CN213510366U

CN213510366U - Drawing rope controller for louver window

Info

Publication number: CN213510366U
Application number: CN202021451905.8U
Authority: CN
Inventors: 巫强
Original assignee: Jiangyin Boqiang Decoration Materials Co ltd
Current assignee: Jiangyin Boqiang Decoration Materials Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-06-22
Anticipated expiration: 2030-07-21

Abstract

The application relates to a shutter haulage rope controller, which comprises a fixed plate, an inner fixed cylinder, a take-up pulley and first supporting plates, wherein the first supporting plates are arranged perpendicular to the fixed plate and are arranged in pairs along the width direction of the fixed plate; the driving assembly comprises a telescopic rod and a limiting head, the limiting head is fixedly sleeved at one end of the telescopic rod, the limiting head slides in the inner fixed cylinder and is meshed with the inner fixed cylinder, the side surface of the fixed plate is connected with a supporting side plate, and the telescopic rod penetrates through and is connected to the supporting side plate in a sliding manner; and a locking and positioning device is additionally arranged. This application has the effect that can control the lift and the upset of shutter in the low department.

Description

Drawing rope controller for louver window

Technical Field

The utility model relates to a shutter especially relates to shutter haulage rope controller.

Background

The shutter is a type of window, is generally used for indoor and outdoor sunshade, ventilation, has the effect that installation and disassembly are convenient, thermal-insulated, heat preservation, peep-proof simultaneously, through the upset to the different angles of shutter blade and the adjustment of blade elevating height, can adjust indoor daylighting and protect privacy to different degrees for the shutter is widely used in our daily life.

Chinese patent No. CN207092918U discloses a blind with a lifting adjusting device, which comprises a window frame, glass, and a blind, wherein a lifting device and a swinging device are arranged in the window frame, the lifting device comprises a rotating shaft, a rope winder, and a pull rope, the rotating shaft is rotatably connected in an aluminum frame, the rope winder is fixed on the rotating shaft, one end of the pull rope is fixed on the rope winder, and the other end of the pull rope penetrates through the blind; the swinging device comprises a ladder belt, a winding support, wherein the winding support is rotatably connected to the rotating shaft, the ladder belt is fixed on the winding support, and a lifting mechanism is arranged between the side wall of the aluminum frame and the lifting device in the window frame and drives the shutter to lift. According to the technical scheme, when the louver in the louver is lifted, the lifting mechanism drives the lifting device in the louver to move firstly, so that the louver is driven to ascend or descend, when the louver is in a descending state, the lifting mechanism continues to move to drive the swing mechanism to swing, the swing mechanism drives the swing device to swing, the louver is driven to swing, and therefore the effect of lifting and adjusting the louver is achieved through one-time action.

The blind with the lifting adjusting device realizes the control of lifting and opening of the blind blades. However, in the practical use process, the height of the handle needs to be controlled to realize the lifting of the traction rope, when the height of the window is high and the height of a person is insufficient, other auxiliary tools are needed, and the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

To the not enough that prior art exists, the purpose of this application is to provide a shutter haulage rope controller, and it has the effect of controlling the lift of shutter in the low department.

The above object of the present invention is achieved by the following technical solutions:

a controller of a blind window hauling rope comprises a fixing plate, a take-up assembly, a driving assembly and a locking assembly;

the take-up assembly comprises an inner fixed cylinder, a take-up pulley and first supporting plates, wherein the first supporting plates are perpendicular to the fixed plate and are arranged in pairs along the width direction of the fixed plate;

the driving assembly comprises a telescopic rod and a limiting head, the limiting head is fixedly sleeved at one end of the telescopic rod, the limiting head slides in the inner fixed cylinder and is meshed with the inner fixed cylinder, a supporting side plate is connected to the side surface of the fixed plate, and the telescopic rod penetrates through and is connected to the supporting side plate in a sliding manner;

the locking assembly comprises a first push rod and a first locking block, the first push rod penetrates through and is connected to the supporting side plate in a sliding mode, the first push rod is parallel to the telescopic rod, a first supporting rod is integrally formed at one end, close to the take-up pulley, of the first push rod, the first supporting rod is perpendicular to the inner fixing barrel and located on one side of the take-up pulley, the first locking block is fixedly connected to one side, close to the take-up pulley, of the first supporting rod, a first locking groove is formed in one side, close to the first locking block, of the take-up pulley, and the inner side wall of the first locking groove is mutually meshed with the upper surface of the first locking block.

