Sectional type transmission rack for electric curtain

Abstract

The invention relates to the technical field of curtains, in particular to a sectional type transmission rack for an electric curtain, each transmission unit comprises a rack body and a conductive assembly, and the rack body is provided with a first positioning mechanism; a second positioning mechanism used for preliminarily positioning the rack body and the curtain frame and a locking mechanism used for locking the rack body and the curtain frame are arranged between the rack body and the curtain frame, the conductive assembly comprises a sliding contact line clamped in the rack body, and the end of the sliding contact line is provided with a conductive connector used for being in conductive contact with the sliding contact line of the adjacent transmission unit; the rack bodies of the adjacent transmission units are inserted and positioned through the first positioning mechanism to complete splicing, the adjacent sliding contact lines are conducted through the conductive connectors, and therefore transmission racks of different length specifications are formed through splicing, and the transmission racks and the curtain frame are fixed through the second positioning mechanism and the locking mechanism to form curtain rails of different length specifications. The traditional processes of field measurement, cutting, secondary assembly and the like are omitted, and the transportation cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of curtains, and in particular to a segmented transmission rack for electric curtains. Background Art

[0002] Electric curtains generally include a curtain track and a traction mechanism that reciprocates along the curtain track. The curtain track includes a curtain frame and a transmission rack located inside the curtain frame and meshing with the driving gear of the traction mechanism. Curtain tracks in the prior art are generally customized products, which require on-site size measurement and cutting and assembly according to the measured size. It is necessary to go back and forth between the installation site and the production site. The process is cumbersome and time-consuming. In addition, the curtain track after cutting and assembly is in an integrated long strip shape, which greatly increases the transportation cost. Therefore, a spliced ​​curtain track is urgently needed to reduce time and 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 curtain rails in the prior art are generally customized products, which need to be measured on site and cut and assembled according to the measured dimensions, and need to go back and forth between the installation site and the production site, the process is cumbersome and time-consuming, and the curtain rails after cutting and assembly are in the shape of an integrated long strip, which greatly increases the transportation cost. A segmented transmission rack for electric curtains is now provided.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solution: a segmented transmission rack for electric curtains, which is located inside the curtain frame and cooperates with the driving gear of the traction drive mechanism to make the traction drive mechanism reciprocate along the length direction of the transmission rack, and the transmission rack includes a plurality of transmission units spliced ​​in sequence, each of which includes:

[0005] The rack body has a first positioning mechanism at its end along the length direction for inserting and positioning with the rack body of the adjacent transmission unit, and a second positioning mechanism for preliminarily positioning the rack body and the curtain frame and a locking mechanism for locking the rack body;

[0006] And a conductive component, including a busbar extending along the length direction of the rack body and clamped in the rack body, the busbar is in conductive contact with the conductive part of the traction drive mechanism and the end of the busbar is provided with a conductive connector for conductive contact with the busbar of an adjacent transmission unit.

[0007] Furthermore, the first positioning mechanism includes a positioning boss protruding from an end surface of one end of the rack body and a positioning hole recessed in the other end surface of the rack body and for the positioning boss to be inserted into.

[0008] Furthermore, the locking mechanism includes lock buckles and lock slots respectively located on the rack body and the curtain frame for the lock buckles to be inserted into. There are multiple lock buckles and lock slots and they are spaced apart along the length direction of the transmission unit.

[0009] Furthermore, the conductive joint includes a stationary contact and an elastically arranged moving contact respectively located at two ends of the busbar.

[0010] Furthermore, the second positioning mechanism includes positioning bosses respectively located at both ends of the rack body and both ends of the curtain frame, and positioning grooves for the positioning bosses to be inserted into.

[0011] Furthermore, the rack body is formed with first plug-in parts on both sides along the width direction thereof, and the inner peripheral wall of the curtain rack is formed with a first plug-in cavity for inserting the first plug-in part;

[0012] The curtain frame is formed with second plug-in parts on both sides along the width direction thereof, and the rack body is formed with a second plug-in cavity for the second plug-in part to be inserted.

