CN107165911B - Telescopic link and support device - Google Patents
Telescopic link and support device Download PDFInfo
- Publication number
- CN107165911B CN107165911B CN201710588077.9A CN201710588077A CN107165911B CN 107165911 B CN107165911 B CN 107165911B CN 201710588077 A CN201710588077 A CN 201710588077A CN 107165911 B CN107165911 B CN 107165911B
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- telescopic
- pipe
- telescopic pipe
- tube
- middle connecting
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- 230000009286 beneficial effect Effects 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/18—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements
- F16B7/182—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections using screw-thread elements for coaxial connections of two rods or tubes
Abstract
The invention relates to the technical field of telescopic pipes, in particular to a telescopic rod and a supporting device. The technical problem that the connection between the pipelines of the telescopic pipes is not firm in the prior art is solved. Comprises a first telescopic pipe, a second telescopic pipe group and a third telescopic pipe which are connected in sequence. The second telescopic pipe group is in threaded connection with the first telescopic pipe and can be partially accommodated in the first telescopic pipe. The third telescopic pipe is connected with the second telescopic pipe group in a threaded manner and can be partially accommodated in the second telescopic pipe group. The invention solves the technical problem of loose connection between pipelines.
Description
Technical Field
The invention relates to the technical field of telescopic pipes, in particular to a telescopic rod and a supporting device.
Background
The tube locks between the various tubes of the telescopic tube racks (e.g. tripods) currently on the market are usually knob, bayonet and toggle locks. The knob type locking structure is composed of a connecting sleeve, a locking sleeve and one or more plastic locking parts, and the mode seems to be convenient, but many problems can occur when the locking structure is repeatedly used and operated, for example, the plastic parts are clamped in the connecting sleeve, or the locking structure is not quick enough and is troublesome to operate. Bayonet type locking mode (for example spring ball chucking structure) is meetting to vibrate or the striking, thereby the spring buckle of bayonet socket department between the body easily takes place to contract inwards and causes the influence to the camera. The buckle-type locking needs a plastic part to assist in clamping, and the aging of the plastic part enables the buckling force of the buckle to gradually decrease, so that the supporting force of the tripod is decreased, the tripod is unstable, inconvenience is brought to a user, and the service life of the telescopic rod is influenced.
In conclusion, the technical problem that the connection between the pipelines of the telescopic pipes is not firm exists in the prior art.
Disclosure of Invention
The invention aims to provide a telescopic rod and supporting equipment to solve the technical problem that in the prior art, the connection between pipelines of telescopic pipes is not firm.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a telescoping pole, comprising:
the first telescopic pipe, the second telescopic pipe group and the third telescopic pipe are connected in sequence;
the second telescopic pipe group is in threaded connection with the first telescopic pipe and can be partially received in the first telescopic pipe;
the third telescopic pipe is in threaded connection with the second telescopic pipe group and can be partially accommodated in the second telescopic pipe group.
Further, in the present invention,
the second telescopic pipe group comprises a middle connecting pipe, and two ends of the middle connecting pipe are respectively in threaded connection with the first telescopic pipe and the third telescopic pipe;
alternatively, the first and second electrodes may be,
the second telescopic pipe group comprises at least two middle connecting pipes, the two adjacent middle connecting pipes are in threaded connection, the end part of the middle connecting pipe adjacent to the first telescopic pipe is in threaded connection with the first telescopic pipe, and the end part of the middle connecting pipe adjacent to the third telescopic pipe is in threaded connection with the third telescopic pipe.
Further, in the present invention,
the second telescopic pipe group comprises a first middle connecting pipe and a second middle connecting pipe, the first middle connecting pipe is in threaded connection with the second middle connecting pipe, the first middle connecting pipe is close to the end part of the first telescopic pipe and is in threaded connection with the first telescopic pipe, and the second middle connecting pipe is close to the end part of the third telescopic pipe and is in threaded connection with the third telescopic pipe.
