CN220038350U

CN220038350U - Rotation adjusting unit, guide rail spotlight and lighting system

Info

Publication number: CN220038350U
Application number: CN202320881522.1U
Authority: CN
Inventors: 汪续宗; 钟亮亮; 周小科; 刘芳
Original assignee: NVC Lighting Technology Corp
Current assignee: NVC Lighting Technology Corp
Priority date: 2023-04-18
Filing date: 2023-04-18
Publication date: 2023-11-17
Anticipated expiration: 2033-04-18

Abstract

The utility model provides a rotation adjusting unit, a guide rail spot lamp and a lighting system, wherein the rotation adjusting unit comprises a rotation seat, a base, a surface cover and a connecting module, a first connecting part is arranged on the rotation seat, a second connecting part is arranged at the first end of the base, the base is provided with a first accommodating cavity, the surface cover is detachably arranged on the base, the surface cover is covered on an opening of the first accommodating cavity, the connecting module comprises a bolt and a damping piece, the bolt is connected with the rotation seat and the second end of the base respectively, the rotation seat can rotate relative to the base around the axis of the bolt, the damping piece is adjacent between the rotation seat and the base, and the damping piece prevents the rotation seat from rotating relative to the base. The guide rail spotlight is provided with the rotation adjusting unit, the lighting system is provided with the guide rail spotlight, and the rotation adjusting unit has the advantages of being good in damping effect and low in production cost.

Description

Rotation adjusting unit, guide rail spotlight and lighting system

Technical Field

The utility model relates to the technical field of lamps, in particular to a rotation adjusting unit and a guide rail spotlight provided with the rotation adjusting unit, and a lamplight system of the guide rail spotlight.

Background

The guide rail spot lamp is more and more popular with consumption due to the unique appearance design and the characteristics of basic illumination, highlighting key projection, adjustable illumination angle and the like. As shown in fig. 6, a conventional track spotlight 9 includes a light emitting unit 91, a rotation adjusting unit 92, and a track box unit 93; the rotation adjusting unit 92 may be used for adjusting the illumination angle of the light emitting unit 91, the rotation adjusting unit 92 includes a bracket 921 and an adjusting member 922, the light body 911 of the light emitting unit 91 is provided with a threaded hole 9111 along a radial direction of the bracket 921, the bracket 921 is provided with a through hole 9211, the adjusting member 93 passes through the through hole 9211 and is connected with the threaded hole 9111, and locks the bracket 921 on the light body 911, when the illumination angle of the light emitting unit 91 needs to be adjusted, the adjusting member 922 is unscrewed first, so that the light emitting unit 91 can rotate relative to the bracket 921, then the light emitting unit 91 is rotationally adjusted to a desired illumination angle, and finally the adjusting member 922 is unscrewed to fix the light emitting unit 91 at the adjusted illumination angle. However, the rail spotlight 9 has the following disadvantages:

first, the loosening and tightening of the adjusting member 92 easily causes sliding of the internal thread of the threaded hole 9111 and/or the external thread of the adjusting member 922, so that the damping effect between the lamp body 91 and the bracket 921 is deteriorated, the connection stability is lowered, and the lighting angle is changed;

second, the radial hole on the side of the lamp body 911 is generally formed by post-processing or mold, and when the post-processing is performed, a special fixture is required to be customized and a special processing device is configured, and when the mold is performed, a side core pulling mechanism is required to be added into the mold, and both the forming modes can increase the production cost.

Disclosure of Invention

In order to solve the above problems, a main object of the present utility model is to provide a rotation adjusting unit having a good damping effect and low production cost.

Another object of the present utility model is to provide a track spot lamp provided with the above rotation adjusting unit.

It is a further object of the present utility model to provide a lighting system provided with a track spotlight as described above.

In order to achieve the main object of the utility model, the utility model provides a rotation adjusting unit, which comprises a rotation seat, a base, a surface cover and a connecting module, wherein a first connecting part is arranged on the rotation seat, a second connecting part is arranged at the first end of the base, the base is provided with a first accommodating cavity, the surface cover is detachably arranged on the base, the surface cover is covered on an opening of the first accommodating cavity, the connecting module comprises a bolt and a damping piece, the bolt is connected with the rotation seat, the bolt is also connected with the second end of the base, the rotation seat can rotate relative to the base around the axis of the bolt, the damping piece is adjacent between the rotation seat and the base, and the damping piece prevents the rotation seat from rotating relative to the base.

