CN115899477A - Liftable projecting apparatus - Google Patents
Liftable projecting apparatus Download PDFInfo
- Publication number
- CN115899477A CN115899477A CN202211481178.3A CN202211481178A CN115899477A CN 115899477 A CN115899477 A CN 115899477A CN 202211481178 A CN202211481178 A CN 202211481178A CN 115899477 A CN115899477 A CN 115899477A
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- Prior art keywords
- wheel
- liftable
- threaded rod
- bottom plate
- worm
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- 230000000670 limiting effect Effects 0.000 claims abstract description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 11
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 11
- 241001330002 Bambuseae Species 0.000 claims description 11
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 11
- 239000011425 bamboo Substances 0.000 claims description 11
- 230000003028 elevating effect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000030279 gene silencing Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The invention relates to the technical field of projectors, in particular to a liftable projector which comprises a bottom plate, wherein a lifting device is arranged on the bottom plate, a projector body is installed at the moving end of the lifting device, the lifting device comprises a threaded cylinder which is vertically arranged and is rotatably connected with the bottom plate and provided with internal threads, a threaded rod is sleeved in the threaded cylinder and is meshed with the internal threads, a limiting rod is connected to the inside of the threaded rod in a hollow manner, the bottom end of the limiting rod is fixedly connected with the bottom plate and used for limiting the rotation of the threaded rod, and the projector body is connected with the top end of the threaded rod. The adjustability is good, and stability is high, has solved easy slippage of traditional lifter and unstable problem.
Description
Technical Field
The invention relates to the technical field of projectors, in particular to a lifting projector.
Background
At present, the lifter needs to be used when the projecting apparatus of placing at the desktop goes up and down, the lifter shown in fig. 1, including sleeve 102, pole head 101 and the fastening swivel nut 103 between sleeve 102 and pole head 101, the one end that the sleeve is close to the pole head is the toper uncovered, be equipped with the screw thread on the uncovered, in using, adjust the height of pole head, the fastening swivel nut utilizes screw thread precession back locking pole head to realize fixedly, this kind of mode is when adjusting the pole head height, need frequent elasticity fastening swivel nut, produce the slippage after using for a long time easily, lead to supporting unstably, and take place the condition that the projecting apparatus took place to drop.
Disclosure of Invention
The invention aims to solve the technical problem of providing a lifting projector which is good in adjustability and high in stability and solves the problems that a traditional lifting rod is easy to slip and unstable.
The utility model provides a liftable projecting apparatus, comprises a base plate, be equipped with elevating gear on the bottom plate, the projecting apparatus body is installed to elevating gear's removal end, elevating gear includes vertical arranging and rotates with the bottom plate to be connected and has an internal screw thread section of thick bamboo, screw thread section of thick bamboo endotheca has the threaded rod and is connected with female thread engagement, the threaded rod is inside to be hollow form and to connect the gag lever post, and the bottom plate fixed connection of gag lever post are used for limiting the threaded rod rotation, the projecting apparatus body is connected with the top of threaded rod.
The angle adjusting device comprises an adjusting seat connected with the top end of the threaded rod, an open box-shaped structure is arranged on one side of the adjusting seat, a worm is vertically arranged in the adjusting seat, a worm wheel meshed with the worm is arranged in the adjusting seat close to the opening, the projector body is arranged at the opening and is fixedly connected with the worm wheel, and the angle of the projector body can be adjusted up and down when the worm wheel rotates.
Be equipped with the aggregate unit between elevating gear and the angle adjusting device, be used for switching on or breaking driven switching device between elevating gear and the angle adjusting device on the aggregate unit, the aggregate unit is including the telescopic cylinder and the telescopic link that cup joint mutually, the bottom and the bottom plate of telescopic cylinder rotate to be connected, are the interlock form during circumferential direction between telescopic cylinder and the telescopic link, be connected with wheel one on the bottom outer wall of screw thread section of thick bamboo, be connected with on the bottom outer wall of telescopic cylinder with wheel one engaged with wheel two, the top of telescopic link is connected with wheel three, the one end of worm be connected with wheel three phase engagement's wheel four.
