Retractable curtain rod

Abstract

The present invention provides a telescopic curtain hanging rod, comprising a hanging rod body and a telescopic mechanism arranged at at least one end of the hanging rod body; the telescopic mechanism comprises a first telescopic connection part connected to the hanging rod body, and a second telescopic connection part slidably connected to the first telescopic connection part; the first telescopic connection part and the second telescopic connection part are coaxially arranged. With the above structure, the length of the hanging rod can be adjusted by sliding the first telescopic connection part and the second telescopic connection part that are slidably connected to each other, thereby reducing the difficulty of dimensional measurement before installation. In addition, since the width of the curtain itself is adjustable, it is conducive to realizing standardized mass production, expanding the production scale, and reducing production costs.

Description

Technical Field

[0001] The invention relates to a curtain installation device, in particular to a hanging rod for installing the curtain. Background Art

[0002] At present, hanging curtains usually include curtain fabrics and hanging rods. The production methods of hanging curtains such as window curtains, door curtains, shower curtains, etc. are basically customized. First, the size of the curtain to be installed must be measured, and then customized production is carried out according to the specific measured size, including the length of the hanging rod and the width of the curtain fabric. In this process, the measurement size is often inaccurate due to various reasons, especially the length of the hanging rod does not match the width of the installation, resulting in the final product not being installed, or the gap is too large, resulting in the scrapping of the finished product, causing a huge waste of social resources. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a curtain hanging rod whose length can be adjusted according to the width of the location to be installed.

[0004] The technical solution of the present invention is to provide a retractable curtain hanging rod, including a hanging rod body and a retractable mechanism arranged at at least one end of the hanging rod body; the retractable mechanism includes a first retractable connection part connected to the hanging rod body, and a second retractable connection part slidingly connected to the first retractable connection part; the first retractable connection part and the second retractable connection part are coaxially arranged.

[0005] By adopting the above structure, the length of the hanging rod can be adjusted by sliding the first telescopic connection part and the second telescopic connection part which are slidably connected to each other. Therefore, during installation, the length of the hanging rod can be adjusted to a certain extent according to the size of the installation space, thereby reducing the difficulty of size measurement before installation. In addition, as the size of the installation location is gradually standardized, the width of the curtain itself is adjustable, and batch standard production can be achieved, which greatly reduces the production cost and sales price. It is a hanging rod design with a simple structure, energy saving and environmental protection.

[0006] Furthermore, the first telescopic connection portion and the second telescopic connection portion have the same outer diameter.

[0007] Furthermore, a connecting piece for connecting to other mounting pieces is provided at one end of the second telescopic connecting portion away from the hanging rod body.

[0008] Furthermore, it also includes a locking mechanism for locking the telescopic state of the telescopic mechanism; the locking mechanism is coaxially arranged with the first telescopic connection part and the second telescopic connection part, and the locking mechanism penetrates into the first telescopic connection part and the second telescopic connection part and can rotate around the axis and move linearly in the axial direction.

[0009] Furthermore, the locking mechanism includes a columnar body, a locking groove is provided on the outer surface of the columnar body, a first locking block matching the locking groove is provided on the inner surface of the first telescopic connection part, and a second locking block matching the locking groove is provided on the inner surface of the second telescopic connection part.

[0010] Preferably, there are multiple locking grooves forming a locking groove row extending in the axial direction, and at least one locking groove row is provided.

[0011] Preferably, at least two rows of lock grooves are provided, and the at least two rows of lock grooves are evenly distributed along the circumference of the columnar body of the locking mechanism.

[0012] Preferably, based on the rotation direction of the columnar body during the locking process, the side of the locking groove that is first close to the locking block is an open side, and the side that is second close to the locking block is a closed side.

[0013] Preferably, the first locking block is arranged on the inner surface of the first telescopic connection portion away from the hanging rod body, and the second locking block is arranged on the inner surface of the second telescopic connection portion away from the hanging rod body.

[0014] Furthermore, an end of the locking mechanism away from the hanging rod body is connected to an end cover, and the rotation of the end cover can drive the locking mechanism to rotate.

[0015] Preferably, the side surface of the end cover is a rough surface.

[0016] Preferably, it also includes a connecting piece arranged on the end surface of the end cover away from the hanging rod body.

