Punching-free roller shutter supporting and rotating structure

Abstract

The invention relates to the technical field of roller shutters, and discloses a punching-free roller shutter supporting and rotating structure which comprises manufacturing heads (2) connected with the two ends of an inner reel pipe (1) and adjustable tail plugs (3). The manufactured head (2) comprises a manufactured head body (21) connected with the inner reelpipe (1), a spring piece (22) arranged on the inner reelpipe (1) in a sleeving mode and providing elastic force and an adjusting piece (23) capable of adjusting pre-stored elastic force of the spring piece (22), a hollow cavity is formed in the manufactured head body (21), the adjusting piece (23) is arranged in the hollow cavity, one end, penetrating through the manufactured head body (21), of the adjusting piece (23) is connected with the spring piece (22), and the spring piece (22) can be driven to rotate to store force. The roller shutter is kept in an elastic force balance state when being rolled; the rotary structure is composed of a pre-stored elastic force type head and an adjustable tail plug, is applied to a roller shutter system to achieve multiple functions of being free of punching and bead pulling, capable of adjusting the width of a roller shutter and the like, and is simple in overall structure and low in cost.

Description

Technical Field

[0001] The invention relates to the technical field of rolling blinds, and in particular to a support and rotation structure for a punch-free rolling blind. Background Art

[0002] There are two common installation methods for roller blinds: punching installation and punch-free installation. Punching installation uses screws to fix the blinds on the walls on both sides of the window edge. This type of roller blind fixing method is complicated and requires the use of additional tools. It also requires drilling holes in the wall, which damages the wall surface. Different walls require different punching installation tools, which makes installation complicated and cumbersome, and it is not easy to disassemble after installation. Punching-free installation is becoming more and more popular in the market because it does not damage the wall and is easy to install.

[0003] Most of the punch-free roller blinds on the market cannot adjust the width and require a pull cord or a pull bead to roll up. For example, the application number 202420835325.0 is a quick punch-free installation roller blind, where a pull cord or a pull bead is hung on the roller blind cover. It is not simple and beautiful, has potential safety hazards, and the rolling and pulling operation is somewhat inconvenient. Most of the existing technologies use motors, which take up a large installation space and are not suitable for lightweight roller blinds, affecting the appearance and are costly. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a punch-free rolling shutter support convolute structure, which is composed of a pre-stored elastic head and an adjustable tail plug. It is applied to the rolling shutter system to realize multiple functions such as punch-free, bead-free, and adjustable rolling shutter width. The overall structure is simple and the cost is low.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A punch-free rolling curtain support and rotation structure, including a control head connected to both ends of an inner rolling tube and an adjustable tail plug; the control head includes a control head body connected to the inner rolling tube, a spring member sleeved on the inner rolling tube and providing elastic force, and an adjusting member that can adjust the spring member to pre-store elastic force, a hollow cavity is provided in the control head body, the adjusting member is provided in the hollow cavity and one end of the adjusting member passes through the control head body and is connected to the spring member, and can drive the spring member to rotate to store force, so as to keep the rolling curtain in an elastic balance state when the rolling curtain is rolled up.

[0007] Preferably, the spring component includes a rotating tube arranged on the head body, a fixed tube arranged on the inner rolling tube and a first spring arranged between the rotating tube and the fixed tube, the rotating tube is provided with a fixing protrusion to fix one end of the first spring, and the fixed tube is tightly clamped on the inner rolling tube and fixes the other end of the first spring.

[0008] Preferably, the adjusting member includes a rotating rod arranged in the hollow cavity, the rotating rod is provided with a first worm gear and a second worm gear spaced apart along its length direction, the head body is provided with a first through hole and a first through groove, the first worm gear is meshed with a worm, and the other end of the worm gear passes through the first through hole; the inner cavity wall of the rotating tube is provided with internal teeth, and one end of the second worm gear passes through the first through groove and meshes with the internal teeth, so as to drive the rotating rod to rotate by rotating the worm, thereby driving the rotating tube to rotate, and realizing driving the first spring to rotate and store force.

