[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

CN106425963B - A screw removal tool - Google Patents

A screw removal tool Download PDF

Info

Publication number
CN106425963B
CN106425963B CN201610901077.5A CN201610901077A CN106425963B CN 106425963 B CN106425963 B CN 106425963B CN 201610901077 A CN201610901077 A CN 201610901077A CN 106425963 B CN106425963 B CN 106425963B
Authority
CN
China
Prior art keywords
rod
screw
handle
tool
annular
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
Application number
CN201610901077.5A
Other languages
Chinese (zh)
Other versions
CN106425963A (en
Inventor
朱加炉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Original Assignee
Zhejiang Geely Holding Group Co Ltd
Zhejiang Geely Automobile Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Geely Holding Group Co Ltd, Zhejiang Geely Automobile Research Institute Co Ltd filed Critical Zhejiang Geely Holding Group Co Ltd
Priority to CN201610901077.5A priority Critical patent/CN106425963B/en
Publication of CN106425963A publication Critical patent/CN106425963A/en
Application granted granted Critical
Publication of CN106425963B publication Critical patent/CN106425963B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00Screwdrivers
    • B25B15/001Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00Screwdrivers
    • B25B15/02Screwdrivers operated by rotating the handle

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The present invention provides a kind of mounting/dismounting screw tool tool, it includes handling assemblies, the body of rod and handle, the body of rod is connected between handling assemblies and handle, handling assemblies include the mandrel being mutually engaged for the screw terminal recess with minimum thread form and multiple annular screw keys for being mutually engaged for the screw terminal recess with other different sizes, multiple annular screw keys are cascadingly set on the periphery of mandrel, and multiple annular screw keys pass through an elastic element respectively and are connected with the body of rod, when annular screw key is by axial compressive force, annular screw key is mobile towards the direction close to handle and compression elastic element, when the axial compressive force disappears, annular screw key resets under the action of elastic-restoring force.In summary, since handling assemblies include the screw key being mutually engaged for the screw terminal recess with minimum thread form and multiple annular screw keys for being mutually engaged for the screw terminal recess with other different sizes, therefore mounting/dismounting screw tool tool through the invention, can be loaded and unloaded directly against the screw of different size.

