Installation-free roller shutter system

Abstract

The utility model provides an installation-free roller shutter system. The installation-free roller shutter system comprises a housing and a reel pipe which is rotatably arranged in the housing and is connected with one end of curtain cloth, a left mounting mechanism and a right mounting mechanism which are in contact with a left mounting surface and a right mounting surface of the roller shutter respectively are arranged at the left end and the right end of the housing respectively; the left mounting mechanism comprises a left stress bracket which is fixedly arranged at the left end of the housing; the right mounting mechanism comprises a right stress bracket which is fixedly arranged at the right end of the housing; the left stress support and the right stress support are made of materials which are not prone to deformation. The left end face and the right end face of the housing are both in an inverted U shape or a quadrangle with an opening in the lower end. And at least three edges of the left end surface and the right end surface of the housing are tightly pressed with the corresponding left stress bracket or the right stress bracket. Extrusion force is transmitted to the cover shell through the left stress support and the right stress support, and extrusion to a curtain system in the cover shell is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of curtain without installation, and particularly relates to a curtain rolling system without installation. Background Art

[0002] With the development and progress of society, curtain products are constantly updated. For the curtain rolling system without installation currently produced and sold in the market, the structure of the cover generally has only two surfaces, and it is very easy to deform after being stressed and cannot bear a large force. After the curtain without installation is installed, both ends are subjected to extrusion pressure, and the buckle covers at both ends of the cover will deform and tilt to the side without the support of the cover, resulting in squeezing the power mechanism of the rolling tube, generating resistance and affecting the retraction and extension of the product. Moreover, the existing curtain system can only be adapted to one type of curtain rolling system without installation, and the variety is single. Patent CN214943896U discloses a new type of curtain cover, and a bracket is added inside the cover. After the bracket is inserted into the cover, it is fastened with screws. Patent CN214943896U is not a curtain without installation, and both ends are not stressed, so parts that do not deform under stress are not required, and the bracket only plays a decorative role. Even if Patent CN214943896U is a curtain without installation, the material of the bracket is plastic material, and it is still easy to deform after being stressed. Moreover, the bracket is fixed at both ends of the double-groove tube inside the cover. If both ends are squeezed, the extrusion pressure at both ends will be directly transmitted to the double-groove tube, which is a winding mechanism, increasing the winding resistance, and the structure therein cannot be applied to the structure of the curtain without installation at all. There is a need for a curtain rolling system without installation in which the rolling tube rotates smoothly and is not affected by the extrusion pressure at both ends. Summary of the Invention

[0003] The utility model provides a curtain rolling system without installation.

[0004] The purpose of the utility model is achieved in the following way: A curtain rolling system without installation, including a cover, a rolling tube rotatably arranged inside the cover and connected to one end of the curtain cloth; a left installation mechanism and a right installation mechanism are respectively arranged at the left end and the right end of the cover for contacting the left and right installation surfaces of the rolling curtain respectively; the left installation mechanism includes a left stress-bearing bracket fixedly arranged at the left end of the cover; the right installation mechanism includes a right stress-bearing bracket fixedly arranged at the right end of the cover; the left stress-bearing bracket and the right stress-bearing bracket are made of materials that are not easily deformed.

[0005] The left end face and the right end face of the cover are both inverted U-shaped or quadrilateral with an opening at the lower end; at least three sides of the left end face and the right end face of the cover are pressed against the corresponding left stress-bearing bracket or right stress-bearing bracket.

[0006] On the inner sides of at least three edges of the left end face and the right end face of the housing, positioning grooves are provided, and the length direction of the positioning grooves is consistent with the length direction of the housing; positioning protrusions are respectively provided at positions corresponding to the positioning grooves on the left force-bearing bracket and the right force-bearing bracket; at least one side of the left force-bearing bracket, the right force-bearing bracket and the housing is fixed.

[0007] A driving mechanism is provided at the right end of the coiling tube; the driving mechanism includes a fixed part that does not rotate with the coiling tube, and a positioning hole is provided at the right end of the fixed part; a positioning member is provided at a corresponding position on the right force-bearing bracket; the positioning member is inserted into the positioning hole.

