CN217113038U - Folding curtain - Google Patents

Abstract

The utility model discloses a folding curtain, including folding leg, curtain and foot rest, the folding leg includes main part and folding bone spare, be provided with a plurality of on the main part and extend along equidirectional not retrieve the action folding bone spare, the distal end of every folding bone spare is connected with the different positions at curtain edge respectively, the foot rest is connected in order to support on the main part. Folding curtain simple structure, can be convenient assemble the use, dismantle and accomodate, easy operation, laborsaving need not many people and collaborates, single can accomplish and install and remove to occupation when accomodating the state is small, save space, effectively improve the portability.

Description

Folding curtain

Technical Field

The utility model relates to a projection equipment technical field especially relates to a folding curtain.

Background

The projector has the advantages of small size, light weight, large picture size (generally 80-150 inches), high definition of picture quality, convenience in carrying and the like, is applied more and more widely, particularly, the projector is matched with a portable curtain to further improve portability, and can be conveniently applied to an outdoor environment. The screen is a carrier of the picture of the projector, which usually needs to reflect through the screen to present the picture to the eyes of the viewer, and the size of the projection screen also determines the size of the picture. At present portable curtain mainly includes coiling pull formula and assembled two kinds, coiling pull formula simple structure, high durability and convenient use, it is convenient that the installation is accomodate, but the volume is still great, usually use the long limit of picture as the coiling axial, 80 cun coiling pull formula curtain still has about 2.2 meters length when accomodating the state, portability is still relatively poor, and assembled curtain is less at the volume of accomodating the state, but need carry out the skeleton installation, beat ground nail, complicated operation such as acting as go-between is fixed, need many people's interoperation and certain experience just can accomplish the equipment of curtain, it installs to be difficult to single realization, it is more loaded down with trivial details difficult to install and accomodate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve and the technical task who provides improve prior art, provide a folding curtain, solve among the prior art portable curtain or accomodate the bulky portability that influences of state, or install the complicated inconvenient problem of operation of use.

For solving the above technical problem, the technical scheme of the utility model is that:

the utility model provides a folding curtain, includes folding leg, curtain and foot rest, the folding leg includes main part and folding bone spare, be provided with a plurality of on the main part and extend along different directions and retrieve the action folding bone spare, the distal end of every folding bone spare is connected with the different positions at curtain edge respectively, the foot rest is connected in order to support on the main part. Folding curtain simple structure, can be convenient assemble the use, dismantle and accomodate, easy operation, laborsaving need not many people and collaborates, single can accomplish and install and remove to occupation when accomodating the state is small, save space, effectively improve the portability.

Further, folding bone spare is for cutting fork extending structure, simple structure, and easy to carry out, and the action reliability that expandes to retrieve is high, and the expansion ratio is big, can be applicable to the large size curtain, ensures the little volume under the recovery state simultaneously to structural stability under the expansion state is good, and support curtain that can be stable guarantees the planarity of curtain when the expansion state, ensures projection picture stability, improves and sees the shadow and experiences.

Further, folding bone spare includes bone pole one and bone pole two, bone pole one links to each other with two articulations of bone pole, bone pole one is stamping forming's U-shaped groove spare, bone pole two include two parallel arrangement's rigidity strip, and structural strength is high, stability is good, has stronger holding power, can effective anti-wind, and folding bone spare is difficult for buckling, deformation, ensures that can abundant expandes the curtain completely, ensures the plane nature of curtain when the expansion state.

Further, the distal end of folding bone spare still is provided with the elastic arm that is used for being connected with the curtain, is in when the curtain is in the expansion state the elastic arm is in the deformation state, realizes the effect that elasticity struts to the curtain, utilizes the elastic arm to eliminate the error of processing, installation, can ensure the sufficiency that the curtain expandes, and the elastic arm also plays the guard action to folding bone spare simultaneously, when receiving wind-force or unexpected impact, the elastic arm can play the cushioning effect, avoids folding bone spare permanent impaired deformation, increase of service life.

Further, still include power unit, power unit drive folding bone spare is automatic extends and retrieves the action, need not the folding bone spare of manual operation and extends and retrieve the action, uses manpower sparingly, improves and uses the convenience, also can avoid artifical maloperation and lead to folding bone spare impaired simultaneously, ensures can long-term stable fully expand the curtain and abundant draw in order to reduce the occupation volume.

Furthermore, all folding bone spare is by same driving piece drive in order to extend to retrieve the action, improves the simple operation nature, and one-time action can be with folding curtain expansion or draw in.

Further, the main part includes the mobile jib, the mobile jib perpendicular to is the curtain surface under the expansion state, the driving piece slides and sets up at the mobile jib, simple structure, easy to carry out, and the action reliability is high.

Further, the main part is still including being used for the bracing piece be connected with the foot rest, the bracing piece rotates to be connected on the mobile jib to be connected through the transfer line between driving piece and the bracing piece, expand in step and retrieve with folding bone spare with the drive bracing piece, but the bracing piece also adopts beta structure, can reduce the volume that occupies when accomodating, improves the convenience, and the bracing piece is driven with the synchronization action by the driving piece with folding bone spare, can reduce the operation action number of times, improves the convenience of using.

Further, set up on the curtain and follow the steel wire that the curtain edge was arranged, the distal end and the steel wire of folding bone spare are connected, utilize the steel wire to improve the structural stability at curtain edge, utilize the local tractive effort that receives of steel wire ability dispersion curtain, ensure the integrity of curtain when guaranteeing that the curtain fully expandes, improve the planarization of curtain expansion state.

Further, be provided with on the steel wire with curtain complex stopper, utilize the stopper to ensure the curtain length width size accuracy degree under the state of expanding.

Compared with the prior art, the utility model discloses the advantage lies in:

the folding curtain of the utility model occupies small volume when in the storage state, effectively saves space and improves portability, and the size of the storage state of the folding curtain is a cylinder with the length of 35cm and the diameter of 25cm under the condition that the folding curtain does not comprise a foot rest;

the assembly, the use, the disassembly and the storage can be conveniently carried out, the operation is simple and labor-saving, the assembly and the disassembly can be completed by one person without the cooperation of multiple persons, and the use convenience can be further improved by adopting an automatic control mode;

the folding curtain can be fully unfolded, the smoothness is good when the folding curtain is in an unfolded state, and the quality of a projection picture is guaranteed.

Drawings

Fig. 1 is a schematic view of the overall structure of the folding curtain of the present invention;

FIG. 2 is a schematic structural view of a folding stand;

FIG. 3 is a partial schematic view of a folded bone element;

FIG. 4 is a schematic structural view of a main body of the folding stand;

FIG. 5 is a schematic view of the structure at the top corner of the curtain;

fig. 6 is a schematic view of a configuration for increasing the number of folded bony elements.

In the figure:

the folding bone piece comprises a folding bone piece 1, a first bone rod 11, a second bone rod 12, an elastic arm 13, a curtain 2, a foot rest 3, a driving piece 4, a main rod 5, a supporting rod 6, a steel wire 7 and a limiting block 71.

Detailed Description

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

The embodiment of the utility model discloses folding curtain has both effectively reduced the volume of accomodating the state, improves the portability, installs simultaneously, accomodates the simple operation, single can operate, and it is more convenient to use.

As shown in fig. 1 to 5, a folding curtain mainly comprises a folding frame, a curtain 2 and a foot rest 3, wherein the folding frame comprises a main body part and folding bone members 1, the main body part is provided with a plurality of folding bone members 1 which extend and recover actions along different directions, the far end of each folding bone member 1 is respectively connected with different positions at the edge of the curtain 2, and the foot rest 3 is connected with the main body part to support.

Curtain 2 is rectangle at the expansion state, folding bone spare 1 is provided with four at least, and the four corners of rectangle curtain 2 is connected with the distal end of a folding bone spare 1 respectively to in order to launch rectangle curtain 2 through the four corners of tractive rectangle curtain 2 when folding bone spare 1 is in the extension state, adopt this kind of mode can effectually launch the curtain, and guarantee the sufficiency of launching, and then guarantee curtain 2 planarization when the expansion state, improve projection picture quality. Still can increase when the size of curtain 2 is too big the quantity of folding bone spare 1, as shown in fig. 6, folding bone spare 1 is provided with eight altogether, wherein four still are connected with the four corners of curtain 2, other four are then connected respectively with the middle part on two long limits of curtain and the middle part on two broadsides, the extension length of folding bone spare 1 that is connected respectively with the middle part on two long limits of curtain and the middle part on two broadsides is shorter than the extension length of folding bone spare 1 who is connected with 2 four corners of curtain, adopt more points to draw and prop up the curtain, reduce the local atress of curtain, can improve the stability of strutting of curtain, improve the planarization of curtain expansion state.

