CN220152258U - Projection equipment - Google Patents

Abstract

The utility model discloses projection equipment, which comprises a base, a fixed seat, a rotating assembly and a shell, wherein the fixed seat is arranged on the base; the fixing seat is provided with a connecting part; the fixed seat is detachably connected with the base; the rotating assembly comprises a rotating shaft, a friction structure, a locking piece and a mounting piece, one end of the rotating shaft penetrates through the connecting part and the friction structure, and the end part of the rotating shaft is detachably connected with the locking piece; two sides of the friction structure are respectively propped against the connecting part and the locking piece; the mounting piece is connected with the rotating shaft; the shell is detachably connected with the mounting piece. According to the technical scheme, the connecting part is arranged on the fixing seat, the rotating assembly is matched with the fixing seat, so that the projection equipment can realize stepless hovering under the action of the rotating assembly, the projection equipment has the advantage of changeable adjusting angle, and the use experience of a user is improved.

Description

Projection equipment

Technical Field

The present utility model relates to the field of electronic products, and in particular, to a projection device.

Background

A projector is a device that can project images or videos onto a curtain, and is widely used in homes, offices, schools, and entertainment venues. The conventional tele projector often needs to be additionally provided with a bracket with a rotatable angle when the angle is required to be adjusted, has few functions of angle adjustment, has few products with the function of angle adjustment, often selects a spring to pop up the supporting rod, or uses a torsion spring to load a turned sheet to carry out single limiting turning, and the projection equipment can have the problem that the adjustment angle is single and the user experience is poor.

Disclosure of Invention

The utility model mainly aims to provide a projection device, which aims to solve the problem that the user experience is poor due to single adjustment angle of the projection device.

To achieve the above object, the present utility model provides a projection apparatus comprising:

a base;

the fixing seat is provided with a connecting part; the fixed seat is detachably connected with the base; the rotating assembly comprises a rotating shaft, a friction structure, a locking piece and a mounting piece, one end of the rotating shaft penetrates through the connecting part and the friction structure, and the end part of the rotating shaft is detachably connected with the locking piece; two sides of the friction structure are respectively propped against the connecting part and the locking piece; the mounting piece is connected with the rotating shaft;

and the shell is detachably connected with the mounting piece.

Optionally, the base includes bottom plate and installation boss, the installation boss is located on the bottom plate, the fixing base set up in on the installation boss.

Optionally, a fence structure is arranged on the periphery of the mounting boss, an assembly groove is arranged at the bottom of the shell, and the mounting piece is connected with the bottom wall of the assembly groove.

Optionally, the rotating assembly further comprises a limiting piece, wherein the limiting piece is provided with a limiting hole, and the rotating shaft penetrates through the limiting hole; the periphery of the limiting piece is also provided with a limiting opening, one side of the connecting part is provided with a limiting protrusion, one side surface of the limiting piece is propped against the connecting part, and the limiting protrusion can slide in the limiting opening.

Optionally, the limiting opening comprises a fan-shaped opening, the limiting protrusion comprises a fan-shaped protrusion, and a central angle of the fan-shaped opening is larger than a central angle of the fan-shaped protrusion; the difference between the central angle of the fan-shaped opening and the central angle of the fan-shaped bulge is 10-20 degrees.

Optionally, the friction structure comprises a plurality of friction plates, the rotating shaft penetrates through the plurality of friction plates, and adjacent friction plates are propped against each other; and/or the number of the groups of groups,

the first end of the rotating shaft is provided with a nut, the second end of the rotating shaft is provided with a threaded connection portion, the locking piece comprises a nut, the nut is in threaded connection with the threaded connection portion, and the nut abuts against the connection portion.

Optionally, the surface of pivot is equipped with flat, the inner wall in spacing hole is equipped with first straight portion, first straight portion with flat laminating.

Optionally, the mounting includes installation department and first extension, the installation department be used for with the bottom side of casing is connected, the bottom of installation department is located to first extension, first extension is equipped with the through-hole, the pivot passes the through-hole, the inner wall of through-hole is equipped with the second straight portion, the second straight portion with flat laminating.

Optionally, the connecting portion includes a second extending portion and a third extending portion, where the second extending portion and the third extending portion are both disposed at the top of the fixing seat, and a space is provided between the second extending portion and the third extending portion; the inner side of the second extension part is propped against the friction plate, the inner side of the third extension part is propped against the friction plate, and the inner sides of the second extension part and the third extension part are both provided with the limit protrusions;

the projection device comprises two sets of rotating assemblies which are oppositely arranged, wherein one set of rotating assemblies is connected with the second extension part, and the other set of rotating assemblies is connected with the third extension part.

