Track structure with hidden light trough

Abstract

The present invention discloses a track structure with a hidden lamp trough, comprising a track body, a lamp installation structure connected to the track body, and a track extension structure connected to the track body; a first curtain track is arranged at the lower end of the track body, the first curtain track is an arc-shaped structure, a second curtain track connected to the first curtain track is arranged at the bottom of the track extension structure, and the second curtain track is tangent to the first curtain track; the lamp installation structure is installed at one end of the track body that is farther from the track extension structure, a third curtain track is arranged at the bottom of the lamp installation structure, and a hidden lamp trough is arranged on the side of the lamp installation structure. The hidden lamp trough is used to achieve better light gathering, and the sliding connection of the curtain achieves better movement. The end closure structure can effectively limit the movement range of the curtain, so that the curtain is not easy to derail, which greatly facilitates the operation and is also convenient for the user to control the light intensity.

Description

Technical Field

[0001] The invention relates to the field of curtain products, and in particular to a track structure with a concealed light trough. Background Art

[0002] In daily life, curtains, as a kind of decoration on windows, have become an indispensable daily necessity for people to block the sun and adjust the brightness of indoor light. Curtains are installed on windows, and the brightness of indoor light is adjusted by opening and closing the curtains, adding a sense of comfort and beauty to people's lives. However, the curtains on the market are unstable, easy to get stuck, difficult to pull the curtains, and cannot be combined with lighting. Users cannot conveniently control the light intensity in special occasions (such as hospitals), which brings troubles to patients.

[0003] The information disclosed in this background technology section is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to those skilled in the art. Summary of the invention

[0004] In order to meet the above requirements, an object of the present invention is to provide a track structure for concealing a lamp trough.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A track structure with a concealed lamp trough comprises a track body, a lamp installation structure connected to the track body, and a track expansion structure connected to the track body;

[0007] A first curtain track is provided at the lower end of the track body, the first curtain track is an arc-shaped structure, a second curtain track connected to the first curtain track is provided at the bottom of the track extension structure, and the second curtain track is tangent to the first curtain track;

[0008] An end closing structure is provided at the end of the track extension structure, the end closing structure abuts against the end of the second curtain track, and the end closing structure is used to close the second curtain track;

[0009] The lamp installation structure is installed at one end of the track body farther than the track extension structure. A third curtain track is provided at the bottom of the lamp installation structure. A concealed lamp trough is provided on the side of the lamp installation structure. A lampshade is installed in the concealed lamp trough, and an angle is formed between the concealed lamp trough and the lampshade.

[0010] In a possible implementation manner, the first curtain rail is installed with a belt transmission mechanism, and the belt transmission mechanism is used to drive the curtain to move.

[0011] In a possible implementation, the track body is connected to at least two lamp mounting structures, a fourth curtain track is provided at the lower end of the track body, the fourth curtain track is connected to the third curtain track, and the fourth curtain track is provided with a seal for closing the third curtain track.

[0012] In a possible embodiment, a connecting groove is provided at the upper end of the track extension structure, and the track body is provided with a mounting protrusion corresponding to the connecting groove, the mounting protrusion is installed in the connecting groove, and the mounting protrusion and the connecting groove are both provided with a through hole, and a fastener is installed in the through hole.

[0013] In a possible implementation manner, at least two clamping structures are provided at one end of the track body close to the track extension structure, and the spacing between the clamping structures is the width of the track extension structure.

[0014] In a possible implementation manner, the track extension structure has a conical profile and is provided with a plurality of suspension grooves, and the suspension grooves are used to provide suspension positions.

[0015] In a possible implementation manner, the end closing structure includes a closing portion connected to the second curtain track, and a connecting portion used to be connected to the track extension structure.

[0016] In a possible embodiment, the connecting portion is provided with a connecting protrusion for connecting to the connecting groove, the connecting protrusion is installed in the connecting groove, and the connecting portion is provided with at least two clamping protrusions for fixing the end closing structure to the track expansion structure, and the spacing between the clamping protrusions is the width of the track expansion structure.

