CN113359377B

CN113359377B - Projector with a light source

Info

Publication number: CN113359377B
Application number: CN202110549374.9A
Authority: CN
Inventors: 李志�; 金凌琳; 雷钧杰; 邱昌盛
Original assignee: Dangqu Network Technology Hangzhou Co Ltd
Current assignee: Dangqu Network Technology Hangzhou Co Ltd
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2023-03-14
Anticipated expiration: 2041-05-20
Also published as: CN113359377A

Abstract

The invention discloses a projector, comprising: the device comprises a shell, a first fixing piece and a second fixing piece, wherein the shell is provided with an accommodating cavity, the side wall of the shell is provided with a through hole, the bottom wall of the shell is provided with a through hole, and the through hole are communicated with the accommodating cavity; the decorative plate comprises a plate body and a clamping piece connected to the plate body, the plate body is detachably mounted on the outer wall surface of the shell, and the clamping piece extends into the through hole; the support legs comprise foot pads and support columns connected to the foot pads, the foot pads are arranged at the bottom of the shell, and the support columns can be movably inserted into the through holes so as to extend into or withdraw from the accommodating cavities; the movable piece is movably arranged in the accommodating cavity and covers the through hole so as to be pushed to a first position by the support column extending into the accommodating cavity or move to a second position along with the support column retreating out of the accommodating cavity; the movable part is provided with a limiting bulge close to the via hole, and when the movable part is positioned at the first position, the limiting bulge is positioned between the clamping piece and the via hole; when the moving part is at the second position, the limiting bulge avoiding position clamping piece. The projector can improve the structural stability of the decorative plate.

Description

Projector apparatus

Technical Field

The invention relates to the technical field of projection equipment, in particular to a projector.

Background

The projector can accumulate dust inside after long-term use, and the dust not only can influence the heat dissipation of projector, still can influence the normal operating of projector. Among the correlation technique, set up to detachable construction through the decorative board with the projector and realize the dust removal to the projector inside, for the dismouting of decorative board, realize the cooperation of dismantling of decorative board and projector shell through joint structure usually, however when dismantling the decorative board, can act on the decorative board earlier for the effort of separation joint structure, because the structure of decorative board is thinner, consequently easy atress warp or damage, has reduced the structural stability of decorative board.

Disclosure of Invention

The invention mainly aims to provide a projector, and aims to solve the technical problem of ensuring the structural stability of a decorative plate when the decorative plate is disassembled and assembled.

To achieve the above object, the present invention provides a projector including:

the shell is provided with an accommodating cavity, a through hole is formed in the side wall of the shell, a through hole is formed in the bottom wall of the shell, and the through hole are communicated with the accommodating cavity;

the decorative plate comprises a plate body and a clamping piece connected to the plate body, the plate body is detachably mounted on the outer wall surface of the shell, and the clamping piece extends into the through hole;

the support legs comprise foot pads and support columns connected to the foot pads, the foot pads are arranged at the bottom of the shell, and the support columns can be movably inserted into the through holes so as to extend into or withdraw from the accommodating cavities;

the movable piece is movably arranged in the accommodating cavity and shields the through hole so as to be pushed to a first position by the supporting column extending into the accommodating cavity or move to a second position along with the supporting column exiting from the accommodating cavity;

the movable piece is provided with a limiting bulge close to the via hole, and when the movable piece is located at the first position, the limiting bulge is located between the clamping piece and the via hole; when the moving part is located at the second position, the limiting bulge is away from the clamping piece.

Optionally, the moving part includes montant and horizontal pole, the horizontal pole connect in the bottom of montant, spacing arch connect in the montant, the horizontal pole shelters from the through-hole.

Optionally, a guide rib is arranged on the inner side wall of the shell in a protruding mode, the guide rib extends along the longitudinal direction, the guide rib is located on one side, away from the via hole, of the vertical rod, and the side, away from the via hole, of the vertical rod is abutted to the guide rib.

