Improved keel structure

Abstract

An improved keel structure includes a main keel extending axially; characterized in that the main keel has an opening clamping portion of the main keel, and a light strip mounting slot for mounting the light strip is provided at the bottom of the opening clamping portion of the main keel; it also includes a lamp holder body and a light-transmitting cover, wherein the lamp holder body is used to clamp and mount a magnetic lamp and is installed together with the magnetic lamp in the opening clamping portion of the main keel, and the light-transmitting cover is used to be combined with the opening portion of the opening clamping portion of the main keel; when the lamp holder body and the light-transmitting cover are installed on the main keel, the lamp holder body is arranged in an intermittent manner in the main keel in the direction of axial extension, and the light-transmitting cover fills the intermittent space between the intermittently arranged lamp holder bodies so as to shield the light strip.

Description

Technical Field

[0001] The invention relates to the technical field related to integrated suspended ceilings, and in particular to an improved keel structure for a suspended ceiling layer. Background Art

[0002] Currently common integrated suspended ceiling layers generally include one or several suspended ceiling layers arranged in a staggered manner, and more than one keel is generally provided within the range of the suspended ceiling layer over a large area, and the keel is not only used to support the suspended ceiling panels of the suspended ceiling layer but also to decorate the entire integrated suspended ceiling.

[0003] For example, a Chinese utility model patent with publication number CN206987159U and name “A keel capable of installing a light strip” discloses a keel capable of installing a light strip, wherein the keel comprises a keel body and gusset plate fixings symmetrically installed on both sides of the keel body for fixing the gusset plates, the keel body is provided with a lamp trough for installing the light strip, the light strip is installed in the lamp trough, and a lampshade is clamped on the lamp trough. The auxiliary keel arranged in this way can not only connect and fix the ceiling panel, but also has the functions of lighting and light decoration.

[0004] Since light strips can usually only be used as general lighting or decorative lighting, sometimes in order to make products or local locations more prominent, people need brighter and more concentrated lighting devices for lighting, such as adding spotlights to local locations. The Chinese utility model patent with publication number CN211502513U and name "A Magnetic Track Light" discloses a magnetic track light, which includes a lamp holder, two conductive strips and a guide rail box. The upper part of the cross section of the lamp holder is a guide rail groove with an upper end opening, and the two side walls of the guide rail groove are respectively provided with conductive strip mounting grooves. The two conductive strips are correspondingly mounted in the above-mentioned two conductive strip mounting grooves. The guide rail box has a box body that can slide with the guide rail groove, and conductive springs that can slide and contact with the conductive strips on the two side walls of the guide rail groove are provided on both sides of the box body for conductivity; a magnetic bottom plate is fixedly provided at the bottom of the guide rail groove, and a magnet that can magnetically cooperate with the above-mentioned magnetic bottom plate is provided in the guide rail box. This magnetic track light has the characteristics of high brightness and concentrated light, but if the magnetic track light is added below an integrated ceiling, the integrated ceiling may be damaged during installation.

[0005] In addition, general ceiling panels include gypsum boards, aluminum gusset boards and plywood. Ceiling panels of different specifications usually have different thicknesses. Different ceiling panels need to be installed and used in conjunction with different keels. Sometimes, in order to achieve a certain three-dimensional decorative effect, multiple ceiling panels need to be mixed and used. At the joints of ceiling panels of different thicknesses, traditional joining methods are difficult to achieve ideal connection effects. Summary of the invention

[0006] Through the above-mentioned prior art, it can be found that the existing lighting fixtures installed at the keel position include at least light strips, magnetic track lights, etc. These lighting fixtures have their own characteristics and have different uses in different situations. However, the prior art is to install these different types of lamps on different keels. Obviously, this separate use method not only cannot be properly integrated into the actual application scenario, but also causes the installation cost to be too high. For this reason, if these different lamps can be integrated on a keel under a feasible situation, it is obviously a relatively large improvement, which can not only save the cost, but also have a different lighting effect.

[0007] To this end, in order to solve the above-mentioned technical problems, the present invention first proposes an improved keel structure of a suspended top layer, including a main keel extending axially; characterized in that the main keel has an opening clamping portion of the main keel, and a lamp strip mounting slot for installing the lamp strip is provided at the bottom of the opening clamping portion of the main keel; it also includes a lamp holder body and a light-transmitting cover, wherein the lamp holder body is used to clamp and install a magnetic lamp and is installed together with the magnetic lamp in the opening clamping portion of the main keel, and the light-transmitting cover is used to be combined with the opening portion of the opening clamping portion of the main keel; when the lamp holder body and the light-transmitting cover are installed on the main keel, the lamp holder body is arranged in an intermittent manner in the main keel in the direction of axial extension, and the light-transmitting cover fills the intermittent space between the intermittently arranged lamp holder bodies so as to block the light strip.

