CN113142958A - Curtain opening and closing device - Google Patents

Abstract

The invention belongs to the technical field of intelligent home furnishing, and particularly relates to a curtain opening and closing device, which comprises a shell and a host arranged on the shell; the shell is at least provided with a hanging mechanism; the hanging mechanism comprises a bracket, a moving assembly and a constant force spring; the constant force spring is arranged in the shell and can rotate around the axis of the constant force spring to stretch, and the first end of the bracket is inserted in the shell and connected with the constant force spring; the bracket can move up and down relative to the shell; the second end of the bracket extends out of the shell, and the moving component is arranged at the second end of the bracket and is used for movably hanging on a curtain guide piece, so that the guide piece is clamped between the moving component and the host; the host is used for driving the moving assembly to move along the guide piece; the utility model provides a (window) curtain ware that opens and shuts can be better adapted to the guide of thickness difference, has high suitability and practicality.

Description

Curtain opening and closing device

Technical Field

The invention belongs to the technical field of smart homes, and particularly relates to a curtain opening and closing device.

Background

The household curtain comprises a guide piece and a curtain; the top of the curtain is slidably connected to the guide. The curtain openers need to be installed on the guide and can move smoothly along the guide, so that the curtains can be folded or unfolded in the moving process, and the curtains can be opened or closed.

The existing curtain opening and closing device comprises a host machine and a hanging mechanism arranged on the host machine; the hanging mechanism is connected to the guide piece in a sliding mode, and the host machine is used for driving the hanging mechanism to move along the guide piece. In order to make the hanging mechanism be adaptable to curtain guides of different sizes and of various different types, the height position of the hanging mechanism is set to be an adjustable structure. Therefore, the hitching mechanism comprises a bracket, a roller and a spring. The first end of the support is inserted into the host, and a spring is arranged between the first end of the support and the host. The second end of the bracket extends out of the main machine, and the roller is rotatably arranged at the second end of the bracket. The spring is compressed by pulling the support, so that the height position of the roller is adjusted, the roller can be hung on the guide piece in an adaptive mode, the roller can be adapted to curtain guide pieces of different sizes and different types, and the adaptability is good.

However, the existing curtain openers have some defects, such as: the spring is a common spring, the length of the spring is different, the acting force (pulling force) of the spring to the roller is also different, the amount of the support compression spring is smaller for the thinner guide piece, the acting force provided by the spring is smaller, so that the host and the roller are connected to the guide piece in an over-loose manner, the host and the roller are easy to slip when moving along the guide piece, and the curtain cannot be pushed to move. And to thicker guide, support compression spring volume is great, and the effort that this spring provided is great for host computer and gyro wheel tension link in guide, and the frictional force between host computer and gyro wheel and the guide is too big, causes the host computer can't drive the gyro wheel and moves along the guide.

Disclosure of Invention

The invention aims to provide a curtain opener, aiming at solving the problem that the curtain opener in the prior art has small acting force provided by a spring for a thin guide piece, so that a main machine and a roller are connected with the guide piece too loosely, and the main machine and the roller are easy to slip when moving along the guide piece; and for thicker guide piece, the acting force provided by the spring is larger, so that the main machine and the roller are connected to the guide piece too tightly, and the technical problem that the main machine cannot drive the roller to move along the guide piece is caused.

In order to achieve the above object, the curtain opening and closing device provided by the embodiment of the invention comprises a shell and a host arranged on the shell; the shell is at least provided with a hanging mechanism; the hanging mechanism comprises a bracket, a moving assembly and a constant force spring; the constant force spring is arranged in the shell and can rotate around the axis of the constant force spring to stretch, and the first end of the bracket is inserted in the shell and connected with the constant force spring; the bracket can move up and down relative to the shell; the second end of the bracket extends out of the shell, and the moving component is arranged at the second end of the bracket and is used for movably hanging on a curtain guide piece, so that the guide piece is clamped between the moving component and the host; the host is used for driving the moving assembly to move along the guide piece.

Optionally, one end of the constant force spring is coiled into a telescopic coil, and the other end of the constant force spring is a connecting end; a constant force spring installation cavity is arranged in the shell, and the telescopic coil is horizontally installed in the constant force spring installation cavity; the top of at least one side of the shell is provided with a mounting hole communicated with the constant force spring mounting cavity, the first end of the support is a vertical end, and the vertical end is inserted in the mounting hole and connected with the connecting end.