[0008] The driving mechanism is a spring rod, and the fixed part is the right inner rod at the middle position of the right end of the spring rod; or the driving mechanism is a tubular motor, and the fixed part is the fixed end of the tubular motor; or the driving mechanism is a bead pulling mechanism, and the fixed part is the right end fixing seat of the bead pulling mechanism.

[0009] A left buckle cover with an internal hole is provided at the left end of the left force-bearing bracket, and the left buckle cover is fixedly connected to the housing; a cylinder is provided at the right end of the left buckle cover, and a hole is provided in the middle of the left force-bearing bracket and sleeved on the cylinder of the left buckle cover; the left mounting mechanism further includes a fastening rod slidably provided at the right end inside the cylinder; an elastic reset member is provided between the fastening rod and the hollow cylinder of the left buckle cover; an adjusting disc that rotates and moves by screwing is provided at the position between the left end of the fastening rod and the left end of the left buckle cover; a tail-making sleeve that rotates outside the cylinder of the left buckle cover and has its right end inserted into the left end of the coiling tube and rotates with the coiling tube is provided, and the left end of the tail-making sleeve is annularly arranged between the left force-bearing bracket and the left end of the coiling tube.

[0010] A one-way resistance mechanism is provided at the left end inside the coiling tube, and the one-way resistance mechanism includes a core sleeved on the right end of the left buckle cover, and a small torsion spring is provided between the left buckle cover and the core; a large torsion spring is provided between the core and the tail-making sleeve, and the small torsion spring and the large torsion spring are one-way torsion springs and have opposite directions.

[0011] The left force-bearing bracket does not exceed the four sides of the left end face of the housing, and a left buckle cover is provided at the left end of the left force-bearing bracket, and the left buckle cover wraps the left force-bearing bracket from the left side and all around; the four end faces of the left buckle cover are butted against the four sides of the housing; a fixing surface is provided at the upper end of the left buckle cover, and a fixing edge is provided at the upper end of the left force-bearing bracket; the fixing surface, the fixing edge, and the upper side surface of the housing are fixed from top to bottom; a positioning structure is provided between the left force-bearing bracket and the left buckle cover.

[0012] The right stress bracket does not exceed the four sides of the right end face of the housing. A right buckle cover is provided at the right end of the right stress bracket, and the right buckle cover wraps the right stress bracket from the right side and all around; the four end faces of the right buckle cover are butted against the four sides of the housing; a fixing surface is provided at the upper end of the right buckle cover, and a fixing edge is provided at the upper end of the right stress bracket; the fixing surface, the fixing edge, and the upper side surface of the housing are fixed from top to bottom; a positioning structure is provided between the right stress bracket and the right buckle cover.

[0013] A bead groove for fixing one end of the curtain fabric is provided inside the housing; a mounting bracket fixing place is provided at the top of the housing.

[0014] Compared with the prior art, the utility model increases the grasping force of the curtain on the wall through large and small rubber rings to avoid falling. The extrusion force is transmitted to the housing through the left stress bracket and the right stress bracket, avoiding the extrusion of the curtain system inside the housing. The driving mechanism in the right installation mechanism of the utility model can be in various forms, and the size of the positioning part of the right stress bracket is set to be universal, which can adapt to various head structures and driving structures. The adapted curtain can be changed to a type that does not require installation, solving the problem that customers like a certain roller blind but do not want to install it by nailing. Description of the Drawings

