CN113294014A - Telescopic device - Google Patents
Telescopic device Download PDFInfo
- Publication number
- CN113294014A CN113294014A CN202110590977.3A CN202110590977A CN113294014A CN 113294014 A CN113294014 A CN 113294014A CN 202110590977 A CN202110590977 A CN 202110590977A CN 113294014 A CN113294014 A CN 113294014A
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- CN
- China
- Prior art keywords
- sleeve
- telescopic
- sleeves
- telescopic device
- fixed part
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
- E04H3/24—Constructional features of stages
- E04H3/26—Revolving stages; Stages able to be lowered
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/10—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons for meetings, entertainments, or sports
- E04H3/22—Theatres; Concert halls; Studios for broadcasting, cinematography, television or similar purposes
- E04H3/24—Constructional features of stages
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
A telescopic device, it is a mechanical technical field of telescoping, solve the problem that the existing telescopic device is limited by expansion ratio, it includes the pipe string of the consecutive threaded connection of the multilayer, outermost layer pipe string and innermost layer pipe string are connected to fixed part and flexible part of the apparatus respectively, one of outermost layer pipe string and innermost layer pipe string rotates and connects with fixed part or flexible part, another and flexible part or fixed part fixed connection can; in order to avoid the separation of the adjacent sleeves in the extension process, a limiting structure for limiting the separation is arranged between every two adjacent layers of sleeves; the invention is used for telescopic machinery.
Description
Technical Field
The invention belongs to the technical field of telescopic machinery, and particularly relates to a telescopic device.
Background
The existing telescopic device is generally limited by the telescopic ratio, the telescopic ratio is small, and although the telescopic device with the scissor-type structure has the large telescopic ratio, the telescopic device is poor in stability and small in application range.
Disclosure of Invention
The invention aims to solve the problem that the existing telescopic device is limited by the telescopic ratio, and provides a telescopic device, which has the following technical scheme:
a kind of telescoping device, it includes the multi-layer threaded connection sleeve pipe sequentially, as one is fixed and not rotated in outermost sleeve pipe and innermost sleeve pipe, rotate another, can realize the whole extension or shorten, increase a certain extension length under the situation that the contraction length is not changed every one layer of sleeve pipe of increase, thus realize there is no restriction of the expansion ratio; when the device is applied to equipment, the outermost sleeve and the innermost sleeve are respectively connected to a fixed part and a telescopic part of the equipment, one of the outermost sleeve and the innermost sleeve is rotatably connected with the fixed part or the telescopic part, and the other of the outermost sleeve and the innermost sleeve is fixedly connected with the telescopic part or the fixed part;
for example, the outermost sleeve is rotatably connected to the fixed part, the innermost sleeve is fixedly connected to the telescopic part of the equipment, and the telescopic device can extend or retract by rotating the outermost sleeve, so that the telescopic part can extend or retract;
or the outermost layer of the sleeve is fixedly connected to the fixed part, and the innermost layer of the sleeve is rotatably connected to the telescopic part of the equipment;
or the outermost layer of the sleeve is rotationally connected to the telescopic part of the equipment, and the innermost layer of the sleeve is fixedly connected to the fixing part of the equipment;
or the outermost layer of the sleeve is fixedly connected to the telescopic part of the equipment, and the innermost layer of the sleeve is rotatably connected to the fixed part of the equipment;
the invention is a new application of a thread telescopic structure in infinitely increasing the telescopic ratio;
the matching threads between two adjacent layers of sleeves are equal in length, or the length of the internal thread on the outer layer sleeve is larger than the external thread on the inner layer sleeve, or the length of the external thread on the inner layer sleeve is larger than the internal thread on the outer layer sleeve; the matched threads between the two adjacent layers of sleeves are in the condition of unequal length, the threads with smaller length can be arranged at the end part or the non-end part of the sleeve, such as the middle position, and have the advantages of larger single-side expansion amplitude and the like under the condition of the end part;
in order to avoid the separation of the adjacent sleeves in the extension process, a limiting structure for limiting the separation is arranged between every two adjacent layers of sleeves; the limiting structure for limiting separation can comprise that a limiting block is arranged on the threads of one layer of the two adjacent layers of sleeves, a sliding groove corresponding to the limiting block is arranged on the other layer of sleeves, two ends of the sliding groove are blocked by a blocking structure, and the threads matched between the two adjacent layers of sleeves are equal in length or unequal in length and are suitable for adopting the limiting structure; or when the threads matched between the two adjacent layers of sleeves are unequal, the two ends of the longer threads are provided with the plugging structures, and the plugging structures can be any structures capable of plugging the threads, such as bolts or protruding welding points and the like.
The invention has the beneficial effects that: the more the number of layers, the larger the expansion ratio, and the infinite expansion ratio under the condition of no limitation on the diameter, and the expansion on two sides can be realized; the threaded connection structure is stable, and the application range is wide.
