CN208744677U - A kind of stepless retractable mechanism and stepless collapsible screwdriver - Google Patents
A kind of stepless retractable mechanism and stepless collapsible screwdriver Download PDFInfo
- Publication number
- CN208744677U CN208744677U CN201821452395.9U CN201821452395U CN208744677U CN 208744677 U CN208744677 U CN 208744677U CN 201821452395 U CN201821452395 U CN 201821452395U CN 208744677 U CN208744677 U CN 208744677U
- Authority
- CN
- China
- Prior art keywords
- self
- connection handle
- locking body
- connecting rod
- 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.)
- Active
Links
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 16
- 238000009827 uniform distribution Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to stepless retractable mechanism and stepless collapsible screwdrivers, firstly, by accommodating chamber is arranged in connecting rod, by connection handle loaded in the accommodating chamber, a telescoping mechanism is formed with adaptation, connection handle is packed into different depth in accommodating chamber, overall length adjustment can be realized；Secondly, pass through setting self-locking body and self-locking body, self-locking body is set between self-locking body and connection handle, inclined resistance surface is set on self-locking body, and then it is drawable to realize one direction, simultaneously, inverse to detach direction, connection handle frictional force drives self-locking body, contacts at inclination and narrowed resistance surface, realization is reverse self-locking, to provide unidirectional locking effect power.
Description
Technical field
The utility model belongs to fastening structure technical field, and in particular to a kind of fastening structure of stepless retractable mechanism, also
It is related to a kind of stepless collapsible screwdriver.
Background technique
Screwdriver is widely used in machinery, electric power, electronics, automobile, glasses, clock and watch and family DYI etc. various industries, and plants
Class is numerous, function, length, different sizes.
Functionally the combined screwdriver of quick-change driver bit is current industry and city due to its ease of use
The more popular kind in field.
Driver bit used in various groups of sets of interchangeable driver bit is divided into two kinds substantially at present, and one is hexagonals
Shape, basic specification are 1/4 inch of opposite side, i.e. 6.35mm/5mm/4mm/3mm；Another kind is round bar type, specification
Predominantly 6/ Ф of Ф, 5/ Ф, 4/ Ф 3 etc.；It must be adaptable hexagon ring on the corresponding fast exchange apparatus of hexangle type driver bit,
Just asking of falling can be skidded off out of hexagon ring with to rotation, only to solve hex(agonal)screw cutter head in screwdriver use process
Topic, thus can be punched on hexagonal hole wall in this Quick-changing device fill a steel ball and with spring collar from outside by steel ball pressure
Hexagonal screwdriver it is outer face the wall and meditate on, or the bottom of hexagon ring be mounted directly magnet absorption hex(agonal)screw cutter head, to prevent
Driver bit is fallen in use.
In addition, screwdriver is in many scenes in use, in addition to driver bit specification according to demand is actually carried and used
Replacement demand outside, also there is requirement to screwdriver length.
Existing retractable screwdriver is primarily present the following two kinds type due to can not be compatible with cutter head replacing structure:
(1) the non-exchange formula of driver bit need to be equipped with more screwdriver, carrying as inconvenience in use；(2) driver bit can
Formula is changed, i.e., in handle built-in flexible bar, cutter head interchange structure is then set on telescopic rod, screw is replaced by cutter head interchange structure
Cutter head；It opens up multiple card slots by what is be spaced on telescopic rod, realizes that different grades of tensile elongation is adjusted, degree of regulation model
Enclose relatively narrow, use scope is limited.
Therefore, it is badly in need of providing a kind of mechanism of energy stepless retractable, to solve steel turn-buckle knife, length range adjustment is limited
Problem.
Summary of the invention
The utility model is intended to provide a kind of stepless retractable mechanism, to solve existing screwdriver Quick Release bindiny mechanism precision
Problem low, connectivity robustness is poor.
