WO2023185695A1

WO2023185695A1 - Extendable/retractable platform and laser projection system

Info

Publication number: WO2023185695A1
Application number: PCT/CN2023/083866
Authority: WO
Inventors: 万秀龙; 杨长明; 钟强
Original assignee: 青岛海信激光显示股份有限公司
Priority date: 2022-03-31
Filing date: 2023-03-24
Publication date: 2023-10-05

Abstract

An extendable/retractable platform (000), comprising: a fixing bracket (100), a bearing box (200), a first driving assembly (300), a sliding assembly (400), and a translation assembly (500). The fixing bracket (100) in the extendable/retractable platform (000) is used for fixing to a target plane, and the translation assembly (500) is used for bearing a laser projection main unit (002). When driven by the first driving assembly (300), the translation assembly (500) can automatically slide along a direction perpendicular to the target plane. A laser projection system (001) comprises the extendable/retractable platform (000) and the laser projection main unit (002) located on the extendable/retractable platform (000). The translation assembly (500) can conveniently adjust the position of the laser projection main unit (002) in the direction perpendicular to the target plane to cause the laser projection main unit (002) to adapt to corresponding transmittance, so that the size of a projection picture projected by the laser projection main unit (002) can match the size of a projection screen (003) fixed on a wall.

Description

Telescopic platform and laser projection system

This application claims priority to the Chinese patent application with the application number 202210332889.8 and the invention name "Telescopic Platform and Laser TV" submitted on March 31, 2022, and claims the application number 202222469256 submitted on September 16, 2022. . ” of the Chinese patent application, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of projection display technology, and in particular to a telescopic platform and laser projection system.

Background technique

With the continuous development of science and technology, laser projection systems are increasingly used in consumers' work and life. At present, laser projection systems mainly include laser projection hosts and projection screens. Among them, the light outlet of the laser projection host faces the projection screen to emit a light beam to the projection screen, and the projection screen is used to receive the light beam to display the picture. Here, the projection screen can usually be hung on the wall, and a cabinet used to support the laser projection host can usually be placed next to the wall.

The throw ratio of the laser projection host refers to: when the size of the image projected by the laser projection host on the projection screen matches the size of the projection screen, the vertical distance between the light outlet of the laser projection host and the projection screen, and the width of the projection screen ratio.

However, the current projection of the laser projection host is relatively large, and the distance between the cabinet and the wall is usually small. Therefore, the vertical distance between the light outlet of the laser projection host placed on the cabinet and the projection screen may not meet the requirements. The throw ratio of this laser projection host causes the image projected by the laser projection host to be less effective. For this reason, the distance between the cabinet and the wall is usually increased to adjust the position of the laser projection host relative to the projection screen to ensure that the laser projection host on the cabinet can adapt to the corresponding projection ratio. However, this method of adjusting the position of the laser projection host is more complicated and less effective.

Contents of the invention

This application provides a telescopic platform and laser projection system. The technical solutions are as follows:

On the one hand, a scaling platform is provided, including:

Fixed bracket, the fixed bracket is used to be fixed on the target plane;

A carrying box fixedly connected to the fixed bracket;

A first driving component and at least two sliding components located in the carrier box, the first driving component is located between the two sliding components, and the first driving component is fixedly connected to one of the sliding components;

Translation components, the translation components are fixedly connected to the two sliding components respectively, and the translation components are used to carry the laser projection host;

Wherein, the first driving component is configured to drive the translation component to move in a direction perpendicular to the target plane through the two sliding components.

On the other hand, a laser projection system is provided, including: a laser projection host and the above-mentioned telescopic platform; the laser projection host is located on a translation component in the telescopic platform.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic diagram of the overall structure of a telescopic platform provided by an embodiment of the present application;

Figure 2 is an exploded view of the telescopic platform shown in Figure 1;

Figure 3 is a schematic diagram of the cooperation between a fixed bracket and a carrying box provided by an embodiment of the present application;

Figure 4 is a schematic diagram of a sliding assembly and a first driving assembly provided by an embodiment of the present application;

Figure 5 is a schematic diagram of the connection relationship between a synchronization component and a nut provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of a synchronization component provided by an embodiment of the present application;

Figure 7 is a schematic structural diagram of a translation assembly provided by an embodiment of the present application;

Figure 8 is a schematic diagram of the connection relationship between a translation component and a sliding component provided by an embodiment of the present application;

Figure 9 is a schematic structural diagram of another telescopic platform provided by an embodiment of the present application;

Figure 10 is a schematic diagram of the telescopic platform in the embodiment of the present application when it is in a retracted state;

Figure 11 is a schematic diagram of a telescopic platform provided by an embodiment of the present application when it is in an extended state;

Figure 12 is a schematic structural diagram of yet another telescopic platform provided by an embodiment of the present application;

Figure 13 is a schematic diagram of the connection relationship between a second driving component and a translation component provided by an embodiment of the present application;

Figure 14 is a schematic structural diagram of a second driving component provided by an embodiment of the present application;

Figure 15 is a schematic diagram of the cooperation between a transmission component and a position sensor provided by an embodiment of the present application;

Figure 16 is a schematic structural diagram of yet another telescopic platform provided by this application;

Figure 17 is an exploded view of the telescopic platform shown in Figure 16;

Figure 18 is a schematic diagram of the connection relationship between a first limiting member and a carrying box provided by an embodiment of the present application;

Figure 19 is a schematic diagram of the connection relationship between another first limiting member and the carrying box provided by the embodiment of the present application;

Figure 20 is a schematic diagram of the telescopic platform shown in Figure 17 when it is in a retracted state;

Figure 21 is a schematic diagram of the telescopic platform shown in Figure 17 when it is in an extended state;

Figure 22 is a schematic structural diagram of a positioning member provided by an embodiment of the present application;

Figure 23 is a schematic structural diagram of yet another telescopic platform provided by an embodiment of the present application;

Figure 24 is an exploded view of the telescopic platform shown in Figure 23;

Figure 25 is a schematic diagram of the connection relationship between a positioning member, a second slide rail and a translation component provided by an embodiment of the present application;

Figure 26 is a schematic structural diagram of a laser projection system provided by an embodiment of the present application;

Figure 27 is a schematic diagram of a telescopic platform carrying a laser projection host provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Please refer to Figure 1, which is a schematic diagram of the overall structure of a telescopic platform provided by an embodiment of the present application. The telescopic platform 000 may include: a fixed bracket 100 and a carrying box 200 .

The fixed bracket 100 in the telescopic platform 000 is used to be fixed on the target plane. In this way, the telescopic platform 000 can be fixed on the target plane through the fixing bracket 100 . Here, the target plane can be the side where the wall is located, or it can be the side of the cabinet facing the wall and parallel to the wall. For example, when the target plane is the side of the wall, the telescopic platform 000 can be fixed on the wall through the fixing bracket 100; when the target plane is the side of the cabinet facing the wall and parallel to the wall, the telescopic platform 000 can be placed on the cabinet. , and can be fixed on the cabinet through the fixing bracket 100.

The carrier box 200 in the telescopic platform 000 can be fixedly connected to the fixed bracket 100. In order to see the structure of the telescopic platform 000 more clearly, please refer to Figures 1 and 2. Figure 2 is an exploded view of the telescopic platform shown in Figure 1. The telescopic platform 000 may also include: a first driving component 300, at least two sliding components 400 and a translation component 500.

The first driving assembly 300 and at least two sliding assemblies 400 in the telescopic platform 000 may be located within the carrying box 200 . The two sliding components 400 may be respectively distributed on both sides of the carrying box 200, and the extending direction of the sliding components 400 may be perpendicular to the target plane. The first driving component 300 may be located between the two sliding components 400 and distributed on one side of the carrier 200. At the same time, the first driving component 300 may be fixedly connected to one sliding component 400. Example, first driver component 300 may be fixedly connected with the sliding assembly 400 closer to the first driving assembly 300 of the two sliding assemblies 400 . Here, the first driving component 300 can drive the sliding component 400 to slide in the carrier box 200, and the sliding direction of the sliding component 400 can be perpendicular to the target plane.

The translation component 500 in the telescopic platform 000 can be fixedly connected to the two sliding components 400 respectively, and the translation component 500 can be used to carry the laser projection host. The first driving component 300 may be configured to drive the translation component 500 to move in a direction perpendicular to the target plane through the two sliding components 400 . Here, the first driving component 300 can drive the sliding component 400 to slide in the carrier box 200 , and the translation component can be fixedly connected to the sliding component 400 . Therefore, the first driving component 300 can drive the translation component 500 to move in a direction perpendicular to the target plane by driving the sliding component 400 to slide within the carrier box 200 . In addition, when the translation component 500 is fixedly connected to the two sliding components 400 , the translation component 500 can be stably slid relative to the carrying box 200 .

In this application, driven by the first driving component 300, the translation component 300 can automatically slide in a direction perpendicular to the target plane. In this way, when the laser projection host carried by the translation component 300 can be moved more conveniently perpendicular to the target plane. The position of the laser projection host can be adjusted in the direction of the plane, thereby allowing the laser projection host to adapt to the corresponding transmittance, so that the size of the projection screen projected by the laser projection host can match the size of the projection screen fixed on the wall. . Moreover, when the translation assembly 300 carries different types of laser projection hosts, the first driving assembly 300 can control the translation assembly 300 to slide different distances on the fixed bracket 100 to ensure that various types of laser projection hosts can be adapted. Their respective transmittances ensure that the projection images projected by these laser projection hosts have better effects.

