CN219955243U - Guide rail spotlight with hidden knob switch - Google Patents

Abstract

The utility model discloses a guide rail spotlight with a hidden knob switch, which comprises: the lamp comprises a lamp tube, a lamp post, a power supply bottom box, a knob ring, a rotary support and a conductive sheet. The utility model adopts the structure of the knob type switch, is convenient to operate, and can realize on-off electricity by directly rotating the knob by hands; the operation convenience of the utility model is greatly improved, and the effects of time and labor saving are achieved; the knob ring occupies very little external space of the lamp body, and the cooperation with the power supply bottom box is compact and fit, so that the whole lamp achieves the effect of miniaturization; meanwhile, in the visual effect, the knob switch is equivalent to being integrated with the lamp body, and is simpler, lighter and unobtrusive in visual sense. The switch adopts a hidden structural design, so that the size specification of the lamp body is obviously reduced, and the miniaturization and integration degree of the guide rail lamp are obviously improved.

Description

Guide rail spotlight with hidden knob switch

Technical Field

The utility model relates to the field of lamps, in particular to a guide rail spotlight with a hidden knob switch.

Background

The guide rail lamp, also called a track lamp, can be slid along the guide rail by mounting a matched spot lamp on a structure similar to the guide rail, so that the illumination range can be greatly adjusted. Conductive metal strips distributed along the length direction of the guide rail are arranged on two sides of the interior of the guide rail, and rotatable conductive metal sheets are arranged at joints of the track lamp; when the track lamp is arranged on the guide rail, the conductive metal sheet is rotated to be contacted with the conductive metal strip in the guide rail, so that the track lamp can take electricity from the guide rail, and the power supply for the light source is realized.

At present, a conventional guide rail spotlight in the market is generally powered on and powered off by taking a handle as a switch and turning an inner conductive metal sheet by screwing the handle. The design of handle formula protrusion outside in the lamp body occupies the outside space of lamp body more, and it is old and useless not only to seem to be burdensome, still causes damage or inefficacy because of the collision easily in the transportation. There are also some guide rail spot lights which adopt hidden switches on the market, but the same is the case of adopting a handle type switch, the hidden design is just to hide the handle in the inner space of the power supply box, the handle needs to be pulled out of the power supply box by hand in the operation process, the operation is quite troublesome, and great effort is needed to break the handle when the spot lights are installed in the guide rail; in addition, the structure is complex, the required power box is larger in size, so that the size of the whole lamp is correspondingly increased, and the effect of miniaturization cannot be achieved.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model aims to provide a guide rail spotlight with a hidden knob switch, which can solve the problems of large occupied space of the switch, labor-consuming installation and large size of the whole lamp of the existing guide rail lamp.

The utility model is realized by adopting the following technical scheme:

a track spotlight with a concealed knob switch, comprising: a light source is arranged in the light tube; the lower end of the lamp post is fixed on the lamp cylinder; a power supply base box comprising: the main box body and the hollow boss fixed at the bottom of the main box body; the upper end of the lamp post is fixed to the hollow boss; the knob ring is rotatably sleeved on the periphery of the hollow boss; the rotating bracket is accommodated in the power supply bottom box; one end of the rotary bracket extends into the hollow boss and is fixed relative to the knob ring; for contact energization with the rail: a conductive sheet; the conducting strip is fixedly arranged on the rotary bracket; a slot for extending the conducting strip is formed in the side part of the power supply bottom box, and one end of the conducting strip is exposed out of the power supply bottom box; the light source is electrically connected to the conductive sheet.

Further, the rotating bracket includes: a conductive sheet mounting portion and a plug portion; a conducting strip accommodating groove for installing a conducting strip is formed in the conducting strip installation part, and the plug-in part is fixedly arranged at the bottom of the conducting strip installation part; the inner side wall of the knob ring is also convexly provided with a slot, and the inserting part of the rotary support is inserted and fixed in the slot.

Further, a wedge-shaped block is arranged on the plug-in connection part, and the lower end of the wedge-shaped block is a narrow end.

