CN111571503A - A spanner for dismouting earth bolt - Google Patents

A spanner for dismouting earth bolt Download PDF

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Publication number
CN111571503A
CN111571503A CN202010531611.4A CN202010531611A CN111571503A CN 111571503 A CN111571503 A CN 111571503A CN 202010531611 A CN202010531611 A CN 202010531611A CN 111571503 A CN111571503 A CN 111571503A
Authority
CN
China
Prior art keywords
hole
wrench
pin
bolt
positioning pin
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.)
Pending
Application number
CN202010531611.4A
Other languages
Chinese (zh)
Inventor
胡宗华
何桐波
徐武辉
马义刚
刘维
王建超
高晗
李�杰
李燕雄
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.)
Dali Bureau of Extra High Voltage Transmission Co
Original Assignee
Dali Bureau of Extra High Voltage Transmission Co
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 Dali Bureau of Extra High Voltage Transmission Co filed Critical Dali Bureau of Extra High Voltage Transmission Co
Priority to CN202010531611.4A priority Critical patent/CN111571503A/en
Publication of CN111571503A publication Critical patent/CN111571503A/en
Pending legal-status Critical Current

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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
    • B25B13/00Spanners; Wrenches
    • B25B13/02Spanners; Wrenches with rigid jaws
    • B25B13/06Spanners; Wrenches with rigid jaws of socket type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/0007Connections or joints between tool parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/143Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same for installing wire thread inserts or tubular threaded inserts

Abstract

The invention discloses a wrench for dismounting a grounding bolt, which is used for dismounting a bolt for connecting an angle iron tower and a grounding connecting plate and comprises a centering rod and a positioning pin, wherein the positioning pin is inserted into a bolt hole of the angle iron tower and the grounding connecting plate; the positioning pin is inserted into the tail end of the long side of the centering rod. The invention can be applied to quickly dismounting the tower grounding nut, improves the efficiency of field operation personnel, reduces the carrying of operation tools and instruments and greatly facilitates field operation.