[0015] Figure 1 It is a schematic diagram of the overall curtain. Figure 2 It is a schematic diagram of the left installation mechanism at the left end of the housing. Figure 3 It is a schematic diagram of the right installation mechanism. Figure 4 It is a schematic diagram of the shape of the housing. Figure 5 It is a schematic diagram of the connection between the left stress bracket and the frame after hiding the left buckle cover at the left end. Figure 6 It is a schematic diagram of the connection between the right stress bracket and the frame at the right end. Figure 7 It is a schematic diagram of the left stress bracket. Figure 8 It is a schematic diagram of the right stress bracket. Figure 9 It is a cross-sectional view of the curtain hiding the housing and the curtain fabric. Figure 10 It is Figure 9 The enlarged view of the left end. Figure 11 It is Figure 9 The exploded view of some parts in Figure 12 It is a horizontal cross-sectional view of the curtain hiding the curtain fabric. Figure 13 It is Figure 9 The enlarged view of the right end. Figure 14 It is Figure 13 The exploded view of some parts in Figure 15 It is a cross-sectional view of the left buckle cover. Figure 16 It is a schematic diagram of the right buckle cover. Figure 17 It is a schematic diagram of the tubular motor. Figure 18 It is a schematic diagram of the bead hanging mechanism. Figure 19 It is a schematic diagram of the connection between the rainbow curtain, the housing, and the winding tube.

[0016] Among them, 1 is a curtain fabric, 2 is a winding tube, 3 is a housing, 30 is a positioning groove, 4 is a left stress-bearing bracket, 40 is a positioning projection, 41 is a fixed edge, 5 is a right stress-bearing bracket, 50 is a positioning member, 7 is a spring rod, 70 is a right inner rod, 71 is a positioning hole, 72 is a socket head sleeve, 73 is an adjusting wheel, 74 is a torsion core, 8 is a left buckle cover, 80 is a fixing surface, 9 is a right buckle cover, 10 is a fastening rod, 11 is an adjusting disc, 12 is a tail socket, 13 is a rotating shaft, 14 is an inner core, 15 is a rubber ring, 16 is a small torsion spring, 17 is a large torsion spring, 18 is a strip with adhesive. Specific embodiments

[0017] In the present utility model, unless otherwise clearly specified and limited, the technical terms used in this application shall have the ordinary meanings understood by those skilled in the art of the present utility model. Terms such as "connected", "connected", "fixed", "set" and the like should be understood in a broad sense, which can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium; it can be a mechanical connection or an electrical connection. Unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or indirectly in contact through an intermediate medium. Moreover, the first feature being "above" or "over" or "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under" or "below" or "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature. Relative terms such as first, second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Terms used in the description such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0018] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings and specific embodiments. As Figure 1-19As shown in the figure, a non-installed rolling curtain system includes a housing 3 and a winding tube 2 rotatably arranged in the housing 3 and connected to one end of the curtain cloth 1; a left mounting mechanism and a right mounting mechanism are respectively arranged at the left end and the right end of the housing 3 for contacting the left and right mounting surfaces of the rolling curtain; the left mounting mechanism includes a left force-bearing bracket 4 fixedly arranged at the left end of the housing 3; the right mounting mechanism includes a right force-bearing bracket 5 fixedly arranged at the right end of the housing 3; the left force-bearing bracket 4 and the right force-bearing bracket 5 are made of materials that are not easily deformed. The materials that are not easily deformed can be common metal materials, such as single metals like iron and copper, or alloys, or wood, composite materials, etc.; as long as they are not easily deformed after being stressed. The left force-bearing bracket 4 and the right force-bearing bracket 5 are respectively arranged at the left and right ends of the housing 3; after the two ends of the curtain are stressed, the force is first transmitted to these two components. Even if only the top surface and the front surface of the housing 3 support the left force-bearing bracket 4 and the right force-bearing bracket 5, the left force-bearing bracket 4 and the right force-bearing bracket 5 will not deform and tilt towards the side without the support of the housing 3, that is, the rear side. The left force-bearing bracket 4 and the right force-bearing bracket 5 do not deform, and there will be no extrusion between them and the rolling curtain in the housing 3. The extrusion force is transmitted to the housing 3 through the left force-bearing bracket 4 and the right force-bearing bracket 5, and the friction force of the rolling curtain remains unchanged, so it can be smoothly pulled. In the present invention, "left" and "right" only represent the relative position relationship, and there is no fixed limit on the setting positions of the left force-bearing bracket 4 and the right force-bearing bracket 5, etc.

