CN218471119U - Upward-rolling type winding drum screen - Google Patents
Upward-rolling type winding drum screen Download PDFInfo
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- CN218471119U CN218471119U CN202222765370.7U CN202222765370U CN218471119U CN 218471119 U CN218471119 U CN 218471119U CN 202222765370 U CN202222765370 U CN 202222765370U CN 218471119 U CN218471119 U CN 218471119U
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Abstract
The utility model relates to a reel screen technical field specifically is an upward roll formula reel screen, including the screen reel, set up the screen in the screen reel, still include: the end frames are arranged at two ends of the screen winding drum and used for fixing the position of the screen winding drum; the screen tightening device is fixed on the left side, the right side and the lower side of the screen, one end of the screen tightening device and one end of the screen tightening device are both fixed on the screen winding drum and can be wound on the screen winding drum or unfolded from the screen winding drum along with the rotation of the screen winding drum. The up-rolling type reel screen of the utility model can meet the requirement that the screen does not occupy the ground or wall space, but needs to realize the projection of video playing occasions; when the projection function is needed to be realized, the unreeling function of the screen reel is opened, the screen reel rotates, the screen wound on the screen reel is evenly and flatly unfolded at a constant speed until the screen is unfolded to the projection position, and other arrangement functions are realized in the projection occasion.
Description
Technical Field
The utility model relates to a reel screen technical field specifically is an upward roll formula reel screen.
Background
Common film projection generally needs to arrange a floor fixed screen frame or a wall-mounted stretched screen frame to stretch and hang a screen projection picture, and some places such as auditoriums, meeting halls, multifunctional halls and the like need to meet the space requirements of background arrangement and multifunctional activities of meeting places under the condition of picture projection, so that the common film projection is not suitable for arranging the screen frame or the stretched screen frame occupying the ground or wall space.
For satisfying above should not occupy ground or wall space, but need realize the demand of projection function occasion, need design a roll-up formula reel screen, this type screen can adopt the mode installation that hangs or the stand supports, and the screen can be levelly and smoothly receive and release according to the user demand, does not occupy the stage and the background space in meeting place, auditorium.
The ultra-large type winding drum screen suitable for the special field comprises a screen winding drum, wherein a screen is arranged on the surface of the screen winding drum, two ends of the screen winding drum are connected to a bearing body of the special field through fixing frames, the screen winding drum is made of high-quality galvanized steel plates, the maximum deflection of the load of the screen winding drum is less than or equal to 1/450, shaft heads at two ends of the screen winding drum are connected to section shaft bearings inside section shafts of the screen winding drum, one end of each section shaft bearing is connected with a power transmission device for controlling the lifting of the screen, lateral tensioning devices which enable the screen winding to keep flat and not deviate and keep the screen flat and unfolded when the screen winding is lifted are arranged at two sides of the screen, each lateral tensioning device comprises a heavy hammer, a spring and a steel wire rope, one end of each steel wire rope is fixed on the surface of the screen winding drum and far away from the side edge of the screen, the other end of each steel wire rope is hung with a heavy hammer, and springs which extend in multiple horizontal directions are arranged between the steel wire ropes and the screen. The screen can be put down when showing, and can be rolled up when not showing. The novel solar water heater has a good market popularization prospect, but occupies a large area, and influences the use effect at a small place.
Disclosure of Invention
In order to solve the above problem, the utility model provides an upward roll formula reel screen.
The utility model provides a roll-up formula reel screen, includes the screen reel, sets up the screen in the screen reel, still includes:
the end frames are arranged at two ends of the screen winding drum and used for fixing the position of the screen winding drum;
the screen tightening device is fixed on the left side, the right side and the lower side of the screen, one end of the screen and one end of the screen tightening device are both fixed on the screen winding drum and can wind on the screen winding drum or unfold from the screen winding drum along with the rotation of the screen winding drum.
As a further improvement, the end frame constitute the cube by the pipe fitting, the end frame on install the motor, be connected with the motor output and be used for driving screen reel pivoted drive disk assembly, be used for with screen reel complex aligning bearing frame.
As a further improvement of the utility model, the motor pass through in the fastener is fixed in the end frame, the mounted position of accessible adjustment fastener to change the fixed position of motor in the end frame.
As a further improvement, the transmission component is chain transmission or gear transmission, the both ends of the screen winding drum are provided with winding drum ends, and the transmission component is arranged between the output end of the motor and the winding drum ends.
