Fixing buckle assembly for curtain pull rope

Abstract

The utility model provides a fixing buckle assembly for a curtain pull rope. The fixing buckle assembly comprises a lower rail buckle arranged on a curtain lower rail in a clamped mode and a pull rope buckle arranged at an inner hole of the lower rail buckle. At least one first clamping groove is formed in the bottom face of the pull rope buckle and extends in the radial direction to penetrate through the inner wall face and the outer wall face of the pull rope buckle, and the top of the first clamping groove is narrowed. A second clamping groove corresponding to the first clamping groove is formed in the inner wall of the pull rope buckle, the bottom end of the second clamping groove extends to the first clamping groove, and the top end of the second clamping groove extends to the top face of the pull rope buckle. The structure is simple, the number of clamping matching parts is increased, the overall clamping effect can be enhanced, and loosening is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of curtain cord buckles, and more specifically to a fixing buckle assembly for a curtain pull cord. Background Art

[0002] The basic form of curtains is composed of multiple curtain pieces arranged between the upper beam (upper rail) and the lower beam (lower rail). The transmission device of the upper beam (upper rail) cooperates with more than two pull ropes. After the upper beam (upper rail) passes through each curtain piece and the lower beam (lower rail), the pull rope is passed through a fixed fastener located in the lower beam (lower rail) to fix the pull rope in the position of the lower beam (lower rail);

[0003] For example, in the fixed buckle structure of the curtain pull cord of patent CN205713886U, a clamping groove is set on the fixed fastener to clamp the pull cord, so that the assembly process of the pull cord and the fixed fastener plays an effective clamping positioning, thereby stabilizing the curtain; its overall structure is simple, and can provide a certain degree of clamping effect on the pull cord, but it only clamps the pull cord through a single part, and there is still room for improvement in the overall clamping effect. Utility Model Content

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to propose a fixing buckle assembly for a curtain cord, which has a simple structure and increases the clamping and matching parts, thereby strengthening the overall clamping and tightening effect and effectively preventing loosening.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a fixing buckle assembly for a curtain pull cord, comprising a lower rail buckle clamped on a lower rail of the curtain, and a pull cord buckle arranged at an inner hole of the lower rail buckle; at least one first clamping groove is arranged on the bottom surface of the pull cord buckle, the first clamping groove radially extends through the inner and outer wall surfaces of the pull cord buckle, and the top of the first clamping groove is narrowed; a second clamping groove is arranged on the inner wall of the pull cord buckle corresponding to the first clamping groove, the bottom end of the second clamping groove extends to the first clamping groove, and the top end of the second clamping groove extends to the top surface of the pull cord buckle.

[0007] In a preferred technical solution of the present invention, the second slot narrows in a direction away from the axis of the drawstring buckle.

[0008] In a preferred technical solution of the present utility model, the second slot is a V-shaped slot structure.

[0009] In a preferred technical solution of the present utility model, the first slot is a V-shaped slot structure.

[0010] In a preferred technical solution of the utility model, the expansion of the first card slot is larger than the expansion of the second card slot.

[0011] In a preferred technical solution of the utility model, the top diameter of the drawstring buckle is smaller than the bottom diameter, and the outer contour is a frustum-shaped structure.

[0012] In a preferred technical solution of the utility model, the outer wall of the lower rail buckle is provided with at least one third slot, the third slot extends along the axial direction of the lower rail buckle, and the top end of the third slot extends to the top surface of the lower rail buckle.

[0013] In a preferred technical solution of the utility model, the width of the upper port of the third slot is greater than the width of the lower port.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a fixing buckle assembly for a curtain pull cord, which has a simple structure. At least one first clamping groove is provided on the bottom surface of the pull cord buckle, and the first clamping groove extends radially through the inner and outer wall surfaces of the pull cord buckle, and the top of the first clamping groove is narrowed, serving as a first clamping portion for clamping the pull cord; a second clamping groove is provided on the inner wall of the pull cord buckle corresponding to the first clamping groove, and the bottom end of the second clamping groove extends to the first clamping groove, and the top end of the second clamping groove extends to the top surface of the pull cord buckle, serving as a second clamping portion for clamping the pull cord; and the first clamping groove and the second clamping groove are connected at a corner to form an intersection of clamping portions; thereby, multiple clamping and matching portions can be provided for the pull cord, and the overall clamping and tightening effect can be enhanced to effectively prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a first-view stereoscopic structural schematic diagram of a matching state of a fixing buckle assembly for a curtain pull cord provided in a specific embodiment of the utility model;