[0008] The lamp holder bodies are arranged in the main keel in an intermittent manner in the direction of axial extension. In fact, in the direction of axial extension, there is a spacing distance between the front and rear different lamp holder bodies. The lamp holder bodies are first positioned in the main keel and then positioned on the auxiliary keel through the main keel. There is an intermittent space between the front and rear different lamp holder bodies, and the light-transmitting cover fills the intermittent space so as to cover the light strip but allow the light of the light strip to pass through. The light-transmitting cover can be snapped, plugged or buckled on the opening part of the main keel opening clamping part. According to the above technical scheme, compared with the prior art, the beneficial technical effects of the present invention are: first, a light strip installation slot for installing the light strip is provided at the bottom of the opening clamping portion of the main keel, which is conducive to the light strip being stably connected and fixed to the main keel; second, the light strip is installed to the slot at the bottom of the main keel, and then the lamp holder body is installed to the main keel opening clamping portion of the main keel, and then the light-transmitting cover is used to fill the intermittent space between the light holder bodies arranged intermittently, so that the light strip and the magnetic lamp can be installed on the main keel together through the cooperation between the main keel and the lamp holder body, which not only has a compact structure and low cost, but also allows the lights of the two light sources to be mixed together to form different lighting effects, and also forms different decorative effects in appearance by alternating the light-transmitting cover and the magnetic lamp.

[0009] Secondly, in order to further improve the flexibility of the use and installation of the main keel, a further technical solution may also be to include an auxiliary keel extending axially, the main keel being inserted into the auxiliary keel, the auxiliary keel having a left clamping edge and a right clamping edge, the main keel being clamped between the left clamping edge and the right clamping edge; a clamping side gap that can be used to clamp the ceiling panel is formed between the left clamping edge and the right clamping edge respectively.

[0010] Among them, since the main keel has a main keel opening clamping portion, that is, the clamping side gap includes a left clamping side gap formed by the left clamping edge and the left side wall of the main keel and a right clamping side gap formed by the right clamping edge and the right side wall of the main keel, which allows the left and right sides of the keel structure to have the function of connecting with the ceiling board. The clamping side gap is a gap for clamping arranged between the left clamping edge and the right clamping edge of the auxiliary keel and the main keel. The gap may have a space spacing at the initial stage, and there may be no space spacing in the middle and rear parts in a natural state, but the left and right sides are close together. However, since the left clamping edge, the right clamping edge and the main keel have a certain elasticity, when the plug-in arm of the ceiling board is plugged into the clamping side gap, it can be inserted into the clamping part of the middle and rear parts along the space spacing at the initial stage and thus be clamped. For this reason, the clamping side gap may actually be a variable gap, and the minimum gap value can be equal to zero. Based on the above functional description, the left clamping edge and the right clamping edge respectively form a clamping side gap with the main keel that can be used to clamp the ceiling board. In fact, it also defines that the left clamping edge and the right clamping edge of the auxiliary keel and at least one of the left and right walls of the main keel have certain elastic properties so that they can be elastically deformed to avoid the insertion of the plug-in arm of the ceiling board. In this way, the main keel can not only be installed on the building with the help of the auxiliary keel, but also the keel structure forms the clamping side gap through the left clamping edge and the right clamping edge of the auxiliary keel and the main keel, which is conducive to the keel structure being able to clamp the plug-in arm of the ceiling board on both sides.

[0011] Secondly, it is difficult to achieve the connection of ceiling panels with different thicknesses on the left and right sides and achieve an adjustable height difference through a single keel structure in the prior art. To solve this problem, a further technical solution may be that the lower edge of the main keel protrudes downward from the lower edge of the auxiliary keel, and there are at least two levels of clamping and positioning structures between the auxiliary keel and the main keel in the vertical direction. When the main keel is inserted into the auxiliary keel with the selected clamping and positioning structures of different heights, at least two different height differences are configured vertically between the lower edge of the main keel and the lower edge of the auxiliary keel. Among them, the lower end edge of the main keel protrudes downward from the lower end edge of the auxiliary keel, which allows the two sides of the main keel to form a space that can connect to a ceiling panel of a certain thickness, and one end of the ceiling panel can be against the two sides of the top end of the main keel, so that the top end of the main keel forms an end positioning for the ceiling panel; in addition, there are at least two levels of clip-on positioning structures in the vertical direction between the auxiliary keel and the main keel. In actual use, the main keel can select a clip-on positioning structure of corresponding height according to the thickness of the selected ceiling panel to be plugged into the auxiliary keel, which greatly improves the adaptability of the keel structure to connect with ceiling panels of different thicknesses.

[0012] When installing the keel structure, in order to realize a clamping and positioning structure with at least two levels of height between the auxiliary keel and the main keel in the vertical direction, at least two levels of adjustable connection structures can be provided on the auxiliary keel. A further technical solution may be that the auxiliary keel includes a left clamping groove portion and a right clamping groove portion which are arranged on the left and right sides, wherein, viewed from the cross-sectional direction, the left clamping groove portion includes the left clamping edge, a left groove arm which is arranged at intervals on the inner side of the upper portion of the left clamping edge and extends vertically, and the top of the left clamping edge and the top of the left groove arm are connected by a left cross arm, thereby forming a left clamping cavity which is open downwards between the upper portion of the left clamping edge, the left groove arm and the left cross arm, and at least two first left clamping arms are arranged in the left clamping cavity, and the two first left clamping arms are arranged at intervals up and down, and the two first left clamping arms extend horizontally, one end of which is connected to the left clamping edge or the left groove arm, and the other end is suspended to form a cantilever shape; the right clamping groove portion includes the right clamping edge, a right groove arm which is arranged at intervals on the inner side of the upper portion of the right clamping edge and extends vertically. A slot arm, the top of the right clamping edge and the top of the right slot arm are connected by a right cross arm, so that a right clamping cavity with an open downward is formed between the upper part of the right clamping edge, the right slot arm and the right cross arm, and at least two first right clamping arms are arranged in the right clamping cavity, and the two first right clamping arms are arranged at intervals up and down, and the two first right clamping arms extend laterally, one end of which is connected to the right clamping edge or the right slot arm, and the other end is suspended to form a cantilever shape; the auxiliary keel forms at least two levels of clamping and positioning structures in the vertical direction through the two first left clamping arms, the two first right clamping arms and the main keel, a spacing space is provided between the left slot arm and the right slot arm, and the left slot arm and the right slot arm are arranged parallel to each other, and the lower end of the left slot arm is connected to the lower end of the right slot arm by a first intermediate connecting arm. Among them, the left clamping cavity and the right clamping cavity are spaces arranged on the left and right sides of the auxiliary keel for connecting with the main keel. By setting two groups of the first left clamping arms and two groups of the first right clamping arms in the left clamping cavity and the right clamping cavity, it is equivalent to forming two groups of connecting clamping arms with a certain height difference on the auxiliary keel. In this way, the auxiliary keel provides a two-level height clamping positioning structure for the main keel in the vertical direction.