Optionally, the projection device further includes a reinforcing plate, the reinforcing plate is disposed in the housing, and the reinforcing plate is in threaded connection with the mounting member.

According to the technical scheme, the connecting part is arranged on the fixing seat, the rotating assembly is rotatably connected with the connecting part, and the purpose of stepless regulation is achieved; the fixing seat is detachably connected with the base, the base enables the projection equipment to stand on the placement plane, one end of the rotating shaft penetrates through the connecting part, the friction structure and the locking piece, the rotating shaft is connected with the mounting piece, the mounting piece is detachably connected with the shell, and a user can apply external force on the shell to enable the shell and the mounting piece to rotate simultaneously and drive the rotating shaft to rotate; when the external force is removed, two sides of the friction structure are respectively propped against the connecting part and the locking piece, and the friction force between the friction structure and the connecting part and the friction force between the friction structure and the locking piece are utilized to enable the friction structure to be static relative to the connecting part, so that the rotating shaft can be stopped at a position at any angle; the rotating assembly is matched with the fixed seat, so that the projection equipment realizes stepless hovering under the action of the rotating assembly; the projection equipment has the advantage of changeable adjusting angles, and the use experience of a user is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an exploded view of an embodiment of a projection device according to the present utility model;

FIG. 2 is a schematic diagram of an embodiment of a projection apparatus according to the present utility model;

FIG. 3 is a schematic view illustrating an angle adjustment state of an embodiment of a projection apparatus according to the present utility model;

FIG. 4 is a schematic view of a fixing base and a rotating assembly of an embodiment of a projection apparatus according to the present utility model;

FIG. 5 is a schematic view of an exploded view of a mounting base and a rotating assembly of an embodiment of a projection apparatus according to the present utility model;

FIG. 6 is a schematic view illustrating a structure of a fixing base and a limiting member of an embodiment of a projection apparatus according to the present utility model;

FIG. 7 is a schematic view illustrating a structure of a rotating shaft of an embodiment of a projection apparatus according to the present utility model;

FIG. 8 is a schematic view of a mounting member of an embodiment of a projection apparatus according to the present utility model;

FIG. 9 is a schematic view of a fixing base and a rotating assembly of an embodiment of a projection apparatus according to the present utility model;

FIG. 10 is a schematic view of a fixing base and a rotating assembly of an embodiment of a projection apparatus according to the present utility model;

fig. 11 is a schematic diagram showing a disassembly structure of the fixing base, the rotating assembly and the reinforcing plate of an embodiment of the projection apparatus of the present utility model.

Reference numerals illustrate:

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if a directional indication (such as up, down, left, right, front, and rear … …) is involved in the embodiment of the present utility model, the directional indication is merely used to explain the relative positional relationship, movement condition, etc. between the components in a specific posture, and if the specific posture is changed, the directional indication is correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a projection device.

Referring to fig. 1 to 11, in an embodiment of the present utility model, the projection apparatus 100 includes a base 5, a fixing base 1, a rotating assembly 2, and a housing 4; the fixing seat 1 is provided with a connecting part 11; the fixed seat 1 is detachably connected with the base 5; the rotating assembly 2 comprises a rotating shaft 21, a friction structure 22, a locking piece 23 and a mounting piece 24, one end of the rotating shaft 21 passes through the connecting part 11 and the friction structure 22, and the end part of the rotating shaft 21 is detachably connected with the locking piece 23; both sides of the friction structure 22 are respectively abutted against the connecting part 11 and the locking piece 23; the mounting member 24 is connected to the rotating shaft 21.

In the structure, the connecting part 11 is arranged on the fixed seat 1, and the rotating assembly 2 is rotatably connected with the connecting part 11, so that the purpose of stepless regulation is realized; the fixing seat 1 is detachably connected with the base 5, the base 5 enables the projection device to stand on a placement plane, one end of the rotating shaft 21 penetrates through the connecting part 11, the friction structure 22 and is connected with the locking piece 23, the rotating shaft 21 is connected with the mounting piece 24, the mounting piece 24 is detachably connected with the shell 4, and a user can apply external force on the shell 4 to enable the shell 4 and the mounting piece 24 to rotate simultaneously and drive the rotating shaft 21 to rotate; when the external force is removed, two sides of the friction structure 22 are respectively propped against the connecting part 11 and the locking piece 23, and the friction force between the friction structure 22 and the connecting part 11 and the friction force between the friction structure 22 and the locking piece 23 are utilized to enable the friction structure 22 to be static relative to the connecting part 11, so that the rotating shaft 21 can be stopped at a current position with any angle; the rotating assembly 2 is matched with the fixed seat 1, so that the projection equipment realizes stepless hovering under the action of the rotating assembly 2; the projection equipment has the advantage of changeable adjusting angles, and the use experience of a user is improved.

