A kind of automatic safe take-up pulley
Technical field
The present invention relates to a kind of take-up pulley, particularly a kind of automatic safe take-up pulley, belongs to power domain.
Background technology
In projects is built, some haywires of frequent needs, general is all the cable utilizing outside to cover soft rubber, but, these cables are once there be the words of certain distance, cable is usually know to can not find main threads in use, resemble a pair tangled skein of jute, use and bother very much, only just need to spend long time in combing cable, the working efficiency seriously had influence on, need after cable practicality to continue to get back, same cost suitable considerable time, although make end-of-job tidy away cable neat fold come, but, the time using cable to next time is dissimilar, intermediate demand constantly moves, particularly some temporary construction building sites, there is no regular warehouse, let alone put shelf, through the cable repeatedly moved, original coiling order can be destroyed, next time is still difficult to launch smoothly when using, how just can prevent this situation generation being unfavorable for work, improve working efficiency, it is the thing that workmen is concerned about.
Summary of the invention
For in work progress, the bracing wire that interim cable laying brings is smooth, the problem such as to take a long time, the invention provides a kind of automatic safe take-up pulley, object is opened by cable laying as early as possible, accepts at short notice as early as possible, and can not affect and use next time.
Technical scheme of the present invention is: a kind of automatic safe take-up pulley, comprise center shaft, described center shaft is provided with screw thread, center shaft is arranged wired wheel, line wheel is provided with cylindrical central sleeve, center shaft arranges in the cylindrical central sleeve of online wheel, center shaft two end supports is on support, the midway location of center shaft is provided with going barrel, one end of clockwork spring is connected with center shaft, the other end connects on online wheel, line wheel is wound with cable, line wheel is provided with dynamic contact, center shaft is provided with static contact, dynamic joint and static joint respectively and line take turns mutually insulated between center shaft, static contact connects external terminal, internal layer cable terminal is connected to dynamic contact from line wheel side, center shaft is provided with the holddown spring of dynamic contact and static contact, static contact is or/and dynamic contact is loop configuration, dynamic contact and static contact match, be positioned at the one or both sides of going barrel, described static contact is contact ring, dynamic contact is U-shaped copper bar, U-shaped copper bar is provided with connection terminal, internal layer cable terminal is connected to the connection terminal of U-shaped copper bar from line wheel, contact ring is connected with external terminal, described dynamic contact is contact ring, static contact is U-shaped copper bar, U-shaped copper bar is connected with center shaft, internal layer cable terminal is connected to contact ring from line wheel, U-shaped copper bar is connected with external terminal, described going barrel side is provided with stop nut, the two ends of going barrel and stop nut are symmetrically arranged with built-in electrical insulation sheet successively, holddown spring, external insulation sheet, U-shaped copper bar, contact ring, contact ring fixed plate, support round roller, over cap, described dynamic contact is U-shaped copper bar, static contact is contact ring, the internal layer cable terminal of cable is connected to from line wheel and is positioned at center shaft and winds up the one-sided U-shaped copper bar of box, contact ring contacts with U-shaped copper bar, described U-shaped copper bar is made up of the concentric contact of three mutually insulateds, described contact ring is provided with three-line, the concentric contact of three mutually insulateds contacts with the three-line on contact ring, contact ring three-line is connected with external terminal, described dynamic contact is contact ring, static contact is U-shaped copper bar, the internal layer end of cable is connected to center shaft from line wheel and winds up the one-sided contact ring of box, contact ring contacts with U-shaped copper bar and connects, described contact ring is provided with three-line, described U-shaped copper bar is made up of the concentric contact of three mutually insulateds, the concentric contact of three mutually insulateds contacts with the three-line on contact ring respectively, the concentric contact of three mutually insulateds is connected with external terminal, described support is connected with and pulls line roller, pull line roller and be positioned at line wheel side, cable and running roller Structure deformation when pulling line.
The good effect that the present invention has is, by line wheel is arranged on center shaft, can ensure that line wheel rotates centered by center shaft, center shaft arranges going barrel by taking turns online in inner sleeve and one end of going barrel is connected on center shaft, one end connects on online wheel in addition, the cable automatic rolling that can be wound around on online wheel winds up, logical wire-crossing wheel fixes dynamic contact, fixing and the static contact in center shaft mutually insulated ground on center shaft, by the rotation between a contact, also keep being interconnected with another one contact, ensure that the rotation that line is taken turns and conducting, specifically, by center shaft in online wheel sleeve arranges U-shaped copper bar contact and contact ring, using one of them as dynamic contact, be connected on line wheel, using another one as static contact, fix on center shaft, the cable terminal being pressed in cable lowermost layer can be worn wire-crossing wheel side is connected on dynamic contact, that is be connected to U-shaped copper bar contact or contact ring one of them on, by contacting of contact ring and U-shaped copper bar, the line of internal layer cable terminal can be drawn from static contact, that is can using the another one contact in U-shaped copper bar or contact ring as static contact, and the connection terminal arranged thereon, can On current in the cable, by contact ring is fixed on contact ring fixed plate, can make to insulate between contact ring and miscellaneous part, spring can be made to compress U-shaped copper bar all the time by arranging spring in U-shaped copper bar side, and U-shaped copper bar can be made to connect with remaining between contact ring to contact, electric wire in internal layer cable terminal can be connected to from center shaft both sides respectively as one of the U-shaped copper bar or contact ring of dynamic contact, and by the pressure of holddown spring, U-shaped copper bar is communicated with contact ring, connect with outside in another contact from the U-shaped copper bar or contact ring of the static contact of the both sides of line wheel, by arranging many circuits or by the concentric contact of three mutually insulateds, make many circuits on contact ring and the concentric contact of three mutually insulateds respectively, one-sided connection can be realized on contact ring.By utilizing the present invention, unidirectional electrical can be connected, also three-phase electricity can be connected, the automatic rotation that simultaneously can realize line wheel is wound around cable, can guarantee to use owing to make use of multiple insolator discs etc. at wiring position the safety being, particularly more convenient in operation of climbing to a higher point, according to highly automated folding and unfolding cable length of climbing to a higher point, can bring great convenience to workmen.
accompanying drawing explanation
Fig. 1 surface structure schematic diagram of the present invention.
STRUCTURE DECOMPOSITION figure in Fig. 2 S. A. of the present invention.
The contact ring schematic diagram that Fig. 3 threephase cable is one-sided.
Contact schematic diagram between Fig. 4 three-phase U-shaped copper bar and contact ring.
Detailed description of the invention
In order to better understand and carry out technical scheme of the present invention, provide some embodiments of the present invention at this, these embodiments, in order to better explain technical solutions according to the invention, are not formed any form restriction of the present invention.
Be described with regard to technical scheme of the present invention referring to Fig. 1-Fig. 4.In the invention, described center shaft 1 or 30 is provided with screw thread, center shaft 1 or 30 is arranged and wiredly takes turns 12, line wheel 12 is provided with cylindrical central sleeve, center shaft 1 or 30 arranges in the cylindrical central sleeve of online wheel 12, center shaft 1 or 30 two end supports is on support 28, the midway location of center shaft 1 or 30 is provided with going barrel 14, one end of clockwork spring is connected with the midway location of center shaft 1 or 30, the other end connects on online wheel 12, line wheel 12 is wound with cable 13, line wheel 12 is provided with dynamic contact, center shaft 1 or 30 is provided with static contact, dynamic joint and static joint respectively and line take turns mutually insulated between 12 and center shaft 1 or 30, static contact connects external terminal, static contact internal layer cable 13 end electric wire is taken turns 12 sides from line and is connected to dynamic contact, center shaft 1 or 30 is provided with the holddown spring (10 of dynamic contact and static contact, 17), static contact is or/and dynamic contact is loop configuration.
Line wheel 12 is fixedly connected with dynamic contact, center shaft is fixedly connected with static contact, dynamic contact or static contact can be arranged to a contact also can be placed in contact ring (6, 20), below in an example, all for connecting U-shaped copper bar (8 with dynamic contact, 19), static contact is that contact ring is described, in like manner, also can using dynamic contact as connection contact ring (6, 20), static contact is as U-shaped copper bar (8, 19) use, just be not described in detail at this, technical personnel of the same trade can be replaced accordingly according to design of the present invention.