Description

A spanner for dismouting earth bolt
Technical Field
The invention relates to the field of power transmission and transformation line maintenance, in particular to a wrench for disassembling and assembling a grounding bolt.
Background
Electric power iron tower adopts the reinforcing bar as the earth connection, and this earth connection has a steel sheet with the welding of iron tower junction, regard as the ground connection connecting plate with this steel sheet, in order to prevent stolen during the ground connection of electric power iron tower, the adoption is special bolt and nut of dysmorphism, and connecting hole and iron tower angle steel bolt hole on the ground connection connecting plate can all be touch when dismouting at every turn are difficult to the centering, this just needs to make the power up-draw with the ground connection connecting plate alone, in order to aim at connecting hole and bolt hole, wear the bolt again alone in addition, because the point of gripping does not exist above the connecting plate, consequently hardly aim at the bolt hole, need take many sets of instruments, and because the little many people operation of spatial position is very.
Disclosure of Invention
The invention aims to provide a wrench for dismounting a grounding bolt, which is designed aiming at the mounting of the grounding bolt, can be applied to quickly dismounting a tower grounding nut, improves the efficiency of field operation personnel, reduces the carrying of operation tools and instruments, and greatly facilitates the field operation.
The embodiment of the invention is realized by the following technical scheme:
a spanner for disassembling and assembling a grounding bolt is used for disassembling and assembling a bolt for connecting an angle iron tower and a grounding connecting plate and comprises a centering rod and a positioning pin, wherein the positioning pin is inserted into a bolt hole of the angle iron tower and the grounding connecting plate, the centering rod is in an L shape, and the centering rod comprises a short side of the centering rod and a long side of the centering rod which are integrally formed; the positioning pin is inserted into the tail end of the long side of the centering rod.
In one embodiment of the invention, the positioning pin is provided with a first positioning step and a stop pin, which is arranged along the radial direction of the positioning pin and penetrates through the positioning pin.
In an embodiment of the invention, the stop pin is transversely configured as a wedge-shaped block; the locating pin is configured with a stop pin hole configured as a wedge hole, and the stop pin is inserted into the stop.
In an embodiment of the present invention, the positioning pin is provided with an insertion rod, the end of the long side of the centering rod is provided with an insertion hole, and the insertion rod is inserted into the insertion hole.
In an embodiment of the invention, the positioning pin is provided with a first stringing hole.
In an embodiment of the invention, the stop pin is provided with a second stringing hole.
In an embodiment of the present invention, the wrench further includes an auxiliary wrench, the auxiliary wrench is in a thin plate shape, and the auxiliary wrench is configured with a dodecagonal hole.
In an embodiment of the present invention, the short side of the centering rod is configured with a second step, the auxiliary wrench is sleeved on the short side of the centering rod, and when the sleeve is inserted into the short side of the centering rod, the auxiliary wrench is located between the second step and the sleeve.
In one embodiment of the invention, the centering bars are provided with antiskid rubber sleeves.
The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:
according to the embodiment of the invention, the L-shaped centering rod is arranged, the positioning pin is arranged at one end of the centering rod, the sleeve is arranged at the other point, one bolt hole on the grounding connecting plate and one bolt hole on the angle iron of the iron tower are used as a stress point, the positioning pin prizes the grounding connecting plate through the lever principle to align the bolt holes of the two, the bolt holes of the two are aligned, the other bolt hole is threaded with the bolt after the alignment, and then the sleeve wrench on the device is used for screwing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded schematic view of the present invention;
FIG. 3 is a schematic view of the centering rod of the present invention;
FIG. 4 is a state diagram of the present invention in use;
fig. 5 is a schematic view showing misalignment between a connecting hole of a grounding connecting plate and a bolt hole of angle iron tower of the present invention.
Icon:
1-centering rod, 11-second step, 12-anti-skid rubber sleeve, 13-jack, 2-sleeve, 3-positioning pin, 31-first positioning step, 32-stop pin, 321-second rope-threading hole, 33-pointed cone, 34-first rope-threading hole, 35-inserted rod, 36-stop pin hole, 4-auxiliary wrench, 5-iron tower angle steel and 6-grounding connecting plate.
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. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of the present invention is used, the description is merely for convenience of describing the present invention and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus, cannot be understood as the limitation of the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "configured," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 5, a wrench for dismounting a ground bolt, which is used for dismounting a bolt connecting an angle iron tower 5 and a ground connection plate 6, includes a centering rod 1 and a positioning pin 3, wherein the positioning pin 3 is inserted into bolt holes of the angle iron tower 5 and the ground connection plate 6, the centering rod 1 is in an L shape, and the centering rod 1 includes a short side of the centering rod 1 and a long side of the centering rod 1 which are integrally formed; the positioning pin device further comprises a sleeve 2, the sleeve 2 is inserted at the tail end of the short side of the centering rod 1, and the positioning pin 3 is inserted at the tail end of the long side of the centering rod 1.