[0013] Furthermore, the rack body is formed with a plurality of spaced-apart clamping posts along its length direction, and the plurality of clamping posts are arranged side by side to form a cavity wall on one side of the second plug-in cavity.

[0014] Furthermore, the busbar includes a conductive column and a convex edge protruding along the width direction of the conductive column;

[0015] The rack body is protruded along its length direction to form a plurality of buckles arranged at intervals, and a clamping groove for the convex edge to be clamped is formed between the buckle and the rack body.

[0016] Furthermore, the rack body includes a plurality of transmission teeth arranged at intervals and ribs for connecting the plurality of transmission teeth, and a raceway for the traction wheel of the traction drive mechanism to roll is formed between the ribs and the rack body.

[0017] Furthermore, the rack body is made of insulating material and is injection molded.

[0018] The beneficial effects of the present invention are as follows: the present invention utilizes a first positioning mechanism to insert and position the rack bodies of adjacent transmission units to complete the splicing, and a conductive joint conducts adjacent busbars, thereby splicing to form transmission racks of different lengths, and utilizes a second positioning mechanism and a locking mechanism to fix the transmission rack and the curtain rack to form curtain tracks of different lengths, thereby eliminating the traditional on-site measurement, cutting, secondary assembly and other processes, and reducing transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 is an exploded view of the present invention;

[0022] Figure 3 is a side view of the present invention;

[0023] Figure 4 It is a three-dimensional schematic diagram of the rack body from the first perspective;

[0024] Figure 5 yes Figure 4 A partial enlarged view of part A;

[0025] Figure 6 It is a three-dimensional schematic diagram of the rack body from the second perspective;

[0026] Figure 7 yes Figure 6 A partial enlarged view of part B;

[0027] Figure 8 It is a schematic diagram of the structure of the conductive joint;

[0028] Fig. 9 This is the assembly diagram of the transmission unit and the curtain rack;

[0029] Fig.10 This is a split diagram of the transmission unit and the curtain rack;

[0030] Fig.11 It is the cross-sectional shape at different positions of the rack body;

[0031] In the figure:

[0032] 100. Transmission unit;

[0033] 1. rack body; 101. positioning boss; 102. positioning hole; 103. lock buckle; 104. positioning boss; 105. first plug-in portion; 106. second plug-in cavity; 107. clamping column; 108. buckle; 109. transmission tooth; 110. rib; 111. positioning strip;

[0034] 2. Conductive assembly; 201. Busbar; 2011. Conductive column; 2012. Lug; 2013. Notch; 202. Conductive joint; 202a. Stationary contact; 202b. Moving contact;

[0035] 3. Curtain rack; 301. Locking slot; 302. Positioning slot; 303. First plug-in cavity; 304. Second plug-in portion. DETAILED DESCRIPTION

[0036] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention, and directions and references (e.g., up, down, left, right, etc.) may only be used to help describe the features in the drawings. Therefore, the following specific embodiments are not to be taken in a limiting sense, and the scope of the subject matter claimed is limited only by the attached claims and their equivalents.

[0037] like Figure 1 and Figure 2 As shown, a segmented transmission rack for electric curtains is located inside the curtain frame 3 and cooperates with the driving gear of the traction drive mechanism to make the traction drive mechanism reciprocate along the length direction of the transmission rack. The transmission rack includes a plurality of transmission units 100 spliced ​​in sequence, and the plurality of transmission units 100 have different length specifications. The curtain frame 3 includes a plurality of frame units spliced ​​in sequence, and the plurality of frame units also have different length specifications. The plurality of transmission units 100 correspond to the plurality of frame units one by one and each transmission unit 100 is fixed in the corresponding frame unit. When two adjacent frame units are spliced, the corresponding transmission units 100 fixed in the frame units are also spliced ​​synchronously, thereby forming the required curtain track. Each transmission unit 100 includes a rack body 1 and a conductive component 2.

