CN107180709B - A kind of back brake insulating telescopic operating stick - Google Patents
A kind of back brake insulating telescopic operating stick Download PDFInfo
- Publication number
- CN107180709B CN107180709B CN201710584183.XA CN201710584183A CN107180709B CN 107180709 B CN107180709 B CN 107180709B CN 201710584183 A CN201710584183 A CN 201710584183A CN 107180709 B CN107180709 B CN 107180709B
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- Prior art keywords
- bar
- elongation
- loop bar
- screw thread
- shaft
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- 230000000903 blocking effect Effects 0.000 claims description 25
- 238000009987 spinning Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
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- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The present invention provides a kind of back brake insulating telescopic operating stick, including operating stick and supporting tool, and the operating stick includes elongation bar, intermediate bar, loop bar, handlebar and gusset；The elongation bar is hollow structure, and the front end of elongation bar is flexibly connected with the end of supporting tool, is equipped with the elongation bar line of rabbet joint on the outer wall of elongation bar in the axial direction, and the tail end inner wall of elongation bar is equipped with the elongation bar internal screw thread that nominal diameter is less than elongation bar inner diameter；The intermediate bar is hollow structure, and the outer wall of intermediate bar is equipped with intermediate bar external screw thread, and the tail end inner wall of intermediate bar is equipped with the intermediate bar internal screw thread that nominal diameter is less than intermediate bar inner diameter；The handlebar is equipped with shaft, and shaft extends to form handle portion to one end, and shaft extends screw rod to the other end；The loop bar is hollow structure, and the tail end of loop bar is flexibly connected with the shaft；The present invention can adjust the length of operating stick at handle and be less prone to phenomenon of spinning when in use.
Description
Technical field
The present invention relates to insulating bar field more particularly to a kind of back brake insulating telescopic operating sticks.
Background technique
Patent document (notification number: CN105047444B) discloses a kind of multi-functional back brake operational instrument, the operational instrument
Handle including hollow structure and the elongation bar that can be moved up and down in the hollow cavity of handle, elongation bar is threaded rod, handle
Top is equipped with rotary type elevating control seat, and controlling among seat has threaded hole, and threaded hole is threadedly engaged with elongation bar, which is logical
Rotation elevating control seat is crossed to realize the flexible of elongation bar.
Although Telescopic may be implemented in above-mentioned document, but there are several drawbacks, firstly, elevating control seat is located at handle
Opposite end, length adjustment must get well and then be operated to hold handle by when use, this, which will lead in use process, passes through
Adjusting for several times can be only achieved suitable length, inconvenient for operation；Secondly as being to be threadedly coupled, it is used for a long time inevitable
It will appear thread looseness, when stirring if necessary to the operational instrument level, the phenomenon that elongation bar is spinned around handle axis easily occur.
Summary of the invention
In view of the above-mentioned problems, the present invention provide it is a kind of can at handle free adjustment length and be not easy the back brake to spin insulation
Scaling operation bar.
The present invention includes operating stick and supporting tool, which is characterized in that the operating stick includes elongation bar, intermediate bar, set
Bar, handlebar and gusset；The elongation bar is hollow structure, and the front end of elongation bar is flexibly connected with the end of supporting tool, stretches
The elongation bar line of rabbet joint is equipped on the outer wall of stock in the axial direction, the tail end inner wall of elongation bar is equipped with nominal diameter and is less than elongation bar
The elongation bar internal screw thread of inner diameter；The intermediate bar is hollow structure, and the outer wall of intermediate bar is equipped with intermediate bar external screw thread, intermediate
Bar external screw thread and the engagement of elongation bar internal screw thread, the tail end inner wall of intermediate bar are equipped with nominal diameter and are less than intermediate bar inner diameter
Intermediate bar internal screw thread；The handlebar is equipped with shaft, and shaft extends to form handle portion to one end, and shaft prolongs to the other end
Screw rod is stretched out, external screw thread and the engagement of intermediate bar internal screw thread on screw rod；The loop bar be hollow structure, the tail end of loop bar with it is described
Shaft is flexibly connected, and prevents shaft from being detached from the tail end of loop bar, but can be in set rod axis rotation, the inner wall of loop bar along axis
Line direction is equipped with the loop bar line of rabbet joint；The one side of the gusset is stuck in the elongation bar line of rabbet joint, and the another side of gusset is stuck in loop bar slot
In seam, gusset can be slided up and down in the elongation bar line of rabbet joint and in the loop bar line of rabbet joint, but can not be detached from elongation bar and loop bar；It is described to stretch
The outer diameter of stock is less than the internal diameter of loop bar.
