CN210483497U - Rolling curtain - Google Patents

Abstract

The utility model relates to a furling curtain, which comprises a curtain body and two fixing parts, wherein each fixing part comprises a platy fixing part body, the fixing part body is provided with a first surface which is attached to an installation object and a second surface which is opposite to the first surface, the second surface is provided with a clamping groove which is arranged along the vertical direction, the upper end of the clamping groove is an open end, the lower end of the clamping groove is a closed end, and the fixing part body is also provided with at least two locking holes; the curtain body includes an central siphon, the (window) curtain spare and two pin joint seats of establishing on this central siphon of book, and two pin joint seats are located the central siphon both ends respectively, a pin joint axle has on the pin joint seat, and this pin joint axle wears to locate in the central siphon and set up and the interlock with the central siphon tight fit, and still all have on the pin joint seat with the fixture block of draw-in groove phase-match setting, the fixture block can inlay and establish to the draw-in groove of mounting in to borrow the gravity of curtain body and make this curtain body install on the installation object, with the inconvenient problem of current roll-up (window) curtain installation of solution.

Description

Rolling curtain

Technical Field

The utility model relates to a (window) curtain field specifically relates to a roll-up (window) curtain.

Background

The curtain is applied to the window, and when light was too strong, the curtain blockked sunshine and directly penetrated indoor to increase indoor travelling comfort, when not enough, pull open the curtain in order to increase indoor brightness, and then the curtain had the usage that the protection privacy was again had and house decoration is pleasing to the eye.

The structure of the curtain disclosed in CN204306607U, comprising two fixing brackets, a curtain sheet unit and a driving unit, wherein the curtain structure achieves the state of unfolding and folding the curtain sheet unit through the driving unit, and the driving unit is mainly formed by rotating and twisting the elastic cord by the linking member to have a folding force, and further counter-balances and restrains the weight member of the curtain body, thereby increasing the accuracy of the curtain positioning, and having the advantages of simple and convenient assembly force, and effectively reducing the cost of the whole structure; furthermore, the user can directly push and pull the counterweight to roll up or unfold the curtain, thus forming a use state without a pull rope and a section. However, the existing furling curtain of the type is complex in installation process and has the following defects: when the curtain sheet unit and the fixing bracket are installed, the curtain sheet unit and the fixing bracket need to be installed together, so that the positioning and the fixing of the fixing bracket are not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a roll-up curtain to solve the inconvenient problem of current roll-up curtain installation.

The specific scheme is as follows:

a furling curtain, which comprises a curtain body and two fixing pieces, wherein,

the fixing piece comprises a plate-shaped fixing piece body, the fixing piece body is provided with a first surface attached to an installation object and a second surface opposite to the first surface, the second surface is provided with a clamping groove which is formed in the vertical direction, the upper end of the clamping groove is an open end, the lower end of the clamping groove is a closed end, and the fixing piece body is further provided with at least two locking holes;

the curtain body includes an central siphon, the (window) curtain spare of establishing on this central siphon and two pin joint seats, and two pin joint seats are located the central siphon both ends respectively, a pin joint axle has on the pin joint seat, and this pin joint axle wears to locate in the central siphon and set up and the interlock with the central siphon tight fit, and still all have on the pin joint seat with the fixture block of draw-in groove phase-match setting, the fixture block can inlay and establish to the draw-in groove of mounting to borrow the gravity of curtain body and make this curtain body install on the installation object.

Furthermore, a side face attached to the second face of the fixing piece body is arranged on the pin joint seat, the clamping block is wing plates located on two sides of the side face in the horizontal direction, and the clamping groove is provided with a yielding opening matched with the pin joint seat.

Furthermore, the wing plate and the clamping groove are arranged in a clearance fit mode.

Furthermore, the locking hole on the fixing piece body is a strip-shaped through hole which extends along the horizontal direction.

Furthermore, a plurality of ribs which are convexly arranged on the axial direction of the pin joint are arranged on the outer wall surface of the pin joint shaft, and the ribs are arranged in interference fit with the inner hole wall of the shaft tube.