In this embodiment, the folding rib member 1 is a scissor type telescopic structure, has a simple structure, has good structural stability, is not easy to deform, and can stably support the curtain in an extending state, so as to ensure the flatness of the curtain in an extending state, the folding rib member 1 comprises a first rib bar 11 and a second rib bar 12, the first rib bar 11 is hinged with the second rib bar 12, the first rib bar 11 is a stamped U-shaped groove member, the second rib bar 12 comprises two parallel rigid strips, preselecting the rigid strips into aluminum alloy strips, the structure is light and high in strength, specifically, the first rib bar 11 and the second rib bar 12 are respectively provided with a plurality of ribs, the proximal end of the first rib bar 11 is hinged on the main body part, the middle part of the first rib bar 12 is hinged with the middle part of the first rib bar 11, the proximal end of the second rib bar 12 is hinged with the distal end of the first rib bar 11, and the proximal end of the second rib bar 11 is hinged with the distal end of the first rib bar 12, the middle parts of the second bone rods 12 are hinged with the middle parts of the first bone rods 11, and the like, the plurality of first bone rods 11 and the plurality of second bone rods 12 are connected with each other to form a scissor type telescopic structure, the telescopic ratio is large, the length is enough when the folding bone pieces 1 are completely unfolded, and therefore the folding bone pieces are suitable for large-size curtains, compact in structure when the folding bone pieces are completely recovered, small in occupied size and effectively improved in portability.

Folding bone spare 1's distal end still is provided with the elastic arm 13 that is used for being connected with curtain 2, elastic arm 13 adopts elastic material to make, and in folding bone spare 1 when stretching out in order to expand curtain 2 completely, elastic arm 13 is in deformation state to expand curtain 2 elastic support, adopt elastic arm 13 both can eliminate machining error, prevent the condition that the curtain can not completely strut, perhaps the condition that the curtain can not completely open, and elastic arm 13 plays the guard action to folding bone spare 1, and elastic arm 13 can carry out elastic buffering, can effectively cushion when meetting strong wind or collision impact, avoids folding bone spare 1 to take place the permanent deformation of injury nature, increase of service life.

The method of extending and retrieving each of the folding bone members 1 can be controlled by the same driving member 4, but the operation is more complicated, preferably, all the folding bone members 1 are driven by the same driving member 4 to extend and retrieve, in this embodiment, the main body includes a main rod 5, the main rod 5 is perpendicular to the surface of the curtain 2 in the unfolded state, the proximal ends of the first bone rods 11 of all the folding bone members 1 are hinged to the main rod 5, the driving member 4 is slidably sleeved on the main rod 5, the proximal ends of the first bone rods two 12 of all the folding bone members 1 are hinged to the driving member 4, so that the driving member 4 can simultaneously drive all the folding bone members 1 to extend and retrieve the motion synchronously when sliding along the main rod 5, specifically, when the driving member 4 slides along the main rod 5, the proximal ends of the first bone rods two 12 axially move along the main rod 5, thereby changing the included angle between the first bone rod 11 and the second bone rod 12, namely realizing the driving of the folding bone component 1 to extend and retract.

The driving piece 4 can be manually controlled to move to unfold or fold the folding curtain, and a power mechanism can also be arranged, the power mechanism is used for driving the folding bone pieces 1 to automatically extend and retract, so that the labor is saved, the use convenience is improved, in this embodiment, the folding bone 1 is driven by a power mechanism, which comprises a motor and a transmission assembly, the transmission component is a screw rod pair, the motor drives the driving piece 4 to move along the axial direction of the main rod 5 through the screw rod pair, thereby realize that drive folding bone spare 1 extends and retrieves the action to, folding curtain can with projecting apparatus coordinated control, then can send the start signal to the power unit of folding curtain when the projecting apparatus starts, power unit moves in order to launch folding curtain, sends the shutdown signal to the power unit of folding curtain when the projecting apparatus shuts down, and power unit moves automatic folding curtain and draws in.

In this embodiment, the main body further comprises a support rod 6 for connecting with the foot rest 3, the support rod 6 is rotatably connected to the main rod 5, and the driving piece 4 is connected with the supporting rod 6 through a transmission rod to drive the supporting rod 6 and the folding bone piece 1 to be unfolded and recovered synchronously, when the support bars 6 are in the unfolded state, the support bars 6 are vertical and perpendicular to the main bar 5, and when the bracing piece 6 was in the recovery state, bracing piece 6 was on a parallel with mobile jib 5, reduced the volume of taking in the state, improved the portability, mobile jib 5 and bracing piece 6 adopted the aluminum alloy pipe, and the light-duty intensity of structure is high, and foot rest 3 specifically is the tripod, and foot rest 3 is independent part, and foot rest 3 can be dismantled with bracing piece 6 and be connected, conveniently takes in, improves the portability, and foot rest 3 is collapsible structure equally, occupies high 30cm, diameter 10 cm's cylinder space under its state of taking in.

As shown in fig. 5, the curtain 2 is provided with a steel wire 7 arranged along the edge of the curtain 2, and the flexible arm 13 at the distal end of the folding rib member 1 is connected with the steel wire 7 to support and unfold the curtain 2. Folding bone member 1 is applyed on steel wire 7 when strutting curtain 2, utilizes the local tractive effort that receives of steel wire 7 dispersion curtain, when guaranteeing to expand curtain 2 fully in order to ensure the plane nature, avoids curtain 2 local to receive too big effort and damage. Be provided with on the steel wire 7 with curtain 2 complex stopper 71, can guarantee that the curtain is length and width under the state of strutting to be an accurate value, for example the length of curtain is 190cm 2cm, and the width is 120cm 2cm, and curtain 2 specifically adopts the white curtain that the material is softer, thickness is thinner, and the edge of curtain carries out the lockstitching and handles, and the steel wire penetrates in the edge of curtain.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims (10)

1. The utility model provides a folding curtain, its characterized in that, includes folding leg, curtain (2) and foot rest (3), the folding leg includes main part and folding bone spare (1), be provided with a plurality of on the main part and extend along equidirectional not retrieve the action folding bone spare (1), the distal end of every folding bone spare (1) is connected with the different positions at curtain (2) edge respectively, foot rest (3) are connected in order to support on the main part.

2. Folding curtain as claimed in claim 1, characterized in that the folding bones (1) are of scissor-like telescopic construction.

3. Folding curtain as claimed in claim 2, characterized in that said folding bone (1) comprises a first (11) and a second (12) rod, said first (11) and second (12) rods being hinged, said first (11) rod being a stamped U-shaped channel, said second (12) rod comprising two parallel rigid strips.

4. Folding curtain as claimed in claim 1, characterized in that the distal ends of the folding bones (1) are also provided with elastic arms (13) for connection with the curtain (2).

5. Folding curtain as in claim 1, characterized in that it further comprises power means which drive the folding members (1) to automatically perform the stretching and retraction actions.

6. Folding curtain as claimed in any one of claims 1 to 5, characterized in that all the folding members (1) are driven by the same drive member (4) to perform the stretching and retracting action.

7. The folding curtain as claimed in claim 6, wherein the main body comprises a main rod (5), the main rod (5) is perpendicular to the surface of the curtain (2) in the unfolded state, and the driving member (4) is slidably disposed on the main rod (5).

8. The folding curtain as claimed in claim 7, wherein the main body further comprises a support rod (6) for connecting with the foot rest (3), the support rod (6) is rotatably connected to the main rod (5), and the driving member (4) is connected with the support rod (6) through a transmission rod so as to drive the support rod (6) to be synchronously unfolded and retracted with the folding rib member (1).

9. Folding curtain as claimed in any one of the claims 1 to 5, characterized in that the curtain (2) is provided with steel wires (7) arranged along the edges of the curtain (2), the distal ends of the folding bones (1) being connected to the steel wires (7).

10. Folding curtain as claimed in claim 9, characterized in that the steel wire (7) is provided with a stop (71) cooperating with the curtain (2).

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