CN216083392U

CN216083392U - Projection curtain frame of convenient equipment

Info

Publication number: CN216083392U
Application number: CN202122737283.6U
Authority: CN
Inventors: 容志军; 叶雪敏
Original assignee: Guangdong Aikemei Technology Co ltd
Current assignee: Guangdong Aikemei Technology Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-03-18
Anticipated expiration: 2031-11-09

Abstract

The utility model provides a projection curtain frame convenient to assemble, which comprises: the curtain comprises a curtain, a supporting device and a foot rest device, wherein the supporting device is arranged on the foot rest device, and the curtain is installed on the supporting device. Wherein the support device comprises: the base, cup joint spare and bracing piece, the cup joint spare rotates to be located on the base, the cup joint spare is connected the base with the foot rest device, the bracing piece is rotatable to be located on the base. And, set up on the base with cup joint piece complex block groove, set up on the base with bracing piece complex locking groove. The projection screen frame convenient to assemble can be assembled quickly and conveniently during use, so that the assembling time is saved.

Description

Projection curtain frame of convenient equipment

Technical Field

The utility model relates to the technical field of projection equipment, in particular to a projection screen frame convenient to assemble.

Background

The projection curtain is used with the projector, and the projector projects the received image signal onto the projection curtain, so that the multi-person watching is facilitated. The conventional projection curtain is usually hung on a wall so that a projector can project images, however, the projection curtain is not installed in some occasions, and when the projection curtain needs to be projected temporarily, a projection curtain frame needs to be built temporarily.

At present, projection screen racks on the market are often disassembled into a plurality of parts for convenient carrying and transportation, and then assembled when being used. Although convenient the transportation like this, but need splice a plurality of spare part during the equipment, the process is more loaded down with trivial details, decomposes the back part moreover and omits easily, leads to the unable normal use of projection curtain cloth holder, causes the loss.

Therefore, how to design a projection screen frame convenient to assemble is to enable the projection screen frame to be assembled quickly and conveniently when in use, so that the assembly time is saved, and the technical problem to be solved by technical personnel in the field is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a projection screen frame convenient to assemble, which can be quickly and conveniently assembled, so that the assembly time is saved.

The purpose of the utility model is realized by the following technical scheme:

a conveniently assembled projection screen frame comprising: the curtain comprises a curtain, a supporting device and a foot rest device, wherein the supporting device is arranged on the foot rest device, and the curtain is arranged on the supporting device;

the support device includes: the base, cup joint spare and bracing piece, the cup joint spare rotates to be located on the base, the cup joint spare is connected the base with the foot rest device, the bracing piece is rotatable to be located on the base.

In one embodiment, the base is provided with a clamping groove matched with the sleeve piece, and the base is provided with a locking groove matched with the supporting rod.

In one embodiment, the clamping groove and the locking groove are provided with elastic clamping jaws, and the elastic clamping jaws press the sleeve-connection piece or the supporting rod.

In one embodiment, a frame is arranged on the curtain, inserting holes are formed in the frame, a connecting piece is arranged at the end of the supporting rod, and a hooking portion matched with the inserting holes is arranged on the connecting piece.

In one embodiment, the frame is a hollow structure, and an end cover is arranged at the end part of the frame.

In one embodiment, a return spring and a guide sleeve are arranged at the end part of the support rod, the return spring is arranged between the support rod and the connecting piece, the guide sleeve is sleeved on the end part of the support rod, the return spring and the connecting piece, and the guide sleeve plays a role in guiding and limiting the connecting piece.

In one embodiment, the foot rest device comprises a main frame rod and a tripod arranged on the main frame rod, and the socket is mounted at the end part of the main frame rod.

In one embodiment, the main frame rod comprises a lifting rod and a fixing rod, the fixing rod is sleeved on the lifting rod, an elastic adjusting piece is arranged at the joint of the lifting rod and the fixing rod, and the elastic adjusting piece controls the lifting rod to slide up and down relatively.

In conclusion, the projection screen frame convenient to assemble can be assembled quickly and conveniently, so that the assembling time is saved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a conveniently assembled projection screen frame of the present invention in an expanded configuration;

FIG. 2 is an exploded view of the support device shown in FIG. 1;

FIG. 3 is a schematic view of the support device in a collapsed condition;

FIG. 4 is a schematic view of the conveniently assembled projection screen frame of the present invention in a retracted state;

FIG. 5 is a schematic view of the stand apparatus shown in FIG. 1;

FIG. 6 is a partially exploded view of the conveniently assembled projection screen frame of the present invention;

fig. 7 is a partial cross-sectional view of a conveniently assembled projection screen stand of the present invention.

Detailed Description

To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model provides a projection screen frame 10 convenient to assemble, aiming at quickly and conveniently completing the assembly when in use, thereby saving the assembly time. As shown in fig. 1, the projection screen frame 10, which is convenient to assemble, includes: the curtain 100, the supporting device 200 and the stand device 300, wherein the supporting device 200 is arranged on the stand device 300, and the curtain 100 is arranged on the supporting device 200. As shown in fig. 1 and 2, the supporting device 200 includes: the base 210, the socket 220 and the support rod 230, the socket 220 is rotatably disposed on the base 310, the socket 220 connects the base 210 and the foot stand device 300, and the support rod 230 is rotatably disposed on the base 310. Preferably, one end of the supporting rod 230 is provided with a hinge pin 231, and the supporting rod 230 is rotatably provided on the base 310 around the axis of the hinge pin 231.

The projection screen frame 10 of the present invention, which is convenient to assemble, has two states, respectively: an expanded state when in use and a contracted state when in carrying. Specifically, as shown in fig. 1 and 2, in the expanded state, the foot stand device 300 is erected on the ground and supports the supporting device 200 through the socket 220, the plurality of supporting rods 230 on the supporting device 200 radially extend with the base 210 as the center, and the ends of the supporting rods 230 are connected to the side of the curtain 100, so as to expand the curtain 100; as shown in fig. 3 and 4, in the retracted state, the plurality of support rods 230 rotate toward the same side of the base 210, that is, the support rods 230 are retracted toward the sleeve 220, and the stand device 300 is also retracted, as shown in fig. 4, after the retraction, the overall size is greatly reduced. The specific working principle will be explained below.

In the embodiment, as shown in fig. 2, the base 210 has an engaging groove 211 matching with the sleeve 220, and the base 210 has a locking groove 212 matching with the supporting rod 230. Preferably, the groove walls of the engaging groove 211 and the locking groove 212 are both provided with elastic clamping jaws 213, and the elastic clamping jaws 213 press the socket 220 or the supporting rod 230. During assembly, the socket 220 is connected to the stand device 300, the socket 220 is accommodated in the engaging groove 211, and the elastic clamping jaw 213 on the groove wall of the engaging groove 211 can clamp the socket 220; similarly, one end of the support bar 230 is received in the locking groove 212, and the support bar 230 is held by the elastic jaw 213. After being clamped, the sleeve 220 and the support rod 230 can be kept unchanged, so that the projection screen frame 10 in the unfolded state after being assembled is more stable.

In the present embodiment, as shown in fig. 1, the foot rest device 300 includes a main frame rod 310 and a tripod 320 disposed on the main frame rod 310, and the socket 220 is mounted on an end of the main frame rod 310. Tripod 320 is formed using tripod technology known to those skilled in the art, and therefore, the structure of tripod 320 will not be described in detail herein. In the extended state, the tripod 320 is erected on the ground, which can stably erect the main frame rod 310, thereby providing support for the curtain 100 and the support device 200; in the retracted state, the tripod 320 can be retracted to abut against the main frame bar 310, thereby reducing the overall size and facilitating transportation and carrying.

The operation of the conveniently assembled projection screen frame 10 of the present invention will now be explained with reference to the above-described structure:

in order to change the projection screen frame 10 from the retracted state to the extended state in the assembly process, as shown in fig. 3 to fig. 2, specifically, the tripod 320 is erected on the ground, the socket 220 is connected to the main frame rod 310, and the socket 220 is hinged to the base 210, the base 210 is rotated by a certain angle until the socket 220 is accommodated in the engaging groove 211, and at this time, the socket 220 is clamped by the elastic clamping jaws 213 of the engaging groove 211. Then, the supporting rod 230 is forced to rotate around the axis of the hinge pin 231 until the supporting rod 230 is received in the locking groove 212, and at this time, the supporting rod 230 is held by the elastic jaws 213 of the locking groove 212 and can be stably kept unfolded. Subsequently, the curtain 100 is coupled to the support rods 230, and the curtain 100 is assembled to the projection curtain frame 10;

during collection, the projection screen frame 10 is to be changed from the extended state to the retracted state. As shown in fig. 3 instead of fig. 2, the curtain 100 is first detached; then, the supporting rods 230 are rotated to be bundled and close to the main frame rod 310; then, the base 210 is rotated to separate the sleeve-joint piece 220 from the clamping groove 211, and the support rod 230 is parallel to the main frame rod 310; finally, the tripod 320 is retracted, and thus the projection screen frame 10 is retracted, as shown in fig. 4.

It should be noted that, when the projection screen frame 10 of the present invention is recycled, the whole size of the frame can be reduced by folding the frame without disassembling the components, so that the frame is convenient to transport and carry. Moreover, since the components do not need to be disassembled, the projection screen frame 10 does not need to be assembled in a complicated process, and can be unfolded by simply rotating the frame, so that the support device 200 and the foot stand device 300 can be rapidly and conveniently assembled. Meanwhile, the situation that the projection screen frame cannot be normally used due to the fact that parts are easy to omit after being decomposed is avoided.

In order to further reduce the overall size of the conveniently assembled projection screen frame 10 in the contracted state, the main frame bar 310 may adopt a telescopic structure. As shown in fig. 5, in this embodiment, the main frame rod 310 includes a lifting rod 311 and a fixing rod 312, the fixing rod 312 is sleeved on the lifting rod 311, an elastic adjusting member 313 is disposed at a connection position between the lifting rod 311 and the fixing rod 312, and the elastic adjusting member 313 controls the lifting rod 311 to slide up and down relatively. When the telescopic lifting rod 310 is used, the clamping degree between the lifting rod 311 and the fixed rod 312 can be adjusted by rotating the tightness adjusting part 313, so that whether the lifting rod 311 can do telescopic movement relative to the fixed rod 312 is controlled, and the length of the main frame rod 310 is further changed. As such, the projection screen frame 10, which can be conveniently assembled, can be adjusted in height when in an expanded state, or reduced in size when in a contracted state.

In order to better improve the convenience of the projection screen frame 10 during the assembling process and to enable the screen 100 to be connected with the end of the supporting rod 220 more conveniently and quickly, the projection screen frame 10 convenient for assembling is specially designed:

in this embodiment, as shown in fig. 6, the curtain 100 is provided with a frame 110, the frame 110 is disposed on two opposite sides of the curtain 100, the frame 110 is provided with an insertion hole 111, the end of the support rod 230 is provided with a connecting member 232, and the connecting member 232 is provided with a hooking portion 233 engaged with the insertion hole 111. When assembling, the hook 233 of the connecting member 232 is inserted into the insertion hole 111, and the supporting rod 230 in the expanded state can completely unfold the curtain 100.

In one embodiment, as shown in fig. 6, the frame 110 is preferably a hollow structure for reducing the overall weight of the curtain 100; and the end of the frame 110 is provided with an end cover 112, and the end cover 112 can play a role in preventing water and dust.

In the actual use process, since the sizes of the curtain 100 and the support bar 230 are fixed, in the assembly process, after the frame 110 on one side of the curtain 100 is connected to the support bar 230, the position of the inserting hole 111 of the frame 110 on the other side is just different from the position of the hooking portion 233, and at this time, the frame 110 is difficult to be connected to the support bar 230. In daily life, it is common practice to apply an interaction force to the curtain 100 and the support bar 230 to deform the curtain 100 and the support bar, so that the hooking portion 233 is inserted into the insertion hole 111. However, this method is time consuming and labor intensive, and also tends to cause the support bar 230 to break. To this end, the projection screen frame 10 of the present invention, which is easy to assemble, is further improved upon this problem. Specifically, the method comprises the following steps:

in this embodiment, as shown in fig. 7, a return spring 234 and a guide sleeve 235 are disposed at an end of the supporting rod 230, the return spring 234 is disposed between the supporting rod 230 and the connecting member 232, the guide sleeve 235 is sleeved on the end of the supporting rod 230, the return spring 234 and the connecting member 232, and the guide sleeve 235 performs sliding guiding and limiting functions on the connecting member 232.

When the connection is difficult, the operator can press the connecting member 232 to overcome the elastic force of the return spring 234 and contract toward the direction close to the supporting rod 230, so that the position of the connecting member 232 changes, and the inserting hole 111 on the frame 110 can be easily sleeved on the hooking portion 233. After the connection is completed, the pressure on the connecting members 232 is removed, the return springs 234 return under the action of elastic force, the connecting members 232 extend out toward the direction away from the supporting rods 230, so that the supporting rods 230 can still completely unfold the curtain 100, and moreover, because the elastic force exists between the supporting rods 230 and the frames 110, the forces applied to the frames 110 at the two sides of the curtain 100 are mutually balanced, so that wrinkles are not easy to appear on the curtain 100.

In summary, the projection screen frame 10 of the present invention can be assembled quickly and conveniently when in use, so as to save the assembling time.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a projection curtain cloth holder of convenient equipment which characterized in that includes: the curtain comprises a curtain, a supporting device and a foot rest device, wherein the supporting device is arranged on the foot rest device, and the curtain is arranged on the supporting device;

2. The conveniently assembled projection screen frame according to claim 1, wherein the base is provided with a locking groove matched with the sleeve member, and the base is provided with a locking groove matched with the support rod.

3. The conveniently assembled projection screen frame according to claim 2, wherein the walls of the engaging groove and the locking groove are provided with elastic clamping jaws, and the elastic clamping jaws press the sleeve-connection member or the support rod.

4. The conveniently assembled projection screen frame of claim 1, wherein the screen is provided with a frame, the frame is provided with insertion holes, the end of the support rod is provided with a connecting piece, and the connecting piece is provided with a hooking part matched with the insertion holes.

5. The conveniently assembled projection screen frame of claim 4, wherein the bezel is a hollow structure with end caps at the ends of the bezel.

6. The conveniently assembled projection screen frame according to claim 4, wherein the end of the support rod is provided with a return spring and a guide sleeve, the return spring is arranged between the support rod and the connecting piece, the guide sleeve is sleeved on the end of the support rod, the return spring and the connecting piece, and the guide sleeve is used for guiding and limiting the connecting piece.

7. The conveniently assembled projection screen frame of claim 1, wherein the foot rest arrangement comprises a main frame bar and a tripod disposed on the main frame bar, the socket being mounted to an end of the main frame bar.

8. The conveniently assembled projection screen frame as claimed in claim 7, wherein the main frame rod comprises a lifting rod and a fixing rod, the fixing rod is sleeved on the lifting rod, a tightness adjusting piece is arranged at the joint of the lifting rod and the fixing rod, and the tightness adjusting piece controls the lifting rod to slide up and down relatively.