Further, in the present invention,
the first telescopic pipe is of a cone frustum structure, the diameter of the first telescopic pipe is gradually reduced along the direction in which the first telescopic pipe points to the first middle connecting pipe, and an internal thread is arranged at one end of the first telescopic pipe, which faces the second telescopic pipe group.
Further, in the case of a liquid crystal display device,
the first middle connecting pipe is of a cone frustum structure, the diameter of the first middle connecting pipe is gradually reduced along the direction of gradually keeping away from the first telescopic pipe, an external thread is arranged at one end, facing the first telescopic pipe, of the first middle connecting pipe, and an internal thread is arranged at one end, facing the second middle connecting pipe, of the first middle connecting pipe.
Further, in the present invention,
the connecting pipe sets up to circular truncated cone structure in the middle of the second to, along keeping away from gradually the direction of first middle connecting pipe, the diameter of connecting pipe diminishes gradually in the middle of the second, and, the orientation of connecting pipe in the middle of the second the one end of first middle connecting pipe is provided with the external screw thread, and the orientation the one end of the flexible pipe of third is provided with the internal thread.
Further, in the present invention,
the free end of the first telescopic pipe is provided with internal threads.
Further, in the present invention,
the free end of the first telescopic pipe is provided with external threads.
Further, in the present invention,
the outer surface of the third telescopic pipe is provided with external threads with the same length as the third telescopic pipe.
A supporting device comprises the telescopic rod.
By combining the technical scheme, the invention has the following beneficial effects:
the invention provides a telescopic rod which comprises a first telescopic pipe, a second telescopic pipe group and a third telescopic pipe which are connected in sequence. The second telescopic tube group is in threaded connection with the first telescopic tube and can be partially accommodated in the first telescopic tube. The third telescopic pipe is in threaded connection with the second telescopic pipe group and can be partially accommodated in the second telescopic pipe group.
When the telescopic rod is used, a mobile phone or other equipment is fixed at the end part of the first telescopic pipe or the third telescopic pipe. When the mobile phone or other equipment needs to be lifted, the overlapping degree of the second telescopic pipe group and the first telescopic pipe thread is adjusted so as to reduce the overlapping length of the second telescopic pipe group and the first telescopic pipe thread; or the overlapping degree of the second telescopic pipe group and the third telescopic pipe thread is adjusted to reduce the overlapping length of the second telescopic pipe group and the third telescopic pipe thread, so that the length of the telescopic rod can be increased integrally to lift the mobile phone or other equipment.
When the mobile phone or other equipment needs to be lowered, the degree of overlapping of the second telescopic pipe group and the first telescopic pipe thread is adjusted so that the length of overlapping of the second telescopic pipe group and the first telescopic pipe thread is increased; or the overlapping degree of the second telescopic pipe group and the third telescopic pipe thread is adjusted to increase the overlapping length of the second telescopic pipe group and the third telescopic pipe thread, so that the length of the telescopic rod is reduced on the whole to reduce the mobile phone or other equipment.
When the telescopic rod needs to be retracted after the shooting task is completed, the second telescopic pipe group is rotatably accommodated in the first telescopic pipe and part of the second telescopic pipe group is ensured to extend out of the first telescopic pipe, the third telescopic pipe group is rotatably accommodated in the second telescopic pipe and part of the third telescopic pipe is ensured to extend out of the second telescopic pipe group, and when the second telescopic pipe group and the third telescopic pipe are both in an accommodating state, the telescopic rod finishes retracting operation.
Because what adopt in this scheme is threaded connection's mode, even first flexible pipe or the flexible pipe of third receive the exogenic action and take place deformation also can't lead to the connection of first flexible pipe and the flexible pipeline of second not hard up to and can not lead to the flexible pipeline of second to be connected with the third pipeline not hard up. Therefore, the technical problem that the existing pipeline is not firm in connection is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of a telescopic rod provided in an embodiment of the present invention.
