CN215117130U

CN215117130U - Laser projection host

Info

Publication number: CN215117130U
Application number: CN202121113429.3U
Authority: CN
Inventors: 周伯禹; 张健; 杨长明
Original assignee: Qingdao Hisense Laser Display Co Ltd
Current assignee: Qingdao Hisense Laser Display Co Ltd
Priority date: 2021-05-21
Filing date: 2021-05-21
Publication date: 2021-12-10
Anticipated expiration: 2031-05-21

Abstract

The embodiment of the application discloses laser projection host computer belongs to projection technical field. This laser projection host computer includes: a projection host body; the caster wheels are connected with the main body of the projection main machine and are used for supporting the main body of the projection main machine on the supporting body; the positioning assembly is used for being fixed on the supporting body and provided with a positioning groove, the supporting end of the caster is located in the positioning groove, and the positioning groove can block the displacement of the projection host body. In the embodiment of the application, the truckle that supports the projection host computer body is located locating groove of locating component to through the aversion of locating groove restriction projection host computer body, also be the locating groove on the locating component can form the position mark to the projection host computer body, thereby can directly realize the resetting of projection host computer body based on the locating groove on the locating component, improved the accuracy and the convenience that the projection host computer body resets.

Description

Laser projection host

Technical Field

The embodiment of the application relates to the technical field of projection, in particular to a laser projection host.

Background

With the continuous development of science and technology, laser projection equipment is more and more applied to the work and the life of people. At present, a laser projection device mainly comprises a laser projection host and a projection screen. The light outlet of the laser projection host faces the projection screen to emit light beams to the projection screen, and the projection screen is used for receiving the light beams to realize image display.

In the correlation technique, the laser projection host computer is generally placed on the supporter, and because the laser projection host computer is more and more light and handy, the risk that is touched and causes the aversion in the use is also bigger and bigger, in addition, when clean laser projection host computer or supporter, need shift the laser projection host computer, still need place its accuracy back to original position after the cleanness is accomplished again, because the slight position change of laser projection host computer will make the picture that shows take place the large-scale skew, the experience is watched to very influence, and current laser projection equipment trade has not been to the reset technique of above-mentioned condition yet, therefore, can only rely on the user to reset according to the picture that shows when the laser projection host computer resets.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a laser projection host computer, which can reset the displaced laser projection host computer more accurately and conveniently. The technical scheme is as follows:

a laser projection host, comprising:

a projection host body;

the caster wheels are connected with the main body of the projection main body and used for supporting the main body of the projection main body on a supporting body;

the positioning assembly is used for being fixed on the supporting body and provided with a positioning groove, the supporting end of the caster is located in the positioning groove, and the positioning groove can block the displacement of the projection host body.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

in the embodiment of the application, the truckle that supports the projection host computer body is located locating groove of locating component to through the aversion of locating groove restriction projection host computer body, also be the locating groove on the locating component can form the position mark to the projection host computer body, thereby can directly realize the resetting of projection host computer body based on the locating groove on the locating component, improved the accuracy and the convenience that the projection host computer body resets.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a laser projection host according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a positioning assembly for limiting a caster provided by an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a caster limiting structure provided by an embodiment of the present application;

FIG. 4 is a schematic structural view of another positioning assembly for limiting the position of a caster provided by an embodiment of the present application;

FIG. 5 is an exploded view of another embodiment of the present application showing the positioning assembly restraining the caster wheel;

fig. 6 is a schematic cross-sectional view illustrating a caster limiting structure of another positioning assembly according to an embodiment of the present disclosure.

Reference numerals:

1: a projection host body; 2: a caster wheel; 3: a positioning assembly; 4: a limiting component;

11: a bottom case;

21: a caster post; 22: a hand wheel; 23: a limiting structure;

31: positioning a groove; 32: and (7) bonding the layers.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present application more clear, the embodiments of the present application will be further described in detail with reference to the accompanying drawings.