[0019] The left end face and the right end face of the housing 3 are both inverted U-shaped or quadrilateral with an opening at the lower end; at least three sides of the left end face and the right end face of the housing 3 are pressed against the corresponding left force-bearing bracket 4 or right force-bearing bracket 5. (When three sides of the U-shape of the housing 3 or any three sides of the quadrilateral are pressed against the corresponding left force-bearing bracket 4 or right force-bearing bracket 5, in this case, even when the extrusion force is very large, the left force-bearing bracket 4 and the right force-bearing bracket 5 will not deform, further ensuring the smooth rotation of the curtain winding tube 2 under large pressure. In the present invention, the left force-bearing bracket 4 and the right force-bearing bracket 5 will not deform and squeeze the winding tube 2, and the extrusion force at both ends of the curtain is applied to the housing 3 through the left force-bearing bracket 4 and the right force-bearing bracket 5. The housing 3 is a semi-enclosed structure and can withstand sufficient extrusion force without deformation, protecting the internal structure from the influence of the extrusion force.

[0020] On the left end face and the right end face of the housing 3, positioning grooves 30 are provided on the inner sides of at least three sides, and the length direction of the positioning grooves 30 is the same as the length direction of the housing 3; positioning protrusions 40 are respectively provided at positions corresponding to the positioning grooves 30 on the left force-bearing bracket 4 and the right force-bearing bracket 5; at least one side surface of the left force-bearing bracket 4, the right force-bearing bracket 5 and the housing 3 is fixed. (Specifically: the left force-bearing bracket 4 and the right force-bearing bracket 5 are respectively metal plates, such as iron plates. At least three positioning protrusions 40 are formed by bending the edges of the left force-bearing bracket 4 and the right force-bearing bracket 5. The upper ends of the left force-bearing bracket 4 and the right force-bearing bracket 5 are provided, for example, by bending to form a fixed edge 41. The fixing plate is fixedly connected to the upper side surface of the housing 3, for example, by screw connection. The left force-bearing bracket 4 and the right force-bearing bracket 5 can be bent in other directions and fixedly connected to the front side surface or the rear side surface of the housing 3. In addition to the threaded connection method, other fixing methods such as welding and tight fit are also within the protection scope of the present utility model. In the drawings, the left force-bearing bracket 4 and the right force-bearing bracket 5 respectively form four bends, and positioning grooves 30 are provided on four surfaces of the housing 3.)

[0021] A driving mechanism is provided at the right end of the coiling tube 2; the driving mechanism includes a fixed part that does not rotate with the coiling tube 2, and a positioning hole 71 is provided at the right end of the fixed part; a positioning member 50 is provided at a corresponding position on the right force-bearing bracket 5; the positioning member 50 is inserted into the positioning hole 71. The driving mechanism here can be various existing rolling curtain driving mechanisms, such as a spring rod 7, a tubular motor, a pull bead, etc. A positioning hole 71 is provided at the right end of the fixed part, and the right force-bearing bracket 5 and the driving mechanism are positioned through a positioning mechanism.

