CN207223838U - A kind of steel turn-buckle knife - Google Patents
A kind of steel turn-buckle knife Download PDFInfo
- Publication number
- CN207223838U CN207223838U CN201721278766.1U CN201721278766U CN207223838U CN 207223838 U CN207223838 U CN 207223838U CN 201721278766 U CN201721278766 U CN 201721278766U CN 207223838 U CN207223838 U CN 207223838U
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- CN
- China
- Prior art keywords
- telescopic handle
- accommodating chamber
- atretic body
- locking
- connecting rod
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 26
- 230000008602 contraction Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000008094 contradictory effect Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000003754 machining Methods 0.000 abstract description 3
- 230000009471 action Effects 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007514 turning Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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- Scissors And Nippers (AREA)
Abstract
The steel turn-buckle knife of the utility model, first, Telescopic handle uses shaft hole matching mode with connecting rod accommodating chamber, in actual production processing, circular shaft and circular hole high precision machining, coordinate installation precision far above six-edged axis and the fit precision of hexagon ring, it is ensured that Telescopic handle or turns the axial precision of termination after installation；Secondly, by setting the first atretic body, which longitudinally plugs under the action of sliding sleeve part and contacts in locking sliding slot, realizes the transmission for circumferentially rotating torque, and the moment of torsion of connecting rod is transferred to Telescopic handle；Meanwhile the cooperation of second atretic body and locking recess, the fixation to Telescopic handle in telescopic direction is also achieved, realizes the fixation of Telescopic handle.
Description
Technical field
The utility model belongs to mechanical dismantling device technical field, and in particular to a kind of retractable screwdriver.
Background technology
Screwdriver be industry and life in indispensable instrument, no matter overhaul of the equipments specialty or daily life in,
It all can use screwdriver.It is different due to the use of operating mode, therefore the telescopic screwdriver tool of driver bit need to be used.
Although also there is retractable screwdriver instrument currently on the market, screwdriver rod is movably installed in handle of a knife, and elasticity is stretched
Go out fixed or overcome elastic force storage to fix, but existing retractable screwdriver has following deficiency：
Since screwdriver rod and handle of a knife need to form prismatic pair, and operation torque need to be provided：(1) when screwdriver rod for circle,
Round screwdriver rod will realize that with that need to process two ribs for being more than diameter in round bar afterbody to rotation (be mostly that punching press adds
Work) ear is commonly called as, the straight trough of two ears under accommodating is needed in the hole in handle of a knife, this kind of straight trough occupied space is big, causes
Handle of a knife volume is excessive and intensity is relatively low；(2) when screwdriver rod is hexangle type, the screwdriver rod of hexagonal pass need to be with hexagonal in handle of a knife
Hole coordinates, and due to the processing technology difficulty and machining accuracy problem of hexagonal type hole, this kind of structure can not accomplish closely complete all the time
U.S. coordinates, and always produces and rocks because of gap.
The content of the invention
The utility model aims to provide a kind of steel turn-buckle knife, and to solve, existing retractable screwdriver fit precision is poor, connects
Connect the problem of intensity is low.
Concrete scheme is as follows：A kind of steel turn-buckle knife, including：Connecting rod, the connecting rod have one to extend along rotation axis
And there is radially break-through to pacify to the first installation through-hole of accommodating chamber and second for the accommodating chamber that side is opened wide, the accommodating chamber
Fill through hole；Telescopic handle, the Telescopic handle one end have one to turn termination, and the other end loads the accommodating chamber and can live in the accommodating chamber
It is dynamic, to load different depth；First atretic body and the second atretic body, first atretic body and the second atretic body respectively can activities
Ground is arranged in first installation through-hole and the second installation through-hole；Sliding sleeve part, the sliding sleeve part movable can be installed in the connecting rod,
With first atretic body and the second atretic body is contacted at, make to be embedded into both it in accommodating chamber to contradict the locking of the Telescopic handle
Position, and with first atretic body and the second atretic body is discharged, disengage it from the releasing position of the Telescopic handle；The Telescopic handle
Loading one end of the accommodating chamber has columned positioning section, corresponding, which has the installation being adapted to the positioning section
Hole, the mounting hole and the rotation axis of the connecting rod are coaxially disposed；First installation through-hole is corresponded on the side wall of the Telescopic handle
Position is equipped with the locking sliding slot extended along the Telescopic handle rotation axis direction, and when which is in locked position of coupler, this first is closed
Lock body can be stretched into accommodating chamber and is inserted in the locking sliding slot；It is additionally provided with the side wall of the Telescopic handle and is revolved perpendicular to the Telescopic handle
The locking recess of shaft axis；The locking recess face the second installation through-hole position and when the sliding sleeve part is in locked position of coupler, should
Second locking physical efficiency is stretched into accommodating chamber and is inserted in the locking recess, to realize the fixation of the Telescopic handle.
