CN110303445B - Spanner - Google Patents
Spanner Download PDFInfo
- Publication number
- CN110303445B CN110303445B CN201910428877.3A CN201910428877A CN110303445B CN 110303445 B CN110303445 B CN 110303445B CN 201910428877 A CN201910428877 A CN 201910428877A CN 110303445 B CN110303445 B CN 110303445B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- jaw
- hinged
- connecting block
- column
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/02—Spanners; Wrenches with rigid jaws
- B25B13/06—Spanners; Wrenches with rigid jaws of socket type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the technical field of hardware tools, and provides a wrench which comprises a first guide column, a connecting column, a first jaw, a second jaw, a hollow sleeve, a connecting block and a connecting assembly; the second jaw is arranged at one side end part of the sleeve; the sleeve is provided with a notch, the connecting column is positioned in the sleeve and is connected with the first guide column, and the connecting column moves along the length direction of the sleeve so as to enable the first guide column to move along the length direction of the notch; the first end of the connecting block is hinged to the sleeve, the second end of the connecting block is provided with a first jaw, and the distance between the first jaw and the second jaw is adjustable; the first end of coupling assembling articulates in first guide post, and the second end of coupling assembling articulates in the sleeve, and the third end of coupling assembling articulates in the third end of connecting block. This spanner is through adjusting the interval that first keep silent and the second of connecting block was held, adjusts the interval between first keeping silent and the second keeps silent promptly, can be applicable to not equidimension nut or bolt, can conveniently press from both sides out with the nut or the bolt of turning round down.
Description
Technical Field
The invention relates to the technical field of hardware tools, in particular to a wrench.
Background
In the mechanical field, when processing, assembling or maintaining the product, often use the spanner, the size and the shape of the cover barrel hole of a present box spanner are all fixed unchangeable, this limits its application range, only can use on corresponding nut or bolt. Meanwhile, the existing socket wrench does not have a clamping function, and after the nut or the bolt is twisted off, the nut or the bolt is often picked up by a person with hands or picked up by other tools, especially, the nut or the bolt is screwed tightly into a deep hole on narrow equipment or the nut or the bolt is screwed loose in the deep hole.
Disclosure of Invention
The invention aims to provide a wrench which can be suitable for nuts or bolts with different sizes and shapes, so as to solve the problem that the existing wrench is only suitable for nuts or bolts with specific sizes and cannot clamp the disassembled nuts or bolts.
The embodiment of the invention provides a wrench, which comprises: the clamping device comprises a first guide column, a connecting column, a first jaw, a second jaw and a hollow sleeve, and further comprises a connecting block and a connecting assembly; the second jaw is arranged at one side end part of the sleeve; the sleeve is provided with a notch, the connecting column is positioned in the sleeve and connected with the first guide column, and the connecting column moves along the length direction of the sleeve so as to enable the first guide column to move back and forth along the length direction of the notch; the first end of the connecting block is hinged to the sleeve, the second end of the connecting block is provided with the first jaw, and the distance between the first jaw and the first jaw is adjustable; the first end of the connecting assembly is hinged to the first guide column, the second end of the connecting assembly is hinged to the sleeve, and the third end of the connecting assembly is hinged to the third end of the connecting block.
Wherein, still include second guide post, connecting pipe and handle, the spliced pole sliding connection in the connecting pipe, the connecting pipe connect in the second guide post, the second guide post articulate in the handle.
And the end part of the other side of the sleeve is in threaded connection with an end cover.
The connecting assembly comprises a first connecting plate and a pressure rod; one end of the first connecting plate is hinged to the first guide column, the other end of the first connecting plate is hinged to the first end of the pressing rod, the second end of the pressing rod is hinged to the sleeve, and the third end of the pressing rod is hinged to the third end of the connecting block.
The connecting assembly further comprises a second connecting plate, one end of the second connecting plate is hinged to the sleeve, and the other end of the second connecting plate is hinged to the second end of the pressing rod.