Icon: 100-a first telescoping tube; 200-a second telescoping tube set; 300-a third extension tube;
210-a first intermediate connecting tube; 220-second intermediate connecting tube.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Examples 1 and 2 are described in detail below with reference to the accompanying drawings:
example 1
The embodiment provides a telescopic rod, please refer to fig. 1, including:
a first telescopic pipe 100, a second telescopic pipe group 200 and a third telescopic pipe 300 which are connected in sequence;
the second telescopic tube group 200 is connected with the first telescopic tube 100 in a threaded manner and can be partially accommodated in the first telescopic tube 100;
the third telescopic tube 300 is screwed to the second telescopic tube and can be partially received in the second telescopic tube group 200.
Since the present invention provides a telescopic rod, comprising a first telescopic tube 100, a second telescopic tube group 200 and a third telescopic tube 300 which are connected in sequence. The second telescoping tube set 200 is threaded with the first telescoping tube 100 and can be partially received within the first telescoping tube 100. The third telescopic tube 300 is screwed to the second telescopic tube group 200 and can be partially received in the second telescopic tube group 200.
In using the telescoping wand described above, a cell phone or other device is secured to the end of the first telescoping tube 100 or the third telescoping tube 300. When the mobile phone or other equipment needs to be lifted, the thread overlapping degree of the second telescopic pipe group 200 and the first telescopic pipe 100 is adjusted so that the thread overlapping length of the second telescopic pipe group 200 and the first telescopic pipe 100 is reduced; or the degree of the thread overlap of the second telescopic tube group 200 and the third telescopic tube 300 is adjusted to reduce the length of the thread overlap of the second telescopic tube group 200 and the third telescopic tube 300, so that the length of the telescopic tube can be increased as a whole to lift the mobile phone or other equipment.
When the mobile phone or other equipment needs to be lowered, the thread overlapping degree of the second telescopic pipe group 200 and the first telescopic pipe 100 is adjusted to increase the thread overlapping length of the second telescopic pipe group 200 and the first telescopic pipe 100; or the degree of the thread overlap of the second telescopic tube set 200 and the third telescopic tube 300 is adjusted to increase the length of the thread overlap of the second telescopic tube set 200 and the third telescopic tube 300, so that the length of the telescopic tube is reduced as a whole to lower the mobile phone or other equipment.
When the telescopic rod needs to be retracted after the shooting task is completed, the second telescopic tube group 200 is rotatably accommodated in the first telescopic tube 100 and a part of the second telescopic tube group 200 is ensured to extend out of the first telescopic tube 100, the third telescopic tube 300 is rotatably accommodated in the second telescopic tube group 200 and a part of the third telescopic tube 300 is ensured to extend out of the second telescopic tube group 200, and when the second telescopic tube group 200 and the third telescopic tube 300 are both in the accommodated state, the telescopic rod finishes the retracting operation.
Because the mode that adopts in this scheme is threaded connection, even first flexible pipe 100 or third flexible pipe 300 receive the exogenic action and take place the connection that leads to first flexible pipe 100 and the flexible pipeline of second not enough of deformation to and can not lead to the flexible pipeline of second and the connection of third pipeline not hard up. Therefore, the technical problem that the existing pipeline is not firm in connection is solved.
In the alternatives of this embodiment, it is preferable that:
the second telescopic tube set 200 includes an intermediate connection tube having both ends threadedly connected to the first telescopic tube 100 and the third telescopic tube 300, respectively. When the second telescopic tube set 200 includes only one intermediate connection tube, the telescopic tubes form a structure in which three tubes are connected in sequence. Specifically, the intermediate connection pipe is preferably connected to the first telescopic pipe 100 in a manner of: the end of the intermediate connection tube facing the first telescopic tube 100 is provided with an external thread and correspondingly the end of the first telescopic tube 100 facing the intermediate connection tube is provided with an internal thread. The connection mode of the intermediate connection pipe and the third extension pipe 300 is preferably as follows: an internal thread is provided at one end of the middle connecting pipe facing the third telescopic pipe 300, and an external thread is provided at one end of the third telescopic pipe 300 facing the middle connecting pipe.