[0017] More preferably, one end of the connecting piece passes through the end cover and then into the interior of the locking mechanism and is fixed.

[0018] Furthermore, at least two sliding members are distributed along the circumferential direction on the outer surface of the first telescopic connection part, and the sliding members are strip-shaped sliding members whose lengths extend along the axial direction. The outer surface of the second telescopic connection part is provided with sliding grooves matching with the sliding members.

[0019] Furthermore, the sliding member includes a first sliding member and a second sliding member, and the first sliding member and the second sliding member are distributed at intervals; wherein the second sliding member is directly connected to the outer side surface of the first telescopic connection part, and the end of the first sliding member close to the hanging rod body is connected to the first telescopic connection part and is suspended from the outer side surface of the first telescopic connection part.

[0020] Correspondingly, the sliding groove includes a first sliding groove and a second sliding groove, and the first sliding groove and the second sliding groove are distributed at intervals; wherein the cross-section of the first sliding groove is "C"-shaped, and there is a gap between adjacent first sliding grooves to form a second sliding groove, the first sliding groove cooperates with the first sliding member, and the second sliding groove cooperates with the second sliding member.

[0021] Preferably, the two sides of the "C" shape of the first sliding groove are curled edges, which is different from the two sides of the "concave" shape which are straight edges, and the distance between the ends of the two curled edges is slightly larger than the distance at the widest part of the first sliding member.

[0022] Furthermore, the cross section of the sliding member is an isosceles trapezoid, and the short side of the isosceles trapezoid is close to the outer side surface of the first telescopic connection portion, and the long side is far away from the outer side surface of the first telescopic connection portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The diagram is a schematic diagram of the retracted state of the retractable curtain hanging rod of the present invention.

[0024] Figure 2a The figure is a schematic diagram of the assembly structure of the retractable curtain hanging rod of the present invention.

[0025] Figure 2b The figure is a schematic diagram of the assembly structure of another structure of the retractable curtain hanging rod of the present invention.

[0026] Figure 3 The figure is a schematic diagram of the internal structure of the retractable curtain hanging rod of the present invention.

[0027] Figure 4 The figure is a schematic diagram of the internal structure of the retractable curtain hanging rod of the present invention from another perspective.

[0028] Figure 5 for Figure 2a or Figure 2b Schematic diagram of the structure of the first telescopic connection part.

[0029] Figure 6 for Figure 2a or Figure 2b Schematic diagram of the structure of the second telescopic connection part.

[0030] Figure 7 for Figure 2b Schematic diagram of the locking mechanism.

[0031] Figure 8 It is a schematic diagram of the curtain installation groove of the retractable curtain hanging rod of the present invention.

[0032] Fig. 9 The figure is a schematic diagram of the extended state of the retractable curtain hanging rod of the present invention. DETAILED DESCRIPTION

[0033] The present invention will be further described below in conjunction with specific implementation modes.

[0034] In the description of the present invention, it is to 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 to indicate orientations or positional relationships, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] 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 invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] 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.

[0037] In the present invention, 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.

[0038] The present invention provides a retractable curtain hanging rod, such as Figures 1 to 8 As shown, Figure 1 Schematic diagram of the retractable curtain hanging rod in the retracted state. Figure 2a The figure is a schematic diagram of the assembly structure of the retractable curtain hanging rod. Figure 2b It is a schematic diagram of the assembly structure of another structure of the retractable curtain hanging rod. Figure 3 This is a schematic diagram of the internal structure of the retractable curtain hanging rod. Figure 4This is a schematic diagram of the internal structure of the retractable curtain hanging rod from another perspective. Figure 5 for Figure 2a or Figure 2b The structural diagram of the first telescopic connection part 2 is shown in FIG. Figure 6 for Figure 2a or Figure 2b The structural diagram of the second telescopic connection part 3, Figure 7 for Figure 2b The structural diagram of the locking mechanism 4 is shown in FIG. Figure 8 Schematic diagram of the curtain installation groove of the retractable curtain hanging rod of the present invention, Fig. 9 The diagram is a schematic diagram of the extended state of the retractable curtain hanging rod of the present invention.

