Simple curtain telescopic track capable of preventing derailing

Abstract

The utility model relates to a simple curtain telescopic track capable of preventing derailing, which comprises a main rod and auxiliary rods symmetrically connected at two ends of the main rod in a sliding mode, a derailing preventing assembly is arranged between the main rod and the auxiliary rods, and the derailing preventing assembly comprises a first blocking piece connected with the main rod and a second blocking piece connected with the auxiliary rods. The first blocking pieces are fixedly arranged at the two ends of the main rod to block the second blocking pieces, the second blocking pieces are clamped to the ends, extending into the main rod, of the auxiliary rods and slide synchronously with the auxiliary rods, and the ends, connected with the second blocking pieces, of the auxiliary rods can slide to the abutting positions of the second blocking pieces and the first blocking pieces from the middle point position of the main rod. The first gear piece is arranged on the main rod, the second gear piece is clamped on the auxiliary rod, the first gear piece abuts against the second gear piece to prevent the auxiliary rod from being separated from the main rod, the structure is simple, the number of parts is small, assembling is convenient, and production cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of curtain accessories, in particular to a simple curtain telescopic track capable of preventing derailment. Background Art

[0002] A general curtain telescopic track includes a main rod and a secondary rod. The secondary rod is telescoped inward and outward along the main rod. In order to prevent the secondary rod from completely sliding out of the main rod, a limit blocking structure is generally installed in the main rod to prevent the secondary rod from separating from the main rod. The existing limit blocking structure adopts a structure in which sliders block each other. Metal sliders need to be fixed on both the main rod and the secondary rod, and need to be installed and fixed with screws. Although metal sliders are wear-resistant, they have high production costs and are difficult to assemble. Utility Model Content

[0003] In view of the current status of the above-mentioned prior art, the technical problem to be solved by the utility model is to provide a simple curtain telescopic track that can prevent derailment. The anti-derailment component adopted by the utility model is simple, the production cost is low, and it is easy to assemble.

[0004] The utility model solves the above-mentioned technical problem and adopts the following technical scheme: a simple curtain telescopic track capable of preventing derailment, comprising a main rod and auxiliary rods symmetrically slidably connected to the two ends of the main rod, an anti-derail component is arranged between the main rod and the auxiliary rod, the anti-derail component comprises a first stopper connected to the main rod and a second stopper connected to the auxiliary rod, the first stopper is fixedly arranged at the two ends of the main rod to block the second stopper, the second stopper is clamped on the end of the auxiliary rod extending into the main rod and slides synchronously with the auxiliary rod, and the end of the auxiliary rod connected to the second stopper can slide from the midpoint of the main rod to the position where the second stopper and the first stopper abut each other.

[0005] Furthermore, the first stopper is a pin or a screw.

[0006] Furthermore, the second shifting member is made of plastic, a flat plate-shaped extension portion is provided above the second shifting member, a buckle is provided on the end of the flat plate-shaped extension portion facing the auxiliary rod, and a bayonet matched with the buckle is provided on the auxiliary rod.

[0007] Furthermore, an irregular extension portion is symmetrically provided below the second shifting member, a portion of the outer circumferential surface of the irregular extension portion is matched with the auxiliary rod, another portion of the outer circumferential surface of the irregular extension portion is matched with the main rod, and the end surface of the irregular extension portion is used to block the first shifting member, and the distance from the bottom surface of the irregular extension portion to the inner bottom surface of the main rod is greater than zero.

[0008] Furthermore, the second shifting member is provided with an arc-shaped avoidance opening.

[0009] Furthermore, the main rod is provided with a mounting track running through both ends along its length direction, the auxiliary rod is symmetrically slidably connected in the mounting track, two convex ridges are symmetrically provided on the inner wall of the mounting track, and the outer wall of the auxiliary rod is provided with a sliding groove matching the convex ridges.

[0010] Furthermore, the first stopper is fixedly arranged at two ends of the mounting track, and two first stoppers form a group and are symmetrically arranged on both sides of each end of the mounting track.

[0011] Furthermore, the end of the secondary rod extending out of the main rod is connected to an end cover, and the end surface of the end cover facing the main rod forms a barrier with the end surface of the main rod.