[0013] There are various methods to realize a clamping positioning structure with at least two levels of height between the auxiliary keel and the main keel in the vertical direction. A further technical solution can also be to set two groups of connection structures on the main keel. From the cross-sectional direction, the main keel includes a left vertical arm, a right vertical arm and a second intermediate connecting arm connecting the upper arm body of the left vertical arm and the upper arm body of the right vertical arm; the second intermediate connecting arm divides the space between the left vertical arm and the right vertical arm into the upper space of the main keel and the lower space of the main keel, and the lower space of the main keel forms the main keel opening clamping part; the left vertical arm located in the upper space of the main keel is provided with two second left clamping arms that can be inserted into the left clamping cavity and are adapted to clamp the two first left clamping arms, and the two said The second left clamping arm extends laterally and is spaced apart up and down; the two second left clamping arms can be selectively inserted into the upper and lower positions of the two first left clamping arms so as to configure at least two combination heights in the vertical direction; the two second right clamping arms that can be inserted into the right clamping cavity and are adapted to engage with the two first right clamping arms are arranged on the right vertical arm located in the upper space of the main keel, and the two second right clamping arms extend laterally and are spaced apart up and down; the two second right clamping arms can be selectively inserted into the upper and lower positions of the two first right clamping arms so as to configure at least two combination heights in the vertical direction; when the main keel is inserted into the auxiliary keel, the left vertical arm and the right vertical arm of the main keel are respectively clamped between the left clamping edge and the right clamping edge of the auxiliary keel. Among them, the two second left clamping arms and the two second right clamping arms on the main keel form two groups of connecting clamping arm structures with a certain height difference, and a two-level height clamping positioning structure can be formed vertically through the two groups of clamping arm structures on the main keel; further, combined with the two first left clamping arms and the two first right clamping arms on the auxiliary keel, the main keel and the auxiliary keel can form four kinds of plug-in combination methods according to the combination method of two by two. In this way, the main keel and the auxiliary keel can cooperate with a variety of height differences and thus a variety of thicknesses of ceiling panels, which greatly improves the adaptability of the keel structure.

[0014] In order to enable the light strip to be fixed on the main keel, a further technical solution may be that a pair of first small protrusions, i.e., a first left small protrusion and a first right small protrusion corresponding to each other are provided at a position near the second intermediate connecting arm in the lower space of the main keel, the first left small protrusion is connected to the inner side of the left vertical arm, the first right small protrusion is connected to the inner side of the right vertical arm, there is a gap between the first left small protrusion and the first right small protrusion for the light strip to pass through, and the pair of the first small protrusions cooperate with the second intermediate connecting arm to form the light strip installation slot for fixing the light strip. In this way, the installation slot of the light strip is conducive to improving the stability of the light strip being fixed on the bottom of the opening clamping portion of the main keel, and does not affect the emission of light from the light strip, thereby ensuring the light brightness of the light strip.

[0015] The light strip is installed at the bottom of the main keel opening clamping part, and a depression will be formed at the main keel opening clamping part of the main keel, which greatly affects the aesthetics of the keel structure. Therefore, it is necessary to add a shielding component at the mouth of the main keel opening clamping part. A further technical solution can also be that a pair of second small protrusions and a pair of third small protrusions are respectively arranged in the lower space of the main keel, and the pair of the second small protrusions are located between the pair of first small protrusions and the pair of the third small protrusions; the pair of the second small protrusions include a second left small protrusion and a second right small protrusion corresponding to the left and right, the second left small protrusion is connected to the inner side of the left vertical arm, and the second right small protrusion is connected to the inner side of the right vertical arm; the pair of the third small protrusions include a third left small protrusion and a third right small protrusion corresponding to the left and right, the third left small protrusion is connected to the inner side of the left vertical arm, and the third right small protrusion is connected to the inner side of the right vertical arm; the pair of the second small protrusions and the pair of the third small protrusions are arranged up and down. The light-transmitting cover is buckled onto the main keel via a pair of the second small protrusions and a pair of the third small protrusions. The connection method between the light-transmitting cover and the main keel is relatively flexible. One connection method is to set a groove on the connecting arm of the light-transmitting cover, and the groove is combined with a pair of the second small protrusions or a pair of the third small protrusions so that the light-transmitting cover is fixed on the main keel; another connection method is to set a protrusion on the connecting arm of the light-transmitting cover to just fit into the gap between the pair of the second small protrusions and the pair of the third small protrusions so that the light-transmitting cover is fixed on the main keel. In this way, by setting the light-transmitting cover at the mouth of the main keel opening clamping part of the main keel, on the one hand, the light-transmitting cover is combined with the main keel to fill the mouth of the main keel opening clamping part of the main keel, thereby improving the overall aesthetics of the keel structure; on the other hand, the light-transmitting cover can protect the light strip and make the emitted light softer.

