CN112012641A

CN112012641A - Built-in shutter opening and closing mechanism with self-locking function and built-in shutter system

Info

Publication number: CN112012641A
Application number: CN202010895166.XA
Authority: CN
Inventors: 邓燕翔; 王龙洋; 宋静静
Original assignee: Wuxi Yiyong Technology Co ltd
Current assignee: Wuxi Yiyong Technology Co ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2020-12-01

Abstract

The invention relates to the technical field of shutters, and discloses a built-in shutter opening and closing mechanism with a self-locking function, which comprises a profile frame column, a control switch assembly and an external control handle, wherein the control switch assembly is arranged inside a frame column cavity of the profile frame column in a sliding manner, the external control handle is arranged outside the profile frame column in a sliding manner and is connected with the control switch assembly, the external control handle is used for driving the control switch assembly to lift and slide in the frame column cavity along the length extension direction of the profile frame column, a self-locking mechanism is arranged between the side wall surface of the control switch assembly and the frame column cavity, and when the self-locking mechanism is locked, the control switch assembly and the profile frame column cannot generate relative displacement along the length extension direction of the profile frame column. The position of the control switch assembly can be limited and locked through the structural arrangement. Therefore, the condition that the internal blind curtain is repeatedly violently folded and unfolded due to the action of external force in the transportation and installation processes can be prevented, and the damage to the blind curtain or the connecting rope can be further prevented.

Description

Built-in shutter opening and closing mechanism with self-locking function and built-in shutter system

Technical Field

The invention relates to the technical field of shutters, in particular to a built-in shutter opening and closing mechanism with a self-locking function and a built-in shutter system.

Background

The hollow glass louver is a traditional sun-shading product, which not only saves the use space, but also achieves the sun-shading purpose, and also has the functions of heat preservation and noise prevention, and simultaneously gives novel vision to buildings and rooms. The hollow glass louver is a new energy-saving product and is composed of a frame body, two glass cover plates, a louver curtain arranged between the two glass cover plates and a control device for controlling the lifting and turning of the louver curtain. The lifting control device comprises a lifting chute and a lifting switch; the lifting switch is arranged in the lifting chute to slide, and controls the lifting of the blind by connecting the ladder rope, and the lifting chute is formed by an inner cavity of a window frame section.

But because the easy emergence leads to the blind to receive and release in the window violently repeatedly owing to external force in transportation and installation, lead to connecting the ladder rope to appear twining, knot or cracked condition easily from this, and lead to the blind to accomplish the unable normal use's after the installation condition, and then increase the cost of maintenance in later stage.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a built-in shutter switch mechanism with a self-locking function and a built-in shutter system.

In order to achieve the above purpose, the invention provides the following technical scheme:

a built-in shutter switch mechanism with self-locking function comprises a section frame column, a control switch component and an external control handle, wherein the control switch component is arranged inside a frame column cavity of the section frame column in a sliding manner, the external control handle is arranged outside the section frame column in a sliding manner and is connected with the control switch component, the external control handle is used for driving the control switch component to lift and slide in the frame column cavity along the extension direction of the section frame column length, and the shutter switch mechanism is characterized in that,

the self-locking mechanism is arranged between the side wall surface of the control switch assembly and the frame column cavity and comprises a convex part lock tongue and a concave part bayonet, the convex part lock tongue is driven to penetrate into the concave part bayonet or be pulled out of the concave part bayonet through the lifting of the control switch assembly, and when the convex part lock tongue is clamped with the concave part bayonet, the relative displacement along the length extension direction of the section frame column cannot occur between the control switch assembly and the section frame column. The position of the control switch assembly can be limited and locked through the structural arrangement, and repeated violent retraction and release of the internal venetian blinds in the transportation and installation processes can be prevented.

In the invention, further, magnets are arranged on the control switch assembly and the external control handle, the magnetic poles of the magnets on the control switch assembly or the external control handle face the same direction, the connecting line of two magnetic pole ends of any one magnet is consistent with the lifting direction of the control switch assembly, and a magnetic pole switching device is arranged on the external control handle and used for changing the polarity of the magnetic pole on one side, close to the control switch assembly, of the magnet on the external control handle. Through the arrangement, the locking and unlocking of the control switch component can be adjusted by utilizing the conversion of the magnetic force between different magnetic poles of the magnet.