The first jaw comprises a first clamping part and a first connecting part connected with the first clamping part, the first connecting part is connected with a screw rod, and the screw rod is in threaded connection with the second end of the connecting block.
The second jaw comprises a second clamping part and a second connecting part connected with the second clamping part, and the second connecting part is in threaded connection with one side end of the sleeve.
The side wall of the sleeve is provided with a first protruding portion and a second protruding portion, the first protruding portion and the second protruding portion are arranged at intervals along the length direction of the sleeve, and the first protruding portion is arranged close to the second jaw; the first end of the connecting block is hinged to the first protruding portion, and the second end of the connecting assembly is hinged to the second protruding portion.
The first lug plate and the second lug plate are arranged in parallel at intervals and are arranged in the length direction of the sleeve.
Wherein, the breach set up in first otic placode with in the middle of the second otic placode, and along the first otic placode with the central line direction extension of second otic placode.
According to the wrench provided by the embodiment of the invention, the distance between the first jaw and the second end of the connecting block is adjusted according to the size of the nut or the bolt head; move to the right side through the spliced pole, drive the rightwards movement of first guide post, the removal of first guide post makes coupling assembling move down, drives first keeping silent and moves down, when the spliced pole removed a distance, first keeping silent with the second keep silent and press from both sides tightly bolt or nut promptly, then clockwise or anticlockwise rotation certain number of turns with the sleeve can. The spanner can be suitable for nuts or bolts with different sizes and shapes by adjusting the distance between the first jaw and the second end of the connecting block, namely adjusting the distance between the first jaw and the second jaw, and can clamp off the screwed nuts or bolts conveniently and quickly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic view of the wrench according to the present invention;
FIG. 2 is a partial cross-sectional view of the wrench of the present invention in operation;
FIG. 3 is a schematic view of the wrench in a released state;
FIG. 4 is a partial cross-sectional view of the wrench of the present invention in a relaxed state;
FIG. 5 is a schematic view of a first guide post of the wrench of the present invention;
FIG. 6 is a schematic view of a second guide post of the wrench of the present invention;
FIG. 7 is a schematic view of a second jaw of the wrench of the present invention;
FIG. 8 is a schematic view of the structure of the socket of the wrench of the present invention.
Description of reference numerals:
1-a sleeve; 2-a first guide post; 3-a first connection plate; 4-a pressure bar; 5-a second connecting plate; 6-connecting blocks; 7-a gasket; 8-a screw rod; 9-a first jaw; 10-a second jaw; 11-end cap; 12-a handle; 13-a second guide post; 14-a connecting tube; 15-connecting column.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of the wrench according to the present invention, and as shown in fig. 1, the wrench according to the embodiment of the present invention includes: the device comprises a first guide post 2, a connecting post 15, a first jaw 9, a second jaw 10, a hollow sleeve 1, a connecting block 6 and a connecting assembly;
the second jaw 10 is arranged at one side end part of the sleeve 1; a gap is formed in the sleeve 1, the connecting column 15 is located inside the sleeve 1 and connected with the first guide column 2, and the connecting column 15 moves along the length direction of the sleeve 1 so that the first guide column 2 can move back and forth along the length direction of the gap; the first end of the connecting block 6 is hinged to the sleeve 1, the second end of the connecting block 6 is provided with a first jaw 9, and the distance between the first jaw and the second jaw is adjustable; the first end of coupling assembling articulates in first guide post 2, and the second end of coupling assembling articulates in sleeve 1, and the third end of coupling assembling articulates in the third end of connecting block 6.
