CN207966767U

CN207966767U - A kind of switch core prevents the structure to get stuck

Info

Publication number: CN207966767U
Application number: CN201820090604.3U
Authority: CN
Inventors: 张文刚; 张萌萌
Original assignee: Ruzhou Hua Chao Amperex Technology Ltd
Current assignee: Ruzhou Hua Chao Amperex Technology Ltd
Priority date: 2018-01-19
Filing date: 2018-01-19
Publication date: 2018-10-12
Anticipated expiration: 2028-01-19

Abstract

The utility model discloses a kind of structures that switch core prevents from getting stuck, including briquetting, positive stop strip and motion bar, the positive stop strip is fixedly connected on the front of briquetting, the motion bar is fixedly mounted on the bottom of briquetting, it is opened up at the top of the briquetting fluted, the inner wall of the groove is connected with movable plate, thread groove is offered at the top of the movable plate, the inner thread of the thread groove is connected with fixed ring, the inner wall of the fixed ring is fixedly connected with pull rod, the bottom of the movable plate is fixedly connected with connecting rod, the inner wall of the briquetting top groove offers small through hole, the connecting rod is by the small through hole of briquetting and is connected with cylinder.The utility model realizes being used cooperatively for snap-gauge, convex block and gib block three by being used cooperatively between the structures such as above-mentioned so that briquetting is stably connected with motion bar, effectively avoids briquetting and is occurring the phenomenon that opposite sliding during pressing with motion bar.

Description

A kind of switch core prevents the structure to get stuck

Technical field

The utility model is related to switching technique field, specially a kind of switch core prevents the structure to get stuck.

Background technology

Existing limit switch core mostly uses spring or shrapnel form, switch movable contact piece from normally closed contact be converted into often It opens Contact and is susceptible to and be all not turned on or signal scintillation, this phenomenon, which is easy to cause machinery equipment and malfunction occurs, to be led Machine breakdown is caused, surprisingly stops or starts using may also result in elevator on elevator, using can cause door that can not beat on motor-car It opens, passenger needs emergency evacuation.It solves the problems, such as that this scheme mostly uses at present and normally opened and normally closed metal movable contact spring is made into activity Structure, then adding with little spring makes it be located in both ends on movable contact spring plastic stent between two movable contact springs, is generated by elastic parts Operation force be much larger than the power of little spring, normally closed movable contact spring contact and normally closed connector contact and with movable contact spring plastic stent Gap is generated close to normally closed movable contact spring one end, this gap causes to break with the minim gap for offsetting the generation of switch motion critical localisation Electricity or scintillation, because switch needs to bear to compare high current, gap requires between sound contact, and the gap of generation can be added to Gap between sound contact, it is that switch motion parameter ratio is no with little spring action parameter and away from poor big that such method, which brings problem, Much, the method brings another problem to be：Movable contact spring is positioned with little spring, and in external vibration use environment and to switch itself dynamic Make so that movable contact spring position is easily varied, so as to cause switch so that precision and action parameter tolerance variation are big.Chinese patent is (public Announcement number：CN107039203A) a kind of switch cored structure preventing action dead point, including pedestal, base assembly and activity are disclosed Component, base top surface are equipped with punched out；Base assembly includes lower cover, left normally opened connector assembly, right normally opened connector assembly, left normally closed Connector assembly and right normally closed connector assembly solve signal flicker or circut breaking by being used cooperatively between the structures such as above-mentioned, Switch motion parameter and repeatable accuracy can be improved, but the invention is pressed since briquetting is slidably connected by convex block with motion bar When block is pressed in base plate through holes, it is easy to happen opposite sliding between the two, so that briquetting can not reset in through-hole, needs It makes improvements.

Utility model content

The purpose of this utility model is to provide a kind of switch core structure for preventing from getting stuck, have snap-gauge, convex block and Gib block three's is used cooperatively so that briquetting is stably connected with motion bar, is effectively avoided briquetting and is being pressed with motion bar Occurs the phenomenon that opposite sliding in the process, the more preferable advantage of using effect solves briquetting and slided by convex block with motion bar Connection when briquetting is pressed in base plate through holes, is easy to happen opposite sliding, so that briquetting can not in through-hole between the two It resets, the bad problem of using effect.

To achieve the above object, the utility model provides the following technical solutions：A kind of switch core prevents the structure to get stuck, Including briquetting, positive stop strip and motion bar, the positive stop strip is fixedly connected on the front of briquetting, and the motion bar is fixedly mounted on pressure The bottom of block, opens up at the top of the briquetting fluted, and the inner wall of the groove is connected with movable plate.