Optionally, the protruding brace rod that is equipped with of inside wall of casing, the brace rod is along longitudinal extension, the montant orientation one side butt of shells inner wall in the brace rod.

Optionally, the projector further comprises a guide piece covering the through hole, the guide piece is provided with a guide groove communicated with the through hole, and the cross rod is in sliding fit with the guide groove.

Optionally, the projector further includes a reset piece disposed in the guide groove, the reset piece is connected to the cross bar, and when the support column exits the accommodating cavity, the reset piece resets the cross bar downward.

Optionally, the guide groove has a top groove wall opposite to the through hole, the resetting member is provided as an elastic member, one end of the resetting member abuts against the top groove wall, and the other end abuts against the cross rod.

Optionally, a fixing boss is convexly arranged on the inner wall surface of the housing, the fixing boss is annularly arranged on the through hole, a positioning ring is convexly arranged at the bottom of the guide piece, and the positioning ring is sleeved on the fixing boss.

Optionally, the support column is in threaded engagement with the through hole.

Optionally, the projecting apparatus still includes the pad cover, the pad cover with through-hole fixed fit, the support column with pad cover screw-thread fit.

The projector limits the clamping piece entering the through hole through the limiting clamping protrusion of the movable piece, so that the decorative plate can be stably arranged on the shell; and then, the movable part is linked with the foot pad, so that a user can drive the supporting column to withdraw from the accommodating cavity by driving the foot pad, the movable part synchronously moves downwards to a second position, the limiting bulge of the movable part synchronously moves to the avoiding position clamping piece, and the clamping piece can freely withdraw from the through hole, so that the decorative plate can be detached from the shell. Therefore, a user can detach or fix the decorative plate by driving the foot pad of the projector without using other tools, so that the detaching process of the decorative plate is simpler and more convenient; and when dismouting decorative board, main effort is not acted on the decorative board, but acts on the moving part that can spacing joint spare, and the effort that consequently reducible decorative board bore to prevent decorative board atress deformation or damage, improve the structural stability of decorative board.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, 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 the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic diagram of a projector according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic cross-sectional view of a projector according to an embodiment of the invention;

FIG. 4 is a partial enlarged view of FIG. 3 at B;

FIG. 5 is a schematic cross-sectional view of another embodiment of the projector according to the invention;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

fig. 7 is a schematic sectional view of a projector according to still another embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of FIG. 7 at D;

FIG. 9 is a schematic cross-sectional view of a projector according to another embodiment of the invention;

fig. 10 is a schematic cross-sectional view of the trim panel of fig. 9, shown removed.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)	Reference numerals	Name(s)
						10	Shell body	11	Containing cavity	12	Via hole
13	Through hole	20	Decorative board	21	Plate body
						22	Clamping piece	30	Supporting leg	31	Foot pad
32	Supporting column	40	Movable part	41	Spacing protrusion
						42	Vertical rod	43	Cross bar	14	Guiding rib
15	Support rib	50	Guide piece	51	Guide groove
						60	Reset piece	511	Wall of roof tank	16	Fixed boss
52	Locating ring	70	Cushion cover

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; etc.) are involved in the embodiment of the present invention, the directional indications are only used for explaining the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the figure), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the expression "and/or" as used throughout is meant to encompass three juxtaposed aspects, exemplified by "A and/or B", including either the A aspect, or the B aspect, or aspects in which both A and B are satisfied. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a projector, which is a device capable of projecting images or videos onto a curtain or a wall, and can be connected with electronic devices such as a computer, a mobile phone, a DVD (digital video disk), a game machine and the like through different interfaces to play corresponding video signals.