In the practice of the invention, the distance between the first jaw 9 and the second end of the connecting block 6 is adjusted according to the size of the nut or the head of the bolt; move to the right side through spliced pole 15, drive the rightwards movement of first guide post 2, the removal of first guide post 2 makes coupling assembling move down, drives first jaw 9 and moves down, when spliced pole 15 removed a section distance, first jaw 9 and second jaw 10 were pressed from both sides tightly bolt or nut promptly, then with sleeve 1 clockwise or anticlockwise rotation certain number of turns can. The spanner can be suitable for nuts or bolts with different sizes and shapes by adjusting the distance between the first jaw 9 and the second end of the connecting block 6, namely adjusting the distance between the first jaw 9 and the second jaw 10, and can clamp out the screwed nuts or bolts conveniently and quickly.
On the basis of the above embodiment, as shown in fig. 6, the portable handheld device further comprises a second guide post 13, a connecting pipe 14 and a handle 12, wherein the connecting post 15 is slidably connected to the connecting pipe 14, the connecting pipe 14 is connected to the second guide post 13, and the second guide post 13 is hinged to the handle 12.
It should be noted that the holding portion of the handle 12 may be provided with a groove or the holding portion of the handle 12 may be covered with a rubber material to increase the friction force with the handle 12. The diameter of the handle 12 is smaller than the inner diameter of the sleeve 1. One end of the connecting column 15 and the 2 threaded connections of the first guide post, the other end of the connecting column 15 is connected in the connecting tube 14 in a sliding mode, the connecting tube 14 can be a U-shaped tube, the bottom of the U-shaped tube is provided with a through hole, the outer diameter of the connecting column 15 is smaller than the diameter of the through hole, the other end of the connecting column 15 is provided with a limiting part, the outer diameter of the limiting part is larger than the diameter of the through hole, the one end of the U-shaped tube is connected with the second guide post 13 in a threaded mode, and the other end.
It will be appreciated that the other end of the sleeve 1 is provided with a recess to enable the handle 12 to be arranged perpendicular to the other end of the sleeve 1.
In the practice of the invention, the distance between the first jaw 9 and the second end of the connecting block 6 is adjusted according to the size of the nut or the head of the bolt; handle 12 moves to the right side along the axial, handle 12's removal drive and handle 12 articulated second guide post 13 removes, second guide post 13's removal drives threaded connection and moves at connecting pipe 14 on second guide post 13, connecting pipe 14 removes behind the certain distance, drive spliced pole 15 and remove, remove to the right side through spliced pole 15, drive the removal to the right side of first guide post 2, the removal of first guide post 2, make coupling assembling move down, drive first jaw 9 and remove downwards, when spliced pole 15 removes a section distance, first jaw 9 and second jaw 10 are pressed from both sides tightly bolt or nut promptly, then through twist grip 12, so that sleeve 1 clockwise or anticlockwise rotation certain number of turns can. After the whole operation process is finished, the handle 12 can be restored to the original position and is located inside the sleeve 1, and the whole wrench is compact in structure and convenient to use.
On the basis of the above embodiment, the other end of the sleeve 1 is screwed with the end cap 11.
In the practice of the invention, the end cap 11 needs to be unscrewed before moving the handle 12; the end cap 11 needs to be screwed on after the clamping of the bolt or nut is completed. Through setting up this end cover 11 can prevent debris such as ash blanket from getting into the inside of sleeve 1, and then influence the life of this spanner.
On the basis of the above embodiment, as shown in fig. 5, the connecting assembly includes the first connecting plate 3 and the pressing rod 4; one end of the first connecting plate 3 is hinged to the first guide post 2, the other end of the first connecting plate 3 is hinged to the first end of the pressing rod 4, the second end of the pressing rod 4 is hinged to the sleeve 1, and the third end of the pressing rod 4 is hinged to the third end of the connecting block 6.