Switch device includes the rotating head and with adjust the stopper that the seat links to each other, the rotating head passes the extension end of taking turns three with the telescopic link and is connected, and the rotating head is kept away from the one end that takes turns three and has the connecting block, the spacing groove that supplies the connecting block to penetrate has on the stopper, it has the bolt of drawing to run through on the stopper of spacing groove one side, have the confession on the connecting block and draw the spacing hole that the bolt penetrated, it has extension spring to draw the welding between bolt and the stopper.
The base is provided with a bearing seat, and the threaded cylinder and the bottom end of the telescopic cylinder are installed in the bearing seat through a bearing.
A connecting clamping seat is cut off from one side of the worm wheel, a clamping groove is formed in the clamping seat, the clamping groove is a blind groove with an upward opening, the cross section of the blind groove is T-shaped, and a clamping block vertically inserted into the clamping groove from the upper side is arranged on the projector body.
The limiting rod is of a non-circular cross section, such as a cross or square cross section.
The telescopic rod has a non-circular section, such as a cross-shaped or square section.
The bottom of bottom plate is equipped with the spike, the bottom of spike is equipped with the silence pad.
By adopting the scheme, the method has the following advantages:
the invention relates to a liftable projector which comprises a bottom plate, wherein a lifting device is arranged on the bottom plate, a projector body is installed at the moving end of the lifting device, the lifting device comprises a threaded cylinder which is vertically arranged and is rotatably connected with the bottom plate and provided with an internal thread, a threaded rod is sleeved in the threaded cylinder and is meshed with the internal thread, a limiting rod is connected to the interior of the threaded rod in a hollow manner, the bottom end of the limiting rod is fixedly connected with the bottom plate and used for limiting the threaded rod to rotate, and the projector body is connected with the top end of the threaded rod. The internal thread that utilizes the screw thread section of thick bamboo can promote the threaded rod and go up and down, because the cooperation of screw thread section of thick bamboo and threaded rod has fine auto-lock nature, can be to the high fine setting of projecting apparatus simultaneously, and stability is high.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a front view of the present invention;
FIG. 3 is a schematic structural diagram of embodiment 3 of the present invention;
FIG. 4 is a schematic structural diagram of embodiment 4 of the present invention;
fig. 5 is a schematic structural diagram of embodiment 5 of the present invention.
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.
As shown in fig. 2-5, a liftable projector, including bottom plate 1, be equipped with elevating gear on the bottom plate 1, projecting apparatus body 18 is installed to elevating gear's removal end, elevating gear just rotates with bottom plate 1 including vertical arranging and is connected and has an internal screw thread section of thick bamboo 2, 2 endotheca of a thread section of thick bamboo have a threaded rod 3 and be connected with the internal thread meshing, 3 inside hollow forms of being of threaded rod are connected gag lever post 13, and the bottom of gag lever post 13 is used for restricting threaded rod 3 rotation with 1 fixed connection of bottom plate, projecting apparatus body 18 is connected with the top of threaded rod 3. It can be known that, when the threaded cylinder 2 is rotated by hand, the center of the threaded rod 3 is limited by the limiting rod 13 to rotate, so that the threaded rod 3 can move up and down along the inner wall of the threaded cylinder 2 in the vertical direction, and the lifting function of the projector is realized.
Example 1: as shown in fig. 2, an angle adjusting device is arranged between the projector body 18 and the lifting device, the angle adjusting device comprises an adjusting seat 4 connected with the top end of the threaded rod 3, one side of the adjusting seat 4 is provided with an open box-shaped structure, a worm 6 is vertically arranged in the adjusting seat 4, a worm wheel 5 meshed with the worm 6 is arranged in the adjusting seat 4 close to the opening, the projector body 18 is arranged at the opening and is fixedly connected with the worm wheel 5, and the angle of the projector body 18 can be adjusted up and down when the worm wheel 5 rotates.
