Segmented curtain track

Abstract

The present invention relates to the technical field of curtains, and in particular to a segmented curtain track, comprising track units and assembly structures. Each track unit comprises a side rail, a transmission rack, a side connection positioning mechanism, and a side connection locking mechanism. Each assembly structure comprises a butt locking mechanism for locking two adjacent side rails and a butt positioning mechanism. Each butt locking mechanism comprises an insert piece, an elastic snap, a slot, and a snap-fitting slot. In the present invention, each side connection locking mechanism is used to lock a transmission rack and a side rail corresponding thereto in length, to form a track unit. Then, while an insert piece is inserted into a corresponding slot, a corresponding elastic snap is snap-fit to a corresponding snap-fitting slot to lock two adjacent side rails. Meanwhile, transmission racks in two adjacent side rails are assembled by means of insertion positioning by a corresponding butt positioning mechanism, so as to form the segmented curtain track. In the present invention, a curtain track of any length is formed by assembling track units of different lengths, without processes such as measurement and cutting, and transportation costs are reduced.

Description

A segmented curtain track Technical Field

[0001] This invention relates to the field of curtain technology, and more particularly to a segmented curtain track. Background Technology

[0002] In existing technologies, curtain tracks are typically installed by measuring the dimensions on-site and then cutting them to a length longer than the measured dimensions. This often results in measurement errors that require recutting, which not only wastes materials but also requires back-and-forth movement between the installation site and the warehouse, wasting a lot of time and increasing labor costs. In addition, the cut curtain track is a one-piece long strip structure, leading to higher transportation costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: In order to solve the problem that the existing curtain tracks need to be cut to the required size, measurement errors often occur, which leads to the need for re-cutting. This not only causes material waste but also requires back-and-forth between the installation site and the warehouse, wasting a lot of time and increasing labor costs. At the same time, the cut curtain tracks are a one-piece long strip structure, resulting in high transportation costs. The present invention provides a segmented curtain track.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a segmented curtain track, comprising:

[0005] The track unit comprises several units, each including a side rail, a transmission rack installed inside the side rail, a side positioning mechanism located between the transmission rack and the side rail to position the two, and a side locking mechanism for locking the two. The side rail includes two half rails, which together form a mounting cavity for mounting the transmission rack.

[0006] The assembly structure is located between two adjacent track units and includes a docking locking mechanism for locking two adjacent side rails and a docking positioning mechanism for inserting and positioning two adjacent transmission racks. The docking locking mechanism includes a protruding insert at one end of the side rail, an elastic latch elastically disposed on the insert, a slot at the other end of the side rail for inserting the insert, and a latching groove recessed in the slot for latching to engage.

[0007] Furthermore, the side-mounted locking mechanism has multiple components distributed at intervals along the length of the track unit, and each side-mounted locking mechanism includes an elastic locking hook located on the transmission rack and the side rail, respectively, and a locking groove into which the elastic locking hook engages.

[0008] Furthermore, the side-mounted positioning mechanism includes positioning bosses located at both ends of the transmission rack and both ends of the side rail, and positioning grooves into which the positioning bosses engage.

[0009] Furthermore, the side-mounted positioning mechanism also includes:

[0010] The first locking bar extends from both sides of the transmission rack along its width direction;

[0011] The first card slot is located on the half rail and its opening faces the first card strip for insertion;

[0012] The second locking bar extends from the half rail toward the drive rack;

[0013] The second slot is located on the drive rack and its opening faces the second rack for insertion.

[0014] Furthermore, the track unit also includes a sliding contact line extending along its length and engaged within the transmission rack;

[0015] The splicing structure also includes stationary contacts located at both ends of the sliding contact line and a movable contact that is elastically set and used for conductive contact with the stationary contacts.

[0016] Furthermore, both ends of the curtain track are adjustable and equipped with end caps.

[0017] Furthermore, the docking positioning mechanism includes a positioning protrusion protruding from one end face of the transmission rack and a groove recessed into the other end face of the transmission rack for the positioning protrusion to be inserted.