Further, two groups of locking cards are being provided with front and rearly on the direction that this turns termination, on the Telescopic handle
Groove, it is respectively to protrude out card slot and contraction card slot；Second atretic body is inserted in this and protrudes out card slot or shrink card slot, and then will
Telescopic handle is fixed on extended position or reception position.
Further, which is generally cylindrical cavity, and the main part of the Telescopic handle is the columned positioning
Section, the both ends of the positioning section are connected to the limited location snap ring for turning termination and an anticreep；The locking sliding slot and this close
Locking trough is arranged on the positioning section.
Further, which has multiple, and circumference uniform distribution be arranged on Telescopic handle on；It is corresponding, it is each this first
Atretic body is arranged on the position of the corresponding locking sliding slot in the connecting rod；The section of the locking sliding slot adapts to this and first closes
The conflict end of lock body, the section of the locking recess adapt to the conflict end of second atretic body.
Further, main spring is equipped with the accommodating chamber, which contacts on the Telescopic handle, to be applied to the Telescopic handle
Add an active force for being pushed out the accommodating chamber；A case spring is additionally provided with the connecting rod, which is connected to the cunning
In external member, to apply an active force by releasing position to locked position of coupler to the sliding sleeve part.
Further, which is sheathed in the accommodating chamber of the connecting rod, and corresponded on the inner wall of the sliding sleeve part this
One and second the region of installation through-hole be equipped with a resistance surface, for contradicting first and second atretic body；Acted in the spring
Under, which is arranged on locked position of coupler, and radially contacts at atretic body by the resistance surface and embed it in receiving
In chamber.
Further, inverse on the direction that sliding sleeve part is moved by acting force of the spring, the resistance surface to the connecting rod rotates
The distance of axis is in reduction trend, to form a self-tightening component with the atretic body.
The further technical solution of the utility model is：First atretic body is the first ball, which is cylinder
Groove；Second atretic body is the second ball, which is the cylinder groove around the Telescopic handle rotation axis.
The steel turn-buckle knife of the utility model, first, Telescopic handle use shaft hole matching mode with connecting rod accommodating chamber, in reality
In the production and processing of border, circular shaft and circular hole high precision machining, coordinate installation precision far above the cooperation of six-edged axis and hexagon ring
Precision, it is ensured that Telescopic handle or turn the axial precision of termination after installation；Secondly, by setting the first atretic body, this first
Atretic body is longitudinally plugged under the action of sliding sleeve part and contacted in locking sliding slot, realizes the transmission for circumferentially rotating torque, by even
The moment of torsion of extension bar is transferred to Telescopic handle；Meanwhile the cooperation of second atretic body and locking recess, it is right in telescopic direction to also achieve
The fixation of Telescopic handle, realizes the fixation of Telescopic handle.
Brief description of the drawings
Fig. 1 shows one structure diagram of the utility model embodiment steel turn-buckle knife-like state；
Fig. 2 shows two structure diagram of the utility model embodiment steel turn-buckle knife-like state；
Fig. 3 shows Fig. 2 longitudinal sectional views；
Fig. 4 shows partial enlarged view at the A of Fig. 3；
Fig. 5 shows Fig. 2 transverse sectional views；
Fig. 6 shows partial enlarged view at the B of Fig. 5；
Fig. 7 shows that Fig. 2 removes the partial structural diagram after sliding sleeve part；
Fig. 8 shows Fig. 2 Telescopic handle structure diagrams；
Fig. 9 shows Fig. 2 cross sectional views.
Embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings is in the utility model exposure
A part for appearance, it can coordinate the associated description of specification to explain the running of embodiment original mainly to illustrate embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and this practicality are new
The advantages of type.Component in figure is not necessarily to scale, and similar element numbers are conventionally used to indicate similar component.
The utility model is further illustrated in conjunction with the drawings and specific embodiments.
With reference to shown in Fig. 1 to Fig. 3, this embodiment offers a kind of steel turn-buckle knife, it includes connecting rod 2 and Telescopic handle
1：The connecting rod 2 is cylindric, has a rotation axis, and one is equipped with the connecting rod 2 and is opened wide along rotation axis extension and side
Accommodating chamber 21, the accommodating chamber 21 opening arranged on connecting rod 2 one end；The Telescopic handle 1 deviates from one end installation of connecting rod 2
There is one to turn termination 10, to form a screwdriver rod, the other end loads in the accommodating chamber 21 and can be revolved on edge in the accommodating chamber 21
Shaft axis telescopic movable, to load different depth；The connecting rod 2, which deviates from, to be turned one end of termination 10 and is equipped with a grip sleeve, with
Form a handle of a knife 20.
In conjunction with Fig. 2 to Fig. 5, there is first He of the radially break-through to accommodating chamber 21 on the wall of the accommodating chamber 21
Second installation through-hole, is respectively equipped with the first atretic body 5 and the second atretic body 4 in first and second installation through-hole, in the reality
Apply in example, which is ball, and 5 and second atretic body 4 of the first atretic body is distinguished
It can be arranged on radially movablely in first installation through-hole and the second installation through-hole.
Meanwhile a sliding sleeve part 3 is also arranged with the connecting rod 2, which can live along the rotation axis of connecting rod 2
Dynamic installation set is arranged in the connecting rod 2；3 front end of sliding sleeve part is set for flare openings, so that inner wall at its front opening
The region of upper correspondence first and second installation through-hole is equipped with a resistance surface；A case spring 31 is also arranged with connecting rod 2, should
Case spring 31 is a pressing spring, which is connected on the back-end location of the sliding sleeve part 3, with to the sliding sleeve part 3
Apply one by by the rear thrust to front；Under case spring effect, the resistance surface of the sliding sleeve part 3 contacts at first locking
5 and second atretic body 4 of body, makes to be embedded into both it to contradict the Telescopic handle 1 in accommodating chamber 21, and then the sliding sleeve part 3 is arranged on and closes
Lock position；Overcome the elastic force of the case spring 31, promote the sliding sleeve part 3, so that resistance surface discharges first atretic body 5 and second
Atretic body 4, disengages it from the Telescopic handle 1, and the sliding sleeve part 3 is in releasing position at this time.
As seen from the figure, since the front opening of sliding sleeve part 3 opens shape in horn mouth, acted on inverse in sliding sleeve part 3 by spring
On the direction of power movement, the distance of the resistance surface to 2 rotation axis of connecting rod be in reduction trend, so resistance surface and this first
5 and second atretic body 4 of atretic body cooperatively forms a self-tightening component.
In conjunction with shown in Fig. 2 to Fig. 9：
The Telescopic handle 1 is cylindrical, and it loads the accommodating chamber 21 with columned positioning section；It is corresponding, the accommodating chamber
The position of 21 close openend is provided with the circular hole being adapted to the Telescopic handle, which is mounting hole, which loads should
It can slide in mounting hole and along the installation axially bored line, the mounting hole and the rotation axis of the connecting rod 2 are coaxially disposed, and then are realized
The positioning of axial precision in telescopic process.
Meanwhile the side wall of the Telescopic handle 1 is equipped with locking sliding slot 15, in this embodiment, the locking sliding slot 15 have it is multiple,
Preferably, there are 6, and circumference uniform distribution extends on the wall of Telescopic handle 1, and along the 1 rotation axis direction of Telescopic handle；It is right
Answer, each first atretic body 5 is arranged on the position of the corresponding locking sliding slot 15 in the connecting rod 2；The locking sliding slot
15 section is in covering of the fan or semicircle planar, to adapt to the conflict end of first atretic body 5.
