, at this time, the hexagonal end of the bottom of the cylinder of the first rotating shaft 123 is located in the 12-angle hole of the fixed block 122, the position of the first rotating shaft 123 is locked, the whole rear door opening interlocking device 12 is locked, the rear door locking piece 121 cannot be operated, and the stop 128 keeps the action of pressing the locking piece 51 of the handcart rocking-in and rocking-out mechanism. When the cart 5 is in the isolation position and the working position or in the working position (at this time, the back door 3 is necessarily closed), since the roller 115 is pushed to move during the shaking process of the cart 5, the roller 115 drives the locking plate 110 to rotate through the connecting piece 114, the cotter pin 113 and the rotating shaft 111, the movement path of the stop block 128 is blocked by the rotation of the locking plate 110, and the stop block 128 cannot act, so that the back door lock piece 121 linked with the stop block 128 cannot be rotated, the back door opening interlocking device 12 is locked, and the back door 3 cannot be opened.
As described above, the mechanical interlocking device for the handcart and the rear door removes the defect of interlocking of the electromagnetic lock, improves the safety, and truly meets the requirement of preventing the mistaken entering of the electrified interval in the five-prevention requirement.
The sequence of the above embodiments is only for convenience of description, and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. The mechanical interlocking device for the handcart and the back door is characterized by comprising a handcart swinging in and out interlocking device and a back door opening interlocking device;
the handcart shaking-in and shaking-out interlocking device consists of a linkage plate, a rotating shaft, a fixed bracket, a cotter pin, a connecting piece, a roller and a roller mounting shaft;
the back door opening interlocking device consists of a linkage piece, a back door locking piece, a fixed block, a first rotating shaft, a pressure spring, a sleeve, a second rotating shaft, a cotter pin, a stop block and a base,
the interlocking piece is a flat plate and is L-shaped, and 1 hole is formed for the rotating shaft to pass through; the rotating shaft is made of round steel, 1 hole is formed for penetrating through the cotter pin, and 2 grooves are formed for positioning the clamp spring; the fixing bracket is folded into an L shape by a flat plate, one surface is provided with 1 hole for the rotating shaft to pass through, the other surface is provided with 2 holes for fixing with the partition plate,
the cotter pin is used for fixing the connecting piece and the rotating shaft; the connecting piece is U-shaped, 2 holes are respectively formed on the side surface of the U-shaped, 1 is used for the rotating shaft to pass through, 1 is used for the roller installation shaft to pass through, 2 holes and 1 square hole are formed on the bottom surface of the U-shaped, one hole is used for the cotter pin to pass through, the other hole and the square hole are reserved,
the roller is a nylon rod, and a hole 1 is formed in the middle of the roller for the roller mounting shaft to pass through; the roller mounting shaft is made of round steel, two grooves are formed on the surface of the roller mounting shaft for positioning the clamping springs,
the linkage piece is provided with 1 slotted hole and 2 round holes, 1 slotted hole is used for the penetration of the split pin, 1 round hole is used for the penetration of the cylindrical end of the second rotating shaft, the other hole is used for fixing the linkage piece on the hole of the cylindrical end of the second rotating shaft through a screw,
the rear door locking plate is a flat plate, and is provided with 1 hole for being installed on the first rotating shaft; the fixed block is a rectangular flat plate, a round hole is formed in the middle of one end of the fixed block, an angular hole is formed in the middle of the other end of the fixed block and used for the passing and limiting of the first rotating shaft, two holes are formed at two ends of the fixed block and used for being installed on the side plate (4),
the first rotating shaft is formed by processing a hexagonal rod, one end of the first rotating shaft is processed into a cylinder and used for penetrating into a fixed block, the top surface of the cylinder is processed into a small cylinder again, a center position of the small cylinder after slotting is drilled with a threaded hole and used for installing a rear door lock plate, and two grooves on the surface of the small cylinder can be used for installing a supporting plate so as to ensure concentricity of the first rotating shaft and the second rotating shaft; the pressure spring is a compression spring and is arranged in the sleeve,
the sleeve is a cylinder, and a hexagonal through hole is formed in the middle of the sleeve and used for connecting the first rotating shaft and the second rotating shaft, so that the first rotating shaft and the second rotating shaft can rotate consistently; the second rotating shaft is formed by processing a hexagonal rod, one end of the second rotating shaft is processed into a cylinder which is used for penetrating through the base, 1 hole is formed in the cylinder for fixing the linkage plate, 1 groove for installing the clamp spring is formed for front and back positioning of the second rotating shaft,
the cotter pin is used for penetrating through the stop block and the linkage piece, so that the linkage piece is limited in the notch of the stop block;
the stop block is a flat plate, one corner is cut with an oblique angle, the handcart is convenient to enter the cabinet, a notch is opened for the space for the rotation of the linkage piece, two holes are opened at two sides of the notch to penetrate through the stop block for the penetration of the cotter pin,
the base is U-shaped, through holes are formed in two side faces of the U-shaped, the through holes are used for penetrating and fixing the second rotating shaft, notch openings are formed in the upper portions of the two side faces of the U-shaped, the notch openings are used for moving and guiding and limiting the stop block, and 2 counter bores are formed in the bottom of the U-shaped and are used for fixing the base and bolts of the handcart guide rail (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315350.1A CN109346967B (en) | 2018-11-06 | 2018-11-06 | Mechanical interlocking device for handcart and rear door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315350.1A CN109346967B (en) | 2018-11-06 | 2018-11-06 | Mechanical interlocking device for handcart and rear door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346967A CN109346967A (en) | 2019-02-15 |
| CN109346967B true CN109346967B (en) | 2024-04-16 |
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ID=65313986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811315350.1A Active CN109346967B (en) | 2018-11-06 | 2018-11-06 | Mechanical interlocking device for handcart and rear door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346967B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202333565U (en) * | 2011-11-30 | 2012-07-11 | 上海通用电气开关有限公司 | Chassis vehicle device with door-closing operation |
| CN206820336U (en) * | 2017-04-27 | 2017-12-29 | 山东爱普电气设备有限公司 | A kind of circuit breaker cart of high-voltage board and the interlock at front door |
| CN209448316U (en) * | 2018-11-06 | 2019-09-27 | 上海广电电气(集团)股份有限公司 | A kind of mechanical interlocks of handcart and back door |
-
2018
- 2018-11-06 CN CN201811315350.1A patent/CN109346967B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202333565U (en) * | 2011-11-30 | 2012-07-11 | 上海通用电气开关有限公司 | Chassis vehicle device with door-closing operation |
| CN206820336U (en) * | 2017-04-27 | 2017-12-29 | 山东爱普电气设备有限公司 | A kind of circuit breaker cart of high-voltage board and the interlock at front door |
| CN209448316U (en) * | 2018-11-06 | 2019-09-27 | 上海广电电气(集团)股份有限公司 | A kind of mechanical interlocks of handcart and back door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109346967A (en) | 2019-02-15 |
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