CN203352499U - Explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use - Google Patents
Explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use Download PDFInfo
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- CN203352499U CN203352499U CN 201320433279 CN201320433279U CN203352499U CN 203352499 U CN203352499 U CN 203352499U CN 201320433279 CN201320433279 CN 201320433279 CN 201320433279 U CN201320433279 U CN 201320433279U CN 203352499 U CN203352499 U CN 203352499U
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Abstract
The utility model provides an explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use. The multi-loop electromagnetic starter comprises a master cabinet, two auxiliary cabinet cabinets and blocking devices. The blocking apparatus of the master box comprises a central blocking device, an isolation switch blocking device, a power supply blocking device, a quick-opening blocking device, a first locking bar, a first linkage apparatus, a driven gear, a second linkage apparatus and a second locking bar; and the blocking apparatuses of the two auxiliary cabinets have the same structure with the blocking device of the master box except without the central blocking device and the power supply blocking device. The blocking apparatuses of all cabinets are fixedly connected through two cascade connection devices. According to each blocking apparatus, the central blocking device is drivingly connected with the gear at one end of the first locking bar, the quick-opening blocking device is drivingly connected with the gear of the second locking bar, and the first locking bar and the first linkage apparatus are drivingly connected with the driven gear. According to the explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use, the structure is simple, costs are low, the safety is greatly raised, and cascade connection is convenient.
Description
Technical field
The utility model relates to the mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter, is specifically related to a kind of locking device of mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter.
Background technology
The safe starting of the various motors at coal mine operation scene is a very important ring of coal mining enterprise's safety in production, the equipment of using for actuating motor under mine at present is mainly mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter (aftermentioned all is called for short starter), must be in the situation that the maintenance of being opened the door that also has a power failure under the state of safety when starter opens the door maintenance.In order to prevent causing because of various reasons the possible situation generation of under "on" position, starter being opened the door and overhauling, starter all is provided with the safety interlock system that opens the door usually, but current locking device, through a large amount of investigation, show, be much half locking device, also, in the situation that energising also can be opened the door of starter, easily cause the starter hotline maintenance, and under coal mine under explosive environment, such operation brings huge hidden danger to safety.And, the locking device of current starter is generally the locking device of single form, complex structure, with high costs, and when need to be in the mainframe box cascade of starter during the slave case more than 1, locking device usually can not connect use or cascade very difficult, and in practice, in order to save the various reasons such as space under mine, need a starter to drive more motor, thereby several slave casees of cascade are very general on the mainframe box of starter.
The utility model content
The purpose of this utility model is: overcome the deficiencies in the prior art, provide a kind of have simple in structure, cost is lower, easy to operate, fail safe good, the locking reliability is high and be easy to the mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the locking device of cascade.
The technical solution of the utility model is: mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the present utility model comprises mainframe box, the first slave case, the second slave case and locking device; Mainframe box, the first slave case and the second slave case all have casing and quick operating valve, and quick operating valve is located on casing; Its design feature is: above-mentioned locking device comprises central door locking device, separation switch lock device, power locking device, quick operating valve locking device, the first locking bar, the first linkage, driven gear device, the second linkage, the second locking bar and cascade jockey;
Above-mentioned central door locking device, power locking device respectively are provided with respectively 1 cover and are installed on mainframe box; Separation switch lock device is provided with 3 covers that structure is identical, is located at respectively on the casing of mainframe box, the first slave case and the second slave case; The quick operating valve locking device is provided with 3 covers that structure is identical, is located at respectively on the quick operating valve of mainframe box, the first slave case and the second slave case; The first locking bar, the first linkage, driven gear device, the second linkage and the second locking bar respectively are provided with respectively 3 covers that structure is identical, in mainframe box, the first slave case and the second slave case, 1 cover respectively are set respectively; The cascade jockey is provided with identical 2 of structure;
The above-mentioned central door locking device of being located at mainframe box and a side gear of the first locking bar are in transmission connection; The opposite side of the first locking bar is connected with the driven gear device gear drive; The quick operating valve locking device is connected with the second locking bar gear drive; The first linkage is connected with the driven gear device gear drive; During locking, separation switch lock device and power locking device are pegged graft with the first locking bar respectively; The second locking bar and the second linkage elasticity are joined; The first linkage and the second locking bar are pegged graft; During release, separation switch lock device does not all contact with the first locking bar with power locking device; The second locking bar does not contact with the second linkage and the first linkage; The second linkage and the first linkage are conflicted and are joined;
Identical in being located in the first slave case and the second slave case the mutual connection matching relationship of a set of separation switch lock device, quick operating valve locking device, the first locking bar, the first linkage, driven gear device, the second linkage and the second locking bar separately and being located at mainframe box;
The above-mentioned left end of being located at the first locking bar in the first slave case is fixedly connected with the right-hand member of the first locking bar in being located at mainframe box by 1 cascade jockey; The right-hand member of being located at the first locking bar in the first slave case is fixedly connected with the left end of the first locking bar in being located at the second slave case by another 1 cascade jockey.
Preferably: the central door locking device of above-mentioned locking device comprises first handle, first handle box, first handle lid, first-hand arbor, spring, gear, outer collar, inside race and collar;
First handle comprises the body of rod and connector; The body of rod is fixedly connected with connector; The first handle box is the column members of front and back to hollow, and the rear end of first handle box is fixedly connected with casing; The front end of first handle box is fixedly connected with the first handle lid; Respectively be provided with respectively 1 draw-in groove on the below of first handle box and middle part, right side; The rear end of first handle lid is provided with a recessed circular notch forward; First-hand arbor is the steel integral pieces of front and back to setting, and first-hand arbor comprises square column body and cylinder part; Spring is helical spring; Outer collar and inside race are the column member of hollow; Outer collar is fixedly connected with casing with its outer wall; Inside race is fixedly connected with the inwall of outer collar with its outer wall; The square column body of first-hand arbor is arranged in the first handle box; The front end of the cylinder part of first-hand arbor and inside race matched in clearance rotatably are socketed; First handle is with the rear end socket of the square column body of its connector and first-hand arbor; Collar is located between the rear end of connector of the front end of cylinder part of first-hand arbor and first handle; Spring is arranged in the first handle box, and spring housing is connected on the square column body of first-hand arbor, the front end Elastic Contact of the circular notch of the front end of spring and first handle lid; The front side Elastic Contact of the rear end of spring and the connector of first handle; Gear is fixedly mounted on the rear end of first-hand arbor.
