CN216870996U

CN216870996U - Fixing assembly

Info

Publication number: CN216870996U
Application number: CN202123391039.5U
Authority: CN
Inventors: 顾苍兴
Original assignee: Delta Electronics Inc
Current assignee: Delta Electronics Inc
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-01
Anticipated expiration: 2031-12-30

Abstract

A fixing component is applied to a projection device. The projection device comprises a shell and a lens module which is configured to move relative to the shell. The lens module comprises a first adjusting ring. The first adjusting ring is provided with a first shifting piece. The fixing component comprises a moving part, a first ring fixing part and a fixing element. The moving member includes an abutting portion. The abutment has a through hole. The first ring fixing part is rotatably connected with the moving part and comprises a first clamping part configured to clamp the first shifting piece. The fixing element includes an engaging portion. The engagement portion is configured to pass through the through hole and engage with the housing. A width of the fixing element is greater than a width of the through hole. When the fixed element presses the abutting part towards the shell, the first ring fixing piece is clamped and fixed between the moving piece and the shell.

Description

Fixing assembly

Technical Field

The present invention relates to a fixing assembly, and more particularly to a fixing assembly for a projection apparatus.

Background

Currently, when a commercial/home theater projector is used, the focus and the size of the projection lens are adjusted according to the actual environment, so that the projected image can achieve the best viewing quality. Specifically, when a projection lens module of a projector is designed, two adjustment rings are generally used for adjusting a picture, namely, adjusting a focal length of the picture and adjusting a size of the picture.

However, if the preset adjusting torque of the two adjusting rings is too small, the adjusted image is easily dropped and distorted by the sudden external force. At this time, the user must readjust to the distorted picture. In addition, some designs may install an electric deceleration motor module to drive the adjusting ring to adjust the picture, but this requires more development labor and higher cost. Moreover, when the electric deceleration motor module is used for picture adjustment, noise is generated due to the operation of the electric deceleration motor module.

Therefore, it is one of the issues that the industry is required to develop a fixing assembly to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Accordingly, an object of the present invention is to provide a fixing assembly that can effectively solve the above-mentioned problems.

In order to achieve the above object, according to an embodiment of the present invention, a fixing assembly is applied to a projection apparatus. The projection device comprises a shell and a lens module which is configured to move relative to the shell. The lens module comprises a first adjusting ring. The first adjusting ring is provided with a first plectrum, and the fixing component comprises a moving part, a first ring fixing part and a fixing element. The moving member includes an abutting portion. The abutment has a through hole. The first ring fixing part is rotatably connected with the moving part and comprises a first clamping part configured to clamp the first shifting piece. The fixing element includes an engaging portion. The engagement portion is configured to pass through the through hole and engage with the housing. A width of the fixing element is greater than a width of the through hole. When the fixed element presses the abutting part towards the shell, the first ring fixing piece is clamped and fixed between the moving piece and the shell.

In one or more embodiments of the present invention, the fixing element further includes a pressing portion. The pressing part is at least partially overlapped with the inner edge of the through hole.

In one or more embodiments of the present invention, the first ring holder includes a first flange. When the fixing element presses the abutting part towards the shell, the first flange is clamped and fixed between the abutting part and the shell.

In one or more embodiments of the present invention, the moving member further includes a plurality of positioning structures. The positioning structure is connected with the abutting part. The first flange is rotatably positioned between the locating structures.

In one or more embodiments of the present invention, each positioning structure includes a first extending portion and a second extending portion. The first extension portion is connected with the abutting portion and configured to abut against an edge of the first flange. The second extension part is connected with the first extension part. The first flange is limited between the abutting part and the second extending part.

In one or more embodiments of the present invention, the moving member further includes a limiting wall. The abutting part is connected with the limiting wall and is bent relative to the limiting wall. The limiting wall is provided with a notch. The first clamping part is connected with the first flange and extends out of the limiting wall from the notch.

In one or more embodiments of the present invention, the moving member further includes a limiting wall. The abutting part is connected with the limiting wall and is bent relative to the limiting wall. The first loop fastener further includes a first extension wall. The first extension wall is rotatably limited at the inner side of the limit wall.

In one or more embodiments of the present invention, the projection apparatus further includes a second adjustment ring. The second adjusting ring is provided with a second shifting piece. The fastening assembly further includes a second loop fastener. The second ring fixing piece is rotatably connected with the moving piece and is provided with a second clamping part configured to clamp the second shifting piece.

