WO2022017276A1 - 俯仰调节装置 - Google Patents

俯仰调节装置 Download PDF

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Publication number
WO2022017276A1
WO2022017276A1 PCT/CN2021/106748 CN2021106748W WO2022017276A1 WO 2022017276 A1 WO2022017276 A1 WO 2022017276A1 CN 2021106748 W CN2021106748 W CN 2021106748W WO 2022017276 A1 WO2022017276 A1 WO 2022017276A1
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WO
WIPO (PCT)
Prior art keywords
rod
frame
screw
top frame
adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2021/106748
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English (en)
French (fr)
Inventor
严子深
周正平
李屹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Appotronics Corp Ltd
Original Assignee
Appotronics Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2022017276A1 publication Critical patent/WO2022017276A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/42—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters with arrangement for propelling the support stands on wheels

Definitions

  • the present application relates to the technical field of object-carrying devices, and in particular, to a pitch adjustment device.
  • the installation angle of the engineering projector needs to be adjusted for overhead projection or overlooking projection.
  • the pitch angle of the engineering projector is adjusted by means of a support frame or hoisting.
  • the engineering projector is installed on the support frame, and 4 or 6 support feet are installed at the bottom of the support frame.
  • the height of each support foot can be adjusted by rotating the screw, so as to realize the adjustment of the pitch angle of the engineering projector.
  • this adjustment method greatly limits the angular range of pitch adjustment (less than ⁇ 10°), and at the same time, the height of each support foot needs to be adjusted in turn, which is cumbersome to operate.
  • the hoisting method can realize a large pitch adjustment of the engineering projector, it is necessary to provide a larger crane or a gantry crane for hoisting the engineering projector, which is costly and has a small scope of application.
  • the purpose of this application is to propose a pitch adjustment device to solve the above problems.
  • the present application achieves the above objects through the following technical solutions.
  • An embodiment of the present application provides a pitch adjustment device, which includes a bottom frame assembly, a top frame assembly, a lead screw assembly, and a push rod assembly, where the bottom frame assembly includes a bottom frame frame; the top frame assembly includes a top frame frame, a first support foot and The second support leg, the top frame frame includes opposite first ends and second ends, the first support leg is connected to the top frame frame and is located at the first end, the second support leg is connected to the top frame frame and located at the second end, and the first support leg is connected to the top frame frame and located at the second end.
  • a support foot and a second support foot are lockably arranged on the bottom frame, and the top frame selectively rotates with the first support foot or the second support foot as a fulcrum;
  • the screw assembly includes a screw and a screw nut, The screw rod is rotatably arranged on the chassis frame, the screw rod nut is sleeved on the outer circumference of the screw rod, and is threadedly connected with the screw rod;
  • the push rod assembly includes a push rod and a connecting rod, the push rod is connected to the screw rod nut, and the connecting rod at least The part is located between the top frame and the bottom frame, one end of the connecting rod is rotatably connected to the top frame, and the other end of the connecting rod is rotatably connected to the push rod.
  • the pitch adjustment device further includes an adjustment assembly, the adjustment assembly includes an adjustment rod and a transmission member, the adjustment rod is rotatably arranged on the chassis frame, the axis of the adjustment rod and the axis of the screw rod form a predetermined angle, and the transmission member Connected with adjusting rod and screw drive.
  • the transmission member includes a driving bevel gear and a driven bevel gear that mesh with each other, the driving bevel gear is coaxially connected to the adjusting rod, the driven bevel gear is coaxially connected to the adjusting rod, and the driving bevel gear is coaxially connected to the adjusting rod.
  • the gear ratio of the gear to the driven bevel gear is greater than 1.
  • the push rod assembly further includes a pulley, the pulley is hinged to one end of the connecting rod;
  • the base frame assembly further includes a slide rail, the slide rail is arranged on the bottom frame frame, and the pulley is slidably matched with the slide rail.
  • the bottom frame is provided with a supporting foot fixing plate, and the first supporting foot and the second supporting foot are lockably arranged on the supporting foot fixing plate.
  • both the first support foot and the second support foot include a support seat and a fastener, the fastener is detachably connected to the support seat and the support foot fixing plate, and the support seat is hinged to the top frame frame.
  • the chassis assembly further includes a first screw bearing seat and a second screw bearing seat, the first screw bearing seat and the second screw bearing seat are arranged on the chassis frame at intervals, and the screw is rotatable It is connected to the first screw bearing seat and the second screw bearing seat.
  • the top frame frame is provided with an object storage surface away from the bottom frame frame
  • the top rack assembly further includes a connecting rod bearing seat
  • the connecting rod bearing seat is disposed on the object storage surface
  • the connecting rod is rotatably connected to the connecting rod bearing housing.
  • the connecting rod includes a first connecting sub-rod and a second connecting sub-rod, the first connecting sub-rod and the second connecting sub-rod are respectively hinged to two ends of the push rod, and the screw rod is located on the first connecting sub-rod and the second connecting rod.
  • the base frame assembly further includes a universal wheel, and the universal wheel is arranged on the base frame.
  • the pitch adjustment device provided by the embodiment of the present application is lockably connected to the bottom frame through the first support foot and the second support foot, and the top frame can selectively use the first support foot or the second support foot.
  • the two supporting feet are rotated as fulcrums to realize the switching between the top view state and the top view state of the pitch adjustment device; at the same time, the pitch adjustment device can realize a large range of pitch with a small force through the transmission cooperation of the screw assembly and the push rod assembly. Angle adjustment, easy operation, wide application range.
  • FIG. 1 is a schematic structural diagram of a pitch adjustment device provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of the pitch adjustment device provided by the embodiment of the present application in a downward looking state.
  • FIG. 3 is a schematic structural diagram of the pitch adjusting device provided by the embodiment of the present application in a top view state.
  • FIG. 4 is a schematic structural diagram of a base frame assembly and a lead screw assembly in a pitch adjustment device provided by an embodiment of the present application.
  • FIG. 5 is a partial structural schematic diagram of an adjustment component in a pitch adjustment device provided by an embodiment of the present application.
  • FIG. 6 is a thrust simulation diagram of the pitch adjusting device provided in the embodiment of the present application in the process of adjusting the upward view.
  • FIG. 7 is a thrust simulation diagram of the pitch adjustment device provided by the embodiment of the present application in a plan view adjustment process.
  • FIG. 8 is a schematic structural diagram of a support foot in a pitch adjustment device provided by an embodiment of the present application.
  • FIG. 9 is a schematic structural diagram of a push rod assembly in a pitch adjustment device provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a top frame assembly in the pitch adjustment device provided by the embodiment of the present application.