In the implementation of the invention, as shown in fig. 3 and 4, before clamping the bolt or the nut, the center lines of the first connecting plate 3 and the first guide column 2 are arranged in a superposition manner, the first end of the pressure lever 4 and the other end of the first connecting plate 3 are arranged at a certain angle, and the third end of the pressure lever 4 and the third end of the connecting block 6 are arranged at a certain angle; as shown in fig. 1 and 2, when the bolt or the nut is clamped, the first connecting plate 3 and the center line of the first guide post 2 are arranged at a certain angle, the first end of the pressure lever 4 and the center line of the other end of the first connecting plate 3 are arranged in a superposition manner, and the third end of the pressure lever 4 and the center line of the third end of the connecting block 6 are arranged in a superposition manner.
On the basis of the above embodiment, the connecting assembly further includes a second connecting plate 5, one end of the second connecting plate 5 is hinged to the sleeve 1, and the other end of the second connecting plate 5 is hinged to the second end of the pressing rod 4.
In the practice of the invention, as shown in figures 3 and 4, before the clamping of the bolt or nut, one end of the second connecting plate 5 is arranged perpendicularly to the sleeve 1; as shown in fig. 1 and 2, when the bolt or nut is clamped, the center line of the second connecting plate 5 is arranged at an angle with the axis of the sleeve 1.
On the basis of the above embodiment, the first jaw 9 includes a first clamping portion and a first connecting portion connected to the first clamping portion, the first connecting portion is connected to the screw rod 8, and the screw rod 8 is screwed to the second end of the connecting block 6.
In the implementation of the present invention, one end of the screw rod 8 is threadedly connected to the first connecting part, and the other end of the screw rod 8 is threadedly connected to the second end of the connecting block 6, and the distance between the first clamping part and the second end of the connecting block 6 can be adjusted by rotating the screw rod 8.
It should be noted that, the distance between the first clamping portion and the second end of the connecting block 6 can also be adjusted by two nuts, the first nut is located on the upper surface of the second end of the connecting block 6, the second nut is located on the lower surface of the second end of the connecting block 6, a gasket 7 is arranged between the first nut and the upper surface of the second end of the connecting block 6, and a gasket 7 is arranged between the second nut and the lower surface of the second end of the connecting block 6.
On the basis of the above embodiment, as shown in fig. 7, the second jaw 10 includes a second clamping portion and a second connecting portion connected to the second clamping portion, and the second connecting portion is screwed to one side end of the sleeve 1.
In the implementation of the present invention, the outer diameter of the second connecting portion is smaller than the inner diameter of the sleeve 1, so that the second connecting portion is screwed to one side end of the sleeve 1, and a plurality of through holes are formed in the second connecting portion. The plurality of through holes are arranged along a length direction of the second connection portion.
It should be noted that the second connection portion and the sleeve 1 may also be connected by providing a screw.
On the basis of the above embodiment, the side wall of the sleeve 1 is provided with a first protruding portion and a second protruding portion, the first protruding portion and the second protruding portion are arranged at intervals along the length direction of the sleeve 1, and the first protruding portion is arranged close to the second jaw 10; the first end of connecting block 6 articulates in first bellying, and the second end of coupling assembling articulates in the second bellying.
In the practice of the invention, both the first and second bosses may be integrally connected to the side wall of the sleeve 1. One end of the second connecting plate 5 is hinged to the second protruding portion.
On the basis of the above embodiment, as shown in fig. 8, each of the first boss and the second boss includes a first lug plate and a second lug plate which are arranged in parallel and spaced apart from each other, and each of the first lug plate and the second lug plate is arranged along the length direction of the sleeve.
In the practice of the invention, the distance between the first and second ear plates is selected according to the width of the connecting block 6 or the second connecting plate 5. A first end of the connecting block 6 is hinged to a first lug plate of the first protruding part and a second lug plate of the first protruding part through a pin shaft, and the first end of the connecting block 6 rotates around the pin shaft; one end of the second connecting plate 5 is hinged to the first lug plate of the second protruding portion and the second lug plate of the second protruding portion through a pin shaft, and one end of the second connecting plate 5 rotates around the pin shaft.
