Projector hanging bracket

Abstract

The utility model provides a projector hanging bracket, and relates to the technical field of projector installation. The projector hanging bracket comprises a mounting plate, a positioning cylinder is arranged on the bottom side of the mounting plate, an adjusting cylinder matched with the positioning cylinder in a telescopic mode is arranged in the positioning cylinder, the end, away from the mounting plate, of the adjusting cylinder penetrates out of the side face of the positioning cylinder to be rotationally connected with a support adapter, and the support adapter is provided with a holder; an adjusting bolt is arranged on the outer side of the adjusting cylinder, a screw portion of the adjusting bolt sequentially penetrates through the positioning cylinder and the inner side of the adjusting cylinder, a sliding groove matched with the adjusting bolt in a telescopic mode is formed in the side wall of the adjusting cylinder, and the adjusting bolt in the adjusting cylinder is in threaded fit with a sliding block. A sliding rail in sliding fit with the sliding block is arranged in the adjusting cylinder, and the sliding rail is arranged in the extending direction of the adjusting cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of projector installation, in particular to a projector hanger. Background Art

[0002] A projector is an optical instrument that uses optical elements to magnify the outline of a workpiece and project it onto a screen. Projectors are widely used in teaching, large conferences and various occasions.

[0003] However, the fixing device of the projector is relatively simple, and the projector can usually only be fixed at a certain position, and the position cannot be changed according to the on-site situation. Utility Model Content

[0004] The utility model aims to provide a projector hanger, which realizes the angle adjustment of the projector, can change the position according to the on-site situation, and is more practical.

[0005] The technical solution of the utility model is achieved in this way:

[0006] The technical solution of the present application provides a projector hanger, comprising a mounting plate, a positioning cylinder is arranged on the bottom side of the mounting plate, an adjustment cylinder is arranged in the positioning cylinder to be telescopically matched with the positioning cylinder, one end of the adjustment cylinder away from the mounting plate passes through the side of the positioning cylinder and is rotatably connected to a bracket adapter, and the bracket adapter is provided with a pan / tilt head;

[0007] An adjusting bolt is arranged on the outer side of the adjusting cylinder, and the screw portion of the adjusting bolt passes through the inner sides of the positioning cylinder and the adjusting cylinder in sequence. A sliding groove which telescopically cooperates with the adjusting bolt is opened on the side wall of the adjusting cylinder. A sliding block is threadedly cooperated with the adjusting bolt in the adjusting cylinder. A sliding rail which slidably cooperates with the sliding block is arranged in the adjusting cylinder, and the sliding rail is arranged along the extension direction of the adjusting cylinder.

[0008] In some embodiments of the present invention, the sliding rail includes two limit bars arranged in parallel, the sliding block is a square block, the sliding block is slidably arranged between the two limit bars, and one of the opposite sides of the sliding block is respectively connected to the inner sides of the two limit bars;

[0009] An anti-dropping strip is arranged at one end of the two limit strips away from the inner side of the adjustment tube, and the anti-dropping strip is inclined toward the center between the two limit strips.

[0010] In some embodiments of the present invention, the pan / tilt head comprises a hemispherical swivel bracket, a hemispherical damping swivel is rotatably provided at a notch of the swivel bracket, and the notches of the damping swivel and the swivel bracket face the same direction, a swivel positioning piece abutting against the notch of the damping swivel is provided at the notch of the damping swivel, a damping grease layer is provided on the contact surface between the swivel positioning piece and the damping swivel, and the damping swivel is provided with a mounting assembly for an external projector;

[0011] The swivel positioning member is provided with an adjusting screw, one end of which passes through the damping swivel and the swivel bracket in sequence, and then a threaded adjusting knob is provided on the rear of the swivel bracket. The adjusting screw passes through the adjusting knob and is connected to the bracket adapter. The adjusting knob and the swivel bracket are in abutment with each other, and the other end of the adjusting screw is threaded with a hexagonal nut.

[0012] The adjusting screw fixing sleeve is provided with a polygonal positioning nut, the rotating head bracket is provided with a polygonal adjusting groove which is telescopically matched with the polygonal positioning nut, and the outer ring surface of the polygonal positioning nut is fitted with the side wall of the polygonal adjusting groove.

[0013] In some embodiments of the present invention, the mounting assembly includes a claw mounting plate detachably mounted on the damping rotary head, and the claw mounting plate is provided with a plurality of mounting parts.

[0014] In some embodiments of the present utility model, the positioning tube and the adjusting tube are both square tubes;

[0015] The four corners of the positioning tube are all provided with guide parts, and the four corners of the outer annular surface of the adjustment tube are all provided with four guide grooves, and the four guide grooves correspond to the four guide parts one by one.