[0009] Preferably, the two ends of the rotating rod are respectively connected with a rod handle and a rod sleeve, a head end plate is provided at the end of the head body, the rod handle is mounted on the head end plate, an axial hole and a worm fixing groove are provided on the side of the rod handle facing away from the head end plate, a slot is provided on the rod sleeve, one end of the rotating rod passes through the axial hole, the other end of the rotating rod is inserted into the slot, and the worm is clamped in the worm fixing groove, so as to respectively install the rotating rod and the worm;

[0010] The outer periphery of the rod sleeve is provided with a clamping protrusion, and the head body is provided with a clamping groove, and the clamping protrusion is clamped in the clamping groove to fix the rod sleeve.

[0011] Preferably, one end of the worm that passes through the first through hole is provided with a slot, a cross slot or a hexagonal slot, so as to drive the worm to rotate by using a corresponding screwdriver.

[0012] Preferably, it also includes a card point positioning member, an outer card point tube for connecting the rolling curtain is provided on the outer sleeve of the inner rolling tube, a head plug for fixing one end of the outer card point tube is provided on the head body, the inner wall of the head plug is provided with a plurality of positioning grooves arranged along its inner circumference and a blocking wall arranged between the two positioning grooves, the card point positioning member includes a card point portion, a pressing portion and a connecting portion for connecting the two, when using the rolling curtain, the rolling curtain is pulled until the card point portion is inserted into the positioning groove, and the pulled rolling curtain is in a fixed state at this time; when rolling up the rolling curtain, the rolling curtain is pulled again until the card point portion is located at the blocking wall, and the rolling curtain is released at this time, and is rolled up and returned to the initial balanced state under the elastic force of the spring member.

[0013] Preferably, a slide groove is provided on the head end plate, the push part is slidably arranged in the slide groove, at least two groups of blocking grooves are provided on the side wall of the slide groove, blocking protrusions matching the blocking grooves are provided on both sides of the push part, and a groove for accommodating the thumb pulp is provided on the push part, so that the thumb pulp can press the groove to apply force, driving the blocking protrusion to be located in any blocking groove;

[0014] A second through hole is provided on the head body. When the blocking protrusion is located in the blocking groove on the side away from the head body, the card point passes through the second through hole, and the rolling curtain can be pulled and rolled up at this time; when the blocking protrusion is located in the blocking groove on the side close to the head body, the card point passes through the second through hole, and the first spring can be rotated to store force.

[0015] Preferably, the tail plug includes a tail end plate, a tail plug tube and a tail plug portion which is sleeved on the tail plug tube and used to fix the other end of the outer rolling tube. A length adjustment member is provided between the tail end plate and the tail plug tube to adjust the distance between the tail end plate and the tail plug portion, thereby achieving adjustment of the width of the roller blind.

[0016] Preferably, the length adjusting member includes a threaded rod fixedly connected to the tail end plate, a nut head threadedly connected to the threaded rod, and a second spring arranged between the threaded rod and the tail plug tube. The nut head is connected to the tail plug tube, and the threaded rod is driven to rotate by rotating the tail end plate, so that the tail end plate moves away from or closer to the tail plug tube; the second spring provides elastic force.

[0017] Preferably, a first bearing is provided between the head plug portion and the head making body, and a second bearing is provided between the tail plug portion and the tail plug tube, so as to reduce the friction force of the rotation of the outer winding tube.

[0018] Preferably, the head end plate and the tail end plate are provided with rubber pads and / or double-sided tape to increase friction so that the roller blind is firmly fixed.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The rotary structure is composed of a pre-stored elastic brake head and an adjustable tail plug. The pre-stored elastic brake head drives the spring part to rotate through the adjusting part to store force so as to keep the roller blind in a state of elastic balance when it is rolled up. The roller blind is easy to pull and roll up. The adjustable tail plug can quickly adjust the distance between the fixed points on both sides of the roller blind and enhance the applicable range of the curtain width. It is applied to the roller blind system to realize multiple functions such as no punching, no beads, and adjustable roller blind width. The overall structure is simple and the cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of the punch-free roller shutter support and rotation structure.

[0022] Figure 2 This is a cross-sectional view of the support and rotation structure of the punch-free roller blind.

[0023] Figure 3 This is a schematic diagram of the split structure of the punch-free roller shutter support rotary structure.