User when in use, only need to hold loop bar tail end, another hand rotatable handle portion is pushed away in the screw thread of screw rod on the other hand
Under, intermediate bar and elongation bar stretch out go simultaneously, when intermediate bar reaches extreme position, continue rotatable handle portion, elongation bar is again
It can individually stretch out, until the position that reaches capacity；So only can need to freely be adjusted and be stretched by rotatable handle portion using the present invention
Stock is flexible, this structure is the length adjustment of three-stage, and adjustable range is bigger；And only hand need to be held simultaneously with hand when in use
The tail end of shank and loop bar, makes it not relatively rotate, and spinning when can effectively prevent supporting tool level from stirring is existing
As, it is easy to use, it is easy to operate.
It is advanced optimized as of the invention, the front end of the intermediate bar is equipped with intermediate bar blocking portion, intermediate bar blocking portion
For blocking the front end of elongation bar internal screw thread, so that intermediate bar is not fallen off from elongation bar, limited to elongation bar；Similarly, the silk
The front end of bar is equipped with screw rod blocking portion, and screw rod blocking portion is used to block the front end of intermediate bar internal screw thread, makes screw rod will not be from centre
Bar falls off, this is limited also for intermediate bar；After intermediate bar is rotated to extreme position, since the blocking portion of screw rod makes screw rod
It will not relatively rotate with intermediate bar, when rotational handle portion again, screw rod just will drive one piece of intermediate bar rotation, thus single
Solely elongation bar is pushed to stretch out, until elongation bar to the limit.
It is advanced optimized as of the invention, the tail end of the loop bar is flexibly connected with the shaft as socket, set
The tail end of bar covers on shaft；The side wall of the shaft is equipped with shaft groove, sets on the inner wall of the loop bar tail end
There is loop bar groove；Ball or needle roller are equipped between shaft groove and loop bar groove；Ball or needle roller keep rotation more smooth, together
When can also play the role of limit.
It is advanced optimized as of the invention, the equal length of the elongation bar, intermediate bar, screw rod and loop bar；Length phase
When etc. can guarantee that operating stick collapses, length reaches most short.
It is advanced optimized as of the invention, the elongation bar line of rabbet joint is 2, uniformly distributed around stock axle center；The loop bar slot
Seam is 2, uniformly distributed around loop bar axle center；It can guarantee the stability of loop bar and the opposite sliding of elongation bar in this way, while also ensuring muscle
The stress of plate is more evenly.
Detailed description of the invention
Fig. 1 is a kind of back brake insulating telescopic operation lever structure schematic diagram of the present invention；
Fig. 2 is structure shaft enlarged diagram described in Fig. 1；
Fig. 3 is that operating stick described in Fig. 1 stretches out state cross-sectional view；
Fig. 4 is the cross-sectional view of operating stick contraction state shown in Fig. 1；
Fig. 5 is the schematic diagram figure of structural stretch rod structure shown in Fig. 1；
Fig. 6 is elongation bar cross-sectional view shown in Fig. 2；
Fig. 7 is the cross-sectional view of structure loop bar shown in Fig. 1；
Fig. 8 is the cross-sectional view of structure intermediate bar shown in Fig. 1；
Fig. 9 is the end-view of elongation bar two shown in Fig. 2；
Figure 10 is two end-view of structure gusset shown in Fig. 1.
Wherein, appended drawing reference includes:
Supporting tool 1, elongation bar 2, the elongation bar line of rabbet joint 21, elongation bar line of rabbet joint blocking portion 211, elongation bar internal screw thread 22, muscle
Plate 3, gusset blocking portion 31, loop bar 4, the loop bar line of rabbet joint 41, loop bar groove 42, intermediate bar 5, intermediate bar blocking portion 51, outside intermediate bar
Screw thread 52, intermediate bar internal screw thread 53, handlebar 6, screw rod blocking portion 61, screw rod 62, shaft 63, shaft groove 631, handle
Portion 64, ball 7.
Specific embodiment
It elaborates below in conjunction with specific embodiment to the present invention.
As Figure 1-Figure 8, the present invention includes operating stick and supporting tool 1；It is characterized in that, the operating stick includes stretching
Stock 2, intermediate bar 5, loop bar 4, handlebar 6 and gusset 3；The front end of the elongation bar 2 and the end activity of supporting tool 1 connect
It connects, the outer wall of elongation bar 2 is equipped with the elongation bar line of rabbet joint 21 in the axial direction, and it is small that the tail end inner wall of elongation bar 2 is equipped with nominal diameter
In the elongation bar internal screw thread 22 of elongation bar inner diameter；The intermediate bar 5 is hollow structure, during the outer wall of intermediate bar 5 is equipped with
Between bar external screw thread 52, intermediate bar external screw thread 52 and elongation bar internal screw thread 22 engage, and it is straight that the tail end inner wall of intermediate bar 5 is equipped with nominal
Diameter is less than the intermediate bar internal screw thread 53 of 5 inner diameter of intermediate bar；The handlebar 6 is equipped with shaft 63, and 63 one end of shaft is prolonged
Handle portion 64 is stretched out, the other end of shaft 63 extends screw rod 62, and the screw thread and intermediate bar internal screw thread 53 on screw rod 62 engage；
The loop bar 4 is hollow structure, and the tail end of loop bar 4 is flexibly connected with the shaft 63, and shaft 63 cannot be detached from loop bar 4
Tail end, but the loop bar line of rabbet joint 41 can be equipped in the axial direction in the axis rotation of loop bar 4, the inner wall of loop bar 4；The gusset 3
One side is stuck in the elongation bar line of rabbet joint 21, and the another side of gusset 3 is stuck in the loop bar line of rabbet joint 41, and gusset 3 can be in elongation bar slot
It is slided up and down in seam 21 and in the loop bar line of rabbet joint 41, but elongation bar 2 and loop bar 4 can not be detached from；The outer diameter of the elongation bar 2 is less than set
The internal diameter of bar 4 guarantees that elongation bar 2 can retract in loop bar 4.
Preferably, the front end of the intermediate bar 5 is equipped with intermediate bar blocking portion 51, and intermediate bar blocking portion 51 is for blocking elongation
The front end of bar internal screw thread 22 makes intermediate bar 5 not fall off from elongation bar 2, while also limiting to elongation bar 2；The screw rod 62
Front end is equipped with screw rod blocking portion 61, and screw rod blocking portion 61 is used to block the front end of intermediate bar internal screw thread 53, makes screw rod 6 will not be therefrom
Between bar 5 fall off, while to intermediate bar 5 limit.
Preferably, the tail end of the loop bar 4 is socket with being flexibly connected for the shaft 63, and the tail end of loop bar 4 covers
On shaft 63；The side wall of the shaft 63 is equipped with shaft groove 631, and the inner wall of 4 tail end of loop bar is equipped with set
Bar groove 42；Ball 7 or needle roller are equipped between shaft groove 631 and loop bar groove 42.Ball 7 or needle roller make rotation more
Add smoothness, while position-limiting action can also be played.In the present embodiment, shaft groove 631 is set as three circles, and loop bar groove 42 is equally set
For three circles, the contact area for making 4 tail end of loop bar relatively rotate part with shaft 63 is bigger, guarantees 4 He of loop bar in rotation process
The concentricity of handlebar 6 keeps rotating effect more stable.
Preferably, the elongation bar 2, the equal length of intermediate bar 5, screw rod 62 and loop bar 4；Equal length can guarantee operation
When bar can collapse, entire length reaches most short, convenient for collecting.
Preferably, the elongation bar line of rabbet joint 21 is 2, uniformly distributed around the axle center of elongation bar 2；The loop bar line of rabbet joint 41 is 2,
It is uniformly distributed around the axle center of loop bar 4；It can guarantee the stability of loop bar 4 and the opposite sliding of elongation bar 2 in this way, while also guaranteeing gusset 3
Stress more evenly, can be according to specific if it is necessary, the elongation bar line of rabbet joint 21 and the loop bar line of rabbet joint 41 can be even more for 3 or 4
Depending on situation.
Gusset 3 of the present invention can slide up and down in the elongation bar line of rabbet joint 21 and in the loop bar line of rabbet joint 41, but can not be detached from
Elongation bar 2 and loop bar 4, specific implementation as shown in Figure 9, Figure 10, set elongation bar line of rabbet joint blocking part at the both ends of the elongation bar line of rabbet joint 21
211, set two gusset blocking portions 31 backwards on the side wall at 3 both ends of gusset, such elongation bar 2 is when opposite loop bar 4 slides, energy
Gusset blocking portion 31 is driven by elongation bar line of rabbet joint blocking part 211, gusset 3 is enable smoothly to slide with 2 one pieces of elongation bar；If any
A blocking portion can also be arranged in the front end of the loop bar line of rabbet joint 41, for preventing gusset 3 from sliding out from the loop bar line of rabbet joint 41 in necessity
Come.
A specific embodiment of the invention is as follows:
In use, need to only hold the tail end of loop bar 4 on the other hand, another hand rotatable handle portion 64 is pushed away in the screw thread of screw rod 62
Under, intermediate bar 5 can be forward extended out, since intermediate bar external screw thread 52 and elongation bar internal screw thread 22 engage, so intermediate bar 5 can be to
When extension, it will push 2 one pieces of elongation bar stretchings；Gusset 3 is stuck among the elongation bar line of rabbet joint 21 and the loop bar line of rabbet joint 41, prevents from spinning,
So that elongation bar 2 will not rotate during forward extending out with respect to loop bar 4；When intermediate bar 5 reaches extreme position, i.e.,
Screw rod blocking portion 61 resists the front end of intermediate bar internal screw thread 53, prevents screw rod 62 from continuing that intermediate bar 5 is promoted to stretch out, at this moment continues
Rotational handle portion 64 can make screw rod 62 drive 5 one pieces of intermediate bar rotations；The rotation of intermediate bar 5, and centre can be pushed as screw rod 62
The process that bar 5 advances is the same, and elongation bar 2 is pushed to stretch out, since gusset 3 is stuck among the elongation bar line of rabbet joint 21 and the loop bar line of rabbet joint 41,
Equally play the role of preventing from spinning, so that elongation bar 2 will not rotate when stretching out with respect to loop bar 4；When elongation bar 2 reaches
When extreme position, i.e., when intermediate bar blocking portion 51 resists the front end of elongation bar internal screw thread 22, intermediate bar 5 can not then push elongation again
Bar 2, so when in use, as long as holding loop bar 4 it is ensured that supporting tool 1 is not in phenomenon of spinning when level is stirred.
Operating stick retraction is exactly the inverse process of the above process.
It, only need to be by rotatable handle portion 64, it can be achieved that 3 such as above-mentioned principle it is found that this structure is the length adjustment of three-stage
The extension elongation of times screw rod 62 can also use multiple casing layer overlaps, realize more multifibres on concept of the invention
The extension elongation of bar multiple, does not repeat here.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (5)
1. a kind of back brake insulating telescopic operating stick, including operating stick and supporting tool；It is characterized in that, the operating stick includes stretching
Stock, intermediate bar, loop bar, handlebar and gusset；The elongation bar is hollow structure, the front end of elongation bar and the end of supporting tool
End is flexibly connected, and is equipped with the elongation bar line of rabbet joint on the outer wall of elongation bar in the axial direction, and the tail end inner wall of elongation bar is equipped with nominal
Diameter is less than the elongation bar internal screw thread of elongation bar inner diameter；The intermediate bar is hollow structure, during the outer wall of intermediate bar is equipped with
Between bar external screw thread, intermediate bar external screw thread and the engagement of elongation bar internal screw thread, the tail end inner wall of intermediate bar is less than equipped with nominal diameter
The intermediate bar internal screw thread of intermediate bar inner diameter；The handlebar is equipped with shaft, and shaft extends to form handle portion to one end,
Shaft extends screw rod to the other end, external screw thread and the engagement of intermediate bar internal screw thread on screw rod；The loop bar is hollow structure,
The tail end of loop bar is flexibly connected with the shaft, prevents shaft from being detached from the tail end of loop bar, but can around set rod axis rotation,
The loop bar line of rabbet joint is equipped on the inner wall of loop bar in the axial direction；The one side of the gusset is stuck in the elongation bar line of rabbet joint, gusset it is another
One side is stuck in the loop bar line of rabbet joint, and gusset can slide up and down in the elongation bar line of rabbet joint and in the loop bar line of rabbet joint, but can not be detached from and stretch
Stock and loop bar；The outer diameter of the elongation bar is less than the internal diameter of loop bar.
2. a kind of back brake insulating telescopic operating stick according to claim 1, which is characterized in that the front end of the intermediate bar is equipped with
Intermediate bar blocking portion, intermediate bar blocking portion are used to block the front end of elongation bar internal screw thread；The front end of the screw rod is hindered equipped with screw rod
Stopper, screw rod blocking portion are used to block the front end of intermediate bar internal screw thread.
3. a kind of back brake insulating telescopic operating stick according to claim 1 or claim 2, which is characterized in that the tail end of the loop bar with
The flexible connection of the shaft is socket, and the tail end of loop bar covers on shaft；The side wall of the shaft is equipped with shaft
The inner wall of portion's groove, the loop bar tail end is equipped with loop bar groove；Between shaft groove and loop bar groove be equipped with ball or
Needle roller.
4. a kind of back brake insulating telescopic operating stick according to claim 3, which is characterized in that the elongation bar, intermediate bar, silk
The equal length of bar and loop bar.
5. a kind of back brake insulating telescopic operating stick according to claim 1 or claim 2, which is characterized in that the elongation bar line of rabbet joint is 2
Item, it is uniformly distributed around stock axle center；The loop bar line of rabbet joint is 2, uniformly distributed around loop bar axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584183.XA CN107180709B (en) | 2017-07-18 | 2017-07-18 | A kind of back brake insulating telescopic operating stick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710584183.XA CN107180709B (en) | 2017-07-18 | 2017-07-18 | A kind of back brake insulating telescopic operating stick |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107180709A CN107180709A (en) | 2017-09-19 |
| CN107180709B true CN107180709B (en) | 2019-05-31 |
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ID=59837779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710584183.XA Active CN107180709B (en) | 2017-07-18 | 2017-07-18 | A kind of back brake insulating telescopic operating stick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107180709B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584266A (en) * | 2020-06-19 | 2020-08-25 | 国网江苏省电力有限公司常州供电分公司 | Magnetic attraction guide type insulating operating rod |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2435794A2 (en) * | 1978-09-06 | 1980-04-04 | Peugeot | Electrical switch with resilient central rod - has electrode supporting handle and contacting coaxial electrode following lateral displacement of handle |
| CN204216494U (en) * | 2014-11-20 | 2015-03-18 | 国家电网公司 | A kind of novel fixing-line device auxiliary telescopic handle for power construction |
| CN204632604U (en) * | 2015-03-30 | 2015-09-09 | 安徽智瑞电气有限公司 | A kind of Combined brake pull rod |
| CN105448551A (en) * | 2015-12-17 | 2016-03-30 | 上海电器科学研究院 | Telescopic change-over switch operating handle and application thereof |
| CN206059191U (en) * | 2016-08-31 | 2017-03-29 | 福建闽高电力股份有限公司 | A kind of multifunctional operating arm |
-
2017
- 2017-07-18 CN CN201710584183.XA patent/CN107180709B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2435794A2 (en) * | 1978-09-06 | 1980-04-04 | Peugeot | Electrical switch with resilient central rod - has electrode supporting handle and contacting coaxial electrode following lateral displacement of handle |
| CN204216494U (en) * | 2014-11-20 | 2015-03-18 | 国家电网公司 | A kind of novel fixing-line device auxiliary telescopic handle for power construction |
| CN204632604U (en) * | 2015-03-30 | 2015-09-09 | 安徽智瑞电气有限公司 | A kind of Combined brake pull rod |
| CN105448551A (en) * | 2015-12-17 | 2016-03-30 | 上海电器科学研究院 | Telescopic change-over switch operating handle and application thereof |
| CN206059191U (en) * | 2016-08-31 | 2017-03-29 | 福建闽高电力股份有限公司 | A kind of multifunctional operating arm |
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| Publication number | Publication date |
|---|---|
| CN107180709A (en) | 2017-09-19 |
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