Example 2: as shown in fig. 2 or 3, a linkage device is arranged between the lifting device and the angle adjusting device, a switch device for switching on or off transmission between the lifting device and the angle adjusting device is arranged on the linkage device, the linkage device comprises a telescopic cylinder 7 and a telescopic rod 8 which are sleeved with each other, the bottom end of the telescopic cylinder 7 is rotatably connected with the bottom plate 1, the telescopic cylinder 7 and the telescopic rod 8 are in linkage during circumferential rotation, a first wheel 9 is connected on the outer wall of the bottom of the threaded cylinder 2, a second wheel 10 meshed with the first wheel 9 is connected on the outer wall of the bottom of the telescopic cylinder 7, a third wheel 12 is connected at the top of the telescopic rod 8, and a fourth wheel 11 meshed with the third wheel 12 is connected at one end of the worm 6. It can be known that, when the switching device controls the transmission connection between the lifting device and the angle adjusting device, the transmission path of the switching device is sequentially wheel one 9, wheel two 10, wheel three 12 and wheel four 11, at this time, the thread cylinder 2 rotates, on one hand, the threaded rod 3 can move up and down, on the other hand, the power is transmitted to the worm 6 through the wheel one 9, the wheel two 10, the wheel three 12 and the wheel four 11, and the worm 6 can rotate to adjust the angle of the projector body 18 up and down when the threaded rod 3 moves up and down.
Example 3: as shown in fig. 3, switching device includes rotating head 24 and the stopper 14 that links to each other with adjusting seat 4, rotating head 24 and telescopic link 8 pass the extension end of three 12 and are connected, and there is connecting block 25 rotating head 24 keeps away from the one end of three 12 wheels, the stopper 14 is last to have the spacing groove that supplies connecting block 25 to penetrate, it has the bolt 15 to run through on the stopper 14 of spacing groove one side, there is the spacing hole that supplies to draw bolt 15 to penetrate on the connecting block 25, the welding has extension spring 16 between bolt 15 and the stopper 14. It can be known that the pulling bolt 15 can limit the telescopic rod 8 to be fixedly connected with the adjusting seat 4, in addition, when the pulling bolt 15 fixes the telescopic rod 8, the rotating head 24 can ensure that the telescopic rod 8 in the transmission process can still transmit power, the wheel three 12 and the wheel four 11 can transmit power, further, the pulling bolt 15 resists the tension spring 16 to be disengaged from the limiting hole of the connecting block 25, so that the telescopic rod 8 retracts, the wheel three 12 and the wheel four 11 are disengaged, it should be noted that, after the pulling bolt 15 limits the telescopic rod 8, the wheel three 12 and the wheel four 11 are just in good engagement with each other.
Example 4: as shown in fig. 4, a bearing seat 26 is provided on the base, and the threaded cylinder 2 and the bottom end of the telescopic cylinder 7 are mounted in the bearing seat 26 through a bearing. It can be known that both the threaded cylinder 2 and the telescopic cylinder 7 can be rotary members, and the two rotary members can transmit power between the two rotary members through the connection of the first wheel 9 and the second wheel 10.
Example 5: as shown in fig. 5, a connection card seat 17 is cut off from one side of the worm wheel 5, a card slot 20 is formed in the card seat 17, the card slot 20 is a blind slot with an upward opening, the cross section of the blind slot is T-shaped, and a card block 19 vertically inserted into the card slot 20 from above is arranged on the projector body 18. Therefore, after one end of the projector is clamped with the T-shaped clamping groove 20 through the clamping block 19, the clamping seat 17 can fix the projector, the clamping block 19 can be separated from the clamping seat 17 by lifting the clamping block 19 upwards, and the projector can be taken down easily.
Furthermore, the cross section of the limiting rod 13 positioned in the middle of the threaded rod 3 is a non-circular cross section, and the cross section can be cross-shaped or square, wherein the cross-shaped has a better limiting effect.
Furthermore, the cross section of the telescopic rod 8 positioned in the telescopic cylinder 7 is also a non-circular cross section, and the cross section is cross-shaped or square, wherein the cross-shaped has a better limiting effect.
Furthermore, the bottom of the bottom plate 1 is provided with a supporting foot 22, the bottom of the supporting foot 22 is provided with a silencing pad 23, and the silencing pad 23 is made of PVC material.
The working principle of the invention is as follows: the lift of projecting apparatus, because there is the gag lever post 13 in the threaded rod 3, rotate a screw section of thick bamboo 2 and can drive threaded rod 3 through a screw section of thick bamboo 2 and reciprocate, because the projecting apparatus is connected with threaded rod 3, the lift of projecting apparatus can be realized in reciprocating of threaded rod 3.
Furthermore, the adjustment of the angle of the projector can be realized through an angle adjusting device, the worm 6 is rotated to drive the worm wheel 5 meshed with the worm to deflect, and the projector is fixedly connected with the plane cut off by the worm wheel 5, so that the adjustment of the angle of the projector can be realized after the worm wheel 5 deflects.
Furthermore, the projector angle can be adjusted while the projector is lifted, after the thread cylinder 2 is rotated, the power is transmitted to the worm 6 through the switch device, so that the worm wheel 5 deflects, when the projector reaches a proper height, the transmission is disconnected through the pull bolt 15, the worm wheel 5 can be continuously adjusted through the rotating handle 21 at the top end of the worm 6, and the projector is ensured to be projected and projected at a proper angle; on the contrary, when the projector reaches a proper angle, the pulling bolt 15 is disconnected from transmission, and the threaded cylinder 2 can be rotated to continuously adjust the height of the projector, so that the use requirement is met.
Claims (9)
1. The utility model provides a liftable projecting apparatus, includes bottom plate (1), be equipped with elevating gear on bottom plate (1), projecting apparatus body (18) are installed to elevating gear's removal end, a serial communication port, elevating gear includes vertical arranging and rotates with bottom plate (1) to be connected and have an internal screw thread section of thick bamboo (2), screw thread section of thick bamboo (2) endotheca has threaded rod (3) and is connected with the internal thread meshing, stop lever (13) are connected to threaded rod (3) inside being hollow form, and the bottom of stop lever (13) is used for restricting threaded rod (3) rotation with bottom plate (1) fixed connection, projecting apparatus body (18) are connected with the top of threaded rod (3).
2. A liftable projector according to claim 1, characterized in that an angle adjusting device is arranged between the projector body (18) and the lifting device, the angle adjusting device comprises an adjusting seat (4) connected with the top end of the threaded rod (3), the adjusting seat (4) is of a box-type structure with an opening at one side, a worm (6) is vertically arranged in the adjusting seat (4), a worm wheel (5) meshed with the worm (6) is arranged in the adjusting seat (4) close to the opening, the projector body (18) is arranged at the opening and is fixedly connected with the worm wheel (5), and when the worm wheel (5) rotates, the angle of the projector body (18) can be adjusted up and down.
3. The liftable projector according to claim 2, wherein a linkage device is arranged between the lifting device and the angle adjusting device, the linkage device is provided with a switch device for switching on or off transmission between the lifting device and the angle adjusting device, the linkage device comprises a telescopic cylinder (7) and a telescopic rod (8) which are sleeved with each other, the bottom end of the telescopic cylinder (7) is rotatably connected with the bottom plate (1), the telescopic cylinder (7) and the telescopic rod (8) are in linkage in circumferential rotation, the outer wall of the bottom of the threaded cylinder (2) is connected with a first wheel (9), the outer wall of the bottom of the telescopic cylinder (7) is connected with a second wheel (10) meshed with the first wheel (9), the top of the telescopic rod (8) is connected with a third wheel (12), and one end of the worm (6) is connected with a fourth wheel (11) meshed with the third wheel (12).
4. The liftable projector according to claim 3, wherein the switch device comprises a rotating head (24) and a limiting block (14) connected with the adjusting seat (4), the rotating head (24) is connected with an extending end of the telescopic rod (8) penetrating through the wheel III (12), a connecting block (25) is arranged at one end of the rotating head (24) far away from the wheel III (12), a limiting groove for the connecting block (25) to penetrate is formed in the limiting block (14), a pulling bolt (15) penetrates through the limiting block (14) on one side of the limiting groove, a limiting hole for the pulling bolt (15) to penetrate is formed in the connecting block (25), and a stretching spring (16) is welded between the pulling bolt (15) and the limiting block (14).
5. A liftable projector according to any of claims 1 to 4, wherein a bearing seat (26) is provided on the base, and the threaded cylinder (2) and the bottom end of the telescopic cylinder (7) are mounted in the bearing seat (26) through bearings.
6. The liftable projector according to claim 2, wherein a connecting clamping seat (17) is cut off from one side of the worm wheel (5), a clamping groove (20) is formed in the clamping seat (17), the clamping groove (20) is a blind groove with an upward opening, the cross section of the blind groove is in a T shape, and a clamping block (19) which is vertically inserted into the clamping groove (20) from the upper side is arranged on the projector body (18).
7. A liftable projector according to claim 1, wherein the limiting rod (13) has a non-circular cross-section, such as a cross-shaped or a square cross-section.
8. A liftable projector according to claim 3 or 4, wherein the telescopic rod (8) has a non-circular cross-section, such as a cross-shaped or a square cross-section.
9. Liftable projector according to claim 1, characterized in that a supporting leg (22) is provided at the bottom of the base plate (1), and a silencing pad (23) is provided at the bottom of the supporting leg (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211481178.3A CN115899477A (en) | 2022-11-24 | 2022-11-24 | Liftable projecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211481178.3A CN115899477A (en) | 2022-11-24 | 2022-11-24 | Liftable projecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115899477A true CN115899477A (en) | 2023-04-04 |
Family
ID=86485662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211481178.3A Pending CN115899477A (en) | 2022-11-24 | 2022-11-24 | Liftable projecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115899477A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000045136A (en) * | 1998-12-30 | 2000-07-15 | 박강수 | Apparatus for elevating liquid crystal display projector |
| KR200241394Y1 (en) * | 2001-04-27 | 2001-10-12 | 주식회사세아정밀 | Unit to fix PDP moniter |
| CN204592769U (en) * | 2015-04-22 | 2015-08-26 | 山东友大软件科技有限公司 | Electronic information projector angles adjustment rack |
| CN108036168A (en) * | 2017-12-09 | 2018-05-15 | 新昌县谷德机械有限公司 | A kind of liftable projecting apparatus |
| KR20190096117A (en) * | 2018-02-08 | 2019-08-19 | 소프트상추주식회사 | Panoramic photographing apparatus for photographing panorama image |
| CN210219156U (en) * | 2019-06-14 | 2020-03-31 | 宿迁学院 | Multimedia projection equipment and multimedia transmission system |
| CN212869185U (en) * | 2020-07-30 | 2021-04-02 | 北京和山逢泰科技有限公司 | Projection equipment for fusing media |
| CN216483027U (en) * | 2021-09-22 | 2022-05-10 | 湖北鼎盛测绘有限公司 | House engineering plane mapping device |
-
2022
- 2022-11-24 CN CN202211481178.3A patent/CN115899477A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000045136A (en) * | 1998-12-30 | 2000-07-15 | 박강수 | Apparatus for elevating liquid crystal display projector |
| KR200241394Y1 (en) * | 2001-04-27 | 2001-10-12 | 주식회사세아정밀 | Unit to fix PDP moniter |
| CN204592769U (en) * | 2015-04-22 | 2015-08-26 | 山东友大软件科技有限公司 | Electronic information projector angles adjustment rack |
| CN108036168A (en) * | 2017-12-09 | 2018-05-15 | 新昌县谷德机械有限公司 | A kind of liftable projecting apparatus |
| KR20190096117A (en) * | 2018-02-08 | 2019-08-19 | 소프트상추주식회사 | Panoramic photographing apparatus for photographing panorama image |
| CN210219156U (en) * | 2019-06-14 | 2020-03-31 | 宿迁学院 | Multimedia projection equipment and multimedia transmission system |
| CN212869185U (en) * | 2020-07-30 | 2021-04-02 | 北京和山逢泰科技有限公司 | Projection equipment for fusing media |
| CN216483027U (en) * | 2021-09-22 | 2022-05-10 | 湖北鼎盛测绘有限公司 | House engineering plane mapping device |
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Address after: Room 1505, building C, Xidong chuangfong building, 88 Danshan Road, anzhen street, Xishan District, Wuxi City, Jiangsu Province, 214000 Applicant after: Jiangsu robins Technology Service Co.,Ltd. Address before: 214000 1505, building C, Xidong chuangrong building, No. 88, Danshan Road, anzhen street, Xishan District, Xuzhou City, Jiangsu Province Applicant before: Jiangsu robins Technology Service Co.,Ltd. |