In order to realize applying to quick assembly disassembly shaft tower ground nut, improve on-the-spot operation personnel efficiency, it carries to reduce operation multiplexer utensil, the on-the-spot operation has greatly been made things convenient for, this technical scheme sets up including stick 1 to well, locating pin 3 and telescopic 2's spanner, stick 1 sets up to well is the L word form, stick 1 is including 1 minor face to well stick and 1 long limit of centering, 1 minor face end disposes square sleeve 2 to well stick and connects, the lateral wall that sleeve 2 connects is provided with the steel ball, the structure that this sleeve 2 connects is prior art, the dop of similar ratchet sleeve 2 spanner, sleeve 2 is the sleeve 2 of market purchase gained, overlap sleeve 2 to sleeve 2 when using. One end of the positioning pin 3 is a tapered part 33, the other end of the positioning pin 3 is provided with an insertion rod 35, the insertion hole 13 is arranged at the end of the long side of the centering rod 1, and the insertion rod 35 is inserted into the insertion hole 13 before the positioning pin 3 is used, so that the assembly connection of the positioning pin 3 and the long side of the middle rod is completed. A first positioning step 31 and a stop pin 32 are further provided on positioning pin 3, the stop pin 32 is disposed along a radial direction of positioning pin 3 and penetrates through positioning pin 3, the stop pin 32 is transversely configured as a wedge-shaped block, a stop pin 32 hole is provided on positioning pin 3, and the stop pin 32 hole is also configured as a wedge-shaped hole, and in use, the stop pin 32 is inserted into the stop pin 32 hole. And the long side of the middle rod 1 is also provided with an antiskid rubber sleeve 12.
The working process of the invention is as follows: before installing the bolts, inserting the insertion rods 35 of the positioning pins 3 into the insertion holes 13, sequentially penetrating the tapered parts 33 of the positioning pins 3 through the first connecting holes of the grounding connecting plates 6 and inserting the tapered parts into the first bolt holes of the angle iron 5, then holding the long sides of the centering rods 1 with one hand and holding the short sides of the centering rods 1 with the other hand, applying force to the short sides of the centering rods 1, prying the grounding connecting plates 6 by using the positioning pins 3 to align the first connecting holes of the grounding connecting plates 6 with the first bolt holes of the angle iron 5, and inserting the positioning pins 3 into the first connecting holes and the first bolt holes to fix the relative positions of the grounding connecting plates 6 and the angle iron 5. When the first location step 31 of locating pin 3 is contradicted with ground connection board 6, insert backstop round pin 32 again to backstop round pin 32 hole, to iron tower angle 5 and ground connection board 6 and as an organic whole, backstop round pin 32 is located iron tower angle 5 left side, first locating step 31 is located ground connection board 6 right side, because backstop round pin 32 and first locating step 31's existence, locating pin 3 can not fall out from the hole after inserting in first connecting hole and first bolt hole, the operating personnel of being convenient for vacate the both hands and carry out the bolt installation at the second bolt hole. The operation personnel carry out the bolt installation at the second bolt hole, will follow locating pin 3 to well stick 1 and pull out, install sleeve 2 again at this 1 minor face of well stick, pass second connecting hole and second bolt hole with the bolt, twist the nut on the bolt, overlap auxiliary wrench 4 in the hexagonal head of bolt again, overlap sleeve 2 in the nut, operation personnel hold auxiliary wrench 4 on one hand, another hand utilizes 1 drive sleeve 2 tightening nut to well stick, at the in-process of tightening nut, use auxiliary wrench 4 can avoid the bolt to follow the nut pivoted condition, the quick nut of screwing up of operation personnel of being convenient for.
When demolising first bolt, install sleeve 2 at 1 minor face to well stick, will overlap auxiliary wrench 4 in the hexagonal head of first bolt, utilize sleeve 2 to unscrew its nut, at the in-process of unscrewing the nut, use auxiliary wrench 4 to avoid the bolt to follow the nut pivoted condition, the quick nut of unscrewing of the operating personnel of being convenient for. After an operator removes a first bolt, insert locating pin 3 of this spanner in first bolt hole and first connecting hole to insert backstop round pin 32 position to 32 holes of backstop round pin, so that locating pin 3 can not fall out from the hole, the operator vacates both hands and removes a second bolt of being convenient for, moreover, because the use of aforementioned locating pin 3, can ensure that ground connection connecting plate 6 can not slide for iron tower angle steel 5 when removing a second bolt, the operator of being convenient for easily removes a second bolt. When the operator easily removes the second bolt, the second bolt is removed by using the sleeve 2 and the auxiliary wrench 4 in cooperation.
Compared with the prior art, when the bolt is installed, because the connecting hole of ground connection connecting plate 6 and the bolt hole of angle iron tower 5 are by positional deviation, this technical scheme sets up pointed cone portion 33, inserts the pointed end of pointed cone portion 33 to connecting hole and bolt hole overlap area earlier, then the operating personnel utilizes locating pin 3 to prize ground connection connecting plate 6 through utilizing lever principle, makes the connecting hole of ground connection connecting plate 6 and the bolt hole centering of angle iron tower 5, sets up pointed cone portion 33 and is favorable to realizing prizing of ground connection connecting plate 6. And in the process of prying the grounding connecting plate 6, the pointed cone part 33 of the positioning pin 3 also plays a role of guiding, and under the prying action of the positioning pin 3, the pointed cone part 33 guides the grounding connecting plate 6 to move along the surface of the pointed cone part 33 until the positioning pin 3 is completely inserted into the bolt hole.
Compared with the prior art, this technical scheme sets up inserted bar 35 at locating pin 3, sets up jack 13 at centering stick 1 minor face, utilizes inserted bar 35 to insert to jack 13 in to make locating pin 3 constitute rigid connection with centering stick 1, in order to guarantee that locating pin 3 and centering stick 1 junction have sufficient intensity and rigidity.
Compared with the prior art, this technical scheme adopts the stick 1 to the centre of L type, and with sleeve 2 setting with 1 minor face to the centre of stick, with locating pin 3 setting with 1 long limit to the centre of stick, when using 3 centering connecting holes of locating pin and bolt hole, utilize the arm of force of multiplicable sled on 1 long limit to the centre of stick, it is more laborsaving during the sled. And when inserting locating pin 3 to bolt hole, connecting hole, the operation personnel can be with regard to 1 minor face of stick as the grab handle, make things convenient for the operation personnel to hold. When the sleeve 2 is used for screwing the nut, the long edge of the centering rod 1 can be used as a force applying rod, so that the nut can be screwed more easily.