As a further improvement of the utility model, the screen winding drum comprises a drum body, the ends of the winding drum are fixed at two ends of the drum body, and the ends of the winding drum are coaxial with the geometric axis of the drum body; one end of the winding drum extends out of the end face of the drum body and can be matched with the aligning bearing seat, and the other end of the winding drum extends into the drum body and is fixed with the drum body.
As a further improvement of the utility model, the aligning bearing frame be fixed in the end frame through the fastener in, the mounted position of accessible adjustment fastener is with the fixed position of adjustment aligning bearing frame.
As a further improvement of the utility model, the cylinder body is a cylindrical thin-wall structure, and two end surfaces of the cylinder are closed and coaxially fixed with the end of the winding drum; the screen can be provided with black edges and sound-transmitting holes, the black edges are black and are arranged around the screen, and the screen surface and the black edges can be simultaneously provided with the sound-transmitting holes which are regularly distributed.
As a further improvement of the present invention, the screen tensioning device comprises side-pulling steel wire ropes symmetrically distributed on both sides of the screen, a heavy hammer fixed at the lower end of the side-pulling steel wire rope, a side-pulling spring connected between the side-pulling steel wire rope and the side edge or the black edge of the screen, and a screen lower edge tube parallel to and fixed at the lower side edge of the screen; the lower side pipe of the screen is a straight pipe, and the length of the lower side pipe is larger than or equal to the width of the screen.
As a further improvement of the utility model, one end of the side pull steel wire rope is fixed on one side of the screen winding drum close to the end frame, and the other end of the side pull steel wire rope is fixed on the side edge of the screen and is connected with the heavy hammer; the steel wire rope on each side of the screen can be arranged into a single path or multiple paths.
As a further improvement of the utility model, when a plurality of side-pulling steel wire ropes are adopted, the lower ends of the steel wire ropes can be provided with heavy hammers with different weights; the side pull spring and the side pull spring are distributed in parallel at equal intervals, and the stress and the deformation direction of the spring are parallel to the ground when the side pull spring is stressed.
The beneficial effects of the utility model are that: the up-rolling type reel screen of the utility model can meet the requirement that the screen does not occupy the ground or wall space, but needs to realize the projection of video playing occasions; when the projection function is required to be realized, the unreeling function of the screen reel is opened, the screen reel rotates, the screen wound on the screen reel is evenly and flatly unfolded at a constant speed until the screen is unfolded to the projection position, the screen reel stops rotating, the screen balances the stretching tension in the screen surface under the action of the screen tightening device, the screen is always kept flat and free of folds, and a perfect projection surface is provided for picture projection; when the projection is finished, the winding function of the screen winding drum is opened, the winding drum rotates reversely, the screen can be kept flat under the action of the screen tightening device, so that wrinkles and imprints are not generated in the winding process, and when the screen completely returns to the winding state, the screen tightening device stops rotating, so that a table top and a background space are free in a projection site, and other arrangement functions are realized in the projection site.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic view of a front view mechanical structure of the present invention;
FIG. 2 is a schematic view of the end head structure of the present invention;
fig. 3 is a schematic view of the structure of the multi-way side-pulling steel wire rope arrangement of the present invention;
fig. 4 is a schematic side view of the arrangement of the plurality of side-pulling steel wire ropes of the present invention;
fig. 5 is a schematic structural view of the single-pass side-pull wire rope arrangement of the present invention;
FIG. 6 is a schematic view of the installation of the top end of the present invention in connection with a building ceiling structure;
FIG. 7 is a side view installation schematic of the present invention with the top end face connected to a building ceiling structure;
FIG. 8 is a schematic view of the installation of the end side and the building wall of the present invention;
fig. 9 is a schematic view of the installation of the bottom surface of the end head and the column structure of the present invention;
fig. 10 is a schematic side view of the installation of the end bottom surface and the column structure of the present invention.
Detailed Description
In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, and the utility model is further explained below.
The first embodiment is as follows:
as shown in fig. 1 to 5, a roll-up screen includes a screen roll 2, a screen 3 disposed in the screen roll 2, and further includes:
the end frames 1 are arranged at two ends of the screen winding drum 2 and used for fixing the position of the screen winding drum 2;
the screen tensioning device 4 is fixed on the left side, the right side and the lower side of the screen 3, one end of the screen 3 and one end of the screen tensioning device 4 are both fixed on the screen winding drum 2, and can be wound on the screen winding drum 2 or unfolded from the screen winding drum 2 along with the rotation of the screen winding drum 2.
