CN221278960U - Telescopic platform applied to projection equipment and projection equipment - Google Patents

Abstract

The disclosure provides a telescopic platform applied to projection equipment and the projection equipment. The telescopic platform comprises a supporting seat with an installation space inside; the movable table is used for bearing a projection host of the projection equipment, driving the projection host to move to an extending position when the projection host is started so as to adjust the distance between the projection host and the projection screen, and driving the projection host to move to a retracting position when the projection host is closed; the mobile station is provided with a reserved opening communicated with the installation space in the supporting seat, and the reserved opening is used for allowing a cable of the projection host to pass through and enter the installation space; the cable outlet is arranged on the supporting seat and is communicated with the installation space, the cable outlet is used for allowing a cable of the projection host to pass out and is connected with an external interface, when the mobile station moves, the part of the cable located in the installation space moves along with the movement of the mobile station, the cable is prevented from being clamped between the mobile station and the supporting seat to block the movement of the mobile station, and the movement stability of the mobile station is improved.

Description

Telescopic platform applied to projection equipment and projection equipment

Technical Field

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

Background

The existing projection equipment such as a laser television generally comprises a projection host and a projection screen, when the projection host projects images to the projection screen to enable a user to watch, a certain distance is needed between the projection host and the projection screen to ensure that the images on the projection screen are clear and attractive, when the projection host is placed on a television cabinet, if the width of the television cabinet is insufficient, the projection distance of the projection host cannot be met, a telescopic platform is configured on the television cabinet and is generally provided with a base and a mobile station, the projection host is placed on the mobile station, and the mobile station drives the projection host to move along a direction away from the projection screen relative to the base so as to adjust the projection distance of the projection host and ensure that the projection host projects clear and attractive images on the projection screen.

When the mobile station is used, a plurality of cables (such as a power line, a data line, a network cable and the like) are usually required to be connected to the projection host so as to ensure that the laser television works normally, however, in the process that the mobile station drives the projection host to move, the plurality of cables can move along with the projection host, so that the cables are easy to clamp between the mobile station and the base of the telescopic platform, and the cables prevent the mobile station from driving the projection host to move, so that the use experience of a user is influenced.

Disclosure of utility model

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 device and the projection device.

A first aspect of the present disclosure provides a telescopic platform for use with a projection device, comprising:

The support seat is internally provided with an installation space;

The mobile station is movably arranged on the supporting seat and is used for bearing a projection host of the projection equipment, driving the projection host to move to an extending position when the projection host is started so as to adjust the distance between the projection host and the projection screen, and driving the projection host to move to a retracting position when the projection host is closed;

The mobile station is provided with a reserved opening, the reserved opening is communicated with the installation space in the supporting seat, and the reserved opening is used for allowing a cable of the projection host to pass through and enter the installation space;

The support seat is provided with an outlet which is communicated with the installation space and is used for allowing a cable of the projection host to pass out so as to be connected with an external interface.

Optionally, a protection piece is arranged in the installation space, two ends of the protection piece are respectively connected with the mobile station and the supporting seat, a protection channel for a cable of the projection host to pass through is arranged in the protection piece, and two end channel ports of the protection channel are respectively communicated with the reserved port and the outlet port;

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

Optionally, one end of the protection piece is a mobile end, the other end of the protection piece is a fixed end, the fixed end is fixedly connected with the supporting seat, the fixed end is positioned at the outlet, the mobile end is fixedly connected with the mobile station, and the mobile end is positioned at the reserved opening;

When the movable platform drives the projection host to move between the extending position and the retracting position, the movable end moves along with the movable platform in a direction close to or far from the fixed end so as to enable the protection piece to bend or stretch and deform.

Optionally, the protection piece comprises a tank chain, one end of the tank chain is connected with the mobile station to serve as the mobile end, and the other end of the tank chain is connected with the supporting seat to serve as the fixed end;

The tank chain comprises a plurality of chain units which are connected in sequence, adjacent chain units are connected in a rotating way, and the interior hollows of the chain units are jointly configured into the protection channel;

When the mobile station drives the projection host to move between the extending position and the retracting position, at least part of the chain units rotate relative to each other so that the tank chain bends or stretches and deforms along with the movement of the mobile station.

Optionally, the protecting piece comprises a flexible tube, one end of the flexible tube is connected with the mobile station to serve as the mobile end, and the other end of the flexible tube is connected with the supporting seat to serve as the fixed end;

The flexible pipe is hollow in the flexible pipe to form the protection channel, and the flexible pipe bends or stretches and deforms along with the movement of the mobile station when the mobile station drives the projection host to move between the extending position and the retracting position.

Optionally, a cable constraint track is disposed in the installation space, and the cable constraint track is disposed in an extending manner along a moving direction of the mobile station, so that a cable of the projection host entering the installation space moves along the cable constraint track.

Optionally, a partition board is disposed in the installation space, the partition board extends along the moving direction of the moving platform, and the partition board partitions the installation space into a first installation area and a second installation area;

The first installation area is provided with a driving device, the driving device is connected with the mobile station and used for driving the mobile station to move between the extending position and the retracting position, and a cable entering the projection host in the installation space is located in the second installation area.

Optionally, the reservation mouth department is equipped with first spacing portion, first spacing portion is used for restricting be located reservation mouth department projection host computer's cable relatively the reservation mouth removes.

Optionally, the outlet is provided with a second limiting part, and the second limiting part is used for limiting the cable of the projection host located at the outlet to move relative to the outlet.

A second aspect of the present disclosure provides a projection device comprising a projection host and a telescopic platform as claimed in any one of the preceding claims applied to the projection device;

The projection host is arranged on the mobile station of the telescopic platform, a cable is connected to the projection host, and one end, away from the projection host, of the cable enters the installation space through the reserved opening and penetrates out of the outlet opening to be connected with an external interface.

Optionally, the projection host is placed at the front end part of the mobile station along the extending direction, and the reserved opening is positioned at the rear of the projection host along the extending direction of the mobile station;

Or the projection host is placed at the front end part of the mobile station along the extending direction, and the reserved opening is positioned below the projection host.