Thread groove is offered at the top of the movable plate, the inner thread of the thread groove is connected with fixed ring, described solid The inner wall for determining ring is fixedly connected with pull rod, and the bottom of the movable plate is fixedly connected with connecting rod, the briquetting top groove Inner wall offers small through hole, and the connecting rod is by the small through hole of briquetting and is connected with cylinder, and the bottom of the briquetting is opened Equipped with large through-hole, the cylinder is flexibly connected by the inner wall of briquetting large through-hole with briquetting, and the small through hole is connected to large through-hole, Driving groove is offered at the top of the cylinder, the inner wall of the driving groove is fixedly connected with resetting spring, the resetting spring Bottom is fixedly connected with driver plate, is fixedly connected at the top of the driving groove and driver plate that one end of the connecting rod passes through cylinder, One end of the cylinder is fixedly connected with snap-gauge, and sliding slot is offered at the top of the motion bar, and the snap-gauge passes through motion bar Sliding slot is flexibly connected with motion bar, and the bottom of the motion bar sliding slot offers turn trough, the turn trough that the snap-gauge passes through motion bar It is clamped with motion bar, offers spring groove at the top of one end on the snap-gauge, the inner wall of the spring groove is fixedly connected There is support spring, convex block is fixedly connected at the top of the support spring, the inner wall of the motion bar turn trough offers card slot, institute It states convex block to be clamped with motion bar by the card slot of motion bar, the convex block is flexibly connected by the spring groove of snap-gauge with snap-gauge.

Preferably, the surface pivots on the cylinder in the middle part of it are connected with bearing block, and the outer wall of bearing block is fixed It is connected in the large through-hole of briquetting.

Preferably, dustproof cover, and the inner ring of the size of dustproof cover and fixed ring are rotatably connected at the top of the movable plate It is adapted.

Preferably, the dustproof cover bottom is connected with drop handle, and the back side of dustproof cover offers drop handle accommodating groove

Preferably, the quantity of the support spring is two, and two support springs are using the longitudinal midline of snap-gauge as axis It is symmetrically distributed in the spring groove of snap-gauge.

Compared with prior art, the beneficial effects of the utility model are as follows：

The utility model is by being arranged movable plate, fixed ring, pull rod, connecting rod, cylinder, resetting spring, driver plate, card Plate, support spring, convex block, bearing block and dustproof cover, when needing briquetting connecting with motion bar, first by the direction of snap-gauge and work Sliding slot at the top of lever is corresponding, is then slowly put into the inside of motion bar, until briquetting is in contact with motion bar, at this time one Hand pinches briquetting, the portable dynamic pull rod of another, and the movement of pull rod drives the movement of fixed ring and movable plate, and movable plate, which drives, to be connected Extension bar moves, and connecting rod pulls driver plate compression reseting spring simultaneously, then realizes movable plate and is disengaged with briquetting, at this time Rotation movable plate rotates clockwise 90 degree, keeps movable plate corresponding with the groove at the top of briquetting, and the rotation of movable plate, which drives, to be connected The rotation of extension bar, cylinder, driver plate and snap-gauge so that for snap-gauge in the bottom rotated ninety degrees of motion bar sliding slot, snap-gauge passes through work The turn trough of lever is clamped with motion bar, coordinates the use of convex block and motion bar card slot so that the fixed effect of snap-gauge is more preferable, then Realize being stably connected with for the two.

In conclusion by being used cooperatively between the structures such as above-mentioned, solves briquetting and slided by convex block with motion bar Dynamic connection when briquetting is pressed in base plate through holes, is easy to happen opposite sliding, so that briquetting nothing in through-hole between the two Method resets, and the bad problem of using effect realizes being used cooperatively for snap-gauge, convex block and gib block three so that briquetting and work Lever is stably connected with, and effectively avoids briquetting and is occurring the phenomenon that opposite sliding during pressing with motion bar.

Description of the drawings

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model briquetting side sectional view；

Fig. 3 is that the utility model movable plate drives cylinder and snap-gauge to rotate schematic diagram；

Fig. 4 is the utility model connecting rod and cylinder attachment structure schematic diagram；

Fig. 5 is sliding groove structure schematic diagram at the top of the utility model motion bar.

In figure：1- briquettings, 2- positive stop strips, 3- motion bars, 4- movable plates, 5- fixed rings, 6- pull rods, 7- connecting rods, 8- circles Column, 9- resetting springs, 10- driver plates, 11- snap-gauges, 12- support springs, 13- convex blocks, 14- bearing blocks, 15- dustproof covers.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention.