By adopting the technical scheme, when the shutter drawing rope controller is installed inside the window frame, a user winds the pulling rope on the take-up pulley to be fixed, pushes the telescopic rod in the horizontal direction to enable the limiting head to be located in the inner fixed cylinder, the limiting head drives the inner fixed cylinder to rotate, the inner fixed cylinder drives the take-up pulley to rotate to take up or lower the drawing rope, and accordingly the shutter blades are driven to ascend or descend; when the shutter reaches required height, the user stall telescopic link, later, inwards promote first push rod, make first push rod drive first bracing piece to drive first lock piece and get into first locked groove, with first locked groove interlock, the locking take-up pulley avoids take-up pulley antiport, thereby plays locking and positioning action to the take-up pulley, has realized taking up or preventing the purpose of line in the low place, has reduced the operation degree of difficulty.

Preferably, the outer side wall of the limiting head is in an outer gear ring shape, the longitudinal section of the inner fixing barrel is in an inner gear ring shape, and the limiting head is connected in the inner fixing barrel in a sliding mode and meshed with the inner gear ring of the inner fixing barrel.

Through adopting above-mentioned technical scheme, the lateral wall is the spacing head of outer gear ring form and all can with the meshing of internal fixation section of thick bamboo at arbitrary angle, has improved the convenience to take-up pulley locking and location.

Preferably, one side of the take-up pulley, which is close to the supporting side plate, is provided with a blade overturning device, and the blade overturning device comprises an overturning assembly and an overturning locking assembly;

the turnover assembly comprises a rotary cylinder, turnover wheels and second support plates, the second support plates are perpendicular to the fixed plate and are arranged in pairs along the width direction of the fixed plate, the rotary cylinder penetrates through the second support plates, the longitudinal section of the rotary cylinder is in an inner gear ring shape, and the turnover wheels are positioned between the two second support plates and fixedly sleeved on the rotary cylinder;

upset locking Assembly includes second push rod and second locking piece, the second push rod passes and slides and connects in supporting the curb plate, the second push rod is on a parallel with the telescopic link, and its one end integrated into one piece that is close to the returning pulley has the second bracing piece, the setting of second bracing piece perpendicular to internal fixation section of thick bamboo, and is located one side of returning pulley, second locking piece fixed connection is in one side that the second bracing piece is close to the take-up pulley, one side that the take-up pulley is close to the second locking piece is opened there is the second locked groove, the inside wall of second locked groove and the upper surface interlock of second locking piece each other.

Through adopting above-mentioned technical scheme, the rope wire winding that will overturn is on the trip wheel, when needs carry out the angle upset to the shutter plate, the pulling telescopic link, make spacing head wear to establish in the rotary drum, after with rotary drum intermeshing, the telescopic link can drive the rotary drum and rotate, make the rope that overturns continue the wire winding on the trip wheel, thereby realize the upset of shutter plate, when upset to required angle, the telescopic link stall, inwards promote the second push rod, make the second push rod drive the second bracing piece, thereby drive the second locking piece and get into the second locked groove, with the interlock of second locked groove, the locking trip wheel, avoid the trip wheel antiport, thereby play locking and positioning action to the trip wheel, the user can control same shutter haulage rope controller in the low place, the realization is to shutter blade lift and the control of upset.

Preferably, a tensioning device is arranged above the turnover wheel and comprises a sliding frame, a tensioning wheel and a tensioning pressure spring, the sliding frame is arranged in pairs along the width direction of the fixing plate, the tensioning wheel is rotatably connected in the sliding frame, one end of the tensioning pressure spring is fixedly connected to the sliding frame, and the other end of the tensioning pressure spring is abutted to the fixing plate; the lower part of the sliding frame is provided with a sliding plate, the sliding plate is fixedly connected to the supporting side plate, and the sliding frame is connected to the sliding plate in a sliding mode.

Through adopting above-mentioned technical scheme, the haulage rope winds on the take-up pulley after the take-up pulley earlier, and in the use, the horizontal direction's elasticity is exerted to the frame that slides constantly to the tensioning pressure spring, acts on the haulage rope on the take-up pulley simultaneously, plays the tensioning effect of horizontal direction to it, has reduced the possibility of receiving line or the upset in-process stay cord production not hard up condition.

Preferably, the body of the sliding plate is provided with dovetail sliding grooves in pairs, and the lower part of the sliding frame is integrally formed with dovetail sliding strips which are connected in the sliding grooves in a sliding manner.

Through adopting above-mentioned technical scheme, when the strip that slides slided in the groove that slides, both restrict mutually, reduced the possibility that the frame that slides breaks away from the slide plate.