Further, the hollow boss is provided with mutually communicated bosses: a guide notch and a guide groove; the guide notch extends along the radial direction of the side wall of the hollow boss, and the lower end of the guide notch is a through end; the guide groove extends along the peripheral direction of the side wall of the hollow boss, one end of the guide groove is communicated with the upper end of the guide notch, and the slot of the knob ring is arranged in one end of the guide groove far away from the guide notch.

Further, the guide slot is far away from in the one end of guide breach still fixedly provided with: arc-shaped positioning ribs; the arc-shaped positioning rib is an elastic sheet with an arc-shaped surface; notch matched with the arc-shaped positioning rib is formed in two sides of the slot; the arc-shaped positioning ribs are connected to the notch in a penetrating mode, and the arc-shaped surface is elastically clamped in the notch.

Further, the bottom of cavity boss has seted up the draw-in groove, the upper end of lamp pole be equipped with draw-in groove assorted buckle, the buckle lock is fixed in the draw-in groove.

Further, the conductive sheet includes: an L-pole copper sheet, an N-pole copper sheet and a grounding copper sheet; the conductive sheet accommodation groove includes: an L-pole copper sheet accommodating groove, an N-pole copper sheet accommodating groove and a grounding copper sheet accommodating groove; the L-pole copper sheet, the N-pole copper sheet and the grounding copper sheet are respectively arranged in the L-pole copper sheet accommodating groove, the N-pole copper sheet accommodating groove and the grounding copper sheet accommodating groove.

Further, the guide rail spotlight with the hidden knob switch further comprises: an input power line, a driving power line, and an output power line; one end of the input power line is connected with the L-pole copper sheet and the N-pole copper sheet, and the other end of the input power line is connected with the driving power supply; one end of the output power line is connected with the driving power supply, and the other end of the output power line is connected with the light source; the driving power supply is accommodated in the main box body.

Further, the guide rail spotlight with the hidden knob switch further comprises: three V-shaped elastic pieces respectively arranged in the L-pole copper sheet accommodating groove, the N-pole copper sheet accommodating groove and the grounding copper sheet accommodating groove; the V-shaped elastic sheet is in an elastic deformation state, one side arm of the V-shaped elastic sheet is abutted against the conductive sheet, and the other side arm is abutted against the inner side wall of the conductive sheet accommodating groove.

Further, the power supply bottom box further comprises: a power supply box upper cover; the upper cover of the power supply box is covered and fixed on the main box body, a slot for the conductive sheet to extend out is formed in the side part of the upper cover of the power supply box, one end of the conductive sheet is arranged in the conductive sheet accommodating slot, and the other end of the conductive sheet extends out of the slot; the bottom of power pack upper cover is equipped with the support installation knot, the conducting strip installation department of swivel mount rotationally joint in the support installation knot.

Compared with the prior art, the utility model has the following beneficial effects:

the lamp post, the lamp tube and the power supply bottom box are relatively fixed, the knob ring and the rotating support are relatively fixed, the knob ring is rotatably arranged on the periphery of the hollow boss of the power supply bottom box, and the rotating support is rotatable in the power supply bottom box. When the track lamp is installed, the knob ring is rotated, the knob ring drives the rotating support in the power supply bottom box to rotate, and each conducting strip rotates along with the rotating support, so that the conducting strips at two sides of the track are contacted with each other, the track lamp can take electricity from the track, and power supply is realized for the light source.

(1) The utility model adopts the structure of the knob type switch, is convenient to operate, and can realize on-off electricity by directly rotating the knob by hands; compared with the prior mode of needing to break the handle or need to scratch the handle from the power supply box, the operation convenience of the utility model is greatly improved, and the effects of time and labor saving are achieved; (2) The knob ring is installed in a sleeved mode, so that the external space of the lamp body occupied by the switch is very small, the switch is matched with the power supply bottom box in a compact mode, the whole lamp achieves the effect of miniaturization, and the switch is not easy to fail due to collision in the transportation process; meanwhile, in the visual effect, the knob switch is equivalent to being integrated with the lamp body, and is simpler, lighter and unobtrusive in visual sense. (3) The rotating bracket is accommodated in the inner cavity of the power supply bottom box, and only the tail ends of the conducting strips extend out to ensure contact electrification, so that the size of the lamp is compressed to the maximum extent; the size of the knob ring or the rotating bracket is not increased, the hidden structural design is adopted, the size specification of the lamp body is obviously reduced, and the miniaturization and integration degree of the guide rail lamp are obviously improved.

