CN113931370A - Keel track, splicing track and ceiling keel system - Google Patents

Abstract

The invention relates to the technical field of ceiling rails, in particular to a keel rail, a splicing rail and a ceiling keel system. Keel rail for a suspended ceiling, comprising: a track body; the first pulley supporting piece is arranged on one side surface of the track body; the suspension piece is arranged on one side surface of the track body, which is far away from the first pulley support piece; wherein, the end of track body is provided with the connecting hole groove. The splicing track comprises at least two keel tracks; and the connecting piece is arranged on the connecting hole groove and used for connecting the adjacent tracks. The embodiment is a keel rail capable of being fixedly produced with a certain length in production, and when the keel rail is used, the keel rail can be connected into a required length through the connection hole and the connection structure, so that the keel rail is more flexible and convenient to install.

Description

Keel track, splicing track and ceiling keel system

Technical Field

The invention relates to the technical field of ceiling rails, in particular to a keel rail, a splicing rail and a ceiling keel system.

Background

The prior technical scheme for installing and applying the curtain, the curtain rail and the transfusion rail has two types. One is an open installation mode, the suspended ceiling keel and the keel slide rail are two sets of systems which are respectively independent, and the two sets of systems are complex in installation, long in construction period, poor in stability and safety and unattractive in space decoration vision; the second is the mounting mode of dark commentaries on classics, is the mode that suspended ceiling fossil fragments and fossil fragments slide rail combined together, realizes through suspended ceiling slide rail fossil fragments and slide rail corner subassembly, has solved the integration of slide rail suspended ceiling fossil fragments, but suspended ceiling slide rail fossil fragments, 90 slide rail corner structures are complicated, have 90 arc angles in suspended ceiling installation face, need cut during the suspended ceiling installation, have in the 90 slide rail corner structures in addition and connect the fixed angle and have about the directionality, increased the construction degree of difficulty.

In the process of implementing the invention, the inventor of the invention finds that: at present, the orbital relatively fixed length of current fossil fragments, need tailor according to actual conditions when the installation to mosaic structure is unstable, causes the not smooth and easy problem of concatenation position transition easily, also can't realize standardized production.

Disclosure of Invention

In view of the above-mentioned deficiencies of the prior art, it is a primary object of the present invention to provide a keel rail for a suspended ceiling, comprising:

a track body;

the first pulley supporting piece is arranged on one side surface of the track body;

the suspension piece is arranged on one side surface of the track body, which is far away from the first pulley support piece;

wherein, the end of track body is provided with the connecting hole groove.

It will be appreciated that the track body acts as the main body member of the keel track and that a first pulley support is provided on one side of the track body for the rollers to move thereon. And a suspension piece is arranged on one side surface of the track body, which is far away from the first pulley support piece, and is used for realizing suspension installation of the track body. In the embodiment, the two ends of the rail body are provided with connecting hole grooves, and the connecting hole grooves at the ends of the embodiment are used for realizing the disassembly and assembly of the adjacent keel rails.

The keel rail with a certain length can be fixedly produced in production, when the keel rail is used, the keel rail can be connected into a required length through the connecting hole groove and the connecting structure, and therefore the keel rail is more flexible and convenient to install.

Further, the connecting hole slot is a through hole which extends from one end of the rail body to the other end of the rail body and penetrates through the rail body.

Furthermore, the connecting hole grooves are concave grooves formed in two ends of the track body.

Furthermore, the end of the track body is provided with a mounting structure corresponding to the position of the connecting hole groove.

Further, the mounting structure comprises a threaded connection structure or a clamping structure.

Further, the track body is provided with a connecting component at the side close to the suspension part;

the connecting assembly comprises a hanging piece and is arranged on the track body; and a process for the preparation of a coating,

an extension support connected with the hanger.

The embodiment discloses a splicing track on one hand, which comprises at least two keel tracks; and a process for the preparation of a coating,

and the connecting piece is arranged on the connecting hole groove and used for connecting the adjacent rails.

Further, the connecting piece is detachably connected with the connecting hole groove.

This embodiment, through adjacent two set up the connecting piece between the fossil fragments track, can with fossil fragments rail connection is the concatenation track of an extension to can splice according to specific requirement.

