Winding rope head manufacturing structure for venetian blind

Abstract

The utility model discloses a winding rope head manufacturing structure for a venetian blind, which comprises a main base connected with an upper beam of a curtain box, the main base is detachably connected with a winding wheel clamping plate, a winding rope clutch assembly is arranged in the main base, the winding rope clutch assembly comprises a winding rope clutch driving gear and a winding rope clutch driven gear, and the winding wheel clamping plate is detachably connected with the winding wheel clamping plate. The rope winding clutch driving gear and the rope winding clutch driven gear are connected in a matched mode, a connecting terminal connected with the winding connecting rod is arranged at the end of the rope winding clutch driven gear, the rope winding clutch driven gear is rotationally connected with a resistance rotor, the rope winding clutch driving gear is slidably connected with the resistance rotor in a sleeved mode, and the other end of the resistance rotor is connected with a first planetary gear. The first planetary gear is connected with a driving gear tail, the driving gear tail is connected with a bead pulling wheel, the first planetary gear and the bead pulling wheel are arranged on the left side and the right side of a rolling wheel clamping plate respectively, and a head manufacturing outer sleeve is connected to the outer side of the rolling wheel clamping plate. The utility model has the beneficial effects of convenience in assembly, good assembly operation effect and good use effect.

Description

Technical Field

[0001] The utility model relates to the technical field of venetian blinds, in particular to a rope winding head structure for a venetian blind. Background Art

[0002] A venetian blind is composed of components such as a curtain box upper beam, a rope winding head, a rope winder, and curtain blades. Among them, the rope winding head of the venetian blind is a component used to control the opening and closing of the venetian blind. It is usually made of plastic or metal materials and is designed to cooperate with the drawstring of the curtain. By pulling the rope, the rotation of the rope winding head is driven, and the rope winder is driven to wind the rope, thereby completing the control of the lifting of the curtain.

[0003] The existing rope winding heads have various functions, but their structures are complex, which is not convenient for assembly. At the same time, the driving use effect of the rope winding head is poor, which has a certain impact on the use of the venetian blind. Content of the Utility Model

[0004] The utility model aims to overcome the deficiencies of inconvenient assembly and poor use effect in the prior art, and provides a rope winding head structure for a venetian blind with convenient assembly, good assembly operation effect, and good use effect.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions: A rope winding head structure for a venetian blind, including a main base connected to the curtain box upper beam. The main base is detachably connected with a reel clamping plate. A rope winding clutch assembly is installed in the main base. The rope winding clutch assembly includes a rope winding clutch driving gear and a rope winding clutch driven gear. The rope winding clutch driving gear and the rope winding clutch driven gear are matched and connected. A connection terminal connected to the winding link is arranged at the end of the rope winding clutch driven gear. The rope winding clutch driven gear is rotatably connected with a resistance rotor. The rope winding clutch driving gear is slidably sleeved on the resistance rotor. The other end of the resistance rotor is connected with a first planetary gear. The first planetary gear is connected with a driving gear tail. The driving gear tail is connected with a bead wheel. The first planetary gear and the bead wheel are respectively arranged on the left and right sides of the reel clamping plate. The outer side of the reel clamping plate is connected with a head outer cover.