[0024] Figure 4 This is a schematic diagram of the local structure of the support and rotation structure of the punch-free roller shutter.

[0025] Figure 5 This is a cross-sectional view of the head in the punch-free roller blind support and rotary structure.

[0026] Figure 6 This is a schematic diagram of the split structure of the head body and the adjusting part in the punch-free rolling curtain support and rotation structure.

[0027] Figure 7 This is a schematic diagram of the local structure of the head in the perforated roller shutter support and rotary structure.

[0028] Figure 8 This is a schematic diagram of the structure of the adjusting member in the support and rotation structure of the punch-free rolling curtain.

[0029] Fig. 9 This is a schematic diagram of the structure of the adjusting member and the rotating tube in the punch-free roller blind support rotary structure.

[0030] Fig.10 This is a structural schematic diagram of the head plug part and the card point part in the support and rotation structure of the punch-free roller blind.

[0031] Fig.11 This is a schematic diagram of the structure of the tail plug in the perforated roller shutter support rotary structure.

[0032] Fig.12 This is a cross-sectional view of the tail plug in the punch-free roller curtain support and rotation structure.

[0033] Fig.13 This is a schematic diagram of the split structure of the tail plug in the perforated roller shutter support and rotary structure.

[0034] In the accompanying drawings: 1-inner roll tube, 2-head, 21-head body, 211-first through hole, 212-first through slot, 213-head end plate, 2131-slide slot, 2132-blocking slot, 214-slot, 215-second through hole, 22-spring member, 221-rotating tube, 222-fixing tube, 223-first spring, 224-fixing protrusion, 225-inner teeth, 23-adjusting member, 231-rotating rod, 232-first worm gear, 233-second worm gear, 234-worm, 235-rod handle, 2351-shaft hole, 235 2-worm fixing groove, 236-rod sleeve, 2361-slot, 2362-clamping protrusion, 3-tail plug, 31-tail end plate, 32-tail plug tube, 33-tail plug part, 34-length adjustment member, 341-threaded rod, 342-nut head, 343-second spring, 4-clamping point positioning member, 41-clamping point part, 42-pressing part, 421-blocking protrusion, 422-groove, 43-connecting part, 5-outer coil tube, 6-head plug part, 61-positioning groove, 62-blocking wall, 7-first bearing, 8-second bearing, 9-rubber pad and / or double-sided tape. DETAILED DESCRIPTION

[0035] Embodiment 1: A preferred embodiment of the present invention provides a punch-free roller shutter support and rotation structure, comprising a head 2 and an adjustable tail plug 3 connected to both ends of an inner rolling tube 1; the head 2 comprises a head body 21 connected to the inner rolling tube 1, a spring member 22 sleeved on the inner rolling tube 1 and providing elastic force, and an adjusting member 23 for pre-storing elastic force of the adjustable spring member 22, a hollow cavity is provided in the head body 21, the adjusting member 23 is provided in the hollow cavity and one end of the adjusting member 23 that passes through the head body 21 is connected to the spring member 22, and can drive the spring member 22 to rotate to store force, so as to keep the roller shutter in a state of elastic balance when the roller shutter is rolled up.

[0036] This convolute structure can not only efficiently operate to pre-store elastic force on the spring member 22, but also can adjust the initial elastic force of the spring member 22 without disassembling any components during the use of the roller blind product, thereby realizing a bead-free design, and the roller blind pulling and winding operations are simple and low-cost.

[0037] The spring component 22 includes a rotating tube 221 arranged on the head body 21, a fixed tube 222 arranged on the inner roll tube 1, and a first spring 223 arranged between the rotating tube 221 and the fixed tube 222. The rotating tube 221 is provided with a fixing protrusion 224 to fix one end of the first spring 223. The fixed tube 222 is tightly clamped on the inner roll tube 1 and fixes the other end of the first spring 223. The two cooperate to fix the first spring 223 and pre-store elastic force on the first spring 223 under the action of the adjusting component 23.

