CN116044300A

CN116044300A - Operating mechanism and curtain

Info

Publication number: CN116044300A
Application number: CN202211371429.2A
Authority: CN
Inventors: 潘宇; 麦克·亚历山大·梅耶
Original assignee: Xubo Trade Trade Co ltd
Current assignee: Xubo Trade Trade Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-05-02

Abstract

The invention provides an operating mechanism, which belongs to the technical field of curtains and comprises a shell, a first bearing assembly, a rotating wheel, a first gear assembly, a transmission worm wheel and a control piece, wherein the first bearing assembly is arranged in the shell and is in rotary connection with the shell; the rotating wheel is arranged in the shell and is contacted with the first bearing component; the first gear component is arranged in the shell and connected with the rotating wheel, and the first gear component and the rotating wheel synchronously rotate; the transmission worm is arranged in the shell and is movably connected with the shell, and part of the transmission worm is meshed with the first gear assembly; the transmission worm wheel is movably connected with the shell and is matched with the transmission worm; the transmission worm wheel is provided with an external connection end; the control piece is connected with the rotating wheel and used for controlling the working state of the rotating wheel. The operating mechanism provided by the invention can save labor, and can conveniently and rapidly finish the operation of external equipment. The invention also provides a curtain.

Description

Operating mechanism and curtain

Technical Field

The invention belongs to the technical field of curtains, and particularly relates to an operating mechanism and a curtain.

Background

The blind is generally provided with an operating mechanism for controlling the elevation and the opening and closing of the blades of the blind. Currently, most of the control mechanisms for controlling curtains in the market mainly comprise bead pulling or pull rope control. The curtain has the function of controlling the curtain with larger size and heavier weight by a certain deceleration proportion and smaller force. Which is basically realized in a planetary manner. There are certain drawbacks. 1. The planetary gear is decelerated, and the planetary gear does not have a locking function and needs to be additionally provided with a locking mechanism. 2. The common operating mechanism in the market can not exchange the pulling rope in a front-back opposite way. In addition, the shutter curtain is generally installed in a punching mode and an installation mode without punching. The installation without punching is more and more popular in the market because the installation does not damage the wall. Products such as curtains are installed at the positions of window frames, door frames and the like through a perforation-free installation mechanism arranged on the curtain rail. The curtain products without punching in the market generally mainly comprise a threaded rod and a nut. The structure is simple, but there are many inconveniences. 1. When the punching-free supporting distance is longer, the nut needs to be adjusted for many circles to tightly prop the threaded rod against the supporting surface, and time is wasted. 2. The screw thread structure provides supporting force, the tightening torque is small, the supporting force is insufficient, the tightening torque is large, the manual force is limited, tools such as a wrench are needed, and the screw thread structure is inconvenient to operate at certain corners and the like. 3. The thread is easy to be damaged by sliding teeth after repeated use.

Therefore, the design of the operating mechanism and the curtain which are labor-saving to use and convenient to install are very necessary.

Disclosure of Invention

The invention aims to provide an operating mechanism and a curtain, and aims to solve the technical problems that installation is time-consuming and labor-consuming and inconvenient in installation in the prior art.

In order to achieve the above purpose, the invention adopts the following technical scheme: there is provided a steering mechanism comprising:

a housing;

the first bearing assembly is arranged in the shell and is rotationally connected with the shell;

the rotating wheel is arranged in the shell and is contacted with the first bearing assembly;

the first gear assembly is arranged in the shell and connected with the rotating wheel, and the first gear assembly and the rotating wheel synchronously rotate;

the transmission worm is arranged in the shell and is movably connected with the shell, and part of the transmission worm is meshed with the first gear assembly;

the transmission worm wheel is movably connected with the shell and is matched with the transmission worm; the transmission worm wheel is provided with an external end;

and the control part is connected with the rotating wheel and used for controlling the working state of the rotating wheel.

Preferably, the housing comprises:

the upper shell is provided with a fixed shaft which is used for being rotationally connected with the transmission worm; the upper shell is provided with a positioning column for limiting the first gear assembly and the rotating wheel, and the positioning column is provided with a first connecting position for connecting with the transmission worm wheel;

the lower shell is detachably connected with the upper shell; the lower shell is provided with openings on two sides respectively, the lower shell is provided with a second connecting position matched with the fixed shaft, and the lower shell is provided with a mounting shaft for limiting the first bearing assembly.

Preferably, the end face of the opening is detachably connected with a wear-resistant component.

Preferably, the wheel comprises:

the rotating wheel main body is provided with a mounting hole matched with the second bearing assembly;

the groove is arranged on the rotating wheel main body, is matched with the first gear assembly and is used for preventing the first gear assembly from rotating relative to the rotating wheel main body;

the anti-slip rib is arranged on the wheel rotating main body and used for being in contact with the control piece to prevent slipping.

Preferably, the drive worm wheel includes:

a worm wheel main body;

the first rotating shaft is connected with any end face of the worm gear main body;

the second rotating shaft is connected with the other end face of the worm gear main body, and the external connection end is arranged on the second rotating shaft.

The present invention also provides a window covering comprising: a steering mechanism as hereinbefore described.

Preferably, a labor saving device is further included, the labor saving device including:

a housing connected to the window curtain body;

a cover adapted to the housing;

the rotating shaft is connected with the curtain main body;

the positioning shaft is connected with the shell and the sealing cover at the same time;

and one end of the constant force spring is connected with the rotating shaft.

Preferably, further comprising a rope reel, the rope reel comprising:

the mounting seat is arranged on the curtain main body,

the turnover spring is arranged on the mounting seat;

the rope winding pipe assembly is connected with the mounting seat; one end of the spring is connected with the turnover spring,

the device also comprises one or more of a supporting rail, a transmission shaft, a limiter, a punching-free mounting mechanism, a lifting rope, a turnover rope, a blade and a lower rail assembly.

The control mechanism and the curtain provided by the invention have the beneficial effects that: compared with the prior art, the control mechanism and the curtain have the advantages that the structure of the control mechanism is designed again, and the control piece, the rotating wheel, the first gear assembly, the transmission worm and the transmission worm wheel are matched, so that labor can be saved, and the control of external equipment can be conveniently and rapidly completed. The operating mechanism can be suitable for operating large-size curtains.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a steering mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of an exploded view of an operating mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an upper housing used in an operating mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic view showing the structural composition of a lower housing used in an operating mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic diagram showing the structure of a driving worm gear used in an operating mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structural components of a wear assembly used in an operating mechanism according to an embodiment of the present invention;

FIG. 7 is a schematic diagram showing the structural components of a worm drive used in an operating mechanism according to an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating a first gear assembly for a steering mechanism according to an embodiment of the present invention;

FIG. 9 is a schematic diagram illustrating the structural components of a wheel used in an operating mechanism according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a support rail used in a window curtain according to an embodiment of the present invention;

FIG. 11 is a schematic diagram illustrating the structural components of a rope winder used in a window covering according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of a mounting seat used in a rope winder according to an embodiment of the present invention;

FIG. 13 is a schematic diagram showing the structure of a turnover spring used in a rope winder according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of a limiter used in a curtain according to an embodiment of the present invention;

fig. 15 is a schematic structural diagram of a labor-saving device used in a curtain according to an embodiment of the present invention;

fig. 16 is a schematic structural view of a window curtain according to an embodiment of the present invention;

FIG. 17 is a schematic view of an exploded view of a window covering according to an embodiment of the present invention;

fig. 18 is a schematic structural diagram of a hole-free mounting mechanism used in a curtain according to an embodiment of the present invention;

fig. 19 is a schematic diagram illustrating an exploded structure of a hole-free mounting mechanism for a window curtain according to an embodiment of the present invention;

FIG. 20 is a schematic structural view of a chassis used in a hole-free mounting mechanism according to an embodiment of the present invention;

fig. 21 is a schematic structural diagram of a button used in a hole-free mounting mechanism according to an embodiment of the present invention;

fig. 22 is a schematic structural view of a button support used in a hole-free mounting mechanism according to an embodiment of the present invention;

fig. 23 is a schematic structural view of a supporting seat used in a hole-free mounting mechanism according to an embodiment of the present invention;

fig. 24 is a schematic structural view of a first top block used in a hole-free mounting mechanism according to an embodiment of the present invention;

fig. 25 is a schematic structural view of a connecting rod used in a hole-free mounting mechanism according to an embodiment of the present invention;

fig. 26 is a schematic structural diagram of a second top block used in a hole-free mounting mechanism according to an embodiment of the present invention.

In the figure: 1. a housing; 11. an upper housing; 111. a first screw mounting hole; 112. a first stationary shaft mounting hole; 113. a rib; 114. a third connection site; 115. a first mounting groove; 12. a lower housing; 121. an opening; 122. a second screw mounting hole; 123. a second stationary shaft mounting hole; 124. a fourth connection site; 125. concave holes; 126. a buckle; 127. a positioning groove; 128. a second mounting groove; 13. a fixed shaft; 14. positioning columns; 141. a first connection location; 15. a mounting shaft; 151. an opening structure; 16. a wear assembly; 161. a U-shaped component body; 162. a U-shaped opening; 163. a positioning structure; 17. an anti-slip assembly; 2. a first bearing assembly; 3. a rotating wheel; 31. a groove; 32. an anti-slip rib; 33. a first bearing mounting hole; 4. a first gear assembly; 41. a second bearing assembly; 42. a gear body; 43. positioning the boss; 44. a gear mounting hole; 5. a screw; 6. a drive worm; 61. a worm body; 62. a transmission gear; 63. a shaft hole; 8. a drive worm wheel; 81. a worm wheel main body; 82. a first rotating shaft; 83. a second rotating shaft; 84. an external connection end; 9. a control member;

101. a lower rail assembly; 102. a support rail; 1021. a light barrier; 1022. a first mounting location; 1023. a second mounting location; 1024. a reinforcing structural layer; 103. a transmission shaft; 104. a rope winder; 1041. a mounting base; 1042. a rope reel assembly; 1043. a turnover spring; 1044. a mounting hole; 1045. a limit groove; 1046. threading the rope hole; 1047. a positioning table; 1048. a fixing buckle; 1049. a limit structural member; 105. a limiter; 1051. a limit seat; 1052. a threaded rod; 106. a labor-saving device; 1061. a housing; 1062. a cover; 1063. a rotating shaft; 1064. positioning a shaft; 1065. a constant force spring; 107. a punching-free mounting mechanism; 1071. a mechanism base; 1072. a button; 1073. a button support; 1074. a button mounting shaft; 1075. an anti-slip structural member; 1076. a support base; 1077. a first top block; 1078. a connecting rod; 1079. a second top block; 10710. an elastic component; 10711. a rectangular hole; 10712. a limit rib; 10713. the base is buckled; 10714. a base clamping groove; 10715. a base mounting groove; 10716. a base positioning cylinder; 10717. a button main body; 10718. a connecting rod mounting hole; 10719. a button mounting hole; 10720. a cam; 10721. a bracket shaft hole; 10722. a bracket clamping groove; 10723. a bracket mounting rib; 10724. a support seat groove; 10725. a support seat sliding rib; 10726. a support base boss; 10727. the supporting seat is buckled; 10728. a saw tooth structure; 10729. a top block boss; 10730. a top block positioning shaft; 10731. a first link mounting shaft; 10732. a second link mounting shaft; 10733. the second top block moves the chute; 10734. a second top block sliding groove; 10735. a sawtooth mechanism; 108. a lifting rope; 109. a turnover rope; 110. and (3) a blade.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1 to 9, an operation mechanism provided by the present invention will now be described. The operating mechanism comprises: the device comprises a shell 1, a first bearing assembly 2, a rotating wheel 3, a first gear assembly 4, a transmission worm 6, a transmission worm wheel 8 and a control piece 9, wherein the first bearing assembly 2 is arranged in the shell 1 and is in rotary connection with the shell 1; the rotating wheel 3 is arranged in the shell 1 and is contacted with the first bearing assembly 2; the first gear assembly 4 is arranged in the shell 1 and connected with the rotating wheel 3, and the first gear assembly 4 and the rotating wheel 3 synchronously rotate; the transmission worm 6 is arranged in the shell 1 and is movably connected with the shell 1, and part of the structure of the transmission worm 6 is meshed with the first gear assembly 4; the transmission worm wheel 8 is movably connected with the shell 1, and the transmission worm wheel 8 is matched with the transmission worm 6; the transmission worm wheel 8 is provided with an external connection end; the control member 9 is connected to the wheel 3 for controlling the operating state of the wheel 3.

The user controls runner 3 operation through control 9, and runner 3, first bearing assembly 2 produce the rotation for casing 1, and the rotation of runner 3 drives first gear assembly 4 rotation, and the rotation of first gear assembly 4 drives drive worm 6 rotation, and drive worm 6 rotates and drives drive worm wheel 8 rotation, and through the rotation of drive worm wheel 8 and then drive the external equipment operation of being connected with the external end.

Compared with the prior art, the control mechanism provided by the invention has the advantages that the structure of the control mechanism is redesigned, and the control of external equipment is conveniently and rapidly finished through the coordination of the control piece 9, the rotating wheel 3, the first gear assembly 4, the transmission worm 6 and the transmission worm wheel 8. The operating mechanism can be suitable for operating large-size curtains. The worm wheel and worm form is adopted, so that the speed is reduced, the labor is saved, and the self-locking performance is realized. The rotating wheel of the operating mechanism is horizontally designed, the pull rope horizontally penetrates out and can be oppositely penetrated back and forth, and any side can be operated.

As an embodiment of the present invention, referring to fig. 1 to 9, a housing 1 includes: an upper housing 11 and a lower housing 12, the upper housing 11 being provided with a fixed shaft 13 for rotational connection with the drive worm 6; the upper shell 11 is provided with a positioning column 14 for limiting the first gear assembly 4 and the rotating wheel 3, and the positioning column 14 is provided with a first connecting position 141 for connecting with the transmission worm wheel 8; the lower housing 12 is detachably connected with the upper housing 11; openings 121 are respectively arranged on two sides of the lower shell 12, the lower shell 12 is provided with a second connecting position matched with the fixed shaft 13, and the lower shell 12 is provided with a mounting shaft 15 for limiting the first bearing assembly 2.

In the present embodiment, the upper case 11 and the lower case 12 are detachably connected by the screw 5. The upper case 11 and the lower case 12 cooperate to form the housing 1 for mounting the respective components. The upper case 11 is provided with a first screw mounting hole 111, and the lower case 12 is provided with a second screw mounting hole 122. The screw 5 fixedly connects the upper case 11 and the lower case 12 together through the first screw mounting hole 111 and the second screw mounting hole 122. The screw 5 is a self-tapping screw.

In this embodiment, the upper housing 11 is provided with a first fixing shaft mounting hole 112, and the lower housing 12 is provided with a second fixing shaft mounting hole 123 (i.e., a second connection position). One end of the fixed shaft 13 is installed in the first fixed shaft installation hole 112, and the other end is installed in the second fixed shaft installation hole 123.

In the present embodiment, ribs 113 are provided on both sides of the upper case 11, respectively. When the upper case 11 is connected to the lower case 12, the ribs 113 are bonded to the inner wall of the lower case 12.

In the present embodiment, a positioning column 14 is provided in the middle of the end face of the upper case 11. The positioning column 14 is in a circular ring shape, and the positioning column 14 fixes the first gear assembly 4 and the rotating wheel 3 together during installation to prevent the first gear assembly from being separated. Specifically, the first connection location 141 is an opening structure disposed on the positioning post 14. The opening structure is used for installing and positioning one end of the transmission worm wheel 8. The mounting shaft 15 has a circular ring structure, and an opening structure 151 is provided at one end of the mounting shaft 15 facing away from the lower housing 12. An opening structure 151 on the mounting shaft 15 cooperates with the first connection location 141 for mounting and positioning one end of the drive worm wheel 8.

In this embodiment, a third connection location 114 is provided at one end of the upper housing 11. A fourth connection location 124 is provided at one end of the lower housing 12. The third connecting position 114 and the fourth connecting position 124 cooperate to limit the other end of the transmission worm wheel 8. The third connecting hole 114 has a semicircular hole structure. The fourth connecting portion 124 has a semicircular hole structure.

In the present embodiment, the lower housing 12 is provided with a recess 125 for mounting the first bearing assembly 2.

In this embodiment, the end face of the opening 121 is detachably connected with the wear assembly 16. Specifically, the two sides of the opening 121 are respectively provided with a buckle 126 for fixing the wear assembly 16 from being separated from the lower housing 12. Positioning grooves 127 for limiting the wear assembly 16 are also provided on both sides of the opening 121.

The control member 9 is of a pull rope structure. The pull cord structure may be threaded out of either opening 121. The stay cord structure is the control rope that is used for controlling (window) curtain lift and adjust luminance, and the control rope is the circulation stay cord, and it twines on changeing 3 rounds 23, can drive the runner 3 and rotate.

The wear assembly 16 is a U-shaped member. The wear assembly 16 includes a U-shaped member body 161 with a U-shaped opening 162 provided in the U-shaped member body 161. The provision of the U-shaped opening 162 serves to reduce friction of the pull cord. The pull rope structure passes through the U-shaped opening, a positioning structure 163 is arranged on the U-shaped part main body 161, and the positioning structure 163 is matched with the buckle 126 and the positioning groove 127 on the lower shell 12 to fix the U-shaped part main body 161 on the lower shell 12. The positioning structure 163 is one or more of a positioning rib, a positioning block and the like. The wear-resistant structure 16 is a metal piece, improving the service life of the wear-resistant structure 16.

In the present embodiment, the fixed shaft 13 is a rotation shaft to which the drive worm 6 is mounted, and the drive worm 6 is rotatable about the rotation shaft. The fixed shaft 13 may be a rivet.

As an embodiment of the present invention, referring to fig. 1 to 9, the first bearing assembly 2 is a flat needle bearing. The upper end face of the first bearing assembly 2 is in contact with the rotating wheel 3 and positioned between the rotating wheel 3 and the lower shell 12, so that friction of the rotating wheel 3 is reduced, and movement is smoother.

As an embodiment of the present invention, referring to fig. 1 to 9, the first gear assembly 4 is connected to the rotating wheel 3 through the second bearing assembly 41. The second bearing assembly 41 is a cylindrical needle bearing, and the outer ring is matched with the first gear assembly 4 and the rotating wheel 3, so that friction is reduced, and the movement is smoother.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 9, the rotating wheel 3 includes a rotating wheel main body, a groove 31 and an anti-slip rib 32, and the rotating wheel main body is provided with a first bearing mounting hole 33 adapted to the first bearing assembly 2; the groove 31 is arranged on the rotating wheel main body, and the groove 31 is matched with the first gear assembly 4 and is used for preventing the first gear assembly 4 from rotating relative to the rotating wheel main body; the anti-slip rib 32 is disposed on the wheel body, and the anti-slip rib 32 is used for contacting with the control member 9 (i.e. the pull rope structure) to prevent slipping. The rotating wheel 3 can rotate under the drive of the stretching structure.

The wheel 3 is mounted on the lower housing 2, and the lower end surface of the wheel 3 is in contact with the first bearing assembly 2. The pull rope structure is wound on the rotating wheel 3 to move.

As an embodiment of the present invention, referring to fig. 1 to 9, the driving worm wheel 8 includes: a worm wheel body 81, a first shaft 82, and a second shaft 83, the first shaft 82 being connected to either end face of the worm wheel body 81, the first shaft 82 being in contact with the positioning column 14; the second rotating shaft 83 is connected to the other end surface of the worm gear body 81, and an external connection end 84 is provided on the second rotating shaft 83. The worm wheel body 81 is adapted to cooperate with the drive worm 6 for transmitting motion. The second rotating shaft 83 is rotatably connected to the housing 1.

The transmission worm wheel 8 is a transmission part with one end connected with a transmission shaft and driving the rotation shaft to rotate, and is provided with a worm wheel main body 81, the worm wheel main body 81 is matched with the transmission worm 6, and the worm wheel main body 81 can be driven to rotate when the transmission worm 6 rotates. The worm gear main body 81 is provided with a first rotating shaft 82 and a second rotating shaft 83 at both ends respectively, the first rotating shaft 82, the second rotating shaft 83 are mounted in cooperation with the shell 1, and the worm gear main body 81 can rotate around the axis.

In this embodiment, the external connection end 84 is a transmission shaft mounting hole, and the transmission shaft mounting hole is mounted in cooperation with one end of the transmission shaft. The section shape of the transmission shaft mounting hole is rectangular.

As an embodiment of the present invention, referring to fig. 1 to 9, the steering mechanism further includes an anti-slip assembly 17 connected to the housing 1. The provision of the anti-slip assembly 17 increases the friction between the operating mechanism and the contact surface. The anti-skid component 17 is one or more of a silica gel pad, a rubber pad and a deformation spring structure.

In this embodiment, the anti-slip component 17 is a silica gel pad, and is disposed at one end of the housing 1, and when the window curtain is installed, the anti-slip component 17 contacts with the supporting surface to prevent the window curtain from sliding relative to the contact surface. Specifically, the front end of the lower housing 12 is provided with a second mounting groove 128, and the second mounting groove 128 is used for mounting the anti-slip assembly 17. The front end of the upper housing 11 is provided with a first mounting groove 115, and the first mounting groove 115 is used for mounting the anti-slip assembly 17. I.e. by the cooperation of the first mounting recess 115 and the second mounting recess 128, a mounting recess structure for mounting the anti-skid assembly 17 is formed.

As a specific implementation of the embodiment of the present invention, referring to fig. 1 to 9, the driving worm 6 includes a worm body 61, a driving gear 62 and a shaft hole 63, and the worm body 61 cooperates with a worm wheel body 81 to drive movement. The transmission gear 62 is provided at one side of the worm body 61, and the transmission gear 62 is engaged with the first gear assembly 4 to rotate. The shaft hole 63 penetrates the worm body 61 in the axial direction of the worm body 61, and is used for the fixed shaft 13 to pass through, and further, the worm body 61 and the transmission gear 62 are mounted in the housing 1. The worm body 61 is mounted between the upper and lower cases 11, 12 via the fixed shaft 13. The worm body 61 is matched with the transmission worm wheel 8, and can drive the transmission worm wheel 8 to rotate when rotating. One end of the main body 6 of the worm 1 is provided with a transmission gear 62, the gear 62 is meshed with the first gear assembly 4, and when the first gear assembly 4 rotates, the transmission worm 6 can be driven to rotate.

As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 9, the first gear assembly 4 includes a gear main body 42, a positioning boss 43, and a gear mounting hole 44, where the gear main body 42 is meshed with the transmission gear 62 to drive the transmission worm 6 to rotate. The positioning boss 43 is disposed on the gear main body 42 and is mounted in cooperation with the groove 31 on the rotating wheel 3, so as to prevent the first gear assembly 4 from rotating relative to the rotating wheel 3. A gear mounting hole 44 extends through the gear body 42 for mating mounting with the second bearing assembly 42.

The first gear assembly 4 cooperates with the wheel 3. The gear body 42 includes a large gear which meshes with the drive gear 62 to drive the drive worm 6 to rotate. Positioning bosses 43 are uniformly distributed below the large gear assembly 21, and the positioning bosses 43 are matched with the grooves 31, so that the first gear assembly 4 can be driven to rotate when the rotating wheel 3 rotates.

In this embodiment, the housing 1 is provided with an external connection structure for connection with an external device. The connection and fixation with external equipment are convenient.

According to the control structure provided by the invention, when the control piece 9 is of a pull rope structure, the control piece 9 can be controlled from any side so as to cope with different scenes.

The invention also provides a window covering comprising a steering arrangement as described in any of the implementations above.

In this embodiment, the window covering further includes one or more of a support rail 102, a drive shaft 103, a cord winder 104, a stopper 105, a labor-saving device 106, a hole-free mounting mechanism 107, a lift cord 108, a turnover cord 109, a blade 110, and a lower rail assembly 101.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 26 together, the window curtain is composed of a control structure, a support rail 102, a transmission shaft 103, a rope winder 104, a limiter 105, a labor-saving device 106, a lifting rope 108, a turnover rope 109, a blade 110 and a lower rail assembly 101. The control structure is used for controlling the lifting and the overturning of the shutter curtain. The support rail 102 is used to mount the fittings and serves as a support when mounted. One end of the support rail 102 is connected to the steering mechanism. One end of a transmission shaft 103 is fixed on the operating mechanism, and a rope winder 104, a limiter 105 and a labor-saving device 106 are connected on the transmission shaft 103 in series. The rope reel 104 has a pull rope wound thereon, and an end of the flip rope 109 is fixed thereto. The cord reel 104 may control window covering elevation and dimming. The labor-saving device 106 provides assistance when the operating mechanism controls the window curtain to ascend, reduces the operating force, and plays a role in saving labor. The stopper 105 plays a limiting role when the window shade is unfolded to the lowermost portion. The turnover rope 109 has one end fixed to the rope reel 104 and the other end fixed to the lower rail assembly 101, on which blades 110 are uniformly distributed. The blade 110 is suspended below the support rail 102 by a tilt rope 109, through which the lift rope passes. One end of the lifting rope is wound on the rope winder 104, the other end of the lifting rope is fixed on the lower rail assembly 101, and the lifting rope can drive the lower rail assembly to lift when the rope winder 104 rotates. The lower rail assembly 101 is fixed with a turnover rope 109 and a lifting rope, and can drive the blade 110 to lift.

In this embodiment, the housing 1 is provided with a rail mounting groove for fitting with the support rail 102.

In the present embodiment, the support rail 102 includes a support rail body, a light barrier 1021, a first mounting location 1022, a second mounting location 1023, and a reinforcing structure layer 1024. The light blocking plate 1021 is connected with the support rail body, is positioned between the blade 110 and the rail support body, and is used for supporting the gap between the uppermost blade and the support rail body to prevent light leakage. The first mounting location 1022 is an opening structure disposed at one end of the support rail body, and is used for being mounted in cooperation with the operating mechanism. The second mounting location 1023 is used for being connected with an external structure, and may be an opening structure arranged at one end of the supporting track main body. The reinforcing structure layer 1024 is connected to the support rail body for increasing strength and reducing deformation.

As an embodiment of the present invention, referring to fig. 1 to 26, the rope reel 104 includes a mounting base 1041, a rope winding tube assembly 1042, and a turnover spring 1043, where the mounting base 1041 is mounted in the support rail 102. The rope winding tube assembly 1042 is used for winding the lifting rope 108, and can drive the lifting rope 108 to be wound and unwound, and is installed on the installation seat 1041, and one end is provided with the turnover spring 1043. The turnover spring 1043 is mounted on the rope tube assembly 1042, and both ends of the turnover rope 109 are fixed thereon to drive the turnover rope 109 to move.

In this embodiment, the mounting base 1041 is provided with a mounting hole 1044, a limiting groove 1045, a rope hole 1046, and a positioning table 1047. Mounting holes 1044 are provided at both ends of the mounting body 1041 for connection with both ends of the rope tube assembly 1042. The limit groove 1045 is adapted to the overturning spring 1043, and limits the movement angle of the overturning spring. Rope holes 1046 are used for passing lifting ropes 108 and overturning ropes 109. The positioning table 1047 is adapted to support rails 102 to prevent relative sliding.

In this embodiment, a fixing button 1048 is disposed on the overturning spring 1043, and a limiting structure 1049 is disposed on the fixing button 1048. The fixing button 1048 is used to fix both ends of the turnover rope 109. The limiting structural member 1049 is a limiting rib, and the limiting rib is adapted to the limiting groove 1045 and is used for limiting the rotation angle of the overturning spring 1043.

As an embodiment of the present invention, referring to fig. 1 to 26, the stopper 105 includes a stopper seat 1051 fixed on the support rail 102, and a threaded rod 1052 screwed with the stopper seat 1051. The threaded rod 1052 is connected in series with the transmission shaft 103 and plays a role in limiting the falling height of the curtain.

As an embodiment of the present invention, referring to fig. 1 to 26, the labor saving device 106 includes a housing 1061, a cover 1062, a rotating shaft 1063, a positioning shaft 1064, and a constant force spring 1065, wherein the housing 1061 is installed in the support rail 102, and the cover 1062 is adapted to the housing 1061. The shaft 1063 is coupled in series with the drive shaft 103 and coupled to one end of a constant force spring 1065. The positioning shaft 1064 is used to mount a positioning constant force spring 1065. One end of the constant force spring is fixed on the rotating shaft 1063, and provides assistance when the curtain is lifted.

Specifically, the housing 1061 is provided with a cover mounting hole, a shaft mounting hole, a positioning shaft mounting hole, and a buckle. The cover 1062 is provided with a positioning column adapted to the positioning column mounting hole of the housing, a second shaft mounting hole corresponding to the shaft mounting hole, and a second positioning shaft mounting hole corresponding to the positioning shaft mounting hole. And a clamping groove matched with the buckle. The rotating shaft 1063 is provided with a driving shaft mounting hole through which the driving shaft 103 passes, and a connection structure for fixing the constant force spring 1065. The constant force spring 1065 is provided with a slot structure that is fixed to the connection structure.

As a specific implementation manner of the embodiment of the present invention, please refer to fig. 1 to 26 together, the window curtain is composed of a control structure, a support rail 102, a transmission shaft 103, a rope winder 104, a limiter 105, a labor-saving device 106, a lifting rope 108, a turnover rope 109, a blade 110, a lower rail assembly 101 and a punching-free mounting mechanism 107.

In the present embodiment, the hole-free mounting mechanism 107 includes: the mechanism comprises a mechanism base 1071, a button bracket 1073, a button 1072 and an anti-slip structural member 1075, wherein the button bracket 1073 is arranged on the mechanism base 1071, and the button 1072 is rotationally connected with the button bracket 1073 through a button mounting shaft 1074; the anti-slip structure 1075 is connected to the mechanism base 1071 for providing anti-slip function.

The punching-free mounting mechanism 107 further comprises a supporting seat 1076 movably connected with the mechanism base 1071, a first top block 1077 mounted in the supporting seat 1076, the first top block 1077 and the supporting seat 1076 move relatively to generate supporting force, one end of the first top block 1077 is connected with the button 1072, the other end of the connecting rod 1078 is connected with the second top block 1079, and the button 1072 can drive the second top block 1079 to move through the connecting rod 1078. The second top block 1079 moves inward under the action of the button 1072, driving the slanted top block 1077 to move to generate supporting force. The spring assembly 10710 is adapted to provide a preload force.

In the present embodiment, a rectangular hole 10711 for mounting the second top block 1079 is provided on the structural base 1071. The structural base 1071 is provided with a limit rib 10712 which is matched with a moving chute on the second top block 1079 to enable the second top block 1079 to move along a preset direction. The structural base 1071 is provided with a base buckle 10713 adapted to the button bracket 1073 for preventing the button bracket 1073 from being separated from the structural base 1071. The structural base 1071 is provided with a base clamping groove 10714 which is matched with the supporting base 1076 and prevents the supporting base 1076 from being separated from the structural base 1071. The structural base 1071 is provided with a base mounting groove 10715 for being matched with the button support 1073 to prevent the button support 1073 from moving relative to the structural base 1071. The structural base 1071 is provided with a base positioning cylinder 10716 for positioning and mounting the elastic component 10710.

In the present embodiment, the button 1072 includes a button main body 10717, a link mounting hole 10718 provided on the button main body 10717, a button mounting hole 10719 provided on the button main body 10717, and a cam 10720 provided on the button main body 10717, and the button main body 10717 is configured to rotate the cam 10720. The link mounting hole 10718 is for connection with the link 1078. The button mounting hole 10719 is used for the button mounting shaft 1074 to pass through to connect the button 1072 with the button bracket 1073. The cam 10720 is angled relative to the central axis such that the button 1072 when closed pushes the second top piece 1079 and prevents rotation.

In this embodiment, the button holder 1073 is provided with a holder shaft hole 10721, a holder engaging groove 10722, and a holder mounting rib 10723. The bracket shaft hole 10721 is used to mount a button mounting shaft 1074 to connect the button 1072 with the button bracket 1073. The bracket slot 10722 is mounted in cooperation with the base buckle 10713 to prevent separation. The bracket mounting ribs 10723 cooperate with the base mounting slots 10715.

In this embodiment, the support base 1076 is provided with a support base groove 10724, a support base sliding rib 10725, a support base boss 10726 and a support base buckle 10727, and the support base groove 10724 is used for installing the anti-slip structural member 1075. The support base sliding ribs 10725 contact the inner wall of the mechanism base 1071, so that the movement is smoother. The support seat boss 10726 contacts the first top piece 1077 through an inclined surface. Generating oblique force during operation. The support base catch 10727 and base catch 10714 prevent separation of the support base 1076 from the mechanism base 1071.

In this embodiment, the first top block 1077 includes a top block main body, a saw tooth structure 10728 provided on an end surface of the top block main body, a top block boss 10729 provided on a side surface of the top block main body, a top block positioning shaft 10730 provided on an inner side surface of the top block main body, and a top block reinforcing rib 10731 provided on a side surface of the top block main body and provided adjacent to the top block boss 10729. The serration 10728 engages the second top piece 1079 to prevent relative sliding. The top block boss 10729 contacts the support base boss 10726 (trapezoid boss structure) through a slope, and a slope force is generated when the first top block 1077 moves inward. The top block positioning shaft 10730 is used for mounting the positioning elastic assembly 10710. The top block reinforcing ribs 10731 play a reinforcing role.

In the present embodiment, the link 1078 includes a link body having a first link mounting shaft 10731 at one end and a second link mounting shaft 10732 at the other end. The first link mounting shaft 10731 is mounted within the button mounting hole 10719. The second link installation shaft 10732 is installed in the sliding groove of the second top block 1079.

In this embodiment, the second top block 1079 includes a second top block body, a second top block movement chute 10733 provided at an end surface of the second top block body, a second top block sliding groove 10734 provided at an end surface of the second top block body, and a saw tooth mechanism 10735 provided at any end surface of the second top block body. The second top block moving chute 10733 cooperates with the stop rib 10712 on the base of the structure 1071 to move the second top block 1079 prior to the stop rib 10712. The second top block slide groove 10734 is fitted to the second link mounting shaft 10732 of the link 1078. The serration mechanism 10735 engages a serration structure on the first top piece.

The installation of this exempt from to punch installation mechanism 107 only needs to press button 1072 and becomes can realize the connected state, convenient to use is swift.

Compared with the prior art, the curtain provided by the invention can provide larger supporting force in the range of manual operation; a labor-saving device 106 is arranged, so that the operation is easier for large-size curtains. The supporting force is generated by the rotation of the cam and the inclined plane, and the device is easy to repeatedly use. The operation is quick, and no matter how long the supporting distance is, the supporting can be realized by pressing the button. The operation is light, and because the button has a moment arm with a certain length, the button can provide larger supporting capacity within the bearable range of the hand force without other tools.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. A steering mechanism, comprising:

a housing (1);

the first bearing assembly (2) is arranged in the shell (1) and is rotationally connected with the shell (1);

a rotating wheel (3) arranged in the shell (1) and contacted with the first bearing assembly (2);

the first gear assembly (4) is arranged in the shell (1) and is connected with the rotating wheel (3), and the first gear assembly (5) and the rotating wheel (3) synchronously rotate;

the transmission worm (6) is arranged in the shell (1) and is movably connected with the shell (1), and part of the transmission worm (6) is meshed with the first gear assembly (4);

the transmission worm wheel (8) is movably connected with the shell (1), and the transmission worm wheel (8) is matched with the transmission worm (6); the transmission worm wheel (8) is provided with an external connection end;

and the control part (9) is connected with the rotating wheel (3) and is used for controlling the working state of the rotating wheel (3).

2. A steering mechanism according to claim 1, wherein the housing (1) comprises:

the upper shell (11) is provided with a fixed shaft (13) which is used for being rotationally connected with the transmission worm (6); a positioning column (14) for limiting the first gear assembly (4) and the rotating wheel (3) is arranged on the upper shell (11), and a first connecting position (141) for connecting with the transmission worm wheel (8) is arranged on the positioning column (14);

a lower housing (12) detachably connected to the upper housing (11); the two sides of the lower shell (12) are respectively provided with an opening (121), the lower shell (12) is provided with a second connecting position matched with the fixed shaft (13), and the lower shell (12) is provided with a mounting shaft (15) for limiting the first bearing assembly (2).

3. A steering mechanism as claimed in claim 2, wherein: an end face of the opening (121) is detachably connected with a wear-resistant component (16).

4. A steering mechanism as claimed in claim 1, wherein: the rotor (3) comprises:

the rotating wheel main body is provided with a first bearing mounting hole (33) which is matched with the first bearing assembly (2);

a groove (31) arranged on the rotating wheel main body, wherein the groove (31) is matched with the first gear assembly (4) and is used for preventing the first gear assembly (4) from rotating relative to the rotating wheel main body;

the anti-slip rib (32) is arranged on the wheel rotating main body, and the anti-slip rib (32) is used for being in contact with the control piece (9) to prevent slipping.

5. A steering mechanism as claimed in claim 1, wherein: the drive worm wheel (8) comprises:

a worm wheel main body (81) which is matched with the transmission worm (6) and transmits motion;

a first rotating shaft (82) connected to either end face of the worm wheel main body (81) and contacting the positioning column (14);

the second rotating shaft (83) is connected with the other end face of the worm gear main body (81), the second rotating shaft (83) is provided with the external connection end, and the second rotating shaft (83) is rotationally connected with the shell (1).

6. A steering mechanism as claimed in claim 1, wherein: also comprises an anti-slip assembly (17) connected with the shell (1).

7. A window covering, comprising: a steering mechanism as claimed in any one of claims 1 to 6.

8. A window covering according to claim 7, further comprising a force saving device (106), said force saving device (106) comprising:

a housing (1061) connected to the window curtain body;

a cover (1062) adapted to the housing (1061);

a rotating shaft (1063) connected to the curtain body;

a positioning shaft (1064) connected to the housing (1061) and the cover (1062); and one end of the constant force spring (1065) is connected with the rotating shaft (1063).

9. A window covering 8 as in claim 8, further comprising a cord reel (104), the cord reel (104) comprising:

a mounting seat (1041) mounted on the curtain main body,

a turnover spring (1043) mounted on the mounting base (1041);

a rope reel assembly (1042) connected with the mounting seat (1041); one end is connected with the overturning spring (1043).

10. A window covering according to any of claims 7-9, further comprising one or more of a support rail (102), a drive shaft (103), a stopper (105), a hole-free mounting mechanism (107), a lift cord (108), a tilt cord (109), a vane (110), and a lower rail assembly (101).