In another aspect, an embodiment further discloses a ceiling keel system comprising any one of the splicing tracks;

and the rail connecting device is arranged between the adjacent splicing rails.

Further, the rail connecting device includes: a track body;

the second pulley supporting piece is arranged on one side surface of the track body;

the first clamping pieces are arranged at two ends of the track body;

wherein the rail body comprises a first rail;

and the second rails are arranged at two ends of the first rail.

The embodiment is that, in the suspended ceiling, the splicing track and the auxiliary keel form the frame body of the whole suspended ceiling, the roller can move on the splicing track, and a curtain, a hanging needle frame or a partition and the like can be arranged under the roller.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Figure 1 is a schematic view of a keel rail according to one embodiment of the invention;

figure 2 is a schematic view of a keel rail according to another embodiment of the invention;

figure 3 is a schematic view of a keel rail of yet another embodiment of the invention;

FIG. 4 is a schematic view of the invention from another perspective of FIG. 3;

FIG. 5 is a schematic illustration of a splice track of yet another embodiment of the present invention;

FIG. 6 is a schematic view of a track-joining apparatus according to an embodiment of the present invention;

FIG. 7 is a schematic view of another state of FIG. 6 of the present invention;

FIG. 8 is a schematic view of a decorative element according to an embodiment of the present invention;

figure 9 is a schematic view of a track attachment device in combination with a keel track according to one embodiment of the invention;

FIG. 10 is a schematic view of another state of FIG. 9 of the present invention;

fig. 11 is a schematic view of a splice track of another embodiment of the present invention.

Reference numerals:

1. a keel rail; 10. a track body; 11. a suspension member; 12. a connecting hole groove; 13. a first pulley support; 14. hanging and connecting pieces; 15. an extension support;

2. a rail connecting device; 20. a connecting body; 21. a first clip member; 22. a second pulley support; 23. a connecting member; 24. a second reinforcement; 25. a first reinforcement; 26. a notch; 27. a decorative member;

221. a second track; 222. a first track; 223. a gentle transition structure; 261. a first mounting member; 262. a second mount; 263. and (4) mounting the groove.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 or 2, a keel rail 1 for a suspended ceiling, comprises:

a rail body 10;

a first pulley support 13 provided at one side of the rail body 10;

a hanger 11 disposed on a side of the rail body 10 away from the first pulley support 13;

wherein, the end of the track body 10 is provided with a connecting hole slot 12.

It will be appreciated that the track body 10 serves as a main body member of the keel track 1, and a first pulley support 13 is provided on one side of the track body 10, the first pulley support 13 being for the rollers to move thereon. On a side of the track body 10 away from the first pulley support 13, a suspension 11 is disposed, and the suspension 11 is used for realizing suspension installation of the track body 10. In the embodiment, the two ends of the rail body 10 are provided with connecting hole grooves 12, and the connecting hole grooves 12 of the end heads in the embodiment are used for realizing the dismounting of the adjacent keel rails 1.

The keel rail 1 with a certain length can be fixedly produced in production, when the keel rail is used, the adjacent keel rails 1 can be connected into a required length through the connecting hole grooves 12 and the connecting structure, so that the keel rail is more flexible and convenient to install.

Referring to fig. 3, in a further embodiment, the connecting hole 12 is a through hole extending from one end of the rail body 10 to the other end and penetrating through the rail body 10.

It is understood that the connecting hole slot 12 of the rail body 10 may be configured as a through hole extending from one end to the other end and penetrating through the rail body 10.

In some embodiments, in actual use, the track body 10 is provided as a hollow structure, and both ends are provided with openings, i.e. the hollow cavity is a connecting hole slot 12. When two adjacent keel rails 1 need to be connected together, the connection mechanism is arranged at the position, corresponding to the connecting hole groove 12, of the end of the keel rail 1, so that the connection of the two adjacent keel rails 1 can be realized.

Further, the connecting hole grooves 12 are recessed grooves formed at both ends of the rail body 10.

It is understood that the connecting hole grooves 12 of the rail body 10 may be provided in recessed grooves recessed from both ends toward the center.