[0038] The rack body 1 is provided with a first positioning mechanism at the end portion along the length direction thereof for plugging and positioning with the rack body 1 of the adjacent transmission unit 100. When two adjacent frame units are spliced, the two transmission units 100 correspondingly fixed in the two frame units are plugged and matched through the first positioning mechanism to achieve the lateral and longitudinal positioning of the two; and a second positioning mechanism for preliminarily positioning the two and a locking mechanism for locking the two are provided between the rack body 1 and the curtain rack 3;

[0039] The conductive component 2 includes a busbar 201 extending along the length direction of the rack body 1 and clamped in the rack body 1. The length of the busbar 201 is equal to the length of the corresponding rack body 1. The busbar 201 is in conductive contact with the conductive part of the traction drive mechanism and a conductive connector 202 is provided at the end of the busbar 201 for conductive contact with the busbar 201 of the adjacent transmission unit 100. When two adjacent rack bodies 1 are plugged in and matched, the corresponding busbars 201 clamped inside the two rack bodies 1 are connected to each other through the conductive connector 202 located at their ends.

[0040] First, the busbar 201 is inserted into the corresponding rack body 1 to form the transmission unit 100, and then the transmission unit 100 and the corresponding frame unit are positioned by the second positioning mechanism and locked by the locking mechanism. The two are assembled to form a track unit, and multiple track units are spliced ​​in sequence to form a curtain track of a predetermined length. During the process, while two adjacent frame units are spliced ​​and fixed, two adjacent rack bodies 1 are plugged and positioned by the first positioning mechanism, and two adjacent busbars 201 are connected to each other through the conductive connector 202. The traction drive mechanism can move back and forth along the curtain track to realize the opening or closing of the curtain.

[0041] In some examples, such as Figure 4-Figure 7 As shown, the first positioning mechanism includes a positioning boss 101 protruding from the end surface of one end of the rack monomer and a positioning hole 102 recessed in the other end surface of the rack monomer and for the positioning boss 101 to be inserted into. The shapes and numbers of the positioning boss 101 and the positioning hole 102 are correspondingly arranged, and the number can be but is not limited to one, two or three, etc. The positioning boss 101 is preferably cylindrical, and the end of the positioning boss 101 away from the rack body 1 is a conical structure, which is more conducive to the insertion of the positioning boss 101 into the positioning hole 102. In this embodiment, the number of positioning bosses 101 is five, and they are arranged linearly. The cross-sectional area of ​​the positioning boss 101 located in the middle is larger than the cross-sectional area of ​​the other positioning bosses 101.

[0042] In some examples, such as Fig. 9 and Fig.10 As shown, the locking mechanism includes a lock buckle 103 located on the rack body 1 and the curtain rack 3 respectively, and a lock groove 301 for the lock buckle 103 to be inserted into. The lock buckle 103 and the lock groove 301 are both provided in plurality and are spaced apart along the length direction of the transmission unit 100. In this embodiment, the lock buckle 103 is located on the rack body 1, and the lock groove 301 is located on the curtain rack 3. The lock buckle 103 has a certain elasticity and can be inserted into the lock groove 301 under the force of an external force to lock the rack body 1 and the curtain rack 3.

[0043] In some examples, such as Figure 8 As shown, the conductive connector 202 includes a stationary contact 202a and a resiliently arranged moving contact 202b respectively located at both ends of the bus bar 201. The stationary contact 202a and the moving contact 202b are both pressed into the inner hole of the bus bar 201 to achieve a tight fit. The stationary contact 202a does not protrude from the bus bar 201, and it can be a solid structure or a hollow structure with one end blocked. When the moving contact 202b contacts the stationary contact 202a, the two adjacent bus bars 201 are conductive.

