Long rod assembly and curtain support

Abstract

The utility model discloses a long rod assembly and a curtain support, each of which comprises a plurality of unit pipes arranged in sequence, and a first movable part arranged in the unit pipe at the initial end; one end of the rope is connected to the first movable part, and the other end of the rope sequentially penetrates through the interiors of all the unit pipes; the elastic assembly is arranged on the unit pipe located at the tail end and connected with the end, away from the first movable part, of the rope, and the elastic assembly has a first state for tensioning the rope and a second state for loosening the rope; when the long rod assembly and the curtain support are used, the elastic assembly drives the first movable part to get close to tighten the rope, and all the unit pipes can abut tightly in sequence and are arranged in a straight line for use. And when not in use, the rope is loosened by the elastic assembly, and all the unit pipes can be separated from one another and folded to form a mutually parallel state, so that the storage volume is reduced, and rapid folding storage and rapid unfolding use are facilitated.

Description

Technical Field

[0001] The utility model relates to a long rod assembly and a curtain bracket. Background Art

[0002] Generally, a projector needs to be used in cooperation with a projection curtain to obtain better projection clarity. In order to fix the projection curtain, a corresponding curtain bracket is generally equipped. The traditional curtain bracket is a fixed frame, and the projection curtain is connected to the frame by ropes or hooks. The frame is surrounded by an upper cross bar, a lower cross bar, a left side bar and a right side bar. The curtain bracket occupies a large space when not in use. In the related art, the upper cross bar, the lower cross bar, the left side bar and the right side bar are usually set in a split connection mode, and the frame can be disassembled into four rods. However, the length of a single rod is still relatively long. Therefore, some products set the rod to be composed of a plurality of unit rods spliced together. When splicing, each unit rod needs to be assembled one by one, which is not conducive to the user to quickly unfold and store the frame and affects the use convenience.

[0003] In addition, the connection between the traditional projection curtain and the frame bracket is also likely to cause the projection curtain to become loose and produce wrinkles. When image text and other information are projected on a projection curtain with insufficient tension, deformation is likely to occur, affecting the projection effect. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, one of the purposes of the utility model is to provide a long rod assembly that is convenient for quick folding, storage, quick unfolding and use; the second purpose is to provide a curtain bracket adopting the above long rod assembly.

[0005] A long rod assembly according to an embodiment of the first aspect of the utility model includes: a plurality of unit tubes arranged in sequence, a first movable member is provided in the unit tube at the starting end; a rope, one end of the rope is connected to the first movable member, and the other end of the rope sequentially passes through the interiors of all the unit tubes; a tensioning assembly is provided on the unit tube at the end, and is connected to the end of the rope away from the first movable member. The tensioning assembly has a first state of tensioning the rope and a second state of relaxing the rope; when the tensioning assembly is in the first state, the first movable member moves close to the tensioning assembly, so that all the unit tubes are sequentially abutted and arranged in a straight line; when the tensioning assembly is in the second state, the rope between the tensioning assembly and the first movable member extends, so that all the unit tubes can be folded to form a parallel state.

[0006] A long rod assembly according to an embodiment of the utility model has at least the following beneficial effects:

[0007] When the long rod assembly of the above structure is in use, the elastic assembly drives the first movable part to approach and tighten the rope, so that all the unit tubes can be pressed together in sequence and arranged in a straight line for use; when the long rod assembly is not in use, the elastic assembly loosens the rope, so that all the unit tubes can be separated from each other and folded to form a state parallel to each other, thereby reducing the storage volume, which is conducive to quick folding and storage, and quick unfolding and use.

[0008] In some embodiments of the utility model, the unit tube located at the starting end is provided with a limit piece corresponding to the first movable piece, the tensioning assembly includes a second movable piece movably arranged in the unit tube at the end, the end of the rope away from the first movable piece is connected to the second movable piece, the end of the unit tube located at the end is rotatably provided with an adjusting screw, the head of the adjusting screw is exposed at the end of the unit tube, and the second movable piece is fixed with a nut piece matching the adjusting screw.

[0009] In some embodiments of the utility model, a right-angle connector is provided at the end of the unit tube at the end, the adjusting screw is movably passed through one end of the right-angle connector, and the other end of the right-angle connector is used to plug and cooperate with the unit tube at the starting end of another long rod assembly.

