Adapter for track power supply

Abstract

The utility model discloses an adapter used for a track power supply, comprising a socket housing and a back plugging part thereof, the plugging part is provided with double accommodation grooves, a pair of Y-shaped conductive arm assemblies is arranged in the socket housing, and conductive contacts are hinged between the two conductive arm assemblies to form conductive connection. A swing arm at one end of the conductive arm extends into the containing groove, the socket shell is connected with the rotating ring in a sleeved mode and extends out of an extrusion arm, and the extrusion arm can move along a V-shaped sliding face at the other end of the conductive arm assembly. And when the rotating ring rotates, the extrusion arms slide along the V-shaped sliding surfaces to drive the two conductive arms to swing up and down, so that the conductive arm assembly is unfolded from the storage groove and is in contact conduction with a conductive strip on the track power supply. According to the utility model, the elastic pressure compensation of the contact point is realized through the elastic pushing and overturning structure of the Y-shaped conductive arm in combination with the linkage of the rotating ring, and the risk of poor contact of the adapter is eliminated. And meanwhile, the rotating ring is used for unfolding the conductive arm and the anti-pulling assembly to form a dual-anti-pulling structure, so that physical locking and stable conduction are realized, and safe and reliable electrical connection is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of electrical connection equipment especially relates to an adapter for track power supply. BACKGROUND

[0002] With the development of modern electrical equipment diversification and the improvement of space layout flexibility demand, the traditional fixed power socket gradually exposes the problems such as poor expansibility, wiring redundancy and safety hidden trouble, especially in office, home and industrial scene, users often face the pain points such as repeated plugging and unplugging due to equipment position adjustment, cable mess caused by concentrated power supply of multiple appliances, and insufficient plugging stability when high-power equipment is accessed. The track power supply system emerges as the times require, which realizes the free positioning and expansion of the power supply node along the track through the combination design of long strip conductive track and slidable adapter. At the same time, the demand of smart home for plug and play and seamless power supply of electrical appliances further promotes the evolution of track socket to compactness, safety and intuitive operation, prompting the adapter to integrate plugging positioning, conductive switching and mechanical linkage functions in limited space, forming a new electrical connection scheme with power supply stability and user experience.

[0003] The adapter of the traditional track power supply system mostly adopts the contact power taking mode of conductive arm along the sliding direction or cross rotating and expanding conductive arm and embedded conductive strip in the track. When the adapter is inserted into the adapter slot of the track, the expansion action of the conductive arm is blocked and lacks visual feedback mechanism, so it is difficult for the operator to confirm whether the contact piece is completely expanded in place, which may cause virtual contact of the contact surface. When the external device plug is swung by external force (such as device movement or cable dragging), the adapter body is easy to displace, causing the contact separation between the conductive arm and the conductive strip, thereby causing intermittent power failure.

[0004] In addition, in terms of mechanical locking mechanism reliability, the existing anti-pulling scheme mostly relies on one-sided anti-pulling structure, which has double hidden dangers: when the adapter is subjected to lateral tension (typical scene is accidental pulling of device cable), the buckle of the anti-pulling structure and the track slot wall produce asymmetric friction, causing unbalanced contact pressure distribution, which seriously affects the connection stability. On the other hand, the existing anti-pulling structure mostly adopts torsional spring element to keep reset, which not only has high requirements on production and assembly precision, but also has problems such as high operation complexity and low reset success rate in maintenance operation.

[0005] Therefore, the existing adapter of the track power supply system needs to be optimized and improved UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an adapter for track power supply with a conductive arm assembly with redundant elasticity, integrated double mechanical anti-pulling locking structure to improve conductive reliability, and telescopic elastic grounding contact structure.

[0007] To achieve the above object, the utility model discloses the following scheme: an adapter for track power supply, comprising:

[0008] The socket shell with cavity is provided with a jack on the front face;

[0009] The plate-shaped plug-in part is connected to the back of the socket shell and is used for being inserted into the adapter slot of the track power supply;

[0010] The interval arrangement storage groove is penetrated through the plug-in part from top to bottom along the direction of inserting the adapter slot and is communicated with the inside of the socket shell;

[0011] The conductive contact piece assembly is installed in the socket shell, and the contact end corresponds to the jack position;

[0012] The conductive arm assembly is symmetrically hinged in the socket shell, and the end of each conductive arm assembly away from the hinged position is provided with a conductive contact point capable of being electrically connected with the conductive contact piece assembly, and the end with the conductive contact point extends into the corresponding storage groove, and in the non-working state, it is withdrawn in the storage groove;