[0017] In a possible implementation, the first curtain rail, the second curtain rail, and the third curtain rail all include a downwardly open sliding cavity, a rail is installed in the sliding cavity, and the rail is provided with a locking groove facing the upper end surface of the sliding cavity.

[0018] In a possible implementation manner, the first curtain rail, the second curtain rail, and the third curtain rail are all installed with pulley assemblies, and the pulley assemblies are installed with curtains.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the track structure of the present invention includes a track body, a lamp mounting structure connected to the track body, and a track expansion structure connected to the track body; the track body can be installed with a pulley assembly fixed with a curtain, the lamp can be set on the lamp mounting structure, and a concealed lamp trough is used to achieve better light gathering. In addition, due to the sliding connection of the curtain, better movement is achieved. The end closing structure can effectively limit the movement range of the curtain, making it difficult for the curtain to derail, greatly facilitating the operation, and also making it easier for the user to control the light intensity.

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a specific embodiment of a track structure for concealed light troughs proposed in this application;

[0022] Figure 2 This is a schematic structural diagram of another combined embodiment of a track structure for concealed light troughs proposed in this application;

[0023] Figure 3 This is a schematic structural diagram of another combined embodiment of a track structure for concealed light troughs proposed in this application;

[0024] Figure 4 This is a bottom view schematic diagram of an embodiment of a track structure with a hidden light trough proposed in the present application;

[0025] Figure 5 A bottom view schematically showing another combined structural embodiment of a track structure with a concealed light trough proposed in the present application;

[0026] Figure 6 A bottom view schematically showing another combined structural embodiment of a track structure with a concealed light trough proposed in the present application;

[0027] Figure 7 This is a schematic diagram of the end closure structure of a track structure with a hidden light trough proposed in this application;

[0028] Figure 8 Another axial schematic diagram of the end closing structure of the track structure with hidden light trough proposed in the present application;

[0029] Fig. 9 A bottom view schematic diagram of an end closing structure of a track structure with a concealed light trough proposed in the present application;

[0030] Fig.10 A front view schematic diagram of a track extension structure of a track structure with a hidden light trough proposed in this application;

[0031] Fig.11 A right side schematic diagram of a lamp installation structure with a track structure concealing a lamp trough proposed in the present application;

[0032] Fig.12 This is a schematic structural diagram of another embodiment of a track structure for concealed light troughs proposed in this application;

[0033] Fig.13 This is a schematic diagram of the axis of a pulley assembly of a track structure with a hidden lamp trough proposed in the present application;

[0034] Fig.14This is a front view schematic diagram of a pulley assembly of a track structure with a concealed lamp trough proposed in the present application.

[0035] Reference numerals

[0036] 100 Track body 101 Lighting fixture installation structure

[0037] 102 Track extension structure 103 First curtain track

[0038] 104 second curtain track 105 end closing structure

[0039] 106 Third curtain track 107 Concealed light trough

[0040] 108 Lampshade 109 Fourth curtain track

[0041] 110 Sealing 111 Pulley Assembly

[0042] 112 connection groove 113 installation protrusion

[0043] 114 through hole 115 clamping structure

[0044] 116 Sliding cavity 117 Track

[0045] 118 slot 119 structural base

[0046] 120 pulley 121 suspension structure

[0047] 122 functional cavity 123 stopper

[0048] 124 Mounting hole 125 Connection part

[0049] 126 closing portion 127 installation cavity

[0050] 128 through hole 129 connecting protrusion

[0051] 130: fitting protrusion 131: supporting plate

[0052] 132 Clamping protrusion 133 Mounting hole

[0053] 134 Operation cavity 135 Lighting cavity

[0054] 136 Card structure 137 Connection plate

[0055] 138 Belt drive mechanism 139 Drive belt DETAILED DESCRIPTION

[0056] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0059] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; 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 present invention can be understood according to specific circumstances.

