CN114355718A - Portable 3D image imaging device - Google Patents

Abstract

The invention discloses a portable 3D image imaging device, comprising a first projection component, a second projection component, a third projection component and a fourth projection component; the first projection component, the second projection component, the third projection component and the The fourth projection components are connected telescopically in sequence; when the projection surface of the first projection component, the projection surface of the second projection component, the projection surface of the third projection component and the projection surface of the fourth projection component are unfolded, the first projection surface The projection component, the second projection component, the third projection component and the fourth projection component form a top-bottom interconnected cube. The invention makes the 3D holographic image scene easy to assemble and store, and has high portability.

Description

A portable 3D image imaging device

This case is a divisional application based on an invention patent with an application date of September 25, 2020, an application number of 2020110203239, and the title of "a 3D holographic image device" as the parent case.

technical field

The present invention relates to the technical field of 3D images, in particular to a portable 3D image imaging device.

Background technique

In order to realize holographic images, a deep-field projection studio is usually composed of a curtain, multiple light sources, etc. at present. The existing deep-field projection environment usually requires a lot of manpower and material resources to build, and the projection booth is inconvenient to transport. Every time it is applied to a different scene, it needs to be rebuilt, which is inefficient.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a portable 3D image imaging device to improve the portability of the projection booth.

In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

A portable 3D image imaging device, comprising a first projection assembly, a second projection assembly, a third projection assembly and a fourth projection assembly;

The first projection assembly, the second projection assembly, the third projection assembly and the fourth projection assembly are telescopically connected in sequence;

When the projection surface of the first projection component, the projection surface of the second projection component, the projection surface of the third projection component and the projection surface of the fourth projection component are unfolded, the first projection component, the second projection component, the The three projection components and the fourth projection component form a top-bottom interconnected cube.

The beneficial effects of the present invention are: four retractable projection assemblies are provided, which are convenient for storage; when projection is required, the projection surfaces of the four projection assemblies are expanded in turn to form a cube, so that the projector can be performed on the four surfaces respectively. projection. In the present invention, a portable deep-field projection device is formed by four retractable projection assemblies, which is convenient for storage and carrying while ensuring the projection effect.

Description of drawings

1 is a schematic structural diagram of a portable 3D image imaging device in a fully unfolded state according to Embodiment 1 of the present invention;

FIG. 2 is a top view of a portable 3D image imaging device in a fully stored state according to the first embodiment of the present invention;

3 is a top view of a portable 3D image imaging device in a fully unfolded state according to Embodiment 1 of the present invention;

Fig. 4 is the front view of Fig. 1;

5 is a cross-sectional view of the reel in a restricted state according to Embodiment 2 of the present invention;

Fig. 6 is the enlarged view of A part among Fig. 5;

7 is a cross-sectional view of the second embodiment of the present invention when the rolling body is a steel ball and the reel is in a rotatable state;

FIG. 8 is an enlarged view of part B of FIG. 7;

9 is a cross-sectional view of the second embodiment of the present invention when the rolling body is a ball bearing and the reel is in a rotatable state;

FIG. 10 is an enlarged view of part C in FIG. 9 .

Label description:

1. The first projection assembly; 11. The projection surface of the first projection assembly; 12, The first curtain; 13, The first winder; 131, The casing; 1312, control lever; 1313, accommodating groove; 1314, circular truncated protrusion; 134, upper support table; 1341, limit groove; 135, lower support table; 1351, chute; 1352, switch groove; 136, rotating shaft; 137 , the first anti-skid part; 138, the second anti-skid part; 139, the rolling body;

2. The second projection assembly; 21. The projection surface of the second projection assembly;

3. The third projection component; 31. The projection surface of the third projection component; 32. The flexible scale;

4. A fourth projection assembly; 41. A projection surface of the fourth projection assembly.

Detailed ways

In order to describe in detail the technical content, achieved objects and effects of the present invention, the following descriptions are given with reference to the embodiments and the accompanying drawings.

1-10, a portable 3D image imaging device includes a first projection assembly, a second projection assembly, a third projection assembly and a fourth projection assembly;

The first projection assembly, the second projection assembly, the third projection assembly and the fourth projection assembly are telescopically connected in sequence;

When the projection surface of the first projection component, the projection surface of the second projection component, the projection surface of the third projection component and the projection surface of the fourth projection component are unfolded, the first projection component, the second projection component, the The three projection components and the fourth projection component form a top-bottom interconnected cube.

The working principle of the present invention is:

The deep-field projection scene is built by four retractable projection components, so that the deep-field projection scene can be stored and easy to carry.

As can be seen from the above description, the beneficial effects of the present invention are: four retractable projection assemblies are provided for easy storage; when projection is required, the projection surfaces of the four projection assemblies are sequentially expanded to form a cube, so that the projector can be Projection on four sides. In the present invention, a portable deep-field projection device is formed by four retractable projection assemblies, which is convenient for storage and carrying while ensuring the projection effect.

Further, the projection surface of the first projection component is a black opaque curtain, and the projection surface of the third projection component is a transparent mesh curtain.

As can be seen from the above description, the projection surface of the first projection component is a black opaque curtain, and the projection surface of the third projection component is a transparent mesh curtain, which can realize a holographic image in one direction.

Further, the projection surface of the first projection component, the projection surface of the second projection component, the projection surface of the third projection component and the projection surface of the fourth projection component are all transparent mesh screens, and the first projection component The top of the projection surface of the second projection component, the top of the projection surface of the third projection component, and the top of the projection surface of the fourth projection component are all provided with lighting components.

It can be seen from the above description that the four projection surfaces are all transparent mesh screens, and the tops of the four projection surfaces are all provided with lighting components, which can simultaneously project from four directions, so that the holographic image has a better three-dimensional effect and optimizes the visual effect.

Further, the first projection assembly includes a first screen and a first winder;

One end of the first screen is connected to the fixed end of the fourth projection assembly, and the other end of the first screen can be received in the first winder by winding.

As can be seen from the above description, a first winder is provided for winding and storing the first curtain, so as to realize the storage of the first projection assembly.

Further, the first winder includes a housing, a reel and a sliding assembly;

the reel is connected with the first curtain through a clockwork spring;

The upper and lower ends in the casing are respectively provided with an upper support table and a lower support table;

Both ends of the reel are respectively rotatably inserted into the shaft centers of the upper support table and the lower support table through a rotating shaft;

When the reel is pressed against the second anti-slip portion on the top of the lower support table through the first anti-slip portion, the reel is limited;

A longitudinally arranged chute is provided at the axial center of one side of the lower support platform facing the upper support platform;

The control end of the sliding assembly is disposed outside the casing, and the sliding end of the sliding assembly is longitudinally slidably embedded in the chute;

A side of the sliding end of the sliding assembly facing the rotating shaft has rolling bodies for smooth rotation of the reel.

It can be seen from the above description that the reel is connected to the first curtain through a spring, so that the reel has a traction force on the curtain to realize the automatic retraction of the first curtain; When the first anti-skid part is separated from the second anti-skid part, the reel can rotate smoothly with the assistance of the rolling element, so that the first curtain can be unfolded or wound for storage; when the first anti-skid part and the second anti-skid part are separated When in contact, the reel is limited to prevent the first curtain from retracting after being pulled apart, and can be used to adjust the unwinding length of the first curtain.

Further, the sliding assembly includes a sliding block and a control rod;

There are a plurality of the rolling bodies, and the plurality of the rolling bodies are evenly distributed on the sliding body around the axis of the sliding body;

The side wall of the chute is provided with a horizontally arranged switch slot;

One end of the control rod is located outside the casing, and the other end is connected to the sliding block through the switch slot;

There is a first distance between the rolling body and the bottom of the rotating shaft in the Z-axis direction;

There is a second distance between the control rod and the side wall of the switch slot in the Z-axis direction;

The first distance is less than or equal to the second distance.

It can be seen from the above description that the position of the sliding block in the Z-axis direction can be controlled more conveniently through the control rod, so that the sliding block can be pressed against the rotating shaft, driving the reel to move up, greatly reducing the frictional force of the rotating shaft, thereby making the The telescopic distance of the first curtain can be adjusted.

Further, the rolling bodies are steel balls.

It can be seen from the above description that the rolling elements are steel balls, which can reduce the frictional force during the rotation of the shaft.

Further, the rolling body is a ball bearing;

The rotating shaft can be inserted into the rolling body, and the height of the rotating shaft in the Z-axis direction is smaller than the height of the rolling body in the Z-axis direction.

It can be seen from the above description that the provision of the ball bearing greatly reduces the frictional force during the rotation of the shaft.

Further, a limit slot is provided on one side of the upper support platform toward the lower support platform;

The rotating shaft on the top of the reel is rotatably inserted into the limiting groove, and a spring is provided on the rotating shaft and the limiting groove in the Z-axis direction.

As can be seen from the above description, a spring is provided to push the reel to move downward after the external force is removed, so as to keep the reel in a static state.

It is worth noting that the direction indicated by the arrow in FIG. 1 is the moving direction of each projection surface during the storage process.

Example 1

1-4, a portable 3D image imaging device includes a first projection assembly 1, a second projection assembly 2, a third projection assembly 3 and a fourth projection assembly 4; the first projection assembly 1, the second projection assembly 2. The third projection assembly 3 and the fourth projection assembly 4 are telescopically connected in turn; when the projection surface 11 of the first projection assembly, the projection surface 21 of the second projection assembly, the projection surface 31 of the third projection assembly and the fourth projection assembly When the projection surface 41 of the first projection assembly is unfolded, the first projection assembly 1, the second projection assembly 2, the third projection assembly 3 and the fourth projection assembly 4 form a top-down interconnected cube; the top of the projection surface 11 of the first projection assembly is also provided with a lighting assembly , the projection surface 31 of the third projection component is a transparent curtain. Specifically, when it needs to be stored, the first projection assembly 1 , the second projection assembly 2 , the third projection assembly 3 and the fourth projection assembly 4 are retracted sequentially in a clockwise direction. In this embodiment, in order to realize 3D holographic projection, a projector is placed outside the portable 3D image imaging device, and there is a distance between the projector and the projected surface, and the projection direction of the projector should face the projection of the third projection component. face 31. Optionally, the projection surface 11 of the first projection component is a black opaque curtain, and the projection surface 31 of the third projection component is a transparent mesh curtain. In order to improve the overall stability, a base 5 can be added at the bottom of each projection assembly, and each projection assembly is inserted into the corresponding base 5 .

Embodiment 2

1-10, the first projection assembly 1 includes a first curtain 12 and a first winder 13; one end of the first curtain 12 is connected to the fixed end of the fourth projection assembly 4, and the other end of the first curtain 12 can It is accommodated in the first winder 13 by winding.

5, the first winder 13 includes a housing 131, a reel 132 and a sliding assembly 133; the reel 132 is connected with the first curtain 12 through a spring; the upper and lower ends of the housing 131 are respectively provided with an upper support table 134 and the lower support table 135; the two ends of the reel 132 are respectively rotatably inserted into the shaft centers of the upper support table 134 and the lower support table 135 through a rotating shaft 136; When the second anti-skid portion 138 on the top of the support table 135 is used, the reel 132 is limited; the axial center of one side of the lower support table 135 facing the upper support table 134 is provided with a longitudinally arranged chute 1351; the control end of the sliding assembly 133 is provided with Outside the housing 131 , the sliding end of the sliding component 133 is longitudinally slidably embedded in the chute 1351 ; the sliding end of the sliding component 133 facing the rotating shaft 136 has a rolling body 139 for smooth rotation of the reel 132 . A limiting groove 1341 is defined on the side of the upper support table 134 facing the lower support table 135 . The outer diameter of the rotating shaft 136 in the chute 1351 matches the inner diameter of the chute 1351 , and the outer diameter of the rotating shaft 136 in the limiting slot 1341 matches the inner diameter of the limiting slot 1341 . Preferably, the first anti-slip portion 137 and the second anti-slip portion 138 are rubber gaskets, the first anti-slip portion 137 is adhered to the bottom of the rotating shaft and the second anti-slip portion 138 is adhered to the top of the lower support platform 135; the rotating shaft 136 and the reel 132 One piece.