Compared with the prior art, the technical scheme provided by the disclosure has the following advantages:

The telescopic platform is used for bearing the projection host of the projection equipment and driving the projection host to switch between an extending position and a retracting position so as to adjust the relative distance between the projection host and a projection screen, thereby ensuring good projection display effect; the cable of the projection host enters the installation space through the reserved opening after the projection host is placed on the mobile station and the cable passes through the installation space from the reserved opening, so that the cable of the projection host can be stored in the installation space, when the mobile station drives the projection host to move, the part of the cable of the projection host, which is positioned in the installation space, can move along with the movement of the mobile station, namely, the cable of the projection host moves in the telescopic platform, compared with the prior art, the cable of the projection host is exposed outside, so that the cable of the projection host cannot influence the movement of the mobile station between the extending position and the retracting position, the cable is prevented from being blocked between the mobile station and the support seat to block the movement of the mobile station when the mobile station moves, and the stability and the smoothness of the movement of the mobile station are improved; the cable hiding function of the projection host is realized, and the situation that the cable of the projection host is exposed outside to cause mess and influence the experience effect of a user is avoided.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments of the present disclosure or the solutions in the prior art, the drawings that are required for the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.

Fig. 1 is a schematic view of a mobile station according to an embodiment of the present disclosure in an extended position;

fig. 2 is a top view of a mobile station according to an embodiment of the present disclosure in an extended position;

fig. 3 is a schematic view illustrating an internal structure of a mobile station according to an embodiment of the present disclosure in an extended position;

FIG. 4 is a top view of the internal structure of a mobile station according to an embodiment of the present disclosure in an extended position;

FIG. 5 is an assembled view of a mobile station and a projection host when the mobile station is in an extended position according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a mobile station in a retracted position according to an embodiment of the disclosure;

fig. 7 is a top view of a mobile station in a retracted position according to an embodiment of the present disclosure;

Fig. 8 is a schematic view of an internal structure of a mobile station according to an embodiment of the present disclosure in a retracted position;

fig. 9 is a top view of the internal structure of the mobile station in a retracted position according to an embodiment of the present disclosure;

FIG. 10 is an assembled view of a mobile station and a projection host when the mobile station is in a retracted position according to an embodiment of the present disclosure;

FIG. 11 is a schematic view of a structure of a mobile station of a projection apparatus according to an embodiment of the present disclosure in an extended position;

Fig. 12 is a schematic view of a structure of a mobile station of the projection apparatus according to an embodiment of the disclosure in a retracted position.

100 Parts of a telescopic platform; 200. a projection host; 201. a cable; 300. a projection screen;

1. A mobile station; 11. reserving a port; 2. a support base; 21. a wire outlet; 3. a driving device; 4. an installation space; 41. a first mounting area; 42. a second mounting area; 421. a partition plate; 5. a protective member; 51. a moving end; 52. a fixed end; 53. a tank chain; 531. chain units.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, a further description of aspects of the present disclosure will be provided below. It should be noted that, without conflict, the embodiments of the present disclosure and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced otherwise than as described herein; it will be apparent that the embodiments in the specification are only some, but not all, embodiments of the disclosure.

Referring to fig. 1 to 12, an embodiment of the disclosure provides a telescopic platform 100 applied to a projection device, which is used for carrying a projection host 200 of the projection device and driving the projection host 200 to switch between an extended position and a retracted position, so as to adjust a relative distance between the projection host 200 and a projection screen 300, thereby ensuring a good projection display effect.

Specifically, the telescopic platform 100 includes a support base 2 and a mobile station 1, and an installation space 4 is provided in the support base 2; the mobile station 1 is movably disposed on the supporting seat 2 and is used for carrying the projection host 200 of the projection device, and driving the projection host 200 to move to the extended position when the projection host 200 is opened so as to adjust the distance between the projection host 200 and the projection screen 300, and driving the projection host 200 to move to the retracted position when the projection host 200 is closed, thereby ensuring that a certain distance is kept between the projection host 200 and the projection screen 300 when the projection host 200 projects so as to ensure that the projection device has a good projection display effect.

The mobile station 1 is provided with a reserved opening 11, the reserved opening 11 is communicated with the installation space 4 in the supporting seat 2, and the reserved opening 11 is used for allowing a cable 201 of the projection host 200 to pass through and enter the installation space 4; the supporting seat 2 is provided with an outlet 21, the outlet 21 is communicated with the installation space 4, and the outlet 21 is used for allowing a cable 201 of the projection host 200 to pass out so as to be connected with an external interface.

It should be understood that, at least, the normal operation of the projection host 200 needs to be connected to an external power supply through a power line, and when the projection host 200 is connected to a device such as a sound device, a data line and an audio line are also needed, the projection host 200 may also be connected to a network line, the cable 201 may be selected as one or a combination of several of the power line, the data line, the audio line and the network line, one end of the cable 201 is connected to the projection host 200, and the other end extends in a direction away from the projection host 200 and is connected to the device such as the power supply, the sound device and the network terminal, and the interface of the device connected to the cable 201 such as the power line, the data line, the audio line and the network line is the external interface; the power line, the data line, the audio line and the network line have long lengths for adapting to various conditions.

When the width of furniture such as a television cabinet for placing the projection host 200 is insufficient, a telescopic platform (which may be referred to as a telescopic platform 100) applied to the projection device is required to be arranged, the projection host 200 is placed on the telescopic platform 100, and after the projection host 200 is started, the mobile platform 1 of the telescopic platform moves to an extended position in a direction away from the projection screen 300, so that the projection host 200 can project a clear image on the projection screen 300, and after the projection host 200 is shut down, the mobile platform 1 of the telescopic platform moves to a retracted position in a direction close to the projection screen 300, so that the space occupied by the whole telescopic platform 100 is reduced.

In the process that the mobile station 1 moves between the extended position and the retracted position, the projection host 200 moves along with the mobile station 1, the cable 201 of the projection host 200 also needs to move together with the projection host 200, the cable 201 is easy to overlap the supporting seat 2 after moving along with the mobile station 1 to the extended position due to the gravity action of the cable 201, when the mobile station 1 moves towards the retracted position, the cable 201 is easy to be blocked in a gap between the mobile station 1 and the supporting seat 2, the mobile station 1 is prevented from moving to the retracted position, and the cable 201 is also easy to be damaged.

