CN108458236B

CN108458236B - Projector fixing device and projector fixing method

Info

Publication number: CN108458236B
Application number: CN201810362402.4A
Authority: CN
Inventors: 李金福; 洪敏文
Original assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Current assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2020-03-20
Anticipated expiration: 2038-04-20
Also published as: CN108458236A

Abstract

The invention discloses a projector fixing device and a projector fixing method, which are used for fixing a projector on a target wall surface. The first plate body is used for fixing with the projector and is provided with a first surface, the first surface is provided with an inverted L-shaped first bulge, and the first bulge is provided with a first body and a first extending part extending from the first body; the connecting part is provided with a first end and a second end which are opposite, the first end is used for being fixed on a target wall surface, the second end is provided with a second plate body, and the second plate body is provided with a first through hole; when the first plate body is used, the first plate body is fixed on a projector, the first end of the connecting part is fixed on a target wall surface, the first bulge penetrates through the first through hole and then rotates to reach a target position, at the moment, the first body is positioned in the first through hole, and the first extending part covers the second plate body. By using the invention, the projector can be fixed by a single person, and the operation is convenient.

Description

Projector fixing device and projector fixing method

Technical Field

The present invention relates to a projector fixing device and a projector fixing method, and more particularly, to a projector fixing device and a projector fixing method.

Background

With the advancement of technology, projectors have generally entered the field of teaching, office automation and some public places. When using a projector, the projector is usually fixed to a target wall surface (e.g., a ceiling) by a fixing device. In the prior art, one end of a connecting part is fixed on a target wall surface, then a projector is fixed on the other end of the connecting part, when the projector is fixed on the other end, one person is required to lock an attaching screw, and the other person is required to help hold the projector, so that the installation is inconvenient.

Disclosure of Invention

The invention aims to provide a fixing device and a fixing method for conveniently fixing a projector, so as to solve the problem that the existing projector is inconvenient to mount.

In order to achieve the above object, the present invention provides a projector fixing device for fixing a projector to a target wall surface, the projector fixing device comprising:

the first plate body is used for being fixed with the projector and provided with a first surface deviating from the projector, an inverted L-shaped first bulge is arranged on the first surface, the first bulge is provided with a first body and a first extending part extending out of the first body, and the first body protrudes out of the first surface; and

the connecting part is provided with a first end and a second end which are opposite, the first end is used for being fixed on the target wall surface, the second end is provided with a second plate body, and the second plate body is provided with a first through hole;

when the first plate body is fixed on the projector, the first end of the connecting part is fixed on the target wall surface, the first bulge firstly penetrates through the first through hole and then rotates for a certain angle to reach a target position, and when the first bulge is located at the target position, the first body is located in the first through hole and the first extending part covers the second plate body.

As an optional technical solution, the first through hole includes a first hole and a second hole connected to each other, and when in use, the first body and the first extension portion rotate by a certain angle after passing through the first hole, so that the first body enters the second hole, and the first extension portion covers the second plate.

As an optional technical solution, the first extending portion protrudes toward the first plate body to form a first positioning member, the second plate body has a plurality of second positioning holes corresponding to the first positioning member, and when the first protrusion reaches the target position, the first positioning member is positioned in one of the plurality of second positioning holes.

As an optional technical solution, the second plate body is circular, the second plate body has a first circle center, and the plurality of second positioning holes are disposed adjacent to the first through hole and are uniformly arranged along a first circumference using the first circle center as the circle center.

As an optional technical solution, the first positioning member has a positioning body, an elastic member and a positioning ball plug, the positioning body is connected to the first extension portion, two ends of the elastic member are respectively connected to the positioning body and the positioning ball plug, and when the first protrusion reaches the target position, the positioning ball plug is located in one of the second positioning holes.

As an optional technical solution, the first surface of the first plate further has a second protrusion, the second protrusion has a second body and a second extending portion, the second plate has a second through hole, the second through hole has a third hole and a fourth hole connected to each other, the third hole is for the second protrusion to pass through, the second protrusion is opposite to the first protrusion, when the first body is located in the second hole, the second body is located in the fourth hole, and the second extending portion covers the second plate.

As an optional technical solution, the first surface of the first plate body further has a third protrusion, the first protrusion, the second protrusion and the third protrusion are arranged along a second circumference using the first circle center as a circle center, the third protrusion is located between the first protrusion and the second protrusion, the second circumference is located at the periphery of the first circumference, the second plate body has a third through hole, and when the first protrusion reaches the target position, the third protrusion is located in the third through hole.