Optionally, the base 5 includes a bottom plate and a mounting boss 51, the mounting boss 51 is disposed on the bottom plate, and the fixing base 1 is disposed on the mounting boss 51.

In the above structure, the mounting boss 51 is detachably connected with the bottom of the housing 4, and has an advantage of convenient installation.

Optionally, a fence structure 52 is provided on the periphery of the mounting boss 51, an assembly groove is provided on the bottom of the housing 4, and the mounting member 24 is connected to the bottom wall of the assembly groove.

In the above-described structure, the case 4 includes the rear case 41, the front case 42, the front cover 43, and the rear cover 44, the front case 42 and the rear case 41 are connected, the front cover 43 covers the front side of the front case 42, and the rear cover 44 covers the rear side of the rear case 41. The rear case 41, the front case 42, the front cover 43, and the rear cover 44 enclose a cavity for mounting the internal components of the projection apparatus 100 such as a projection light machine, a circuit board, and the like. The front cover 43 is detachably connected to the front side of the front housing 42, and the rear cover 44 is detachably connected to the rear side of the rear housing 41, which has the advantage of convenient assembly and disassembly. The bottom of back casing 41 is equipped with the assembly groove, the assembly groove with mounting 24 passes through the screw lock and pays, mounting 24 with fixing base 1 passes through the screw lock and pays, the periphery of installation boss 51 is around being equipped with rail structure 52, and rail structure 52 has the effect of hiding rotation component 2, improves projection arrangement's aesthetic property.

Alternatively, the fitting groove may be provided at the bottom of the front case 42, or the rear case 41 and the front case 42 may be integrally formed to constitute the main case, and the fitting groove may be provided at the bottom of the front case 42.

Optionally, the friction structure 22 includes a plurality of friction plates 221, and the rotating shaft 21 passes through the plurality of friction plates 221, and the adjacent friction plates 221 are abutted against each other.

Specifically, the friction structure 22 includes 6 friction plates 221, and the rotating shaft 21 passes through the 6 friction plates 221 by utilizing the friction force between the adjacent friction plates 221, and the rotating shaft 21 realizes stepless hovering by utilizing the friction force between the 6 friction plates 221, so that the device has the advantages of accurate angle and good strength. It will be appreciated that the number of friction plates 221 may be dependent on the weight, size, etc. of the projection device.

Optionally, the rotating assembly 2 further includes a limiting member 25, the limiting member 25 is provided with a limiting hole 251, and the rotating shaft 21 passes through the limiting hole 251; the periphery of the limiting piece 25 is further provided with a limiting opening 252, one side of the connecting portion 11 is provided with a limiting protrusion 111, one side surface of the limiting piece 25 abuts against the connecting portion 11, and the limiting protrusion 111 can slide in the limiting opening 252.

In the above structure, friction surfaces are disposed on two sides of the limiting member 25, one side surface of the limiting member 25 abuts against the connecting portion 11, the other side surface of the limiting member 25 abuts against the friction plate 221, the rotating shaft 21 passes through the limiting hole 251 to enable the limiting member 25 to be arranged on the rotating shaft 21 in a penetrating manner, the limiting member 25 is driven to rotate when the rotating shaft 21 rotates, at this time, the limiting protrusion 111 on one side surface of the limiting member 25 slides in the limiting opening 252, and the limiting protrusion 111 and the limiting opening 252 are matched, so that the limiting member has an effect of limiting the rotation angle range of the limiting member 25.

Optionally, the limiting opening 252 includes a fan-shaped opening, and the limiting protrusion 111 includes a fan-shaped protrusion, and a central angle of the fan-shaped opening is greater than a central angle of the fan-shaped protrusion; the difference between the central angle of the fan-shaped opening and the central angle of the fan-shaped bulge is 10-20 degrees.

Specifically, when the difference between the central angle of the fan-shaped opening and the central angle of the fan-shaped protrusion is 15 °, the rotation angle range of the limiting member 25 is 15 °, the limiting member 25 and the rotating shaft 21 rotate synchronously, that is, the limiting member 25 limits the rotation angle range of the rotating shaft 21 to 0 ° to 15 °, the rotating shaft 21 rotates within the 0 ° to 15 ° rotation interval, stepless hovering can be realized by using the damping action of the friction plate 221, that is, the rotating shaft 21 rotates without setting a gear, and the rotating shaft 21 stops rotating when the external force applied to the housing 4 is removed.