Further, one of the two pivoting seats is an automatic winding device, which comprises:

the spring coiling box comprises a box body and a spiral spring positioned and installed in the box body, and the outer end part of the spiral spring is fixedly connected with the box body;

the positioning assembly comprises a rotating seat, a track seat and a ball, wherein the rotating seat is hollow and tubular, an axial groove is concavely formed in the inner wall surface of the rotating seat, the track seat is arranged in the rotating seat in a penetrating manner, two communicated first tracks and second tracks are concavely formed in the outer wall surface of the track seat, a plurality of guide blocks are arranged between the two tracks, the ball is movably arranged between the axial groove of the rotating seat and the track seat, and when the rotating seat rotates, the ball is controlled to move along the axial groove through the axial groove and is switched to move in the first tracks and the second tracks by matching with the guide blocks;

and one end of the rotating shaft is movably arranged in the center of the spiral spring in the box body in a penetrating manner and is fixedly connected with the inner end part at the center of the spiral spring, and the other end of the rotating shaft is movably arranged in the track seat in a penetrating manner and is in driving connection with the rotating seat.

Further, defining: when the curtain is pulled out, the rotating seat rotates clockwise, and when the curtain is rolled up, the rotating seat rotates anticlockwise; the outer wall surface of the track seat is provided with an arc section track which is concavely arranged on the radial direction of the track seat and switching areas which are communicated with two ends of the arc section track, a guide block which divides the switching areas into a third track and a fourth track is arranged in each switching area, the third track is provided with a notch which is concavely arranged in the anticlockwise direction, the third track and the arc section track form a first track, and the fourth track and the arc section track form a second track; when the rotating seat rotates clockwise, the first track is provided with a guide surface for guiding the ball to the first track, and when the rotating seat rotates anticlockwise, the second track is provided with a guide surface for guiding the ball to the second track.

Furthermore, the track seat is of a hollow tubular structure, a torsion spring is sleeved in the track seat, one end of the torsion spring is fixedly arranged on the track seat, and the other end of the torsion spring is fixedly arranged on the box body.

Furthermore, the box body is provided with a shaft sleeve part extending into the track seat, and the torsion spring is sleeved on the outer wall surface of the shaft sleeve part.

Furthermore, the other of the two pivoting seats is a driven furling device, and a damper is arranged in the pivoting shaft of the pivoting seat.

Compared with the prior art, the utility model provides a roll-up (window) curtain has following advantage: the utility model provides an installation of roll-up (window) curtain adopts the assembly mode of fixture block and draw-in groove to realize, during the installation, only needs to install two mounting location earlier on the wall, then goes into the fixture block card on (window) curtain body both ends and can accomplish the installation of this roll-up (window) curtain to the draw-in groove of two mountings in, and the installation is simple and convenient, and installation time and installation cost can be saved in easy operation.

Drawings

Fig. 1 shows a schematic view of a roll-up window covering.

Figure 2 shows a schematic view of a curtain body.

Figure 3 shows a schematic view of the fixture.

Fig. 4 is a schematic view of the first pivot base.

Fig. 5 is a schematic view of the second pivot base.

Fig. 6 shows an exploded view of the automatic retraction device.

Fig. 7 shows a cross-sectional view of the automatic retraction device.

Fig. 8 shows a perspective view of the rail base of the automatic retracting device.

Fig. 9 shows a schematic view of the rail base of the automatic retraction device in a first view direction.

Fig. 10 shows a schematic view of the rail base of the automatic retraction device in a second view direction.

Fig. 11 shows a schematic view of the rail base of the automatic retraction device in a third view direction.

Fig. 12 is a schematic view showing the movement of the balls on the rail housing when the rotary housing rotates clockwise.

Fig. 13 is a schematic view showing the movement of the balls on the rail seat when the rotation seat is fixed with respect to the rail seat.

Fig. 14 shows a schematic view of the ball moving on the rail housing when the rotary housing is rotated counterclockwise.

Detailed Description

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

The present invention will now be further described with reference to the accompanying drawings and detailed description.

Example 1

As shown in fig. 1 to 5, the present embodiment provides a roll-up curtain, which includes a curtain body 1 and two fixing pieces 2, wherein the curtain body 1 is embedded in the fixing pieces 2 to be fixed.