[0018] Furthermore, the docking locking mechanism also includes a separation hole located on the side where the slot is located and communicating with the slot to push out the latch that is engaged in the buckle slot.

[0019] Furthermore, the transmission rack is provided with a plurality of spaced protrusions along its length, and the protrusions and the transmission rack form the aforementioned second groove.

[0020] Furthermore, both the half-rail and the transmission rack are injection molded, and both the half-rail and the transmission rack have different cross-sectional shapes along their respective length directions.

[0021] The beneficial effects of this invention are as follows: This invention uses a side-locking mechanism to lock the transmission rack and the side rail corresponding to its length to form a track unit. Then, while the insert is inserted into the slot, the elastic buckle engages with the snap-fit ​​groove to lock the two adjacent side rails. At the same time, the transmission racks in the two adjacent side rails are assembled by the docking and positioning mechanism, thereby forming a segmented curtain track. This invention can form a curtain track of any length by assembling track units of different lengths, without the need for measurement, cutting and other processes, and reduces transportation costs. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 is an overall diagram of the present invention;

[0024] Figure 2 is a schematic diagram of the half-rail structure;

[0025] Figure 3 is a structural schematic diagram of the transmission rack from a first-view perspective;

[0026] Figure 4 is a magnified view of part P in Figure 3;

[0027] Figure 5 is a structural schematic diagram of the transmission rack from a second perspective;

[0028] Figure 6 is a magnified view of part Q in Figure 5;

[0029] Figure 7 is a schematic diagram of the structure at one end of the track unit;

[0030] Figure 8 is a schematic diagram of the structure at the other end of the track unit;

[0031] Figure 9 is a partial cross-sectional view of the track unit;

[0032] Figure 10 is a schematic diagram of the docking locking mechanism;

[0033] Figure 11 is a breakdown diagram of a manual curtain track;

[0034] Figure 12 is a breakdown diagram of an electric (or intelligent) curtain track;

[0035] Figure 13 is a structural diagram of the transmission rack and sliding contact line assembly;

[0036] Figure 14 is a split view of the transmission rack and sliding contact line;

[0037] Figure 15 is a side view of the assembled transmission rack and sliding contact line;

[0038] Figure 16 is a schematic diagram of the track unit docking;

[0039] Figure 17 is a schematic diagram of track units of different lengths and dimensions;

[0040] Figure 18 is a front view of the curtain track and end cap assembly;

[0041] Figure 19 is a three-dimensional schematic diagram of the curtain track and end cap assembly;

[0042] Figure 20 shows the cross-sectional shape along the length of the leading edge of the track unit assembly;

[0043] Figure 21 shows the cross-sectional shape of the track unit along its length after assembly;

[0044] Figure 22 is a schematic diagram of the cooperation between the traction trolley and the track unit;

[0045] Figure 23 is a diagram of the internal structure of the traction trolley;

[0046] In the diagram: 100, Track unit; 1, Side rail; 1a, Half rail; 101, Insert piece; 102, Lock; 102a, Fixed end; 102b, Suspension end; 103, Slot; 104, Locking groove; 105, Positioning groove; 106, First slot; 107, Second locking strip; 108, Separation hole; 109, Positioning pin; 110, Positioning hole; 111, Upper plate; 112, Lower plate; 113, Side plate; 114, Upper limit strip; 115, Lower limit strip; 116, Reinforcing rib; 117, Fastening groove; 2. Transmission rack; 201. Locking hook; 202. Positioning boss; 203. First locking bar; 204. Second locking groove; 205. Positioning protrusion; 206. Groove; 207. Protrusion; 208. Tooth; 209. Pressure post; 210. Limiting groove; 211. Positioning bar; 212. Rib; 3. Sliding contact line; 301. Column; 302. Flange; 303. Notch; 4. Stationary contact; 5. Moving contact; 6. End cap; 601. Screw; 7. Track mounting bracket; 8. Fabric hanging wheel; 9. Traction trolley; 901. Fabric hanging arm; Detailed Implementation

[0047] The invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention in a schematic manner. Therefore, they only show the components relevant to the invention, and the orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be limiting, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0048] As shown in Figure 1, a segmented curtain track includes several track units 100 and a splicing structure located between two adjacent track units 100 to assemble them. As shown in Figure 18, the length of each track unit 100 can be equal or unequal, that is, each track unit 100 can be of any length (such as 100cm, 50cm, 30cm, 20cm, 10cm or 5cm, etc.). Thus, curtain tracks of any length can be formed by splicing the structure to meet user needs. The curtain track is provided with track mounting brackets 7 for fixing it, which can realize top mounting or side mounting, and multiple hanging rollers 8 for hanging curtains can be movably installed on it.