[0044] In some examples, such as Fig.10As shown, the second positioning mechanism includes positioning bosses 104 respectively located at both ends of the rack body 1 and the curtain frame 3 and positioning grooves 302 for the positioning bosses 104 to be inserted into. The positioning bosses 104 match the positioning grooves 302 in shape and are roughly rectangular.

[0045] In some examples, such as Figure 4-Figure 7 As shown, the rack body 1 is formed with first plug-in parts 105 on both sides along the width direction thereof, and the inner peripheral wall of the curtain frame 3 is formed with a first plug-in cavity 303 for inserting the first plug-in part 105, and both the first plug-in part 105 and the first plug-in cavity 303 extend along the length direction of the transmission unit 100;

[0046] The curtain frame 3 is formed with second plug-in parts 304 on both sides along the width direction thereof, and the rack body 1 is formed with a second plug-in cavity 106 for the second plug-in part 304 to be inserted into, and the second plug-in part 304 and the second plug-in cavity 106 also extend along the length direction of the transmission unit 100;

[0047] When the transmission unit 100 is assembled with the frame unit, the first plug-in portion 105 is inserted into the first plug-in cavity 303 while the second plug-in portion 304 is inserted into the second plug-in cavity 106 to form a cross-locking, further improving the connection strength between the transmission unit 100 and the curtain rack 3.

[0048] In some examples, such as Figure 4 and Figure 5 As shown, the rack body 1 is formed with a plurality of spaced-apart snap-in columns 107 along its length direction, and the plurality of snap-in columns 107 are arranged side by side to form a side cavity wall of the second plug-in cavity 106 . The spaced-apart snap-in columns 107 can leave space for the lock buckle 103 and also facilitate the insertion of the second plug-in portion 304 .

[0049] In some examples, such as Figure 8 As shown, the busbar 201 includes a conductive column 2011 and a convex edge 2012 protruding along the width direction of the conductive column 2011, there are two convex edges 2012, and each convex edge 2012 extends along the length direction of the conductive column 2011, the conductive column 2011 has a notch 2013, and the convex edge 2012 can be extended from the notch 2013, and the rack body 1 protrudes toward the direction of the busbar 201 with a positioning strip 111 for inserting into the notch 2013 to position the busbar 201;

[0050] The rack body 1 is protruded along its length direction to form a plurality of spaced buckles 108 , and a slot for the flange 2012 to be inserted into is formed between the buckle 108 and the rack body 1 .

[0051] In some examples, such as Figure 6 and Figure 7As shown, the rack body 1 includes a plurality of transmission teeth 109 arranged at intervals and ribs 110 for connecting the plurality of transmission teeth 109. The ribs 110 can improve the structural strength of the transmission teeth on one hand, and on the other hand, a rolling track for the traction wheel of the traction drive mechanism to roll is formed between the ribs 110 and the rack body 1, and the traction wheel can reciprocate along the rolling track.

[0052] In some examples, the rack body 1 is made of insulating material, which may be but is not limited to plastic, etc. Plastic is light and cheap, and the rack body 1 is injection molded, with high strength and rigidity. The rack body 1 has different cross-sectional shapes along its length, such as Fig.11 shown.

[0053] Working principle:

[0054] First, the convex edge 2012 of the busbar 201 is inserted into the corresponding groove of the rack body 1 to form the transmission unit 100, and then the positioning boss 104 of the rack body is inserted into the positioning groove 302 on the curtain frame 3 for positioning, while the first plug-in portion 105 is inserted into the first plug-in cavity 303, the second plug-in portion 304 is inserted into the second plug-in cavity 106, and the lock buckle 103 is inserted into the lock groove 301. At this time, the transmission unit 100 and the corresponding frame unit are assembled to form a track unit, and multiple track units are spliced ​​in turn to form a curtain track of a predetermined length. During the process, while two adjacent frame units are spliced ​​and fixed, two adjacent rack bodies 1 are plugged and positioned with the positioning boss 101 and the positioning hole 102, and two adjacent busbars 201 are connected to each other through the conductive connector 202. The traction drive mechanism can move back and forth along the curtain track to realize the opening or closing of the curtain.