Two locking recesses perpendicular to 1 rotation axis of Telescopic handle are additionally provided with the side wall of the Telescopic handle 1：I.e. away from
This is turned on the direction of termination 10, is provided with two groups of locking recesses on the Telescopic handle 1 front and rearly, it is respectively to protrude out card slot
14A and contraction card slot 14B.It is annular recess that this, which protrudes out card slot 14A and shrinks card slot 14B, and its section adapts to this
The conflict end of second atretic body 4 is set.
The structure working principle is：
When the sliding sleeve part 3 is in locked position of coupler, and the second installation through-hole position of a face in the locking recess
When, which contradicts first atretic body 5 to stretch into accommodating chamber 21 and be inserted in the locking sliding slot 15, realizes axial
Rotate and fix；And contradict second atretic body 4 stretch into accommodating chamber 21 and be inserted in the locking recess protrude out card slot 14A or
Person is shunk in card slot 14B, to realize the fixation of 1 glide direction of Telescopic handle.；Second atretic body 4 is inserted in this and protrudes out card slot
14A shrinks card slot 14B, and then Telescopic handle 1 is fixed on extended position or reception position.
In this embodiment, with reference to Fig. 7 and Fig. 9, which has one, and on turnover direction, arranged on two
Between first atretic body 5, i.e. circumferential misalignment is stretched into locking sliding slot 15 to avoid the second atretic body 4.
Further, to realize the automatic spring of Telescopic handle 1, main spring 11, the main spring 11 are equipped with the accommodating chamber 21
Contact at the Telescopic handle 1 to deviate from the side for turning termination 10, the accommodating chamber 21 is pushed out to apply one to the Telescopic handle 1
Active force；The Telescopic handle 1, which deviates from, to be turned one end of termination 10 and is additionally provided with the limited location snap ring 12 of an anticreep, the limited location snap ring
12 have cut off locking sliding slot 15, to be adapted to the structure to form anti-Telescopic handle 1 and deviate from the first atretic body 5.
Although specifically showing and describing the utility model with reference to preferred embodiment, those skilled in the art should
This is understood, in the spirit and scope for not departing from the utility model that the appended claims are limited, in form and details
On the utility model can be made a variety of changes, be the scope of protection of the utility model.
Claims (8)
1. a kind of steel turn-buckle knife, including：
Connecting rod, the connecting rod have an accommodating chamber opened wide along rotation axis extension and side, which has radially
First installation through-hole and second installation through-hole of the direction break-through to accommodating chamber；
Telescopic handle, the Telescopic handle one end have one to turn termination, and the other end loads the accommodating chamber and can be movable in the accommodating chamber,
To load different depth；
First atretic body and the second atretic body, first atretic body and the second atretic body can actively be arranged on first peace respectively
Fill in through hole and the second installation through-hole；
Sliding sleeve part, the sliding sleeve part movable can be installed in the connecting rod, have and contact at first atretic body and the second locking
Body, makes to be embedded into both it in accommodating chamber to contradict the locked position of coupler of the Telescopic handle, and with discharge first atretic body and
Second atretic body, disengages it from the releasing position of the Telescopic handle；
It is characterized in that：
One end that the Telescopic handle loads the accommodating chamber has columned positioning section, corresponding, which has and the positioning
The mounting hole of section adaptation, the mounting hole and the rotation axis of the connecting rod are coaxially disposed；
The position that first installation through-hole is corresponded on the side wall of the Telescopic handle is equipped with along Telescopic handle rotation axis direction extension
Locking sliding slot, when which is in locked position of coupler, which stretches into accommodating chamber and is inserted in the locking sliding slot
It is interior；
The locking recess perpendicular to the Telescopic handle rotation axis is additionally provided with the side wall of the Telescopic handle；The locking recess face this
Two installation through-hole positions and when the sliding sleeve part is in locked position of coupler, which stretches into accommodating chamber and is inserted in this and close
In locking trough, to realize the fixation of the Telescopic handle.
