CN213690214U - Sectional type projection screen and projection equipment - Google Patents

Abstract

The utility model provides a sectional type projection curtain and projection equipment, the sectional type projection curtain includes two at least projection monomers, the housing connecting rod, the reelpipe connecting rod, the projection monomer includes the housing subassembly, the reelpipe subassembly, the curtain, the housing subassembly includes the housing, at least one housing connecting hole has been seted up to the housing, the reelpipe subassembly includes the reelpipe, the reelpipe rotationally sets up on the housing, the curtain is convoluteed on the reelpipe, the housing connecting rod is used for connecting two adjacent free housings of projection, the housing connecting rod sets up with the configuration of housing connecting hole, the reelpipe connecting rod is used for connecting two adjacent free reelpipes of projection. Through setting up housing connecting rod and reelpipe connecting rod, the housing can be in the same place through the housing connecting rod concatenation, and the reelpipe can be in the same place through the reelpipe connecting rod concatenation to make a plurality of projection monomers can splice conveniently. The housing connecting rod and the reel pipe connecting rod can reduce the gap of the splicing position and reduce the uneven condition after splicing.

Description

Sectional type projection screen and projection equipment

Technical Field

The utility model relates to a projection equipment research field, especially a sectional type projection curtain and projection equipment.

Background

With the improvement of the living standard of people, the performance requirements of consumers on projection equipment are continuously improved, and the requirements on large-screen projection screens are rising. The projection screen of big screen among the prior art generally constitutes through the concatenation of a plurality of monomer projection screen, both can the exclusive use monomer projection screen, also can make up monomer projection screen to use together when needs, forms the screen of broad width. However, the existing projection screen capable of being spliced is inconvenient to splice, and the connection positions of the adjacent projection screens may be misaligned or have gaps, so that the use effect is affected.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a sectional type projection curtain and projection equipment, sectional type projection curtain concatenation is convenient.

According to the utility model provides a sectional type projection curtain, including two at least projection monomers, housing connecting rod, reelpipe connecting rod, the projection monomer includes housing subassembly, reelpipe subassembly, curtain, the housing subassembly includes the housing, at least one housing connecting hole has been seted up to the housing, the reelpipe subassembly includes the reelpipe, the reelpipe rotationally sets up on the housing, the curtain is convoluteed on the reelpipe, the housing connecting rod is used for connecting adjacent two the projection monomer the housing, the housing connecting rod with the configuration of housing connecting hole sets up, the reelpipe connecting rod is used for connecting adjacent two the projection monomer the reelpipe.

According to the utility model provides a sectional type projection curtain has following technological effect at least: through setting up housing connecting rod and reelpipe connecting rod, the housing can be in the same place through the housing connecting rod concatenation, and the reelpipe can be in the same place through the reelpipe connecting rod concatenation to make a plurality of projection monomers can splice conveniently. The housing connecting rod and the reel pipe connecting rod can reduce the gap of the splicing position and reduce the uneven condition after splicing.

According to some embodiments of the utility model, sectional type projection curtain is including connecting the installing code, it is used for fixed adjacent two to connect the installing code the projection is free the housing.

According to some embodiments of the utility model, the projection monomer includes the curtain sill bar, the curtain sill bar is connected the one end of curtain, sectional type projection curtain include the sill bar connecting rod, the sill bar connecting rod is used for connecting adjacent two the projection monomer the curtain sill bar.

According to some embodiments of the present invention, the projection unit includes a support tube assembly disposed on the housing, the support tube assembly including at least one support tube that holds the roller tube.

According to some embodiments of the invention, the support tube assembly comprises a support frame disposed on the housing, the support tube being rotatably mounted on the support frame.

According to some embodiments of the invention, the support tube assembly comprises a support tube connecting rod, the support tube connecting rod is used for connecting two adjacent support tubes, the support tube connecting rod is rotatably arranged on the support frame.

According to some embodiments of the utility model, the bearing pipe subassembly includes the transmission body, the transmission body cover is established on the bearing pipe connecting rod, the transmission body with connect through the limit structure that the configuration set up between the bearing pipe.