Concrete scheme is as follows: a kind of stepless retractable mechanism, comprising:
Connecting rod and connection handle, the connecting rod have one along rotation axis extend and the open accommodating chamber in side, with
In being packed by open side and receive the connection handle；
It further include self-locking body and self-locking body, which is set in the connecting rod, which is actively set to this
Between self-locking body and the connection handle；The self-locking body has a resistance surface for being used to contradict the self-locking body；Along the connecting rod side
Axial, the distance of the resistance surface to the connecting rod rotation axis is in reduction trend, to cooperatively form with the connection handle and self-locking body
One axial self-locking component.
Further, by the open side of accommodating chamber to accommodating chamber internal direction, the resistance surface to the connecting rod rotation axis
Distance be in reduction trend, with realize connection handle be packed into accommodate cavity direction it is self-locking.
The further technical solution of the utility model are as follows: there is radially perforative installation on the wall surface of the accommodating chamber
Through-hole；The self-locking body be set to the installation through-hole in, and can in the installation through-hole activity close to or far from the connection handle；
The self-locking body is a movable sliding sleeve part being installed in the connecting rod of energy, this, which has, contacts at the self-locking body, makes
It is embedded into the locked position of coupler that the connection handle is contradicted in accommodating chamber, and has and discharge the self-locking body, disengages it from the connection
The releasing position of handle.
The further technical solution of the utility model are as follows: the self-locking body is ball, which is sheathed in the connecting rod,
And one end of the sliding sleeve part is the opening portion of flared, and then the resistance surface is formed on the inner wall of the opening portion.
The further technical solution of the utility model are as follows: further include a spring, which is set in the connecting rod, and to this
Sliding sleeve part applies an active force for keeping it mobile towards locked position of coupler by releasing position；
On the inverse direction in sliding sleeve part by acting force of the spring movement, the distance of the resistance surface to the connecting rod rotation axis
In reduction trend.
The further technical solution of the utility model are as follows: the connecting rod includes a main part and a dismounting portion, the dismounting
Portion is installed on one end of the main part；One end that the dismounting portion deviates from the main part is equipped with locating part, which is set to
In the dismounting portion；And the sliding sleeve part is sheathed in the dismounting portion by the side close to the main part, and can contact at the locating part；
The spring is set between the main part and the sliding sleeve part, to contact at the sliding sleeve part.
The further technical solution of the utility model are as follows: the connection handle has columned positioning section, which has
The rotation axis of the mounting hole being adapted to the positioning section, the mounting hole and the connecting rod is coaxially disposed；The connection handle is packed into the appearance
Receive intracavitary, which is packed into the mounting hole to cooperate with the mounting hole, realizes the positioning of the connection handle axial direction precision；
The position that the installation through-hole is corresponded on the connection handle is additionally provided with locking groove, should be certainly when sliding sleeve part is in locked position of coupler
Lock body can be protruded into accommodating chamber and is inserted in the locking groove, to realize that the connection handle is rotationally fixed with respect to the connecting rod.
The further technical solution of the utility model are as follows: the locking groove is on the connection handle lateral surface and substantially along this
The locking sliding slot that connection handle rotation axis direction extends, the section of the locking sliding slot adapt to the conflict end setting of the self-locking body.
The further technical solution of the utility model are as follows: the locking sliding slot have it is multiple, and circumference uniform distribution be set to connection handle
On；Corresponding, each self-locking body is set to the position of the corresponding locking sliding slot in the connecting rod.
The utility model additionally provides a kind of stepless collapsible screwdriver, including above-mentioned stepless retractable mechanism；
One end of the connection handle forms one and turns end, to constitute a driver bit；It is formed on the other hand on the connecting rod outer wall
Portion is held, to constitute a screwdriver handle；
The driver bit can turn outside end towards screwdriver handle along the connecting rod actively loaded in the screwdriver handle
Side, the distance of the resistance surface to the connecting rod rotation axis are in reduction trend, to provide unidirectional branch by the axial self-locking component
Holding force.
Further, the rear and front end of the driver bit be respectively formed specification it is different turn end.