In an embodiment of the present invention, as shown in fig. 1 to 10, the projector includes: the shell 10 is provided with an accommodating cavity 11, a through hole 12 is formed in the side wall of the shell 10, a through hole 13 is formed in the bottom wall of the shell 10, and the through hole 12 and the through hole 13 are communicated with the accommodating cavity 11; the decorative plate 20 comprises a plate body 21 and a clamping piece 22 connected to the plate body 21, the plate body 21 is detachably mounted on the outer wall surface of the shell 10, and the clamping piece 22 extends into the through hole 12; the supporting legs 30 comprise foot pads 31 and supporting columns 32 connected to the foot pads 31, the foot pads 31 are arranged at the bottom of the shell 10, and the supporting columns 32 can be movably inserted into the through holes 13 to extend into or withdraw from the accommodating cavities 11; the moving part 40 is movably arranged in the accommodating cavity 11 and covers the through hole 13 so as to be pushed to a first position by the supporting column 32 extending into the accommodating cavity 11, or move to a second position along with the supporting column 32 retreating from the accommodating cavity 11; the movable member 40 is provided with a limiting protrusion 41 adjacent to the via hole 12, and when the movable member 40 is located at the first position, the limiting protrusion 41 is located between the clamping member 22 and the via hole 12; when the movable member 40 is located at the second position, the limiting protrusion 41 is away from the engaging member 22.

The accommodating cavity 11 of the housing 10 is used for installing functional layouts of projectors, such as optical mechanical components, audio players and the like; the shape of the housing 10 may be circular or square, which is not limited herein. The wall of the housing 10 can be opened at the heat dissipation holes communicated with the accommodating chamber 11, and the decorative plate 20 covers the heat dissipation holes. The number of the heat dissipation holes can be one or more, and is not limited herein; if there are a plurality of heat dissipation holes, the decorative plate 20 may cover the plurality of heat dissipation holes. In the operation of the projector, external air flow needs to be introduced into the inner cavity for heat dissipation, and external dust enters the housing 10 along with the air flow and adheres and accumulates in the inner structure of the housing 10.

The decorative plate 20 may be a flat plate or a folded plate, and the limitation is not limited herein, and the decorative plate 20 only needs to cover the heat dissipation holes. When covering the heat dissipation holes, the decorative plate 20 can hide and protect the heat dissipation holes, so that the internal structure of the projector is protected, the appearance of the projector is integrally improved, and the appearance of the projector is more attractive. When the decorative plate 20 is detached from the housing 10, i.e. the heat dissipation holes are opened, the user can clean the dust in the accommodating cavity 11 from the heat dissipation holes or directly clean the dust on the inner surface of the decorative plate 20, so as to reduce the accumulation of the dust in the accommodating cavity 11, thereby reducing the influence of the dust on the heat dissipation effect and the operation effect of the projector.

The foot pad 31 can support the shell 10 to stand on the placing surface, so that the projector can stand stably; in addition, the foot pad 31 can also separate the housing 10 from the placing surface, so that the air flow can enter the accommodating cavity 11 from the air hole formed at the bottom of the housing 10, and the heat dissipation efficiency is improved. The movement mode of the supporting column 32 in the through hole 13 is not limited, and the supporting column can be axially stretched and retracted, and can also be spirally pushed, so that the supporting column 32 can enter or exit the accommodating cavity 11 along the through hole 13. Since the supporting column 32 is connected to the foot pad 31, a user can drive the supporting column 32 into and out of the accommodating cavity 11 by driving the foot pad 31.

The specific shape of the movable member 40 is not limited, and only needs to be satisfied that it has a certain height and the bottom covers the through hole 13. When the supporting pillar 32 extends into the accommodating cavity 11, the movable member 40 is pushed upward to the first position, and at this time, the limiting protrusion 41 is located between the clip 22 and the via hole 12, so that the clip 22 cannot normally exit the via hole 12, that is, the decorative plate 20 cannot be detached from the housing 10. When the supporting pillar 32 exits the accommodating cavity 11, the movable member 40 can move to the second position under the action of gravity, and at this time, the limiting protrusion 41 avoids the engaging member 22, and the engaging member 22 can normally exit from the through hole 12, so that the decorative plate 20 can be detached from the housing 10.

When decorative board 20 is dismantled to needs, the accessible is pulled foot pad 31 and is made support column 32 withdraw from holding chamber 11, and at this moment, the moving part 40 that loses the support column 32 effort can move down under the action of gravity to drive spacing arch 41 activity to the position of avoiding position joint spare 22, make joint spare 22 can freely withdraw from via hole 12, thereby the user can detach decorative board 20 from casing 10.

When needs installation decorative board 20, assemble decorative board 20 in casing 10 earlier, and insert joint spare 22 in the via hole 12 in step, the inside activity of redriving callus on the sole 31 towards through-hole 13, in order to drive support column 32 and get into holding chamber 11 along through-hole 13 in step, the support column 32 that gets into holding chamber 11 can push up the moving part 40, in order to drive spacing arch 41 activity to between joint spare 22 and the via hole 12, thereby it is effective spacing to make joint spare 22 can be by spacing arch 41, namely make decorative board 20 can be firmly installed on casing 10.

Because the main acting force is directly acted on the supporting column 32 and the movable piece 40 in the dismounting process, the decorative plate 20 does not need to be broken with force, so that the acting force borne by the decorative plate 20 can be reduced, and the decorative plate 20 is prevented from being deformed or damaged by force. In addition, the user can directly grab the foot pad 31 with the hand to apply the acting force in the dismounting process without other tools, so that the convenience of dismounting engineering is improved.

The projector limits the clamping piece 22 entering the through hole 12 through the limiting clamping bulge of the movable piece 40, so that the decorative plate 20 can be stably arranged on the shell 10; then, the movable element 40 is linked with the foot pad 31, so that the user can drive the supporting column 32 to exit from the accommodating cavity 11 by driving the foot pad 31, and the movable element 40 synchronously moves downwards to the second position, at this time, the limiting protrusion 41 of the movable element 40 also synchronously moves to the avoiding position clamping element 22, so that the clamping element 22 can freely exit from the through hole 12, and the decorative plate 20 can be detached from the housing 10. Therefore, a user can detach or fix the decorative plate 20 by driving the foot pad 31 of the projector without using other tools, so that the detaching process of the decorative plate 20 is simpler and more convenient; and when dismouting decorative board 20, main effort is not acted on decorative board 20, but acts on the movable part 40 that can spacing joint spare 22, therefore the effort that reducible decorative board 20 bore to prevent decorative board 20 atress deformation or damage, improve decorative board 20's structural stability.

In one embodiment, as shown in fig. 1 to 4, the movable member 40 includes a vertical rod 42 and a cross rod 43, the cross rod 43 is connected to a bottom end of the vertical rod 42, the limiting protrusion 41 is connected to the vertical rod 42, and the cross rod 43 covers the through hole 13. It will be appreciated that the vertical bars 42 extend in the longitudinal direction and the transverse bars 43 extend in the transverse direction; the vertical rod 42 and the horizontal rod 43 may be in the shape of a circular bar or a flat bar, which is not limited herein. The movement transmission of the limiting protrusion 41 by the supporting member is realized through the cross rod 43 and the vertical rod 42, so that the structure of the movable member 40 can be simplified, and the supporting leg 30 can deviate from the lower part of the via hole 12, thereby reasonably selecting the position of the supporting leg 30 at the bottom of the housing 10 according to actual requirements, and further stabilizing the supporting structure of the projector. Wherein, horizontal pole 43 one end is connected in montant 42, and the through-hole 13 is sheltered from to the other end to rationally control horizontal pole 43 size.

Specifically, the quantity of via hole 12 can be a plurality ofly, and a plurality of via holes 12 are along the longitudinal distribution of casing 10, and the quantity and the position of joint spare 22 correspond with via hole 12 on the decorative board 20, and the quantity and the position of spacing arch 41 also correspond with via hole 12 on the montant 42 to multiplicable moving part 40 is to the spacing area of decorative board 20, improves spacing intensity.

In an embodiment, as shown in fig. 1 to 3, a guiding rib 14 is protruded from an inner side wall of the housing 10, the guiding rib 14 extends along a longitudinal direction, the guiding rib 14 is located on a side of the vertical rod 42 away from the via hole 12, and a side of the vertical rod 42 away from the via hole 12 abuts against the guiding rib 14. The guiding rib 14 can limit the moving direction of the vertical rod 42 and prevent the vertical rod 42 from deviating in the direction away from the via hole 12, thereby improving the moving stability of the moving member 40 and the stability of the process of assembling and disassembling the decorative plate 20.

In an embodiment, as shown in fig. 1 and fig. 2, a supporting rib 15 protrudes from an inner side wall of the housing 10, the supporting rib 15 extends along a longitudinal direction, and one surface of the vertical rod 42 facing the inner side wall of the housing 10 abuts against the supporting rib 15. Because the via hole 12 is opened in the casing 10, the clip member 22 also approaches the inner wall of the casing 10 after extending into the via hole 12, and therefore the vertical rod 42 also needs to approach the inner wall of the casing 10, so that the position of the limiting protrusion 41 can correspond to the clip member 22. The support ribs 15 can prevent the vertical rod 42 from directly contacting the inner wall of the housing 10, so as to reduce the friction resistance of the inner wall of the housing 10 to the movement of the vertical rod 42, thereby saving labor in the moving process of the vertical rod 42.

In an embodiment, as shown in fig. 3 to 8, the projector further includes a guide 50 covering the through hole 13, the guide 50 is provided with a guide groove 51 communicating with the through hole 13, and the cross bar 43 is slidably engaged with the guide groove 51. The specific shape of the guide 50 is not limited, and only the shape of the wire guide covering the through hole 13 is required. The notch of the guide slot 51 faces the vertical rod 42, and the cross bar 43 is located between the two side slot walls of the guide slot 51 to limit the cross bar 43 and prevent the cross bar 43 from deviating from the through hole 13, thereby improving the movement stability of the movable member 40.

In an embodiment, as shown in fig. 3, 6 and 8, the projector further includes a resetting member 60 disposed in the guide groove 51, the resetting member 60 is connected to the cross bar 43, and when the supporting pillar 32 exits the accommodating cavity 11, the resetting member 60 resets the cross bar 43 downward. The reset member 60 may be an elastic member or an extensible member, and is not limited herein, and only needs to be satisfied that the cross bar 43 can be reset downward when the cross bar 43 is not pushed by the supporting pillar 32. Therefore, gravity is not required to be relied on in the process that the movable member 40 moves to the second position, so that the user can turn the projector on one side or upside down and then detach the decorative plate 20, and the convenience of the detaching process is improved.

Specifically, as shown in fig. 3, 6 and 8, the guide slot 51 has a top slot wall 511 opposite to the through hole 13, the reset element 60 is an elastic element, and one end of the reset element 60 abuts against the top slot wall 511, and the other end abuts against the cross bar 43. The restoring member 60 may be provided as a spring to improve structural strength. When the supporting column 32 extends into the accommodating cavity 11, the cross rod 43 upwards compresses the resetting piece 60, so that the resetting piece 60 has elastic potential energy; when the supporting pillar 32 exits the accommodating cavity 11, the restoring member 60 releases the elastic potential energy to push the cross bar 43 toward the second position, so that the movable member 40 moves to the second position more quickly. The top slot wall 511 can be opened with a positioning slot, and one end of the reset piece 60 is arranged in the positioning slot to prevent the reset piece 60 from separating from the preset position, thereby improving the installation stability of the reset piece 60.

In an embodiment, as shown in fig. 6 and 8, a fixing boss 16 is protruded from an inner wall surface of the housing 10, the fixing boss 16 is annularly disposed on the through hole 13, a positioning ring 52 is protruded from a bottom of the guide 50, and the positioning ring 52 is sleeved on the fixing boss 16. The positioning ring 52 is fixedly matched with the fixing boss 16 to realize the fixed connection of the guide 50 and the housing 10, and the matching area of the guide 50 and the housing 10 can be increased, and the matching strength is improved. The guide 50 may further have a connection hole, and the housing 10 may have a fixing hole, and the connection hole is connected to the fixing hole by a fastening member, so as to further improve the connection strength between the guide 50 and the housing 10.

