CN203218163U - Knife switch contact and single-pole knife switch - Google Patents
Knife switch contact and single-pole knife switch Download PDFInfo
- Publication number
- CN203218163U CN203218163U CN 201320157385 CN201320157385U CN203218163U CN 203218163 U CN203218163 U CN 203218163U CN 201320157385 CN201320157385 CN 201320157385 CN 201320157385 U CN201320157385 U CN 201320157385U CN 203218163 U CN203218163 U CN 203218163U
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- Prior art keywords
- disconnecting link
- connecting rod
- screw rod
- knife switch
- plate
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Abstract
The utility model discloses a knife switch contact and a single-pole knife switch. The knife switch contact comprises a connection board. A right-hand thread connection screw rod is arranged on one end of the connection board and a left-hand thread connection screw rod is arranged on the other end of the connection board. The right-hand thread connection screw rod is connected with a left-rotation connecting rod in a screwed manner and the left-hand thread connection screw rod is connected with a right-rotation connecting rod in the screwed manner. The left-rotation connecting rod and the right-rotation connecting rod are connected with a lifting rack by a connecting pin. The single-pole knife switch comprises the above knife switch contact. According to a conductor arrangement manner of the knife switch provided by the utility model, current-carrying capacity of the knife switch is greatly raised. Under a same material condition, the knife switch and the knife switch contact provided by the utility model are high in current-carrying capacity, production materials are saved, operation is relatively labor-saving and service life of products is relatively long.
Description
Technical field
The utility model belongs to power equipment, is specifically related to a kind of disconnecting link contact, and uses the disconnecting link that changes contact.
Background technology
Disconnecting link claims isolating switch again, is to use maximum a kind of electrical equipment in the high-voltage switch electric appliance, the operation principle of itself and relatively simple for structure, but because use amount is big, functional reliability requires high, and is all bigger to the influence of design, foundation and the safe operation of electric substation, power plant.After the main effect of disconnecting link is separating brake, set up reliable clearance for insulation, equipment or the circuit of needs maintenance separated with an obvious cut-off point with power supply, with the safety of assurance maintainer and equipment.The effect that acts in the electric equipment of disconnecting link is extremely important, for example, in the electric equipment maintenance process, when other electric equipments need overhaul, gets final product with the disconnecting link insulating power supply; Can only isolate with the upper level disconnecting link during disconnecting link maintenance, enlarge the power failure scope.
In realizing the utility model process, the inventor finds that there are the following problems at least in the prior art:
1, after disconnecting link closes a floodgate, be out of shape behind the long-term pressurized of switching-in spring, its pressure reduces behind the spring metal fatigue, and the ampacity of disconnecting link reduces, the disconnecting link heating; Also increase energy loss simultaneously, also reduced device security;
2, operating physical force increases with closing pressure.For ensureing the ampacity of disconnecting link, operating physical force was also very big when closing pressure was very big, and insulating porcelain piece is damaged.
Summary of the invention
Given this, the utility model purpose is, on the one hand, provides a kind of disconnecting link contact of high current-carrying capacity; A kind of disconnecting link of high current-carrying capacity is provided on the other hand.
For solving above technical problem, the technical scheme that the utility model provides is, a kind of disconnecting link contact is provided, and comprises connecting plate, and an end of connecting plate is provided with the plus thread connecting screw rod, and the other end of connecting plate is provided with the left-hand thread connecting screw rod; The plus thread connecting screw rod anticlockwise connecting rod that spins, the left-hand thread connecting screw rod right rotation connecting rod that spins; The anticlockwise connecting rod is connected with the pressure-raising frame by connecting pin with the right rotation connecting rod.
Further, described anticlockwise connecting rod one end is provided with adapter sleeve, and the other end is provided with connecting hole; The adapter sleeve inner hole wall is provided with plus thread.
Preferably, described connecting hole is the straight trough hole.
Further, described right rotation connecting rod only is that with the architectural difference of anticlockwise connecting rod hand of spiral is opposite.
Further, described pressure-raising frame comprises a location slide plate, and at least one bar connecting plate that is rotatably connected, and the bar connecting plate that is rotatably connected is provided with the lever attachment hole that is rotatably connected.
Further, be provided with guide part in the middle part of the described connecting plate.
Preferably, described guide part is arranged on the angular bisector of anticlockwise connecting rod and right rotation connecting rod.
