A curtain tube tail plug and a curtain system

Abstract

The utility model relates to a window curtain technology field especially a window curtain winding pipe tail plug and window curtain system, the window curtain winding pipe tail plug, including tail plug module and spring module, first spring module detachable setting at tail plug module, detachable series connection together between spring module, and can mutually transmit elastic force. One or more spring modules can be arranged on the tail plug module. When multiple spring modules, spring module series connection together, and spring module can mutually transmit elastic force. The design through the quantity of spring module increases or decreases, can correspondingly increase the elastic force, and elastic force is adjusted flexible and convenient, and the use scene is more.

Description

Technical Field

[0001] This utility model relates to the field of curtain technology, and in particular to a curtain roller end plug and a curtain. Background Technology

[0002] Some manually operated curtains on the market use torsion springs to roll up. Some curtains are longer and heavier, requiring greater elasticity. For shorter curtains, a torsion spring with less elasticity is sufficient. However, the elasticity range of a single torsion spring is fixed, and the elasticity cannot be flexibly adjusted, resulting in poor adaptability.

[0003] For example, Chinese patent application CN201820225112.0 discloses a curtain system controller, which includes a rotating core and a locking part. The rotating core includes a rotating core body and a locking core disposed on the rotating core body. The locking part includes an outer tube and a torsion spring. The outer tube is hollow and the torsion spring is sleeved within it. The outer tube has an inner port and an outer port at both ends, and the two ends of the torsion spring extend inward to form a first locking head and a second locking head. The locking core includes a first locking groove and a second locking groove, and the first locking head and the second locking head respectively cooperate in the first locking groove and the second locking groove. The outer diameter of the torsion spring matches the inner diameter of the outer tube. This design uses a torsion spring to achieve the rolling up of the curtain. For example, Chinese patent application number CN202022199796.1 discloses a fixed-force spring curtain system. This design uses a spring (torsion spring) to achieve the winding. The elastic force range of the torsion spring is fixed and cannot be adjusted, resulting in poor flexibility. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology by providing a curtain roller end plug that can adjust the elastic force by increasing or decreasing the number of spring modules, thus offering greater flexibility and overcoming the shortcomings of the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This application provides a curtain roller end plug, including an end plug module and a spring module; a first spring module is detachably disposed in the end plug module; the spring modules are detachably connected in series and can transmit elastic force to each other.

[0006] Preferably, the tail plug module includes a tail plug shell and a first gear disposed on the tail plug shell; the spring module includes an adapter shell, a gear sleeve disposed inside the adapter shell, and a second gear connected to the gear sleeve; the second gear of the first spring module meshes with the first gear; the second gear of the subsequent spring module is inserted into the gear sleeve of the preceding spring module.

[0007] Preferably, the tail plug module further includes a first rotating sleeve and a bearing; the bearing is disposed inside the tail plug housing, and the first rotating sleeve passes through the bearing; a first connecting hole is provided at the first end of the first rotating sleeve, and the first connecting hole is exposed at the first end of the tail plug housing; a second connecting hole is provided at the second end of the first rotating sleeve; and the first gear is inserted into the second connecting hole.

[0008] Preferably, the tail plug shell includes a tail plug shell body and a tail plug shell cover fastened to the tail plug shell body; the tail plug shell cover is provided with a first fastening part; The adapter shell includes an adapter shell body and an adapter shell cover that is fastened to the adapter shell body; a second fastening part is provided on the adapter shell cover; a third fastening part is provided at the second end of the adapter shell body; The second fastening part can be fastened to the first fastening part; the second fastening part on the subsequent spring module can be fastened to the third fastening part of the preceding spring module.

[0009] Preferably, a first gear shaft is formed in the first cover portion formed on the outer side of the tail plug cover, and the first gear shaft is inserted into the first gear; a second gear shaft is formed in the second cover portion formed on the inner side of the tail plug cover, and the second gear shaft is inserted into the second gear.

[0010] Preferably, a first limiting protrusion is provided on a portion of the first fastening part; a limiting opening is provided on a portion of the second fastening part; and a second limiting protrusion is provided on a portion of the third fastening part; the first limiting protrusion and the second limiting protrusion can be embedded into the corresponding limiting opening.

