Projection device

Abstract

The utility model provides projection equipment. The projection equipment comprises a telescopic platform and a projection host. The telescopic platform comprises a supporting seat and a moving table, and the moving table is movably arranged on the supporting seat and used for bearing the projection host. A mounting space is formed between the movable table and the supporting seat, the movable seat comprises a reserved opening, a cable of the projection host enters the mounting space through the reserved opening, and when the projection host moves along with the movable table, the reserved opening limits the cable to move relative to the reserved opening, so that the cable is hidden in the telescopic platform to guarantee attractiveness; and the cable outside the mounting space can be kept still in the moving process of the projection host, so that the cable is prevented from being bent and damaged, and the stability of the projection equipment is improved.

Description

[0001] This application is based on the division of the Chinese utility model application CN202323186230.5 (2023-11-23), the utility model name: the telescopic platform applied to the projection equipment and the projection equipment. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of projection devices, in particular to a telescopic platform applied to a projection equipment and the projection equipment. BACKGROUND

[0003] The existing projection equipment, such as laser television, usually includes a projection host and a projection screen. In use, the projection host projects an image to the projection screen for a user to watch. In order to ensure that the image on the projection screen is clear and beautiful, a certain distance needs to be maintained between the projection host and the projection screen when the projection host is projecting. When the projection host is placed on a TV cabinet, if the width of the TV cabinet is insufficient, the projection distance of the projection host cannot be met. At this time, a telescopic platform is configured on the TV cabinet. The telescopic platform usually has a base and a moving table. The projection host is placed on the moving table. The moving table drives the projection host to move relative to the base in a direction away from the projection screen to adjust the projection distance of the projection host and ensure that the projection host projects a clear and beautiful image on the projection screen.

[0004] In use, multiple cables (such as power lines, data lines, network lines, etc.) need to be connected to the projection host to ensure that the laser television works normally. However, in the process of moving the moving table to drive the projection host to move, the multiple cables will move with the projection host, which will cause the cables to be easily clamped between the moving table and the base of the telescopic platform, so that the cables hinder the moving table from driving the projection host to move, affecting the user's experience. SUMMARY

[0005] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a telescopic platform applied to a projection equipment and the projection equipment.

[0006] The first aspect of the present disclosure provides a telescopic platform applied to a projection equipment, comprising:

[0007] A support seat having an installation space inside;

[0008] A moving table movably arranged on the support seat, used to carry a projection host of the projection equipment, and drive the projection host to move to an extended position when the projection host is turned on to adjust the distance between the projection host and a projection screen, and drive the projection host to move to a retracted position when the projection host is turned off;

[0009] The mobile station is provided with a reserved port, which is communicated with the mounting space in the support base, and is used for the cable of the projection host to pass through and enter the mounting space;

[0010] The support base is provided with a wire outlet, which is communicated with the mounting space, and is used for the cable of the projection host to pass out to be connected with the external interface.

[0011] Optionally, the mounting space is provided with a protection piece, two ends of the protection piece are connected with the mobile station and the support base respectively, the inside of the protection piece is provided with a protection channel for the cable of the projection host to pass through, and two end channel openings of the protection channel are communicated with the reserved port and the wire outlet respectively;

[0012] When the mobile station drives the projection host to move, one end of the protection piece connected with the mobile station moves with the mobile station, and the protection piece is deformed.

[0013] Optionally, one end of the protection piece is a mobile end, and the other end is a fixed end, the fixed end is fixedly connected with the support base, and the fixed end is located at the wire outlet, the mobile end is fixedly connected with the mobile station, and the mobile end is located at the reserved port;

[0014] When the mobile station drives the projection host to move between the extended position and the retracted position, the mobile end moves with the mobile station towards the direction of approaching or away from the fixed end, so that the protection piece is deformed in bending or stretching.

[0015] Optionally, the protection piece includes a tank chain, one end of the tank chain is connected with the mobile station as the mobile end, and the other end is connected with the support base as the fixed end;

[0016] The tank chain includes a plurality of chain units connected in sequence, adjacent chain units are rotationally connected, and the interiors of the plurality of chain units are hollow to jointly form the protection channel;

[0017] When the mobile station drives the projection host to move between the extended position and the retracted position, at least part of the chain units rotate relative to each other to make the tank chain deformed in bending or stretching when the mobile station moves.

[0018] Optionally, the protection piece includes a flexible pipe, one end of the flexible pipe is connected with the mobile station as the mobile end, and the other end is connected with the support base as the fixed end;

[0019] The inside of the flexible pipe is hollow to form the protection channel, and the flexible pipe is bent or stretched when the mobile platform moves with the projection host between the extended position and the retracted position.

[0020] Optionally, a cable constraint track is arranged in the installation space and extends along the moving direction of the mobile platform, so that the cable of the projection host entering the installation space moves along the cable constraint track.

[0021] Optionally, a partition plate is arranged in the installation space and extends along the moving direction of the mobile platform, and the partition plate divides the installation space into a first installation area and a second installation area.

[0022] The first installation area is provided with a driving device connected with the mobile platform, for driving the mobile platform to move between the extended position and the retracted position, and the cable of the projection host entering the installation space is located in the second installation area.

[0023] Optionally, a first limiting part is arranged at the reserved port, for limiting the movement of the cable of the projection host at the reserved port relative to the reserved port.

[0024] Optionally, a second limiting part is arranged at the outlet, for limiting the movement of the cable of the projection host at the outlet relative to the outlet.

[0025] The second aspect of the present disclosure provides a projection device, comprising a projection host and the telescopic platform applied to the projection device as any one of the above.

[0026] The projection host is placed on the mobile platform of the telescopic platform, and a cable is connected to the projection host, and one end of the cable away from the projection host enters the installation space through the reserved port and passes out from the outlet to be connected with an external interface.

[0027] Optionally, the projection host is placed at the front end of the mobile platform in the extending direction, and the reserved port is located behind the projection host in the extending direction of the mobile platform.

[0028] Alternatively, the projection host is placed at the front end of the mobile platform in the extending direction, and the reserved port is located below the projection host.