2. steel turn-buckle knife according to claim 1, it is characterised in that：On the direction that this turns termination, this is stretched
Two groups of locking recesses are provided with contracting handle front and rearly, it is respectively to protrude out card slot and contraction card slot；Second atretic body is inserted
Card slot is protruded out arranged on this or shrinks card slot, and then Telescopic handle is fixed on extended position or reception position.
3. steel turn-buckle knife according to claim 2, it is characterised in that：The accommodating chamber is generally cylindrical cavity, should
The main part of Telescopic handle is the columned positioning section, and the both ends of the positioning section are connected to this and turn termination and an anticreep
Limited location snap ring；The locking sliding slot and the locking recess are arranged on the positioning section.
4. steel turn-buckle knife according to claim 2, it is characterised in that：The locking sliding slot has multiple, and circumference uniform distribution
On Telescopic handle；Corresponding, each first atretic body is arranged on the position of the corresponding locking sliding slot in the connecting rod；
The section of the locking sliding slot adapts to the conflict end of first atretic body, and the section of the locking recess adapts to second atretic body
Conflict end.
5. steel turn-buckle knife according to claim 2, it is characterised in that：Main spring, the main spring are equipped with the accommodating chamber
Contact on the Telescopic handle, to apply an active force for being pushed out the accommodating chamber to the Telescopic handle；It is additionally provided with the connecting rod
One case spring, the case spring are connected on the sliding sleeve part, to apply one by releasing position to locked position of coupler to the sliding sleeve part
Active force.
6. steel turn-buckle knife according to claim 5, it is characterised in that：
The sliding sleeve part is sheathed in the accommodating chamber of the connecting rod, and it is logical that first and second installation is corresponded on the inner wall of the sliding sleeve part
The region in hole is equipped with a resistance surface, for contradicting first and second atretic body；
Under case spring effect, which is arranged on locked position of coupler, and radially contacts at the by the resistance surface
One and/or second atretic body and embed it in accommodating chamber.
7. steel turn-buckle knife according to claim 6, it is characterised in that：Moved inverse in sliding sleeve part by case spring active force
On dynamic direction, the distance of the resistance surface to the connecting rod rotation axis is in reduction trend, with first and/or second locking
Body forms a self-tightening component.
8. according to the steel turn-buckle knife described in claim 1-7 any claims, it is characterised in that：
First atretic body is the first ball, which is cylinder groove；Second atretic body is the second ball, the locking
Card slot is the cylinder groove around the Telescopic handle rotation axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278766.1U CN207223838U (en) | 2017-09-30 | 2017-09-30 | A kind of steel turn-buckle knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721278766.1U CN207223838U (en) | 2017-09-30 | 2017-09-30 | A kind of steel turn-buckle knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207223838U true CN207223838U (en) | 2018-04-13 |
Family
ID=61850078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721278766.1U Active CN207223838U (en) | 2017-09-30 | 2017-09-30 | A kind of steel turn-buckle knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207223838U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994766A (en) * | 2018-09-06 | 2018-12-14 | 厦门南旗佰特精密工具制造有限公司 | A kind of stepless retractable mechanism and stepless collapsible screwdriver |
-
2017
- 2017-09-30 CN CN201721278766.1U patent/CN207223838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108994766A (en) * | 2018-09-06 | 2018-12-14 | 厦门南旗佰特精密工具制造有限公司 | A kind of stepless retractable mechanism and stepless collapsible screwdriver |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A telescopic screw driver Effective date of registration: 20210415 Granted publication date: 20180413 Pledgee: Bank of China Limited Xiamen Tong'an sub branch Pledgor: XIAMEN NANCHBIT PRECISION TOOLS Co.,Ltd. Registration number: Y2021980002661 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231023 Granted publication date: 20180413 Pledgee: Bank of China Limited Xiamen Tong'an sub branch Pledgor: XIAMEN NANCHBIT PRECISION TOOLS Co.,Ltd. Registration number: Y2021980002661 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |