CN108107653A - It is a kind of to facilitate the projection arrangement for adjusting height - Google Patents

Abstract

The invention relates to the technical field of projection equipment, and discloses a projection device that is convenient for height adjustment, including a balance frame, a traction rope is slidably connected to the outside of the balance frame, and a rotating tube is fixedly connected to the right end of the traction rope. The inside of the rotating tube is rotatably connected with a support rod, the left side of the rotating tube is fixedly connected with a hand limit plate, the left end of the traction rope is fixedly connected with a balance board, and the bottom of the balance board is fixedly connected with a fixed main pipe, Balance bars are fixedly connected to the left and right sides of the fixed main pipe. The height-adjustable projection device is convenient for the user to adjust the use height and angle of the projection box according to the use situation, facilitates the use and adjustment of the user, reduces the difficulty of adjustment operation, and saves a lot of manpower for climbing and adjustment. It brings a lot of convenience to the projection explanation teaching, improves the use efficiency of the projection device, and improves the work efficiency of the projection explanation teaching at the same time.

Description

A projection device with convenient height adjustment

technical field

The invention relates to the technical field of projection equipment, in particular to a projection device for convenient height adjustment.

Background technique

A projector, also known as a projector, is a device that can project images or videos onto a screen. It can be connected to a computer, VCD, DVD, BD, game console, DV, etc. through different interfaces to play the corresponding video signal. Projectors are currently widely used in homes, offices, schools, and entertainment venues. According to different working methods, there are different types such as CRT, LCD, and DLP.

The existing projection device is hoisted on the roof by the projector fixing frame, but the common projector fixing frame only has the function of installing and fixing the projector, and cannot adjust the use height or angle of the projector according to different usage conditions. The user brings a lot of inconvenience in explaining the use, and increases the difficulty of operation for the user, which will consume a lot of energy for the user. Therefore, a projection device that can be easily adjusted in height is proposed to solve the above-mentioned problems.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies in the prior art, the present invention provides a projection device that is convenient for height adjustment, which has the advantages of being able to facilitate the user to adjust the height and angle of the projector, and solves the problem that the existing projection device is difficult to adjust the height. There are many inconveniences.

(2) Technical solution

In order to achieve the above-mentioned purpose of enabling users to adjust the height and angle of the projector conveniently, the present invention provides the following technical solution: a projection device that is convenient for height adjustment, including a balance frame, and a traction rope is slidably connected to the outside of the balance frame. The right end of the traction rope is fixedly connected with a rotating tube, the inside of the rotating tube is connected with a support rod, the left side of the rotating tube is fixedly connected with a hand limit plate, and the left end of the traction rope is fixedly connected with a balance plate , the bottom of the balance board is fixedly connected with a fixed main pipe, the left and right sides of the fixed main pipe are fixedly connected with a balance bar, the inside of the fixed main pipe is slidably connected with a slider, and the bottom of the slider is fixedly connected with an extension rod , the left side of the extension rod is fixedly connected with a groove, the left side of the groove is movably connected with a tightening bolt, the bottom of the extension rod is fixedly connected with a limit block, and the outer side of the bottom of the extension rod is movably connected with a hollow Rotating ball, the left and right sides of the bottom of the hollow rotating ball are provided with sliding holes, the inside of the sliding hole is slidably connected with a connecting slider, the top of the connecting slider is fixedly connected with a stuck ball, and the connecting slider The bottom of the connecting block is fixedly connected with a connecting block, and the bottom of the connecting block is fixedly connected with a clamp bar, and two shadow box clips are fixedly connected on the side of the two clamp bars facing away from each other. A spring is connected, and a projection box is movably connected between the shadow box clips on the left and right sides.

Preferably, the balance frame is composed of two vertical bars and a horizontal bar, and the traction rope is located between the two vertical bars, and the left end of the traction rope is fixedly connected to both sides of the top of the balance board in a Y shape.

Preferably, the left end of the support rod passes through the rotating tube and the hand limit plate in turn and extends to the left side of the hand limit plate, the left end of the support rod is fixedly connected to the limit plate, and the diameter of the limit plate is larger than The diameter of the orifice of the rotating tube.

Preferably, the hand limit plate is composed of a limit plate and a hand lever perpendicular to the limit plate, the right end of the traction rope is wound around the outside of the rotating tube, and the top end of the balance bar is fixedly connected to the balance bar. left and right sides of the bottom of the board.

Preferably, the bottom end of the balance bar passes through the fixed main pipe and the hollow rotating ball in turn and extends to the limit block, the length of the groove bar is shorter than the length of the fixed main pipe, and an extension hole is opened at the bottom of the fixed main pipe, and extends The length of the hole is equal to the sum of the widths of the extension bar and the groove bar, and the length and width of the slider are greater than the length and width of the extension hole.