[0011] Preferably, the spring module further includes a second rotating sleeve and a spring coil; the rotating shaft inside the adapter shell body passes through the second rotating sleeve; and the spring coil is wound around the second rotating sleeve and the gear sleeve.

[0012] Preferably, the outer walls of the tail plug module and the spring module are provided with mounting grooves; the tail plug module and the spring module are inserted into the winding tube, and the limiting part inside the winding tube is embedded in the mounting groove.

[0013] Preferably, there is one tail plug module and four spring modules; the first spring module is located in the tail plug module, and the remaining spring modules are connected in sequence.

[0014] This application provides a curtain system, including a curtain roller end plug, a roller, a side rail, and curtain fabric; the curtain roller end plug is disposed on an end plate, and the left and right edges of the curtain fabric slide up and down within the side rail; the curtain fabric is rolled onto the roller.

[0015] Compared with existing technologies, this invention has significant advantages and beneficial effects. Specifically, as shown in the above technical solution, one or more spring modules can be set on the tail plug module. When two or more spring modules are set, they are connected in series, and the spring modules can transmit elastic force to each other. This design can increase the elastic force by increasing or decreasing the number of spring modules, making the elastic force adjustment flexible and convenient, and applicable to a variety of scenarios.

[0016] The design incorporates multiple spring modules connected in series, accommodating different weights and making it suitable for various types of curtains. Furthermore, the spring coils can be interchanged at the left and right ends, eliminating the need for separate left and right spring modules. Additionally, a bearing is integrated into the end cap, ensuring smoother curtain rolling.

[0017] The spring coil is wound around the second rotating sleeve and the gear sleeve, meaning that the spring coil is already installed and adjusted in the initial state without the need for pre-tightening. This type of assembly is more time-saving, labor-saving, and saves assembly costs.

[0018] The tail plug module and spring module, as well as the spring modules themselves, are assembled using a snap-fit ​​method, eliminating the need for screws. This simplifies the assembly structure and increases assembly efficiency. Furthermore, the number of spring modules can be flexibly adjusted as needed, offering great convenience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of the present utility model.

[0020] Figure 2 This is an assembly diagram of one embodiment of the present utility model.

[0021] Figure 3 This is an exploded view of one embodiment of the present invention.

[0022] Figure 4 This is an exploded view of one embodiment of the present invention.

[0023] Figure 5 This is an assembly diagram of Embodiment 2 of this utility model.

[0024] Figure 6 This is a partial structural schematic diagram of Embodiment 2 of this utility model.

[0025] Explanation of reference numerals in the attached diagram: 10. Tail plug module; 110. Tail plug shell; 111. Tail plug shell body; 112. Tail plug shell cover; 113. First fastening part; 114. First limiting protrusion; 115. Bearing; 116. First rotating sleeve; 117. First connecting hole; 118. Second connecting hole; 119. First gear; 120. First cover; 121. First gear shaft; 122. Second cover; 123. Second gear shaft; 124. Mounting... 20. Groove; 210. Spring module; 211. Adapter shell; 212. Adapter shell cover; 213. Second fastening part; 214. Limiting port; 215. Adapter shell body; 216. Third fastening part; 217. Second limiting protrusion; 218. Second gear; 219. Gear sleeve; 220. Second rotating sleeve; 221. Spring ring; 222. Rotating shaft; 30. End plate; 31. Roller tube; 32. Side rail; 33. Curtain fabric. Detailed Implementation

[0026] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0027] Example 1 Please refer to Figures 1 to 4 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, which is a curtain roller end plug.

[0028] The total elastic force can be adjusted by adding spring module 20, which can adapt to more usage scenarios.

[0029] This application provides a curtain roller tube end plug, including an end plug module 10 and a spring module 20. A first spring module 20 is detachably mounted on the end plug module 10. The spring modules 20 are detachably connected in series and can transmit elastic force to each other. There can be one or more spring modules 20. In this embodiment, there are four spring modules 20. The spring modules 20 can transmit elastic force to each other, resulting in greater elasticity for the entire curtain roller tube 31 end plug. The spring modules 20 can transmit elastic force through gears, shafts 221, etc. The spring modules 20 can be assembled into the end plug module 10 using clips, screws, etc. Multiple spring modules 20 are connected in series, with the ends connected, resulting in greater elasticity. Furthermore, this series connection method allows for the accommodation of many spring modules 20 within a roller tube 31 of the same inner diameter, offering good flexibility and versatility.

[0030] Preferably, the tail plug module 10 includes a tail plug shell 110 and a first gear 119 disposed on the tail plug shell 110; the spring module 20 includes an adapter shell 210, a gear sleeve 218 disposed within the adapter shell 210, and a second gear 217 connected to the gear sleeve 218; the second gear 217 of the first spring module 20 meshes with the first gear 119; the second gear 217 of the subsequent spring module 20 is inserted into the gear sleeve 218 of the previous spring module 20. The tail plug shell 110 and the adapter shell 210 can be assembled by snap-fit ​​or screws, and in this embodiment, snap-fit ​​assembly is preferred. The second gear 217 meshes with the first gear 119, and the two can transmit elastic force to each other. The gear sleeve 218 rotates synchronously with the second gear 217. Taking two spring modules 20 as an example, when assembling the tail plug of the coil 31, the second gear 217 of the first spring module 20 meshes with the first gear 119 of the tail plug module 10, and the second gear 217 of the second spring module 20 is inserted into the gear sleeve 218 of the first spring module 20. This design allows the transmission of elastic force between the tail plug module 10 and the spring module 20, and between the spring modules 20 themselves. This process continues if there are more spring modules 20.

[0031] Preferably, the tail plug module 10 further includes a first rotating sleeve 116 and a bearing 115; the bearing 115 is disposed inside the tail plug housing 110, and the first rotating sleeve 116 passes through the bearing 115; a first connecting hole 117 is provided at the first end of the first rotating sleeve 116, which is exposed at the first end of the tail plug housing 110; a second connecting hole 118 is provided at the second end of the first rotating sleeve 116; the first gear 119 is inserted into the second connecting hole 118. The first connecting hole 117 on the first rotating sleeve 116 can be used to connect a motor, or it can be used to connect with a mounting post on the end plate 30. The first rotating sleeve 116 can rotate on the bearing 115. When the tail plug housing 110 and the adapter housing 210 rotate, the first rotating sleeve 116 rotates relative to the tail plug housing 110 and the adapter housing 210, causing the spring coil 220 inside the spring module 20 to start storing force. When the elasticity is released, the tail plug shell 110 and the adapter shell 210 rotate, and the curtain rolls up.

[0032] Preferably, the tail plug shell 110 includes a tail plug shell body 111 and a tail plug shell cover 112 fastened to the tail plug shell body 111; the tail plug shell cover 112 is provided with a first fastening part 113; the adapter shell 210 includes an adapter shell body 214 and an adapter shell cover 211 fastened to the adapter shell body 214; the adapter shell cover 211 is provided with a second fastening part 212; the second end of the adapter shell body 214 is provided with a third fastening part 215; the second fastening part 212 can fasten to the first fastening part 113; the second fastening part 212 on the subsequent spring module 20 can fasten to the third fastening part 215 of the preceding spring module 20. The tail plug shell body 111 and the tail plug shell cover 112 are assembled by fastening. The adapter shell body 214 and the adapter shell cover 211 are assembled by fastening. There are three of each of the first fastening part 113, the second fastening part 212, and the third fastening part 215. When the tail plug shell 110 is assembled with the adapter shell 210, the first fastening part 113 on the tail plug shell cover 112 is fastened to the second fastening part 212 on the first adapter shell cover 211. When the spring modules 20 are connected in series, the second fastening part 212 on the subsequent spring module 20 can be fastened to the third fastening part 215 of the preceding spring module 20. This mode makes the assembly between the tail plug module 10 and the spring module 20, as well as between the spring modules 20, very convenient and efficient.

[0033] Preferably, a first gear shaft 121 is formed within a first cover portion 120 formed on the outer side of the tail plug cover 112, and this first gear shaft 121 is inserted into a first gear 119; a second gear shaft 123 is formed within a second cover portion 122 formed on the inner side of the tail plug cover 112, and this second gear shaft 123 is inserted into a second gear 217. The insertion of the first gear shaft 121 into the first gear 119 ensures smooth movement of the first gear 119; the insertion of the second gear shaft 123 into the second gear 217 ensures smooth movement of the second gear 217. The cooperation of the first gear shaft 121 and the second gear shaft 123 results in better force distribution and stability after the first gear 119 and the second gear 217 mesh.

[0034] Preferably, a first limiting protrusion 114 is provided on one of the first fastening portions 113; a limiting opening 213 is provided on one of the second fastening portions 212; and a second limiting protrusion 216 is provided on one of the third fastening portions 215. The first limiting protrusion 114 and the second limiting protrusion 216 can be embedded into the corresponding limiting opening 213. The cooperation between the limiting protrusion and the limiting opening 213 can ensure the firmness of the fastening after fastening, prevent loosening, and make assembly more convenient. The cross-section of the limiting protrusion and the limiting opening 213 is arc-shaped.

[0035] Preferably, the spring module 20 further includes a second rotating sleeve 219 and a spring coil 220; the rotating shaft 221 inside the adapter housing 214 passes through the second rotating sleeve 219; the spring coil 220 is wound around the second rotating sleeve 219 and the gear sleeve 218. The spring coil 220 is a torsion spring coil. The end of the torsion spring can be connected to the second rotating sleeve 219 and the spring coil 220 by screws. The spring coil 220 can perform retraction and release actions between the second rotating sleeve 219 and the gear sleeve 218, correspondingly realizing the storage and release of elastic force, so that the end plug of the curtain roller tube 31 can drive the roller tube 31 to release or roll up the curtain. The end plug of the curtain roller tube 31 in this curtain system can be installed at the left and right ends of the roller tube 31. During use, it is only necessary to reverse the left and right sides of the spring coil 220 during installation, which is very convenient. It can be seen that the end plug of the curtain roller tube 31 under this design has good versatility.

[0036] Preferably, the outer walls of the end plug module 10 and the spring module 20 are provided with mounting grooves 124; the end plug module 10 and the spring module 20 are inserted into the roller tube 31, and the limiting part inside the roller tube 31 is embedded in the mounting groove 124. The limiting part is a raised elongated strip. The end plug of the curtain roller tube 31 is inserted into the roller tube 31, and the first rotating sleeve 116 is connected to the end plate 30. When the curtain is pulled, the roller tube 31 rotates, the spring coil 220 stores force, and the elastic force is released to realize the rolling up of the curtain.

[0037] Preferably, there is one tail plug module 10 and four spring modules 20; the first spring module 20 is located in the tail plug module 10, and the remaining spring modules 20 are connected in sequence. The number of spring modules 20 can be set as needed and is not specifically limited. The spring modules 20 are assembled in series, so that the elastic force can be superimposed. Multiple sets of spring modules 20 can be set in the same size coil tube 31, which makes the tail plug of this type of coil tube 31 more applicable.

[0038] Example 2 Example 2 includes the curtain roller end plug from Example 1; the identical parts will not be described again. Please refer to... Figure 5-6 As shown, this application provides a curtain system, including a curtain roller tube end plug, a roller tube 31, a side rail 32, and a curtain fabric 33. The curtain roller tube 31 end plug is disposed on an end plate 30, and the left and right edges of the curtain fabric 33 slide up and down within the side rail 32. The curtain fabric 33 is rolled onto the roller tube 31. This curtain system, by setting the curtain roller tube 31 end plug, can achieve automatic curtain rolling. The curtain roller tube 31 end plug has good versatility, adjustable elasticity, and can reduce curtain manufacturing costs. The roller tube 31 can have an end plug module 10 at one end and an end plug module 10 + spring module 20 at the other end, or both ends can have an end plug module 10 + spring module 20, which can be configured according to needs.

[0039] In summary, the key design feature of this utility model lies in its tail plug module and its more than 10 spring modules 20. These multiple spring modules 20 are connected in series, and the spring modules 20 can transmit elastic force to each other. By increasing or decreasing the number of spring modules 20, the elastic force can be increased accordingly, making the elastic force adjustment flexible and convenient, and expanding its application scenarios.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A curtain roller end plug, characterized in that: It includes a tail plug module (10) and a spring module (20); the first spring module (20) is detachably disposed on the tail plug module (10); the spring modules (20) are detachably connected in series and can transmit elastic force to each other.

2. The curtain roller end plug according to claim 1, characterized in that: The tail plug module (10) includes a tail plug housing (110) and a first gear (119) disposed on the tail plug housing (110). The spring module (20) includes a transition shell (210), a gear sleeve (218) disposed inside the transition shell (210), and a second gear (217) connected to the gear sleeve (218). The second gear (217) of the first spring module (20) meshes with the first gear (119); The second gear (217) of the next spring module (20) is inserted into the gear sleeve (218) of the previous spring module (20).

3. The curtain roller end plug according to claim 2, characterized in that: The tail plug module (10) further includes a first rotating sleeve (116) and a bearing (115); the bearing (115) is disposed inside the tail plug housing (110), and the first rotating sleeve (116) passes through the bearing (115); the first end of the first rotating sleeve (116) is provided with a first connecting hole (117), which is exposed at the first end of the tail plug housing (110); the second end of the first rotating sleeve (116) is provided with a second connecting hole (118); the first gear (119) is inserted into the second connecting hole (118).

4. The curtain roller end plug according to claim 2, characterized in that: The tail plug shell (110) includes a tail plug shell body (111) and a tail plug shell cover (112) fastened to the tail plug shell body (111); a first fastening part (113) is provided on the tail plug shell cover (112). The adapter shell (210) includes an adapter shell body (214) and an adapter shell cover (211) that is fastened to the adapter shell body (214); a second fastening part (212) is provided on the adapter shell cover (211); a third fastening part (215) is provided at the second end of the adapter shell body (214). The second fastening part (212) can be fastened to the first fastening part (113); the second fastening part (212) on the subsequent spring module (20) can be fastened to the third fastening part (215) of the preceding spring module (20).

5. A curtain roller end plug according to claim 4, characterized in that: A first gear shaft (121) is formed inside the first cover portion (120) formed on the outer side of the tail plug cover (112), and the first gear shaft (121) is inserted into the first gear (119); a second gear shaft (123) is formed inside the second cover portion (122) formed on the inner side of the tail plug cover (112), and the second gear shaft (123) is inserted into the second gear (217).

6. A curtain roller end plug according to claim 5, characterized in that: A first limiting protrusion (114) is provided on a portion of the first fastening part (113); a limiting opening (213) is provided on a portion of the second fastening part (212); a second limiting protrusion (216) is provided on a portion of the third fastening part (215); the first limiting protrusion (114) and the second limiting protrusion (216) can be embedded into the corresponding limiting opening (213).

7. A curtain roller end plug according to claim 4, characterized in that: The spring module (20) also includes a second rotating sleeve (219) and a spring coil (220); the rotating shaft (221) inside the adapter shell body (214) passes through the second rotating sleeve (219); the spring coil (220) is wound around the second rotating sleeve (219) and the gear sleeve (218).

8. The curtain roller end plug according to claim 1, characterized in that: The outer walls of the tail plug module (10) and the spring module (20) are provided with mounting grooves (124); the tail plug module (10) and the spring module (20) are inserted into the reel (31), and the limiting part inside the reel (31) is embedded in the mounting groove (124).

9. A curtain roller end plug according to any one of claims 1-8, characterized in that: There is one tail plug module (10) and four spring modules (20); the first spring module (20) is set in the tail plug module (10), and the remaining spring modules (20) are connected in sequence.

10. A curtain system, characterized in that: Includes a curtain roller tube (31) end plug, roller tube (31), side rail (32), and curtain fabric (33) as described in any one of claims 1-9; the curtain roller tube (31) end plug is set on the end plate (30), and the left and right edges of the curtain fabric (33) slide up and down in the side rail (32); the curtain fabric (33) is rolled on the roller tube (31).

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