Pull rod type roller shutter with stably installed handle

Abstract

The utility model relates to the technical field of curtains, and discloses a pull rod type roller shutter with a handle installed stably, which comprises a pull rod assembly connected with one end of a pull rope, the pull rod assembly comprises a pull rod, the handle and an installation shaft rod, the pull rod is hollow, an insertion column is arranged on the upper portion of the installation shaft rod, and the insertion column is inserted into the inner side of the lower end of the pull rod in a close fit mode. The handle is provided with a mounting inner cavity, the lower portion of the pull rod and the mounting shaft bar are both arranged in the mounting inner cavity, and the outer side wall of the mounting shaft bar abuts against the inner side wall of the mounting inner cavity for close fit. According to the pull rod type roller shutter with the stably installed handle, the handle assembly structure is simple, and the production cost is low; the handle and the pull rod are fixed through the installation shaft bar, the handle is installed stably and is not prone to falling off, and use is reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of curtains, in particular to a pull-rod type rolling curtain with a firmly installed handle. Background Art

[0002] Roller blinds are one type of window decoration products. They are made by processing curtain fabric with resin, rolling it into a drum shape, and using a pull rope or chain to rise and fall. They are simple and convenient to operate. The roller blinds include two relatively arranged fixing frames, which are used to fix the roller blinds on the wall. The roller blind rod is arranged between the two fixing frames. Because different users have different lighting requirements at different time periods, the roller blinds need to stay in any position. In the patent with application number 202220225842.7, an automatic descending or ascending roller blind is disclosed, which includes a pull rod, which drives one end of the rope (pull rope) to be pulled by the pull rod, so that the user can hold it tightly and prevent the rope from tangling. However, in the above-mentioned patents or some existing pull rod roller blinds, a handle is sleeved on the lower end of the pull rod. During use, the handle is prone to loosening and falling off relative to the pull rod, resulting in a poor user experience. Utility Model Content

[0003] In order to solve at least one aspect of the above problems, the utility model provides a pull-rod roller blind with a stable handle installation, comprising: a pull-rod assembly connected to one end of a pull rope, the pull-rod assembly comprising a pull rod, a handle and a mounting shaft rod, the pull rod is hollow, a plug-in column is provided on the upper part of the mounting shaft rod, the plug-in column is tightly plugged into the inner side of the lower end of the pull rod, the handle is provided with a mounting inner cavity, the lower part of the pull rod and the mounting shaft rod are both placed in the mounting inner cavity, and the outer side wall of the mounting shaft rod is tightly fitted against the inner side wall of the mounting inner cavity; the utility model has a stable handle installation for the pull-rod roller blind, a simple handle assembly structure and a low production cost; the handle and the pull rod are fixed by the mounting shaft rod, and the handle The installation is stable and not prone to falling off, and it is reliable to use; a bolt is connected between the installation shaft rod and the handle, and the installation shaft rod and the handle are further fixed by the bolt, making the assembly more stable; the first convex rib extends along the axial direction of the plug-in column, and is tightly pressed against the inner wall of the pull rod through multiple first convex ribs, making the assembly more stable; a first guide slope is provided on the upper part of the first convex rib, which is convenient for knocking the upper part of the plug-in column into the inner side of the pull rod, reducing the difficulty of assembly; an opening is provided on one side of the limiting cavity, which is convenient for pulling the lower end of the pull rope outward from the opening, and for setting the limiting part after the lower end of the pull rope is pulled out; a wire passing channel connected to the limiting cavity is provided on the installation shaft rod, and the lower end of the pull rope passes through the wire passing channel from top to bottom, and the wire passing channel is in the shape of a trumpet that is wide at the top and narrow at the bottom, which is convenient for threading.

[0004] Optionally, a bolt is connected between the mounting shaft rod and the handle.

[0005] Optionally, a first bolt hole for installing the bolt is provided at the lower portion of the handle, and a second bolt hole for installing the bolt is provided at the lower portion of the mounting shaft rod, and the bolt passes through the first bolt hole and the second bolt hole in sequence from bottom to top.

[0006] Optionally, a first convex rib is provided on the outer side wall of the plug-in column, and the first convex rib is used to abut against the inner side wall of the pull rod for tight fitting.

[0007] Optionally, the first rib extends along the axial direction of the plug-in column, and a plurality of the first ribs are arranged in an annular shape.

[0008] Optionally, a first guide slope is provided on the upper portion of the first rib.