[0010] In some embodiments of the utility model, two adjacent sections of the unit tubes are detachably connected via a connecting block, one end of the connecting block is fixed to the end of one of the unit tubes, and the other end of the connecting block can be detachably nested in the other section of the unit tube, and a threading channel is provided inside the connecting block, and the rope passes through the threading channel to connect to the first movable part.

[0011] In some embodiments of the utility model, the end of the connecting block extending from the unit tube is provided with a side opening connected to the threading channel, and when one section of the unit tube is separated from the connecting block, the rope can extend from the side opening and bend so that two adjacent sections of the unit tube are arranged side by side.

[0012] According to a second aspect of the utility model, a curtain support comprises: four sections of long rod assemblies according to any of the above technical solutions, the four sections of the long rod assemblies are connected in sequence and form a rectangular frame. When the above curtain support is in use, the elastic assembly drives the first movable part to approach and tighten the rope, and all the unit tubes of one section of the long rod assembly can be pressed together and arranged in a straight line in sequence, and then the four sections of the long rod assembly are assembled together; when the curtain support is not in use, the elastic assembly loosens the rope, and all the unit tubes of one section of the long rod assembly can be separated from each other and folded to form a state parallel to each other, thereby reducing the storage volume, which is not only conducive to quick folding and storage, but also conducive to quick unfolding and use.

[0013] In some embodiments of the present utility model, strip-shaped card slots extending along the length direction are provided on the side walls of the long rod assembly. The strip-shaped card slots are adapted to the length dimension of the long rod assembly, and the strip-shaped card slots are used for clamping the installation strips provided at the edges of the projection screen.

[0014] In some embodiments of the present utility model, long strip-shaped partitions are spaced apart on the outer side wall of the long rod assembly. The long strip-shaped partitions can be elastically deformed to approach or move away from the long rod assembly. A strip-shaped card slot and an access slot communicating with the strip-shaped card slot are defined between the long strip-shaped partitions and the outer side wall of the long rod assembly. The cross-section of the strip-shaped card slot is cylindrical, and the slot width dimension of the access slot is smaller than the diameter dimension of the cross-section of the strip-shaped card slot.

[0015] In some embodiments of the present utility model, a support member is provided at each of the four corners of the rectangular frame. The support member has two mutually perpendicular support side walls that respectively abut against two sections of the long rod assembly. A positioning protrusion and a matching positioning socket are provided between the support side wall and the long rod assembly. The positioning protrusion is provided on one of the support side wall and the long rod assembly, and the positioning socket is provided on the other of the support side wall and the long rod assembly.

[0016] In some embodiments of the present utility model, calabash through holes with a larger lower part and a smaller upper part are provided through the two support members located above. Installation nuts for connecting the support feet are respectively provided at both ends of the lower end surface of the long rod assembly located at the bottom.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the long rod assembly of the present utility model;

[0020] Figure 2 is Figure 1 a schematic structural exploded view of the embodiment;

[0021] Figure 3 is a schematic structural diagram of an embodiment of the curtain bracket of the present utility model;

[0022] Figure 4 is Figure 3 a schematic internal cross-sectional view of the upper right corner position of the embodiment;

[0023] Figure 5 Internal cross-sectional schematic diagram of the unit tube at the starting end of the long rod assembly connected to the adjacent unit tube;

[0024] Figure 6 is Figure 1 Schematic structural diagram of the long rod assembly after folding and storage in the embodiment;

[0025] Figure 7 is Figure 6 Schematic structural diagram from another perspective of

[0026] Reference numerals:

[0027] Long rod assembly 100; unit tube 110; first movable member 120; rope 130; limiting member 140; right-angle connecting member 150; connecting block 160; side opening 161; positioning socket 170; tensioning assembly 200; second movable member 210; adjusting screw 220; nut member 230; long strip partition 300; strip-shaped card slot 310; access slot 320; support member 400; positioning protrusion 410; gourd through-hole 420. Detailed description of the specific implementation

[0028] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0029] In the description of the present invention, it should be understood that with respect to the orientation description, for example, terms such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0030] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, and understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0032] See Figures 1 to 7 , a long rod assembly 100 of the present utility model includes: a plurality of unit tubes 110 arranged in sequence, a first movable member 120 is provided in the unit tube 110 at the starting end; a rope 130, one end of the rope 130 is connected to the first movable member 120, and the other end of the rope 130 sequentially passes through the interiors of all the unit tubes 110; a tensioning assembly 200 is provided on the unit tube 110 at the end, and is connected to the end of the rope 130 away from the first movable member 120, and the tensioning assembly 200 has a first state of tensioning the rope 130 and a second state of relaxing the rope 130; when the tensioning assembly 200 is in the first state, the first movable member 120 moves close to the tensioning assembly 200 so that all the unit tubes 110 are sequentially tightened and arranged in a straight line; when the tensioning assembly 200 is in the second state, the tensioning assembly 200 and the rope 130 of the first movable member 120 are extended so that all the unit tubes 110 can be folded to form a mutually parallel state.