As an optional technical solution, the second plate body is provided with a first side wall from the third through hole, the first side wall extends toward a direction away from the second plate body, and when the first protrusion reaches the target position, the first side wall and the third protrusion are fixed by a fixing member.

As an optional technical solution, the second plate body has a middle area, the middle area is provided with a first gear, the first extension portion is provided with a damping gear toward the first surface, the damping gear has a second number of second engaging teeth, and the damping gear is engaged with the first gear.

In addition, the present invention provides a method for fixing a projector to a target wall surface, the method comprising:

step A, providing a projector fixing device, which comprises a first plate body and a connecting part, wherein the first plate body is provided with a first surface, the first surface is provided with an inverted L-shaped first bulge, the first bulge is provided with a first body and a first extending part extending out of the first body, the connecting part is provided with a first end and a second end which are opposite, the second end is provided with a second plate body, and the second plate body is provided with a first through hole;

b, fixing the first plate on the projector;

step C, fixing the first end of the connecting part on the target wall surface, wherein the sequence of the step C and the step B can be changed; and

and step D, enabling the first bulge to penetrate through the first through hole and rotate for a certain angle to reach a target position, wherein the first body is positioned in the first through hole and the first extending part covers the second plate body.

According to the projector fixing device and the projector fixing method, the inverted-L-shaped first protrusion is arranged on the first plate body, the first plate body and the projector can be moved to a specified position and penetrate through the first through hole during assembly, and then the first plate body and the projector rotate to enable the first body to be located in the first through hole, and meanwhile, the first extending portion covers the first plate body, so that the position of a combined body of the first plate body and the projector can be fixed through interference between the first extending portion and the second plate body, and the combined body and the second plate body are fixed. Even make follow-up still go on further fixedly with first plate body and second plate body through the mounting, consequently second plate body and first plate body have been fixed through first arch during, so no longer need other people help to hold the projector, only single can accomplish, and convenient operation.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1 is a schematic view of a projector mounted on a wall of a target by a projector mount according to the present invention;

fig. 2 is a partial perspective view illustrating a projector fixing device and a projector according to an embodiment of the invention;

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

fig. 4 is a perspective view of a second plate in the fixing device of the projector shown in fig. 2;

FIG. 5 is a cross-sectional view of a first positioning member of the projector mount of FIG. 2;

FIG. 6 is a partial perspective view of a projector mount according to another embodiment of the invention;

fig. 7 is a partial sectional view of a projector mount according to another embodiment of the invention when mounted;

fig. 8 is a flowchart of a fixing method of a projector according to the present invention.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Please refer to fig. 1, fig. 2, fig. 3 and fig. 4. FIG. 1 is a schematic view of a projector mounted on a wall of a target by a projector mount according to the present invention; fig. 2 is a partial perspective view illustrating a projector fixing device and a projector according to an embodiment of the invention; FIG. 3 is a partial cross-sectional view of a projector fixture according to an embodiment of the invention; fig. 4 is a perspective view of a second plate in the fixing device of the projector shown in fig. 2. The projector mount of the present invention is used to mount the projector 2000 on a target wall 3000, and the target wall 3000 is, for example, a ceiling or other wall.

The projector fixture includes a first plate 100 and a connecting portion 500. The first plate 100 is used for fixing with the projector 2000, and the first plate 100 has a first surface 101 facing away from the projector 2000, the first surface 101 is provided with an inverted L-shaped first protrusion 110, and the first protrusion 110 has a first body 111 and a first extending portion 112 extending from the first body 111. As shown in fig. 1, the connecting portion 500 has a first end 510 and a second end 520 opposite to each other, the first end 510 is used for being fixed to the target wall surface 3000, and the second end 520 has a second plate 200. The second plate 200 has a first through hole 210, and the first through hole 210 corresponds to the first protrusion 110 for the first protrusion 110 to pass through. When fixing, the first board 100 is fixed on the projector 2000, and the fixing of the first board 100 and the projector 2000 can be completed by the screw 300, which is not limited to this. The first end 510 of the connecting portion 500 is fixed to the target wall 3000, and then the first protrusion 110 passes through the first through hole 210 and rotates by a certain angle to reach the target position, at this time, the first body 111 is located in the first through hole 210 and the first extending portion 112 covers the second board 200, that is, the projection of the first extending portion 112 on the plane of the second board 200 falls on the second board 200.