[0029] The technical solution provided by the present disclosure has the following advantages compared with the prior art:

[0030] The telescopic platform applied to the projection device and the projection device are provided by the disclosure, the telescopic platform is used for carrying the projection host of the projection device, and drives the projection host to switch between the extended position and the retracted position, so as to adjust the relative distance between the projection host and the projection screen, and then ensure good projection display effect; by setting the reserved port on the moving table and the outlet on the support base, after the projection host is placed on the moving table, the cable of the projection host passes through the reserved port into the installation space, and the cable passes out of the installation space from the outlet. By such setting, the cable of the projection host can be stored in the installation space, and when the moving table drives the projection host to move, the part of the cable of the projection host located in the installation space can move with the movement of the moving table, that is, the cable of the projection host moves inside the telescopic platform. Compared with the prior art in which the cable of the projection host is exposed outside, the cable of the projection host does not affect the movement of the moving table between the extended position and the retracted position, avoids the cable being stuck between the moving table and the support base when the moving table moves, and improves the stability and smoothness of the movement of the moving table. The hiding function of the cable of the projection host is also realized, avoiding the cable of the projection host being exposed outside and causing the cable to be messy, which affects the experience effect of the user. BRIEF DESCRIPTION OF DRAWINGS

[0031] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the disclosure and, together with the specification, serve to explain the principles of the disclosure.

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the disclosure or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0033] Figure 1 The structure schematic view of the moving table in the extended position according to the embodiment of the disclosure;

[0034] Figure 2 The top view of the moving table in the extended position according to the embodiment of the disclosure;

[0035] Figure 3 The internal structure schematic view of the moving table in the extended position according to the embodiment of the disclosure;

[0036] Figure 4 The internal structure top view of the moving table in the extended position according to the embodiment of the disclosure;

[0037] Figure 5 The assembly view of the moving table in the extended position and the projection host according to the embodiment of the disclosure;

[0038] Figure 6 Structure diagram of the mobile station in the retracted position according to an embodiment of the present disclosure;

[0039] Figure 7 Top view of the internal structure of the mobile station in the retracted position according to an embodiment of the present disclosure;

[0040] Figure 8 Structure diagram of the internal structure of the mobile station in the retracted position according to an embodiment of the present disclosure;

[0041] Figure 9 Top view of the internal structure of the mobile station in the retracted position according to an embodiment of the present disclosure;

[0042] Figure 10 Assembly diagram of the mobile station in the retracted position and the projection host according to an embodiment of the present disclosure;

[0043] Figure 11 Structure diagram of the mobile station in the extended position according to an embodiment of the present disclosure;

[0044] Figure 12 Structure diagram of the mobile station in the retracted position according to an embodiment of the present disclosure.

[0045] Wherein, 100, telescopic platform; 200, projection host; 201, cable; 300, projection screen;

[0046] 1, mobile station; 11, reserved port; 2, support seat; 21, outlet; 3, driving device; 4, mounting space; 41, first mounting area; 42, second mounting area; 421, partition; 5, protection piece; 51, mobile end; 52, fixed end; 53, tank chain; 531, chain unit. DETAILED DESCRIPTION

[0047] In order to enable a more clear understanding of the above-mentioned objects, features and advantages of the present disclosure, the schemes of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0048] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present disclosure, but the present disclosure can also be implemented in other different manners from those described herein; obviously, the embodiments in the description are only some embodiments of the present disclosure, not all the embodiments.

[0049] Reference Figures 1 to 12As shown, the embodiment of the present disclosure provides a telescopic platform 100 applied to a projection device, which is used to carry a projection host 200 of the projection device and drive the projection host 200 to switch between an extended position and a retracted position, so as to adjust the relative distance between the projection host 200 and a projection screen 300, and thus ensure a good projection display effect.

[0050] Specifically, the telescopic platform 100 includes a support seat 2 and a moving table 1, the support seat 2 has an installation space 4 inside; the moving table 1 is movably arranged on the support seat 2, used to carry the projection host 200 of the projection device, and drive the projection host 200 to move to the extended position when the projection host 200 is turned on, so as to adjust the distance between the projection host 200 and the projection screen 300, and drive the projection host 200 to move to the retracted position when the projection host 200 is turned off, so as to ensure that the projection host 200 maintains a certain distance from the projection screen 300 when projecting, and thus ensure that the projection device has a good projection display effect.

[0051] Among them, the moving table 1 is provided with a reserved port 11, the reserved port 11 is in communication with the installation space 4 in the support seat 2, and the reserved port 11 is used for the cable 201 of the projection host 200 to pass through and enter the installation space 4; the support seat 2 is provided with a wire outlet 21, the wire outlet 21 is in communication with the installation space 4, and the wire outlet 21 is used for the cable 201 of the projection host 200 to pass out to connect with the external interface.

[0052] It should be understood that the normal work of the projection host 200 at least needs to be connected with the external power supply through the power cord, and the projection host 200 also needs the data line and the audio line when connected with the sound equipment and the like, and the projection host 200 can also be connected with the network cable, the cable 201 can be selected as one or a combination of several of the power cord, the data line, the audio line and the network cable, one end of the cable 201 is connected with the projection host 200, and the other end extends away from the projection host 200 and is connected with the power supply, the sound equipment and the network terminal and the like, and the interface of the equipment connected with the power cord, the data line, the audio line and the network cable is the external interface; the power cord, the data line, the audio line and the network cable are relatively long in order to adapt to various situations.

[0053] The projection host 200 needs to project an image on the projection screen 300, and a certain distance needs to be met between the projection host 200 and the projection screen 300 to project a clear image on the projection screen 300. When the width of the TV cabinet or other furniture on which the projection host 200 is placed is insufficient, a telescopic platform (which can be referred to as a telescopic platform 100) applied to the projection device needs to be arranged. The projection host 200 is placed on the telescopic platform 100. After the projection host 200 is started, the moving table 1 of the telescopic platform moves to the extended position in the direction away from the projection screen 300, so that the projection host 200 can project a clear image on the projection screen 300. After the projection host 200 is turned off, the moving table 1 of the telescopic platform moves to the retracted position in the direction close to the projection screen 300, thereby reducing the space occupied by the telescopic platform 100 as a whole.