Optionally, a horizontally distributed installation shaft is arranged in the constant force spring installation cavity, and the telescopic coil is rotatably sleeved on the installation shaft.

Optionally, a mounting groove is horizontally distributed in the constant force spring mounting cavity, a gap is formed in the side wall, close to the vertical end, of the mounting groove, the telescopic coil is accommodated in the mounting groove in a matched mode, and the connecting end penetrates through the gap to be connected with the vertical end.

Optionally, the connecting end is provided with a connecting hole in a penetrating manner, the end portion of the vertical end close to the connecting end is bent to form a hook, and the hook is hung in the connecting hole.

Optionally, the second end of the bracket is bent to form a bent end; the moving assembly comprises a first roller and a second roller; the first idler wheel and the second idler wheel are rotatably connected to the bent end, and the first idler wheel and the second idler wheel are arranged in an inverted V shape.

Optionally, a straight line formed by a projection of the curved end on a horizontal plane is arranged obliquely to an axis of the guide member, so that the first roller and the second roller mounted on the curved end are arranged obliquely to the axis of the guide member.

Optionally, the second end of the bracket is bent to form a horizontal end; the moving assembly comprises a third roller; the third roller is rotatably connected to the horizontal end, and a V-shaped groove is formed in the circumferential direction of the outer wall of the third roller.

Optionally, the housing includes a base and connecting seats detachably connected to two opposite sides of the base respectively; the host is arranged at the upper part of the base, and each connecting seat is at least provided with one hanging mechanism; the two opposite sides of the base are provided with accommodating grooves, and the two opposite sides of the accommodating grooves are provided with clamping grooves; the two opposite sides of the connecting seat are respectively provided with a buckle, the connecting seat is locally inserted into the accommodating groove, and the two buckles are correspondingly clamped with the two clamping grooves respectively.

Optionally, both opposite sides of the connecting seat are provided with key mounting grooves, the key mounting grooves are connected with keys in a sliding manner, and the keys can move along the depth direction of the key mounting grooves; a spring is arranged between the key mounting groove and the key, the buckle is arranged at one end of the key, which is far away from the spring, and the spring elastically pushes the buckle to be clamped in the clamping groove; the two opposite sides of the key mounting groove are respectively provided with a limiting cavity, the limiting cavity is close to the inner side wall of the opening of the key mounting groove and is a limiting table, the two opposite sides of the key are respectively provided with a limiting bulge, and the two limiting bulges are movably inserted into the two limiting cavities respectively. Under the pushing of the spring, the limiting bulge is abutted to the limiting table.

Compared with the prior art, one or more technical schemes in the curtain opener provided by the embodiment of the invention at least have one of the following technical effects:

the constant force spring is a spring which can keep constant elasticity in corresponding stroke, namely the elasticity of the constant force spring keeps constant in the process of stretching; therefore, for the thicker or thinner guide piece, when the bracket is pulled to adjust the height position of the moving assembly, the acting force of the constant force spring on the moving assembly is kept constant, so that the host machine and the moving assembly can keep the same and proper clamping force when clamped on the guide pieces with different thicknesses, the phenomenon that the curtain openers are installed too loosely or too tightly can not occur, and the curtain openers can be ensured to stably drive the curtain to be folded or unfolded; simultaneously, the (window) curtain ware that opens and shuts of this application can be better adapted in the guide of thickness difference, has high suitability and practicality, has effectively solved prior art's (window) curtain ware that opens and shuts and has had the installation too loose phenomenon of skidding or the installation too tight phenomenon of running motionless that appears.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a view showing a state of use of the curtain opener according to the first embodiment of the present invention.

Fig. 2 is a schematic structural view of a curtain opener according to a first embodiment of the present invention.

Fig. 3 is a sectional view of the curtain opener according to the first embodiment of the present invention.

Fig. 4 is an exploded view of the curtain opener according to the first embodiment of the present invention.

Fig. 5 is an exploded view of a first partial structure of the curtain opener according to the first embodiment of the present invention.

Fig. 6 is a partial structural schematic view of a curtain opener according to a second embodiment of the present invention.