The stepless retractable mechanism and stepless collapsible screwdriver of the utility model, firstly, being accommodated being arranged in connecting rod
Chamber forms a telescoping mechanism by connection handle loaded in the accommodating chamber with adaptation, connection handle is packed into different depth in accommodating chamber, i.e.,
Overall length adjustment can be achieved；Secondly, by setting self-locking body and self-locking body, by self-locking body be set to self-locking body and connection handle it
Between, inclined resistance surface is set on self-locking body, and then it is drawable to realize one direction, meanwhile, inverse to detach direction, connection handle rubs
It wipes power and drives self-locking body, contact at inclination and narrowed resistance surface, realization is reverse self-locking, to provide unidirectional locking effect
Power.
In further technical solution, using self-locking body as sliding sleeve part, push the sliding sleeve part that self-locking state can be realized
Releasing；Meanwhile the sliding sleeve part contradicts always under the elastic force effect of a spring and compresses self-locking body, rubs to direction application one is detached
Resistance is wiped, undesirably falling off for connection handle is avoided.
Meanwhile the self-locking structure of the utility model is also set up axially extending in the position of corresponding self-locking body on connection handle
Sliding slot, self-locking body are convexly equipped in sliding slot, moreover it is possible to realize the transmitting of rotation direction torque, structure is simple, that is, and axial restraint is realized,
It realizes again circumferentially fixed；Simultaneously, moreover it is possible to the simple replacement applied to cutter head.
Detailed description of the invention
Fig. 1 shows one stepless collapsible screwdriver structure schematic diagram of the utility model embodiment；
Fig. 2 shows Fig. 1 partial lengthwise sectional views；
Fig. 3 shows partial enlarged view at the A of Fig. 2；
Fig. 4 shows Fig. 1 transverse cross-sectional view；
Fig. 5 shows the structural schematic diagram of dismounting portion installation ball；
Fig. 6 shows the structural schematic diagram of dismounting portion installation sliding sleeve part.
Specific embodiment
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
In conjunction with shown in Fig. 1 to Fig. 4, this embodiment offers a kind of stepless collapsible screws with stepless retractable mechanism
Knife comprising driver bit 1 and screwdriver handle 20, the rear and front end of the driver bit 1 are respectively formed that specification is different to be turned
End, it is preferred that it is respectively that cross turns end and a word turns end；The driver bit 1 is actively to be loaded on to be somebody's turn to do
In screwdriver handle 20, and setting can be shunk.
Specifically, the screwdriver handle 20 is used as connecting rod, which is used as connection handle, the connecting rod, i.e. screwdriver
Handle 20 has one along rotation axis extension and the open accommodating chamber 201 in side, for being packed by open side and receiving the company
Connect handle, i.e. driver bit 1.
It further include self-locking body and self-locking body on the screwdriver handle 20, which is set in the connecting rod, the self-locking body
It can actively be set between the self-locking body and the connection handle；The self-locking body has a resistance surface for being used to contradict the self-locking body；Edge
The axial direction of the connecting rod side, the distance of the resistance surface to the connecting rod rotation axis are in reduction trend, with the connection handle and
Self-locking body cooperatively forms an axial self-locking component.
Wherein, in the embodiment, the specific structure of the self-locking body and self-locking body are as follows:
The self-locking body is ball 4, has radially perforative installation through-hole on the wall surface of 201 open side of accommodating chamber
24；The self-locking body, i.e. ball 4 are set in the installation through-hole 24, and upper and lower two sides can protrude out the wall surface of accommodating chamber 201, and energy
Activity (the rolling and mobile) in the installation through-hole, close to or far from the connection handle, i.e. driver bit 1；
The self-locking body is arranged for one and movable can be installed on the connecting rod, i.e. sliding sleeve part 3 on screwdriver handle 20, the cunning
External member 3 in the connecting rod slidably, and then have contact at the ball 4, be embedded into it in accommodating chamber 201 to contradict the spiral shell
The locked position of coupler of silk cutter head 1, and have and discharge the self-locking body, disengage it from the releasing position of the driver bit 1；
Wherein, which is sheathed on the connecting rod, i.e., on screwdriver handle 20, and one end of the sliding sleeve part 3 is flared
Opening portion, and then on the inner wall of the opening portion formed an inclined resistance surface 34.
By the open side of accommodating chamber 201 to accommodating chamber internal direction, the resistance surface 34 to the connecting rod, i.e. screwdriver handle 20
The distance of rotation axis is in reduction trend, to realize connection handle, i.e. driver bit 1, on being packed into 201 direction of accommodating chamber, and screw
1 skin-friction force of cutter head drives shifting and roll rotational in ball 4, since the inclination of resistance surface 34 narrows, 4 sports limiting of ball,
It realizes self-locking to the loading of driver bit 1.
I.e. along 20 axis of screwdriver handle towards the side for turning end outside screwdriver handle 20, the conflict of the sliding sleeve part 3
The distance of face 34 to 20 rotation axis of screwdriver handle is in reduction trend, to provide unidirectional holding power by the axial self-locking component,
For turning the process of screw, conflict clamping force is provided.
It further include a spring 31, in this embodiment, which is pressing spring, the spring 31 to realize automatic locking
It is sheathed on the connecting rod, i.e., on screwdriver handle 20, and applying one to the sliding sleeve part 3 moves it towards locked position of coupler by releasing position
Dynamic active force applies an active force towards the opening side direction of accommodating chamber 201；And then realize it is inverse in sliding sleeve part 3 by
On the mobile direction of acting force of the spring, the distance of the resistance surface 34 to connecting rod (the i.e. screwdriver handle 20) rotation axis is in reduction
Trend, to realize the compression ball 4 of elasticity in real time；Meanwhile in the extraction direction, ball 4 can be with elastic force
To realize most simplified installation, which screws togather including a main part and one and is installed on the main part
Dismounting portion 21, which is installed on one end of the main part, is set to the accommodating chamber 201 and is open side position；The dismounting portion
21 deviate from one end diameter convex of the main part and then form a locating part 210, which is set to the dismounting portion 21
On；And the sliding sleeve part 3 is sheathed in the dismounting portion 21 by the side close to the main part, and can contact at the locating part, then
The other end in the dismounting portion 21 sets screw thread 211 and is installed on main part with screwing togather；The spring 31 is set to the main part and the sliding sleeve
Between part 3, elastic acting force is applied to it to contact at the sliding sleeve part 3；This kind of structure simplifies the most, screws togather knot by one
The installation of structure, i.e. realization all parts is fixed.
Meanwhile to realize that high-precision is assembled, the connection handle, i.e. driver bit 1 have columned positioning section, it is preferred that
Its main part is cylindrical bar, then has the mounting hole being adapted to the positioning section, the mounting hole and the company in the accommodating chamber 201
The rotation axis of extension bar is coaxially disposed；The driver bit 1 is packed into the accommodating chamber 201, the positioning section be packed into the mounting hole with
Cooperate with the mounting hole, realizes the positioning of the axial precision of the driver bit 1；
For the transmitting for realizing axial torque, the position that the installation through-hole 24 is corresponded on the driver bit 1 is additionally provided with locking groove
10, which is preferably the groove extended along the length direction of driver bit 1, should when sliding sleeve part 3 is in locked position of coupler
Self-locking body, i.e. ball 4 can be protruded into accommodating chamber 201 and be inserted in the locking groove 10, to realize the connection handle with respect to the connection
Bar rotationally fixes.
In this embodiment, which has six, for set on the connection handle, i.e., on 1 lateral surface of driver bit and
The locking sliding slot substantially extended along the 1 rotation axis length direction of driver bit, the section of the locking sliding slot is semicircle, with suitable
Conflict end setting assigned in the self-locking body ball 4, and ball 4 is enable to slide on the locking sliding slot.