Description

A kind of mounting/dismounting screw tool tool
Technical field
The present invention relates to dismantling device technical fields, and in particular to a kind of mounting/dismounting screw tool tool.
Background technique
Current existing Quincunx screw suite of tools generally comprises the plum blossom key screw key of a pad and several specifications, When work, for the Quincunx screw of different size, the plum blossom key screw key of dimension is changed to be loaded and unloaded.Therefore, it is necessary to Prepare the shank body of different length and the plum blossom key screw key of different model specification, not only needs the plum blossom spiral shell in handling different size It is manually replaced when silk, and at work, plum blossom key screw key is easy to fall into components interior.
Summary of the invention
In view of this, the present invention provides a kind of spiral shell that is not required to manually replacement and can be loaded and unloaded for the screw of different size Silk handling instrument.
In order to achieve the above-mentioned advantages, the present invention provides a kind of mounting/dismounting screw tool tool comprising handling assemblies, the body of rod and handle, The body of rod is connected between handling assemblies and handle, and handling assemblies include the core being mutually engaged for the screw terminal recess with minimum thread form Axis and the multiple annular screw keys being mutually engaged for the screw terminal recess with other different sizes, multiple annular screw keys successively layer The folded periphery for being set to mandrel, and multiple annular screw keys pass through an elastic element respectively and are connected with the body of rod, when annular screw key When by axial compressive force, annular screw key is mobile towards the direction close to handle and compression elastic element, when the axial compressive force disappears When mistake, annular screw key resets under the action of elastic-restoring force, and elastic element stacking is arranged in the body of rod, one end and the body of rod A stationary plane of close handle be connected, the other end is connected with corresponding annular screw key respectively, elastic element far from solid The one end for determining face is equipped with sleeve, and one end close to annular screw key of elastic element is located in sleeve, sleeve and corresponding ring Shape screw key is connected.
Further, it is fixed with support post on the stationary plane of the body of rod, the free end of support post and corresponding annular spiral shell It is spaced a distance between silk key, elastic element is set in outside support post.
Further, sleeve includes annular inner wall, the annular outer wall being coaxially disposed with annular inner wall and is connected to annular Bottom connection wall between inner wall and annular outer wall, the outer surface of bottom connection wall are connected with corresponding annular screw key.
Further, the body of rod includes first body of rod being connected with handle and is set to inside first body of rod and can opposite first bar Second body of rod of body sliding, first body of rod and second body of rod include the proximal end close to handle and the distal end far from handle, and first The distal end of the body of rod is radially equipped with the first card slot, and the proximal end of second body of rod is equipped with the first fixture block that can be arranged in the first card slot And the first elastomer being connected with the first fixture block, keep its proximal end close when second body of rod is drawn to outward relative to first body of rod When the position of the distal end of first body of rod, the first fixture block is caught in the first card slot, when second body of rod is inwardly received relative to first body of rod When contracting, the first fixture block is under the action of the first elastomer by deviating from the first card slot.
Further, the first fixture block is formed in the free end of the first card column of a V-type, and the first card column includes two mutually hinges The first cylinder connect, it is outer and be located in the first locating piece of the outer projection of the first card column and that the first elastomer sleeve is set to the first card column Between the inner sidewall of bipole body, the hinge point of the first cylinder is connected with drawstring, and drawstring is connected with the button being set on handle, when When second body of rod is drawn to the position for the distal end for making its proximal end close to first body of rod relative to first body of rod outward, drawstring is tightened up And hinge point is pulled to push the first fixture block protruding close to handle motion and be caught in the first card slot, when the second body of rod phase When for first body of rod to contract, drawstring is loosened by push button, the first fixture block is under the promotion of the first elastomer by Abjection in one card slot.
Further, the inner sidewall of the proximal end of first body of rod is equipped with the first convex block, the lateral wall of the proximal end of second body of rod It is equipped with the first groove corresponding with the first convex block, keeps its proximal end close when second body of rod is inwardly contracted to relative to first body of rod When the proximal end of first body of rod, the first convex block is caught in the first groove.
