Four-wire guide rail power supply structure
By designing a rotatable electrical connector structure, the problem of insufficient adaptability of existing four-wire guide rail power supply electrical connectors is solved, and the adaptation to more guide rail brands and market competitiveness is improved.
Patent Information
- Application Number
- CN202421278962.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-06-05
AI Technical Summary
The electrical connections of the existing four-wire guide rail power supply are designed for the rail spacing range that is too small, resulting in the inability to adapt to more guide rail brands, and the market competitiveness is weak.
Design a four-wire guide rail power structure, the electrical connection parts are connected up and down through the rotation of the knob, and can adapt to the contact of the four-wire guide rails of different spacings, including the knob, the power supply housing and four electrical connections, and the contact of the electrical connection parts. The portion can be accommodated or extended with the rotating knob member to achieve electrical connection.
This design allows the four-wire guide rail power to adapt to more guide rail brands, enhance market competitiveness, and realize adaptive installation of electrical connectors through the rotation of the knob parts, adapting to guide rails of different spacings.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of guide rail power supplies, in particular to a four-wire guide rail power supply structure. Background Art
[0002] like Figure 1 As shown, it is a cross-sectional view of a four-wire guide rail configured for track electrical devices (such as LED track lights), wherein L is the spacing between the upper and lower electrically connected copper bars, and the four-wire guide rail power supply is electrically connected through four electrical connectors and four electrically connected copper bars to provide power for the four-wire guide rail.
[0003] However, the electrical connector of the current four-wire guide rail power supply is designed with spring clips, the range of spring clip movement is limited, and the guide rail spacing L range that it is applicable to is too small, which limits the selection of guide rail brands and cannot adapt to more guide rail brands, resulting in weak market competitiveness. Utility Model Content
[0004] In view of the above-mentioned defects, the purpose of the utility model is to propose a four-wire guide rail power supply structure, whose electrical connector can achieve electrical connection with four-wire guide rails with different spacing between electrical connecting copper bars on both sides, so as to adapt to more guide rail brands and have stronger market competitiveness.
[0005] To achieve this purpose, the utility model adopts the following technical solutions:
[0006] A four-wire guide rail power supply structure, comprising a knob, a power supply housing and four electrical connectors; the mounting parts of two of the electrical connectors are telescopically mounted in the upper part of the knob rotating part, and the mounting parts of the other two of the electrical connectors are telescopically mounted in the lower part of the knob rotating part, the knob is rotatably mounted in the power supply housing, and the upper and lower ends of the power supply housing are provided with electrical connection movable openings corresponding to the electrical connectors;
[0007] The contact portion of the electrical connector rotates with the knob member, and can be rotated into the electrical connection movable port to be stored in the power supply housing, or rotated out of the electrical connection movable port to extend outside the power supply housing.
[0008] Furthermore, two accommodating cavities are provided in the front and rear parts of the knob, and the accommodating cavities are provided with cavity openings, and the cavity openings are provided at the upper end or the lower end of the knob;
[0009] The contact portion of the electrical connector extends out from the cavity opening, and the mounting portion of the electrical connector is telescopically mounted in the accommodating cavity.
[0010] Furthermore, the electrical connector includes a fixing member, a contact sheet and a spring sheet; the fixing member is fixedly connected to the left end of the spring sheet, the right end of the spring sheet is fixedly connected to the lower end or the upper end of the contact sheet, and the sheet surface of the spring sheet faces the sheet surface of the contact sheet;
[0011] The fixing member is fixed in the accommodating cavity, the contact piece passes through the cavity opening and extends to the outside of the accommodating cavity, and the elastic piece can be bent upward or downward and move in the accommodating cavity.