Still more preferably, which has multiple, and circumference uniform distribution be set to driver bit 1 on；It is corresponding, often
One self-locking body, i.e. ball 4 are set to the position of the corresponding locking sliding slot on the screwdriver handle 20.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (10)
1. a kind of stepless retractable mechanism, comprising:
Connecting rod and connection handle, the connecting rod have one along rotation axis extend and the open accommodating chamber in side, with for by
Open side is packed into and receives the connection handle；
It is characterized by also including self-locking body and self-locking body, which is set in the connecting rod, and the self-locking physical efficiency is actively
Between the self-locking body and the connection handle；
The self-locking body has a resistance surface for being used to contradict the self-locking body；Axial direction along the connecting rod side, the resistance surface extremely should
The distance of connecting rod rotation axis is in reduction trend, to cooperatively form an axial self-locking component with the connection handle and self-locking body.
2. stepless retractable mechanism according to claim 1, it is characterised in that: inside the open side to accommodating chamber of accommodating chamber
Direction, the distance of the resistance surface to the connecting rod rotation axis are in reduction trend, accommodate cavity direction certainly to realize that connection handle is packed into
Lock.
3. stepless retractable mechanism according to claim 1, it is characterised in that:
There is radially perforative installation through-hole on the wall surface of the accommodating chamber；The self-locking body is set in the installation through-hole, and
Can in the installation through-hole activity close to or far from the connection handle；
The self-locking body is a movable sliding sleeve part being installed in the connecting rod of energy, this, which has, contacts at the self-locking body, keeps its embedding
Enter into accommodating chamber to contradict the locked position of coupler of the connection handle, and have and discharge the self-locking body, disengages it from the connection handle
Releasing position.
4. stepless retractable mechanism according to claim 3, it is characterised in that:
The self-locking body is ball, which is sheathed in the connecting rod, and one end of the sliding sleeve part is the opening portion of flared,
And then the resistance surface is formed on the inner wall of the opening portion.
5. stepless retractable mechanism according to claim 3, it is characterised in that:
It further include a spring, which is set in the connecting rod, and applying one to the sliding sleeve part closes it by releasing position direction
The mobile active force of lock position；
On the inverse direction in sliding sleeve part by acting force of the spring movement, the distance of the resistance surface to the connecting rod rotation axis is in subtract
Small trend.
6. stepless retractable mechanism according to claim 5, it is characterised in that: the connecting rod includes that a main part and one tear open
Dress portion, the dismounting portion are installed on one end of the main part；One end that the dismounting portion deviates from the main part is equipped with locating part, the peace
Through-hole is filled to be set in the dismounting portion；And the sliding sleeve part is sheathed in the dismounting portion by the side close to the main part, and can be contradicted
In the locating part；The spring is set between the main part and the sliding sleeve part, to contact at the sliding sleeve part.
7. stepless retractable mechanism according to claim 3, it is characterised in that:
The connection handle has a columned positioning section, which has the mounting hole that be adapted to the positioning section, the mounting hole and
The rotation axis of the connecting rod is coaxially disposed；The connection handle is packed into the accommodating chamber, the positioning section be packed into the mounting hole with
Mounting hole cooperation, realizes the positioning of the connection handle axial direction precision；
The position that the installation through-hole is corresponded on the connection handle is additionally provided with locking groove, when sliding sleeve part is in locked position of coupler, the self-locking body
It can protrude into accommodating chamber and be inserted in the locking groove, to realize that the connection handle is rotationally fixed with respect to the connecting rod.
8. stepless retractable mechanism according to claim 7, it is characterised in that: the locking groove is set on the connection handle lateral surface
Locking sliding slot that is upper and substantially extending along the connection handle rotation axis direction, the section of the locking sliding slot adapts to the self-locking body
Contradict end setting.
9. stepless retractable mechanism according to claim 8, it is characterised in that: the locking sliding slot has multiple, and circumference uniform distribution
Be set to connection handle on；Corresponding, each self-locking body is set to the position of the corresponding locking sliding slot in the connecting rod.