[0054] During the movement of the moving table 1 between the extended position and the retracted position, the projection host 200 moves with the moving table 1, and the cable 201 of the projection host 200 also needs to move together with the projection host 200. Due to the gravity of the cable 201, the cable 201 is easily lapped on the support seat 2 after the moving table 1 moves to the extended position. When the moving table 1 moves to the retracted position, the cable 201 is easily clamped in the gap between the moving table 1 and the support seat 2, thereby hindering the movement of the moving table 1 to the retracted position and also easily causing damage to the cable 201.

[0055] The telescopic platform provided by the embodiments of the present disclosure realizes that the cable 201 on the projection host 200 is placed in the installation space 4 of the support seat 2 by passing the cable 201 connected to the projection host 200 into the installation space 4 through the reserved port 11 and then out of the installation space 4 through the outlet port 21. Thus, when the projection host 200 moves between the extended position and the retracted position, the reserved port 11 and the outlet port 21 can limit the cable 201, the cable 201 located above the telescopic platform is placed in the installation space 4, so that the cable 201 is not lapped on the support seat 2, that is, the cable 201 is not clamped in the gap between the moving table 1 and the support seat 2 to hinder the movement of the moving table 1.

[0056] Specifically, the support seat 2 can be selected as a box body structure, and the internal space of the box body structure is the installation space 4. The moving table 1 is slidingly arranged on the surface of the support seat 2. Of course, the support seat 2 can also have a bottom plate and four standing plates. The bottom plate is a rectangular structure, and the four standing plates are respectively arranged at the four edges of the bottom plate and are connected to each other, so that the space surrounded by the bottom plate and the four standing plates serves as the installation space 4. The moving table 1 is slidingly arranged on the side of the bottom plate of the support seat 2 facing the installation space 4.

[0057] The driving device 3 can be arranged in the support base 2, the output end of the driving device 3 is connected with the moving table 1, so that the moving table 1 can move between the extended position and the retracted position; the sliding block and the sliding rail can be arranged in the installation space 4, the sliding rail is arranged on the support base 2 along the direction from the extended position to the retracted position, the sliding block is slidably connected with the sliding rail, and the sliding block is connected with the moving table 1, so that the moving table 1 is movably arranged on the support base 2.

[0058] The moving table 1 can be a rectangular plate body, or a box body structure arranged on the support base 2 along the direction from the extended position to the retracted position, and one side of the box body structure is provided with an opening, so that the support base 2 can pass through the opening without affecting the movement of the moving table 1; the through hole arranged on the moving table 1 can be used as the reserved opening 11, so that the cable 201 can pass through the reserved opening 11 and enter the installation space 4, or the moving table 1 can be provided with a notch near one side edge close to the projection screen 300, the notch extends away from the projection screen 300, so that the cable 201 can pass through the notch and enter the installation space 4.

[0059] The outlet 21 can be a through hole arranged on the support base 2, the through hole is communicated with the installation space 4, so that the cable 201 in the installation space 4 can pass through the outlet 21 and exit the installation space 4, thereby the cable 201 can be connected with a power supply, a sound device, a network terminal and the like, so that the projection host 200 can work.

[0060] The cable 201 in the installation space 4 is arranged along the direction from the extended position to the retracted position, and the length of the part of the cable 201 in the installation space 4 is greater than the distance between the extended position and the retracted position; the cable 201 can be connected with the reserved opening 11, for example, the cable 201 is connected with the reserved opening 11 by a clamp or glue, so that the reserved opening 11 limits the movement of the cable 201 relative to the reserved opening 11 after the cable 201 passes through the reserved opening 11; the cable 201 is a flexible cable and can be bent and deformed, so that the part of the cable 201 in the installation space 4 is in a bent state when the moving table 1 is in the retracted position, and the cable 201 gradually stretches during the movement of the moving table 1 to the extended position, thereby avoiding the cable 201 being pulled off during the movement of the moving table 1.

[0061] The outlet 21 can be connected with the cable 201, for example, the cable 201 is connected with the outlet 21 by a clamp or a caster, so that the outlet 21 limits the movement of the cable 201 relative to the outlet 21 after the cable 201 passes through the outlet 21; the cable 201 can be bent and deformed, so that the part of the cable 201 in the installation space 4 is in a bent state when the moving table 1 is in the retracted position, and the cable 201 gradually stretches during the movement of the moving table 1 to the extended position, thereby avoiding the cable 201 being pulled off during the movement of the moving table 1.

[0062] It can be understood that the reserved port 11 and the outlet port 21 can also be selected to be connected with the cable 201, so that after the cable 201 passes through the reserved port 11 and the outlet port 21, the reserved port 11 limits the movement of the cable 201 relative to the reserved port 11, and the outlet port 21 limits the movement of the cable 201 relative to the outlet port 21. The length of the part of the cable 201 located in the installation space 4 is greater than the distance between the extended position and the retracted position, and the cable 201 can be bent, so that when the mobile station 1 is in the retracted position, the part of the cable 201 located in the installation space 4 is in a bent state, and during the movement of the mobile station 1 to the extended position, the cable 201 gradually stretches.

[0063] The length of the part of the cable 201 located in the installation space 4 is greater than the distance between the extended position and the retracted position, that is, when the mobile station 1 moves, the cable 201 bends and deforms in the installation space 4, so that part of the cable 201 can move together with the mobile station 1, avoiding the cable 201 being pulled off when the mobile station 1 moves.

[0064] Of course, it is not limited to the reserved port 11 and the outlet port 21 having gaps with the cable 201, so that the cable 201 can move relative to the reserved port 11 and the outlet port 21, and the length of the part of the cable 201 located in the installation space 4 is greater than the distance between the extended position and the retracted position. When the mobile station 1 is in the retracted position, the cable 201 is in a bent state, and during the movement of the mobile station 1 to the extended position, the cable 201 gradually stretches, or when the mobile station 1 is in the extended position, the length of the cable 201 located in the installation space 4 is less than the distance between the extended position and the retracted position. When the mobile station 1 moves towards the extended position, the cable 201 moves with the projection host 200, and the part of the cable 201 located outside the outlet port 21 enters the installation space 4 with the movement of the projection host 200, so that the cable 201 does not hinder the movement of the mobile station 1, and the cable 201 is also not damaged by the movement of the mobile station 1.