In one or more embodiments of the present invention, the second ring fixing member is disposed between the first ring fixing member and the moving member.

In one or more embodiments of the present invention, the second ring securing member includes a second flange. When the fixing element presses the abutting part towards the shell, the second flange is clamped and fixed between the abutting part and the shell.

In one or more embodiments of the present invention, the moving member further includes a limiting wall. The abutting part is connected with the limiting wall and is bent relative to the limiting wall. The second ring fastener further includes a second extension wall. The second extension wall is rotatably limited at the inner side of the limit wall.

In one or more embodiments of the present invention, the second extending wall is connected between the second flange and the second engaging portion. The second clamping part is positioned on the inner side of the limiting wall.

In summary, after the adjusting ring of the projection apparatus is adjusted to the position, the ring fixing member can be clamped and fixed between the moving member and the casing by first engaging the engaging portion of the ring fixing member of the fixing assembly with the pick of the adjusting ring, and then engaging the moving member with the casing of the projection apparatus by using the fixing element of the fixing assembly. Therefore, the fixing component can effectively solve the problems of the adjusted picture running off and distortion caused by the sudden external force. In addition, the through hole of the moving part can allow the connecting part of the fixing element to pass through and move laterally, so that the moving part and the ring fixing part can move together with the lens module of the projection device relative to the shell of the projection device. By making the width of the fixing element larger than that of the through hole, the fixing element can fix the moving member to the shell no matter where the moving member moves relative to the shell.

The foregoing is merely illustrative of the problems to be solved, solutions to problems, and effects produced by the present invention, and specific details thereof are set forth in the following description and the related drawings.

Drawings

In order to make the aforementioned and other objects, features, and advantages of the utility model, as well as others which will become apparent, reference is made to the following description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a partial perspective view of a projection device and a mounting assembly according to some embodiments of the utility model;

FIG. 2 is an exploded perspective view of a portion of the components of the fastening assembly of FIG. 1;

FIG. 3 is another perspective exploded view of the second ring fastener assembly of FIG. 2 mounted on the moving member;

FIG. 4 is a perspective assembly view of the device of FIG. 2;

FIG. 5 is a partial front view of the projection apparatus shown in FIG. 1;

FIG. 6 is a partial front view of the projection apparatus and the fixing assembly shown in FIG. 1;

FIG. 7 is a partial cross-sectional view of the projection device and the fixing assembly of FIG. 6 taken along line 7-7.

[ notation ] to show

100 projection device

110 casing

111: engaging hole

120 displacement module

121: first knob

122 second knob

130 lens module

131 the first adjusting ring

131a first shifting piece

132 second adjusting ring

132a second plectrum

133 lens

200 fixing assembly

210 moving part

211 abutting portion

211a of a through hole

212 positioning structure

212a first extension

212b second extension

213 limiting wall

213a gap

220 first Ring fixing Member

221 first engaging portion

222 first flange

223 first extension wall

230 second ring fixing member

231 second engaging portion

232 the second flange

233 second extension wall

240 fixing element

241 joining part

242 pressing part

A1 first axial direction

A2 second axial direction

A3 third axial direction

W1, W2 width

Detailed Description

In the following description, for purposes of explanation, numerous implementation details are set forth in order to provide a thorough understanding of the various embodiments of the present invention. It should be understood, however, that these implementation details are not to be interpreted as limiting the utility model. That is, in some embodiments of the utility model, such implementation details are not necessary. In addition, for the sake of simplicity, certain conventional structures and elements are shown in the drawings in a simplified schematic manner, and the same elements in different embodiments are labeled with the same reference numerals.

Referring to fig. 1, a partial perspective view of a projection apparatus 100 and a fixing assembly 200 according to some embodiments of the utility model is shown. As shown in fig. 1, in the present embodiment, the projection apparatus 100 includes a housing 110, an optical-mechanical module (not shown), and a projection lens assembly. The projection lens assembly is fixed to the opto-mechanical module. The optical-mechanical module includes optical elements (such as a light source, a reflector, a lens, a wavelength conversion element, a light equalizer …, etc.) disposed inside the housing 110. The projection lens assembly includes a displacement module 120 and a lens module 130. Most components of the displacement module 120 are located in the housing 110 and connected between the optical module and the lens module 130. The displacement module 120 is configured to move the lens module 130 relative to the housing 110 in a plane parallel to the first axis a1 and the second axis a 2.