Further, the body of rod further includes being set to the intracorporal third body of rod of the second bar, on the inner sidewall of the proximal end of second body of rod Equipped with the second convex block, the lateral wall of the proximal end of the third body of rod is equipped with the second groove corresponding with the second convex block, second body of rod Distal end is radially equipped with the second card slot, the proximal end of the third body of rod be equipped with the second fixture block that can be arranged in the second card slot and with The second connected elastomer of second fixture block, the second fixture block are formed in the free end of the second card column of a V-type, and the second card column includes two The second cylinder that root is hinged, the second elastomer sleeve, which is set to outside the second card column and is located in the second of the outer projection of the second cylinder, to be determined Between position block and the inner sidewall of the third body of rod, the hinge point of the second cylinder is connected with drawstring, and drawstring is hinged with the second cylinder Position is connected.
Further, mounting/dismounting screw tool tool further includes a folding assisted handle, and folding assisted handle includes be articulated in handle one To rod piece.
In conclusion since handling assemblies include the screw key being mutually engaged for the screw terminal recess with minimum thread form and use In multiple annular screw keys that the screw terminal recess with other different sizes is mutually engaged, therefore mounting/dismounting screw tool work through the invention Tool, can be loaded and unloaded directly against the screw of different size.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the mounting/dismounting screw tool tool of one embodiment of the invention.
Fig. 2 is the whole schematic cross-sectional view of the mounting/dismounting screw tool tool.
Fig. 3 is the partial schematic sectional view of the mounting/dismounting screw tool tool.
Fig. 4 is another partial schematic sectional view of the mounting/dismounting screw tool tool.
Specific embodiment
The present invention is further described in detail below with reference to the accompanying drawings and embodiments.It should be appreciated that described herein Specific embodiment is only used to explain the present invention, is not intended to limit the present invention.
As shown in Figs 1-4, mounting/dismounting screw tool tool of the invention includes handling assemblies 1, the body of rod 2 and handle 3, and the body of rod 2 connects It is connected between handling assemblies 1 and handle 3, handling assemblies 1 include the mandrel being mutually engaged for the screw terminal recess with minimum thread form 11 and for multiple annular screw keys 12 that the screw terminal recess with other different sizes is mutually engaged, multiple annular screw keys 12 according to It is secondary that the periphery for being set to mandrel 11 is laminated, and multiple annular screw keys 12 are connected by an elastic element 7 with the body of rod 2 respectively, when When annular screw key 12 is by axial compressive force, annular screw key 12 is mobile towards the direction close to handle 3 and compression elastic element 7, when the axial compressive force disappears, annular screw key 12 resets under the action of elastic-restoring force.
Elastic element stacking is arranged in the body of rod 2, and one end is connected with a stationary plane 24 of the close handle 3 of the body of rod 2, separately One end is connected with corresponding annular screw key 12 respectively.Support post 25, support post are fixed on the stationary plane 24 of the body of rod 2 It is spaced a distance between 25 free end and corresponding annular screw key 12, elastic element 7 is set in outside support post 25. One end of the separate stationary plane 24 of elastic element is equipped with sleeve 26, and one end close to annular screw key 12 of elastic element 7 is located at In sleeve 26, sleeve 26 is connected with corresponding annular screw key 12.Sleeve 26 includes annular inner wall 261 and annular inner wall 261 The annular outer wall 262 of coaxial arrangement and the bottom connection wall 263 being connected between annular inner wall 261 and annular outer wall 262, The outer surface of bottom connection wall 263 is connected with corresponding annular screw key 12.
The body of rod 2 includes first body of rod 21 being connected with handle 3 and is set to the inside of first body of rod 21 and can opposite first body of rod Second body of rod 22 of sliding, first body of rod 21 and second body of rod 22 include remote with what it is far from handle 3 close to the proximal end of handle 3 End, the distal end of first body of rod 21 are radially equipped with the first card slot 211, and the proximal end of second body of rod 22, which is equipped with, can be arranged in the first card The first fixture block 221 in slot 211 and the first elastomer 222 being connected with the first fixture block 221, when second body of rod 22 is relative to When one body of rod 21 is drawn to the position for the distal end for making its proximal end close to first body of rod 21 outward, the first fixture block 221 is caught in the first card In slot 211, when second body of rod 22 relative to first body of rod 21 to contract when, work of first fixture block 221 in the first elastomer 222 By deviating from the first card slot 211 under.
First fixture block 221 is formed in the free end of the first card column 223 of a V-type, and the first card column 223 includes two mutually hinges The first cylinder connect, the first elastomer 222 are sheathed on outside the first card column 223 and are located in the first of the outer projection of the first card column 223 Between locating piece 224 and the inner sidewall of second body of rod 22, the hinge point 225 of the first cylinder is connected with drawstring 5, drawstring 5 with set It is connected in the button 6 on handle 3, makes its proximal end close to the first bar when second body of rod 22 is drawn to outward relative to first body of rod 21 When the position of the distal end of body 21, drawstring 5 is tightened up and hinge point 225 is pulled to move close to handle 3, pushes the first fixture block 221 It is protruding and be caught in the first card slot 211, when second body of rod 22 relative to first body of rod 21 to contract when, by by pressing Button 6 loosens drawstring 5, and the first fixture block 221 is under the promotion of the first elastomer 222 by deviating from the first card slot 211.
The inner sidewall of the proximal end of first body of rod 21 is equipped with the first convex block 212, on the lateral wall of the proximal end of second body of rod 22 Equipped with first groove 226 corresponding with the first convex block 212, make it when second body of rod 22 is inwardly contracted to relative to first body of rod 21 When proximal end is close to the proximal end of first body of rod 21, the first convex block 212 is caught in the first groove 226.
The body of rod 2 further includes the third body of rod 23 in second body of rod 21, is set on the inner sidewall of the proximal end of second body of rod 22 There is the second convex block 227, the lateral wall of the proximal end of the third body of rod 23 is equipped with second groove 231 corresponding with the second convex block 227, the The distal end of bipole body 22 is radially equipped with the second card slot 228, and the proximal end of the third body of rod 23, which is equipped with, can be arranged in the second card slot 228 The second interior fixture block 232 and the second elastomer 233 being connected with the second fixture block 232, the second fixture block 232 are formed in a V-type The free end of second card column 234, the second card column 234 include two the second cylinders being hinged, and the second elastomer 233 is sheathed on Second card column 234 is outer and is located between the second locating piece 235 and the inner sidewall of the third body of rod 23 of the outer projection of the second cylinder, the The hinge point 236 of two cylinders is connected with drawstring 5, and drawstring 5 is connected with the hinge point 236 of the second cylinder.
In addition, mounting/dismounting screw tool tool further includes a folding assisted handle 4, folding assisted handle 4 includes a pair for being articulated in handle 3 Rod piece 41.
When in use, first keep first body of rod 21, second body of rod 22, the third body of rod 23 relatively sliding for different depth operating conditions It moves to the flexible body of rod 2, after the length for regulating the body of rod 2, handling assemblies 1 is inserted into screw, if the annular screw of outer ring Key 12 just can be mutually engaged with screw terminal recess, then can directly rotating handles 3 screw is loaded and unloaded, if the annular spiral shell of outer ring Silk key 12 is bigger than screw terminal recess, then screw can apply a side (upward) far from screw to the annular screw key 12 of the outer ring Axial force, so that it is (upward) mobile away from the side of screw to make the annular screw key 12 of the outer ring, if at this moment inner ring One annular screw key 12 or mandrel 11 just can mutually be engaged with screw terminal recess, then rotatable grip 3 loads and unloads screw. After completed loading, mounting/dismounting screw tool tool is taken out, the annular screw key 12 for being moved to top restores extremely again under the restoring force of spring It is in situ.
In conclusion since handling assemblies 1 include the screw key 11 being mutually engaged for the screw terminal recess with minimum thread form With the multiple annular screw keys 12 being mutually engaged for the screw terminal recess with other different sizes, therefore screw through the invention Handling instrument can be loaded and unloaded directly against the screw of different size.Since the body of rod 2 is scalable, different depths can be met Spend operating condition and easy to carry.It is not in operation since mandrel 11 and multiple annular screw keys 12 are integral type tooling heads When mounting/dismounting screw tool tool accessory the problem of falling into interiors of products.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.