10. a kind of stepless collapsible screwdriver, it is characterised in that: including stepless described in claim 1-9 any claim
Telescoping mechanism；
One end of the connection handle forms one and turns end, to constitute a driver bit；A hand-held part is formed on the connecting rod outer wall,
To constitute a screwdriver handle；
The driver bit can turn outside end towards screwdriver handle along the screwdriver handle axis actively loaded in the screwdriver handle
Side, the distance of the resistance surface to the screwdriver handle rotation axis is in reduction trend, single to be provided by the axial self-locking component
To holding power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452395.9U CN208744677U (en) | 2018-09-06 | 2018-09-06 | A kind of stepless retractable mechanism and stepless collapsible screwdriver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821452395.9U CN208744677U (en) | 2018-09-06 | 2018-09-06 | A kind of stepless retractable mechanism and stepless collapsible screwdriver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208744677U true CN208744677U (en) | 2019-04-16 |
Family
ID=66082885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821452395.9U Active CN208744677U (en) | 2018-09-06 | 2018-09-06 | A kind of stepless retractable mechanism and stepless collapsible screwdriver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208744677U (en) |
Cited By (2)
| 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 |
| CN113043203A (en) * | 2021-04-16 | 2021-06-29 | 宁波泓谊塑胶科技有限公司 | Telescopic screwdriver |
-
2018
- 2018-09-06 CN CN201821452395.9U patent/CN208744677U/en active Active
Cited By (2)
| 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 |
| CN113043203A (en) * | 2021-04-16 | 2021-06-29 | 宁波泓谊塑胶科技有限公司 | Telescopic screwdriver |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6668941B2 (en) | Screw holding and driving device | |
| US9943946B2 (en) | Tool bits with floating magnet sleeves | |
| US8726769B1 (en) | Universal screw holder for screwdrivers | |
| CN208744677U (en) | A kind of stepless retractable mechanism and stepless collapsible screwdriver | |
| US20080184853A1 (en) | Screw Positioning Sleeve Assembly | |
| EP2837468B1 (en) | Bit holder with floating magnet sleeve | |
| US6305255B1 (en) | Modular screwdriver with four usable wrench units of different sizes | |
| CA2567188A1 (en) | Universal tool bit shank | |
| CA2510299A1 (en) | Bottle holder | |
| WO2009022419A1 (en) | Screw fastener | |
| US20110038659A1 (en) | Adjustable length pen holder | |
| EP1923161A3 (en) | Holesaw mandrel assembly | |
| US6510768B2 (en) | Battery-powered screwdriver with integral bit holder | |
| CN102673709A (en) | Handle assembly | |
| CN108994766A (en) | A kind of stepless retractable mechanism and stepless collapsible screwdriver | |
| US5067836A (en) | Lipstick key chain attachment | |
| US7395739B1 (en) | Portable screwdriver | |
| US20050116429A1 (en) | Fast and convenient operation structure of a screwdriver head socket | |
| CA2502014A1 (en) | Pole grip with storage compartment | |
| WO2004012490A8 (en) | Insertion extraction device having a flexible sleeve | |
| EP1563935A3 (en) | Spindle structure of a machine tool | |
| US6467716B1 (en) | Strap reel adapter | |
| US20190375091A1 (en) | Multiple Screwdriver Bit Storing Screwdriver | |
| CN204913727U (en) | Multifunctional screwdriver | |
| WO2013155289A1 (en) | Bit holder |
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 | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: The utility model relates to a stepless telescopic mechanism and a stepless telescopic screw driver Effective date of registration: 20210415 Granted publication date: 20190416 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 | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231023 Granted publication date: 20190416 Pledgee: Bank of China Limited Xiamen Tong'an sub branch Pledgor: XIAMEN NANCHBIT PRECISION TOOLS Co.,Ltd. Registration number: Y2021980002661 |