[0009] Optionally, a second convex rib is provided on the outer side wall of the mounting shaft rod, and the second convex rib is used to abut against the inner side wall of the mounting inner cavity for a tight fit.

[0010] Optionally, the second convex rib extends along the axial direction of the mounting shaft rod, a plurality of the second convex ribs are arranged in an annular shape, and a second guide slope is arranged at the lower portion of the second convex rib.

[0011] Optionally, the lower end of the pull rope is connected to the mounting shaft rod, and a limiting cavity for limiting the lower end of the pull rope is provided on the mounting shaft rod. A limiting portion is formed at the lower end of the pull rope, and the limiting portion is placed in the limiting cavity. An opening is provided on one side of the limiting cavity.

[0012] Optionally, a wire passing channel connected to the limiting cavity is provided on the mounting shaft rod, the wire passing channel is in a trumpet shape which is wide at the top and narrow at the bottom, the wire passing channel includes a lower port, the horizontal width of the limiting portion is a first width, the horizontal width of the lower port is a second width, the horizontal width of the pull rope is a third width, and the first width > the second width > the third width.

[0013] Compared with the prior art, the utility model has a pull-rod roller blind with a firmly installed handle, a simple handle assembly structure and low production cost; the handle is fixed to the pull rod by an installation shaft rod, the handle is firmly installed and not prone to falling off, and is reliable to use; a bolt is connected between the installation shaft rod and the handle, and the installation shaft rod and the handle are further fixed by the bolt, making the assembly more stable; the first convex rib extends along the axial direction of the plug-in column, and is tightly pressed against the inner wall of the pull rod through multiple first convex ribs, making the assembly more stable; a first guide slope is provided on the upper part of the first convex rib, which is convenient for knocking the upper part of the plug-in column into the inner side of the pull rod, reducing the difficulty of assembly; an opening is provided on one side of the limiting cavity, which is convenient for pulling the lower end of the pull rope outward from the opening, and the limiting part is provided after the lower end of the pull rope is pulled out; a wire passing channel connected to the limiting cavity is provided on the installation shaft rod, and the lower end of the pull rope passes through the wire passing channel from top to bottom, and the wire passing channel is in the shape of a trumpet with a wide top and a narrow bottom, which is convenient for threading. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a pull-rod roller blind with a handle mounted firmly in accordance with the utility model;

[0015] Figure 2 A cross-sectional view of a pull-rod roller blind with a handle mounted firmly in the utility model;

[0016] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0017] Figure 4 An exploded view of the pull rod type roller blind pull rod assembly part of the utility model with a handle firmly installed;

[0018] Figure 5 This is a schematic diagram of the structure of the shaft rod for installing a pull-rod type roller blind with a handle that is firmly installed in the utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the pull-rod type roller blind installation shaft rod in a top view with a handle firmly installed in the utility model;

[0020] Figure 7 A schematic diagram of the structure of a pull-rod roller blind handle with a stable handle installation according to the utility model;

[0021] The corresponding component names of the various figure marks in the figure are: 1 is a pull rod, 2 is a handle, 201 is an installation inner cavity, 202 is a first bolt hole, 3 is an installation shaft rod, 301 is a second bolt hole, 31 is a plug-in column, 311 is a first convex rib, 312 is a first guide slope, 313 is an annular guide slope, 32 is a second convex rib, 321 is a second guide slope, 33 is a limiting cavity, 34 is an opening, 35 is a wire passing channel, 351 is a lower port, 4 is a pull rope, 401 is a limiting part, 5 is a bolt, L is a first width, M is a second width, and N is a third width. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.

[0024] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0025] See also Figure 1-Figure 7 The embodiment of the utility model provides a pull-rod roller blind with a stable handle installation, including: a pull-rod assembly connected to one end of a pull cord 4 in the roller blind product, the pull-rod assembly drives the pull cord 4 to control the lifting of the roller blind, which is a prior art and will not be described in detail here; the pull-rod assembly includes a pull rod 1, a handle 2 and an installation shaft rod 3, the installation shaft rod 3 is made of plastic, the pull rod 1 is hollow, a part of the pull cord 4 is placed inside the pull rod 1 and connected to the installation shaft rod 3, so that the pull cord 4 can be pulled when the pull-rod assembly is pulled down; the installation shaft rod 3 A plug-in column 31 is provided on the upper part, and the plug-in column 31 is tightly inserted into the inner side of the lower end of the pull rod 1. The handle 2 is provided with an installation cavity 201. The lower part of the pull rod 1 and the installation shaft rod 3 are placed in the installation cavity 201, and the outer wall of the installation shaft rod 3 is tightly fitted against the inner wall of the installation cavity 201. The handle of the utility model has a firmly installed pull rod type roller shutter, a simple handle assembly structure and a low production cost. The handle and the pull rod are fixed by the installation shaft rod, the handle is firmly installed and is not easy to fall off, and it is reliable to use.