In the alternatives of this embodiment, it is preferable that:
the number of the middle connection pipes of the telescopic rod in this embodiment can be increased according to the actual use requirement, and preferably, the second telescopic pipe set 200 includes at least two middle connection pipes, the two adjacent middle connection pipes are connected by screw threads, and the end of the middle connection pipe adjacent to the first telescopic pipe 100 is connected by screw threads with the first telescopic pipe 100, and the end of the middle connection pipe adjacent to the third telescopic pipe 300 is connected by screw threads with the third telescopic pipe 300. More specifically, the second telescopic tube includes a first intermediate connection tube 210 and a second intermediate connection tube 220, the first intermediate connection tube 210 and the second intermediate connection tube 220 are screw-coupled, and an end of the first intermediate tube adjacent to the first telescopic tube 100 is screw-coupled to the first telescopic tube 100, and an end of the second intermediate connection tube 220 adjacent to the third telescopic tube 300 is screw-coupled to the third telescopic tube 300.
In the alternatives of this embodiment, it is preferable that:
the first extension tube 100 is provided in a truncated cone configuration, and the diameter of the first extension tube 100 gradually decreases in a direction in which the first extension tube 100 is directed toward the third extension tube 300. Use this telescopic link as the cell-phone from rapping bar example, the beneficial effect that the circular truncated cone structure can produce lies in: according to the cantilever beam principle, the handheld position of the first connecting pipe is used as a fulcrum, and the diameter of the cantilever beam is gradually reduced along the direction away from the fulcrum, so that the optimal mechanical combination of the moment and the moment arm can be met. Therefore, the first telescopic tube 100 is preferably provided as a truncated cone structure. From the analysis of assembling, the beneficial effect that the frustum of a cone structure can produce lies in: when the first telescopic pipe 100 and the first middle connecting pipe 210 are assembled, the upper end of the first middle connecting pipe 210 is provided with external threads, the lower end of the first telescopic pipe 100 is provided with internal threads, the first middle connecting pipe 210 extends into the first telescopic pipe 100 from the top, the first middle connecting pipe 210 descends and is screwed into the first telescopic pipe 100 through the threads, and the diameter of the first telescopic pipe 100 is gradually reduced, so that after the threads of the first middle connecting pipe 210 are screwed into a certain degree, the threads cannot be screwed into the first telescopic pipe continuously due to the limiting effect of the caliber, and the thread positioning effect is achieved.
In the alternatives of this embodiment, it is preferable that:
the first intermediate connecting pipe 210 is provided in a truncated cone structure, and the diameter of the first intermediate connecting pipe 210 gradually becomes smaller in a direction gradually away from the first telescopic pipe 100, and an end of the first intermediate connecting pipe 210 facing the first telescopic pipe 100 is provided with an external thread and an end facing the second intermediate connecting pipe 220 is provided with an internal thread.
In the alternatives of this embodiment, it is preferable that:
the second intermediate connection pipe 220 is provided in a truncated cone structure, and the diameter of the second intermediate connection pipe 220 gradually becomes smaller in a direction gradually away from the first intermediate connection pipe 210, and an external thread is provided at one end of the second intermediate connection pipe 220 facing the first intermediate connection pipe 210 and an internal thread is provided at one end facing the third telescopic pipe 300. The first intermediate connection pipe 210 and the second intermediate connection pipe 220 are assembled in a similar manner as described above, and will not be described herein for brevity.