Further, described pressure-raising frame and guide part are slidingly matched.
Preferably, described guide part is guide pad or gathering sill.
The utility model also provides a kind of one pole disconnecting link, and this disconnecting link comprises any one disconnecting link contact in the technique scheme, also comprises closing end plate seat and a stiff end panel seat together; Rise and to close the end plate seat and have orthogonal and close end plate seat base plate and rise and close end plate seat riser, rise and close end plate seat riser and be provided with a notch; The stiff end panel seat has mutual vertical fixing end plate seat base plate and stiff end panel seat riser, and stiff end panel seat riser is provided with a connecting screw rod fixing hole.
Compared with prior art, some technical schemes in the technique scheme have following advantage:
1, because this novel disconnecting link contact has adopted rotation connecting rod and connecting screw rod to be fastenedly connected the mode of plate, that is to say and adopted positive and negative screw bolt to come the mode of the dynamic and static contact of fastening disconnecting link, abandoned the mode that spring presses, after can not existing disconnecting link to close a floodgate, because being out of shape behind the long-term pressurized of switching-in spring, spring metal fatigue and the problem that causes the ampacity of disconnecting link to reduce.
2, the arrangement of ampacity and conductor has much relations, and the conductor arrangement mode of this novel described disconnecting link has improved the ampacity of disconnecting link greatly.Under the equal material, this novel one pole disconnecting link is 1.6 times of former disconnecting link ampacity, and namely ampacity reaches 1000A after the disconnecting link structural change of ampacity 630A.
3, this novel disconnecting link has adopted rotation connecting rod and connecting screw rod, has taken full advantage of lever principle and parallelogram law, make combined floodgates, operate when opening a sluice gate lighter.The disconnecting link of equal specification, the operating physical force of this novel one pole disconnecting link only former disconnecting link about 10%.
4, laborsaving because of this novel switch operation, avoided in the operating process accidental damage to insulating part, better protection insulating part.
5, this novel disconnecting link has used the pressure-raising frame, after the disconnecting link closure, to pressing down the pressure-raising frame, pressure-raising frame driven rotary connecting rod rotates around connecting screw rod, and rotation connecting rod and connecting screw rod are by being threaded, and along with the rotation connecting rod rotates, the adapter sleeve of rotation connecting rod compresses connecting plate gradually, the pressure-raising frame more moves downward, and dynamic and static contact is fitted more tight.After the disconnecting link closure, in the course of the work, because the pressure-raising frame itself has certain quality, under the gravity effect, the rotation connecting rod not only can resilience, but also can rotate slightly to former direction, make fit between the dynamic and static contact of disconnecting link tightr.
6, the disconnecting link of identical ampacity, this novel disconnecting link has significantly reduced the use of metal material, reaches about 40%, has saved production cost, has also saved energy resource consumption.
Description of drawings
Fig. 1 is the front view of a preferred embodiment of the utility model disconnecting link contact.
Fig. 2 is the front view of connecting plate in the preferred embodiment of the utility model disconnecting link contact.
Fig. 3 is the front view of plus thread connecting screw rod in the preferred embodiment of the utility model disconnecting link contact.
Fig. 4 is the front view of anticlockwise connecting rod in the preferred embodiment of the utility model disconnecting link contact.
Fig. 5 is the vertical view of Fig. 4, and broken section is arranged.
Fig. 6 is the front view of pressure-raising frame in the preferred embodiment of the utility model disconnecting link contact.
Fig. 7 is the right view of Fig. 6, and broken section is arranged.
Fig. 8 is the front view of a preferred embodiment of the utility model one pole disconnecting link.
Fig. 9 is A-A cutaway view among Fig. 8.
Embodiment
Describe below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1
Referring to Fig. 1 to Fig. 9.The described disconnecting link contact of present embodiment only is a technical scheme of the present utility model.This disconnecting link contact comprises former and later two connecting plates 10, and the left end of connecting plate 10 is provided with a square hole, and this square hole is used for fixedly plus thread connecting screw rod 11, and the two ends of plus thread connecting screw rod 11 are provided with plus thread.The right-hand member of connecting plate 10 is provided with a circular hole, and this circular hole is used for fixedly left-hand thread connecting screw rod 12, and the two ends of left-hand thread connecting screw rod 12 are provided with left-hand thread.That is to say that plus thread connecting screw rod 11 is opposite with hand of spiral on the left-hand thread connecting screw rod 12.Each connecting plate is provided with a guide part 16, and the described guide part of present embodiment is guide pad.The set-up mode of guide pad on connecting plate has multiple, can be fixed connection, and for example welding also can be to removably connect, and for example spins, buckle connects.Two guide pads are between two connecting plates, and the position is interlaced, constitute a quadrilateral frame between two guide pads that fix and two connecting plates, are used for limiting the location slide plate 151 of pressure-raising frame 15.