[0049] As shown in Figure 11, each track unit 100 includes a side rail 1, a transmission rack 2 installed inside the side rail 1, a side positioning mechanism located between the transmission rack 2 and the side rail 1 to position the two, and a side locking mechanism for locking the two.

[0050] The transmission rack 2 has multiple teeth 208 along its length. The side rail 1 includes two opposing half rails 1a. The two half rails 1a have the same structure and are roughly "U" shaped. The two half rails enclose a mounting cavity for the transmission rack 2 to be installed.

[0051] The splicing structure includes a docking locking mechanism for locking two adjacent side rails 1 and a docking positioning mechanism for inserting and positioning two adjacent transmission racks 2.

[0052] As shown in Figures 2 and 7-10, the docking locking mechanism includes a protruding insert 101 at one end of the side rail 1, an elastic latch 102 elastically disposed on the insert 101, a slot 103 located at the other end of the side rail 1 for inserting the insert 101, and a latching groove 117 recessed in the slot 103 for latching the latch 102. Each half rail 1a includes an upper plate 111, a lower plate 112, and a side plate 113 for connecting the two to form the above-mentioned "U"-shaped structure. The upper plate 111 protrudes towards the lower plate 112 to form an upper limit strip 114, and the lower plate 112 protrudes towards the upper plate 111 to form a lower limit strip 115. The upper limit bar 114, the lower limit bar 115, and part of the side plate 113 enclose and form the above-mentioned slot 103. The upper limit bar 114 and the lower limit bar 115 form the groove wall of the slot 103, and the part of the side plate 113 forms the groove bottom of the slot 103. The depth of the slot 103 matches the length of the insert 101. The groove width of the slot 103 is slightly larger than the thickness of the insert 101 to facilitate the insertion of the insert 101. The insertion end of the insert 101 is provided with a slope to guide its insertion into the slot 103. The groove bottom of the slot 103 is recessed to form the above-mentioned latching groove 117. When the insert 101 is inserted into the slot 103, the latch 102 engages with the latching groove 117 to latch and lock the two adjacent half rails 1a.

[0053] One end of the latch 102 is fixed to the insert 101 as a fixed end 102a, and the other end is a suspended end 102b. The suspended end 102b protrudes towards the bottom of the slot 103 to achieve a snap-fit. The thickness of the suspended end 102b is greater than the thickness of the fixed end 102a to give it sufficient rigidity. In order to improve the locking effect, the suspended end 102b can be slightly bent towards the bottom of the slot.

[0054] During assembly, the transmission rack 2 and the side rail 1 corresponding to its length are first locked using the side locking mechanism to form a track unit 100. Then, multiple track units 100 are spliced ​​together in sequence to form a curtain track of a predetermined length, as shown in Figure 16. During the splicing process, the insert 101 on one of the two adjacent half rails 1a is inserted into the slot 103 in the other half rail 1a. The latch 102 on the insert 101 engages with the snap-fit ​​groove 117 to lock the two adjacent half rails 1a. At the same time, the transmission rack 2 in the two adjacent side rails 1 is inserted and positioned by the docking positioning mechanism to complete the assembly. The transmission rack 2 and the side rail 1 form a normal manual curtain track. The transmission rack 2, the side rail 1 and the sliding contact line 3 can form an electric curtain track or a smart curtain track.