From the above, the rotating seat can be connected with the light-emitting unit of the guide rail spotlight through the first connecting part, so that the light-emitting unit can rotate relative to the base and the guide rail box unit of the guide rail spotlight through the rotating seat, and further the pitching angle of illumination is adjusted, the base is connected with the guide rail box unit through the second connecting part, wherein the first accommodating cavity on the base can be used for accommodating the power supply module of the guide rail spotlight so as to improve the heat dissipation effect on the power supply module, the guide rail spotlight can meet high-power requirements, and the integral structure of the guide rail spotlight is optimized; the rotating seat is connected with the base through the bolt, so that the rotating seat can rotate relative to the base through the bolt, the condition that the bolt is required to be adjusted when the pitching angle of illumination of the light-emitting unit is adjusted each time is avoided, abrasion of the bolt, the rotating seat or the base is avoided, damping between the rotating seat and the base can be increased due to the arrangement of the damping piece, the change of the pitching angle of illumination of the light-emitting unit is avoided, and the use stability of the rotation adjusting unit is improved; furthermore, through the design to rotating the adjustment unit, can also simplify the production processing of rotation adjustment unit, luminescence unit, reduction in production cost.

In a preferred embodiment, the second end of the base has two first connecting lugs, a first accommodating position is formed between the two first connecting lugs and the first body of the base, and at least a part of the rotating seat is positioned in the first accommodating position; the quantity of the connecting modules is two groups, the two groups of connecting modules are in one-to-one correspondence with the two first connecting lugs, bolts of the connecting modules penetrate through the corresponding first connecting lugs and are in threaded connection with the rotating seat, and damping fins of the connecting modules are adjacent between the corresponding first connecting lugs and the rotating seat.

From the above, the design can ensure the stability and reliability of the connection between the rotating seat and the base, and can optimize the structure of the rotating adjusting unit more, so that the volume of the rotating adjusting unit is smaller on the premise of meeting the use requirement, and the flexibility of the guide rail spotlight provided with the rotating adjusting unit is improved.

The connecting module further comprises a first flat gasket sleeved on the bolt, and the first flat gasket is adjacent between the first connecting lug and the end head of the bolt.

From the above, the plain washer can prevent the bolt from loosening, guarantees the compactness of being connected between bolt and the rotation seat.

Still further, the connection module further comprises a first spring washer sleeved on the bolt, the first spring washer abutting between the first flat washer and the first connection lug.

As can be seen from the above, the first spring washer can further prevent the bolt from loosening.

In a further scheme, a first threaded hole is formed in the first connecting lug, and the first threaded hole extends along the radial direction of the bolt; a first set screw is arranged in the first threaded hole and is adjacent to the bolt.

From the above, the first set screw can further prevent the rotation seat after the angle adjustment from rotating relative to the base, so as to further improve the use stability of the rotation adjustment unit.

In a further scheme, the first connecting lug is provided with a second accommodating cavity, the second accommodating cavity is recessed in the first connecting lug from the outer side surface of the first connecting lug in the axial direction of the bolt, and the end head of the bolt is positioned in the second accommodating cavity; the rotation adjusting unit further includes two end caps, which are in one-to-one correspondence with the two first connection lugs, at least a portion of one end cap being mounted into the second accommodation chamber of the corresponding one of the first connection lugs.

From the above, the end cap can seal the second accommodation chamber, prevents outside dust entering in the base to play the guard action to the spare part in the base, the setting of end cap can also promote the aesthetic property of rotation adjustment unit simultaneously.

In a further scheme, the first connecting lug is provided with a through groove which is communicated with the first accommodating cavity and the second accommodating cavity; the middle part of the bolt is provided with a through hole, and the through hole penetrates through the bolt in the axial direction of the bolt; the end cap is provided with a plug part and a head part, the plug part is arranged in the second accommodating cavity, the plug part is provided with a notch, and the notch is communicated with the communication groove and the second accommodating cavity.

From the above, the above design makes the cable between the light source, the power module and the guide rail box unit of the light emitting unit of the guide rail spotlight provided with the rotation adjusting unit not exposed outside the guide rail spotlight so as to protect the cable and improve the overall aesthetic property of the guide rail spotlight.

