Winding protection structure of rope winder for venetian blind

Abstract

The utility model discloses a winding protection structure of a rope winder for a venetian blind, which comprises a winding connecting rod with a rectangular section, the winding connecting rod is connected with a winding core used for winding a winding tape, two ends of the winding core are connected with a winding tape base used for installing the winding core, the winding tape base is detachably connected with a tape supporting shell, and the tape supporting shell is connected with the winding core. The tape supporting shell is arranged on the outer side of the winding core, the winding tape base is elastically connected with a winding protection block, the winding protection block corresponds to the winding core, and the winding protection block makes contact with the winding tape. The beneficial effects of the utility model are that the arranged furling protection block is matched with the protection clamping block, so that the effect of preventing mistaken touch is effectively achieved, the protection effect is achieved, and the use effect is improved; the device is simple in structure and convenient to assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of blinds, in particular to a blind rope reel protection structure. Background Art

[0002] With the improvement of living standards, people have higher and higher requirements for the personalized doors and windows. At the same time, the requirements for the performance and aesthetics of the sunshade products of doors and windows are also getting higher and higher. Among them, blinds are widely used. Blinds are a common sunshade and decorative curtain. They are composed of multiple parallel "blades", which can be fixed or movable. Blinds can not only adjust the light in the room, but also provide privacy protection and certain energy-saving effects.

[0003] Among them, a rope winder is provided in the curtain box of the blinds. The existing rope winder only has a single function of winding the rope and lacks a protective function during the winding process. When the blinds are used, due to the effect of gravity, the speed gradually increases with the distance below, which may cause injuries when the lower end of the curtain piece is accidentally touched. Utility Model Content

[0004] The utility model aims to overcome the deficiency of the prior art that the blinds lack the anti-accidental-touch function and provides a blinds rope reel retracting protection structure with the anti-accidental-touch function and improved use effect of the rope reel.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a winding and protection structure of a rope winder for a blind curtain, comprising a winding connecting rod with a rectangular cross-section, the winding connecting rod is connected to a winding core for winding a tape, both ends of the winding core are connected to a tape base for installing the winding core, the tape base is detachably connected to a tape support shell, the tape support shell is placed on the outside of the winding core, the tape base is elastically connected to a winding and protection block, the winding and protection block corresponds to the winding core, and the winding and protection block is in contact with the tape.

[0006] The rope reel is provided with a tape base, on which a reel core is installed, and the reel core is connected to a reel connecting rod that penetrates the reel core, and the reel core is used to fix the end of the tape and wind the tape around the reel core when the reel core rotates. A detachable tape support shell is also provided on the tape base, and the tape support shell is placed on the outside of the reel core to ensure the guidance of the tape when the tape is wound. A cloth tape dimming shell is also provided on the outside of the tape support shell, and the cloth tape dimming shell is used to drive the cloth tape to move, thereby adjusting the deflection angle of the blinds. At the same time, a reel protection block is provided at the bottom of the tape base, and the reel protection block is elastically connected to the tape base. The reel protection block contacts the tape, and when an accidental touch occurs, the tape becomes a relaxed state, and the reel protection block moves under the action of elastic force, and is clamped with the reel core, so that the reel core stops winding the tape, and the curtain blades stop reeling, which plays a protective role in preventing accidental touch.

[0007] Preferably, the bottom of the tape reel base is provided with a base slot, the lower end of the tape support shell is provided with a tape support buckle, the tape support buckle is engaged with the base slot, the lower end of the tape support shell is provided with a tape support notch, the tape support notch corresponds to the reeling protection block. The base slot provided on the tape reel base is connected with the tape support buckle provided on the lower end of the tape support shell to realize the installation of the tape support shell. This structure is simple and convenient to operate and easy to install.

[0008] Preferably, the core includes a core shaft and a core block installed on the core shaft, a core groove is provided in the middle of the core block, a tape opening for inserting the tape is provided at the lower end of the core groove, a core side groove is provided on the side wall of the core block, the core side groove is communicated with the tape opening, a core cover is embedded and installed in the core side groove, the core cover is sleeved on the core shaft and the core cover presses the tape. The winding core is composed of a winding core shaft and a winding core block. The winding core shaft is connected to the winding connecting rod. The rotation of the winding connecting rod can drive the rotation of the winding core shaft to complete the winding operation of the tape. At the same time, a winding core groove is provided on the winding core block. The winding core groove is used to store the tape. A tape opening is provided at the lower end of the winding core groove. At the same time, a winding core side groove is provided on the side wall of the winding core block. The tape opening is connected to the winding core side groove. The tape is inserted into the tape opening and pressed by the winding core cover to complete the installation of the tape. This structure facilitates the installation of the tape, makes the operation simple and convenient, and has strong practicality.

[0009] Preferably, the side wall of the winding core block is provided with a plurality of evenly distributed protection card blocks, the bottom surface of the winding base is provided with a protection block assembly groove, the winding protection block comprises a protection block base and a protection block oblique block, the protection block oblique block is connected to the top surface of the protection block base, the protection block base is embedded in the protection block assembly groove, the protection block assembly groove is connected with an elastic spring, the elastic spring is connected to the protection block base, and the protection block oblique block corresponds to the protection card block. A plurality of protection blocks are arranged on the side wall of the winding core block, and at the same time, a protection block assembly groove is arranged on the winding belt base. The protection block base of the winding protection block is installed in the protection block assembly groove, and the protection block oblique block corresponds to the protection card block. At the same time, the protection block base is installed in the protection block assembly groove through an elastic spring to realize the elastic connection of the winding protection block. When the curtain blades are lowered, the winding belt is in a straight state, and the winding protection block compresses the elastic spring to make the protection block oblique block separate from the protection card block, so that the curtain blades are quickly lowered. When the curtain blades are lowered and an accidental touch occurs, the winding belt becomes a bent and relaxed state. Under the action of the elastic spring, the protection block oblique block on the winding protection block contacts the protection card block, completing the rotation locking of the winding core and realizing the anti-accidental touch operation. This structure is simple and easy to assemble and operate. At the same time, this structure can effectively prevent accidental touch.

[0010] Preferably, the protection block base is provided with a spring positioning groove, and the elastic spring is placed in the spring positioning groove. The provided spring positioning groove is used to fix the elastic spring, which can ensure the stabilizing effect of the elastic spring.

[0011] Preferably, a spring clamping column is provided on the side wall of the protection block assembly groove, a spring clamping pin is provided at the end of the spring positioning groove, and the two ends of the elastic spring are respectively clamped with the spring clamping column and the spring clamping pin. The spring clamping column provided in the protection block assembly groove and the spring clamping pin provided in the spring positioning groove jointly clamp the elastic spring, thereby realizing the elastic connection between the winding protection block and the winding tape base, and ensuring the function of preventing accidental touch.

[0012] Preferably, the bottom of the tape reel base is provided with a tape inlet, and tape inlet guide wheels are provided on both sides of the tape inlet. The side end of the protective block base is connected to a tape pull block, and the tape pull block is provided with a tape pull hole, and the tape pull hole corresponds to the tape inlet, and the tape passes through the tape pull hole and the tape inlet. The tape reel base is provided with a tape inlet, which is used for the entry of the tape. The tape inlet guide wheels provided on both sides of the tape inlet play a guiding role, which facilitates the entry of the tape and ensures the flatness of the tape. The tape pull hole provided on the tape pull block provided on the protective block base is used for the tape to pass through. Under the action of the elastic spring, the tape pull block pulls the tape, so that the tape pull hole and the tape inlet are misaligned, so that the tape stops moving, thereby achieving the effect of preventing accidental touch and improving the use effect.

[0013] The beneficial effects of the utility model are as follows: the arranged retracting protection block cooperates with the protection card block to effectively prevent accidental touch, play a protective role, and improve the use effect; the device has a simple structure and is easy to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 This is a connection view of the tape reel base and the reeling protection block of the utility model.

[0017] In the accompanying drawings,

[0018] 5. Winding connecting rod, 30. Winding core, 31. Tape winding base, 32. Supporting belt shell, 34. Winding protection block, 300. Winding core shaft, 301. Winding core block, 302. Winding core groove, 303. Tape winding mouth, 304. Winding core side groove, 305. Winding core cover, 306. Protection card block, 310. Base card slot, 311. Protection block assembly slot, 312. Elastic spring, 313. Spring card column, 314. Tape inlet, 315. Tape inlet guide wheel, 320. Supporting belt buckle, 321. Supporting belt notch, 340. Protection block base, 341. Protection block oblique block, 342. Spring positioning groove, 343. Spring bayonet, 344. Tape pulling block, 345. Tape pulling hole. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0021] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0022] Embodiment 1, as Figure 1-3 As shown, a winding protection structure of a cord winder for a blind includes a winding connecting rod 5 with a rectangular cross-section, wherein the winding connecting rod 5 is connected to a winding core 30 for winding a tape, and both ends of the winding core 30 are connected to a tape base 31 for mounting the winding core 30, and a tape support shell 32 is detachably connected to the tape base 31, and the tape support shell 32 is placed on the outside of the winding core 30, and the tape base 31 is elastically connected to a winding protection block 34, and the winding protection block 34 corresponds to the winding core 30, and the winding protection block 34 is in contact with the tape.

[0023] A base slot 310 is provided at the bottom of the tape winding base 31 , a tape buckle 320 is provided at the lower end of the tape supporting shell 32 , the tape buckle 320 is engaged with the base slot 310 , a tape notch 321 is provided at the lower end of the tape supporting shell 32 , and the tape notch 321 corresponds to the winding protection block 34 .