Fig. 7 is a partial structural view of a curtain opener according to a third embodiment of the present invention.

Fig. 8 is a second partial exploded view of the window covering opener according to the first embodiment of the present invention.

Fig. 9 is a top view of fig. 1 of the present invention.

Fig. 10 is a first partial structural view of a curtain opener according to a first embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the constant force spring mounting structure comprises a shell 100, an inner cavity 101, a battery 102, a circuit board 103, a constant force spring mounting cavity 110, a mounting shaft 111, a shaft sleeve 113, a cylindrical mounting groove 115, a notch 116, a mounting hole 120, a sliding groove 121, an avoiding groove 122, a base 150, a receiving groove 151, a clamping groove 152, a connecting seat 160, a key mounting groove 161, a limiting cavity 162, a connecting shell 165, a connecting cover 166, a key 170, a buckle 171, a positioning column 172, a limiting protrusion 173, a pressing part 174 and a spring 180;

the device comprises a main machine 200, a driving piece 210, a mounting seat 211, a driving wheel 220 and a driving wheel bearing 221;

the hanging mechanism 300, a bracket 310, a vertical end 311, a hook 311a, an inclined block 311b, a bent end 312, a horizontal end 313, an arc-shaped section 314, a moving component 320, a first roller 321, a second roller 322, a third roller 323, a V-shaped groove 323a, a constant force spring 330, a telescopic coil 331, a connecting end 332, a connecting hole 332a, a sliding block 340, a sliding part 341 and an inclined groove 342.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be illustrative of the embodiments of the present invention, and should not be construed as limiting the invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In one embodiment of the present invention, referring to fig. 1 and 2, a curtain opening and closing device is provided, which includes a housing 100 and a main unit 200 disposed on the housing 100. The housing 100 is provided with at least one hanging mechanism 300.

Referring to fig. 2, 4 and 5, the hitch mechanism 300 includes a bracket 310, a moving assembly 320 and a constant force spring 330. The constant force spring 330 is installed in the housing 100 and can rotate around its axis to extend and retract, and the first end of the bracket 310 is inserted into the housing 100 and connected to the constant force spring 330. The bracket 310 can move up and down relative to the housing 100, that is, the external force pulls the bracket 310 up, and the constant force spring 330 is stretched; after the external force is removed, the constant force spring 330 will elastically return to contract, thereby moving the support 310 downward.

Referring to fig. 2, 4 and 5, the second end of the bracket 310 extends out of the housing 100, and the moving component 320 is mounted at the second end of the bracket 310 and is used for movably hanging on the curtain guide 10, so that the guide 10 is clamped between the moving component 320 and the main unit 200. The main body 200 is used for driving the moving component 320 to move along the guiding element 10, thereby driving the curtain on the guiding element 10 to fold or unfold during the moving process, and realizing the opening or closing of the curtain.

It will be appreciated that the constant force spring 330 is a mature existing part, such as: constant force spring, constant force spring member, etc. all refer to the constant force spring 330 described in the application. Namely, the constant force spring 330 is a spring capable of maintaining a constant elasticity in a corresponding stroke, namely, the constant force spring 330 maintains a constant elasticity during the expansion and contraction process. The constant force described in the application does not mean that the force magnitude does not change a little in an ideal state, but means that the force magnitude changes in a small range and is substantially close to constant, and the performance of the constant force spring 330 is related to the processing precision and the processing technology thereof.

Referring to fig. 1, 2, 4 and 5, for a thicker or thinner guide 10, when the bracket 310 is pulled to adjust the height position of the moving assembly 320, the acting force of the constant force spring 330 on the moving assembly 320 is kept constant, so that the main frame 200 and the moving assembly 320 can keep the same and proper clamping force when clamped on the guide 10 with different thicknesses, the phenomenon of too loose or too tight installation of the curtain openers can not occur, and the curtain openers can stably drive the curtain to fold or unfold; simultaneously, the (window) curtain ware that opens and shuts of this application can be better adapted in the guide 10 that the thickness is different, has high suitability and practicality, has effectively solved the (window) curtain ware that opens and shuts of prior art and has had the installation too loose phenomenon of skidding or the installation too tight phenomenon of running motionless that appears.