Adopt the utility model discloses an on roll up formula reel screen can satisfy and should not occupy ground or wall space, nevertheless needs to realize the projection demand of video broadcast occasion.
The end frame 1 comprises a cube formed by pipe fittings, the end frame 1 is provided with a motor 5, a transmission part 6 connected with the output end of the motor 5 and used for driving the screen winding drum 2 to rotate, and a self-aligning bearing seat 7 matched with the screen winding drum 2, and when the end frame is in actual application, the pipe fittings of cube edges or cube faces can be increased and decreased according to installation patterns of different screen winding drums 2.
The transmission part 6 is in chain transmission or gear transmission, the two ends of the screen winding drum 2 are provided with winding drum end heads 8, and the transmission part 6 is arranged between the output end of the motor 5 and the winding drum end heads 8.
The screen winding drum 2 comprises a drum body 9, the winding drum end heads 8 are fixed at two ends of the drum body 9, and the winding drum end heads 8 are coaxial with the geometric axis of the drum body 9; one end of the winding drum end 8 extends out of the end face of the barrel body 9 and can be matched with the self-aligning bearing seat 7, and the other end of the winding drum end 8 extends into the barrel body 9 and is fixed with the barrel body 9.
Specifically, this roll-up reel curtain can hang the installation in ceiling, roof truss, wall class department, also can adopt the mounting means that the double column supported the end to solve the problem that partial place sky does not have enough structural strength installation reel.
Self-aligning bearing frame 7 be fixed in end frame 1 through the fastener in, the mounted position of accessible adjustment fastener is in order to adjust the fixed position of self-aligning bearing frame 7, the utility model discloses an adaptable reel of self-aligning bearing frame 7 is in the rotation under the condition that 1/300 ~ 1/500 amount of deflection ratio changes.
As shown in fig. 6 and 7, further, while the above main structure is included, the top surface a of the head 1 may be fixed to the building ceiling structure a, the motor 5 may be fixed in the head 1 by a fastener, and the fixing position of the motor 5 in the end frame 1 may be changed by adjusting the installation position of the fastener.
As the practical application scheme of the utility model further refines, the fastener can be any one of screw, rivet, pin, double-screw bolt class.
The cylinder 9 is of a cylindrical thin-wall structure, so that the structural strength is ensured, the weight is lighter, and the design load of a building structure can be ensured not to exceed after installation; the two end faces of the cylinder are closed and coaxially fixed with the end 8 of the winding drum.
Specifically, the screen 3 can establish black edge 10 and sound transmission hole, black edge 10 is black, and sets up around screen 3, 3 screen faces of screen and black edge 10 can set up regularly distributed's sound transmission hole simultaneously.
This reel curtain adopts the equipment mode of clamp plate or buckle spare, can adjust the mounted position skew that causes because of the building size deviation in the installation to accessible adjusting motor 5 fixed position, the elasticity and the cooperation degree of adjusting drive disk assembly 6, just the utility model discloses a rotation under 7 adaptable reels of self-aligning bearing seat have certain amount of deflection circumstances.
The screen tensioning device 4 comprises side pull steel wire ropes 11 symmetrically distributed on two sides of the screen 3, a heavy hammer 12 fixed at the lower end of the side pull steel wire ropes 11, a side pull spring 13 connected between the side pull steel wire ropes 11 and the side edge or black edge 10 of the screen 3, and a screen lower edge pipe 14 which is parallel and fixed on the lower side edge of the screen 3; the lower screen edge tube 14 is a straight tube, and the length of the lower screen edge tube is greater than or equal to the width of the screen 3.
One end of the side pull steel wire rope 11 is fixed on one side of the screen drum 2 close to the end frame 1, and the other end of the side pull steel wire rope 11 is fixed on the side edge of the screen 3 and is connected with the heavy hammer 12; the steel wire rope 11 on each side of the screen 3 can be set to be single-track or multi-track so as to respectively control the screen side pulling at different heights.
When a plurality of side-pulling steel wire ropes 11 are adopted, the lower ends of the steel wire ropes can be provided with heavy hammers 12 with different weights so as to balance different side tensions generated by screens with different heights; one end of the side pull spring 13 is fixed on the side edge or the black edge 10 of the screen 3, one end of the side pull spring is fixed on the side pull steel wire rope 11, the side pull spring 13 and the side pull spring 13 are distributed in parallel at equal intervals, and the stress and the deformation direction of the spring are parallel to the ground when the side pull spring 13 is stressed.