[0024] The core 30 includes a core shaft 300 and a core block 301 installed on the core shaft 300, a core groove 302 is provided in the middle of the core block 301, a tape opening 303 for inserting the tape is provided at the lower end of the core groove 302, a core side groove 304 is provided on the side wall of the core block 301, the core side groove 304 is connected with the tape opening 303, a core cover 305 is embedded and installed in the core side groove 304, the core cover 305 is sleeved on the core shaft 300 and the core cover 305 presses the tape.

[0025] A number of evenly distributed protection blocks 306 are arranged on the side wall of the winding core block 301, a protection block assembly groove 311 is arranged on the bottom surface of the winding base 31, the winding protection block 34 comprises a protection block base 340 and a protection block bevel block 341, the protection block bevel block 341 is connected to the top surface of the protection block base 340, the protection block base 340 is embedded in the protection block assembly groove 311, an elastic spring 312 is connected in the protection block assembly groove 311, the elastic spring 312 is connected to the protection block base 340, the protection block bevel block 341 corresponds to the protection block 306.

[0026] The protection block base 340 is provided with a spring positioning groove 342 , and the elastic spring 312 is placed in the spring positioning groove 342 .

[0027] A spring clamping column 313 is disposed on the side wall of the protection block assembly groove 311 , a spring clamping pin 343 is disposed at the end of the spring positioning groove 342 , and both ends of the elastic spring 312 are respectively clamped with the spring clamping column 313 and the spring clamping pin 343 .

[0028] A tape inlet 314 is provided at the bottom of the tape base 31, and tape feed guide wheels 315 are provided on both sides of the tape inlet 314. A tape pulling block 344 is connected to the side end of the protection block base 340, and the tape pulling block 344 is provided with a tape pulling hole 345. The tape pulling hole 345 corresponds to the tape inlet 314 and the tape passes through the tape pulling hole 345 and the tape inlet 314.

[0029] The working principle of the utility model is as follows: Figure 1-3 As shown, the rope reel is provided with a tape base 31, on which a winding core is installed, and the winding core is connected to a winding connecting rod 5 that passes through the winding core, and the winding core is used to fix the end of the tape and wind the tape around the winding core when the winding core rotates. A detachable tape support shell 32 is also provided on the tape base 31, and the tape support shell 32 is placed on the outside of the winding core to ensure the guidance of the tape when the tape is wound. A cloth tape dimming shell 33 is also provided on the outside of the tape support shell 32, and the cloth tape dimming shell 33 is used to drive the cloth tape to move, thereby adjusting the deflection angle of the blinds blades. At the same time, a winding protection block 34 is provided at the bottom of the tape base 31, and the winding protection block 34 is elastically connected to the tape base 31. The retracting protection block 34 is in contact with the tape. When an accidental touch occurs, the tape becomes relaxed, and the retracting protection block 34 moves under the action of elastic force and is engaged with the core, so that the core stops winding the tape, and the curtain blades stop retracting, thereby playing a protective role in preventing accidental touch. Among them, the base card slot 310 provided on the tape base 31 is connected with the support belt buckle 320 provided at the lower end of the support belt shell 32 to achieve the installation of the support belt shell 32. This structure is simple and convenient to operate and easy to install. A dimming cloth belt hole 331 is provided on the tape base 31. The dimming cloth belt hole 331 is used to guide the passage of the cloth belt, and plays a guiding function for the cloth belt during dimming.

[0030] Among them, the winding core is composed of a winding core shaft 300 and a winding core block 301, and the winding core shaft 300 is connected to the winding connecting rod 5. The rotation of the winding connecting rod 5 can drive the rotation of the winding core shaft 300 to complete the winding operation of the tape. At the same time, a winding core groove 302 is provided on the winding core block 301, and the winding core groove 302 is used to store the tape. A tape mouth 303 is provided at the lower end of the winding core groove 302. At the same time, a winding core side groove 304 is provided on the side wall of the winding core block 301, and the tape mouth 303 is connected to the winding core side groove 304. The tape is inserted into the tape mouth 303 and pressed by the winding core cover 305 to complete the installation of the tape. This structure facilitates the installation of the tape, makes the operation simple and convenient, and has strong practicality.

