CN211348966U

CN211348966U - Adjustable fixing device and projection system

Info

Publication number: CN211348966U
Application number: CN202020150101.8U
Authority: CN
Inventors: 周岳平; 陈家荣; 王志豪
Original assignee: Coretronic Corp
Current assignee: Coretronic Corp
Priority date: 2019-06-10
Filing date: 2020-02-03
Publication date: 2020-08-25
Anticipated expiration: 2030-02-03

Abstract

The adjustable fixing device comprises a base, a first fixing piece, a first adjusting mechanism and a second adjusting mechanism. The base has first and second elongated slots. The first fixing member includes first and second screw holes. The first adjusting mechanism comprises a first sliding part, a first adjusting screw and a first group of gasket screws, the first adjusting screw is connected with the first screw hole along the second direction, the first sliding part is connected with the first group of gasket screws through a first strip-shaped hole groove, and the position of the first fixing part is adjusted by the first adjusting screw of the first adjusting mechanism along the second direction. The second adjusting screw of the second adjusting mechanism adjusts the position of the first fixing piece along the first direction. The utility model discloses provide projection system in addition, contain projector and above-mentioned adjustable fixing device, wherein this adjustable fixing device is used for the projection lens's of centre gripping projector partly. The utility model discloses a fixing device with adjustable when being applied to the projector, can finely tune projection lens to in response to the user demand of difference, convenience of customers operation.

Description

Adjustable fixing device and projection system

Technical Field

The present invention relates to a fixing device and a projection system, and more particularly to an adjustable fixing device and a projection system using the same.

Background

The known projection lens is fixed on the projector, and after the assembly is completed, the position of the projection lens is substantially fixed, so that the position of the projection lens is difficult to further fine-tune.

The background section is only for the purpose of illustrating the present invention, and therefore the disclosure in the background section may include some known techniques that do not constitute the knowledge of those skilled in the art. Furthermore, the disclosure of the "background" does not represent that item or the problem to be solved by one or more embodiments of the present invention, nor is it representative of what has been known or appreciated by those of ordinary skill in the art prior to the filing of the present application.

SUMMERY OF THE UTILITY MODEL

The utility model provides a fixing device with adjustable, its first mounting can adjust along first direction and second direction for the base, borrows this position that can finely tune the object of installing on first mounting.

The utility model provides a projection system, it contains foretell adjustable fixing device for the position at the lens position outside the casing of projector can finely tune.

Other objects and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

To achieve one or a part or all of the above or other purposes, the present invention provides an adjustable fixing device, which includes a base, a first fixing member, a first adjusting mechanism and a second adjusting mechanism. The base is provided with a first long strip hole groove and a second long strip hole groove, wherein the first long strip hole groove extends along a first direction, the second long strip hole groove extends along a second direction, and the first direction is perpendicular to the second direction. The first fixing piece is movably arranged on one side of the base and comprises a first screw hole extending along the second direction and a second screw hole extending along the first direction. The first adjusting mechanism comprises a first sliding part, a first adjusting screw and a first group of shim screws, wherein the first adjusting screw is in threaded connection with the first screw hole along the second direction, the first sliding part is connected with the first group of shim screws through a first long strip hole groove, so that the base is located between the first sliding part and the first group of shim screws, and the first adjusting screw of the first adjusting mechanism is used for adjusting the position of the first fixing part relative to the base along the second direction. The second adjusting mechanism comprises a second sliding part, a second adjusting screw and a second group of shim screws, wherein the second adjusting screw is in threaded connection with the second screw hole along the first direction, the second sliding part is connected with the second group of shim screws through a second long strip hole groove, so that the base is located between the second sliding part and the second group of shim screws, and the second adjusting screw of the second adjusting mechanism is used for adjusting the position of the first fixing part relative to the base along the first direction.