In another embodiment of the present invention, referring to fig. 2 and 3, the main body 200 includes a driving member 210 and a driving wheel 220. The driving wheel 220 is mounted on the housing 100 and partially exposed out of the housing 100, the driving wheel 220 is configured to be attached to an outer wall of the guide 10, and the driving member 210 is disposed in the housing 100 and configured to drive the driving wheel 220 to rotate, so that the driving wheel 220 rolls along the guide 10.

It will be appreciated that when the guide 10 is cylindrical, the drive wheel 220 abuts against the circumferential side wall of the guide 10. When the guide is rectangular in cross section, the driving wheel 220 is attached to the bottom wall of the guide.

Referring to fig. 2 and 3, an inner cavity 101 is formed in the housing 100, the driving wheel 220 is rotatably connected to the housing 100 and at least partially exposed out of the inner cavity 101, and the portion of the driving wheel 220 exposed out of the inner cavity is attached to the outer wall of the guide 10.

Referring to fig. 2 and 3, friction exists between the driving wheel 220 and the guide 10, the driving wheel 220 can move along the guide 10 under the driving of the driving part 210, and the host 200 drives the hanging mechanism 300 to move along the guide 10 and push the curtain 110 mounted on the guide 10, so as to realize electric opening and closing of the curtain 110, without manual opening and closing of the curtain, and the operation is convenient.

Referring to fig. 2 and 3, the driving member 210 is a motor, and the driving member 210 is disposed coaxially with the driving wheel 220 to facilitate smooth movement of the driving wheel 220 and to make full use of space. The motor is fixed in inner chamber 101 through mount pad 211, and drive wheel 220 is the hollow wheel, and drive wheel 220 cup joints on the motor and is connected with the motor rotation through drive wheel bearing 221. The rotating shaft of the motor is connected with one end of the driving wheel 220 and drives the driving wheel 220 to rotate.

Also, in other embodiments, driver 210 may also be configured as a rotary cylinder.

In another embodiment of the present invention, referring to fig. 2, 4 and 5, one end of the constant force spring 330 is coiled into a coil 331 and the other end of the constant force spring 330 is a connection end 332.

Referring to fig. 4 and 5, a constant force spring installation cavity 110 is formed in the housing 100, and the flexible roll 331 is horizontally installed in the constant force spring installation cavity 110. The top of at least one side of the casing 100 is vertically provided with a mounting hole 120 communicated with the constant force spring mounting cavity 110, the first end of the bracket 310 is a vertical end 311, and the vertical end 311 is inserted into the mounting hole 120 and connected with the connecting end 332, so that the structure is compact.

In another embodiment of the present invention, referring to fig. 4 and 5, a horizontal mounting shaft 111 is disposed in the constant force spring mounting cavity 110, and the retractable roll 331 is rotatably sleeved on the mounting shaft 111. When the constant force spring 330 performs the stretching movement, the stretching coil 331 rotates on the mounting shaft 111, the movement is stable, and the shaking phenomenon does not occur.

Further, referring to fig. 4 and 5, the two opposite sides of the constant force spring mounting cavity 110 are provided with insertion holes (not shown), and two ends of the mounting shaft 111 are respectively adapted to be inserted into the two insertion holes, so that the mounting shaft 111 is stably mounted in the constant force spring mounting cavity 110, and the assembly is convenient.

Preferably, referring to fig. 4 and 5, a shaft sleeve 113 is disposed on the mounting shaft 111, the telescopic coil 331 is sleeved on the shaft sleeve 113, and by disposing the shaft sleeve 113, when the telescopic coil 331 rotates, a friction force between the telescopic coil 331 and the shaft sleeve 113 is small, so that the telescopic coil 331 rotates smoothly, the telescopic coil 331 is not easily worn, and the service life of the constant force spring 330 is prolonged.

In another embodiment of the present invention, referring to fig. 4 and 6, a cylindrical mounting groove 115 is horizontally distributed in the constant force spring mounting cavity 110, a gap 116 is formed in a side wall of the cylindrical mounting groove 115 near the vertical end 311, the telescopic coil 331 is accommodated in the cylindrical mounting groove 115 in a fitting manner, and the connecting end 332 passes through the gap 116 and is connected with the vertical end 311, so that the installation is convenient. Meanwhile, when the constant force spring 330 performs the telescopic motion, the telescopic coil 331 rotates in the cylindrical mounting groove 115, the motion is stable, and the shaking phenomenon cannot occur.