In this embodiment, the first body 111 protrudes from the first surface 101, and the first extending portion 112 extends from one end of the first body 111 away from the first surface 101 toward a direction close to the center of the first plate 100, so that the corresponding first hole 211 on the second plate 200 extends toward a direction close to the center of the second plate 200. In practical applications, the first extending portion 112 may also extend toward a direction away from the center of the first plate 100, and the corresponding first hole 211 on the second plate 200 is disposed to extend toward a direction away from the center of the second plate 200.

In the projector fixing device of the present invention, since the first protrusion 110 having the inverted L shape is disposed on the first plate 100, when assembling, the first plate 100 and the projector 2000 can be moved to a designated position, and the first protrusion 110 passes through the first through hole 210, and then rotated, so that the first body 111 is located in the first through hole 210, and the first extending portion 112 covers the second plate 200, so that the combination of the first plate 100 and the projector 2000 can be fixed in position by the interference between the first extending portion 112 and the second plate 200, that is, the combination and the second plate 200 are fixed, and the second plate 200 is located at the second end 520 of the connecting portion 500, and the first end 510 of the connecting portion 500 is fixed on the target wall surface 3000, thereby realizing the indirect fixed connection between the projector 2000 and the target wall surface 3000. The assembling action can be completed by only one person, and the operation is convenient.

It should be noted that the first protrusion 110 can rotate after passing through the first through hole 210 to achieve two functions. First, the first body 111 is positioned in the first through hole 210 while the first extension portion 112 covers the second plate 200, so that the position of the combination of the first plate 100 and the projector 2000 is fixed by the interference between the first body and the second body; secondly, since the first protrusion 110 is disposed on the first plate 100, and the first plate 100 is fixedly coupled to the projector 2000, rotating the first protrusion 110 means rotating the projector 2000. In actual operation, the image projected by the projector 2000 will reach a target curtain, and the user can monitor whether the projector 2000 is facing the target curtain while rotating the first protrusion 110, and when the projector 2000 is facing the curtain, the first protrusion 110 is said to reach the target position.

As shown in fig. 2 and 4, the first through hole 210 includes a first hole 211 and a second hole 212 connected to each other, when in use, the first body 111 of the first protrusion 110 and the first extension portion 112 rotate after passing through the first hole 211, so that the first body 111 enters the second hole 212, and the first extension portion 112 covers the second plate 200. Such a design can ensure that the first protrusion 110 can smoothly enter the first hole 211 of the first through hole 210 at the beginning of assembly, and can also ensure that the first extension part 112 can cover the second plate 200 after rotation so as to form position interference between the first and second plate, thereby realizing position fixing of the combination of the first plate 100 and the projector 2000.

As shown in fig. 2 and 3, the first extending portion 112 protrudes toward the first board 100 to form a first positioning member 113, the second board 200 has a plurality of second positioning holes 213 corresponding to the first positioning member 113, and when the first protrusion 110 reaches the target position, the first positioning member 113 is positioned in one of the plurality of second positioning holes 213. After the first protrusion 110 enters the first hole 211 of the first through hole 210 at the beginning of assembly, since the first positioning member 113 is disposed on the first protrusion 110, the first positioning member 113 continuously adjusts its position during the process of rotating the first protrusion 110 until the projector 2000 faces the target curtain, and at this time, the first positioning member 113 is matched with one of the plurality of second positioning holes 213 for positioning.

As shown in fig. 2 and 4, the second plate 200 is circular, the second plate 200 has a first circle center O, and the plurality of second positioning holes 213 are disposed adjacent to the first through hole 210 and are uniformly arranged along a first circumference C1 centered at the first circle center O. The uniform arrangement means that the distance between two adjacent second positioning holes 213 is equal, and the included angle between two adjacent second positioning holes 213 and the first circle center O can also be considered to be equal.

In practice, when the combination of the first board 100 and the projector 2000 is assembled with the second board 200, it is difficult for an assembler to control the first protrusion 110 to rotate finely, and it may happen that the first protrusion 110 is rotated clockwise to find that the projector 2000 is tilted to the left with respect to the target curtain, and then the first protrusion 110 is rotated counterclockwise to find that the projector 2000 is tilted to the right with respect to the target curtain, so that the adjustment is not easy. In this embodiment, by providing the first positioning member 113 and the plurality of second positioning holes 213, in the process of rotating the first protrusion 110, if the first positioning member 113 is located in cooperation with one of the second positioning holes 213, and then the projector 2000 is found not to be directly facing the target curtain, for example, to be inclined to the right, the first protrusion 110 is rotated clockwise, and at this time, there is an obvious pause feeling (because the first positioning member 113 needs to leave the second positioning hole 213 originally located with the first positioning member), and then a light feeling appears, it is known that the first positioning member 113 has been located in cooperation with the first second positioning hole 213 beside the second positioning hole 213, and then it is observed whether the projector 2000 is directly facing the target curtain, if not, fine adjustment is continued until the projector 2000 is directly facing the target curtain, and the first protrusion 110 reaches the target position.

In this embodiment, due to the arrangement of the first positioning member 113 and the plurality of second positioning holes 213, if the assembler rotates each time to replace the first positioning member 113 with the first second positioning hole 213 located beside the current second positioning hole 213 for positioning, the rotation angle of the first protrusion 110 is limited during each rotation, so as to ensure that the first protrusion 110 rotates finely, thereby finely adjusting the position of the projector 2000 until the projector 2000 faces the target curtain. In addition, when the first protrusion 110 reaches the target position, the first positioning member 113 is positioned in cooperation with one of the second positioning holes 213, so that the first plate 100 and the second plate 200 can be fixed in position.

In practice, when the assembler finds that the angular deviation between the projector 2000 and the target screen is large, it can be determined that coarse adjustment can be performed at this time, i.e., the rotation range can be increased. For example, in the adjustment process, the user may know that the first positioning member 113 is replaced with the second positioning hole 213 beside the current second positioning hole 213 for positioning, and the user feels a feeling of frustration and ease twice. Of course, the assembler can also rotate the first protrusion 110 to replace the first positioning element 113 with a third second positioning hole 213 (even the fourth, the fifth, etc.) beside the current second positioning hole 213 for matching positioning, depending on the actual situation. When the assembler finds that the angle deviation between the projector 2000 and the target curtain is small, it can be determined that fine adjustment is required at this time, and it is only required to replace the first positioning member 113 with the first second positioning hole 213 beside the current second positioning hole 213 for positioning. If the assembler feels the sense of frustration and ease twice in the rotation process, the assembler can know that the angle adjustment is too large and needs to be adjusted backwards.

Referring to fig. 2 and 5, fig. 5 is a cross-sectional view of a first positioning element of the projector fixing device in fig. 2. The first positioning element 113 has a positioning body 114, an elastic element 115 and a positioning ball plunger 116, the positioning body 114 is connected to the first extending portion 112, and two ends of the elastic element 115 are respectively connected to the positioning body 114 and the positioning ball plunger 116. When the first protrusion 110 reaches the target position, the positioning ball plunger 116 is located in one of the second positioning holes 213. In this way, in the process of rotating the first protrusion 110, each time the first positioning member 113 is engaged with one of the second positioning holes 213 for positioning, a "click" sound may be heard along with the ease of use, so that the assembler can know that the first positioning member 113 is engaged with one of the second positioning holes 213 for positioning. Due to the arrangement of the elastic member 115, the first positioning member 113 can conveniently leave the current second positioning hole 213 in the rotating process of the first protrusion 110, so that the assembly difficulty is reduced, and the use hand feeling is improved.

As shown in fig. 2, 3 and 4, the first surface 101 of the first plate 100 further has a second protrusion 120, the second protrusion 120 has a second body 121 and a second extending portion 122, the second plate 200 has a second through hole 220, and the second protrusion 120 is disposed opposite to the first protrusion 110. In this embodiment, the second through hole 220 includes a third hole 221 and a fourth hole 222 connected to each other. When the first bump 110 passes through the first hole 211 of the first through hole 210, the second bump 120 passes through the third hole 221 of the second through hole 220; when the first protrusion 110 rotates to reach the target position, the first body 111 is located in the first hole 211 and the first extending portion 112 covers the second plate 200, and at this time, the second body 121 of the second protrusion 120 is located in the third hole 221 and the second extending portion 122 covers the second plate 200. By the arrangement of the second protrusion 120, the combination of the first plate 100 and the projector 2000 can be more stably fixed to the second plate 200.

In this embodiment, the second body 121 protrudes from the first surface 101, and the second extending portion 122 extends from one end of the second body 121 away from the first surface 101 toward a direction close to the center of the first plate 100, so that the corresponding third hole 221 on the second plate 200 extends toward a direction close to the center of the second plate 200. In practical applications, the second extending portion 122 may also extend toward a direction away from the center of the first plate 100, and the corresponding third hole 213 on the second plate 200 is disposed to extend toward a direction away from the center of the second plate 200.

In this embodiment, the first surface 101 of the first plate 100 further has a third protrusion 130 (see fig. 3), the first protrusion 110, the second protrusion 120, and the third protrusion 130 are arranged along a second circumference C2, the third protrusion 130 is located between the first protrusion 110 and the second protrusion 120, the second circumference C2 also uses the first circle center O as a circle center, the second circumference C2 is located at the periphery of the first circumference C1, the second plate 200 has a third through hole 230, and when the first protrusion 110 reaches the target position, the third protrusion 130 is located in the third through hole 230. As shown in fig. 2, 3 and 4, the second board body 200 is provided with a first sidewall 240 from the third through hole 230, the first sidewall 240 extends toward a direction away from the second board body 200 (specifically, extends away from the thickness direction of the second board body 200 in this embodiment), and when the first protrusion 110 reaches the target position, the first sidewall 240 and the third protrusion 130 are fixed by the fixing member 250. Thus, in addition to the position interference between the first extending portion 112 of the first protrusion 110 and the second plate 200, the fixing member 250 is further used to fix the elements on the first plate 100 and the elements on the second plate 200, thereby further improving the fixing effect. When the first sidewall 240 and the third protrusion 130 are fixed, the first board 100 and the second board 200 are fixed by the interference between the first protrusion 110 (and the second protrusion 120) and the second board 200, so that the fixing member 250 can be installed without other people helping to hold the projector 2000.

In one embodiment, the first sidewall 240 has a fourth through hole 241, a second surface and a third surface opposite to the fourth through hole 241, the fixing member 250 is a first screw, the third protrusion 130 has a screw hole (not shown) facing the first sidewall 240, when the first protrusion 110 reaches the target position, the third protrusion 130 is close to the third surface, and the first screw passes through the fourth through hole 241 from the second surface and enters the screw hole to lock the first sidewall 240 and the third protrusion 130.

In another embodiment, the first sidewall 240 has a fourth through hole 241, an opposite second surface and a third surface, the fixing element 250 is a positioning rod, the third protrusion 130 has a third positioning portion (not shown) facing the first sidewall 240, when the first protrusion 110 reaches the target position, the third protrusion 130 is close to the third surface, and the positioning rod passes through the fourth through hole 241 from the second surface and enters the third positioning portion to lock the first sidewall 240 and the third protrusion 130.

Referring to fig. 6 and 7, fig. 6 is a partial perspective view illustrating a fixing device of a projector according to another embodiment of the invention; fig. 7 is a partial sectional view of a projector mount according to another embodiment of the present invention when it is mounted. Unlike the embodiment shown in fig. 2, in the present embodiment, the first extending portion 112 does not protrude the first positioning member 113 toward the first plate 100, but a damping gear 170 is provided. As shown in fig. 6, the second plate 200 has a middle area on which a first gear 270 is disposed. The first gear 270 has, for example, a first number of first teeth, the damping gear 170 has, for example, a second number of second teeth, and the first number is greater than the second number. In this embodiment, the damping gear 170 disposed on the first plate 100 provides resistance required for stepless stop, and the damping gear 170 is engaged with the first gear 270 disposed on the second plate 200, and the number of teeth of the first gear 270 is greater than that of teeth of the damping gear 270, so that the damping gear 270 rotates corresponding to the first gear 170, thereby achieving the requirement of stepless rotation and making the rotation of the first protrusion 110 more stable.

In the above embodiment, the first protrusion 110 is disposed on the first board 100 connected to the projector 2000, and the first through hole 210 matched with the first protrusion is disposed on the second board 200 on the connecting portion 500. In practice, the two may also be interchanged. In particular, a projection fixing device can be provided for fixing a projector on a target wall surface. The projection device comprises a first plate body and a connecting part. The first plate body is used for being fixed with the projector, a first through hole is formed in the first plate body, and a first space is formed between the first plate body and the projector. In practical operation, when the combination of the first plate and the projector is placed on a plane in the forward direction, a certain gap is formed between the upper surface of the projector and the lower surface of the first plate (corresponding to at least the first through hole), so as to form the first space. The connecting portion is provided with a first end and a second end which are opposite to each other, the first end is used for being fixed on a target wall surface, the second end is provided with a second plate body, and the second plate body is provided with a first surface deviating from the first end. In practical operation, when the first board body and the second board body are assembled, the first surface of the second board body faces the first board body. The first surface is provided with an inverted L-shaped first protrusion, the first protrusion is provided with a first body and a first extending part extending from the first body, and the first body protrudes out of the first surface. When the first plate body is fixed, the first plate body is fixed on the projector, the first space is formed between the first plate body and the projector, and the first end of the connecting part is fixed on the target wall surface. And then, enabling the combination of the first plate body and the projector to be close to the second plate body, and enabling the first bulge on the second plate body to firstly pass through the first through hole on the first plate body and then rotate by a certain angle to reach a target position. When the first body is located in the first through hole, the first extending portion is located in the first space, and the second plate body covers the first extending portion.

In practical operation, when the first board body having the first through hole and the second board body having the first protrusion are applied, the further definition of the first protrusion and the first through hole can be referred to the related definition of the first protrusion 110 and the first through hole 210 in fig. 2 to 7, and the other structures of the first board body and the second board body can be referred to the related description in fig. 2 to 7, and it is only necessary to appropriately change the actual situation that the first through hole is disposed on the first board body connected to the projector and the first protrusion is disposed on the second board body.

In addition, the present invention also provides a method for fixing the projector 2000 to the target wall 3000. Referring to fig. 8, fig. 8 is a flowchart illustrating a fixing method of a projector according to the present invention, the fixing method includes:

step A (S100), providing a projector fixing device. The projector fixing device includes a first board 100 and a connecting portion 500, the first board 100 has a first surface 101, the first surface 101 is provided with a first protrusion 110 in an inverted L shape, the first protrusion 110 has a first body 111 and a first extending portion 112 extending from the first body 111, the connecting portion 500 has a first end 510 and a second end 520 opposite to each other, the second end 520 has a second board 200, and the second board 200 has a first through hole 210;

step B (S200) of fixing the first plate 100 to the projector 2000;

step C (S300) fixes first end 510 of connection portion 500 to target wall surface 3000. In actual operation, the sequence of the step C and the step B can be changed; and

step D (S400), the first protrusion 110 passes through the first through hole 210 and rotates to reach the target position, at this time, the first body 111 is located in the first through hole 210 and the first extending portion 112 covers the first plate 200.

In the embodiment shown in fig. 2, the first surface 101 of the first plate 100 further has a third protrusion 130, the second plate 200 has a third through hole 230, and when step D is executed, when the first protrusion 110 reaches the target position, the third protrusion 130 is located in the third through hole 230. In addition, the second plate body 200 is provided with a first sidewall 240 from the third through hole 230, and the first sidewall 240 extends toward a direction away from the second plate body 200. Therefore, step D may be followed by step E of fixing the first sidewall 240 and the third protrusion 130 by using the fixing member 250.

According to the projector fixing device, the inverted-L-shaped first protrusion is arranged on the first plate body, so that the first plate body and the projector can be moved to a specified position and penetrate through the first through hole during assembly, and then the first plate body and the projector rotate to enable the first body to be located in the first through hole, and the first extending portion covers the first plate body, so that the position of a combination of the first plate body and the projector can be fixed through interference between the first extending portion and the second plate body, namely the combination and the second plate body are fixed. Even make follow-up still go on further fixedly with first plate body and second plate body through the mounting, consequently second plate body and first plate body have been fixed through first arch during, so no longer need other people help to hold the projector, only single can accomplish, and convenient operation.

The present invention is capable of other embodiments, and various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A projector mount for mounting a projector to a target wall, the projector mount comprising:

when the first plate body is fixed on the projector, the first end of the connecting part is fixed on the target wall surface, the first bulge firstly passes through the first through hole and then rotates a certain angle to reach a target position, when the target position is reached, the first body is positioned in the first through hole, and the first extending part covers the second plate body;

the first through hole comprises a first hole and a second hole which are connected, when in use, the first body and the first extension part pass through the first hole and then rotate for a certain angle so that the first body enters the second hole, and meanwhile, the first extension part covers the second plate body; the first extending portion protrudes towards the first plate body to form a first positioning piece, the second plate body is provided with a plurality of second positioning holes corresponding to the first positioning piece, when the first protrusion reaches the target position, the first positioning piece is positioned in one of the second positioning holes, and the projector is opposite to the target curtain.

2. The projector fixture as claimed in claim 1, wherein: the second plate body is circular and provided with a first circle center, and the plurality of second positioning holes are arranged close to the first through hole and are uniformly distributed along a first circumference taking the first circle center as the circle center.

3. The projector fixture as claimed in claim 1, wherein: the first positioning member is provided with a positioning body, an elastic member and a positioning ball plug, the positioning body is connected with the first extension part, two ends of the elastic member are respectively connected with the positioning body and the positioning ball plug, and when the first bulge reaches the target position, the positioning ball plug is positioned in one of the second positioning holes.

4. The projector fixture as claimed in claim 2, wherein: the first surface of the first plate body is also provided with a second protrusion, the second protrusion is provided with a second body and a second extending part, the second plate body is provided with a second through hole, the second through hole is provided with a third hole and a fourth hole which are connected, the third hole is used for the second protrusion to pass through, the second protrusion and the first protrusion are oppositely arranged, when the first body is positioned in the second hole, the second body is positioned in the fourth hole, and the second extending part covers the second plate body.

5. The projector fixture as claimed in claim 4, wherein: the first surface of the first plate body is also provided with a third bulge, the first bulge, the second bulge and the third bulge are arranged along a second circumference taking the first circle center as the circle center, the third bulge is positioned between the first bulge and the second bulge, the second circumference is positioned on the periphery of the first circumference, the second plate body is provided with a third through hole, and when the first bulge reaches the target position, the third bulge is positioned in the third through hole.

6. The projector fixture as claimed in claim 5, wherein: the second plate body is provided with a first side wall from the third through hole, the first side wall extends towards the direction far away from the second plate body, and when the first bulge reaches the target position, the first side wall and the third bulge are fixed through a fixing piece.

7. A projector mount for mounting a projector to a target wall, the projector mount comprising:

the first plate body is used for being fixed with the projector, a first space is formed between the first plate body and the projector, and a first through hole is formed in the first plate body; and

the connecting part is provided with a first end and a second end which are opposite, the first end is used for being fixed on the target wall surface, the second end is provided with a second plate body, the second plate body is provided with a first surface which is deviated from the first end, the first surface is provided with an inverted L-shaped first bulge, the first bulge is provided with a first body and a first extending part which extends out of the first body, and the first body protrudes out of the first surface;

when the first plate body is fixed on the projector, the first end of the connecting part is fixed on the target wall surface, the first bulge firstly passes through the first through hole and then rotates a certain angle to reach a target position, when the target position is reached, the first body is positioned in the first through hole, the first extending part is positioned in the first space, and the first plate body covers the first extending part;

the first through hole comprises a first hole and a second hole which are connected, and when the first through hole is used, the first body and the first extending part pass through the first hole and then rotate for a certain angle, so that the first body enters the second hole; the first extending portion protrudes towards the first plate body to form a first positioning piece, the first plate body is provided with a plurality of second positioning holes corresponding to the first positioning piece, when the first protrusion reaches the target position, the first positioning piece is positioned in one of the second positioning holes, and the projector is opposite to the target curtain.

8. A method of fixing a projector to a target wall, the method comprising:

step A, providing a projector fixing device, which comprises a first plate body and a connecting part, wherein the first plate body is provided with a first surface, the first surface is provided with a first inverted L-shaped bulge, the first bulge is provided with a first body and a first extending part extending out of the first body, the connecting part is provided with a first end and a second end which are opposite, the second end is provided with a second plate body, the second plate body is provided with a first through hole, and the first through hole comprises a first hole and a second hole which are connected; the first extending part is provided with a first positioning piece which extends towards the first plate body, and the second plate body is provided with a plurality of second positioning holes corresponding to the first positioning piece;

b, fixing the first plate on the projector;

and step D, enabling the first protrusion to penetrate through the first through hole and rotate by a certain angle to reach a target position, enabling the first body to be located in the first through hole and the first extending portion to cover the second plate body, enabling the first positioning piece to be located in one of the second positioning holes, and enabling the projector to face a target curtain.