CN215225984U

CN215225984U - Bass speaker cavity and sound box integrated projection television cabinet thereof

Info

Publication number: CN215225984U
Application number: CN202121511518.3U
Authority: CN
Inventors: 刘卫平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-21
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a subwoofer cavity and sound box integrated projection television cabinet, which comprises a subwoofer containing cavity arranged on the projection television cabinet, wherein the subwoofer containing cavity is provided with a leg part for supporting the subwoofer in the subwoofer containing cavity in a hanging manner, and the subwoofer containing cavity is provided with a subwoofer sound transmitting hole, an opening part for supporting the leg part on the ground after passing through, the leg part and the arbitrary cavity wall of the subwoofer containing cavity are arranged at intervals, because the leg part independently supports the subwoofer, the subwoofer is suspended in the subwoofer containing cavity, and the leg part and the subwoofer can not contact the subwoofer containing cavity, the vibration of the subwoofer can not be transmitted to the cavity wall of the subwoofer containing cavity, thereby avoiding that the low-frequency vibration can drive the projector to vibrate when the volume of the subwoofer is increased, leading the projection picture to shake, and further, because the vibration of the subwoofer can not influence the projector, the frequency of making the bass is lower, and the power is stronger, guarantees the bass effect.

Description

Bass speaker cavity and sound box integrated projection television cabinet thereof

Technical Field

The utility model relates to a video and audio technical field of family especially relates to a subwoofer cavity and audio amplifier integration projection TV cabinet thereof.

Background

In the prior art, in order to simplify and beautify houses, a sound box integrated projection television cabinet is already on the market. Conventional projection equipment is typically housed in a heavy wooden cabinet and is equipped with a high-mounted television and performance speakers. Such heavy wooden cabinets typically have sound enclosures to accommodate high performance speakers. Where sound-proof enclosures are utilized on wooden cabinets to prevent most of the sound vibration problems associated with speakers. However, the current market places smaller demands on the size of the television cabinets, and also demands smaller television cabinets and larger screen sizes. Advances in technology have made possible lightweight optical packages and the ability to produce larger television screens. To meet the demand for smaller television cabinets, these improved projection equipment packages are installed in compact, stylized, lightweight television cabinets that are lighter and more aesthetically pleasing than heavy wooden cabinets. But transition from a heavier wooden cabinet to a lightweight television cabinet and place the loudspeakers in the television cabinet. Such vibrations may adversely affect the projection device resulting in unsatisfactory viewing conditions. Specifically, the subwoofer accommodating cavity in the television cabinet is integrated with the television cabinet, and when the volume of the subwoofer is increased, the low-frequency vibration can drive the projection equipment to vibrate, and a projection picture can shake. In addition, in the prior art, one middle sound box is adopted, and when the box body of the middle sound box is integrated with the television cabinet, the middle sound box can only be arranged below the projector and can make sound by being attached to the ground, the sound making position is too low, and the reflected sound through the ground is too strong, so that distortion can be caused.

Patent document US09644960 discloses a device for reducing the vibrations generated by a loudspeaker in a television cabinet, which device reduces the amount of vibrations generated by the loudspeaker transmitted into the television cabinet, while maximizing the sound energy transmitted from the cabinet. The apparatus includes a cabinet for housing at least one speaker mounted in a television cabinet using a vibration damping device. But the loudspeaker is loaded by arranging the shell box, so that the loudspeaker is inevitably applied to a sound insulation and vibration reduction structure, and the manufacturing cost is increased; and patent document CN101686422A discloses a speaker system for bass sounds, the vibration of the whole speaker system is reduced by electrically connecting a pair of or a plurality of speaker units on the back side so as to make the sum of vectors of mutual reaction vibration zero during operation, and a built-in duct type cabinet or a closed type cabinet is installed on the front surface side of each speaker unit to attenuate middle and high range components, the resonance frequency ratio of the sound box and the conduit is set to be 1: 1-1: 3 in the built-in conduit type, the volume ratio of the sound box is set to be 1: 1-1: 3 in the closed type, resonating in the low range, thereby improving bass characteristics, that is, electrically connecting with the sum of vectors when the speaker unit vibrates being zero, inevitably requires very precise mounting and electrical connection processes, complicating manufacturing and mounting.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a subwoofer cavity and audio amplifier integration projection television cabinet thereof to solve the problem that above-mentioned prior art exists, through installation and subwoofer cavity interval separation with the subwoofer, when having avoided the subwoofer volume to increase, low frequency vibration can drive the projector vibration, leads to the projection picture can shake, and then can be lower with the frequency that the bass was done, and power is more powerful, guarantees the bass effect.