[0038] Embodiment 2: A preferred embodiment of the present invention provides a punch-free roller blind support and rotation structure, which differs from the above-mentioned embodiment only in that: the adjusting member 23 includes a rotating rod 231 arranged in a hollow cavity, the rotating rod 231 is provided with a first worm gear 232 and a second worm gear 233 spaced apart along its length direction, the head body 21 is provided with a first through hole 211 and a first through groove 212, the first worm gear 232 is meshed with a worm 234, and the other end of the worm 234 passes through the first through hole 211; the inner cavity wall of the rotating tube 221 is provided with internal teeth 225, and one end of the second worm gear 233 passes through the first through groove 212 and meshes with the internal teeth 225, so as to drive the rotating rod 231 to rotate by rotating the worm gear 234, thereby driving the rotating tube 221 to rotate, and realizing driving the first spring 223 to rotate and store force.

[0039] One end of the worm 234 passing through the first through hole 211 is provided with a slot, a cross slot or a hexagonal slot, so as to drive the worm 234 to rotate by using a corresponding screwdriver.

[0040] The two ends of the rotating rod 231 are connected with a rod handle 235 and a rod sleeve 236 respectively. The end of the head body 21 is provided with a head end plate 213, and the rod handle 235 is installed on the head end plate 213. The side of the rod handle 235 facing away from the head end plate 213 is provided with an axial hole 2351 and a worm fixing groove 2352. The rod sleeve 236 is provided with a slot 2361. One end of the rotating rod 231 passes through the axial hole 2351, and the other end of the rotating rod 231 is inserted into the slot 2361. The worm 234 is clamped in the worm fixing groove 2352, so as to respectively install the rotating rod 231 and the worm 234;

[0041] The rod sleeve 236 is provided with a clamping protrusion 2362 on its outer periphery, and the head body 21 is provided with a clamping groove 214 , and the clamping protrusion 2362 is clamped in the clamping groove 214 to fix the rod sleeve 236 .

[0042] Embodiment 3: A preferred embodiment of the present invention provides a punch-free roller blind support and rotation structure, which differs from the above-mentioned embodiments only in that: it also includes a card point positioning member 4, an outer roller tube 5 for connecting the roller blind is provided on the inner roller tube 1, and a head plug 6 for fixing one end of the outer roller tube 5 is provided on the head body 21. The inner wall of the head plug 6 is provided with a plurality of positioning grooves 61 arranged along its inner circumference and a blocking wall 62 arranged between the two positioning grooves 61. The card point positioning member 4 includes a card point portion 41, a pressing portion 42 and a connecting portion 43 for connecting the two. When the roller blind is used, the roller blind is pulled until the card point portion 41 is inserted into the positioning groove 61. At this time, the pulled roller blind is in a fixed state; when the roller blind is rolled up, the roller blind is pulled again until the card point portion 41 is located at the blocking wall 62. At this time, the roller blind is released, and is rolled up and returned to the initial equilibrium state under the elastic force of the spring member 22.

[0043] The head end plate 213 is provided with a slide groove 2131, and the push portion 42 is slidably arranged in the slide groove 2131. At least two groups of blocking grooves 2132 are arranged on the side wall of the slide groove 2131. Blocking protrusions 421 matching the blocking grooves 2132 are arranged on both sides of the push portion 42, and a groove 422 for accommodating the thumb pulp is provided on the push portion 42, so that the thumb pulp can press in the groove 422 to apply force, so as to drive the blocking protrusion 421 to be located in any blocking groove 2132;

[0044] A second through hole 215 is provided on the head body 21. When the blocking protrusion 421 is located in the blocking groove 2132 on the side away from the head body 21, the card point portion 41 passes through the second through hole 215, and the rolling curtain can be pulled and rolled up at this time; when the blocking protrusion 421 is located in the blocking groove 2132 on the side close to the head body 21, the card point portion 41 passes through the second through hole 215, and the first spring 223 can be rotated and force can be stored.

[0045] Embodiment 4: A preferred embodiment of the present invention provides a punch-free roller blind support and rotation structure, which differs from the above-mentioned embodiments only in that the tail plug 3 includes a tail end plate 31, a tail plug tube 32 and a tail plug portion 33 which is sleeved on the tail plug tube 32 and used to fix the other end of the outer rolling tube 5, and a length adjustment member 34 is provided between the tail end plate 31 and the tail plug tube 32 to adjust the distance between the tail end plate 31 and the tail plug portion 33, thereby realizing the adjustment of the width of the roller blind.