[0012] Further, the knob member includes a front knob shell, a rear knob shell and a partition plate; the rear portion of the front knob shell and the front portion of the rear knob shell are each provided with two receiving slots, and the receiving slots are provided with notches; the notches of the front knob shell are each provided at the lower right end of the receiving slot, and the notches of the rear knob shell are each provided at the upper right end of the receiving slot, and a fixing position is provided at the left end of the receiving slot;
[0013] The fixing member is fixed at the fixing position, the contact piece extends through the notch to the outside of the receiving groove, and the elastic piece can be bent up and down and move between the upper groove wall and the lower groove wall of the receiving groove;
[0014] The rear end of the front knob shell and the front end of the rear knob shell are buckled to fix the partition plate, the partition plate and the accommodating groove are enclosed to form the accommodating cavity, and the partition plate and the groove are enclosed to form the cavity opening.
[0015] Furthermore, the middle portion of the spring sheet is bent in a direction opposite to the notch.
[0016] Furthermore, the end of the contact piece extending outside the accommodating cavity is provided with an inclined fillet, the inclined fillet is inclined toward the direction of rotating out of the electrical connection movable opening, and the top of the inclined fillet is tilted in the opposite direction.
[0017] Furthermore, the fixing piece, the contact piece and the spring piece are all made of brass.
[0018] Further, a disc-shaped latch is provided at the left end of the partition plate, the front knob shell is provided with a first disc-shaped latch groove corresponding to the disc-shaped latch, and the rear knob shell is provided with a second disc-shaped latch groove corresponding to the disc-shaped latch, and the first disc-shaped latch groove and the second disc-shaped latch groove are buckled to fix the disc-shaped latch;
[0019] A transmission handle is provided at the left end of the front knob housing;
[0020] A first fixing latch is disposed at the rear of the partition plate, and a first fixing latch groove is disposed at the rear knob shell corresponding to the first fixing latch, and the first fixing latch is connected to the first fixing latch groove by latching.
[0021] Furthermore, the side surface of the front knob shell and the side surface of the rear knob shell are cooperated with at least one pair of snap connection components, and the rear end of the front knob shell and the front end of the rear knob shell are cooperated with at least one pair of pin connection components.
[0022] Furthermore, the power supply housing includes an upper power supply housing, a power knob housing and a lower power supply housing; the power knob housing and the lower power supply housing are buckled to limit the rotating part of the knob member, and the upper power supply housing and the lower power supply housing are buckled to limit the transmission part of the knob member and fix the power knob housing;
[0023] The electrical connection movable port is arranged on the power knob shell and the power lower shell.
[0024] The technical solution provided by the utility model may have the following beneficial effects: the knob is rotated and installed in the power supply housing, and when the four-wire guide rail power supply and the four-wire guide rail are used for electrical connection, the right part of the four-wire guide rail power supply can be inserted into the four-wire guide rail ( Figure 1 ) inside, by turning the knob, the electrical connector is driven to rotate, so that the contact portion of the electrical connector is rotated out of the electrical connection movable port and electrically connected to the electrical connection copper bars on the upper and lower sides of the four-wire guide rail, thereby realizing power supply for the four-wire guide rail; and because the mounting portions of the four electrical connectors are telescopically mounted on the rotating portion of the knob up and down, when the spacing L between the electrical connection copper bars on the upper and lower sides of the four-wire guide rail is too small or too large, the mounting portion of the electrical connector can be retracted into or extended out of the upper or lower portion of the knob to adapt to four-wire guide rails with different spacings L, thereby adapting to more guide rail brands and enhancing market competitiveness.
[0025] It should be noted that when the four-wire guide rail power supply and the four-wire guide rail are electrically disconnected, the knob is rotated to drive the electrical connector to rotate, so that the electrical connector can be disconnected from the electrical connection copper bar of the four-wire guide rail, and the contact part of the electrical connector is turned into the electrical connection movable port and stored in the power supply housing, so as to facilitate the next insertion of the four-wire guide rail. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a cross-sectional view of an existing four-wire guide rail.
[0027] Figure 2 It is a structural schematic diagram of a four-wire guide rail power supply structure in one embodiment of the utility model.
[0028] Figure 3 Yes Figure 2 The figure shows an assembly diagram of a four-wire rail power supply structure.