Specifically, the fixing element 2 includes a plate-shaped fixing element body 20, the fixing element body 20 has a first surface 200 attached to the installation object and a second surface 201 opposite to the first surface, the second surface 201 of the fixing element body 20 has a clamping groove 21 opened in the vertical direction, the upper end of the clamping groove 21 is an open end, and the lower end is a closed end. The fixing member body 20 further has at least two locking holes 22, and the fixing member body 20 is fixed to the wall by passing a screw through the at least two locking holes 22. In the present embodiment, the vertical direction and the horizontal direction are both described with reference to the ground as a reference, the direction parallel to the ground as a horizontal direction, and the direction perpendicular to the ground as a vertical direction, and in the present embodiment, the installation object is taken as a wall as an example.

The curtain body 1 includes a shaft tube 10, a curtain member 11 wound on the shaft tube 10, and a first pivot seat 12 and a second pivot seat 13 respectively located at two ends of the shaft tube 10, the first pivot seat 12 and the second pivot seat 13 respectively have a first pivot shaft 120 and a second pivot shaft 130, and the first pivot shaft 120 and the second pivot shaft 130 are inserted into the shaft tube 10 and are tightly fitted and linked with the shaft tube 10. The first pivot seat 12 and the second pivot seat 13 further have a first fastening block 121 and a second fastening block 131 respectively matched with the fastening groove 21, the first fastening block 121 and the second fastening block 131 can be respectively embedded into the fastening grooves 21 of the two fastening members 2, and the curtain body 1 is mounted on the wall by the gravity of the curtain body 1.

Therefore, referring to fig. 1 to 5, when the rolling-up curtain provided by this embodiment is installed, the two fixing pieces 2 are installed on the wall in a positioning manner, and then the first clamping block 121 and the second clamping block 131 on the two ends of the curtain body 1 are clamped into the clamping grooves 21 of the two fixing pieces 2, so that the installation of the rolling-up curtain can be completed.

As a preferred embodiment of this embodiment, the first pivot seat 12 and the second pivot seat 13 both have a side surface attached to the second surface 201 of the fixing element body 20, the first latch 121 and the second latch 131 are wing plates respectively disposed on two sides of the side surface in the horizontal direction, the slot 21 has an abdicating opening 210 disposed on the side surface and matching with the first pivot seat 12 and the second pivot seat 13, so that when the wing plates on the first pivot seat 12 and the second pivot seat 13 are embedded into the slot 21, the side surfaces of the first pivot seat 12 and the second pivot seat 13 are closely attached to the inner wall of the slot 21, and the wing plates are embedded into the slot 21 along the slot 21, so that the wing plates on the first pivot seat 12 and the second pivot seat 13 are embedded into the slot 21. More preferably, the wing plates and the locking slots 21 are arranged in a clearance fit manner, that is, the thickness of the wing plates is equal to the width of the locking slots 21, so that the wing plates on the first pivoting seat 12 and the second pivoting seat 13 can be smoothly inserted into the locking slots 21, and no obvious shaking feeling is generated after the wing plates are inserted.

As a preferred embodiment of this embodiment, the locking hole 22 on the fixing member body 20 is a strip-shaped through hole extending along the horizontal direction, so that after the fixing member body 20 is locked on the wall, the distance between the two fixing members 2 can be adjusted to a certain extent, so as to correct the distance between the two fixing members 2, and thus the curtain body 1 is embedded on the fixing members 2 and fixed.

As a preferred embodiment of this embodiment, the outer wall surfaces of the first pivot shaft 120 and the second pivot shaft 130 respectively have a plurality of first ribs 122 and a plurality of second ribs 132 protruding from the pivot shaft, and the first ribs 122 and the second ribs 132 are both disposed in an interference fit with the inner wall surface of the shaft tube 10, so that the first pivot seat 12 and the second pivot seat 13 can be directly fixed on two ends of the shaft tube 10, so as to assemble the first pivot seat 12 and the second pivot seat 13 on two ends of the shaft tube 10.

Example 2

The present embodiment also provides a rolling curtain, which has substantially the same structure as the rolling curtain in embodiment 1, and the difference is that the first pivot seat 12 is an automatic rolling device, and the second pivot seat 13 is a driven rolling device.