According to some embodiments of the present invention, the roller tube assembly includes a tubular motor inserted in the roller tube.

According to some embodiments of the present invention, the housing assembly includes an end cover, the end cover is disposed on the housing, an end cover chute is disposed on the end cover, the reel pipe assembly includes a motor guide, the motor guide is movably disposed on the end cover chute, and the tubular motor is connected to the motor guide.

According to the utility model provides a projection equipment, include the utility model provides a sectional type projection curtain.

According to the utility model provides a projection equipment has following technological effect at least: through using the utility model provides a sectional type projection curtain can constitute bigger screen with a plurality of projection monomer concatenation together, and projection monomer concatenation is convenient, and the concatenation gap is little.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an isometric view of a segmented projection screen according to the present invention after splicing;

FIG. 2 is a schematic illustration of the splice location of FIG. 1;

FIG. 3 is a schematic illustration of the splicing of coils according to the present invention;

FIG. 4 is a side view of a sectional projection screen with end caps removed according to the present invention;

figure 5 is an inverted, schematic illustration of a support tube assembly according to the present invention;

figure 6 is an exploded view of the inverted support tube assembly according to the present invention;

figure 7 is an isometric view of a support tube assembly provided in accordance with the present invention;

fig. 8 is an isometric view of an end cap provided in accordance with the present invention;

fig. 9 is an isometric view of an electric machine according to the present invention;

fig. 10 is an isometric view of a curtain according to the present invention.

Reference numerals:

the device comprises a connecting installation code 2, an end cover 4, a bearing pipe 6, a housing 11, a housing connecting rod 14, a motor guide 16, a tubular motor 17, a transmission body 25, a support frame 26, a radial bearing 27, a bearing pipe connecting rod 28, a curtain 31, a curtain bottom rod 34, a roller pipe 36 and a roller pipe connecting rod 38.

Detailed Description

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

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

According to the utility model provides a sectional type projection curtain, including two at least projection monomers, housing connecting rod 14, reelpipe connecting rod 38, the projection monomer includes the housing subassembly, the reelpipe subassembly, curtain 31, the housing subassembly includes housing 11, at least one housing connecting hole has been seted up to housing 11, the reelpipe subassembly includes reelpipe 36, reelpipe 36 rotationally sets up on housing 11, curtain 31 is convoluteed on reelpipe 36, housing connecting rod 14 is used for connecting two adjacent free housings 11 of projection, housing connecting rod 14 sets up with the configuration of housing connecting hole, reelpipe connecting rod 38 is used for connecting two adjacent free reelpipes 36 of projection.

When a plurality of projection units of one sectional type projection screen or a plurality of projection units of a plurality of sectional type projection screens are spliced, as shown in fig. 2, one end of the housing connecting rod 14 is inserted into the housing connecting hole of one projection unit, the other end of the housing connecting rod 14 is inserted into the housing connecting hole of another projection unit, and the two housings 11 are spliced together. As shown in fig. 3, one end of the roll pipe connecting rod 38 is inserted into the roll pipe 36 of one projection unit, the other end of the roll pipe connecting rod 38 is inserted into the roll pipe 36 of the other projection unit, and the two roll pipes 36 are spliced together.

According to the utility model provides a sectional type projection curtain, through setting up housing connecting rod 14 and reelpipe connecting rod 38, the projection monomer passes through housing connecting rod 14 location housing 11 when the concatenation, through reelpipe connecting rod 38 location reelpipe 36 to improve the position precision between the adjacent housing 11, improve the installation accuracy between the adjacent reelpipe 36, reduce the gap of concatenation position, reduce the uneven situation after the concatenation.

At least two housing connecting holes can be formed in the housing 11, and the plurality of housing connecting holes can play a role in limiting the rotational degree of freedom between the two housings 11. The shape of the housing connecting rod 14 may be a prism shape, the prism-shaped housing connecting rod 14 may be inserted into a housing connecting hole provided in the housing, and a side surface of the prism may contact the housing connecting hole, thereby restricting the rotational degree of freedom between the two housings 11. For example, as shown in fig. 2 and 4, in some embodiments, the housing connecting rod 14 is in a rectangular parallelepiped shape, the housing 11 is provided with two housing connecting holes, and the housing connecting rod 14 plays a role of positioning two adjacent housings 11 and also plays a role of limiting the rotational freedom between the two housings 11.