  • the pitch adjustment device provided by the embodiment of the present application can be applied to an engineering projector, so as to realize the pitch angle adjustment of the engineering projector.
  • the pitch adjustment device provided in the embodiment of the present application can also be applied to other fields to realize pitch angle adjustment of other equipment, such as video recorders, cameras, lighting equipment, and any electronic or non-electronic equipment that needs to adjust the pitch angle.
  • the embodiment does not specifically limit this.
  • FIG. 1 is a schematic structural diagram of a pitch adjustment device provided by an embodiment of the present application. As shown in FIG.
  • the chassis assembly 10 includes a chassis frame 11 .
  • the top frame assembly 20 includes a top frame frame 21 , a first support leg 22 and a second support leg 23 , and the first support leg 22 and the second support leg 23 are lockably disposed on the bottom frame frame 11 .
  • the top rack frame 21 includes opposite first ends 211 and second ends 212 .
  • the first end 211 and the second end 212 may be located at two ends of the top rack frame 21 in the length direction, respectively.
  • the first support leg 22 is connected to the top frame 21 and is located at the first end 211
  • the second support leg 23 is connected to the top frame 21 and located at the second end 212
  • the top frame 21 is selectively connected to the first support leg 22 or the second end 212 .
  • the second supporting feet 23 are pivot points to rotate to adjust the angle between the top frame 21 and the bottom frame 11 .
  • the bottom frame 11 and the top frame 21 are substantially rectangular frame structures, and the size of the top frame 21 may be the same as that of the bottom frame 11 or within a certain error range.
  • FIG. 2 is a schematic structural diagram of the pitch adjustment device provided in the embodiment of the present application in a downward looking state.
  • the pitch adjustment device 100 can be used to adjust the pitch angle of the engineering projector 200 .
  • the second support legs 23 are connected to the bottom frame 11 , and the top frame 21 can rotate relative to the bottom frame 11 with the second support legs 23 as a fulcrum, so as to realize the angle of the engineering projector 200 when viewed from above. adjust.
  • FIGS. 1 and 3 are schematic structural diagram of the pitch adjustment device provided by the embodiment of the present application in a top view.
  • the top frame 21 can rotate relative to the bottom frame 11 with the first support legs 22 as a fulcrum, so as to realize the angle adjustment of the engineering projector 200 in a plan view state.
  • the pitch adjusting device 100 can realize the switching between the top view state and the bottom view state of the engineering projector 200, so that the pitch adjusting device 100 can be applied to More usage scenarios.
  • the number of the first supporting legs 22 may be two, and the two first supporting legs 22 are disposed opposite to each other on both sides of the top frame frame 21 in the width direction.
  • the number of the second support feet 23 may be two, and the two second support feet 23 are disposed opposite to both sides of the top frame frame 21 in the width direction.
  • the top frame 21 rotates with the two first support feet 22 or the two second support feet 23 as fulcrums, which can improve the stability of the top frame 21 during the rotation.
  • the number of the first support feet 22 and the second support feet 23 may also be one, three, or more than three.
  • the screw assembly 30 includes a screw 31 and a screw nut 32.
  • the screw 31 is rotatably disposed on the chassis frame 11, and the screw nut 32 is sleeved on the outer circumference of the screw 31 and is connected with the screw Rod 31 is threaded.
  • the lead screw 31 is rotated in the forward or reverse direction, the lead screw nut 32 can reciprocate along the axial direction of the lead screw 31 , and the axial direction of the lead screw 31 can be consistent with the length direction of the chassis frame 11 .
  • the push rod assembly 40 includes a push rod 41 and a connecting rod 42.
  • the push rod 41 is connected to the screw nut 32.
  • the axial direction of the push rod 41 can be perpendicular to the axial direction of the screw rod 31.
  • the screw nut 32 drives the push rod 41 along the screw rod.
  • the axial movement of the rod 31 is synchronized.
  • the connecting rod 42 is at least partially located between the top frame 21 and the top frame 21 , one end of the connecting rod 42 is rotatably connected to the top frame 21 , and the other end of the connecting rod 42 is rotatably connected to the push rod 41 .
  • the screw nut 32 is moved along the axial direction of the screw rod 31 by rotating the screw rod 31.
  • the push rod 41 moves synchronously along the axial direction of the screw rod 31, and gives the connection
  • the rod 42 pushes, and the connecting rod 42 generates an upward thrust on the top frame 21 under the push of the push rod 41 , thereby pushing the top frame 21 to rotate upward, realizing the pitch angle adjustment of the engineering projector 200 .
  • the top frame 21 is adjusted to a certain angle, loosen the lead screw 31. Since the lead screw drive has self-locking characteristics, the lead screw nut 32 will not move in the opposite direction due to the gravity of the engineering projector 200, and the top can be moved.
  • the rack frame 21 is fixed in the existing position.
  • rotating the screw 31 with a small force can realize the adjustment of the pitch angle of the heavy engineering projector 200, which makes the operation more labor-saving and easy.
  • the maximum angle of the top frame 21 relative to the bottom frame 11 can reach 45°, which meets the daily use requirements of the engineering projector 200 .
  • those skilled in the art can adjust the size of the pitch adjustment device 100 according to actual needs, such as the length of the connecting rod 42 and the top frame 21, etc., so as to adjust the pitch angle adjustment range of the pitch adjustment device 100.
  • FIG. 4 is a schematic structural diagram of the bottom frame assembly and the lead screw assembly in the pitch adjustment device provided by the embodiment of the present application.
  • the pitch adjustment device 100 further includes an adjustment assembly 50
  • the adjustment assembly 50 includes an adjustment rod 51 and the transmission member 52
  • the adjustment rod 51 is rotatably disposed on the bottom frame 11
  • the axis of the adjustment rod 51 forms a predetermined angle with the axis of the screw rod 31
  • the rotation member 52 is connected to the adjustment rod 51 and the screw rod 31 by transmission.
  • the adjustment rod 51 can be rotated, and the adjustment rod 51 drives the screw rod 31 to rotate through the transmission member 52 , thereby realizing the adjustment of the pitch angle of the pitch adjustment device 100 .
  • the axis of the adjustment rod 51 and the axis of the lead screw 31 can be perpendicular to each other, so that the angle adjustment operation of the pitch adjustment device 100 can be performed on the side of the engineering projector 200 to avoid interfering with the projection of projection light.
  • the adjustment assembly 50 may further include an adjustment handle 53 , which is disposed at one end of the adjustment rod 51 and away from the transmission member 52 . By rotating the adjustment handle 53 , the adjustment rod 51 can be driven to rotate synchronously.