When the projection function is needed to be realized, the unreeling function of the screen reel 2 is opened, the screen reel 2 rotates, the screen 3 reeled on the screen reel 2 is flatly unreeled at a constant speed until the screen 3 is unreeled to the projection position, and the screen reel 2 stops rotating.
At this moment, the screen 3 balances the stretching tension in the screen surface under the action of the screen tensioning device 4, the screen 3 is always kept flat without folds, and a perfect projection surface is provided for picture projection.
When the projection is finished, the winding function of the screen winding drum 2 is opened, the screen winding drum 2 rotates reversely, the screen 3 can be kept flat under the action of the screen tightening device 4, so that wrinkles and imprints are not generated in the winding process, and when the screen 3 completely returns to the winding state, the screen tightening device 4 stops rotating, so that a table top and a background space are left in a projection place, and other arrangement functions are realized in the projection place.
Example two:
as shown in fig. 1 to 5, a roll-up screen includes a screen roll 2, a screen 3 disposed in the screen roll 2, and further includes:
the end 1 is arranged at both ends of the screen winding drum 2 and used for fixing the position of the screen winding drum 2;
the screen tensioning device 4 is fixed on the left side, the right side and the lower side of the screen 3, one end of the screen 3 and one end of the screen tensioning device 4 are both fixed on the screen winding drum 2, and can be wound on the screen winding drum 2 or unfolded from the screen winding drum 2 along with the rotation of the screen winding drum 2.
Adopt the utility model discloses an on roll up formula reel screen can satisfy and should not occupy ground or wall space, nevertheless needs to realize the projection demand of video broadcast occasion.
As shown in fig. 1 and 2, the end frame 1 is a cube formed by pipes, and the pipes of the cube edges or cube surfaces can be increased or decreased according to different installation patterns of the screen roller 2.
Specifically, the end frame 1 on install motor 5, be used for driving 2 pivoted drive disk assembly 6 of screen reel, be used for with 2 complex aligning bearing seat 7 of screen reel with being connected of 5 outputs of motor.
As a refinement scheme of the utility model, the transmission part 6 is chain transmission or gear transmission.
Specifically, transmission part 6 set up between 5 output of motor and reel end 8.
The screen winding drum 2 comprises a drum body 9, the winding drum end heads 8 are fixed at two ends of the drum body 9, and the winding drum end heads 8 are coaxial with the geometric axis of the drum body 9; one end of the winding drum end 8 extends out of the end face of the barrel body 9 and can be matched with the self-aligning bearing seat 7, and the other end of the winding drum end 8 extends into the barrel body 9 and is fixed with the barrel body 9.
The utility model discloses during the actual installation is used, can hang the installation in ceiling, roof truss, wall class department, also can adopt the mounting means that the double-column supported the end to solve the problem that partial place sky does not have sufficient structural strength installation reel.
The self-aligning bearing seat 7 is fixed in the end head 1 through a fastener, the fixing position of the self-aligning bearing seat 7 can be adjusted by adjusting the mounting position of the fastener, and the self-aligning bearing seat 7 can adapt to the rotation of the winding drum under the condition that the deflection ratio of the winding drum is changed from 1/300 to 1/500.
As shown in fig. 6 and 7, further, while the above main body structure is included, the top surface a of the head 1 may be fixed to the building ceiling structure a, and the motor 5 may be fixed in the head 1 by a fastener, so that the fixing position of the motor 5 in the head 1 may be changed by adjusting the installation position of the fastener.
The fasteners can be screws, rivets, pins, and bolts.
The cylinder body 9 is of a cylindrical thin-wall structure, so that the structural strength is ensured, the weight is lighter, and the design load of a building structure can be ensured not to exceed after installation; the two cylindrical end surfaces of the cylinder body 9 are closed and are coaxially fixed with the end 8 of the winding drum.
Specifically, the screen 3 may have a black edge 10 and a sound-transmitting hole, and the black edge 10 is black and is disposed around the screen 3.
Furthermore, the screen surface and the black edge 10 of the screen 3 can be provided with sound-transmitting holes regularly distributed at the same time.