In order to achieve the above object, the utility model provides a following scheme: the utility model provides a be applied to projection television cabinet's subwoofer cavity, hold the chamber including setting up the subwoofer on projection television cabinet, subwoofer holds chamber department and is equipped with the unsettled support foot portion of subwoofer in its inside, just subwoofer holds and has seted up bass sound-transparent hole on the chamber, is used for support foot portion passes the opening of back support subaerial, support foot portion with subwoofer holds the arbitrary chamber wall interval setting in chamber.

Preferably, the leg part comprises a plurality of parallel spaced legs, the opening part comprises a plurality of corresponding sub-holes through which the legs pass, and the sub-holes are spaced on the wall of the cavity of the subwoofer accommodating cavity.

Still provide a audio amplifier integration projection TV cabinet, including the projection TV cabinet body, be equipped with projector installation department and two on the projection TV cabinet body be applied to the subwoofer cavity of projection TV cabinet, the projector installation department is located the intermediate position department of the projection TV cabinet body, two the subwoofer cavity symmetry setting of being applied to the projection TV cabinet is in the both sides position department of the projection TV cabinet body.

Preferably, the projection television cabinet body is provided with two front cavities which are used for accommodating front sound boxes, the two front cavities are symmetrically arranged at the positions of two sides of the projection television cabinet body, the front cavity is provided with a front sound transmission port which is arranged forwards, and the subwoofer cavity applied to the projection television cabinet is positioned at the corresponding rear side of the front cavity.

Preferably, the projection television cabinet is further provided with two middle-placed cavities which are used for containing middle-placed sound boxes, the two middle-placed cavities are symmetrically arranged at the positions of two sides of the projection television cabinet body, and each middle-placed cavity is arranged on one side of the corresponding front-placed cavity side by side.

Preferably, each middle-mounted cavity is located at one side of the corresponding front-mounted cavity close to the projector mounting part.

Preferably, the front cavity and the middle cavity are both arranged at an interval with the ground and are located at the top of the cabinet body of the projection television cabinet.

Preferably, the projector mounting part comprises a light outlet turning plate hinged to the cabinet body of the projection television cabinet and a push-pull part arranged at the bottom of the light outlet turning plate in a facing manner, supporting plates used for slidably mounting the push-pull part are arranged on two sides of the push-pull part, and the light outlet turning plate is lapped on the top end of the supporting plates.

Preferably, a plurality of positioning holes and positioning pins capable of being inserted into the positioning holes are arranged between the push-pull part and the support plate, and the positioning holes extend along the moving direction of the push-pull part and are arranged at intervals.

Preferably, the bass sound-transmitting hole is formed in one side, away from the front cavity, of the subwoofer cavity applied to the projection television cabinet, and the opening portion is formed in the bottom of the subwoofer cavity applied to the projection television cabinet.

The utility model discloses for prior art gain following technological effect:

first, subwoofer holds chamber department and is equipped with the branch foot with the unsettled support of subwoofer in its inside, and subwoofer holds and has seted up the bass sound-transparent hole on the chamber, an opening that supports subaerial after being used for the branch foot to pass, the arbitrary chamber wall interval in chamber is held with subwoofer to the branch foot, because the branch foot independently supports subwoofer, make the unsettled inside in subwoofer holds the chamber of subwoofer, and branch foot and subwoofer all can not contact subwoofer and hold the chamber, make the vibration of subwoofer can not transmit on the chamber wall in subwoofer hold the chamber, so when having avoided the subwoofer volume to increase, low-frequency vibration can drive the projector vibration, lead to the projection picture can shake, and then because the vibration of subwoofer no longer influences the projecting apparatus, the frequency that can do the bass is lower, power is stronger, guarantee the subwoofer effect.

The second, the stand bar portion includes the branch foot that a plurality of is parallel and the interval set up, the opening includes a plurality of branch holes that are used for corresponding branch foot to pass, each divides the hole interval to set up on the chamber wall in subwoofer holding chamber, and then with stand bar portion and opening differentiation processing, avoid stand bar portion overall structure too big, and match the opening of corresponding structure, make the structure of opening too big, influence the stability of whole projection TV cabinet body structure, so set up branch foot and branch hole, guarantee the structural strength of the projection TV cabinet body as far as possible.