Specifically, in order to be able to adjust the distance between the projection surface 11 of the first projection component and the projection surface 31 of the third projection component, the bottom of the projection surface 21 of the second projection component and the bottom of the projection surface 41 of the fourth projection component are provided with flexible The ruler 32 is used to know the length of the projection surface, so that the projection surface 21 of the second projection component and the projection surface 41 of the fourth projection component can maintain the same projection length, so as to ensure that the projection surface 11 of the first projection component is the same as the projection surface 11 of the first projection component. The projection surfaces 31 of the three projection assemblies are in a state of being parallel to each other.

5-10, the sliding assembly 133 includes a sliding block 1311 and a control rod 1312; there are multiple rolling bodies 139, and the multiple rolling bodies 139 are evenly distributed around the axis of the sliding body and are arranged on the sliding body; the side of the chute 1351 The wall is provided with a horizontally arranged switch slot 1352; one end of the control rod 1312 is located outside the casing 131, and the other end is connected to the sliding block 1311 through the switch slot 1352; The first distance a; the second distance b between the control rod 1312 and the side wall of the switch slot 1352 in the Z-axis direction; the first distance a is less than or equal to the second distance b. Preferably, the sliding block 1311 and the control rod 1312 are integrally formed. Optionally, the rolling elements 139 are steel balls or ball bearings. When the rolling elements 139 are steel balls, the surface of the sliding block 1311 is provided with a plurality of accommodating grooves 1313 arranged around the axis of the sliding body. , and the bottom of the accommodating groove 1313 is provided with a truncated cone-shaped protrusion 1314, and the axis of the protrusion and the center of the ball are located on the same line in the Z-axis direction. The contact area of the accommodating groove 1313 can reduce the frictional force between the rotating shaft 136 and the rolling elements 139 . Preferably, a compression spring can also be installed at the bottom of the sliding block 1311 to provide a supporting force for the sliding block 1311 to move upward, but when the sliding block 1311 is pressed on the top of the compression spring, the first distance should be greater than 0. When the rolling element 139 is a ball bearing, the rotating shaft 136 can be inserted into the inner ring of the rolling element 139, the bottom of the rolling shaft 132 is pressed against the outer ring of the rolling element 139, and the height of the rotating shaft 136 in the Z-axis direction is smaller than that of the rolling element in Z The height in the axial direction, and the outer ring of the rolling element 139 is welded or bonded to the sliding block 1311 .

Specifically, between the screen of the first projection assembly 1 and the casing 131 of the fourth projection assembly 4 , between the screen of the second projection assembly 2 and the casing 131 of the first projection assembly 1 , and the screen of the third projection assembly 3 Adhesive connection is adopted between it and the casing 131 of the second projection assembly 2 and between the curtain of the fourth projection assembly 4 and the casing 131 of the third projection assembly 3 .

The structures of the second projection assembly 2 , the third projection assembly 3 and the fourth projection assembly 4 are the same as those of the first projection assembly 1 , and will not be repeated here.

Embodiment 3

The difference between this embodiment and the second embodiment is that four sides can be projected at the same time.

Preferably, the projection surface 11 of the first projection component, the projection surface 21 of the second projection component, the projection surface 31 of the third projection component and the projection surface 41 of the fourth projection component are all transparent mesh screens, and the first projection component The top of the projection surface 11 of the second projection component, the top of the projection surface 21 of the second projection component, the top of the projection surface 31 of the third projection component, and the top of the projection surface 41 of the fourth projection component are all provided with lighting components. Specifically, in this embodiment, projectors are arranged on the outside of the four projection surfaces to realize simultaneous projection from four directions, so that the 3D holographic image has a better imaging effect. For the specific setting method, refer to the projector in the first embodiment. set up.

Embodiment 4

The difference between this embodiment and the second embodiment is that a spring is also provided.

The rotating shaft 136 on the top of the reel 132 is rotatably inserted into the limiting groove 1341 , and the rotating shaft 136 and the limiting groove 1341 are provided with springs in the Z-axis direction, that is, the springs are located in the Z-axis direction between the rotating shaft 136 and the limiting groove 1341 between. Preferably, the spring is a compression spring.

To sum up, the present invention provides a portable 3D image imaging device, which is provided with four retractable projection components, which can be extended and retracted in four directions in turn; through the control rod, the reel can be rotated and stationary. Switching in the middle can adjust the distance between the two oppositely set projection surfaces to meet the user's requirements for the depth of the scene. The invention can realize the quick assembly and disassembly of the holographic image scene, and has high portability.

The above descriptions are only examples of the present invention, and are not intended to limit the scope of the present invention. Any equivalent transformations made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in related technical fields, are similarly included in the within the scope of patent protection of the present invention.

Claims (7)

1. A portable 3D image imaging device is characterized by comprising a first projection assembly, a second projection assembly, a third projection assembly and a fourth projection assembly;

the first projection assembly, the second projection assembly, the third projection assembly and the fourth projection assembly are sequentially connected in a telescopic manner;

portable 3D imaging device the portable 3D imaging device.

2. The portable 3D imaging device as claimed in claim 1, wherein the first projection assembly comprises a first curtain and a first winder;

one end of the first curtain is connected with the fixed end of the fourth projection assembly, and the other end of the first curtain can be accommodated in the first winder through winding.

3. The portable 3D imaging device according to claim 2, wherein the first winder includes a housing, a reel and a sliding assembly;

the scroll is connected with the first screen cloth through a clockwork spring;

an upper supporting table and a lower supporting table are respectively arranged at the upper end and the lower end in the shell;

two ends of the scroll are rotatably inserted in the axes of the upper supporting table and the lower supporting table through a rotating shaft respectively;

when the scroll is pressed against the second anti-skid part on the top of the lower support table through the first anti-skid part, the scroll is limited;

a sliding groove arranged along the longitudinal direction is formed in the axis of one side of the lower supporting platform, which faces the upper supporting platform;

the control end of the sliding assembly is arranged outside the shell, and the sliding end of the sliding assembly is longitudinally embedded in the sliding groove in a sliding manner;

the sliding end of the sliding component is provided with a rolling body for enabling the reel to rotate smoothly at one side facing the rotating shaft.

4. A portable 3D imaging device according to claim 3, wherein the sliding assembly comprises a sliding block and a control rod;

the rolling bodies are arranged on the sliding block in a uniformly distributed manner around the axis of the sliding block;

a horizontally arranged switch slot is formed in the side wall of the sliding slot;

one end of the control rod is positioned outside the shell, and the other end of the control rod penetrates through the switch groove to be connected with the sliding block;

the rolling body has a first distance with the bottom of the rotating shaft in the Z-axis direction;

the control rod has a second distance with the side wall of the switch slot in the Z-axis direction;

the first distance is less than or equal to the second distance.

5. The portable 3D imaging device according to claim 3 or 4, wherein the rolling elements are steel balls.

6. The portable 3D imaging device as claimed in claim 3, wherein the rolling element is a ball bearing;

the rotating shaft can be inserted into the rolling body, and the height of the rotating shaft in the Z-axis direction is smaller than that of the rolling body in the Z-axis direction.

7. The portable 3D imaging device according to claim 3, wherein a limiting groove is formed on one side of the upper supporting platform facing the lower supporting platform;

the rotating shaft at the top of the scroll is rotatably inserted into the limiting groove, and the rotating shaft and the limiting groove are provided with springs in the Z-axis direction.

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