CN201845999U - Switch moving contact installation fixture - Google Patents
Switch moving contact installation fixture Download PDFInfo
- Publication number
- CN201845999U CN201845999U CN201020550821XU CN201020550821U CN201845999U CN 201845999 U CN201845999 U CN 201845999U CN 201020550821X U CN201020550821X U CN 201020550821XU CN 201020550821 U CN201020550821 U CN 201020550821U CN 201845999 U CN201845999 U CN 201845999U
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- upper clamp
- clamp
- lower clamp
- fixture body
- movable contact
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Abstract
The utility model belongs to the field of tooling fixtures, and particularly discloses a switch moving contact installation fixture used for a semi-insulating looped-net cabinet. The switch moving contact installation fixture comprises an upper fixture body and a lower fixture body that are movably connected with each other and have equal length L, a space compression mechanism and a resetting mechanism are arranged between the upper fixture body and the lower fixture body, two ends of the space compression mechanism are respectively connected with the upper fixture body and the lower fixture body, two ends of the resetting mechanism are respectively arranged at inner sides of the upper fixture body and the lower fixture body, the horizontal distance D from the position of the space compression mechanism to the connection position of the upper fixture body and the lower fixture body is no less than 0.5L, the end of the upper fixture body is provided with a notch, the end of the lower fixture body is provided with a concave pit, and the notch and the concave pit are proximately in one line in vertical direction. By adopting the utility model, a disk spring pad with strong elasticity or other elastic parts can be installed on a device similar to a bolt, the operation is convenient and fast, and the working efficiency is greatly improved.
Description
Technical field
The utility model belongs to the frock clamp field, especially a kind of switch movable contact sectional fixture that is used for semi-insulating ring main unit.
Background technology
Ring main unit is that one group of high voltage switchgear is contained in the steel sheet metal cabinet or makes the electric equipment of assembly unit compartment ring network power supply unit, on-load switch and fuse are adopted in its core, have simple in structure, volume is little, price is low, can improve power supply parameter and advantages such as performance and power supply safety.It is widely used in the power distribution station and box-type substation of load centers such as Urban House sub-district, skyscraper, large public building, factory and enterprise.In order to improve power supply reliability, make the user obtain power supply from both direction, usually power supply network is connected into annular.This supply power mode abbreviates ring network power supply as.Exchange in the 10KV distribution system at industrial and mining enterprises, residential quarters, harbour and skyscraper etc., because of load is held not quite, on-load switch or vacuum contactor control are adopted in its high tension loop usually, and are furnished with the high-tension fuse protection.This system adopts ring network power supply usually, use on the high-tension switch cabinet general custom and be called ring main unit.Ring main unit is except to the power supply of this distribution substation, its high voltage bus also will be by the through current (promptly through the electric current of this distribution substation bus to the power supply of adjacent distribution substation) of annular electric supply net, therefore the high voltage bus cross section of ring main unit will be selected in looped network through current sum according to the load current of this distribution substation, to guarantee not running overload of high voltage bus in service.
Particularly semi-insulating ring main unit is used more extensive in the ring main unit, being used for the moving contact of switch need being inserted ring main unit in semi-insulating ring main unit is electrically connected, the structure of moving contact is for as shown in Figure 1, mainly by latch a, spring pad b and the jump ring c that is used to block spring pad, latch a bottom is a sphere, jump ring places in the location hole d on the latch, because spring pad b all adopts the disk spring pad, the disk spring pad is to be designed for the lock washer that bolt is connected with screw.Be used for the connection of medium or high-strength bolt, screw.Bearing load is big and elasticity is extensive strong, and bolt tension force can bear owing to relaxing that following reason produces, so the disk spring pad can make the elastic reaction of the latch of screw increase several times, and it can replace common spring washer effectively.Just because of the elasticity of butterfly spring pad is very strong, so in the practical set process, be difficult to compress and block, sometimes also adopt pliers to clamp, but poor effect make disk spring damage easily with jump ring c, bigger less than expected effect.
Summary of the invention
The utility model is difficult to gland on latch and the shortcoming by the jump ring chucking at the spring pad that exists in the above-mentioned technology, a kind of switch movable contact sectional fixture is proposed, it can be stable spring pad is compressed after, like a cork jump ring is snapped in the location hole on the latch, overcome the weak point that exists in the above-mentioned technology.