[0016] In the past, the installation of the magnetic lamp required the addition of an additional magnetic guide rail, which was very cumbersome. In order to improve the integrity of the keel structure, the lamp holder body can be pre-installed on the main keel, and then the magnetic lamp can be easily adsorbed on the lamp holder body. A further technical solution may be that, viewed from the cross-sectional direction, the lamp holder body includes a left clamp arm, a right clamp arm, and a clamp bottom wall connecting the left clamp arm and the right clamp arm, and an upward protrusion is provided on the clamp bottom wall to form an electrical lead embedded groove on the clamp bottom wall. When the lamp holder body is inserted into the main keel, the two shoulders on the upper part of the lamp holder body rest on a pair of the first left small protrusions and the first right small protrusions, and the lower parts of the left clamp arm and the right clamp arm of the lamp holder body respectively rest on a pair of the third small protrusions, so that the lamp holder body is stuck between the pair of first small protrusions and the pair of third small protrusions. Among them, the two shoulders on the upper part of the lamp holder body refer to the connection parts between the left clamp arm, the right clamp arm and the left and right ends of the clamp bottom wall of the inverted U-shaped lamp holder body; the lamp holder body arranged in this way can not only be stably plugged into the main keel, but more cleverly, the electrical leads are stored at the bottom of the lamp holder body, which greatly improves the installation convenience of the magnetic lamp and the overall aesthetics of the keel structure.

[0017] The keel structure is not only the main component for connecting the ceiling board, but also the component connected to the ceiling mounting beam. For this purpose, the left horizontal arm is provided with a T-shaped left positioning arm, the left clamping edge is vertically extended and arranged, and its lower part is S-shaped. The right horizontal arm is provided with a T-shaped right positioning arm, and the right clamping edge is vertically extended and arranged, and its lower part is S-shaped. The left positioning arm and the right positioning arm are conducive to stably connecting the auxiliary keel to the mounting beam; and the S-shaped structure of the left clamping edge and the right clamping edge not only forms a certain space spacing at the initial stage of the clamping side gap to facilitate the plug-in arm of the ceiling board to be plugged into the clamping side gap, but also allows the left clamping edge and the right clamping edge to have better elasticity to enhance the combination effect with the ceiling board so that the ceiling board can be stably installed on the mounting beam.

[0018] Since the present invention has the above characteristics and advantages, it can be applied to an improved keel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of a cross-sectional structure of the improved keel structure in a front view direction, showing a first configuration mode of the main keel and the auxiliary keel;

[0020] Figure 2 is a schematic diagram of a cross-sectional structure of the improved keel structure in a front view direction, showing a second configuration mode of the main keel and the auxiliary keel;

[0021] Figure 3is a schematic diagram of the cross-sectional structure of the improved keel structure in the front view direction, showing the installation structure of the magnetic lamp;

[0022] Figure 4 is a schematic diagram of the auxiliary keel in a front view;

[0023] Figure 5 is a schematic structural diagram of the main keel in a frontal view;

[0024] Figure 6 It is a schematic diagram of the structure of the lamp frame body in a front view direction. DETAILED DESCRIPTION

[0025] The improved keel structure using the technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0026] like Figure 1 and Figure 2 As shown, the improved keel structure comprises an auxiliary keel 1 extending along the axial direction, and a main keel 2 extending along the axial direction and inserted into the auxiliary keel 1 . The auxiliary keel 1 includes a left clamping edge 11a and a right clamping edge 11b arranged on the left and right, and there is a certain distance between the left clamping edge 11a and the right clamping edge 11b to form a clamping opening of the auxiliary keel 1 in the downward direction; the main keel 2 inserted into the auxiliary keel 1 is arranged between the left clamping edge 11a and the right clamping edge 11b, and the main keel 2 also has a main keel opening clamping portion facing downward, a light strip 3 is installed at the bottom of the main keel opening clamping portion, and a light-transmitting cover 4 and a lamp stand body 5 are arranged below the light strip 3, the lamp stand body 5 is used to clamp and install the magnetic lamp 6 on the one hand, and is installed together with the magnetic lamp 6 in the main keel opening clamping portion, thereby partially blocking the light emitted by the light strip 3; the light-transmitting cover 4 is combined with the opening portion of the main keel opening clamping portion to block the light strip 3 but allow the light emitted by the light strip 3 to at least partially pass through. In this way, the light strip 3 and the magnetic lamp 6 can be installed together on the keel structure. The keel structure is not only compact and low in cost, but also allows the lights of the two light sources to be mixed together to form different lighting effects.