According to the telescopic platform provided by the embodiment of the disclosure, the cable 201 connected to the projection host 200 passes through the reserved opening 11 to enter the installation space 4 and passes out of the installation space 4 from the wire outlet 21, so that the cable 201 on the projection host 200 is placed into the installation space 4 of the supporting seat 2, when the projection host 200 moves between the extending position and the retracting position, the reserved opening 11 and the wire outlet 21 can play a limiting role on the cable 201, the cable 201 above the telescopic platform is placed into the installation space 4, and the cable 201 cannot be lapped on the supporting seat 2, namely, the cable 201 cannot be clamped in a gap between the mobile station 1 and the supporting seat 2, so that the movement of the mobile station 1 is blocked.

Specifically, the supporting seat 2 may be selected as a box body structure, the inner space of the box body structure is an installation space 4, the mobile station 1 is slidably disposed on the surface of the supporting seat 2, or the supporting seat 2 may be selected to have a bottom plate and four vertical plates, the bottom plate is in a rectangular structure, the four vertical plates are disposed at four edges of the bottom plate respectively and are connected with each other, so that the space enclosed by the bottom plate and the four vertical plates is used as the installation space 4, and the mobile station 1 is slidably disposed on one side of the bottom plate of the supporting seat 2 facing the installation space 4.

A driving device 3 can be selectively arranged in the supporting seat 2, the driving device 3 is connected with the supporting seat 2, and the output end of the driving device 3 is connected with the mobile station 1, so that the mobile station 1 can move between an extending position and a retracting position; optionally, a sliding block and a sliding rail are arranged in the installation space 4, the sliding rail is arranged on the supporting seat 2 along the direction of the extending position towards the retracting position, the sliding block is in sliding connection with the sliding rail, and the sliding block is connected with the mobile station 1, so that the mobile station 1 is movably arranged on the supporting seat 2.

The mobile station 1 may be a rectangular plate, or may be a box structure sleeved on the supporting seat 2 along the extending position towards the retracting position, and an opening is formed on one side of the box structure, so that when the mobile station 1 moves, the supporting seat 2 can pass through the opening without affecting the movement of the mobile station 1; alternatively, the through hole may be provided on the mobile station 1 as the reserved opening 11, so that the cable 201 may pass through the reserved opening 11 to enter the installation space 4, or alternatively, the edge of the side of the mobile station 1 near the projection screen 300 may be provided with a notch, and the notch extends toward the side far from the projection screen 300, so that the cable 201 may pass through the notch and enter the installation space 4.

The outlet 21 may be selected as a through hole disposed on the support base 2, and 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, and the cable 201 is connected with a power source, a sound device, a network terminal, etc., so that the projection host 200 can work.

The cable 201 in the installation space 4 is arranged along the direction of the extending position towards the retracting position, the length of the part of the cable 201 located in the installation space 4 is larger than the distance between the extending position and the retracting position, the cable 201 can be selectively connected with the cable 201 at the reserved opening 11, for example, the cable 201 is connected with the reserved opening 11 through a clamp or glue, after the cable 201 passes through the reserved opening 11, the reserved opening 11 limits the cable 201 to move relative to the reserved opening 11, the cable 201 is flexible cable and can be bent and deformed, when the mobile station 1 is in the retracting position, the part of the cable 201 located in the installation space 4 is in a bending state, and the cable 201 is gradually stretched in the process of moving the mobile station 1 to the extending position, so that the cable 201 is prevented from being broken by moving the mobile station 1.

Alternatively, the wire outlet 21 may be connected to the cable 201, for example, the cable 201 may be connected to the wire outlet 21 by a clamp or a caster, so that after the cable 201 passes through the wire outlet 21, the wire outlet 21 limits the movement of the cable 201 relative to the wire outlet 21, and the cable 201 may be bent and deformed, so that when the mobile station 1 is in the retracted position, the portion 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 is gradually stretched, so as to avoid the movement of the mobile station 1 to break the cable 201.

It will be appreciated that both the reserved opening 11 and the outlet opening 21 may be selectively connected to the cable 201, so that after the cable 201 passes through the reserved opening 11 and the outlet opening 21, the reserved opening 11 restricts the cable 201 from moving relative to the reserved opening 11, the outlet opening 21 restricts the cable 201 from moving relative to the outlet opening 21, the length of the portion 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 may be bent, so that when the mobile station 1 is in the retracted position, the portion of the cable 201 located in the installation space 4 is in a bent state, and during the process that the mobile station 1 moves to the extended position, the cable 201 gradually extends.

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, so that when the mobile station 1 moves, the cable 201 is bent and deformed in the installation space 4, so that part of the cable 201 can move together with the mobile station 1, and the cable 201 is prevented from being broken when the mobile station 1 moves.

Of course, the cable 201 can move relative to the reserved port 11 and the outlet port 21 by not limiting the gap between the reserved port 11 and the outlet port 21 and the cable 201, the length of the part of the cable 201 located in the installation space 4 is larger than the distance between the extended position and the retracted position, when the mobile station 1 is located at the retracted position, the cable 201 is in a bent state, the length of the cable 201 located in the installation space 4 is smaller than the distance between the extended position and the retracted position when the mobile station 1 is located at the extended position, when the mobile station 1 moves towards the extended position, the cable 201 moves along with the projection host 200, and the part of the cable 201 located outside the outlet port 21 enters the installation space 4 along with the movement of the projection host 200, so that the cable 201 does not obstruct the movement of the mobile station 1 and the cable 201 is not damaged due to the movement of the mobile station 1.

When the telescopic platform applied to the projection device provided by the embodiment of the disclosure is specifically used, 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 passes through the reserved opening 11 to enter the installation space 4, and then passes out of the installation space 4 from the outlet 21 to be connected with components such as a power supply, a sound box, a network terminal and the like; when the projection host 200 is turned off, the mobile station 1 is located at a retracted position, the cable 201 in the installation space 4 is in a bending state, when the projection host 200 is turned on, the mobile station 1 moves from the retracted position to an extended position, the projection host 200 moves along with the mobile station 1 to drive the cable 201 to move, the cable 201 in the installation space 4 is gradually stretched from the bending state, and when the mobile station 1 moves to the extended position, the projection host 200 starts projecting the projection screen 300; when the projection operation of the projection host 200 is completed, the mobile station 1 is moved from the extended position to the retracted position, and during this process, the cable 201 located in the installation space 4 is gradually bent, and the mobile station 1 is moved to the retracted position, and the projection host 200 is turned off.

