Curtain sliding rail manufacturing head
By designing the curtain track control head and utilizing a torsion spring and locking block structure to achieve self-locking, the problem of high-cost motors was solved, reducing the production cost of curtain tracks and improving the applicability of motors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-07
AI Technical Summary
Existing curtain tracks require a self-locking function, which usually necessitates the use of high-cost motors with self-locking capabilities, resulting in high production costs and limited applicability.
Design a curtain track control head, comprising a housing, a pulley, and a pivot. Utilizing a combination of torsion springs and locking blocks, the pulley is driven to rotate by a motor to achieve self-locking, preventing belt reverse rolling and reducing reliance on the motor.
This technology enables the use of ordinary motors to meet self-locking requirements, reducing the production cost of curtain tracks and improving the applicability of motors.
Smart Images
Figure CN224093325U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a curtain slide rail technical field especially relates to a curtain slide rail head. BACKGROUND
[0002] Traditional curtain slide rails usually adopt motor drive belt transmission, and some special designed curtains realize synchronous unfolding or retraction through dynamic balance of spring force and motor driving force, and obtain better consistency in visual effect, in order to facilitate curtain hovering, avoid the retraction of the curtain due to the spring pulling the belt reverse rolling, the curtain slide rail can only select the motor with self-locking function to limit the reverse rolling of the belt.
[0003] However, the cost of the motor with self-locking function is usually higher than that of the general motor, and the general motor is also difficult to compatible with the self-locking demand of the curtain slide rail, resulting in high production cost of the curtain slide rail, and limiting the applicability of the curtain slide rail. UTILITY MODEL CONTENTS
[0004] Therefore, the utility model provides a curtain slide rail head for solving the problems that the curtain slide rail driven by spring force in the prior art can only select the motor with self-locking function, the cost of the motor with self-locking function is usually higher than that of the general motor, the general motor is also difficult to compatible with the self-locking demand of the curtain slide rail, resulting in high production cost of the curtain slide rail, and limiting the applicability of the curtain slide rail.
[0005] In order to achieve one or part or all of the above purposes or other purposes, the utility model provides a curtain slide rail head, which comprises a shell, a belt pulley and a rotating shaft, a transmission cavity is arranged in the shell, a positioning column is vertically arranged on the inner wall of one side of the transmission cavity, a torsional spring is sleeved on the positioning column, the two ends of the torsional spring are outwardly bent to form bent portions, the circumferential side of the torsional spring is divided into a locking side and a release side by the two bent portions, two through openings of the transmission cavity are respectively formed in the side wall of the shell along the tangent direction of the positioning column, the belt pulley and the rotating shaft are coaxially and rotationally connected in the transmission cavity, the belt pulley is an inner hollow structure with through ends, and the torsional spring is enclosed in the belt pulley, a locking block is arranged on the inner wall of the belt pulley, the locking block is located on the locking side, the rotating shaft is opposite to the positioning column, one end of the rotating shaft penetrates out of the transmission cavity to the outside, a release block is arranged on the edge of the rotating shaft, the release block extends between the torsional spring and the inner wall of the belt pulley and is located on the release side, when the belt pulley rotates in two directions, the locking block pushes the corresponding bent portion, so that the torsional spring is spirally tightened and deformed, when the rotating shaft rotates in two directions, the release block pushes the corresponding bent portion, so that the torsional spring is spirally released and deformed and abuts against the locking block.
[0006] Preferably, the locking block is in strip shape and is arranged in the axial direction of the belt pulley.
[0007] Preferably, the locking blocks are provided in two and are spaced apart along the circumference of the pulley, and a reinforcing sheet is connected between the ends of the two locking blocks away from the inner wall of the pulley, and the reinforcing sheet is spaced apart from the torsion spring.
[0008] Preferably, a follower disc is coaxially fixed on the rotating shaft, and the follower disc abuts against the torsion spring on the side wall facing the positioning column, and the release block is arranged on the edge of the follower disc.
[0009] Preferably, the release block extends along the circumference of the follower disc to form a sheet structure.
[0010] Preferably, a plurality of reinforcing strips are arranged on one side wall of the release block and are uniformly distributed along the circumference of the release block and are arranged along the axial direction of the follower disc.
[0011] Preferably, the curtain rail manufacturing head further comprises a cover body, the transmission cavity penetrates through one side wall of the housing, the positioning column is arranged on the inner wall of the transmission cavity, the cover body is arranged on one side of the housing and detachably covers the opening of the transmission cavity, an inner stop edge is arranged on the inner wall of the transmission cavity along the circumference of the positioning column, an outer stop edge is arranged on the inner wall of the cover body opposite to the inner stop edge, one end of the pulley is rotatably sleeved on the inner stop edge, the other end of the pulley is rotatably sleeved on the outer stop edge, the rotating shaft is rotatably connected to the cover body and the connecting end thereof penetrates through the cover body to the outside, and a sleeving hole is arranged on the rotating shaft along the axial direction thereof.
[0012] The embodiment of the present application has the following beneficial effects:
[0013] After the curtain rail manufacturing head is used, one end of the belt of the curtain rail is first inserted into the transmission cavity through one of the through holes and is partially wound around the pulley, the other end of the belt is then fixedly connected through the other through hole, the pulley and the belt are driven, the curtain rail manufacturing head is then fixedly installed on one end of the curtain rail, and the motor is drivingly connected to the penetrating end of the rotating shaft, when the motor drives the rotating shaft to rotate in both directions, the release block pushes the corresponding bent portion, the torsion spring is forced to release the deformation and abuts against the locking block through the bent portion, thereby driving the pulley to synchronously rotate, and the belt is driven to roll, so that the curtain rail is controlled to be unfolded or retracted, when the motor is stopped, if the belt is pulled by the spring to generate a reverse rolling force or is rolled by human (such as a child), the pulley is forced to rotate or has a rotating tendency, the locking block pushes the corresponding bent portion, the torsion spring is forced to be deformed and tightened, the torsion spring is locked on the positioning column under the friction force, the further rotation of the pulley is limited, and the curtain rail is self-locked, thereby the curtain rail manufacturing head is connected to the general motor and the curtain rail with the self-locking requirement, the curtain rail with the self-locking requirement can also select the general motor, the production cost of the curtain rail is reduced, and the applicability of the curtain rail to the motor is improved. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] in:
[0016] Fig. 1 This is an exploded view of the present invention from one side of the casing.
[0017] Fig. 2 This is an exploded view of the present invention from the perspective of the other side of the casing;
[0018] Fig. 3 This is a side sectional view of the present invention.
[0019] In the diagram: 1. Housing; 11. Transmission cavity; 12. Positioning pin; 13. Passage port; 14. Inner flange; 2. Pulley; 21. Locking block; 22. Reinforcing plate; 3. Rotating shaft; 31. Follower plate; 32. Release block; 33. Reinforcing strip; 34. Socket hole; 4. Torsion spring; 41. Bending part; 5. Cover; 51. Outer flange. Detailed Implementation
[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.
[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0022] In order to make the person in this field better understand the technical scheme of the present application, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the drawings.