As shown in fig. 6-8, the first pivot base 12 includes a base, a positioning component and a rotating shaft.

The base body is a box body 123 and a spiral spring 124 positioned and installed in the box body 123, and an outer end 1240 of the spiral spring 124 is fixedly connected with the box body 123. In this embodiment, the box body 123 is composed of a bottom box 1230 and a box cover 1231, the box cover 1231 is fastened to the bottom box 1230 by screws to form a closed cavity, the bottom box 1230 has an annular peripheral wall 1232, the spiral spring 124 is located in a space surrounded by the peripheral wall 1232, and the peripheral wall 1232 is provided with a fixing groove 1233 for fixing an outer end 1240 of the spiral spring 124.

The positioning assembly includes a rotating base 125, a track base 126 and a ball 127, the rotating base 125 is the first pivot shaft 120 in embodiment 1, the rotating base 125 is hollow tube, and an axial groove 1250 is formed on the inner wall surface of the rotating base 125 in a concave manner. Here and in the following, axial, radial and axial are described with reference to the axis of rotation.

The track seat 126 is disposed in the rotating seat 125, and the outer wall surface of the track seat 126 is concavely provided with a first track 1260 and a second track 1261 which are communicated with each other, a plurality of guide blocks 1262 are disposed between the two tracks, the ball 127 is movably disposed between the axial groove 1250 of the rotating seat 125 and the track seat 126, when the rotating seat 125 rotates, the ball 127 is controlled to move along the axial groove 1250 by the axial groove 1250, and is switched to move in the first track 1260 and the second track 1261 by cooperating with the guide blocks 1262, and how to switch is described in detail below.

Referring to fig. 6-8, one end of the rotating shaft 128 movably penetrates the center of the spiral spring 124 in the box body and is fixedly connected to an inner end 1241 at the center of the spiral spring 124, and the other end movably penetrates the track seat 126 and is drivingly connected to the rotating seat 125. In this embodiment, specifically, one end of the rotating shaft 128, which is fixedly connected to the spiral spring 124, is provided with a slit 1280 for fixedly connecting an inner end 1241 of the spiral spring 124, the other end of the rotating shaft 128, which is in driving connection with the rotating base 125, is a non-circularly arranged polygonal prism, the rotating base 125 is provided with a polygonal through hole 1251, which is matched with the rotating base 125, and the polygonal prism on the other end of the rotating shaft 128 is inserted into the polygonal through hole 1251, so that the rotating base 125 and the rotating shaft 128 rotate synchronously.

Referring to fig. 6-14, defined herein: when the curtain is drawn out, the rotating seat 125 rotates clockwise, the ball 127 moves clockwise along with the rotating seat 125, when the curtain is furled, the rotating seat 125 rotates counterclockwise, and the ball 127 moves counterclockwise along with the rotating seat 125. In the present embodiment, both clockwise and counterclockwise directions are seen from the outer end to the inner end of the rail seat 126, and the right side of fig. 4-7 is the outer end of the rail seat 126, and the left side is the inner end.

The outer wall surface of the track seat 126 has an arcuate track 1263 recessed in the radial direction of the track seat 126 and switching regions communicating with both ends of the arcuate track 1263. The circular arc segment track 1263 serves as a common track for the first track 1260 and the second track 1261.

The switching region has a guide block 1262 therein that divides the switching region into a third track 1264 and a fourth track 1265, the third track 1264 and the circle segment track 1263 forming a first track 1260, and the fourth track 1265 and the circle segment track 1263 forming a second track 1261.

When the ball 127 moves clockwise, one end of the arcuate track 1263 entering from the switching region is defined as a first end 1263a of the arcuate track 1263, and the other end of the ball 127 entering from the arcuate track 1263 into the switching region is defined as a second end 1263 b.

The guide block 1262 is disposed at the middle of the switching region, and divides the switching region into a third track 1264 located at the left side of the switching region and a fourth track 1265 located at the right side of the switching region, wherein the third track 1264 is a track having a continuous inflection point, and the fourth track is a track having no continuous inflection point. The guide block 1262 has a first guide surface 1262a facing the second end 1263b of the segment rail 1263 and a second guide surface 1262b located on the first end 1263a side of the segment rail 1263, the first guide surface 1262a and the second guide surface 1262b form a third rail with the left side wall of the switching region, and the second guide surface 1262b has a recess 1262d recessed toward the second end 1263b of the segment rail 1263. The guide block 1262 further has a third guide surface 1262c forming a fourth track with the right sidewall of the switching region.