[0006] The rope winding head of this volume includes a main base, which is installed inside the upper beam of the curtain box. A reel clamping plate is arranged on the main base, and the reel clamping plate is detachably clamped to the main base. This connection method is convenient for assembly and installation. A rope winding clutch assembly is installed inside the main base. The rope winding clutch assembly includes a rope winding clutch driving gear and a rope winding clutch driven gear, and the two are meshed and connected. One end of the rope winding clutch driven gear is connected with a connection terminal, and the connection terminal is externally connected to the winding connection of the curtain box, that is, the connection terminal plays a role in providing rotational power outward. A resistance rotor is rotatably connected to the other end of the rope winding clutch driven gear. Among them, the rope winding clutch driving gear is slidably sleeved on the resistance rotor, that is, the rope winding clutch driving gear can slide on the resistance rotor. The other end of the resistance rotor is connected with a first planetary gear, the other end of the first planetary gear is connected with a driving gear tail, and the driving gear tail is connected with a pull bead wheel. At the same time, the pull bead wheel is placed on the right side of the reel clamping plate, and the first planetary gear is placed on the left side of the reel clamping plate. The rigger, a pull bead rope is wound around the pull bead wheel. Pulling the pull bead rope can drive the rotation of the driving gear tail, and then drive the first planetary gear to rotate, so as to drive the rope winding clutch assembly to realize transmission, and transmit the rotational power provided by the pull bead rope to the connection terminal through the first planetary gear and the rope winding clutch assembly, and complete the rotational drive of the winding connecting rod of the curtain box. Furthermore, the retraction operation of the venetian blind is realized. This device uses the first planetary gear structure and the rope winding clutch assembly structure, which improves the transmission efficiency, makes the operation simple and convenient. At the same time, the structure is simple and convenient for assembly and installation.

[0007] Preferably, a first mounting hole is arranged at the left end of the main base, and a mounting cavity is arranged at the right end of the main base. The rope winding clutch driven gear is sleeved with the first mounting hole, the first planetary gear is placed in the mounting cavity, the rope winding clutch driven gear is provided with a limit card, the limit card contacts the end face of the first mounting hole, the rope winding clutch driven gear is provided with a cylindrical hole, and the end of the resistance rotor is cylindrical and is rotatably connected with the cylindrical hole. The first mounting hole and the mounting cavity arranged on the main base are used for mounting the rope winding clutch driven gear and the first planetary gear. The limit card arranged on the rope winding clutch driven gear contacts the outer end face of the first mounting hole to ensure the limit installation of the rope winding clutch driven gear. At the same time, the cylindrical hole arranged on the inner side face of the rope winding clutch driven gear is connected with the cylindrical structure of the resistance rotor, which determines the installation position of the rope winding clutch driven gear. This structural design is convenient for assembly and installation and has a good use effect.

[0008] Preferably, a gear connection cylinder is provided on the end face of the winding rope clutch driving gear. A clutch driving block is sleeved on the gear connection cylinder. A first limiting block is provided on the end face of the winding rope clutch driving gear. A second limiting block is provided on the end face of the clutch driving block. The first limiting block corresponds to the second limiting block. The inner wall cross-section of the gear connection cylinder and the middle cross-section of the resistance rotor are both rectangular. The gear connection cylinder is slidably sleeved on the middle part of the resistance rotor. The end face of the winding rope clutch driving gear is connected with a gear connection cylinder. The clutch driving block is sleeved on the gear connection cylinder. The gear connection cylinder is sleeved on the resistance rotor. The gear connection cylinder can slide on the resistance rotor. Among them, when the first limiting block contacts the second limiting block, the clutch driving block and the winding rope clutch driving gear can rotate synchronously. This structure can realize the clutch action of the winding rope clutch assembly and ensure the normal clutch function.

[0009] Preferably, a first fixing column is provided at the inner bottom of the main base. The clutch driving block is provided with a spiral clutch moving groove. A transition notch is provided at the end of the clutch moving groove. The first fixing column is placed in the clutch moving groove. The first fixing column installed inside the main base is embedded in the clutch moving groove on the clutch driving block. When the clutch moving block rotates, the first fixing column can move along the clutch moving groove, enabling the clutch moving block to achieve axial movement. When the first fixing column is placed at the end of the clutch moving groove, the provided transition notch enables the first fixing column to continuously rotate around the clutch moving groove, ensuring the continuous clutch state and thus ensuring the normal clutch function of the winding rope clutch assembly.

[0010] Preferably, the installation cavity is provided with an installation card slot. The winding wheel clamp plate is provided with an installation card strip. The installation card strip is clamped with the installation card slot. A third limiting block is provided on the end face of the planet carrier of the first planetary gear. A fourth limiting block is connected to the end of the resistance rotor. The third limiting block corresponds to the fourth limiting block. The installation card strip is embedded in the installation card slot to complete the clamping installation of the main base and the winding wheel clamp plate. The cooperation of the provided third limiting block and the fourth limiting block enables the first planetary gear and the resistance rotor to rotate synchronously, playing a role in rotational transmission and ensuring the normal function of providing rotational power. This structure is simple and makes the assembly and installation simple and convenient.

[0011] Preferably, the sun gear in the first planetary gear is connected to the end of the driving gear tail. A gear tail card is provided at the end of the driving gear tail. The gear tail card is provided with a gear tail card slot. The pull bead wheel is provided with a central groove. The cross-section of the central groove is rectangular. The driving gear tail passes through the winding wheel clamp plate and the gear tail card slot is clamped with the central groove. The sun gear of the first planetary gear is connected to the driving gear tail. The driving gear tail is connected to the pull bead wheel, enabling the pull bead wheel to drive the first planetary gear to rotate when rotating, thereby ensuring the normal transmission function of the first planetary gear and the transmission effect of rotation.

[0012] Preferably, a protective cover plate is connected to the outer side wall of the reel clamping plate. The protective cover plate is an annular plate, and the bead wheel is placed inside the protective cover plate. The protective cover plate is provided with a bead rope opening, a bead rope baffle is arranged above the bead rope opening, and a bead rope guide wheel is arranged below the bead rope opening. The protective cover plate arranged on the reel clamping plate is annular, which can prevent the bead rope installed in the bead wheel from moving out of the bead wheel. At the same time, the arranged bead rope baffle and bead rope guide wheel can play a guiding role in pulling the bead rope, ensuring that the bead wheel can be pulled by the bead rope to drive rotation. This structure is simple, convenient to assemble, and can ensure good use effect.

[0013] Preferably, the bead wheel is provided with a bead rope groove, and a plurality of uniformly arranged friction columns are arranged on the inner side wall of the bead rope groove. The friction columns arranged on the inner wall of the bead rope groove on the bead wheel can increase the friction force and improve the use effect. At the same time, the structure is simple and convenient, and it is convenient to assemble and install.

[0014] Preferably, a head notch is arranged on the side wall of the head outer sleeve, and the head notch is aligned with the bead rope opening. The arranged head notch is aligned with the bead rope opening, which is convenient for the installation of the bead rope, making the installation and assembly simple, the operation convenient, and the use effect good.

[0015] Preferably, installation clamping blocks are arranged on the inner bottom of the head outer sleeve, positioning protrusions are arranged at the bottom of the reel clamping plate, and the installation clamping blocks are connected to the positioning protrusions. The arranged installation clamping blocks cooperate with the positioning protrusions at the bottom of the reel clamping plate to achieve clamping connection, ensuring convenient assembly and good use effect.

[0016] The beneficial effects of the present utility model are as follows: The provided first planetary gear and the rope winding clutch assembly can provide a rotation transmission effect, improve the rotation transmission ratio, and make the use effect good; the structure of this rope winding head is simple, making the assembly and installation simple and convenient; the arranged bead wheel can improve the use effect of this rope winding head. Description of the Drawings

[0017] Figure 1 is the three-dimensional view of the present utility model;

[0018] Figure 2 is the exploded view of the present utility model Figure 1 ;

[0019] Figure 3 is the exploded view of the present utility model Figure 2 ;

[0020] Figure 4 is Figure 2 the enlarged view of part A in

[0021] Figure 5 is the three-dimensional view of the reel clamping plate part in the present utility model.

[0022] Attached drawings

[0023] 20. Main base, 21. Reel clamping plate, 22. Rope winding clutch driving gear, 23. Rope winding clutch driven gear, 24. Connection terminal, 25. Resistance rotor, 26. First planetary gear, 27. Driving gear tail, 28. Pull bead wheel, 29. Bit head outer sleeve, 200. First mounting hole, 201. Mounting cavity, 202. Mounting card slot, 203. Fixed column 1, 210. Protection cover plate, 211. Pull bead rope opening, 212. Pull bead rope baffle, 213. Pull bead rope guide wheel, 214. Mounting card strip, 220. Limit card, 221. Gear connection cylinder, 222. Clutch driving block, 223. Limit block 1, 224. Limit block 2, 225. Clutch moving slot 1, 226. Transition notch 1, 230. Cylindrical hole, 250. Limit block 4, 260. Limit block 3, 270. Gear tail card, 271. Gear tail card slot, 280. Central slot, 281. Pull bead rope slot, 282. Friction column, 290. Bit head notch, 291. Mounting block, 292. Positioning protrusion. Detailed implementation manners

[0024] The following further describes the present utility model in conjunction with the attached drawings and the detailed implementation manners. 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 in no way restricts the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0025] It should be noted that the terms used here are only for describing the detailed implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used here, unless otherwise clearly specified in the context, 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, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0026] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0027] 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 differentiating the corresponding components. Without additional statements, the above terms have no special meanings and thus should not be construed as limiting the protection scope of the present application.

[0028] Embodiment 1, as Figures 1-5 shown, a rope winding head structure for a louver curtain includes a main base 20 connected to the upper beam of the curtain box. The main base 20 is detachably connected with a reel clamp 21. A rope winding clutch assembly is installed in the main base 20. The rope winding clutch assembly includes a rope winding clutch driving gear 22 and a rope winding clutch driven gear 23. The rope winding clutch driving gear 22 and the rope winding clutch driven gear 23 are matingly connected. A connection terminal 24 connected to the winding link is arranged at the end of the rope winding clutch driven gear 23. A resistance rotor 25 is rotatably connected to the rope winding clutch driven gear 23. The rope winding clutch driving gear 22 is slidably sleeved with the resistance rotor 25. The other end of the resistance rotor 25 is connected with a first planetary gear 26. The first planetary gear 26 is connected with a driving gear tail 27. The driving gear tail 27 is connected with a bead wheel 28. The first planetary gear 26 and the bead wheel 28 are respectively arranged on the left and right sides of the reel clamp 21. A head outer cover 29 is connected to the outside of the reel clamp 21.

[0029] A first mounting hole 200 is arranged at the left end of the main base 20. An installation cavity 201 is arranged at the right end of the main base 20. The rope winding clutch driven gear 23 is sleeved with the first mounting hole 200. The first planetary gear 26 is arranged in the installation cavity 201. The rope winding clutch driven gear 23 is provided with a limit card 220. The limit card 220 contacts the end face of the first mounting hole 200. The rope winding clutch driven gear 23 is provided with a cylindrical hole 230. The end of the resistance rotor 25 is cylindrical and is rotatably connected with the cylindrical hole 230.

[0030] On the end face of the winding rope clutch driving gear 22, there is a gear connecting cylinder 221. The gear connecting cylinder 221 is sleeved with a clutch driving block 222. On the end face of the winding rope clutch driving gear 22, there is a first limiting block 223. On the end face of the clutch driving block 222, there is a second limiting block 224. The first limiting block 223 corresponds to the second limiting block 224. The inner wall cross-section of the gear connecting cylinder 221 and the middle cross-section of the resistance rotor 25 are both rectangular. The gear connecting cylinder 221 is slidably sleeved with the middle part of the resistance rotor 25.

[0031] On the inner bottom of the main base 20, there is a first fixing column 203. The clutch driving block 222 is provided with a spiral clutch moving groove 225. At the end of the clutch moving groove 225, there is a transition notch 226. The first fixing column 203 is placed in the clutch moving groove 225.

[0032] The installation cavity 201 is provided with installation card slots 202. The winding wheel clamping plate 21 is provided with installation card strips 214. The installation card strips 214 are clamped with the installation card slots 202. On the end face of the planet carrier of the first planetary gear 26, there is a third limiting block 260. At the end of the resistance rotor 25, there is a fourth limiting block 250. The third limiting block 260 corresponds to the fourth limiting block 250.

[0033] The sun gear in the first planetary gear 26 is connected to the driving gear tail 27. At the end of the driving gear tail 27, there is a gear tail card 270. The gear tail card 270 is provided with a gear tail card slot 271. The pull bead wheel 28 is provided with a central groove 280. The cross-section of the central groove 280 is rectangular. The driving gear tail 27 passes through the winding wheel clamping plate 21 and the gear tail card slot 271 is clamped with the central groove 280.