In one embodiment, as shown in fig. 6 and 8, the support post 32 is threadably engaged with the through hole 13. The peripheral wall of support column 32 is equipped with the external screw thread, and the pore wall of through-hole 13 is equipped with the internal thread, and support column 32 passes through the screw thread and advances or retreat along through-hole 13 spiral to make the user accessible twist callus on the sole 31 and come the dismouting drive support column 32, convenience of customers dismouting decorative board 20. The supporting posts 32 may be directly engaged with the through holes 13 or indirectly engaged through an intermediate structure, which is not limited herein. Specifically, as shown in fig. 6 and 8, the projector further includes a cushion cover 70, the cushion cover 70 with the through hole 13 is fixedly matched, the support column 32 with the thread fit of the cushion cover 70 so that the acting force can be transmitted to the cushion cover 70 without directly acting on the through hole 13, and the damage of the shell 10 caused by the excessive acting force is prevented, thereby improving the protection effect on the shell 10.

The above description is only an alternative embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, which are within the spirit of the present invention, are included in the scope of the present invention.

Claims

1. A projector, characterized by comprising:

the shell is provided with an accommodating cavity, a through hole is formed in the side wall of the shell, a through hole is formed in the bottom wall of the shell, and the through hole are communicated with the accommodating cavity; the shell wall of the shell is provided with heat dissipation holes communicated with the accommodating cavity;

the supporting legs comprise foot pads and supporting columns connected to the foot pads, the foot pads are arranged at the bottom of the shell, and the supporting columns can be movably inserted into the through holes to extend into or withdraw from the accommodating cavities;

the movable piece is movably arranged in the accommodating cavity and covers the through hole so as to be pushed to a first position by the supporting column extending into the accommodating cavity or move to a second position along with the supporting column exiting from the accommodating cavity;

the movable part is provided with a limiting bulge close to the via hole, and when the movable part is positioned at the first position, the limiting bulge is positioned between the clamping piece and the via hole, so that the clamping piece is limited by the limiting bulge and cannot exit from the via hole; when the moving part is located at the second position, the limiting bulge is in a position avoiding state of the clamping piece.

2. The projector according to claim 1, wherein the movable member includes a vertical rod and a cross rod, the cross rod is connected to a bottom end of the vertical rod, the limiting protrusion is connected to the vertical rod, and the cross rod blocks the through hole.

3. The projector as claimed in claim 2, wherein a guiding rib is protruded from an inner side wall of the housing, the guiding rib extends in a longitudinal direction, the guiding rib is located on a side of the vertical rod away from the via hole, and a side of the vertical rod away from the via hole abuts against the guiding rib.

4. The projector as claimed in claim 2, wherein a support rib is protruded from an inner wall of the housing, the support rib extends in a longitudinal direction, and a surface of the vertical rod facing the inner wall of the housing abuts against the support rib.

5. The projector according to claim 2, further comprising a guide member covering the through hole, wherein the guide member has a guide groove communicating with the through hole, and the cross bar is slidably engaged with the guide groove.

6. The projector as claimed in claim 5, further comprising a reset member disposed in the guide slot, wherein the reset member is connected to the rail, and the reset member resets the rail downward when the support post exits the receiving cavity.

7. The projector as claimed in claim 6, wherein the guide groove has a top groove wall opposite to the through hole, and the reset member is provided as an elastic member, and one end of the reset member abuts against the top groove wall and the other end abuts against the cross bar.

8. The projector according to claim 5, wherein a fixing boss is protruded from an inner wall surface of the housing, the fixing boss is annularly disposed on the through hole, a positioning ring is protruded from a bottom of the guide member, and the positioning ring is sleeved on the fixing boss.

9. The projector according to any of claims 1 to 8, wherein the support post is screw-engaged with the through hole.

10. The projector of claim 9 further comprising a spacer, the spacer fixedly engaged with the through-hole, the support posts threadedly engaged with the spacer.