According to the telescopic platform applied to the projection equipment, the reserved port 11 is arranged on the mobile station 1, the wire outlet 21 is arranged on the supporting seat 2, so that after the projection host 200 is placed on the mobile station 1, the wire 201 of the projection host 200 passes through the reserved port 11 and enters the installation space 4, and the wire 201 passes out of the installation space 4 from the wire outlet 21, and the telescopic platform is arranged in such a way that the wire 201 of the projection host 200 can be contained in the installation space 4, when the mobile station 1 drives the projection host 200 to move, the part of the wire 201 of the projection host 200 in the installation space 4 can move along with the movement of the mobile station 1, namely, the wire 201 of the projection host 200 moves in the telescopic platform 100, compared with the prior art, the wire 201 of the projection host 200 is exposed outside, so that the wire 201 of the projection host 200 does not influence the movement of the mobile station 1 between the extending position and the retracting position, the wire 201 is prevented from moving between the mobile station 1 and the supporting seat 2, and the movement of the mobile station 1 is prevented, and the stability and smoothness of the movement of the mobile station 1 are improved; the hiding function of the cable 201 of the projection host 200 is realized, so that the cable 201 of the projection host 200 is prevented from being exposed outside, thereby causing mess of the cable and affecting the experience effect of a user.

Referring to fig. 1, 2, 3, 4, 8 and 9, in some embodiments, a protection member 5 is disposed in the installation space 4, two ends of the protection member 5 are respectively connected with the mobile station 1 and the support base 2, a protection channel through which a cable 201 of the projection host 200 passes is disposed in the protection member 5, two end channel ports of the protection channel are respectively communicated with the reserved port 11 and the outlet port 21, and the arrangement is such that the cable 201 of the projection host 200 can pass through the protection channel on the protection member 5 after entering the installation space 4 of the support base 2 through the reserved port 11, and then pass out from the outlet port 21; when the mobile station 1 drives the projection host 200 to move, the end of the protecting piece 5 connected with the mobile station 1 moves along with the mobile station 1, and the protecting piece 5 is deformed, so that the cable 201 of the projection host 200 positioned in the protecting channel is protected by the protecting piece 5.

Specifically, the protection piece 5 may be a flexible hose, the interior of the hose is hollow, so that the space inside the hose is used as a protection channel, the hose is arranged in the installation space 4, one end of the hose faces the reserved opening 11, the other end faces the outlet 21, a buckle is optionally arranged in the installation space 4 on the supporting seat 2, one end of the hose is connected with the buckle, the other end of the hose is connected with the mobile station 1, a pair of sides of the mobile station 1, which faces the supporting seat 2, is optionally provided with a buckle, the end of the hose is clamped with the buckle of the mobile station 1, the end of the hose is bonded with the mobile station 1 through glue, after the cable 201 enters the installation space 4 from the reserved opening 11, the cable 201 enters the protection channel from one end of the hose, which is close to the outlet 21, of the cable 201 penetrates out of the protection channel, and then penetrates out of the installation space 4 from the outlet 21.

Of course, the protection piece 5 can also be selected to be hollow tank chain, the one end and the supporting seat 2 of tank chain are connected, the other end is connected with the mobile station 1, can select to use the bolt to be connected tank chain and supporting seat 2 and mobile station 1, of course also can select to use the truckle to be connected tank chain and supporting seat 2 and mobile station 1, the one end of tank chain sets up towards reservation mouth 11, the other end sets up towards outlet 21, the inside space of tank chain is the protection passageway, the cable 201 that is located in installation space 4 gets into the protection passageway from the one end that tank chain is close to reservation mouth 11, and wear out the protection passageway from the one end that tank chain is close to outlet 21.

The distance between the movable table 1 and the retracted position when the distance between the movable table 1 and the movable table 1 is the maximum is the limit position, the limit position may be selected as the extended position, the extended position may be selected between the limit position and the retracted position, the length of the protection member 5 may be selected to be greater than or equal to the distance between the limit position and the retracted position, so that the protection member 5 is in a bent state when the movable table 1 is in the retracted position, the protection member 5 gradually extends to match the bent state of the cable 201 in the protection passage when the movable table 1 moves toward the extended position, the protection member 5 is in a fully extended state when 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 still in the bent state when the length of the protection member 5 is greater than the distance between the limit position and the retracted position.

The telescopic platform is arranged, the telescopic platform further comprises the protecting piece 5, the protecting piece 5 is provided with a protecting channel and can be bent and deformed, two ends of the protecting piece 5 are respectively connected with the mobile station 1 and the supporting seat 2, the protecting piece 5 can be bent and stretched along with the movement of the mobile station 1, so that a cable 201 positioned in the installation space 4 can be positioned in the protecting channel of the protecting piece 5, the cable 201 is prevented from being contacted with other parts of the telescopic platform in the installation space 4 when the cable 201 is bent and stretched along with the movement of the mobile station 1, the bending and stretching deformation of the cable 201 is prevented, the cable 201 can be prevented from being knotted in the bending and stretching processes, and the stability of the cable 201 positioned in the installation space 4 and the smoothness of movement are improved.

Referring to fig. 1, 3, 4, 8 and 9, in some embodiments, one end of the protection member 5 is a moving end 51, the other end is a fixed end 52, the fixed end 52 is fixedly connected with the support base 2, the fixed end 52 is located at the outlet 21, the moving end 51 is fixedly connected with the mobile station 1, and the moving end 51 is located at the reserved opening 11;

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 along with the mobile station 1 in a direction approaching or separating from the fixed end 52, so that the protection member 5 is bent or stretched.

Specifically, the reservation opening 11 may be selectively provided with a connecting piece extending toward the installation space 4, and the moving end 51 is fixedly connected with one end of the connecting piece away from the reservation opening 11, so that the moving end 51 is located at a position close to the reservation opening 11, or, of course, the moving end 51 may be selectively fixedly connected with one surface of the mobile station 1, which faces the supporting seat 2, and the moving end 51 is located at a position close to the reservation opening 11.