In the above embodiment, the notch is disposed between the first ear plate and the second ear plate and extends along the center line direction of the first ear plate and the second ear plate.
In the implementation of the present invention, the notch may be a rectangular notch, the rectangular notch may start to extend along one side end of the sleeve 1, and a limiting member is disposed inside the sleeve 1 to limit the maximum distance that the first guiding column 2 moves to the left side.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A wrench, comprising: the clamping device comprises a first guide column, a connecting column, a first jaw, a second jaw and a hollow sleeve, and is characterized by further comprising a connecting block and a connecting assembly; the second jaw is arranged at one side end part of the sleeve; the sleeve is provided with a notch, the connecting column is positioned in the sleeve and connected with the first guide column, and the connecting column moves along the length direction of the sleeve so as to enable the first guide column to move back and forth along the length direction of the notch; the first end of the connecting block is hinged to the sleeve, the second end of the connecting block is provided with the first jaw, and the distance between the first jaw and the first jaw is adjustable; the first end of the connecting assembly is hinged to the first guide column, the second end of the connecting assembly is hinged to the sleeve, and the third end of the connecting assembly is hinged to the third end of the connecting block;
the first jaw comprises a first clamping part and a first connecting part connected with the first clamping part, the first connecting part is connected with a lead screw, and the lead screw is in threaded connection with the second end of the connecting block.
2. The wrench according to claim 1, further comprising a second guide post, a connecting tube, and a handle, wherein the connecting post is slidably connected to the connecting tube, the connecting tube is connected to the second guide post, and the second guide post is hinged to the handle.
3. A wrench as claimed in claim 1 or claim 2, wherein the other end of the sleeve is threadedly connected to an end cap.
4. A wrench as claimed in claim 1 or claim 2, wherein said connecting assembly includes a first connecting plate and a strut; one end of the first connecting plate is hinged to the first guide column, the other end of the first connecting plate is hinged to the first end of the pressing rod, the second end of the pressing rod is hinged to the sleeve, and the third end of the pressing rod is hinged to the third end of the connecting block.
5. The wrench of claim 4, wherein the coupling assembly further includes a second connecting plate, one end of the second connecting plate being hingedly connected to the sleeve and the other end of the second connecting plate being hingedly connected to the second end of the compression bar.
6. The wrench according to claim 1, wherein the second jaw includes a second clamping portion and a second connecting portion connected to the second clamping portion, the second connecting portion being threadedly connected to one side end of the sleeve.
7. The wrench according to claim 1, wherein the side wall of the sleeve is provided with a first protrusion and a second protrusion, the first protrusion and the second protrusion are arranged at intervals along the length direction of the sleeve, and the first protrusion is arranged close to the second jaw; the first end of the connecting block is hinged to the first protruding portion, and the second end of the connecting assembly is hinged to the second protruding portion.
8. The wrench according to claim 7, wherein the first boss and the second boss each include first and second lugs spaced in parallel, the first and second lugs each being disposed along a length of the sleeve.