[0016] In some embodiments of the present invention, the bracket adapter and the adjustment cylinder are rotatably connected via a fastening bolt.

[0017] Compared with the prior art, the technical solution of the utility model has at least the following advantages or beneficial effects:

[0018] (1) In the utility model, a projector is mounted on the pan-tilt head. The installation height of the projector can be adjusted by adjusting the extension of the adjustment tube relative to the positioning tube. The installation angle of the projector can be adjusted by the rotation design of the bracket adapter. The pan-tilt head makes the adjustment range of the projector wider. The utility model realizes the angle adjustment of the projector and can change the position according to the on-site situation, which is more practical.

[0019] (2) The damping grease layer is sticky and can realize the connection between the damping swivel and the swivel positioning member. When the swivel positioning member is loosened, it can be kept fixed by the stickiness of the damping grease layer. The projector connected to the damping swivel will not become loose directly, but will rotate to the desired position when subjected to force, and then be locked by adjusting the knob, which has the advantage of stable adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 This is a structural schematic diagram of a projector hanger according to an embodiment of the utility model;

[0022] Figure 2 It is a cross-sectional view of the pan / tilt platform of the utility model embodiment;

[0023] Figure 3 The cross-sectional view of the mounting plate, the positioning cylinder and the adjusting cylinder of the embodiment of the utility model Figure 1 ;

[0024] Figure 4 for Figure 2 A partial enlarged view of middle A;

[0025] Figure 5 The cross-sectional view of the mounting plate, the positioning cylinder and the adjusting cylinder of the embodiment of the utility model Figure 2 .

[0026] Icons: 1-mounting part, 2-claw mounting plate, 3-adjusting cylinder, 4-adjusting bolt, 5-positioning cylinder, 6-mounting plate, 7-bracket adapter, 8-adjusting knob, 9-swivel bracket, 10-damping swivel, 11-hexagonal nut, 12-swivel positioning part, 13-polygonal positioning nut, 14-adjusting screw, 15-sliding block, 16-anti-slip strip, 17-sliding rail, 18-damping grease layer, 19-guide part, 20-guide groove, 21-sliding groove. DETAILED DESCRIPTION

[0027] Example

[0028] Please refer to Figure 1-Figure 5A projector hanger includes a mounting plate 6, which is used to connect to an external wall. The mounting plate 6 is a flat plate. Four connecting holes distributed in a rectangular shape are opened on the mounting plate 6. The connecting holes are used to penetrate bolts and connect to the wall. A positioning cylinder 5 is arranged on the bottom side of the mounting plate 6. An adjusting cylinder 3 is arranged inside the positioning cylinder 5 to cooperate with the positioning cylinder 5. The outer annular surface of the adjusting cylinder 3 fits with the inner annular surface of the positioning cylinder 5 to ensure that the adjusting cylinder 3 can only be extended and retracted relative to the positioning cylinder 5, but cannot rotate relative to it.

[0029] One end of the adjusting tube 3 away from the mounting plate 6 passes through the side of the positioning tube 5 and is rotatably connected to a bracket adapter 7. The bracket adapter 7 is provided with a pan head, and the rotation plane of the pan head is perpendicular to the rotation plane of the bracket adapter 7.

[0030] An adjusting bolt 4 is arranged on the outer side of the adjusting cylinder 3, and the adjusting bolt 4 has an adjusting portion (square or round) and a screw portion, and the diameter of the screw portion is smaller than the diameter of the adjusting portion. The screw portion of the adjusting bolt 4 sequentially penetrates the inner side of the positioning cylinder 5 and the adjusting cylinder 3, and the screw portion of the adjusting bolt 4 can rotate relative to the positioning cylinder 5 and the adjusting cylinder 3. A sliding groove 21 which is telescopically matched with the adjusting bolt 4 is provided on the side wall of the adjusting cylinder 3. The adjusting bolt 4 in the adjusting cylinder 3 is threadedly matched with a sliding block 15, and a sliding rail 17 which is slidably matched with the sliding block 15 is provided in the adjusting cylinder 3, and the sliding rail 17 is arranged along the extension direction of the adjusting cylinder 3.

[0031] When the adjusting tube 3 is extended and retracted relative to the positioning tube 5, the screw portion of the adjusting bolt 4 and the sliding groove 21 are slidably matched. After the position of the adjusting tube 3 is adjusted, the adjusting bolt 4 is tightened, and the adjusting bolt 4 pulls the sliding block 15 to press the adjusting tube 3 and the positioning tube 5 to achieve positioning.