[0055] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A segmented transmission rack for electric curtains, which is located inside the curtain frame (3) and is in transmission cooperation with the driving gear of the traction drive mechanism so that the traction drive mechanism moves back and forth along the length direction of the transmission rack, characterized in that: The transmission rack comprises a plurality of transmission units (100) which are spliced ​​in sequence, and each transmission unit (100) comprises: The rack body (1) is provided with a first positioning mechanism at its end along the length direction for plugging and positioning with the rack body (1) of an adjacent transmission unit (100), and a second positioning mechanism for preliminarily positioning the rack body (1) and the curtain rack (3) and a locking mechanism for locking the rack body (1) and the curtain rack (3) are provided between the rack body (1) and the curtain rack (3); and a conductive assembly (2), comprising a busbar (201) extending along the length direction of the rack body (1) and clamped in the rack body (1), the busbar (201) being in conductive contact with a conductive portion of a traction drive mechanism, and a conductive connector (202) for conductive contact with a busbar (201) of an adjacent transmission unit (100) being provided at an end of the busbar (201).

2. The segmented transmission rack for electric curtains according to claim 1 is characterized in that: The first positioning mechanism comprises a positioning boss (101) protruding from an end surface of one end of the rack body (1) and a positioning hole (102) recessed in the other end surface of the rack body (1) and for the positioning boss (101) to be inserted into.

3. The segmented transmission rack for electric curtains according to claim 1 is characterized in that: The locking mechanism comprises a lock buckle (103) and a lock slot (301) respectively located on the rack body (1) and the curtain rack (3), and a lock slot (301) for the lock buckle (103) to be inserted into. The lock buckle (103) and the lock slot (301) are both provided in plurality and are spaced apart along the length direction of the transmission unit (100).

4. The segmented transmission rack for electric curtains according to claim 1 is characterized in that: The conductive joint (202) comprises a stationary contact (202a) and a resiliently arranged moving contact (202b) respectively located at two ends of the busbar (201).

5. The segmented transmission rack for electric curtains according to claim 1 is characterized in that: The second positioning mechanism comprises positioning bosses (104) respectively located at two ends of the rack body (1) and two ends of the curtain frame (3), and positioning grooves (302) for the positioning bosses (104) to be snapped into.

6. The segmented transmission rack for electric curtains according to claim 1 is characterized in that: The rack body (1) is formed with first plug-in parts (105) on both sides along its width direction, and the inner peripheral wall of the curtain rack (3) is formed with a first plug-in cavity (303) for inserting the first plug-in part (105); The curtain frame (3) is formed with second plug-in parts (304) on both sides along its width direction, and the rack body (1) is formed with a second plug-in cavity (106) for the second plug-in part (304) to be inserted.

7. The segmented transmission rack for electric curtains according to claim 6, characterized in that: The rack body (1) is formed with a plurality of spaced-apart clamping columns (107) along its length direction, and the plurality of clamping columns (107) are arranged side by side to form a side cavity wall of the second plug-in cavity (106).

8. The segmented transmission rack for electric curtains according to claim 1, characterized in that: The busbar (201) comprises a conductive column (2011) and a convex edge (2012) formed protruding along the width direction of the conductive column (2011); The rack body (1) is protruded along its length direction to form a plurality of spaced-apart buckles (108), and a slot for the convex edge (2012) to be snapped into is formed between the buckle (108) and the rack body (1).

9. The segmented transmission rack for electric curtains according to claim 1, characterized in that: The rack body (1) comprises a plurality of transmission teeth (109) arranged at intervals and ribs (110) for connecting the plurality of transmission teeth (109); a rolling track for a traction wheel of a traction drive mechanism to roll is formed between the ribs (110) and the rack body (1).

10. The segmented transmission rack for electric curtain according to claim 1, characterized in that: The rack body (1) is made of insulating material and is injection molded.

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