In some embodiments, in actual use, the two ends of the rail body 10 are respectively recessed toward the middle position, that is, the recessed grooves are the connecting hole grooves 12. When two adjacent keel rails 1 need to be connected together, the connection mechanism is arranged at the position, corresponding to the connecting hole groove 12, of the end of the keel rail 1, so that the connection of the two adjacent keel rails 1 can be realized.

Further, the end of the rail body 10 is provided with a mounting structure (not shown) corresponding to the position of the connecting hole slot 12.

As can be understood, in order to enable two adjacent keel rails 1 to be stably connected, in an embodiment, a mounting structure (not shown) is provided on a head of the rail body 10, and the mounting structure (not shown) corresponds to the position of the connecting hole slot 12, and is used for connecting the keel rails 1 with the connecting structure, so as to ensure stability.

During practical use, when two adjacent keel rails 1 need to be connected together, the ends of the keel rails 1 correspond to the connecting hole grooves 12, and the connection of the two adjacent keel rails 1 can be realized by arranging the connecting mechanisms. And the keel rail 1 is fixedly connected with the connecting structure through a mounting structure (not shown in the figure).

Further, the mounting structure (not shown) may include a threaded connection or a snap-fit connection.

It will be appreciated that the embodiments may be implemented with different mounting arrangements (not shown) according to different requirements, such as a threaded connection or a snap-fit arrangement.

Referring to fig. 3 and 4, in a further embodiment, the track body 10 is provided with a connecting assembly at a side close to the hanging member 11; wherein the content of the first and second substances,

the connecting assembly includes: a hanging member 14 provided on the rail body 10; and a process for the preparation of a coating,

an extension support 15, said extension support 15 being connected to said hitching member 14.

It will be appreciated that embodiments are provided in which a connection assembly is provided on the track body 10, the connection assembly including a hanger 14,

the hanging piece 14 comprises a first vertical portion and a first transverse portion, the first vertical portion is connected with the track body 10, the first transverse portion is arranged at the tail end of the first vertical portion, and the cross section of the first transverse portion can be understood as a T shape. The hanging piece 14 is used for hanging the auxiliary keel, one end of the bottom side of the auxiliary keel is inwards sunken to form a first hook groove, and the bottom surface in the groove extends in the horizontal direction back to back, so that the cross section of the first hook groove is also in a T shape with a large inside and a small outside. During actual connection, the first hook slot position is sleeved with the hanging piece 14 from one end of the keel track 1 in the radial direction, and then slides to a required connection position along the hanging piece 14.

And, the hanging member 14 further includes an extension support member 15, and the extension support member 15 includes a second vertical portion connected to the rail body 10 and a second lateral portion configured to extend outward from a tip of the second vertical portion. The extension support 15 is used to support a ceiling so that the keel rail 1 can be a concealed installation rail.

Referring to fig. 5, the second aspect of the embodiment further discloses a splicing rail, which comprises at least two keel rails 1; and a process for the preparation of a coating,

and the connecting piece 23 is arranged on the connecting hole groove 12 and used for connecting adjacent tracks.

It can be understood that the keel rails 1 can be connected into an extended splicing rail by arranging the connecting member 23 between two adjacent keel rails 1, and splicing can be performed according to specific requirements.

During the in-service use, at first install one on the connecting hole groove 12 on the fossil fragments track 1 connecting piece 23, then taking out the second 1 tip of fossil fragments track 12 connecting hole groove 12 corresponds first on the fossil fragments track 1 connecting piece 23 match the installation and can accomplish the concatenation, if need prolong the concatenation, then at the second another end of fossil fragments track 1 connecting hole groove 12 sets up one connecting piece 23, and then with the third fossil fragments track 1 is installed the second fossil fragments track 1 can, so splice and can accomplish required length. In the embodiment, the keel rails 1 with the same structure are spliced with each other to complete the required length, so that the production requirement and the transportation requirement are reduced, the interchangeability is ensured, and the corresponding keel rails 1 can be replaced even if a certain section is damaged.

Referring to fig. 4, in a further embodiment, the connecting member 23 is detachably connected to the connecting hole groove 12.