[0065] The telescopic platform applied to the projection device provided by the embodiments of the present disclosure is used as follows: the telescopic platform 100 is installed on a desktop or a wall close to the projection screen 300, the projection host 200 is placed on the telescopic platform, one end of the cable 201 is electrically connected with the projection host 200, the other end of the cable 201 enters the installation space 4 through the reserved opening 11, and then the cable 201 is led out of the installation space 4 from the wire outlet 21 to be connected with components such as a power supply, a sound device and a network terminal; when the projection host 200 is powered off, the moving table 1 is located at the retracted position, and the cable 201 in the installation space 4 is in a bent state; when the projection host 200 is powered on, the moving table 1 moves from the retracted position to the extended position, the projection host 200 moves with the moving table 1 to drive the cable 201 to move, the cable 201 in the installation space 4 gradually stretches, when the moving table 1 moves to the extended position, the projection host 200 starts to project on the projection screen 300; when the projection host 200 completes the projection operation, the moving table 1 moves from the extended position to the retracted position, and in this process, the cable 201 in the installation space 4 gradually bends, the moving table 1 moves to the retracted position, and the projection host 200 is powered off.

[0066] The telescopic platform applied to the projection device provided by the embodiments of the present disclosure is used as follows: the telescopic platform 100 is installed on a desktop or a wall close to the projection screen 300, the telescopic platform 100 is installed on a desktop or a wall close to the projection screen 300, the projection host 200 is placed on the telescopic platform, one end of the cable 201 is electrically connected with the projection host 200, the other end of the cable 201 enters the installation space 4 through the reserved opening 11, and then the cable 201 is led out of the installation space 4 from the wire outlet 21 to be connected with components such as a power supply, a sound device and a network terminal; when the projection host 200 is powered off, the moving table 1 is located at the retracted position, and the cable 201 in the installation space 4 is in a bent state; when the projection host 200 is powered on, the moving table 1 moves from the retracted position to the extended position, the projection host 200 moves with the moving table 1 to drive the cable 201 to move, the cable 201 in the installation space 4 gradually stretches, when the moving table 1 moves to the extended position, the projection host 200 starts to project on the projection screen 300; when the projection host 200 completes the projection operation, the moving table 1 moves from the extended position to the retracted position, and in this process, the cable 201 in the installation space 4 gradually bends, the moving table 1 moves to the retracted position, and the projection host 200 is powered off.

[0067] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9As shown, in some embodiments, a protection piece 5 is arranged in the mounting space 4, two ends of the protection piece 5 are connected with the mobile table 1 and the support base 2 respectively, an inner part of the protection piece 5 is provided with a protection passage through which the cable 201 of the projection host 200 passes, two end passage openings of the protection passage are communicated with the reserved opening 11 and the wire outlet 21 respectively, in this way, after the cable 201 of the projection host 200 enters the mounting space 4 of the support base 2 through the reserved opening 11, the cable 201 can pass through the protection passage on the protection piece 5 and then pass out from the wire outlet 21; when the mobile table 1 drives the projection host 200 to move, the end of the protection piece 5 connected with the mobile table 1 moves with the mobile table 1 and makes the protection piece 5 deform, so that the protection piece 5 protects the cable 201 of the projection host 200 located in the protection passage.

[0068] Specifically, the protection piece 5 can be selected as a flexible hose, the inside of the hose is hollow, the space inside the hose is used as the protection passage, the hose is arranged in the mounting space 4, one end of the hose faces the reserved opening 11 and the other end faces the wire outlet 21, a buckle can be arranged on the support base 2 inside the mounting space 4, one end of the hose is connected with the buckle and the other end is connected with the mobile table 1, the pair of faces of the mobile table 1 facing the support base 2 can be provided with buckles, the end of the hose is clamped with the buckle of the mobile table 1, of course, the end of the hose can also be bonded with the mobile table 1 by using glue, after the cable 201 enters the mounting space 4 from the reserved opening 11, the cable 201 enters the protection passage from the end of the hose close to the mobile table 1 and then passes out of the protection passage from the end of the hose close to the wire outlet 21, the cable 201 passing out of the protection passage passes out of the mounting space 4 from the wire outlet 21.

[0069] Of course, the protection piece 5 can also be selected as a hollow tank chain, one end of the tank chain is connected with the support base 2 and the other end is connected with the mobile table 1, bolts can be used to connect the tank chain with the support base 2 and the mobile table 1, of course, casters can also be used to connect the tank chain with the support base 2 and the mobile table 1, one end of the tank chain faces the reserved opening 11 and the other end faces the wire outlet 21, the space inside the tank chain is the protection passage, the cable 201 located in the mounting space 4 enters the protection passage from the end of the tank chain close to the reserved opening 11 and passes out of the protection passage from the end of the tank chain close to the wire outlet 21.

[0070] The distance between the mobile station 1 and the retracted position is the maximum distance, which is the limit position. The limit position can be the extended position, or the extended position can be located between the limit position and the retracted position. The length of the protection member 5 can be greater than or equal to the distance between the limit position and the retracted position. When the mobile station 1 is in the retracted position, the protection member 5 is in a bent state. When the mobile station 1 moves towards the extended position, the protection member 5 gradually stretches to match the bending state of the cable 201 in the protection channel. When the mobile station 1 moves to the limit position, the length of the protection member 5 is equal to the distance between the limit position and the retracted position, and the protection member 5 is in a fully stretched state. When the length of the protection member 5 is greater than the distance between the limit position and the retracted position, the protection member 5 is still in a bent state.

[0071] By setting the telescopic platform, the protection member 5 is also provided. The protection member 5 has a protection channel and can be bent and deformed. The two ends of the protection member 5 are connected with the mobile station 1 and the support seat 2 respectively, so that the protection member 5 can bend and stretch with the movement of the mobile station 1. Therefore, the cable 201 in the installation space 4 can be located in the protection channel of the protection member 5, avoiding the cable 201 contacting other components of the telescopic platform in the installation space 4 when the cable 201 bends and stretches with the movement of the mobile station 1, which causes the bending and stretching deformation of the cable 201 to be blocked. It can also avoid the cable 201 from knotting during bending and stretching, thereby improving the stability and smoothness of the movement of the cable 201 in the installation space 4.