In the embodiment, the assembling mode of the pressing plate or the clamping buckle piece is adopted, the deviation of the installation position caused by the deviation of the building size can be adjusted in the installation process, the fixing position of the motor 5 can be adjusted, the tightness and the adaptability of the transmission part 6 can be adjusted, and the self-aligning bearing seat 7 can adapt to the rotation of the winding drum under the condition that a certain deflection exists.
The screen tensioning device 4 comprises side pull steel wire ropes 11 symmetrically distributed on two sides of the screen 3, a heavy hammer 12 fixed at the lower end of the side pull steel wire ropes 11, a side pull spring 13 connected between the side pull steel wire ropes 11 and the side edge or the black edge 10 of the screen 3, and a screen lower edge tube 14 parallel to and fixed at the lower side edge of the screen 3.
Specifically, as the utility model discloses a scheme of further refining, screen lower limit pipe 14 be straight pipe fitting, length is more than or equal to 3 widths of screen.
One end of the side-pulling steel wire rope 11 is fixed on one side of the screen winding drum 2 close to the end 1, and the other end of the side-pulling steel wire rope 11 is fixed on the side of the screen 3 and connected with the heavy hammer 12.
Specifically, the utility model discloses a screen is every to incline wire rope 11 and can set up single track or multichannel to control not the screen side of co-altitude respectively and draw.
As shown in fig. 8, further, while the above main structure is included, the side B of the head 1 may be fixed to a building wall B, and the motor 5 may be fixed to the head 1 by a fastener, so that the fixing position of the motor 5 in the head 1 may be changed by adjusting the installation position of the fastener.
When a plurality of side-pulling steel wire ropes 11 act, the lower ends of the steel wire ropes can be provided with heavy hammers 12 with different weights so as to balance different side tensions generated by screens with different heights; one end of the side pull spring 13 is fixed on the side edge or the black edge 10 of the screen 3, and the other end is fixed on the side pull steel wire rope 11.
And the side pull springs 13 are distributed in parallel at equal intervals, and the stress and deformation directions of the springs are parallel to the ground when the side pull springs 13 are stressed.
When the projection function is needed to be realized, the unreeling function of the screen reel 2 is opened, the screen reel 2 rotates, the screen 3 reeled on the screen reel 2 is flatly unreeled at a constant speed until the screen 3 is unreeled to the projection position, the screen reel 2 stops rotating, the screen 3 balances the stretching tension in the screen surface under the action of the screen tightening device 4, the screen 3 is kept flat and free of wrinkles all the time, and a perfect projection surface is provided for picture projection.
When the projection is finished, the rolling function of the screen winding drum 2 is opened, the screen winding drum 2 rotates reversely, the screen 3 can be kept flat under the action of the screen tightening device 4, so that no wrinkle or impression appears in the winding process, and when the screen 3 completely returns to the winding state, the screen tightening device 4 stops rotating, so that a table top and a background space are left in the projection field, and other arrangement functions are realized in the projection field.
Example three:
as shown in fig. 1 to 5, a roll-up screen includes a screen roll 2, a screen 3 disposed in the screen roll 2, and further includes:
the end 1 is arranged at both ends of the screen winding drum 2 and used for fixing the position of the screen winding drum 2;
the screen tightening device 4 is fixed on the left and right sides and the lower side of the screen 3, the screen 3 and one end of the screen tightening device 4 are fixed on the screen winding drum 2, and can be wound on the screen winding drum 2 or unfolded from the screen winding drum 2 along with the rotation of the screen winding drum 2.
Adopt the utility model discloses an on roll up formula reel screen can satisfy and should not occupy ground or wall space, nevertheless needs to realize the projection demand of video broadcast occasion.
The end frame 1 constitute the cube by the pipe fitting, end frame 1 on install motor 5, be connected with 5 output ends of motor be used for driving 2 pivoted drive part 6 of screen reel, be used for with 2 complex self-aligning bearing frame 7 of screen reel.
The utility model discloses an end frame 1 can increase and decrease the pipe fitting of cube edge or cubic according to 2 installation pattern of different screen reel.
The transmission component 6 is chain transmission or gear transmission, and the transmission component 6 is arranged between the output end of the motor 5 and the end 8 of the winding drum.
The screen drum 2 include barrel 9, drum end 8 is fixed in the both ends of barrel 9, drum end 8 coaxial with barrel 9 geometric axis, the one end of drum end 8 stretch out barrel 9 terminal surface can cooperate with self-aligning bearing seat 7, the other end of drum end 8 stretches into in the barrel 9 and is fixed with barrel 9.