  • the adjustment handle 53 can be located outside the range of the bottom frame 11, which is convenient for the operator to operate.
  • the base frame assembly 10 may further include a universal wheel 17 , which is arranged on the base frame 11 , and may have a braking function to facilitate the movement and braking of the pitch adjusting device 100 .
  • the number of universal wheels 17 may be four, and the four universal wheels 17 are respectively disposed at four corners of the bottom frame 11 .
  • the chassis frame 11 includes a first chassis beam 111 and a second chassis beam 112 , the first chassis beam 111 and the second chassis beam 112 both extend along the width direction of the chassis frame 11 , and the first chassis beam 111 and the second chassis beams 112 may be spaced apart along the length direction of the chassis frame 11 .
  • the chassis assembly 10 may further include a first screw bearing seat 13 and a second screw bearing seat 14, the first screw bearing seat 13 is arranged on the first chassis beam 111, and the second screw bearing seat 14 is arranged on the second screw bearing seat 14.
  • the base frame beam 112 enables the first screw bearing seat 13 and the second screw bearing seat 14 to be arranged on the base frame 11 at intervals.
  • the outer periphery of the screw rod 31 is sleeved with two bearings corresponding to the first screw rod bearing seat 13 and the second screw rod bearing seat 14 respectively, and the screw rod 31 is rotatably connected to the first screw rod bearing seat 13 and the second screw rod bearing seat 13 through the bearings.
  • Two screw bearing seats 14 are used to rotatably connect the screw 31 to the bottom frame 11 .
  • the bottom frame 11 is further provided with a supporting foot fixing plate 113 , and the first supporting foot 22 and the second supporting foot 23 are lockably arranged on the supporting foot fixing plate 113 .
  • the bottom frame 11 can increase the contact area with the first support foot 22 and the second support foot 23 through the support foot fixing plate 113 to ensure the stability of the top frame 21 during the rotation process.
  • the number of the support foot fixing plates 113 is the same as the sum of the numbers of the first support feet 22 and the second support feet 23 .
  • the number of the first supporting feet 22 and the second supporting feet 23 is two
  • the number of the supporting foot fixing plates 113 may be four
  • the four supporting foot fixing plates 113 are respectively located on the four corners of the base frame 11 . A corner position, and one-to-one correspondence with the first support feet 22 and the second support feet 23 .
  • the base frame assembly 10 may further include a first adjusting rod bearing seat 15 and a second adjusting rod bearing seat 16 , and the first adjusting rod bearing seat 15 and the second adjusting rod bearing seat 16 may be arranged at intervals along the width direction of the base frame 11 .
  • Undercarriage frame 11 The outer circumference of the adjustment rod 51 is provided with two bearings corresponding to the first adjustment rod bearing seat 15 and the second adjustment rod bearing seat 16 respectively, and the adjustment rod 51 is rotatably connected to the first adjustment rod bearing seat 15 and the second adjustment rod bearing seat 15 through the bearings.
  • the two adjusting rod bearing seats 16 realize the rotatable connection of the adjusting rod 51 .
  • FIG. 5 is a partial structural schematic diagram of the adjustment assembly in the pitch adjustment device provided by the embodiment of the present application.
  • the transmission member 52 may include a driving bevel gear 521 and a driven bevel gear that mesh with each other.
  • the gear 522 , the driving bevel gear 521 and the adjusting rod 51 are coaxially connected, and the driven bevel gear 522 and the screw rod 31 are coaxially connected, so as to realize the transmission between the adjusting rod 51 and the screw rod 31 .
  • the transmission member 52 may also be a transmission mechanism composed of spur gears, conveyor belts and other transmission members.
  • the transmission ratio of the driving bevel gear 521 and the driven bevel gear 522 may be greater than 1, so that the operator can adjust the angle between the top frame 21 and the bottom frame 11 in a more labor-saving manner.
  • the transmission ratio of the driving bevel gear 521 and the driven bevel gear 522 may be 2:1.
  • FIG. 6 and FIG. 7 are respectively the thrust simulation diagrams of the pitch adjustment device provided in the embodiment of the present application in the upward adjustment process and the overhead adjustment process.
  • the thrust provided by the screw assembly 30 is required for the engineering projector 200 (in the case of a machine weight of about 200kg) during the top-view adjustment and the bottom-view adjustment process.
  • the maximum required thrust is about 7500N during the upward looking process of the engineering projector 200 .
  • the maximum required thrust is about 4500N.
  • the torque is:
  • T is the required torque
  • F is the thrust provided by the lead screw 31 to the lead screw nut 32 .
  • FIG. 8 is a schematic structural diagram of a support foot in a pitch adjustment device provided by an embodiment of the present application.
  • the first support foot 22 and the second support foot 23 both include a support seat 24 and a fastening
  • the fastener 26 is detachably connected to the support base 24 and the support foot fixing plate 113 , and the support base 24 is also hinged to the top frame frame 21 .
  • the support base 24 and the top frame frame 21 are hingedly connected, and the top frame frame 21 can rotate with the support base 24 as a fulcrum.
  • the top frame assembly 20 may further include a supporting foot connecting plate 25 , and the supporting foot connecting plate 25 is fixedly connected to the top frame frame 21 .
  • the number of the supporting foot connecting plates 25 can be multiple, and they are connected to the top frame 21 opposite to each other. hinged connection between.
  • the fastener 26 may include a fixing bolt 261 and a fixing nut 262.
  • the fixing nut 262 may be pre-fixed to the side of the support foot fixing plate 113 away from the top frame frame 21 by welding or riveting.
  • the support foot fixing plate 113 is provided with a through support.
  • the supporting foot mounting hole 114 of the foot fixing plate 113 (see FIG. 4 for details), the fixing nut 262 is exposed in the supporting foot mounting hole 114, so that the first supporting foot 22 and the second supporting foot 23 only need to be locked by locking the fixing bolt 261. It is fixed to the bottom frame 11, which facilitates quick switching between the top view state and the bottom view state of the pitch adjusting device 100.
  • the connection stability of the first support foot 22 and the second support foot 23 and the underframe frame 11 can be ensured through the bolt connection.
  • the number of the fasteners 26 may be multiple, and the plurality of fasteners 26 are arranged around the circumference of the first support foot 22 and the second support foot 23 to improve the connection stability.
  • each of the first support foot 22 and the second support foot 23 may be connected to the support foot fixing plate 113 through four fasteners 26 .
  • lockable connection between the first support leg 22 , the second support leg 23 and the bottom frame 11 can also be achieved in other ways, such as snap connection, connection sleeve connection and the like.
  • FIG. 9 is a schematic structural diagram of the push rod assembly in the pitch adjustment device provided by the embodiment of the present application.
  • the pulley 43 can freely rotate relative to the connecting rod 42 .
  • the bottom frame assembly 10 further includes a slide rail 12, the slide rail 12 is arranged on the bottom frame frame 11, the extension direction of the slide rail 12 is consistent with the length direction of the bottom frame frame 11, and the length of the slide rail 12 can be equal to or greater than that of the screw nut 32. Stroke on the lead screw 31.
  • the pulley 43 is slidably matched with the slide rail 12 to reduce the frictional force between the connecting rod 42 and the bottom frame 11, which is convenient for the user to operate.
  • the slide rail 12 can limit the reciprocating motion of the pulley 43 only along the extending direction of the slide rail 12 to avoid offset and ensure the stability of the screw assembly 30 and the push assembly 40 during movement.
  • the pulley 43 may be a double pulley structure with an annular groove in the middle, the cross section of the sliding rail 12 may be triangular, and the sliding rail 12 is adapted to the annular groove, so as to realize the sliding fit with the pulley 43 at the same time.
  • the limit pulley 43 can only slide along the slide rail 12 .
  • the push rod assembly 40 may further include a push rod connecting frame 44 and two spaced push rod connecting plates 45 .
  • the cross section of the connecting rod 42 can be rectangular, the two push rod connecting plates 45 are fixedly connected to opposite sides of the connecting rod 42 respectively, and the pulley 43 is rotatably connected between the two push rod connecting plates 45 to realize the pulley 43. Swivel connection.
  • the push rod connecting frame 44 is substantially concave, the push rod connecting frame 44 is fixedly connected to the push rod 41 , and the two push rod connecting plates 45 are hinged to the push rod connecting frame 44 to rotatably connect the connecting rod 42 to the push rod 41 . .
  • the connecting rod 42 may include a first connecting sub-rod 421 and a second connecting sub-rod 422 , and the first connecting sub-rod 421 and the second connecting sub-rod 422 are hinged to two ends of the push rod 41 respectively.
  • the first connecting sub-rod 421 and the second connecting sub-rod 422 jointly push the top frame 21 to rotate, so that the connection stability between the push rod assembly 40 and the top frame 21 can be improved.
  • the number of pulleys 43 , slide rails 12 , and push rod connecting frames 44 is two, and the number of push rod connecting plates 45 is four.
  • the screw rod 31 may be located between the first connecting sub-rod 421 and the second connecting sub-rod 422 .
  • the lead screw nut 32 (see FIG. 3 ) is connected to the middle position of the push rod 41 , so that the push rod 41 can be balanced.
  • the connecting rod 42 may further include one or more third connecting sub-rods, and the third connecting sub-rods have the same structure as the first connecting sub-rod 421 and the second connecting sub-rod 422 .
  • the rods 421 , the second connecting sub-rods 422 and the third connecting sub-rods can be arranged at intervals along the length direction of the push rod 41 .
  • the top frame frame 21 is provided with an object storage surface 213 that is away from the bottom frame frame 11
  • the top frame assembly 20 also includes a connecting rod bearing seat 27, the connecting rod bearing seat 27 is arranged on the object placement surface 213, and one end of the connecting rod 42 is rotatably connected to the rod bearing seat 27.
  • the number of connecting rod bearing seats 27 may be two, and the two connecting rod bearing seats 27 are respectively disposed on the top frame 21 . both ends in the width direction.
  • the connecting rod bearing seat 27 may also be disposed on the side of the top frame 21 facing the bottom frame 11 .
  • the top frame assembly 20 may further include a top frame beam 28 and a top frame fixing stud 29 .
  • the top frame beam 28 is disposed on the top frame frame 21 and extends along the width direction of the top frame frame 21 .
  • There may be a plurality of top frame beams 28 , and the plurality of top frame beams 28 may be arranged at intervals along the length direction of the top frame frame 21 for supporting the engineering projector 200 .
  • the number of the top frame beams 28 may be three, wherein the two top frame beams 28 are located at the first end 211 and the second end 212 respectively.
  • the top frame fixing studs 29 can be arranged on the top frame beam 28, and are suitable for connecting the engineering projector 200 and other equipment to be fixed.
  • the number of the top frame fixing studs 29 can be set according to actual needs, which is not specifically limited in this embodiment. In some embodiments, the top frame fixing studs 29 may also be provided at other positions on the top frame frame 21 .
  • the engineering projector 200 is fixed to the top rack frame 21 through the top rack fixing bolts 29 , and the projection lens of the engineering projector 200 may be located at the first end 211 .
  • the second supporting feet 23 are fixedly connected to the bottom frame 11 , and the first supporting feet 22 are loosened, so that the top frame 21 can rotate with the second supporting feet 23 as the fulcrum. .
  • the adjustment handle 53 rotates the top frame 21 to rotate upward through the screw assembly 30 and the push rod assembly 40, and adjusts the angle between the top frame 21 and the bottom frame 11, so as to realize the engineering projector 200 Angle adjustment in looking up state.
  • the first support leg 22 is fixedly connected to the bottom frame 11, and the second support leg 23 is loosened, so that the top frame 21 can use the first support leg 22 as a fulcrum. turn.
  • the adjustment handle 53 can also push the top frame 21 to rotate upward through the screw assembly 30 and the push rod assembly 40, and adjust the angle between the top frame 21 and the bottom frame 11, so as to realize the engineering Angle adjustment of the projector 200 in a plan view state.