Preferably, the right end of the tightening bolt passes through the fixed main pipe and extends to the left side of the groove bar, the limiting block is circular, the diameter is larger than the radius of the hollow rotating ball and smaller than the diameter of the hollow rotating ball, the stuck ball The diameter is greater than the width of the sliding hole, and the stuck ball is located inside the hollow rotating ball.

Preferably, the connecting block is located outside the hollow rotating ball, the length of the clamping rod is equal to the length of the projection box, and the two shadow box clamps on the left and right sides are located on the front and back of the side away from the clamping rod, so The left and right sides of the projection box are provided with cooling holes, and the projection lens is fixedly installed on the front of the projection box.

(3) Beneficial effects

Compared with the prior art, the present invention provides a height-adjustable projection device, which has the following beneficial effects:

1. The height-adjustable projection device is equipped with a balance frame, a traction rope, a rotating tube, a support rod, a hand limit plate, a balance plate, a fixed main pipe, a balance rod, a slider, an extension rod, a groove bar and tightening The bolts are used in conjunction with each other. When the projection box is lowered, the extension length of the extension rod is adjusted up and down, and the projector is fine-tuned. It eliminates the trouble of not being able to adjust the height during use, facilitates the use and adjustment of the user, reduces the difficulty of adjustment operations, saves a lot of manpower for climbing and adjustment, and brings a lot of convenience to the projection explanation teaching.

2. The height-adjustable projection device can cooperate with each other through the set limit block, hollow rotating ball, sliding hole, connecting slide bar, clamping ball, connecting block, clamping rod, shadow box clip, spring and projection box. It facilitates the installation of the projection box, and at the same time facilitates the adjustment of the use angle of the projection box according to different usage scenarios and situations, which greatly facilitates the use of the user, improves the use efficiency of the projection device, and improves the projection Explain the effectiveness of teaching.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a partially enlarged schematic diagram of part A in the structure of the present invention.