[0060] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily being directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0062] refer to Figure 1-Figure 14 , Figure 1 This is a schematic structural diagram of a specific embodiment of a track structure with a hidden light trough proposed in this application. Figure 2 This is a schematic structural diagram of another combined embodiment of a track structure with a hidden light trough proposed in this application. Figure 3 This is a schematic structural diagram of another combined embodiment of a track structure with a hidden light trough proposed in this application. Figure 4 This is a bottom view schematic diagram of an embodiment of a track structure with a hidden light trough proposed in this application. Figure 5 This is a bottom view of another embodiment of a track structure with a hidden light trough proposed in this application. Figure 6 This is a bottom view of another embodiment of a track structure with a hidden light trough proposed in this application. Figure 7 This is a schematic diagram of the end closure structure of a track structure with a hidden light trough proposed in this application. Figure 8 This is another axial schematic diagram of the end closing structure of the track structure with hidden light trough proposed in the present application. Fig. 9 This is a bottom view schematic diagram of an end closure structure of a track structure with a hidden light trough proposed in this application. Fig.10 This is a front view schematic diagram of a track extension structure of a track structure with a hidden light trough proposed in this application. Fig.11 This is a right side schematic diagram of a lamp installation structure with a track structure concealing a lamp trough proposed in this application. Fig.12 This is a schematic structural diagram of another embodiment of a track structure with a hidden light trough proposed in this application. Fig.13 This is a schematic diagram of the axis of a pulley assembly of a track structure with a hidden lamp trough proposed in this application. Fig.14 This is a front view schematic diagram of a pulley assembly of a track structure with a concealed lamp trough proposed in the present application.

[0063] The track structure of the hidden lamp trough includes a track body 100, a lamp installation structure 101 connected to the track body 100, and a track expansion structure 102 connected to the track body 100;

[0064] A first curtain rail 103 is provided at the lower end of the track body 100. The first curtain rail 103 is an arc-shaped structure. A second curtain rail 104 connected to the first curtain rail 103 is provided at the bottom of the track extension structure 102. The second curtain rail 104 is tangent to the first curtain rail 103. A better track connection is achieved by adopting a tangent method, which helps the pulley assembly installed on the curtain rail to slide and prevent jamming.

[0065] An end closing structure 105 is provided at the end of the track extension structure 102, and the end closing structure 105 abuts against the end of the second curtain track 104. The end closing structure 104 is used to close the second curtain track 104, which can prevent the pulley assembly with the curtain installed from sliding out of the curtain track, thereby ensuring user convenience.

[0066] In one embodiment, in order to achieve lighting, the lamp installation structure 101 is installed at one end of the track body 100 that is farther from the track extension structure 102, a third curtain track 106 is provided at the bottom of the lamp installation structure 101, and a hidden lamp trough 107 is provided on the side of the lamp installation structure 101, and a lampshade 108 is installed on the hidden lamp trough 107, and an angle is formed between the hidden lamp trough 107 and the lampshade 108. The hidden lamp trough 107 is installed with a lamp (not shown in the figure).

[0067] In certain embodiments, such as Figure 2 , 3 As shown in Figures 5 and 6, the track body 100 is connected to at least two lamp installation structures 101, and a fourth curtain track 109 is provided at the lower end of the track body 100. The fourth curtain track 109 is connected to the third curtain track 106, and the fourth curtain track 109 is provided with a seal 110 for closing the third curtain track 106, wherein the seal 110 can be used to close the fourth curtain track 109 to prevent the pulley assembly 111 installed on the fourth curtain track 109 from sliding out, thereby achieving better stability. The first curtain track 103, the second curtain track 104, the third curtain track 106, and the fourth curtain track 109 are all installed with a pulley assembly 111, and the pulley assembly 111 is installed with curtains.