Preferably, one side of the sliding frame facing the fixed plate is fixedly connected with a guide rod, the guide rod penetrates through and is connected to the fixed plate in a sliding mode, and the tensioning compression spring is sleeved on the guide rod.

Through adopting above-mentioned technical scheme, the guide bar plays the guide effect to the tensioning pressure spring, prevents the tensioning pressure spring in the condition of the in-process direction change of compressed, guarantees that the direction of the tensioning pressure spring application elasticity direction of frame that slides is the horizontal direction all the time.

Preferably, one of the first supporting plate close to the first locking groove is provided with a first position yielding port, and one of the second supporting plate close to the second locking groove is provided with a second position yielding port.

Through adopting above-mentioned technical scheme, when needs lock and fix a position take-up pulley or overturning wheel, inwards promote the push rod to drive the interlock of locking piece on the bracing piece and locked groove, let the mouth increase the horizontal range that the bracing piece removed, it is great when the shutter plate, when the number of winding turns is more, be convenient for select the take-up pulley of different width to install.

Preferably, the fixing plate is provided with at least two positioning screw holes.

Through adopting above-mentioned technical scheme, can confirm the mounted position of screw in the window frame according to user's high demand, improve the controllability.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the winding number of turns of the stay cord on the take-up pulley is controlled by controlling the rotation of the telescopic rod, so that the aim of controlling the lifting of the shutter at a low position is fulfilled;

2. the lifting device and the turning device of the shutter are arranged in the same controller, so that the aim of simultaneously controlling the lifting and turning of the shutter at a low position is fulfilled;

3. the pull rope tensioning device is installed in the controller, so that the possibility of loosening the pull rope in the control process is reduced.

Drawings

Fig. 1 is a schematic structural diagram for embodying the present application.

FIG. 2 is a cross-sectional view for embodying the drive assembly and the locking assembly.

Description of reference numerals: 1. a fixing plate; 2. supporting the side plates; 3. a wire take-up assembly; 31. an inner fixed cylinder; 32. a take-up pulley; 33. a first support plate; 4. a turnover assembly; 41. a rotating cylinder; 42. a turnover wheel; 43. a second support plate; 5. a drive assembly; 51. a limiting head; 52. a telescopic rod; 53. rotating the handle; 6. a locking assembly; 61. a first push rod; 62. a first support bar; 63. a first lock block; 64. a first locking groove; 7. turning over the locking assembly; 71. a second push rod; 72. a second support bar; 73. a second lock block; 74. a second locking groove; 8. a tension assembly; 81. a sliding frame; 82. a tension wheel; 83. tensioning a pressure spring; 84. a guide bar; 85. a slide plate; 86. a sliding groove; 87. a sliding strip; 88. a rope hole; 91. a first escape port; 92. a second escape port; 10. and positioning the screw hole.

Detailed Description

The present application is described in further detail below with reference to the attached figures.

The embodiment of the application discloses shutter haulage rope controller. Referring to fig. 1, including fixed plate 1, receive line subassembly 3, drive assembly 5 and locking Assembly 6, receive line subassembly 3 includes an internal fixation section of thick bamboo 31, take-up pulley 32 and first backup pad 33, first backup pad 33 perpendicular to fixed plate 1 sets up, and set up in pairs along the width direction of fixed plate 1, internal fixation section of thick bamboo 31 rotates and connects between two first backup pads 33, the longitudinal section of internal fixation section of thick bamboo 31 is the inner ring form, take-up pulley 32 is located between two first backup pads 33 and fixed the cover is established on internal fixation section of thick bamboo 31.

Referring to fig. 1 and 2, the driving assembly 5 includes a telescopic rod 52 and a limiting head 51, the limiting head 51 is fixedly sleeved at one end of the telescopic rod 52, the outer side wall of the limiting head 51 is in an outer gear ring shape, the other end of the telescopic rod 52 is fixedly connected with a handle, and the limiting head 51 is connected in the inner fixed cylinder 31 in a sliding manner and is meshed with the inner gear ring of the inner fixed cylinder 31.

Referring to fig. 1 and 2, side fixedly connected with of fixed plate 1 supports curb plate 2, telescopic link 52 passes and slides and connects in supporting curb plate 2, horizontal migration through control telescopic link 52, can control the meshing of spacing head 51 in interior solid fixed cylinder 31, when inwards promoting telescopic link 52, when spacing head 51 meshes with interior solid fixed cylinder 31, rotate the handle that telescopic link 52 is located the window frame outside, can drive take-up pulley 32 and rotate, the stay cord continues to wrap up in take-up pulley 32, thereby reach the effect of carrying out shutter lifting control in the low place.