[0029] Figure 4 Yes Figure 3 Schematic diagram of the assembly of the knob shown.
[0030] Figure 5 Yes Figure 4 Schematic diagram of the assembly of the electrical connector and the rear knob housing shown.
[0031] Figure 6 Yes Figure 4 Schematic diagram of the structure of the front knob shell shown.
[0032] Among them: electrical connector 1, knob component 2, power supply housing 3, electrical connection movable port 31, accommodating cavity 21, cavity port 211, fixing component 11, contact piece 12, spring piece 13, front knob housing 27, rear knob housing 22, partition plate 23, accommodating slot 24, slot 241, fixing position 242, inclined fillet 121, disc-shaped latch 231, first disc-shaped latch slot 272, second disc-shaped latch slot 221, transmission handle 272, first fixed latch 232, first fixed latch slot 222, snap connection component 25, latch connection component 26, power supply upper housing 32, power supply knob housing 33, power supply lower housing 34. DETAILED DESCRIPTION
[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0034] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish and describe features, without distinction of order or importance.
[0035] In the description of the present invention, unless otherwise specified, “plurality” means two or more.
[0036] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0037] Combine the following Figures 1 to 6 , describing a four-wire guide rail power supply structure of an embodiment of the utility model.
[0038] A four-wire guide rail power supply structure comprises a knob member 2, a power supply housing 3 and four electrical connectors 1; the mounting parts of two electrical connectors 1 are telescopically mounted in the upper part of the rotating part of the knob member 2, and the mounting parts of the other two electrical connectors 1 are telescopically mounted in the lower part of the rotating part of the knob member 2, the knob member 2 is rotatably mounted in the power supply housing 3, and the upper and lower ends of the power supply housing 3 are provided with electrical connection movable openings 31 corresponding to the electrical connectors 1;
[0039] The contact portion of the electrical connector 1 rotates with the knob 2 , and can be rotated into the electrical connection movable opening 31 to be received in the power supply housing 3 , or rotated out of the electrical connection movable opening 31 to extend outside the power supply housing 3 .
[0040] The utility model proposes a preferred embodiment of a four-wire guide rail power supply structure, such as Figures 2 to 6 As shown, the knob 2 is rotated and installed in the power supply housing 3, and when the four-wire guide rail power supply and the four-wire guide rail are used for electrical connection, the right part of the four-wire guide rail power supply can be inserted into the four-wire guide rail ( Figure 1 ), by rotating the knob member 2, the electrical connector 1 is driven to rotate, so that the contact portion of the electrical connector 1 is rotated out from the electrical connection movable port 31 and electrically connected to the electrical connection copper bars on the upper and lower sides of the four-wire guide rail, thereby realizing power supply for the four-wire guide rail; and because the mounting portions of the four electrical connectors 1 are telescopically mounted on the rotating portion of the knob member 2, when the spacing L between the electrical connection copper bars on the upper and lower sides of the four-wire guide rail is too small or too large, the mounting portion of the electrical connector 1 can be retracted into or extended out of the upper or lower portion of the knob member 2 to adapt to four-wire guide rails with different spacings L, thereby adapting to more guide rail brands and enhancing market competitiveness.
[0041] It should be noted that when the four-wire guide rail power supply and the four-wire guide rail are electrically disconnected, the knob 2 is rotated to drive the electrical connector 1 to rotate, and the electrical connector 1 can be disconnected from the electrical connection copper bar of the four-wire guide rail, and the contact part of the electrical connector 1 is turned into the electrical connection movable port 31 and stored in the power supply housing 3, so as to facilitate the next insertion of the four-wire guide rail.
[0042] Furthermore, two accommodating cavities 21 are provided in the front and rear parts of the knob 2. The accommodating cavities 21 are provided with cavity openings 211, and the cavity openings 211 are provided at the upper end or the lower end of the knob 2.