In the alternatives of this embodiment, it is preferable that:
the third telescopic tube 300 is provided in a cylindrical structure, and an outer surface of the third telescopic tube is provided with an external thread having the same length as the third telescopic tube 300. The manner of assembling the third telescopic rod and the second middle connecting rod is similar to that described above, and is not described herein for brevity. In addition, the cylindrical structure with the external thread structure can produce the beneficial effects that: for example, the third telescopic tube 300 is connected to the second middle connection tube 220 of the second telescopic tube set 200, the length of the internal thread at the lower end of the second middle connection tube 220 is fixed, and the third telescopic tube can be freely adjusted to extend into the second middle connection tube 220 and can be fixed at any time, so as to achieve the effect of fine adjustment of the length. Furthermore, the top of the third extension tube 300 is preferably configured as a "bottle mouth" or a "T" shape, that is, the top of the third extension tube 300 is provided with a flange protruding outwards, and the diameter of the flange is larger than the diameter of the body of the third extension tube 300, and the above design scheme can make the flange on the upper portion of the third extension tube 300 abut against the tube wall of the second middle connection tube 220 in the process of assembling the third extension tube 300, so as to prevent the third extension tube 300 from continuing to move downwards, thereby playing an effective limiting role.
In the alternatives of this embodiment, it is preferable that:
the free end of the first telescopic tube 100 is provided with an internal thread or the free end of the first telescopic tube 100 is provided with an external thread. The selection of the internal thread and the external thread can be set according to the specific use environment, and when different fittings are assembled, different thread forms are selected.
In the alternatives of this embodiment, it is preferable that:
the first telescopic tube 100 has a limit structure inside for a limit position of the retracted state of the second telescopic tube group 200, for example, the limit structure is provided as a boss structure, and the inner diameter of the boss structure is smaller than the diameter of the end of the second telescopic tube group 200. The retraction movement is stopped when the end of the second telescoping tube set 200 abuts the boss structure.
In the alternatives of this embodiment, it is preferable that:
first intermediate connection pipe 210 has therein a stopper structure serving as a limit position of the retracted state of second intermediate connection pipe 220, for example, the stopper structure is provided as a boss structure having an inner diameter smaller than that of the end of second intermediate connection pipe 220. The retraction movement is stopped when the end of the second intermediate connection tube 220 abuts against the boss structure.
In the alternatives of this embodiment, it is preferable that:
the second intermediate connecting tube 220 has a stopper structure inside, which serves as a limit position of the retracted state of the third telescopic tube 300, for example, the stopper structure is provided as a boss structure, and the inner diameter of the boss structure is smaller than the diameter of the end of the third telescopic tube 300. The retraction movement is stopped when the end of the third telescopic tube 300 abuts the boss structure.
In the alternatives of this embodiment, it is preferable that:
in the retracted state, the second telescopic tube set 200 is not completely accommodated in the first telescopic tube 100, but partially protruded from the first telescopic tube 100. The third telescopic tube 300 is not completely received in the second telescopic tube set 200, but partially protrudes from the second telescopic tube set 200. Thereby being convenient for the next unfolding operation.
Example 2
The present embodiment provides a support apparatus comprising the telescopic rod of embodiment 1. The support device can be used for a mobile phone selfie stick, a camera tripod and the like, and all the advantages of the embodiment 1 can be achieved by the support device in the embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A telescopic pole, characterized in that, includes:
a first telescopic pipe (100), a second telescopic pipe group (200) and a third telescopic pipe (300) which are connected in sequence;
the second telescopic pipe group (200) is in threaded connection with the first telescopic pipe (100) and can be partially received in the first telescopic pipe (100), and the second telescopic pipe group (200) is ensured to partially extend out of the first telescopic pipe (100);
the third telescopic pipe (300) is in threaded connection with the second telescopic pipe group (200) and can be partially received in the second telescopic pipe group (200), and the third telescopic pipe (300) is ensured to partially extend out of the second telescopic pipe group (200);
the diameter of the first telescopic tube (100) is gradually reduced along the direction that the first telescopic tube (100) points to the third telescopic tube (300).