In the invention, further, a magnet is fixedly arranged on the control switch assembly, a magnetizing block is fixedly arranged on the external control handle, a switch height adjusting part is arranged on the control switch assembly and used for applying a first elastic pressure to the control switch assembly to enable the control switch assembly to descend for a first distance, and the magnetic force of the magnet and the magnetizing block in a suction state is greater than the first elastic pressure. Through the arrangement, the locking and unlocking of the control switch assembly can be adjusted by utilizing the magnetic force between the magnet and the magnetizing block and matching with the switch height adjusting part.

In the invention, further, the switch height adjusting part comprises a lifting main body, a sliding wheel and a group of telescopic springs, the sliding wheel is rotatably arranged on both sides of the lifting main body, the telescopic springs are connected and arranged between the lifting main body and the control switch assembly, and the telescopic springs are positioned in the center of the lifting main body. The switch height adjusting part is only provided with a group of telescopic springs in the center position, thereby improving the efficiency of product assembly and reducing the manufacturing cost of the product.

In the invention, further, the switch height adjusting part comprises a lifting main body, a group of sliding wheels and at least a plurality of groups of telescopic springs, the sliding wheels are rotatably arranged in the middle of the lifting main body, and the plurality of groups of telescopic springs are uniformly distributed between the lifting main body and the control switch assembly. The switch height adjusting part is uniformly provided with a plurality of groups of telescopic springs, so that the stability of the lifting main body during up-and-down lifting action can be improved.

In the invention, further, the convex part lock tongue comprises at least one group of lock teeth, the lock teeth comprise a clamping tip, the concave part bayonet is a locking toothed chain matched with the lock teeth in shape, and the direction of the clamping tip is perpendicular to the lifting direction of the control switch assembly. The arrangement enables the direction of the convex part lock tongue penetrating into or drawing out of the concave part bayonet to be vertical to the lifting direction of the switch assembly, so that the locking effect of the convex part lock tongue when the convex part lock tongue is locked in the concave part bayonet can be improved, and the convex part lock tongue is prevented from being separated from the concave part bayonet in a locking state.

In the invention, further, the section frame column comprises a side wall frame column, a locking rib is arranged inside the side wall frame column along the length direction of the side wall frame column, a locking notch with an upward opening is formed in the locking rib, and a locking function is realized when the convex lock tongue penetrates into the locking notch. The locking structure is simple and convenient to process and manufacture.

In the invention, further, one end of the locking tooth, which is close to the bottom of the control switch assembly, is provided with a slide-in tip, and one side of the locking notch of the locking toothed chain, which is close to the upper surface of the locking toothed chain, is provided with a guide-in inclined plane. Through setting up leading-in inclined plane can be convenient for the convex part spring bolt and penetrate inside the concave part bayonet socket smoothly, realize the locking function.

Meanwhile, the invention is also provided with a built-in louver system comprising any one of the built-in louver switch mechanism with the self-locking function, wherein the control switch component comprises a page turning switch and a lifting switch, the page turning switch is connected with a page turning ladder rope, and the lifting switch is connected with the lifting ladder rope. Through setting up two sets of control switches can realize respectively turning over the independent control of page or leaf and two kinds of functions of going up and down, it is more convenient to use.

Meanwhile, the invention is also provided with a built-in louver system comprising any one of the built-in louver switch mechanism with the self-locking function, the control switch assembly is arranged into an integrated starting switch, the starting switch comprises a page turning control part and a lifting control part, the page turning control part is connected with a clutch mechanism through a transmission rope, the clutch mechanism comprises a page turning wheel, an expansion spring, a flat shaft connector and a setting seat, the flat shaft connector is sleeved on the page turning wheel, the expansion spring is positioned between the page turning wheel and the flat shaft connector, a limiting bump is arranged in the setting seat, a blocking piece of the flat shaft connector is positioned between two groups of blocking feet of the expansion spring, and when the expansion spring is in a loose state, the expansion spring is separated from the page turning wheel. According to the scheme, two functions of lifting and page turning are integrated on the switch assembly and are matched with the clutch mechanism to realize adjustment of the page turning and lifting functions, so that the number of parts in the louver system can be reduced, and the use life of the page turning ladder rope can be prolonged by arranging the clutch mechanism.

Compared with the prior art, the invention has the beneficial effects that:

the device of the invention limits the relative movement of the control switch component in the frame column cavity along the length extension direction thereof by arranging the self-locking mechanism between the side wall surface of the control switch component and the frame column cavity so as to realize the locking of the position of the control switch component.

