Automatic curtain positioning lock

Abstract

The utility model relates to the technical field of automatic curtains, in particular to an automatic curtain positioning lock, which comprises an automatic track, the automatic track is provided with a horizontal transmission channel and a sliding block channel, and two sides of the sliding block channel are respectively provided with a rack; the driving block is matched in the sliding block channel through a pulley, the top of the driving block is provided with a connecting rod extending into the transmission channel, the connecting rod is connected with the synchronous belt, a sliding groove is horizontally formed in the driving block, and elastic teeth corresponding to the racks are arranged at the two ends of the sliding groove respectively; the triggering block is matched in the sliding groove, springs are arranged between the triggering block and the two ends of the sliding groove, a hook is arranged at the bottom of the triggering block, and the hook penetrates through an open groove in the bottom of the driving block and extends towards the lower portion of the automatic rail. According to the automatic curtain positioning lock, when a curtain applies acting force to the trigger block through the hook, the trigger block moves along the sliding groove, the elastic teeth on the two sides are extruded, the elastic teeth are made to be meshed with the racks, locking of the driving block is achieved, and the position of the curtain is prevented from being changed.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic curtains, in particular to an automatic curtain positioning lock. Background Art

[0002] Under existing technical conditions, electric curtains are generally suspended on guide rails through pulley sets. When the curtains are opened or closed, the curtain fabric is often lifted due to the activities of people, but some electric curtains lack locking functions, which will cause the ends of the curtains to move. When people leave, the curtains will not close tightly. Utility Model Content

[0003] The utility model provides an automatic curtain positioning lock. When the curtain applies force to a trigger block through a hook, the trigger block moves along a slide slot, thereby squeezing spring teeth on both sides so that the spring teeth mesh with a rack, thereby locking the drive block and preventing the curtain position from changing.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic curtain positioning lock, comprising: an automatic track, a horizontal transmission channel is provided at the top of the automatic track, a horizontal slider channel is provided at the bottom, the transmission channel and the slider channel are interconnected, a synchronous belt is provided in the transmission channel, and racks are provided on both sides of the slider channel; a driving block, the driving block is engaged in the slider channel through a pulley, and a connecting rod is provided at the top to extend into the transmission channel, the connecting rod is connected to the synchronous belt, a slide groove is horizontally provided inside the driving block, and spring teeth are provided at both ends of the slide groove respectively corresponding to the rack; a trigger block, the trigger block is engaged in the slide groove, and a spring is provided between the trigger block and the two ends of the slide groove, a hook is provided at the bottom of the trigger block, and the hook extends to the bottom of the automatic track through a slot running through the bottom of the driving block.

[0005] Preferably, windows are provided at both ends of the slide groove corresponding to the rack, and spring pieces are horizontally extended to both ends in the two windows on the same side, and the spring teeth are arranged on the outer side of the free ends of the spring pieces.

[0006] Preferably, each of the spring pieces is provided with a hemispherical protrusion on one side corresponding to the slide groove, and both ends of the trigger block are provided with guiding inclined surfaces corresponding to the protrusion.

[0007] Preferably, both ends of the driving block are respectively provided with penetrating screw holes corresponding to the slide grooves, each of the screw holes is matched with an adjusting screw, and the end of the spring corresponding to the adjusting screw is provided with a sliding spring seat.

[0008] Preferably, the pulley includes two ends distributed on the top and bottom of the driving block, and support wheels are provided on the inner side walls of the slider channel corresponding to both sides of the driving block.

[0009] The utility model has the beneficial effect that the automatic track is provided with a driving motor for driving the synchronous belt, and the driving motor drives the driving block to move along the slider channel through the synchronous belt according to the instruction of the controller, thereby realizing the opening and closing action of the curtain. The trigger block is kept in the center of the slide groove under the support of the spring, and provides the trigger block with the force to drag the curtain. When the curtain is pulled, the pulling force exerts a force on the trigger block through the hook. When the force breaks through the spring thrust, the trigger block moves along the slide groove, and then squeezes the spring teeth on both sides, so that the spring teeth are engaged with the rack, thereby realizing the locking of the driving block and avoiding the change of the position of the curtain. The spring teeth and the spring sheet form a ratchet structure, thereby providing a reliable locking force for the driving block. During the movement, the trigger block can smoothly and effectively provide the squeezing force for the spring teeth through the cooperation of the guiding inclined surface and the convex head, thereby improving the sensitivity of the locking function. By adjusting the screw to pre-press the spring, not only the neutral position of the trigger block can be adjusted, but also the triggering force of the trigger block can be changed, thereby ensuring the smooth autonomous movement of the curtain. The pulley and the support wheel ensure the walking stability of the driving block in the slider channel, and also ensure the reliability of the locking function in the locked state to avoid self-unlocking due to shaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0011] Figure 1 This is a schematic diagram of the internal longitudinal structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the internal cross-sectional structure of the utility model.