The inner wall of the installation space of the supporting seat 2 may be optionally provided with a vertical plate, the vertical plate is located at a position close to the outlet 21, the fixed end 52 is fixedly connected with the vertical plate, the fixed end 52 may be optionally fixedly connected with the vertical plate by using a bolt or a riveting manner, or of course, the fixed end 52 may be optionally fixedly connected with the inner wall of the supporting seat 2 by using a bolt or a rivet, and the fixed end 52 is located at a position close to the outlet 21.

When the movable table 1 moves from the retracted position toward the extended position, the movable end 51 moves in a direction away from the fixed end 52, the distance between the movable end 51 and the fixed end 52 gradually increases, the protector 5 gradually extends, and when the movable table 1 moves from the extended position toward the retracted position, the movable end 51 moves in a direction approaching the fixed end 52, the distance between the movable end 51 and the fixed end 52 gradually decreases, and the protector 5 gradually bends.

Optionally, the moving end 51 is provided with a penetrating port, the penetrating port is communicated with the protection channel, the moving end 51 is close to the reserved port 11, so that the cable 201 penetrating through the reserved port 11 can enter the protection channel through the penetrating port, the fixed end 52 is provided with a penetrating port, the penetrating port is communicated with the protection channel, the cable 201 in the protection channel can penetrate out of the penetrating port, and the cable 201 bends and stretches along with the protection piece 5 in the protection piece 5.

Through setting up the one end of protection piece 5 and being movable end 51, the other end is stiff end 52, stiff end 52 and supporting seat 2 fixed connection, movable end 51 and movable platform 1 fixed connection, when making movable end 51 remove along with movable platform 1, be close to each other and keep away from between movable end 51 and the stiff end 52, so that protection piece 5 bends and stretches, and stiff end 52 is located the position that is close to outlet 21, movable end 51 is located the position that is close to reserved mouth 11, make things convenient for cable 201 to penetrate the protection passageway from movable end 51 after penetrating from reserved mouth 11, make things convenient for cable 201 to wear out installation space 4 from outlet 21 after wearing out from stiff end 52, the reasonable position that sets up movable end 51 and stiff end 52, make things convenient for cable 201 to wear out from outlet 21 after passing the protection passageway of protection piece 5.

Referring to fig. 1, 2, 3, 4, 6, 8, and 9, in some embodiments, the protector 5 includes a tank chain 53, one end of the tank chain 53 being connected to the mobile station 1 as a moving end 51, the other end being connected to the support base 2 as a fixed end 52; the tank chain 53 includes a plurality of chain units 531 connected in sequence, the adjacent chain units 531 are connected in rotation, and the interior hollows of the plurality of chain units 531 are commonly constructed into a protection channel; when the mobile station 1 moves the projection main unit 200 between the extended position and the retracted position, at least part of the chain units 531 are rotated with respect to each other so that the tank chain 53 is bent or stretched as the mobile station 1 moves.

Specifically, it is possible to select a hollow structure in which the chain units 531 are rectangular, both ends of the chain units 531 are provided with rotation holes, and after the plurality of chain units 531 are arranged in a straight line, the rotation holes of the adjacent two chain units 531 coincide, the two chain units 531 are rotationally connected by using rivets to pass through the rotation holes of the adjacent two chain units 531, and the adjacent two chain units 531 among the plurality of chain units 531 are all rotationally connected, so that the tank chain 53 is bent and unfolded by the relative rotation between the plurality of chain units 531.

Because the chain unit 531 is of a hollow structure, after the plurality of chain units 531 are sequentially connected along a straight line, the spaces in the plurality of chain units 531 form a protection channel together, the tank chain 53 is also penetrated by the protection channel, a connecting piece extending towards the supporting seat 2 can be selected to be arranged on the mobile station 1, one end of the tank chain 53 is connected with one end of the connecting piece far away from the mobile station 1 to serve as the mobile end 51, and of course, one end of the tank chain 53 can also be selected to be connected with one end of the mobile station 1 towards the supporting seat 2 to serve as the mobile end 51; the other end of the tank chain 53 is fixedly connected with the supporting base 2 as a fixed end.

When the mobile station 1 is in the retracted position, the tank chain 53 is in a curved state, when the mobile station 1 moves toward the extended position, the distance between the movable end 51 and the fixed end 52 increases, the tank chain 53 gradually expands, and when the mobile station 1 moves toward the retracted position, the distance between the movable end 51 and the fixed end 52 decreases, the tank chain 53 gradually bends, and the cable 201 bends and expands in the tank chain 53 together with the tank chain 53.

Through setting up protection piece 5 and including tank chain 53, tank chain 53 includes a plurality of chain units 531, chain unit 531 is hollow structure, a plurality of chain units 531 connect gradually, rotate between two adjacent tank chains 53 and connect, make tank chain 53 can crooked and extend, and the inside of tank chain 53 is formed with the protection passageway, because every chain unit 531 of tank chain 53 all has certain structural strength, when consequently cable 201 is located tank chain 53 inside, tank chain 53 has better guard action to cable 201, and the bending of tank chain 53 and the mutual rotation of extending a plurality of chain units 531, the motion estimation that can avoid tank chain 53 when crooked and extending keeps stable, other parts in the flexible platform produce the interference when avoiding tank chain 53 to crooked.

In other embodiments, the protector 5 comprises a flexible tube, one end of which is connected to the mobile station 1 as a mobile end 51, and the other end of which is connected to the support base 2 as a fixed end 52; the flexible tube is hollow and forms a protection channel, and when the mobile station 1 drives the projection host 200 to move between the extending position and the retracting position, the flexible tube bends or stretches and deforms along with the movement of the mobile station 1.

Specifically, the flexible pipe may be a flexible pipe capable of being bent, a buckle may be disposed at a position on the mobile station 1 near the reserved opening 11, so that one end of the flexible pipe may be clamped with the buckle of the mobile station 1 to serve as the mobile end 51, a buckle is disposed at a position on the inner wall of the installation space 4 of the supporting seat 2, which is clamped with the wire outlet 21, and the other end of the flexible pipe is clamped with the buckle of the supporting seat 2 to serve as the fixed end 52.

