CN214017041U - Driving wheel supporting structure and curtain opening and closing device - Google Patents

Abstract

The utility model discloses a drive wheel bearing structure, include: a support; an elastic connection portion; and a fixed block fixed on the base surface; the support and the elastic connecting part are arranged at two ends of the driving wheel, and the support is hinged with the fixing block; when external force acts on the driving wheel, the driving wheel can overturn towards the direction of the extrusion elastic connecting part around the rotating center formed by the support and the fixed block in a hinged manner, and the utility model also discloses a curtain opening and closing device. But drive wheel one side is installed elastically deformable's elastic connection portion and the support is installed to the opposite side, owing to receive elastic connection portion resilience effect for drive wheel and (window) curtain track continuously keep certain pressure, drive the (window) curtain ware reciprocating motion that makes a round trip on the track when the drive wheel rotates, simultaneously, through the skew of support restriction drive wheel front and back.

Description

Driving wheel supporting structure and curtain opening and closing device

Technical Field

The utility model relates to a house field, concretely relates to drive wheel bearing structure, still concretely relates to (window) curtain device that opens and shuts.

Background

In the household field, it is known to automatically open and close curtains by using an electric curtain machine. In the process of researching and implementing the curtain opening and closing device, the inventor finds that the curtain opening and closing device in the prior art has at least the following problems:

firstly, the curtain opening and closing device is internally provided with a driving wheel, pressure is required to exist between the driving wheel and the track in order that the driving wheel can drive the curtain opening and closing device to reciprocate on the track, and the elastic element is adopted to ensure the pressure to exist between the driving wheel and the track by utilizing the resilience force of the elastic element, but the problem that the driving wheel deviates along the movement direction and collides with the inner wall of the curtain opening and closing device in the moving process is easily caused by the elastic element.

In view of the above, it is desirable to develop a driving wheel supporting structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the prior art, the utility model discloses a main objective provides a drive wheel bearing structure, its skew along direction of motion skew direction through installing the support restriction drive wheel in drive wheel one side.

In order to achieve the above objects and other advantages in accordance with the present invention, there is provided a driving wheel support structure, including:

a support;

an elastic connection portion; and

a fixed block fixed on the base surface;

the bracket and the elastic connecting part are arranged at two ends of the driving wheel, and the bracket is hinged with the fixed block;

when external force acts on the driving wheel, the driving wheel can turn around a rotating center formed by the support and the fixed block in a hinged mode towards the direction of extruding the elastic connecting portion.

Preferably, the driving wheel comprises a rotating roller and a driver for driving the rotating roller to rotate;

the rotating roller is hollow inside and is opened at one side thereof to form an opening, the driver is arranged in the rotating roller hollow space and the fixed end thereof extends out of the opening;

the bracket is connected with the fixed end of the driver.

Preferably, one side of the bracket extends outwards to form a sleeve joint part, and the sleeve joint part is sleeved on the driver.

Preferably, the elastic piece is arranged on the base surface;

the elastic sheet extends into the driving wheel and extends to the lower part of the sleeve joint part, and the sleeve joint part is pressed on the elastic sheet.

Preferably, the bracket is provided with a through open part, and the open part is arranged at a position close to the sleeving part, so that the elastic sheet extends into the open part and is abutted against the sleeving part.

Preferably, a connecting groove is formed in the fixed block, a rotating pin is mounted on the support, and the rotating pin is mounted in the connecting groove, so that the support rotates around the axial direction of the rotating pin.

Preferably, the elastic connecting part comprises an elastic block and a bearing, the elastic block is mounted on a base surface, and the driving wheel is connected with the elastic block through the bearing.

Preferably, the rotating roller is hollow inside and two sides penetrate through to form a ring shape;

the driving wheel also comprises a rotary front cover, the rotary front cover is arranged on one side of the rotating roller, and the bearing is rotationally connected with the rotary front cover;

the driver drives the rotary front cover to rotate, so that the rotary roller is driven to rotate.

Preferably, the outer wall of the socket part is provided with a cover part which extends outwards to cover the opening.

On the other hand, the utility model also provides a device that opens and shuts of (window) curtain, include the drive wheel bearing structure as above-mentioned.