Optionally, a nut 211 is disposed at a first end of the rotating shaft 21, a threaded connection portion 21211 is disposed at a second end of the rotating shaft 21, and the locking member 23 includes a nut screwed with the threaded connection portion 21211, and the nut 211 abuts against the connection portion 11.

In the above structure, after the second end of the rotating shaft 21 sequentially passes through the connecting portion 11, the limiting member 25 and the plurality of friction plates 221, the end portion of the second end of the rotating shaft 21 is in threaded connection with the nut, and the nut 211 and the nut provide a pressing force for the connecting portion 11, the limiting member 25 and the plurality of friction plates 221, so that the friction force between the plurality of friction plates 221 is increased, and the rotating shaft 21 can realize stepless hovering. In addition, by providing the screw connection portion 21211 at the second end of the rotation shaft 21, the screw connection portion 21211 is screwed to the nut, and thus the assembly and disassembly are facilitated, and the connection is stable.

Optionally, the outer surface of the rotating shaft 21 is provided with a flat position 213, the inner wall of the limiting hole 251 is provided with a first flat portion 253, and the first flat portion 253 is attached to the flat position 213.

In the above structure, the flat portion 213 is provided on the rotation shaft 21, and the first flat portion 253 is provided on the inner wall of the limiting hole 251, so that the rotation shaft 21 and the limiting member 25 can be rotated synchronously by attaching the first flat portion 253 to the flat portion 213.

Optionally, a first extension portion 241 is provided at the bottom of the mounting member 24, the first extension portion 241 is provided with a through hole 242, the rotating shaft 21 passes through the through hole 242, a second straight portion 243 is provided on an inner wall of the through hole 242, and the second straight portion 243 is attached to the flat portion 213.

In the above structure, the second straight portion 243 is attached to the flat portion 213, so that the mounting member 24 can be fixed on the rotating shaft 21, so that the rotating shaft 21 and the mounting member 24 rotate synchronously, and the mounting member 24 is used for mounting the housing 4, so that when a user applies an external force to the housing 4, the mounting member 24 and the rotating shaft 21 are synchronously driven to rotate, and in the rotating process of the rotating shaft 21, the friction force between the friction plates 221 needs to be overcome, and when the external force is removed, the friction force between the friction plates 221 causes the rotating shaft 21 to stop at the current rotation angle position.

Optionally, the connecting portion 11 includes a second extending portion 112 and a third extending portion 113, where the second extending portion 112 and the third extending portion 113 are both disposed at the top of the fixing base 1, and a space is provided between the second extending portion 112 and the third extending portion 113; the inner sides of the second extending portion 112 and the third extending portion 113 are abutted against the friction plate 221, and the limiting protrusions 111 are respectively arranged on the inner sides of the second extending portion 112 and the third extending portion 113; the projection device 100 includes two sets of rotating assemblies 2 disposed opposite to each other, wherein one set of rotating assemblies 2 is connected to the second extension portion 112, and the other set of rotating assemblies 2 is connected to the third extension portion 113.

In the above structure, the two sets of rotating assemblies 2 are respectively connected with the second extending portion 112 and the third extending portion 113 of the fixing base 1, the mounting pieces 24 of the two sets of rotating assemblies 2 are arranged in an airplane wing like state, and the rotating stability of the projection device 100 can be improved by enabling the mounting pieces 24 of the two sets of rotating assemblies 2 to be simultaneously locked with the reinforcing plate 3, and meanwhile, the connection stability of the housing 4 and the mounting pieces 24 is improved.

Optionally, the projection device 100 further includes a reinforcing plate 3, where the reinforcing plate 3 is configured to be disposed on the housing 4, and the reinforcing plate 3 is screwed with the mounting member 24.