[0023] As shown in Figs. 1-3 A curtain rail head, comprising a shell 1, a pulley 2 and a rotating shaft 3, a transmission cavity 11 is arranged in the shell 1, a positioning column 12 is vertically arranged on the inner wall of one side of the transmission cavity 11, a torsional spring 4 is sleeved on the positioning column 12, the two ends of the torsional spring 4 are both outwardly bent to form bent portions 41, the two bent portions 41 divide the circumferential side of the torsional spring 4 into a locking side and a releasing side, two through openings 13 that connect the transmission cavity 11 are respectively arranged on the side wall of the shell 1 along the tangent direction of the positioning column 12, the pulley 2 and the rotating shaft 3 are coaxially and rotationally connected in the transmission cavity 11, the pulley 2 is an inner hollow structure with through ends, and the torsional spring 4 is enclosed in the pulley 2, a locking block 21 is arranged on the inner wall of the pulley 2, and the locking block 21 is located on the locking side, the rotating shaft 3 is opposite to the positioning column 12, one end of the rotating shaft 3 penetrates out of the transmission cavity 11 to the outside, a releasing block 32 is arranged on the edge of the rotating shaft 3, the releasing block 32 extends between the torsional spring 4 and the inner wall of the pulley 2 and is located on the releasing side, in use, one end of the belt of the curtain rail is inserted into the transmission cavity 11 through one of the through openings 13 and is partially wound around the pulley 2, and the other end of the belt is fixedly connected through the other through opening 13, so as to drive the pulley 2 and the belt, then the curtain rail head is fixedly installed at one end of the curtain rail, and a motor is drivingly connected with the penetrating end of the rotating shaft 3, when the motor drives the rotating shaft 3 to rotate in two directions, the releasing block 32 pushes the corresponding bent portion 41, so that the torsional spring 4 is spirally released and deformed and abuts against the locking block 21 through the bent portion 41, thereby driving the pulley 2 to rotate synchronously, and then driving the belt to roll, so as to control the expansion or contraction of the curtain rail; when the motor is stopped, if the belt generates a reverse rolling force due to the pulling of the spring or rolls due to the pulling of a person (such as a child), the pulley 2 will be forced to rotate or have a rotating tendency, so that the locking block 21 pushes the corresponding bent portion 41, and the torsional spring 4 is spirally tightened and deformed, so that the torsional spring 4 is locked on the positioning column 12 under the action of friction, thereby limiting the further rotation of the pulley 2 and helping the self-locking of the curtain rail, so that the curtain rail head is connected with the general motor and the curtain rail with the self-locking requirement, the curtain rail with the self-locking requirement can also select the general motor, the production cost of the curtain rail is reduced, and the applicability of the curtain rail to the motor is improved.
[0024] Further, the locking block 21 is in a strip shape and is arranged along the axial direction of the pulley 2, so as to improve the connection strength of the locking block 21 and the pulley 2, and in the case that the torsional spring 4 has a large axial distance or multiple groups of torsional springs 4, the locking block 21 can also trigger all the bent portions 41 of the torsional spring 4.
[0025] Further, the locking blocks 21 are provided with two, and are spaced along the circumference of the pulley 2, and the two locking blocks 21 are connected by a reinforcing sheet 22 away from one end of the inner wall of the pulley 2, and the reinforcing sheet 22 is spaced from the torsion spring 4, so as to correspond to the two bending portions 41 by the two locking blocks 21 respectively, reduce the angle of rotation required for the pulley 2 to trigger the torsion spring 4 to be locked, so that the pulley 2 can trigger the torsion spring 4 to be locked more quickly, and at the same time, the two locking blocks 21 are connected by the reinforcing sheet 22, so as to support each other, improve the structural strength and compression resistance of the locking block 21.
[0026] Further, the shaft 3 is coaxially provided with a follower plate 31, and the follower plate 31 is abutted with the torsion spring 4 on the side wall of the positioning column 12, so as to limit the movement of the shaft 3 to the direction of the torsion spring 4, and the release block 32 is arranged on the edge of the follower plate 31.
[0027] Further, the release block 32 extends along the circumference of the follower plate 31 to form a sheet structure, so as to improve the connection strength of the release block 32 and the follower plate 31, and at the same time, improve the compression resistance of the two ends of the release block 32 in the circumferential direction, so as to ensure that the end of the release block 32 can stably transmit the power of the shaft 3 to the torsion spring 4 and the pulley 2.
[0028] Further, a plurality of reinforcing strips 33 are provided on one side wall of the release block 32, and the plurality of reinforcing strips 33 are uniformly distributed along the circumference of the release block 32 and are arranged in the axial direction of the follower plate 31, so as to enhance the structural strength of the release block 32 by the reinforcing strips 33, improve the compression resistance of the release block 32 in the circumferential direction, and prolong the service life of the release block 32.