One of the above technical solutions has the following advantages or beneficial effects: including setting up support and the elastic connection portion in the drive wheel both sides, the support can drive the drive wheel upset to make and receive the compression of elastic connection portion atress, thereby elastic connection portion is to drive wheel reaction force, so that the pressure that keeps between drive wheel and track, simultaneously, the skew of support restriction drive wheel along direction of motion skew direction.

Drawings

Fig. 1 is a schematic perspective view of a driving mechanism according to an embodiment of the present invention;

fig. 2 is an exploded view of the drive mechanism according to one embodiment of the present invention;

fig. 3 is a cross-sectional view of a drive mechanism according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a bracket according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a curtain opening and closing device according to an embodiment of the present invention.

Description of the reference numerals

1. A drive mechanism;

11. a drive wheel; 111. a friction layer; 112. a driver; 113. a rotating roller; 114. rotating the front cover;

12. a support; 121. a cover portion; 1211. a transition section; 122. a guiding part; 123. a rotation pin portion; 124. a socket joint part; 125. a hollow part; 126. an open portion;

13. a spring plate; 131. an elastic support portion;

14. an elastic connection portion; 141. an elastic block; 142. a bearing;

15. a fixed block; 151. connecting grooves;

2. an opener body; 22. a guide wheel;

3. a slide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc. are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, "front and rear" corresponds to a straight direction, "circumferential" is along the inner side wall edge of the outer tub, which are relative concepts, and thus may be changed accordingly depending on the position thereof, the use state thereof, and therefore, these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

According to the utility model discloses an embodiment combines the demonstration of fig. 5, can see that, a (window) curtain device that opens and shuts, including the ware body 2 that opens and shuts, actuating mechanism 1 sets up inside the ware body 2 that opens and shuts, simultaneously, drive wheel 11 among the actuating mechanism 1 stretches out and contacts with slide rail 3 from the ware body 2 that opens and shuts, is provided with guide pulley 22 at the ware body 2 top that opens and shuts, specifically, guide pulley 22 is the annular, and guide pulley 22 cup joints at slide rail 3 to make this (window) curtain device that opens and shuts hang and establish on slide rail 3.

The driving wheel 11 rolls on the slide rail 3, so as to drive the curtain opening and closing device to reciprocate along the extension direction of the slide rail 3, and then the curtain opening and closing device drives the curtain to open and close; at present, current (window) curtain drive arrangement generally with the (window) curtain guide rail together the direct mount on the wall, bulky, with high costs, the installation is complicated, the maintenance is inconvenient, and the utility model discloses in the (window) curtain device that opens and shuts that provides simple structure is compact, and the cost is lower, stability is good, simple to operate, more importantly, through adding this (window) curtain device that opens and shuts and be convenient for become the (window) curtain structure of automatic opening and shutting with general (window) curtain structure improvement.

Although not shown in the figures of this embodiment, it should be understood that the sliding rail 3 is not limited to the cylindrical sliding rail shown in the figures, but the guide wheel 22 matching with the sliding rail 3 can change its shape according to the sliding rail 3, the main purpose of the guide wheel 22 is to limit the curtain opening and closing device on the sliding rail 3, limiting its position; for example, the channel of the sliding rail 3, the guide wheel 22 at least includes a protrusion extending into the notch of the channel to ensure the position of the curtain opening and closing device.

Referring to fig. 1 and 2, the driving mechanism 1 includes a driving wheel 11 and a driving wheel supporting structure, wherein the driving wheel supporting structure includes: a support 12;

an elastic connection portion 14; and

a fixing block 15 fixed on the base surface;

wherein, the bracket 12 and the elastic connecting part 14 are arranged at two ends of the driving wheel 11, and the bracket 12 is hinged with the fixed block 15;

when external force acts on the driving wheel 11, the driving wheel 11 can turn around a rotation center formed by hinging the bracket 12 and the fixed block 15 towards the direction of extruding the elastic connecting part 14; the elastic connecting portion 14 compresses to rebound the driving wheel 11 upwards, so that the driving wheel 11 is pressed on the sliding rail 3, and the driving wheel 11 and the sliding rail 3 continuously keep a certain pressure, so that the driving wheel 11 drives the curtain opening and closing device to move back and forth along the extending direction of the sliding rail 3 when rotating.