[0046] The length adjusting member 34 includes a threaded rod 341 fixedly connected to the tail end plate 31, a nut head 342 threadedly connected to the threaded rod 341, and a second spring 343 arranged between the threaded rod 341 and the tail plug tube 32. The nut head 342 is connected to the tail plug tube 32, and the threaded rod 341 is driven to rotate by rotating the tail end plate 31, so that the tail end plate 31 is moved away from or close to the tail plug tube 32; the second spring 343 provides elastic force.

[0047] A first bearing 7 is provided between the head plug portion 6 and the head body 21 , and a second bearing 8 is provided between the tail plug portion 33 and the tail plug tube 32 , so as to reduce the friction force of the outer winding tube 5 when rotating.

[0048] Embodiment 5: A preferred embodiment of the present invention provides a punch-free roller blind support and rotation structure, which differs from the above embodiments only in that rubber pads and / or double-sided tape 9 are provided on the head end plate 213 and the tail end plate 31 to increase friction so that the roller blind is firmly fixed.

[0049] The rotary structure is composed of a pre-stored elastic force brake head 2 and an adjustable tail plug 3. The pre-stored elastic force brake head 2 drives the spring part 22 to rotate through the adjusting part 23 to store force so as to keep the roller blind in a state of elastic balance when being rolled up. The roller blind is easy to pull and roll up. The adjustable tail plug 3 can quickly adjust the distance between the fixed points on both sides of the roller blind and enhance the applicable range of the curtain width. It is applied to the roller blind system to realize multiple functions such as no punching, no beads, and adjustable roller blind width. The overall structure is simple and the cost is low.

[0050] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A punch-free rolling curtain support and rotation structure, comprising a control head (2) connected to both ends of an inner rolling tube (1) and an adjustable tail plug (3); characterized in that: The control head (2) comprises a control head body (21) connected to the inner rolling tube (1), a spring member (22) sleeved on the inner rolling tube (1) and providing elastic force, and an adjusting member (23) capable of adjusting the spring member (22) to pre-store elastic force. A hollow cavity is provided in the control head body (21), and the adjusting member (23) is arranged in the hollow cavity and one end of the adjusting member (23) that passes through the control head body (21) is connected to the spring member (22) and can drive the spring member (22) to rotate to store force, so as to keep the rolling curtain in an elastic balance state when the rolling curtain is rolled up.

2. The punch-free roller blind support and rotation structure according to claim 1, characterized in that: The spring member (22) comprises a rotating tube (221) arranged on the head body (21), a fixed tube (222) arranged on the inner roll tube (1), and a first spring (223) arranged between the rotating tube (221) and the fixed tube (222); the rotating tube (221) is provided with a fixing protrusion (224) for fixing one end of the first spring (223); the fixed tube (222) is tightly clamped on the inner roll tube (1) and fixes the other end of the first spring (223).

3. The punch-free roller blind support and rotation structure according to claim 2, characterized in that: The adjusting member (23) comprises a rotating rod (231) arranged in the hollow cavity, the rotating rod (231) is provided with a first worm gear (232) and a second worm gear (233) spaced apart along the length direction thereof, the head body (21) is provided with a first through hole (211) and a first through slot (212), the first worm gear (232) is meshed with a worm (234), and the other end of the worm gear (234) passes through the first through hole (211); the inner cavity wall of the rotating tube (221) is provided with internal teeth (225), one end of the second worm gear (233) passing through the first through slot (212) is meshed with the internal teeth (225), so that the rotating rod (231) is driven to rotate by rotating the worm gear (234), thereby driving the rotating tube (221) to rotate, and realizing driving the first spring (223) to rotate and store force.