The utility model discloses a projection system, fixing device with adjustable including projector and. The projector comprises a shell, a light source module, a light valve and a projection lens. The light source module is positioned in the machine shell and used for providing an illuminating light beam. The light valve is located in the casing and configured on the transmission path of the illumination beam, and is used for converting the illumination beam into an image beam. The projection lens is configured on the transmission path of the image light beam and is used for projecting the image light beam, wherein the projection lens comprises a first part and a second part, the first part is positioned in the shell, and the second part is positioned outside the shell. The adjustable fixing device comprises a base, a first fixing piece, a first adjusting mechanism and a second adjusting mechanism. The base is provided with a first long strip hole groove and a second long strip hole groove, wherein the first long strip hole groove extends along a first direction, the second long strip hole groove extends along a second direction, and the first direction is perpendicular to the second direction. The first fixing piece is movably arranged on one side of the base and comprises a first screw hole extending along the second direction and a second screw hole extending along the first direction. The first adjusting mechanism includes a first sliding member, a first adjusting screw and a first set of shim screws, wherein the first adjusting screw is in threaded connection with the first screw hole along the second direction, wherein the first sliding member is connected with the first set of shim screws through the first elongated slot, so that the base and the first fixing member are located between the first sliding member and the first set of shim screws, and wherein the first adjusting mechanism is used for adjusting the position of the first fixing member relative to the base along the second direction. The second adjusting mechanism comprises a second sliding part, a second adjusting screw and a second group of shim screws, wherein the second adjusting screw is in threaded connection with the second screw hole along the first direction, the second sliding part is connected with the second group of shim screws through a second long strip hole groove, so that the base and the first fixing part are located between the second sliding part and the second group of shim screws, and the second adjusting screw is used for adjusting the position of the first fixing part relative to the base along the first direction.

Based on the foregoing, the utility model discloses a fixing device with adjustable utilizes first guiding mechanism to come to follow the position of second direction adjustment first mounting for the base, and utilizes the second adjusting screw to come to follow the position of first direction adjustment first mounting for the base for the article of installing on first mounting can finely tune in first direction and second direction for the position of base, and convenience of customers operates. When the adjustable fixing device of the present invention is applied to a projector, a portion of the projection lens exposed out of the casing of the projector can be finely adjusted to meet different requirements.

In order to make the aforementioned and other features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic diagram of a projection system according to an embodiment of the present invention;

fig. 2A to 3C are schematic views of adjustable fixing devices according to some embodiments of the present invention from multiple viewing angles;

FIGS. 4A-4B are exploded views of the adjustable fixing device of FIG. 2A from multiple viewing angles;

FIG. 5 is a cross-sectional view of the adjustable fixing device of FIG. 2A along the line A-A.

Description of reference numerals:

a1, A2: an extension line;

d1: a first direction;

d2: a second direction;

h1, H2: a distance;

h3, H4, H5, H6: a distance;

l1: an illumination beam;

l2: an image beam;

o: a center;

10: a projection system;

20: a projector;

30: a housing;

40: a light source module;

50: a light valve;

60: a projection lens;

61: a first portion;

62: a second portion;

100: an adjustable fixing device;

110: a base;

111: a first elongated slot;

112: a second elongated slot;

113: opening a hole;

114: a limiting surface;

115: a first support section;

116: a second support portion;

120: a first fixing member;

121: a first boss;

122: a first screw hole;

123: a second boss;

124: a second screw hole;

125: a convex column;

130: a first adjustment mechanism;

131: a first slider;

132: a first slider portion;

133: a third screw hole;

134: a first recess;

135: a first adjusting screw;

136: a first set of washer screws;

137: a first screw;

138: a first gasket;

139: a first elastic member;

140: a second adjustment mechanism;

141: a second slider;

142: a second slider portion;

143: a fourth screw hole;

144: a second recess;

145: a second adjusting screw;

146: a second set of washer screws;

147: a second screw;

148: a second gasket;

149: a second elastic member;

150: a second fixing member;

152: a clamping space;

160: and a third fixing member.

Detailed Description

The foregoing and other features, aspects and utilities of the present invention will be apparent from the following more particular description of a preferred embodiment of the invention as illustrated in the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology is used for purposes of illustration and is in no way limiting.

Fig. 1 is a schematic diagram of a projection system according to an embodiment of the present invention. It should be noted that fig. 1 schematically illustrates only some components of the projection system 10, and the dimensions and the arrangement of these components of the projection system 10 are not limited thereto. Referring to fig. 1, a projection system 10 of the present embodiment includes a projector 20 and an adjustable fixing device 100. In detail, the projector 20 includes a housing 30, a light source module 40, a light valve 50, and a projection lens 60. The light source module 40 is located in the housing 30 and can provide an illumination beam L1. In the present embodiment, the light source module 40 is exemplified by a laser light source. For example, the light source module 40 may include a plurality of laser diodes (not shown) arranged in an array, but the light source module 40 may also be a light emitting diode or a lamp (lamp), and the invention is not limited thereto.