Drawings

FIG. 1 is a perspective view of the present utility model;

FIG. 2 is a perspective view of another view of the present utility model;

FIG. 3 shows a side view of the present utility model;

FIG. 4 is an exploded view of the present utility model;

FIG. 5 shows an assembled view of a light pole and a light barrel;

FIG. 6 shows an exploded view of the power base box and light pole;

FIG. 7 is an assembled cutaway view of the power base box and light pole;

FIG. 8 is an exploded view of the power base cartridge and the knob ring;

FIG. 9 is another perspective exploded view of the power base box and the knob ring;

FIG. 10 is an assembly view of the power base box and the knob ring;

FIG. 11 is a schematic view of a knob ring;

FIG. 12 is a schematic view showing the internal structure of the power supply bottom case;

FIG. 13 is an enlarged view of a portion of FIG. 12 at A;

FIG. 14 is an assembly view of the power base box and the knob ring;

FIG. 15 is an enlarged view of a portion of FIG. 14 at B;

FIG. 16 is a schematic view showing the assembly of a swivel bracket and a knob ring;

FIG. 17 is an assembly view of the rotating bracket with the conductive sheet and the V-shaped spring sheet;

FIG. 18 is a schematic view of a rotating bracket;

FIG. 19 is a schematic view of a rotating rack from another perspective;

FIG. 20 is an assembly view of the swivel bracket and the upper cover of the power box;

fig. 21 is a partial enlarged view showing the assembled upper cover of the power box and the swivel bracket.

In the figure: 10. a lamp barrel; 11. a light source; 20. a lamp post; 21. a buckle; 30. a power supply bottom box; 31. a main case; 32. a hollow boss; 321. a guide notch; 322. a guide groove; 323. arc-shaped positioning ribs; 324. a clamping groove; 33. a power supply box upper cover; 331. slotting; 332. a bracket mounting buckle; 40. a knob ring; 41. a slot; 411. a notch; 50. a rotating bracket; 51. a conductive sheet mounting portion; 511. a conductive sheet accommodation groove; 52. a plug-in part; 521. wedge blocks; 60. a conductive sheet; 61. an L-pole copper sheet; 62. an N-pole copper sheet; 63. grounding copper sheet; 70. an input power line; 80. a driving power supply; 90. an output power line; 100. v-shaped spring plate.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model discloses a guide rail spotlight with a hidden knob switch, referring to fig. 1-4, comprising: the lamp comprises a lamp tube 10, a lamp post 20, a power supply bottom box 30, a knob ring 40, a rotary support 50 and a conductive sheet 60. Wherein a light source 11 for illumination is provided inside the lamp vessel 10. Referring to fig. 4-5, the lower end of the lamp post 20 is fixedly connected to the lamp cartridge 10. Referring to fig. 6, the power supply base box 30 includes: the main box body 31 and fix the cavity boss 32 in main box body 31 bottom, main box body 31 inside has the appearance chamber, and cavity boss 32 is linked together with main box body 31, and cavity boss 32 is outstanding for the bottom of main box body 31. Referring to fig. 6-7, the upper end of the lamp post 20 is fixed on the hollow boss 32, so that the power supply bottom box 30, the lamp post 20 and the lamp barrel 10 are relatively fixed. Referring to fig. 8 to 10, the knob ring 40, which is an operation switch of the track lamp, is of a ring-shaped structure, and is rotatably sleeved on the outer circumferential surface of the hollow boss 32; referring to fig. 4 and 16, the rotary bracket 50 is accommodated in the power supply bottom case 30, and its end extends to a position inside the hollow boss 32 and is fixed opposite to the knob ring 40; the rotating bracket 50 performs a rotational movement in the power base box 30 in synchronization when the knob ring 40 rotates around the hollow boss 32. The conductive sheet 60 is used for contacting and energizing with conductive metal strips on two sides of the interior of the guide rail (not shown), is fixedly arranged on the rotating bracket 50, and rotates along with the rotating bracket 50; referring to fig. 21, a slot 331 is further formed in the side portion of the power supply bottom box 30 for the conductive sheet 60 to extend, one end of the conductive sheet 60 is exposed out of the power supply bottom box 30, and the light source 11 is electrically connected to the conductive sheet 60 through a plurality of circuit elements.

When the track lamp is installed, the knob ring 40 is rotated to a specific angle, the knob ring 40 drives the rotary support 50 in the power supply bottom box 30 to synchronously rotate, and each conducting strip 60 follows the rotary support 50 to rotate, so that the conducting strips 60 are contacted with the conducting metal strips on two sides of the track, the track lamp can take electricity from the track, power supply is realized for the light source 11, and normal illumination is realized.

Referring to fig. 16-19, the specific structure of the rotating bracket 50 includes one body: a conductive sheet mounting portion 51 and a plug portion 52; the conductive sheet mounting portion 51 is provided therein with a conductive sheet accommodating groove 511 for mounting the conductive sheet 60, and the plugging portion 52 is fixedly disposed at the bottom of the conductive sheet mounting portion 51. Correspondingly, the inner side wall of the knob ring 40 is convexly provided with a slot 41, and the inserting part 52 of the rotary bracket 50 is inserted and fixed in the slot 41 of the knob ring 40, so that the rotary bracket 50 and the knob ring 40 are relatively fixed.

Preferably, the plug portion 52 is further provided with a wedge 521, and a lower end of the wedge 521 is a narrow end. When the plug-in portion 52 is installed in the slot 41, an operator only needs to continuously press the rotating bracket 50 downwards, and the structure of the wedge-shaped block 521 can ensure that the rotating bracket 50 is tightly plugged in the slot 41 and cannot move relatively, so that the wedge-shaped block 521 is not easy to loosen.

Specifically, referring to fig. 8-10, the hollow boss 32 is further provided with mutually communicating: a guide notch 321 and a guide groove 322; the guiding notch 321 extends along the radial direction of the side wall of the hollow boss 32, and the lower end of the guiding notch is a through end; the guide groove 322 extends along the peripheral direction of the side wall of the hollow boss 32, one end of the guide groove 322 is communicated with the upper end of the guide notch 321, and the slot 41 of the knob ring 40 is arranged in one end of the guide groove 322 far away from the guide notch 321. In the process of installing the knob ring 40, when the knob ring 40 is sleeved on the periphery of the hollow boss 32, since the slot 41 protrudes relative to the inner side wall of the knob ring 40, a guiding notch 321 is designed on the hollow boss 32, and the slot 41 can slide along the guiding notch 321 without interference in the process of sleeving the knob ring 40. The guiding groove 322 limits the rotation of the knob ring 40, and the knob ring 40 is sleeved into the hollow boss 32 from bottom to top, and the conductive sheet 60 and the conductive metal strip of the guide rail are in a disconnected state; then, the knob ring 40 is rotated along the extending direction of the guide groove 322 until the insertion groove 41 abuts against the end of the guide groove 322, and the knob ring 40 cannot be rotated further, at which time the conductive sheet 60 contacts the conductive metal strip in the guide rail. The range of travel of the guide groove 322 defines the range of rotation of the knob ring 40, meaning that the spotlight has been engaged in the circuit after the operator has screwed the knob ring 40 into place.