[0034] On the outer side wall of the winding wheel clamping plate 21, there is a protective cover plate 210. The protective cover plate 210 is an annular plate. The pull bead wheel 28 is placed inside the protective cover plate 210. The protective cover plate 210 is provided with a pull bead rope opening 211. Above the pull bead rope opening 211, there is a pull bead rope baffle 212. Below the pull bead rope opening 211, there is a pull bead rope guide wheel 213.

[0035] The pull bead wheel 28 is provided with a pull bead rope groove 281. On the inner side wall of the pull bead rope groove 281, there are several uniformly arranged friction columns 282.

[0036] On the side wall of the socket head outer sleeve 29, there is a socket head notch 290. The socket head notch 290 is aligned with the pull bead rope opening 211.

[0037] On the inner bottom of the socket head outer sleeve 29, there is an installation card block 291. At the bottom of the winding wheel clamping plate 21, there is a positioning protrusion 292. The installation card block 291 is connected to the positioning protrusion 292.

[0038] The working principle of the present utility model is as follows: As Figures 1-5 shown, the rope winding head of the present invention includes a main base 20, which is installed inside the upper beam of the curtain box. A reel clamping plate 21 is provided on the main base 20. The reel clamping plate 21 is detachably clamped to the main base 20. This connection method is convenient for assembly and installation. A rope winding clutch assembly is installed inside the main base 20. The rope winding clutch assembly includes a rope winding clutch driving gear 22 and a rope winding clutch driven gear 23, and the two are meshed and connected. One end of the rope winding clutch driven gear 23 is connected with a connection terminal 24, and the connection terminal 24 is externally connected to the winding connection of the curtain box, that is, the connection terminal 24 plays a role of providing rotational power outward. A resistance rotor 25 is rotatably connected to the other end of the rope winding clutch driven gear 23. Among them, the rope winding clutch driving gear 22 is slidably sleeved on the resistance rotor 25, that is, the rope winding clutch driving gear 22 can slide on the resistance rotor 25. The other end of the resistance rotor 25 is connected with a first planetary gear 26, the other end of the first planetary gear 26 is connected with a driving gear tail 27, and the driving gear tail 27 is connected with a pull bead wheel 28. At the same time, the pull bead wheel 28 is placed on the right side of the reel clamping plate 21, and the first planetary gear 26 is placed on the left side of the reel clamping plate 21. Among them, a pull bead rope is wound around the pull bead wheel 28. Pulling the pull bead rope can drive the rotation of the driving gear tail 27, and then drive the rotation of the first planetary gear 26, so as to drive the rope winding clutch assembly to realize transmission, and transmit the rotational power provided by the pull bead rope to the connection terminal 24 through the first planetary gear 26 and the rope winding clutch assembly, and complete the rotational drive of the winding connecting rod of the curtain box. Furthermore, the rolling-up operation of the louver curtain is realized. The device uses the first planetary gear 26 structure and the rope winding clutch assembly structure, which improves the transmission efficiency, makes the operation simple and convenient. At the same time, the structure is simple and convenient for assembly and installation.

[0039] Furthermore, the protective cover plate 210 provided on the reel clamping plate 21 is annular, which plays a role in preventing the pull bead rope installed in the pull bead wheel 28 from moving out of the pull bead wheel 28. At the same time, the provided pull bead rope baffle 212 and pull bead rope guide wheel 213 can play a guiding role in pulling the pull bead rope, ensuring that the pull bead wheel 28 can be driven by the pull bead rope to rotate. The structure is simple and convenient for assembly. At the same time, the use effect can be ensured. The provided head notch 290 is aligned with the pull bead rope opening 211, which is convenient for the installation of the pull bead rope, making the installation and assembly simple, the operation convenient, and the use effect good. The provided installation block 291 cooperates with the positioning protrusion 292 at the bottom of the reel clamping plate 21 to realize clamping, ensuring convenient assembly and good use effect.