In the above structure, the reinforcing plate 3 is located in the housing 4, the reinforcing plate 3 and the mounting member 24 are located at the inner side and the outer side of the housing 4, and the reinforcing plate 3, the housing 4 and the mounting member 24 are locked by the screws, so that the connection stability of the projection apparatus 100 and the mounting member 24 can be improved. In addition, the external dimensions of the reinforcing plate 3, the external dimensions of the mounting member 24, and the thickness of the rotating shaft 21 can be adjusted according to the size of the projection apparatus 100,

according to the technical scheme, the connecting part 11 is arranged on the fixing seat 1, the rotating assembly 2 is rotatably connected with the connecting part 11, and the purpose of stepless regulation is achieved; the fixing seat 1 is detachably connected with the base 5, the base 5 enables the projection device to stand on a placement plane, one end of the rotating shaft 21 penetrates through the connecting part 11, the friction structure 22 and is connected with the locking piece 23, the rotating shaft 21 is connected with the mounting piece 24, the mounting piece 24 is detachably connected with the shell 4, and a user can apply external force on the shell 4 to enable the shell 4 and the mounting piece 24 to rotate simultaneously and drive the rotating shaft 21 to rotate; when the external force is removed, two sides of the friction structure 22 are respectively propped against the connecting part 11 and the locking piece 23, and the friction force between the friction structure 22 and the connecting part 11 and the friction force between the friction structure 22 and the locking piece 23 are utilized to enable the friction structure 22 to be static relative to the connecting part 11, so that the rotating shaft 21 can be stopped at a current position with any angle; the rotating assembly 2 is matched with the fixed seat 1, so that the projection equipment realizes stepless hovering under the action of the rotating assembly 2; the projection equipment has the advantage of changeable adjusting angles, and the use experience of a user is improved.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather, the equivalent structural changes made by the description and drawings of the present utility model or the direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (10)

1. A projection device, comprising:

a base;

the fixing seat is provided with a connecting part; the fixed seat is detachably connected with the base;

the rotating assembly comprises a rotating shaft, a friction structure, a locking piece and a mounting piece, one end of the rotating shaft penetrates through the connecting part and the friction structure, and the end part of the rotating shaft is detachably connected with the locking piece; two sides of the friction structure are respectively propped against the connecting part and the locking piece; the mounting piece is connected with the rotating shaft;

and the shell is detachably connected with the mounting piece.

2. The projection device of claim 1, wherein the base includes a base plate and a mounting boss disposed on the base plate, the anchor mount disposed on the mounting boss.

3. The projection device of claim 2, wherein the mounting boss has a rail structure at a periphery thereof, the housing has a mounting groove at a bottom thereof, the mounting member is coupled to a bottom wall of the mounting groove, and the rail structure extends into the mounting groove.

4. The projection device of claim 1, wherein the rotating assembly further comprises a limiting member, the limiting member having a limiting aperture, the rotating shaft passing through the limiting aperture; the periphery of the limiting piece is also provided with a limiting opening, one side of the connecting part is provided with a limiting protrusion, one side surface of the limiting piece is propped against the connecting part, and the limiting protrusion can slide in the limiting opening.

5. The projection device of claim 4, wherein the limit opening comprises a scalloped opening and the limit projection comprises a scalloped projection, the scalloped opening having a central angle greater than a central angle of the scalloped projection; the difference between the central angle of the fan-shaped opening and the central angle of the fan-shaped bulge is 10-20 degrees.

6. The projection device of claim 4, wherein the friction structure includes a plurality of friction plates, the shaft passing through the plurality of friction plates, adjacent ones of the friction plates being in abutment; and/or the number of the groups of groups,

the first end of the rotating shaft is provided with a nut, the second end of the rotating shaft is provided with a threaded connection portion, the locking piece comprises a nut, the nut is in threaded connection with the threaded connection portion, and the nut abuts against the connection portion.

7. The projection device of claim 6, wherein the outer surface of the shaft is provided with a flat, and the inner wall of the limiting hole is provided with a first flat portion, and the first flat portion is attached to the flat.

8. The projection device of claim 7, wherein the mounting member includes a mounting portion and a first extension portion, the mounting portion is configured to be connected to a bottom side of the housing, the first extension portion is disposed at a bottom of the mounting portion, the first extension portion is provided with a through hole, the rotation shaft passes through the through hole, an inner wall of the through hole is provided with a second straight portion, and the second straight portion is attached to the flat portion.

9. The projection device of any one of claims 6 to 8, wherein the connection portion includes a second extension portion and a third extension portion, the second extension portion and the third extension portion are both disposed on top of the fixing base, and a space is provided between the second extension portion and the third extension portion; the inner side of the second extension part is propped against the friction plate, the inner side of the third extension part is propped against the friction plate, and the inner sides of the second extension part and the third extension part are both provided with the limit protrusions;

the projection device comprises two sets of rotating assemblies which are oppositely arranged, wherein one set of rotating assemblies is connected with the second extension part, and the other set of rotating assemblies is connected with the third extension part.

10. The projection device of claim 8, further comprising a stiffening plate for positioning within the housing, the stiffening plate threadably coupled to the mounting member.