It please refers to Fig.1 to 5, the utility model provides a kind of technical solution：A kind of switch core prevents the structure to get stuck, wraps Briquetting 1, positive stop strip 2 and motion bar 3 are included, the movement of briquetting 1 has driven the movement of motion bar 3 so that motion bar 3 presses other knots Structure makes corresponding movement, and positive stop strip 2 is fixedly connected on the front of briquetting 1, and the setting of positive stop strip 2 so that briquetting 1 is logical in pedestal When being moved in hole, it can specify that the movement locus of briquetting 1, motion bar 3 are fixedly mounted on the bottom of briquetting 1, motion bar 3 is activity The important component of component, movable component include motion bar 3, briquetting 1, elastic parts, movable contact spring pedestal, movable contact spring and bullet Spring, the top of briquetting 1 open up fluted, and the inner wall of groove is connected with movable plate 4, and the movement of movable plate 4 drives connecting rod 7 Movement, the top of movable plate 4 is rotatably connected to dustproof cover 15, and the size of dustproof cover 15 is adapted with the inner ring of fixed ring 5, The setting of dustproof cover 15 allows dustproof cover 15 to cover the inner ring of fixed ring 5, effectively avoids the entrance of dust, dustproof cover 15 bottoms are connected with drop handle, and the back side of dustproof cover 15 offers drop handle accommodating groove, and the setting of drop handle makes dustproof cover 15 It is conveniently opened, the setting of drop handle accommodating groove makes drop handle facilitate placement.

The top of movable plate 4 offers thread groove, and the inner thread of thread groove is connected with fixed ring 5, the inner wall of fixed ring 5 It is fixedly connected with pull rod 6, fixed ring 5 and being used cooperatively for pull rod 6 make movable plate 4 be easy to be drawn out, pull rod 6 and fixed ring 5 There are certain gaps for bottom, facilitate being put into for finger, the bottom of movable plate 4 to be fixedly connected with connecting rod 7, connecting rod 7 is cut Face is rectangle, and the rotation of movable plate 4 drives connecting rod 7 to rotate, and then realizes the rotation that connecting rod 7 drives cylinder 8, briquetting 1 The inner wall of top groove offers small through hole, and connecting rod 7 is incited somebody to action by the small through hole of briquetting 1 with cylinder 8, cylinder 8 is connected with The rotation of connecting rod 7 passes to snap-gauge 11, and the surface pivots on cylinder 8 in the middle part of it are connected with bearing block 14, and bearing block 14 outer wall is fixedly connected in the large through-hole of briquetting 1, so that the rotation of cylinder 8 is more stable, rotation is imitated for the setting of bearing block 14 Fruit is more preferable, and the bottom of briquetting 1 offers large through-hole, and cylinder 8 is flexibly connected by the inner wall of 1 large through-hole of briquetting with briquetting 1, small logical Hole is connected to large through-hole, and the top of cylinder 8 offers driving groove, and the inner wall of driving groove is fixedly connected with resetting spring 9, resets bullet The restoring force of spring 9 directly acts on driver plate 10, and indirectly-acting is fixed in the other structures such as connecting rod 7, the bottom of resetting spring 9 It is connected with driver plate 10, drives driver plate 10 during the moving upwards of connecting rod 7, and then have compressed resetting spring 9, connect One end of bar 7 is fixedly connected by the driving groove of cylinder 8 with the top of driver plate 10, and one end of cylinder 8 is fixedly connected with snap-gauge 11, snap-gauge 11 follows the rotation of cylinder 8 so that the clamping of the turn trough of 11 rotated ninety degrees of snap-gauge and motion bar 3, the top of motion bar 3 Sliding slot is offered, snap-gauge 11 is flexibly connected by the sliding slot of motion bar 3 with motion bar 3, and the bottom of 3 sliding slot of motion bar, which offers, to be turned Slot, snap-gauge 11 are clamped by the turn trough of motion bar 3 with motion bar 3, and spring groove is offered at the top of one end on snap-gauge 11, The inner wall of spring groove is fixedly connected with support spring 12, and the quantity of support spring 12 is two, and two support springs 12 are with card The longitudinal midline of plate 11 is that axisymmetrical is distributed in the spring groove of snap-gauge 11, and two support springs 12 correspond to two convex blocks 13, Two convex blocks 13 are used cooperatively so that snap-gauge 11 and the clamping of motion bar 3 have certain lock function, support spring 12 Top is fixedly connected with convex block 13, and snap-gauge 11 is clamped by the turn trough of motion bar 3 with motion bar 3, cooperation convex block 13 and motion bar 3 The use of card slot so that snap-gauge 11 and the connection of 3 turn trough of motion bar are more stable, then realize being stably connected with for the two, activity The inner wall of 3 turn trough of bar offers card slot, and convex block 13 is clamped by the card slot of motion bar 3 with motion bar 3, and convex block 13 passes through snap-gauge 11 Spring groove be flexibly connected with snap-gauge 11.