[0040] Further, a first mounting hole is provided on the left side of the main base 20, and a mounting cavity 201 is provided on the right side. A rope winding clutch driven gear 23 is mounted in the first mounting hole, and a first planetary gear 26 is mounted in the mounting cavity 201. Among them, a limit card 220 is provided on the left side of the rope winding clutch driven gear 23, and the limit card 220 contacts the first mounting hole, which can ensure the stable installation of the rope winding clutch driven gear 23. At the same time, a cylindrical hole 230 is provided on the right side of the rope winding clutch driven gear 23, and the cylindrical hole 230 is connected to the cylindrical structure at the end of the resistance rotor 25. Among them, a mounting slot 202 is provided on the mounting cavity 201, and a mounting strip 214 provided on the reel clamping plate 21 is embedded into the mounting slot 202 to complete the clamping connection between the main base 20 and the reel clamping plate 21. At the same time, the first planetary gear 26 is placed on the left side of the reel clamping plate 21, and the first planetary gear 26 is fixed through the clamping connection between the main base 20 and the reel clamping plate 21. A limit block three 260 is provided on the end face of the planet carrier of the first planetary gear 26, and a limit block four 250 is connected to the end of the resistance rotor 25. Through the contact and clamping between the limit block three 260 and the limit block four 250, the rotation of the first planetary gear 26 can drive the resistance rotor 25 to rotate. A gear connection cylinder 221 is sleeved on the resistance rotor 25, and the gear connection cylinder 221 is connected with a clutch driving block 222. The gear connection cylinder 221 can slide on the resistance rotor 25. Among them, when the limit block one 223 contacts the limit block two 224, the clutch driving block 222 and the rope winding clutch driving gear 22 can rotate synchronously. This structure can realize the clutch action of the driving rope winding clutch assembly and ensure the normal clutch function. A fixing column one 203 installed inside the main base 20 is embedded into a clutch moving slot one 225 on the clutch driving block 222. When the clutch moving block rotates, the fixing column one 203 can move along the clutch moving slot one 225, enabling the clutch moving block to achieve axial movement. When the fixing column one 203 is placed at the end of the clutch moving slot one 225, a set transition notch one 226 can enable the fixing column one 203 to continuously rotate around the clutch moving slot one 225, ensuring the continuous clutch state and thus ensuring the normal clutch function of the rope winding clutch assembly. The setting of this structure enables the rotational power of the pull bead wheel 28 to be transmitted to the connection terminal 24 through the first planetary gear 26 and the rope winding clutch assembly.

[0041] Further, a sun gear connecting driving gear tail 27 of the first planetary gear 26 is provided, and the driving gear tail 27 is connected to the pull bead wheel 28, so that when the pull bead wheel 28 rotates, it can drive the first planetary gear 26 to rotate, thereby realizing the normal transmission function of the first planetary gear 26 and ensuring the transmission effect of rotation. Friction columns 282 are provided on the inner wall of the pull bead rope groove 281 provided on the pull bead wheel 28, which can improve the friction force and the use effect. At the same time, the structure is simple and convenient, facilitating assembly and installation.

[0042] 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 foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A winding rope head structure for a blind, characterized in that: The invention comprises a main base (20) connected to the upper beam of the curtain box, the main base (20) being detachably connected to a reel clamp (21), a rope reel clutch assembly being installed in the main base (20), the rope reel clutch assembly comprising a rope reel clutch driving gear (22) and a rope reel clutch passive gear (23), the rope reel clutch driving gear (22) and the rope reel clutch passive gear (23) being matched and connected, the end of the rope reel clutch passive gear (23) being provided with a connection terminal (24) connected to a reeling connecting rod, the rope reel clutch passive gear (23) being connected to the reeling connecting rod, and the rope reel clutch passive gear (23) being connected to the reeling connecting rod. ) is rotatably connected to a resistance rotor (25), the rope winding clutch driving gear (22) is slidably sleeved with the resistance rotor (25), the other end of the resistance rotor (25) is connected to a first planetary gear (26), the first planetary gear (26) is connected to a driving gear tail (27), the driving gear tail (27) is connected to a bead wheel (28), the first planetary gear (26) and the bead wheel (28) are respectively arranged on the left and right sides of the winding wheel clamp (21), and the outer side of the winding wheel clamp (21) is connected to a head jacket (29).