[0033] When the long rod assembly 100 with the above structure is in use, the tensioning assembly 200 drives the first movable member 120 to approach and tighten the rope 130, and all the unit tubes 110 can be sequentially tightened and arranged in a straight line for use; when the long rod assembly 100 is not in use, the tensioning assembly 200 loosens the rope 130, and all the unit tubes 110 can be separated from each other and folded to form a mutually parallel state, thereby reducing the storage volume, which is beneficial for both quick folding and storage and quick unfolding and use.

[0034] See Figure 2 , Figure 4 and Figure 5In some embodiments of the utility model, the unit tube 110 located at the starting end is provided with a limit piece 140 corresponding to the first movable piece 120, the tensioning assembly 200 includes a second movable piece 210 movably arranged in the unit tube 110 at the end, the end of the rope 130 away from the first movable piece 120 is connected to the second movable piece 210, and the end of the unit tube 110 located at the end is rotatably provided with an adjusting screw 220, the head of the adjusting screw 220 is exposed at the end of the unit tube 110, and the second movable piece 210 is fixed with a nut piece 230 matched with the adjusting screw 220. It should be noted that when all the unit tubes 110 of the long rod assembly 100 need to be assembled, the user screws the head of the adjusting screw 220 to drive the second movable member 210 close to the head of the adjusting screw 220. During this process, the first movable member 120 moves to abut against the limit member 140. At this time, the rope 130 connected between the first movable member 120 and the second movable member 210 is tightened, and the end faces of the two adjacent unit tubes 110 are pressed together to form a straight-line long rod assembly 100 with a stable structure. The tensioning assembly 200 of this structure has a better tightening effect on the rope 130. The adjusting screw 220 and the nut member 230 cooperate to prevent the rope 130 from automatically loosening. Figure 6 and Figure 7 When the long rod assembly 100 needs to be split into multiple unit tubes 110 and folded for storage, the user rotates the head of the adjusting screw 220 to drive the second movable member 210 away from the head of the adjusting screw 220. At this time, the rope 130 connected between the first movable member 120 and the second movable member 210 becomes loose, and the two adjacent unit tubes 110 can be separated along the length direction of the unit tubes 110, and then gathered to be parallel to each other. The part of the rope 130 extending out of the two adjacent unit tubes 110 is bent. When the unit tubes 110 are folded and stored into a bundle, the extension path of the rope 130 is serpentine.

[0035] Specifically, the rope 130 is a steel wire rope, and the stopper 140 is a stopper screw extending into the unit tube 110 where the first movable member 120 is located, and the stopper screw prevents the first movable member 120 from being separated from the unit tube 110. Of course, in other embodiments, the rope 130 can also be a nylon rope, a braided rope, etc.

[0036] See also Figure 1 and Figure 4, in some embodiments of the present utility model, a right-angle connector 150 is provided at the end of the unit tube 110 located at the end. The adjusting screw 220 is movably inserted through one end of the right-angle connector 150, and the other end of the right-angle connector 150 is used for plugging and mating with the unit tube 110 at the starting end of another long rod assembly 100. It can be understood that the right-angle connector 150 is used for rotatably arranging the adjusting screw 220 and for splicing another section of the long rod assembly 100, with a simple and ingenious structure. Specifically, the unit tube 110 at the starting end of the long rod assembly 100 is tightly fitted after being sleeved outside the right-angle connector 150.

[0037] See Figure 2 and Figure 5 , in some embodiments of the present utility model, in order to prevent the adjacent two unit tubes 110 from being easily displaced when assembled together, the adjacent two unit tubes 110 are detachably connected by a connecting block 160. One end of the connecting block 160 is fixed to the end of one of the unit tubes 110, and the other end of the connecting block 160 is provided for the other unit tube 110 to be detachably nested. A threading channel is provided through the inside of the connecting block 160, and the rope 130 passes through the threading channel to connect the first movable member 120.

[0038] See Figures 5 to 7 , in some embodiments of the present utility model, a side opening 161 communicating with the threading channel is provided at one end of the connecting block 160 extending out of the unit tube 110. When one of the unit tubes 110 is separated from the connecting block 160, the rope 130 can extend out from the side opening 161 and be bent so that the adjacent two unit tubes 110 are arranged side by side. It can be understood that when the adjacent two unit tubes 110 are folded and stacked in parallel, due to the existence of the side opening 161, the length of the part of the rope 130 extending out of the unit tube 110 can be shortened, the cost can be reduced, and the service life of the rope 130 can also be prevented from being reduced due to excessive bending.

[0039] See Figure 2 and Figure 3The utility model also discloses a curtain support, comprising: four sections of long rod assemblies 100 according to any of the above technical solutions, the four sections of the long rod assemblies 100 are connected in sequence and surround a rectangular frame. When the above curtain support is in use, the elastic assembly 200 drives the first movable member 120 to approach and tighten the rope 130, and all the unit tubes 110 of one section of the long rod assembly 100 can be pressed together and arranged in a straight line in sequence, and then the four sections of the long rod assembly 100 are assembled together; when the curtain support is not in use, the elastic assembly 200 loosens the rope 130, and all the unit tubes 110 of one section of the long rod assembly 100 can be separated from each other and folded to form a state parallel to each other, thereby reducing the storage volume, which is not only conducive to rapid folding and storage, but also conducive to rapid unfolding and use.

[0040] See also Figure 6 and Figure 7 In some embodiments of the utility model, the side walls of the long rod assembly 100 are provided with strip-shaped card slots 310 extending along the length direction thereof, and the strip-shaped card slots 310 are adapted to the length dimension of the long rod assembly 100, and the strip-shaped card slots 310 are used to clamp the mounting strips provided at the edge of the projection screen. It should be noted that the projection screen is rectangular, and the four edges of the projection screen are pre-fixed with slender mounting strips. The installation of the projection screen can be completed by clamping the four mounting strips into the strip-shaped card slots 310 respectively, which is very convenient, and the entire contour edge of the projection screen is stressed, and the projection screen is better tensioned, thereby ensuring the projection effect.

[0041] See also Figure 6 and Figure 7 In some embodiments of the utility model, the outer side wall of the long rod assembly 100 is separated by a long strip partition 300, and the long strip partition 300 can be elastically deformed to approach or move away from the long rod assembly 100. The strip slot 310 and the inlet and outlet slot 320 connected to the strip slot 310 are defined between the long strip partition 300 and the outer side wall of the long rod assembly 100. The cross section of the strip slot 310 is cylindrical, and the slot width of the inlet and outlet slot 320 is smaller than the diameter of the cross section of the strip slot 310. Specifically, the cross-sectional shape of the installation bar is adapted to the cross-sectional shape of the strip slot 310. When the installation bar enters from the inlet and outlet slot 320, it can drive the long strip partition 300 to elastically deform to move away from the long rod assembly 100, so that the installation bar can smoothly enter the strip slot 310.

[0042] See also Figure 3, in some embodiments of the present utility model, in order to make the spliced rectangular frame not easily deformed, a support member 400 is provided at each of the four corners of the rectangular frame. The support member 400 has two mutually perpendicular support side walls that respectively abut against two sections of the long rod assembly 100. In order to achieve the convenient disassembly and assembly of the support member 400, a positioning protrusion 410 and a matching positioning socket 170 are provided between the support side wall and the long rod assembly 100. The positioning protrusion 410 is provided on one of the support side wall and the long rod assembly 100, and the positioning socket 170 is provided on the other of the support side wall and the long rod assembly 100.

[0043] See Figure 3 , in some embodiments of the present utility model, a calabash through hole 420 with a larger lower part and a smaller upper part is provided through the two support members 400 located above. At both ends of the lower end surface of the long rod assembly 100 located at the bottom, an installation nut for connecting a support leg is respectively provided. It can be understood that when the support legs are connected to the installation nuts, the two support legs can be used to support and fix the curtain bracket when placed on the ground. After the support legs are removed, the two calabash through holes 420 can be used to hang on the wall for use, so as to be applicable to two usage scenarios.

[0044] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0045] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A long rod assembly (100), characterized in that: include: A plurality of sequentially arranged unit tubes (110), wherein a first movable member (120) is disposed in the unit tube (110) at the beginning; a rope (130), one end of the rope (130) being connected to the first movable member (120), and the other end of the rope (130) passing through the interior of all the unit tubes (110) in sequence; a tensioning assembly (200), arranged on the unit tube (110) at the end, connected to an end of the rope (130) away from the first movable member (120), the tensioning assembly (200) having a first state of tightening the rope (130) and a second state of loosening the rope (130); When the elastic component (200) is in the first state, the first movable part (120) moves close to the elastic component (200) so that all the unit tubes (110) are pressed against each other in sequence and arranged in a straight line; when the elastic component (200) is in the second state, the rope (130) between the elastic component (200) and the first movable part (120) is extended so that all the unit tubes (110) can be folded and formed into a state parallel to each other.

2. The long rod assembly (100) according to claim 1, characterized in that: The unit tube (110) located at the starting end is provided with a limit piece (140) corresponding to the first movable piece (120); the tension assembly (200) includes a second movable piece (210) movably arranged in the unit tube (110) at the end; one end of the rope (130) away from the first movable piece (120) is connected to the second movable piece (210); the end of the unit tube (110) located at the end is rotatably provided with an adjusting screw (220); the head of the adjusting screw (220) is exposed at the end of the unit tube (110); and the second movable piece (210) is fixedly provided with a nut piece (230) adapted to the adjusting screw (220).

3. The long rod assembly (100) according to claim 2, characterized in that: The end of the unit tube (110) located at the end is provided with a right-angle connector (150), the adjusting screw (220) is movably inserted into one end of the right-angle connector (150), and the other end of the right-angle connector (150) is used for plugging and matching the unit tube (110) at the starting end of another long rod assembly (100).

4. The long rod assembly (100) according to claim 1, characterized in that: Two adjacent sections of the unit tubes (110) are detachably connected via a connecting block (160), one end of the connecting block (160) is fixed to the end of one section of the unit tube (110), and the other end of the connecting block (160) can be detachably nested in the other section of the unit tube (110), and a threading channel is provided inside the connecting block (160), and the rope (130) passes through the threading channel to connect to the first movable member (120).

5. The long rod assembly (100) according to claim 4, characterized in that: One end of the connecting block (160) extending from the unit tube (110) is provided with a side opening (161) connected to the threading channel. When one section of the unit tube (110) is separated from the connecting block (160), the rope (130) can extend from the side opening (161) and bend so that two adjacent sections of the unit tube (110) are arranged side by side.

6. A curtain support, characterized in that: include: Four sections of the long rod assembly (100) according to any one of claims 1 to 5, wherein the four sections of the long rod assembly (100) are connected in sequence to form a rectangular frame.

7. A curtain support according to claim 6, characterized in that: The side walls of the long rod assembly (100) are each provided with a strip-shaped card slot (310) extending along the length direction thereof, the strip-shaped card slot (310) being adapted to the length dimension of the long rod assembly (100), and the strip-shaped card slot (310) being used for carding a mounting strip arranged at the edge of a projection screen.

8. The curtain support according to claim 7, characterized in that: The outer wall of the long rod assembly (100) is spaced apart with a long partition (300), and the long partition (300) can be elastically deformed to approach or move away from the long rod assembly (100), and the strip groove (310) and the inlet and outlet slot (320) connected to the strip groove (310) are defined between the long partition (300) and the outer wall of the long rod assembly (100), and the cross-section of the strip groove (310) is cylindrical, and the groove width of the inlet and outlet slot (320) is smaller than the diameter of the cross-section of the strip groove (310).

9. The curtain support according to claim 6, characterized in that: A support member (400) is provided at each of the four corners of the rectangular frame. The support member (400) has two supporting side walls which are perpendicular to each other and respectively abut against two sections of the long rod assembly (100). A positioning protrusion (410) and a matching positioning socket (170) are provided between the supporting side wall and the long rod assembly (100). The positioning protrusion (410) is provided on one of the supporting side wall and the long rod assembly (100), and the positioning socket (170) is provided on the other of the supporting side wall and the long rod assembly (100).

10. The curtain support according to claim 9, characterized in that: The two upper support members (400) are penetrated by gourd through holes (420) that are larger at the bottom and smaller at the top, and the two ends of the lower end surface of the long rod assembly (100) at the bottom are respectively provided with a mounting nut for connecting the supporting feet.

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