[0012] Compared with the prior art, the advantages of the utility model are: the utility model arranges a first gear member on the main rod and clamps the second gear member on the auxiliary rod, and the first gear member blocks the second gear member to prevent the auxiliary rod from separating from the main rod. The utility model has a simple structure, fewer parts, convenient assembly, and lower production cost. The first gear member adopts a pin or screw structure, which is easy to install and small in size. The second gear member is made of plastic, can be quickly clamped, and has low production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 It is a structural schematic diagram of the assembly of the second shifting member and the auxiliary rod of the utility model;

[0018] Figure 4 It is a side sectional view of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the second gear member of the utility model;

[0020] As shown in the figure, 1 main rod, 1.1 mounting track, 1.2 convex ridge, 2 auxiliary rod, 2.1 bayonet, 2.2 slide groove, 3 first gear member, 4 second gear member, 4.1 flat extension part, 4.2 buckle, 4.3 irregular extension part, 4.4 arc-shaped avoidance opening, 5 end cover. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, which indicate orientations or positional relationships, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0026] like Figure 1-5 As shown, the utility model provides a simple curtain telescopic track capable of preventing derailment, comprising a main rod 1 and secondary rods 2 symmetrically slidably connected to the two ends of the main rod 1, an anti-derail component is arranged between the main rod 1 and the secondary rod 2, the anti-derail component comprises a first stopper 3 connected to the main rod 1 and a second stopper 4 connected to the secondary rod 2, the first stopper 3 is fixedly arranged at the two ends of the main rod 1 to block the second stopper 4, the second stopper 4 is clamped on the end of the secondary rod 2 extending into the main rod 1 and slides synchronously with the secondary rod 2, the end of the secondary rod 2 connected to the second stopper 4 can slide from the midpoint of the main rod 1 to the position where the second stopper 4 and the first stopper 3 resist, so as to realize the telescopic movement of the secondary rod 2 relative to the main rod 1, and prevent the secondary rod 2 from separating from the main rod 1.

[0027] The first shifting member 3 is a pin or a screw, which has a simple structure and is convenient and quick to assemble.

[0028] Among them, the second gear member 4 is made of plastic, with a simple structure and low production cost. A flat plate-shaped extension portion 4.1 is provided on the top of the second gear member 4, and a buckle 4.2 is provided on the end of the flat plate-shaped extension portion 4.1 facing the auxiliary rod 2. The auxiliary rod 2 is provided with a bayonet 2.1 that cooperates with the buckle 4.2. The buckle 4.2 is engaged with the bayonet 2.1, so it can be installed by hand to improve assembly efficiency.

[0029] Among them, see Figure 4 , 5 An irregular extension part 4.3 is symmetrically provided below the second gear member 4, part of the outer circumferential surface of the irregular extension part 4.3 fits with the auxiliary rod 2 and matches in shape, and another part of the outer circumferential surface of the irregular extension part 4.3 fits with the main rod 1 and matches in shape. The end face of the irregular extension part 4.3 is used to block the first gear member 3, and the distance from the bottom surface of the irregular extension part 4.3 to the inner bottom surface of the main rod 1 is greater than zero, which avoids friction, reduces wear and prolongs the service life.

[0030] Among them, the second gear member 4 is provided with an arc-shaped avoidance opening 4.4 for avoiding the pull rope passing through the main rod 1 (not shown in the figure), and the midpoint of the main rod 1 is provided with a rope threading hole for passing the pull rope. When the auxiliary rods 2 on both sides slide close to each other, the arc-shaped avoidance openings 4.4 on the two second gear members 4 are assembled into a circular hole to avoid the pull rope passing through the midpoint.

[0031] Among them, the main rod 1 is provided with a mounting track 1.1 running through both ends along its length direction, and the auxiliary rod 2 is symmetrically slidably connected in the mounting track 1.1. Two convex ridges 1.2 are symmetrically provided on the inner wall of the mounting track 1.1, and a slide groove 2.2 cooperating with the convex ridge 1.2 is provided on the outer wall of the auxiliary rod 2. The slide groove 2.2 and the convex ridge 1.2 are engaged to play a sliding guide role, ensuring that the auxiliary rod 2 can slide smoothly left and right in the main rod 1, avoiding abnormal noise caused by assembly gaps, and having a better texture.

[0032] The first stopper 3 is fixedly arranged at both ends of the mounting track 1.1. Two first stoppers 3 form a group and are symmetrically arranged on both sides of each end of the mounting track 1.1. The symmetrical installation on both sides has a better blocking effect.

[0033] Among them, the end of the auxiliary rod 2 extending out of the main rod 1 is connected to an end cover 5, and the end surface of the end cover 5 facing the main rod 1 forms a barrier with the end surface of the main rod 1, which can ensure that a part of the auxiliary rod 2 is exposed outside the main rod 1, making it convenient for users to adjust the auxiliary rod 2 to slide left and right, and the end cover 5 can also play a decorative role.

[0034] The utility model arranges a first stopper 3 on the main rod 1, and clamps the second stopper 4 on the auxiliary rod 2. The first stopper 3 resists the second stopper 4 to prevent the auxiliary rod 2 from separating from the main rod 1. The utility model has a simple structure, fewer parts, convenient assembly, and lower production cost. The first stopper 3 adopts a pin or screw structure, which is easy to install and has a small size. The second stopper 4 is made of plastic, can be quickly clamped, and has a low production cost. During assembly, the second stopper 4 is first clamped with the end of the auxiliary rod 2, and then the auxiliary rod 2 is slid into the main rod 1, and the first stopper 3 is installed on the end of the main rod 1. The assembly efficiency is high and the number of parts is small.

[0035] Unless otherwise specified, the materials, reagents and experimental equipment involved in the embodiments of the present invention are all commercially available products in the field of curtain accessories.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A simple curtain telescopic track capable of preventing derailment, characterized in that: The invention comprises a main rod and auxiliary rods symmetrically slidably connected to two ends of the main rod, an anti-derail assembly is arranged between the main rod and the auxiliary rod, the anti-derail assembly comprises a first stopper connected to the main rod and a second stopper connected to the auxiliary rod, the first stopper is fixedly arranged at two ends of the main rod to block the second stopper, the second stopper is clamped on an end of the auxiliary rod extending into the main rod and slides synchronously with the auxiliary rod, and the end of the auxiliary rod connected to the second stopper can slide from the midpoint of the main rod to the position where the second stopper and the first stopper abut each other.

2. A derailment-proof simple curtain telescopic track according to claim 1, characterized in that: The first stopper is a pin or a screw.

3. A derailment-proof simple curtain telescopic track according to claim 1, characterized in that: The second shifting member is made of plastic, a flat plate-shaped extension portion is arranged above the second shifting member, a buckle is arranged at the end of the flat plate-shaped extension portion facing the auxiliary rod, and a bayonet matched with the buckle is arranged on the auxiliary rod.

4. A simple curtain telescopic track capable of preventing derailment according to claim 3, characterized in that: An irregular extension portion is symmetrically provided below the second shifting member, a portion of the outer circumferential surface of the irregular extension portion is matched with the auxiliary rod, another portion of the outer circumferential surface of the irregular extension portion is matched with the main rod, the end surface of the irregular extension portion is used to block the first shifting member, and the distance from the bottom surface of the irregular extension portion to the inner bottom surface of the main rod is greater than zero.

5. A derailment-proof simple curtain telescopic track according to claim 3, characterized in that: The second shifting member is provided with an arc-shaped avoidance opening.

6. A derailment-proof simple curtain telescopic track according to claim 1, characterized in that: The main rod is provided with a mounting track running through both ends along its length direction, the auxiliary rod is symmetrically slidably connected in the mounting track, two convex ridges are symmetrically arranged on the inner wall of the mounting track, and the outer wall of the auxiliary rod is provided with a sliding groove matching the convex ridges.

7. A derailment-proof simple curtain telescopic track according to claim 6, characterized in that: The first stop members are fixedly arranged at two ends of the mounting track. Two of the first stop members form a group and are symmetrically arranged on both sides of each end of the mounting track.

8. The derailment-proof simple curtain telescopic track according to claim 1, characterized in that: The end portion of the secondary rod extending out of the main rod is connected with an end cover, and the end surface of the end cover facing the main rod forms a block with the end surface of the main rod.

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