It is understood that the connecting member 23 and the connecting hole groove 12 are detachably connected, that is, when the keel rail 1 is not required to be spliced, the connecting member 23 and the connecting hole groove 12 can be separated, and when required, the connecting member 23 can be installed on the connecting hole groove 12.

Referring to fig. 9, 10 and 11, a third aspect of the embodiment further discloses a ceiling keel system, which comprises the splicing track; and a process for the preparation of a coating,

and the rail connecting device is arranged between the adjacent splicing rails.

It can be understood that the splicing tracks and the auxiliary keels in the embodiment are adopted in the suspended ceiling to form the frame body of the complete suspended ceiling, the rollers can move on the splicing tracks, and curtains, hanging needle frames or partitions and the like can be arranged under the rollers.

Referring to fig. 6 and 7, the embodiment discloses a rail connecting device 2, including: a connecting body 20;

a second pulley support 22 provided at one side of the connecting body 20;

the first clamping pieces 21 are arranged at two ends of the connecting body 20;

wherein the connecting body 20 comprises a first track 222; and a process for the preparation of a coating,

and the second tracks 221, the second tracks 221 are arranged at two ends of the first track 222, and an included angle is formed between the first track 222 and the second track 221.

In an embodiment, it can be understood that, the side surface of the lower end of the connecting body 20 is provided with a second pulley support 22 for the movement of the roller, and in particular, the second pulley support 22 is a support plate extending from the connecting body 20 to two sides, and the roller can move on the upper surface of the support plate on two sides. Two ends of connecting body 20 are provided with first joint spare 21 respectively, first joint spare 21 is used for being connected with fossil fragments track 1 dismouting.

In an embodiment, the connecting body 20 is provided with multiple sections, that is, the connecting body 20 includes a first rail 222 and a second rail 221, the second rail 221 is provided at two ends of the first rail 222, and an included angle is provided between the first rail 222 and the second rail 221, it can also be understood that the first rail 222 and the second rail 221 are not in the same straight line, so that the rail connecting device 2 is connected to adjacent keel rails 1 in different directions, and the adjacent keel rails 1 are connected together, so that the roller can move on the adjacent keel rails 1. The problem of keel track 1's transitional coupling is solved.

In practical use, the second pulley supporting member 22 is a supporting plate extending from the connecting body 20 to two sides, and the roller can move on the upper surface of the supporting plate on the two sides. And two ends of the connecting body 20 are respectively provided with a first clamping piece 21, and the first clamping piece 21 is a detachable connecting structural member and comprises a clamping structure or an inserting structure. In the embodiment, the first locking member 21 is two protruding columns extending outward from the connecting body 20, and is detachably connected to the keel rail 1 through the two protruding columns.

In one embodiment, the connecting body 20 is provided in two segments, that is, the connecting body includes a first rail 222 and a second rail 221 connected to one end of the first rail 222, an included angle is formed between the first rail 222 and the second rail 221, and the size of the included angle is set according to actual requirements. In one embodiment, the first rail 222 and the second rail 221 are vertical rails.

In another embodiment, the connecting body 20 is provided in a three-stage manner, that is, the connecting body includes a first rail 222 and a second rail 221 connected to two ends of the first rail 222, an included angle is formed between the first rail 222 and the second rail 221, and the size of the included angle is set according to actual requirements. In one embodiment, the first rail 222 and the second rail 221 are vertical rails.

Referring to fig. 6, in a further embodiment, the first track 222 and the second track 221 are directly in a gradual transition structure 223.

Further, the gradual transition structure 223 is an arc-shaped structure.

As can be understood, by providing the gradual transition structure 223 at the position where the first rail 222 is connected to the second rail 221, it is effective that the roller can smoothly transit between the first rail 222 and the second rail 221, and the smoothness of the roller is ensured.

In practical use, the position where the first rail 222 is connected to the second rail 221 is set to be an arc transition structure, that is, when the roller moves from the first rail 222 to the second rail 221, the roller can smoothly reach the second rail 221 along the arc structure through the arc structure.

Further, the end of the connecting body 20 is provided with a connecting member 23, and the connecting member 23 is a boss protruding from the end of the connecting body 20.

It can be understood that, a connecting piece 23 is provided at the end position of the connecting body 20, and is used for being installed in cooperation with the connecting hole slot 12 on the keel rail 1, which effectively improves the stability of connection. Specifically, the connecting member 23 is a boss extending outward from the end of the connecting body 20, and the boss is inserted into the connecting hole 12 of the keel rail 1 during installation to achieve connection.

Referring to fig. 6, in a further embodiment, the connecting member 23 is detachably or fixedly connected to the connecting body 20.

It can be understood that the connection manner of the connection member 23 disposed on the connection body 20 can be set according to specific situations, for example, in some embodiments, the connection member 23 and the connection body 20 are detachably connected, that is, when the keel rail 1 is not required to be connected, the connection member 23 and the connection body 20 can be separated, and when required, the connection member 23 is mounted on the connection body 20; in other embodiments, the connecting member 23 and the connecting body 20 are configured to be fixedly connected, that is, the connecting member 23 is.

Further, the track connecting device 2 further comprises a second clip member (not shown), and the second clip member (not shown) is detachably connected to the connecting body 20.

It can be understood that, in order to increase the adaptability of the track connecting device 2, the second clip (not shown) is detachably disposed on the connecting body 20, that is, the second clip (not shown) is detachably connected to the connecting body 20 when necessary, but not separated from the connecting body 20 when necessary.

Further, the second clip (not shown) includes: a clamping part;

the inserting part is connected with the clamping part and is used for being detachably connected with the keel track 1.

It can be understood that, in the embodiment, the second clip member (not shown) includes the clip portion, the clip portion is used for clipping with the keel rail 1, and the insertion portion is connected with the clip portion. When the second clip (not shown) needs to be detachably connected with the connecting body 20, the inserting portion is detachably connected with the connecting body 20, that is, the inserting portion is connected with the connecting body 20 in an inserting manner.

In a further embodiment, and with reference to fig. 6 and 7, the rail-connecting device 2 further comprises:

a first reinforcement 25, the first reinforcement 25 being disposed on one side of the rail connecting device 2 and being spaced apart from the rail connecting device 2 and disposed side by side; and a process for the preparation of a coating,

a second reinforcement 24, said second reinforcement 24 being arranged at a side of said rail attachment means 2 remote from said first reinforcement 25 and spaced apart from said rail attachment means 2 in a side-by-side arrangement.

It is understood that a first reinforcing member 25 and a second reinforcing member 24 are respectively disposed at both sides of the connecting body 20, the first reinforcing member 25 and the second reinforcing member 24 are respectively disposed at intervals from the connecting body 20, and are respectively disposed at both sides side by side centering on the connecting body 20, and the first reinforcing member 25 and the second reinforcing member 24 are respectively disposed at the same distance from the connecting body 20.

Referring to fig. 6, in a further embodiment, a side of the first reinforcement member 25 away from the rail connecting device 2 is provided with a first extension;

the side of the second reinforcement 24 facing away from the rail attachment means 2 is provided with a second extension.

It will be appreciated that the track-joining device 2 can be used to support a ceiling panel by providing first and second outwardly extending extensions on the first and second reinforcing members 25 and 24, respectively.

During the in-service use, after track connecting device 2 splices with fossil fragments track 1, can with ceiling complex that the furred ceiling was used place on first extension and second extension, realize the purpose of track connecting device 2 and fossil fragments track 1 cooperation installation ceiling. Especially, when the keel rail is used as a concealed installation rail, the keel rail 1 can be blocked by a ceiling, so that the appearance is more attractive.

Referring to fig. 7, in a further embodiment, the second reinforcing member 24 further includes a connecting portion disposed near a middle of the second reinforcing member 24.

It can be understood that a connecting portion is provided on the second reinforcing member 24, and the connecting portion is provided near the middle of the reinforcing member, and the connecting portion is used for detachably connecting a second clamping member (not shown in the figures), so that the rail connecting device 2 can be connected with the keel rail 1 at two ends, and the rail connecting device 2 can be used as an intersection point, thereby forming a ceiling keel system. In an embodiment, the second clip member (not shown) is movably installed, so that the track connecting device 2 has a wide application range, i.e. can be used as the two-way connecting member 23. Moreover, after the second clamping piece (not shown in the figure) is installed, the second clamping piece can be used as a three-way or four-way connecting piece 23, namely, the keel rails 1 can be connected in multiple directions, the product adaptability is better, and the problem that the conventional rail connecting device 2 is too many in arrangement is solved.

In practical use, in some embodiments, the connecting portion of the rail connecting device 2 is not provided with the second clamping member (not shown), that is, the connecting portion is used as a two-way connecting member 23, specifically, the two ends of the rail connecting device 2 are respectively connected to the keel rail 1; in other embodiments, the second clip (not shown) is mounted on the connecting portion of the rail connecting device 2, and at this time, the keel rail 1 may be connected in multiple directions, so as to form a more complex ceiling system.

Referring to fig. 7, in a further embodiment, the connecting portion includes a first mounting member 261, and the first mounting member 261 is connected to the second reinforcing member 24; and a process for the preparation of a coating,

a second mounting part 262, the second mounting part 262 being connected with the second reinforcing member 24, and the second mounting part 262 being spaced apart from the first mounting part 261 to form a mounting groove. 263

It can be understood that the connecting portion is configured as a mounting groove formed between the first mounting member 261 and the second mounting member 262, and the mounting groove is used for inserting and mounting the second clamping portion.

Referring to fig. 7, in actual use, a notch 26 is formed near the middle position of the second reinforcing member 24, a first mounting part 261 is arranged on the notch 26, a second mounting part 262 is arranged at a position corresponding to the first mounting part 261, the second mounting part 262 is arranged side by side with the first mounting part 261, a space is formed between the second mounting part 262 and the first mounting part 261, and the second mounting part 262 is far away from the position of the second reinforcing member 24. The mounting groove is used for inserting the second clamping portion, so that the second clamping portion is detachably connected with the track connecting device 2.

Referring to fig. 8, in a further embodiment, the track-joining device 2 further includes a decoration 27, and the decoration 27 includes: the decoration part comprises a decoration part and an insertion part, wherein the insertion part is a structure which is protruded outwards from the decoration part. The inserting part is used for being detachably connected with the keel rail 1, and particularly used for being inserted into the installation groove to be detachably connected. When the inserting part is inserted into the mounting groove, the decoration part is used for filling the gap 26 of the second reinforcing part 24, so that the appearance of the second reinforcing part is more attractive.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims (10)

1. A keel rail, comprising:

a track body;

the first pulley supporting piece is arranged on one side surface of the track body;

the suspension piece is arranged on one side surface of the track body, which is far away from the first pulley support piece;

wherein, the end of track body is provided with the connecting hole groove.

2. The keel rail of claim 1, wherein said connection hole slot is a through hole extending from one end of said rail body to the other end and penetrating said rail body.

3. The keel rail of claim 1, wherein the connecting hole slots are recessed slots provided at both ends of the rail body.

4. The keel rail of claim 1, wherein the end of the rail body is provided with a mounting structure corresponding to the location of the connection hole slot.

5. The keel rail of claim 4, wherein the mounting structure comprises a threaded connection or a snap-fit structure.

6. The keel rail of any one of claims 1-5, wherein the rail body is provided with a connection assembly at a side adjacent the hanger;

the connecting assembly comprises a hanging piece and is arranged on the track body; and a process for the preparation of a coating,

an extension support connected with the hanger.

7. A splice rail comprising at least two keel rails according to any one of claims 1-6; and a process for the preparation of a coating,

and the connecting piece is arranged on the connecting hole groove and used for connecting the adjacent rails.

8. Splicing rail according to claim 7, characterized in that the connecting piece is detachably connected to the connecting hole slot.

9. A ceiling grid system comprising the splice rail of claim 7 or 8; and a process for the preparation of a coating,

and the rail connecting device is arranged between the adjacent splicing rails.

10. A ceiling grid system according to claim 9, characterised in that the track connection means comprises: a track body;

the second pulley supporting piece is arranged on one side surface of the track body;

the first clamping pieces are arranged at two ends of the track body;

wherein the rail body comprises a first rail;

and the second rails are arranged at two ends of the first rail.

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