[0068] In one embodiment, the upper end of the track extension structure 102 is provided with a connection groove 112, and the track body 100 is provided with a mounting protrusion 113 corresponding to the connection groove 112, and the mounting protrusion 113 is installed in the connection groove 112, and the mounting protrusion 113 and the connection groove 112 are both provided with a through hole 114, and a fastener is installed in the through hole 114, wherein the track body 100 uses the fastener and the cooperation of the mounting protrusion 113 and the connection groove 112 to achieve a stable connection with the track extension structure 102. Since the cooperation of the single mounting protrusion 113 and the connection groove 112 cannot be completely fixed, at least two clamping structures 115 are provided at one end of the track body 100 close to the track extension structure 102, and the spacing of the clamping structures 115 is the width of the track extension structure 102, and the track extension structure 102 is clamped and fixed by the clamping structures 115, thereby further achieving a fixing effect.

[0069] In some embodiments, the track extension structure 102 has a conical profile, and the track extension structure 102 is provided with a plurality of suspension grooves, wherein the suspension grooves are used to provide suspension positions, wherein Figure 3 as well as Figure 6 As shown, the hanging groove can be installed with a port closing structure 105 and a track extension structure 102 connected to the port closing structure 105, which can further expand the range of the curtain track to achieve a larger curtain coverage and can adapt to various medical occasions.

[0070] In some embodiments, the first curtain rail 103, the second curtain rail 104, and the third curtain rail 106 all include a downwardly open sliding cavity 116, and the sliding cavity 116 is installed with a track 117, and the track 117 is provided with a locking groove 118 facing the upper end surface of the sliding cavity 116. The first curtain rail 103, the second curtain rail 104, and the third curtain rail 106 are all installed with a pulley assembly, and the pulley assembly is installed with a curtain.

[0071] Since this application requires a pulley assembly to realize the movement of the curtain, the structure of the pulley assembly is now specifically described:

[0072] like Fig.13 as well as Fig.14 As shown, the pulley assembly 111 includes a structural base 119, a pulley 120 mounted on the structural base 119, and a hanging structure 121 for hanging curtains;

[0073] The structural base 119 is provided with a functional cavity 122 for the pulley 120 to rotate, and the structural base 119 is provided with a stopper 123 for protecting the pulley 120, and the stopper 123 is provided with a mounting hole 124, and the pulley 120 is mounted in the mounting hole 124 through a rotating shaft, so that the pulley 120 can rotate, thereby completing the movement of the pulley assembly 111;

[0074] The pulley 120 needs to be kept stable during operation. The functional cavity 122 is provided with a track 117, and the track 117 is provided with a positioning groove 118. The pulley 120 is installed in the positioning groove 118. Fig.13 As shown, the track 117 is spaced from the bottom of the functional cavity 122 to prevent interference with the rotation of the pulley 120. Both ends of the positioning groove 118 are fillets for connecting with the pulley 120. Since the pulley 120 is an arc-shaped surface, the use of a fillet structure can facilitate the fit and connection between the two. Among them, the suspension structure 121 is provided with a suspension hole, which can be used to install curtains. The track 117 is located between the pulley 120 and the bottom of the functional cavity 122, which can achieve a good sliding connection and avoid unnecessary contact with the pulley assembly 11.

[0075] like Fig.13 as well as Fig.14 As shown, the number of the pulleys 120 is 4, and correspondingly, the number of the stoppers 123 is 4, and the number of the mounting holes 124 is 4.

[0076] As a preferred embodiment, there is a spacing between the pulleys 120, which can be used to install the track 117.

[0077] In some embodiments, the track 117 is connected to an end closing structure 105, which can be used to close the track 117 to prevent the pulley assembly 11 from derailing.