Operation principle：The switch core prevents the structure to get stuck in use, when needing briquetting 1 connecting with motion bar 3, first It is first that the direction of snap-gauge 11 is corresponding with the sliding slot at 3 top of motion bar, it is then slowly put into the inside of motion bar 3, until pressure Block 1 is in contact with motion bar 3, and a hand pinches briquetting 1 at this time, and the portable dynamic pull rod 6 of another, the movement of pull rod 6, which drives, to be fixed The movement of ring 5 and movable plate 4, movable plate 4 drive connecting rod 7 to move, and connecting rod 7 pulls the compression reseting spring simultaneously of driver plate 10 9, it then realizes movable plate 4 and is disengaged with briquetting 1, rotate movable plate 4 at this time and rotate clockwise 90 degree, make movable plate 4 Corresponding with the groove at 1 top of briquetting, the rotation of movable plate 4 drives the rotation of connecting rod 7, cylinder, 8 driver plates 10 and snap-gauge 11 Turn so that snap-gauge 11 is in the bottom rotated ninety degrees of 3 sliding slot of motion bar, the turn trough and the card of motion bar 3 that snap-gauge 11 passes through motion bar 3 It connects, coordinates the use of convex block 13 and 3 card slot of motion bar so that the fixed effect of snap-gauge 11 is more preferable, then realizes the steady of the two Fixed connection.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims

1. a kind of switch core prevents the structure to get stuck, including briquetting (1), positive stop strip (2) and motion bar (3), the positive stop strip (2) it is fixedly connected on the front of briquetting (1), the motion bar (3) is fixedly mounted on the bottom of briquetting (1), it is characterised in that：Institute It states and opens up fluted at the top of briquetting (1), the inner wall of the groove is connected with movable plate (4)；

Thread groove is offered at the top of the movable plate (4), the inner thread of the thread groove is connected with fixed ring (5), described The inner wall of fixed ring (5) is fixedly connected with pull rod (6), and the bottom of the movable plate (4) is fixedly connected with connecting rod (7), described The inner wall of briquetting (1) top groove offers small through hole, the connecting rod (7) by the small through hole of briquetting (1) be flexibly connected Have a cylinder (8), the bottom of the briquetting (1) offers large through-hole, the cylinder (8) by the inner wall of briquetting (1) large through-hole with Briquetting (1) is flexibly connected, and the small through hole is connected to large through-hole, and driving groove, the transmission are offered at the top of the cylinder (8) The inner wall of slot is fixedly connected with resetting spring (9), and the bottom of the resetting spring (9) is fixedly connected with driver plate (10), described It is fixedly connected at the top of the driving groove and driver plate (10) that one end of connecting rod (7) passes through cylinder (8), the one of the cylinder (8) End is fixedly connected with snap-gauge (11), sliding slot is offered at the top of the motion bar (3), the snap-gauge (11) passes through motion bar (3) Sliding slot be flexibly connected with motion bar (3), the bottom of motion bar (3) sliding slot offers turn trough, and the snap-gauge (11) passes through The turn trough of motion bar (3) is clamped with motion bar (3), offers spring groove at the top of one end on the snap-gauge (11), institute The inner wall for stating spring groove is fixedly connected with support spring (12), and convex block is fixedly connected at the top of the support spring (12) (13), the inner wall of motion bar (3) turn trough offers card slot, card slot and activity of the convex block (13) by motion bar (3) Bar (3) is clamped, and the convex block (13) is flexibly connected by the spring groove of snap-gauge (11) with snap-gauge (11).

2. a kind of switch core according to claim 1 prevents the structure to get stuck, it is characterised in that：On the cylinder (8) Surface pivots in the middle part of it are connected with bearing block (14), and the outer wall of bearing block (14) is fixedly connected on the big of briquetting (1) In through-hole.

3. a kind of switch core according to claim 1 prevents the structure to get stuck, it is characterised in that：The movable plate (4) Top be rotatably connected to dustproof cover (15), and the size of dustproof cover (15) is adapted with the inner ring of fixed ring (5).

4. a kind of switch core according to claim 3 prevents the structure to get stuck, it is characterised in that：The dustproof cover (15) Bottom is connected with drop handle, and the back side of dustproof cover (15) offers drop handle accommodating groove.

5. a kind of switch core according to claim 1 prevents the structure to get stuck, it is characterised in that：The support spring (12) quantity is two, and two support springs (12) are distributed in snap-gauge using the longitudinal midline of snap-gauge (11) as axisymmetrical (11) in spring groove.