Third, be equipped with the projector installation department on the projection TV cabinet body and two subwoofers cavities of being applied to the projection TV cabinet, the projector installation department is located the intermediate position department of the projection TV cabinet body, two subwoofers cavity symmetries of being applied to the projection TV cabinet set up the both sides position department at the projection TV cabinet body, make the subwoofer symmetry install the both sides at the projection TV cabinet body, avoid projection TV cabinet body unilateral to send bass or the bass asymmetry that sends, influence the effect that the bass sent.

Fourth, still be equipped with two on the projection TV cabinet and all hold the middle-placed cavity of putting the audio amplifier in, put the cavity symmetry in two and set up the both sides position department at the projection TV cabinet body, put the cavity in each and set up the one side at corresponding leading cavity side by side, avoid prior art to only adopt one to put the audio amplifier in, when leading to its box and TV cabinet to make an organic whole, can only install the below at the projector, paste the ground and play the sound, it is too low to play the sound position, and the reflex sound through ground is too strong, can cause the distortion, that is to say, put the audio amplifier in this application and set up two and constitute in the mirror image, no longer confine the below of projector to, and can improve its mounted position, guarantee the sound effect.

Fifthly, the projector installation department turns over the board including articulating the light-emitting port on the projection TV cabinet body, just to setting up the push-and-pull portion that turns over the board bottom at the light-emitting port, the both sides of push-and-pull portion all are equipped with the backup pad that is used for slidable mounting push-and-pull portion, the light-emitting port turns over the board overlap joint on the top of backup pad, make the light-emitting port turn over the board and can level and smooth when setting level, and avoid relying on the articulated elements alone to drag the effect to its body, and prolonged service life, and need not to install the support part alone again on the cabinet body, lead to the increase of processing material and cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic view of a projection TV cabinet and TV combination;

FIG. 2 is a front view of a projection television cabinet;

FIG. 3 is an assembly view of the rear of the projection television cabinet;

FIG. 4 is an exploded view of the rear of a projection television cabinet;

FIG. 5 is an enlarged view of the projector mount;

FIG. 6 is a top view of a projection television cabinet;

the projection television comprises a projection television cabinet body 1, a front sound box 2, a middle sound box 3, a light outlet turning plate 4, a push-pull part 5, a subwoofer 6, a subwoofer 7, a subwoofer containing cavity 8, a foot part 9, a foot part 10, a front cavity 11, a middle cavity 12, a projector mounting part 13, a support plate 14, a screen 15, a positioning hole 16 and a positioning pin 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1 to 6, a subwoofer cavity applied to a projection television cabinet is provided, which includes a subwoofer receiving cavity 7 disposed on the projection television cabinet, a leg portion 8 for supporting the subwoofer 6 in a suspended manner inside the subwoofer receiving cavity 7 is disposed at the subwoofer receiving cavity 7, a subwoofer transmitting hole is disposed on the subwoofer receiving cavity 7, an opening portion for supporting the leg portion 8 on the ground after passing through the opening portion, the subwoofer transmitting hole is used for transmitting bass generated by the subwoofer 6 to the outside of the cavity of the subwoofer 6, the opening portion can be disposed on the bottom wall of the subwoofer receiving cavity 7, the leg portion 8 directly passes through the opening portion and is supported on the ground, the opening portion can also be disposed on the side wall of the subwoofer receiving cavity 7, the leg portion 8 adopts a bracket structure and the like, is symmetrically disposed on the outer peripheral side of the subwoofer receiving cavity 7 and passes through the opening portion, and is stably supported on the ground, preferably ensuring the compactness of the entire projection television cabinet and the flatness of the outer wall, the opening part is arranged on the bottom wall of the subwoofer containing cavity 7, the bottom of the subwoofer containing cavity 7 or the bottom wall of the whole projection television cabinet is also provided with cabinet feet for supporting the whole cabinet body, and further the support foot part 8 is hidden between the bottom of the cabinet body and the ground, the support foot part 8 and any cavity wall of the subwoofer containing cavity 7 are arranged at intervals, wherein the structure of the opening part is larger than the support foot part 8 and further surrounds the periphery of the support foot part 8, the subwoofer 6 is independently supported by the support foot part 8, so that the subwoofer 6 is suspended in the subwoofer containing cavity 7, and the support foot part 8 and the subwoofer 6 can not contact the subwoofer containing cavity 7, so that the vibration of the subwoofer 6 can not be transmitted to the cavity wall of the subwoofer containing cavity 7, thereby avoiding that the low-frequency vibration can drive the projector to vibrate when the volume of the subwoofer 6 is increased, leading the projection picture to shake, and further, the vibration of the subwoofer 6 can not influence the projector, the frequency of making the bass is lower, and the power is stronger, guarantees the bass effect.