[0043] The contact portion of the electrical connector 1 extends out from the cavity opening 211 , and the mounting portion of the electrical connector 1 is telescopically mounted in the accommodating cavity 21 .
[0044] In the present embodiment, in order to realize that the electrical connector 1 can be telescopically installed on the rotating part of the knob member 2, two accommodating chambers 21 are provided in the front and rear parts of the knob member 2 to provide a telescopic activity space for the installation part of the electrical connector 1; then the accommodating chamber 21 is provided with a cavity opening 211, and the cavity opening 211 is arranged at the upper end or the lower end of the knob member 2, so that the contact part of the electrical connector 1 can be extended to be electrically connected with the electrical connection copper bar of the four-wire guide rail; and after the installation part of the electrical connector 1 is telescopically installed in the accommodating chamber 21, the extension degree of the contact part of the electrical connector 1 from the cavity opening 211 can be changed through telescopic changes, so as to adapt to different four-wire guide rails.
[0045] Furthermore, the electrical connector 1 includes a fixing member 11, a contact piece 12 and a spring piece 13; the fixing member 11 is fixedly connected to the left end of the spring piece 13, the right end of the spring piece 13 is fixedly connected to the lower end or the upper end of the contact piece 12, and the sheet surface of the spring piece 13 faces the sheet surface of the contact piece 12;
[0046] The fixing member 11 is fixed in the accommodating cavity 21 , the contact piece 12 extends through the cavity opening 211 to the outside of the accommodating cavity 21 , and the elastic piece 13 can be bent upward or downward and move in the accommodating cavity 21 .
[0047] In this embodiment, considering that the electrical connector 1 should be able to self-adjust up and down to match the spacing L of the four-wire guide rail, the electrical connector 1 should be composed of three parts: a fixing member 11, a contact piece 12 and a spring piece 13. The fixing member 11 and the left end of the spring piece 13 are fixedly connected, and the right end of the spring piece 13 is fixedly connected to the lower end or the upper end of the contact piece 12. Therefore, after the fixing member 11 is fixed in the accommodating cavity 21 and the contact piece 12 extends to the outside of the accommodating cavity 21 through the cavity opening 211, when the contact piece 12 is subjected to external pressure, it can bend in the opposite direction through the sheet-like bendable characteristics of the spring piece 13 itself, that is, bend upward or downward and move in the accommodating cavity 21, so that part of the contact piece 12 can be retracted into the accommodating cavity 21, thereby adapting to the spacing L of the four-wire guide rail; and because the spring piece 13 is elastically deformed, it can restore to its initial state after the external pressure disappears, and the contact piece 12 is fully extended to facilitate the next adaptation of the contact piece 12.
[0048] More importantly, the arrangement of the one side of the elastic sheet 13 facing the one side of the contact sheet 12 can prevent the two from being easily broken when the contact sheet 12 forces the elastic sheet 13 to deform.
[0049] Further, the knob member 2 includes a front knob shell 27, a rear knob shell 22 and a partition plate 23; the rear portion of the front knob shell 27 and the front portion of the rear knob shell 22 are both provided with two receiving slots 24, and the receiving slots 24 are provided with notches 241; the notches 241 of the front knob shell 27 are both provided at the lower right end of the receiving slot 24, and the notches 241 of the rear knob shell 22 are both provided at the upper right end of the receiving slot 24, and a fixing position 242 is provided at the left end of the receiving slot 24;
[0050] The fixing member 11 is fixed at the fixing position 24, the contact piece 12 passes through the notch 241 and extends to the outside of the receiving groove 24, and the elastic piece 13 can be bent up and down and move between the upper groove wall and the lower groove wall of the receiving groove 24;
[0051] The rear end of the front knob shell 27 and the front end of the rear knob shell 22 are buckled to fix the partition plate 23 , the partition plate 23 and the receiving groove 24 together form the receiving cavity 21 , and the partition plate 23 and the notch 241 together form the cavity opening 211 .