Meanwhile, the bracket 12 is a rigid structure, and the bracket 12 is connected with the driving wheel 11 through the bracket 12 to form a limiting structure; the support 12 is articulated with the fixed block 15, and the elastic deformation effect of the elastic connecting part 14 on one side makes the driving wheel 11 rotatable, and the driving wheel 11 is limited by the support 12 along the position on the moving direction in the moving process, so that the situation that the driving wheel 11 moves to generate deviation in the moving direction to cause collision with the opener body 2 is avoided.

As shown in fig. 3, the elastic connection portion 14 includes an elastic block 141 and a bearing 142, the elastic block 141 is mounted on the base surface, and the driving wheel 11 is connected to the elastic block 141 through the bearing 142.

The driving wheel 11 comprises a rotating roller 113 and a driver 112 for driving the rotating roller 113 to rotate;

the rotating roller 113 is hollow inside and opened at one side thereof to form an opening, and the driver 112 is disposed in the hollow space of the rotating roller 113 and has a fixed end thereof protruded from the opening; the bracket 12 is connected to the fixed end of the driver 112.

Further, the rotating roller 113 is hollow inside and both sides penetrate to form a ring shape; the driver 112 protrudes into the rotating roller 113;

the driving wheel 11 further comprises a rotary front cover 114, the rotary front cover 114 is mounted on one side of the rotating roller 113, and the bearing 142 is rotatably connected with the rotary front cover 114, so that the driving wheel 11 is connected with the elastic connecting part 14 to form an elastic supporting structure;

the driver 112 is arranged on the rotating roller 113, so that the volume of the whole driving wheel 11 is reduced, the structure of the driving wheel 11 in the opening and closing device body 2 is more compact, the volume of the whole curtain opening and closing device is reduced, the accommodating space reserved for the curtain opening and closing device is reduced, the structure of the whole device is simple and compact, and the stability is better.

The power output end of the driver 112 is connected with the driving rotary front cover 114, and the driver 112 drives the rotary front cover 114 to rotate so as to drive the rotating roller 113 to rotate, so that the driving wheel 11 partially rotates; meanwhile, the outer wall of the rotating roller 113 is wrapped with a friction layer 111, the friction layer 111 is in contact with the side wall of the sliding rail 3, and the friction force between the friction layer 111 and the side wall of the sliding rail 3 is increased, so that the driver 112 can roll on the sliding rail 3 conveniently; more specifically, the friction layer 111 has a certain elasticity, the driving wheel 11 is pressed against the slide rail 3, and the friction force between the friction layer 111 and the slide rail 3 can be further increased by elastic deformation.

Referring to fig. 4, as shown in detail, the bracket 12 includes a cover 121, a protrusion 122, a rotation pin 123 and a socket 124, and the cover 121, the protrusion 122, the rotation pin 123 and the socket 124 are integrally combined to form a main structure of the bracket 12, wherein the protrusion 122 is a supporting portion of the bracket 12 for supporting the connected driving wheel 11;

one side of the support 12 extends outward to form a socket portion 124, specifically, the socket portion 124 extends outward from one side wall of the extension portion 122, the socket portion 124 penetrates through a hollow portion 125 along the extending direction thereof, and the hollow portion 125 extends to a corresponding position on the extension portion 122 to form an opening; there is a gap between the driver 112 and the rotating roller 113, the sleeve portion 124 extends into the gap formed by the driver 112 and the rotating roller 113, the sleeve portion 124 is sleeved on the driver 112, the driver 112 is placed in the hollow portion 125, and the shape of the hollow portion 125 is consistent with the fixed end of the driver 112, so that the hollow portion 125 is fixedly connected with the driver 112.

The driving wheel supporting structure also comprises an elastic sheet 13, and the elastic sheet 13 is arranged on the base surface; an upward thrust is applied to the driving wheel 11 through the elastic sheet 13, so that the driving wheel 11 is pressed on the sliding rail 3, meanwhile, when the support 12 drives the driving wheel 11 to rotate, the driving wheel 11 tends to move downwards, so that the elastic sheet 13 is pressed by a force, and meanwhile, the elastic sheet 13 applies a resilience force to the driving wheel 11, so that the driving wheel 11 tends to return to the initial position.