9. The wrench according to claim 8, wherein the notch is disposed intermediate the first and second blades and extends along a centerline of the first and second blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428877.3A CN110303445B (en) | 2019-05-22 | 2019-05-22 | Spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910428877.3A CN110303445B (en) | 2019-05-22 | 2019-05-22 | Spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110303445A CN110303445A (en) | 2019-10-08 |
| CN110303445B true CN110303445B (en) | 2021-02-19 |
Family
ID=68075014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910428877.3A Expired - Fee Related CN110303445B (en) | 2019-05-22 | 2019-05-22 | Spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110303445B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US78176A (en) * | 1868-05-26 | Improvement in wrenches | ||
| JPS54137996U (en) * | 1978-03-15 | 1979-09-25 | ||
| US4793225A (en) * | 1983-09-19 | 1988-12-27 | Ronald Berkich | Clamping tool |
| CN204354035U (en) * | 2014-11-19 | 2015-05-27 | 北方工业大学 | A kind of box spanner |
| CN204772271U (en) * | 2015-07-02 | 2015-11-18 | 江西科技学院 | Auto repair special spanner |
| CN106112881A (en) * | 2016-08-23 | 2016-11-16 | 无锡市东赫金属制品有限公司 | A kind of spanner of convenient regulation |
| CN205835127U (en) * | 2016-08-01 | 2016-12-28 | 宁波工程学院 | A kind of box spanner |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2069265A1 (en) * | 1991-08-26 | 1993-02-27 | Young S. Woo | Pipe wrench |
| DE19612755C2 (en) * | 1996-03-29 | 1999-01-21 | Gernot Hirse | Self-locking wrench |
| US6810775B2 (en) * | 2002-03-21 | 2004-11-02 | Tai-Her Yang | Pipe pliers with auxiliary pressurizing mechanism |
| MY155309A (en) * | 2008-07-02 | 2015-09-30 | Yap Wang Han | Improvement to adjustable ratchet wrench or spanner |
| CN205521100U (en) * | 2016-04-26 | 2016-08-31 | 国网河南省电力公司检修公司 | Transformer bolt spanner |
-
2019
- 2019-05-22 CN CN201910428877.3A patent/CN110303445B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US78176A (en) * | 1868-05-26 | Improvement in wrenches | ||
| JPS54137996U (en) * | 1978-03-15 | 1979-09-25 | ||
| US4793225A (en) * | 1983-09-19 | 1988-12-27 | Ronald Berkich | Clamping tool |
| CN204354035U (en) * | 2014-11-19 | 2015-05-27 | 北方工业大学 | A kind of box spanner |
| CN204772271U (en) * | 2015-07-02 | 2015-11-18 | 江西科技学院 | Auto repair special spanner |
| CN205835127U (en) * | 2016-08-01 | 2016-12-28 | 宁波工程学院 | A kind of box spanner |
| CN106112881A (en) * | 2016-08-23 | 2016-11-16 | 无锡市东赫金属制品有限公司 | A kind of spanner of convenient regulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110303445A (en) | 2019-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109551427B (en) | Dismounting device for threaded connection end cover | |
| CN210081628U (en) | Valve cover disassembling equipment | |
| CN204171946U (en) | Screw fixed cover and screwdriver | |
| CN208276792U (en) | A kind of portable type spanner | |
| CN110303445B (en) | Spanner | |
| CN105150149A (en) | Adjustable type internal and external hexagonal wrench | |
| CN204094689U (en) | Anti-fall screwdriver | |
| CN206254098U (en) | A kind of multifunctional wrench | |
| CN211867622U (en) | Double offset ring spanner for disassembling filtering equipment | |
| CN209831482U (en) | Screwdriver | |
| CN112917422A (en) | Plug disassembling and fastening wrench for overhauling railway locomotive | |
| CN114687683A (en) | Power tong back-up tong, power tong and application thereof | |
| CN210998421U (en) | Double-pin manual torque wrench | |
| CN209256819U (en) | A kind of electrolyte filter provision for disengagement | |
| CN216951166U (en) | Detachable expansion bolt | |
| CN210616381U (en) | Dismounting device of cutting nut | |
| CN214686260U (en) | Plug disassembling and fastening wrench for overhauling railway locomotive | |
| US9676087B2 (en) | Pair of circlip pliers | |
| CN213259262U (en) | Electric precipitation polymer insulating rod pulling-out device | |
| CN215470802U (en) | Maintenance tool for broadcast transmitter | |
| CN110722495B (en) | Double-pin manual torque wrench | |
| CN220839994U (en) | Cable plug mounting and dismounting device | |
| CN215847881U (en) | Hexagonal spanner | |
| CN110116385B (en) | Water plug plugging tool | |
| CN218905245U (en) | Dismounting device for excavator cylinder nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210219 Termination date: 20210522 |