[0072] Referring to Figure 1 , Figure 3 , Figure 4 , Figure 8 and Figure 9 , in some embodiments, one end of the protection member 5 is a mobile end 51, and the other end is a fixed end 52. The fixed end 52 is fixedly connected with the support seat 2, and the fixed end 52 is located at the outlet 21. The mobile end 51 is fixedly connected with the mobile station 1, and the mobile end 51 is located at the reserved port 11.

[0073] When the mobile station 1 drives the projection host 200 to move between the extended position and the retracted position, the mobile end 51 moves with the mobile station 1 towards or away from the fixed end 52, so that the protection member 5 is bent or stretched.

[0074] Specifically, the reserved port 11 can be provided with a connecting piece extending towards the installation space 4. The mobile end 51 is fixedly connected with one end of the connecting piece away from the reserved port 11, so that the mobile end 51 is located close to the reserved port 11. Of course, the mobile end 51 can be fixedly connected with one side of the mobile station 1 facing the support seat 2, and the mobile end 51 is located close to the reserved port 11.

[0075] The inner wall of the mounting space of the support base 2 can be provided with a vertical plate at a position close to the outlet 21. The fixed end 52 is fixedly connected with the vertical plate. The fixed end 52 can be fixedly connected with the vertical plate by bolts or rivets. Alternatively, the fixed end 52 can be fixedly connected with the inner wall of the support base 2 by bolts or rivets. The fixed end 52 is located at a position close to the outlet 21.

[0076] When the mobile station 1 moves from the retracted position to the extended position, the mobile end 51 moves away from the fixed end 52. The distance between the mobile end 51 and the fixed end 52 gradually increases. The protection member 5 gradually extends. When the mobile station 1 moves from the extended position to the retracted position, the mobile end 51 moves towards the fixed end 52. The distance between the mobile end 51 and the fixed end 52 gradually decreases. The protection member 5 gradually bends.

[0077] The mobile end 51 can be provided with a through hole. The through hole is in communication with the protection channel. When the mobile end 51 is close to the reserved opening 11, the cable 201 passing through the reserved opening 11 can enter the protection channel through the through hole. The fixed end 52 is provided with a through hole. The through hole is in communication with the protection channel. The cable 201 in the protection channel can pass out of the through hole. The cable 201 bends and extends together with the protection member 5.

[0078] One end of the protection member 5 is the mobile end 51, and the other end is the fixed end 52. The fixed end 52 is fixedly connected with the support base 2. The mobile end 51 is fixedly connected with the mobile station 1. When the mobile end 51 moves with the mobile station 1, the mobile end 51 and the fixed end 52 move away from and close to each other. The protection member 5 bends and extends. The fixed end 52 is located at a position close to the outlet 21. The mobile end 51 is located at a position close to the reserved opening 11. The cable 201 can conveniently pass into the protection channel from the mobile end 51 after passing into the reserved opening 11. The cable 201 can conveniently pass out of the outlet 21 after passing out of the fixed end 52. The positions of the mobile end 51 and the fixed end 52 are reasonably arranged. The cable 201 can conveniently pass through the protection channel of the protection member 5 and then pass out of the outlet 21.

[0079] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 8 and Figure 9As shown, in some embodiments, the protection member 5 comprises a tank chain 53, one end of the tank chain 53 is connected with the mobile station 1 as a mobile end 51, and the other end is connected with the support base 2 as a fixed end 52; the tank chain 53 comprises a plurality of chain units 531 connected in sequence, adjacent chain units 531 are rotationally connected, and the interiors of the plurality of chain units 531 are collectively configured as a protection channel; when the mobile station 1 drives the projection host 200 to move between the extended position and the retracted position, at least part of the chain units 531 rotate relative to each other to make the tank chain 53 bend or stretch when the mobile station 1 moves.

[0080] Specifically, the chain unit 531 can be selected as a hollow rectangular structure, both ends of the chain unit 531 are provided with a rotating hole, a plurality of chain units 531 are arranged in a straight line, the rotating holes of adjacent two chain units 531 are coincided, a rivet is used to pass through the rotating holes of the adjacent two chain units 531 to rotationally connect the two chain units 531, and the adjacent two chain units 531 in the plurality of chain units 531 are rotationally connected, so that the tank chain 53 realizes the bending and unfolding operation through the relative rotation between the plurality of chain units 531.

[0081] Since the chain unit 531 is a hollow structure, the space in the plurality of chain units 531 collectively forms a protection channel after the plurality of chain units 531 are sequentially connected in a straight line, and the tank chain 53 is also penetrated by the protection channel. The mobile station 1 can be selected to be provided with a connecting piece extending towards the support base 2, one end of the tank chain 53 is connected with the end of the connecting piece away from the mobile station 1 as the mobile end 51, and of course, one end of the tank chain 53 can also be connected with the end of the mobile station 1 towards the support base 2 as the mobile end 51; the other end of the tank chain 53 is fixedly connected with the support base 2 as the fixed end.

[0082] When the mobile station 1 is located at the retracted position, the tank chain 53 is in a bent state, when the mobile station 1 moves towards the extended position, the distance between the mobile end 51 and the fixed end 52 increases, and the tank chain 53 gradually stretches, when the mobile station 1 moves towards the retracted position, the distance between the mobile end 51 and the fixed end 52 decreases, and the tank chain 53 gradually bends, and the cable 201 bends and stretches together with the tank chain 53 in the tank chain 53.