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Abstract

公开了一种俯仰调节装置（100），包括底架组件（10）、顶架组件（20）、丝杆组件（30）和推杆组件（40），底架组件（10）包括底架框架（11）；顶架组件（20）包括顶架框架（21）、第一支撑脚（22）和第二支撑脚（23），第一支撑脚（22）和第二支撑脚（23）连接于顶架框架（21），且第一支撑脚（22）和第二支撑脚（23）可锁固地设置于底架框架（11），顶架框架（21）选择性地以第一支撑脚（22）或者第二支撑脚（23）为支点进行转动；丝杆组件（30）包括丝杆（31）和丝杆螺母（32），丝杆（31）可转动地设置于底架框架（11），丝杆螺母（32）套设于丝杆（31）的外周；推杆组件（40）包括推杆（41）和连接杆（42），推杆（41）连接于丝杆螺母（32），连接杆（42）的一端可转动地连接于顶架框架（21），连接杆（42）的另一端可转动地连接于推杆（41）；该俯仰调节装置能够在俯视状态和仰视状态之间切换，适用于多种使用场景。

Description

俯仰调节装置 技术领域
本申请涉及载物装置技术领域，具体涉及一种俯仰调节装置。
背景技术
大型的工程投影机通常被应用在一些特殊的场合，例如点亮一栋高的建筑，或者照明一座山，在这些应用场景中，需要调节工程投影机的安装角度，以进行仰式投射或者俯视投射。相关技术通过支撑架或者吊装的方式调节工程投影机的俯仰角度，例如，将工程投影机安装在支撑架上，支撑架底部安装有4个或6个支撑脚，每个支撑脚通过螺杆与支撑架连接，可通过旋转螺杆调节每个支撑脚的高度，从而实现工程投影机俯仰角度的调节。然而，这种调节方式极大地限制了俯仰调节的角度范围(小于±10°)，同时需要依次调节每个支撑脚的高度，操作较为繁琐。而吊装的方式虽然可以实现工程投影机大幅度的俯仰调节，但是需要提供较大的起重机或龙门吊车用于吊装工程投影机，成本较高且适用范围较小。
实用新型内容
本申请的目的在于提出一种俯仰调节装置，以解决上述问题。本申请通过以下技术方案来实现上述目的。
本申请实施例提供了一种俯仰调节装置，包括底架组件、顶架组件、丝杆组件和推杆组件，底架组件包括底架框架；顶架组件包括顶架框架、第一支撑脚和 第二支撑脚，顶架框架包括相对的第一端和第二端，第一支撑脚连接于顶架框架并位于第一端，第二支撑脚连接于顶架框架并位于第二端，第一支撑脚和第二支撑脚可锁固地设置于底架框架，顶架框架选择性地以第一支撑脚或者第二支撑脚为支点进行转动；丝杆组件包括丝杆和丝杆螺母，丝杆可转动地设置于底架框架，丝杆螺母套设于丝杆的外周，并与丝杆螺纹连接；推杆组件包括推杆和连接杆，推杆连接于丝杆螺母，连接杆至少部分位于顶架框架和底架框架之间，连接杆的一端可转动地连接于顶架框架，连接杆的另一端可转动地连接于推杆。
在一种实施方式中，俯仰调节装置还包括调节组件，调节组件包括调节杆和传动件，调节杆可转动地设置于底架框架，调节杆的轴线与丝杆的轴线成预定角度，传动件与调节杆和丝杆传动连接。
在一种实施方式中，传动件包括相互啮合的主动锥形齿轮和从动锥形齿轮，主动锥形齿轮与调节杆同轴连接，从动锥形齿轮与调节杆同轴连接，主动锥形齿轮和从动锥形齿轮的传动比大于1。
在一种实施方式中，推杆组件还包括滑轮，滑轮铰接于连接杆的一端；底架组件还包括滑轨，滑轨设置于底架框架，滑轮与滑轨滑动配合。
在一种实施方式中，底架框架设有支撑脚固定板，第一支撑脚和第二支撑脚可锁固地设置于支撑脚固定板。
在一种实施方式中，第一支撑脚和第二支撑脚均包括支撑座和紧固件，紧固件可拆卸地连接于支撑座和支撑脚固定板，支撑座铰接于顶架框架。
在一种实施方式中，底架组件还包括第一丝杆轴承座和第二丝杆轴承座，第一丝杆轴承座和第二丝杆轴承座间隔设置于底架框架，丝杆可转动地连接于第一丝杆轴承座和第二丝杆轴承座。
在一种实施方式中，顶架框架设有与底架框架相背离的置物面，顶架组件还 包括连接杆轴承座，连接杆轴承座设置于置物面，连接杆可转动地连接于连接杆轴承座。
在一种实施方式中，连接杆包括第一连接子杆和第二连接子杆，第一连接子杆和第二连接子杆分别铰接于推杆的两端，丝杆位于第一连接子杆和第二连接子杆之间。
在一种实施方式中，底架组件还包括万向轮，万向轮设置于底架框架。
相较于现有技术，本申请实施例提供的俯仰调节装置通过第一支撑脚和第二支撑脚与底架框架的可锁固连接，顶架框架能够选择性地以第一支撑脚或者第二支撑脚为支点进行转动，实现俯仰调节装置在俯视状态和仰视状态之间的切换；同时，俯仰调节装置通过丝杆组件和推杆组件的传动配合能够以较小的力实现大范围的俯仰角度调节，操作方便，适用范围广。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本申请实施例提供的俯仰调节装置的结构示意图。
图2是本申请实施例提供的俯仰调节装置在仰视状态下的结构示意图。
图3是本申请实施例提供的俯仰调节装置在俯视状态下的结构示意图。
图4是本申请实施例提供的俯仰调节装置中底架组件和丝杆组件的结构示意图。
图5是本申请实施例提供的俯仰调节装置中调节组件的局部结构示意图。
图6是本申请实施例提供的俯仰调节装置在仰视调节过程的推力模拟图。
图7是本申请实施例提供的俯仰调节装置在俯视调节过程的推力模拟图。
图8是本申请实施例提供的俯仰调节装置中支撑脚的结构示意图。
图9是本申请实施例提供的俯仰调节装置中推杆组件的结构示意图。
图10是本申请实施例提供的俯仰调节装置中顶架组件的结构示意图。
具体实施方式
下面详细描述本申请的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本申请，而不能理解为对本申请的限制。
本申请实施例提供的俯仰调节装置可应用于工程投影机，实现工程投影机的俯仰角度调节。当然，本申请实施例提供的俯仰调节装置也可以应用于其他领域，实现其他一些设备的俯仰角度调节，例如录像机、照相机、照明设备等等任何需要调节俯仰角度的电子设备或者非电子设备，本实施例对此并不具体限定。