Further, the branch foot 8 includes that a plurality of is parallel and the interval sets up divides foot 10, the opening includes a plurality of branch holes 9 that are used for corresponding branch foot 10 to pass, 9 intervals of each branch hole are seted up on the chamber wall that the subwoofer holds chamber 7, and then with branch foot 8 and opening differentiation processing, avoid 8 overall structure of branch foot too big, and match the opening of corresponding structure, make the structure of opening too big, influence the stability of the 1 structure of the whole projection TV cabinet body, so set up branch foot 10 and branch hole 9, guarantee the structural strength of the projection TV cabinet body 1 as far as possible. In order to simplify the installation of the supporting foot part 8, the bottom wall of the subwoofer accommodating cavity 7 is provided with branch holes 9, the branch feet 10 are in a straight column structure, the branch feet 10 can be vertically placed in the branch holes 9, the inner diameter of each branch hole 9 is larger than the outer diameter of each branch foot 10, the branch feet 10 and any cavity wall of the cavity of the subwoofer 6 are arranged in a separated mode, and therefore installation of the branch feet 10 at the branch holes 9 is facilitated for technicians in the field; preferably, the stability of the support leg part 8 for the subwoofer 6 is ensured, the support leg part 8 comprises three branch legs 10, the positions of the three branch legs 10 form a triangle, and then the branch holes 9 are distributed corresponding to the branch legs 10 to form a structure with triangular distribution; specifically, for further guaranteeing the stable support to subwoofer 6, each top of branch foot 10 is equipped with the backup pad 14 that is used for supporting subwoofer 6, inserts backup pad 14 in branch hole 9 department respectively through branch foot 10, just so remains the position of backup pad 14 in subwoofer holds chamber 7 throughout unchanged, follow-up different types of subwoofer 6 that can directly be changed as required, need not to remove branch foot 10 and backup pad 14 again, has simplified the installation work to subwoofer 6.

As the utility model discloses preferred embodiment, still provide an audio amplifier integration projection television cabinet, including projection television cabinet body 1, be equipped with projector installation department 13 on the projection television cabinet body 1 and two 6 cavitys of subwoofer that are applied to the projection television cabinet, projector installation department 13 is located the intermediate position department of the projection television cabinet body 1, and will influence on the screen 15 of putting in to projection television cabinet body 1 top, two 6 cavitys of subwoofer symmetry settings that are applied to the projection television cabinet are in the both sides position department of the projection television cabinet body 1, make 6 symmetrical both sides at the projection television cabinet body 1 of subwoofer install, avoid the bass asymmetry that the 1 unilateral of the projection television cabinet body sent bass or sent, influence the effect that the bass sent.

Wherein, be equipped with two leading cavitys 11 that all hold leading audio amplifier 2 on the projection TV cabinet body 1, two leading cavitys 11 symmetry sets up the both sides position department at the projection TV cabinet body 1, guarantee the high pitch effect that leading audio amplifier 2 sent, because the direct transmission effect of high pitch is best, the leading sound mouth that sets up forward is seted up to leading cavity 11, leading audio amplifier 2 sends the high pitch and can directly propagate forward, and be applied to 6 cavitys of subwoofer of projection TV cabinet and be located the rear side of corresponding leading cavity 11, make 6 cavitys of subwoofer and leading cavity 11 arrange the setting along the fore-and-aft direction, the length of projection TV cabinet body 1 has been reduced as far as possible, make its structure compacter.

Further, still be equipped with two on the projection TV bench and all hold put in the cavity 12 of putting audio amplifier 3, put in two cavity 12 symmetries and set up the both sides position department at the projection TV cabinet body 1 in the projection TV, each put in the cavity 12 and set up the one side at corresponding leading cavity 11 side by side, avoid prior art to only adopt one to put audio amplifier 3 in, when leading to its box and TV cabinet to make an organic whole, can only install in the below of projector, paste the ground play sound, it is too low to go out the sound position, and the reflex sound through ground is too strong, can cause the distortion, that is to say, put in the audio amplifier 3 in this application and set up two and constitute in the mirror image, no longer confine the below of projector to, and can improve its mounted position, guarantee the sound effect.

Each preferred leading cavity 11 and each middle cavity 12 are respectively and integrally formed with the corresponding leading sound box 2 and the corresponding middle sound box 3, or the leading sound box 2 and the middle sound box 3 can be detachably placed in each corresponding leading cavity 11 and each middle cavity 12, and each preferred middle cavity 12 is positioned at one side of the corresponding leading cavity 11 close to the projector installation part 13, so that the middle position of the projection television cabinet can be closer, and the sound emitting effect of the middle sound box 3 can be ensured to be restored.

Further, leading cavity 11 and leading cavity 12 all set up with ground interval to be located the top position department of the projection TV cabinet body 1, that is to say raise the position of putting cavity 12 and leading cavity 11 on the projection TV cabinet in the middle of as far as, avoid among the prior art to put cavity 12 and install the below at the projector, paste the ground and go out the sound, go out the sound position too low, and the reflection sound through ground is too strong, can cause the distortion.

Preferably, the subwoofer 6 cavity, the middle cavity 12 and the front cavity 11 are arranged side by side along the front-back direction, the bass sound-transmitting hole is arranged at one side of the subwoofer 6 cavity applied to the projection television cabinet far away from the front cavity 11, the sound boxes are stored in the middle cavity 12 and the front cavity 11 and emit high tones, the sound-emitting hole is preferably arranged forward, the sound-emitting holes of the middle cavity 12 and the front cavity 11 are arranged at the front side of the projection television cabinet body 1, the rear part of the bass sound-transmitting hole does not influence the structures of the sound-emitting holes of the middle cavity 12 and the front cavity 11, the sound-emitting effect of the middle cavity 12 and the front cavity 11 is ensured, the reflected low-tone sound-emitting sound has little influence on the sound-emitting effect, and the backward arranged bass sound-transmitting hole can also ensure that the structure is not influenced by the sound-emitting holes of the middle cavity 12 and the front cavity 11 and emits sound backward.

Further, the opening can be seted up on the diapire that the chamber 7 was held to the subwoofer, and foot 8 directly passes the opening and supports subaerial, and the opening can also be seted up on the lateral wall that the chamber 7 was held to the subwoofer, and foot 8 adopts structures such as support, and the symmetry sets up the periphery side that holds chamber 7 at the subwoofer to pass the opening, and the steady support is subaerial, preferably guarantees the compactness of whole projection television cabinet and the planarization of outer wall, and the opening setting is on the diapire that the chamber 7 was held to the subwoofer.

Further, the projector mounting part 13 comprises a light outlet turning plate 4 hinged on the projection television cabinet body 1 and a push-pull part 5 opposite to the bottom of the light outlet turning plate 4, in order to ensure that the position of the projection television cabinet body 1 corresponding to the projector mounting part 13 is flat and beautiful, the light outlet turning plate 4 is connected on the projection television cabinet body 1 by a concealed hinge, two sides of the push-pull part 5 are respectively provided with a support plate 14 for slidably mounting the push-pull part 5, the light outlet turning plate 4 is lapped on the top end of the support plate 14, so that the light outlet turning plate 4 can be flat when being laid, the body is prevented from being pulled by independently depending on an articulated element, the service life is prolonged, and a support part is not required to be independently mounted on the cabinet body, which leads to the increase of processing materials and cost, a specific top plate of the projection television cabinet is lapped on the top of the support plate 14, an opening for accommodating the light outlet turning plate 4 is arranged at the position corresponding to the push-pull part 5, the backup pad 14 is exposed to the open-ended front end, the light-emitting window turns over board 4's structure and opening phase-match, and then can the overlap joint when setting level on backup pad 14, and the light-emitting window turns over board 4 and projection television cabinet roof thickness phase-match, make light-emitting window turn over board 4 can be leveled mutually with the roof, guaranteed the light-emitting window turn over board 4 turn over the back and projection television cabinet roof between the roughness, the trapezoidal light-emitting window of preferred adoption trapezoidal opening and adaptation turns over board 4, trapezoidal open-ended narrow end is located two backup pads 14's inboard, trapezoidal open-ended wide end is located two backup pads 14's the outside, the light-emitting window has been guaranteed to turn over the board 4 lapped validity of light-emitting window and the structural stability of projection television cabinet roof.