[0083] By setting the protection piece 5 to include the tank chain 53, the tank chain 53 includes a plurality of chain units 531, the chain units 531 are hollow structures, the plurality of chain units 531 are connected in sequence, and the two adjacent tank chains 53 are rotationally connected, so that the tank chain 53 can bend and stretch, and a protection passage is formed in the inside of the tank chain 53. Since each chain unit 531 of the tank chain 53 has a certain structural strength, when the cable 201 is located in the inside of the tank chain 53, the tank chain 53 has a better protection effect on the cable 201, and the bending and stretching movement of the tank chain 53 rotates the plurality of chain units 531 relative to each other, which can avoid the movement of the tank chain 53 from being estimated to remain stable when the tank chain 53 bends and stretches, and avoid interference between the tank chain 53 and other parts in the telescopic platform when the tank chain 53 bends.

[0084] In some embodiments, the protection piece 5 includes a flexible pipe, one end of the flexible pipe is connected with the moving table 1 as a moving end 51, and the other end is connected with the support base 2 as a fixed end 52; the inside of the flexible pipe is hollow to form a protection passage, and when the moving table 1 drives the projection host 200 to move between the extended position and the retracted position, the flexible pipe bends or stretches deforms along with the movement of the moving table 1.

[0085] Specifically, the flexible pipe can be a flexible hose that can bend, buckles can be arranged on the moving table 1 near the reserved port 11, so that one end of the flexible pipe can be buckled with the buckle of the moving table 1 as the moving end 51, and buckles are buckled on the inner wall of the installation space 4 of the support base 2 at the position of the outlet port 21, so that the other end of the flexible pipe is buckled with the buckle of the support base 2 as the fixed end 52.

[0086] When the moving table 1 is located at the retracted position, the flexible pipe is in a bent state, when the moving table 1 moves towards the extended position, the distance between the moving end 51 and the fixed end 52 increases, the flexible pipe gradually stretches, when the moving table 1 moves towards the retracted position, the distance between the moving end 51 and the fixed end 52 decreases, the flexible pipe gradually bends, and the cable 201 bends and stretches together with the flexible pipe in the flexible pipe.

[0087] By setting the protection piece 5 to include the flexible pipe, the inside of the flexible pipe is provided with the protection passage penetrating through the flexible pipe, and the two ends of the flexible pipe are respectively connected with the moving table 1 and the support base 2, the manufacturing cost of the flexible pipe is low, the cable 201 in the installation space 4 can be constrained, the cable 201 in the moving table 1 is prevented from interfering with the components in the telescopic platform during the movement of the moving table 1, the manufacturing cost of the telescopic platform is reduced, and the stability of the cable 201 moving in the installation space 4 is improved.

[0088] In some embodiments, a cable constraint track (not shown in the figure) is arranged in the installation space 4, and the cable constraint track is arranged along the movement direction of the moving table 1, so that the cable 201 of the projection host 200 entering the installation space 4 moves along the cable constraint track.

[0089] Specifically, the inner wall of the installation space 4 can be provided with a groove extending from the extended position to the retracted position, and the part of the cable 201 located in the installation space 4 is located in the groove, so that the cable 201 is located in the cable constraint track when it is bent and stretched with the movement of the moving platform 1, thereby avoiding the interference between the cable 201 and other parts in the telescopic platform when the cable 201 is bent and stretched with the movement of the moving platform 1.

[0090] Of course, two vertical plates parallel to each other can also be provided on the inner wall of the installation space 4 on the side facing the moving platform 1, and the two vertical plates extend from the extended position to the retracted position, and the space between the two vertical plates forms a cable constraint track, and the part of the cable 201 located in the installation space 4 is located in the cable constraint track, so that the cable 201 is located in the cable constraint track when it is bent and stretched with the movement of the moving platform 1.

[0091] By providing a cable constraint track in the installation space, the cable 201 is located in the cable constraint track when it is bent and stretched with the movement of the moving platform 1, thereby avoiding the interference between the cable 201 and other parts in the telescopic platform when the cable 201 is bent and stretched with the movement of the moving platform 1, thereby improving the stability of the movement trajectory of the cable 201 in the installation space 4.

[0092] Referring to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 8 and Figure 9 , in some embodiments, a partition 421 is provided in the installation space 4, and the partition 421 extends in the direction of movement of the moving platform 1, and the partition divides the installation space into a first installation area 41 and a second installation area 42.

[0093] The first installation area 41 is provided with a driving device 3 connected with the moving platform 1, which is used to drive the moving platform 1 to move between the extended position and the retracted position, and the cable 201 of the projection host 200 entering the installation space is located in the second installation area 42.

[0094] Specifically, the first installation area 41 and the second installation area 42 can be rectangular areas, and the first installation area 41 and the second installation area 42 both extend from the retracted position to the extended position, and the side edges of the first installation area 41 and the second installation area 42 close to each other can be attached to each other, or the first installation area 41 and the second installation area 42 can be spaced apart.

[0095] In specific implementation, the second mounting area 42 can be provided with a partition plate 421 at least near one side edge of the first mounting area 41, and the partition plate 421 extends in the direction from the retracted position to the extended position.

[0096] Specifically, the partition plate 421 can be provided on the side of the support base 2 facing the moving table 1, and the partition plate 421 can be a rectangular plate. The partition plate 421 can be connected to the support base 2 by bolts or rivets.

[0097] The number of the partition plate 421 can be one, and the partition plate 421 is provided near the edge of the second mounting area 42 close to the first mounting area 41. Alternatively, the number of the partition plate 421 can be two, and the two partition plates are provided near the edges of the second mounting area 42 close to and away from the first mounting area 41.

[0098] The driving device 3 can be an electric motor or a pneumatic cylinder. The driving device 3 is fixedly connected to the support base 2, and the output end of the driving device 3 is connected to the moving table 1. The driving device 3 can drive the moving table 1 to move between the extended position and the retracted position.

[0099] Since the output end of the driving device 3 is in motion when the driving device 3 drives the moving table 1 to move, in order to avoid interference between the cable 201 in the mounting space 4 and the driving device 3, the driving device 3 is installed in the first mounting area 41, the cable 201 is located in the second mounting area 42, and the reserved port 11 and the outlet port 21 are arranged opposite to the second mounting area 42. The protection member 5 can be arranged in the second mounting area 42, so as to ensure that the cable 201 in the mounting space 4 is located in the second mounting area 42. When the moving table 1 moves, the driving device 3 outputs driving force to the moving table 1 in the first mounting area 41, and the cable 201 bends and stretches in the second mounting area 42.