In the figure: 1 balance frame, 2 traction rope, 3 rotating tube, 4 support rod, 5 hand limit plate, 6 balance plate, 7 fixed main pipe, 8 balance bar, 9 slider, 10 extension rod, 11 groove bar, 12 tightening bolts, 13 limit blocks, 14 hollow balls, 15 sliding holes, 16 connecting slide bars, 17 stuck balls, 18 connecting blocks, 19 clamping rods, 20 shadow box clips, 21 springs, 22 projection boxes.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Please refer to Figures 1-2, a technical solution provided by the present invention: a projection device for convenient height adjustment, including a balance frame 1, a traction rope 2 is slidingly connected to the outside of the balance frame 1, and the balance frame 1 is composed of two vertical rods It is composed of a horizontal bar, and the traction rope 2 is located between the two vertical poles. The right end of the traction rope 2 is fixedly connected with the rotating tube 3. The right end of the traction rope 2 is wound on the outside of the rotating tube 3. There is a support rod 4, the left end of the support rod 4 is fixedly connected with a limit plate, and the diameter of the limit plate is greater than the nozzle diameter of the rotary tube 3, and the left side of the rotary tube 3 is fixedly connected with a hand limit plate 5, and the hand limit plate The position plate 5 is composed of a limit plate and a hand rocker perpendicular to the limit plate. The left end of the support rod 4 runs through the rotating tube 3 and the hand limit plate 5 and extends to the left side of the hand limit plate 5. The left end of the traction rope 2 is fixedly connected with a balance plate 6, the left end of the traction rope 2 is fixedly connected to both sides of the top of the balance plate 6 in a Y shape, the bottom of the balance plate 6 is fixedly connected with a fixed main pipe 7, and the left and right sides of the fixed main pipe 7 A balance bar 8 is fixedly connected, and the top of the balance bar 8 is fixedly connected to the left and right sides of the bottom of the balance plate 6. The inside of the fixed main pipe 7 is slidably connected to a slider 9, and the bottom of the slider 9 is fixedly connected to an extension rod 10, and the extension rod The left side of 10 is fixedly connected with groove bar 11, and the length of groove bar 11 is less than the length of fixed main pipe 7, and the bottom of fixed main pipe 7 is provided with extension hole, and the length of extension hole is equal to the sum of the width of extension bar 10 and groove bar 11 , the length and width of the slider 9 are greater than the length and width of the extension hole, the left side of the groove bar 11 is movably connected with a tightening bolt 12, the right end of the tightening bolt 12 runs through the fixed main pipe 7 and extends to the left side of the groove bar 11, through The set balance frame 1, traction rope 2, rotating tube 3, support rod 4, hand limit plate 5, balance plate 6, fixed main pipe 7, balance bar 8, slider 9, extension rod 10, groove bar 11 and tightening The bolts 12 are used in conjunction with each other. When the projection box 22 is lowered, the extension length of the extension rod 10 is adjusted up and down, and the projector is fine-tuned, so that the user can turn the traction rope 2 to adjust the height of the projection box 22 up and down according to the usage situation. , It solves the trouble for the user that the height cannot be adjusted during use, facilitates the use and adjustment of the user, reduces the difficulty of the adjustment operation, saves a lot of manpower for climbing and adjustment, and brings a lot of troubles to the projection explanation teaching Convenience, the bottom of the extension rod 10 is fixedly connected with the limit block 13, the outside of the bottom of the extension rod 10 is movably connected with a hollow ball 14, and the bottom end of the balance bar 8 runs through the fixed main pipe 7 and the hollow ball 14 in sequence and extends to the limit block 13. The limit block 13 is circular, and its diameter is larger than the radius of the hollow ball 14 and smaller than the diameter of the hollow ball 14. The left and right sides of the bottom of the hollow ball 14 are provided with sliding holes 15, and the inside of the sliding hole 15 is slidingly connected. There is a connecting slide bar 16, and the top of the connecting slide bar 16 is fixedly connected with a clamping ball 17. The diameter of the clamping ball 17 is larger than the width of the sliding hole 15. The clamping ball 17 is located inside the hollow rotating ball 14, and the bottom of the connecting slide bar 16 is fixedly connected. Connecting block 18 is arranged, and connecting block 18 is positioned at the outside of hollow ball 14, and the bottom of connecting block 18 is fixed Clamping bars 19 are connected, and two shadow box folders 20 are fixedly connected to the side of the two clamping bars 19 facing away from each other. Spring 21 is fixedly connected between two clamp bars 19, and projection box 22 is movably connected between the shadow box folder 20 on left and right sides, and the length of clamp bar 19 is equal to the length of projection box 22, and the left and right sides of projection box 22 are provided with There are cooling holes, and the projection lens is fixedly installed on the front of the projection box 22, through the set limit block 13, the hollow rotating ball 14, the sliding hole 15, the connecting slide bar 16, the clamping ball 17, the connecting block 18, the clamping rod 19, The cooperative use between the shadow box clip 20, the spring 21 and the projection box 22 facilitates the installation of the projection box 22, and facilitates the adjustment of the use angle of the projection box 22 according to different usage scenarios and situations of the projection box 22, greatly improving The use of the user is facilitated, the use efficiency of the projection device is improved, and the work efficiency of the projection explanation teaching is improved at the same time.

When in use, hold the hand rocker on the hand-operated limit plate 5, turn the rotating tube 3, make the traction rope 2 rotate around the rotating tube 3, adjust the height of the lifting balance plate 6 up and down under the action of the traction rope 2, and drive The projection box 22 connected to the bottom of the fixed main pipe 7 under the balance plate 6 moves up and down to adjust the tightness of the tightening bolt 12 and the groove bar 11, and the extension rod 10 is moved through the slider 9 in the fixed main pipe 7 to adjust the extension of the extension rod 10. Length, according to the limit block 13 and the clamping ball 17 in the hollow turning ball 14, and the connecting block 18 on the clamping ball 17, the extension rod 10 is connected with the clamping rod 19 on the shadow box clamp 20, then the projection box 22 can be fine-tuned Use height and angle.

In summary, the height-adjustable projection device is equipped with a balance frame 1, a traction rope 2, a rotating tube 3, a support rod 4, a hand limit plate 5, a balance plate 6, a fixed main pipe 7, and a balance bar 8. , the slider 9, the extension rod 10, the groove bar 11 and the tightening bolt 12 are used in conjunction with each other. When the projection box 22 is lowered, the extension length of the extension rod 10 is adjusted up and down, and the projector is fine-tuned, which is convenient for the user to adjust according to the The situation of use turns the traction rope 2 to adjust the height of the projection box 22 up and down, which solves the trouble of not being able to adjust the height when the user is in use, facilitates the use and adjustment of the user, reduces the difficulty of adjustment operations, and saves a lot of climbing. The manpower for climbing and adjusting has brought a lot of convenience to the projection explanation teaching.