[0029] Further, the curtain sliding rail head further comprises a cover body 5, the transmission cavity 11 penetrates through one side wall of the shell 1, the positioning column 12 is arranged on the inner wall of the transmission cavity 11, the cover body 5 is arranged on one side of the shell 1 and detachably covers the opening of the transmission cavity 11, the inner wall of the transmission cavity 11 is provided with an inner stop 14 along the circumference of the positioning column 12, the inner wall of the cover body 5 is provided with an outer stop 51 opposite to the inner stop 14, one end of the pulley 2 is rotatably sleeved on the inner stop 14, the other end of the pulley 2 is rotatably sleeved on the outer stop 51, the shaft 3 is rotatably connected to the cover body 5, and the connecting end thereof penetrates through the cover body 5 to the outside, and the shaft 3 is provided with a sleeving hole 34 in the axial direction thereof, and the cross section of the sleeving hole 34 can be any shape, and in the embodiment, the cross section is preferably a waist shape, and in use, the output shaft of the motor is inserted into the sleeving hole 34, so that the motor directly drives the shaft 3.
[0030] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments, and the preferred embodiments of the present application are given in the drawings, but do not limit the patent scope of the present application. The present application can be realized in many different forms, and conversely, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing specific embodiments, or equivalently replace some of the technical features. Any equivalent structure made by using the content of the present application specification and drawings, directly or indirectly used in other related technical fields, is also within the patent protection scope of the present application.
Claims
1. A curtain track head, characterized in that, include: Housing, pulleys, and shaft; The housing has a transmission cavity, and a positioning post is vertically provided on one inner wall of the transmission cavity. A torsion spring is sleeved on the positioning post. Both ends of the torsion spring are bent outward to form a bending part. The two bending parts divide the periphery of the torsion spring into a locking side and a releasing side. Two through ports connecting to the transmission cavity are respectively opened on one side wall of the housing along the tangent direction of the positioning post. The pulley and the rotating shaft are rotatably connected to the positioning post in the transmission cavity. The pulley is a hollow structure with both ends through, and the torsion spring is enclosed inside. A locking block is provided on the inner wall of the pulley, and the locking block is located on the locking side. The rotating shaft is opposite to the positioning post, and one end of the rotating shaft extends out of the transmission cavity to the outside. A release block is provided on the edge of the rotating shaft, and the release block extends between the torsion spring and the inner wall of the pulley, and is located on the release side. When the pulley rotates in both directions, the locking block will push the corresponding bend, forcing the torsion spring spiral to tighten and deform; when the shaft rotates in both directions, the releasing block will push the corresponding bend, forcing the torsion spring spiral to loosen and deform and abut against the locking block.
2. The curtain track head according to claim 1, characterized in that, The locking block is strip-shaped and is arranged along the axial direction of the pulley.
3. A curtain track head according to claim 2, characterized in that, Two locking blocks are provided and are distributed at intervals along the circumference of the pulley. A reinforcing plate is connected between the ends of the two locking blocks away from the inner wall of the pulley, and the reinforcing plate is spaced apart from the torsion spring.
4. A curtain track head according to claim 1, characterized in that, A follower disk is coaxially fixed on the rotating shaft. The side wall of the follower disk facing the positioning column abuts against the torsion spring. The release block is located on the edge of the follower disk.
5. A curtain track head according to claim 4, characterized in that, The release block extends circumferentially along the follower disk to form a sheet-like structure.
6. A curtain track head according to claim 5, characterized in that, The release block has multiple reinforcing strips on one side wall. These reinforcing strips are evenly distributed around the circumference of the release block and are all arranged along the axial direction of the follower disc.
7. A curtain track head according to claim 1, characterized in that, The curtain track control head also includes a cover. The transmission cavity extends through one side wall of the housing. The positioning post is disposed on the inner wall of the transmission cavity. The cover is disposed on one side of the housing and detachably covers the opening of the transmission cavity. An inner baffle is provided on the inner wall of the transmission cavity along the circumference of the positioning post. An outer baffle is provided on the inner wall of the cover opposite to the inner baffle. One end of the pulley is rotatably sleeved on the inner baffle, and the other end of the pulley is rotatably sleeved on the outer baffle. The rotating shaft is rotatably connected to the cover, and its rotating end extends through the cover to the outside. A sleeve hole is provided on the rotating shaft along its axial direction.