[0055] In some examples, as shown in Figures 3 and 4, the side-mounted locking mechanism has multiple parts distributed at intervals along the length of the track unit 100. Each side-mounted locking mechanism includes an elastic locking hook 201 located on the transmission rack 2 and the side rail 1, respectively, and a locking groove 104 into which the elastic locking hook 201 engages. The multiple elastic locking hooks 201 correspond one-to-one with the multiple locking grooves 104. In this embodiment, the elastic locking hook 201 is located on the transmission rack 2, and the locking groove 104 is located on the half rail 1a. During the assembly process of the transmission rack 2 and the half rail 1a, the elastic locking hook 201 is forced into the locking groove 104 by external force and hooks into the locking groove 104, thereby achieving the locking of the transmission rack 2 and the half rail 1a.

[0056] In some examples, as shown in Figures 3 and 4, the side-mounted positioning mechanism includes positioning bosses 202 located at both ends of the transmission rack 2 and both ends of the side rail 1, and positioning grooves 105 into which the positioning bosses 202 are engaged. During the assembly process of the transmission rack 2 and the half rail 1a, the positioning bosses 202 and the positioning grooves 105 are first aligned. During the process of the two being inserted and positioned, the elastic locking hooks 201 and the locking grooves 104 lock synchronously.

[0057] In some examples, as shown in Figures 3-6, the side-mounted positioning mechanism further includes:

[0058] The first locking bar 203 extends from both sides of the transmission rack 2 along its width direction;

[0059] The first card slot 106 is located on the half rail 1a and its opening faces the first card strip 203 for insertion;

[0060] The second locking bar 107 extends from the half rail 1a toward the transmission rack 2;

[0061] The second slot 204 is located on the transmission rack 2 and its opening faces the second slot 107 for insertion.

[0062] While the first locking bar 203 is inserted into the first locking slot 106, the second locking bar 107 is also inserted into the second locking slot 204, forming a cross-lock. The first locking bar 203, the first locking slot 106, the second locking bar 107, and the second locking slot 204 all extend along the length of the track unit 100, ensuring that the transmission rack 2 and the side rail 1 are engaged throughout their entire length, thereby improving the connection strength between the two.

[0063] In some examples, as shown in Figures 12-15, the track unit 100 further includes a sliding contact line 3 extending along its length and engaged within the transmission rack 2. The sliding contact line 3 and the corresponding transmission rack 2 are of equal length. The sliding contact line 3 includes a column 301 with a notch 303 and a flange 302 extending from the notch 303. The transmission rack 2 has a positioning strip 211 protruding towards the sliding contact line 3 for engaging the notch 303 to position the sliding contact line 3. The transmission rack 2 has a plurality of spaced pressure posts 209 along its length. A limiting groove 2 is formed between the pressure posts 209 and the transmission rack 2 for the flange 302 to engage. 10. Thus, the sliding contact line 3 is fixed, and the column 301 passes through the limiting groove 210 and makes conductive contact with the conductive part of the traction trolley 9. Ribs 212 are connected between multiple teeth 208. Ribs 212 can improve the structural strength of teeth 208 on the one hand, and form a raceway between ribs 212 and transmission rack 2 for the traction wheel of traction trolley 9 to roll on the other hand. The traction wheel can reciprocate along the raceway. At the same time, the drive gear of traction trolley 9 meshes with transmission rack 2, causing traction trolley 9 to reciprocate along the length of transmission rack 2. Cloth hanging arms 901 are provided on both sides of traction trolley 9 along its direction of movement, as shown in Figures 22 and 23.

[0064] The splicing structure also includes stationary contacts 4 located at both ends of the sliding contact line 3 and movable contacts 5 that are elastically set and used for conductive contact with the stationary contacts 4. Both the stationary contacts 4 and the movable contacts 5 are pressed into the inner hole of the sliding contact line 3 to achieve a tight fit. The stationary contacts 4 do not protrude from the sliding contact line 3 and can be a solid structure or a hollow structure with one end blocked. When two adjacent transmission racks 2 are connected, the stationary contacts 4 and movable contacts 5 of the sliding contact lines 3 that are locked inside the two transmission racks 2 come into contact, and the two adjacent sliding contact lines 3 are connected to form an electric curtain track or an intelligent curtain track.