[0013] The V-shaped sliding surface is arranged at the other end of each conductive arm assembly away from the conductive contact point;

[0014] The rotating ring is rotatably sleeved on the socket shell, and a pair of extrusion arms are extended from the inner circumference of the rotating ring and are slidably matched with the corresponding V-shaped sliding surfaces;

[0015] The end of the extrusion arm is provided with an elastic compensation member capable of being closely attached to the surface of the V-shaped sliding surface, and when the rotating ring is rotated, the elastic compensation member alternately slides along the two inclined wall surfaces of the V-shaped sliding surface, drives the two conductive arm assemblies to swing up and down respectively around the hinged shaft, and makes the two conductive contact points respectively unfold from the respective storage grooves and contact and conduct with the positive and negative electrode conductive strips of the track power supply;

[0016] The anti-pulling assembly is symmetrically arranged on the plug-in part and is used for locking the plug-in part in the adapter slot of the track power supply.

[0017] In the above scheme, the rotating ring makes the two conductive arm assemblies respectively realize the up and down lifting and opening action, effectively contacts the positive and negative electrode conductive strips of the track power supply and realizes the circuit conduction, and even if the adapter swings, the effective stability of the contact can be ensured, and the anti-vibration ability and the anti-pulling ability of the adapter are effectively enhanced by the two anti-pulling assemblies.

[0018] As the utility model discloses preferred place case, the contact piece installation groove is fixed in the socket shell, the conductive contact piece assembly includes the positive pole conductive contact piece and the negative pole conductive contact piece respectively installed in the contact piece installation groove, and the positive pole conductive contact piece and the negative pole conductive contact piece correspond to the positive pole and the negative pole plug pin position of jack respectively,

[0019] The ground conductive contact piece assembly is installed in the contact piece installation groove between the positive pole conductive contact piece and the negative pole conductive contact piece, and corresponds to the ground pin position of jack,

[0020] The conductive rod is inserted in the hinged shaft of each conductive arm assembly and is conductively connected with the conductive contact point through the conductive connecting piece embedded in the conductive arm assembly, and the other end of the conductive rod is electrically connected with the corresponding positive pole conductive contact piece and negative pole conductive contact piece respectively. The conductive arm assembly is wrapped with the conductive connecting piece by insulating material, and only the conductive contact point is exposed for contact and conduction, which effectively enhances the situation of leakage and short circuit caused by touching the track metal part.

[0021] As the utility model discloses preferred place case, the ground wire conductive contact piece is movably inserted in the plug-in part, one end of the ground wire conductive contact piece is electrically connected with the ground conductive contact piece assembly, the other end of the ground wire conductive contact piece extends out of the outer wall of the plug-in part and can contact the ground wire conductive part in the track power supply to form a ground path. The ground wire conductive contact piece is movably inserted in the plug-in part, and when the end part is pressed by the ground wire conductive part in the track power supply, the ground wire conductive contact piece can flexibly retract backward, and the elastic contact mode overcomes the ground attenuation and failure caused by material creep during dense installation.

[0022] As the utility model discloses further place case, the ground wire reset spring is arranged at the tail of the ground wire conductive contact piece, the front end of the ground wire reset spring abuts against the tail end of the ground wire conductive contact piece, the rear end of the ground wire reset spring abuts against the inner wall of the socket shell and applies elastic force to keep the ground wire conductive contact piece in the extended state. The ground wire reset spring can enhance the stretching and contracting capability of the ground wire conductive contact piece and prevent the ground wire conductive contact piece from failing to rebound after being pressed for a long time.

[0023] As the utility model discloses preferred place case, the conductive arm assembly is in the shape of "Y", each conductive arm assembly extends into the corresponding storage groove through the swing arm extending out, the conductive contact point and the conductive connecting piece are arranged on the swing arm respectively, the conductive rod is inserted in the three-prong intersection of the conductive arm assembly respectively, and one side of the positive pole conductive contact piece and the negative pole conductive contact piece respectively extends out the metal clamping end, and the metal clamping end clamps the corresponding conductive rod respectively. In the scheme, the conductive arm assembly in the shape of "Y" can more flexibly realize the activity of the cantilever plate in the socket shell. The connection mode between the conductive rod and the metal clamping end can fix the position of the conductive arm assembly on one hand and ensure that the circuit is conductive and the effect of the rotating shaft can also be realized on the other hand, thereby reducing the complexity of parts.