In addition, magnets are arranged on the control switch assembly and the external control handle, and the lifting of the switch assembly is controlled by attraction and repulsion between magnetic poles of the magnets, so that the locking and the opening of the self-locking mechanism are realized, a switch height adjusting part arranged on the control switch assembly can be omitted, the structure complexity can be simplified, and the cost is saved.

Meanwhile, the convex part spring bolt is set as a locking tooth, the concave part bayonet is set as a locking toothed chain, the direction of the clamping tip end of the locking tooth is perpendicular to the lifting direction of the control switch assembly, and meanwhile, the gap between one side of the control switch assembly, which is far away from the locking tooth, and the inner side wall of the frame column cavity is smaller than the meshing depth when the locking tooth is meshed with the locking toothed chain, so that the locking strength of the self-locking mechanism during locking can be improved, and the locking effect is improved.

Drawings

Fig. 1 is an exploded schematic view of a built-in shutter opening and closing mechanism according to a second embodiment.

Fig. 2 is an exploded view of the control switch assembly with the switch height adjusting part installed.

Fig. 3 is a schematic structural view of a switch height adjusting portion.

Fig. 4 is a schematic structural view of another switch height adjusting part.

Fig. 5 is an exploded schematic view of a clutch mechanism according to a fourth embodiment.

FIG. 6 is a schematic structural diagram of an external control handle with a magnetic pole switching device according to a first embodiment.

Fig. 7 is a schematic structural view of the locking tooth chain and the locking teeth in a locking state according to the first embodiment.

Fig. 8 is an enlarged schematic view of a portion a in fig. 7.

Fig. 9 is an enlarged structural schematic view of a lock tooth in the first embodiment.

Fig. 10 is an enlarged schematic structural view of the locking toothed chain according to the first embodiment.

FIG. 11 is a schematic view of the connection and transmission structure between the components in the fourth embodiment.

FIG. 12 is a schematic view of the connection and transmission structure between the components in the third embodiment.

In the drawings: 10. a section frame column; 11. an upper cover plate; 12. locking ribs; 13. locking the notch; 14. locking the toothed chain; 141. leading in an inclined plane; 21. an external control handle; 22. switching the support lug; 221. a limiting clamping groove; 23. a magnet; 24. switching a knob; 241. a limiting strip; 3. a control switch assembly; 31. a convex part lock tongue; 310. clamping the tip end; 311. sliding the tip into the groove; 32. a switch height adjusting section; 320. a lifting body; 321. a sliding wheel; 322. a tension spring; 33. a lifting switch; 34. a page turning switch; 35. starting a switch; 4. a corner assembly; 41. placing a seat; 411. a limiting bump; 42. page turning wheels; 43. a collapsible spring; 431. blocking feet; 44. a flat shaft connector; 441. a catch piece; 45. a lifting pulley; 46. a diverting pulley; 47. a fixed pulley; 5. a wire frame; 6. connecting the flat shaft; 7. a lift cord; 8. a page turning ladder rope.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Referring to fig. 6 to 10, a preferred embodiment of the present invention provides a built-in shutter opening and closing mechanism with a self-locking function, which includes a profile frame column 10, a control switch component 3 and an external control handle 21, wherein the control switch component 3 is slidably disposed inside a frame column cavity of the profile frame column 10, the external control handle 21 is slidably disposed outside the profile frame column 10 and connected to the control switch component 3, and the external control handle 21 is used for driving the control switch component 3 to ascend and descend and to slide inside the frame column cavity along the extension direction of the length of the profile frame column 10;

a self-locking mechanism is arranged between the side wall surface of the control switch component 3 and the frame column cavity, the self-locking mechanism comprises a convex part lock tongue 31 and a concave part bayonet, the convex part lock tongue 31 is driven to penetrate into the concave part bayonet or to be drawn out and separated from the concave part bayonet through the lifting of the control switch component 3, and when the convex part lock tongue 31 is clamped with the concave part bayonet, the relative displacement along the length extending direction of the section frame column 10 cannot occur between the control switch component 3 and the section frame column 10.