According to some embodiments of the utility model, sectional type projection curtain is including connecting installation code 2, connects installation code 2 and is used for two adjacent free housings of projection 11 of fixed. The connecting rod 14 realizes the positioning of the adjacent housings 11, and the connecting installation code 2 realizes the fixation of the adjacent housings 11, so that the connection between the housings 11 is more stable. Connect installation sign indicating number 2 and housing connecting rod 14 and guaranteed the bulk strength of the sectional type projection screen after the concatenation, simultaneously easy dismounting.

In some embodiments, the housing 11 is provided with a housing mounting groove, and the connection mounting code 2 is provided with a slide rail configured to be disposed with the housing mounting groove. Set up the housing mounting groove and can play the effect of location in advance when installation connection installation code 2, make the relative position relation of connecting installation code 2 and housing 11 more accurate. For example, as shown in fig. 2 and 4, the connection installation code 2 can move left and right along the housing installation groove, and the housing installation groove can reduce the situation that the connection installation code 2 is inclined and deviates from the symmetrical center of the housing 11 when the connection installation code 2 is installed. In some embodiments, the connection installation code 2 may further have an installation hole for connecting with a wall surface. Can install the sectional type projection screen on the wall through connecting installation sign indicating number 2, the sectional type projection screen need not set up other installation part, has richened the function of connecting installation sign indicating number 2, has reduced the part quantity of sectional type projection screen.

According to some embodiments of the utility model, the projection monomer includes curtain sill bar 34, and curtain sill bar 34 is connected in the one end of curtain 31, and the sectional type projection curtain includes the sill bar connecting rod, and the sill bar connecting rod is used for connecting two free curtain sill bars 34 of projection. As shown in fig. 4 and 10, the curtain 31 is held by the gravity of the curtain bottom rods 34 to reduce the fluctuation of the curtain 31, and the bottom rod connecting rods are connected with the curtain bottom rods 34, so that the integral consistency of the spliced sectional type projection screen is good, the fluctuation between the adjacent curtains 31 is not easy to occur, and the using effect of the spliced sectional type projection screen is improved.

According to some embodiments of the present invention, the projection unit includes a support tube assembly, the support tube assembly is disposed on the housing 11, the support tube assembly includes at least one support tube 6, and the support tube 6 holds the roller tube 36.

In some embodiments, the support tube assembly includes a support frame 26, the support frame 26 being disposed on the housing 11, and the support tube 6 being rotatably mounted on the support frame 26. For example, as shown in fig. 4 and 5, a plurality of support frames 26 are symmetrically disposed on the front and rear sides of the housing 11, and the support pipe 6 is rotatably inserted into the support frames 26. As the curtain 31 is retracted and the roller pipe 36 moves up and down, the roller pipe 36 can be automatically adjusted in position and height. The support tube 6, on the one hand, supports the roller tube 36 and, on the other hand, has a positioning effect, keeping the roller tube 36 in the middle of the housing 11. The pressure applied by the support pipe 6 to the curtain 31 can reduce wrinkles generated when the curtain 31 is stored. When the roller pipe 36 rotates, the support pipe 6 rotates following the roller pipe 36, thereby reducing resistance when the screen 31 is retracted. On the other hand, in the prior art, the roller tube 36 is generally installed in a fixed manner, and two ends of the roller tube 36 are fixed to the pivot points at two ends of the existing projection screen, so that the supporting force applied to the roller tube 36 is concentrated at the two ends, and the roller tube 36 deforms under the action of the gravity of the screen 31, thereby affecting the normal operation of the projection screen. The utility model discloses well bearing pipe 6 holds reelpipe 36, and the holding power is applyed on reelpipe 36 uniformly, can reduce reelpipe 36's deformation.

According to some embodiments of the present invention, the support tube assembly includes a support tube connecting rod 28, the support tube connecting rod 28 is used to connect two adjacent support tubes 6, and the support tube connecting rod 28 is rotatably disposed on the support frame 26. The bearer tube connecting rods 28 are capable of synchronizing the rotation of the respective bearer tubes 6. The support tube connecting rod 28 can be used to connect two support tubes 6 in the same support tube assembly, or to connect support tubes 6 between two projection units.

In some embodiments, the supporting tube assembly comprises a transmission body 25, the transmission body 25 is sleeved on a supporting tube connecting rod 28, and the transmission body 25 and the supporting tube 6 are connected through a limit structure. For example, as shown in fig. 5, 6, and 7, the support frame 26 is provided with two radial bearings 27, the support tube connecting rod 28 is inserted into the two radial bearings 27, the transmission body 25 is provided with a square hole disposed in the support tube connecting rod 28, and the two transmission bodies 25 are inserted into the left and right sides of the support tube connecting rod 28 and positioned by snap springs. The limiting structure comprises a protrusion formed on the bearing pipe 6 and a groove formed on the transmission body 25, the transmission body 25 and the bearing pipe 6 are positioned through interaction of the protrusion and the groove, and torque is transmitted through the protrusion and the groove. The radial bearing 27 can reduce the frictional resistance of the retainer tube connecting rod 28, thereby reducing the resistance when the curtain 31 is retracted and extended.

According to some embodiments of the present invention, the roller tube assembly includes a tubular motor 17, the tubular motor 17 being inserted into the roller tube 36. As the roller tube 36 moves up and down, the tubular motor 17 follows the up and down movement of the roller tube 36.

In some embodiments, the housing assembly includes an end cap 4, the end cap 4 is disposed on the housing 11, an end cap chute is disposed on the end cap 4, the roller tube assembly includes a motor guide 16, the motor guide 16 is movably disposed in the end cap chute, and a tubular motor 17 is connected to the motor guide 16. For example, as shown in fig. 8 and 9, the end caps 4 are respectively disposed on the left and right sides of the housing 11, the motor guide 16 can move up and down along the end cap sliding groove, the tubular motor 17 is provided with a square hole, the motor guide 16 is inserted into the hole of the tubular motor 17, so as to drive the tubular motor 17 to move up and down, the end cap sliding groove can play a role in guiding and positioning, and limit the degree of freedom of the tubular motor 17 in moving back and forth, so that the tubular motor 17 and the roller pipe 36 can move up and down more smoothly.

According to the utility model provides a projection equipment, include the utility model provides a sectional type projection curtain.

According to the utility model provides a projection equipment, through using the utility model provides a sectional type projection curtain can constitute bigger screen with a plurality of projection monomer concatenation together, and sectional type projection curtain concatenation is convenient, and the concatenation gap is little.

The projection device may include a plurality of segmented projection screens, and the projection device may further include a projector or the like for projection.

The sectional type projection screen according to the present invention is described in detail with reference to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, and fig. 10 in a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

The sectional type projection screen comprises at least two projection single bodies, wherein each projection single body comprises a housing component, a roller pipe component and a screen 31. The sectional type projection screen comprises a housing connecting rod 14, a connecting installation code 2, a roller pipe connecting rod 38 and a bottom rod connecting rod.

The housing component comprises a housing 11 and end covers 4, the end covers 4 are detachably covered at the left end and the right end of the housing 11, and openings for storing and releasing the curtain 31 are formed below the housing 11. The housing 11 is provided with a plurality of hollowed holes for reducing weight, the hollowed holes penetrate through the left end and the right end of the housing 11, the housing 11 is provided with two housing connecting holes for splicing the housing 11, and the housing connecting holes penetrate through the left end and the right end of the housing 11. The housing connecting rod 14 is in a cuboid shape, and the housing connecting rod 14 and the housing connecting hole are configured. Housing 11 is provided with the housing mounting groove, connects installation code 2 and is provided with the slide rail, connects installation code 2 and passes through the housing mounting groove setting on housing 11, connects to offer on installation code 2 to be used for the mounting hole of being connected with the wall. The end cover 4 is provided with an end cover sliding groove.