4. The punch-free roller blind support and rotation structure according to claim 3, characterized in that: The two ends of the rotating rod (231) are respectively connected with a rod handle (235) and a rod sleeve (236); a head end plate (213) is provided at the end of the head body (21); the rod handle (235) is mounted on the head end plate (213); an axial hole (2351) and a worm fixing groove (2352) are provided on the side of the rod handle (235) facing away from the head end plate (213); a slot (2361) is provided on the rod sleeve (236); one end of the rotating rod (231) passes through the axial hole (2351); the other end of the rotating rod (231) is inserted into the slot (2361); the worm (234) is clamped in the worm fixing groove (2352), so as to respectively install the rotating rod (231) and the worm (234); The outer periphery of the rod sleeve (236) is provided with a clamping protrusion (2362), and the head body (21) is provided with a clamping groove (214), and the clamping protrusion (2362) is clamped in the clamping groove (214) to fix the rod sleeve (236); One end of the worm (234) passing through the first through hole (211) is provided with a slot, a cross slot or a hexagonal slot, so as to drive the worm (234) to rotate by using a corresponding screwdriver.

5. The punch-free rolling curtain support and rotation structure according to claim 4, characterized in that: It also comprises a card point positioning member (4), the inner rolling tube (1) is provided with an outer rolling tube (5) for connecting the rolling curtain, the head body (21) is provided with a head plug (6) for fixing one end of the outer rolling tube (5), the inner wall of the head plug (6) is provided with a plurality of positioning grooves (61) arranged along the inner circumference thereof and a blocking wall (62) arranged between two positioning grooves (61), the card point positioning member (4) comprises a card point portion (41), a pressing portion (42) and a connecting portion (43) for connecting the two, when the rolling curtain is used, the rolling curtain is pulled until the card point portion (41) is inserted into the positioning groove (61), at which time the pulled rolling curtain is in a fixed state; when the rolling curtain is rolled up, the rolling curtain is pulled up again until the card point portion (41) is located at the blocking wall (62), at which time the rolling curtain is released, and is rolled up under the elastic force of the spring member (22) and returns to an initial equilibrium state.

6. The punch-free rolling curtain support and rotation structure according to claim 5, characterized in that: The head end plate (213) is provided with a slide groove (2131), the push portion (42) is slidably arranged in the slide groove (2131), at least two groups of blocking grooves (2132) are provided on the side wall of the slide groove (2131), blocking protrusions (421) matching the blocking grooves (2132) are provided on both sides of the push portion (42), and a groove (422) for accommodating the thumb pulp is provided on the push portion (42), so that the thumb pulp can press in the groove (422) to apply force, thereby driving the blocking protrusion (421) to be located in any blocking groove (2132); A second through hole (215) is provided on the head body (21); when the blocking protrusion (421) is located in the blocking groove (2132) on the side away from the head body (21), the clamping point portion (41) passes through the second through hole (215), and the rolling curtain can be pulled and rolled up at this time; when the blocking protrusion (421) is located in the blocking groove (2132) on the side close to the head body (21), the clamping point portion (41) passes through the second through hole (215), and the first spring (223) can be rotated to store force.

7. The punch-free rolling curtain support and rotation structure according to claim 6, characterized in that: The head end plate (213) and the tail end plate (31) are provided with rubber pads and / or double-sided adhesive tape (9) to increase friction and securely fix the rolling curtain.

8. A punch-free roller blind support and rotation structure according to any one of claims 1 to 7, characterized in that: The tail plug (3) comprises a tail end plate (31), a tail plug tube (32), and a tail plug portion (33) sleeved on the tail plug tube (32) and used to fix the other end of the outer rolling tube (5); a length adjustment member (34) is provided between the tail end plate (31) and the tail plug tube (32) to adjust the distance between the tail end plate (31) and the tail plug portion (33), thereby realizing adjustment of the width of the rolling curtain.

9. The punch-free rolling curtain support and rotation structure according to claim 8, characterized in that: The length adjusting member (34) comprises a threaded rod (341) fixedly connected to the tail end plate (31), a nut head (342) threadedly connected to the threaded rod (341), and a second spring (343) arranged between the threaded rod (341) and the tail plug tube (32); the nut head (342) is connected to the tail plug tube (32), and the threaded rod (341) is driven to rotate by rotating the tail end plate (31), so that the tail end plate (31) is moved away from or close to the tail plug tube (32); the second spring (343) provides elastic force.

10. The punch-free rolling curtain support and rotation structure according to claim 9, characterized in that: A first bearing (7) is provided between the head plug part (6) and the head body (21), and a second bearing (8) is provided between the tail plug part (33) and the tail plug tube (32) to reduce the friction force of the outer winding tube (5) when rotating.

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