The control switch component 3 and the external control handle 21 are both provided with a magnet 23, the magnet 23 is a permanent magnet 23 in the prior art, and the magnet 23 has two natural magnetic poles, and when any two groups of magnetic poles are close to each other, the same poles repel each other and the opposite poles attract each other. The magnetic poles of all the magnets 23 on the control switch assembly 3 or all the magnets 23 on the external control handle 21 face the same direction, so that the magnetic force between the control switch assembly 3 and the external control handle 21 when approaching can be guaranteed to be a force (both being a repulsive force or both being an attractive force) of one nature, the connecting line of the two magnetic pole ends of any one magnet 23 is consistent with the lifting direction of the control switch assembly 3, the arrangement can guarantee that the two magnetic pole positions of the magnet 23 are in a state that one end is close to and the other end is far away, and therefore the value of the attractive force or the repulsive force between the control switch assembly 3 and the external control handle 21 can be guaranteed to be the maximum. The external control handle 21 is provided with a magnetic pole switching device for changing the polarity of the magnetic pole at the side of the magnet 23 arranged on the external control handle 21 close to the control switch component 3.

As shown in fig. 6, the magnetic pole switching device includes two switching lugs 22 and a switching knob 24, the magnet 23 is rotatably disposed between the two switching lugs 22, and the magnet 23 can slide repeatedly along the rotating shaft direction, the two switching lugs 22 are fixedly disposed on the external control handle 21, the switching knob 24 is fixed on the end of the rotating shaft of the magnet 23, and the orientation of the magnetic pole of the magnet 23 is changed by rotating the switching knob 24. The switching knob 24 comprises an insertion sleeve and a limiting strip 241, the limiting strip 241 is fixedly arranged at one side end part, close to the switching support lug 22, of the switching knob 24, the rotating shaft of the magnet 23 is fixedly arranged in the insertion sleeve in a penetrating mode, and a limiting clamping groove 221 matched with the limiting strip 241 can also be arranged on the switching support lug 22. The position angle of the magnet 23 is prevented from being changed by the cooperation between the position restricting bar 241 and the position restricting slot 221 to improve the position restricting ability.

As shown in fig. 7-10, the protruding lock tongue 31 includes at least one set of lock teeth, and the number of the lock teeth can be determined according to the weight of the blind to be locked. Each group of locking teeth is fixedly arranged on the side wall of the control switch component 3, each locking tooth comprises a clamping tip 310, a concave part bayonet is arranged as a locking toothed chain 14 matched with the shape of the locking tooth, the locking function is realized when the clamping tip 310 penetrates into a notch of the locking toothed chain 14, and the direction of the clamping tip 310 is vertical to the lifting direction of the control switch component 3. This arrangement prevents the snap tip 310 from falling out of the notch of the locking chain 14, improving the locking effect. In order to further improve the anti-falling performance, it is necessary to ensure that the clearance (i.e., L in fig. 8) between the side of the control switch assembly 3 away from the lock teeth and the inner side wall of the frame column cavity after the assembly is completed is smaller than the engagement depth (i.e., d in fig. 8) when the lock teeth are engaged with the lock teeth 14, so as to ensure that the snap tip 310 cannot completely fall out of the notch of the lock teeth 14 due to the limitation of the inner side wall of the frame column cavity even if the snap tip 310 would slip out along the lock inclined plane in the lock teeth 14 under the external force at a later stage, thereby further improving the locking effect. The end of the locking tooth near the bottom of the control switch component 3 is provided with a slide-in tip 311, and the side of the locking notch of the locking toothed chain 14 near the upper surface of the locking toothed chain 14 is provided with a lead-in inclined plane 141. The smooth penetration of the snap-in nib 310 into the notch of the locking tooth chain 14 is facilitated by the provision of the slide-in nib 311 and the lead-in ramp 141.

Example two

As shown in fig. 1-4, in the present embodiment, a magnet 23 is fixedly disposed on the control switch assembly 3, the magnet 23 is a permanent magnet 23, a magnetizing block is fixedly disposed on the external control handle 21, the magnetizing block may be formed by one of 3 ferromagnetic metals, such as iron, cobalt, and nickel, so that the magnetizing block is attracted by the magnet 23 disposed on the control switch assembly 3, a switch height adjusting portion 32 is disposed on the control switch assembly 3, the switch height adjusting portion 32 is configured to apply a first elastic pressure to the control switch assembly 3 to lower the control switch assembly 3 by a first distance, and a magnetic force when the magnet 23 and the magnetizing block are in an attraction state is greater than the first elastic pressure.