As shown in fig. 5, 6, and 7, the supporting tube assembly includes a supporting tube 6, a transmission body 25, a support frame 26, radial bearings 27, and a supporting tube connection rod 28, wherein the support frame 26 is disposed on the housing 11, the two radial bearings 27 are disposed on the support frame 26, the supporting tube connection rod 28 is inserted into the two radial bearings 27, the transmission body 25 is provided with a square hole configured with the supporting tube connection rod 28, and the two transmission bodies 25 are respectively inserted into the left and right sides of the supporting tube connection rod 28 and are positioned by snap springs. The transmission body 25 is formed with a groove. The inner wall of the bearing pipe 6 is provided with a bulge, the bearing pipe 6 is sleeved on the transmission body 25, the transmission body 25 and the bearing pipe 6 are positioned through the interaction of the bulge and the groove, and the torque is transmitted through the bulge and the groove.

The roller tube assembly includes a motor guide 16, a tubular motor 17, and a roller tube 36. The roller pipe assembly comprises a supporting pipe 6, a roller pipe 36, a motor guide piece 16, a controller and a motor guide piece 16, wherein the supporting pipe 6 supports the roller pipe 36, the motor guide piece 16 is movably arranged on an end cover sliding groove, the motor guide piece 16 can move up and down along the end cover sliding groove, the motor guide piece 16 is inserted into a tubular motor 17, the tubular motor 17 is inserted into the roller pipe 36, and the roller pipe assembly further comprises the controller which is connected with the tubular motor 17. A coil connecting rod 38 is used to connect the two coils 36 of two adjacent projection cells.

The curtain 31 is wound on a roller pipe 36, one end of the curtain 31 is fixed on the roller pipe 36, the other end of the curtain 31 is provided with a curtain bottom rod 34, and the curtain 31 is folded or unfolded along with the rotation of the roller pipe 36. The bottom rod connecting rod is used for connecting the curtain bottom rods 34 of two adjacent projection monomers.

When the sectional type projection screen works, the tubular motor 17 rotates to drive the rolling pipe 36 to rotate, and the curtain 31 is folded or put down. The roller pipe 36 moves up and down along with the folding or unfolding of the curtain 31, the supporting pipe 6 rotates along with the roller pipe 36, and the roller pipe 36 is positioned by the supporting pipe 6. The tubular motor 17 moves up and down along with the roller pipe 36, and the motor guide piece 16 and the end cover sliding groove guide and position the tubular motor.

When a plurality of projection monomers are assembled, as shown in fig. 2, two ends of the housing connecting rod 14 are respectively inserted into the housing connecting holes of two adjacent housings 11, the two housings 11 are spliced together through the housing connecting rod 14 and are fixed by connecting the mounting code 2 and screws, and the end covers 4 cover the left end and the right end of the spliced housings 11.

The left end and the right end of the reel pipe connecting rod 38 are respectively inserted into two adjacent reel pipes 36, and the two adjacent reel pipes 36 are spliced and positioned through the reel pipe connecting rod 38 and are fixed through screws. The tubular motor 17 is inserted into one end of the spliced roller tube 36.

The individual bearer tubes 6 are connected together by bearer tube connecting rods 28. The individual curtain bottom bars 34 are connected together by bottom bar connecting bars.

According to the utility model discloses sectional type projection curtain through adopting above design, can realize such some functions at least: through setting up housing connecting rod 14, reelpipe connecting rod 38, bearing pipe connecting rod 28, the sill bar connecting rod, the projection monomer is through housing connecting rod 14 location housing 11 when the concatenation, through reelpipe connecting rod 38 location reelpipe 36, through bearing pipe connecting rod 28 location bearing pipe 6, through sill bar connecting rod location curtain sill bar, thereby improve the position precision of projection monomer concatenation, reduce the gap of concatenation position, reduce the uneven situation behind the concatenation, improve the concatenation quality of sectional type projection curtain.