Compared with the prior art, the technical scheme is that the first positioning step 31 is arranged on the positioning pin 3, the first positioning step 31 plays roles of positioning and limiting, when the grounding connecting plate 6 is aligned with the iron tower angle steel 5, the positioning pin 3 is inserted into the connecting hole and the bolt hole, the positioning pin 3 can only penetrate through the bolt hole for setting the length through the first positioning step 31, in addition, in the process that an operator pries the grounding connecting plate 6 to forcibly insert the positioning pin 3 into the bolt hole, when the positioning pin 3 is provided with the first positioning step 31, the protection effect can also be played, at the moment of alignment of the connecting hole and the bolt hole, if the positioning pin 3 suddenly has no resistance, the operator can completely penetrate through the bolt hole by the positioning pin 3 and the long edge of the centering rod 1, so that the operator collides with the iron tower to be injured, therefore, the first positioning step 31 can be arranged to ensure that after the, the positioning pin 3 can only penetrate through the bolt hole to set a distance, and therefore the injury of operators is avoided.
Compared with the prior art, this technical scheme sets up first locating step 31 and backstop round pin 32 at locating pin 3, and the connecting hole of connecting plate 6 and iron tower angle steel 5's bolt hole centering as the ground connection, behind locating pin 3 run through connecting hole and the bolt hole, insert backstop round pin 32 to backstop round pin 32 hole to make locating pin 3 can not fall out from connecting hole and bolt hole, the operating personnel of being convenient for vacate the second bolt of both hands dismouting. The stop pin 32 is a wedge-shaped block, a wedge-hole-shaped stop pin 32 hole is formed in the positioning pin 3, the outer shape of the stop pin 32 is the same as the shape of the inner wall of the stop pin 32 hole, and the maximum cross section of the stop pin 32 hole is smaller than that of the stop pin 32, so that when the stop pin 32 is inserted into the stop pin 32 hole, a worker can clamp the stop pin 32 in the stop pin 32 hole with a little force.
In some embodiments, the locating pin 3 is configured with a first stringing hole 34 and the stop pin 32 is configured with a second stringing hole 321. Because the positioning pin 3 and the stop pin 32 are detachably connected, in order to facilitate carrying by an operator and avoid loss of parts, the positioning pin 3 is provided with the first rope threading hole 34 and the stop pin 32 is provided with the second rope threading hole 321 in the technical scheme, so that the positioning pin 3 and the stop pin 32 can be strung together by using a thin rope or an iron wire when the wrench is not used, and the positioning pin 3 and the stop pin 32 can be managed and stored in a centralized manner.
In some embodiments, the wrench 4 is a thin plate, and the wrench 4 is configured with a twelve-point hole. The short edge of the centering rod 1 is provided with a second step 11, the auxiliary wrench 4 is sleeved on the short edge of the centering rod 1, and when the sleeve 2 is inserted into the short edge of the centering rod 1, the auxiliary wrench 4 is positioned between the second step 11 and the sleeve 2. Because auxiliary wrench 4 is small-size part, when not using auxiliary wrench 4, can avoid breaking away from auxiliary wrench 4 with auxiliary wrench 4 to stick 1 in the middle, avoid auxiliary wrench 4 to lose.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A spanner for disassembling and assembling a grounding bolt is used for disassembling and assembling a bolt for connecting an angle iron tower and a grounding connecting plate, and comprises a centering rod and a positioning pin, wherein the positioning pin is inserted into a bolt hole of the angle iron tower and the grounding connecting plate; the positioning pin is inserted into the tail end of the long side of the centering rod.
2. The wrench for dismounting and mounting a ground bolt according to claim 1, wherein the positioning pin is provided with a first positioning step and a stop pin, and the stop pin is arranged along the radial direction of the positioning pin and penetrates through the positioning pin.
3. The wrench of claim 2, wherein the stop pin is transversely configured as a wedge-shaped block;
the locating pin is configured with a stop pin hole, and the stop pin hole is configured as a wedge-shaped hole, and the stop pin is inserted into the stop pin hole.
4. The wrench for removing a ground bolt of claim 2, wherein one end of the alignment pin is configured as a pointed portion.
5. The wrench for dismounting and mounting a ground bolt according to claim 2, wherein the positioning pin is provided with an insertion rod, the long-side end of the centering rod is provided with an insertion hole, and the insertion rod is inserted into the insertion hole.
6. The wrench for dismounting a ground bolt according to claim 1 or 2, wherein the positioning pin is provided with a first stringing hole.
7. The wrench for removing and installing an earth bolt according to claim 2, wherein the stop pin is provided with a second stringing hole.
8. The wrench for removing and installing an earth bolt according to claim 1, further comprising an auxiliary wrench, wherein the auxiliary wrench is formed in a thin plate shape and is provided with a dodecagonal hole.
9. The wrench as claimed in claim 8, wherein the short side of the centering rod is configured with a second step, the auxiliary wrench is sleeved on the short side of the centering rod, and when the sleeve is inserted into the short side of the centering rod, the auxiliary wrench is located between the second step and the sleeve.
10. The wrench for dismounting and mounting a ground bolt according to claim 1, wherein the centering rod is provided with an anti-slip rubber sleeve.
CN202010531611.4A 2020-06-11 2020-06-11 A spanner for dismouting earth bolt Pending CN111571503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010531611.4A CN111571503A (en) 2020-06-11 2020-06-11 A spanner for dismouting earth bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010531611.4A CN111571503A (en) 2020-06-11 2020-06-11 A spanner for dismouting earth bolt