[0031] A plurality of protective card blocks 306 are arranged on the side wall of the winding core block 301. At the same time, a protective block assembly groove 311 is arranged on the winding belt base 31. The protective block base 340 of the winding protection block 34 is installed in the protective block assembly groove 311. The protective block oblique block 341 corresponds to the protective card block 306. At the same time, the protective block base 340 is installed in the protective block assembly groove 311 through an elastic spring 312 to realize the elastic connection of the winding protection block 34. When the curtain blades are lowered, the winding belt is in a straight state. The winding protection block 34 compresses the elastic spring 312 so that the protection block bevel block 341 is separated from the protection card block 306, so that the curtain blades can be quickly lowered. When the curtain blades are lowered and an accidental touch occurs, the winding tape becomes bent and relaxed. Under the action of the elastic spring 312, the protection block bevel block 341 on the winding protection block 34 contacts the protection card block 306, completing the rotation locking of the winding core and realizing the anti-accidental touch operation. This structure is simple and easy to assemble and operate. At the same time, this structure can effectively prevent accidental touch. The spring positioning groove 342 is used to fix the elastic spring 312, which can ensure the stability of the elastic spring 312. The spring clamping column 313 set in the protection block assembly groove 311 and the spring clamping pin 343 set in the spring positioning groove 342 jointly clamp the elastic spring 312 to realize the elastic connection between the winding protection block 34 and the winding tape base 31, ensuring the anti-accidental touch function.

[0032] Among them, the tape base 31 is provided with a tape inlet 314, which is used for the entry of the tape. The tape feed guide wheels 315 arranged on both sides of the tape inlet 314 play a guiding role, which facilitates the entry of the tape and ensures the flatness of the tape. The tape pulling hole 345 arranged on the tape pulling block 344 arranged on the protection block base 340 is used for the tape to pass through. Under the action of the elastic spring 312, the tape pulling block 344 pulls the tape, so that the tape pulling hole 345 and the tape inlet 314 are misaligned, so that the tape stops moving, thereby achieving the effect of preventing accidental touch and improving the use effect.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cord reel for a Venetian blind, comprising a reeling connecting rod (5) having a rectangular cross section, characterized in that: The winding connecting rod (5) is connected to a winding core (30) for winding a winding tape, and two ends of the winding core (30) are connected to a winding tape base (31) for mounting the winding core (30), and a supporting tape shell (32) is detachably connected to the winding tape base (31), and the supporting tape shell (32) is placed on the outside of the winding core (30). The winding tape base (31) is elastically connected to a winding protection block (34), and the winding protection block (34) corresponds to the winding core (30), and the winding protection block (34) is in contact with the winding tape.

2. The cord reel for blinds according to claim 1 is characterized in that: The bottom of the belt reel base (31) is provided with a base slot (310), the lower end of the belt support shell (32) is provided with a belt support buckle (320), the belt support buckle (320) is engaged with the base slot (310), and the lower end of the belt support shell (32) is provided with a belt support notch (321), the belt support notch (321) corresponds to the reeling protection block (34).

3. The cord reel for blinds according to claim 1 is characterized in that: The winding core (30) comprises a winding core shaft (300) and a winding core block (301) mounted on the winding core shaft (300); a winding core groove (302) is arranged in the middle of the winding core block (301); a winding tape opening (303) for inserting a winding tape is arranged at the lower end of the winding core groove (302); a winding core side groove (304) is arranged on the side wall of the winding core block (301); the winding core side groove (304) is communicated with the winding tape opening (303); a winding core cover (305) is embedded and mounted in the winding core side groove (304); the winding core cover (305) is sleeved with the winding core shaft (300) and the winding core cover (305) presses the winding tape.

4. The cord reel for blinds according to claim 3 is characterized in that: The side wall of the winding core block (301) is provided with a plurality of evenly distributed protection clamping blocks (306); the bottom surface of the winding base (31) is provided with a protection block assembly groove (311); the winding protection block (34) comprises a protection block base (340) and a protection block inclined block (341); the protection block inclined block (341) is connected to the top surface of the protection block base (340); the protection block base (340) is embedded in the protection block assembly groove (311); an elastic spring (312) is connected in the protection block assembly groove (311); the elastic spring (312) is connected to the protection block base (340); and the protection block inclined block (341) corresponds to the protection clamping block (306).

5. The cord retractor protective structure for blinds according to claim 4, characterized in that: The protection block base (340) is provided with a spring positioning groove (342), and the elastic spring (312) is placed in the spring positioning groove (342).

6. The cord reel for blinds according to claim 5 is characterized in that: A spring clamping column (313) is provided on the side wall of the protection block assembly groove (311), a spring clamping pin (343) is provided at the end of the spring positioning groove (342), and both ends of the elastic spring (312) are respectively clamped with the spring clamping column (313) and the spring clamping pin (343).

7. The cord reel for blinds according to claim 4 is characterized in that: The bottom of the tape base (31) is provided with a tape inlet (314), and tape inlet guide wheels (315) are provided on both sides of the tape inlet (314). The side end of the protection block base (340) is connected to a tape pull block (344), and the tape pull block (344) is provided with a tape pull hole (345), and the tape pull hole (345) corresponds to the tape inlet (314), and the tape passes through the tape pull hole (345) and the tape inlet (314).

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