Further, in order to make the knob ring 40 unable to rotate at will after rotating in place, referring to fig. 11-15, an arc positioning rib 323 is fixedly disposed in one end of the guiding groove 322 far from the guiding notch 321, the arc positioning rib 323 is an elastic sheet with an arc surface, two sides of the slot 41 of the knob ring 40 are provided with notches 411 matching with the arc positioning rib 323, in the process of rotating the knob ring 40 inwards, the notches 411 of the slot 41 gradually contact with the arc positioning rib 323, forcing the arc positioning rib 323 to generate elastic deformation gradually, after the knob ring 40 overcomes a certain damping force, the arc positioning rib 323 is connected with the notches 411 in a penetrating way, and meanwhile, the arc surface is elastically clamped in the notches 411, so that the knob ring 40 cannot rotate at will, and the conductive sheet 60 is ensured to keep sufficient contact with the conductive metal strip on the guiding rail, thereby ensuring the illumination stability.

Specifically, referring to fig. 6 to 7, the connection manner of the lamp post 20 and the power supply bottom box 30 is: the clamping groove 324 is formed in the bottom of the hollow boss 32 of the power supply bottom box 30, the buckle 21 matched with the clamping groove 324 is arranged at the upper end of the lamp post 20, the buckle 21 is buckled and fixed in the clamping groove 324, and the installation between the lamp post 20 and the power supply bottom box 30 is completed.

When the lamp pole 20 is fastened and fixed on the hollow boss 32 of the power supply bottom box 30, the upper end of the knob ring 40 is tightly abutted to the bottom of the main box body 31, and the lower end of the knob ring 40 is tightly abutted to the lamp pole 20, so that the effect of compact structure is achieved, and miniaturization of the lamp body is ensured.

Specifically, in the present embodiment, referring to fig. 4 and 17, the conductive sheet 60 includes: the L-pole copper sheet 61, the N-pole copper sheet 62 and the grounding copper sheet 63 are respectively used for connecting a live wire, a zero wire and a ground wire in the guide rail. Accordingly, the conductive sheet accommodating groove 511 further specifically includes: an L-pole copper sheet accommodating groove, an N-pole copper sheet accommodating groove and a grounding copper sheet accommodating groove. The L-pole copper sheet 61, the N-pole copper sheet 62, and the ground copper sheet 63 are disposed in the L-pole copper sheet accommodating groove, the N-pole copper sheet accommodating groove, and the ground copper sheet accommodating groove, respectively.

Specifically, referring to fig. 4, the connection between the conductive sheet 60 and the light source 11 is as follows: the utility model also comprises an input power line 70, a driving power line 80 and an output power line 90, wherein one end of the input power line 70 is connected with the L-pole copper sheet 61 and the N-pole copper sheet 62, and the other end is connected with the driving power line 80; one end of the output power line 90 is connected to the driving power supply 80, and the other end is connected to the light source 11; the driving power supply 80 is accommodated in the main casing 31.

The L-pole copper sheet 61 and the N-pole copper sheet 62 take electricity from the guide rails, are input into the driving power supply 80 through the input power supply line 70, and the driving power supply 80 transmits voltage and current to the light source 11 in the lamp tube 10 through the output power supply line 90.

Preferably, referring to fig. 17, the present utility model further includes: three V-shaped elastic pieces 100 respectively arranged in the L-pole copper sheet accommodating groove, the N-pole copper sheet accommodating groove and the grounding copper sheet accommodating groove; the V-shaped spring plate 100 is in an elastically deformed state, one side arm of the V-shaped spring plate abuts against the conductive sheet 60, and the other side arm abuts against the inner side wall of the conductive sheet accommodating groove 511. Through the combination of the V-shaped elastic sheet 100 and the conductive copper sheet, the resistance which needs to be overcome by rotating the knob ring 40 when the whole lamp is connected with the conductive metal strip of the guide rail is reduced, and meanwhile, the resilience force can ensure that the L-pole copper sheet 61 and the N-pole copper sheet 62 are in good contact with the conductive metal strip of the guide rail.

Specifically, referring to fig. 21, the power supply base box 30 further includes: a power box upper cover 33; the upper cover 33 of the power box is covered and fixed on the main box body 31, a slot 331 for the conductive sheet 60 to extend is formed on the side part of the upper cover 33 of the power box, one end of the conductive sheet 60 is arranged in the conductive sheet accommodating groove 511, and the other end extends out of the slot 331. In addition, referring to fig. 20, a bracket mounting buckle 332 is provided at the bottom of the upper cover 33 of the power box, and the conductive sheet mounting portion 51 of the rotating bracket 50 is rotatably engaged in the bracket mounting buckle 332.