Further scheme is: above-mentioned separation switch lock device comprises second handle, second handle box, second handle lid, second-hand's arbor, spring, gear, outer collar, inside race, collar, isolating switch locking bar, locking wheel and latch buttons;
The second handle of separation switch lock device, second handle box, second handle lid, second-hand's arbor, spring, gear, outer collar, inside race and collar correspondence respectively are basic identical with structure and the mounting means of first handle, first handle box, first handle lid, first-hand arbor, spring, gear, outer collar, inside race and the collar of central door locking device; Difference is: the right side of the second handle box of separation switch lock device is provided with an approximately fan-shaped notch of 1/3 circumferential length; The isolating switch locking bar is steelwork, and integral body is strip, can be arranged on casing up and downly.The middle part of the upward and downward of isolating switch locking bar is provided with tooth bar.The isolating switch locking bar is provided with identical 2 of structure, distinguishes as forward locking bar and reversion locking bar.The forward locking bar is oppositely arranged with the tooth bar of locking bar with the position, intermediate portion that reverse and its tooth bar separately meshes with gear respectively.
Locking wheel global shape is outstanding forward truncated cone-shaped; The locking wheel is comprised of front cylinder part and rear cylinder part one, and the external diameter of rear cylinder part is greater than the external diameter of front cylinder part; The axis of locking wheel is provided with front and back that the external diameter with the cylinder part of second-hand's arbor adapts to the axis hole connected, and the locking wheel is fixedly connected with second-hand's arbor interference fit with its axis hole, and is positioned at the rear of casing; The outer wall of the rear cylinder part of locking wheel is provided with 3 inside recessed arc notch.
Latch buttons is by installation sleeve, pressure cap, drive link, spring and stop that wheel forms.The pipe that installation sleeve is hollow, the installation sleeve front and back are to being fixedly mounted on casing.Pressure cap is socketed in the front end of installation sleeve movably; Drive link integral body is column member; Stop that wheel integral body is oblate pole piece; The rear end of drive link is fixedly connected with stopping wheel; The rear end Elastic Contact of the front end of drive link and spring; The front end sleeve of spring is connected in pressure cap.
Further scheme is: above-mentioned power locking device comprises the 3rd handle, the 3rd handle box, the 3rd handle lid, the 3rd Handle axis, spring, gear, outer collar, inside race, collar and power supply locking bar; The 3rd handle of power locking device, the 3rd handle box, the 3rd handle lid, the 3rd Handle axis, spring and gear, outer collar, inside race, collar correspondence respectively are basic identical with structure and the mounting means of first handle, first handle box, first handle lid, first-hand arbor, spring, gear, outer collar, inside race and the collar of central door locking device.Difference is: a below of being located at the 3rd handle box in 2 draw-in grooves of the 3rd handle box of power locking device, and another is located at the middle part, left side of the 3rd handle box; The power supply locking bar is steelwork, and integral body is strip, can be arranged on casing up and downly.The middle part of the upward and downward of power supply locking bar is provided with tooth bar.The power supply locking bar is with the rack and pinion engagement of position, intermediate portion.
Further scheme is: above-mentioned quick operating valve locking device comprises the 4th handle, the 4th handle box, the 4th handle lid, the 4th Handle axis, spring, gear, outer collar, inside race and collar; The 4th handle of quick operating valve locking device, the 4th handle box, the 4th handle lid, the 4th Handle axis, spring, gear, outer collar, inside race and collar correspondence respectively are basic identical with structure and the mounting means of first handle, first handle box, first handle lid, first-hand arbor, spring, gear, outer collar, inside race and the collar of central door locking device.Difference is: the quick operating valve locking device is arranged on quick operating valve; And a middle part, right side of being located at the 4th handle box in 2 draw-in grooves of the 4th handle box of quick operating valve locking device, another is located at the middle part, left side of the 4th handle box.
Further scheme is: the first above-mentioned locking bar is the whole steel integral piece that is the cuboid rod-like element; The two ends of the first locking bar respectively are provided with one with externally threaded cylindrical cascade double-screw bolt; The first locking bar respectively is provided with respectively one section driving cog in the upper end of the inboard of 2 cascade double-screw bolts; The first locking bar respectively is provided with respectively front and back to the installation sliding eye connected in the inboard of 2 sections driving cogs; The first locking bar is provided with the first lockhole, the second lockhole and the 3rd lockhole from right to left successively 2 inboards that sliding eye is installed.
Further scheme is: the first above-mentioned linkage comprises ratch, connecting rod, central door locking quick operating valve pin, quick operating valve deadlock lever and bracing piece;
Ratch is the whole steelwork that is strip; Ratch can be arranged on casing up and downly; The stage casing of ratch is provided with driving cog; The connecting rod left and right is to setting; Ratch is connected with upper surface, the right side one of connecting rod by its lower end; Central door locking quick operating valve pin upward and downward arranges and is connected with lower surface, the left side one of connecting rod by its upper end; The quick operating valve deadlock lever is connected with the lower surface one of the middle part of connecting rod by its upper end; Bracing piece is oblique to be arranged between central door locking quick operating valve pin and quick operating valve deadlock lever, and weld with quick operating valve deadlock lever and central door locking quick operating valve pin respectively at its two ends, left and right.
Further scheme is: above-mentioned driven gear device comprises gear shaft, gear installation axle sleeve, the first gear, the second gear; The front end of gear shaft is fixedly mounted on casing; Gear is installed the middle rear end that axle sleeve is fixedly mounted on gear shaft; The first gear and the second gear are installed in rotation on from front to back the gear installation shaft and put; The ratch engagement of the first gear and the first linkage; Driving cog engagement on the left side body of rod of the second gear and the first locking bar.
