CN105927630B - Connecting device of telescopic rod - Google Patents
Connecting device of telescopic rod Download PDFInfo
- Publication number
- CN105927630B CN105927630B CN201610501255.5A CN201610501255A CN105927630B CN 105927630 B CN105927630 B CN 105927630B CN 201610501255 A CN201610501255 A CN 201610501255A CN 105927630 B CN105927630 B CN 105927630B
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- CN
- China
- Prior art keywords
- rod
- locking sleeve
- stage
- pin
- locking
- 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.)
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Links
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram 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
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
- F16B7/10—Telescoping systems
- F16B7/105—Telescoping systems locking in discrete positions, e.g. in extreme extended position
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a connecting device of a telescopic rod, which is used for connecting an upper-stage rod and a lower-stage rod, and comprises the following components: a locking sleeve arranged between the upper level rod and the lower level rod; the inter-rod angle adjusting mechanism is arranged at the connecting part of the upper-stage rod and the lower-stage rod; the locking sleeve comprises an upper end, a middle part and a lower end which are sequentially connected, the upper end of the locking sleeve is connected with the upper rod, the middle part of the locking sleeve is an expansion joint, and the lower end of the locking sleeve is sleeved on the outer side of the connecting part of the upper rod and the lower rod. The invention has simple structure, easy realization and low cost, can provide axial bearing among the rods and prevent the rods from sliding circumferentially, and the angle of the lower rod relative to the upper rod is adjustable.
Description
Technical Field
The invention relates to a connecting device, in particular to a connecting device for a circular tube telescopic rod which needs axial bearing and prevents circumferential sliding among rods.
Background
The telescopic rod is widely applied to various fields in production and life and is generally composed of round rods with multistage pipe diameters approaching to each other and gradually reduced. When the use requirements of the telescopic rods are different, the applicable rod-to-rod connecting devices are different. The conventional memory means presses the lower rod by means of elastic pressure applied thereto by the upper rod or presses the connection means of the elastic rod by means of a buckle. The prior art connecting device is not beneficial to axial bearing between rods, and sliding between rods is easy to occur. In the prior art, a device with a single pin and a spring arranged in a C-shaped groove is adopted, and the telescopic rods cannot slide relatively, but single-point connection is unfavorable for axial stress of the telescopic rods. In addition, in engineering practice, the angle of the lower-stage rod relative to the upper-stage rod is adjustable, and the upper-stage rod and the lower-stage rod need to be circumferentially arranged at any set angle and do not slide, so that the connecting device between the rods in the prior art cannot meet the requirements.
Disclosure of Invention
The invention aims to provide a connecting device of a telescopic rod, which has the advantages of simple structure, easy realization and low cost, can provide axial bearing among rods, prevent circumferential sliding among the rods, and can adjust the angle of a lower rod relative to an upper rod.
In order to achieve the above purpose, the present invention is realized by the following technical scheme: the utility model provides a connecting device of telescopic link for the connection of superior pole and subordinate pole, its characteristics are, this connecting device contains:
a locking sleeve arranged between the upper level rod and the lower level rod;
the inter-rod angle adjusting mechanism is arranged at the connecting part of the upper-stage rod and the lower-stage rod;
the locking sleeve comprises an upper end, a middle part and a lower end which are sequentially connected, the upper end of the locking sleeve is connected with the upper rod, the middle part of the locking sleeve is an expansion joint, and the lower end of the locking sleeve is sleeved on the outer side of the connecting part of the upper rod and the lower rod.
The upper level pole and the lower level pole are hollow round tubes.
The inner diameter of the upper level rod is larger than the outer diameter of the lower level rod.
The upper end of the locking sleeve is provided with an internal thread, and the upper rod is provided with an external thread matched with the internal thread at the upper end of the locking sleeve.
The inter-rod angle adjusting mechanism comprises: the upper rod pin holes are arranged along the circumferential direction of the upper rod and are axially symmetrical;
the pin hole units are arranged on the lower rod, each pin hole unit comprises a plurality of pairs of lower rod pin holes, and the plurality of pairs of lower rod pin holes are arranged along the circumferential direction of the lower rod and are axially symmetrical;
the locking pins sequentially penetrate through the pin holes of the upper level rod and the corresponding pin holes of the lower level rod to fix the upper level rod and the lower level rod.