The realization the technical solution of the utility model is as follows:
The switch movable contact sectional fixture, it comprises the upper clamp and the lower clamp of mutual flexible connection and equal in length, the length of upper clamp and lower clamp is L, be provided with spacing compressing mechanism and resetting device between upper clamp and the lower clamp, spacing compressing mechanism two ends are connected respectively with lower clamp with upper clamp, the resetting device two ends are located at upper clamp and lower clamp inboard respectively, the position at spacing compressing mechanism place is to the horizontal range D 〉=0.5L of upper clamp and lower clamp connection, the upper clamp end is provided with a recess, the lower clamp end is provided with a pit, recess and pit vertical to roughly at a straight line.
Upper clamp and lower clamp one end flexibly connect, the other end can contract under the effect of spacing compressing mechanism apart from clamping, the latch bottom is placed in the pit of lower clamp, latch is erected in the recess, the recess opening is less than spring pad, therefore just be subjected to the compression of stability and safety at the effect lower spring pad of spacing compressing mechanism, when upper clamp is lower than location hole, just jump ring is inserted in the location hole and position, so just installed, take off bearing pin this moment again, when the spacing compressing mechanism unclamps, upper clamp and lower clamp open under the effect of resetting device, thereby can work next time; Wherein the effect of recess is that latch cylinder end is placed in it, being convenient to compress spring pad makes location hole expose upper clamp and jump ring is inserted, pit is convenient to be latch sphere end location, prevents latch positioning in compression, recess and pit vertical to roughly at same straight line, in order to adapt to latch, make spring pad energy vertical compression, effective, compression speed is fast, the upper clamp notch end also is set to the sedimentation step, makes things convenient for the location hole of latch to expose upper clamp and make things convenient for jump ring to insert location hole; Length L/2 of the horizontal range D of upper clamp and lower clamp connection more than or equal to upper clamp or lower clamp are arrived in the position at spacing compressing mechanism place, be fulcrum with upper clamp and lower clamp junction like this, more light quick and safety when the spacing compressing mechanism compresses, wherein, D effect between 0.6L-0.9L is best, generally adopts D to equal 0.8L.
The link of described upper clamp and lower clamp is provided with loose slot, and lower clamp is provided with the movable block that matches with loose slot, flexibly connects by bearing pin between loose slot and the movable block.Making upper clamp and lower clamp clamp or open more flexiblely by hinged mode, is that axle is more firm with the bearing pin.
Described spacing compressing mechanism comprises bolts and nuts, and bolt passes upper clamp and lower clamp is connected with nut.By cooperating of nut and bolt, can regulate the distance of upper clamp and lower clamp end.
Described spacing compressing mechanism is cylinder or oil cylinder, and cylinder or oil cylinder are located on upper clamp or the lower clamp, and its cylinder bar is located on lower clamp or the upper clamp accordingly.The cylinder bar of cylinder or oil cylinder shrinks or stretches out and also can make upper clamp and lower clamp reach clamping or open effect, and uses cylinder or oil cylinder not to need manual operations, safer convenience, stable.
Described resetting device is a flexible restoring organ.Adopt flexible restoring organ that upper clamp and lower clamp are automatically reset, do not need other manual operations.
Described recess be shaped as the bottom for circular arc and both sides by the end of line extending to upper clamp.The bottom of recess circular arc can cooperate with the latch cylinder, the latch cylinder can't be moved radially in recess, the time upper clamp on the latch main body, move axially more smooth and easyly, the recess both sides connect circular arc-shaped bottom portion by line segment, the formation shape of dehiscing makes things convenient for latch to put into recess accurately.
Described pit is the pit of concave spherical surface.The pit of concave spherical surface fully cooperates with the sphere bottom of latch, and when making the compression of upper clamp and lower clamp, latch can more stable being placed on the lower clamp.
Described bolt is provided with swivel plate, and nut is provided with the Handheld Division of symmetry.The setting of swivel plate and Handheld Division makes operating personnel turn bolt, nut more easily.
Described flexible restoring organ is a back-moving spring.The back-moving spring elastic effect is good.
The angle of the extended line of described line segment is α, 30 °≤α≤45 °.The setting of this angle makes the latch can tension in recess, and latch can fully be contacted with the circular arc bottom of recess, but again can be not loose excessively when fully contacting, the stability of assurance latch on upper clamp.
The utility model solves very strong disk spring pad or other elastomeric elements of elastic force and is fit on the device of similar latch, and is convenient to operation, improved operating efficiency greatly.