2. The telescopic rod according to claim 1,
the second telescopic pipe group (200) comprises a middle connecting pipe, and two ends of the middle connecting pipe are respectively in threaded connection with the first telescopic pipe (100) and the third telescopic pipe (300);
alternatively, the first and second electrodes may be,
the second telescopic tube group (200) comprises at least two intermediate connecting tubes, the two adjacent intermediate connecting tubes are in threaded connection, the end part of the intermediate connecting tube adjacent to the first telescopic tube (100) is in threaded connection with the first telescopic tube (100), and the end part of the intermediate connecting tube adjacent to the third telescopic tube (300) is in threaded connection with the third telescopic tube (300).
3. The telescopic rod according to claim 2,
the second telescopic pipe set (200) comprises a first middle connecting pipe (210) and a second middle connecting pipe (220), the first middle connecting pipe (210) is in threaded connection with the second middle connecting pipe (220), the end part of the first telescopic pipe (100) close to the first middle connecting pipe (210) is in threaded connection with the first telescopic pipe (100), and the end part of the third telescopic pipe (300) close to the second middle connecting pipe (220) is in threaded connection with the third telescopic pipe (300).
4. A telescopic rod according to claim 3,
the first telescopic pipe (100) is in a cone frustum structure, the diameter of the first telescopic pipe (100) is gradually reduced along the direction of the first telescopic pipe (100) pointing to the first middle connecting pipe (210), and one end, facing the second telescopic pipe group (200), of the first telescopic pipe (100) is provided with an internal thread.
5. The telescoping pole of claim 4,
the first middle connecting pipe (210) is of a cone frustum structure, the diameter of the first middle connecting pipe (210) is gradually reduced along the direction away from the first telescopic pipe (100), an external thread is arranged at one end, facing the first telescopic pipe (100), of the first middle connecting pipe (210), and an internal thread is arranged at one end, facing the second middle connecting pipe (220), of the first middle connecting pipe.
6. A telescopic rod according to claim 5,
the second middle connecting pipe (220) is arranged to be of a cone frustum structure, the diameter of the second middle connecting pipe (220) is gradually reduced along the direction away from the first middle connecting pipe (210), an external thread is arranged at one end, facing the first middle connecting pipe (210), of the second middle connecting pipe (220), and an internal thread is arranged at one end, facing the third telescopic pipe (300).
7. The telescopic rod according to claim 1, wherein:
the free end of the first telescopic pipe (100) is provided with internal threads.
8. The telescoping pole of claim 1, wherein:
the free end of the first telescopic pipe (100) is provided with external threads.
9. The telescoping pole of claim 1, wherein:
the outer surface of the third telescopic pipe (300) is provided with an external thread with the same length as that of the third telescopic pipe (300).
10. A support device comprising a telescopic pole according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588077.9A CN107165911B (en) | 2017-07-18 | 2017-07-18 | Telescopic link and support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710588077.9A CN107165911B (en) | 2017-07-18 | 2017-07-18 | Telescopic link and support device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107165911A CN107165911A (en) | 2017-09-15 |
| CN107165911B true CN107165911B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710588077.9A Active CN107165911B (en) | 2017-07-18 | 2017-07-18 | Telescopic link and support device |
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| CN (1) | CN107165911B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5568784U (en) * | 1978-11-04 | 1980-05-12 | ||
| JPS55173794U (en) * | 1979-05-30 | 1980-12-12 | ||
| US4410204A (en) * | 1981-07-06 | 1983-10-18 | Dril-Quip, Inc. | Connector |
| CN2809309Y (en) * | 2005-02-22 | 2006-08-23 | 朱均琦 | Spiral telescopic pole and spiral telescopic device composed thereby |
| FR3034822B1 (en) * | 2015-04-10 | 2017-10-13 | Anais France | BAR FORMED OF A PLURALITY OF STRINGS FOR THE AMENACEMENT OF PUBLIC AND / OR PRIVATE SPACES, PARTICULARLY IN THE FIELD OF SPORTS |
| CN206904000U (en) * | 2017-07-18 | 2018-01-19 | 茅溱丰 | Expansion link and support equipment |
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2017
- 2017-07-18 CN CN201710588077.9A patent/CN107165911B/en active Active
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