Fig. 1 illustrates a schematic structural diagram of a laser projection host according to an embodiment of the present application, and fig. 2 illustrates a schematic structural diagram of a positioning assembly limiting a caster according to an embodiment of the present application. As shown in fig. 1, the laser projection host includes: a projection host body 1; the caster wheels 2 are connected with the main projection machine body 1 and used for supporting the main projection machine body 1 on a supporting body; locating component 3, locating component 3 is used for fixing on the supporter, and locating component 3 has constant head tank 31, and the support end of truckle 2 is located constant head tank 31, and constant head tank 31 can hinder the aversion of projection host computer body 1.

In the embodiment of the application, the truckle 2 of supporting projection host computer body 1 is located positioning groove 31 of locating component 3 to restrict the aversion of projection host computer body 1 through positioning groove 31, it is also that positioning groove 31 on locating component 3 can form the position mark to projection host computer body 1, thereby can directly realize the resetting of projection host computer body 1 based on positioning groove 31 on locating component 3, the accuracy and the convenience that projection host computer body 1 resets have been improved.

Wherein, the supporting body is a television cabinet, and the positioning component 3 is fixed on the cabinet surface of the television cabinet; or the supporting body is a supporting frame, and the positioning component 3 is fixed on the surface of the supporting frame; of course, the supporting body may have other structures as long as the fixing of the positioning assembly 3 can be achieved.

As shown in fig. 2, the threaded end of the caster 2 is screwed with the bottom case 11 of the main body 1 of the projector. The inhibition of the displacement of the main projection unit 1 means the inhibition of the displacement of the main projection unit 1 in any direction in the plane (i.e., the movement in any linear direction and the rotation in any circumferential direction in the plane).

In some embodiments, the number of the casters 2 is four, and the four casters 2 are respectively connected to four corners of the bottom case 11 of the main projection body 1.

The positioning assembly 3 has at least one positioning groove 31, and the supporting end of at least one caster 2 of the plurality of casters 2 is correspondingly limited in the at least one positioning groove 31. The number of the positioning grooves 31 may be specifically set according to the structure of the positioning grooves 31 and the structure of the supporting tube of the caster 2, and will be described in detail in the following embodiments.

In order to ensure the aesthetic appearance of the laser projection host, the casters 2 limited in the positioning slots 31 are preferably close to two casters 2 in the projection direction, i.e. the casters 2 close to the projection screen, so that the positioning assembly 3 can be far away from the user and the user cannot directly see the limiting assembly 4.

In some embodiments, the positioning assembly 3 has at least one positioning groove 31, in which case the positioning groove 31 is a prismatic groove or a pyramidal groove, and the supporting end of at least one caster 2 corresponding to the at least one positioning groove 31 has a structure matching the structure of the corresponding positioning groove 31.

Wherein, the supporting end of the caster 2 contacts with the inner wall of the positioning groove 31 with a clearance, and when the positioning groove 31 is a pyramid groove, the pyramid groove is in an inverted state. Like this, through the cooperation of constant head tank 31 and the truckle 2 support end, can avoid the removal and the rotation of truckle 2 to avoid the removal and the rotation of projection host computer body 1.

Illustratively, the positioning component 3 has a positioning groove 31, and the positioning groove 31 is a quadrangular prism groove, and correspondingly, the supporting end of the caster 2 corresponding to the positioning groove 31 has a quadrangular prism structure. Like this, when the support end of quadrangular prism was spacing in constant head tank 31, constant head tank 31 was spacing to the support end of truckle 2, can avoid the removal and the rotation of this truckle 2, and then avoided the removal and the rotation of projection host computer body 1.

In combination with the above structure, when the supporting end of the caster 2 is in a prism structure or a pyramid structure, the supporting end of the caster 2 cannot rotate, and at this time, in order to adjust the height of the projection main body 1 through the caster 2, optionally, the caster 2 includes a stud bolt and a supporting leg; stud's both ends respectively with projection host computer body 1 and supporting legs threaded connection, stud can adjust the distance between supporting legs and the projection host computer body 1, and the supporting legs is spacing in the constant head tank 31 that corresponds.

Wherein, the supporting legs is prismatic structure or inverted pyramid column structure, stud's first end and the top surface threaded connection of supporting legs, and stud's first end precession supporting legs's length is adjustable, stud's second end and the drain pan 11 threaded connection of projection host computer body 1, and stud's second end precession drain pan 11's length is adjustable. Like this, can adjust the distance between supporting legs and the drain pan 11 through rotatory stud, realize the adjustment to the support height of projection host computer body 1.