As shown in fig. 2, since the control switch component 3 is slidably disposed inside the frame column cavity of the profile frame column 10, when the assembly is completed, the upper cover plate 11 of the new window frame material covers the top of the switch height adjusting portion 32 and applies a downward pressure to the switch height adjusting portion 32, so that the control switch component 3 is lowered by a first distance under the pressure of the switch height adjusting portion 32, and the bottom of the control switch component 3 is attached to the bottom of the cavity of the profile frame column 10, and the lowering of the first distance also ensures that the convex latch 31 penetrates into the concave bayonet to achieve locking, and the set magnetized blocks are in an unlocked state when approaching each other and being located at a position right above the magnet 23, and the attracting magnetic force between the magnetization and the magnet 23 is greater than a first elastic pressure, so that the control switch component 3 can move upward against the first elastic pressure under the action of the attracting magnetic force, therefore, the control switch component 3 can drive the convex part lock tongue 31 to be separated from the concave part bayonet, so that the unlocking action is finished, and the control switch component 3 can move along with the up-and-down sliding of the external control handle 21 due to the attraction magnetic force, so that the position of the internal control switch component 3 is controlled and adjusted.

As shown in fig. 3, the switch height adjusting portion 32 includes a lifting body 320, a sliding wheel 321 and a set of extension springs 322, the sliding wheel 321 is rotatably disposed on both sides of the lifting body 320, the extension springs 322 are connected between the lifting body 320 and the control switch assembly 3, and the extension springs 322 are located at the center of the lifting body 320. The first elastic pressure is provided by the extension spring 322. The structural arrangement uses fewer parts and is convenient to assemble.

As shown in fig. 4, the switch height adjusting portion 32 includes a lifting body 320, a set of sliding wheel 321 and at least a plurality of sets of retractable springs 322, the sliding wheel 321 is rotatably disposed in the middle of the lifting body 320, and the plurality of sets of retractable springs 322 are uniformly disposed between the lifting body 320 and the control switch assembly 3. This structure improves the stability and uniformity of the elastic force provided by the switch height adjusting part 32 when it is pressed down by providing a plurality of sets of the extension springs 322 between the elevating body 320 and the control switch assembly 3.

The section frame column 10 comprises a side wall frame column, locking ribs 12 are arranged inside the side wall frame column along the length direction of the side wall frame column, locking notches 13 with upward openings are formed in the locking ribs 12, protruding portion lock tongues 31 are arranged to be a block-shaped protrusion, and when the block-shaped protrusion penetrates into the locking notches 13 downwards, a locking function is achieved. The convex part lock tongue 31 and the locking notch 13 in the self-locking mechanism are convenient to process and manufacture, and the cost is lower.

EXAMPLE III

As shown in fig. 12, the present invention also provides an internal louver system including the internal louver switch mechanism with self-locking function mentioned in any of the above embodiments, the control switch assembly 3 includes a flip switch 34 and a lift switch 33, the flip switch 34 is connected to the flip ladder cord 8, and the lift switch 33 is connected to the lift ladder cord 7. One end of a transmission rope for realizing the lifting function is fixed at the bottom of the corner component 4, then bypasses a lifting pulley 45 in the lifting switch 33, then passes through a reversing pulley 46 in the corner component 4, and then the other end of the transmission rope passes through the wire frame 5 and then is connected with a lifting rope 7 of the blind, and the lifting of the blind is realized through the up-and-down movement of the lifting switch 33.

The two ends of the transmission rope for realizing the page turning function are respectively and fixedly connected with the upper end and the lower end of the page turning switch 34 to form an annular loop, the transmission ladder rope in the annular loop respectively bypasses the page turning wheel 42 in the corner component 4 and the fixed pulley 47 fixed at the bottom end of the side wall frame column, so that the annular loop can be driven to rotate by moving the page turning switch 34, the transmission rope can drive the page turning wheel 42 to rotate at the moment, the page turning wheel 42 drives the connecting flat shaft 6 fixed on the page turning wheel 42 to rotate, and the page turning ladder rope 8 wound on the connecting flat shaft 6 is driven to move, thereby realizing the page turning action.