And, by setting the limit block 13, the hollow rotating ball 14, the sliding hole 15, the connecting slide bar 16, the clamping ball 17, the connecting block 18, the clip bar 19, the shadow box clip 20, the spring 21 and the projection box 22 Cooperating with each other facilitates the installation of the projection box 22, and at the same time facilitates the adjustment of the use angle of the projection box 22 according to different usage scenarios and situations, which greatly facilitates the use of the user and improves the use efficiency of the projection device At the same time, the work efficiency of projection explanation teaching is improved, and the problem that the existing projection device is difficult to adjust the height and brings many inconveniences to users is solved.

It should be noted that the term "comprising", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes none other elements specifically listed, or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. a kind of facilitate the projection arrangement for adjusting height, including balancing stand (1), it is characterised in that：The outside of the balancing stand (1) Traction rope (2) is slidably connected, the right end of the traction rope (2) is fixedly connected with tube (3), and the inside of the tube (3) turns It is dynamic to be connected with supporting rod (4), hand limiting plate (5), a left side for the traction rope (2) are fixedly connected on the left of the tube (3) End is fixedly connected with balance plate (6), and the bottom of the balance plate (6) is fixedly connected with fixed supervisor (7), the fixed supervisor (7) balancing pole (8) is fixedly connected at left and right sides of, the internal slide of the fixed supervisor (7) is connected with sliding block (9), described The bottom of sliding block (9) is fixedly connected with extension rod (10), and groove bar (11) is fixedly connected on the left of the extension rod (10), described It being connected on the left of groove bar (11) and tightens bolt (12), the bottom of the extension rod (10) is fixedly connected with limited block (13), It is connected on the outside of extension rod (10) bottom and hollow turns ball (14), the hollow left and right sides for turning ball (14) bottom Sliding eye (15) is offered, the internal slide of the sliding eye (15) is connected with connection draw runner (16), the connection draw runner (16) card ball (17) is fixedly connected at the top of, the bottom of the connection draw runner (16) is fixedly connected with link block (18), described The bottom of link block (18) is fixedly connected with clamping bar (19), and the one side that two clamping bars (19) are away from each other has been fixedly connected with two A shadow box presss from both sides (20), and spring (21), the shadow box folder (20) of the left and right sides are fixedly connected between two clamping bars (19) Between be connected with projection box (22).

2. a kind of projection arrangement for facilitating adjusting height according to claim 1, it is characterised in that：The balancing stand (1) It is made of two montants and a cross bar, and traction rope (2) is located between two montants, the left end of the traction rope (2) is Y-shaped The both sides being fixedly connected at the top of balance plate (6).

3. a kind of projection arrangement for facilitating adjusting height according to claim 1, it is characterised in that：The supporting rod (4) Left end sequentially pass through tube (3) and hand limiting plate (5) and extend to the left side of hand limiting plate (5), the supporting rod (4) Left end be fixedly connected with limiting plate, and the diameter of limiting plate is more than the nozzle diameter of tube (3).

4. a kind of projection arrangement for facilitating adjusting height according to claim 1, it is characterised in that：The hand limiting plate (5) it is made of limiting plate and the joystick on limiting plate, the right end of the traction rope (2) is wrapped in the outer of tube (3) Side, the top of the balancing pole (8) are fixedly connected on the left and right sides of balance plate (6) bottom.

5. a kind of projection arrangement for facilitating adjusting height according to claim 1, it is characterised in that：The balancing pole (8) Bottom sequentially pass through fixed supervisor (7) and it is hollow turn ball (14) and extend to limited block (13), the length of the groove bar (11) Less than the length of fixed supervisor (7), the bottom of the fixed supervisor (7) offers elongated hole, and the length of elongated hole is equal to and prolongs The sum of boom (10) and the width of groove bar (11), the length and width of the sliding block (9) is all higher than the length and width of elongated hole.

6. a kind of projection arrangement for facilitating adjusting height according to claim 1, it is characterised in that：It is described to tighten bolt (12) Right end through fixed supervisor (7) and extend to the left side of groove bar (11), the limited block (13) is rounded, and diameter is more than hollow Turn the radius of ball (14) and less than the hollow diameter for turning ball (14), the diameter of the card ball (17) is more than the width of sliding eye (15) Degree, the card ball (17) are located at the hollow inside for turning ball (14).

7. a kind of projection arrangement for facilitating adjusting height according to claim 1, it is characterised in that：The link block (18) Positioned at the hollow outside for turning ball (14), the length of the clamping bar (19) is equal to the length of projection box (22), two of the left and right sides The shadow box folder (20) is located at the front and back that clamping bar (19) is away from each other one side, is opened up at left and right sides of the projection box (22) There is heat emission hole, and the front of projection box (22) is installed with projection lens.