In order to facilitate the rotation of the stud bolt, the cross section of the middle part of the stud bolt is polygonal, or a hand wheel 22 is fixed in the middle part of the stud bolt.

Further, after the height of the projection host body 1 is adjusted by rotating the stud bolt, in order to fix the height of the projection host body 1, optionally, at least one nut is sleeved on the stud bolt, and at this time, if the number of the nuts is 1, the nuts can be screwed to the support legs or the bottom case 11; if the number of the nuts is 2, the two nuts can be screwed to the supporting legs and the bottom case 11 respectively. Like this, can increase the rotatory frictional force between the both ends of stud respectively and supporting legs and drain pan 11 through screwing of nut, and then restrict the relative rotation between stud and supporting legs and the drain pan 11, avoid the change that the height of projection host computer body 1 probably takes place. When the height of the projection main body 1 needs to be adjusted, the nut only needs to be unscrewed, and then the stud bolt is rotated. Of course, the relative rotation between the stud bolt and the supporting leg and the bottom case 11 may be limited in other ways besides through the nut, which is not limited in the embodiment of the present application.

In other embodiments, the positioning assembly 3 has a plurality of positioning grooves 31, the positioning grooves 31 are rotation grooves, and the supporting ends of the casters 2 corresponding to the positioning grooves 31 are rotation structures.

Wherein, the gyration groove is the groove that the cross section is circular, and revolution mechanic is the structure that the cross section is circular. Illustratively, the positioning slot 31 is a conical slot, and the supporting end of the caster 2 is in a conical structure; or the positioning groove 31 is a cylindrical groove, and the supporting end of the caster 2 is in a conical structure; or as shown in fig. 2, the positioning groove 31 is a conical groove, and the supporting end of the caster 2 is a hemispherical structure.

When the positioning groove 31 is a conical groove and the supporting end of the caster 2 is in a conical structure, the conical angle of the supporting end of the caster 2 is smaller than that of the positioning groove 31, so that the positioning groove 31 can support and limit the end point of the supporting end of the caster 2; or the supporting end of the caster 2 has a taper angle larger than that of the positioning groove 31 so that the opening edge of the positioning groove 31 forms a supporting limit to the side wall of the supporting end of the caster 2. When the positioning groove 31 is a cylindrical groove and the supporting end of the caster 2 is a conical structure, the maximum outer diameter of the supporting end of the caster 2 is larger than the inner diameter of the positioning groove 31, so that the opening edge of the positioning groove 31 can support and limit the side wall of the supporting end of the caster 2. When the positioning groove 31 is a conical groove and the supporting end of the caster 2 is a hemispherical structure, the inner wall or the opening edge of the positioning groove 31 can support and limit the side wall of the supporting end of the caster 2. Illustratively, as shown in fig. 2, the inner wall of the positioning groove 31 forms a support limit for the side wall of the support tube of the caster 2.

With the above structure, when the supporting end of the caster 2 is limited in the positioning groove 31, the caster 2 rotates and inclines relative to the center line of the caster 2, so that the positioning assembly 3 has a plurality of positioning grooves 31, and the supporting end of the caster 2 is supported by the positioning grooves 31 to be limited, thereby avoiding the displacement of the projection host body 1.

With the above-mentioned structure being combined, since the supporting end of the caster 2 can rotate relative to the positioning slot 31, in order to adjust the supporting height of the main projection unit body 1, optionally, as shown in fig. 2 or fig. 3, the caster 2 includes a caster column 21 and a handwheel 22; the threaded end of the caster post 21 is in threaded connection with the projection host body 1, the support end of the caster post 21 is limited in the corresponding positioning groove 31, and the hand wheel 22 is sleeved on the caster post 21 and can drive the caster post 21 to rotate synchronously.