The utility model comprises the following steps:

(1) The light source 11, the output power line 90 and other necessary optical elements are firstly installed in the lamp tube 10, the lower end of the lamp post 20 is fixed on the lamp tube 10 through bolts, and one end of the output power line 90 is led out from the lamp post 20; (2) Sleeving the knob ring 40 on the hollow boss 32 of the power supply bottom box 30, and rotating the knob ring 40 in place; (3) The buckle 21 at the upper end of the lamp post 20 is clamped into the hollow boss 32 of the power supply bottom box 30, and one end of the output power line 90 penetrates into the main box body 31 of the power supply bottom box 30; (4) The L-pole copper sheet 61, the N-pole copper sheet 62 and the grounding copper sheet 63 are respectively arranged in the corresponding conducting strip accommodating grooves 511 on the rotating bracket 50, and then the rotating bracket 50 is clamped into the bracket mounting buckle 332 of the upper cover 33 of the power box; (5) welding the output power supply line 90 to the driving power supply 80; one end of the input power line 70 is welded on the L-pole copper sheet 61 and the N-pole copper sheet 62, the other end is welded on the driving power supply 80, and the driving power supply 80 is fixed in the power supply bottom box 30 through screws; (6) The plug-in part 52 of the rotary bracket 50 is aligned and inserted into the slot 41 of the knob ring 40, and the upper cover 33 of the power box is locked by a screw, so that the whole lamp is assembled.

Compared with the prior art, the utility model has the following technical effects:

the lamp post 20, the lamp tube 10 and the power supply bottom box 30 are relatively fixed, the knob ring 40 and the rotary support 50 are relatively fixed, the knob ring 40 is rotatably arranged on the periphery of the hollow boss 32 of the power supply bottom box 30, and the rotary support 50 is rotatable in the power supply bottom box 30. When the track lamp is installed, the knob ring 40 is rotated, the knob ring 40 drives the rotary support 50 in the power supply bottom box 30 to rotate, and each conductive sheet 60 follows the rotary support 50 to rotate, so that the conductive sheet contacts with conductive metal strips on two sides of the track inside, and the track lamp can take electricity from the track to supply power to the light source 11.

(1) The utility model adopts the structure of the knob type switch, is convenient to operate, and can realize on-off electricity by directly rotating the knob by hands; compared with the prior mode of needing to break the handle or need to scratch the handle from the power supply box, the operation convenience of the utility model is greatly improved, and the effects of time and labor saving are achieved; (2) The knob ring 40 is installed in a sleeved mode, so that the space outside the lamp body occupied by the switch is very small, the switch is matched with the power supply bottom box 30 compactly, the whole lamp achieves the effect of miniaturization, and the switch is not easy to fail due to collision in the transportation process; meanwhile, in the visual effect, the knob switch is equivalent to being integrated with the lamp body, and is simpler, lighter and unobtrusive in visual sense. (3) The rotating bracket 50 is accommodated in the inner cavity of the power supply bottom box 30, and only the tail end of the conducting strip 60 extends out to ensure contact electrification, so that the size of the lamp is furthest compressed; the size of the knob ring 40 or the rotating bracket 50 is not increased, which is equivalent to the hidden structural design, so that the size specification of the lamp body is obviously reduced, and the miniaturization and integration degree of the guide rail lamp are obviously improved.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims (10)

1. A track spotlight having a concealed knob switch, comprising:

a light source is arranged in the light tube;

the lower end of the lamp post is fixed on the lamp cylinder;

a power supply base box comprising: the main box body and the hollow boss fixed at the bottom of the main box body; the upper end of the lamp post is fixed to the hollow boss;

the knob ring is rotatably sleeved on the periphery of the hollow boss;

the rotating bracket is accommodated in the power supply bottom box; one end of the rotary bracket extends into the hollow boss and is fixed relative to the knob ring;

for contact energization with the rail: a conductive sheet; the conducting strip is fixedly arranged on the rotary bracket;

a slot for extending the conducting strip is formed in the side part of the power supply bottom box, and one end of the conducting strip is exposed out of the power supply bottom box; the light source is electrically connected to the conductive sheet.

2. The track spot light with a concealed knob switch according to claim 1, wherein the swivel bracket comprises: a conductive sheet mounting portion and a plug portion; a conducting strip accommodating groove for installing a conducting strip is formed in the conducting strip installation part, and the plug-in part is fixedly arranged at the bottom of the conducting strip installation part; the inner side wall of the knob ring is also convexly provided with a slot, and the inserting part of the rotary support is inserted and fixed in the slot.

3. The track lamp with hidden knob switch according to claim 2, wherein a wedge block is provided on said plug-in portion, and a lower end of said wedge block is a narrow end.

4. The track spotlight with a hidden knob switch according to claim 2, wherein the hollow boss is provided with a plurality of mutually communicated bosses: a guide notch and a guide groove; the guide notch extends along the radial direction of the side wall of the hollow boss, and the lower end of the guide notch is a through end; the guide groove extends along the peripheral direction of the side wall of the hollow boss, one end of the guide groove is communicated with the upper end of the guide notch, and the slot of the knob ring is arranged in one end of the guide groove far away from the guide notch.

5. The track spot light with a hidden knob switch according to claim 4, wherein the guide groove is further fixedly disposed in one end far away from the guide notch: arc-shaped positioning ribs; the arc-shaped positioning rib is an elastic sheet with an arc-shaped surface; notch matched with the arc-shaped positioning rib is formed in two sides of the slot; the arc-shaped positioning ribs are connected to the notch in a penetrating mode, and the arc-shaped surface is elastically clamped in the notch.

6. The track spotlight with the hidden knob switch according to claim 1, wherein the bottom of the hollow boss is provided with a clamping groove, the upper end of the lamp post is provided with a buckle matched with the clamping groove, and the buckle is buckled and fixed in the clamping groove.

7. The track spot light with a concealed knob switch according to claim 2, wherein said conductive sheet comprises: an L-pole copper sheet, an N-pole copper sheet and a grounding copper sheet; the conductive sheet accommodation groove includes: an L-pole copper sheet accommodating groove, an N-pole copper sheet accommodating groove and a grounding copper sheet accommodating groove; the L-pole copper sheet, the N-pole copper sheet and the grounding copper sheet are respectively arranged in the L-pole copper sheet accommodating groove, the N-pole copper sheet accommodating groove and the grounding copper sheet accommodating groove.

8. The track spot light with a concealed knob switch according to claim 7, wherein the track spot light with a concealed knob switch further comprises: an input power line, a driving power line, and an output power line; one end of the input power line is connected with the L-pole copper sheet and the N-pole copper sheet, and the other end of the input power line is connected with the driving power supply; one end of the output power line is connected with the driving power supply, and the other end of the output power line is connected with the light source;

the driving power supply is accommodated in the main box body.

9. The track spot light with a concealed knob switch according to claim 7, wherein the track spot light with a concealed knob switch further comprises: three V-shaped elastic pieces respectively arranged in the L-pole copper sheet accommodating groove, the N-pole copper sheet accommodating groove and the grounding copper sheet accommodating groove; the V-shaped elastic sheet is in an elastic deformation state, one side arm of the V-shaped elastic sheet is abutted against the conductive sheet, and the other side arm is abutted against the inner side wall of the conductive sheet accommodating groove.

10. The track projector with a concealed knob switch according to claim 2, wherein said power base box further comprises: a power supply box upper cover; the upper cover of the power supply box is covered and fixed on the main box body, a slot for the conductive sheet to extend out is formed in the side part of the upper cover of the power supply box, one end of the conductive sheet is arranged in the conductive sheet accommodating slot, and the other end of the conductive sheet extends out of the slot;

the bottom of power pack upper cover is equipped with the support installation knot, the conducting strip installation department of swivel mount rotationally joint in the support installation knot.