The light valve 50 is disposed in the housing 30 and on the transmission path of the illumination beam L1, and can convert the illumination beam L1 into the image beam L2. In the present embodiment, the light valve 50 is, for example, a digital micro-mirror device (DMD) or a Liquid Crystal On Silicon (LCOS) panel. However, in other embodiments, the light valve 50 may be a transmissive liquid crystal panel or other light beam modulator.

The projection lens 60 is disposed on the transmission path of the image light beam L2 and can project the image light beam L2, wherein the projection lens 60 includes a first portion 61 and a second portion 62, the first portion 61 is located inside the housing 30, and the second portion 62 is located outside the housing 30. In the embodiment, the adjustable fixing device 100 is disposed outside the housing 30 and is used for clamping the second portion 62 of the projection lens 60 outside the housing 30 to finely adjust the position of the second portion 62 of the projection lens 60. The adjustable fixing device 100 will be explained below.

Fig. 2A to 3C are schematic views of adjustable fixing devices according to some embodiments of the present invention with multiple viewing angles. Fig. 4A to 4B are exploded views of the adjustable fixing device of fig. 2A from multiple viewing angles. Referring to fig. 2A to 4B, in an embodiment, the adjustable fixing device 100 includes a base 110, a first fixing member 120, a first adjusting mechanism 130, and a second adjusting mechanism 140. As shown in fig. 4A and 4B, the base 110 has a first elongated hole 111 and a second elongated hole 112, wherein the first elongated hole 111 extends along a first direction D1, the second elongated hole 112 extends along a second direction D2, and the first direction D1 is perpendicular to the second direction D2.

The first fixing member 120 is movably disposed at one side of the base 110, and includes a first screw hole 122 extending along the second direction D2 and a second screw hole 124 extending along the first direction D1. In one embodiment, the first fixing member 120 includes a first boss 121, and a first screw hole 122 is formed in the first boss 121. The first fixing member 120 further includes a second boss 123, and a second screw hole 124 is formed in the second boss 123.

In this embodiment, the adjustable fixing device 100 optionally further includes a second fixing element 150 detachably disposed on the first fixing element 120 to form a clamping space 152 together with the first fixing element 120, for example, the second fixing element 150 and the first fixing element 120 can be fixed by screws, but the invention is not limited thereto. The second portion 62 of the projection lens 60 may be located in the holding space 152. Of course, the adjustable fixing device 100 can be applied to other fields, and is not limited to holding the projection lens 60. When the clamped object is to be replaced, the screws for fixing the second fixing element 150 and the first fixing element 120 are loosened, so that the assembly and disassembly are convenient. The article to be held may be of any shape, for example: circular, square, diamond, etc., and the shape of the object to be clamped may be designed to correspond to the shape of the first fixing element 120 and the second fixing element 150, so long as the object can be clamped stably. Of course, in other embodiments, if the first fixing member 120 itself is a clamp or other structure that can be used to clamp or fix an object, in this case, the second fixing member 150 may not be provided.

In addition, in an embodiment, as shown in fig. 3A, the adjustable fixing device 100 further includes a third fixing member 160 fixed to the first fixing member 120, and the base 110 is located between the first fixing member 120 and the third fixing member 160. The third fixing member 160 can be fixed to the first fixing member 120 by screws, and the base 110 is slightly clamped between the first fixing member 120 and the third fixing member 160, so as to maintain a proper relative distance between the base 110 and the first fixing member 120. In some embodiments, the third fastener 160 may include two sub-fasteners. Of course, in other embodiments, the adjustable fixing device 100 can also enable the base 110 not to be separated or separated from the first fixing member 120 during the movement of the first fixing member 120 relative to the base 110 along the first direction D1 and the second direction D2, and in such embodiments, the third fixing member 160 can also be omitted.

In the present embodiment, the first adjusting mechanism 130 (fig. 2A and 2B) includes a first adjusting screw 135, a first sliding member 131 and two first set of shim screws 136 (shown in fig. 3A), wherein the first adjusting screw 135 is threadedly connected to the first screw hole 122 in the first boss 121 of the first fixing member 120 along the second direction D2. The first sliding member 131 and the first set of shim screws 136 (shown in fig. 3A) are connected via the first elongated hole 111 of the base 110, such that the base 110 is located between the first sliding member 131 and the first set of shim screws 136. In more detail, referring to fig. 2B and 3A, the base 110 is sandwiched between the first sliding member 131 and the first set of shim screws 136. The first sliding member 131 abuts against the first boss 121 of the base 110, and the first adjusting screw 135 passes through the first sliding member 131 and is fixed to the first boss 121 of the first fixing member 120, so that the position of the first fixing member 120 relative to the base 110 can be adjusted by rotating the first adjusting screw 135 of the first adjusting mechanism 130 along the second direction D2.