Furthermore, a plurality of positioning holes 16 and positioning pins 17 capable of being inserted into the positioning holes 16 are arranged between the push-pull part and the support plate, the positioning holes 16 extend along the moving direction of the push-pull part and are arranged at intervals, the positioning holes 16 can be round holes or square holes or other shapes, the positioning pins 17 are matched with the positioning holes 16 in structure, and are inserted into the corresponding positioning holes 16 through the positioning pins 17 so as to fix the positions of the push-pull part corresponding to the support plate, thereby avoiding the positioning pins 17 of the projector projection distance in the prior art from sliding to cause positioning deviation when being executed in a strip groove structure, wherein two rows of the positioning holes 16 are arranged and can be respectively arranged at two ends of the push-pull part, the positioning pins 17 are fixed on the support plate and can also be respectively arranged on two support plates at two ends of the push-pull part, the positioning pins 17 are fixed on the push-pull part so as to basically position the projection distance of the projector, the positioning is completed by matching the positioning pin 17 with the positioning hole 16, and the positioning pin 17 is inserted into the corresponding positioning hole 16 according to different conditions so as to adjust and position the projection position of the projector.

The adaptability that carries out according to actual demand all is in the protection scope of the utility model.

It should be noted that, as is obvious to a person skilled in the art, the invention is not limited to details of the above-described exemplary embodiments, but can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. The utility model provides a be applied to subwoofer cavity of projection television cabinet, its characterized in that holds the chamber including setting up the subwoofer on the projection television cabinet, subwoofer holds chamber department and is equipped with the unsettled support foot portion of supporting at its inside with the subwoofer, just the subwoofer holds and has seted up bass sound-transparent hole on the chamber, be used for the support foot portion passes the opening that the back support is subaerial, the support foot with the subwoofer holds arbitrary chamber wall interval setting in chamber.

2. The subwoofer cavity applied to the projection television cabinet as claimed in claim 1, wherein the leg portion comprises a plurality of spaced apart legs arranged in parallel, and the opening portion comprises a plurality of spaced apart holes for the respective legs to pass through, each of the spaced apart holes being spaced apart from the wall of the subwoofer cavity.

3. The cabinet for projection television with integrated sound box as claimed in claim 1 or 2, wherein the cabinet for projection television comprises a cabinet body of projection television, the cabinet body of projection television is provided with a projector mounting part and two subwoofer cavities applied to the cabinet for projection television, the projector mounting part is located at the middle position of the cabinet body of projection television, and the two subwoofer cavities applied to the cabinet for projection television are symmetrically arranged at the two sides of the cabinet body of projection television.

4. The cabinet of claim 3, wherein the cabinet body of the projection tv cabinet is provided with two front cavities each accommodating a front speaker, the two front cavities are symmetrically disposed at two sides of the cabinet body of the projection tv cabinet, the front cavities are opened with front sound-transmitting openings disposed forwardly, and the subwoofer cavity applied to the projection tv cabinet is disposed at the rear side of the corresponding front cavity.

5. The cabinet of claim 4, wherein the cabinet body of the projection tv cabinet further comprises two middle cavities each containing a middle speaker, the two middle cavities are symmetrically disposed at two sides of the cabinet body of the projection tv cabinet, and each middle cavity is disposed side by side on one side of the corresponding front cavity.

6. The cabinet of claim 5, wherein each of the center cavities is located on a side of the corresponding front cavity near the projector mount.

7. The cabinet of claim 5, wherein the front cavity and the middle cavity are spaced from the ground and located at a top of the cabinet body of the projection television cabinet.

8. The speaker-integrated projection tv cabinet as claimed in any one of claims 4 to 7, wherein the projector mount includes a light exit flap hinged to the cabinet body of the projection tv cabinet, and a push-pull portion facing the bottom of the light exit flap, and both sides of the push-pull portion are provided with support plates for slidably mounting the push-pull portion, and the light exit flap is overlapped on the top end of the support plates.

9. The cabinet of claim 8, wherein a plurality of positioning holes are formed between the push-pull portion and the supporting plate, and positioning pins are inserted into the positioning holes, and the positioning holes are spaced apart from each other and extend in the moving direction of the push-pull portion.

10. The cabinet-integrated projection tv cabinet of claim 9, wherein the bass sound-transmitting hole is opened at a side of the subwoofer cavity applied to the projection tv cabinet, which is away from the front cavity, and the opening is opened at a bottom of the subwoofer cavity applied to the projection tv cabinet.