The two ends of plus thread connecting screw rod 11 are connected with an anticlockwise connecting rod 13 respectively, and the two ends of left-hand thread connecting screw rod 12 are connected with a right rotation connecting rod 14 respectively.Anticlockwise connecting rod 13 1 ends are provided with left adapter sleeve 131, and the other end is provided with left connecting hole 132; Left side adapter sleeve 131 inner hole walls are provided with plus thread, that is to say that this hand of spiral is identical with the hand of spiral of plus thread connecting screw rod 11.Left side connecting hole 132 is the straight trough hole, and the major diameter direction in this straight trough hole is identical with the length direction of anticlockwise connecting rod 13.Right rotation connecting rod 14 only is that with the architectural difference of anticlockwise connecting rod 13 hand of spiral is opposite.The diagonal intersection point of above-mentioned quadrilateral frame is on the angular bisector of anticlockwise connecting rod 13 and right rotation connecting rod 14.
The hand of spiral at plus thread connecting rod 11 two ends is identical, and the hand of spiral at left-hand thread connecting rod 12 two ends is identical, and the screw thread on the plus thread connecting rod 11 is opposite with hand of spiral on the left-hand thread connecting rod 12.Anticlockwise connecting rod 13 is connected with pressure-raising frame 15 by connecting pin with right rotation connecting rod 14, or rather, anticlockwise connecting rod 13, right rotation connecting rod 14, pressure-raising frame 15 are to intert by connecting pin to rotate the connecting hole on the connecting rod, the lever attachment hole 153 that is rotatably connected on the pressure-raising frame.Connecting pin is slidingly matched with the connecting hole that rotates on the connecting rod, with lever attachment hole 153 tight fits that are rotatably connected.
Above-mentioned pressure-raising frame 15 comprises location 151, two on a slide plate bar connecting plate 152 that is rotatably connected, and the bar connecting plate 152 that is rotatably connected is provided with the lever attachment hole 153 that is rotatably connected.Two bar connecting plates 152 that are rotatably connected lay respectively at the both sides, front and back of location slide plate 151, and fixedly connected by the crosspiece on top, and the overall shape at this position is m shape, as shown in Figure 7.For ease of operation, be provided with one in the upper end of pressure-raising frame 15 and put forth effort portion, present embodiment Fig. 7 shows a circulus, certainly, the main effect of putting forth effort portion is upwards to lift pressure-raising frame 15 or pushes pressure-raising frame 15 downwards, for realizing identical effect, the shape of the portion of putting forth effort is designed to T shape, handle shape etc. also is fine.
During operation, location slide plate 151 slides in above-mentioned quadrilateral frame, and its sliding trace like this from minute having utilized parallelogram law, makes that operating personnel's is firmly minimum all the time on the angular bisector of anticlockwise connecting rod 13 and right rotation connecting rod 14.
Above-mentioned plus thread connecting screw rod 11, left-hand thread connecting screw rod 12, anticlockwise connecting rod 13, right rotation connecting rod 14, pressure-raising frame 15, guide part 16 are all made with metallic conductor, preferably use red copper.
Embodiment 2
Referring to Fig. 8 and Fig. 9.The described one pole disconnecting link of present embodiment only is a technical scheme of the present utility model.This one pole disconnecting link comprises the disconnecting link contact described in above-described embodiment.In addition, comprise that also one is closed end plate seat 20 and a stiff end panel seat 30.Rise and to close end plate seat 20 and have orthogonal and close end plate seat base plate and rise and close end plate seat riser, rise and close end plate seat riser and be provided with a notch.Above-mentioned disconnecting link contact is the moving contact of present embodiment one pole disconnecting link, rises and closes the fixed contact that end plate seat riser is present embodiment one pole disconnecting link.Stiff end panel seat 30 has mutual vertical fixing end plate seat base plate and stiff end panel seat riser, and stiff end panel seat riser is provided with a connecting screw rod fixing hole.