[0022] The driving mechanism is a spring rod 7, and the fixed part is the right inner rod 70 at the middle position of the right end of the spring rod 7; or the driving mechanism is a tubular motor, and the fixed part is the fixed end of the tubular motor; or the driving mechanism is a pull bead mechanism, and the fixed part is the right end fixing seat of the pull bead mechanism. The previous drawings show the structure of the curtain system with a spring rod 7 as the driving mechanism, and the spring rod 7 is self-equipped with an elastic force adjusting mechanism. The spring rod 7 includes a head sleeve 72 provided in the coiling tube 2 and rotating with the coiling tube 2; a right inner rod 70 fixed at the central position is provided inside the head sleeve 72, an adjusting wheel 73 is rotatably provided outside the right inner rod 70, a gear is provided at the right end of the adjusting wheel 73, and an annular surface sleeved on the right inner rod 70 is provided at the left end; an annular surface of a torsion core 74 is also sleeved on the right inner rod 70, and the torsion core 74 is fixedly connected to the spring on the inner rod of the spring rod 7. A torsion spring is provided on the right inner rod 70, and the two ends of the torsion spring are respectively inserted into the gaps between the two annular surfaces. Rotating the adjusting wheel 73 can adjust the elastic force of the spring rod 7. After adjustment, the torsion core 74 will not rotate in the reverse direction. This part is prior art and can refer to the relevant patents for elastic force adjustment applied previously. The present utility model will not describe it in detail. Figure 17It is a tubular motor with a positioning hole 71 provided at its right end. It is applied to a curtain with a tubular motor as a driving mechanism, and the driving end of the tubular motor can be provided inside the winding tube 2. Figure 18 It is a head with hanging beads, and a positioning hole 71 is provided at the fixed part of the right end. It is applicable to a curtain with a pull bead as a driving mechanism. The curtain with a spring rod 7, a tubular motor, and a pull bead mechanism as driving mechanisms is prior art and will not be described in detail.

[0023] An inner hole is provided at the left end of the left force-bearing bracket 4, and a left buckle cover 8 is provided. The left buckle cover 8 is fixedly connected to the housing 3; a cylinder is provided at the right end of the left buckle cover 8, and a hole is provided in the middle of the left force-bearing bracket 4 and sleeved on the cylinder of the left buckle cover 8; the left mounting mechanism further includes a fastening rod 10 slidably provided at the right end inside the cylinder; an elastic resetting member is provided between the fastening rod 10 and the hollow cylinder of the left buckle cover 8; a regulating disc 11 that rotates and moves by screwing on the fastening rod 10 is provided at the position between the left end of the fastening rod 10 and the left end of the left buckle cover 8; a tail-making sleeve 12 that rotates outside the cylinder of the left buckle cover 8 and has its right end inserted into the left end of the winding tube 2 and rotates with the winding tube 2 is provided. The left end of the tail-making sleeve 12 is annularly arranged between the left force-bearing bracket 4 and the left end of the winding tube 2. The left end of the fastening rod 10 is provided with gear teeth, and the right end is a shaft. A section of the shaft close to the gear teeth is provided with threads, and a section close to the right end can be a smooth shaft, and the cross-sectional shape of the smooth shaft can be non-circular to ensure that the fastening rod 10 only moves and cannot rotate inside the left buckle cover 8. A through hole can be provided inside the fastening rod 10, and a rotating shaft 13 with its right end extending out of the fastening rod 10 is fixedly provided inside the through hole. The rotating shaft 13 is also arranged in the hole of the left buckle cover 8. Since the size of the regulating disc 11 is larger than the inner hole size of the left buckle cover 8, the regulating disc 11 cannot move into the left buckle cover 8. Therefore, the regulating disc 11 can determine the minimum width of the entire curtain installation part. During installation, the fastening rod 10 moves to the left to install the curtain between two walls or window frames. Then, the regulating disc 11 is rotated to the right to press the curtain against the wall. A resistance adjusting mechanism can or cannot be provided inside the tail-making sleeve 12. The driving mechanism can also include a head-making sleeve 72 provided at the right end of the winding tube 2 and rotating with the winding tube 2; the winding tube 2 is arranged between the left annular end of the tail-making sleeve 12 and the right annular end of the head-making sleeve 72. In addition, rubber rings 15 for increasing friction are respectively provided on the left end face of the fastening rod 10 and the right end face of the right buckle cover 9, and the rubber rings 15 can be two or more circles.