Description of drawings
Fig. 1 is the structural representation of switch movable contact;
Fig. 2 is a structural representation of the present utility model;
Fig. 3 is that the A of Fig. 2 is to partial view;
Fig. 4 is the another kind of example of implementing of the present utility model.
Embodiment
As Fig. 2, shown in Figure 3, the switch movable contact sectional fixture, it comprises the upper clamp 1 and lower clamp 2 of mutual flexible connection and equal in length, upper clamp 1 is L with the length of lower clamp 2, be provided with spacing compressing mechanism and resetting device between upper clamp 1 and the lower clamp 2, spacing compressing mechanism two ends are connected respectively with lower clamp 2 with upper clamp 1, the resetting device two ends are located at upper clamp 1 and lower clamp 2 inboards respectively, the position at spacing compressing mechanism place is to the horizontal range D 〉=0.5L of upper clamp 1 with lower clamp 2 connections, upper clamp 1 end is provided with a recess 12, the lower clamp end is provided with a pit 22, recess 12 and pit 22 vertical to roughly at a straight line.
Upper clamp and lower clamp one end flexibly connect, the other end can contract under the effect of spacing compressing mechanism apart from clamping, the latch bottom is placed in the pit of lower clamp, latch is erected in the recess, the recess opening is less than spring pad, therefore just be subjected to the compression of stability and safety at the effect lower spring pad of spacing compressing mechanism, when upper clamp is lower than location hole, just jump ring is inserted in the location hole and position, so just installed, take off bearing pin this moment again, when the spacing compressing mechanism unclamps, upper clamp and lower clamp open under the effect of resetting device, thereby can work next time; Wherein the effect of recess is that latch cylinder end is placed in it, being convenient to compress spring pad makes location hole expose upper clamp and jump ring is inserted, pit is convenient to be latch sphere end location, prevents latch positioning in compression, recess and pit vertical to roughly at same straight line, in order to adapt to latch, make spring pad energy vertical compression, effective, compression speed is fast, the upper clamp notch end also is set to sedimentation step 13, makes things convenient for the location hole of latch to expose upper clamp and make things convenient for jump ring to insert location hole; Length L/2 of the horizontal range D of upper clamp and lower clamp connection more than or equal to upper clamp or lower clamp are arrived in the position at spacing compressing mechanism place, be fulcrum with upper clamp and lower clamp junction like this, more light quick and safety when the spacing compressing mechanism compresses, wherein, D effect between 0.6L-0.9L is best, generally adopts D to equal 0.8L.
Wherein, upper clamp 1 is provided with loose slot 11 with the link of lower clamp 2, and lower clamp 2 is provided with the movable block 21 that matches with loose slot 11, flexibly connects by bearing pin 3 between loose slot 11 and the movable block 21.Making upper clamp and lower clamp clamp or open more flexiblely by hinged mode, is that axle is more firm with the bearing pin.
Wherein, the spacing compressing mechanism comprises bolt 4 and nut 6, and bolt 4 passes upper clamp 1 and lower clamp 2 is connected with nut 6.By cooperating of nut and bolt, can regulate the distance of upper clamp and lower clamp end.
Perhaps as shown in Figure 4, wherein, the spacing compressing mechanism be cylinder 7 or oil cylinder 7 ', cylinder 7 or oil cylinder 7 ' be located on upper clamp or the lower clamp, its cylinder bar is located on lower clamp or the upper clamp accordingly.The cylinder bar of cylinder or oil cylinder shrinks or stretches out and also can make upper clamp and lower clamp reach clamping or open effect, and uses cylinder or oil cylinder not to need manual operations, safer convenience, stable.
Wherein, resetting device is a flexible restoring organ.Adopt flexible restoring organ that upper clamp and lower clamp are automatically reset, do not need other manual operations.
Wherein, recess 12 be shaped as the bottom 12a be circular arc and both sides extend to upper clamp 1 by line segment 12b and 12b ' end.The bottom of recess circular arc can cooperate with the latch cylinder, the latch cylinder can't be moved radially in recess, the time upper clamp on the latch main body, move axially more smooth and easyly, the recess both sides connect circular arc-shaped bottom portion by line segment, the formation shape of dehiscing makes things convenient for latch to put into recess accurately.
Wherein, pit 22 is the pit of concave spherical surface.The pit of concave spherical surface fully cooperates with the sphere bottom of latch, and when making the compression of upper clamp and lower clamp, latch can more stable being placed on the lower clamp.