As contact below in an example using U-shaped copper bar (8,19), contact ring is described as contact ring (6,20), in the middle of actual practical use, also can using U-shaped copper bar (8,19) as contact ring 6,20), used as contact by contact ring (6,20), this using method also belongs to technical scheme scope of the present invention.
Embodiment 1
Fig. 1 is surface structure schematic diagram of the present invention.Online wheel 13 is arranged on support 28, and the front end of support 28 is provided with and pulls line roller 33, is pulling in line process, can alleviate friction, line wheel midway location going barrel 14 is set, be provided with clockwork spring in going barrel 14, can cable use terminate after automatic drawing back.
Fig. 2 is the STRUCTURE DECOMPOSITION figure in S. A. of the present invention, figure center line wheel about 12 two-part parts is on the online center shaft 1 or 30 of taking turns the cylindrical central sleeve inside of 12 of assembling in fact.Fixing going barrel 14 is positioned at the midway location of line wheel, fixing going barrel 14 right-hand member is provided with a caging bolt 15, other parts left and right two parts are symmetrical arranged, here gathers between two about all parts, is numbered left part above in its bracket, after label be the parts on the right side.What midway location was arranged is going barrel 14, clockwork spring is provided with in going barrel 14, play the dynamic action of automatic winding cable, one end of clockwork spring is fixedly connected with on center shaft, the other end and line are taken turns 12 and are fixed together, be symmetrically arranged with respectively near going barrel and both sides, limited screw two ends: built-in electrical insulation sheet (11, 16), holddown spring (10, 17), external insulation sheet (9, 18), U-shaped copper bar (8, 19), splicing ear (7, 25), contact ring (6, 20), contact ring fixed plate (5, 21), support round roller (4, 22), over cap (3, 23), block nut (2, 24), axle (1, 30).
Online wheel cylindrical central sleeve offers two keyways, the U-shaped copper bar upper and lower two ends being greater than cylindrical central sleeve internal diameter are set in keyway, U-shaped copper bar is rotated along with line wheel as dynamic contact, between U-shaped copper bar and center shaft, is provided with gap, can around central axis.If two-phase power supply, two lines of described cable 13 internal layer cable one end are drawn from the both sides of line wheel 13 respectively, are the embodiment of two-phase cable in fig. 2, and the internal layer end of two-phase cable is drawn from the both sides of line wheel 13 respectively, and the terminals of both sides are respectively 26, 29, interior side terminal (26, 29) the U-shaped copper bar (8 of both sides is connected to, 19), on, 12 and U-shaped copper bar (8 is taken turns in order to make line, 19) rotate together, copper bar is absorbed in line and takes turns in the keyway of 12 inner circumferentials, at U-shaped copper bar (8, 19) inner side is provided with holddown spring (10 respectively, 17), holddown spring (10, 17) the left and right sides is provided with built-in electrical insulation sheet (11 respectively, 16), external insulation sheet (9, 18) U-shaped copper bar (8, is made, 19) insulate, U-shaped copper bar (8, 19) at holddown spring (10, 17), under effect, rotary course remains and the contact ring (6 of outside as static contact, 20) contact, contact ring (6, 20) both sides arranged outside has contact ring fixed plate (5, 21), by contact ring (6, 20), this fixed plate is Ins. ulative material, generally uses plastic material, supports round roller (4, 22) serve the effect of bearing, support round roller (4, 22) 13 center shaft sleeve inner circumferential wipe contacts taken turns by periphery and line.
By line wheel 12 is arranged on center shaft 1 or 30, can ensure that line wheel 12 rotates with center shaft 1 or 30, by to take turns online in inner sleeve center shaft 1 or on going barrel 14 is set and one end of going barrel 14 is connected on center shaft 1 or 30, other one end of clockwork spring is fixedly connected with on online wheel 12, cable 13 automatic rolling be wound around on online wheel 12 can be wound up, by taking turns 12 sleeve internal fixtion U-shaped copper bars (8 online, 19), at the fixing contact ring (6 of center shaft 1 or 30, 20), by U-shaped copper bar (8, 19) line wheel 12 is fixed on as dynamic contact, contact ring (6, 20) fixing on center shaft as static contact, the two-phase cable end electric wire (26 of cable 13 lowermost layer can be pressed in, 29) wear wire-crossing wheel 12 both sides and be connected respectively to U-shaped copper bar (8, 19) on, U-shaped copper bar (8, 19) with contact ring (6, 20) contact, and at contact ring (6, 20) wire is connected by external terminal or joint on, bottom cable and wire can be drawn out to outside, the two ends realizing cable all with ft connection, can On current, the rotation that line is taken turns can be ensured again.
Embodiment 2:
What show in embodiment 1 is the two ends that two-phase power supply is separately positioned on line wheel 13, in fact, also all can be arranged on one-sided by cable terminal inside cable.Difference is, contact ring arranges multiple connector lug, multiple wiring circle.Certainly, also the connection terminal of threephase cable can be connected to both sides.
Fig. 3 is the one-sided contact ring schematic diagram of multi-phase cable.Contact ring (6 or 20) is provided with annular point cantact wire, is connected respectively at the triple line N of cable, L, E.
Fig. 4 is the contact schematic diagram between three-phase U-shaped copper bar and contact ring, be connected on three U-shaped copper bars of one-sided setting at three phase line, need the concentric contact that three mutually insulateds are set, be respectively in the present embodiment: copper bar one 8a or 19a, copper bar two 8b or 19b, copper bar three 8c or 19c tri-copper bars, utilize insulation spacer 32 to keep apart between copper bar, prevent short circuit between three phase circuit.Three U-shaped copper bars are provided with contact terminal, under the effect of holddown spring, respectively with contact ring (6 or 20) be provided with annular point cantact wire be connected, three contact rings are respectively arranged with N, L, E phase terminal of three-phase electricity, are connected with external source end.
By being provided as the contact ring (6 of static contact, 20), can by internal layer triple line cable-end 26, 29, 27 are connected to copper bar one 8a or 19a, copper bar two 8b or 19b, on copper bar three 8c or 19c tri-U-shaped copper bars, by U-shaped copper bar (8, 19) the upper connection terminal (7 arranged, 25) on, can in cable 13 On current, by contact ring (6, 20) side arranges insolator disc can make contact ring (6, 20) and external insulation, by U-shaped copper bar (8, 19) side arranges spring (10, 17) spring (10 can be made, 17) three U-shaped copper bars (8 are compressed all the time, , and U copper bar (8 can be made 19), 19) with contact ring (6, 20) remain between that contact connects, the electric wire in internal layer cable terminal can be connected to contact ring (6 from center shaft (1 or 30) both sides respectively, 20) on, and from contact ring (6, 20) U-shaped copper bar and copper bar one 8a or 19a is connected to, copper bar two 8b or 19b, copper bar three 8c or 19c tri-U-shaped copper bars, can switch on power from the both sides of line wheel, by arranging many circuits on contact ring, that is: circuit one 26a, circuit two 29a, circuit three 27a, and multiple U-shaped copper bar of mutually not conducting and copper bar one 8a or 19a, copper bar two 8b or 19b, copper bar three 8c or 19c are stacked up, respectively with many circuits on contact ring namely: circuit one 26a, circuit two 29a, circuit three 27a, contact connects, and can realize one-sided connection.By utilizing the present invention, unidirectional electrical can be connected, also three-phase electricity (N, L, E) can be connected, the automatic rotation that simultaneously can realize line wheel 12 is wound around cable 13, can guarantee to use owing to make use of multiple insolator discs etc. at wiring position the safety being, particularly more convenient in operation of climbing to a higher point, according to highly automated folding and unfolding cable length of climbing to a higher point, can bring great convenience to workmen.
After describing various specific embodiment of the present invention above in detail, those of ordinary skill in the art should be well understood to, according to the various common practise of this area, can carry out various equivalent variations, equivalent replacement according to thinking of the present invention or simply revise, these all should belong to the scope of technical solution of the present invention.