When the locking sleeve stretches, the lower edge of the lower end part of the locking sleeve is positioned below the pin hole of the upper-stage rod; when the locking sleeve is compressed, the upper edge of the upper end part of the locking sleeve is positioned above the pin hole of the upper-stage rod.
The pin hole units are arranged along the axial direction of the lower rod.
The number of the locking pins is smaller than or equal to the number of the pin holes of the upper-stage rod.
The upper level pole pin hole, the lower level pole pin hole and the locking pin are fan-shaped or trapezoid.
The inter-rod angle adjusting mechanism further comprises a connecting rope, and the connecting rope is sequentially connected with the locking pin in series.
Compared with the prior art, the connecting device of the telescopic rod has the following advantages: the angle adjusting mechanism between the rods is arranged, so that the angle of the lower rod relative to the upper rod is convenient to adjust; the locking sleeve is telescopic, so that stations of the upper-level rod pin hole, the lower-level rod pin hole and the locking pin are conveniently shielded, and the lower ends of the connecting rope and the locking sleeve can prevent the locking pin from loosening and falling; the shapes of the upper-stage rod pin hole, the lower-stage rod pin hole and the locking pin are fan-shaped or trapezoid, so that the locking pin can be effectively prevented from sliding along the radial direction of the upper-stage rod; the invention has simple structure, easy realization, low cost and convenient popularization.
Drawings
FIG. 1 is a schematic view of the whole structure of a connecting device of a telescopic rod according to the present invention;
FIG. 2 is a schematic view of the overall structure of the angle adjusting mechanism between rods according to the present invention;
fig. 3 is a schematic diagram of the correspondence between the pin holes of the upper level rod and the pin holes of the lower level rod.
Detailed Description
The invention will be further described by the following detailed description of a preferred embodiment, taken in conjunction with the accompanying drawings.
As shown in fig. 1, a connecting device of a telescopic rod for connecting an upper pole 100 with a lower pole 200, the connecting device comprising: a locking sleeve 300 disposed between the upper and lower poles 100 and 200; the rod-to-rod angle adjusting mechanism is arranged at the connecting part of the upper rod 100 and the lower rod 200; the locking sleeve 300 comprises an upper end 301, a middle part 302 and a lower end 303 which are sequentially connected, the upper end 301 of the locking sleeve is connected with the upper rod 100, the middle part 302 of the locking sleeve is an expansion joint, and the lower end 303 of the locking sleeve is sleeved on the outer side of the connecting part of the upper rod 100 and the lower rod 200.
In this embodiment, as shown in fig. 2, the upper rod 100 and the lower rod 200 are preferably hollow round tubes; preferably, the inner diameter of the upper pole 100 is greater than the outer diameter of the lower pole 200.
In this embodiment, the upper end 301 of the locking sleeve is provided with an internal thread 3011, and the upper rod 100 is provided with an external thread 101 that is matched with the internal thread 3011 of the upper end of the locking sleeve.
In this embodiment, as shown in fig. 3, the inter-rod angle adjustment mechanism includes: a plurality of pairs of upper rod pin holes 102 provided on the upper rod 100, the plurality of pairs of upper rod pin holes 102 being arranged along a circumferential direction of the upper rod 100, and being axially symmetrical; a plurality of groups of pin hole units arranged on the lower rod 200, each group of pin hole units comprising a plurality of pairs of lower rod pin holes 201, the plurality of pairs of lower rod pin holes 201 being arranged along the circumferential direction of the lower rod 200 and being axially symmetrical; the plurality of locking pins 400 sequentially pass through the upper rod pin holes 102 and the corresponding lower rod pin holes 201 to fix the upper rod 100 and the lower rod 200.
In this embodiment, when the locking sleeve 300 is extended, the lower edge of the lower end 303 of the locking sleeve is located below the upper rod pin hole 102; when the locking sleeve 300 is compressed, the upper edge of the upper end 301 of the locking sleeve is located above the pin hole 102 of the upper rod, so that when the height and angle of the telescopic rod are required to be adjusted, the locking sleeve 300 is compressed, the station of the pin hole 102 of the upper rod is exposed, and when the height and angle of the telescopic rod are adjusted, the locking sleeve 300 is extended, and the station of the pin hole 102 of the upper rod is shielded.