In another embodiment of the present invention, referring to fig. 5 and 6, the connection end 332 is provided with a connection hole 332a through the connection end 332, the end of the vertical end 311 close to the connection end 332 is bent to form a hook 311a, and the hook 311a is hooked to the connection hole 332a, so that the vertical end 311 and the connection end 332 are detachably connected, and the installation is convenient. Meanwhile, due to the detachable arrangement, when the constant-force spring 330 or the support 310 is damaged after being used for a long time, only the constant-force spring 330 or the support 310 needs to be replaced, the whole body does not need to be replaced, and the repeated use of resources is facilitated.

In another embodiment of the present invention, referring to fig. 5 and 6, a sliding block 340 is disposed in the middle of the vertical end 311, and the sliding block 340 is slidably connected to the mounting hole 120. Through setting up slider 340, make support 310 smoothly move up and down along mounting hole 120, and the motion is stable, and is difficult for crooked.

Further, referring to fig. 5 and 6, the two opposite sides of the mounting hole 120 are vertically provided with the sliding grooves 121, the two opposite sides of the sliding block 340 are provided with the sliding portions 341, and the two sliding portions 341 are slidably connected to the two sliding grooves 121, so that the sliding block 340 can stably move up and down along the sliding grooves 121.

In another embodiment of the present invention, referring to fig. 1, 5 and 6, the second end of the bracket 310 is bent to form a bent end 312. The curved end 312 is in the shape of an inverted "V". The moving assembly 320 includes a first roller 321 and a second roller 322. The first roller 321 and the second roller 322 are rotatably connected to the bending end 312, and the first roller 321 and the second roller 322 are disposed in an inverted "V" shape. When the curtain guide 10 is installed, the curtain guide 10 is clamped between the first roller 321, the second roller 322 and the driving wheel 220 of the main machine 200, and the first roller 321 and the second roller 322 move (roll) along the curtain guide 10 under the driving of the driving wheel 220. The first roller 321 and the second roller 322 are arranged in an inverted V shape, so that the first roller 321 and the second roller 322 can be suitable for being hung on different types and sizes of guide members 10, and the adaptability is high.

Preferably, referring to fig. 1, 5 and 6, an included angle between an axis of the first roller 321 and an axis of the second roller 322 is 90 ° to 110 °, the included angle may be 90 ° or 110 °, and more preferably 95 °, so that the first roller 321 and the second roller 322 can be stably hung on the curtain guide 10, the curtain guide 10 having a stepped telescopic type can easily roll over without rotating around the guide 10, and the included angle is appropriate in size, so that the first roller 321 and the second roller 322 cannot slip out of the guide 10 during the movement of the curtain opener along the guide 10, and the structure is stable.

Further, referring to fig. 1 and 5, the bracket 310 further has an arc-shaped section 314, both ends of the arc-shaped section 314 are respectively connected with the bent end 312 and the vertical end 311, the bent end 312 and the arc-shaped section 314 are substantially hook-shaped, so that the first roller 321 and the second roller 322 are hung on the guide 10, and meanwhile, the arc-shaped section 314 provides an escape space for the guide 10 so that the bracket 310 does not interfere with the guide 10.

Further, in some embodiments, the curved end 312 is further provided with a protective shell, the protective shell is in an inverted "V" shape, two clearance grooves are formed through the protective shell, the first roller 321 and the second roller 322 are respectively movably accommodated in the two clearance grooves, and one sides of the first roller 321 and the second roller 322 close to the guide 10 respectively extend out of the two clearance grooves, so that the first roller 321 and the second roller 322 can be abutted to the guide 10. In the process that the first roller 321 and the second roller 322 drive the hanging ring or the hook to move along the guide 10, the first roller 321 and the second roller 322 are protected by the protective shell, and the hanging ring, the hook and the curtain are not easy to touch the first roller 321 and the second roller 322, so that the roller is prevented from being clamped.