Description of the drawings:
FIG. 1 is a schematic diagram comparing the telescoping state of the present invention;
FIG. 2 is a schematic illustration of the mating threads of two adjacent layers of casing being of equal length;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a schematic view of mating threads between two adjacent sleeves, with internal threads on the outer sleeve being longer than external threads on the inner sleeve;
FIG. 5 is a schematic illustration of mating threads between two adjacent sleeves, with the external threads on the inner sleeve being longer than the internal threads on the outer sleeve;
FIG. 6 is an exploded view of FIG. 5;
FIG. 7 is a schematic view of the drive rotation inside the outermost sleeve;
FIG. 8 is a schematic view of a capture condition for space without gravity;
fig. 9 is a schematic view of the state for the elevating stage.
The specific implementation mode is as follows:
referring to fig. 1 to 9, a telescopic device comprises a plurality of layers of sleeves 1 which are sequentially in threaded connection, when one of the outermost sleeve 1-1 and the innermost sleeve 1-2 is fixed and does not rotate, and the other sleeve rotates, the integral extension or shortening can be realized, and a certain extension length can be increased under the condition that the contraction length is not changed by adding one layer of sleeve 1, so that the limitation of no expansion ratio is realized; when the device is applied to equipment, the outermost layer sleeve 1-1 and the innermost layer sleeve 1-2 are respectively connected to the fixed part 2 and the telescopic part 3 of the equipment, one of the outermost layer sleeve 1-1 and the innermost layer sleeve 1-2 is rotatably connected with the fixed part 2 or the telescopic part 3, and the other one is fixedly connected with the telescopic part 3 or the fixed part 2;
for example, the outermost layer sleeve 1-1 is rotatably connected to the fixed part 2, the innermost layer sleeve 1 is fixedly connected to the telescopic part 3 of the equipment, and the telescopic device can extend or retract by rotating the outermost layer sleeve 1-1, so that the telescopic part 3 extends or retracts;
or the outmost layer sleeve 1-1 is fixedly connected to the fixed part 2, and the innermost layer sleeve 1 is rotatably connected to the telescopic part 3 of the equipment;
or the outmost layer sleeve 1-1 is rotationally connected to the telescopic part 3 of the equipment, and the innermost layer sleeve 1 is fixedly connected to the fixed part 2 of the equipment;
or the outermost layer sleeve 1-1 is fixedly connected to the telescopic part 3 of the equipment, and the innermost layer sleeve 1 is rotatably connected to the fixed part 2 of the equipment;
the invention is a new application of a thread telescopic structure in infinitely increasing the telescopic ratio;
the matching threads between two adjacent layers of sleeves 1 are equal in length, or the length of the internal thread on the outer layer sleeve 1 is larger than the length of the external thread on the inner layer sleeve 1, or the length of the external thread on the inner layer sleeve 1 is larger than the length of the internal thread on the outer layer sleeve 1; the matched threads between the two adjacent layers of the sleeves 1 are in the condition of unequal length, the threads with smaller length can be arranged at the end part or the non-end part of the sleeve 1, such as the middle position, and have the advantages of larger single-side expansion amplitude and the like under the condition of the end part;
in order to avoid the separation of the adjacent sleeves 1 in the extension process, a limiting structure for limiting the separation is arranged between every two adjacent layers of sleeves 1; the limiting structure for limiting separation can comprise that a limiting block 4 is arranged on the threads of one layer of the sleeve 1 in the two adjacent layers of the sleeves 1, a sliding groove 4-1 corresponding to the limiting block 4 is arranged on the other layer of the sleeve 1, two ends of the sliding groove 4-1 are sealed by a sealing structure 5, and the limiting structure is suitable for being adopted when the threads matched between the two adjacent layers of the sleeves 1 are equal in length or unequal in length; or when the threads matched between the two adjacent layers of the casing pipes 1 are unequal, the two ends of the longer threads are provided with the plugging structures 5, and the plugging structures 5 can be any structures capable of plugging the threads, such as bolts or protruding welding points and the like.
The telescopic driving device can be driven to extend and retract by manually rotating the sleeve 1, can be driven to extend and retract by any equipment which can drive the sleeve 1 to rotate, such as a motor 6, an engine and the like, and can also be driven by a coupling, a belt, a gear set, a gear chain and the like, or by the friction driving of a rotating part of the motor 6 and the like, which is close to the wall of the sleeve 1; the sleeve 1 can be driven inside and outside, the sleeve 1 can be driven inside, only a gear needs to be arranged on the inner wall of the sleeve 1, in order to not reduce the effective length of threads, the sleeve 1 is properly lengthened, the gear is arranged on the lengthened part, the sleeve can be flexibly used, and the application range is very wide.