The elastic sheet 13 extends into the driving wheel 11 and extends to the lower part of the sleeve joint part 124, and the sleeve joint part 124 is pressed on the elastic sheet 13; the bracket 12 is provided with a through open part 126; specifically, the open portion 126 is disposed on the guiding portion 122, and the open portion 126 is disposed at a position close to the sleeve portion 124, so that the elastic sheet 13 extends into the open portion 126 and is abutted to the sleeve portion 124.

A connecting groove 151 is provided in the fixed block 15, a rotation pin 123 is installed at an end position of the guide portion 122, and the rotation pin 123 is installed in the connecting groove 151, so that the support 12 rotates about an axial direction of the rotation pin 123.

The outer wall of the sleeve part 124 is provided with a cover part 121 which extends outwards to cover the opening, meanwhile, the cover part 121 is provided with a protrusion connected to the extending part 122 to form a transition section 1211, and the transition section 1211 is used for increasing the connection strength of the joint of the sleeve part 124 and the extending part 122.

The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.

While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (10)

1. A drive wheel support structure, comprising:

a support (12);

an elastic connection part (14); and

a fixing block (15) fixed to the base surface;

the support (12) and the elastic connecting part (14) are arranged at two ends of the driving wheel (11), and the support (12) is hinged with the fixing block (15);

when external force acts on the driving wheel (11), the driving wheel (11) can turn around a rotating center formed by hinging the bracket (12) and the fixed block (15) towards the direction of extruding the elastic connecting part (14).

2. The drive wheel support structure according to claim 1, wherein the drive wheel (11) includes a rotating roller (113) and a driver (112) that drives the rotating roller (113) to rotate;

the rotating roller (113) is hollow inside and is opened at one side thereof to form an opening, and the driver (112) is arranged in the hollow space of the rotating roller (113) and the fixed end thereof protrudes from the opening;

the bracket (12) is connected with the fixed end of the driver (112).

3. The drive wheel support structure of claim 2, wherein one side of the bracket (12) extends outwardly to form a socket (124), the socket (124) being fitted over the driver (112).

4. The drive wheel support structure according to claim 3, further comprising a resilient piece (13), the resilient piece (13) being mounted on a base surface;

the elastic sheet (13) extends into the driving wheel (11) and extends to the lower part of the sleeving part (124), and the sleeving part (124) is pressed on the elastic sheet (13).

5. The driving wheel supporting structure according to claim 4, wherein the bracket (12) is provided with a through opening portion (126), and the opening portion (126) is disposed at a position close to the sleeve portion (124), so that the elastic sheet (13) extends into the opening portion (126) and abuts against the sleeve portion (124).

6. The driving wheel support structure according to any one of claims 1 to 5, wherein a connection groove (151) is provided in the fixing block (15), a rotation pin portion (123) is mounted on the bracket (12), and the rotation pin portion (123) is mounted in the connection groove (151) so that the bracket (12) rotates about an axial direction of the rotation pin portion (123).

7. A drive wheel support structure according to claim 2, wherein said elastic connection portion (14) comprises an elastic block (141) and a bearing (142), said elastic block (141) being mounted on a base surface, said drive wheel (11) being connected to said elastic block (141) through said bearing (142).

8. The driving wheel supporting structure as set forth in claim 7, wherein the rotating roller (113) is hollow inside and penetrates both sides to form a ring shape;

the driving wheel (11) further comprises a rotary front cover (114), the rotary front cover (114) is installed on one side of the rotating roller (113), and the bearing (142) is in rotary connection with the rotary front cover (114);

the driver (112) drives the rotary front cover (114) to rotate, so that the rotary roller (113) is driven to rotate.

9. The drive wheel support structure according to claim 3, wherein a cover portion (121) extending outward to cover the opening is provided on an outer wall of the socket portion (124).

10. A curtain opening and closing device comprising a drive wheel support structure according to any one of claims 1 to 9.

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