Further scheme is: the second above-mentioned linkage comprises matrix, pin, connecting bolt 83, spring and spring steady pin;
The integral piece that matrix is inverted L shape; Matrix comprises upside plate body and left side plate body; The middle part of the upside plate body of matrix is provided with the slotted eye of rectangular up/down perforation, and the plate body of the both sides, front and back at place, slotted eye place is provided with the bolt hole that connects use; The middle part of the upward and downward of the left side plate body of matrix is provided with left and right to the spring mounting hole connected;
Pin comprises all-in-one-piece main part, upper stop part and lower contact site; Main part, upper stop part and lower contact site are the cuboid part; The middle part of main part is provided with the bolt hole of front and back to the connection use connected; Upper stop part is connected with upper end, the left side one of main part by its lower end; Lower contact site is connected with the downside right-hand member one of main part by its left end; The middle part of main part is arranged in the slotted eye of matrix and is movably connected by bolt and matrix; The left end of spring is fixed in the spring mounting hole of matrix by the spring steady pin; The right-hand member of spring be fixed by a pin to pin main part middle part on the lower side the side position on.
The second above-mentioned locking bar is the shaft-like steel integral piece of cuboid; The left part of the second locking bar and right part respectively are provided with respectively one sliding eye are installed, and the second locking bar is installed sliding eye by these 2 and is arranged on movably on casing with bolt; The left side body of rod that sliding eye is installed on the right side of the second locking bar is provided with one section downward driving cog; The left side body of rod that sliding eye is installed in the left side of the second locking bar is provided with lockhole.
Further scheme is: above-mentioned cascade jockey comprises the first threaded connector, cross connector, the second threaded connector, split pin; Split pin is provided with 2; One end of cross connector is by an end pin joint of 1 split pin and the first threaded connector; The other end of cross connector is by an end pin joint of 1 split pin and the second threaded connector;
The cascade double-screw bolt on the first locking bar right side that the first threaded connector of 1 cascade jockey in 2 above-mentioned cascade jockeys is interior with mainframe box is threaded, and the cascade double-screw bolt in the first locking bar left side that the second threaded connector is interior with the first slave case is threaded; The cascade double-screw bolt on the first locking bar right side that the first threaded connector of another 1 cascade jockey is interior with the first slave case is threaded, and the cascade double-screw bolt in the first locking bar left side that the second threaded connector is interior with the second slave case is threaded.
The utlity model has positive effect: (1) mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the present utility model, its locking device is simple in structure, and cost is lower.(2) mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the present utility model, its locking device is by the design of mechanical structure, the operation that realization must be opened the door and close the door according to the order of setting, otherwise can't realize opening the door or closing the door, thereby fundamentally stopped starter is carried out the operation of hotline maintenance, made fail safe be greatly enhanced.(3) mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the present utility model, its locking device is by supporting cascade connector is set, and when the mainframe box of starter continues cascade slave case, the mutual cascade of locking device is very convenient.
The accompanying drawing explanation
The schematic diagram that Fig. 1 is mainframe box of the present utility model;
Fig. 2 is to the vertical view after the Rotate 180 degree before and after Fig. 1;
The A-A that Fig. 3 is Fig. 2 is to cutaway view;
Fig. 4 is located at the structure enlarged diagram of the locking device in mainframe box for from Fig. 3 forward observation the time, has also shown starter matching relationship between each device when door opening state in figure;
Fig. 5 is that the locking device shown in Fig. 4 is at starter matching relationship schematic diagram between each device when closing the door state;
The structural representation that Fig. 6 is the central door locking device in Fig. 1, also shown the casing of local starter in figure;
The B-B that Fig. 7 is Fig. 6, to cutaway view, has also shown the meshing relation of the first locking bar in central door locking device and Fig. 4 in figure;
The structural representation that Fig. 8 is the separation switch lock device in Fig. 1, also shown the casing of local starter in figure;
The C-C that Fig. 9 is Fig. 8 is to cutaway view, in figure, also shown with Fig. 4 in the matching relationship of the first locking bar;
The structural representation that Figure 10 is the power locking device in Fig. 1, also shown the casing of local starter in figure;
The D-D that Figure 11 is Figure 10 is to cutaway view;
The structural representation that Figure 12 is the quick operating valve locking device in Fig. 1, also shown the quick operating valve of local starter in figure;
The E-E that Figure 13 is Figure 12, to cutaway view, has also shown the meshing relation of the second locking bar in quick operating valve locking device and Fig. 4 in figure;
The structural representation that Figure 14 is the first linkage in Fig. 4;
The structural representation that Figure 15 is driven gear device during from right-hand observe of Fig. 4, in figure, also shown itself and starter casing annexation and with the meshing relation of the first locking bar and the first linkage;
The structural representation that Figure 16 is the second linkage in Fig. 4;
The left view that Figure 17 is Figure 16;
The vertical view that Figure 18 is Figure 16;
The F-F that Figure 19 is Figure 18 is to cutaway view;
Figure 20 is structural representation of the present utility model;
The structural representation that Figure 21 is starter of the present utility model its locking device when door opening state shown in Figure 20;
The structural representation that Figure 22 is starter of the present utility model its locking device when closing the door state shown in Figure 20;
The structural representation that Figure 23 is the cascade jockey in Figure 21;
Figure 24 is Figure 23 structural representation after 90-degree rotation forward, has also carried out local analysing and observe in figure.