Preferably, referring to fig. 9 and 10, a straight line a formed by a projection of the bent end 312 on a horizontal plane is disposed to be inclined with respect to an axis B of the guide 10, and the first and second rollers 321 and 322 mounted on the bent end 312 are disposed to be inclined with respect to the axis B of the guide 10. With the above arrangement, when the first roller 321 and the second roller 322 move along the guide 10, the first roller 321 and the second roller 322 can roll over the guide 10 in tandem or in tandem, which is favorable for smoothly passing through the stepped guide 10 (telescopic rod) without clamping the rod.

Specifically, referring to fig. 9 and 10, one end of the slider 340 is provided with an inclined groove 342 along an axial direction thereof (i.e., a direction in which the slider 340 moves along the slide groove 121), and the inclined groove 342 is inclined from the axis B of the guide 10. Vertical end 311 runs through inclined groove 342, and the middle part of vertical end 311 is equipped with the slope piece 311B of adaptation joint in inclined groove 342, makes support 310 and the slope of the axis B setting of guide 10 to make the straight line A that the projection of crooked end 312 on the horizontal plane formed and the slope of the axis B setting of guide 10, connect stably, the equipment of being convenient for.

In another embodiment of the present invention, referring to FIG. 7, the second end of the bracket 310 is bent to form a horizontal end 313. The moving assembly 320 includes a third wheel 323. The third roller 323 is rotatably connected to the horizontal end 313, and a V-shaped groove 323a is circumferentially formed in the outer wall of the third roller 323. When the curtain guide 10 is installed, the curtain guide 10 is clamped between the V-shaped groove 323a of the third roller 323 and the transmission wheel 220 of the main machine 200, and the third roller 323 moves (rolls) along the guide 10 under the driving of the transmission wheel 220.

Referring to fig. 7, the third roller 323 can be adapted to be hung on different types and sizes of the guide member 10 by providing the V-shaped groove 323a, with a high adaptability. Meanwhile, the structural mode that the V-shaped groove 323a is formed in the third roller 323 is convenient to install, simple in structure and cost-saving compared with the structural mode that two rollers are adopted.

Further, referring to fig. 7, the bracket 310 further has an arc-shaped section 314, both ends of the arc-shaped section 314 are respectively connected with the horizontal end 313 and the vertical end 311, the horizontal end 313 and the arc-shaped section 314 are substantially in a hook shape, so that the third roller 323 can be conveniently hung on the guide 10, and meanwhile, the arc-shaped section 314 provides an escape space for the guide 10, so that the bracket 310 does not interfere with the guide 10.

Specifically, referring to fig. 1 and 4, the top of the casing 100 is provided with an avoiding groove 122 communicated with the upper end of the mounting hole 120, and the arc-shaped section 314 can be accommodated in the avoiding groove 122, so that the overall structure of the curtain opening and closing device is more compact.

In another embodiment of the present invention, referring to fig. 2 and 4, the housing 100 includes a base 150, and connection bases 160 detachably connected to opposite sides of the base 150, respectively. The cavity 101 is disposed on the base 150, the host 200 is disposed on the upper portion of the base 150, and each connecting seat 160 has at least one hanging mechanism 300.

Specifically, referring to fig. 2 and 4, each connecting seat 160 is correspondingly provided with a hooking mechanism 300, but not limited to the above number. The two connection seats 160 are disposed on the left and right sides of the base 150, so that the housing 100 has a substantially symmetrical structure, which is beneficial to the stable operation of the main body 200, and reduces the shaking caused by unstable gravity center, and has a stable structure.

In other embodiments, the connection seat 160 may also be connected to one side of the base 150.

Further, referring to fig. 4, two opposite sides of the base 150 are provided with a receiving groove 151, and two opposite sides of the receiving groove 151 are recessed with a locking groove 152. The two opposite sides of the connecting seat 160 are both provided with a buckle 171 in a protruding manner, the connecting seat 160 is partially inserted into the accommodating groove 151, and the two buckles 171 are correspondingly clamped with the two clamping grooves 152 respectively, so that the connecting seat 160 and the base 150 can be detachably and fixedly connected. The connecting seat 160 and the base 150 are detachably arranged, so that the curtain opener can be conveniently assembled, and when the hanging mechanism 300 on the connecting seat 160 or the connecting seat 160 is damaged due to long-term use, the connecting seat 160 or the hanging mechanism 300 is only required to be replaced, the whole shell 100 is not required to be replaced, and the repeated use of resources is facilitated.