Under the condition that the fixed part 2 and the telescopic part 3 of the equipment cannot rotate along with the sleeve 1, only one group of sleeves 1 is used; in the case that the fixed portion 2 or the telescopic portion 3 of the device itself will rotate with the sleeve 1, more than two sets of sleeves 1 may be used at the same time, for example, two sets of sleeves 1 are arranged in parallel, preferably, the two sets of sleeves 1 have opposite thread directions, so that twisting can be avoided during the telescopic process under the condition that the rigidity of the sleeves 1 is poor, and one motor 6 can easily drive two sets of sleeves 1 to synchronously telescope at the same time.
The outermost sleeve 1-1 is rotatably connected to the base 7, and a transmission device such as a gear or a belt pulley is arranged on the outermost sleeve 1-1, so that the outermost sleeve 1-1 is conveniently connected with the fixing part 2 of the application equipment; or a turntable and the like can be preset on application equipment, and the outermost layer sleeve 1-1 is connected to the turntable; a motor 6 is arranged on the base 7, and the motor 6 is in transmission connection with the outermost sleeve 1-1 through a belt, a gear set and the like; or the outermost sleeve 1-1 is driven by a driving device of the application equipment, and the rotation of the driving sleeve 1 is easy to realize in the prior art and is not described in detail; the innermost sleeve 1-2 is provided with a flange, an ear plate and other connecting pieces which are convenient for connecting with the telescopic part 3 of the application equipment, and the innermost sleeve 1-2 is fixedly connected with the telescopic part 3 of the application equipment, so that the prior art is easy to realize and is not described again;
the device can be used for a common telescopic support arm or a telescopic support, can also be used for a sleeve 1 made of a lighter and thin material, such as a carbon fiber pipe, and is used in a space environment without gravity, and the device cannot be bent after being stretched due to no influence of gravity; for example, a catching device 8 such as a hook is arranged on the inner casing 1, and after the catching device is stretched, space debris is caught and recovered; the sleeve pipe 1 is kept in a contraction state in the ground gravity environment, and all the sleeve pipes 1 are overlapped together and are not easy to bend; the sleeve 1 made of lighter and thin materials is small in shrinkage volume and easy to carry.
The device is particularly suitable for equipment with large area and large lifting ratio requirement, such as a lifting stage, and more than two devices are adopted to support the table board 9 of the lifting stage; the outmost layer of the sleeve 1-1 is rotatably connected to the ground, the innermost layer of the sleeve 1-2 is fixedly connected with the table top 9, and the table top 9 is equal to the telescopic part 3 of the equipment; after the table top 9 is lifted, the device can also be used as a step.
Preferably, the number of sleeves 1 is greater than three.
It is further preferred that the number of sleeves 1 is greater than four.
It is still further preferred that the number of sleeves 1 is greater than five.
It is still further preferred that the number of sleeves 1 is greater than six layers.
It is still further preferred that the number of sleeves 1 is greater than seven layers.
It is still further preferred that the number of sleeves 1 is greater than eight layers.
It is still further preferred that the number of sleeves 1 is greater than nine.
It is still further preferred that the number of sleeves 1 is more than ten layers.
It is still further preferred that the number of sleeves 1 is more than ten layers.
It is still further preferred that the number of sleeves 1 is greater than fifteen layers.
As shown in fig. 3, the plugging structure 5 adopts bolts screwed from the outside, so that the assembly and disassembly are very convenient.
Claims (9)
1. A telescopic device, which is characterized by comprising a plurality of layers of sleeves (1) which are sequentially connected by screw threads; a spacing structure for limiting separation is arranged between every two adjacent layers of sleeves (1).
2. A telescopic device according to claim 1, characterised in that the number of sleeves (1) is greater than three.
3. A telescopic device according to claim 1, further comprising a fixed part (2) and a telescopic part (3), wherein the outermost casing (1-1) and the innermost casing (1-2) are connected to the fixed part (2) and the telescopic part (3), respectively, and one of the outermost casing (1-1) and the innermost casing (1-2) is rotatably connected to the fixed part (2) or the telescopic part (3), and the other is fixedly connected to the telescopic part (3) or the fixed part (2).
4. A telescopic device according to claim 3, characterized in that it comprises more than two sets of sleeves (1).
5. The telescopic device according to claim 1, 3 or 4, wherein the separation limiting structure comprises a limiting block (4) arranged on the thread of one layer of the sleeve (1) in the two adjacent layers of the sleeves (1), a sliding groove (4-1) corresponding to the limiting block (4) is arranged on the other layer of the sleeve (1), and two ends of the sliding groove (4-1) are blocked by blocking structures (5).
6. A telescopic device according to claim 1, 3 or 4, characterized in that the co-operating threads between two adjacent layers of casing (1) are of unequal length, and that blocking structures (5) are provided at both ends of the longer threads.
7. A telescopic device according to claim 1, 3 or 4, characterized in that the outermost sleeve (1-1) is pivotally connected to the base (7).
8. A telescopic device according to claim 4, characterized in that a catch (8) is arranged on the inner casing (1).
9. A telescopic device according to claim 4, characterised in that the innermost sleeve (1-2) is fixedly connected to the table top (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110590977.3A CN113294014A (en) | 2021-05-28 | 2021-05-28 | Telescopic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110590977.3A CN113294014A (en) | 2021-05-28 | 2021-05-28 | Telescopic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113294014A true CN113294014A (en) | 2021-08-24 |
Family
ID=77326065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110590977.3A Pending CN113294014A (en) | 2021-05-28 | 2021-05-28 | Telescopic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113294014A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115241797A (en) * | 2022-08-24 | 2022-10-25 | 张海滨 | Electric power maintenance is with multi-functional maintenance support |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1720999A1 (en) * | 1989-03-10 | 1992-03-23 | Ю. А. Дзампаев. В. А. Дзампаев и М. Ю. Дзампаева | Telescopic screw mechanism for conveyance of load |
| DE202006008307U1 (en) * | 2006-05-24 | 2006-08-31 | T-MOTION Technology Co., Ltd., Xindian City | Lifting device, especially for electrical table or bed, has parallel double threaded rods, displacement units, drive device, transfer device connected to first displacement unit, telescopic tubes, second transfer device with rotary sleeve |
| CN203603586U (en) * | 2013-11-27 | 2014-05-21 | 湖南省送变电工程公司 | Equipment support regulating device |
| CN104803319A (en) * | 2014-01-29 | 2015-07-29 | 孙世梁 | Screw pipe set type extensible mechanism |
| CN105947924A (en) * | 2016-05-13 | 2016-09-21 | 张正峰 | Telescopic lifting device and control method thereof |
| CN207073307U (en) * | 2017-08-21 | 2018-03-06 | 江苏佳宇传动设备有限公司 | Telescopic rail component and elevator stage |
| CN110844824A (en) * | 2019-11-15 | 2020-02-28 | 合肥森印科技有限公司 | N-stage electric telescopic device with large telescopic ratio and application thereof |
| CN210635646U (en) * | 2019-10-25 | 2020-05-29 | 广东科凯达智能机器人有限公司 | Telescopic device |
| CN210795683U (en) * | 2019-08-24 | 2020-06-19 | 浙江安华保洁服务有限公司 | Rotary simple lifting clean-keeping workbench |
| CN216456833U (en) * | 2021-11-30 | 2022-05-10 | 北京体育大学 | Telescopic part and sign awl of constituteing thereof |
-
2021
- 2021-05-28 CN CN202110590977.3A patent/CN113294014A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1720999A1 (en) * | 1989-03-10 | 1992-03-23 | Ю. А. Дзампаев. В. А. Дзампаев и М. Ю. Дзампаева | Telescopic screw mechanism for conveyance of load |
| DE202006008307U1 (en) * | 2006-05-24 | 2006-08-31 | T-MOTION Technology Co., Ltd., Xindian City | Lifting device, especially for electrical table or bed, has parallel double threaded rods, displacement units, drive device, transfer device connected to first displacement unit, telescopic tubes, second transfer device with rotary sleeve |
| CN203603586U (en) * | 2013-11-27 | 2014-05-21 | 湖南省送变电工程公司 | Equipment support regulating device |
| CN104803319A (en) * | 2014-01-29 | 2015-07-29 | 孙世梁 | Screw pipe set type extensible mechanism |
| CN105947924A (en) * | 2016-05-13 | 2016-09-21 | 张正峰 | Telescopic lifting device and control method thereof |
| CN207073307U (en) * | 2017-08-21 | 2018-03-06 | 江苏佳宇传动设备有限公司 | Telescopic rail component and elevator stage |
| CN210795683U (en) * | 2019-08-24 | 2020-06-19 | 浙江安华保洁服务有限公司 | Rotary simple lifting clean-keeping workbench |
| CN210635646U (en) * | 2019-10-25 | 2020-05-29 | 广东科凯达智能机器人有限公司 | Telescopic device |
| CN110844824A (en) * | 2019-11-15 | 2020-02-28 | 合肥森印科技有限公司 | N-stage electric telescopic device with large telescopic ratio and application thereof |
| CN216456833U (en) * | 2021-11-30 | 2022-05-10 | 北京体育大学 | Telescopic part and sign awl of constituteing thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115241797A (en) * | 2022-08-24 | 2022-10-25 | 张海滨 | Electric power maintenance is with multi-functional maintenance support |
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Application publication date: 20210824 |
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