[0065] In some examples, as shown in Figures 18 and 19, both ends of the curtain track are adjustable with end caps 6. The end caps 6 can be finely adjusted along the length of the curtain track to achieve the function of adjusting the length of the curtain track. Specifically, the end caps 6 can be fitted onto the outside of the curtain track, and screws can be installed on the end caps 6. The screws pass through the end caps 6 and their heads abut against different positions along the length of the curtain track to fix the end caps 6 in different positions, thereby realizing the length adjustment of the curtain track.

[0066] In some examples, as shown in Figures 3-6, the docking positioning mechanism includes a positioning protrusion 205 protruding from one end face of the transmission rack 2 and a groove 206 recessed into the other end face of the transmission rack 2 for the positioning protrusion 205 to be inserted. The positioning protrusion 205 and the groove 206 are arranged in corresponding shapes and numbers. The number can be, but is not limited to, one, two, or three. The positioning protrusion 205 is preferably cylindrical, and the end of the positioning protrusion 205 facing away from the transmission rack 2 is tapered, which is more conducive to the insertion of the positioning protrusion 205 into the groove 206. In this embodiment, there are five positioning protrusions 205 arranged linearly. The cross-sectional area of ​​the positioning protrusion 205 located in the middle is larger than the cross-sectional area of ​​the other positioning protrusions 205.

[0067] In some examples, as shown in Figure 7, the docking locking mechanism also includes a separation hole 108 located on the side where the slot 103 is located and communicating with the slot 103 to push out the latch 102 that is engaged in the snap-fit ​​groove 117. When the curtain track needs to be disassembled, a tool is used to extend into the snap-fit ​​groove 117 through the separation hole 108 to apply pressure to the elastic latch 102, and the latch 102 separates from the snap-fit ​​groove 117 so that the latch 102 and the snap-fit ​​groove 117 are unlocked. At this time, the insert 101 can be separated from the slot 103.

[0068] In some examples, as shown in Figure 15, the transmission rack 2 is provided with a number of spaced protrusions 207 along its length direction. The number of protrusions 207 and the transmission rack 2 form the aforementioned second groove 204. The transmission rack 2 forms one side of the groove wall of the second groove 204, and the number of protrusions 207 are arranged side by side to form the other side of the groove wall of the second groove 204. The spaced protrusions 207 can leave space for the latch 102, and also facilitate the insertion of the second latch 107.

[0069] As shown in Figures 7 and 8, one end of the half-rail 1a protrudes to form a positioning pin 109 along its length, and the other end is recessed to form a positioning hole 110 for the positioning pin 109 to be inserted. The positioning pin 109 and the positioning hole 110 are correspondingly set in shape and number. The number can be, but is not limited to, one, two or three, etc., and they are distributed on the upper plate 111 and the lower plate 112. The positioning pin 109 is preferably cylindrical, and the end of the positioning pin 109 away from the transmission rack 2 is tapered, which is more conducive to the positioning pin 109 being inserted into the positioning hole 110. During the docking process of two adjacent half-rails 1a, the positioning pin 109 is first aligned with the positioning hole 110. During the docking process, the insert 101 is inserted into the slot 103, and the latch 102 is engaged with the latching groove 117 to lock the two adjacent half-rails 1a.

[0070] In some examples, both the half-rail 1a and the transmission rack 2 are made of insulating materials, which can be, but are not limited to, plastics. Plastics are lightweight and inexpensive, and both are injection molded, possessing high strength and rigidity. The half-rail 1a and the transmission rack 2 have different cross-sectional shapes along their respective length directions, as shown in Figures 20-21.

[0071] Working principle:

[0072] During assembly, firstly, the flange 302 of the sliding contact line 3 is inserted into the limiting groove 210 of the corresponding transmission rack 2 to complete the assembly. Then, the positioning bosses 202 at both ends of the transmission rack 2 are engaged in the positioning grooves 105 at both ends of the half rail 1a. At the same time, the first locking bar 203 is engaged in the first locking groove 106, the second locking bar 107 is engaged in the second locking groove 204, and the elastic locking hook 201 is engaged in the locking groove 104 under pressure to lock the transmission rack 2 and the half rail 1a on one side. Then, the above operation is repeated to lock the transmission rack 2 and the half rail 1a on the other side. At this time, the transmission rack 2 and the corresponding side rail 1 are assembled to form the track unit 100.