In another preferred embodiment, the second end of the base has a connecting protrusion; the rotating seat is provided with two second connecting lugs, a second accommodating position is formed between the two second connecting lugs and the second body of the rotating seat, and at least one part of the connecting bulge is positioned in the second accommodating position; the number of the connecting modules is two, the two groups of connecting modules are in one-to-one correspondence with the two second connecting lugs, bolts of the connecting modules penetrate through the corresponding one second connecting lug and are in threaded connection with the connecting protrusions, and damping fins of the connecting modules are adjacent between the corresponding one second connecting lug and the connecting protrusions; the connecting module further comprises a second flat washer and a second spring washer, the second flat washer and the second spring washer are sleeved on the bolt, the second flat washer is adjacent between the second spring washer and the end head of the bolt, the second spring washer is adjacent to a second connecting lug, a second threaded hole extending along the bolt is formed in the second connecting lug, a second set screw is arranged in the second threaded hole, and the second set screw is adjacent to the bolt.

From the above, the connection structure among the rotating seat, the base and the connection module can be changed and designed according to the design and production requirements, so that the setting of the rotating adjusting unit is more flexible.

In order to achieve another object of the present utility model, the present utility model provides a rail spotlight, which includes a light emitting unit and a rail box unit, wherein the rail spotlight further includes the rotation adjusting unit, the light emitting unit is connected with a first connection portion, and the rail box unit is connected with a second connection portion.

From the above, the guide rail spotlight provided with the rotation adjusting unit has simple adjustment of the illumination pitching angle of the light emitting unit, and the adjusted illumination pitching angle of the light emitting unit is not easy to change.

In order to achieve still another object of the present utility model, the present utility model provides a lighting system, including a rail, and at least one rail spotlight as described above, wherein the rail box unit is detachably connected to the rail, the rail box unit is slidable along an extending direction of the rail relative to the rail, and the rail box unit is electrically connected to the rail.

From the above, the lighting system provided with the guide rail spotlight is simple to operate when adjusting the lighting pitching angle of the lighting unit of the guide rail spotlight, and the adjusted lighting pitching angle of the lighting unit is not easy to change, and in addition, the production and processing of the guide rail spotlight can be simplified, and the production cost is reduced.

Drawings

Fig. 1 is a block diagram of a first view of a first embodiment of a rail spotlight according to the utility model.

Fig. 2 is a block diagram of a first embodiment of a track lamp according to the present utility model at a second viewing angle.

Fig. 3 is an exploded view of a first embodiment of the rail spotlight of the present utility model.

Fig. 4 is an enlarged view at a in fig. 3.

Fig. 5 is a block diagram of a first embodiment of the rail projector of the present utility model at a third view angle.

Fig. 6 is an exploded view of a conventional track spot lamp.

The utility model is further described below with reference to the drawings and examples.

Detailed Description

First embodiment of the track spotlight

Referring to fig. 1 and 2, the track spot lamp 100 includes a rotation adjusting unit 1, a light emitting unit 2, and a track box unit 3, the rotation adjusting unit 1 being connected between the light emitting unit 2 and the track box unit 3.

Referring to fig. 3 and 4, the rotation adjusting unit 1 includes a rotation seat 11, a base 12, a face cover 13, a connection module 14, and an end cap 15. The rotating seat 11 is provided with a first connecting part 111, and the first connecting part 111 is used for being fixedly connected with the light-emitting unit 2, so that the light-emitting unit 2 can adjust the pitching angle of self illumination through the rotating seat 11.

The first end of the base 12 is provided with a second connecting portion 1212, and the second connecting portion 1212 is configured to be connected to the rail box unit 3, so that the rotation adjusting unit 1 can drive the light emitting unit 2 to rotate relative to the rail box unit 3, so as to adjust the illumination position of the light emitting unit 2. Preferably, the second connecting portion 1212 has a circular hole, and the rail box unit 3 has a rotation shaft 31, the rotation shaft 31 being rotatably installed in the circular hole around its own rotation axis. The base 12 has a first receiving cavity 1211, and the first receiving cavity 1211 can be used to receive the power module 1213, so that the power module 1213 has a better installation space, and the rail spotlight 100 can meet the high-power use requirement, and is also beneficial to heat dissipation of the power module 1213. The power module 1213 is electrically connected to the light source of the light emitting unit 2 and the connection terminal 32 of the rail box unit 3, respectively.

The cover 13 is detachably mounted on the base 12, and the cover 13 is covered on the opening of the first accommodation chamber 1211 to properly prevent external dust from entering the first accommodation chamber 1211, thereby preventing damage to the electronic components in the first accommodation chamber 1211. Preferably, the heat dissipation groove 131 is provided on the cover 13 to enhance the heat dissipation effect on the power module 1213 and other electronic components in the first accommodating cavity 1211, further prolong the service life of the power module 1213 and other electronic components, and enhance the working stability of the power module 1213. Of course, the heat dissipation grooves may be provided on the base 12 alone or on both the cover 13 and the base 12.

The connection module 14 comprises a bolt 141, a damping sheet 142, a first flat washer 143 and a first spring washer 144, wherein the bolt 141 is connected with the rotation seat 11, the bolt 141 is further connected with the second end of the base 12, the rotation seat 11 can rotate relative to the base 12 around the axis of the bolt 141, the damping sheet 142 is adjacent between the rotation seat 11 and the base 12, and the damping sheet 142 prevents the rotation seat 11 from rotating relative to the base 12.

Preferably, in the present embodiment, the second end of the base 12 has two first connection lugs 122, the two first connection lugs 122 are distributed along the axial direction of the bolt 141, and a first accommodating position is formed between the two first connection lugs 122 and the first body 121 of the base 12. Wherein, the first accommodation chamber 1211 and the second connection portion 1212 are both formed on the first body 121. At least a part of the rotary seat 11 is located in the first accommodation position, and both ends of the rotary seat 11 are provided with a concave hole 12 and a third screw hole 13 in the axial direction of the bolt 141. The number of the connecting modules 14 is two, and the two connecting modules 14 correspond to the two first connecting lugs 122 one by one. The bolt 141 of the connection module 14 passes through a corresponding first connection lug 122 and a corresponding concave hole 12 on the rotating seat 11 and then is in threaded connection with a corresponding third threaded hole 13 on the rotating seat 11, the damping sheet 142 of the connection module 14 is adjacent between the corresponding first connection lug 122 and the rotating seat 11, preferably, a part of the damping sheet 142 is located in the concave hole 12, the rest is located outside the concave hole 12, and the damping sheet 142 is in a ring shape and sleeved on the bolt 141. The design can ensure the stability and reliability of the connection between the rotating seat 11 and the base 12, and can optimize the structure of the rotating adjusting unit 1 more so as to enable the volume of the rotating adjusting unit 1 to be smaller under the premise of meeting the use requirement, thereby improving the flexibility of the guide rail spotlight 100 provided with the rotating adjusting unit 1.

Furthermore, the first connecting lug 122 preferably has a second receiving chamber 1221, the second receiving chamber 1221 being recessed in the axial direction of the bolt 141 from the outer side of the first connecting lug 122 toward the inside of the first connecting lug 122, the end of the bolt 141 being located in the second receiving chamber 1221. The first flat washer 143 and the first spring washer 144 are both positioned in the second accommodating cavity 1221, the first flat washer 143 is sleeved on the bolt 141, the first flat washer 143 is adjacent between the first connecting lug 122 and the end head of the bolt 141, the first flat washer 143 can prevent the bolt 141 from loosening, and the tightness of the connection between the bolt 141 and the rotating seat 11 is ensured; the first spring washer 144 is sleeved on the bolt 141, and the first spring washer 144 is abutted between the first flat washer 143 and the first connection lug 122 to further prevent the bolt 141 from loosening.

Further, each first connection lug 122 is provided with a first threaded hole 1222, the first threaded holes 1222 extend along the radial direction of the bolts 141 and are communicated with the second accommodating cavity 1221, the first threaded holes 1222 are internally provided with first set screws 145, the conical ends of the first set screws 145 are adjacent to the bolts 141, and the first set screws 145 play a role in preventing the bolts 141 from rotating, so that the rotating seat 11 after the angle adjustment is further prevented from rotating relative to the base 12, and the service stability of the rotating adjustment unit 1 is improved better.

The number of the end caps 15 is two, two end caps 15 are in one-to-one correspondence with two first connecting lugs 122, at least one part of one end cap 15 is installed in the second accommodating cavity 1221 of the corresponding one first connecting lug 122, the end cap 15 can seal the second accommodating cavity 1221 to prevent external dust from entering the base 12 so as to protect parts in the base 12, and meanwhile, the arrangement of the end caps 15 can also promote the aesthetic property of the rotation adjusting unit 1. Preferably, the first connecting lug 122 is further provided with a through groove 1223, the through groove 1223 communicates with the first accommodation chamber 1211 and the second accommodation chamber 1221, a through hole 1411 is provided in the middle of the bolt 141, the through hole 1411 penetrates the bolt 141 in the axial direction of the bolt 141, the end cap 15 has a plug portion 151 and a head 152, the plug portion 151 is mounted in the second accommodation chamber 1221, the plug portion 151 has a notch 1511, the notch 1511 communicates with the through groove 1223 and the second accommodation chamber 1221, the design enables the cable of the power module 1213 to enter the light emitting unit 2 from the first accommodation chamber 1211 through the through groove 1223, the notch 1511 and the through hole 1411, the cable is prevented from being exposed outside the guide rail spotlight 100, the protection of the cable is protected, and the overall aesthetic property of the guide rail spotlight 100 is improved.

When the pitching angle of the illumination of the light-emitting unit 2 needs to be adjusted, the rotary seat 11 can be pulled to rotate relative to the base 12 so as to adjust the pitching angle of the illumination of the light-emitting unit 2; after the adjustment of the pitching angle of the illumination of the light emitting unit 2 is completed, the bolt 141 can be locked by adjusting the first set screw 145, so that the position of the adjusted rotating seat 11 can be better prevented from being changed, and the use stability of the rotating adjusting unit 1 can be improved.

In summary, through the design of the rotation adjusting unit, when the pitching angle of the illumination of the light emitting unit is adjusted every time, the adjusting bolt does not need to be screwed, so that the abrasion of the bolt, the rotating seat or the base is prevented from being aggravated; in addition, the damping between the rotating seat and the base is increased through the damping sheet, so that the easy change of the pitching angle of the adjusted light-emitting unit is avoided, and the use stability of the rotating adjusting unit is improved; furthermore, the design of the rotation adjusting unit can simplify the production and processing of the rotation adjusting unit and the light emitting unit, and the production cost is reduced.

Second embodiment of the guide track spotlight

The difference between this embodiment and the first embodiment of the track spot lamp is the structure of the rotating base, the structure of the base, and the structure of the bolts, and specifically, the following description is given for the difference:

the design of the second connecting lug on the base is canceled, and the design of the concave hole and the third threaded hole on the rotating seat is canceled. The second end of the base is provided with a connecting protrusion, and the two ends of the connecting protrusion are respectively provided with a second concave hole and a fourth threaded hole in the axial direction of a bolt of the connecting module; in addition, be provided with the wire casing on the connection arch, the wire casing runs through the base and with first accommodation chamber intercommunication. The rotating seat is provided with two second connecting lugs, a second containing position is formed between the two second connecting lugs and the second body of the rotating seat, and at least one part of the connecting protrusion is located in the second containing position. The quantity of connecting the module is two sets of, and two sets of connecting the module in two second engaging lugs one-to-one, connect the module behind the corresponding one second engaging lug of bolt pass, the corresponding one second shrinkage pool on the protruding and corresponding one fourth screw hole threaded connection on the protruding of connection, the damping fin of connecting the module is adjacent between corresponding one second engaging lug and the protruding of connection, preferably, the damping fin is annular setting, and the damping fin winds and establishes on the bolt, and a part of damping fin is located the second shrinkage pool, and the remainder is located outside the second shrinkage pool. The connecting module further comprises a second flat washer and a second spring washer, the second flat washer and the second spring washer are sleeved on the bolt, the second flat washer is adjacent between the second spring washer and the end head of the bolt, the second spring washer is adjacent to a second connecting lug, a second threaded hole extending along the bolt is formed in the second connecting lug, a second set screw is arranged in the second threaded hole, and the second set screw is adjacent to the bolt.

Further, a third receiving cavity may be provided on the second connecting lug such that the end of the bolt, the second flat washer and the second spring washer are all located in the third receiving cavity, and the rotation adjustment unit further includes a second end cap, at least a portion of the second end mold being mounted in the third receiving cavity. Therefore, the connection structure among the rotating seat, the base and the connection module can be subjected to change design of applicability according to design production requirements, so that the setting of the rotating adjusting unit is more flexible.

Lighting system embodiment

The lamplight system comprises a guide rail and at least one guide rail spotlight, wherein the guide rail spotlight is the guide rail spotlight in the first embodiment or the second embodiment of the guide rail spotlight. The guide rail box unit of the guide rail spotlight is detachably connected with the guide rail, the guide rail box unit can slide relative to the guide rail along the extending direction of the guide rail, and the wiring terminal of the guide rail box unit is electrically connected with the conductive sheet in the guide rail, so that the guide rail is used for supplying power for the guide rail spotlight. The lighting system provided with the guide rail spotlight is simple to operate when adjusting the lighting pitching angle of the lighting unit of the guide rail spotlight, and the lighting pitching angle of the adjusted lighting unit is not easy to change, and in addition, the production and processing of the guide rail spotlight can be simplified, and the production cost is reduced.