Claims (8)

1. a kind of mounting/dismounting screw tool tool, which is characterized in that it includes handling assemblies (1), the body of rod (2) and handle (3), the bar Body (2) is connected between the handling assemblies (1) and the handle (3), the handling assemblies (1) include for minimum thread form The screw terminal recess mandrel (11) being mutually engaged and the multiple annulars being mutually engaged for the screw terminal recess with other different sizes Screw key (12), the multiple annular screw key (12) are cascadingly set on the periphery of the mandrel (11), and the multiple Annular screw key (12) is connected with the body of rod (2) by an elastic element (7) respectively, when the annular screw key (12) by When axial compressive force, the annular screw key (12) is mobile towards the direction close to the handle (3) and compresses the elastic element (7), when the axial compressive force disappears, the annular screw key (12) resets under the action of elastic-restoring force, the elasticity member Part is stacked in the body of rod (2), and one end is connected with a stationary plane (24) for the close handle (3) of the body of rod (2), The other end is connected with the corresponding annular screw key (12) respectively, separate the stationary plane (24) of the elastic element One end is equipped with sleeve (26), and one end close to the annular screw key (12) of the elastic element (7) is located at the sleeve (26) in, the sleeve (26) is connected with the corresponding annular screw key (12).
2. mounting/dismounting screw tool tool as described in claim 1, which is characterized in that fixed on the stationary plane (24) of the body of rod (2) Have support post (25), between the free end of the support post (25) and corresponding annular screw key (12) interval it is certain away from From the elastic element (7) is set in the support post (25) outside.
3. mounting/dismounting screw tool tool as described in claim 1, which is characterized in that the sleeve (26) include annular inner wall (261), With annular inner wall (261) coaxial arrangement annular outer wall (262) and be connected to the annular inner wall (261) and the annular Bottom connection wall (263) between outer wall (262), the outer surface of the bottom connection wall (263) and corresponding annular screw key (12) it is connected.
4. mounting/dismounting screw tool tool as described in claim 1, which is characterized in that the body of rod (2) includes and the handle (3) phase First body of rod (21) even and be set to first body of rod (21) it is internal and can relatively described first body of rod sliding second body of rod (22), first body of rod (21) and second body of rod (22) include close to the proximal end of the handle (3) and far from described The distal end of the distal end of handle (3), first body of rod (21) is radially equipped with the first card slot (211), second body of rod (22) proximal end be equipped with the first fixture block (221) that can be arranged in first card slot (211) and with first fixture block (221) connected the first elastomer (222), when second body of rod (22) is drawn to outward relative to first body of rod (21) When making position of its proximal end close to the distal end of first body of rod (21), first fixture block (221) is caught in first card slot (211) It is interior, when second body of rod (22) relative to first body of rod (21) to contract when, first fixture block (221) is described By abjection in first card slot (211) under the action of first elastomer (222).
5. mounting/dismounting screw tool tool as claimed in claim 4, which is characterized in that first fixture block (221) is formed in a V-type The free end of first card column (223), first card column (223) include two the first cylinders being hinged, first bullet Property body (222) is sheathed on first card column (223) outside and is located in the first locating piece of the outer projection of first card column (223) (224) between the inner sidewall of second body of rod (22), the hinge point (225) of first cylinder is connected with drawstring (5), The drawstring (5) is connected with the button (6) being set on the handle (3), when second body of rod (22) is relative to described first The body of rod (21) is outward when being drawn to the position for the distal end for making its proximal end close to first body of rod (21), the drawstring (5) be tightened up and It pulls the hinge point (225) to move close to the handle (3), pushes first fixture block (221) protruding and be caught in In first card slot (211), when second body of rod (22) relative to first body of rod (21) to contract when, by pressing Press the button (6) to loosen the drawstring (5), first fixture block (221) under the promotion of first elastomer (222) by Abjection in first card slot (211).
6. mounting/dismounting screw tool tool as claimed in claim 4, which is characterized in that the inner sidewall of the proximal end of first body of rod (21) It is equipped with the first convex block (212), it is right with first convex block (212) that the lateral wall of the proximal end of second body of rod (22) is equipped with The first groove (226) answered makes its proximal end when second body of rod (22) is inwardly contracted to relative to first body of rod (21) When close to the proximal end of first body of rod (21), first convex block (212) is caught in first groove (226).
7. mounting/dismounting screw tool tool as claimed in claim 4, which is characterized in that the body of rod (2) further includes being set to described second The inner sidewall of the third body of rod (23) in the body of rod (21), the proximal end of second body of rod (22) is equipped with the second convex block (227), institute The lateral wall for stating the proximal end of the third body of rod (23) is equipped with the second groove (231) corresponding with the second convex block (227), described The distal end of second body of rod (22) is radially equipped with the second card slot (228), and the proximal end of the third body of rod (23), which is equipped with to block, to be set In the second fixture block (232) in second card slot (228) and the second elastomer being connected with second fixture block (232) (233), second fixture block (232) is formed in the free end of the second card column (234) of a V-type, the second card column (234) packet Two the second cylinders being hinged are included, second elastomer (233) is sheathed on second card column (234) outside and is located in Between outer the second locating piece (235) of projection of second cylinder and the inner sidewall of the third body of rod (23), second column The hinge point (236) of body is connected with drawstring (5), and the drawstring (5) is connected with the hinge point (236) of second cylinder.
8. mounting/dismounting screw tool tool as described in claim 1, which is characterized in that the mounting/dismounting screw tool tool further includes auxiliary folding Folded handle (4), the folding assisted handle (4) include a pair of of the rod piece (41) for being articulated in the handle (3).
CN201610901077.5A 2016-10-17 2016-10-17 A screw removal tool Active CN106425963B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610901077.5A CN106425963B (en) 2016-10-17 2016-10-17 A screw removal tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610901077.5A CN106425963B (en) 2016-10-17 2016-10-17 A screw removal tool