When the movable table 1 is in the retracted position, the flexible tube is in a bent state, when the movable table 1 moves toward the extended position, the distance between the movable end 51 and the fixed end 52 increases, the flexible tube gradually stretches, and when the movable table 1 moves toward the retracted position, the distance between the movable end 51 and the fixed end 52 decreases, the flexible tube gradually bends, and the cable 201 bends and stretches together with the flexible tube in the flexible tube.

Through setting up protection piece 5 and including the flexible pipe, the inside of flexible pipe is equipped with the protection passageway that runs through the flexible pipe to the both ends of flexible pipe are connected in mobile station 1 and supporting seat 2 respectively, and the cost of manufacture of flexible pipe is low, can retrain cable 201 in installation space 4, avoids cable 201 at the in-process that mobile station 1 removed and the part mutual interference in the flexible platform, reduces flexible platform's cost of manufacture, promotes the stability that cable 201 removed in installation space 4.

In some embodiments, a cable restraining rail (not shown) is provided in the installation space 4, and the cable restraining rail is extended in the moving direction of the mobile station 1, so that the cable 201 of the projection host 200 entering the installation space 4 moves along the cable restraining rail.

Specifically, the groove extending along the extending position toward the retracting position can be set on the inner wall of the installation space 4 to serve as a cable restraining track, 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 restraining track when being bent and stretched along with the movement of the mobile station 1, and the cable 201 can be prevented from interfering with other parts in the telescopic platform due to bending and stretching along with the movement of the mobile station 1.

Of course, two parallel vertical plates may be disposed on the inner wall of the side of the installation space 4 facing the mobile station 1, the two vertical plates extending in the direction of the extended position toward the retracted position, the space between the two vertical plates forming a cable-restraining track, and the portion of the cable 201 located in the installation space 4 being located in the cable-restraining track, so that the cable 201 is located in the cable-restraining track when being bent and stretched along with the movement of the mobile station 1.

By arranging the cable restraining rails in the installation space, the cables 201 are positioned in the cable restraining rails when being bent and stretched along with the movement of the mobile station 1, and the cables 201 can be prevented from interfering with other parts in the telescopic platform due to bending and stretching along with the movement of the mobile station 1, so that the stability of the movement track of the cables 201 in the installation space 4 is improved.

Referring to fig. 1, 2, 3, 4, 8, and 9, in some embodiments, a partition 421 is provided in the installation space 4, the partition 421 being provided to extend in the moving direction of the mobile station 1, the partition dividing the installation space into a first installation area 41 and a second installation area 42;

The first mounting area 41 is provided with a driving means 3, which driving means 3 is connected to the mobile station 1 for driving the mobile station 1 between an extended position and a retracted position, and a cable 201 of the projection host 200 entering the mounting space is located in the second mounting area 42.

Specifically, the first mounting region 41 and the second mounting region 42 may be rectangular regions, and the first mounting region 41 and the second mounting region 42 may extend in the direction from the retracted position toward the extended position, and one side edges of the first mounting region 41 and the second mounting region 42 that are close to each other may be selected to be bonded to each other, or the first mounting region 41 and the second mounting region 42 may be selected to be disposed at intervals.

Optionally, at least one side edge of the second mounting area 42 near the first mounting area 41 is provided with a partition 421, and the partition 421 extends in a direction from the retracted position toward the extended position.

Specifically, the partition 421 may be selectively provided on the side of the support base 2 facing the mobile station 1, the partition 421 may be selectively formed as a rectangular plate, the partition 421 may be selectively connected to the support base 2 by bolts, or the partition 421 may be selectively connected to the support base 2 by rivets.

The number of the spacers 421 may be selected to be one, and the spacers 421 may be disposed at the edge of the second mounting area 42 near the first mounting area 41, or the number of the spacers 421 may be selected to be two, and the two spacers may be disposed at the edge of the second mounting area 42 near the first mounting area 41 and far from the first mounting area 41.

The driving device 3 can be selected as a motor or an air cylinder, the driving device 3 is fixedly connected with the supporting seat 2, the output end of the driving device 3 is connected with the mobile station 1, and the driving device 3 can drive the mobile station 1 to move the mobile station 1 between the extending position and the retracting position.

Since the driving device 3 is in a moving state when the driving mobile station 1 is driven to move, in order to avoid interference between the cable 201 located in the installation space 4 and the driving device 3, the driving device 3 is installed in the first installation area 41, the cable 201 is located in the second installation area 42, and the reserved port 11 and the wire outlet 21 are both arranged opposite to the second installation area 42; the protective element 5 may optionally be arranged in the second installation area 42, so that it is ensured that the cables 201 in the installation space 4 are all located in the second installation area 42. When the mobile station 1 moves, the driving device 3 outputs a driving force to the mobile station 1 in the first mounting area 41, and the cable 201 bends and stretches in the second mounting area 42.

By arranging the partition 421 in the installation space 4, the partition 421 is arranged to extend along the moving direction of the mobile station 1, the installation space is divided into the first installation area 41 and the second installation area 42 by the partition 421, when the cable 201 in the installation space 4 is positioned in the second installation area 42, and the mobile station 1 is moved, the driving device 3 outputs driving force to the mobile station 1 in the first installation area 41, the cable 201 is bent and stretched in the second installation area 42, interference of the cable 201 in the driving device 3 is avoided, the positions of the driving device 3 and the cable 201 in the installation space 4 are reasonably distributed, and the moving safety of the cable 201 in the installation space 4 is improved; and the spacer 421 prevents the cable 201 from being excessively long in the second mounting region 42 to enter the first mounting region 41 when being bent, improving the stability of the cable 201 in the second mounting region 42 when being bent and stretched.

Referring to fig. 1 to 4 and 6 to 9, in some embodiments, a first limiting portion is provided at the reserved opening 11, and the first limiting portion is used to limit the cable 201 of the projection host 200 located at the reserved opening 11 to move relative to the reserved opening 11.