Publications (1)

Publication Number Publication Date
CN111571503A true CN111571503A (en) 2020-08-25

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ID=72121765

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010531611.4A Pending CN111571503A (en) 2020-06-11 2020-06-11 A spanner for dismouting earth bolt

Country Status (1)

Country Link
CN (1) CN111571503A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60024509D1 (en) * 1999-02-08 2006-01-12 Black & Decker Inc wrench
CN104999398A (en) * 2014-04-22 2015-10-28 贾志侠 Cross-shaped socket spanner
CN205383146U (en) * 2016-01-07 2016-07-13 胡清桂 Screw fixed knot constructs with locating pin and locating hole
CN206317023U (en) * 2016-10-24 2017-07-11 奇瑞汽车股份有限公司 Wheel wrench
CN207326847U (en) * 2017-09-22 2018-05-08 常熟通润汽车零部件股份有限公司 Multifunctional handle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE60024509D1 (en) * 1999-02-08 2006-01-12 Black & Decker Inc wrench
CN104999398A (en) * 2014-04-22 2015-10-28 贾志侠 Cross-shaped socket spanner
CN205383146U (en) * 2016-01-07 2016-07-13 胡清桂 Screw fixed knot constructs with locating pin and locating hole
CN206317023U (en) * 2016-10-24 2017-07-11 奇瑞汽车股份有限公司 Wheel wrench
CN207326847U (en) * 2017-09-22 2018-05-08 常熟通润汽车零部件股份有限公司 Multifunctional handle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
李媛媛,王萌: "《机械设计》", 31 August 2019, 华中科技大学出版社 *

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Application publication date: 20200825

RJ01 Rejection of invention patent application after publication