In this embodiment, the plurality of pin hole units are disposed along the axial direction of the lower rod 200, preferably, the pin hole units of each group are spaced by a certain distance, the length of the telescopic rod is adjusted by setting the length of the distance, and the shorter the interval between the pin hole units is, the higher the adjusting precision is.
In the present embodiment, the number of the locking pins 400 is equal to or less than the number of the upper level lever pin holes 102; preferably, the upper lever pin hole 102, the lower lever pin hole 201 and the locking pin 400 are in a fan shape or a trapezoid shape, so that the locking pin 400 can be effectively prevented from sliding along the radial direction of the upper lever 100.
In this embodiment, preferably, the inter-rod angle adjusting mechanism further comprises a connecting rope 500, the connecting rope 500 is serially connected with the locking pin 400 in sequence, the lower end 303 of the locking sleeve and the connecting rope 500 can doubly limit the locking pin 400, and the locking pin 400 can be prevented from loosening and falling. In an alternative embodiment of the invention, the locking pin 400 may be fixed to the locking sleeve 300, of an integrated design.
In this embodiment, if n pairs of upper-stage rod pin holes 102 (lower-stage rod pin holes 201) are provided, the lower-stage rod can be adjusted by 0-360 ° relative to the upper-stage rod, and the adjustment accuracy is 180/n. The greater the number of upper stage lever pin holes 102 (lower stage lever pin holes 201), the more uniform the force is applied to the lock pin 400, the upper stage lever 100, and the lower stage lever 200.
The specific application is as follows: when the telescopic joint is in an extending state at ordinary times and the length of the lower-stage rod is required to be connected or adjusted, the telescopic joint is compressed, so that the pin hole of the upper-stage rod at the lower part of the upper-stage rod is exposed, the lower-stage rod is moved along the axial direction and the circumferential direction of the upper-stage rod to align the pin hole of the upper-stage rod with the pin hole of the lower-stage rod, a locking pin is installed, and the lower part of the locking sleeve is pulled down to cover the pin hole of the upper-stage rod after the adjustment is completed.
While the present invention has been described in detail through the foregoing description of the preferred embodiment, it should be understood that the foregoing description is not to be considered as limiting the invention. Many modifications and substitutions of the present invention will become apparent to those of ordinary skill in the art upon reading the foregoing. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. A connecting device of telescopic link for the connection of superior pole and subordinate pole, characterized in that, this connecting device contains:
a locking sleeve arranged between the upper level rod and the lower level rod;
the inter-rod angle adjusting mechanism is arranged at the connecting part of the upper-stage rod and the lower-stage rod;
the locking sleeve comprises an upper end part, a middle part and a lower end part which are sequentially connected, the upper end part of the locking sleeve is connected with the upper-stage rod, the middle part of the locking sleeve is an expansion joint, and the lower end part of the locking sleeve is sleeved on the outer side of the connecting part of the upper-stage rod and the lower-stage rod;
the inter-rod angle adjusting mechanism comprises: the upper rod pin holes are arranged along the circumferential direction of the upper rod and are axially symmetrical;
the pin hole units are arranged on the lower rod, each pin hole unit comprises a plurality of pairs of lower rod pin holes, and the plurality of pairs of lower rod pin holes are arranged along the circumferential direction of the lower rod and are axially symmetrical;
the locking pins sequentially penetrate through the pin holes of the upper level rod and the corresponding pin holes of the lower level rod to fix the upper level rod and the lower level rod;
when the locking sleeve stretches, the lower edge of the lower end part of the locking sleeve is positioned below the pin hole of the upper-stage rod; when the locking sleeve is compressed, the upper edge of the upper end part of the locking sleeve is positioned above the pin hole of the upper-stage rod.
2. The connecting device of claim 1, wherein the upper and lower rods are hollow round tubes.
3. The connection device of claim 2, wherein the inner diameter of the upper rod is greater than the outer diameter of the lower rod.