A flange 1263c protruding to the right is further provided at a communication part between the switching region and the first end 1263a of the circular arc segment track 1263, and the flange 1263c has a fourth guide surface 1263d for guiding the ball 127 to the fourth track 1265 when the ball 127 moves counterclockwise.

When the ball 127 moves clockwise along the first track 1260, the ball 127 is guided by the left sidewall of the switching region and the first and second guide surfaces 1262a and 1262b of the guide block 1262 to move along the third track 1264, and enters the arc track 1263 from the first end 1263a of the arc track 1263 and enters the third track 1264 from the second end 1263b of the arc track 1263, so that the ball 127 continuously travels on the first track 1260.

As the ball 127 moves along the first track 1260 to the recess 1262d of the guide block 1262, the ball 127 moves into the recess 1262d, at which point the ball 127 cannot move counterclockwise.

When the ball 127 moves along the second track 1261 counterclockwise, the ball 127 is moved from the first end 1263a of the circular-arc track 1263 to the fourth track 1265 by the fourth guiding surface 1263d of the flange 1263c, and is moved from the fourth track 1265 to the second end 1263b of the circular-arc track 1263 by the third guiding surface 1262c of the guiding block 1262, so that the ball 127 continuously travels on the second track 1261.

In the above description, only one switching region is provided on the track seat 126, and a single switching region can only realize that the ball 127 has one limit when the track seat 126 moves for one turn, but in practical applications, a plurality of switching regions can be provided, and the ball 127 can have a plurality of limits when the track seat 126 moves for one turn through a plurality of switches, so as to realize the effect of follow-up stop.

When the curtain rolling device provided by the invention is used, the rolling rod of the curtain is directly sleeved and fixed on the rotating seat of the curtain rolling device, when the curtain is put down, the lower end of the curtain is held to be pulled downwards, and when the ball 127 moves to the notch 1262d of the guide block 1262, the curtain stops at the current height as soon as the force application is stopped. When the curtain cloth is required to be rolled, the curtain cloth can be automatically rolled upwards to be positioned only by slightly pulling down the curtain cloth and then releasing the curtain cloth.

Referring to fig. 6-14, the above-mentioned operation is controlled in such a way that when the curtain is pulled downwards, the curtain drives the winding rod to rotate clockwise through the connecting rope, the winding rod drives the rotating seat 125, which is sleeved and fixed, to rotate, the rotating seat 125 drives the spiral spring 124 to rotate through the rotating shaft 128, and therefore the spiral spring 124 begins to roll along with the rotating shaft 128 to accumulate energy. During the curtain cloth pulling process, once the force applied to the curtain cloth is stopped, the components of the positioning component 2 will immediately interact (regarding the component action of the positioning component 2, the following detailed description) so that the rotating base 125 and the rail base 126 cannot rotate relatively, and the curtain cloth can be stopped at the current height. When the curtain cloth is slightly pulled down and then released, the components of the positioning component 2 interact again (regarding the component action of the positioning component 2, which will be described in detail later), so that the rotating base 125 and the track base 126 can rotate relatively, at this time, the spiral spring 124 starts to release the energy accumulated before and starts to rotate reversely, and the curtain cloth is wound upwards until the spiral spring 124 returns to the initial state, and the curtain cloth also returns to the uppermost end at the initial state.

The actions of the various components of the positioning assembly in the above-described process are detailed below. First, the balls 127 are disposed between the axial grooves 1250 of the rotating base 125 and the tracks of the track base 126, and whether the rotating base 125 and the track base 126 can rotate relatively is determined by the positions of the balls 127 in the grooves and the relationship between the balls and the guide blocks.

For the definition, the upper and lower directions in fig. 12-14 represent the counterclockwise direction and the clockwise direction of the rail seat 126, respectively.