Wherein, bolt 4 is provided with swivel plate 41, and nut 6 is provided with the Handheld Division 61 of symmetry.The setting of swivel plate and Handheld Division makes operating personnel turn bolt, nut more easily.
Wherein, flexible restoring organ is a back-moving spring 5.The back-moving spring elastic effect is good.
The angle of the extended line of its middle conductor 12b and 12b ' is α, 30 °≤α≤45 °.The setting of this angle makes the latch can tension in recess, and latch can fully contact with the circular arc bottom of recess, but again can be loose excessively when fully contacting, the stability of assurance latch on upper clamp, and generally the α employing is 35 ° or 40 °.Above true example be of the present utility model limited for example, it is any that what carry out on the utility model basis all is the scope of the utility model protection.
Claims (10)
1. switch movable contact sectional fixture, it is characterized in that: it comprises the upper clamp and the lower clamp of mutual flexible connection and equal in length, the length of upper clamp and lower clamp is L, be provided with spacing compressing mechanism and resetting device between upper clamp and the lower clamp, spacing compressing mechanism two ends are connected respectively with lower clamp with upper clamp, the resetting device two ends are located at upper clamp and lower clamp inboard respectively, the position at spacing compressing mechanism place is to the horizontal range D 〉=0.5L of upper clamp and lower clamp connection, the upper clamp end is provided with a recess, the lower clamp end is provided with a pit, recess and pit vertical to roughly at a straight line.
2. switch movable contact sectional fixture according to claim 1, it is characterized in that: the link of described upper clamp and lower clamp is provided with loose slot, lower clamp is provided with the movable block that matches with loose slot, flexibly connects by bearing pin between loose slot and the movable block.
3. switch movable contact sectional fixture according to claim 1 is characterized in that: described spacing compressing mechanism comprises bolts and nuts, and bolt passes upper clamp and lower clamp is connected with nut.
4. switch movable contact sectional fixture according to claim 1 is characterized in that: described spacing compressing mechanism is cylinder or oil cylinder, and cylinder or oil cylinder are located on upper clamp or the lower clamp, and its cylinder bar is located on lower clamp or the upper clamp accordingly.
5. switch movable contact sectional fixture according to claim 1 is characterized in that: described resetting device is a flexible restoring organ.
6. switch movable contact sectional fixture according to claim 1 is characterized in that: described recess be shaped as the bottom for circular arc and both sides by the end of line extending to upper clamp.
7. switch movable contact sectional fixture according to claim 1 is characterized in that: described pit is the pit of concave spherical surface.
8. switch movable contact sectional fixture according to claim 3 is characterized in that: described bolt is provided with swivel plate, and nut is provided with the Handheld Division of symmetry.
9. switch movable contact sectional fixture according to claim 5 is characterized in that: described flexible restoring organ is a back-moving spring.
10. switch movable contact sectional fixture according to claim 6 is characterized in that: the angle of the extended line of described line segment is α, 30 °≤α≤45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020550821XU CN201845999U (en) | 2010-09-29 | 2010-09-29 | Switch moving contact installation fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020550821XU CN201845999U (en) | 2010-09-29 | 2010-09-29 | Switch moving contact installation fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201845999U true CN201845999U (en) | 2011-05-25 |
Family
ID=44040875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020550821XU Expired - Lifetime CN201845999U (en) | 2010-09-29 | 2010-09-29 | Switch moving contact installation fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201845999U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005702A (en) * | 2010-09-29 | 2011-04-06 | 常州市德春电器有限公司 | Mounting clamp for switch moving contact |
| CN105058860A (en) * | 2015-05-28 | 2015-11-18 | 苏州市华宁机械制造有限公司 | Work fixture |
| CN111529327A (en) * | 2020-04-02 | 2020-08-14 | 安徽医科大学第二附属医院 | Muscle spasm reliever and method of use thereof |
-
2010
- 2010-09-29 CN CN201020550821XU patent/CN201845999U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005702A (en) * | 2010-09-29 | 2011-04-06 | 常州市德春电器有限公司 | Mounting clamp for switch moving contact |
| CN102005702B (en) * | 2010-09-29 | 2012-09-19 | 常州市德春电器有限公司 | Mounting clamp for switch moving contact |
| CN105058860A (en) * | 2015-05-28 | 2015-11-18 | 苏州市华宁机械制造有限公司 | Work fixture |
| CN111529327A (en) * | 2020-04-02 | 2020-08-14 | 安徽医科大学第二附属医院 | Muscle spasm reliever and method of use thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20120919 |