[0100] By arranging the partition plate 421 in the mounting space 4, the partition plate 421 extends in the moving direction of the moving table 1, and the partition plate 421 divides the mounting space into the first mounting area 41 and the second mounting area 42. The cable 201 in the mounting space 4 is located in the second mounting area 42. When the moving table 1 moves, the driving device 3 outputs driving force to the moving table 1 in the first mounting area 41, and the cable 201 bends and stretches in the second mounting area 42. This avoids interference between the cable 201 and the driving device 3, reasonably arranges the positions of the driving device 3 and the cable 201 in the mounting space 4, and improves the safety of the movement of the cable 201 in the mounting space 4. In addition, the partition plate 421 avoids the length of the cable 201 in the second mounting area 42 being too long to enter the first mounting area 41 when bending, and improves the stability of the cable 201 when bending and stretching in the second mounting area 42.

[0101] Referring to Figures 1 to 4 and Figures 6 to 9 In some embodiments, the first limiting part is arranged at the reserved opening 11 and is used to limit the movement of the cable 201 of the projector 200 relative to the reserved opening 11.

[0102] Specifically, the buckle can be arranged on the inner wall of the reserved opening 11 as the first limiting part, and the buckle is connected with the cable 201 after the cable 201 passes through the reserved opening 11, so that the first limiting part limits the movement of the cable 201 relative to the reserved opening 11. Of course, the adhesive can also be arranged at the reserved opening 11 as the first limiting part, and the adhesive is connected with the cable 201 after the cable 201 passes through the reserved opening 11, so as to limit the movement of the cable 201 relative to the reserved opening 11.

[0103] By arranging the first limiting part for limiting the movement of the cable 201 relative to the reserved opening 11 at the reserved opening 11, the cable 201 is connected with the first limiting part after passing through the reserved opening 11, so as to ensure that the cable 201 moves together with the reserved opening 11 when the mobile platform 1 moves, and avoid that the cable 201 is disconnected from the projector 200 when the friction force of the cable 201 in the installation space 4 is large, so as to ensure that the cable 201 moves together with the mobile platform 1 and keeps connected with the projector 200, and improve the stability of the position of the cable 201 on the telescopic platform.

[0104] Referring to Figures 1 to 4 and Figures 6 to 9 In some embodiments, the second limiting part is arranged at the outlet 21 and is used to limit the movement of the cable 201 of the projector 200 relative to the outlet 21.

[0105] Specifically, the buckle can be arranged on the inner wall of the outlet 21 as the first limiting part, and the buckle is connected with the cable 201 after the cable 201 passes through the outlet 21, so that the second limiting part limits the movement of the cable 201 relative to the outlet 21. Of course, the adhesive can also be arranged at the outlet 21 as the first limiting part, and the adhesive is connected with the cable 201 after the cable 201 passes through the outlet 21, so as to limit the movement of the cable 201 relative to the outlet 21.

[0106] By arranging the second limiting part for limiting the movement of the cable 201 relative to the outlet 21 at the outlet 21, the outlet 21 can limit the length of the cable 201 in the installation space 4, so as to avoid that the movement of the mobile platform 1 drives the cable 201 to move relative to the outlet 21, resulting in that the length in the installation space 4 is insufficient, and the movement distance of the mobile platform 1 is limited.

[0107] In some embodiments, the reserved port 11 is provided with a first limiting part for limiting the movement of the cable 201 relative to the reserved port 11, and the outlet port 21 is provided with a second limiting part for limiting the movement of the cable 201 relative to the outlet port 21, so that both ends of the cable 201 located in the installation space 4 are limited, thereby improving the stability of the cable 201 in the installation space 4 during movement.

[0108] Referring to Figure 5 , Figure 10 , Figure 11 and Figure 12 , some other embodiments of the present disclosure also provide a projection device, which comprises a projection host 200 and a telescopic platform 100 applied to the projection device as described in any of the above embodiments.

[0109] The projection host 200 is placed on the moving table 1 of the telescopic platform 100, and the cable 201 connected to the projection host 200 enters the installation space 4 through the reserved port 11 and exits from the outlet port 21 to connect with external interfaces.

[0110] Specifically, the projection host 200 can be a laser television or an ultra-short focus projector, and the projection host 200 is plugged with the cable 201, which is used to connect with external interfaces of power supply, sound, network terminal and the like to make the projection host 200 work normally; the projection host 200 can be provided with an electrical connection port, so that the cable 201 is plugged with the electrical connection port to realize the electrical connection between the cable 201 and the projection host 200; the end of the cable 201 away from the projection host 200 enters the installation space 4 through the reserved port 11, and the cable 201 exits from the outlet port 21 through the outlet port 21, and then the cable 201 is connected with the power supply, sound, network terminal and the like.

[0111] By setting the projection device to comprise the projection host 200 and the telescopic platform 100 as described in any of the above embodiments, the cable 201 of the projection host 200 can enter the installation space 4 through the reserved port 11 and exit from the outlet port 21, so that the part of the cable 201 close to the telescopic platform is stored in the inside of the telescopic platform, avoiding the cable 201 being stuck between the moving table 1 and the support seat 2 when the moving table 1 moves, thereby improving the stability and safety of the movement of the moving table 1.

[0112] Referring to Figure 5 and Figure 10 , in some embodiments, the projection host 200 is placed at the front end of the moving table 1 in the extension direction, and the reserved port 11 is located behind the projection host 200 in the extension direction of the moving table 1.

[0113] In other embodiments, the projection host 200 is placed at the front end of the mobile station 1 in the extension direction, and the reserved port 11 is located below the projection host 200.

[0114] The direction in which the mobile station 1 moves towards the extension position can be the extension direction, which is the direction away from the projection screen 300. The projection host 200 is placed at the front end of the mobile station 1 in the extension direction, which is the position of the mobile station 1 away from the projection screen 300. The rear of the projection host 200 along the extension direction of the mobile station 1 is the position of the mobile station 1 close to the projection screen 300.