Publications (2)

Publication Number Publication Date
CN106425963A CN106425963A (en) 2017-02-22
CN106425963B true CN106425963B (en) 2019-02-22

Family

ID=58174254

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610901077.5A Active CN106425963B (en) 2016-10-17 2016-10-17 A screw removal tool

Country Status (1)

Country Link
CN (1) CN106425963B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127797A (en) * 1962-05-01 1964-04-07 Jesse P Rogers Hand tool for rotating a threaded member having axially movable clutching handle sections
CN2291265Y (en) * 1997-05-13 1998-09-16 曾鸿贵 Improved structure of screwdriver
CN2500434Y (en) * 2001-09-11 2002-07-17 张建平 Folding boosting screw driver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997948A (en) * 1934-06-04 1935-04-16 Pearson Andrew Automatic socket wrench
CN2056117U (en) * 1989-08-14 1990-04-18 王恩生 Semi-automatic combination thrust screwdriver
CN2276858Y (en) * 1996-01-29 1998-03-25 廖本煌 Sockets for Nuts of All Shapes and Sizes
CN204183468U (en) * 2014-10-10 2015-03-04 黄应祥 Universal socket wrench

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127797A (en) * 1962-05-01 1964-04-07 Jesse P Rogers Hand tool for rotating a threaded member having axially movable clutching handle sections
CN2291265Y (en) * 1997-05-13 1998-09-16 曾鸿贵 Improved structure of screwdriver
CN2500434Y (en) * 2001-09-11 2002-07-17 张建平 Folding boosting screw driver

Also Published As

Publication number Publication date
CN106425963A (en) 2017-02-22

Similar Documents

Publication Publication Date Title
US9534628B1 (en) Folding device for baby carriage
GB2581712A (en) Expandable device for a portable electronic device
US5826928A (en) Multifunctional device for catching and holding an object
US20050034573A1 (en) Hand tool having a retractable handle structure
US2320611A (en) Grapple hook
US8973472B2 (en) Tool extension bar
WO2019017077A1 (en) Connection structure of operation rod
US10690279B2 (en) Valve connector
US8746703B2 (en) Screwdriver head mounting structure
JP2018521750A5 (en)
CN106425963B (en) A screw removal tool
CN107342181B (en) Emergency stop button
US7051998B2 (en) Leverage hammer
JP6480565B2 (en) Rigid needle protector and method and apparatus used for assembly thereof
CN104552106A (en) Multifunctional wrench
WO2018053930A1 (en) Socket assembly
TW201623812A (en) Rotary type fixing device
KR200479508Y1 (en) Lifting unit for stud welder
JP4390754B2 (en) Electric vacuum cleaner
CN101530990B (en) Fixture
US20050060860A1 (en) Tire valve puller
US2477270A (en) Bearing replacer tool
CN211333039U (en) Piston pin check ring preassembling mechanism
TWI323694B (en)
CN207841218U (en) Nail extractor

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant