CN208915184U - A kind of novel contact group of subway - Google Patents

Abstract

The utility model discloses a kind of novel contact groups of subway, including bottom plate, the mounting plate and shell that are installed on bottom plate, it is equipped with contact group linkage mechanism in shell, contact group linkage mechanism includes link block, outer casing inner wall is equipped with sliding shoe, baffle, forms sliding groove between baffle；Housing interior side-wall offers limiting slot, and guide pad is slidably connected in limiting slot, includes the first guide surface on guide pad, and one end of sliding shoe is equipped with the second guide surface；The other end of sliding shoe is equipped with driving spring, and one end of driving spring is fixedly connected on outer casing inner wall；Interior of shell is equipped with starting pawl, and the one end for starting pawl contacts at guide pad bottom surface, and bottom plate offers perforating.The utility model has the following advantages that and effect: using transmission mechanism, it can be achieved that the Dock With Precision Position of the circuit of contact group linkage mechanism；Movement is more steady when sliding shoe moves horizontally；Semicircle guide surface stress in rotation is more uniform；The service life for starting pawl and driving spring is longer.

Description

A kind of novel contact group of subway

Technical field

The utility model relates to subway articles field, in particular to the novel contact group of a kind of subway.

Background technique

The motor-operated switch goat of subway is running important link, and goat refers to reliably to convert track switch Position changes track switch and opens direction, and locking point tongue reflects the important basis of signals equipment of switch location, it can be very Guarantee traffic safety well, improves conevying efficiency, improve the labor intensity of driving personnel, in subway, motor-operated switch goat It is an important link.In railway transportation, train is run according to signal in orbit, constantly by way of track switch or through passageway Trouble turns line.This signal for turning line and opening direction is by the break group on electric point machine and the movable contact group occasionally matched with it And the movements of the components such as indication rod is realized.Electric point machine traction track switch carries out positioning or reverse locking and tongue and basic Whether whether stop position correct and closely connected between rail, is come out by break system representation, determines whether train passes through.

Existing notification number is that the Chinese patent of CN205890907U discloses a kind of reinforcement for railway switch machine Type contact group, including mounting plate, bottom plate, plastic stent and switch enclosure, switch enclosure include connecting plate, movable contact and a pair of quiet connect Point, movable contact are movably set in this between break, further including starting pawl and starting frame, and mounting plate, which is equipped with, to be open, starting Pawl one end and bottom plate are hinged, and starting grabs the other end and stretches out in mounting plate lower end by opening, connect in the middle part of starting frame with plastic stent It connects, starts the frame other end and closely supported on starting pawl under the resilient force of big tension spring.

But the above-mentioned reinforced contact group for railway switch machine has the disadvantage in that big tension spring is vertically arranged at modeling To expect in bracket, one end is flexibly connected with starting frame, and since long-time is by gravity, itself is stretched big tension spring gradually downward, Long period is gradually deteriorated using the recovery capability of lower big tension spring, and there are contact group circuits within the organization cannot achieve accurate docking The problem of.

Utility model content

The purpose of the utility model is to provide a kind of novel contact groups of subway, have after the work of long period, Contact group circuit within the organization remains to the effect accurately docked.

The above-mentioned technical purpose of the utility model has the technical scheme that a kind of subway Novel connecting Point group is provided with contact group linkage mechanism, contact group connection including bottom plate, the mounting plate and shell that are installed on bottom plate in shell Motivation structure includes link block, and outer casing inner wall slidably connects sliding shoe, and outer casing inner wall is provided with baffle symmetrical above and below, between baffle The sliding groove for sliding shoe grafting is formed, link block is rotationally connected with sliding shoe；Outer casing inner wall offers limiting slot, in limiting slot Guide pad is slidably connected along the vertical direction, the first guide surface is provided on guide pad, and one end of sliding shoe is provided with and first Corresponding second guide surface of guide surface；The other end of sliding shoe is provided with for driving sliding shoe to move to close guide pad One end of driving spring, driving spring is fixedly connected on the inner wall of shell；Interior of shell is rotatably connected to starting pawl, starts pawl One end contacts at the bottom surface of guide pad, and bottom plate offers the perforating worn for starting pawl.

By using above-mentioned technical proposal, movement pushing plate starts to act below motor rotation, goat ball-screw When, locking sliding block starts to elapse, and the inclined-plane driving starting pawl of locking slip front rotates clockwise, while making to contact at One end of guide pad pushes guide pad along limiting slot upward sliding, in the effect of working in coordination of the first guide surface and the second guide surface Under, driving sliding shoe is moved along sliding groove to the direction close to driving spring, while being compressed to driving spring；Work as sliding shoe When sliding, the one end for driving link block to be rotationally connected with sliding shoe is moved to close to driving spring, joins contact group linkage mechanism It is dynamic, complete contact quick-action conversion function.After locking sliding block is withdrawn, starting pawl rotates counterclockwise, while making guide pad Along limiting slot slide downward, under the driving effect of driving spring, sliding shoe is transported along sliding groove to the direction far from driving spring Dynamic, when sliding shoe sliding, the one end for driving link block to be rotationally connected with sliding shoe is moved to far from driving spring, makes contact group Linkage mechanism links again, and connecting new position indicates.The Dock With Precision Position of contact group linkage mechanism circuit so can be realized, i.e., Make to be used for a long time, it is also not easily damaged.

The utility model is further arranged to: sliding shoe is provided under driving spring close to one end of driving spring The supporting block in portion, the top surface of supporting block contact at driving spring, and there are gaps between supporting block and the inner wall of shell.

By using above-mentioned technical proposal, in long-term use, make middle part since driving spring will receive gravity Slightly recessed, supporting block can be used for supporting driving spring, reduce its deformation extent, to prolong its service life.

The utility model is further arranged to: supporting block is provided with third guide surface, third far from one end of sliding shoe Guide surface guiding driving spring is located at supporting block top surface.

By using above-mentioned technical proposal, when sliding shoe drives supporting block to move to driving spring, third guide surface can Guiding driving spring moves to supporting block top surface, and can avoid driving spring to a certain extent due to deforming serious can not move to branch On bracer.

The utility model is further arranged to: sliding shoe is along sliding groove horizontal sliding.

By using above-mentioned technical proposal, level sliding can make being more uniformly stressed for sliding shoe, move more steady.

The utility model is further arranged to: one end that starting pawl contacts at sliding shoe is set as semicircle guide surface.

By using above-mentioned technical proposal, when starting pawl moves and is in different rotary angle constantly, semicircle guide surface On have the point inconsistent with guide pad always, and it is identical always to contradict area, makes to start pawl stress more uniform.

The utility model is further arranged to: one end that starting pawl is arranged in perforating is provided with idler wheel.

By using above-mentioned technical proposal, idler wheel can reduce frictional resistance along locking slider roll, so as to extend starting The service life of pawl.

The utility model is further arranged to: the limited block for stopping to start pawl rotation is provided on bottom plate.

By using above-mentioned technical proposal, the setting of limited block can play when rotated restriction effect to starting pawl, thus The angle of starting pawl rotation is limited, starting pawl lower end is can avoid to a certain extent and is exposed to perforating too much.

The utility model is further arranged to: contact group linkage mechanism includes movable contact, quiet connecing of being set on shell Point is provided with connecting column on link block；It is provided with connecting lever on movable contact, intercommunicating pore is offered on connecting lever, between connecting lever and link block It is provided with tension spring, one end of tension spring is arranged in connecting hole, and the other end of tension spring is rotationally connected on connecting column.

By using above-mentioned technical proposal, when link block rotation, under the linkage effect of tension spring and connecting lever, movable contact is left Right swing is realized and the connection between different breaks.

The utility model is further arranged to: the connecting column different there are three height being arranged on link block.

By using above-mentioned technical proposal, when the tensile elongation difference of tension spring, difference can be connected to by adjusting tension spring The connecting column of height realizes the adjustment at tension spring seat.

The utility model is further arranged to: it include copper sheet on break, it is inserted on copper sheet to be welded with silver strip.

By using above-mentioned technical proposal, silver strip relatively reliable can be welded on by break by inserted welding On copper sheet, keep the conduction property between movable contact and break better.

In conclusion the utility model has the following beneficial effects:

1. using transmission mechanism, it can be achieved that the Dock With Precision Position of contact group linkage mechanism circuit；

2. movement is more steady when sliding shoe moves horizontally；Semicircle guide surface stress in rotation is more uniform；

3. the service life for starting pawl and driving spring is longer；

4. the rotation angle that limited block can limit starting pawl；It is connected to according to tension spring different stretch adjustable in length tension spring Connect the seat of block；

5. the conduction property between movable contact and break is better.

Detailed description of the invention

Fig. 1 is the side view of embodiment.

Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1.

Fig. 3 is the control line map of the motor in embodiment.

In figure: 1, bottom plate；2, mounting plate；3, shell；31, limiting slot；32, perforating；33, limited block；4, contact group joins Motivation structure；41, link block；411, connecting column；42, break；43, movable contact；44, connecting lever；441, intercommunicating pore；45, tension spring；5, Transmission mechanism；51, sliding shoe；511, the second guide surface；52, baffle；53, sliding groove；54, guide pad；541, the first guide surface； 55, driving spring；56, start pawl；561, semicircle guide surface；562, idler wheel；6, supporting block；61, third guide surface；7, locking Sliding block；8, copper sheet；9, silver strip；10, breaker；11, Phoenix terminal；12, contact group；13, motor.

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.For ease of description, following "left", "right", " clockwise ", " counterclockwise " are consistent with direction described in attached drawing.

A kind of novel contact group of subway, the novel TS-1 contact group of specially a kind of subway, as shown in Figure 1, including bottom Plate 1, the mounting plate 2 being installed on bottom plate 1 and shell 3 are provided with contact group linkage mechanism 4 and transmission mechanism 5 in shell 3.? In use, motor rotates, pushing plate starts to act below goat ball-screw, makes locking sliding block 7 start to elapse, locking sliding block 7 front end inclined-plane drive transmission device 5 is driven, and under the action of transmission mechanism 5,4 structure of contact group gear is unlocked function And switching motion.

As shown in Figure 1, contact group linkage mechanism 4 includes link block 41, there are three be located at different height for setting on link block 41 The connecting column 411 of degree；It is provided with symmetrical break 42 in shell 3, dynamic connect is provided between two symmetrical breaks 42 Point 43,43 lower end of movable contact is provided with connecting lever 44, and intercommunicating pore 441 is offered on connecting lever 44, is arranged between connecting lever 44 and link block 41 There is tension spring 45, one end of tension spring 45 is arranged in intercommunicating pore 441, and the other end of tension spring 45 is rotationally connected on connecting column 411.

As shown in Figure 1, the inner wall of shell 3 slidably connects sliding shoe 51 in the horizontal direction, also set up on the inner wall of shell 3 There are two groups of baffles 52 symmetrical above and below, form the sliding groove 53 for 51 grafting of sliding shoe between baffle 52, the lower end of link block 41 turns The dynamic middle part for being connected to sliding shoe 51；The left side wall of shell 3 offers limiting slot 31, and sliding connects along the vertical direction in limiting slot 31 It is connected to guide pad 54, guide pad 54 is provided with the first guide surface 541, and one end of sliding shoe 51 is provided with and the first guide surface 541 Corresponding second guide surface 511；The other end of sliding shoe 51 is provided with for driving sliding shoe 51 to transport to close to guide pad 54 Dynamic driving spring 55, the other end of driving spring 55 are fixedly connected on the inner wall of shell 3, and the right end of sliding shoe 51 is provided with position Supporting block 6 in the lower section of driving spring 55, the top surface of supporting block 6 contact at driving spring 55, between 3 inner wall of supporting block 6 and shell There are gap, supporting block 6 is provided with third guide surface 61 far from one end of sliding shoe 51.In long-term use, due to driving bullet Spring 55 will receive gravity and keep middle part slightly recessed, and supporting block 6 can be used for supporting driving spring 55, reduces it and deforms journey Degree, to prolong its service life, when sliding shoe 51 drives supporting block 6 to move to driving spring 55, third guide surface 61 can Guiding driving spring 55 moves to 6 top surface of supporting block, and can avoid driving spring 55 to a certain extent can not due to deforming seriously It moves in supporting block 6；Starting pawl 56 is rotatably connected in shell 3, starting pawl 56 is in lateral T font, the lower end rotation of T font It is connected to shell 3, wherein one end of the left and right ends of T word contacts at the bottom surface of guide pad 54 and this one end is set as semicircle and leads To face 561, when starting pawl 56 and rotating and be in different rotary angle, had always on semicircle guide surface 561 and guide pad 54 inconsistent points, and conflict area is identical always, keeps stress more uniform；Bottom plate 1 offer for start pawl 56 T font it is another The perforating 32 worn is held, and is rotatably connected to idler wheel 562 on this one end, is additionally provided on bottom plate 1 for stopping starting pawl 56 The limited block 33 of rotation.

(the control line map of motor has when movement pushing plate setting in motion below motor rotation, goat ball-screw Body is referring to Fig. 3), the beginning of locking sliding block 7 pushes to the right, and idler wheel 562 is moved along the inclined-plane of 7 front end of locking sliding block, driving starting pawl 56 rotate clockwise, while the one end for making to contact at guide pad 54 pushes guide pad 54 along 31 upward sliding of limiting slot, Under the effect of working in coordination of the first guide surface 541 and the second guide surface 511, drive sliding shoe 51 along sliding groove 53 horizontally to the right Simultaneously compressible drive spring 55 is moved, drives link block 41 to be rotationally connected with one end of sliding shoe 51 with sliding when sliding shoe 51 slides Block 51 moves right together, makes its entirety to counterclockwise movement, under the linkage effect of tension spring 45 and connecting lever 44, movable contact 43 to Right movement is connected with the circuit in the break 42 on right side, completes contact quick-action conversion function.

After locking sliding block 7 is withdrawn, starting pawl 56 move counterclockwise, while make guide pad 54 along limiting slot 31 to Lower slider, under the driving effect of driving spring 55, sliding shoe 51 is moved downward along 53 level of sliding groove, and sliding shoe 51 slides When, the one end for driving link block 41 to be rotationally connected with sliding shoe 51 moves downward, and makes in movable contact 43 and the break 42 in left side Circuit be connected, complete contact quick-action conversion function, connecting new position indicates.Contact group linkage mechanism so can be realized The Dock With Precision Position of 4 circuit, when idler wheel 562 completely disengages locking 7 inclined-plane of sliding block, the setting of limited block 33 can be to starting pawl 56 Restriction effect is played when rotated, to limit the angle that starting pawl 56 rotates, is can avoid under starting pawl 56 to a certain extent End is exposed to perforating 32 too much.

The different connecting column 411 of three height is arranged on link block 41 can pass through when the tensile elongation difference of tension spring 45 Adjust the adjustment that tension spring 45 is connected to the realization of connecting column 411 45 seat of tension spring of different height.Idler wheel 562 is rolled along locking sliding block 7 It is dynamic to reduce frictional resistance, so as to extend the service life of starting pawl 56.The horizontal sliding of sliding shoe 51 can make stress more equal It is even, it moves more steady.

As shown in Fig. 2, the end of break 42 has been provided with copper sheet 8, it is inserted on copper sheet 8 to be welded with silver strip 9.Pass through edge Silver strip 9 relatively reliable can be welded on the copper sheet 8 of break 42 by embedded welding, be made between movable contact 43 and break 42 Conduction property is better.

The basic functional principle of the utility model are as follows: locking sliding block 7 elapses to the right, the inclined-plane driving of 7 front end of locking sliding block Starting pawl 56 rotates clockwise, while the one end for contacting at guide pad 54 being made to push guide pad 54 upward along limiting slot 31 Sliding, under the effect of working in coordination of the first guide surface 541 and the second guide surface 511, driving sliding shoe 51 along sliding groove 53 to It is moved close to the direction of driving spring 55, while driving spring 55 is compressed；When sliding shoe 51 slides, link block is driven 41 one end for being rotationally connected with sliding shoe 51 are moved to close to driving spring 55, so that contact group linkage mechanism 4 is linked, are completed contact Quick-action conversion function.After locking sliding block 7 is withdrawn, starting pawl 56 rotates counterclockwise, while making guide pad 54 along limit 31 slide downward of slot, under the driving effect of driving spring 55, sliding shoe 51 is along sliding groove 53 to the side far from driving spring 55 To movement, when sliding shoe 51 slides, link block 41 is driven to be rotationally connected with one end of sliding shoe 51 to far from driving spring 55 Movement, makes contact group linkage mechanism 4 link again, and connecting new position indicates.Contact group linkage mechanism 4 so can be realized The Dock With Precision Position of circuit.

The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.

Claims (10)

1. the novel contact group of a kind of subway, including bottom plate (1), the mounting plate (2) and shell that are installed on the bottom plate (1) (3), contact group linkage mechanism (4) is provided in the shell (3), it is characterised in that: the contact group linkage mechanism (4) includes Link block (41), shell (3) inner wall slidably connect sliding shoe (51), and shell (3) inner wall is provided with symmetrical above and below Baffle (52), the sliding groove (53) for the sliding shoe (51) grafting, the link block (41) are formed between the baffle (52) It is rotationally connected with the sliding shoe (51)；Shell (3) inner wall offers limiting slot (31), along perpendicular in the limiting slot (31) Histogram is provided with the first guide surface (541), the sliding shoe on the guide pad (54) to slidably connecting guide pad (54) (51) one end is provided with the second guide surface (511) corresponding with the first guide surface (541)；The sliding shoe (51) The other end is provided with for driving the sliding shoe (51) to the driving spring (55) moved close to the guide pad (54), described One end of driving spring (55) is fixedly connected on the inner wall of the shell (3)；Shell (3) inner rotation is connected with starting pawl (56), one end of starting pawl (56) contacts at the bottom surface of the guide pad (54), and the bottom plate (1) offers opens described in confession The perforating (32) that pawl (56) is worn.

2. a kind of novel contact group of subway according to claim 1, it is characterised in that: the sliding shoe (51) is close to institute The one end for stating driving spring (55) is provided with the supporting block (6) positioned at the driving spring (55) lower part, the supporting block (6) Top surface contacts at the driving spring (55), and there are gaps between the supporting block (6) and the inner wall of the shell (3).

3. a kind of novel contact group of subway according to claim 2, it is characterised in that: the supporting block (6) is far from institute The one end for stating sliding shoe (51) is provided with third guide surface (61), and third guide surface (61) is oriented to the driving spring (55) and is located at Supporting block (6) top surface.

4. a kind of novel contact group of subway according to claim 1, it is characterised in that: the sliding shoe (51) is along described Sliding groove (53) horizontal sliding.

5. a kind of novel contact group of subway according to claim 1, it is characterised in that: the starting pawl (56) contacts at One end of the sliding shoe (51) is set as semicircle guide surface (561).

6. a kind of novel contact group of subway according to claim 1, it is characterised in that: the starting pawl (56) is arranged in One end of the perforating (32) is provided with idler wheel (562).

7. a kind of novel contact group of subway according to claim 1, it is characterised in that: be provided on the bottom plate (1) Limited block (33) for stopping starting pawl (56) to rotate.

8. a kind of novel contact group of subway according to claim 1, it is characterised in that: the contact group linkage mechanism (4) include movable contact (43), the break (42) being set on shell (3), be provided with connecting column on the link block (41) (411)；It is provided with connecting lever (44) on the movable contact (43), offers intercommunicating pore (441), the connecting lever on the connecting lever (44) (44) it being provided between the link block (41) tension spring (45), one end of the tension spring (45) is arranged in the intercommunicating pore (441), The other end of the tension spring (45) is rotationally connected on the connecting column (411).

9. a kind of novel contact group of subway according to claim 8, it is characterised in that: be arranged on the link block (41) There are three the different connecting columns (411) of height.

10. a kind of novel contact group of subway according to claim 8, it is characterised in that: wrapped on the break (42) It has included copper sheet (8), it is inserted on the copper sheet (8) to be welded with silver strip (9).