Example four

As shown in fig. 5 and 11, the difference between the fourth embodiment and the third embodiment lies in that the control switch assembly 3 in the third embodiment is an integrated start switch 35, the start switch 35 includes a page turning control portion and a lifting control portion, the winding connection between the page turning control portion and the lifting control portion and the transmission rope can be performed in the manner of the third embodiment, in addition, the page turning control portion is connected with a clutch mechanism through the transmission rope, and the clutch mechanism can timely separate and combine the page turning wheel 42 and the flat shaft connector 44, so that the friction between the page turning ladder rope 8 and the reel on the wire frame 5 can be reduced, and the service life of the page turning ladder rope 8 can be prolonged. As shown in fig. 5, the clutch mechanism includes a page turning wheel 42, an expanding and contracting spring 43, a flat shaft connector 44 and a setting seat 41, the flat shaft connector 44 is sleeved on the page turning wheel 42, the expanding and contracting spring 43 is located between the page turning wheel 42 and the flat shaft connector 44, a limit bump 411 is arranged in the setting seat 41, a stop tab 441 is fixed at one side end of the flat shaft connector 44, the stop tab 441 is located between two sets of stop feet 431 of the expanding and contracting spring 43, when the expanding and contracting spring 43 is in a normal state, the two sets of stop feet 431 are not stressed, the expanding and contracting spring 43 is sleeved on the page turning wheel 42, the expanding and contracting spring 43 and the page turning wheel 42 are in over fit, so that the expanding and contracting spring 43 can rotate with the rotation of the page turning wheel 42, and the flat shaft connector 44 can rotate with the page turning wheel 42 under the limit of the stop feet 431 on the expanding and contracting spring 43, at this time, the shutter performs a page turning, when one group of blocking feet 431 of the harmomegathus spring 43 is blocked by the limiting bump 411, the blocking feet 431 are in a loose state due to the extrusion of the limiting bump 411 due to the continuous rotation of the page turning wheel 42, namely the inner diameter of the harmomegathus spring 43 is enlarged, at the moment, the harmomegathus spring 43 is in clearance fit with the page turning wheel 42, so that the harmomegathus spring 43 is separated from the page turning wheel 42, at the moment, the page turning wheel 42 idles, the arrangement of the clutch mechanism can prevent the connecting flat shaft 6 from always rotating along with the page turning wheel 42, and therefore, the friction between the page turning ladder rope 8 and the wire frame 5 is reduced, and the service life of the page turning ladder rope 8 is prolonged.

The working principle of the third embodiment is described as follows by taking the self-locking mechanism as an example in the second embodiment: firstly, mounting each part in a cavity of a section frame column 10, then fixing an upper cover plate 11 of the section on the section frame column 10, arranging a slide rail on the upper cover plate 11, arranging a slide block on an external control handle 21, penetrating the slide block into the slide rail when in use, when a magnet 23 on the external control handle 21 is close to the magnet 23 arranged on the control switch component 3, controlling the control switch component 3 to rise for a first distance due to the attraction of magnetic force, at the moment, a convex lock tongue 31 is released from a locking notch 13 on a locking rib 12 to unlock, so that the control switch component 3 can slide along with the external control handle 21, thereby realizing the lifting and page turning of the venetian blind, when the locking is needed, sliding the control switch component 3 to the position where the convex lock tongue 31 corresponds to the locking notch 13, then releasing the external control handle 21 from the slide rail, at the moment, the magnetic force between the external control handle 21 and the control switch component 3 disappears, the switch assembly 3 is controlled to descend by a first distance under the action of the first elastic pressure of the extension spring 322 in the switch height adjusting portion 32, so that the convex lock tongue 31 is driven to penetrate into the locking notch 13 on the locking rib 12 to realize the locking function.

The above description is intended to describe in detail the preferred embodiments of the present invention, but the embodiments are not intended to limit the scope of the claims of the present invention, and all equivalent changes and modifications made within the technical spirit of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A built-in shutter switch mechanism with a self-locking function comprises a section frame column (10), a control switch component (3) and an external control handle (21), wherein the control switch component (3) is arranged inside a frame column cavity of the section frame column (10) in a sliding manner, the external control handle (21) is arranged outside the section frame column (10) in a sliding manner and is connected with the control switch component (3), the external control handle (21) is used for driving the control switch component (3) to lift and slide inside the frame column cavity along the length extension direction of the section frame column (10), and the shutter switch mechanism is characterized in that,

be equipped with self-locking mechanism between the lateral wall face of control switch subassembly (3) and the frame post die cavity, self-locking mechanism includes convex part spring bolt (31) and concave part bayonet socket, drives convex part spring bolt (31) through the lift of control switch subassembly (3) and alternates to in the concave part bayonet socket or follow the concave part bayonet socket and take out from deviating from, when convex part spring bolt (31) and concave part bayonet socket block, can't take place along the displacement of section bar frame post (10) length extending direction between control switch subassembly (3) and section bar frame post (10).