[0024] As the utility model discloses preferred place, the plug-in part is penetrated with the rotating block groove at interval, and the position corresponding rotating block groove is equipped with the axle hole that can be linked with rotating block groove respectively in the socket shell, the anti-pulling assembly includes:

[0025] The rotating head is provided with symmetrical letting plane and guide inclined plane on the surface respectively, and the two letting plane and two guide inclined plane are arranged in cross shape.

[0026] The rotating shaft is rotatably inserted in the axle hole, one end of the rotating shaft is connected with the rotating head, and the other end of the rotating shaft extends into the socket shell and is provided with protruding fixing lug on the outer wall.

[0027] The unlocking piece can move up and down in the socket shell, and the end portion is respectively abutted with the corresponding fixing lug;

[0028] The anti-pulling reset spring is abutted on the anchor point protruding in the socket shell on the side away from the end portion of the unlocking piece, and the other end is abutted on the anchor point protruding in the socket shell, for resetting again after the rotating shaft rotates, and the spring design reduces the assembly precision requirement compared with the torsional spring, which is convenient for assembly and subsequent maintenance operation.

[0029] The unlocking button is connected with the unlocking piece on one end, and the other end is movably inserted through the outer wall of the socket shell.

[0030] The unlocking piece is in the shape of arc semicircle body, the end portion of the unlocking piece can be respectively abutted with the fixing lug of the rotating shaft, and when the unlocking piece moves down, the fixing lug is driven to rotate by the end portion, so that the letting plane of the rotating head is separated from the locking state in the track power adapter slot. The symmetrical anti-pulling assembly and one-key unlocking design enhance the convenience of operation, and effectively enhance the vibration resistance and anti-pulling ability of the adapter.

[0031] As a further place of the utility model, the elastic compensation piece includes the spring groove in the shape of concave in the end portion of the extrusion arm, and the retractable reset spring is accommodated in the spring groove. The retractable head is installed in the spring groove, the head end of the retractable head protruding out of the spring groove is in the shape of round head, and the tail portion of the retractable head is abutted on the retractable reset spring to keep the head end of the retractable head abutted on the V-shaped sliding surface protruding out of the spring groove. Through the elastic pressure of the fourth reset spring on the retractable head, the pressure of the elastic contact on the V-shaped sliding surface can be self-compensated, the response speed is effectively guaranteed, and even if the position of the conductive contact is ablated, the contact surface can still be guaranteed not to appear virtual connection phenomenon.

[0032] As a further aspect of the present utility model, an upwardly protruding arched protrusion is arranged at the central recessed position of the V-shaped sliding surface, and the telescopic head slides over the arched protrusion when sliding on the V-shaped sliding surface. When the elastic telescopic telescopic head is operated by the user, each time the arched protrusion is crossed, the user will clearly feel the paragraph and the sound of the drop, and the operator can more easily confirm whether the swing arm is fully unfolded in place, and at the same time, it also prevents displacement of the extrusion arm due to vibration, accidental overturning of the conductive arm assembly, and power failure of the adapter.

[0033] As a further aspect of the present utility model, a safety door capable of closing or opening the jack is arranged between the inner wall of the socket shell inside the jack and the conductive contact piece assembly to prevent foreign matter from entering and avoid electric shock short circuit accidents.

[0034] As a preferred aspect of the present utility model, the safety door comprises a sliding support arranged between the conductive contact piece assembly and the inner wall of the front socket shell, a first safety door plate capable of sliding up and down on the sliding support, a clearance slot with an open bottom arranged at the center of the first safety door plate, side stop pieces corresponding to the positive and negative plug pin positions of the jack arranged on the first safety door plate on the left and right sides of the clearance slot, first extrusion inclined surfaces respectively arranged on the side stop pieces, a second safety door plate arranged in the clearance slot and having a top end abutting against the top wall of the clearance slot, the bottom of the second safety door plate extending out of the bottom of the clearance slot and abutting against a safety door return spring at the bottom end, a protruding abutment groove arranged on the sliding support, the bottom end of the safety door return spring abutting against the abutment groove, and a second extrusion inclined surface arranged on the front surface of the second safety door plate corresponding to the jack.

[0035] In summary, the present utility model has the following advantages over the prior art: the innovative "Y"-shaped conductive arm assembly drives the hinged flap structure by means of the rotating ring, forms elastic contact with the conductive strip in the track during adapter plug-in installation, and realizes self-adaptive compensation of contact pressure fluctuations by dynamic cooperation of the V-shaped sliding surface and the extrusion arm, thereby providing redundant continuous contact force and ensuring effective contact between the adapter and the track conductive part at all times. In addition, the arched protrusion at the center of the V-shaped sliding surface can clearly feedback power-on and power-off information to the user, preventing improper operation or excessive operation from damaging the adapter. Secondly, the symmetrical rotating head and one-key unlocking double-prevention pull-out locking combination design can achieve single-handed operation unlocking while maintaining high locking strength. Furthermore, the elastic grounding design of the telescopic contact piece developed for dense installation scenarios maintains stable grounding paths through the spring stress dispersion mechanism of the elastic sheet itself, effectively improving the performance of the adapter in terms of contact reliability, mechanical stability, grounding efficiency, and safety protection. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 It is a perspective view of the present utility model.

[0037] Figure 2 Figure 2 is a perspective view of the present application.

[0038] Figure 3 Figure 4 is a cross-sectional view of the present application.

[0039] Figure 4 Figure 6 is a first internal structure view of the present application.

[0040] Figure 5 Figure 8 is a first cross-sectional view of the present application mounted to a track housing, and an enlarged view of a local area in the figure.

[0041] Figure 6 Figure 10 is a second cross-sectional view of the present application mounted to a track housing, and an enlarged view of a local area in the figure.

[0042] Figure 7 Figure 12 is an exploded view of the present application.

[0043] Figure 8 Figure 14 is a second internal structure view of the present application.

[0044] Figure 9 Figure 16 is a third cross-sectional view of the present application mounted to a track housing, and an enlarged view of a local area in the figure.

[0045] Figure 10 Figure 18 is a third internal structure view of the present application.

[0046] Figure 11 Figure 20 is a fourth cross-sectional view of the present application mounted to a track housing.

[0047] Explanation of reference numerals: 1, track; 4, socket shell; 5, conductive contact piece assembly; 6, conductive arm assembly; 7, rotating ring; 8, ground conductive contact piece assembly; 9, anti-pulling assembly; 12, adapter slot; 13, positive electrode slot; 16, safety door; 17, sliding support; 18, first safety door plate; 19, second safety door plate; 21, positive electrode conductive strip; 22, negative electrode conductive strip; 40, shaft hole; 41, insertion hole; 42, insertion part; 43, storage groove; 44, anchor point; 50, contact piece mounting groove; 51, metal clamping end; 52, positive electrode conductive contact piece; 53, negative electrode conductive contact piece; 61, conductive rod; 62, swing arm; 63, V-shaped sliding surface; 64, arched convex point; 71, extrusion arm; 72, spring groove; 73, telescopic reset spring; 74, telescopic head; 81, ground wire conductive contact piece; 82, ground wire reset spring; 83, conductive extension piece; 90, rotating block groove; 92, unlocking piece; 93, unlocking button; 94, rotating head; 95, accommodation plane; 96, guide inclined surface; 97, rotating shaft; 98, fixing lug; 99, anti-pulling reset spring; 171, abutment groove; 181, accommodation groove; 182, side stop piece; 183, first extrusion inclined surface; 191, safety door reset spring; 192, second extrusion inclined surface; 621, connecting copper piece; 622, contact point. DETAILED DESCRIPTION

[0048] The following detailed description provides for a variety of different embodiments or examples for implementing the present application. Of course, these are merely examples and are not intended to be limiting. Additionally, like reference numerals can be used throughout the different exemplary embodiments and / or illustrations to refer to like elements or features. These like reference numerals are not intended to signify that the different embodiments or examples are the same element or feature.

[0049] Further, where spatially relative terms are used, such as "beneath", "below", "lower", "above", "upper", and the like, they are used with respect to the application as depicted in the drawings. The application can be rotated 90 degrees or other orientations in use or operation, and the spatially relative terms used herein interpreted accordingly. The terms "first", "second" and the like, do not denote any absolute or chronological importance, but are used as a nomenclature to distinguish one element from another. Thus, a "first" and / or "second" feature can include one or more such features.