[0027] In order to allow the main keel 2 to be stably plugged into the auxiliary keel 1, a connecting arm structure is provided on both the auxiliary keel 1 and the main keel 2. Figure 4As shown, the auxiliary keel 1 also includes a left card slot portion 1a and a right card slot portion 1b which are arranged on the left and right sides, the left card slot portion 1a includes the left clamping edge 11a, and a left slot arm 12a which is arranged at intervals on the inner side of the upper part of the left clamping edge 11a and extends vertically, the top of the left clamping edge 11a and the top of the left slot arm 12a are connected by a left cross arm 13a, so that a left card cavity 10a with an open opening facing downward is formed between the upper part of the left clamping edge 11a, the left slot arm 12a and the left cross arm 13a; a first upper left card arm 14a and a first lower left card arm 15a are arranged in the left card cavity 10a, the first upper left card arm 14a and the first lower left card arm 15a are arranged at intervals up and down, and the first upper left card arm 14a and the first lower left card arm 15a extend horizontally, one end of which is connected to the left slot arm 12a, and the other end is suspended in the air to form a cantilever shape. The right clamping groove portion 1b includes a right clamping edge 11b, a right groove arm 12b which is arranged at intervals on the inner side of the upper part of the right clamping edge 11b and extends vertically, the top of the right clamping edge 11b and the top of the right groove arm 12b are connected by a right cross arm 13b, so that a right clamping cavity 10b with an open opening facing downward is formed between the upper part of the right clamping edge 11b, the right groove arm 12b and the right cross arm 13b, and a first upper right clamping arm 14b and a first lower right clamping arm 15b are arranged in the right clamping cavity 10b, the first upper right clamping arm 14b and the first lower right clamping arm 15b are arranged at intervals up and down, the first upper right clamping arm 14b and the first lower right clamping arm 15b extend horizontally, one end of which is connected to the right groove arm 12b, and the other end is suspended in the air to form a cantilever shape. A spacing space is provided between the left groove arm 12a and the right groove arm 12b, and the left groove arm 12a and the right groove arm 12b are arranged parallel to each other. The lower end of the left groove arm 12a and the lower end of the right groove arm 12b are connected by a first intermediate connecting arm 16, so that the auxiliary keel 1 forms a connection structure with good strength.

[0028] like Figure 5As shown, the main keel 2 includes a left vertical arm 21a, a right vertical arm 21b, and a second intermediate connecting arm 22 connecting the upper arm body of the left vertical arm 21a and the upper arm body of the right vertical arm 21b; the second intermediate connecting arm 22 divides the space between the left vertical arm 21a and the right vertical arm 21b into the upper space of the main keel 2 and the lower space of the main keel 2. The left vertical arm 21a located in the upper space of the main keel 2 can be inserted into the left clamping cavity 10a through the gap between the suspended end of the first upper left clamping arm 14a and the first lower left clamping arm 15a and the left clamping edge 11a, and the left vertical arm 21a is provided with a second upper left clamping arm 23a and a second lower left clamping arm 24a that can be inserted into the left clamping cavity 10a, and the second upper left clamping arm 23a or the second lower left clamping arm 24a can be clamped with the first upper left clamping arm 14a or the first lower left clamping arm 15a. The right vertical arm 21b located in the upper space of the main keel 2 can be inserted into the right clamping cavity 10b through the gap between the suspended ends of the first upper right clamping arm 14b and the first lower right clamping arm 15b and the right clamping edge 11b, and the right vertical arm 21b is provided with a second upper right clamping arm 23b and a second lower right clamping arm 24b that can be inserted into the right clamping cavity 10b, and the second upper right clamping arm 23b or the second lower right clamping arm 24b can be clamped with the first upper right clamping arm 14b or the first lower right clamping arm 15b. In this way, the main keel 2 can be stably clamped together with the auxiliary keel 1 in the vertical direction.

[0029] Secondly, it is difficult to realize the connection of ceiling panels with different thicknesses on the left and right sides through a single keel structure in the prior art. In order to solve this problem, a further technical solution may be that the lower edge of the main keel 2 protrudes downward from the lower edge of the auxiliary keel 1, and at least two levels of clamping and positioning structures can be formed between the auxiliary keel 1 and the main keel 2 in the vertical direction. When the main keel 2 is inserted into the auxiliary keel 1 with different selected clamping and positioning structures, at least two different height differences are configured vertically between the lower edge of the main keel 2 and the lower edge of the auxiliary keel 1. By selecting different height differences, it is possible to adapt to ceiling panels of different thicknesses. The following insertion configurations are used for explanation:

[0030] The first configuration method, such as Figure 1As shown, when the main keel 2 is inserted into the auxiliary keel 1, the second lower left arm 24a is inserted between the first upper left arm 14a and the first lower left arm 15a, and the second lower right arm 24b is inserted between the first upper right arm 14b and the first lower right arm 15b. The main keel 2 is supported by the first lower left arm 15a and the first lower right arm 15b of the auxiliary keel 1. In this configuration, the main keel 2 is arranged at a position close to the bottom of the auxiliary keel 1, and the height difference between the lower end edge of the main keel 2 and the lower end edge of the auxiliary keel 1 is small, so it is suitable for thinner ceiling panels.

[0031] The second configuration method, such as Figure 2 As shown, when the main keel 2 is inserted into the auxiliary keel 1, the second upper left clamp arm 23a is inserted between the first upper left clamp arm 14a and the first lower left clamp arm 15a, and the second upper right clamp arm 23b is inserted between the first upper right clamp arm 14b and the first lower right clamp arm 15b. The main keel 2 is supported by the first lower left clamp arm 15a and the first lower right clamp arm 15b of the auxiliary keel 1. In this configuration, the main keel 2 is arranged at a position away from the bottom of the auxiliary keel 1, and the height difference between the lower end edge of the main keel 2 and the lower end edge of the auxiliary keel 1 is large, so as to adapt to thicker ceiling panels.