[0115] The projection host 200 can be provided with a plug-in port at the bottom of the side facing the projection screen 300. After the cable 201 is connected to the plug-in port, it naturally falls. The reserved port 11 is located behind the extension direction of the mobile station 1, so that the falling cable 201 is close to the reserved port 11, facilitating the cable 201 to pass through the reserved port 11. The plug-in port is provided on the side of the projection host 200, facilitating the electrical connection of the cable 201 and the plug-in port of the projection host 200.

[0116] Of course, the projection host 200 can also be provided with a plug-in port at the bottom, so that the plug-in port faces the mobile station 1. The reserved port 11 is located below the projection host 200. After the cable 201 is connected to the plug-in port, it naturally falls and is arranged opposite to the reserved port 11, thereby facilitating the cable 201 to enter the reserved port 11 from the bottom of the projection host 200. The projection host 200 can shield the cable 201, thereby improving the visual effect of the projection host 200.

[0117] Generally, the end of the cable 201 connected to the host is small in volume. When the projection host 200 is installed, the plug-in port of the cable 201 connected to the projection host 200 can be separated first. The end of the cable 201 connected to the projection host 200 is first inserted into the installation space 4 through the wire outlet 21, then is inserted into the installation space 4 through the reserved port 11, and finally is electrically connected to the plug-in port of the projection host 200, thereby simplifying the installation operation. Of course, the reserved port 11 can have a notch extending to the edge of the mobile station 1, and the wire outlet 21 can have a notch extending to the edge of the support seat 2. When the connection parts of both ends of the cable 201 are large, the middle part of the cable 201 can pass through the notches and enter the reserved port 11 and the wire outlet 21, respectively, thereby storing the part of the cable 201 close to the extension platform 100 inside the extension platform 100.

[0118] The projection device provided by the embodiments of the present disclosure is used in specific use, the telescopic platform is installed on the TV cabinet, the projection host 200 is placed on the moving table 1, the cable 201 is electrically connected with the projection host 200, the cable 201 passes through the reserved opening 11 and enters the installation space 4, and the cable 201 enters the protection channel from the moving end 51 of the tank chain 53 and the fixed end 52 extends out of the protection channel, then the cable 201 passes out of the installation space 4 from the outlet 21, so that the cable 201 is connected with the power supply, the sound equipment, the network terminal and the like, so that the projection host 200 can be normally used.

[0119] When the projection host 200 is powered off, the moving table 1 is in the retracted position, the tank chain 53 is in the bent state, and the cable 201 in the installation space 4 is bent with the tank chain 53, after the projection host 200 is started, the driving device 3 drives the moving table 1 to move towards the extended position, the distance between the moving end 51 and the fixed end 52 of the tank chain 53 increases, the tank chain 53 gradually stretches, the cable 201 gradually stretches with the tank chain 53, and after the projection host 200 moves to the extended position, the projection host 200 performs the projection operation on the projection screen 300.

[0120] After the projection host 200 finishes the projection, the moving table 1 moves towards the retracted position, the distance between the moving end 51 and the fixed end 52 of the tank chain 53 decreases, the tank chain 53 gradually bends, the cable 201 gradually bends with the tank chain 53, the moving table 1 moves to the retracted position, and the projection host 200 is powered off; during the movement of the moving table 1 between the extended position and the retracted position, the part of the cable 201 close to the telescopic platform is stored in the tank chain 53 of the installation space 4, so as to avoid that the cable 201 hinders the movement of the moving table 1.

[0121] It should be noted that, in the present document, relational terms such as“first” and“second”, and the like, are used solely to distinguish one entity or action from another entity or action, without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms“comprises”,“comprising”, or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by“comprises a...” does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0122] The foregoing is merely illustrative of the various implementations of the present disclosure and the general principles thereof. Numerous modifications can be made to these illustrations, and equivalents can be substituted therefor, without departing from the scope of the present disclosure. The specific embodiments commensurate with the specific application are intended to be illustrative only and not limiting of the scope of the application as set forth in the following claims.

Claims

1. A projection device, comprising a projection host and a telescopic platform, characterized in that, The telescopic platform includes a support base and a movable platform. The movable platform is movably mounted on the support base and is used to carry the projection host. The support base has an internal installation space, and the movable platform is slidably disposed on the side of the support base facing the installation space; The projector includes a cable, and the mobile platform includes a reserved opening through which the cable enters the installation space. A drive device is also provided in the installation space. The drive device is connected to the mobile platform and is used to drive the mobile platform to move between the extended position and the retracted position. When the projector moves with the mobile station, the reserved port restricts the movement of the cable relative to the reserved port.

2. The projection device as described in claim 1, characterized in that, The support base includes a cable outlet, through which the cable extends out of the installation space; When the projector moves with the mobile platform, the cable outlet restricts the movement of the cable relative to the cable outlet.

3. The projection device as described in claim 2, characterized in that, The installation space includes a first installation area and a second installation area that are spaced apart along a direction perpendicular to the movement direction of the projection host. The drive device is located in the first installation area, and when the projection host moves with the mobile platform, the cable bends or extends in the second installation area.

4. The projection device as described in claim 2 or 3, characterized in that, A first limiting part is provided at the reserved opening. The first limiting part is fixed to the cable by a buckle, or the first limiting part is an adhesive, and the cable is bonded to the adhesive after passing through the reserved opening.

5. The projection device as described in claim 4, characterized in that, The length of the cable located within the installation space is greater than the distance between the reserved port and the outlet port.

6. The projection device as described in claim 4, characterized in that, The telescopic platform also includes a protective component, which is located within the installation space; The protective component has a protective channel inside for the projector's cable to pass through, and the protective component bends or stretches as the cable bends or stretches.

7. The projection device as described in claim 6, characterized in that, The protective component is hollow and is fitted over the outside of the cable.

8. The projection device as described in claim 7, characterized in that, One end of the protective component is connected to the support base, and the other end of the protective component is connected to the mobile platform.

9. The projection device as described in any one of claims 1-3, characterized in that, The reserved opening is located behind the projection host along the extension direction of the mobile stage.

10. The projection device as described in claim 9, characterized in that, The cable is used to make electrical connections to the projector.

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