为了使本技术领域的人员更好地理解本申请方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整的描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
图1是本申请实施例提供的俯仰调节装置的结构示意图，如图1所示，俯仰调节装置100包括底架组件10、顶架组件20、丝杆组件30和推杆组件40。
底架组件10包括底架框架11。
顶架组件20包括顶架框架21、第一支撑脚22和第二支撑脚23，第一支撑脚22和第二支撑脚23可锁固地设置于底架框架11。
顶架框架21包括相对的第一端211和第二端212，示例性的，第一端211和第二端212可以分别位于顶架框架21的长度方向两端。第一支撑脚22连接于顶架框架21并位于第一端211，第二支撑脚23连接于顶架框架21并位于第二端212，顶架框架21选择性地以第一支撑脚22或者第二支撑脚23为支点进行转动，以调节顶架框架21与底架框架11之间的夹角。
在本实施例中，底架框架11和顶架框架21大致为矩形框架结构，顶架框架21的外形大小可与底架框架11的外形大小一致或者在一定的误差范围内。
图2是本申请实施例提供的俯仰调节装置在仰视状态下的结构示意图，结合图1和图2所示，俯仰调节装置100可用于调节工程投影机200的俯仰角度，当第一支撑脚22脱离底架框架11，第二支撑脚23连接于底架框架11，顶架框架21能够以第二支撑脚23为支点相对底架框架11进行转动，实现工程投影机200在仰视状态下的角度调节。
图3是本申请实施例提供的俯仰调节装置在俯视状态下的结构示意图，结合图1和图3所示，当第一支撑脚22连接于底架框架11，第二支撑脚23脱离底架框架11时，顶架框架21能够以第一支撑脚22为支点相对底架框架11进行转动，实现工程投影机200在俯视状态下的角度调节。
俯仰调节装置100通过选择将第一支撑脚22或者第二支撑脚23连接于底架框架11，可以实现工程投影机200在俯视状态和仰视状态之间的切换，使得俯仰调节装置100能够适用于更多的使用场景。
本实施例中，第一支撑脚22数量可以为两个，两个第一支撑脚22相对设置于顶架框架21的宽度方向两侧。第二支撑脚23的数量可以为两个，两个第 二支撑脚23相对设置于顶架框架21的宽度方向两侧。顶架框架21以两个第一支撑脚22或者两个第二支撑脚23为支点进行转动，能够提高顶架框架21在转动过程中的稳定性。在一些实施方式中，第一支撑脚22和第二支撑脚23的数量也可以为一个、三个或者三个以上。
请一并参见图2，丝杆组件30包括丝杆31和丝杆螺母32，丝杆31可转动地设置于底架框架11，丝杆螺母32套设于丝杆31的外周，并与丝杆31螺纹连接。通过正向或者反向旋转丝杆31时，丝杆螺母32可以沿丝杆31的轴向往复移动，丝杆31的轴向可以与底架框架11的长度方向一致。
推杆组件40包括推杆41和连接杆42，推杆41连接于丝杆螺母32，推杆41的轴向可以与丝杆31的轴向相互垂直，丝杆螺母32带动推杆41沿丝杆31的轴向同步移动。连接杆42至少部分位于顶架框架21和顶架框架21之间，连接杆42的一端可转动地连接于顶架框架21，连接杆42的另一端可转动地连接于推杆41。
在实际操作过程中，通过旋转丝杆31使得丝杆螺母32沿丝杆31的轴向移动，在丝杆螺母32的带动下，推杆41同步沿丝杆31的轴向移动，并给予连接杆42推力，连接杆42在推杆41的推动下产生对顶架框架21向上的推力，从而推动顶架框架21朝上转动，实现工程投影机200的俯仰角度调节。当顶架框架21调节至一定的角度时，松开丝杆31，由于丝杆传动具有自锁特性，丝杆螺母32不会因为受到工程投影机200的重力作用而反向移动，可以将顶架框架21固定在现有的位置。另外，利用丝杆传动的特点，以较小的力旋转丝杆31即可以实现大重量的工程投影机200的俯仰角度调节，使得操作更加省力、轻松。
顶架框架21相对底架框架11的最大角度可以达到45°，满足工程投影机200的日常使用需求。当然，本领域技术人员可以根据实际需求调整俯仰调节装 置100的尺寸，例如连接杆42和顶架框架21的长度等等，从而调节俯仰调节装置100的俯仰角度调节范围。
图4是本申请实施例提供的俯仰调节装置中底架组件和丝杆组件的结构示意图，结合图1和图4所示，俯仰调节装置100还包括调节组件50，调节组件50包括调节杆51和传动件52，调节杆51可转动地设置于底架框架11，调节杆51的轴线与丝杆31的轴线成预定角度，转动件52与调节杆51和丝杆31传动连接。在实际操作过程中，可旋转调节杆51，调节杆51通过传动件52带动丝杆31进行旋转，进而实现俯仰调节装置100的俯仰角度调节。调节杆51的轴线与丝杆31的轴线可以相互垂直，从而能够在工程投影机200的侧面进行俯仰调节装置100的角度调节操作，避免干扰投影光线的投射。
调节组件50还可以包括调节握把53，调节握把53设置于调节杆51的一端，并与传动件52相互背离，通过旋转调节握把53即可以带动调节杆51进行同步转动。调节握把53可以位于底架框架11的范围外，方便操作人员进行操作。
底架组件10还可以包括万向轮17，万向轮17设置于底架框架11，且万向轮17可以具有刹车功能，方便俯仰调节装置100的移动和制动。示例性的，万向轮17的数量可以为四个，四个万向轮17分别设置于底架框架11的四个拐角处。
底架框架11包括第一底架横梁111和第二底架横梁112，第一底架横梁111和第二底架横梁112均沿底架框架11的宽度方向延伸，且第一底架横梁111和第二底架横梁112可以沿底架框架11的长度方向间隔设置。
底架组件10还可以包括第一丝杆轴承座13和第二丝杆轴承座14，第一丝杆轴承座13设置于第一底架横梁111，第二丝杆轴承座14设置于第二底架横梁 112，使得第一丝杆轴承座13和第二丝杆轴承座14可以间隔设置于底架框架11。丝杆31的外周套设有两个分别与第一丝杆轴承座13和第二丝杆轴承座14对应的轴承，丝杆31通过轴承可转动地连接于第一丝杆轴承座13和第二丝杆轴承座14，以将丝杆31可转动地连接于底架框架11。