Finally, it should be emphasized that the foregoing description is merely illustrative of the preferred embodiments of the utility model, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any such modifications, equivalents, improvements, etc. are intended to be included within the scope of the utility model.

Claims

1. Rotation adjusting unit, characterized by, include:

the rotating seat is provided with a first connecting part;

the first end of the base is provided with a second connecting part, and the base is provided with a first accommodating cavity;

the surface cover is detachably arranged on the base and covers the opening of the first accommodating cavity;

the connecting module comprises a bolt and a damping fin, the bolt is connected with the rotating seat, the bolt is also connected with the second end of the base, the rotating seat can rotate around the axis of the bolt relative to the base, the damping fin is adjacent between the rotating seat and the base, and the damping fin blocks the rotating seat from rotating relative to the base.

2. The rotation adjustment unit according to claim 1, characterized in that:

the second end of the base is provided with two first connecting lugs, a first accommodating position is formed between the two first connecting lugs and the first body of the base, and at least one part of the rotating seat is positioned in the first accommodating position;

the number of the connecting modules is two, the two connecting modules are in one-to-one correspondence with the two first connecting lugs, the bolts of the connecting modules penetrate through the corresponding first connecting lugs and are in threaded connection with the rotating seat, and the damping fins of the connecting modules are adjacent between the corresponding first connecting lugs and the rotating seat.

3. The rotation adjustment unit according to claim 2, characterized in that:

4. A rotation adjustment unit according to claim 3, characterized in that:

the connecting module further comprises a first spring gasket, the first spring gasket is sleeved on the bolt, and the first spring gasket is adjacent between the first flat gasket and the first connecting lug.

5. The rotation adjustment unit according to claim 2, characterized in that:

the first connecting lug is provided with a first threaded hole which extends along the radial direction of the bolt;

a first set screw is arranged in the first threaded hole and is abutted to the bolt.

6. The rotation adjustment unit according to any one of claims 2 to 5, characterized in that:

the first connecting lug is provided with a second accommodating cavity, the second accommodating cavity is recessed in the first connecting lug from the outer side surface of the first connecting lug in the axial direction of the bolt, and the end head of the bolt is positioned in the second accommodating cavity;

the rotation adjusting unit further comprises two end caps, wherein the two end caps are in one-to-one correspondence with the two first connecting lugs, and at least one part of one end cap is installed in the second accommodating cavity of the corresponding first connecting lug.

7. The rotation adjustment unit according to claim 6, characterized in that:

the first connecting lug is provided with a through groove which is communicated with the first accommodating cavity and the second accommodating cavity;

the middle part of the bolt is provided with a through hole, and the through hole penetrates through the bolt in the axial direction of the bolt;

the end cap is provided with a plug part and a head part, the plug part is arranged in the second accommodating cavity, the plug part is provided with a notch, and the notch is communicated with the through groove and the second accommodating cavity.

8. The rotation adjustment unit according to claim 1, characterized in that:

the second end of the base is provided with a connecting protrusion;

the rotating seat is provided with two second connecting lugs, a second containing position is formed between the two second connecting lugs and the second body of the rotating seat, and at least one part of the connecting protrusion is positioned in the second containing position;

the number of the connecting modules is two, the two groups of the connecting modules are in one-to-one correspondence with the two second connecting lugs, the bolts of the connecting modules penetrate through the corresponding second connecting lugs and are in threaded connection with the connecting protrusions, and the damping fins of the connecting modules are adjacent between the corresponding second connecting lugs and the connecting protrusions;

the connecting module further comprises a second flat washer and a second spring washer, the second flat washer and the second spring washer are sleeved on the bolt, the second flat washer is adjacent between the second spring washer and the end head of the bolt, the second spring washer is also adjacent to the second connecting lug, a second threaded hole extending along the bolt is formed in the second connecting lug, a second set screw is arranged in the second threaded hole, and the second set screw is adjacent to the bolt.

9. A track spot light comprising a light emitting unit and a track box unit, characterized by further comprising a rotation adjusting unit according to any one of claims 1 to 8, said light emitting unit being connected to said first connection portion, said track box unit being connected to said second connection portion.

10. The lighting system comprising a guide rail, and further comprising at least one guide rail spot lamp according to claim 9, wherein the guide rail box unit is detachably connected to the guide rail, the guide rail box unit is slidable along the extending direction of the guide rail relative to the guide rail, and the guide rail box unit is electrically connected to the guide rail.