[0032] In the utility model, a projector is mounted on the pan-tilt head, and the installation height of the projector is adjusted by adjusting the extension of the tube 3 relative to the positioning tube 5. The installation angle of the projector can be adjusted by the rotation design of the bracket adapter 7. The pan-tilt head makes the adjustment range of the projector wider. The utility model realizes the angle adjustment of the projector, can change the position according to the on-site situation, and is more practical.

[0033] In some embodiments of the present invention, the sliding rail 17 includes two limit bars arranged in parallel, the sliding block 15 is a square block, the sliding block 15 is slidably arranged between the two limit bars, and one of the opposite sides of the sliding block 15 is respectively connected to the inner sides of the two limit bars;

[0034] An anti-dropping strip 16 is disposed at one end of the two limit strips away from the inner side of the adjustment tube, and the anti-dropping strip 16 is inclined toward the center between the two limit strips.

[0035] In the above embodiment, the adjusting bolt passes through the gap between the two anti-slip strips 16, and one opposite side of the sliding block 15 is respectively connected to the inner sides of the two limiting strips, so that the sliding block 15 can only slide in a directional manner along the extension direction of the limiting strips, and cannot rotate on its own; and under the limiting action of the anti-slip strips, the sliding block 15 cannot fall off the sliding rail 17, thereby improving the sliding stability of the sliding block 15.

[0036] In some embodiments of the present invention, the pan / tilt head includes a hemispherical turret bracket 9, a hemispherical damping turret 10 is rotatably provided at a notch of the turret bracket 9, and the notches of the damping turret 10 and the turret bracket 9 face the same direction, a turret positioning piece 12 abutting against the notch of the damping turret 10 is provided, a damping grease layer 18 is provided on the contact surface of the turret positioning piece 12 and the damping turret 10, and the damping turret 10 is provided with a mounting assembly for an external projector;

[0037] The swivel positioning member 12 is provided with an adjusting screw 14, one end of the adjusting screw 14 sequentially passes through the damping swivel 10 and the swivel bracket 9 and then is threadedly matched with an adjusting knob 8, and the adjusting screw 14 passes through the adjusting knob 8 and is connected to the bracket adapter 7, the adjusting knob 8 and the swivel bracket 9 are abutted and matched, and the other end of the adjusting screw 14 is threadedly matched with a hexagonal nut 11;

[0038] The adjusting screw 14 is fixedly sleeved with a polygonal positioning nut 13, the swivel bracket 9 is provided with a polygonal adjusting groove which is telescopically matched with the polygonal positioning nut 13, and the outer ring surface of the polygonal positioning nut 13 is in contact with the side wall of the polygonal adjusting groove.

[0039] In the above embodiment, the damping grease layer 18 is sticky and can realize the connection between the damping swivel head 10 and the swivel head positioning member 12, so that when the swivel head positioning member 12 is loosened, it can also be kept fixed by the viscosity of the damping grease layer 18. The projector connected to the damping swivel head 10 will not become loose directly, but will rotate to the desired position when subjected to force, and then be locked by adjusting the knob 8, which has the advantage of stable adjustment.

[0040] Tightening of the pan / tilt head: make the adjusting knob 8 close to the swivel bracket 9, turn the adjusting knob 8 and then pull the adjusting screw 14 toward the adjusting knob 8, the polygonal positioning nut 13 moves in the polygonal adjustment groove, so that the hexagonal nut 11 pushes the swivel positioning piece 12 to press on the damping swivel 10, and the damping swivel 10 is pressed on the swivel bracket 9, thereby locking the projector connected to the damping swivel 10.

[0041] The pan / tilt head is loosened so that the adjusting knob 8 rotates away from the swivel bracket 9, and the adjusting knob 82 rotates relative to the adjusting screw 14. When the gap between the adjusting knob 8 and the swivel bracket 9 is distributed on the sides, the gap can allow the adjusting screw 14 to move vertically, so that the hexagonal nut 11 will not press the swivel positioning piece 12, and the swivel positioning piece 12 and the swivel bracket 9 will not clamp and position the damping swivel 10, so that the projector on the damping swivel 10 can move.

[0042] In some embodiments of the present invention, the mounting assembly includes a claw mounting plate 2 detachably mounted on the damping rotary head 10 , and the claw mounting plate 2 is provided with a plurality of mounting members 1 .

[0043] In the above embodiment, the outer end of the mounting member 1 has a connection hole, which is used to connect the projector, and the plurality of mounting members 1 are evenly spaced and distributed along the circumferential direction of the claw mounting plate 2 .