Specifically, a buckle may be selectively disposed on an inner wall of the reserved opening 11 to serve as a first limiting portion, so that after the cable 201 passes through the reserved opening 11, the buckle is clamped with the cable 201, and the first limiting portion limits the cable 201 to move relative to the reserved opening 11; of course, it is also possible to set an adhesive at the reserved opening 11 as the first limiting portion, so that the cable 201 passes through the reserved opening 11 and then is adhered to the adhesive, thereby limiting the movement of the cable 201 relative to the reserved opening 11.

Through setting up the first spacing portion that is used for restricting cable 201 relative reservation mouth 11 removal in reservation mouth 11 department, make cable 201 pass behind reservation mouth 11 and connect in first spacing portion to guarantee that cable 201 moves along with reservation mouth 11 jointly when mobile station 1 removes, when avoiding cable 201 to receive great frictional force in installation space 4, cable 201 breaks away from the connection with projection host 200, guaranteed that cable 201 makes along with mobile station 1 removal make with projection host 200 keep being connected, and promoted the stability of cable 201 position on the telescopic platform.

Referring to fig. 1 to 4 and 6 to 9, in some embodiments, a second limiting portion is provided at the outlet 21, and the second limiting portion is used to limit the movement of the cable 201 of the projection host 200 located at the outlet 21 relative to the outlet 21.

Specifically, a buckle may be selectively disposed on an inner wall of the outlet 21 to serve as a first limiting portion, so that after the cable 201 passes through the outlet 21, the buckle is clamped with the cable 201, and thereby the second limiting portion limits the cable 201 to move relative to the outlet 21; of course, it is also possible to selectively set an adhesive at the outlet 21 as the first limiting portion, so that the cable 201 passes through the outlet 21 and then is adhered to the adhesive, thereby limiting the movement of the cable 201 relative to the outlet 21.

By providing 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 that the situation that the moving distance of the moving table 1 is limited due to insufficient length of the moving table 1 for moving the cable 201 relative to the outlet 21 is avoided.

In some embodiments, the reserved opening 11 may be optionally provided with a first limiting portion for limiting the movement of the cable 201 relative to the reserved opening 11, and the outlet opening 21 is provided with a second limiting portion for limiting the movement of the cable 201 relative to the outlet opening 21, so that both ends of the cable 201 in the installation space 4 are limited, so as to improve the stability of the cable 201 in the installation space 4 during movement.

Referring to fig. 5, 10, 11 and 12, further embodiments of the present disclosure provide a projection device including a projection host 200 and a telescoping platform 100 as described in any of the above embodiments for use with a projection device.

The projection host 200 is placed on the mobile station 1 of the telescopic platform 100, a cable 201 is connected to the projection host 200, and one end of the cable 201, far away from the projection host 200, enters the installation space 4 through the reserved port 11 and passes out of the outlet port 21 to be connected with an external interface.

Specifically, the projection host 200 may be selected to be a laser television or an ultra-short focal projector, and the cable 201 is plugged into the surface of the projection host 200, where the cable 201 is used to connect with external interfaces of components such as a power supply, a sound box, a network terminal, etc. so that the projection host 200 works normally; an electrical connection socket is optionally provided on the projection host 200, so that the cable 201 is plugged into the electrical connection socket, and electrical connection between the cable 201 and the projection host 200 is realized; one end of the cable 201, which is far away from the projection host 200, enters the installation space 4 through the reserved port 11, and the cable 201 passes out of the outlet port 21 through the outlet port 21, and then the cable 201 is connected with a power supply, a sound box, a network terminal and other components.

By arranging the projection device comprising the projection host 200 and the telescopic platform 100 according to any one of the embodiments, the cable 201 of the projection host 200 can enter the installation space 4 through the reserved opening 11 and can pass out of the outlet opening 21 through the outlet opening 21, so that the part of the cable 201 close to the telescopic platform is stored in the telescopic platform, the situation that the cable 201 is blocked between the mobile station 1 and the supporting seat 2 to block the movement of the mobile station 1 when the mobile station 1 moves is avoided, and the stability and safety of the movement of the mobile station 1 are improved.

Referring to fig. 5 and 10, in some embodiments, the projection host 200 is disposed at a front end portion of the mobile station 1 in the extension direction, and the reserved opening 11 is located at a rear of the projection host 200 in the extension direction of the mobile station 1.

In other embodiments, the projection host 200 is disposed at a front end portion of the mobile station 1 along the extending direction, and the reserved opening 11 is located below the projection host 200.

The direction in which the mobile station 1 moves toward the extended position may be selected as the extended direction, the extended direction is a direction away from the projection screen 300, the projection host 200 is placed at a front end portion of the mobile station 1 in the extended direction, which is a position of the mobile station 1 away from the projection screen 300, and the rear of the projection host 200 in the extended direction of the mobile station 1 is a position of the mobile station 1 close to the projection screen 300.

The bottom of the projection host 200 facing to one side of the projection screen 300 can be selectively provided with an inserting port, the cable 201 naturally drops after being connected with the inserting port, the reserved port 11 is positioned at the rear of the extending direction of the mobile station 1, so that the dropped cable 201 is close to the reserved port 11, the cable 201 can conveniently pass through the reserved port 11, and the inserting port is arranged on the side of the projection host 200, so that the cable 201 is conveniently electrically connected with the inserting port of the projection host 200.

Of course, an interface may be disposed at the bottom of the projection host 200, such that the interface is disposed towards the mobile station 1, and the reserved opening 11 is disposed below the projection host 200, and the cable 201 naturally drops after being connected with the interface and is disposed opposite to the reserved opening 11, so that the cable 201 enters the reserved opening 11 from the bottom of the projection host 200, the effect of shielding the cable 201 by the projection host 200 can be achieved, and the effect of the look and feel of the projection host 200 can be improved.

When the projection host 200 is installed, the plug-in port of the cable 201 and the projection host 200 can be selected to be separated, the end of the cable 201 connected with the projection host 200 firstly passes through the outlet 21 to enter the installation space 4, then passes through the reserved port 11 to pass out of the installation space 4, and finally is electrically connected with the plug-in port of the projection host 200, so that the installation operation is simplified; of course, the reserved opening 11 may also be provided with a notch extending to the edge of the mobile station 1, the outlet opening 21 is provided with a notch extending to the edge of the supporting seat 2, and when the connecting parts at two ends of the cable 201 are large, the middle part of the cable 201 can enter the reserved opening 11 and the outlet opening 21 respectively through the notch, so that part of the cable 201 close to the telescopic platform 100 is accommodated in the telescopic platform 100.