More specifically, as shown in fig. 4B, in the present embodiment, the first sliding member 131 includes two first sliding block portions 132 and a first recess 134 located between the two first sliding block portions 132, each first sliding block portion 132 has a third screw hole 133, the two first sliding block portions 132 extend into the first elongated hole 111, and each first set of shim screws 136 is threadedly connected to the third screw hole 133 of the corresponding first sliding block portion 132. In the embodiment, each of the first set of gasket screws 136 includes a first screw 137 and a first gasket 138, the first gasket 138 has a first through hole (not shown), the first gasket 138 is sleeved on the first screw 137, and the width of the first gasket 138 is greater than the width of the first long strip hole groove 111 (for example, the width of the first long strip hole groove 111 along the second direction D2), so that the first sliding member 131 is located on one side of the base 110, and the first gasket 138 and the nut of the first screw 137 are located on the other side of the base 110. However, the first set of washer screws 136 is not limited thereto, and in other embodiments, the first set of washer screws 136 may also include other screws, such as a first stepped screw, for connecting with the first sliding member 131 through the first elongated hole 111. In this case, the first gasket 138 may be omitted.

The first adjusting screw 135 passes through the first recess 134 (shown in fig. 4B) of the first sliding member 131 along the second direction D2, and is further threadedly coupled with the first screw hole 122. Since the nut of the first adjusting screw 135 is blocked by the first sliding member 131 in the second direction D2, the first adjusting screw 135 is not moved in the second direction D2 by rotating the first adjusting screw 135, the first adjusting screw 135 is rotated in the second direction D2, the first fixing member 120 screwed with the first adjusting screw 135 is driven to move in the second direction D2 relative to the base 110, and further the second portion 62 (fig. 1) of the projection lens 60 (fig. 1) in the clamping space 152 (fig. 2A) is moved in the second direction D2.

In addition, generally, the pitch of the threads of the first screw hole 122 in the first boss 121 is slightly larger than the pitch of the threads of the threaded portion of the first adjusting screw 135, so that the threaded portion of the first adjusting screw 135 can be easily screwed into the first screw hole 122 in the first boss 121. In this embodiment, in order to enable the first adjusting screw 135 to smoothly drive the first fixing element 120, the first adjusting mechanism 130 further optionally includes a first elastic element 139 (shown in fig. 4A and 4B), the first elastic element 139 is disposed around the threaded portion of the first adjusting screw 135 and abuts between the nut of the first adjusting screw 135 and the first boss 121, for example, one end of the first elastic element 139 abuts against the nut of the first adjusting screw 135, and the other end abuts against the first boss 121. The first elastic element 139 is used to push the first boss 121, so that the internal thread of the first screw hole 122 in the first boss 121 is tightly contacted with the threaded portion of the first adjusting screw 135, and the first adjusting screw 135 can drive the first fixing element 120 to move more smoothly. That is, the first elastic element 139 can solve the problem that the first adjusting screw 135 idles or loosens in the first screw hole 122 due to the backlash difference between the threaded portion of the first adjusting screw 135 and the internal thread of the first screw hole 122 in the first boss 121.

Similarly, in the present embodiment, the second adjusting mechanism 140 (fig. 2A and 2B) includes a second adjusting screw 145, a second sliding member 141, and a second set of shim screws 146 (shown in fig. 3B), wherein the second adjusting screw 145 is threadedly coupled to the second screw hole 124 of the second boss 123 of the first fixing member 120 along the first direction D1. In addition, the second sliding member 141 and the second set of gasket screws 146 (shown in fig. 3B) are connected via the second elongated hole 112, such that the base 110 is located between the second sliding member 141 and the second set of gasket screws 146. In more detail, referring to fig. 2B and 3A, the base 110 is sandwiched between the second slider 141 and the second set of washer screws 146. In addition, the second sliding member 141 abuts against the second boss 123 of the base 110, and the second adjusting screw 145 passes through the second sliding member 141 and is fixed to the second boss 123 of the first fixing member 120, so that the position of the first fixing member 120 relative to the base 110 can be adjusted by rotating the second adjusting screw 145 of the second adjusting mechanism 140 along the first direction D1.

More specifically, as shown in fig. 4B, in the present embodiment, the second sliding member 141 includes two second sliding block portions 142 and a second recess portion 144 located between the two second sliding block portions 142, each second sliding block portion 142 has a fourth screw hole 143, the two second sliding block portions 142 extend into the second elongated hole 112, and each second set of shim screws 146 is threadedly connected to the corresponding fourth screw hole 143 of the second sliding block portion 142. In the embodiment, the second set of washer screws 146 includes a second screw 147 and a second washer 148, the second washer 148 has a second through hole (not shown), the second washer 148 is sleeved on the second screw 147, and the width of the second washer 148 is greater than the width of the second elongated hole 112 (e.g., the width of the second elongated hole 112 along the first direction D1), so that the second sliding member 141 is located on one side of the base 110, and the second washer 148 and the nut of the second screw 147 are located on the other side of the base 110. However, the second set of washer screws 146 is not limited thereto, and in other embodiments, the second set of washer screws 146 may also include other screws, such as a second stepped screw, for connecting with the second sliding member 141 through the second elongated hole 112. In this case, the second gasket 148 may be omitted.

The second adjusting screw 145 passes through the second recess 144 (shown in fig. 4B) of the second sliding member 141 along the first direction D1, and is screwed with the second screw hole 124. Since the nut of the second adjusting screw 145 is blocked by the second sliding member 141 in the first direction D1, the second adjusting screw 145 is not moved in the first direction D1 by rotating the second adjusting screw 145, the second adjusting screw 145 is rotated in the first direction D1, the second fixing member 150 screwed with the second adjusting screw 145 is driven to move in the first direction D1 relative to the base 110, and the second portion 62 (fig. 1) of the projection lens 60 (fig. 1) in the clamping space 152 (fig. 2A) is further moved in the first direction D1.

In addition, the second adjusting mechanism 140 further includes a second elastic member 149 (shown in fig. 4A and 4B), the second elastic member 149 is disposed on the threaded portion of the second adjusting screw 145 and abuts between the nut of the second adjusting screw 145 and the second boss 123, for example, one end of the second elastic member 149 abuts against the nut of the second adjusting screw 145, and the other end abuts against the second boss 123. The second elastic element 149 is used to push the second boss 123, so that the internal thread of the second screw hole 124 in the second boss 123 is tightly contacted with the threaded portion of the second adjusting screw 145, so that the second adjusting screw 145 can drive the second fixing element 150 to move more smoothly. That is, the second elastic element 149 can solve the problem that the second adjusting screw 145 idles or loosens in the second screw hole 124 due to the backlash difference between the screw portion of the second adjusting screw 145 and the internal thread of the second screw hole 124 in the second boss 123.

It should be noted that, in the present embodiment, when the first adjusting mechanism 130 adjusts the position of the first fixing element 120 relative to the base 110 along the second direction D2, the two second sliding block portions 142 of the second sliding element 141 slide in the second elongated hole 112 correspondingly, so that the whole first fixing element 120 can move along the second direction D2 relative to the base 110. Similarly, when the second adjusting screw 145 adjusts the position of the first fixing member 120 relative to the base 110 along the first direction D1, the two first sliding block portions 132 of the first sliding member 131 slide in the first elongated hole 111 correspondingly, so that the whole first fixing member 120 can move along the first direction D1 relative to the base 110.

It should be noted that fig. 3C shows the third fixing element 160 by a dotted line, as shown in fig. 3C, in the present embodiment, one of the first fixing element 120 and the base 110 includes the pillar 125, and the other includes the opening 113, in the present embodiment, the first fixing element 120 includes the pillar 125, and the base 110 includes the opening 113, but the invention is not limited thereto. The opening 113 is surrounded by a plurality of limiting surfaces 114, in the embodiment, the opening 113 is a square hole surrounded by four limiting surfaces 114, but the form of the opening 113 is not limited thereto. The protruding pillar 125 protrudes into the opening 113, wherein a minimum distance H1 between the first fixing member 120 and the first sliding member 131 in the second direction D2 is greater than or equal to a movable distance H3 (i.e., a distance between the protruding pillar 125 and the right limiting surface 114) of the protruding pillar 125 in the opening 113 near the base 110 in the second direction D2, and a minimum distance H2 between the first fixing member 120 and the second sliding member 141 in the first direction D1 is greater than or equal to a movable distance H4 (i.e., a distance between the protruding pillar 125 and the lower limiting surface 114) of the protruding pillar 125 in the opening 113 in the first direction D1 near the base 110. Such a design can prevent the first fixing element 120 from directly touching the base 110 when approaching the wall of the base 110, which would result in a large force being required to move the first fixing element 120 in the opposite direction.