2. The cord winding head structure for a Venetian blind according to claim 1, characterized in that: The left end of the main base (20) is provided with a first mounting hole (200), the right end of the main base (20) is provided with a mounting cavity (201), the rope winding clutch passive gear (23) is sleeved with the first mounting hole (200), the first planetary gear (26) is placed in the mounting cavity (201), the rope winding clutch passive gear (23) is provided with a limit card (220), the limit card (220) is in contact with the end surface of the first mounting hole (200), the rope winding clutch passive gear (23) is provided with a columnar hole (230), and the end of the resistance rotor (25) is cylindrical and rotatably connected to the columnar hole (230).

3. The cord winding head structure for blinds according to claim 1, characterized in that: The end surface of the rope-winding clutch driving gear (22) is provided with a gear connecting cylinder (221), and the gear connecting cylinder (221) is sleeved with a clutch driving block (222). The end surface of the rope-winding clutch driving gear (22) is provided with a first limiting block (223), and the end surface of the clutch driving block (222) is provided with a second limiting block (224), and the first limiting block (223) corresponds to the second limiting block (224). The inner wall section of the gear connecting cylinder (221) and the middle section of the resistance rotor (25) are both rectangular, and the gear connecting cylinder (221) is slidably sleeved with the middle of the resistance rotor (25).

4. The cord winding head structure for a Venetian blind according to claim 3, characterized in that: The main base (20) is provided with a fixing column (203) at the bottom thereof, the clutch active block (222) is provided with a spiral clutch movable groove (225), a transition notch (226) is provided at the end of the clutch movable groove (225), and the fixing column (203) is placed in the clutch movable groove (225).

5. The cord winding head structure for blinds according to claim 2, characterized in that: The mounting cavity (201) is provided with a mounting slot (202), the reel clamp (21) is provided with a mounting strip (214), the mounting strip (214) is engaged with the mounting slot (202), a limiting block three (260) is provided on the end face of the planetary carrier of the first planetary gear (26), the end of the resistance rotor (25) is connected to a limiting block four (250), and the limiting block three (260) corresponds to the limiting block four (250).

6. The cord winding head structure for blinds according to claim 1, characterized in that: The sun gear in the first planetary gear (26) is connected to the driving gear tail (27); a gear tail card (270) is provided at the end of the driving gear tail (27); the gear tail card (270) is provided with a gear tail card slot (271); the bead wheel (28) is provided with a central groove (280); the central groove (280) has a rectangular cross section; the driving gear tail (27) passes through the winding wheel clamp (21); and the gear tail card slot (271) is card-engaged with the central groove (280).

7. The cord winding head structure for a Venetian blind according to claim 1, characterized in that: The outer side wall of the reel clamp (21) is connected to a protective cover plate (210), the protective cover plate (210) is an annular plate, the bead pulling wheel (28) is placed inside the protective cover plate (210), the protective cover plate (210) is provided with a bead pulling rope opening (211), a bead pulling rope baffle plate (212) is provided above the bead pulling rope opening (211), and a bead pulling rope guide wheel (213) is provided below the bead pulling rope opening (211).

8. The cord-winding head structure for a Venetian blind according to claim 1, characterized in that: The bead pulling wheel (28) is provided with a bead pulling rope groove (281), and the inner side wall of the bead pulling rope groove (281) is provided with a plurality of evenly arranged friction columns (282).

9. The cord winding head structure for a Venetian blind according to claim 7, characterized in that: A head-making notch (290) is provided on the side wall of the head-making outer sleeve (29), and the head-making notch (290) is aligned with the bead-pulling rope opening (211).

10. The cord-winding head structure for a Venetian blind according to claim 1, characterized in that: The inner bottom of the head jacket (29) is provided with a mounting block (291), the bottom of the reel clamp (21) is provided with a positioning protrusion (292), and the mounting block (291) is connected to the positioning protrusion (292).

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