[0024] A one-way resistance mechanism is provided at the left end inside the coiling tube 2. The one-way resistance mechanism includes a core 14 sleeved on the right end of the left buckle cover 8, and a small torsion spring 16 is provided between the left buckle cover 8 and the core 14; a large torsion spring 17 is provided between the core 14 and the tail-making sleeve 12. The small torsion spring 16 and the large torsion spring 17 are one-way torsion springs and have opposite directions. The one-way resistance mechanism adjusts the resistance and is often applied to non-draw curtains. The one-way resistance mechanism is a prior art and has been patented, and its specific structure will not be described in detail. The left stress bracket 4 is fixed on the housing 3, and the tail-making sleeve 12 is connected to the grooved aluminum round tube, that is, the coiling tube 2; when the curtain is pulled down, the coiling tube 2 drives the tail-making sleeve 12 to rotate clockwise, the large torsion spring 17 contracts and drives the core 14, the core 14 drives the small torsion spring 16, and the small torsion spring 16 rotates clockwise to generate resistance; when the curtain is retracted, the coiling tube 2 drives the tail-making sleeve 12 to rotate counterclockwise, the large torsion spring 17 relaxes and rotates, the small torsion spring 16 contracts and fixes the core 14, the core 14 does not rotate, and the counterclockwise torsion of the large torsion spring 17 is negligible. The one-way resistance structure provided at the tail-making on the left side of the present utility model enables the installation-free rolling curtain system to be adapted to non-draw, draw-bead and electric series.

[0025] The left stress bracket 4 does not exceed the four sides of the left end face of the housing 3. A left buckle cover 8 is provided at the left end of the left stress bracket 4, and the left buckle cover 8 wraps the left stress bracket 4 from the left side and all around; the four end faces of the left buckle cover 8 are butted against the four sides of the housing 3; a fixing surface 80 is provided at the upper end of the left buckle cover 8, and a fixing edge 41 is provided at the upper end of the left stress bracket 4; the fixing surface 80, the fixing edge 41 and the upper side surface of the housing 3 are fixed from top to bottom; a positioning structure is provided between the left stress bracket 4 and the left buckle cover 8. Preferably, the fixing surface 80, the fixing edge 41 and the upper side surface of the housing 3 are connected by screws from top to bottom, which is convenient for assembly and disassembly. The positioning structure here can be the positioning between a buckle and a hole groove. For example, a buckle is provided on the left stress bracket 4, and a hole is provided at the corresponding position on the left buckle cover 8, or vice versa.

[0026] The right stress bracket 5 does not exceed the four sides of the right end face of the housing 3. A right buckle cover 9 is provided at the right end of the right stress bracket 5, and the right buckle cover 9 wraps the right stress bracket 5 from the right side and all around; the four end faces of the right buckle cover 9 are butted against the four sides of the housing 3; a fixing surface 80 is provided at the upper end of the right buckle cover 9, and a fixing edge 41 is provided at the upper end of the right stress bracket 5; the fixing surface 80, the fixing edge 41 and the upper side surface of the housing 3 are fixed from top to bottom; a positioning structure is provided between the right stress bracket 5 and the right buckle cover 9. The positioning structure here is the same as the positioning mechanism between the left stress bracket 4 and the housing 3. Preferably, the fixing surface 80, the fixing edge 41 and the upper side surface of the housing 3 are connected by screws from top to bottom, which is convenient for assembly and disassembly.

[0027] A bead groove for fixing one end of the curtain fabric 1 is provided inside the cover 3; a fixing place for the mounting bracket is provided at the top of the cover 3. The bead groove enables the installation-free curtain to be applied in combination with roller blinds and rainbow curtains. There is a fixing place for the mounting bracket at the top of the cover 3, and in special cases, the mounting bracket can also be used to fix the curtain, increasing the selectivity. The groove at the rear side of the cover 3 can insert a bead. When fixing the rainbow fabric, the adhesive bead 18 is pasted on the same side of the fabric. One end of the fabric with the bead pasted is inserted into the groove of the winding tube 2, and the other side is inserted into the groove at the rear side of the cover 3 or the positioning groove 30 in the cover 3. The positioning groove 30 runs through the entire length direction of the cover 3, as Figure 19 shown. When fixing the roller blind fabric 1, one end of the fabric with the bead pasted is inserted into the groove of the winding tube 2, and the other side is inserted into the groove of the lower beam.