[0013] In the figure: 1. automatic track; 2. transmission channel; 3. slider channel; 4. synchronous belt; 5. rack; 6. driving block; 7. connecting rod; 8. slide groove; 9. spring tooth; 10. trigger block; 11. hook; 12. spring; 13. window; 14. spring piece; 15. convex head; 16. guiding inclined surface; 17. adjusting screw; 18. sliding spring seat; 19. pulley; 20. supporting wheel. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] according to Figure 1 , Figure 2 As shown, an automatic curtain positioning lock comprises: an automatic track 1, wherein a horizontal transmission channel 2 is provided at the top of the automatic track 1, and a horizontal slider channel 3 is provided at the bottom, wherein the transmission channel 2 and the slider channel 3 are interconnected, a synchronous belt 4 is provided in the transmission channel 2, and racks 5 are provided on both sides of the slider channel 3; a driving block 6, wherein the driving block 6 is engaged in the slider channel 3 through a pulley 19, and a connecting rod 7 extending into the transmission channel 2 is provided at the top, wherein the connecting rod 7 is connected to the synchronous belt 4, a slide groove 8 is horizontally provided inside the driving block 6, and spring teeth 9 are provided at both ends of the slide groove 8 corresponding to the rack 5; a trigger block 10, wherein the trigger block 10 is engaged in the slide groove 8, and a spring 12 is provided between the trigger block 10 and the two ends of the slide groove 8, and a hook 11 is provided at the bottom of the trigger block 10, wherein the hook 11 extends to the bottom of the automatic track 1 through a slot penetrating the bottom of the driving block 6.

[0016] In the above arrangement, the automatic track 1 is provided with a driving motor for driving the synchronous belt 4. The driving motor drives the driving block 6 to move along the slider channel 3 through the synchronous belt 4 according to the instruction of the controller, thereby realizing the opening and closing action of the curtain. The trigger block 10 is maintained in the center of the slide groove 8 under the support of the spring 12, and provides the trigger block 10 with the force to drag the curtain. When the curtain is pulled, the pulling force exerts a force on the trigger block 10 through the hook 11. When the force breaks through the thrust of the spring 12, the trigger block 10 moves along the slide groove 8, and then squeezes the spring teeth 9 on both sides, so that the spring teeth 9 engage with the rack 5, thereby realizing the locking of the driving block 6 and preventing the position of the curtain from changing.

[0017] Windows 13 are provided at both ends of the slide slot 8 corresponding to the rack 5 , and spring pieces 14 are horizontally extended to both ends in the two windows 13 on the same side, and the spring teeth 9 are arranged on the outside of the free ends of the spring pieces 14 .

[0018] In this arrangement, the spring teeth 9 and the spring sheet 14 form a ratchet structure, thereby providing a reliable locking force for the drive block 6 .

[0019] A hemispherical protrusion 15 is provided on one side of each of the elastic pieces 14 corresponding to the slide groove 8 , and guiding inclined surfaces 16 are provided on both ends of the trigger block 10 corresponding to the protrusion 15 .

[0020] In this arrangement, the trigger block 10 can smoothly and effectively provide a squeezing force to the spring tooth 9 during the movement through the cooperation between the guiding inclined surface 16 and the protruding head 15, thereby improving the sensitivity of the locking function.

[0021] The two ends of the driving block 6 are respectively provided with screw holes corresponding to the slide slots 8 , each of the screw holes is matched with an adjusting screw 17 , and the end of the spring 12 corresponding to the adjusting screw 17 is provided with a sliding spring seat 18 .

[0022] By pre-stressing the spring 12 by adjusting the screw 17, not only the neutral position of the trigger block 10 can be adjusted, but also the triggering force of the trigger block 10 can be changed, thereby ensuring the smooth autonomous movement of the curtain.

[0023] The pulley 19 includes two ends distributed at the top and bottom of the driving block 6 , and support wheels 20 are provided on both sides of the driving block 6 corresponding to the inner side walls of the slider channel 3 .

[0024] Through this arrangement, the pulley 19 and the support wheel 20 ensure the walking stability of the driving block 6 in the slider channel 3, and also ensure the reliability of the locking function in the locked state to avoid self-unlocking due to shaking.

[0025] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An automatic curtain positioning lock, characterized in that ,include: An automatic track (1), wherein a horizontal transmission channel (2) is provided at the top of the automatic track (1), and a horizontal slider channel (3) is provided at the bottom, the transmission channel (2) and the slider channel (3) are interconnected, a synchronous belt (4) is provided in the transmission channel (2), and racks (5) are provided on both sides of the slider channel (3); A driving block (6), wherein the driving block (6) is engaged in the slider channel (3) via a pulley (19), and a connecting rod (7) is provided on the top thereof and extends into the transmission channel (2), wherein the connecting rod (7) is connected to the synchronous belt (4), and a slide groove (8) is provided horizontally inside the driving block (6), and spring teeth (9) are provided at both ends of the slide groove (8) corresponding to the rack (5); A trigger block (10) is fitted in the slide groove (8), and a spring (12) is provided between the trigger block (10) and the two ends of the slide groove (8). A hook (11) is provided at the bottom of the trigger block (10), and the hook (11) extends to the bottom of the automatic track (1) through a slot that passes through the bottom of the driving block (6).

2. The automatic curtain positioning lock according to claim 1, characterized in that: Windows (13) are provided at both ends of the slide groove (8) corresponding to the rack (5), and spring pieces (14) are horizontally extended to both ends in the two windows (13) on the same side, and the spring teeth (9) are arranged on the outside of the free ends of the spring pieces (14).

3. The automatic curtain positioning lock according to claim 2, characterized in that: Each of the spring pieces (14) is provided with a hemispherical protrusion (15) on one side corresponding to the slide groove (8), and both ends of the trigger block (10) are provided with guiding inclined surfaces (16) corresponding to the protrusion (15).

4. The automatic curtain positioning lock according to claim 1, characterized in that: The two ends of the driving block (6) are respectively provided with screw holes penetrating therethrough corresponding to the slide groove (8), each of the screw holes is matched with an adjusting screw (17), and the end of the spring (12) corresponding to the adjusting screw (17) is provided with a sliding spring seat (18).

5. The automatic curtain positioning lock according to claim 1, characterized in that: The pulley (19) includes two ends distributed at the top and bottom of the driving block (6), and support wheels (20) are provided on both sides of the driving block (6) corresponding to the inner side walls of the slider channel (3).

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