[0050] The present application is further described by the following description and specific examples, in conjunction with the accompanying drawings: Figures 1 to 11The adapter for track power supply includes a socket housing 4 with a cavity, and a front face of the socket housing 4 is provided with a socket 41. A protruding plate-shaped plug-in part 42 is provided on a back of the socket housing 4, and is used for being inserted into an adapter slot 12 of a track power supply system, so that a width of the plug-in part 42 is slightly smaller than an opening width of the adapter slot 12. A receiving groove 43 penetrating in a plug-in direction is provided on the plug-in part 42 in a spaced manner, and the receiving groove 43 penetrates the plug-in part 42 and extends to an inside of the socket housing 4. A contact piece mounting groove 50 is fixed in the socket housing 4, and a conductive contact piece assembly 5 for contacting with a plug pin is respectively arranged in the contact piece mounting groove 50. The conductive contact piece assembly 5 is composed of a positive conductive contact piece 52, a negative conductive contact piece 53 and a ground conductive contact piece assembly 8. The positive conductive contact piece 52 and the negative conductive contact piece 53 correspond to positive and negative plug pin positions of the socket 41 respectively, and the ground conductive contact piece assembly 8 corresponds to a ground pin position of the socket 41. A conductive arm assembly 6 in a "Y" shape is respectively hinged on a side of the positive conductive contact piece 52 and the negative conductive contact piece 53 away from each other. A conductive rod 61 extending towards the adjacent positive conductive contact piece 52 and the negative conductive contact piece 53 is respectively arranged at a hinged shaft position of a three-prong intersection of each conductive arm assembly 6. A metal clamping end 51 capable of clamping the adjacent conductive rod 61 is respectively extended on the positive conductive contact piece 52 and the negative conductive contact piece 53. Each conductive arm assembly 6 has a swing arm 62 extending into the corresponding receiving groove 43. A connecting copper sheet 621 is embedded in the swing arm 62 and is electrically connected with the conductive rod 61. A contact point 622 is arranged on a part of the swing arm 62 extending out of the swing arm 62, and is used for contacting and electrically connecting with a contact surface of a conductive strip in a track 1. A V-shaped sliding surface 63 is arranged between two branches of the conductive arm assembly 6 away from the swing arm 62. An arched convex point 64 protruding upwards is arranged at a central recessed position of the V-shaped sliding surface 63. A rotating ring 7 is rotatably sleeved on the socket housing 4, and a pair of extrusion arms 71 extending inwards is arranged on the rotating ring 7. End portions of each extrusion arm 71 point to the corresponding V-shaped sliding surface 63. An elastic compensation member capable of closely contacting with a surface of the V-shaped sliding surface 63 is arranged at a distal end of the extrusion arm 71. When the rotating ring 7 is rotated, the elastic compensation member alternately slides along two inclined wall surfaces of the V-shaped sliding surface 63, and drives the two conductive arm assemblies 6 to oppositely swing around the hinged shaft as the center, so that the two conductive contact points 622 respectively unfold from the corresponding receiving grooves 43.

[0051] wherein, as Figure 4 and Figure 5 and Figure 7As shown in the figure, the elastic compensation member includes a spring groove 72 in the shape of a concave, which is arranged at the end of the pressing arm 71, and a retractable reset spring 73 is contained in the spring groove 72. A retractable head 74 is installed in the opening of the spring groove 72, and the head end of the retractable head 74 is in the shape of a round head. The tail of the retractable head 74 is against the retractable reset spring 73 to keep the head end of the retractable head 74 out of the spring groove 72. The head end of the retractable head 74 is against the V-shaped sliding surface 63. In the initial state, the swing arm 62 is parallel and contained in the containing groove 43. When the plug-in part 42 is inserted into the adapter slot 12, the rotating ring 7 is rotated and the retractable head 74 is slid from the V-shaped sliding surface 63 on one side of the arch-shaped convex point 64 to the V-shaped sliding surface 63 on the other side of the arch-shaped convex point 64. Then, the swing arm 62 is raised from the containing groove 43 and contacts the contact surface of the positive and negative conductive strips 21 and 22 in the track 1.