[0017] Figure 2 It is a second perspective three-dimensional structural schematic diagram of a matching state of a fixing buckle assembly for a curtain cord provided in a specific embodiment of the utility model;

[0018] Figure 3 It is a schematic diagram of a three-dimensional unfolded structure of a fixing buckle assembly for a curtain cord provided in a specific embodiment of the utility model;

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the drawstring buckle provided in a specific embodiment of the utility model from a first viewing angle;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the drawstring buckle from a second viewing angle provided in a specific embodiment of the utility model.

[0021] In the figure:

[0022] 100, lower rail buckle; 110, third slot; 120, limit ring; 130, fourth slot; 200, drawstring buckle; 210, first slot; 220, second slot. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0024] like Figures 1 to 5 As shown, a specific embodiment of the utility model discloses a fixing buckle assembly for a curtain pull cord, including a lower rail buckle 100 clamped on the lower rail of the curtain, and a pull cord buckle 200 arranged at the inner hole of the lower rail buckle 100; at least one first clamping groove 210 is provided on the bottom surface of the pull cord buckle 200, and the first clamping groove 210 extends radially through the inner and outer wall surfaces of the pull cord buckle 200, and the top of the first clamping groove 210 is narrowed; the inner wall of the pull cord buckle 200 is provided with a second clamping groove 220 corresponding to the first clamping groove 210, and the bottom end of the second clamping groove 220 extends to the first clamping groove 210, and the top end of the second clamping groove 220 extends to the top surface of the pull cord buckle 200.

[0025] The above-mentioned fixing buckle assembly for curtain pull cord has a simple structure, with the first card slot as the first part for clamping the pull cord; the second card slot as the second part for clamping the pull cord; and the first card slot and the second card slot are connected at the corner to form an intersection of clamping parts; thereby, multiple clamping and matching parts can be provided for the pull cord, especially when the pull cord wrapped around the outside of the pull cord buckle is clamped between the pull cord buckle and the lower rail buckle, the overall clamping and tightening effect can be enhanced to effectively prevent loosening; in actual use, the pull cord passes through the lower rail buckle, passes through and is wrapped around the pull cord buckle, and then the pull cord buckle is clamped into the interior of the lower rail buckle, and the pull cord is squeezed to achieve a firm clamping fit between the pull cord buckle and the lower rail buckle.

[0026] Furthermore, the number of the first card slots is 4, and the four first card slots are distributed in a circular array around the axis of the pull rope buckle. The number of the second card slots is the same as the number of the first card slots, and the positions correspond, providing clamping parts in more directions and points, facilitating actual rope winding and clamping cooperation, and facilitating operation.

[0027] Furthermore, if Figure 4 , Figure 5 As shown, the second slot 220 narrows in the direction away from the axis of the drawstring buckle 200 to form a narrowed slot. When the drawstring on the outer wall of the drawstring buckle is stuck in the second slot, the drawstring is squeezed into the second slot and is restricted by the slot to form an effective clamping fit, so that the drawstring buckle is firmly stuck in the lower rail buckle, and the drawstring is firmly tied.

[0028] Furthermore, the second clamping groove 220 is a V-shaped groove structure or a trapezoidal groove structure, both of which are narrowing structures, which can strengthen the limited clamping and fixation of the pull rope; among them, the V-shaped groove structure can reduce the cutting opening compared to the trapezoidal groove structure under the condition of the same groove depth, prevent the clamping mouth from being too large and affecting its overall structural strength, and a smaller opening will provide a more stable clamping effect, preventing the pull rope from loosening to a limited extent.

[0029] Furthermore, the first clamping groove 210 is a V-shaped groove structure or a trapezoidal groove structure, both of which are narrowing structures, which can strengthen the limited clamping and fixation of the pull rope; among them, the V-shaped groove structure can reduce the cutting opening compared to the trapezoidal groove structure under the condition of the same groove depth, prevent the clamping mouth from being too large and affecting its overall structural strength, and a smaller opening will provide a more stable clamping effect, preventing the pull rope from loosening to a limited extent.

[0030] Furthermore, the expansion of the first slot 210 is larger than that of the second slot 220, which can better adapt to pull ropes of different diameters and improve applicability; and a corner recessed area can be formed at the intersection of the first slot and the second slot to facilitate better insertion and clamping of the pull rope, effectively enhancing the overall clamping fit effect.