[0026] See also Figure 2-Figure 6 , a bolt 5 is connected between the mounting shaft rod 3 and the handle 2, and the mounting shaft rod 3 and the handle 2 are further fixed by the bolt 5, so that the assembly is more stable; a first bolt hole 202 for mounting the bolt 5 is provided at the lower part of the handle 2, and a second bolt hole 301 for mounting the bolt 5 is provided at the lower part of the mounting shaft rod 3, and the bolt 5 passes through the first bolt hole 202 and the second bolt hole 301 in sequence from bottom to top, and an internal thread corresponding to the bolt 5 is formed on the inner wall of the second bolt hole 301, so that the bolt is easy to assemble, and the production and assembly costs are low, and the axis of the bolt 5 is perpendicular to the horizontal plane; a first convex rib 311 is provided on the outer wall of the plug-in column 31, and the first The convex rib 311 is used to abut against the inner wall of the pull rod 1 for a tight fit, and the plug-in column 31 is knocked into the inner side of the pull rod 1. At this time, the first convex rib 311 is tightly against the inner wall of the pull rod 1; the first convex rib 311 extends along the axial direction of the plug-in column 31, and multiple first convex ribs 311 are arranged in a ring shape at equal intervals. The multiple first convex ribs 311 are tightly against the inner wall of the pull rod 1, and the assembly is more stable; the upper part of the first convex rib 311 is provided with a first guide bevel 312, which is convenient for the upper part of the plug-in column 31 to be knocked into the inner side of the pull rod 1, reducing the difficulty of assembly, and the upper part of the plug-in column 31 is also provided with an annular guide bevel 313, which is convenient for guiding the upper end of the plug-in column 31 into the inner side of the pull rod 1.

[0027] See also Figure 2-Figure 6A second convex rib 32 is provided on the outer wall of the mounting shaft rod 3, and the second convex rib 32 is used to abut against the inner wall of the mounting inner cavity 201 for tight fitting; the second convex rib 32 extends along the axial direction of the mounting shaft rod 3, and a plurality of second convex ribs 32 are arranged in an annular shape, and a second guide inclined surface 321 is provided at the lower part of the second convex rib 32, which is convenient for the handle 2 to be introduced into the mounting shaft rod 3 for tight fitting; the lower end of the pull rope 4 is connected to the mounting shaft rod 3, and a limiting cavity 33 for limiting the lower end of the pull rope 4 is provided on the mounting shaft rod 3, and a limiting portion 401 is formed at the lower end of the pull rope 4, and the limiting portion 401 is placed in the limiting cavity 33, and the limiting portion 401 can prevent the lower end of the pull rope 4 from slipping out of the limiting cavity 33 upward, and the limiting portion 401 can be a knot or other component on the pull rope 4; an opening 34 is provided on one side of the limiting cavity 33, which is convenient for pulling the lower end of the pull rope 4 outward from the opening 34, so that the limiting portion 401 is set after the lower end of the pull rope 4 is pulled out.

[0028] See also Figure 3-Figure 5 A wire-passing channel 35 connected to the limiting cavity 33 is provided on the mounting shaft rod 3, and the lower end of the pull rope 4 passes through the wire-passing channel 35 from top to bottom. The wire-passing channel 35 is in the shape of a trumpet which is wide at the top and narrow at the bottom, so as to facilitate threading; the wire-passing channel 35 includes a lower port 351, the horizontal width of the limiting portion 401 is a first width L, the horizontal width of the lower port 351 is a second width M, and the horizontal width of the pull rope 4 is a third width N. The first width L>the second width M>the third width N, so that the limiting portion 401 can be limited in the limiting cavity 33, so that the pull rope 4 can be pulled when the pull rod assembly is pulled down.