[0073] Then, multiple track units 100 are sequentially spliced ​​to form a curtain track of a predetermined length. During the splicing process, the positioning pins 109 and positioning holes 110 of two adjacent half-tracks 1a are aligned and inserted. At the same time, the insert 101 on one half-track 1a is inserted into the slot 103 in the other half-track 1a. The latch 102 on the insert 101 engages with the snap-fit ​​groove 117 to lock the two adjacent half-tracks 1a. Meanwhile, the transmission racks 2 in the two adjacent side tracks 1 are positioned and assembled by the insertion of the positioning protrusion 205 and the groove 206.

[0074] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A segmented curtain track, characterized in that: include: The track unit (100) is a plurality of such units. Each track unit (100) includes a side rail (1), a transmission rack (2) installed inside the side rail (1), a side positioning mechanism located between the transmission rack (2) and the side rail (1) to position the two, and a side locking mechanism for locking the two. The side rail (1) includes two half rails (1a) which together form an installation cavity for mounting the transmission rack (2). The splicing structure is located between two adjacent track units (100), including a docking locking mechanism for locking two adjacent side rails (1) and a docking positioning mechanism for inserting and positioning two adjacent transmission racks (2). The docking locking mechanism includes a protruding insert (101) at one end of the side rail (1), an elastic latch (102) elastically disposed on the insert (101), a slot (103) at the other end of the side rail (1) for inserting the insert (101) and a latching groove (117) recessed in the slot (103) for latching the latch (102).

2. A segmented curtain track according to claim 1, characterized in that: The side-mounted locking mechanism has multiple parts and is distributed at intervals along the length of the track unit (100). Each side-mounted locking mechanism includes an elastic locking hook (201) located on the transmission rack (2) and the side rail (1) respectively, and a locking groove (104) into which the elastic locking hook (201) is engaged.

3. A segmented curtain track according to claim 1, characterized in that: The side-mounted positioning mechanism includes positioning bosses (202) located at both ends of the transmission rack (2) and both ends of the side rail (1) and positioning grooves (105) into which the positioning bosses (202) are engaged.

4. A segmented curtain track according to claim 3, characterized in that: The side-mounted positioning mechanism also includes: The first locking bar (203) extends from both sides of the transmission rack (2) along its width direction; The first card slot (106) is located on the half rail (1a) and has an opening facing the first card strip (203) for insertion; The second locking bar (107) extends from the half rail (1a) toward the transmission rack (2); The second slot (204) is located on the drive rack (2) and has an opening facing the second rack (107) for insertion.

5. A segmented curtain track according to claim 1, characterized in that: The track unit (100) also includes a sliding contact line (3) extending along its length and engaged within the transmission rack (2); The splicing structure also includes stationary contacts (4) located at both ends of the sliding contact line (3) and a movable contact (5) that is elastically set and used for conductive contact with the stationary contacts (4).

6. A segmented curtain track according to claim 1, characterized in that: Both ends of the curtain track are adjustable and equipped with end caps (6).

7. A segmented curtain track according to claim 1, characterized in that: The docking positioning mechanism includes a positioning protrusion (205) protruding from one end face of the transmission rack (2) and a groove (206) recessed into the other end face of the transmission rack (2) for the positioning protrusion (205) to be inserted.

8. A segmented curtain track according to claim 1, characterized in that: The docking locking mechanism also includes a separation hole (108) located on the side of the slot (103) and communicating with the slot (103) to push out the latch (102) that is engaged in the latching groove (117).

9. A segmented curtain track according to claim 4, characterized in that: The transmission rack (2) is provided with a plurality of spaced protrusions (207) along its length direction, and the protrusions (207) and the transmission rack (2) form the aforementioned second groove (204).

10. A segmented curtain track according to claim 1, characterized in that: The half-rail (1a) and the transmission rack (2) are both injection molded, and the half-rail (1a) and the transmission rack (2) have different cross-sectional shapes along their respective length directions.

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