It should be noted that in the related art, the driving component is usually arranged in the central area of the carrier box 200 and is connected to the sliding components 400 on both sides at the same time. When both sides of the driving component receive uniform force, the driving component can easily Movement occurs under the action of this force. In this case, after the translation component 500 moves in the direction away from the target plane, if the translation component 500 receives a force in the direction toward the target plane, this force will be transmitted to the sliding components 400 on both sides of the carrying box 200, and The sliding component 400 is evenly transmitted to the driving component, causing the driving component to move in the direction toward the target plane and driving the sliding components 400 on both sides to move in the direction toward the target plane, which in turn drives the translation component 500 to move in the direction toward the target plane. As a result, the translation assembly 500 cannot be stably placed at a position where the size of the projection image projected by the laser projection host can match the size of the projection screen fixed on the wall. In order to prevent the translation assembly 500 from moving due to the external force of the telescopic platform 000, the related technology often requires the driving assembly to run for a long time to ensure that the driving assembly can resist the force from the sliding assembly 400. However, this will cause The power consumption of the driving components is relatively large, which in turn results in a shorter service life of the driving components.

In this application, since the first driving component 300 can be fixedly connected to only one sliding component 400, when the translation component 500 is subjected to an external force, the force can only be transmitted to one sliding component 400. In this case Under this situation, only one side of the first driving component 300 will receive the force from the sliding component 400, and the force from the outside that the first driving component 300 receives is uneven. In this way, the position of the first driving component 300 can be ensured. The probability of change under the action of external force is low, and the first driving component 300 can exert sufficient resistance to the sliding component 400 so that the sliding component 400 remains in its original position, thereby ensuring that the translation component 500 can be placed in a position that can be used. The size of the projection image projected by the laser projection host can match the size of the projection screen fixed on the wall.

Moreover, since the first driving component 300 can be fixedly connected to the sliding component 400 of the two sliding components 400 that is closer to the first driving component 300, the distance between the first driving component 300 and the other sliding component 400 is larger. , so that the space in the carrier box 200 can be fully utilized, so that there is sufficient space in the carrier box 200 to place devices related to the telescopic platform or the laser projection host. For example, the remaining space in the carrier box 200 can be used to place the telescopic platform 000 or The circuit required for the laser projection host to work.

To sum up, this application provides a telescopic platform, including: a fixed bracket, a carrying box, a first driving component, a sliding component and a translation component. The fixed bracket in the telescopic platform is used to fix on the target plane, and the translation component is used to carry the laser projection host. Driven by the first driving component, the translation component can automatically slide in a direction perpendicular to the target plane. In this way, when the laser projection host carried by the translation component can more conveniently realize laser projection in a direction perpendicular to the target plane. The position of the host can be adjusted to allow the laser projection host to adapt to the corresponding transmittance, making the laser projection The size of the projection screen projected by the host can match the size of the projection screen fixed on the wall. Moreover, when the translation component carries different types of laser projection hosts, the first driving component can be used to control the translation component to slide different distances on the fixed bracket to ensure that various types of laser projection hosts can adapt to their respective transmittances. , thereby ensuring that the projection images projected by these laser projection hosts have better effects.

In the embodiment of the present application, please refer to FIG. 3 , which is a schematic diagram of the cooperation between a fixed bracket and a carrying box provided in an embodiment of the present application. The fixed bracket 100 in the telescopic platform 000 may include: a vertically distributed first sub-bracket 101 and a second sub-bracket 102. The first sub-bracket 101 may be used to be fixed on a target plane, and one end of the second sub-bracket 102 may be connected to the first sub-bracket 102. One sub-bracket 101 is fixedly connected, and the second sub-bracket 102 can be fixedly connected to the carrier box 200. For example, the side of the second sub-bracket 102 close to the carrier box 200 can be fixedly connected to the carrier box 200. In this way, through the cooperation of the first bracket and the second sub-bracket 102, the fixed bracket 100 can stably support the carrying box 200.

Here, the number of the fixing brackets 100 may be multiple. The plurality of first sub-brackets 101 in the plurality of fixing brackets 100 may be used to be fixed on the target plane. The plurality of second sub-brackets 102 in the plurality of fixing brackets 100 may be used. One end can be fixedly connected to the first sub-bracket 101, and the second sub-bracket 102 can be fixedly connected to the carrying box 200. In this way, the carrying box 200 can be more firmly connected to the fixed bracket 100, thereby avoiding the undesirable situation that the position of the carrying box 200 is displaced during the movement of the translation assembly 500.

In the embodiment of the present application, in order to more clearly see the cooperative relationship between the sliding component 400 and the first driving component 300, please refer to Figure 4. Figure 4 shows a sliding component and the first driving component provided in the embodiment of the present application. Fitting diagram. Each sliding assembly 400 may include: a guide rod 401 and at least one sliding member 402. For example, each sliding assembly 400 may include two sliding members 402. At least one sliding member 402 can be sleeved on the guide rod 401 and slidably connected with the guide rod 401 . Here, the first driving assembly 300 may be fixedly connected to the sliding member 402 in one sliding assembly 400, and the sliding member 402 may be fixedly connected to the translation assembly 500. In this way, the first driving assembly 300 can drive the sliding member 402 to move along the length direction of the guide rod 401, so that the sliding member 402 can drive the translation assembly 500 to move along the length direction of the guide rod 401. And when the translation assembly 500 is fixedly connected to the two sliding members 402, the translation assembly 500 can slide relative to the carrying box 200 more stably.

For example, the length direction of the guide rod 401 may be perpendicular to the target direction. In this way, when the first driving assembly 300 drives the sliding member 402 to move along the length direction of the guide rod 401, the sliding member 402 can drive the translation assembly 500 to slide in a direction perpendicular to the target plane. In this way, by arranging the sliding member 402 and the guide rod 401 that cooperate with each other, the translation assembly 500 can be made to slide in a direction perpendicular to the target plane more stably. And when the number of the sliding members 402 is greater than or equal to two, the sliding members 402 can better support the translation assembly 500 , thereby driving the translation assembly 500 to move along the length direction of the guide rod 401 in a more stable manner.

In the embodiment of the present application, please refer to FIG. 4 , the first driving assembly 300 may include: a first driving motor 301 fixed in the carrying box 200 , a transmission shaft 302 connected to the first driving motor 301 , and a transmission shaft 302 connected to the transmission shaft 302 . The first drive motor 301 can be used to drive the movable connected transmission member 303 to slide along the transmission shaft 302 , and the transmission member 303 can be fixedly connected to the sliding member 402 in a sliding assembly 400 . In this way, the first driving assembly 300 can drive the transmission member 303 to move, so that the belt sliding member 402 moves along the length direction of the guide rod 401 .

For example, the length direction of the transmission shaft 302 may be parallel to the length direction of the guide rod 401, and both may be perpendicular to the target plane. To this end, when the transmission member 303 slides along the transmission shaft 302, the transmission member 303 can drive the sliding member 402 to slide along the length direction of the guide rod 401, so that the sliding member 402 can drive the translation assembly 500 in a direction perpendicular to the target plane. slide. Here, since the synchronizing member 302 in the first driving assembly 300 needs to pass the transmission member 303 to drive the sliding assembly 402 to slide along the length direction of the guide rod 401, when the translation assembly 500 receives an external force, this force needs to It can be transmitted to the transmission member 303 through the synchronizing member 302, and then transmitted to the rotating shaft 302 through the transmission member 303. In this way, it can be ensured that the force transmission path of the external force transmitted to the rotating shaft 302 is longer, and thus it can be ensured that the loss when the external acting force is transmitted to the rotating shaft 302 is large, that is, the force acting on the rotating shaft 302 The force is small, thereby ensuring that the probability of rotation of the rotation axis 302 due to external force is low, so that the sliding member 402 can be stably maintained in the original position, thereby ensuring that the translation assembly 500 can be placed at a position that enables laser projection. host site A location where the size of the projected image can match the size of the projection screen fixed to the wall.

It should be noted that the transmission shaft 302 and the transmission member 303 in the first driving assembly 300 have many possible ways of mating. This application schematically illustrates a possible implementation manner. For example, the transmission shaft 302 may be a screw rod. For example, the transmission shaft 302 may be a ball screw or a trapezoidal screw rod. The transmission member 303 may include a nut 303a and a synchronization member 303b. For example, the synchronizing piece 303b can be fixedly connected to the nut 303a, and the synchronizing piece 303b can also be fixedly connected to the slider. In this way, the sliding member 402 and the nut 303a can be fixedly connected together through the synchronizing member 303b. Here, since the trapezoidal screw requires greater driving force to drive the nut 303a to rotate, when the transmission shaft 302 is a trapezoidal screw, the probability of the transmission shaft 302 rotating due to external force can be further reduced.

In order to more clearly see the connection relationship between the synchronization component 303b and the nut 303a, please refer to FIG. 5 , which is a schematic diagram of the connection relationship between the synchronization component and the nut provided by an embodiment of the present application. The synchronization component 303b may include a first sub-synchronization component 303b1 and a second sub-synchronization component 303b2 that are perpendicular to each other, and the first sub-synchronization component 303b1 may be fixedly connected to the second sub-synchronization component 303b2. Among them, the first sub-synchronous component 303b1 can be connected with the nut 303a, and can move synchronously along the transmission shaft 302 with the nut 303a. Here, in order to avoid the undesirable situation that the first sub-synchronizer 303b1 contacts the transmission shaft 302 during the movement of the nut 303a, causing the nut 303a to be resisted, the first sub-synchronizer 303b1 can be connected to the nut 303a in a socket manner. The second sub-synchronization component 303b2 can be fixedly connected to the sliding component 402. During the movement of the first sub-synchronizing component 303b1 and the nut 303a, the second sub-synchronizing component 303b2 can drive the sliding component 402 to slide along the length direction of the guide rod 401.

In order to more clearly see the connection relationship between the first sub-synchronization component 303b1 and the second sub-synchronization component 303b2, please refer to Figure 6, which is a schematic structural diagram of a synchronization component provided by an embodiment of the present application. In the embodiment of the present application, the first sub-synchronizer 303b1 may have a first surface 303b11 and a second surface 303b12 that are bent and perpendicular to each other. The first surface 303b11 can be sleeved on the transmission shaft 302 and connected with the nut 303a. Coaxially arranged, the second surface 303b12 may be perpendicular to the second sub-synchronizer 303b2.

Optionally, the second sub-synchronization member 302b2 may be disposed on a side of the driving assembly 300 close to the sliding assembly 400, and the second sub-synchronization member 302b2 may be perpendicular to the support plate 501, and the second sub-synchronization member 302b2 may be in contact with the first sub-synchronization member. The second side 303b12 of 303b1 is fixedly connected. Here, the second sub-synchronization component 302b2 can also be disposed on the side of the sliding component 402 close to the support plate 501. At this time, the second surface 303b12 of the first sub-synchronization component 303b1 can be disposed close to the support plate 501. The second sub-synchronization component 302b2 Fixedly connected to the second surface 303b12 of the first sub-synchronizer 303b1. It can be seen from the above that the second sub-synchronous component 302b2 can have multiple positions, which is not limited in this application.

In the embodiment of the present application, please refer to Figures 4 and 5. In order to ensure that the laser projection host can be stably placed on the support plate 501 during the sliding process of the slider 402, the individual sliders 402 in each slide assembly 400 are The number is multiple. At this time, in order to maintain the consistency of the movements of the multiple sliding members 402 and the transmission member 303 on the same sliding assembly 400, the synchronizing member 3303b may also include a third sub-synchronizing member 303b3, and the third sub-synchronizing member 303b3 may be used to connect the same sliding member. A plurality of sliding parts 402 on the assembly 400, and the third sub-synchronization part 303b3 may be fixedly connected with at least one of the first sub-synchronization part 303b1h and the second sub-synchronization part 302b2. In this way, the third sub-synchronizing member 303b3 can not only connect multiple sliding members 402 in the same sliding assembly 400, but also ensure that the multiple sliding members 402 can move synchronously with the transmission member 303, thereby enabling the telescopic platform 000 to be more flexible. Move steadily in a direction perpendicular to the target plane.

In the embodiment of the present application, please refer to Figures 7 and 8. Figure 7 is a schematic structural diagram of a translation assembly provided by an embodiment of the present application. Figure 8 is a connection relationship between a translation assembly and a sliding assembly provided by an embodiment of the present application. schematic diagram. The translation assembly 500 may include: a support plate 501 and two guide rail members 502 fixedly connected to both sides of the support plate 501. The two guide rail members 502 may be respectively fixedly connected to the sliding members 402 in the two sliding assemblies 400. The support plate 501 may Used to carry the laser projection host. In this way, through the two guide rail members 502, the sliding member 402 can be more stably connected to the translation assembly 500, and when the sliding member 402 moves on the guide member, the sliding member 402 can more stably drive the translation assembly 500 along the vertical direction. The direction of the target plane movement.

For example, the two guide rail members 502 may be located on a side of the support plate 501 away from the laser projection host, and the extension direction of the two guide rail members 502 may be perpendicular to the target plane. In this way, the two guide rail members 502 can be fixed to the sides of the sliding member 402 connection, so that the guide rail member 502 can cover the sliding member 402, thereby making the connection position between the guide rail member 502 and the sliding member 402 more concealed, making the telescopic platform 000 more aesthetically pleasing.

In the embodiment of this application, there are many possible implementation methods when the translation component 500 carries the laser projection host:

In a possible implementation, please refer to Figures 7 and 8, the translation assembly 500 can include a support plate 501, and the laser projection host can be directly fixed on the support plate 501 in the translation assembly 500;

In another possible implementation manner, please refer to FIG. 9 , which is a schematic structural diagram of another telescopic platform provided by an embodiment of the present application. The translation assembly 500 in the telescopic platform 000 may also include: at least one bracket 503 detachably connected to the support plate 501. The bracket 503 may be located on the side of the support plate 501 away from the carrying box 200. The extension direction of the bracket 503 may be parallel to the target plane. , in the extension direction of the bracket 503, the length of the bracket 503 may be greater than the width of the support plate 501, and at least one bracket 503 may be used to carry the laser projection host. In this way, when the laser projection host is large in size, the operator can fix the laser projection host on the support plate 501 , so that the laser projection host can be stably placed on the translation assembly 500 . Here, since the bracket 503 can be detachably connected to the support plate 501, when the telescopic platform 000 needs to carry different types of laser projection hosts, the support plate 501 only needs to be replaced or removed as needed, so that the telescopic platform 000 can Carrying different types of laser projection hosts, the user needs to replace the telescopic platform 000 when replacing the laser projection host, thereby reducing the user's cost of replacing the laser projection host and improving the user experience.

In the embodiment of the present application, the telescopic platform 000 can have two states: an extended state and a retracted state, as shown in Figures 9 and 10. Figure 10 is a schematic diagram of the telescopic platform in the embodiment of the present application when it is in the retracted state. . Before the laser projection host is turned on, the operator can drive the support plate 501 to move to the side away from the target plane through the first driving assembly 300, so that the telescopic platform 000 is in an extended state, so as to ensure that when the laser projection host projects images to the projection screen, The size of the picture projected by the laser projection host matches the size of the projection screen. After the laser projection host is turned off, the operator can use the first driving assembly 300 to drive the support plate 501 to move toward the side close to the target plane until the support plate 501 reaches the position before the laser projection host is turned on. At this time, the telescopic platform 000 is in a retracted state, so that the telescopic platform 000 occupies a smaller space.

When the telescopic platform 000 is in the extended state, the side of the carrying box 200 close to the target plane will be exposed, resulting in poor aesthetics of the telescopic platform 000 . Therefore, it is necessary to set up relevant structures in the telescopic platform 000 to block the side of the carrying box 200 close to the target platform to ensure that the telescopic platform 000 has good aesthetics.

In a possible implementation, please refer to FIGS. 8 and 9 . The telescopic platform 000 may also include: a cover plate 600 fixedly connected to the carrier box 200 . The cover plate 600 may be arranged in parallel with the support plate 501 , and the cover plate 600 may be arranged parallel to the support plate 501 . 600 may be closer to the target plane relative to the support plate 501 . In this application, in the direction perpendicular to the target plane, the sum of the width of the cover plate 600 and the maximum distance of the translation assembly 500 sliding in the direction perpendicular to the target plane is less than or equal to the direction of the carrier box 200 perpendicular to the target plane. the width of one side. In this way, it can be ensured that when the translation assembly 500 slides in the direction perpendicular to the target plane, the first driving assembly 300 fixed in the carrying box 200 will not be exposed from the telescopic platform 000, thereby ensuring the aesthetics of the telescopic platform 000. better.

For example, as shown in FIG. 8 , the carrier box 200 may have a support member 201 , and the cover plate 600 may be fixedly connected to the carrier box 200 through the support member 201 , so as to ensure that during the movement of the translation assembly 500 in the telescopic platform 000 , the position of the cover 600 can remain unchanged. Here, the width of the cover plate 600 in the direction parallel to the target plane may be less than or equal to the distance between the two guide rail members 502 in the support plate 501. In this way, the occurrence of the guide rail member 502 in the direction perpendicular to the target plane can be avoided. An undesirable situation in which the cover 600 collides with it during movement.

It should be noted that the cover plate 600 in the telescopic platform 000 can have multiple types: for example, the cover plate 600 can be a flat cover plate, or the cover plate 600 can be a bent cover plate. When the cover plate 600 is a bent cover plate, 600, the side of the cover plate 600 close to the target plane may have a bent portion, and the bent portion of the cover plate 600 may be an arc-shaped bend. There may be a bent portion on one side facing the target plane. In this way, the transition between the cover 600 and the target plane can be made smoother, and the side of the carrying box 200 close to the target plane can be blocked, thereby further improving the aesthetics of the telescopic platform 000 .

In another possible implementation, please refer to Figure 11. Figure 11 is a telescopic flat screen provided by an embodiment of the present application. Schematic diagram of the platform in the extended state. The telescopic platform 000 may also include a telescopic dust cover 700 . One end of the dust cover 700 can be fixedly connected to an end of the carrier box 200 close to the target plane, and the other end can be fixedly connected to a section of the support plate 501 close to the target plane.

Here, when the telescopic platform 000 is in an extended state, the dustproof cover 700 may be in a stretched state, and when the telescopic platform 000 is in a retracted state, the dustproof cover 700 may be in a compressed state.

For example, the width of the dust cover 700 is greater than or equal to the width of the carrying box 200, and the length of the dust cover 700 after being stretched is greater than or equal to the telescopic platform 000. After the telescopic platform 000 is in the extended state, the carrying box 200 is close to the target plane. The distance between one side and the target plane. In this way, when the telescopic platform 000 is in the extended state, the dust-proof cover 700 can block the structure in the carrier box 200 to prevent dust in the external environment from entering the carrier box 200. . At the same time, the dustproof cover 700 can also prevent the components in the carrying box 200 from being directly exposed to the external environment, thereby effectively improving the aesthetics of the telescopic platform 000.

It should be noted that during the use of the laser projection host, in order to obtain better projection effects, the user needs to adjust the distance between the laser projection host and the support plate 501 and the light emission angle of the laser projection host.

In a possible implementation, please refer to FIG. 11 . The telescopic platform 000 may also include: multiple casters 800 connected to the translation assembly 500 . The multiple casters 800 may be used with the side of the laser projection host close to the translation assembly 500 connect. In this way, by being connected to the casters 800, the translation assembly 500 can carry the laser projection host more stably. And since the laser projection host can be connected to the support plate 501 through the casters 800, the user can adjust the distance between the laser projection host and the support plate 501 and the light emission angle of the laser projection host by adjusting the connection relationship between the casters 800 and the laser projection host. Adjustment.

For example, the caster 800 may have a foot pad 801 and an adjusting part 802, wherein the caster 800 may be connected to the support plate 501 through the foot pad 801, and the caster 800 may be connected to the laser projection host through the adjusting part 802. Here, the side of the laser projection host close to the caster 800 may have a threaded hole, and the adjusting part 802 may be a threaded rod with external threads. The user can connect the adjusting part 802 of the caster 800 to the laser projection host through thread engagement. In this way, the user can adjust the degree of engagement between the adjustment portion 802 and the threaded hole of the laser projection host, so that the laser projection host can move in a direction parallel to the target plane, thereby adjusting the distance between the laser projection host and the support plate 501 and the laser Adjust the light emission angle of the projection host.

Here, when the translation assembly 500 includes the bracket 503, the caster 800 can also be placed on the bracket 503. Among them, the placement of the caster 800 on the bracket 503 can be implemented in a variety of possible ways:

When the number of brackets 503 is one, the support plate 501 can be a flat plate, and the casters 800 can be connected to the side of the support plate 501 close to the laser projection host.

When the number of brackets 503 is two, the support plates 501 may be distributed in a direction perpendicular to the target plane, and the two sets of casters 800 distributed in a direction perpendicular to the target plane may be located on one support plate 501 respectively. In this way, the bracket 503 can be firmly connected to the casters 800, thereby ensuring that the support plate 501 can better carry the laser projection host through the bracket 503.

When the translation assembly 500 includes a bracket 503, as shown in Figures 9 and 10, the casters 800 can be directly connected to the laser projection host, and the operator can place the laser projection host with the casters 800 on the bracket 503 as needed. . In this case, the bracket 503 may have a protruding structure 503a around it, and the protruding structure 503a may be located on the side of the bracket 503 facing the laser projection host. In this way, through the protruding structure 503a, the bracket 503 can limit the position of the projection host, thereby preventing the laser projection host from falling from the bracket 503 during the movement of the support plate 501.

Here, in order to ensure that the caster 800 can be placed more stably on the bracket 503, the bracket 503 can have a connecting hole that matches the shape of the caster 800, and the caster 800 can be placed in the connecting hole on the bracket 503. In this way, through the connecting hole, The bracket 503 can constrain the position of the caster 800 more stably. Since the provision of through holes on the support plate 501 will affect the support strength of the bracket 503, when a connection hole is provided on the bracket 503, in order to ensure that the bracket 503 can stably support the laser projection host, it is necessary to ensure that a thicker bracket is used 503.

In another possible implementation, as shown in Figure 12, Figure 12 is another telescopic platform provided by an embodiment of the present application. Schematic diagram of the structure of the platform. The telescopic platform 000 may also include: a second drive assembly 900 . In order to more clearly introduce the cooperation method between the second driving assembly 900 and the telescopic platform 000, the following embodiment is schematically described using the telescopic platform 000 without the bracket 503.

In order to more clearly see the structural form of the second driving component 900 and the position of the second driving component 900 in the telescopic platform 000, please refer to Figure 13. Figure 13 is a second driving component and a second driving component provided by an embodiment of the present application. Schematic diagram of the connection relationship of translation components. The second driving assembly 900 in the telescopic platform 000 may include: a second driving motor 901 fixed on the translation assembly 500, and a connecting rod 902 connected to the second driving motor 901. The connecting rod 902 is used for translation close to the laser projection host. One side of the assembly 500 is connected, and the second driving motor 901 is configured to drive the connecting rod 902 to move in a direction parallel to the target plane.

Here, since the connecting rod 902 is connected to the side of the laser projection host close to the translation assembly 500, when the second driving motor 901 in the second driving assembly 900 drives the connecting rod 902 to move in a direction parallel to the target plane, the connecting rod 902 902 can drive the laser projection host to move in a direction parallel to the target plane. In this way, driven by the second driving component 900, the laser projection host carried by the translation component 500 can automatically move in a direction parallel to the target plane. In this way, laser projection can be more conveniently realized in a direction parallel to the target plane. The position of the host is adjusted, so that the distance between the laser projection host and the support plate 501 and the light emission angle of the laser projection host can be adjusted, so that the picture projected by the laser projection host can more easily match the projection screen fixed on the wall. Further improve the display effect of the projection screen projected by the laser projection host.

In the embodiment of the present application, please refer to FIG. 13 , the support plate 501 in the translation assembly 500 may have a through hole 500b, the second driving electrode 901 may be fixed at the through hole 500b, and the second driving motor 901 may be located on the support plate 501 The side close to the carrying box 200. In this way, after the second driving motor 901 is fixed in the carrying box, the second driving motor 901 will not be exposed outside the telescopic platform 000, thereby effectively ensuring the aesthetics of the telescopic platform 000. For example, the support plate 501 also has a first fastening hole D1, and the second drive motor 901 has a second fastening hole D2 connected with the first fastening hole D1. Fasteners such as bolts can be used to pass through the first fastening hole D1 in turn. Fastening holes D1 and second fastening holes D2 to fix the second driving motor 901 on the support plate 501 .

A part of the connecting rod 902 in the second driving assembly 900 can pass through the through hole 500b to be connected to the second driving motor 901, and the other part protrudes from the supporting plate 501. When the translation assembly 500 carries the laser projection host, the portion of the connecting rod 902 protruding from the support plate 501 can be connected to the side of the laser projection host close to the support plate 501 . For example, the portion of the connecting rod 902 protruding from the support plate 501 may have external threads. The side of the laser projection host close to the support plate 501 has a threaded hole that matches the external thread. In this way, the part of the connecting rod 902 protruding from the support plate 501 can be threadedly connected to the side of the laser projection host close to the support plate 501 .

In this embodiment of the present application, please refer to FIG. 14 , which is a schematic structural diagram of a second driving component provided by an embodiment of the present application. In the second driving assembly 900, the portion of the connecting rod 902 passing through the through hole 500b may be fixedly connected to the output shaft 901a of the second driving motor 901. Here, the length direction of the output shaft 901a of the second drive motor 901 may be parallel to the length direction of the connecting rod 902.

In this case, the second driving motor 901 may be a telescopic motor, and the output shaft 901a of the second driving motor 901 can telescope in a direction parallel to the target plane. In this way, when the part of the connecting rod 902 passing through the through hole 500b is fixedly connected to the output shaft 901a of the second driving motor 901, the connecting rod 902 can be driven by the output shaft 901a of the second driving motor 901 to move parallel to the target. Move in the direction of the plane, so that the laser projection host connected to the connecting rod 902 can also move in the direction parallel to the target plane.

For example, the portion of the connecting rod 902 that passes through the through hole 500b has a recessed structure, and at least part of the output shaft 901a of the second drive motor 901 can be located within this recessed structure. In this way, it can be ensured that the connecting rod 902 can be more stably connected to the output shaft 901a of the second driving motor 901. Here, there are many ways to fix the connection between the part of the connecting rod 902 that passes through the through hole 500b and the output shaft 901a of the second drive motor 901. This application takes the following two implementation methods as examples to illustrate:

In the first implementation, first, glue (for example, cyanoacrylic acid Methyl ester); After that, at least part of the output shaft 901a of the second drive motor 901 can be placed in this recessed structure, and a certain pressing force can be applied. After the glue in the recessed structure solidifies, it can be ensured that the connecting rod 902 and the output shaft 901a of the second drive motor 901 are fixedly connected together.

In the second implementation, as shown in Figure 14, a threaded hole A1 can be provided on the side wall of the output shaft 901a of the second drive motor 901, and a recess can be provided on the part of the connecting rod 902 that passes through the through hole 500b. Structurally connected connection through hole A2. In this way, after at least part of the output shaft 901a of the second drive motor 901 is placed in the recessed structure and the threaded hole A1 is connected to the connecting through hole A2, a screw can be used to pass through the connecting through hole A2 and connect with the threaded hole. The connecting rod 902 and the output shaft 901a of the second driving motor 901 are fixedly connected together through the A1 threaded connection.

It should be noted that before connecting the rod 902 to the output shaft 901a of the second drive motor 901, the connecting rod 902 needs to be screwed into the threaded hole provided in the laser projection host to ensure that the connecting rod 902 can be connected to the laser projection host. . After that, the connecting rod 902 can be passed through the through hole 500b of the translation assembly 500, and the connecting rod 902 can be fixedly connected to the output shaft 901a of the second drive motor 901 through the through hole 500b.

In the embodiment of the present application, as shown in FIGS. 13 and 14 , the side of the laser projection host close to the translation assembly 500 may have multiple threaded holes, that is, the number of threaded holes may be multiple. The telescopic platform 000 may include a plurality of second driving assemblies 900. A plurality of connecting rods 902 in the plurality of second driving assemblies 900 correspond to a plurality of threaded holes of the laser projection host, and each connecting rod 902 is used to connect to a corresponding Threaded hole for threaded connection. For example, the translation component 500 in the telescopic platform 000 may have multiple through holes 500b. When the laser projection host is placed on the translation component 500, the multiple through holes 500b may be connected to the multiple threaded holes in one-to-one correspondence, and multiple The through hole 500b may also correspond to the plurality of second connecting rods 902 in the plurality of second driving assemblies 900. In this way, each second connecting rod 902 can pass through the corresponding through hole 500b and be threadedly connected to the corresponding threaded hole.

Among them, the plurality of second drive motors 901 in the plurality of second drive assemblies 900 are configured to drive multiple connecting rods 902 to move synchronously to adjust the distance between the laser projection host and the support plate 501, or to drive multiple connecting rods 902 to move synchronously. The connecting rods 902 move asynchronously to adjust the light emission angle of the laser projection host. In this way, the image projected by the laser projection host can more easily match the projection screen fixed on the wall.

In a possible implementation, the number of second driving assemblies 900 in the telescopic platform 000 is four, and the four connecting rods 902 in the four second driving assemblies 900 can be connected to the base of the laser projection host respectively. The four corners are connected. Here, the shape of the base of the laser projection host may be a rectangular shape. In this way, when it is necessary to adjust the distance between the laser projection host and the support plate 501 of the translation assembly 500, the four second drive motors 901 in the four second drive assemblies 900 need to drive the four connecting rods 902 to move synchronously, so that Each position of the laser projection host can be synchronously moved in a direction perpendicular to the support plate 501 , so that the distance between the laser projection host and the support plate 501 can be adjusted.

When it is necessary to adjust the light emission angle of the laser projection host, the four second drive motors 901 in the four second drive assemblies 900 need to drive the four connecting rods 902 to move asynchronously, so that the laser projection host at different positions is vertical to the support plate. The direction of movement of 501 is different, thereby enabling the light emission angle of the laser projection host to be adjusted. For example, through the asynchronous movement of the four connecting rods 902, the pitch angle of the light emission direction of the laser projection host can be adjusted. For example, the two second drive motors 901 close to the wall among the four second drive motors 901 can drive the corresponding two connecting rods 902 to move synchronously, and the other two second drive motors 901 can drive the corresponding two connections at the same time. The rod 902 moves synchronously, and when the distance that the two second drive motors 901 drive the connecting rod 902 close to the wall is different from the distance that the other two second drive motors 901 drive the connecting rod 902 to move, laser projection can be realized. The pitch angle of the main unit’s light emission direction is adjusted.

It should be noted that each connecting rod 902 in this application needs to be threadedly connected to the laser projection host. Therefore, during the non-synchronous movement of multiple connecting rods 902, it is necessary to ensure that the distance difference between any two connecting rods 902 is less than or equal to 10 mm, so as to ensure that during the non-synchronous movement of multiple connecting rods 902, multiple connecting rods 902 move non-synchronously. The connecting rod 902 will not cause damage to the laser projection host.

In the embodiment of the present application, as shown in Figure 8, the telescopic platform 000 may also include: a control component 1000 fixed in the carrying box 200. The control component 1000 is communicatively connected to the first driving motor 301 and the second driving motor 901 respectively. For example, the control component 1000 may be electrically connected to the first driving motor 301 and the second driving motor 901 through connecting wires. so, The operation of the first drive motor 301 and the second drive motor 901 can be respectively controlled through the control component 1000, and the position of the laser projection host carried by the translation component 500 can be adjusted.

In this application, as shown in Figure 8, the telescopic platform 000 may also include: a position sensor 1100 located in the carrying box 200. The position sensor 1100 may be electrically connected to the control component 1000. The control component 1000 may be configured to: through the position sensor 1100 detects the position information of the translation component 500 and controls the working state of the first driving motor 301. In this way, the undesirable situation of excessive extension or excessive retraction of the telescopic platform 000 can be avoided.

For example, when the control component 1000 detects that the translation component 500 is in the extreme position through the position sensor 1100, that is, when the translation component 500 is in the maximum extended position or the minimum retracted position, the first driving motor 301 can be controlled to stop working, so that Translation assembly 500 remains in a maximum extended position or a minimum retracted position. Here, the position sensor 1100 is a photoelectric sensor. In this case, the number of position sensors 1100 may be multiple, and at least two position sensors 1100 of the plurality of position sensors 1100 may be located in the carrying box 200 and respectively correspond to the maximum extension position and the minimum contraction of the translation assembly 500 location correspondence. Here, the minimum retracted position may be the initial position where the telescopic platform 000 extends, the maximum extended position may be the maximum extended position of the telescopic platform 000, and the at least two position sensors 1100 may be the first position sensor 1101 and the initial position corresponding to the initial position. A second position sensor 1102 corresponding to the maximum extension position.

In the embodiment of the present application, please refer to FIG. 8 and FIG. 15 . FIG. 15 is a schematic diagram of the cooperation between a transmission member and a position sensor provided by an embodiment of the present application. In order to ensure that the position sensor 1100 can stably receive the position information of the translation assembly 500 during the movement of the translation assembly 500, the transmission member 303 in the first driving assembly 300 can have a trigger portion 303c, and the trigger portion 303c of the transmission member 303 can be located at The transmission member 303 is on the side facing away from the sliding member 402 .

When the translation assembly 500 slides to the maximum extended position of the telescopic platform 000, the triggering part 303c of the transmission member 303 can block and trigger the second position sensor 1102, and the control assembly 1000 can control the first drive motor 301 to stop working, so that the translation assembly 500 Stop moving. At this time, the telescopic platform 000 is in the maximum extended position. In this way, the undesirable situation of excessive extension of the translation component 500 and damage to the telescopic platform 000 can be avoided;

When the translation component 500 slides to the initial position of the telescopic platform 000, the trigger part 303c of the transmission member 303 can block and trigger the first position sensor 1101, and the control component 1000 can control the first drive motor 301 to stop working, so that the translation component 500 stops moving. , at this time the telescopic platform 000 is in the initial position. In this way, it can be ensured that the support plate 501 can be located at a position that can block the side of the carrying box 200 away from the target plane, thereby improving the aesthetics of the telescopic platform 000 .

It should be noted that the control component 1000 can also be communicatively connected with the laser projection host, and the control component 1000 can record the position of the translation component 500 when the laser projection host is operating normally. In this way, when the user turns on the laser projection host, the control component 1000 can control the translation component 500 in the telescopic platform 000 to move to the last position where the projection screen projected by the laser projection host can display a better display effect; when the user turns off the laser projection host , the control component 1000 can control the translation component 500 to move to the initial position.

In the embodiment of the present application, as shown in FIG. 8 , the telescopic platform 000 may also include: a prompt panel 1200 fixedly connected to the side of the carrying box 200 facing away from the target plane. The prompt panel 1200 is electrically connected to the control component 1000 . The prompt panel 1200 can be configured to prompt fault information when the scaling platform 000 fails, or to display the current location information of the scaling platform 000 in real time, or to display customized information for a long time if there is no fault information when the scaling platform 000 is running. interface.

For example, the prompt panel 1200 may have a display screen. Since the control component 1000 may be electrically connected to the prompt panel 1200, the control panel may send the current location information of the telescopic platform 000 to the prompt panel 1200, and the prompt panel 1200 may send the telescopic platform 000 to the prompt panel 1200. The current location information is shown on the display. Here, the control component 1000 can be electrically connected to the prompt panel 1200 through data transmission.

It should be noted that the telescopic platform 000 may also include a foreign object sensor. The foreign object sensor may be located in the carrying box 200 and connected to the transmission member 303 in the first drive assembly 300. When the transmission member 303 drives the translation assembly 500 to move, the foreign object sensor The sensor can detect whether there is a foreign object on the moving route of the translation assembly 500. If the foreign object is detected, the foreign object sensor can transmit relevant information to the control panel. The control panel can control the telescopic platform 000 to stop moving and send out a prompt message through the prompt panel 1200.

To sum up, this application provides a telescopic platform, including: a fixed bracket, a carrying box, a first driving component, a sliding component and a translation component. The fixed bracket in the telescopic platform is used to fix on the target plane, and the translation component is used to carry the laser projection host. Driven by the first driving component, the translation component can automatically slide in a direction perpendicular to the target plane. In this way, when the laser projection host carried by the translation component can more conveniently realize laser projection in a direction perpendicular to the target plane. The position of the host is adjusted so that the laser projection host can adapt to the corresponding transmittance, so that the size of the projection image projected by the laser projection host can match the size of the projection screen fixed on the wall. Moreover, when the translation component carries different types of laser projection hosts, the first driving component can be used to control the translation component to slide different distances on the fixed bracket to ensure that various types of laser projection hosts can adapt to their respective transmittances. , thereby ensuring that the projection images projected by these laser projection hosts have better effects.

The above embodiments are all described with the case that the telescopic platform 000 can automatically adjust the distance between the laser projection host and the target plane in the direction perpendicular to the target plane through the first driving component 300. In other possible implementations, , the user can also manually adjust the distance between the laser projection host and the target plane in the direction perpendicular to the target plane.

Please refer to Figures 16 and 17. Figure 16 is a schematic structural diagram of yet another telescopic platform provided by the present application, and Figure 17 is an exploded view of the telescopic platform shown in Figure 16. The telescopic platform 000 may also include: a first limiting component 1300 and a positioning component 1400 .

The first limiter 1300 in the telescopic platform 000 is located in the carrier box 200 , and the position of the first limiter 1300 in the sliding direction X of the translation assembly 500 relative to the carrier box 200 can be adjusted.

The positioning member 1400 in the telescopic platform 000 is connected to the translation assembly 500 and can slide synchronously with the translation assembly 500. The positioning member 1400 is located on the side of the first limiting member 1300 away from the translation assembly 500.

The positioning member 1400 in the telescopic platform 000 may be configured to contact the first limiting member 1300 after the translation assembly 500 moves in a direction away from the target plane.

Here, after the positioning member 1400 contacts the first limiting member 1300, the positioning member 1400 will receive resistance from the first limiting member 1300 and cannot continue to move in a direction away from the target plane. Because the positioning member 1400 and the translation assembly 500 move synchronously. Therefore, after the positioning member 1400 contacts the first limiting member 1300, the translation assembly 500 cannot continue to move in a direction away from the target plane.

And because the position of the first limiting member 1300 in the sliding direction X of the translation assembly 500 relative to the carrying box 200 can be adjusted. Therefore, after the laser projection host carried by the translation assembly 500 is moved, the position of the first limiting member 1300 in the sliding direction After the translation component 500 moves in a direction away from the target plane and the positioning member 1400 contacts the first limiting member 1300, the vertical distance between the laser projection host and the projection screen can adapt to the throw ratio of the laser projection host to ensure The size of the projection screen projected by the laser projection host can match the size of the projection screen fixed on the wall.

Moreover, when the translation assembly 500 carries laser projection hosts with different throw ratios, the maximum sliding distance of the translation assembly 500 in the direction perpendicular to the target plane can be adjusted by adjusting the position of the first limiting member 1300 to ensure that the translation assembly 500 After moving in the direction away from the target plane and the positioning member 1400 contacting the first limiting member 1300, the vertical distance between the laser projection host and the projection screen of various throw ratios can be adapted to their respective transmittances, and thus It is guaranteed that the telescopic platform 000 in this application can carry laser projection hosts with different throw ratios.

In this application, please refer to FIG. 18 , which is a schematic diagram of the connection relationship between a first limiting member and a carrying box provided by an embodiment of this application. The first limiting member 1300 can move along the sliding direction X of the translation assembly 500 relative to the carrying box 200 . Here, the moving direction of the first limiting member 1300 is perpendicular to the target plane.

In this case, the telescopic platform 000 may further include: a fastener 1500 connected to the first limiting member 1300 in the carrying box 200, and the fastener 1500 in the telescopic platform 000 may be configured to: at the first limit Before the positioning member 1300 moves in the carrying box 200, cancel the fastening connection between the first limiting member 1300 and the carrying box 200; after the first limiting member 1300 moves in the carrying box 200, remove the first limiting member 1300 from the carrying box 200. The position piece 1300 is fixed in the carrying box 200 .

In this way, when it is necessary to replace the laser projection host carried on the translation assembly 500 with a laser projection host of other throw ratios At this time, the operator can manipulate the fastener 1500 so that the fastener 1500 no longer fastens the first limiting member 1300 in the carrying box 200 to cancel the fastening between the first limiting member 1300 and the carrying box 200 connected so that the first limiting member 1300 can move in the direction perpendicular to the target plane within the carrying box 200 . After moving the first limiter 1300 in the carrier box 200 to a position corresponding to the throw ratio of the laser projection host to be replaced, the operator can manipulate the fastener 1500 so that the fastener 1500 can move the first limiter 1300 to a position corresponding to the throw ratio of the laser projection host to be replaced. The position piece 1300 is fastened inside the carrying box 200 . In this way, after the translation component 500 and the positioning component 1400 in the telescopic platform 000 slide synchronously in the direction away from the target plane, the first limiting component 1300 can stably block the positioning component 1400 to ensure that the translation component 500 will not continue. Slide away from the target plane. At this time, if the support plate 501 of the translation assembly 500 carries the laser projection host to be replaced, the laser projection host is at the farthest position from the target plane, and between the laser projection host to be replaced and the projection screen at this position The vertical distance can meet the transmittance of the laser projection host to be replaced.

Here, after the fastener 1500 cancels the fastening connection between the first limiting member 1300 and the carrying box 200, the first limiting member 1300 can move in the direction perpendicular to the target plane in the carrying box 200. Therefore, by moving the first limiter 1300 in the carrying box 200, the first limiter 1300 can better cooperate with laser projection hosts with different transmittances to ensure that the translation assembly 500 carries a certain throw ratio. Before installing the laser projection host, the first limiting member 1300 can be quickly moved to a position corresponding to the transmittance by moving in a direction perpendicular to the target plane.

In this embodiment of the present application, as shown in FIG. 18 , the first limiting member 1300 may include: a limiting member body 1301 and a sliding protrusion 1302 fixedly connected to the limiting member body 1301 . Here, the limiting member body 1301 in the first limiting member 1300 can block the positioning member 1400. The fastener 1500 can cooperate with the limiting protrusion 302 in the first limiting member 1300 to fix the first limiting member 1300 in the carrying box 200 after the position of the first limiting member 1300 is determined.

For example, as shown in FIG. 18 , the carrier box 200 may have a slide groove S that cooperates with the sliding protrusion 1302 , and the length direction of the slide groove S may be parallel to the sliding direction X of the translation assembly 500 relative to the carrier box 200 . The sliding protrusion 1302 can pass through the chute S and extend out of the chute S. The fastener 1500 is configured to: before the sliding protrusion 1302 moves in the chute S, move in a direction away from the sliding protrusion 1302; after the sliding protrusion 1302 moves in the chute S, move toward the sliding protrusion 1302. direction of movement.

Here, the part of the sliding protrusion 1302 that protrudes out of the chute S may have external threads, the fastener 1500 may be a nut threadedly connected to the sliding protrusion 1302, and the size of the fastener 1500 is larger than the width of the chute S. . In this way, after the sliding protrusion 1302 passes through the chute S and extends out of the chute S, and the fastener 1500 is threadedly connected to the part that extends out of the chute S, if the fastener 1500 is screwed in until the fastener 1500 is tightened, the fastener 1500 can apply a pressing force to the load-bearing box 200 to ensure that the fastener 1500 and one side of the load-bearing box 200 can be in close contact with each other. At the same time, the limiting member body 1301 of the first limiting member 1300 and the other side of the carrying box 200 can be closely connected. In this way, it can be ensured that the fastener 1500 can fix the first limiting member 1300 to the carrying box 200 Inside.

If the fastener 1500 moves in a direction away from the sliding protrusion 1302 by unscrewing until the fastener 1500 is loosened, the fastener 1500 no longer exerts a pressing force on the carrying box 200, and the first limiting member The limiter body 1301 in the first limiter 1300 is only in slight contact with the carrying box 200 under the action of gravity. In this way, when the limiter body 1301 in the first limiter 1300 receives a driving force, the sliding movement in the first limiter 1300 The protrusion 1302 can slide in the chute S, so that the first limiting member 1300 can move in the carrier box 200 along the sliding direction X of the translation assembly 500 relative to the carrier box 200 .

In this application, in order to allow the first limiting member 1300 to move stably in the carrier box 200, two parallel chute S can be provided in the carrier box 200. Correspondingly, the first limiting member 1300 can be Two sliding protrusions 1302 connected to the limiter body 1301 are provided inside, and the two sliding protrusions 1302 can be passed through the two chute S respectively. In this way, when the first limiting member 1300 moves in the carrier box 200, through the cooperation of the two limiting protrusions 302 and the two chute S, the first limiting member 1300 can only move in the two chute S. S moves in the length direction.

It should be noted that the above embodiment is schematically described by taking the way in which the first limiting member 1300 moves within the carrier box 200 as an example. In other possible implementations, as shown in Figure 19, Figure 19 is a schematic diagram of the connection relationship between the first limiting member and the carrying box provided by another embodiment of the present application. The carrying box 200 may have a connection relationship with the first limiting member. The sliding protrusions 1302 in 1300 are matched with a plurality of mounting holes O. The plurality of mounting holes O are in the sliding direction X of the translation assembly 500 relative to the carrying box 200. The upper array is arranged, in which the sliding protrusion 1302 can pass through the mounting hole O and extend out of the mounting hole O. Here, for the cooperation method between the sliding protrusion 1302 and the fastener 1500, reference can be made to the corresponding content of the above embodiments, which will not be described again in this application.

In this case, when it is necessary to adjust the position of the first limiting member 1300 in the carrier box 200 , the first limiting member 1300 needs to be disassembled from the current position, and then the first limiting member 1300 needs to be inserted into the center of the first limiting member 1300 as needed. The sliding protrusion 1302 is installed in the mounting hole O at other positions.

In this application, as shown in Figures 18 and 19, the telescopic platform 000 may also include: a second limiting member 1600 fixed in the carrying box 200, and the second limiting member 1600 is located in the positioning member 1400 of the telescopic platform 000. The side facing away from the translation assembly 500 . That is, the positioning member 1400 in the telescopic platform 400 is located between the first limiting member 1300 and the second limiting member 1600 . The positioning member 1400 in the telescopic platform 400 may also be configured to contact the second limiting member 1600 after the translation assembly 500 moves in a direction close to the carrying box 200 .

Here, after the positioning member 1400 comes into contact with the second limiting member 1600, the positioning member 1400 will receive resistance from the second limiting member 1600 and cannot continue to move closer to the carrying box 200. Because the positioning member 1400 and the translation assembly 500 move synchronously. Therefore, after the positioning member 1400 contacts the second limiting member 1600, the translation assembly 500 cannot continue to move toward the carrier box 200.

It should be noted that the second limiting member 1600 is fixed in the carrying box 200. Therefore, after the position of the first limiting member 1300 is determined according to the projection ratio of the laser projection host, the first limiting member 1300 and the second limiting member 1600 are The distance of the limiting member 1600 in the direction perpendicular to the target plane is the maximum sliding distance of the translation assembly 500 relative to the carrying box 200 .

It should also be noted that before the operator installs the laser projection host on the support plate 501 in the translation assembly 500, the operator can fix the first limiting member 1300 in the telescopic platform 000 according to the projection ratio of the laser projection host. at corresponding positions within the carrier box 200 . After that, the operator installs the laser projection host on the support plate 501 of the translation assembly 500 in the telescopic platform 000.

During the subsequent use of the laser projection host, as shown in Figures 20 and 21, Figure 20 is a schematic diagram of the telescopic platform shown in Figure 17 when it is in the retracted state, and Figure 21 is a diagram of the telescopic platform shown in Figure 17 when it is in an external state. Schematic diagram of the extended state. Before the laser projection host is turned on, the operator can apply pulling force to the translation component 500 in the telescopic platform 000, so that the translation component 500 moves in a direction away from the target plane until the positioning member 1400 in the telescopic platform 000 and the first limiting member 1300 Abut. At this time, the telescopic platform 000 is in an extended state. When the laser projection host projects a picture to the projection screen, the size of the picture projected by the laser projection host matches the size of the projection screen. After the laser projection host is shut down, the operator can apply a pushback force to the translation assembly 500 in the telescopic platform 000, so that the translation assembly 500 moves in a direction closer to the carrying box 200 until the positioning member 1400 in the telescopic platform 000 is in contact with the second limiter. Pieces 1600 butt. At this time, the telescopic platform 000 is in a retracted state, so that the telescopic platform 000 occupies a smaller space.

In the embodiment of the present application, please refer to Figure 18, Figure 19 and Figure 22. Figure 22 is a schematic structural diagram of a positioning member provided by the embodiment of the present application. The positioning member 1400 in the telescopic platform 000 may include: a first mounting base 1401, and a first magnet 1401a and a second magnet 1401b respectively fixedly connected to both ends of the first mounting base 1401. Here, the first magnet 1401a may be disposed at an end of the first mounting base 1401 close to the first limiting member 1300, and the second magnet 1401b may be disposed at an end of the first mounting base 1401 close to the second limiting member 1600. Among them, after the translation assembly 500 moves in the direction away from the target plane, the first magnet 1401a is used to apply an adsorption force to the first limiting member 1300; after the translation assembly 500 moves in the direction close to the carrying box 200, the second magnet 1401b Used to apply adsorption force to the second limiting member 1600 .

In this application, the first limiting member 1300 and the second limiting member 1600 in the telescopic platform 000 can both be made of metal materials, and the first magnet 1401a and the second magnet 1401b in the positioning member 1400 can both be made of metal. Permanent magnets. In this way, when the translation assembly 500 moves in the direction away from the target plane, the positioning member 1400 can simultaneously move in the direction of the first limiting member 1300. After the first magnet 1401a in the positioning member 1400 contacts the first limiting member 1300 , the first magnet 1401a can exert an adsorption force on the first limiting member 1300. At this time, the adsorption force exerted by the first magnet 1401a on the first limiting member 1300 can keep the telescopic platform 000 in a stable extended state, so as to ensure that the position of the laser projection host carried by the telescopic platform 000 will not move arbitrarily. This ensures that the laser projection host can stably project images to the projection screen.

Similarly, when the translation assembly 500 moves toward the carrier box 200, the positioning member 1400 can simultaneously move toward the second limiting member 1600. The second magnet 1401b and the second limiting member 1600 in the positioning member 1400 After contact, the second magnet 1401b can exert an adsorption force on the second limiting member 1600. At this time, the adsorption force exerted by the second magnet 1401b to the second limiting member 1600 can keep the telescopic platform 000 in a stable retracted state to ensure that the position of the laser projection host carried by the telescopic platform 000 will not move arbitrarily.

It should be noted that the process of moving the translation component 500 in a direction away from the target plane and the process of moving the translation component 500 in a direction close to the carrier box 200 are both manually completed by the operator. For this reason, when the telescopic platform 000 needs to switch from the retracted state to the extended state, the operator needs to apply a pulling force to the translation assembly 500 in the telescopic platform 000, and the pulling force needs to be greater than the second magnet 1401b applying to the second limiting member 1600 Apply adsorption force. At the moment when the first magnet 1401a comes into contact with the first limiter 1300, the first magnet 1401a applies an adsorption force to the first limiter 1300, which will give a force to the operator who controls the translation assembly 500 to move in a direction away from the target plane. When the operator feels the force feedback, he or she can know that the positioning member 1400 has contacted the first limiting member 1300 . In this way, the operator can use this force feedback to stop the pulling force applied to the translation assembly 500 more quickly, thereby reducing damage to the positioning member 1400 or the first limiting member 1300 due to excessive force by the operator.

Similarly, when the telescopic platform 000 needs to switch from the extended state to the retracted state, the operator needs to apply a back thrust to the translation assembly 500 in the telescopic platform 000, and the back thrust force is greater than the force of the first magnet 1401a to the first limiting member. 1300 exerts adsorption force. At the moment when the second magnet 1401b comes into contact with the second limiting member 1600, the second magnet 1401b exerts an adsorption force on the second limiting member 1600, which will give the operator who controls the translation assembly 500 to move in the direction close to the carrier box 200 an advantage. Force feedback, when the operator feels this force feedback, he or she can know that the positioning member 1400 has contacted the second limiting member 1600. In this way, the operator can use this force feedback to stop the back thrust force applied to the translation assembly 500 more quickly, thereby reducing damage to the positioning member 1400 or the second limiting member 1600 due to excessive force by the operator.

In the embodiment of the present application, as shown in Figures 18, 19 and 22, the positioning member 1400 may also include: a second mounting base 1402 fixedly connected to the first mounting base 1401, and two mounting bases respectively connected to the second mounting base 1402. The first buffer member 1402a and the second buffer member 1402b are fixedly connected at both ends. Here, the first buffer member 1402a may be disposed at an end of the second mounting base 1402 close to the first limiting member 1300, and the second buffering member 1402b may be disposed at an end of the second mounting base 1402 close to the second limiting member 1600. wherein, in the sliding direction The second buffering member 1402b protrudes relative to the second magnet 1401b, and the second buffering member 1402b can contact the second limiting member 1600.

In this application, the first buffering member 1402a and the second buffering member 1402b in the positioning member 1400 are both made of rubber material with buffering capability. In this way, when the positioning member 1400 moves toward the first limiting member 1300, before the first magnet 1401a in the positioning member 1400 contacts the first limiting member 1300, the first buffer member in the positioning member 1400 1402a may first contact the first limiting member 1300. At this time, through the buffering of the first buffering member 1402a, the magnitude of the impact force generated between the first magnet 1401a and the first limiting member 1300 at the moment of contact can be reduced. , thereby reducing the probability that the first magnet 1401a and the first limiting member 1300 are damaged.

Similarly, when the positioning member 1400 moves toward the second limiting member 1600, before the second magnet 1401b in the positioning member 1400 contacts the second limiting member 1600, the second buffer in the positioning member 1400 The member 1402b may first contact the second limiting member 1600. At this time, through the buffering of the second buffering member 1402b, the impact force generated between the second magnet 1401b and the second limiting member 1600 at the moment of contact can be reduced. size, thereby reducing the probability that the second magnet 1401b and the second limiting member 1600 are damaged.

In the embodiment of the present application, please refer to Figures 23 and 24. Figure 23 is a schematic structural diagram of another telescopic platform provided by the embodiment of the present application. Figure 24 is an exploded view of the telescopic platform shown in Figure 23. The telescopic platform 000 It may also include: a first slide rail L1 fixed in the carrier box 200, and a second slide rail L2 slidingly connected to the first slide rail L1. The second slide rail L2 may be fixedly connected to the translation assembly 500 and the positioning member 1400 respectively. The length direction of the first slide rail L1 and the length direction of the second slide rail L2 are both perpendicular to the target plane.

Here, through the mutual cooperation of the first slide rail L1 and the second slide rail L2, the size of the translation assembly 500 and the carrying box 200 can be reduced. The friction force between them allows the operator to conveniently control the translation assembly 500 to slide in a direction perpendicular to the target plane.

For example, as shown in Figure 25, Figure 25 is a schematic diagram of the connection relationship between a positioning member, a second slide rail and a translation component provided by an embodiment of the present application. The second slide rail L2 may include: a first part L21 always located in the carrier box 200, and a second part L22 fixedly connected to the first part L21. Here, the end of the first part L21 of the second slide rail L2 facing away from the second part L22 is fixedly connected to the positioning member 1400. For example, the first part L21 of the second slide rail L2 may face away from the second mounting seat 1402 of the positioning member 1400. One side of the first mounting base 1401 is fixedly connected. The second portion L22 of the second slide rail L2 may be fixedly connected to the side of the translation assembly 500 . In this way, the positioning member 1400 and the translation assembly 500 can be connected together through the second slide rail L2, and when the second slide rail L2 slides relative to the first slide rail L1, the positioning member 1400 and the translation assembly 500 can move synchronously.

It should be noted that, as shown in Figures 23 and 24, in order to allow the translation assembly 500 to slide stably in a direction perpendicular to the target plane, the first slide rail L1 and the second slide rail L2 in the telescopic platform 000 The number of can be two. Among them, two first slide rails L1 are respectively fixed on two opposite inner surfaces of the carrier box 200 , two second slide rails L2 are fixedly connected to both sides of the translation assembly 500 , and the two second slide rails L2 is located between the two first slide rails L1. In this way, when the translation assembly 500 moves in the direction away from or close to the carrier box 200, the second slide rails L2 on both sides of the translation assembly 500 slide between the first slide rails L1, and there is no relationship between the translation assembly 500 and the carrier box 200. The direct contact further reduces the resistance encountered by the translation assembly 500 during movement.

In this application, as shown in Figures 23 and 24, the telescopic platform 000 may also include: a first auxiliary slide rail F1 fixed in the carrying box 200, and a second auxiliary slide rail F1 slidingly connected to the first auxiliary slide rail F1. Rail F2. The first auxiliary slide rail F1 is located between the two first slide rails L1, and the second auxiliary slide rail F2 is fixedly connected to the side of the translation assembly 500 close to the carrying box 200.

For example, the side of the first auxiliary slide rail F1 facing the carrier box 200 has a connector V, and the first auxiliary slide rail F1 is fixed in the carrier box 200 through the connector V. Here, the sum of the thickness of the connector V, the thickness of the first auxiliary slide rail F1 and the thickness of the second auxiliary slide rail F2 can be equal to the thickness of the side of the support plate 501 facing away from the laser projection host and the thickness of the carrier box 200 connected to the connector V. The distance between sides. In this way, the first auxiliary slide rail F1 and the second auxiliary slide rail F2 that cooperate with each other can be provided between the carrying box 200 and the translation assembly 500 through the connection member V.

Since the second auxiliary slide rail F2 is fixedly connected to the side of the translation assembly 500 close to the carrying box 200, a force along the direction of gravity can be applied to the translation assembly 500 through the support V, the first auxiliary guide rail F1 and the second auxiliary guide rail F2. of support. In this way, during the process of adjusting the position of the translation component 500, the translation component 500 can slide in a direction away from or closer to the target plane more stably. At the same time, under the action of this supporting force, when the second slide rails L2 on both sides of the translation assembly 500 slide between the first slide rails L1, the resistance received by the second slide rail L2 from the first slide rail L1 will also be reduced. In this way, by arranging the first auxiliary slide rail F1 and the second auxiliary slide rail F2 in the telescopic platform 000, the resistance encountered by the translation assembly 500 during the sliding process can be further reduced.

It should be noted that, as shown in Figure 23, the carrying box 200 has an accommodation space 200a, a positioning member 1400, a first limiting member 1300, a second limiting member 1600, a first slide rail L1, and a second slide rail L2. At least part of the first auxiliary slide rail F1 and at least part of the second auxiliary slide rail F2 may be located in this accommodation space 200a.

Optionally, as shown in Figure 25, the support plate 501 may have a groove U. After the translation assembly 500 carries the laser projection host, the orthographic projection of the groove U on the support plate 501 is located at the position of the laser projection host on the support plate 501. In the front projection, since the groove U is a through groove, the laser projection host can dissipate heat through the groove U to ensure that the laser projection equipment is in good working condition. At the same time, the weight of the support plate 501 can also be reduced by arranging the groove U, thereby reducing the weight of the telescopic platform 000.

In the embodiment of the present application, please refer to Figures 26 and 27. Figure 26 is a schematic structural diagram of a laser projection system provided by an embodiment of the present application. Figure 27 is a telescopic platform carrying a laser projection host provided by an embodiment of the present application. schematic diagram. The laser projection system 001 may include: a laser projection host 002 and the telescopic platform 000 shown in the above embodiment, for example, The telescopic platform 000 may be the telescopic platform 000 shown in FIGS. 1 , 2 , 9 , 10 , 11 , 12 , 20 and 22 . The laser projection host 002 may be located on the translation assembly 500 in the telescopic platform 000.

In this embodiment of the present application, the laser projection system 001 may also include a projection screen 003 , and the laser projection host 002 may be used to project a projection image to the projection screen 003 .

In a possible implementation, the target plane may be a wall, and both the fixed bracket 100 and the projection screen 003 in the telescopic platform 000 may be fixed on the wall.

In a possible implementation, the cabinet 004 can be set next to the wall. In this case, the target plane can be the side of the cabinet 003 that is close to the wall and parallel to the wall. The telescopic platform 000 can be placed on the cabinet 004, and the projection screen 003 can be fixed on the wall adjacent to the cabinet 004.

In this application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more than two, unless expressly limited otherwise.

The above are only optional embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the present application. within the scope of protection.

Claims

A telescopic platform, characterized by including:

Fixed bracket, the fixed bracket is used to be fixed on the target plane;

A carrying box fixedly connected to the fixed bracket;

A first driving component and at least two sliding components are located in the carrier box. The two sliding components are respectively distributed on both sides of the carrier box. The first driving component is located between the two sliding components. And distributed on one side of the carrying box, the first driving component is fixedly connected to one of the sliding components;

Translation components, the translation components are fixedly connected to the two sliding components respectively, and the translation components are used to carry the laser projection host;

Wherein, the first driving component is configured to drive the translation component to move in a direction perpendicular to the target plane through the two sliding components.
The telescopic platform according to claim 1, characterized in that each of the sliding components includes a guide rod and at least one sliding member, and the at least one sliding member is sleeved on the guide rod and connected with the guide rod. sliding connection;

The first driving component is fixedly connected to the sliding member in one of the sliding components.
The telescopic platform according to claim 2, characterized in that the first driving component includes: a first driving motor fixed in the carrying box, a transmission shaft connected to the first driving motor, and a The transmission member is movably connected to the transmission shaft. The first drive motor is used to drive the transmission member to slide along the transmission shaft. The transmission member is fixed to the sliding member in one of the sliding components through a synchronizing member. connect.
The telescopic platform according to claim 2, characterized in that the translation assembly includes: a support plate, and two guide rails fixedly connected to both sides of the support plate, and the two guide rails are respectively connected to the two The sliding parts in the sliding assembly are fixedly connected, and the support plate is used to carry the laser projection host.
The telescopic platform according to claim 4, characterized in that the translation assembly further includes: at least one bracket detachably connected to the support plate, the bracket is located on a side of the support plate away from the carrying box , the extension direction of the bracket is parallel to the target plane, in the extension direction of the bracket, the length of the bracket is greater than the width of the support plate, and the at least one bracket is used to carry the laser projection host.
The telescopic platform according to claim 4, characterized in that the telescopic platform further includes: a cover plate fixedly connected to the carrying box, the cover plate and the support plate are arranged in parallel, and the cover plate closer to the target plane than the support plate.
The telescopic platform according to claim 6, wherein the cover plate is a flat cover plate, or the cover plate is a bent cover plate, and one of the bent cover plates faces the target plane. Side bend.
The telescopic platform according to claim 4, characterized in that the telescopic platform further includes: a telescopic dust cover, one end of the dust cover is fixed to an end of the carrying box close to the target plane The other end is fixedly connected to the end of the support plate close to the target plane.
The telescopic platform according to any one of claims 1 to 8, characterized in that the telescopic platform further includes: a plurality of casters connected to the translation assembly, and the plurality of casters are used to be close to the laser projection host The translation assembly is connected on one side.
The telescopic platform according to any one of claims 1 to 8, characterized in that the telescopic platform further includes: a second driving component;

The second drive assembly includes: a second drive motor fixed on the translation assembly, and a connecting rod connected to the second drive motor, the connecting rod being used to move the laser projection host close to the translation One side of the assembly is connected, and the second driving motor is configured to drive the connecting rod to move in a direction parallel to the target plane.
The telescopic platform according to claim 10, characterized in that the translation assembly includes a support plate, the support plate has a through hole, the second drive motor is fixed at the through hole, and the second drive motor The motor is located on the support plate Near the side of the carrying box, a part of the connecting rod passes through the through hole and is connected to the second driving motor, and the other part protrudes from the support plate.
The telescopic platform according to claim 11, characterized in that the part of the connecting rod protruding from the support plate has external threads, and the part of the connecting rod passing through the through hole is connected with the third The output shafts of the two drive motors are fixedly connected;

Wherein, the connecting rod is used to be threadedly connected to a side of the laser projection host close to the translation component.
The telescopic platform according to claim 12, wherein the second driving motor is a telescopic motor, and the output shaft of the second driving motor can telescope in a direction parallel to the target plane.
The telescopic platform according to claim 12, wherein the laser projection host has a plurality of threaded holes on a side close to the translation component;

The telescopic platform includes a plurality of second driving assemblies, a plurality of connecting rods in the plurality of second driving assemblies corresponding to the plurality of threaded holes, and each connecting rod is used to connect with a corresponding Threaded hole threaded connection;

Wherein, the plurality of second drive motors in the plurality of second drive assemblies are configured to: simultaneously drive the plurality of connecting rods to move synchronously to adjust the distance between the laser projection host and the support plate; Alternatively, the plurality of connecting rods are driven to move asynchronously to adjust the light emission angle of the laser projection host.
The telescopic platform according to any one of claims 11 to 14, characterized in that the telescopic platform further includes: a control component fixed in the carrying box, the control component is respectively connected with the first driving motor and the The second drive motor communication connection.
The telescopic platform according to claim 15, characterized in that the telescopic platform further includes: a position sensor located in the carrying box, the position sensor is electrically connected to the control component, and the control component is configured to : Detect the position information of the translation component through the position sensor to control the working state of the first drive motor.
The telescopic platform according to claim 15, characterized in that the telescopic platform further includes: a prompt panel fixedly connected to the side of the carrying box facing away from the target plane, and the prompt panel is electrically connected to the control component. connect.
The telescopic platform according to any one of claims 1 to 8, characterized in that the fixed bracket includes: a vertically distributed first sub-bracket and a second sub-bracket, the first sub-bracket is used to be fixed on the target On the plane, one end of the second sub-bracket is fixedly connected to the first sub-bracket, and the second sub-bracket is fixedly connected to the carrying box.
A laser projection system, characterized by comprising: a laser projection host and the telescopic platform according to any one of claims 1 to 18, the laser projection host being located on a translation component in the telescopic platform.
The laser projection system according to claim 19, characterized in that the laser projection system further includes: a projection screen, and the laser projection host is used to project images to the projection screen;

The projection screen and the fixed bracket in the telescopic platform are both fixed on the wall.