Referring to fig. 1 and 2, the locking assembly 6 includes a first push rod 61 and a first locking block 63, the first push rod 61 penetrates through and is slidably connected to the supporting side plate 2, the first push rod 61 is parallel to the telescopic rod 52, a first supporting rod 62 is integrally formed at an end of the first push rod adjacent to the take-up pulley 32, the first supporting rod 62 is perpendicular to the inner fixed cylinder 31 and is located at one side of the take-up pulley 32, the first locking block 63 is fixedly connected to one side of the first supporting rod 62 adjacent to the take-up pulley 32, a first locking slot 64 is formed at one side of the take-up pulley 32 adjacent to the first locking block 63, and an inner side wall of the first locking slot 64 is engaged with an upper surface of the first locking block.

Referring to fig. 1 and 2, when a user rotates the handle 53 to control the take-up pulley 32 to take up the blind window to reach a desired height, the first push rod 61 is pushed inward, the first push rod 61 drives the first support rod 62 to move inward, so that the first lock block 63 on the first support rod enters the first lock groove 64 and is engaged with the first lock groove 64 to prevent the take-up pulley 32 from rotating reversely, thereby locking and positioning the take-up pulley 32; the first support plate 33 close to the first locking groove 64 is provided with a first position-giving opening 91, so that the first push rod 61 can move back and forth in the process of locking or unlocking the take-up pulley 32, the space for moving back and forth is increased, and when the shutter is large, the take-up pulleys 32 with different sizes can be selected according to actual conditions.

Referring to fig. 1, one side of the take-up pulley 32 close to the supporting side plate 2 is provided with a blade turning device, and the blade turning device comprises a turning assembly 4 and a turning locking assembly 7, wherein the turning assembly 4 comprises a rotating cylinder 41, a turning wheel 42 and a second supporting plate 43, and the second supporting plate 43 is perpendicular to the fixing plate 1 and is arranged in pairs along the width direction of the fixing plate 1.

Referring to fig. 1 and 2, the second supporting plate 43 is worn to establish by the rotating cylinder 41, the longitudinal section of the rotating cylinder 41 is in the shape of an internal gear ring, the turnover wheel 42 is located between two second supporting plates 43 and fixed cover is established on the rotating cylinder 41, if the user pushes the telescopic rod 52 inwards, the limiting head 51 can be made to slide to the rotating cylinder 41, mesh with the rotating cylinder 41, the handle that the telescopic rod 52 is located the window frame outside is rotated, the turnover wheel 42 can be driven to rotate, the turnover rope is rotated to overturn the louver blades simultaneously, and the functions of controlling the lifting and overturning of the louver blades respectively through the rotation of the same telescopic rod 52 are realized.

Referring to fig. 1 and 2, the turnover locking assembly 7 includes a second push rod 71 and a second locking block 73, the second push rod 71 passes through and is slidably connected to the supporting side plate 2, the second push rod 71 is parallel to the telescopic rod 52, a second support rod 72 is integrally formed at one end of the second push rod 71 close to the turnover wheel 42, the second support rod 72 is perpendicular to the rotary drum 41 and is located at one side of the turnover wheel 42, the second locking block 73 is fixedly connected to one side of the second support rod 72 close to the turnover wheel 42, a second locking groove 74 is formed at one side of the turnover wheel 42 close to the second locking block 73, and an inner side wall of the second locking groove 74 is engaged with an upper surface of the second locking block 73.

Referring to fig. 1 and 2, when the user rotates the turnover wheel 42 to turn over the louver blades to a desired angle, the second push rod 71 is pushed inwards, the second push rod 71 drives the second support rod 72 to move inwards, so that the second locking block 73 on the second push rod enters the second locking groove 74 and is meshed with the second locking groove 74, the reverse rotation of the turnover wheel 42 is prevented, the turnover wheel 42 is locked and positioned, the purpose of controlling the same controller at a lower position is achieved, and the purpose of controlling the lifting and the turnover of the louver window at the same time can be controlled.

Referring to fig. 1 and 2, a second yielding hole 92 is formed in the second supporting plate 43 near the second locking groove 74, and the second yielding hole 92 facilitates the forward and backward movement of the second locking block 73, and facilitates the installation of the turning wheels 42 with different sizes when the window body of the blind is large and the number of winding turns is large.

Referring to fig. 2, a tensioning assembly 8 is arranged above the turnover wheel 42, the tensioning assembly 8 includes a sliding frame 81, a tensioning wheel 82 and a tensioning pressure spring 83, the sliding frame 81 is arranged in pair along the width direction of the fixing plate 1, the sliding frame 81 is rotatably connected with the tensioning wheel 82, one end of the tensioning pressure spring 83 is fixedly connected to the sliding frame 81, the other end of the tensioning pressure spring is abutted to the fixing plate 1, a guide rod 84 is fixedly connected to one side of the sliding frame 81 facing the fixing plate 1, and the guide rod 84 penetrates and is connected to the fixing plate 1 in a sliding.

Referring to fig. 1, the tension compression spring 83 is sleeved on the guide rod 84, so that the possibility that the tension compression spring 83 is bent in the compression process is reduced, a sliding plate 85 is arranged below the sliding frame 81, the sliding plate 85 is fixedly connected to the supporting side plate 2, the sliding frame 81 is connected to the sliding plate 85 in a sliding manner, two dovetail-shaped sliding grooves 86 are formed in the plate body of the sliding plate 85, a dovetail-shaped sliding strip 87 is integrally formed below the sliding frame 81, and the sliding strip 87 is connected to the sliding grooves 86 in a sliding manner.

Referring to fig. 1 and 2, when the sliding bar 87 slides in the sliding groove 86, the two limit each other, reducing the possibility that the sliding frame 81 is separated from the sliding plate 85; the sliding plate 85 is positioned on the plate body below the sliding frame 81, a rope hole 88 for a pulling rope to pass through is formed in the plate body, the pulling rope firstly passes through the tensioning wheel 82 and then winds on the take-up pulley 32 and the turnover wheel 42, the horizontal elastic force of the tensioning pressure spring 83 acts on the sliding frame 81 to push the sliding frame 81 to horizontally slide on the sliding plate 85, the tensioning wheel 82 is fixedly connected with the sliding frame 81 and simultaneously receives the horizontal thrust, the pulling rope passing through the tensioning wheel plays a horizontal tensioning role, and the possibility that the pulling rope is loosened in the process of taking up or turning over is reduced.

Referring to fig. 2, the fixing plate 1 is provided with four positioning screw holes 10, and when the fixing plate is used, screws can be connected in the positioning screw holes 10 and the window frame through threads according to the required height, so that the mounting flexibility is improved.

The implementation principle of shutter haulage rope controller of the embodiment of this application does: the traction rope controller can complete lifting control of the louver blades in a fixed state, and meanwhile lifting and overturning control of the louver blades are completed through the same controller; when the lifting control of the louver blade is required, the telescopic rod 52 is pulled to enable the limiting head 51 on the telescopic rod to be meshed with the inner fixed barrel 31, the handle 53 is rotated to drive the take-up pulley 32 to rotate for taking up, when the louver blade reaches the required height, the first push rod 61 is pushed to enable the first locking block 63 connected with the first push rod to be meshed with the first locking groove 64 on the take-up pulley 32, and the take-up pulley 32 cannot continuously rotate, so that the effects of locking and positioning are achieved; similarly, when the turnover control is realized to the shutter plate to needs, pulling telescopic link 52, make spacing head 51 and the meshing of a rotating cylinder 41 on it, rotate handle 53, drive upset wheel 42 and rotate, thereby drive the upset rope on it and carry out the upset of shutter plate, when the shutter plate adjusts to required angle, promote second push rod 71, make the second locking piece 73 of being connected rather than interlock with the second locked groove 74 on the upset wheel 42, upset wheel 42 then can't continue to rotate, thereby play the effect of locking and location.

The tension device above the turnover wheel 42 applies horizontal acting force to the sliding frame 81 and the tension wheel 82 through the tension compression spring 83, so that the tension wheel 82 applies acting force to the passing traction rope to tension the traction rope.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A shutter haulage rope controller which characterized in that: comprises a fixed plate (1), a wire take-up component (3), a driving component (5) and a locking component (6);

the wire take-up assembly (3) comprises an inner fixing barrel (31), a wire take-up pulley (32) and first supporting plates (33), wherein the first supporting plates (33) are arranged perpendicular to the fixing plate (1) and are arranged in pairs along the width direction of the fixing plate (1), the inner fixing barrel (31) is rotatably connected between the two first supporting plates (33), and the wire take-up pulley (32) is positioned between the two first supporting plates (33) and is fixedly sleeved on the inner fixing barrel (31);