The roll-up type winding drum curtain can be hung and installed at the ceiling, a roof truss and a wall, and can also adopt an installation mode that the end heads are supported by double upright posts so as to solve the problem that the winding drum is not installed above part of fields with enough structural strength.
The self-aligning bearing seat 7 is fixed in the end head 1 through a fastener, the fixing position of the self-aligning bearing seat 7 can be adjusted by adjusting the mounting position of the fastener, and the self-aligning bearing seat 7 can adapt to the rotation of the winding drum under the condition that the deflection ratio of the winding drum is changed from 1/300 to 1/500.
As shown in fig. 6 and 7, further, while the above main body structure is included, the top surface a of the head 1 may be fixed to the building ceiling structure a, the motor 5 may be fixed in the head 1 by a fastener, and the fixing position of the motor 5 may be changed in the head 1 by adjusting the installation position of the fastener.
Specifically, the fastener can be a screw, a rivet, a pin, a stud and the like.
The cylinder body 9 is of a cylindrical thin-wall structure, so that the structural strength is ensured, the weight is lighter, and the design load of a building structure can be ensured not to exceed after installation; the two end faces of the cylinder are closed and coaxially fixed with the end 8 of the winding drum.
The screen 3 can be provided with a black edge 10 and sound transmission holes, the black edge 10 is black and is arranged around the screen 3, and the screen surface and the black edge 10 of the screen 3 can be provided with the sound transmission holes which are regularly distributed at the same time.
This reel curtain adopts the equipment mode of clamp plate or buckle spare, can adjust the mounted position skew that causes because of building size deviation in the installation to accessible adjusting motor 5 fixed position adjusts the elasticity and the cooperation degree of drive disk assembly 6, and adopts the rotation of adaptable reel of self-aligning bearing seat 7 under the certain amount of deflection condition.
The screen tensioning device 4 comprises side pull steel wire ropes 11 symmetrically distributed at two sides of the screen 3, a heavy hammer 12 fixed at the lower end of the side pull steel wire ropes 11, a side pull spring 13 connected between the side pull steel wire ropes 11 and the side edge or black edge 10 of the screen 3, and a screen lower edge pipe 14 parallel to and fixed at the lower side edge of the screen 3; the lower screen edge tube 14 is a straight tube, and the length is greater than or equal to the width of the screen 3.
One end of the side pull steel wire rope 11 is fixed on the side, close to the end head 1, of the screen drum, and the other end of the side pull steel wire rope 11 is fixed on the lower side edge of the screen 3 and is connected with the heavy hammer 12; the steel wire rope 11 on each side of the screen can be provided with a single channel or a plurality of channels so as to respectively control the side pulling of the screen with different heights.
As shown in fig. 9 and 10, further, while including the above main structure, the bottom surface C of the head 1 may be fixed with the pillar structure C; the motor 5 is fixed in the head 1 through a fastener, and the fixing position of the motor 5 in the head 1 can be changed by adjusting the mounting position of the fastener.
When a plurality of side-pull steel wire ropes 11 act, the lower ends of the steel wire ropes can be provided with heavy hammers 12 with different weights so as to balance different side tensions generated by screens with different heights;
one end of the side pull spring 13 is fixed on the side edge or the black edge 10 of the screen 3, and the other end of the side pull spring 13 is fixed on the side pull steel wire rope 11.
Further, the side pull springs 13 and the side pull springs 13 are equidistantly and parallelly distributed, and the stress and deformation directions of the springs are parallel to the ground when the side pull springs 13 are stressed.
When the projection function is required to be realized, the unwinding function of the screen winding drum 2 is opened, the screen winding drum 2 rotates, the screen 3 wound on the screen winding drum 2 is flatly unfolded at a constant speed until the screen 3 is unfolded to the projection position, the screen winding drum 2 stops rotating, the screen 3 balances the stretching tension in the screen surface under the action of the screen tensioning device 4, the screen 3 is kept flat all the time without folds, and a perfect projection surface is provided for the picture projection;
when the projection is finished, the winding function of the screen winding drum 2 is opened, the screen winding drum 2 starts to rotate reversely, the screen can be kept flat under the action of the screen tightening device 4, so that wrinkles and imprints are not generated in the winding process, and when the screen 3 completely returns to the winding state, the screen tightening device 4 stops rotating, so that a table top and a background space are left in a projection place, and other arrangement functions are realized in the projection place.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that all the embodiments and descriptions are provided in the present invention, and that various changes and modifications can be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides an upward roll formula reel screen, includes screen reel (2), sets up screen (3) in screen reel (2), its characterized in that: further comprising:
the end frames (1) are arranged at two ends of the screen winding drum (2) and are used for fixing the position of the screen winding drum (2);
the screen tightening device (4) is fixed on the left side, the right side and the lower side of the screen (3), one end of the screen (3) and one end of the screen tightening device (4) are fixed on the screen winding drum (2), and the screen winding drum (2) can wind or stretch on the screen winding drum (2) along with the rotation of the screen winding drum (2).