底架框架11还设有支撑脚固定板113，第一支撑脚22和第二支撑脚23可锁固地设置于支撑脚固定板113。底架框架11通过支撑脚固定板113可以增加和第一支撑脚22、第二支撑脚23的接触面积，保证顶架框架21在转动过程中的稳定性。支撑脚固定板113的数量与第一支撑脚22和第二支撑脚23的数量总和一致。作为一种示例，第一支撑脚22和第二支撑脚23的数量均为两个，支撑脚固定板113的数量可以为四个，四个支撑脚固定板113分别位于底架框架11的四个拐角位置，并与第一支撑脚22和第二支撑脚23一一对应。
底架组件10还可以包括第一调节杆轴承座15和第二调节杆轴承座16，第一调节杆轴承座15和第二调节杆轴承座16可以沿底架框架11的宽度方向间隔设置于底架框架11。调节杆51的外周套设有两个分别与第一调节杆轴承座15和第二调节杆轴承座16对应的轴承，调节杆51通过轴承可转动地连接于第一调节杆轴承座15和第二调节杆轴承座16，实现调节杆51的可转动连接。
图5是本申请实施例提供的俯仰调节装置中调节组件的局部结构示意图，结合图1、图4和图5所示，传动件52可以包括相互啮合的主动锥形齿轮521和从动锥形齿轮522，主动锥形齿轮521和调节杆51同轴连接，从动锥形齿轮522和丝杆31同轴连接，从而实现调节杆51和丝杆31之间的传动。在其他一些实施方式中，传动件52也可以是直齿轮、传送带等其他一些传动件组成的传动机构。
主动锥形齿轮521和从动锥形齿轮522的传动比可以大于1，以使操作人员 能够以更加省力的方式调节顶架框架21与底架框架11之间的夹角。示例性的，主动锥形齿轮521和从动锥形齿轮522的传动比可以为2：1。
图6、图7分别是本申请实施例提供的俯仰调节装置在仰视调节过程和俯视调节过程中的推力模拟图，结合图1、图6和图7所示，通过受力分析，可以模拟出工程投影机200(在机器重量约为200kg的情况下)在俯视调节和仰视调节过程中所需丝杆组件30提供的推力。由受力分析可得，在工程投影机200仰视过程中，所需推力最大值约为7500N。在俯视过程中，所需推力最大值约为4500N。根据丝杆扭矩与推力的换算公式，在丝杆导程L＝3mm，丝杆传动效率e＝90％的情况下，扭矩为：
T＝F×L/(2×3.14×e)
其中，T为所需扭矩，F为丝杆31提供给丝杆螺母32的推力。当扭矩T＝4.2Nm(牛顿*米)时，丝杆31提供给丝杆螺母32的推力为8000N，满足俯仰调节过程所需的最大推力。当选用传动比为2：1的主动锥形齿轮521和从动锥形齿轮522时，操作人员最大只需给调节握把53提供2.1Nm(牛顿*米)的扭矩，即可完成顶架框架21与底架框架11之间夹角的调节，操作更加省力。
图8是本申请实施例提供的俯仰调节装置中支撑脚的结构示意图，结合图1、图4和图8所示，第一支撑脚22和第二支撑脚23均包括支撑座24和紧固件26，紧固件26可拆卸地连接于支撑座24和支撑脚固定板113，支撑座24还铰接于顶架框架21。当支撑座24通过紧固件26固定连接于支撑脚固定板113后，通过支撑座24和顶架框架21之间的铰接相连，顶架框架21能够以支撑座24为支点进行转动。
本实施例中，顶架组件20还可以包括支撑脚连接板25，支撑脚连接板25固定连接于顶架框架21。支撑脚连接板25的数量可以有多个，并两两相对的连 接于顶架框架21，支撑座24铰接于相对的两个支撑脚连接板25之间，实现支撑座24和顶架框架21之间的铰接连接。
紧固件26可以包括固定螺栓261和固定螺母262，固定螺母262可以通过焊接或铆接等方式预先固定于支撑脚固定板113背离顶架框架21的一侧，支撑脚固定板113设置有贯穿支撑脚固定板113的支撑脚装配孔114(详见图4)，固定螺母262显露于支撑脚装配孔114，从而只需要锁紧固定螺栓261即可以将第一支撑脚22和第二支撑脚23固定于底架框架11，方便在俯仰调节装置100的俯视状态和仰视状态之间进行快速切换。同时，通过螺栓连接可以保证第一支撑脚22和第二支撑脚23与底架框架11的连接稳定性。
紧固件26的数量可以为多个，多个紧固件26围绕第一支撑脚22和第二支撑脚23的周向设置，以提高连接稳定性。作为一种示例，每个第一支撑脚22和第二支撑脚23均可以通过四个紧固件26连接于支撑脚固定板113。
当然，也可以通过其他方式实现第一支撑脚22、第二支撑脚23和底架框架11的可锁固连接，例如卡合连接，连接套连接等等。
图9是本申请实施例提供的俯仰调节装置中推杆组件的结构示意图，结合图1、图4和图9所示，推杆组件40还可以包括滑轮43，滑轮43铰接于连接杆42的一端，滑轮43可相对连接杆42自由转动。
底架组件10还包括滑轨12，滑轨12设置于底架框架11，滑轨12的延伸方向与底架框架11的长度方向一致，滑轨12的长度可以等于或者大于丝杆螺母32在丝杆31上的行程。滑轮43与滑轨12滑动配合，以减少连接杆42和底架框架11之间的摩檫力，方便用户操作。另外，滑轨12可以限制滑轮43只能沿滑轨12的延伸方向作往复运动，避免发生偏移，保证丝杆组件30和推动组件40在运动过程中的稳定性。
在一些实施方式中，滑轮43可以是中间设有环形凹槽的双滑轮结构，滑轨12的横截面可以为三角形，滑轨12适配于该环形凹槽，实现与滑轮43滑动配合的同时限制滑轮43仅能沿滑轨12进行滑动。
推杆组件40还可以包括推杆连接架44和两个间隔设置的推杆连接板45。连接杆42的横截面可以为矩形，两个推杆连接板45分别固定连接于连接杆42的相对两侧，滑轮43可旋转地连接于两个推杆连接板45之间，实现滑轮43的可转动连接。推杆连接架44大致呈凹字形，推杆连接架44固定连接于推杆41，两个推杆连接板45铰接于推杆连接架44，以将连接杆42可转动地连接于推杆41。
连接杆42可以包括第一连接子杆421和第二连接子杆422，第一连接子杆421和第二连接子杆422分别铰接于推杆41的两端。通过第一连接子杆421和第二连接子杆422共同推动顶架框架21进行转动，可以提高推杆组件40和顶架框架21之间的连接稳定性。对应的，滑轮43、滑轨12、推杆连接架44的数量均为两个，推杆连接板45的数量为四个。
丝杆31可以位于第一连接子杆421和第二连接子杆422之间。在一些实施方式中，丝杆螺母32(参见图3)连接于推杆41的中间位置，使得推杆41可以平衡受力。
在一些实施方式中，连接杆42还可以包括一个或者多个的第三连接子杆，第三连接子杆与第一连接子杆421和第二连接子杆422的结构一致，第一连接子杆421、第二连接子杆422和第三连接子杆可以沿推杆41的长度方向间隔排列设置。
图10是本申请实施例提供的俯仰调节装置中顶架组件的结构示意图，结合图1和图10所示，顶架框架21设有与底架框架11相背离的置物面213，顶架 组件20还包括连接杆轴承座27，连接杆轴承座27设置于置物面213，连接杆42的一端可转动地连接杆轴承座27。在一些实施方式中，与第一连接子杆421和第二连接子杆422相对应，连接杆轴承座27的数量可以为两个，两个连接杆轴承座27分别设置于顶架框架21的宽度方向两端。在其他一些实施方式中，连接杆轴承座27也可以设置于顶架框架21朝向底架框架11的一侧。
顶架组件20还可以包括顶架横梁28和顶架固定螺柱29，顶架横梁28设置于顶架框架21，并沿顶架框架21的宽度方向延伸。顶架横梁28可以有多个，多个顶架横梁28可以沿顶架框架21的长度方向间隔设置，用于支撑工程投影机200。作为一种示例，顶架横梁28的数量可以有三个，其中两个顶架横梁28分别位于第一端211和第二端212。
顶架固定螺柱29可以设置于顶架横梁28，适用于连接工程投影机200等设待固定设备。顶架固定螺柱29的数量可以根据实际需求进行设置，本实施例并不具体限定。在一些实施方式中，顶架固定螺柱29也可以设置于顶架框架21的其他位置。
以下结合图1至图10所示对俯仰调节装置100的俯仰调节过程进行说明：
首先，将工程投影机200通过顶架固定螺柱29固定于顶架框架21，工程投影机200的投影镜头可以位于第一端211。
当需要将工程投影机200调整至仰视状态，将第二支撑脚23固定连接于底架框架11，松开第一支撑脚22，使得顶架框架21能够以第二支撑脚23为支点进行转动。而后旋转调节握把53，调节握把53通过丝杆组件30和推杆组件40推动顶架框架21朝上转动，调节顶架框架21和底架框架11之间的夹角，实现工程投影机200在仰视状态下的角度调节。
当需要将工程投影机200调整至俯视状态时，将第一支撑脚22固定连接于 底架框架11，松开第二支撑脚23，使得顶架框架21能够以第一支撑脚22为支点进行转动。而后旋转调节握把53，调节握把53同样可以通过丝杆组件30和推杆组件40推动顶架框架21朝上转动，调节顶架框架21和底架框架11之间的夹角，实现工程投影机200在俯视状态下的角度调节。
以上所述，仅是本申请的较佳实施例而已，并非对本申请作任何形式上的限制，虽然本申请已以较佳实施例揭示如上，然而并非用以限定本申请，任何本领域技术人员，在不脱离本申请技术方案范围内，当可利用上述揭示的技术内容做出些许更动或修饰为等同变化的等效实施例，但凡是未脱离本申请技术方案内容，依据本申请的技术实质对以上实施例所作的任何简介修改、等同变化与修饰，均仍属于本申请技术方案的范围内。

Claims (10)

  1. 一种俯仰调节装置，其特征在于，包括：
    底架组件，包括底架框架；
    顶架组件，包括顶架框架、第一支撑脚和第二支撑脚，所述顶架框架包括相对的第一端和第二端，所述第一支撑脚连接于所述顶架框架并位于所述第一端，所述第二支撑脚连接于所述顶架框架并位于所述第二端，所述第一支撑脚和所述第二支撑脚可锁固地设置于所述底架框架，所述顶架框架选择性地以所述第一支撑脚或者所述第二支撑脚为支点进行转动；
    丝杆组件，包括丝杆和丝杆螺母，所述丝杆可转动地设置于所述底架框架，所述丝杆螺母套设于所述丝杆的外周，并与所述丝杆螺纹连接；
    推杆组件，包括推杆和连接杆，所述推杆连接于所述丝杆螺母，所述连接杆至少部分位于所述顶架框架和所述底架框架之间，所述连接杆的一端可转动地连接于所述顶架框架，所述连接杆的另一端可转动地连接于所述推杆。
  2. 根据权利要求1所述的俯仰调节装置，其特征在于，所述俯仰调节装置还包括调节组件，所述调节组件包括调节杆和传动件，所述调节杆可转动地设置于所述底架框架，所述调节杆的轴线与所述丝杆的轴线成预定角度，所述传动件与所述调节杆和所述丝杆传动连接。
  3. 根据权利要求2所述的俯仰调节装置，其特征在于，所述传动件包括相互啮合的主动锥形齿轮和从动锥形齿轮，所述主动锥形齿轮与所述调节杆同轴连接，所述从动锥形齿轮与所述调节杆同轴连接，所述主动锥形齿轮和所述从动锥形齿轮的传动比大于1。
  4. 根据权利要求1所述的俯仰调节装置，其特征在于，所述推杆组件还包括滑轮，所述滑轮铰接于所述连接杆的一端；所述底架组件还包括滑轨，所述滑轨 设置于所述底架框架，所述滑轮与所述滑轨滑动配合。
  5. 根据权利要求1所述的俯仰调节装置，其特征在于，所述底架框架设有支撑脚固定板，所述第一支撑脚和所述第二支撑脚可锁固地设置于所述支撑脚固定板。
  6. 根据权利要求5所述的俯仰调节装置，其特征在于，所述第一支撑脚和所述第二支撑脚均包括支撑座和紧固件，所述紧固件可拆卸地连接于所述支撑座和所述支撑脚固定板，所述支撑座铰接于所述顶架框架。
  7. 根据权利要求1所述的俯仰调节装置，其特征在于，所述底架组件还包括第一丝杆轴承座和第二丝杆轴承座，所述第一丝杆轴承座和所述第二丝杆轴承座间隔设置于所述底架框架，所述丝杆可转动地连接于所述第一丝杆轴承座和所述第二丝杆轴承座。
  8. 根据权利要求1所述的俯仰调节装置，其特征在于，所述顶架框架设有与所述底架框架相背离的置物面，所述顶架组件还包括连接杆轴承座，所述连接杆轴承座设置于所述置物面，所述连接杆可转动地连接于所述连接杆轴承座。
  9. 根据权利要求1所述的俯仰调节装置，其特征在于，所述连接杆包括第一连接子杆和第二连接子杆，所述第一连接子杆和所述第二连接子杆分别铰接于所述推杆的两端，所述丝杆位于所述第一连接子杆和所述第二连接子杆之间。
  10. 根据权利要求1所述的俯仰调节装置，其特征在于，所述底架组件还包括万向轮，所述万向轮设置于所述底架框架。
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CN119047274A (zh) * 2024-10-30 2024-11-29 湖南农业大学 一种俯仰机构铰接支点布局优化设计方法

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