[0052] In this embodiment, the rear of the front knob shell 27 and the front of the rear knob shell 22 are each provided with two receiving grooves 24, and the receiving grooves 24 are opened with a notch 241; the notches 241 of the front knob shell 27 are both opened at the lower right end of the receiving groove 24, and the notches 241 of the rear knob shell 22 are both opened at the upper right end of the receiving groove 24, so that when the rear end of the front knob shell 27 and the front end of the rear knob shell 22 are buckled together to fix the partition plate 23, the partition plate 23 and the receiving groove 24 are combined to form a receiving cavity 21, and the partition plate 23 and the notch 241 are combined to form a cavity opening 211.
[0053] At the same time, a fixing position 242 is provided at the left end of the accommodating groove 24. By utilizing the groove body structure of the accommodating groove 24, the fixing member 11 is fixed at the fixing position 24, and the contact piece 12 extends through the groove opening 241 to the outside of the accommodating groove 24. A misalignment is formed between the fixing member 11 and the contact piece 12, and the spring piece 13 can be bent up and down and move between the upper groove wall and the lower groove wall of the accommodating groove 24, thereby completing the installation of the electrical connector 1 in the accommodating cavity 21.
[0054] Furthermore, the middle portion of the spring piece 13 is bent in a direction opposite to the notch 241 .
[0055] In this embodiment, because the spring piece 13 made of general materials cannot be bent and moved from one side of the slot arm (upper slot wall or lower slot wall) of the accommodating slot 24 to the other side slot wall, in order to enable the spring piece 13 to bend and move between the upper and lower slot walls as much as possible, the middle part of the spring piece 13 is bent in the opposite direction of the slot opening 241, which can increase the upper and lower bending range of the spring piece 13.
[0056] Furthermore, the end of the contact piece 12 extending outside the accommodating cavity 21 is provided with an inclined fillet 121 , which is inclined toward the direction of rotating out of the electrical connection movable opening 31 , and the top of the inclined fillet 121 is tilted in the opposite direction.
[0057] In this embodiment, the end of the contact piece 12 extending outside the accommodating cavity 21 is provided with an inclined fillet 121, and the inclined fillet 121 is inclined in the direction of the electrical connection movable opening 31, so as to facilitate the sliding contact with the electrical connection copper bar of the four-wire guide rail by using the inclined surface to avoid jamming, and at the same time, can smoothly force the contact piece 12 to retract into the accommodating cavity 21 to adapt to the spacing L; and the top of the inclined fillet 121 is tilted in the opposite direction, so that the top of the inclined fillet 121 and the electrical connection copper bar are still in sliding contact, avoiding jamming when the top of the inclined fillet 121 and the electrical connection copper bar are in contact during the forward and reverse rotation, and to a certain extent, the retraction degree of the contact piece 12 is increased.
[0058] Furthermore, the fixing member 11 , the contact piece 12 and the spring piece 13 are all made of brass.
[0059] In this embodiment, the electrical connector 1 is made of brass, such as H65Y brass. Compared with the commonly used phosphor bronze, the toughness of the electrical connector 1 is increased while ensuring rigidity, especially during the bending movement of the spring 13, the upward and downward movement range is larger.
[0060] Furthermore, a disc-shaped latch 231 is provided at the left end of the partition plate 23, a first disc-shaped latch groove 272 is provided at the front knob housing 27 corresponding to the disc-shaped latch 231, and a second disc-shaped latch groove 221 is provided at the rear knob housing 22 corresponding to the disc-shaped latch 231, and the first disc-shaped latch groove 272 and the second disc-shaped latch groove 221 are engaged to fix the disc-shaped latch 231;
[0061] A transmission handle 272 is provided at the left end of the front knob housing 27;
[0062] A first fixing latch 232 is disposed at the rear of the partition plate 23 , and a first fixing latch slot 222 is disposed at the rear knob housing 22 corresponding to the first fixing latch 232 . The first fixing latch 232 and the first fixing latch slot 222 are connected by latches.
[0063] In this embodiment, a disc-shaped latch 231 is provided at the left end of the partition plate 23, and a first disc-shaped latch groove 272 is provided at the front knob shell 27 corresponding to the disc-shaped latch 231, and a second disc-shaped latch groove 221 is provided at the rear knob shell 22 corresponding to the disc-shaped latch 231. The first disc-shaped latch groove 272 and the second disc-shaped latch groove 221 are buckled together to fix the disc-shaped latch 231, so that a stable fixed relationship can be formed when the rear end of the front knob shell 27 and the front end of the rear knob shell 22 are buckled together to fix the partition plate 23. At the same time, a transmission handle 272 is provided at the left end of the front knob shell 27 for operating the rotating knob component 2, and when the knob component 2 is rotated, the disc-shaped latch 231 can be used to better drive the entire knob component 2 to rotate through the front knob shell 27.
[0064] More importantly, in order to prevent the partition plate 23 from shifting during rotation, a first fixed pin 232 is provided at the back of the partition plate 23, and the rear knob shell 22 is provided with a first fixed pin groove 222 corresponding to the first fixed pin 232, and the first fixed pin 232 and the first fixed pin groove 222 are connected by a pin.
[0065] Furthermore, the side of the front knob shell 27 and the side of the rear knob shell 22 are cooperated with at least one pair of snap connection components 25, and the rear end of the front knob shell 27 and the front end of the rear knob shell 22 are cooperated with at least one pair of pin connection components 26.
[0066] In the present embodiment, in order to ensure that the front knob shell 27 and the rear knob shell 22 are firmly and accurately fastened together, at least one pair of snap connection components 25 are provided on the side of the front knob shell 27 and the side of the rear knob shell 22, and at least one pair of pin connection components 26 are provided on the rear end of the front knob shell 27 and the front end of the rear knob shell 22.
[0067] Furthermore, the power supply housing 3 includes a power supply upper housing 32, a power supply knob housing 33 and a power supply lower housing 34; the power supply knob housing 33 and the power supply lower housing 34 are engaged with the rotating part of the limit knob member 2, and the power supply upper housing 32 and the power supply lower housing 34 are engaged with the transmission part of the limit knob member 2 and the fixed power supply knob housing 33;
[0068] The electrical connection port 31 is provided on the power knob housing 33 and the power lower housing 34 .
[0069] In this embodiment, in order to rotatably install the knob component 2 on the four-wire guide rail power supply, the power supply housing 3 is divided into three parts: the power supply upper shell 32, the power supply knob shell 33 and the power supply lower shell 34; the power supply knob shell 33 and the power supply lower shell 34 are engaged with the rotating part of the limit knob component 2, and the power supply upper shell 32 and the power supply lower shell 34 are engaged with the transmission part of the limit knob component 2 and the power supply knob shell 33 is fixed, so as to only limit the knob component 2 without affecting its rotation; and the electrical connection movable port 31 is arranged on the power supply knob shell 33 and the power supply lower shell 34, so that during the rotation of the knob component 2, the contact part of the electrical connection component 1 is turned into the electrical connection movable port 31 and stored in the power supply housing 3, or turned out of the electrical connection movable port 31 and extended outside the power supply housing 3.
[0070] Other structures and operations of a four-wire guide rail power supply structure according to an embodiment of the utility model are known to ordinary technicians in the field and will not be described in detail here.
[0071] In the description of this specification, the description with reference to the terms "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0072] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. A four-wire guide rail power supply structure, characterized in that: It comprises a knob, a power supply housing and four electrical connectors; the mounting parts of two of the electrical connectors are telescopically mounted in the upper part of the knob rotating part, and the mounting parts of the other two of the electrical connectors are telescopically mounted in the lower part of the knob rotating part, the knob is rotatably mounted in the power supply housing, and the upper and lower ends of the power supply housing are provided with electrical connection movable openings corresponding to the electrical connectors; The contact portion of the electrical connector rotates with the knob member, and can be rotated into the electrical connection movable port to be stored in the power supply housing, or rotated out of the electrical connection movable port to extend outside the power supply housing.