[0039] like Figure 2a As shown, the retractable curtain hanger rod of the present invention includes a hanger rod body 1 (only a partial length of the hanger rod body 1 is shown in the figure) and a telescopic mechanism arranged at at least one end of the hanger rod body 1; the telescopic mechanism includes a first telescopic connection part 2 connected to the hanger rod body 1, and a second telescopic connection part 3 slidingly connected to the first telescopic connection part 2; the first telescopic connection part 2 and the second telescopic connection part 3 are coaxially arranged.

[0040] In specific use, the length of the hanging rod can be adjusted by using the telescopic mechanism set at at least one end of the hanging rod body and the sliding of the first telescopic connection part 2 and the second telescopic connection part 3 that are slidably connected to each other. Under the premise of sliding connection, when the first telescopic connection part 2 and the second telescopic connection part 3 are away from each other, the overall length of the hanging rod is extended, and when the first telescopic connection part 2 and the second telescopic connection part 3 are close to each other, the overall length of the hanging rod is shortened. Therefore, during installation, the length of the hanging rod can be adjusted to a certain extent according to the size of the installation space, which can greatly reduce the dimensional accuracy requirements of the measurement and facilitate construction and installation. The first telescopic connection part and the second telescopic connection part can maintain the stability of the structural matching in the extended or shortened state by tight fitting. During the use of the hanging curtain, the force of the curtain fabric is perpendicular to the hanging rod, but not parallel to the hanging rod. Therefore, during actual use, the telescopic connection part of the telescopic mechanism will not be offset and can remain stable. At the same time, in some cases, the external mounting frame can also play a limiting role, which can further prevent the telescopic connection part of the telescopic mechanism from offsetting.

[0041] As a further improved embodiment, the outer diameters of the first telescopic connection part 2 and the second telescopic connection part 3 are the same. Under the premise of ensuring that the telescopic mechanism is telescopic, the outer diameter of the entire hanging rod (including the hanging rod main body and the telescopic part) can be kept consistent. This has the obvious advantage of keeping the outer diameter of the hanging rod consistent when the telescopic curtain hanging rod of the present invention is used as a rolling curtain hanging rod, which is conducive to the smooth and stable rolling of the curtain.

[0042] As a further improved embodiment, see Figure 2aA connecting piece 5 for connecting with other mounting parts is provided at one end of the second telescopic connecting part 3 away from the hanging rod body 1. The connecting piece 5 can be connected with, for example, a curtain mounting frame.

[0043] As a further improved embodiment, see Figure 2b , and also includes a locking mechanism 4 for locking the telescopic state of the telescopic mechanism. The locking mechanism 4 is coaxially arranged with the first telescopic connection part 2 and the second telescopic connection part 3, and penetrates into the first telescopic connection part 2 and the second telescopic connection part 3, and can rotate around the axis and move linearly in the axial direction. The sliding state of the adjusted first telescopic connection part 2 and the second telescopic connection part 3 is locked by the locking mechanism 4, that is, the length of the hanging rod is locked, and the length adjustment of the hanging rod is completed. In addition, the locking mechanism 4 can also be unlocked for easy disassembly.

[0044] As a further improved embodiment, see Figure 7 The locking mechanism 4 comprises a columnar body 43, a locking groove 41 is arranged on the outer surface of the columnar body 43, a first locking block 21 matching with the locking groove 41 is arranged on the inner surface of the first telescopic connection part 2, and a second locking block 31 matching with the locking groove 41 is arranged on the inner surface of the second telescopic connection part 3. During the locking process, the columnar locking mechanism 4 rotates so that the first locking block 21 and the second locking block 31 are respectively inserted into the locking groove 41, and the locking is completed by the fixing effect of the locking groove 41 on the locking block. When unlocking is required, the columnar locking mechanism 4 can be rotated in the opposite direction, and the locking block is rotated out of the locking groove 41 to complete the unlocking.

[0045] As a further improved embodiment, see Figure 7 There are multiple locking grooves 41 and they form a locking groove row 41' extending in the axial direction, and the locking groove row 41' is at least one row. When the first telescopic connection part 2 and the second telescopic connection part 3 are extended away from each other, during the locking process, the locking groove 41 close to the hanging rod body 1 is used to insert the first locking block 21, and the locking groove 41 away from the hanging rod body 1 is used to insert the second locking block 31. The locking groove row 41' can better ensure that the state of the telescopic mechanism is locked after the length of the axial direction is changed.