[0028] When assembling the left installation mechanism: Install the large and small rubber rings 15 into the annular card slot of the fastening rod 10. Insert the rotating shaft 13 into the central round hole of the fastening rod 10. The square platform of the rotating shaft 13 is embedded into the square slot of the fastening rod 10. Screw the adjusting disc 11 to the threaded part of the fastening rod 10. One end of the spring is installed into the fastening rod 10, and the other end is inserted into the left buckle cover 8. Align the central round hole of the left force-bearing bracket 4 with the cylinder of the left buckle cover 8 and install it into the left buckle cover 8. The two buckles above and below the left buckle cover 8 are snapped into the left force-bearing bracket 4.

[0029] When assembling the right installation mechanism: First, install the large and small rubber rings 15 into the annular groove on the end face of the right buckle cover 9. Install the right force-bearing bracket 5 into the right buckle cover 9. The two buckles of the right buckle cover 9 are snapped into the right force-bearing bracket 5. The right force-bearing bracket 5 is provided with a bent boss, which can be used to fix the spring rod 7, the pull bead head and the motor. There are two threaded holes at its upper end for using screws to fix the right buckle cover 9 and the right force-bearing bracket 5 to the cover 3.

[0030] During overall installation, press the fastening rod 10 into the left buckle cover 8. Place the curtain in the appropriate position. After loosening the fastening rod 10, it pops out under the action of the spring. Turn the adjusting disc 11 to tighten the fastening rod 10 in the direction of the left buckle cover 8. The extrusion force generated at the left end is transmitted to the left buckle cover 8 through the adjusting disc 11, and finally applied to the cover 3 through the left force-bearing bracket 4. The extrusion force at the right end is transmitted to the right force-bearing bracket 5 and then to the cover 3, preventing the internal components from being deformed by force and causing smooth retraction. Appropriate weights (iron rods or others) can be added inside the lower beam so that the lower beam does not rebound when the curtain is in the open state. The left one-way resistance device cooperates with the torsion generated by the spring or other heads connected to the right side. When the curtain is in the tightened state, the lower beam will not slide down due to the added weight; there is no resistance mechanism when the curtain is retracted, and it can be tightened more quickly.

[0031] The utility model increases the grip of the curtain on the wall through the large and small rubber rings 15 to avoid falling. The extrusion force is transmitted to the housing 3 through the left force-bearing bracket 4 and the right force-bearing bracket 5, avoiding the extrusion of the curtain system inside the housing 3. The driving mechanism in the right installation mechanism of the utility model can be in various forms, and the size of the positioning part 50 of the right force-bearing bracket 5 is set to be universal, which can adapt to various types of screw head structures and driving structures. The adapted curtain can be changed to a type that does not require installation, solving the problem that customers like a certain roller blind but do not want to install it by nailing.

[0032] The technical features of the above-described embodiments can be combined arbitrarily. As long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. Without departing from the overall concept of the utility model, according to the technical solution of the utility model and making equivalent replacements or changes, as well as making several changes and improvements, it should also be regarded as the protection scope of the utility model.

Claims

1. A roll-up curtain system that does not require installation, comprising a housing, and a winding tube rotatably arranged in the housing and connected to one end of the curtain fabric; a left mounting mechanism and a right mounting mechanism are respectively arranged at the left end and the right end of the housing and are respectively used for contacting the left and right mounting surfaces of the roll-up curtain; characterized in that: The left mounting mechanism includes a left stress-bearing bracket fixedly arranged at the left end of the housing; the right mounting mechanism includes a right stress-bearing bracket fixedly arranged at the right end of the housing; the left stress-bearing bracket and the right stress-bearing bracket are made of materials that are not easily deformed.

2. The kind of installation-free roller blind system according to claim 1, characterized in that: The left end face and the right end face of the housing are both in an inverted U shape or a quadrilateral with an opening at the lower end; at least three sides of the left end face and the right end face of the housing are pressed against the corresponding left stress-bearing bracket or right stress-bearing bracket.