Further, referring to fig. 4 and 8, key installation grooves 161 are concavely formed on two opposite sides of the connection seat 160, the key installation grooves 161 are slidably connected with keys 170, and the keys 170 can move along the depth direction of the key installation grooves 161. Specifically, the key 170 is fitted into the key installation groove 161, and the key 170 can stably move along the key installation groove 161 by being pushed by an external force.

Referring to fig. 8, a spring 180 is disposed between the bottom of the key mounting groove 161 and the key 170, the buckle 171 is disposed at an end of the key 170 away from the spring 180, the buckle 171 exposes the key mounting groove 161, and the spring 180 elastically pushes the buckle 171 to be connected to the clamping groove 152, so that the connecting seat 160 and the base 150 can be detachably connected to each other in a clamped manner, and the clamping is firm. During disassembly, the button 170 is pressed by external force and the spring 180 is compressed, so that the buckle 171 is driven to be away from the clamping groove 152 and separated from the clamping with the clamping groove 152, the connecting seat 160 is disassembled from the base 150, and the operation is convenient.

Further, referring to fig. 8, the bottom of the key installation groove 161 and one end of the key 170 close to the spring are both provided with positioning columns 172, two ends of the spring 180 are respectively adapted to be sleeved on the two positioning columns 172, the spring 180 is not easy to be cheap or inclined when doing telescopic movement, and the installation is stable.

Further, referring to fig. 8, the two opposite sides of the key mounting groove 161 are both provided with a limiting cavity 162, the inner side wall of the limiting cavity 162 close to the opening of the key mounting groove 161 is a limiting platform, the two opposite sides of the key 170 are both provided with a limiting protrusion 173, and the two limiting protrusions 173 are movably inserted into the two limiting cavities 162 respectively. Under spring 180's ejection, spacing arch 173 butt spacing platform plays limiting displacement, prevents that button 170 from droing in the button mounting groove 161 under the effect of spring 180 thrust, prevents that button 170 from losing, stable in structure, reasonable in design.

Furthermore, referring to fig. 8, the pressing portion 174 is convexly disposed on the side of the buckle 171 of the key 170, and the pressing portion 174 is exposed out of the key mounting groove 161 and the connecting seat 160, so that a user can press the pressing portion 174 to drive the key 170 to move, and the key 170 is convenient to operate and high in practicability.

In other embodiments, the connecting base 160 and the base 150 may be connected by a screw or a screw fastener, instead of the detachable clamping manner.

In another embodiment of the present invention, referring to fig. 5, the connection socket 160 includes a connection housing 165, and a connection cover 166 adapted to cover the connection housing 165. The connection housing 165 is installed in the receiving groove 151, and the connection cover 166 is located outside the receiving groove 151. The constant force spring mounting cavity 110 and the mounting hole 120 are formed between the connection housing 165 and the connection cover 166, an upper opening of the mounting hole 120 extends to the top of the connection housing 165, and two key mounting grooves 161 are formed at opposite sides of the connection housing 165. The connecting seat 160 is formed by combining the connecting shell 165 and the connecting cover 166, so that the connecting seat 160 can be conveniently processed, and meanwhile, the bracket 310 and the constant force spring 330 can be conveniently mounted on the connecting shell 165, so that the production and assembly are convenient.

Specifically, the connection shell 165 may be fixedly connected to the connection cover 166 by clipping, screwing, bonding, or the like.

In another embodiment of the present invention, referring to fig. 3, a battery 102 is further disposed in the inner cavity 101, and the battery 102 is electrically connected to the driving member 210 for supplying electric power to the driving member 210.

Referring to fig. 3, a circuit board 103 is further disposed in the inner cavity 101, and the battery 102 and the driving member 210 are electrically connected to the circuit board 103. In this embodiment, the circuit board 103 may be configured by using an integrated chip according to actual production requirements, and since the circuit board 103 belongs to a technology molded and mature in the prior art, the working principle of how to control the curtain opener by the circuit board 103 should be known and mastered by those skilled in the art, and thus the control principle of the invention is not described herein again.