[0044] The claw mounting disk 2 is a circular disk, and an arc groove is opened on the claw mounting disk 2. One end of the mounting member 1 is detachably set in the arc groove by a bolt. The design of the arc groove allows the mounting member 1 to slide along the arc groove to adjust the position of the connecting hole at the outer end of the mounting member 1 relative to the center of the claw mounting disk 2, which is suitable for different projectors.

[0045] In some embodiments of the present utility model, the positioning cylinder 5 and the adjusting cylinder 3 are both square cylinders;

[0046] The four corners of the positioning tube 5 are provided with guide parts 19 , and the four corners of the outer ring surface of the adjustment tube 3 are provided with four guide grooves 20 , and the four guide grooves 20 correspond to the four guide parts 19 one by one.

[0047] In the above embodiment, the sliding cooperation between the guide portion 19 and the guide groove 20 improves the sliding stability of the adjusting cylinder 3 relative to the positioning cylinder 5 .

[0048] In some embodiments of the present invention, the bracket adapter 7 and the adjustment cylinder 3 are rotatably connected via a fastening bolt.

[0049] In the above embodiment, when the fastening bolts are loosened, the bracket adapter 7 can rotate relative to the adjustment tube 3, and conversely, when the fastening bolts are tightened, the bracket adapter 7 and the adjustment tube 3 are locked together.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A projector hanger, characterized in that: It comprises a mounting plate, a positioning cylinder is arranged on the bottom side of the mounting plate, an adjusting cylinder which is telescopically matched with the positioning cylinder is arranged inside the positioning cylinder, one end of the adjusting cylinder which is away from the mounting plate passes through the side of the positioning cylinder and is rotatably connected to a bracket adapter, and the bracket adapter is provided with a pan / tilt head; An adjusting bolt is arranged on the outer side of the adjusting cylinder, and the screw portion of the adjusting bolt passes through the inner sides of the positioning cylinder and the adjusting cylinder in sequence. A sliding groove which telescopically cooperates with the adjusting bolt is opened on the side wall of the adjusting cylinder. A sliding block is threadedly cooperated with the adjusting bolt in the adjusting cylinder. A sliding rail which slidably cooperates with the sliding block is arranged in the adjusting cylinder, and the sliding rail is arranged along the extension direction of the adjusting cylinder.

2. A projector hanger according to claim 1, characterized in that: The sliding rail includes two limit bars arranged in parallel, the sliding block is a square block, the sliding block is slidably arranged between the two limit bars, and one of the opposite sides of the sliding block is respectively connected to the inner sides of the two limit bars; An anti-slip strip is arranged at one end of the two limit strips away from the inner side of the adjusting tube, and the anti-slip strip is inclined toward the center between the two limit strips.

3. A projector hanger according to claim 1, characterized in that: The pan / tilt head comprises a hemispherical turret bracket, a hemispherical damping turret is rotatably arranged at a notch of the turret bracket, and the notches of the damping turret and the turret bracket face the same direction, the notch of the damping turret is provided with a turret positioning piece abutting against it, a damping grease layer is provided on the contact surface of the turret positioning piece and the damping turret, and the damping turret is provided with a mounting assembly for an external projector; The swivel positioning member is provided with an adjusting screw, one end of the adjusting screw sequentially passes through the damping swivel and the swivel bracket, and a adjusting knob is threadedly matched thereafter, and the adjusting screw passes through the adjusting knob and is connected to the bracket adapter, the adjusting knob and the swivel bracket are in abutment with each other, and the other end of the adjusting screw is threadedly matched with a hexagonal nut; The adjusting screw fixing sleeve is provided with a polygonal positioning nut, the rotating head bracket is provided with a polygonal adjusting groove which is telescopically matched with the polygonal positioning nut, and the outer ring surface of the polygonal positioning nut is in contact with the side wall of the polygonal adjusting groove.

4. A projector hanger according to claim 3, characterized in that: The mounting assembly comprises a clamping claw mounting plate detachably arranged on the damping rotary head, and the clamping claw mounting plate is provided with a plurality of mounting parts.

5. The projector hanger according to claim 1, characterized in that: The positioning cylinder and the adjusting cylinder are both square cylinders; The four corners of the positioning cylinder are all provided with guide parts, and the four corners of the outer ring surface of the adjustment cylinder are all provided with four guide grooves, and the four guide grooves correspond to the four guide parts one by one.

6. The projector hanger according to claim 1, characterized in that: The bracket adapter and the adjusting cylinder are rotatably connected via a fastening bolt.

Images