When the projection device provided by the embodiment of the disclosure is specifically used, the telescopic platform is installed on the television cabinet, the projection host 200 is placed on the mobile station 1, the cable 201 is electrically connected with the projection host 200, the cable 201 passes through the reserved port 11 to enter the installation space 4, the cable 201 enters the protection channel from the mobile end 51 of the tank chain 53 and the fixed end 52 extends out of the protection channel, and then the cable 201 passes out of the installation space 4 from the wire outlet 21, so that the cable 201 is connected with devices such as a power supply, a sound box, a network terminal and the like, and the projection host 200 can be normally used.

When the projection host 200 is turned off, the mobile station 1 is in a retracted position, the tank chain 53 is in a bent state, the cable 201 in the installation space 4 is bent along with the tank chain 53, after the projection host 200 is started, the driving device 3 drives the mobile station 1 to move towards an extended position, the distance between the movable end 51 and the fixed end 52 of the tank chain 53 is increased, the tank chain 53 is gradually extended, the cable 201 is gradually extended along with the tank chain 53, and after the projection host 200 is moved to the extended position, the projection host 200 performs projection operation on the projection screen 300.

After the projection of the projection host 200 is completed, the mobile station 1 moves toward the retracted position, the distance between the movable end 51 and the fixed end 52 of the tank chain 53 decreases, the tank chain 53 is gradually bent, the cable 201 is gradually bent along with the tank chain 53, the mobile station 1 moves to the retracted position, and the projection host 200 is turned off; during the movement of the mobile station 1 between the extended position and the retracted position, a portion of the cable 201 close to the telescopic platform is housed in the tank chain 53 of the installation space 4, avoiding the cable 201 from obstructing the movement of the mobile station 1.

It should be noted that in this 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 such 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 may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The foregoing is merely a specific embodiment of the disclosure to enable one skilled in the art to understand or practice the disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown and described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A telescopic platform for use with a projection device, comprising:

The support seat is internally provided with an installation space;

The mobile station is movably arranged on the supporting seat and is used for bearing a projection host of the projection equipment, driving the projection host to move to an extending position when the projection host is started so as to adjust the distance between the projection host and the projection screen, and driving the projection host to move to a retracting position when the projection host is closed;

The mobile station is provided with a reserved opening, the reserved opening is communicated with the installation space in the supporting seat, and the reserved opening is used for allowing a cable of the projection host to pass through and enter the installation space;

The support seat is provided with an outlet which is communicated with the installation space and is used for allowing a cable of the projection host to pass out so as to be connected with an external interface.

2. The telescopic platform applied to the projection equipment according to claim 1, wherein a protection piece is arranged in the installation space, two ends of the protection piece are respectively connected with the mobile station and the supporting seat, a protection channel for a cable of the projection host to pass through is arranged in the protection piece, and two end channel ports of the protection channel are respectively communicated with the reserved port and the outlet port;

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

3. The telescopic platform applied to the projection device according to claim 2, wherein one end of the protection member is a movable end, the other end is a fixed end, the fixed end is fixedly connected with the supporting seat, the fixed end is positioned at the outlet, the movable end is fixedly connected with the movable platform, and the movable end is positioned at the reserved opening;

When the movable platform drives the projection host to move between the extending position and the retracting position, the movable end moves along with the movable platform in a direction close to or far from the fixed end so as to enable the protection piece to bend or stretch and deform.

4. The telescopic platform applied to a projection apparatus according to claim 3, wherein the protector includes a tank chain having one end connected to the mobile station as the moving end and the other end connected to the support base as the fixed end;

The tank chain comprises a plurality of chain units which are connected in sequence, adjacent chain units are connected in a rotating way, and the interior hollows of the chain units are jointly configured into the protection channel;

When the mobile station drives the projection host to move between the extending position and the retracting position, at least part of the chain units rotate relative to each other so that the tank chain bends or stretches and deforms along with the movement of the mobile station.

5. A telescopic platform for a projection device according to claim 3, wherein the protector comprises a flexible tube, one end of the flexible tube being connected to the mobile station as the moving end, the other end being connected to the support base as the fixed end;

The flexible pipe is hollow in the flexible pipe to form the protection channel, and the flexible pipe bends or stretches and deforms along with the movement of the mobile station when the mobile station drives the projection host to move between the extending position and the retracting position.

6. The telescopic platform applied to a projection apparatus according to claim 1, wherein a cable restraint rail is provided in the installation space, the cable restraint rail being provided to extend in a moving direction of the mobile station so that a cable of the projection host entering the installation space moves along the cable restraint rail.

7. The telescopic platform applied to a projection apparatus according to any one of claims 1 to 6, wherein a partition is provided in the installation space, the partition being provided to extend in a moving direction of the moving stage, the partition dividing the installation space into a first installation area and a second installation area;

The first installation area is provided with a driving device, the driving device is connected with the mobile station and used for driving the mobile station to move between the extending position and the retracting position, and a cable entering the projection host in the installation space is located in the second installation area.

8. The telescopic platform for projection equipment according to any one of claims 1 to 6, wherein a first limiting part is arranged at the reserved opening, and the first limiting part is used for limiting the cable of the projection host positioned at the reserved opening to move relative to the reserved opening;

And/or the outlet is provided with a second limiting part, and the second limiting part is used for limiting the cable of the projection host positioned at the outlet to move relative to the outlet.

9. A projection device comprising a projection host and a telescopic platform according to any of claims 1 to 8 for use in a projection device;

The projection host is arranged on the mobile station of the telescopic platform, a cable is connected to the projection host, and one end, away from the projection host, of the cable enters the installation space through the reserved opening and penetrates out of the outlet opening to be connected with an external interface.

10. The projection apparatus according to claim 9, wherein the projection main body is placed at a front end portion of the mobile station in a projecting direction, and the reserve opening is located behind the projection main body in the projecting direction of the mobile station;

Or the projection host is placed at the front end part of the mobile station along the extending direction, and the reserved opening is positioned below the projection host.