[0032] There is also a third configuration mode. When the main keel 2 is inserted into the auxiliary keel 1, the second upper left clamp arm 23a is inserted between the first upper left clamp arm 14a and the left cross arm 13a, and the second upper right clamp arm 23b is inserted between the first upper right clamp arm 14b and the right cross arm 13b. The main keel 2 is supported by the first upper left clamp arm 14a and the first upper right clamp arm 14b of the auxiliary keel 1. In this way, a third height difference is vertically configured between the lower end edge of the main keel 2 and the lower end edge of the auxiliary keel 1, which is between the height differences of the first two configurations, so that it can adapt to some special specifications of ceiling panels.

[0033] In order to enable the light strip 3 to be fixed on the main keel 2, a further technical solution may be as follows: Figure 1 and Figure 5As shown, a mounting slot 20 for mounting the light strip 3 is provided at the bottom of the opening clamping portion of the main keel, and a pair of first small protrusions, namely a first left small protrusion 25a and a first right small protrusion 25b corresponding to each other are provided at a position close to the second middle connecting arm 22 in the lower space of the main keel 2. The first left small protrusion 25a is connected to the inner side of the left vertical arm 21a, and the first right small protrusion 25b is connected to the inner side of the right vertical arm 21b. There is a gap between the first left small protrusion 25a and the first right small protrusion 25b for allowing the light strip 3 to pass through. The first left small protrusion 25a, the first right small protrusion 25b, the left vertical arm 21a, the right vertical arm 21b and the second middle connecting arm 22 cooperate to form the mounting slot 20 of the light strip 3 for fixing the light strip 3. In this way, the installation slot 20 of the light strip 3 is conducive to fixing the light strip 3 at the bottom of the main keel opening clamping part, and does not affect the light of the light strip 3 from being emitted from the gap between the first left small protrusion 25a and the first right small protrusion 25b.

[0034] In order to protect the light strip 3 and improve the aesthetics of the keel structure, the light-transmitting cover 4 is also provided at the opening of the main keel opening clamping portion. In order to fix the light-transmitting cover 4, a pair of second small protrusions and a pair of third small protrusions are respectively provided in the lower space of the main keel 2, and the pair of the second small protrusions are located between the pair of first small protrusions and the pair of the third small protrusions; the pair of the second small protrusions include a second left small protrusion 26a and a second right small protrusion 26b corresponding to the left and right, the second left small protrusion 26a is connected to the inner side of the left vertical arm 21a, and the second right small protrusion 26b is connected to the inner side of the right vertical arm 21b; the pair of the third small protrusions include a third left small protrusion 27a and a third right small protrusion 27b corresponding to the left and right, the third left small protrusion 27a is connected to the inner side of the left vertical arm 21a, and the third right small protrusion 27b is connected to the inner side of the right vertical arm 21b; the pair of the second small protrusions and the pair of the third small protrusions are arranged up and down and form a certain distance. The light-transmitting cover 4 includes a light-transmitting cover cover plate 41 and a left light-transmitting cover side plate 42a and a right light-transmitting cover side plate 42b arranged on the left and right sides of the light-transmitting cover cover plate 41. The U-shaped light-transmitting cover 4 is arranged in the clamping mouth of the main keel with its opening facing upward. The upper ends of the left light-transmitting cover side plate 42a and the right light-transmitting cover side plate 42b are provided with a pair of grooves, which are a left groove 421a and a right groove 421b respectively. When the light-transmitting cover 4 is connected to the main keel 2, the left groove 421a and the right groove 421b are respectively clamped onto the second left small protrusion 26a and the second right small protrusion 26b, and the lower end sides of the left light-transmitting cover side plate 42a and the right light-transmitting cover side plate 42b are tightly attached to the inner sides of the third left small protrusion 27a and the third right small protrusion 27b, and the lower surface of the light-transmitting cover cover plate 41 is flush with the lower end of the main keel 2. The light-transmitting cover 4 arranged in this way is not only stably fastened but also has a smooth and beautiful appearance.

[0035] In order to improve the applicability of the keel structure to different environments, Figure 3 and Figure 6As shown, a lamp holder body 5 is also installed in the keel structure, and the lamp holder body 5 is used to install the magnetic lamp 6. The lamp holder body 5 is U-shaped and includes a left clamp arm 51a, a right clamp arm 51b, and a clamp bottom wall 52 connecting the left clamp arm 51a and the right clamp arm 51b. The connection between the clamp bottom wall 52 and the left clamp arm 51a and the right clamp arm 51b forms two shoulders of the lamp holder body 5. An upward protrusion is provided on the clamp bottom wall 52 to form an electrical lead embedded groove 521 on the clamp bottom wall 52. When the lamp holder body 5 is inserted into the main keel 2, the two shoulders on the upper part of the lamp holder body 5 rest on a pair of the first left small protrusions 25a and the first right small protrusions 25b, and the lower parts of the left clamp arm 51a and the right clamp arm 51b of the lamp holder body 5 rest on the third left small protrusions 27a and the third right small protrusions 27b respectively, so that the lamp holder body 5 is stuck between the pair of first small protrusions and the pair of third small protrusions; and the magnetic lamp 6 is magnetically adsorbed in the clamping mouth of the lamp holder body 5, and the bottom surface of the magnetic lamp 6 is flush with the lower end part of the main keel 2. The position of the lamp holder body 5 installed in this way is flexible, and the electric lead is stored at the bottom of the lamp holder body 5. The connecting wire of the electric lead can pass through the through holes on the main keel 2 and the auxiliary keel 1 from bottom to top to connect with the external power supply line, which greatly improves the installation convenience of the magnetic lamp 6 and makes the overall keel structure more beautiful.