Plus thread connecting screw rod 11 is fixed on the stiff end panel seat riser, and two connecting plates 10 lay respectively at stiff end panel seat riser both sides.After the one pole disconnecting link closes a floodgate, push pressure-raising frame 15 downwards, pressure-raising frame 15 drives left and right rotation connecting rod and rotates around the positive and negative screw rod that is threaded respectively, simultaneously, the adapter sleeve of two rotation connecting rods of the same side is drawn close to the centre, and exert pressure to connecting plate 10, make connecting plate only clamp stiff end panel seat riser and rise and close end plate seat riser.One pole disconnecting link after the closure, under pressure-raising frame 15 gravity, left and right rotation connecting rod not only can resilience, and continues descending trend in addition, make connecting plate 10 with rise close end plate seat riser just the dynamic and static contact of one pole disconnecting link engage closelyr.The ampacity that has fully guaranteed disconnecting link can not be affected.
Only be preferred implementation of the present utility model below, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with claim institute restricted portion.For those skilled in the art, in not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. a disconnecting link contact is characterized in that, comprises connecting plate (10), and an end of connecting plate (10) is provided with plus thread connecting screw rod (11), and the other end of connecting plate (10) is provided with left-hand thread connecting screw rod (12); Plus thread connecting screw rod (11) the anticlockwise connecting rod (13) that spins, left-hand thread connecting screw rod (12) the right rotation connecting rod (14) that spins; Anticlockwise connecting rod (13) is connected with pressure-raising frame (15) by connecting pin with right rotation connecting rod (14).
2. disconnecting link contact according to claim 1 is characterized in that, described anticlockwise connecting rod (13) one ends are provided with left adapter sleeve (131), and the other end is provided with left connecting hole (132); Left side adapter sleeve (131) inner hole wall is provided with plus thread.
3. disconnecting link contact according to claim 2 is characterized in that, described left connecting hole (132) is the straight trough hole.
4. according to claim 2 or 3 described disconnecting link contacts, it is characterized in that described right rotation connecting rod (14) only is that with the architectural difference of anticlockwise connecting rod (13) hand of spiral is opposite.
5. disconnecting link contact according to claim 1, it is characterized in that, described pressure-raising frame (15) comprises a location slide plate (151), and at least one bar connecting plate (152) that is rotatably connected, and the bar connecting plate (152) that is rotatably connected is provided with the lever attachment hole that is rotatably connected (153).
6. disconnecting link contact according to claim 5 is characterized in that, described connecting plate (10) middle part is provided with guide part (16).
7. disconnecting link contact according to claim 6 is characterized in that, described guide part (16) is arranged on the angular bisector of anticlockwise connecting rod (13) and right rotation connecting rod (14).
8. disconnecting link contact according to claim 6 is characterized in that, described pressure-raising frame (15) is slidingly matched with guide part (16).
9. disconnecting link contact according to claim 7 is characterized in that, described guide part (16) is guide pad or gathering sill.
10. an one pole disconnecting link that comprises the described disconnecting link contact of above arbitrary claim is characterized in that, also comprises closing end plate seat (20) and a stiff end panel seat (30) together; Rise and to close end plate seat (20) and have orthogonal and close end plate seat base plate and rise and close end plate seat riser, rise and close end plate seat riser and be provided with a notch; Stiff end panel seat (30) has mutual vertical fixing end plate seat base plate and stiff end panel seat riser, and stiff end panel seat riser is provided with a connecting screw rod fixing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157385 CN203218163U (en) | 2013-04-01 | 2013-04-01 | Knife switch contact and single-pole knife switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320157385 CN203218163U (en) | 2013-04-01 | 2013-04-01 | Knife switch contact and single-pole knife switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218163U true CN203218163U (en) | 2013-09-25 |
Family
ID=49207676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320157385 Expired - Fee Related CN203218163U (en) | 2013-04-01 | 2013-04-01 | Knife switch contact and single-pole knife switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218163U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219187A (en) * | 2013-04-01 | 2013-07-24 | 任雪松 | Knife switch contact and monopolar knife switch |
-
2013
- 2013-04-01 CN CN 201320157385 patent/CN203218163U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103219187A (en) * | 2013-04-01 | 2013-07-24 | 任雪松 | Knife switch contact and monopolar knife switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20140401 |