[0031] Furthermore, the top diameter of the drawstring buckle 200 is smaller than the bottom diameter, and the outer contour is a frustum-shaped structure. The distance between the outer wall of the drawstring buckle and the inner wall of the lower rail buckle is smaller than the diameter of the drawstring; so that the drawstring buckle can penetrate into the interior of the lower rail buckle and gradually tighten the drawstring, so that the drawstring can be better stuck in the corresponding slot, and it is also convenient for the drawstring to deform and provide an effective clamping effect.

[0032] Furthermore, if Figure 1 , Figure 3 As shown, the outer wall of the lower rail buckle 100 is provided with at least one third clamping groove 110, and the third clamping groove 110 extends along the axial direction of the lower rail buckle 100, and the top of the third clamping groove 110 extends to the top surface of the lower rail buckle 100; in the actual assembly and use process, the lower rail buckle is clamped at the lower rail, and the curtain ladder belt is clamped, and the ladder belt is irregular and soft, and the third clamping groove is designed for clamping and fixing the ladder belt; the upper end width of the third clamping groove 110 is greater than the lower end width, the upper width can facilitate alignment, and the lower narrowness can further strengthen the clamping and fixing of the ladder belt; further, the number of the third clamping grooves is 4, and the four third clamping grooves are distributed in a circular array around the axis of the lower rail buckle, providing more points, which can be better installed and matched with the ladder belt; it should be noted that the upper rail, curtain sheet, lower rail, ladder belt, and pull rope in the curtain are all common structural components, and the middle part of the lower rail buckle and the pull rope buckle is correspondingly provided with holes for threading the rope, and the specific connection, rope winding, and rope threading methods are not repeated.

[0033] Furthermore, a limiting ring 120 is fixedly provided on the bottom outer wall of the lower rail buckle 100. In particular, when the lower rail buckle is clamped in the hole of the lower rail, the limiting ring abuts against the outside of the hole to play a blocking and limiting role to remind the installation to be in place.

[0034] like Figure 1 As shown, a fourth slot 130 is provided at the bottom of the top surface of the limiting ring 120 corresponding to the plurality of third slots 110. One end of the third slot is connected to the fourth slot, and the other end extends to the outer wall of the limiting ring. The fourth slot is provided to form a notch at the limiting ring so that a tool can be inserted into the fourth slot later as a part for prying open the lower rail buckle, thereby facilitating the detachment of the lower rail buckle from the lower rail and facilitating overall disassembly and assembly.

[0035] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A fixing buckle assembly for a curtain pull cord, comprising a lower rail buckle clamped on a lower rail of a curtain, and a pull cord buckle arranged at an inner hole of the lower rail buckle; characterized in that: At least one first slot is provided on the bottom surface of the drawstring buckle. The first slot extends radially through the inner and outer wall surfaces of the drawstring buckle, and the top of the first slot is narrowed. The inner wall of the drawstring buckle is provided with a second slot corresponding to the first slot, the bottom end of the second slot extends to the first slot, and the top end of the second slot extends to the top surface of the drawstring buckle.

2. A fixing buckle assembly for a curtain cord according to claim 1, characterized in that: The second slot narrows in a direction away from the axis of the drawstring buckle.

3. A fixing buckle assembly for a curtain cord according to claim 2, characterized in that: The second card slot is a V-shaped slot structure.

4. A fixing buckle assembly for a curtain cord according to claim 3, characterized in that: The first slot is a V-shaped slot structure.

5. A fixing buckle assembly for a curtain cord according to claim 4, characterized in that: The expansion of the first card slot is larger than the expansion of the second card slot.

6. The fixing buckle assembly for curtain pull cord according to claim 1, characterized in that: The top diameter of the drawstring buckle is smaller than the bottom diameter, and the outer contour is a frustum-shaped structure.

7. The fixing buckle assembly for curtain pull cord according to claim 1, characterized in that: The outer wall of the lower rail buckle is provided with at least one third clamping groove, the third clamping groove extends along the axial direction of the lower rail buckle, and the top end of the third clamping groove extends to the top surface of the lower rail buckle.

8. The fixing buckle assembly for curtain pull cord according to claim 7, characterized in that: The width of the upper port of the third card slot is greater than the width of the lower port.

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