the driving assembly (5) comprises a telescopic rod (52) and a limiting head (51), the limiting head (51) is fixedly sleeved at one end of the telescopic rod (52), the limiting head (51) slides in the inner fixed cylinder (31) and is meshed with the inner fixed cylinder (31), the side surface of the fixed plate (1) is connected with the supporting side plate (2), and the telescopic rod (52) penetrates through and is connected to the supporting side plate (2) in a sliding manner;

locking Assembly (6) include first push rod (61) and first locking piece (63), first push rod (61) pass and slide and connect in support curb plate (2), first push rod (61) are on a parallel with telescopic link (52), and its one end integrated into one piece that is close to take-up pulley (32) has first bracing piece (62), fixed section of thick bamboo (31) setting in first bracing piece (62) perpendicular to just is located one side of take-up pulley (32), first locking piece (63) fixed connection is in one side that take-up pulley (32) are close to first bracing piece (62), one side that take-up pulley (32) are close to first locking piece (63) is opened has first locked groove (64), the inside wall of first locked groove (64) and the upper surface interlock of first locking piece (63) each other.

2. The blind pull cord controller of claim 1, wherein: the lateral wall of spacing head (51) is the external gear ring form, the longitudinal section of interior fixed cylinder (31) is the internal gear ring form, spacing head (51) slide to be connected including in fixed cylinder (31), and mesh mutually with interior fixed cylinder (31) ring gear.

3. The blind pull cord controller of claim 1, wherein: a blade overturning device is arranged on one side, close to the supporting side plate (2), of the take-up pulley (32), and comprises an overturning assembly (4) and an overturning locking assembly (7);

the turnover assembly (4) comprises a rotating cylinder (41), turnover wheels (42) and second supporting plates (43), the second supporting plates (43) are perpendicular to the fixed plate (1) and are arranged in pairs along the width direction of the fixed plate (1), the rotating cylinder (41) penetrates through the second supporting plates (43), the longitudinal section of the rotating cylinder (41) is in an inner gear ring shape, and the turnover wheels (42) are positioned between the two second supporting plates (43) and fixedly sleeved on the rotating cylinder (41);

upset locking Assembly (7) include second push rod (71) and second locking piece (73), second push rod (71) pass and slide and connect in supporting curb plate (2), second push rod (71) are on a parallel with telescopic link (52), and its one end integrated into one piece that is close to upset wheel (42) has second bracing piece (72), second bracing piece (72) perpendicular to rotating cylinder (41) set up, and are located one side of upset wheel (42), second locking piece (73) fixed connection is in one side that second bracing piece (72) are close to upset wheel (42), one side that upset wheel (42) are close to second locking piece (73) is opened has second locked groove (74), the inside wall of second locked groove (74) and the upper surface interlock of second locking piece (73) are each other.

4. The blind pull cord controller of claim 3, wherein: a tensioning assembly (8) is arranged above the turnover wheel (42), the tensioning assembly (8) comprises a sliding frame (81), a tensioning wheel (82) and a tensioning pressure spring (83), the sliding frame (81) is arranged in pairs along the width direction of the fixing plate (1), the tensioning wheel (82) is rotatably connected in the sliding frame (81), one end of the tensioning pressure spring (83) is fixedly connected to the sliding frame (81), and the other end of the tensioning pressure spring is abutted to the fixing plate (1); the below of frame (81) that slides is equipped with slide plate (85), slide plate (85) fixed connection is in supporting curb plate (2), slide frame (81) and slide and connect on slide plate (85).

5. The blind pull cord controller of claim 4, wherein: the sliding plate (85) is located on a plate body below the sliding frame (81) and is provided with a dovetail-shaped sliding groove (86), the sliding frame (81) is integrally formed with a dovetail-shaped sliding strip (87), and the sliding strip (87) is connected in the sliding groove (86) in a sliding mode.

6. The blind pull cord controller of claim 5, wherein: one side fixedly connected with guide bar (84) of frame (81) towards fixed plate (1) slides, guide bar (84) pass and slide and connect in fixed plate (1), tensioning pressure spring (83) cover is established on guide bar (84).

7. The blind pull cord controller of claim 1, wherein: a first yielding port (91) is formed on the first supporting plate (33) close to the first locking groove (64), and a second yielding port (92) is formed on the second supporting plate (43) close to the second locking groove (74).

8. The blind pull cord controller of claim 1, wherein: the fixing plate (1) is provided with at least two positioning screw holes (10).