CN215862423U

CN215862423U - Projection fixing device

Info

Publication number: CN215862423U
Application number: CN202121351425.9U
Authority: CN
Inventors: 薛朝广
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-02-18
Anticipated expiration: 2031-06-17

Abstract

The utility model relates to a projection fixing device, which comprises a fixed frame, wherein two sides of the bottom end inside the fixed frame are provided with limiting grooves, the upper surface of the fixed frame is provided with a plurality of groups of guide rails, a limiting frame is arranged between two adjacent groups of guide rails and fixed on the upper surface of the fixed frame, a movable frame is movably arranged on the fixed frame, two sides of one end of the movable frame are fixedly provided with clamping blocks, a threaded bolt is connected onto a connecting frame in a threaded manner, two groups of limiting rings are fixed onto the threaded bolt, the two groups of limiting rings are tightly attached to two sides of a movable block, a projector is arranged on the movable frame, through rotating an adjusting bolt, through matching a threaded groove arranged on the adjusting bolt with a threaded hole arranged on a clamping block, the two adjacent groups of clamping blocks synchronously move towards opposite directions in the guide rails through convex blocks, and the projector is fixed at the central position inside the fixed frame by utilizing the two groups of clamping blocks, the projector is centered.

Description

Projection fixing device

Technical Field

The utility model relates to a projection fixing device.

Background

When the projection equipment is installed and fixed, the projection equipment needs to be limited by means of the fixing device, the projection device can conduct suspended projection and position limitation simultaneously, and a projection screen is projected onto projection cloth.

The prior art has the following problems:

1. when the projector is installed and placed, the position of the projector is inconvenient to move and adjust, so that the projector is arranged in the middle;

2. when the projection distance has errors, the correction is inconvenient.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a projection fixing device.

In order to achieve the purpose, the utility model provides the following technical scheme: a projection fixing device comprises a fixing frame, wherein limiting grooves are formed in two sides of the bottom end inside the fixing frame, a plurality of groups of guide rails are formed in the upper surface of the fixing frame, a limiting frame is arranged between every two adjacent groups of guide rails and fixed on the upper surface of the fixing frame, a movable frame is movably mounted on the fixing frame, clamping blocks are fixed on two sides of one end of the movable frame and mounted inside the limiting grooves, two groups of pressing sheets are mounted on the other end of the movable frame, clamping blocks are movably mounted on the fixing frame, protruding blocks are arranged on two sides of the clamping blocks and mounted inside the guide rails, two groups of clamping blocks are movably mounted on adjusting bolts, two groups of limiting columns are arranged on the adjusting bolts and mounted inside the limiting frames, and a connecting frame is fixed at the central position of the upper surface of the fixing frame, the utility model discloses a projection device, including link, movable mounting, through-hole, threaded bolt, locating plate, connecting rod, movable block, connecting rod, threaded bolt, projecting apparatus, the spout has been seted up to the inside of link, movable mounting has the movable block on the link, the central point of movable block puts and runs through and has seted up the through-hole, the last fixed surface of movable block has the connecting rod, threaded connection has the threaded bolt on the link, the threaded bolt runs through the through-hole is installed on the movable block, be fixed with two sets of spacing rings on the threaded bolt, it is two sets of the spacing ring closely laminates the both sides of movable block, install the projecting apparatus on the movable frame.

Preferably, in the projection fixing device of the present invention, a sliding structure is formed between the fixed frame and the movable frame, a rotating structure is formed between the movable frame and the pressing plate, and an outer dimension of the clamping block is the same as an inner cross-sectional dimension of the limiting groove.

Preferably, the projection fixing device of the present invention is configured such that the clamping block and the protruding block are integrated, the clamping block is provided with a threaded hole, and the clamping block and the fixing frame form a sliding structure through the protruding block and the guide rail.

Preferably, two ends of the adjusting bolt are provided with thread grooves facing opposite directions, the adjusting bolt is in threaded connection with the clamping block, and the adjusting bolt forms a rotating structure with the limiting frame through the limiting column.

Preferably, the projection fixing device of the utility model is characterized in that threaded holes are formed at two ends of the connecting frame in a penetrating manner, the connecting frame is in threaded connection with the threaded bolts through the threaded holes, the threaded bolts and the limiting ring are in an integrated structure, and the diameter of the limiting ring is larger than the aperture of the through hole.

Preferably, in the projection fixing device of the present invention, the movable block has a cross-sectional shape of a "convex", the cross-sectional dimension of the movable block is the same as the cross-sectional dimension of the sliding groove, and the movable block forms a sliding structure with the connecting frame through the sliding groove.