Reference numeral in above-mentioned accompanying drawing is as follows:
Central door locking device 1, first handle 11, body of rod 11-1, connector 11-2, first handle box 12, draw-in groove 12-1, first handle lid 13, first-hand arbor 14, spring 15, gear 16, outer collar 17, inside race 18, collar 19;
Separation switch lock device 2, second handle 21, second handle box 22, draw-in groove 22-1, second handle lid 23, second-hand's arbor 24, spring 25, gear 26, isolating switch locking bar 27, forward locking bar 27-1, reversion locking bar 27-2, locking wheel 28, latch buttons 29, installation sleeve 29-1, pressure cap 29-2, drive link 29-3, spring 29-4, stop wheel 29-5;
Quick operating valve locking device 4, the four handle 41, the four handle boxes 42, draw-in groove 42-1, the 4th handle lid 43, the four Handle axis 44, spring 45, gear 46;
The first locking bar 5, cascade double-screw bolt 51, driving cog 52, install sliding eye 53, the first lockhole 54, the second lockhole 55, the three lockholes 56,
The first linkage 6, ratch 61, installing hole 61-1, driving cog 61-2, connecting rod 62, central door locking quick operating valve pin 63, quick operating valve deadlock lever 64, bracing piece 65;
Driven gear device 7, gear shaft 71, gear is installed axle sleeve 72, the first gear 73, the second gears 74, shop bolt 75;
The second linkage 8, matrix 81, pin 82, main part 82-1, upper stop part 82-2, lower contact site 82-3, connecting bolt 83, spring 84, spring steady pin 85;
The second locking bar 9, install sliding eye 91, driving cog 92, lockhole 93;
Mainframe box 1a, the first slave case 1b, the second slave case 1c, casing 100, quick operating valve 101.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
(embodiment 1)
In the present embodiment, when orientation is described, take direction the place ahead in describing of court of Fig. 1 institute, the rear of the Fig. 1 of take direction behind in describing, the left and right directions of Fig. 1 is still the left and right directions in describing, the above-below direction of Fig. 1 is still the above-below direction in describing.
See Figure 20 to Figure 22, the mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the present embodiment (aftermentioned all is called for short starter), there is mainframe box 1a, the first slave case 1b, the second slave case 1c and locking device, the first slave case 1b and mainframe box cascade, the second slave case 1c and the first slave case 1b cascade.Mainframe box 1a, the first slave case 1b and the second slave case 1c all have casing 100 and quick operating valve 101.But be arranged on casing 100 quick operating valve 101 open and closes.
The locking device of starter mainly is comprised of central door locking device 1, separation switch lock device 2, power locking device 3, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8, the second locking bar 9 and cascade jockey 10.
Central door locking device 1 and power locking device 3 are respectively established respectively 1 cover; Separation switch lock device 2, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8 and the second locking bar 9 respectively are provided with respectively 3 covers; Cascade jockey 10 is provided with 2.
Central door locking device 1 and power locking device 3 are located on mainframe box 1a; 3 cover separation switch lock devices 2, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8 and the second locking bar 9 respectively arrange 1 cover at mainframe box 1a, the first slave case 1b and the second slave case 1c respectively.Between the locking device of the locking device of the locking device of mainframe box 1a and the first slave case 1b and the locking device of the first slave case 1b and the second slave case 1c, by 2 cascade jockeys 10, be fixedly connected with.
See Fig. 1 to Fig. 7, the central door locking device 1 of being located at mainframe box 1a is comprised of first handle 11, first handle box 12, first handle lid 13, first-hand arbor 14, spring 15, gear 16, outer collar 17, inside race 18 and collar 19.
First handle 11 is comprised of body of rod 11-1 and connector 11-2.The body of rod 11-1 of first handle 11 is the steel rod-like element with 2 bendings, and centered by the connector 11-2 of first handle 11, position is provided with the column member of front and back to square through hole, and the body of rod 11-1 of first handle 11 is fixedly connected with connector 11-2.First handle box 12 is the column members of front and back to hollow, casing 100 welding of the rear end of first handle box 12 and mainframe box 1a; The front end of first handle box 12 is fixedly connected with by screw with first handle lid 13; First handle box 12 is provided with 2 draw-in groove 12-1, a below of being located at first handle box 12 in these 2 draw-in groove 12-1, and another in these 2 draw-in groove 12-1 is located at the middle part, right side of first handle box 12; The position of these 2 draw-in groove 12-1 is locking and the release of blocking device respectively.The rear end of first handle lid 13 is provided with a recessed circular notch forward.First-hand arbor 14 is the steel integral pieces of front and back to setting, and first-hand arbor 14 is comprised of square column body and cylinder part one.Spring 15 is helical spring.Gear 16 is fixedly mounted on the rear end of first-hand arbor 14.The circle cover that outer collar 17 is iron hollow, the circle cover that inside race 18 is copper hollow.Outer collar 17 is fixedly connected with casing 100 with its outer wall; Inside race 18 is fixedly connected with the inwall of outer collar 17 with its outer wall; The square column body of first-hand arbor 14 is arranged in first handle box 12; The front end of the cylinder part of first-hand arbor 14 and inside race 18 matched in clearance rotatably are socketed; First handle 11 is with the rear end socket of the square column body of its connector 11-2 and first-hand arbor 14; Collar 19 is located between the rear end of connector 11-2 of the front end of cylinder part of first-hand arbor 14 and first handle 11.Spring 15 is arranged in first handle box 12, and spring 15 is socketed on the square column body of first-hand arbor 14, the front end Elastic Contact of the circular notch of the front end of spring 15 and first handle lid 13; The front side Elastic Contact of the connector 11-2 of the rear end of spring 15 and first handle 11.Gear 16 is fixedly mounted on the rear end of first-hand arbor 14.
The first handle 11 of central door locking device 1, for carrying out the operation of locking and release, at first needs during operation the first handle 11 in draw-in groove 12-1 is pulled and made to be rotated after its disengaging draw-in groove 12-1 again to the place ahead of casing 100; After being rotated in place, again first handle 11 is stuck in the draw-in groove 12-1 of locked position of coupler or unlocked position.Spring 15 makes it be close to the use of the draw-in groove 12-1 of latch handle box 12 for pushing first handle 11.Gear 16 transmits stroke by rotation.
See Fig. 1, Fig. 4, Fig. 8 and Fig. 9, separation switch lock device 2 is comprised of second handle 21, second handle box 22, second handle lid 23, second-hand's arbor 24, spring 25, gear 26, outer collar, inside race, collar, isolating switch locking bar 27, locking wheel 28 and latch buttons 29.
The second handle 21 of separation switch lock device 2, second handle box 22, second handle lid 23, second-hand's arbor 24, spring 25, gear 26, outer collar, inside race and collar correspondence respectively are basic identical with structure and the mounting means of first handle 11, first handle box 12, first handle lid 13, first-hand arbor 14, spring 15, gear 16, outer collar 17, inside race 18 and the collar 19 of central door locking device 1.Difference is: the second handle box 22 of separation switch lock device 2 is different from the first handle box 12 of central door locking device 12 draw-in groove 12-1 is set; The right side of the second handle box 22 of separation switch lock device 2 is provided with an approximately fan-shaped notch 22-1 of 1/3 circumferential length, when the upper right side of second handle 21 being pulled to this notch 22-1, centre, right side and position, lower right, starter is correspondingly controlled the motor be driven and is carried out forward, stops and reversing.Isolating switch locking bar 27 is steelwork, and integral body is strip, can be arranged on casing 100 up and downly.The middle part of the upward and downward of isolating switch locking bar 27 is provided with tooth bar.Isolating switch locking bar 27 is provided with identical 2 of structure, distinguishes as forward locking bar 27-1 and reversion locking bar 27-2.Forward locking bar 27-1 is oppositely arranged with the tooth bar of locking bar 27-2 with the position, intermediate portion that reverse and its tooth bar separately meshes with gear 26 respectively.
Locking is taken turns 28 global shapes for outstanding forward truncated cone-shaped; Locking wheel 28 is comprised of front cylinder part and rear cylinder part one, and the external diameter of rear cylinder part is greater than the external diameter of front cylinder part; The axis of locking wheel 28 is provided with front and back that the external diameter with the cylinder part of second-hand's arbor 24 adapts to the axis hole connected, and locking wheel 28 is fixedly connected with second-hand's arbor 24 interference fit with its axis hole, and is positioned at the rear of casing 100; The outer wall of the rear cylinder part of locking wheel 28 is provided with 3 inside recessed arc notch.
Latch buttons 29 is by installation sleeve 29-1, pressure cap 29-2, drive link 29-3, spring 29-4 and stop that wheel 29-5 forms.The pipe that installation sleeve 29-1 is hollow, installation sleeve 29-1 front and back are to being fixedly mounted on casing 100.Pressure cap 29-2 is socketed in the front end of installation sleeve 29-1 movably; Drive link 29-3 integral body is column member; Stop that wheel 29-5 integral body is oblate pole piece; The rear end of drive link 29-3 is fixedly connected with stopping wheel 29-5; The rear end Elastic Contact of the front end of drive link 29-3 and spring 29-4; The front end sleeve of spring 29-4 is connected in pressure cap 29-2.Latch buttons 29 is for locking and decontrol separation switch lock device 2: when the arc notch on the outer wall of the rear cylinder part that stops wheel 29-5 and locking wheel 28 joins, locking separation switch lock device 2 is also that the second handle 21 of separation switch lock device 2 can not rotate; After latch buttons 29 is pressed backward, thereby stop that the arc notch on the outer wall that wheel 29-5 moves backward with the rear cylinder part of locking wheel 28 breaks away from, now the second handle 21 of separation switch lock device 2 can rotate.
See Fig. 1, Figure 10 and Figure 11, power locking device 3 mainly is comprised of the 3rd handle 31, the 3rd handle box 32, the 3rd handle lid 33, the 3rd Handle axis 34, spring 35, gear 36, outer collar, inside race, collar and power supply locking bar 37.
The 3rd handle 31, the 3rd handle box 32, the 3rd handle lid 33, the 3rd Handle axis 34, spring 35 and the gear 36 of power locking device 3, outer collar, inside race, collar correspondence respectively are basic identical with structure and the mounting means of first handle 11, first handle box 12, first handle lid 13, first-hand arbor 14, spring 15, gear 16, outer collar 17, inside race 18 and the collar 19 of central door locking device 1.Difference is: a below of being located at the 3rd handle box 32 in 2 draw-in groove 32-1 of the 3rd handle box 32 of power locking device 3, another is located at the middle part, left side of the 3rd handle box 32, and another draw-in groove 12-1 of the first handle box 12 of central door locking device 1 is arranged on the middle part, right side; 2 draw-in groove 32-1 positions of the 3rd handle box 32 are corresponding outage and the energising of controlling power supply respectively.Power supply locking bar 37 is steelwork, and integral body is strip, can be arranged on casing 100 up and downly.The middle part of the upward and downward of power supply locking bar 37 is provided with tooth bar.Power supply locking bar 37 is with rack and pinion 36 engagements of position, intermediate portion.The 3rd handle 31 is opened and disconnected operation for the power supply of starter, during operation, needs first the 3rd handle 31 to be pulled to the front portion of casing 100 just can be rotated afterwards.
See Fig. 1, Figure 12 and Figure 13, quick operating valve locking device 4 is comprised of the 4th handle 41, the 4th handle box 42, the 4th handle lid 43, the 4th Handle axis 44, spring 45, gear 46, outer collar, inside race and collar.
The 4th handle 41, the 4th handle box 42, the 4th handle lid 43, the 4th Handle axis 44, spring 45, gear 46, outer collar, inside race and the collar of quick operating valve locking device 4 correspondence respectively is basic identical with structure and the mounting means of first handle 11, first handle box 12, first handle lid 13, first-hand arbor 14, spring 15, gear 16, outer collar 17, inside race 18 and the collar 19 of central door locking device 1.Difference is: quick operating valve locking device 4 is not mounted on casing 100, and is mounted on quick operating valve 101; And a middle part, right side of being located at the 4th handle box 42 in 2 draw-in groove 42-1 of the 4th handle box 42 of quick operating valve locking device 4, another is located at the middle part, left side of the 4th handle box 42; The opening the door and closing the door of corresponding quick operating valve 101 respectively of these 2 draw-in groove 42-1 positions.And a below of being located at first handle box 12 in 2 draw-in groove 12-1 of the first handle box 12 of central door locking device 1, another is located at the middle part, right side of first handle box 12.
See Fig. 4 and Fig. 5, the first locking bar 5 is the steel integral piece, and the main body of the first locking bar 5 is the cuboid rod-like element; The two ends of the first locking bar 5 respectively are provided with one with externally threaded cylindrical cascade double-screw bolt 51; The first locking bar 5 respectively is provided with respectively one section driving cog 52 in the upper end of the inboard of 2 cascade double-screw bolts 51; The first locking bar 5 respectively is provided with respectively front and back to the installation sliding eye 53 connected in the inboard of 2 sections driving cogs 52; The first locking bar 5 is provided with the first lockhole 54, the second lockhole 55 and the 3rd lockhole 56 from right to left successively 2 inboards that sliding eye 53 is installed.The first lockhole 54 of the first locking bar 5 is corresponding with the power supply locking bar 37 of power locking device 3, for locking power locking device 3; The second lockhole 55 of the first locking bar 5 and the 3rd lockhole 56 are corresponding with forward locking bar 27-1 and the reversion locking bar 27-2 of the isolating switch locking bar 27 of separation switch lock device 2 respectively, for locking separation switch lock device 2.During locking, insert in corresponding lockhole the lower end of corresponding locking bar, while unblanking locking bar break away from corresponding lockhole.
See Fig. 4, Fig. 5 and Figure 14, the first linkage 6 mainly is comprised of ratch 61, connecting rod 62, central door locking quick operating valve pin 63, quick operating valve deadlock lever 64 and bracing piece 65.
Ratch 61 is steelwork, and integral body is strip, can be arranged on casing 100 up and downly.The top of ratch 61 is provided with installing hole 61-1; The stage casing of ratch 61 is provided with driving cog 61-2.Connecting rod 62 left and right are to setting; Ratch 61 is connected with upper surface, the right side one of connecting rod 62 by its lower end; Central door locking quick operating valve pin 63 upward and downward settings and being connected with lower surface, the left side one of connecting rod 62 by its upper end; Quick operating valve deadlock lever 64 is connected with the lower surface one of the middle part of connecting rod 62 by its upper end; Bracing piece 65 is oblique to be arranged between central door locking quick operating valve pin 63 and quick operating valve deadlock lever 64, and weld with quick operating valve deadlock lever 64 and central door locking quick operating valve pin 63 respectively at its two ends, left and right.
See Fig. 4, Fig. 5 and Figure 15, driven gear device 7 is mainly installed axle sleeve 72, the first gear 73, the second gear 74 and shop bolt 75 by gear shaft 71, gear and is formed.
The front end of the gear shaft 71 of driven gear device 7 is fixedly mounted on casing 100.Gear is installed the middle rear end that axle sleeve 72 is fixedly mounted on gear shaft 71; The first gear 73 and the second gear 74 are arranged on from front to back gear and install on axle sleeve 72, and can rely on respectively gear that axle sleeve 72 is installed and rotate.Shop bolt 75 is arranged on the rear end of gear shaft 71, for preventing that gear from installing axle sleeve 72 and gear comes off.
See Fig. 4, Fig. 5 and Figure 16 to Figure 19, the second linkage 8 mainly is comprised of matrix 81, pin 82, connecting bolt 83, spring 84 and spring steady pin 85.The second linkage 8 is fixedly mounted on casing 100.
The integral piece that matrix 81 is inverted L shape.Matrix 81 is comprised of upside plate body and left side plate body one.The middle part of the upside plate body of matrix 81 is provided with the slotted eye of rectangular up/down perforation, and the plate body of the both sides, front and back at place, slotted eye place is provided with the bolt hole that connects use.The middle part of the upward and downward of the left side plate body of matrix 81 is provided with left and right to the spring mounting hole connected.
See Fig. 4 and Fig. 5, the second locking bar 9 is the steel integral piece.The main body of the second locking bar 9 is the cuboid rod-like element; The left part of the second locking bar 9 and right part respectively are provided with respectively installation sliding eye 91, the second locking bars 9 and are arranged on movably on casing 100 by these 2 installation sliding eye 91 use bolts.The left side body of rod that sliding eye 91 is installed on the right side of the second locking bar 9 is provided with one section downward driving cog 92; This driving cog 92 meshes with the gear 46 of quick operating valve locking device 4; The left side body of rod that sliding eye 91 is installed in the left side of the second locking bar 9 is provided with lockhole 93, and this lockhole 93 coordinates the locking realized quick operating valve locking device 4 for the quick operating valve deadlock lever 64 with the first linkage 6.
Still see Figure 20 to Figure 22, separation switch lock device 2, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8 and the second locking bar 9 of being located at the first slave case 1b are corresponding identical with structure and the mounting means of the separation switch lock device 2 of being located at mainframe box 1a, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8 and the second locking bar 9 respectively.
Separation switch lock device 2, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8 and the second locking bar 9 of being located at the second slave case 1c are corresponding identical with structure and the mounting means of the separation switch lock device 2 of being located at mainframe box 1a, quick operating valve locking device 4, the first locking bar 5, the first linkage 6, driven gear device 7, the second linkage 8 and the second locking bar 9 respectively.
See Figure 23 and Figure 24, cascade jockey 10 mainly is comprised of the first threaded connector 10-1, cross connector 10-2, the second threaded connector 10-3, split pin 10-4, pin 10-5 and locking nut 10-6.
The first threaded connector 10-1 is comprised of threaded joints and pin joint section one.The threaded joints integral body of the first threaded connector 10-1 is the cylindrical of hollow, and its inwall is provided with the internal thread that connects use; Its outer wall is provided with the notch of 3 to 5 indents, when notch is used for connecting, is convenient to tighten as the instruments such as spanner connect.The pin joint section of the first threaded connector 10-1 connects plate body by 2 before and after being divided into and forms, and the middle place of these 2 plate bodys is provided with front and back to the pin-and-hole for connecting connected.
Cross connector 10-2 is comprised of matrix, left linking arm and right linking arm one.The left linking arm of cross connector 10-2 is provided with the pin-and-hole of front and back to the connection use connected; The right linking arm of cross connector 10-2 is provided with the pin-and-hole of the connection use of upward and downward perforation.
The structure of the second threaded connector 10-3 is identical with the structure of the first threaded connector 10-1.The end of split pin 10-4 is provided with pin hole.Split pin 10-4 and pin 10-5 respectively are provided with respectively 2.
The pin joint section of the first threaded connector 10-1 is by the left linking arm pin joint of split pin 10-4 and cross connector 10-2; The right linking arm pin joint of the pin joint section of the second threaded connector 10-3 and cross connector 10-2; 2 pin 10-5 are corresponding being inserted in the pin hole of 2 split pin 10-4 respectively.
The first threaded connector 10-1 of 1 cascade jockey 10 in 2 cascade jockeys 10 is threaded with the cascade double-screw bolt 51 on the first locking bar 5 right sides in mainframe box 1a, and the cascade double-screw bolt 51 in the first locking bar 5 left sides that the second threaded connector 10-3 is interior with the first slave case 1b is threaded; The cascade double-screw bolt 51 on the first locking bar 5 right sides that the first threaded connector 10-1 of another 1 cascade jockey 10 is interior with the first slave case 1b is threaded, and the cascade double-screw bolt 51 in the first locking bar 5 left sides that the second threaded connector 10-3 is interior with the second slave case 1c is threaded.Thereby can realize easily that the cascade between the locking device of mainframe box 1a, the first slave case 1b and the second slave case 1c is connected.When needs continue cascade slave case, can locking device be expanded and cascade according to aforementioned manner.
The starter of the present embodiment, the locking of its locking device, the course of work of unblanking and each parts relation of cooperatively interacting are summarized as follows:
See Figure 22, when starter, when closing the door operating state, the driving cog 92 of the second locking bar 9 of mainframe box 1a, the first slave case 1b and the second slave case 1c meshes with the gear 46 of corresponding (being in same cabinet) quick operating valve locking device 4 respectively; The quick operating valve deadlock lever 64 of each first linkage 6 is inserted in the lockhole 93 of corresponding the second locking bar 9, and the left end of the second locking bar 9 is tight against the right side of lower contact site 82-3 of the pin 82 of corresponding the second linkage 8; The upper stop part 82-2 of the pin 82 of the second linkage 8 and 63 dislocation of the central door locking quick operating valve pin of corresponding the first linkage 6; The ratch 61 of the first linkage 6 meshes with the first gear 73 of corresponding driven gear device 7; The second gear 74 of driven gear device 7 is meshed with the driving cog 52 on the left side body of rod of corresponding the first locking bar 5; The power supply locking bar 37 of power locking device 3 is inserted in the first lockhole 54 of the first locking bar 5 in mainframe box 1a; The reversion locking bar 27-2 that the forward locking bar 27-1 of the isolating switch locking bar 27 of each separation switch lock device 2 is inserted in the second lockhole 55 of corresponding the first locking bar 5 the isolating switch locking bar 27 of (when the motor of being controlled by starter under the forward state) or separation switch lock device 2 is inserted in the 3rd lockhole 56 of the first locking bar 5 (when the motor of being controlled by starter under inverted status); Driving cog 52 on the right side body of rod of the first locking bar 5 that the gear 16 of central door locking device 1 is interior with mainframe box 1a is meshed; Now, the door of starter can not be opened, in the operating state of closing the door.
See Figure 20 and Figure 21, when starter need to open the door, at first need to press the latch buttons 29 of each separation switch lock device 2, make the locking wheel 28 of separation switch lock device 2 break away from clamping with latch buttons 29, then rotate the second handle 21 of separation switch lock device 2 to stop position, make isolating switch locking bar 27 pull out release in the second lockhole 55 of the first locking bar 5 or the 3rd lockhole 56; The 3rd handle 31 that then rotates power locking device 3 is by on-position to de-energized, and the power supply locking bar 37 that drives power locking device 3 is pulled out release in the first lockhole 54 of the first locking bar 5 in mainframe box 1a; Then the first handle 11 of rotation center locking device 1 is from the position of closing the door to opening position, in this process, the gear 16 of central door locking device 1 pulls 3 the first locking bar 5 motions from left to right simultaneously that link into an integrated entity by cascade jockey 10, simultaneously, each first locking bar 5 is by the transmission of the first gear 73 of corresponding driven gear device 7, the second gear 74 that drives coaxial driven gear device 7 rotates, thereby drive each first linkage 6, moves upward; Make the quick operating valve deadlock lever 64 of each first linkage 6 from the interior disengaging release of the lockhole 93 of corresponding the second locking bar 9; Finally rotate the 4th handle 41 of each quick operating valve locking device 4 by closing the door to opening position, in this process, the gear 46 of each quick operating valve locking device 4 drives corresponding the second locking bar 9 and moves from left to right; The right side of the lower contact site 82-3 of the left end of each second locking bar 9 and the pin 82 of corresponding the second linkage 8 disengages; Under the elastic force effect of each the second linkage 8 compressed spring 84 under its state of closing the door, the upper stop part 82-2 of the pin 82 of each second linkage 8, to left movement, connects with the central door locking quick operating valve pin 63 of corresponding the first linkage 6; Now can open the quick operating valve 101 of each cabinet of starter.
The course of work that starter is closed the door is contrary with the aforesaid course of work of opening the door, and according to the operation of the reverse order with opening the door, can realize closing the door of starter.
To sum up, the mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter of the present embodiment, its locking device, simple in structure, cost is lower; By the design of mechanical structure, the operation that realization must be opened the door and close the door according to the order of setting, otherwise can't realize opening the door or closing the door, thereby fundamentally stopped starter is carried out the operation of hotline maintenance, make fail safe be greatly enhanced.
Above embodiment is the explanation to embodiment of the present utility model; but not to restriction of the present utility model; person skilled in the relevant technique is not in the situation that break away from spirit and scope of the present utility model; can also make various conversion and variation and obtain the corresponding technical scheme be equal to, therefore all technical schemes that are equal to all should be included into scope of patent protection of the present utility model.