[0052] In addition, as shown in Figures 1 to 4 and Figures 6 to 10 In order to ensure the continuous effectiveness of grounding, a ground conductive contact piece 81 is movably arranged in the center of the plug-in part 42. One end of the ground conductive contact piece 81 is extended into the socket shell 4 and is riveted with the conductive extension piece 83 on the ground conductive contact piece assembly 8, and the other end is extended and movably arranged through the outer wall of the plug-in part 42 and contacts the ground conductive part in the track power supply to form a ground path. On this basis, in order to prevent the ground conductive contact piece 81 from not rebounding due to the fatigue of the conductive extension piece 83 after frequent pressing, a ground reset spring 82 is arranged at the tail of the ground conductive contact piece 81. The front end of the ground reset spring 82 is against the ground conductive contact piece 81, and the rear end is against the inner wall of the socket shell 4 and applies a force to keep the ground conductive contact piece 81 extended.

[0053] In order to prevent the adapter from being mistakenly pulled out by external force after the plug-in part 42 is inserted into the adapter slot 12, as shown in Figures 1 to 3 and Figures 8 to 11 A rotating block groove 90 is symmetrically arranged through the plug-in part 42, and an axle hole 40 corresponding to the rotating block groove 90 is arranged in the socket shell 4. The anti-pulling assembly 9 is rotatably installed in the rotating block groove 90 to lock the plug-in part 42 in the adapter slot 12.

[0054] Specifically, the anti-extraction assembly 9 in the embodiment includes a rotating head 94, which has a diameter greater than the width of the rotating block slot 90 and the adapter slot 12. Thus, when the rotating head 94 passes through the adapter slot 12, the tail end of the rotating head 94 can abut against the inner side wall of the adapter slot 12. The tail end of the rotating head 94 is connected with a rotating shaft 97. One end of the rotating shaft 97 is connected with the rotating head 94, and the other end of the rotating shaft 97 extends into the socket housing 4 and is provided with a protruding fixing lug 98 on the outer wall. In order to enable the rotating head 94 to pass through the adapter slot 12, the upper and lower surfaces of the rotating head 94 are respectively provided with a clearance plane 95. The distance between the two clearance planes 95 is less than the width of the adapter slot 12. In the initial state, the two clearance planes 95 are perpendicular to each other. The opposite two clearance planes 95 of the rotating head 94 are respectively provided with a guide inclined surface 96. When the rotating head 94 contacts the edge of the adapter slot 12, the two guide inclined surfaces 96 are pressed and the rotating head 94 is rotated by 90 degrees. After the two clearance planes 95 are parallel to each other, the rotating head 94 can pass through the adapter slot 12. In order to enable the rotating head 94 to rotate again after passing through the adapter slot 12 to be clamped in the adapter slot 12, the fixing lug 98 is pressed on one side by an anti-extraction reset spring 99, and the other end of the anti-extraction reset spring 99 abuts against the protruding anchor point 44 in the socket housing 4. During the process of rotating the rotating head 94 to make the two clearance planes 95 parallel to each other, the anti-extraction reset spring 99 is compressed. When the rotating head 94 completely passes through the adapter slot 12, the anti-extraction reset spring 99 is deformed and reset to push the fixing lug 98 and the rotating head 94 to return to the initial state. When the adapter needs to be pulled out, the rotating head 94 needs to be rotated again. Therefore, the socket housing 4 is provided with a semicircular unlocking member 92. The two ends of the unlocking member 92 extend to the side away from the fixing lug 98 of the anti-extraction reset spring 99 and abut against each other. The unlocking member 92 is provided with an unlocking button 93 which can be driven to slide downward in the socket housing 4 by pressing. The operating end of the unlocking button 93 extends out of the socket housing 4. When the unlocking button 93 is pressed to drive the unlocking member 92 to move downward, the two ends of the unlocking member 92 respectively press and push the corresponding fixing lugs 98, so that the rotating shaft 97 drives the rotating head 94 to rotate. The two clearance planes 95 are parallel to each other again to release the locking state of the anti-extraction assembly 9. After rotating the rotating ring 7 to collect the two unfolded swing arms 62 into the storage slot 43, the adapter can be pulled out and detached from the adapter slot 12.

[0055] In addition, as Figure 3 , Figure 6 and Figure 7As shown in the figure, the safety door 16 is provided between the inner wall of the socket shell 4 and the conductive contact assembly 5, and can close or open the jack 41. The safety door 16 comprises a sliding support 17 provided between the conductive contact assembly 5 and the inner wall of the socket shell 4, a first safety door plate 18 slidably provided on the sliding support 17, a notch 181 with an opening provided in the center of the first safety door plate 18, side blocking pieces 182 provided on the first safety door plate 18 on both sides of the notch 181, corresponding to the positions of the positive and negative pins of the jack 41, the side blocking pieces 182 are respectively provided with first extrusion inclined surfaces 183, a second safety door plate 19 provided in the notch 181 and abutting against the top wall of the notch 181, the bottom of the second safety door plate 19 extends out of the bottom of the notch 181 and is provided with a safety door return spring 191 abutting against the bottom end, a protruding abutting groove 171 provided on the sliding support 17, the bottom end of the safety door return spring 191 abutting against the abutting groove 171, and a second extrusion inclined surface 192 provided on the second safety door plate 19, corresponding to the front of the jack 41. When the pins of the plug are inserted into the jack 41, the pins will extrude the first extrusion inclined surfaces 183 and the second extrusion inclined surfaces 192 to drive the first safety door plate 18 and the second safety door plate 19 to move downward, and the jack 41 is exposed. It should be noted that the sliding support 17 is also provided with a through hole corresponding to the jack 41.

[0056] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An adapter for a track power supply, characterized in that, It includes: Socket shell (4) with cavity, its front is provided with jack (41); Plate-shaped plug-in part (42) is connected to the back of the socket shell (4), used for inserting into the adapter slot of the track power supply; The interval is arranged in the storage groove (43), and the storage groove (43) is penetrated from top to bottom along the direction of inserting into the adapter slot, and is communicated with the inside of the socket shell (4); The conductive contact assembly (5) is installed in the socket shell (4), and the contact end corresponds to the position of the jack (41); The conductive arm assembly (6) is symmetrically hinged in the socket shell (4), and the end of each conductive arm assembly (6) away from the hinged position is provided with a conductive contact point (622) capable of being electrically connected with the conductive contact assembly (5), and the end with the conductive contact point (622) extends into the corresponding storage groove (43), which is withdrawn in the storage groove (43) in the non-working state; V-shaped sliding surface (63) is arranged at the other end of each conductive arm assembly (6) away from the conductive contact point (622); Rotary ring (7) is rotatably sleeved on the socket shell (4), and a pair of extrusion arms (71) are extended from the inner circumference of the rotary ring (7) and are respectively in sliding fit with the corresponding V-shaped sliding surface (63); The end of the extrusion arm (71) is provided with an elastic compensation member capable of keeping close contact with the surface of the V-shaped sliding surface (63), and when the rotary ring (7) is rotated, the elastic compensation member slides along the two inclined wall surfaces of the V-shaped sliding surface (63) alternately, drives the two conductive arm assemblies (6) to swing oppositely with the hinged shaft as the center, and makes the two conductive contact points (622) respectively contact and conduct with the positive and negative electrode conductive strips of the track power supply; The anti-pulling assembly (9) is symmetrically arranged on the plug-in part (42), used for locking the plug-in part (42) in the adapter slot of the track power supply.

2. The adapter for track power supply according to claim 1, wherein The contact mounting groove (50) is fixed in the socket shell (4); The conductive contact assembly (5) includes positive and negative conductive contact pieces (52) and (53) respectively installed in the contact mounting groove (50), and the positive and negative conductive contact pieces (52) and (53) correspond to the positive and negative plug pin positions of the jack (41) respectively; The ground conductive contact assembly (8) is installed in the contact mounting groove (50) between the positive and negative conductive contact pieces (52) and (53), and corresponds to the ground plug pin position of the jack (41); The conductive rod (61) is arranged in the hinged shaft of each conductive arm assembly (6), and is electrically connected with the conductive contact point (622) through the conductive connecting piece (621) embedded in the conductive arm assembly (6), and the other end of the conductive rod (61) is respectively electrically connected with the positive and negative conductive contact pieces (52) and (53).

3. An adapter for a track power supply according to claim 2, characterized in that The ground conductive contact piece (81) is movably arranged in the center of the plug-in part (42), one end of the ground conductive contact piece (81) is electrically connected with the ground conductive contact assembly (8), and the other end of the ground conductive contact piece (81) extends out of the outer wall of the plug-in part (42) and can be in contact with the ground conductive part in the track power supply to form a ground path.

4. An adapter for a track power supply according to claim 3, characterized in that A ground wire reset spring (82) is arranged at the tail of the ground wire conductive contact (81), the front end of the ground wire reset spring (82) abuts against the tail end of the ground wire conductive contact (81), the rear end abuts against the inner wall of the socket shell (4) and exerts a spring force to keep the ground wire conductive contact (81) in the extended state.

5. An adapter for a track power supply according to claim 2, characterized in that The conductive arm assembly (6) is in "Y" shape, each conductive arm assembly (6) extends into the corresponding receiving groove (43) through the extended swing arm (62), the conductive contact point (622) and the conductive connecting piece (621) are arranged on the swing arm (62) respectively, the conductive rod (61) is inserted into the three-prong intersection of the conductive arm assembly (6) respectively, and one side of the positive conductive contact (52) and the negative conductive contact (53) respectively extends the metal clamping end (51).

6. An adapter for a track power supply according to claim 1, characterized in that The plug-in part (42) is penetrated by a rotating block groove (90) at intervals, the socket shell (4) is provided with an axis hole (40) corresponding to the position of the rotating block groove (90) and capable of being communicated with the rotating block groove (90), and the anti-pulling assembly (9) comprises: The rotating head (94) has a diameter greater than the width of the rotating block groove (90) and the track power adapter slot, and the surface is respectively provided with symmetrical letting plane (95) and guide inclined surface (96), two letting plane (95) and two guide inclined surface (96) are arranged in cross shape; The rotating shaft (97) is rotatably inserted into the axis hole (40), one end of the rotating shaft (97) is connected with the rotating head (94), and the other end of the rotating shaft (97) extends into the socket shell (4) and is provided with a protruding fixing lug (98) on the outer wall; The unlocking piece (92) can move up and down in the socket shell (4), and the end part is respectively abutted with the corresponding fixing lug (98); The anti-pulling reset spring (99) is arranged on the side of the fixing lug (98) away from the end part of the unlocking piece (92), and the other end is arranged on the protruding anchor point (44) in the socket shell (4), which is used for resetting after the rotating shaft (97) is rotated; The unlocking button (93) is connected with the unlocking piece (92) at one end and movably penetrates the outer wall of the socket shell (4) at the other end; The unlocking piece (92) is in arc semicircular shape, the end part of the unlocking piece (92) is abutted with the fixing lug (98) of the rotating shaft (97), the unlocking piece (92) is driven to rotate by pushing and extruding the fixing lug (98) when moving downward, so that the letting plane (95) of the rotating head (94) is separated from the locked state in the track power adapter slot.

7. An adapter for a track power supply according to claim 5, characterized in that The elastic compensation member comprises a spring groove (72) arranged at the end of the extrusion arm (71) and in concave shape, and a telescopic reset spring (73) accommodated in the spring groove (72); a telescopic head (74) is telescopically mounted in the opening of the spring groove (72), the head end of the telescopic head (74) extending out of the spring groove (72) is in round head shape, and the tail of the telescopic head (74) abuts against the telescopic reset spring (73) to keep the head end of the telescopic head (74) extending out of the spring groove (72) and abutting against the V-shaped sliding surface (63).

8. An adapter for a track power supply according to claim 7, characterized in that An arched convex point (64) is arranged in the central recessed position of the V-shaped sliding surface (63), and the telescopic head (74) passes over the arched convex point (64) when sliding on the V-shaped sliding surface (63).

9. An adapter for a rail power supply according to any one of claims 1 to 8, characterized in that, A safety door (16) is arranged between the inner wall of the socket shell (4) and the conductive contact piece assembly (5) to close or open the insertion hole (41).

10. An adapter for a track power supply according to claim 9, characterized in that The safety door (16) comprises a sliding support (17) arranged between the conductive contact piece assembly (5) and the inner wall of the front socket shell (4), a first safety door plate (18) which is arranged to slide up and down on the sliding support (17), a let-out slot (181) with an open bottom arranged in the center of the first safety door plate (18), side blocking pieces (182) arranged on the left and right sides of the let-out slot (181) of the first safety door plate (18) and corresponding to the positions of the positive and negative insertion pins of the insertion hole (41), first extrusion inclined surfaces (183) respectively arranged on the side blocking pieces (182), a second safety door plate (19) arranged in the let-out slot (181) and having a top end abutting against the top wall of the let-out slot (181), the bottom of the second safety door plate (19) extending out of the bottom of the let-out slot (181) and having a safety door return spring (191) abutting against the bottom end, a convex abutting groove (171) arranged on the sliding support (17), the bottom end of the safety door return spring (191) abutting against the abutting groove (171), and second extrusion inclined surfaces (192) arranged on the front of the second safety door plate (19) and corresponding to the insertion hole (41).

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