[0036] When the light-transmitting cover 4, the lamp holder body 5, and the magnetic lamp 6 are installed in the main keel 2, the lamp holder body 5 is installed in the main keel 2 in an intermittent manner along the axial extension direction, the light-transmitting cover 4 is installed on the lamp holder body 5 to fill the intermittent space between the intermittently arranged lamp holder bodies 5, and the magnetic lamp 6 is installed on the lamp holder body 5. The position of the lamp holder body 5 arranged in this way is flexible and diverse, and different decorative effects of the alternating installation of the light-transmitting cover 4 and the magnetic lamp 6 are formed in appearance. The position and number of the magnetic lamp 6 can also be appropriately adjusted according to the brightness of the environment to achieve the purpose of locally enhancing the lighting, greatly improving the convenience of using the keel structure. Moreover, the light-transmitting cover 4 can also clamp the lamp holder body 5 in the front and rear directions to limit the position of the lamp holder body 5 in the axial direction.

[0037] In order to install the keel structure, a T-shaped left positioning arm 17a is provided on the left horizontal arm 13a, and a T-shaped right positioning arm 17b is provided on the right horizontal arm 13b. The left positioning arm 17a and the right positioning arm 17b are used to stably connect the auxiliary keel 1 to the mounting beam. In order to connect the auxiliary keel 1 to the ceiling panel, the left clamping edge 11a is arranged to extend vertically and its lower portion is S-shaped, and the right clamping edge 11b is arranged to extend vertically and its lower portion is S-shaped. When the main keel 2 is inserted into the auxiliary keel 1, the main keel 2 is clamped between the left clamping edge 11a and the right clamping edge 11b of the auxiliary keel 1. In this way, a left clamping side gap for clamping is formed between the left vertical arm 21a of the main keel 2 and the left clamping edge 11a, and the right vertical arm 21a of the main keel 2 is arranged to extend vertically and its lower portion is S-shaped. 1b and the right clamping side gap for clamping is formed between the left clamping side 11a and the right clamping side 11b, and the S-shaped structure of the left clamping side 11a and the right clamping side 11b allows a certain space spacing to be formed in the initial stage of the left clamping side gap and the right clamping side gap to facilitate the insertion of the plug-in arm of the ceiling panel into the middle and rear parts of the left clamping side gap and the right clamping side gap along the space spacing; the middle and rear parts of the left clamping side gap and the right clamping side gap may have a zero gap in a natural state, but are squeezed out of the gap by the plug-in arm of the ceiling panel through elastic deformation. At the same time, since the left clamping edge 11a, the right clamping edge 11b, the left vertical arm 21a and the right vertical arm 21b are cantilevered and thus have a certain elastic deformation ability, the elastic clamping force of the left clamping edge 11a, the right clamping edge 11b, the left vertical arm 21a and the right vertical arm 21b can clamp the plug-in arm of the ceiling panel so that the ceiling panel can be stably connected to the auxiliary keel 1.

Claims

1. An improved keel structure, comprising a main keel extending axially; characterized in that: The main keel has a main keel opening clamping portion, and a light strip installation slot for installing a light strip is arranged at the bottom of the main keel opening clamping portion; it also includes a lamp holder body and a light-transmitting cover, wherein the lamp holder body is used to clamp and install a magnetic lamp and is installed in the main keel opening clamping portion together with the magnetic lamp, and the light-transmitting cover is used to be combined with the opening of the main keel opening clamping portion; When the lamp frame body and the light-transmitting cover are mounted on the main keel, the lamp frame body is arranged in the main keel in an intermittent manner in the axial extension direction, and the light-transmitting cover fills the intermittent space between the intermittently arranged lamp frame bodies so as to shield the light strip.

2. The improved keel structure according to claim 1, characterized in that: It also includes an auxiliary keel extending axially, the main keel is inserted into the auxiliary keel, the auxiliary keel has a left clamping edge and a right clamping edge, the main keel is clamped between the left clamping edge and the right clamping edge; a clamping side gap that can be used to clamp the ceiling panel is formed between the left clamping edge and the right clamping edge and the main keel respectively.

3. The improved keel structure according to claim 2, characterized in that: The lower end edge of the main keel protrudes downward from the lower end edge of the auxiliary keel, and there are at least two levels of clip-on positioning structures between the auxiliary keel and the main keel in the vertical direction. When the main keel is inserted into the auxiliary keel with the selected clip-on positioning structures of different heights, at least two different height differences are configured vertically between the lower end edge of the main keel and the lower end edge of the auxiliary keel.