As shown in fig. 1, the displacement module 120 further includes a first knob 121 and a second knob 122. By rotating the first knob 121, the lens module 130 can be moved along the first axial direction a1 relative to the housing 110; by rotating the second knob 122, the lens module 130 may be moved along the second axial direction a2 relative to the housing 110. Therefore, the displacement module 120 can drive the lens module 130 to move in two dimensions. In some embodiments, the first axial direction a1 is perpendicular to the second axial direction a2, but the utility model is not limited thereto.

In some embodiments, as shown in fig. 1, the first knob 121 and the second knob 122 can be designed to have a shape similar to a pick, so as to be suitable for a user to rotate.

As shown in fig. 1, in the present embodiment, the lens module 130 includes a first adjustment ring 131 and a second adjustment ring 132. The first adjusting ring 131 and the second adjusting ring 132 are arranged along a third axis A3 and configured to rotate around a third axis A3. In the present embodiment, the third axial direction A3 is perpendicular to the first axial direction a1 and the second axial direction a2, but the utility model is not limited thereto. The first adjusting ring 131 is arranged between the displacement module 120 and the second adjusting ring 132. The lens module 130 may include a plurality of lenses 133 therein. In some embodiments, the size of the projection image can be adjusted by rotating the first adjustment ring 131 to move a portion of the lenses 133 inside the lens module 130 in a direction parallel to the third axis a 3; by rotating the second adjustment ring 132 to move another part of the lenses 133 inside the lens module 130 in a direction parallel to the third axis a3, the focal length of the projection image can be adjusted.

As shown in fig. 1 and 5, in the present embodiment, the first adjusting ring 131 and the second adjusting ring 132 have a first shifting piece 131a and a second shifting piece 132a, respectively, for a user to shift and conveniently rotate the first adjusting ring 131 and the second adjusting ring 132.

In some embodiments, the lens module 130 may include only one of the first adjustment ring 131 and the second adjustment ring 132. For example, the lens module 130 may only include the second adjustment ring 132, and when using the projector, a user needs to adjust the position of the projector to project a desired projection image size, and then adjust the focal length of the projection image by rotating the second adjustment ring 132.

Please refer to fig. 2 to 4. Fig. 2 is a perspective exploded view illustrating a part of the components of the fixing assembly 200 of fig. 1. Fig. 3 is another perspective exploded view of the second ring fixing member 230 of fig. 2 assembled on the moving member 210. Fig. 4 is a perspective assembly view showing the elements in fig. 2. As shown in fig. 1 to 4, in the present embodiment, the fixing assembly 200 is applied to the projection apparatus 100 and includes a moving member 210, a first ring fixing member 220 and a second ring fixing member 230. The first ring holder 220 and the second ring holder 230 are rotatably engaged with the moving member 210. The second ring fixing member 230 is disposed between the first ring fixing member 220 and the moving member 210.

Specifically, the moving member 210 includes an abutting portion 211 and a limiting wall 213. The abutting portion 211 is connected to the stopper wall 213 and is bent with respect to the stopper wall 213. The first ring fixing member 220 includes a first flange 222 and a first extension wall 223 that are connected to each other and bent with respect to each other. The second ring fixing member 230 includes a second flange 232 and a second extension wall 233 connected to each other and bent with respect to each other. The first extension wall 223 is rotatably limited at the inner side of the second extension wall 233. The second extension wall 233 is rotatably limited at the inner side of the limiting wall 213 and the outer side of the first extension wall 223. The first flange 222 of the first ring fixing member 220 slidably abuts against the second flange 232 of the second ring fixing member 230, the second flange 232 of the second ring fixing member 230 slidably abuts against the abutting portion 211 of the moving member 210, and the second flange 232 is limited between the abutting portion 211 and the first flange 222. In some embodiments, the limiting wall 213, the first extension wall 223 and the second extension wall 233 are substantially sleeve-shaped and adapted to be sleeved outside the first adjusting ring 131 and the second adjusting ring 132.

As shown in fig. 2 to 4, in the present embodiment, the first ring holder 220 further includes a first engaging portion 221. The first engaging portion 221 forms a groove structure configured to engage with the first pulling piece 131a of the first adjusting ring 131. The second ring fixing member 230 further includes a second engaging portion 231. The second engaging portion 231 forms a groove structure configured to engage with the second pulling piece 132a of the second adjusting ring 132.

It should be noted that the combination form between the first pulling piece 131a of the first adjusting ring 131 and the first engaging portion 221 of the first ring fixing member 220 is not limited to the above-mentioned engaging form, and may be a pressing form in practical application. Similarly, the combination form between the second pulling piece 132a of the second adjusting ring 132 and the second engaging portion 231 of the second ring fixing member 230 is not limited to the above-mentioned engaging form, and may be a pressing form in practical application.

Please refer to fig. 5 to 7. Fig. 5 is a partial front view of the projection apparatus 100 in fig. 1. Fig. 6 is a partial front view illustrating the projection apparatus 100 and the fixing assembly 200 in fig. 1. FIG. 7 is a partial cross-sectional view of the projection apparatus 100 and the fixing assembly 200 of FIG. 6 along line 7-7. As shown in fig. 5 to 7, in the present embodiment, the housing 110 has an engaging hole 111. The abutting portion 211 of the moving member 210 has a through hole 211 a. The fixing assembly 200 further includes a fixing member 240. The fixing element 240 includes a connecting portion 241 and a pressing portion 242. The engaging portion 241 is configured to pass through the through hole 211a and engage with the engaging hole 111 of the case 110. When the fixing element 240 presses the abutting portion 211 against the housing 110, the first flange 222 of the first ring fixing member 220 and the second flange 232 of the second ring fixing member 230 are clamped and fixed between the abutting portion 211 and the housing 110.

According to the above structure configuration, after the first adjusting ring 131 and the second adjusting ring 132 of the projection apparatus 100 are adjusted to be positioned, a user can first engage the first engaging portion 221 of the first ring fixing member 220 and the second engaging portion 231 of the second ring fixing member 230 with the first pulling piece 131a and the second pulling piece 132a, respectively, and then engage the moving member 210 to the housing 110 of the projection apparatus 100 by using the fixing element 240, so that the first ring fixing member 220 and the second ring fixing member 230 can be clamped and fixed between the moving member 210 and the housing 110. Therefore, the fixing component 200 of the present invention can effectively solve the problems of the adjusted picture running off and distortion caused by the sudden external force.

In some embodiments, the engaging portion 241 of the fixing element 240 is a screw, and the pressing portion 242 of the fixing element 240 is a washer, but the utility model is not limited thereto. In practical applications, the engaging portion 241 and the pressing portion 242 of the fixing element 240 may also be two portions of a single screw.

As shown in fig. 2 to 4, in the present embodiment, the moving element 210 further includes a plurality of positioning structures 212. The positioning structure 212 connects the abutment 211. The first flange 222 is rotatably positioned between the locating structures 212. For example, each positioning structure 212 includes a first extension 212a and a second extension 212 b. The first extension 212a connects the abutment portion 211 and is configured to abut against an edge of the first flange 222. The second extending portion 212b is connected to the first extending portion 212a and extends to a side of the first flange 222 away from the abutting portion 211. Thereby, the first flange 222 is retained between the abutting portion 211 and the second extending portion 212 b. In practical applications, the moving member 210 and the first ring fixing member 220 are relatively rotated to make the first flange 222 enter and leave the gap between the abutting portion 211 and the second extending portion 212b, so that the moving member 210 and the first ring fixing member 220 can be assembled and disassembled with each other. With the above-mentioned structure configuration, the moving member 210, the first ring holder 220 and the second ring holder 230 can be assembled together, so that a user can fix the moving member to the projection apparatus 100 conveniently.

As shown in fig. 2 to 4, in the present embodiment, the limiting wall 213 of the moving member 210 has a notch 213 a. The first engaging portion 221 of the first ring fixing member 220 is connected to the first flange 222 and protrudes from the notch 213a to the outside of the limiting wall 213. In addition, the second extension wall 233 of the second ring fixing member 230 is connected between the second flange 232 and the second engaging portion 231, and the second engaging portion 231 is located inside the limiting wall 213. Therefore, when the first ring fixing element 220 and the second ring fixing element 230 rotate relative to the moving element 210, the first engaging portion 221 and the second engaging portion 231 are prevented from interfering with each other at the notch 213 a.

In some embodiments, as shown in fig. 4, the first engaging portion 221 is an engaging groove formed on the first flange 222 and the first extending wall 223, and the second engaging portion 231 is an engaging groove connected to an annular structure of an end of the second extending wall 233 far away from the second flange 232, but the utility model is not limited thereto.

As shown in fig. 7, in the present embodiment, the width W2 of the through hole 211a is much larger than the width of the engaging portion 241 of the fixing element 240, so that the through hole 211a can allow the engaging portion 241 to pass through and move laterally, so that the moving element 210, the first ring holder 220 and the second ring holder 230 can move together with the lens module 130 of the projection apparatus 100 relative to the housing 110. It should be noted that the width W1 of the pressing portion 242 of the fixing element 240 is greater than the width W2 of the through hole 211a of the moving element 210. Therefore, no matter where the moving member 210 moves relative to the housing 110, the pressing portion 242 at least partially overlaps the inner edge of the through hole 211a, thereby ensuring the function of the fixing element 240 for fixing the moving member 210 to the housing 110.

As can be clearly seen from the above detailed description of the embodiments of the present invention, after the adjusting ring of the projection apparatus is adjusted to the positioning position, the ring fixing member can be clamped and fixed between the moving member and the housing by first engaging the engaging portion of the ring fixing member of the fixing assembly with the pick of the adjusting ring, and then engaging the moving member to the housing of the projection apparatus by using the fixing element of the fixing assembly. Therefore, the fixing component can effectively solve the problems of the adjusted picture escaping and distortion caused by the sudden external force. In addition, the through hole of the moving part can allow the connecting part of the fixing element to pass through and move laterally, so that the moving part and the ring fixing part can move together with the lens module of the projection device relative to the shell of the projection device. By making the width of the fixing element larger than the width of the through hole, the fixing element can fix the moving element to the shell no matter where the moving element moves relative to the shell.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A fixing assembly applied to a projection device, the projection device comprising a housing and a lens module configured to move relative to the housing, the lens module comprising a first adjusting ring having a first pick, the fixing assembly comprising:

a moving member including an abutting portion having a through hole;

a first ring fixing piece which can be rotatably connected with the moving piece and comprises a first clamping part configured to clamp the first shifting piece; and

a fixing element including an engaging portion configured to pass through the through hole and engage with the housing,

wherein a width of the fixing element is greater than a width of the through hole, and when the fixing element presses the abutting portion toward the housing, the first ring fixing member is clamped and fixed between the moving member and the housing.

2. The fastening assembly of claim 1, wherein the fastening member further comprises a pressing portion at least partially overlapping an inner edge of the through hole.

3. The fastening assembly of claim 1, wherein the first ring fastener includes a first flange, and the first flange is clamped between the abutment and the housing when the fastening element presses the abutment against the housing.

4. The securing assembly of claim 3, wherein the moveable member further comprises a plurality of locating structures, the plurality of locating structures are connected to the abutment portion, and the first flange is rotatably located between the plurality of locating structures.

5. The securing assembly of claim 4, wherein each of said locating structures comprises:

a first extension part connected with the abutting part and configured to abut against the edge of the first flange; and

and a second extending part connected with the first extending part, wherein the first flange is limited between the abutting part and the second extending part.

6. The fixing assembly as claimed in claim 3, wherein the moving member further comprises a limiting wall, the abutting portion is connected to the limiting wall and bent relative to the limiting wall, the limiting wall has a gap, and the first engaging portion is connected to the first flange and protrudes from the gap to the outside of the limiting wall.

7. The fixing assembly as claimed in claim 1, wherein the moving member further comprises a limiting wall, the abutting portion is connected to the limiting wall and is bent relative to the limiting wall, and the first ring fixing member further comprises a first extending wall rotatably limited at an inner side of the limiting wall.

8. The fixing assembly of claim 1, wherein the projection apparatus further comprises a second adjusting ring having a second paddle, the fixing assembly further comprising a second ring fixing member rotatably engaged with the moving member and having a second engaging portion configured to engage with the second paddle.

9. The securing assembly of claim 8, wherein the second ring securing member is captured between the first ring securing member and the moveable member.

10. The fastening assembly of claim 8, wherein the second ring retainer comprises a second flange, and the second flange is clamped between the abutment and the housing when the fastening element presses the abutment against the housing.

11. The fixing assembly as claimed in claim 10, wherein the moving member further comprises a limiting wall, the abutting portion is connected to the limiting wall and is bent relative to the limiting wall, and the second ring fixing member further comprises a second extending wall rotatably limited inside the limiting wall.

12. The fixing assembly of claim 11, wherein the second extending wall is connected between the second flange and the second engaging portion, and the second engaging portion is located inside the limiting wall.