As shown in fig. 2 or fig. 3, the threaded end of the caster post 21 is in threaded connection with the bottom case 11 of the main body 1 of the projector. Thus, the handwheel 22 can drive the caster post 21 to rotate, so as to adjust the length of the threaded end of the caster post 21 screwed into the bottom shell 11 of the main projection body 1, and adjust the height of the main projection body 1.

Wherein, the hand wheel 22 is fixed on the caster post 21 or is detachably sleeved on the caster post 21. For the case that the handwheel 22 is detachable, as shown in fig. 2 or fig. 3, the handwheel column 21 is provided with a limiting structure 23, the handwheel 22 is sleeved on the limiting structure 23, and the limiting structure 23 limits the handwheel 22 along the circumferential direction of the handwheel column 21, so that the handwheel column 21 can rotate synchronously when the handwheel 22 is rotated.

Optionally, the caster post 21 has a stepped surface towards the threaded end that projects past the stop formation 23. The hand wheel 22 can be supported on the step surface and sleeved on the limiting structure 23.

The limiting structure 23 is a gear-shaped structure protruding along the center line direction of the caster post 21, and may also be another structure protruding along the center line direction of the caster post 21, which is not limited in the embodiment of the present application.

Further, under the condition that caster post 21 has the step face, in order to realize the fixed of projection host computer body 1 height, as shown in fig. 4, laser projection host computer still includes spacing subassembly 4, and spacing subassembly 4 overlaps on caster post 21, and spacing subassembly 4 compresses tightly the step face, and with locating component 3 detachable fixed connection. Like this, because spacing subassembly 4 can compress tightly the step face of caster post 21 after with locating component 3 fixed connection to avoid the rotation of caster post 21, and then avoided the change that highly probably takes place of projection host computer body 1. When the height of the projection host body 1 needs to be adjusted, the limiting assembly 4 only needs to be detached to release the pressing of the limiting assembly 4 on the step surface of the caster post 21, and then the hand wheel 22 is rotated to drive the caster post 21 to rotate.

The height of the limiting structure 23 is greater than the thickness of the limiting component 4, so that the limiting component 4 can be conveniently pressed on the step surface, and then the limiting structure 23 can be exposed out of the limiting component 4, and the hand wheel 22 can be conveniently sleeved on the limiting structure 23.

Optionally, the limiting assembly 4 is a pressing cap, and the pressing cap is detachably and fixedly connected with the positioning assembly 3. Wherein, the cap that compresses tightly has the internal thread, and locating component 3 has the external screw thread, compresses tightly cap and 3 threaded connection of locating component.

In the embodiment of the present application, the positioning component 3 is made of plastic material, but the positioning component 3 may also be made of other materials, such as metal material. Compared with metal materials, the plastic materials have lower economic cost.

The positioning assembly 3 can be fixed on the support body in various ways. Alternatively, the positioning assembly 3 is fixed on the support body by screws; or the positioning component 3 is fixed on the supporting body by means of adhesion. Specifically, as shown in fig. 5 or fig. 6, the bottom surface of the positioning member 3 has an adhesive layer 32, and the adhesive layer 32 is used for adhering to the support body.

For the mode of fixing by screws, holes need to be formed in the supporting body, so that the supporting body can be damaged, and a special tool is also needed when the positioning assembly 3 is installed or disassembled, so that the fixing complexity of the positioning assembly 3 is increased; and to the fixed mode through bonding, then after confirming the position of locating component 3, only need tear off from type paper on the adhesive linkage 32, again with locating component 3 compress tightly on the supporter can.

Alternatively, the adhesive layer 32 is a common double-sided adhesive tape, or a easy-pull adhesive tape. When the easy-pulling glue is adopted, the easy-pulling glue can be easily pulled down when being removed due to high elongation, and residual glue can not be left, so that the subsequent cleaning is convenient.

When the positioning unit 3 is fixed, after the adjusted position of the main projection unit 1 is adjusted, the position of the positioning unit 3 is marked on the support, and then the main projection unit 1 is removed, and the positioning unit 3 is fixed by any of the above-described methods.

In the embodiment of the present application, the positioning assembly 3 has various implementation structures.