Referring to FIG. 12, as the curtain is pulled down, the roll-up spindle drives the swivel mount 125 to rotate clockwise relative to the track mount 126, and the ball 127 follows the swivel mount 125 along the first track 1260. As shown in fig. 12, the initial position of the ball 127 is on the circular arc track 1263, the ball 127 first moves upward along the circular arc track 1263, the right end of the guide block 1262 protrudes to the right side opposite to the circular arc track 1263, and the first guide surface 1262a is biased upward to the left, when the ball 127 enters the switching region from the second end 1263b of the circular arc track 1263, the ball enters the third track 1264 by being guided by the first guide surface 1262a of the guide block 1262, and then enters the circular arc track 1263 from the first end 1263a of the circular arc track 1263 along the third track 1264, and the cycle is repeated, so that the rotary base 125 is continuously rotated clockwise relative to the track base 126. The direction of movement of the balls 127 is shown by the arrow in figure 8.

As shown in fig. 13, when the ball 127 moves along the third track 1264 to the recess 1262d of the guide block 1262, the ball 127 moves into the recess 1262d, if the curtain is released, the scroll spring 124 applies a counterclockwise force to the rotary seat 125, but the ball 127 is trapped in the recess 1262d and cannot move downward, the ball 127 catches the axial groove 1250, and the rotary seat 125 cannot rotate counterclockwise relative to the track seat 126, so that the curtain can be stopped at the current height.

As shown in fig. 14, to automatically wind the fabric upward, only a slight pull down of the fabric is required, and the balls 127 then move slightly upward out of the recesses 1262d and enter the segment rails 1263 from the first ends 1263a of the segment rails 1263. Then the curtain is released, at this time, the scroll spring 124 applies a counterclockwise force to the rolling seat 125 to move the ball 127 downward, and when the curtain moves downward, the ball enters the fourth track 1265 by the guiding action of the fourth guiding surface 1263d of the flange 1263c, and enters the second end 1263b of the arc segment track 1263 from the fourth track 1265 by the action of the third guiding surface 1262c of the guiding block 1262, so that the ball 127 continuously travels on the second track 1261, and the rolling seat 125 is continuously rotated counterclockwise relative to the track seat 126 until the scroll spring 124 returns to the initial state, and the curtain also returns to the uppermost end at the initial state.

Compared with the curtain transmission device in the prior art, the curtain winding device provided by the invention removes the main spring, adopts the spiral spring as the force application element for restoring force, provides accumulated energy for the spiral spring when the rotating seat rotates through the rotating shaft, has a small and exquisite structure, can directly sleeve and fix the shaft tube of the curtain on the rotating seat, and is simple and convenient to install.

As a preferable scheme of this embodiment, referring to fig. 6 and 7, the rail seat 126 is a hollow tubular structure, a torsion spring 30 is sleeved in the rail seat 126, one end of the torsion spring 30 is fixed to the rail seat 126, and the other end is fixed to the box cover 1231. The torsion spring 30 provides a torsion force to the rail seat 126 to prevent the rail seat 126 from rotating with the rotating seat 125. In order to prevent the rail seat 126 from rotating with the rotating seat 125, the rail seat 126 can be directly fixed to the box body, but the torsion spring 30 not only prevents the same from rotating with the rotating seat 125, but also when the curtain is automatically rolled up, the torsion spring 30 can provide a buffer effect for the counterclockwise rotation of the rotating seat 125, so as to play a role of the oil damper in the conventional curtain transmission device, and prevent the injury to the operator due to the excessively fast automatic rolling-up speed of the curtain.

Preferably, the box cover 1231 has a sleeve portion 1231a extending into the rail seat, and the torsion spring 30 is sleeved on the outer wall surface of the sleeve portion 1231a, so as to facilitate the assembly of the torsion spring 30.