4. The improved keel structure according to claim 3, characterized in that: The auxiliary keel includes a left clamping groove portion and a right clamping groove portion which are arranged separately on the left and right sides, wherein, viewed from the cross-sectional direction, the left clamping groove portion includes the left clamping edge, a left groove arm which is arranged at intervals on the inner side of the upper portion of the left clamping edge and extends vertically, and the top of the left clamping edge and the top of the left groove arm are connected by a left cross arm, thereby forming a left clamping cavity which is open downwards between the upper portion of the left clamping edge, the left groove arm and the left cross arm, and at least two first left clamping arms are arranged in the left clamping cavity, and the two first left clamping arms are arranged at intervals up and down, and the two first left clamping arms extend horizontally, one end of which is connected to the left clamping edge or the left groove arm, and the other end is suspended to form a cantilever shape; the right clamping groove portion includes the right clamping edge, a right groove arm which is arranged at intervals on the inner side of the upper portion of the right clamping edge and extends vertically, and the right clamping The top of the holding edge and the top of the right slot arm are connected by the right cross arm, so that a right clamping cavity with an open mouth facing downward is formed between the upper part of the right clamping edge, the right slot arm and the right cross arm. At least two first right clamping arms are arranged in the right clamping cavity, and the two first right clamping arms are arranged at intervals up and down. The two first right clamping arms extend laterally, and one end of each end is connected to the right clamping edge or the right slot arm, and the other end is suspended to form a cantilever shape; the auxiliary keel forms at least two levels of clamping and positioning structures in the vertical direction through the two first left clamping arms, the two first right clamping arms and the main keel, a spacing space is provided between the left slot arm and the right slot arm, and the left slot arm and the right slot arm are arranged parallel to each other, and the lower end of the left slot arm and the lower end of the right slot arm are connected by the first intermediate connecting arm.

5. The improved keel structure according to claim 4, characterized in that: From the cross-sectional view, the main keel includes a left vertical arm, a right vertical arm, and a second intermediate connecting arm connecting the upper arm body of the left vertical arm and the upper arm body of the right vertical arm; the second intermediate connecting arm divides the space between the left vertical arm and the right vertical arm into the upper space of the main keel and the lower space of the main keel, and the lower space of the main keel forms the main keel opening clamping portion; The left vertical arm located in the upper space of the main keel is provided with two second left clamping arms which can be inserted into the left clamping cavity and are adapted to clamp the two first left clamping arms. The two second left clamping arms extend in the transverse direction and are arranged at intervals up and down. The two second left clamping arms can be selectively inserted into the upper and lower positions of the two first left clamping arms so as to configure at least two combination heights in the vertical direction. The right vertical arm located in the upper space of the main keel is provided with two second right clamping arms which can be inserted into the right clamping cavity and are adapted to clamp the two first right clamping arms. The two second right clamping arms extend in the transverse direction and are arranged at intervals up and down. The two second right clamping arms can be selectively inserted into the upper and lower positions of the two first right clamping arms so as to configure at least two combination heights in the vertical direction. When the main keel is inserted into the auxiliary keel, the left vertical arm and the right vertical arm of the main keel are clamped between the left clamping edge and the right clamping edge of the auxiliary keel respectively.

6. The improved keel structure according to claim 5, characterized in that: A pair of first small protrusions, namely a first left small protrusion and a first right small protrusion corresponding to each other, are arranged in the space below the main keel and near the second middle connecting arm. The first left small protrusion is connected to the inner side of the left vertical arm, and the first right small protrusion is connected to the inner side of the right vertical arm. There is a gap between the first left small protrusion and the first right small protrusion for allowing a light strip to pass through. The pair of first small protrusions cooperate with the second middle connecting arm to form the light strip mounting slot for fixing the light strip.

7. The improved keel structure according to claim 6, characterized in that: A pair of second small protrusions and a pair of third small protrusions are also respectively arranged in the lower space of the main keel, and the pair of second small protrusions are located between the pair of first small protrusions and the pair of third small protrusions; the pair of second small protrusions include a second left small protrusion and a second right small protrusion corresponding to each other on the left and right, the second left small protrusion is connected to the inner side of the left vertical arm, and the second right small protrusion is connected to the inner side of the right vertical arm; the pair of third small protrusions include a third left small protrusion and a third right small protrusion corresponding to each other on the left and right, the third left small protrusion is connected to the inner side of the left vertical arm, and the third right small protrusion is connected to the inner side of the right vertical arm; the pair of second small protrusions and the pair of third small protrusions are arranged up and down to form a light-transmitting cover positioning spacing capable of positioning the light-transmitting cover, and the light-transmitting cover is buckled onto the main keel through the pair of second small protrusions and the pair of third small protrusions.

8. The improved keel structure according to claim 7, characterized in that: Seen from the cross-sectional direction, the lamp holder body comprises a left clamp arm, a right clamp arm and a clamp bottom wall connecting the left clamp arm and the right clamp arm, the clamp bottom wall is provided with an upward protrusion to form a pre-buried groove for electrical leads on the clamp bottom wall, and when the lamp holder body is inserted into the main keel, the two shoulders on the upper part of the lamp holder body rest on a pair of the first left small protrusions and the first right small protrusions, and the lower parts of the left clamp arm and the right clamp arm of the lamp holder body rest on a pair of the third small protrusions respectively, so that the lamp holder body is stuck between the pair of first small protrusions and the pair of third small protrusions.

9. The improved keel structure according to claim 4, characterized in that: The left horizontal arm is provided with a T-shaped left positioning arm, the left clamping edge is vertically extended and its lower portion is S-shaped, and the right horizontal arm is provided with a T-shaped right positioning arm, the right clamping edge is vertically extended and its lower portion is S-shaped.

Images