In addition, in the present embodiment, the movable distance H6 of the first sliding block portion 132 in the first elongated hole slot 111 close to the base 110 is greater than or equal to the movable distance H4 of the protruding pillar 125 in the opening 113 close to the base 110 along the first direction D1, so as to prevent two side walls of the first elongated hole slot 111 from limiting the movable range of the first sliding block portion 132. The movable distance H5 of the second slider portion 142 near the base 110 in the second elongated hole 112 is greater than or equal to the movable distance H3 of the stud 125 near the base 110 in the second direction D2 in the opening 113, so as to prevent two side walls of the second elongated hole 112 from limiting the movable range of the second slider portion 142. In such a configuration, the movable distance of first mount 120 relative to base 110 along first direction D1 or second direction D2 is defined by the movable distance of post 125 in opening 113.

As shown in fig. 3B, in the present embodiment, the cross section of the object to be clamped (for example, the second portion 62 of the projection lens 60) is circular, the clamping space 152 is correspondingly circular, and the extension line a1 of the first adjustment mechanism 130 and the extension line a2 of the second adjustment mechanism 140 meet at the center O of the clamping space 152. In other words, the extension line a1 of the first adjustment mechanism 130 and the extension line a2 of the second adjustment mechanism 140 pass through the axis of the object to be clamped. In the present embodiment, when the first adjusting screw 135 is rotated, the second adjusting mechanism 140 correspondingly moves along the second direction D2, and similarly, when the second adjusting screw 145 is rotated, the first adjusting mechanism 130 correspondingly moves along the first direction D1. Since the force applying directions of the first and

second adjusting mechanisms

130 and 140 pass through the axial center of the object to be clamped, the first fixing member 120 is not twisted by the moment. Therefore, no matter how the first and second adjusting screws 135 and 145 are rotated, the extension line a1 of the first adjusting mechanism 130 and the extension line a2 of the second adjusting mechanism 140 pass through the axis of the object to be clamped, so that the force applied to the object to be clamped does not generate a moment.

In addition, as shown in fig. 2C, in the present embodiment, the base 110 includes a first supporting portion 115 located beside the first elongated hole 111 and a second supporting portion 116 located beside the second elongated hole 112, and the first supporting portion 115 and the second supporting portion 116 respectively support the first adjusting screw 135 and the second adjusting screw 145. More specifically, the first sliding member 131 and the first supporting portion 115 beside the first recess 134 form a space through which the first adjusting screw 135 can pass. The first adjusting screw 135 is abutted against the first supporting portion 115 to maintain stability. FIG. 5 is a cross-sectional view of the adjustable fixing device 100 of FIG. 2A along the line A-A. Referring to fig. 5, a space through which the second adjusting screw 145 can pass is surrounded by the portion of the second sliding member 141 beside the second recess 144 and the second supporting portion 116. The second adjusting screw 145 abuts against the second supporting portion 116 to maintain stability. In the present embodiment, the first supporting portion 115 and the second supporting portion 116 are formed by bending a portion of the base 110, but the forming method of the first supporting portion 115 and the second supporting portion 116 is not limited thereto.

To sum up, the utility model discloses a fixing device with adjustable utilizes first guiding mechanism to come to follow the position of second direction adjustment first mounting for the base, and utilizes the second adjusting screw to come to follow the position of first direction adjustment first mounting for the base, and makes the article of installing on first mounting finely tune the position in first direction and second side for the base, and convenience of customers operates. When the adjustable fixing device of the present invention is applied to a projector, a portion of the projection lens exposed out of the casing of the projector can be finely adjusted to meet different requirements.

The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, and all the simple equivalent changes and modifications made according to the claims and the specification of the present invention are still included in the scope covered by the present invention. Moreover, it is not necessary for any embodiment or claim of the invention to address all of the objects, advantages, or features disclosed herein. The abstract and the title of the present invention are only used for assisting the search of patent documents, and are not intended to limit the scope of the present invention. Furthermore, the terms "first," "second," and the like, as used herein and in the appended claims, are used merely to designate elements (elements) that are common names or to distinguish one embodiment from another, and are not intended to limit the upper or lower limit of a number of elements.