[0029] The utility model discloses a pull-rod type roller blind with a handle that is stably installed, a handle assembly structure that is simple, and a production cost that is low; the handle and the pull rod are fixed by an installation shaft rod, the handle is stably installed and is not prone to falling off, and is reliable to use; a bolt is connected between the installation shaft rod and the handle, and the installation shaft rod and the handle are further fixed by the bolt, and the assembly is more stable; the first convex rib extends along the axial direction of the plug-in column, and is tightly pressed against the inner wall of the pull rod through a plurality of first convex ribs, and the assembly is more stable; a first guide inclined surface is provided on the upper part of the first convex rib, which is convenient for knocking the upper part of the plug-in column into the inner side of the pull rod, reducing the difficulty of assembly; an opening is provided on one side of the limiting cavity, which is convenient for pulling the lower end of the pull rope outward from the opening, and is convenient for setting the limiting part after the lower end of the pull rope is pulled out; a wire passing channel connected to the limiting cavity is provided on the installation shaft rod, and the lower end of the pull rope passes through the wire passing channel from top to bottom, and the wire passing channel is in the shape of a trumpet that is wide at the top and narrow at the bottom, which is convenient for threading.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pull-rod roller blind with a firmly mounted handle, comprising: A pull rod assembly connected to one end of a pull rope (4), characterized in that the pull rod assembly comprises a pull rod (1), a handle (2) and an installation shaft rod (3), the pull rod (1) is hollow, and a plug-in column (31) is provided on the upper part of the installation shaft rod (3), and the plug-in column (31) is tightly plugged into the inner side of the lower end of the pull rod (1), and the handle (2) is provided with an installation inner cavity (201), and the lower part of the pull rod (1) and the installation shaft rod (3) are both placed in the installation inner cavity (201), and the outer wall of the installation shaft rod (3) is tightly fitted against the inner wall of the installation inner cavity (201).

2. The pull rod type roller blind with a handle mounted firmly as claimed in claim 1, characterized in that: A bolt (5) is connected between the mounting shaft rod (3) and the handle (2).

3. The pull rod type roller blind with a handle mounted firmly as claimed in claim 2, characterized in that: The handle (2) is provided with a first bolt hole (202) at the bottom for mounting the bolt (5), and the mounting shaft rod (3) is provided with a second bolt hole (301) at the bottom for mounting the bolt (5), and the bolt (5) passes through the first bolt hole (202) and the second bolt hole (301) in sequence from bottom to top.

4. The pull-rod roller blind with a handle mounted firmly as claimed in claim 1, characterized in that: A first convex rib (311) is provided on the outer side wall of the plug-in column (31), and the first convex rib (311) is used to abut against the inner side wall of the pull rod (1) for tight fitting.

5. The pull rod type roller blind with a handle mounted firmly as claimed in claim 4, characterized in that: The first convex rib (311) extends along the axial direction of the plug-in column (31), and a plurality of the first convex ribs (311) are arranged in an annular shape.

6. The pull-rod roller blind with a handle mounted firmly as claimed in claim 4, characterized in that: A first inclined guide surface (312) is provided on the upper portion of the first convex rib (311).

7. The pull-rod roller blind with a handle mounted firmly as claimed in claim 1, characterized in that: A second convex rib (32) is provided on the outer side wall of the installation shaft rod (3), and the second convex rib (32) is used to abut against the inner side wall of the installation inner cavity (201) for tight fitting.

8. The pull-rod roller blind with a handle mounted firmly as claimed in claim 7, characterized in that: The second convex rib (32) extends along the axial direction of the mounting shaft rod (3), a plurality of the second convex ribs (32) are arranged in an annular shape, and a second guide inclined surface (321) is arranged at the lower part of the second convex rib (32).

9. The pull-rod roller blind with a handle mounted firmly according to any one of claims 1 to 8, characterized in that: The lower end of the pull rope (4) is connected to the mounting shaft rod (3), and a limiting cavity (33) for limiting the lower end of the pull rope (4) is provided on the mounting shaft rod (3). A limiting portion (401) is formed at the lower end of the pull rope (4), and the limiting portion (401) is placed in the limiting cavity (33). An opening (34) is provided on one side of the limiting cavity (33).

10. The pull-rod roller blind with a handle mounted firmly as claimed in claim 9, characterized in that: The mounting shaft rod (3) is provided with a wire passage (35) connected to the limiting cavity (33), the wire passage (35) is in the shape of a trumpet which is wide at the top and narrow at the bottom, the wire passage (35) comprises a lower port (351), the horizontal width of the limiting portion (401) is a first width (L), the horizontal width of the lower port (351) is a second width (M), the horizontal width of the pull rope (4) is a third width (N), and the first width (L)>the second width (M)>the third width (N).

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