In some embodiments, the positioning assembly 3 comprises a first positioning member and a second positioning member; the first positioning member and the second positioning member are provided with positioning grooves 31, the supporting end of the first caster wheel in the plurality of caster wheels 2 is limited in the positioning groove 31 on the first positioning member, and the supporting end of the second caster wheel in the plurality of caster wheels 2 is limited in the positioning groove 31 on the second positioning member.

Wherein, in order to guarantee the aesthetic property of laser projection host computer, first truckle and second truckle are two truckles 2 that are close to the projection direction of projection host computer body 1 among four truckles 2, are also two truckles 2 that are close to the projection screen among four truckles 2.

The structure of the positioning groove 31, and the structures of the supporting end of the first caster and the supporting end of the second caster can be specifically described with reference to the above embodiments, which are not repeated herein in this application.

In connection with the fixing of the positioning assembly 3 according to the above embodiment, the bottom surfaces of the first positioning element and the second positioning element are both provided with an adhesive layer 32.

In other embodiments, the positioning assembly 3 includes a third positioning member having two positioning grooves 31, and the supporting end of the first caster and the supporting end of the second caster of the plurality of casters 2 are respectively limited in the two positioning grooves 31.

Therefore, compared with the situation that the positioning component comprises two positioning parts, the number of parts of the laser projection host can be reduced, so that the fixing error of the positioning component 3 is reduced, and meanwhile, the fixing efficiency of the positioning component 3 is improved.

In the embodiment of the application, the truckle that will support the projection host computer body is spacing in locating groove of locating component to through the aversion of locating groove restriction projection host computer body, also be the locating groove on the locating component can form the position mark to the projection host computer body, thereby can directly realize resetting of projection host computer body based on the locating groove on the locating component, improved accuracy and the convenience that the projection host computer body resets.

The above description is only illustrative of the embodiments of the present application and is not intended to limit the embodiments of the present application, and any modification, equivalent replacement, or improvement made within the spirit and principle of the embodiments of the present application should be included in the scope of the embodiments of the present application.

Claims

1. A laser projection host, comprising:

a projection host body;

2. The laser projection host of claim 1, wherein the positioning assembly has at least one positioning groove, the positioning groove is a prismatic groove or a pyramidal groove, and the supporting end of at least one caster corresponding to at least one positioning groove has a structure matching the structure of the corresponding positioning groove.

3. The laser projection host of claim 2, wherein the caster comprises a stud and a support foot;

the both ends of stud respectively with projection host computer body with supporting legs threaded connection, stud can adjust the supporting legs with the distance between the projection host computer body, the supporting legs is spacing in the constant head tank that corresponds.

4. The laser projection host of claim 1, wherein the positioning assembly has a plurality of positioning grooves, the positioning grooves are conical grooves, and end surfaces of the supporting ends of the casters corresponding to the positioning grooves one to one are hemispherical surfaces.

5. The laser projection host of claim 4, wherein the caster comprises a caster post and a handwheel;

the threaded end of the caster post is in threaded connection with the projection host body, the supporting end of the caster post is limited in the corresponding positioning groove, and the hand wheel is sleeved on the caster post and can drive the caster post to rotate synchronously.

6. The laser projection host of claim 5, wherein the caster post has a step surface facing the threaded end, the step surface protrudes to form a limiting structure, the hand wheel is detachably sleeved on the limiting structure, and the limiting structure limits the hand wheel along the circumferential direction of the caster post.

7. The laser projection host machine of claim 6, further comprising a limiting component, wherein the limiting component is sleeved on the caster post, compresses the step surface, and is detachably and fixedly connected with the positioning component.

8. The laser projection host of claim 7, wherein the limiting component is a compression cap, and the compression cap is detachably and fixedly connected with the positioning component.

9. The laser projection host of any of claims 1-8, wherein the positioning assembly comprises a first positioning member and a second positioning member;

the first positioning piece and the second positioning piece are provided with the positioning grooves, the supporting end of a first caster wheel in the caster wheels is limited in the positioning groove on the first positioning piece, and the supporting end of a second caster wheel in the caster wheels is limited in the positioning groove on the second positioning piece.

10. The laser projection host of claim 1, wherein the bottom surface of the positioning assembly has an adhesive layer for adhering to the support.