Claims

1. The utility model provides a fixing device with adjustable, its characterized in that, fixing device with adjustable includes base, first mounting, first guiding mechanism and second guiding mechanism, wherein:

the base is provided with a first long strip hole groove and a second long strip hole groove, wherein the first long strip hole groove extends along a first direction, the second long strip hole groove extends along a second direction, and the first direction is perpendicular to the second direction;

the first fixing piece is movably arranged on one side of the base and comprises a first screw hole extending along the second direction and a second screw hole extending along the first direction;

the first adjusting mechanism comprises a first sliding part, a first adjusting screw and a first set of shim screws, wherein the first adjusting screw is in threaded connection with the first screw hole along the second direction, wherein the first sliding part is connected with the first set of shim screws through the first elongated slot, such that the base is located between the first sliding part and the first set of shim screws, and wherein the first adjusting screw of the first adjusting mechanism is used for adjusting the position of the first fixing part relative to the base along the second direction; and

the second adjusting mechanism includes a second sliding member, a second adjusting screw, and a second set of shim screws, wherein the second adjusting screw is in threaded connection with the second screw hole along the first direction, wherein the second sliding member is in connection with the second set of shim screws via the second elongated slot such that the base is located between the second sliding member and the second set of shim screws, and wherein the second adjusting screw of the second adjusting mechanism is used to adjust the position of the first fixing member relative to the base along the first direction.

2. The adjustable fixture according to claim 1, wherein the first sliding member includes a first sliding block portion and a first recess, the first sliding block portion has a third screw hole, the first sliding block portion extends into the first elongated hole, the first set of shim screws are threaded into the third screw hole, and the first adjusting screw passes through the first recess of the first sliding member in the second direction and is threaded into the first screw hole.

3. The adjustable fixture according to claim 2, wherein the second sliding member includes a second sliding block portion and a second recess, the second sliding block portion has a fourth screw hole, the second sliding block portion extends into the second elongated hole, the second set of shim screws is threaded into the fourth screw hole, and the second adjusting screw is threaded into the second recess of the second sliding member along the first direction and is further threaded into the second screw hole.

4. The adjustable fixing device according to claim 1, wherein the first fixing member includes a first boss, the first screw hole is formed in the first boss, the first adjusting mechanism further includes a first elastic member, the first elastic member is sleeved on the screw thread portion of the first adjusting screw and abuts between the screw cap of the first adjusting screw and the first boss, the first fixing member further includes a second boss, the second screw hole is formed in the second boss, the second adjusting mechanism further includes a second elastic member, the second elastic member is sleeved on the screw thread portion of the second adjusting screw and abuts between the screw cap of the second adjusting screw and the second boss.

5. The adjustable fixing device according to claim 1, wherein one of the first fixing member and the base includes a convex pillar, and the other includes an opening, and the convex pillar extends into the opening, wherein a minimum distance between the first fixing member and the first sliding member along the second direction is greater than or equal to a movable distance of the convex pillar in the opening close to the base along the second direction, and a minimum distance between the first fixing member and the second sliding member along the first direction is greater than or equal to a movable distance of the convex pillar in the opening close to the base along the first direction.

6. The adjustable fixture according to claim 3, wherein one of the first fixture and the base comprises a boss and the other comprises an opening, the boss protruding into the opening, wherein a movable distance of the first slider portion in the first elongated hole slot near the base is greater than or equal to a movable distance of the boss in the opening near the base along the first direction, and a movable distance of the second slider portion in the second elongated hole slot near the base is greater than or equal to a movable distance of the boss in the opening near the base along the second direction.

7. The adjustable fixture according to claim 1, further comprising a second fixture detachably disposed on the first fixture to form a clamping space together with the first fixture.

8. The adjustable fixture according to claim 7, wherein the extension line of the first adjustment mechanism intersects the extension line of the second adjustment mechanism at a center of the clamping space.

9. The adjustable fixture according to claim 1, further comprising a third fixture fixed to the first fixture, wherein the base is located between the first fixture and the third fixture.

10. The adjustable fixture according to claim 9, wherein the third fixture comprises two sub-fixtures.

11. The adjustable fixture according to claim 1, wherein the base comprises a first support portion beside a first elongated slot and a second support portion beside a second elongated slot, the first and second support portions supporting the first and second adjusting screws, respectively.

12. The adjustable fixing device according to claim 1, wherein the first set of washer screws includes a first screw and a first washer, the first washer has a first through hole, the first washer is disposed on the first screw, the width of the first washer is greater than or equal to the width of the first elongated hole, the second set of washer screws includes a second screw and a second washer, the second washer has a second through hole, the second washer is disposed on the second screw, and the width of the second washer is greater than or equal to the width of the second elongated hole.