The support pipe 6 rotates along with the roller pipe 36, and the support pipe 6 is mounted through the radial bearing 27, so that the frictional resistance between the curtain and the support pipe 6 when the curtain 31 is retracted and extended can be reduced, and the retraction and the extension can be smooth. Each support pipe 6 is connected together and rotates synchronously, so that the spliced sectional type projection screen has good overall consistency, and the condition that the curtains 31 at different positions are not lifted synchronously is not easy to occur.

Thereby reelpipe connecting rod 38 combines the screw can transmit the moment of torsion between adjacent reelpipe 36, and tubular motor 17 can drive each reelpipe 36 after the concatenation and rotate together, makes the sectional type projection curtain bulk consistency after the concatenation good, is difficult for appearing the not synchronous condition of different positions curtain 31 lift.

The end cover sliding grooves can play a role in guiding and positioning, and limit the freedom degree of the front and back movement of the tubular motor 17, so that the up and down movement of the tubular motor 17 and the roller pipe 36 is smoother.

The bottom rod connecting rods are connected with the bottom rods 34 of all the curtains, so that the spliced sectional type projection screen is good in overall consistency, the condition of height fluctuation between the adjacent curtains 31 is not easy to occur, and the using effect of the spliced sectional type projection screen is improved.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A segmented projection screen, comprising:

the screen comprises at least two projection single bodies, wherein each projection single body comprises a housing component, a reel pipe component and a screen (31), the housing component comprises a housing (11), at least one housing connecting hole is formed in the housing (11), the reel pipe component comprises a reel pipe (36), the reel pipe (36) is rotatably arranged on the housing (11), and the screen (31) is wound on the reel pipe (36);

the housing connecting rod (14) is used for connecting the housings (11) of the two adjacent projection monomers, and the housing connecting rod (14) and the housing connecting hole are configured;

a roller tube connecting rod (38), wherein the roller tube connecting rod (38) is used for connecting the roller tubes (36) of two adjacent projection monomers.

2. The segmented projection screen of claim 1, wherein: the sectional type projection screen comprises a connecting installation code (2), and the connecting installation code (2) is used for fixing the casings (11) of two adjacent projection single bodies.

3. The segmented projection screen of claim 1, wherein: the projection monomer includes curtain sill bar (34), curtain sill bar (34) are connected the one end of curtain (31), and sectional type projection curtain includes the sill bar connecting rod, the sill bar connecting rod is used for connecting adjacent two the projection monomer curtain sill bar (34).

4. The segmented projection screen of claim 1, wherein: the projection monomer comprises a supporting pipe assembly, the supporting pipe assembly is arranged on the housing (11), the supporting pipe assembly comprises at least one supporting pipe (6), and the rolling pipe (36) is supported by the supporting pipe (6).

5. The segmented projection screen of claim 4, wherein: the supporting pipe component comprises a supporting frame (26), the supporting frame (26) is arranged on the housing (11), and the supporting pipe (6) is rotatably arranged on the supporting frame (26).

6. The segmented projection screen of claim 5, wherein: the supporting pipe assembly comprises supporting pipe connecting rods (28), the supporting pipe connecting rods (28) are used for connecting two adjacent supporting pipes (6), and the supporting pipe connecting rods (28) are rotatably arranged on the supporting frame (26).

7. The segmented projection screen of claim 6, wherein: the bearing tube assembly comprises a transmission body (25), the transmission body (25) is sleeved on the bearing tube connecting rod (28), and the transmission body (25) is connected with the bearing tube (6) through a limit structure arranged in a configuration mode.

8. The segmented projection screen of claim 1, wherein: the roller tube assembly includes a tubular motor (17), the tubular motor (17) being inserted into the roller tube (36).

9. The segmented projection screen of claim 8, wherein: the cover casing assembly comprises an end cover (4), the end cover (4) is arranged on the cover casing (11), an end cover sliding groove is formed in the end cover (4), the pipe coiling assembly comprises a motor guide piece (16), the motor guide piece (16) is movably arranged in the end cover sliding groove, and the tubular motor (17) is connected with the motor guide piece (16).

10. A projection device, characterized by: a projection apparatus comprising the segmented projection screen of any of claims 1 to 9.

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