Preferably, the second pivot base 13 is a driven roll-up device, and a damper (not shown) is installed inside the pivot shaft 130 of the second pivot base 13 to prevent the curtain from rolling up too fast to hurt the operator, the damper is a damper used in the prior art, and is available directly from the market, such as DS12H damper sold by shenzhen.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. A roll-up curtain is characterized in that: comprises a curtain body and two fixing pieces, wherein,

the fixing piece comprises a plate-shaped fixing piece body, the fixing piece body is provided with a first surface attached to an installation object and a second surface opposite to the first surface, the second surface is provided with a clamping groove which is formed in the vertical direction, the upper end of the clamping groove is an open end, the lower end of the clamping groove is a closed end, and the fixing piece body is further provided with at least two locking holes;

the curtain body includes an central siphon, the (window) curtain spare of establishing on this central siphon and two pin joint seats, and two pin joint seats are located the central siphon both ends respectively, a pin joint axle has on the pin joint seat, and this pin joint axle wears to locate in the central siphon and set up and the interlock with the central siphon tight fit, and still all have on the pin joint seat with the fixture block of draw-in groove phase-match setting, the fixture block can inlay and establish to the draw-in groove of mounting to borrow the gravity of curtain body and make this curtain body install on the installation object.

2. The roll-up window covering according to claim 1, wherein: the pin joint seat is provided with a side face attached to the second face of the fixing piece body, the clamping blocks are wing plates located on two sides of the side face in the horizontal direction, and the clamping grooves are provided with abdicating openings matched with the pin joint seat.

3. The roll-up window covering according to claim 2, wherein: the wing plates and the clamping grooves are arranged in a clearance fit mode.

4. The roll-up window covering according to claim 1, wherein: the locking hole on the fixing piece body is a strip-shaped through hole which extends in the horizontal direction.

5. The roll-up window covering according to claim 1, wherein: the outer wall surface of the pivoting shaft is provided with a plurality of ribs which are convexly arranged on the pivoting shaft in the axial direction, and the ribs are arranged in interference fit with the inner hole wall of the shaft tube.

6. The roll-up window covering according to claim 1, wherein: one of the two pivoting seats is an automatic rolling device, which comprises:

the spring coiling box comprises a box body and a spiral spring positioned and installed in the box body, and the outer end part of the spiral spring is fixedly connected with the box body;

the positioning assembly comprises a rotating seat, a track seat and a ball, wherein the rotating seat is hollow and tubular, an axial groove is concavely formed in the inner wall surface of the rotating seat, the track seat is arranged in the rotating seat in a penetrating manner, two communicated first tracks and second tracks are concavely formed in the outer wall surface of the track seat, a plurality of guide blocks are arranged between the two tracks, the ball is movably arranged between the axial groove of the rotating seat and the track seat, and when the rotating seat rotates, the ball is controlled to move along the axial groove through the axial groove and is switched to move in the first tracks and the second tracks by matching with the guide blocks;

and one end of the rotating shaft is movably arranged in the center of the spiral spring in the box body in a penetrating manner and is fixedly connected with the inner end part at the center of the spiral spring, and the other end of the rotating shaft is movably arranged in the track seat in a penetrating manner and is in driving connection with the rotating seat.

7. The roll-up window covering according to claim 6, characterized by defining: when the curtain is pulled out, the rotating seat rotates clockwise, and when the curtain is rolled up, the rotating seat rotates anticlockwise; the outer wall surface of the track seat is provided with an arc section track which is concavely arranged on the radial direction of the track seat and switching areas which are communicated with two ends of the arc section track, a guide block which divides the switching areas into a third track and a fourth track is arranged in each switching area, the third track is provided with a notch which is concavely arranged in the anticlockwise direction, the third track and the arc section track form a first track, and the fourth track and the arc section track form a second track; when the rotating seat rotates clockwise, the first track is provided with a guide surface for guiding the ball to the first track, and when the rotating seat rotates anticlockwise, the second track is provided with a guide surface for guiding the ball to the second track.

8. The roll-up window covering according to claim 6, wherein: the track seat is of a hollow tubular structure, a torsion spring is sleeved in the track seat, one end of the torsion spring is fixedly arranged on the track seat, and the other end of the torsion spring is fixedly arranged on the box body.

9. The roll-up window covering according to claim 8, wherein: the box body is provided with a shaft sleeve part extending into the track seat, and the torsion spring is sleeved on the outer wall surface of the shaft sleeve part.

10. The roll-up window covering according to claim 6, wherein: the other of the two pivoting seats is a driven furling device, and a damper is arranged in a pivoting shaft of the pivoting seat.

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