4. The connecting device of claim 1, wherein the upper end of the locking sleeve is provided with internal threads, and the upper rod is provided with external threads which are matched with the internal threads of the upper end of the locking sleeve.
5. The connecting device of claim 1, wherein said plurality of sets of pin hole units are disposed along an axial direction of said lower rod.
6. The connection device according to claim 1, wherein the number of the locking pins is equal to or less than the number of the upper level pin holes.
7. The connecting device of claim 1, wherein the upper pole pin hole, the lower pole pin hole and the locking pin are fan-shaped or trapezoidal.
8. The connector of claim 1, wherein said inter-rod angle adjustment mechanism further comprises a connecting cord, said connecting cord being serially connected in turn to said locking pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501255.5A CN105927630B (en) | 2016-06-30 | 2016-06-30 | Connecting device of telescopic rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610501255.5A CN105927630B (en) | 2016-06-30 | 2016-06-30 | Connecting device of telescopic rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927630A CN105927630A (en) | 2016-09-07 |
| CN105927630B true CN105927630B (en) | 2024-04-12 |
Family
ID=56830047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610501255.5A Active CN105927630B (en) | 2016-06-30 | 2016-06-30 | Connecting device of telescopic rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927630B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109442152A (en) * | 2018-12-14 | 2019-03-08 | 四川宏华石油设备有限公司 | A kind of support device |
| CN109854592A (en) * | 2019-04-08 | 2019-06-07 | 东莞市勇迈五金制品有限公司 | A kind of hardware casing connection accessory |
| CN113586436A (en) * | 2021-08-26 | 2021-11-02 | 黄秀芳 | Sectional type piston rod connecting structure of drilling pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112636A (en) * | 1994-04-26 | 1995-11-29 | 温拿国际罗耶特公司 | Security device |
| CN2806927Y (en) * | 2005-06-20 | 2006-08-16 | 李习洪 | Buried gate valve on-off device |
| CN203934774U (en) * | 2014-07-18 | 2014-11-12 | 杭州中艺实业有限公司 | A kind of column rotary locking structure |
| CN104149561A (en) * | 2014-08-21 | 2014-11-19 | 株洲九方装备股份有限公司 | Derrick rig for connecting two vehicle bodies and split cut-through channel |
| CN104390041A (en) * | 2014-11-18 | 2015-03-04 | 广东永泉阀门科技有限公司 | Underground valve connecting device |
| CN104653979A (en) * | 2013-11-20 | 2015-05-27 | 西安派诺信息技术有限公司 | Computer monitor bracket with adjustable height |
| CN204952254U (en) * | 2015-05-29 | 2016-01-13 | 朱德青 | Telescopic link protective sheath |
| CN205244401U (en) * | 2015-12-25 | 2016-05-18 | 江西荣成机械制造有限公司 | Flexible cover of connecting rod |
-
2016
- 2016-06-30 CN CN201610501255.5A patent/CN105927630B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112636A (en) * | 1994-04-26 | 1995-11-29 | 温拿国际罗耶特公司 | Security device |
| CN2806927Y (en) * | 2005-06-20 | 2006-08-16 | 李习洪 | Buried gate valve on-off device |
| CN104653979A (en) * | 2013-11-20 | 2015-05-27 | 西安派诺信息技术有限公司 | Computer monitor bracket with adjustable height |
| CN203934774U (en) * | 2014-07-18 | 2014-11-12 | 杭州中艺实业有限公司 | A kind of column rotary locking structure |
| CN104149561A (en) * | 2014-08-21 | 2014-11-19 | 株洲九方装备股份有限公司 | Derrick rig for connecting two vehicle bodies and split cut-through channel |
| CN104390041A (en) * | 2014-11-18 | 2015-03-04 | 广东永泉阀门科技有限公司 | Underground valve connecting device |
| CN204952254U (en) * | 2015-05-29 | 2016-01-13 | 朱德青 | Telescopic link protective sheath |
| CN205244401U (en) * | 2015-12-25 | 2016-05-18 | 江西荣成机械制造有限公司 | Flexible cover of connecting rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927630A (en) | 2016-09-07 |
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