Claims (2)
1. a mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter, comprise mainframe box (1a), the first slave case (1b), the second slave case (1c) and locking device; Described mainframe box (1a), the first slave case (1b) and the second slave case (1c) all have casing (100) and quick operating valve (101), and quick operating valve (101) is located on casing (100); It is characterized in that: described locking device comprises central door locking device (1), separation switch lock device (2), power locking device (3), quick operating valve locking device (4), the first locking bar (5), the first linkage (6), driven gear device (7), the second linkage (8), the second locking bar (9) and cascade jockey (10);
Described central door locking device (1), power locking device (3) respectively are provided with respectively 1 cover and are installed on mainframe box (1a); Separation switch lock device (2) is provided with 3 covers that structure is identical, is located at respectively on the casing (100) of mainframe box (1a), the first slave case (1b) and the second slave case (1c); Quick operating valve locking device (4) is provided with 3 covers that structure is identical, is located at respectively on the quick operating valve (101) of mainframe box (1a), the first slave case (1b) and the second slave case (1c); The first locking bar (5), the first linkage (6), driven gear device (7), the second linkage (8) and the second locking bar (9) respectively are provided with respectively 3 covers that structure is identical, in mainframe box (1a), the first slave case (1b) and the second slave case (1c), 1 cover respectively are set respectively; Cascade jockey (10) is provided with identical 2 of structure;
The described central door locking device (1) of being located at mainframe box is in transmission connection with a side gear of the first locking bar (5); The opposite side of the first locking bar (5) is connected with driven gear device (7) gear drive; Quick operating valve locking device (4) is connected with the second locking bar (9) gear drive; The first linkage (6) is connected with driven gear device (7) gear drive; During locking, separation switch lock device (2) and power locking device (3) are pegged graft with the first locking bar (5) respectively; The second locking bar (9) joins with the second linkage (8) elasticity; The first linkage (6) is pegged graft with the second locking bar (9); During release, separation switch lock device (2) does not all contact with the first locking bar (5) with power locking device (3); The second locking bar (9) does not contact with the second linkage (8) and the first linkage (6); The second linkage (8) is conflicted and is joined with the first linkage (6);
Identical in being located in the first slave case (1b) and the second slave case (1c) the mutual connection matching relationship of a set of separation switch lock device (2), quick operating valve locking device (4), the first locking bar (5), the first linkage (6), driven gear device (7), the second linkage (8) and the second locking bar (9) separately and being located at mainframe box;
The described right-hand member of being located at left end first locking bar (5) interior with being located at mainframe box (1a) by 1 cascade jockey (10) of first locking bar (5) of (1b) in the first slave case is fixedly connected with; The left end of being located at right-hand member first locking bar (5) interior with being located at the second slave case (1c) by another 1 cascade jockey (10) of the first locking bar (5) in the first slave case (1b) is fixedly connected with.
2. mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter according to claim 1, it is characterized in that: the central door locking device (1) of described locking device comprises first handle (11), first handle box (12), first handle lid (13), first-hand arbor (14), spring (15), gear (16), outer collar (17), inside race (18) and collar (19);
First handle (11) comprises the body of rod (11-1) and connector (11-2); The body of rod (11-1) is fixedly connected with connector (11-2); First handle box (12) is the column members of front and back to hollow, and the rear end of first handle box (12) is fixedly connected with casing (100); The front end of first handle box (12) is fixedly connected with first handle lid (13); Respectively be provided with respectively 1 draw-in groove (12-1) on the below of first handle box (12) and middle part, right side; The rear end of first handle lid (13) is provided with a recessed circular notch forward; First-hand arbor (14) is the steel integral pieces of front and back to setting, and first-hand arbor (14) comprises square column body and cylinder part; Spring (15) is helical spring; Outer collar (17) and inside race (18) are the column member of hollow; Outer collar (17) is fixedly connected with casing (100) with its outer wall; Inside race (18) is fixedly connected with the inwall of outer collar (17) with its outer wall; The square column body of first-hand arbor (14) is arranged in first handle box (12); The front end of the cylinder part of first-hand arbor (14) and inside race (18) matched in clearance rotatably are socketed; First handle (11) is the rear end socket with the square column body of first-hand arbor (14) with its connector (11-2); Collar (19) is located between the rear end of connector (11-2) of the front end of cylinder part of first-hand arbor (14) and first handle (11); Spring (15) is arranged in first handle box (12), and spring (15) is socketed on the square column body of first-hand arbor (14), the front end Elastic Contact of the circular notch of the front end of spring (15) and first handle lid (13); The front side Elastic Contact of the connector (11-2) of the rear end of spring (15) and first handle (11); Gear (16) is fixedly mounted on the rear end of first-hand arbor (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320433279 CN203352499U (en) | 2013-07-19 | 2013-07-19 | Explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320433279 CN203352499U (en) | 2013-07-19 | 2013-07-19 | Explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use |
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| Publication Number | Publication Date |
|---|---|
| CN203352499U true CN203352499U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320433279 Withdrawn - After Issue CN203352499U (en) | 2013-07-19 | 2013-07-19 | Explosion-proof and intrinsically safe vacuum multi-loop electromagnetic starter for mining use |
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| CN (1) | CN203352499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300839A (en) * | 2013-07-19 | 2015-01-21 | 天地（常州）自动化股份有限公司 | Explosion-proof and intrinsically safe multi-loop vacuum electromagnetic starter for mining |
-
2013
- 2013-07-19 CN CN 201320433279 patent/CN203352499U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300839A (en) * | 2013-07-19 | 2015-01-21 | 天地（常州）自动化股份有限公司 | Explosion-proof and intrinsically safe multi-loop vacuum electromagnetic starter for mining |
| CN104300839B (en) * | 2013-07-19 | 2016-08-24 | 天地（常州）自动化股份有限公司 | Mine explosion-suppression and intrinsic safety type multi-circuit vacuum electromagnetic starter |
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Granted publication date: 20131218 Effective date of abandoning: 20160824 |
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