[0046] For a more preferred embodiment, see Figure 7 There are at least two lock groove rows 41', and the at least two lock groove rows 41' are evenly distributed along the circumference of the columnar body 43 of the locking mechanism 4. The evenly distributed arrangement of multiple lock groove rows 41' in the circumferential direction can ensure the stability of the telescopic mechanism after locking, so as to prevent the locking state of the first telescopic connection part 2 and the second telescopic connection part 3 from being damaged due to external factors such as vibration.

[0047] As a further improved embodiment, see Figure 7In order to facilitate the insertion of the locking block into the locking slot during the rotation process, the side of the locking slot 41 that is first close to the locking block during the locking process is an open side. At the same time, to prevent the locking block from slipping out of the locking slot 41 due to excessive rotation, the side that is secondarily close to the locking block during the locking process is a closed side, which forms a barrier for the locking block and ensures that the locking block can be positioned in the locking slot after entering the locking slot, that is, the shape of the locking slot is similar to "Π".

[0048] As a further improved embodiment, see Figures 5 to 6 The first locking block 21 is arranged on the inner surface of the first telescopic connection part 2 away from the hanging rod body 1, and the second locking block 31 is arranged on the inner surface of the second telescopic connection part 3 away from the hanging rod body. The arrangement of the locking block at this position is conducive to maximizing the use of the length of the telescopic mechanism columnar body 43, and is conducive to locking and fixing the structure of the first telescopic connection part 2 and the second telescopic connection part 3 after extension or shortening, thereby ensuring that the structure is relatively stable.

[0049] As a further improved embodiment, see Figure 7 In order to prevent the locking mechanism 4 from sliding into the first telescopic connection part 2 and the second telescopic connection part 3 during use, an end cover 42 is connected to the end of the locking mechanism 4 away from the hanging rod body 1. The rotation of the end cover 42 can drive the locking mechanism 4 to rotate, and the end cover 42 can ensure that the end where the end cover 42 is set remains outside the first telescopic connection part 2 and the second telescopic connection part 3; in addition, the side surface of the end cover 42 is a rough surface, which increases the friction when grasping, making it easy to rotate the end cover 42 during installation.

[0050] As a further improved embodiment, see Figure 1 , 2b , 4 and 7, and also includes a connector 5 arranged on the end surface of the end cap 42 away from the hanging rod body, one end of the connector 5 passes through the end cap 42 and then penetrates into the locking mechanism 4 and is fixed. The connector 5 is used to connect the hanging rod with other mounting parts, so as to facilitate the installation of the hanging rod at the place to be constructed.

[0051] As a further improved embodiment, see Figures 5 to 6 At least two sliding members are distributed along the circumferential direction on the outer surface of the first telescopic connection part 2. The sliding members are strip-shaped sliding members whose length extends along the axial direction. The outer surface of the second telescopic connection part 3 is provided with a sliding groove matched with the sliding member. The sliding member slides in the sliding groove to realize the sliding connection between the first telescopic connection part 2 and the second telescopic connection part 3, thereby realizing the length extension and shortening of the hanging rod telescopic mechanism; when the sliding member and the sliding groove cooperate, the outer surface along the circumference is basically kept flat, which can ensure that the overall outer diameter of the hanging rod does not change during the extension and shortening process.

[0052] As a further improved embodiment, see Figure 5The sliding member includes a first sliding member 22 and a second sliding member 23, and the first sliding member 22 and the second sliding member 23 are distributed at intervals; wherein the second sliding member 23 is connected to the outer side surface of the first telescopic connection part 2, and the end of the first sliding member 22 close to the hanging rod body 1 is connected to the first telescopic connection part 2 and is suspended from the outer side surface of the first telescopic connection part 2 (that is, the bottom surface of the first sliding member 22 does not contact the surface of the first telescopic connection part 2).

[0053] To cooperate with the first sliding member 22 and the second sliding member 23, refer to Figure 6 The sliding groove includes a first sliding groove 32 and a second sliding groove 33, and the first sliding groove 32 and the second sliding groove 33 are arranged at intervals; wherein the cross section of the first sliding groove 32 is in a "C" shape, and there is a gap between adjacent first sliding grooves 32 to form a second sliding groove 33, the first sliding groove 32 cooperates with the first sliding member 22, and the second sliding groove 33 cooperates with the second sliding member 23. And preferably, the two sides of the "C" of the first sliding groove 32 are curled edges, which are different from the two sides of the "concave" shape which are straight edges, and the distance between the ends of the two curled edges is slightly larger than the distance at the widest part of the first sliding member 22, that is, the end of the curled edge forms a clearance fit with the widest part of the first sliding member 22, which not only ensures the limiting guidance of the first sliding groove 32 to the first sliding member 22, but also ensures the smoothness of sliding. The first sliding member 22 is set in a manner in which the bottom surface is separated from the outer surface of the first telescopic connecting part 2, so that the cooperation between the sliding member and the sliding groove is more stable. At the same time, the second sliding groove 33 can contact the two side walls of the second sliding member 23 through the two side walls, and the bottom surface of the first sliding groove 32 can contact the bottom surface of the first sliding member 22, thereby reducing friction, increasing the smoothness of sliding, and avoiding the large friction caused by the ordinary sliding groove sliding through full side contact or side and bottom contact.

[0054] As a further improved embodiment, the cross section of the sliding member is an isosceles trapezoid, and the short side of the isosceles trapezoid is close to the outer side of the first telescopic connection part 2, and the long side is away from the outer side of the first telescopic connection part 2. The sliding member with an isosceles trapezoidal cross section is conveniently distributed on the circumference of the outer surface of the first telescopic connection part 2.

[0055] As a further improved embodiment, see Figure 3 , 8 A curtain installation groove 34 extending axially is also provided on the outer side surface of the hanging rod, and one end of the curtain is plugged or fixed in the curtain installation groove 34 through a mounting member (such as a plug-in plate, a hook, etc.).

[0056] The following combination Figure 1 , 3 , 4, 9, the working process of the hanging rod of the present invention is described:

[0057] like Figure 1The telescopic mechanism is shown in the fully retracted state. Figures 3 to 4 , Figures 3 to 4 This is a schematic diagram of the internal structure when the telescopic mechanism is fully retracted and locked. At this time, the locking blocks (including the first locking block 21 and the second locking block 31) are inserted into the locking groove 41, and the first telescopic connection part 2 and the second telescopic connection part 3 are fixed and cannot slide relative to each other. If the length of the hanging rod needs to be adjusted, the locking mechanism 4 is rotated in the direction opposite to the locking direction so that the locking block is disengaged from the locking groove 41. Even if the locking mechanism 4 is unlocked, the first telescopic connection part 2 and the second telescopic connection part 3 can slide relative to each other, and the length of the hanging rod is extended. After the rod is extended to the required length, the locking mechanism 4 is rotated in the locking direction so that the locking block is inserted into the locking groove 41, and the extended length is locked. For a schematic diagram of the structure in the extended state, refer to Fig. 9 When the length of the hanging rod needs to be disassembled or shortened, the locking mechanism 4 is first unlocked according to the above process, and then the first telescopic connection part 2 and the second telescopic connection part 3 are slid to shorten the length, and finally the locking mechanism 4 is locked. For the schematic diagram of the shortened state, refer to Figure 1 After the telescopic mechanism of the hanging rod has completed the length adjustment, other mounting parts connected to the connecting member 5 need to be installed at the end. These mounting parts objectively have a clamping effect on the telescopic mechanism, so the structure and state of the telescopic mechanism can be further guaranteed to be stable. The telescopic curtain hanging rod of the present invention can be applied to various curtains such as curtains, door curtains, and shower curtains, and can be a hanging rod with holes or without holes.

[0058] 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 fabric devices.

[0059] The above is only a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, improvements and modifications can be made without departing from the core technology of the present invention, and these improvements and modifications should also fall within the scope of patent protection of the present invention. Any changes within the meaning and scope equivalent to the claims of the present invention should be considered to be included in the scope of the claims.

Claims

1. The retractable curtain hanging rod is characterized by: It comprises a hanging rod body and a telescopic mechanism arranged at at least one end of the hanging rod body; the telescopic mechanism comprises a first telescopic connection part connected to the hanging rod body and a second telescopic connection part slidably connected to the first telescopic connection part; the first telescopic connection part and the second telescopic connection part are coaxially arranged; The first telescopic connection portion and the second telescopic connection portion have the same outer diameter; It also includes a locking mechanism for locking the telescopic state of the telescopic mechanism; the first telescopic connection part, the second telescopic connection part and the locking mechanism are coaxially arranged, and the locking mechanism penetrates into the first telescopic connection part and the second telescopic connection part and can rotate around the axis and move linearly in the axial direction; A connecting piece is disposed at one end of the second telescopic connecting portion away from the hanging rod body.

2. The retractable curtain hanging rod according to claim 1, characterized in that: The locking mechanism comprises a columnar body, a locking groove is arranged on the outer surface of the columnar body, a first locking block cooperating with the locking groove is arranged on the inner surface of the first telescopic connection part, and a second locking block cooperating with the locking groove is arranged on the inner surface of the second telescopic connection part.

3. The retractable curtain hanging rod according to claim 2, characterized in that: The locking grooves are multiple and form a locking groove row extending along the axial direction, and the locking groove row is provided in at least one row.

4. The retractable curtain hanging rod according to claim 3, characterized in that: The locking groove rows are arranged in at least two rows, and the at least two locking groove rows are evenly distributed along the circumference of the columnar body.

5. The retractable curtain hanging rod according to claim 2, characterized in that: According to the rotation direction of the columnar body during the locking process, the side of the locking groove that is first close to the locking block is an open side, and the side that is second close to the locking block is a closed side.

6. The retractable curtain hanging rod according to claim 2, characterized in that: The first locking block is arranged on an inner surface of the first telescopic connection portion away from the hanging rod body, and the second locking block is arranged on an inner surface of the second telescopic connection portion away from the hanging rod body.

7. The retractable curtain hanging rod according to claim 1, characterized in that: An end of the locking mechanism away from the hanging rod body is connected to an end cover, and the rotation of the end cover can drive the locking mechanism to rotate.

8. The retractable curtain hanging rod according to claim 7, characterized in that: The side surface of the end cover is a rough surface.

9. The retractable curtain hanging rod according to claim 7, characterized in that: It also includes a connecting piece arranged on the end surface of the end cover away from the hanging rod body.

10. The retractable curtain hanging rod according to claim 9, characterized in that: One end of the connecting piece passes through the end cover and then into the interior of the locking mechanism and is fixed.

11. The retractable curtain hanging rod according to claim 1, characterized in that: At least two sliding members are distributed along the circumferential direction on the outer surface of the first telescopic connection part. The sliding members are strip-shaped sliding members whose lengths extend along the axial direction. The outer surface of the second telescopic connection part is provided with sliding grooves matching with the sliding members.

12. The retractable curtain hanging rod according to claim 11, characterized in that: The sliding member includes a first sliding member and a second sliding member, and the first sliding member and the second sliding member are distributed at an interval; wherein the second sliding member is directly connected to the outer side surface of the first telescopic connection part, and one end of the first sliding member close to the hanging rod body is connected to the first telescopic connection part and is suspended from the outer side surface of the first telescopic connection part.

13. The retractable curtain hanging rod according to claim 12, characterized in that: The sliding groove includes a first sliding groove and a second sliding groove, and the first sliding groove and the second sliding groove are spaced apart from each other; wherein the cross-section of the first sliding groove is in a "C" shape, and there is a gap between adjacent first sliding grooves to form the second sliding groove, the first sliding groove cooperates with the first sliding member, and the second sliding groove cooperates with the second sliding member.

14. The retractable curtain hanging rod according to claim 13, characterized in that: The two sides of the "C" shape of the first sliding groove are curled edges, and the distance between the ends of the two curled edges is slightly larger than the distance at the widest part of the first sliding member.

15. The retractable curtain hanging rod according to claim 11, characterized in that: The cross section of the sliding member is an isosceles trapezoid, wherein the short side of the isosceles trapezoid is close to the outer side surface of the first telescopic connection portion, and the long side is far away from the outer side surface of the first telescopic connection portion.

16. The retractable curtain hanging rod according to claim 1, characterized in that: The outer side surface of the telescopic curtain hanging rod is also provided with a curtain installation groove extending along the axial direction.

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