3. The kind of installation-free roller blind system according to claim 2, characterized in that: Positioning grooves are arranged on the inner sides of at least three sides of the left end face and the right end face of the housing, and the length direction of the positioning grooves is the same as the length direction of the housing; positioning protrusions are respectively arranged at the positions corresponding to the positioning grooves on the left stress-bearing bracket and the right stress-bearing bracket; the left stress-bearing bracket and the right stress-bearing bracket are fixed to at least one side face of the housing.

4. The kind of installation-free roller blind system according to claim 1, characterized in that: A driving mechanism is arranged at the right end of the coiling tube; the driving mechanism includes a fixed part that does not rotate with the coiling tube, and a positioning hole is arranged at the right end of the fixed part; a positioning part is arranged at the corresponding position on the right stress-bearing bracket; the positioning part is inserted into the positioning hole.

5. The one-touch installation rolling curtain system according to claim 4, characterized in that: The driving mechanism is a spring rod, and the fixed part is the right inner rod at the middle position of the right end of the spring rod; or the driving mechanism is a tubular motor, and the fixed part is the fixed end of the tubular motor; or the driving mechanism is a pull bead mechanism, and the fixed part is the right end fixing seat of the pull bead mechanism.

6. The one-piece installation-free roller blind system according to claim 1, characterized in that: A left buckle cover with an internal hole is arranged at the left end of the left stress-bearing bracket, and the left buckle cover is fixedly connected with the housing; a cylinder is arranged at the right end of the left buckle cover, and a hole is arranged in the middle of the left stress-bearing bracket and sleeved on the cylinder of the left buckle cover; the left mounting mechanism further includes a fastening rod slidably arranged at the right end in the cylinder; an elastic resetting part is arranged between the fastening rod and the hollow cylinder of the left buckle cover; an adjusting disk that rotates and moves by screwing on the fastening rod is arranged at the position between the left end of the fastening rod and the left end of the left buckle cover; a tail-making sleeve that rotates outside the cylinder of the left buckle cover and has its right end inserted into the left end of the coiling tube and rotates with the coiling tube is arranged, and the left end of the tail-making sleeve is annularly arranged between the left stress-bearing bracket and the left end of the coiling tube.

7. The one kind of installation-free roller blind system according to claim 6, wherein: A one-way resistance mechanism is arranged at the left end inside the coiling tube, and the one-way resistance mechanism includes an inner core sleeved on the right end of the left buckle cover, and a small torsion spring is arranged between the left buckle cover and the inner core; a large torsion spring is arranged between the inner core and the tail-making sleeve, and the small torsion spring and the large torsion spring are one-way torsion springs and have opposite directions.

8. The one kind of installation-free rolling curtain system according to any one of claims 2-7, characterized in that: The left stress-bearing bracket does not exceed the four sides of the left end face of the housing, and a left buckle cover is arranged at the left end of the left stress-bearing bracket, and the left buckle cover wraps the left stress-bearing bracket from the left side and all around; the four end faces of the left buckle cover are butted against the four sides of the housing; a fixing surface is arranged at the upper end of the left buckle cover, and a fixing edge is arranged at the upper end of the left stress-bearing bracket; the fixing surface, the fixing edge, and the upper side face of the housing are fixed from top to bottom; a positioning structure is arranged between the left stress-bearing bracket and the left buckle cover.

9. The non-installation roller shutter system according to claim 8, characterized in that: The right force-bearing bracket does not exceed the four sides of the right end face of the housing. A right buckle cover is arranged at the right end of the right force-bearing bracket, and the right buckle cover wraps the right force-bearing bracket from the right side and all around. The four end faces of the right buckle cover are butted against the four sides of the housing. A fixing surface is arranged at the upper end of the right buckle cover, and a fixing edge is arranged at the upper end of the right force-bearing bracket. The fixing surface, the fixing edge, and the upper side surface of the housing are fixed from top to bottom. A positioning structure is arranged between the right force-bearing bracket and the right buckle cover.

10. The one kind of installation-free roller shutter system according to any one of claims 1-7, characterized in that: A bead groove for fixing one end of the curtain fabric is arranged inside the housing. A mounting frame fixing position is arranged at the top of the housing.

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