The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the present invention pertains, the architecture form can be flexible and varied without departing from the concept of the present invention, and a series of products can be derived. But rather a number of simple derivations or substitutions are made which are to be considered as falling within the scope of the invention as defined by the appended claims.

Claims (10)

1. The curtain opening and closing device comprises a shell and a host arranged on the shell; the shell is at least provided with a hanging mechanism; the hanging mechanism is characterized by comprising a bracket, a moving assembly and a constant force spring; the constant force spring is arranged in the shell and can rotate around the axis of the constant force spring to stretch, and the first end of the bracket is inserted in the shell and connected with the constant force spring; the bracket can move up and down relative to the shell; the second end of the bracket extends out of the shell, and the moving component is arranged at the second end of the bracket and is used for movably hanging on a curtain guide piece, so that the guide piece is clamped between the moving component and the host; the host is used for driving the moving assembly to move along the guide piece.

2. The curtain opener according to claim 1, wherein: one end of the constant force spring is spirally wound into a telescopic coil, and the other end of the constant force spring is a connecting end; a constant force spring installation cavity is arranged in the shell, and the telescopic coil is horizontally installed in the constant force spring installation cavity; the top of at least one side of the shell is provided with a mounting hole communicated with the constant force spring mounting cavity, the first end of the support is a vertical end, and the vertical end is inserted in the mounting hole and connected with the connecting end.

3. The window covering opener according to claim 2, wherein: the constant force spring installation cavity is internally provided with a horizontally distributed installation shaft, and the telescopic coil is rotatably sleeved on the installation shaft.

4. The window covering opener according to claim 2, wherein: the constant force spring mounting cavity is internally provided with a mounting groove which is horizontally distributed, a gap is arranged on the side wall of the mounting groove close to the vertical end, the telescopic coil is accommodated in the mounting groove in a matching way, and the connecting end penetrates through the gap to be connected with the vertical end.

5. The window covering opener according to claim 2, wherein: the connecting end penetrates through the connecting hole, the vertical end is close to the end portion of the connecting end and is bent to form a hook, and the hook is hung in the connecting hole.

6. The curtain opener according to any one of claims 1 to 5, wherein: the second end of the bracket is bent to form a bent end; the moving assembly comprises a first roller and a second roller; the first idler wheel and the second idler wheel are rotatably connected to the bent end, and the first idler wheel and the second idler wheel are arranged in an inverted V shape.

7. The curtain opener according to claim 6, wherein: a straight line formed by the projection of the bent end on the horizontal plane is obliquely arranged with the axis of the guide piece, so that the first roller and the second roller which are arranged on the bent end are obliquely arranged with the axis of the guide piece.

8. The curtain opener according to any one of claims 1 to 5, wherein: the second end of the bracket is bent to form a horizontal end; the moving assembly comprises a third roller; the third roller is rotatably connected to the horizontal end, and a V-shaped groove is formed in the circumferential direction of the outer wall of the third roller.

9. The curtain opener according to any one of claims 1 to 5, wherein: the shell comprises a base and connecting seats which are detachably connected to two opposite sides of the base respectively; the host is arranged at the upper part of the base, and each connecting seat is at least provided with one hanging mechanism; the two opposite sides of the base are provided with accommodating grooves, and the two opposite sides of the accommodating grooves are provided with clamping grooves; the two opposite sides of the connecting seat are respectively provided with a buckle, the connecting seat is locally inserted into the accommodating groove, and the two buckles are correspondingly clamped with the two clamping grooves respectively.

10. The curtain opener according to claim 9, wherein: the two opposite sides of the connecting seat are respectively provided with a key mounting groove, the key mounting grooves are connected with keys in a sliding manner, and the keys can move along the depth direction of the key mounting grooves; a spring is arranged between the key mounting groove and the key, the buckle is arranged at one end of the key, which is far away from the spring, and the spring elastically pushes the buckle to be clamped in the clamping groove; the two opposite sides of the key mounting groove are respectively provided with a limiting cavity, the limiting cavity is close to the inner side wall of the opening of the key mounting groove and is a limiting table, the two opposite sides of the key are respectively provided with a limiting bulge, and the two limiting bulges are movably inserted into the two limiting cavities respectively. Under the pushing of the spring, the limiting bulge is abutted to the limiting table.

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