Compared with the prior art, the utility model has the beneficial effects that:

1. the adjusting bolt is rotated, and the thread groove arranged on the adjusting bolt is matched with the thread hole arranged on the clamping block, so that two adjacent groups of clamping blocks synchronously move towards opposite directions in the guide rail through the convex block, and the projector is fixed at the central position in the fixed frame by utilizing the two groups of clamping blocks, so that the projector is arranged in the middle;

2. after the projector is installed and fixed, when the image of the projected image is larger or smaller on the projection cloth, the threaded bolt rotates and is relatively fixed through displacement between the limiting ring and the movable block, so that the threaded bolt rotates and then relatively slides between the control connecting frame and the movable block through a threaded hole formed in the connecting frame, and the position of the fixing frame far away from the projection cloth is relatively changed, so that the projected image is completely covered on the projection cloth.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the projector according to the present invention after installation;

fig. 3 is a schematic diagram of the structure explosion structure of the present invention.

In the figure: 1. a fixed mount; 2. a limiting groove; 3. a guide rail; 4. a limiting frame; 5. a movable frame; 6. a clamping block; 7. tabletting; 8. a clamping block; 9. a bump; 10. adjusting the bolt; 11. a limiting column; 12. a connecting frame; 13. A chute; 14. a movable block; 15. a through hole; 16. a connecting rod; 17. a threaded bolt; 18. a limiting ring; 19. A projector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: a projection fixing device comprises a fixing frame 1, limiting grooves 2 are formed in two sides of the bottom end of the interior of the fixing frame 1, a plurality of groups of guide rails 3 are formed in the upper surface of the fixing frame 1, a limiting frame 4 is arranged between two adjacent groups of guide rails 3, the limiting frame 4 is fixed on the upper surface of the fixing frame 1, a movable frame 5 is movably mounted on the fixing frame 1, clamping blocks 6 are fixed on two sides of one end of the movable frame 5, the clamping blocks 6 are mounted in the limiting grooves 2, two groups of pressing sheets 7 are mounted at the other end of the movable frame 5, clamping blocks 8 are movably mounted on the fixing frame 1, lugs 9 are arranged on two sides of the clamping blocks 8, the lugs 9 are mounted in the guide rails 3, the two groups of clamping blocks 8 are movably mounted on an adjusting bolt 10, two groups of limiting columns 11 are arranged on the adjusting bolt 10, the limiting columns 11 are mounted in the limiting frame 4, a connecting frame 12 is fixed in the center position of the upper surface of the fixing frame 1, a sliding groove 13 is formed in the connecting frame 12, movably mounted has the movable block 14 on the link 12, and the central point of movable block 14 puts and runs through and has seted up through-hole 15, and the last fixed surface of movable block 14 has connecting rod 16, and threaded connection has screw bolt 17 on the link 12, and screw bolt 17 runs through-hole 15 and installs on movable block 14, is fixed with two sets of spacing rings 18 on the screw bolt 17, and two sets of spacing rings 18 closely laminate in the both sides of movable block 14, install projecting apparatus 19 on the movable frame 5.

In this embodiment: through rotating adjusting bolt 10, screw hole seted up on screw thread groove cooperation clamp splice 8 that sets up on adjusting bolt 10, make two sets of adjacent clamp splice 8 pass through lug 9 and move towards opposite direction in the inside synchronization of guide rail 3, utilize two sets of clamp splice 8 to fix projecting apparatus 19 at the inside central point of mount 1, make projecting apparatus 19 set up centrally, after fixing projecting apparatus 19 installation, the projected image is great or when less on the projection cloth, through rotating screw bolt 17, screw bolt 17 is through the displacement relatively fixed between spacing ring 18 and movable block 14, make screw bolt 17 after rotating, through the screw hole of seting up on link 12, control takes place relative slip between link 12 and the movable block 14, and then make the position relative change of mount 1 apart from the projection cloth, thereby make the projected image cover completely at the projection cloth.

Constitute sliding construction between mount 1 and the adjustable shelf 5, constitute revolution mechanic between adjustable shelf 5 and the preforming 7, the external dimension of fixture block 6 is the same with spacing groove 2's inside cross sectional dimension, place projecting apparatus 19 back on adjustable shelf 5, utilize two sets of preforming 7 that can rotate to tentatively prescribe a limit to projecting apparatus 19, then fixture block 6 and spacing groove 2 that utilize 5 side settings of adjustable shelf to set up cooperate, make adjustable shelf 5 remove projecting apparatus 19 to the inside of mount 1.

Formula structure as an organic whole between clamp splice 8 and the lug 9, set up threaded hole on the clamp splice 8, clamp splice 8 constitutes sliding construction through between lug 9 and guide rail 3 and the mount 1, and through rotating adjusting bolt 10, the screw hole control clamp splice 8 of seting up on the adjusting bolt 10 cooperation clamp splice 8 moves, and then makes adjacent two sets of clamp splices 8 move towards opposite direction through lug 9 in guide rail 3 inside synchronization.

Opposite thread groove of orientation is seted up at the both ends of adjusting bolt 10, be threaded connection between adjusting bolt 10 and the clamp splice 8, and adjusting bolt 10 constitutes revolution mechanic through between spacing post 11 and the spacing 4, installs the inside of spacing 4 through the spacing post 11 with adjusting bolt 10 setting, makes adjusting bolt 10 only can carry out the rotary motion, and the screw hole of seting up on the thread groove cooperation clamp splice 8 of seting up on adjusting bolt 10 simultaneously connects and can adjust.