[0078] Since the present application requires the end closing structure 105 to realize the movement and position limitation of the curtain, the structure of the end closing structure 105 is now specifically described:

[0079] The end closing structure 105 includes a connecting portion 125 connected to the track 117, and a closing portion 126 for closing the track 117; the connecting portion 125 is provided with an installation cavity 127, and the closing portion 126 is installed in the installation cavity 127, and the connecting portion 125 and the closing portion 126 are both provided with a through hole 128, and the closing portion 126 is fixedly connected to the connecting portion 125 by a fastener; a connecting protrusion 129 is provided at the upper end of the connecting portion 125, and the length of the connecting protrusion 129 is longer than the length of the connecting portion 125, wherein the protruding portion of the connecting protrusion 129 is used to connect with the connecting groove 112 at the upper end of the track extension structure 102, so as to achieve the fixation of the two.

[0080] The closing portion 126 is provided with an interlocking protrusion 130 connected to the track 117. The number of the interlocking protrusions 130 is at least 2. There is a spacing between the interlocking protrusions 130. The interlocking protrusions are used to fix the closing portion 126 to the locking groove 118 of the track 117 to achieve a fixed connection and prevent the pulley assembly 111 from slipping out.

[0081] In one embodiment, in order to further achieve the fixing of the end closure structure 105 and the track expansion structure 102, a support plate 131 is provided at the bottom of the connection portion 125, and the support plate 131 is used to connect with the track expansion structure 102 to achieve a complete profile. The number of the support plates 131 is 2, and the support plates 131 are distributed on both sides of the connection portion. A clamping protrusion 132 is provided at the position where the support plate 131 is connected to the connection portion 125, and the number of the clamping protrusion 132 is 2. The length of the clamping protrusion 132 is longer than that of the connection portion 125, wherein the protruding portion of the clamping protrusion 132 can be used to connect with the track expansion structure 102 to achieve the fixation of the two.

[0082] In some embodiments, the connecting portion 125 is provided with a mounting hole 133 at one end thereof which is farther from the clamping protrusion 132. The mounting hole 133 is used to fix the connecting portion 125. Specifically, the connecting portion 125 can be fixed at other positions, such as Figure 3 As shown, it is convenient for users to combine and use.

[0083] In some embodiments, the closing portion 126 is provided with an operating cavity 134 , and the operating cavity 134 is provided with an opening toward the bottom, and a user can remove or install the closing portion 126 through the operating cavity 134 .

[0084] In some embodiments, since the connection part 125 needs to be made of metal material and the curtain system cannot bear too much weight, the connection part 125 is provided with a weight-reducing hole to achieve overall weight reduction.

[0085] On the other hand, since the present application requires the lamp installation structure 101 to realize the combination of the curtain and the lamp, the structure of the lamp installation structure 101 is now specifically described:

[0086] The lamp installation structure 101 includes a structural body, a lamp installed on the structural body (not shown in the figure), and a lampshade 108 for protecting the lamp; the structural body is provided with a lamp cavity 135, and the angle between the center line of the lamp cavity 135 and the lampshade 108 is an acute angle, and the lamp cavity 135 is provided with a concealed lamp trough 107, and the lamp is installed in the concealed lamp trough 107.

[0087] The structure of the concealed lamp trough 107 is as follows:

[0088] Two non-contacting positioning structures 136 are provided at the end of the lamp cavity 135. The positioning structures 135 have an angle with each other. The positioning structures 136 and the lamp cavity 135 form a hidden lamp trough 107 with a diffuser port. The diffuser port faces the lampshade. Combined with the structure that the lamp cavity 135 is made of reflective material, the light of the lamp can be gathered on the lampshade to achieve a better focusing effect.

[0089] In one embodiment, the lamp cavity 135 is provided with an installation position for installing the lampshade 108 , and the lampshade 108 is snap-fitted with the installation position for easy disassembly and installation.

[0090] A sliding cavity 116 is provided at the lower end of the structural body, and a track 117 is installed in the sliding cavity 116. The track 117 is provided with a locking groove 118 facing the upper end surface of the sliding cavity 116; the track 117 is fixed to the lower end of the sliding cavity 116 through a connecting plate 137, and a distance is provided between the locking groove 118 and the upper end surface of the sliding cavity 116.