2. A four-wire guide rail power supply structure according to claim 1, characterized in that: Two accommodating cavities are respectively provided in the front part and the rear part of the knob, and the accommodating cavities are provided with cavity openings, and the cavity openings are arranged at the upper end or the lower end of the knob; The contact portion of the electrical connector extends out from the cavity opening, and the mounting portion of the electrical connector is telescopically mounted in the accommodating cavity.
3. A four-wire guide rail power supply structure according to claim 2, characterized in that: The electrical connector includes a fixing member, a contact sheet and an elastic sheet; the fixing member is fixedly connected to the left end of the elastic sheet, the right end of the elastic sheet is fixedly connected to the lower end or the upper end of the contact sheet, and the sheet surface of the elastic sheet faces the sheet surface of the contact sheet; The fixing member is fixed in the accommodating cavity, the contact piece passes through the cavity opening and extends to the outside of the accommodating cavity, and the elastic piece can be bent upward or downward and move in the accommodating cavity.
4. A four-wire guide rail power supply structure according to claim 3, characterized in that: The knob member comprises a front knob shell, a rear knob shell and a partition plate; the rear portion of the front knob shell and the front portion of the rear knob shell are both provided with two receiving slots, and the receiving slots are provided with notches; the notches of the front knob shell are both provided at the lower right end of the receiving slot, and the notches of the rear knob shell are both provided at the upper right end of the receiving slot, and a fixing position is provided at the left end of the receiving slot; The fixing member is fixed at the fixing position, the contact piece extends through the notch to the outside of the receiving groove, and the elastic piece can be bent up and down and move between the upper groove wall and the lower groove wall of the receiving groove; The rear end of the front knob shell and the front end of the rear knob shell are buckled to fix the partition plate, the partition plate and the accommodating groove are enclosed to form the accommodating cavity, and the partition plate and the groove are enclosed to form the cavity opening.
5. A four-wire guide rail power supply structure according to claim 4, characterized in that: The middle portion of the spring sheet is bent in a direction opposite to the notch.
6. A four-wire guide rail power supply structure according to claim 3, characterized in that: The end of the contact piece extending outside the accommodating cavity is provided with an inclined fillet, the inclined fillet is inclined toward the direction of rotating out of the electrical connection movable opening, and the top of the inclined fillet is tilted in the opposite direction.
7. A four-wire guide rail power supply structure according to claim 3, characterized in that: The fixing piece, the contact piece and the spring piece are all made of brass.
8. A four-wire guide rail power supply structure according to claim 4, characterized in that: The left end of the partition plate is provided with a disc-shaped latch, the front knob shell is provided with a first disc-shaped latch groove corresponding to the disc-shaped latch, and the rear knob shell is provided with a second disc-shaped latch groove corresponding to the disc-shaped latch, and the first disc-shaped latch groove and the second disc-shaped latch groove are buckled to fix the disc-shaped latch; A transmission handle is provided at the left end of the front knob housing; A first fixing latch is disposed at the rear of the partition plate, and a first fixing latch groove is disposed at the rear knob shell corresponding to the first fixing latch, and the first fixing latch is connected to the first fixing latch groove by latching.
9. A four-wire guide rail power supply structure according to claim 4, characterized in that: The side surface of the front knob shell and the side surface of the rear knob shell are matched with at least one pair of snap connection components, and the rear end of the front knob shell and the front end of the rear knob shell are matched with at least one pair of pin connection components.
10. The four-wire guide rail power supply structure according to claim 1, characterized in that: The power supply housing comprises an upper power supply housing, a power knob housing and a lower power supply housing; the power knob housing and the lower power supply housing are buckled to limit the rotating part of the knob member, and the upper power supply housing and the lower power supply housing are buckled to limit the transmission part of the knob member and fix the power knob housing; The electrical connection movable port is arranged on the power knob shell and the power lower shell.