Threaded holes are formed in the two ends of the connecting frame 12 in a penetrating mode, the connecting frame 12 is in threaded connection with the threaded bolts 17 through the threaded holes, the threaded bolts 17 and the limiting ring 18 are of an integrated structure, the diameter of the limiting ring 18 is larger than the aperture of the through hole 15, after the threaded bolts 17 rotate, the threaded holes formed in the connecting frame 12 control relative sliding between the connecting frame 12 and the movable block 14, and the threaded bolts 17 are fixed relatively through the limiting ring 18 and the movable block 14.

The sectional shape of movable block 14 is "protruding" word form, and the sectional dimension of movable block 14 is the same with the sectional dimension of spout 13, and movable block 14 passes through to constitute sliding construction between spout 13 and the link 12, through the structural setting of movable block 14, makes link 12 pass through spout 13 and can carry out horizontal slip on movable block 14, and then changes the inside projecting apparatus 19 position of placing of mount 1 through the position that changes link 12.

The working principle and the using process of the utility model are as follows: firstly, pulling out the movable frame 5 from the fixed frame 1, then placing the projector 19 to be installed on the movable frame 5, then rotating the pressing sheet 7 to primarily fix the projector 19, then utilizing the clamping block 6 arranged on the side surface of the movable frame 5 to be matched with the limiting groove 2 to make the movable frame 5 move the projector 19 into the fixed frame 1, rotating the adjusting bolt 10, utilizing the thread groove arranged on the adjusting bolt 10 to be matched with the thread hole arranged on the clamping block 8 to make the two adjacent clamping blocks 8 synchronously move towards opposite directions in the guide rail 3 through the convex block 9, utilizing the two clamping blocks 8 to fix the projector 19 at the central position in the fixed frame 1, making the projector 19 arranged in the fixed frame 1 in the middle, after fixing the projector 19, debugging the projected image of the projector 19, when the projected image on the projected cloth is larger or smaller, through rotating threaded bolt 17, threaded bolt 17 passes through displacement relatively fixed between spacing ring 18 and the movable block 14, makes threaded bolt 17 after rotating, through the screw hole of seting up on the link 12, takes place relative slip between control link 12 and the movable block 14, and then changes the inside projecting apparatus 19 position of placing of mount 1 through the position that changes link 12 to make the projecting image cover at the projection cloth completely, accomplish the debugging to projecting apparatus 19.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A projection fixing device comprises a fixing frame (1), and is characterized in that: the fixing frame is characterized in that limiting grooves (2) are formed in two sides of the bottom end inside the fixing frame (1), a plurality of groups of guide rails (3) are formed in the upper surface of the fixing frame (1), a limiting frame (4) is arranged between every two adjacent groups of guide rails (3), the limiting frame (4) is fixed on the upper surface of the fixing frame (1), a movable frame (5) is movably mounted on the fixing frame (1), clamping blocks (6) are fixed on two sides of one end of the movable frame (5), the clamping blocks (6) are mounted inside the limiting grooves (2), two groups of pressing sheets (7) are mounted at the other end of the movable frame (5), clamping blocks (8) are movably mounted on the fixing frame (1), convex blocks (9) are arranged on two sides of the clamping blocks (8), the convex blocks (9) are mounted inside the guide rails (3), and the two groups of clamping blocks (8) are movably mounted on an adjusting bolt (10), two groups of limiting columns (11) are arranged on the adjusting bolt (10), the limiting columns (11) are arranged inside the limiting frame (4), a connecting frame (12) is fixed at the center of the upper surface of the fixed frame (1), a sliding groove (13) is arranged inside the connecting frame (12), a movable block (14) is movably arranged on the connecting frame (12), a through hole (15) is arranged at the center of the movable block (14) in a penetrating way, a connecting rod (16) is fixed on the upper surface of the movable block (14), a threaded bolt (17) is connected on the connecting frame (12) in a threaded manner, the threaded bolt (17) penetrates through the through hole (15) and is installed on the movable block (14), two sets of spacing rings (18) are fixed on the threaded bolt (17), the spacing rings (18) are tightly attached to two sides of the movable block (14), and a projector (19) is mounted on the movable frame (5).

2. A projection fixture as claimed in claim 1, wherein: a sliding structure is formed between the fixed frame (1) and the movable frame (5), a rotating structure is formed between the movable frame (5) and the pressing sheet (7), and the external dimension of the fixture block (6) is the same as the internal cross-sectional dimension of the limiting groove (2).

3. A projection fixture as claimed in claim 1, wherein: the clamping block (8) and the lug (9) are of an integrated structure, a threaded hole is formed in the clamping block (8), and the clamping block (8) forms a sliding structure through the lug (9), the guide rail (3) and the fixing frame (1).