13. The adjustable fixture according to claim 1, wherein the first set of shim screws comprises a first step screw and the first step screw is connected to the first slide via the first elongated hole slot, wherein the second set of shim screws comprises a second step screw and the second step screw is connected to the second slide via the second elongated hole slot.

14. A projection system, comprising a projector, wherein:

the projector comprises a shell, a light source module, a light valve, a projection lens and an adjustable fixing device, wherein:

the light source module is positioned in the shell and used for providing an illuminating light beam;

the light valve is positioned in the shell and is configured on the transmission path of the illumination light beam and used for converting the illumination light beam into an image light beam;

the projection lens is configured on a transmission path of the image light beam and is used for projecting the image light beam, wherein the projection lens comprises a first part and a second part, the first part is positioned in the shell, and the second part is positioned outside the shell; and

the adjustable fixing device is arranged outside the shell of the projector and clamps the second part of the projection lens, wherein the adjustable fixing device comprises a base, a first fixing piece, a first adjusting mechanism and a second adjusting mechanism, wherein:

15. The projection system of claim 14, wherein the first sliding member includes a first sliding block portion and a first recess, the first sliding block portion has a third screw hole, the first sliding block portion extends into the first elongated hole, the first set of shim screws are threaded into the third screw hole, and the first adjusting screw is threaded into the first recess of the first sliding member along the second direction and is further threaded into the first screw hole.

16. The projection system of claim 15, wherein the second sliding member includes a second sliding block portion and a second recess portion, the second sliding block portion has a fourth screw hole, the second sliding block portion extends into the second elongated hole, the second set of shim screws is threaded into the fourth screw hole, and the second adjusting screw is threaded into the second recess portion of the second sliding member along the first direction and is further threaded into the second screw hole.

17. The projection system of claim 14, wherein the first fixing member includes a first boss, the first screw hole is formed in the first boss, the first adjusting mechanism further includes a first elastic member sleeved on the screw thread portion of the first adjusting screw and abutted between the screw cap of the first adjusting screw and the first boss, the first fixing member further includes a second boss, the second screw hole is formed in the second boss, the second adjusting mechanism further includes a second elastic member sleeved on the screw thread portion of the second adjusting screw and abutted between the screw cap of the second adjusting screw and the second boss.

18. The projection system of claim 14, wherein one of the first fixing member and the base includes a post and the other includes an opening into which the post extends, wherein a minimum distance between the first fixing member and the first slider in the second direction is greater than or equal to a movable distance of the post in the opening in the second direction near the base, and a minimum distance between the first fixing member and the second slider in the first direction is greater than or equal to a movable distance of the post in the opening in the first direction near the base.

19. The projection system of claim 16, wherein one of the first fixing member and the base includes a boss, and the other includes an opening into which the boss protrudes, wherein a movable distance of the first slider portion in the first elongated hole slot near the base is greater than or equal to a movable distance of the boss in the opening near the base in the first direction, and a movable distance of the second slider portion in the second elongated hole slot near the base is greater than or equal to a movable distance of the boss in the opening near the base in the second direction.

20. The projection system of claim 14, wherein the adjustable fixing device further comprises a second fixing member detachably disposed on the first fixing member to form a clamping space together with the first fixing member, wherein the second portion of the projection lens is located in the clamping space.

21. The projection system of claim 20, wherein the extension line of the first adjustment mechanism intersects the extension line of the second adjustment mechanism at a center of the clamping space.

22. The projection system of claim 14, wherein the adjustable fixing device further comprises a third fixing member fixed to the first fixing member, and the base is located between the first fixing member and the third fixing member.

23. The projection system of claim 22, wherein the third mount comprises two sub-mounts.

24. The projection system of claim 14, wherein the base comprises a first support portion disposed adjacent to a first elongated slot and a second support portion disposed adjacent to a second elongated slot, the first and second support portions supporting the first and second adjustment screws, respectively.

25. The projection system of claim 14, wherein the first set of washer screws includes a first screw and a first washer, the first washer has a first through hole, the first washer is disposed on the first screw, the first washer has a width greater than a width of the first elongated hole slot, the second set of washer screws includes a second screw and a second washer, the second washer has a second through hole, the second washer is disposed on the second screw, and the second washer has a width greater than a width of the second elongated hole slot.