2. The built-in shutter switching mechanism with the self-locking function according to claim 1, wherein the control switch assembly (3) and the external control handle (21) are both provided with a magnet (23), the magnetic poles of the magnet (23) on the control switch assembly (3) or the external control handle (21) are in the same direction, the connecting line of the two magnetic pole ends of any magnet (23) is consistent with the lifting direction of the control switch assembly (3), and the external control handle (21) is provided with a magnetic pole switching device for changing the polarity of the magnetic pole on the side, close to the control switch assembly (3), of the magnet (23) on the external control handle (21).

3. The internal louver switch mechanism with the self-locking function according to claim 1, wherein the control switch assembly (3) is fixedly provided with a magnet (23), the external control handle (21) is fixedly provided with a magnetization block, the control switch assembly (3) is provided with a switch height adjusting portion (32), the switch height adjusting portion (32) is used for applying a first elastic pressure to the control switch assembly (3) to enable the control switch assembly (3) to descend for a first distance, and the magnetic force of the magnet (23) and the magnetization block in the attraction state is greater than the first elastic pressure.

4. The built-in shutter opening and closing mechanism with the self-locking function according to claim 3, wherein the opening and closing height adjusting part (32) comprises a lifting body (320), a sliding wheel (321) and a set of telescopic springs (322), the sliding wheel (321) is rotatably arranged on both sides of the lifting body (320), the telescopic springs (322) are connected and arranged between the lifting body (320) and the control switch component (3), and the telescopic springs (322) are located at the center of the lifting body (320).

5. The built-in shutter opening and closing mechanism with the self-locking function according to claim 3, wherein the opening and closing height adjusting part (32) comprises a lifting body (320), a set of sliding wheels (321) and at least a plurality of sets of telescopic springs (322), the sliding wheels (321) are rotatably arranged in the middle of the lifting body (320), and the plurality of sets of telescopic springs (322) are uniformly distributed between the lifting body (320) and the control switch component (3).

6. The internal shutter opening and closing mechanism with self-locking function of claim 2, 3 or 4, wherein the convex latch tongue (31) comprises at least one set of latch teeth, the latch teeth comprise a snap tip (310), the concave bayonet is arranged as a latch tooth chain (14) matched with the latch teeth in shape, and the snap tip (310) is perpendicular to the lifting direction of the control switch assembly (3).

7. The built-in shutter opening and closing mechanism with the self-locking function according to claim 2, 3 or 4, wherein the profile frame column (10) comprises a side wall frame column, a locking rib (12) is arranged inside the side wall frame column along the length direction of the side wall frame column, a locking notch (13) with an upward opening is formed in the locking rib (12), and the locking function is realized when the convex part lock tongue (31) penetrates into the locking notch (13).

8. The internal shutter opening and closing mechanism with self-locking function of claim 6, wherein the end of the locking tooth close to the bottom of the control switch component (3) is provided with a slide-in tip (311), and the side of the locking notch of the locking toothed chain (14) close to the upper surface of the locking toothed chain (14) is provided with a lead-in inclined surface (141).

9. An internal louver system comprising the internal louver opening and closing mechanism with the self-locking function of any one of claims 1 to 8, wherein the control switch assembly (3) comprises a page turning switch (34) and a lifting switch (33), the page turning switch (34) is connected with a page turning ladder rope (8), and the lifting switch (33) is connected with a lifting ladder rope (7).

10. An internal louver system comprises the internal louver switch mechanism with the self-locking function, wherein the control switch assembly (3) is set as an integrated starting switch (35), the starting switch (35) comprises a page turning control part and a lifting control part, the page turning control part is connected with a clutch mechanism through a transmission rope, the clutch mechanism comprises a page turning wheel (42), an expanding and contracting spring (43), a flat shaft connector (44) and a setting seat (41), the flat shaft connector (44) is sleeved on the page turning wheel (42), the expanding and contracting spring (43) is positioned between the page turning wheel (42) and the flat shaft connector (44), a limiting bump (411) is arranged in the setting seat (41), and when a blocking piece (441) of the flat shaft connector (44) is positioned between two groups of blocking feet (431) of the expanding and contracting spring (43), when the expansion and contraction spring (43) is in a relaxed state, the expansion and contraction spring (43) is separated from the page turning wheel (42).