2. The roll-up screen of claim 1, wherein: the end frame (1) constitute the cube by the pipe fitting, end frame (1) on install motor (5), be connected with motor (5) output be used for driving screen reel (2) pivoted drive part (6), be used for with screen reel (2) complex aligning bearing frame (7).
3. The roll-up screen of claim 2, wherein: the motor (5) is fixed in the end frame (1) through a fastener, and the fixing position of the motor (5) in the end frame (1) can be changed by adjusting the mounting position of the fastener.
4. The roll-up screen of claim 2, wherein: the screen winding drum is characterized in that the transmission part (6) is in chain transmission or gear transmission, winding drum end heads (8) are arranged at two ends of the screen winding drum (2), and the transmission part (6) is arranged between the output end of the motor (5) and the winding drum end heads (8).
5. The roll-up screen of claim 4, wherein: the screen winding drum (2) comprises a drum body (9), winding drum end heads (8) are fixed at two ends of the drum body (9), and the winding drum end heads (8) are coaxial with the geometric axis of the drum body (9); one end of the winding drum end (8) extends out of the end face of the drum body (9) and can be matched with the aligning bearing seat (7), and the other end of the winding drum end (8) extends into the drum body (9) and is fixed with the drum body (9).
6. The roll-up screen of claim 5, wherein: the self-aligning bearing seat (7) is fixed in the end frame (1) through a fastener, and the fixing position of the self-aligning bearing seat (7) can be adjusted by adjusting the mounting position of the fastener.
7. The roll-up screen of claim 5, wherein: the cylinder body (9) is of a cylindrical thin-wall structure, and two end faces of the cylinder are closed and coaxially fixed with the end head (8) of the winding drum; the screen (3) can be provided with black edges (10) and sound-transmitting holes, the black edges (10) are black and are arranged around the screen (3), and the screen surface and the black edges (10) of the screen (3) can be provided with the sound-transmitting holes which are regularly distributed.
8. The roll-up screen of claim 1, wherein: the screen tensioning device (4) comprises side pull steel wire ropes (11) symmetrically distributed on two sides of the screen (3), a heavy hammer (12) fixed at the lower end of the side pull steel wire ropes (11), a side pull spring (13) connected between the side pull steel wire ropes (11) and the side edge or the black edge (10) of the screen (3), and a screen lower edge pipe (14) parallel to and fixed on the lower side edge of the screen (3); the lower side tube (14) of the screen is a straight tube, and the length of the lower side tube is greater than or equal to the width of the screen (3).
9. The roll-up screen of claim 8, wherein: one end of the side pull steel wire rope (11) is fixed on one side, close to the end frame (1), of the screen drum (2), and the other end of the side pull steel wire rope (11) is fixed on the side edge of the screen (3) and connected with the heavy hammer (12); the steel wire rope (11) on each side of the screen (3) can be set to be single-track or multi-track.
10. The roll-up screen of claim 9, wherein: when a plurality of side-pulling steel wire ropes (11) are adopted, the lower ends of the steel wire ropes can be provided with heavy hammers (12) with different weights; the side pull spring (13) and the side pull spring (13) are distributed in parallel at equal intervals, and the stress and the deformation direction of the spring are parallel to the ground when the side pull spring (13) is stressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222765370.7U CN218471119U (en) | 2022-10-20 | 2022-10-20 | Upward-rolling type winding drum screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222765370.7U CN218471119U (en) | 2022-10-20 | 2022-10-20 | Upward-rolling type winding drum screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218471119U true CN218471119U (en) | 2023-02-10 |
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ID=85148620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222765370.7U Active CN218471119U (en) | 2022-10-20 | 2022-10-20 | Upward-rolling type winding drum screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218471119U (en) |
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- 2022-10-20 CN CN202222765370.7U patent/CN218471119U/en active Active
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