[0091] In certain embodiments, such as Fig.12 As shown, the first curtain rail 103 is installed with a belt transmission mechanism 138, and the belt transmission mechanism 138 is used to drive the curtain to move. Specifically, the belt transmission mechanism 138 is provided with a transmission belt 139, and the pulley assembly 111 is fixedly connected to the transmission belt. When the belt transmission mechanism 138 drives the transmission belt to move, the pulley assembly 111 is driven to move.

[0092] In summary, the track structure of the present invention includes a track body, a lamp mounting structure connected to the track body, and a track expansion structure connected to the track body. The track body can be installed with a pulley assembly with a curtain fixed thereon, and the lamp can be set on the lamp mounting structure. The concealed lamp trough is used to achieve better light gathering, and the sliding connection of the curtain achieves better movement. The end closing structure can effectively limit the movement range of the curtain, making it difficult for the curtain to derail, greatly facilitating the operation and making it easier for the user to control the light intensity.

[0093] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the present invention.

Claims

1. A track structure with a concealed light trough, characterized in that: It includes a track body, a lamp installation structure connected to the track body, and a track expansion structure connected to the track body; A first curtain track is provided at the lower end of the track body, the first curtain track is an arc-shaped structure, a second curtain track connected to the first curtain track is provided at the bottom of the track extension structure, and the second curtain track is tangent to the first curtain track; An end closing structure is provided at the end of the track extension structure, the end closing structure abuts against the end of the second curtain track, and the end closing structure is used to close the second curtain track; The lamp installation structure is installed at one end of the track body that is farther from the track extension structure. A third curtain track is provided at the bottom of the lamp installation structure. A concealed lamp trough is provided on the side of the lamp installation structure. A lampshade is installed on the concealed lamp trough. An angle is formed between the concealed lamp trough and the lampshade. The track body is connected to at least two lamp installation structures, and a fourth curtain track is provided at the lower end of the track body, the fourth curtain track is connected to the third curtain track, and the fourth curtain track is provided with a seal for closing the third curtain track; The upper end of the track extension structure is provided with a connecting groove, the track body is provided with a mounting protrusion corresponding to the connecting groove, the mounting protrusion is installed in the connecting groove, the mounting protrusion and the connecting groove are both provided with through holes, and fasteners are installed in the through holes.

2. The track structure of the concealed light trough according to claim 1, characterized in that: The first curtain rail is equipped with a belt transmission mechanism, and the belt transmission mechanism is used to drive the curtain to move.

3. The track structure of the concealed light trough according to claim 1, characterized in that: At least two clamping structures are provided at one end of the track body close to the track extension structure, and the spacing between the clamping structures is the width of the track extension structure.

4. The track structure of the concealed light trough according to claim 3, characterized in that: The track extension structure has a conical profile and is provided with a plurality of suspension grooves, and the suspension grooves are used to provide suspension positions.

5. The track structure of the concealed light trough according to claim 4, characterized in that: The end closing structure comprises a closing portion connected to the second curtain track and a connecting portion used to be connected to the track extension structure.

6. The track structure of the concealed light trough according to claim 5, characterized in that: The connecting portion is provided with a connecting protrusion for connecting with the connecting groove, the connecting protrusion is installed in the connecting groove, and the connecting portion is provided with at least two clamping protrusions for fixing the end closing structure to the track expansion structure, and the spacing between the clamping protrusions is the width of the track expansion structure.

7. The track structure of the concealed light trough according to claim 1, characterized in that: The first curtain rail, the second curtain rail and the third curtain rail all include a sliding cavity opening downwards, a rail is installed in the sliding cavity, and the rail is provided with a locking groove facing the upper end surface of the sliding cavity.

8. The track structure of the concealed light trough according to claim 7, characterized in that: The first curtain rail, the second curtain rail and the third curtain rail are all equipped with pulley assemblies, and curtains are installed on the pulley assemblies.

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