CN105291028B - Pipe wrench structure - Google Patents
Pipe wrench structure Download PDFInfo
- Publication number
- CN105291028B CN105291028B CN201510737452.2A CN201510737452A CN105291028B CN 105291028 B CN105291028 B CN 105291028B CN 201510737452 A CN201510737452 A CN 201510737452A CN 105291028 B CN105291028 B CN 105291028B
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- China
- Prior art keywords
- pivot portion
- conjunction
- clamping block
- block
- pipe wrench
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- 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.)
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Classifications
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- 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
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
- B25B13/5025—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool
- B25B13/5041—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool with movable or adjustable jaws
- B25B13/505—Pivotally moving or adjustable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention relates to the field of wrenches and discloses a pipe wrench structure. The pipe wrench structure comprises a body (10). The body (10) is provided with first turning faces (2) and first concave edges (13). The portion, away from a first pivot portion (11), of the body (10) is provided with a second concave edge (14). The portion, close to the second concave edge (14), of the end of the body (10) is provided with a first cambered surface (15). A first elastic element containing groove (16) is formed in the body (10) and close to the first pivot portion (11) and is in a round hole groove shape. The portion, close to the first pivot portion (11), of the body (10) is provided with a first abutting edge (17). A pivot end (8) is arranged at one end of the body (10) and away from the first cambered surface (15). The pipe wrench structure can achieve the function of a traditional pipe wrench and is capable of nesting and separating threaded combination parts more easily compared with the traditional pipe wrench, and the working efficiency of users is improved.
Description
Technical field
The present invention relates to spanner field, a kind of more particularly, to pipe wrench structure.
Background technology
Pipe wrench of the prior art, as shown in the United States Patent (USP) of Patent No. us4967612, body is fixed with pivot
If block, in the block that is pivoted, it is provided with the fit portion for fit screw piece.
This pipe wrench major function be: body is provided with the block that is pivoted, as shown in figure 3, the block that is pivoted being capable of fit spiral shell
After component again closing on body, as shown in figure 1, such pipe wrench just turn can be arranged on the screw piece on pipe wrench.But
The shortcoming of this patent structure is:
Refer to Fig. 1 of this patent, 4 adjacent edge faces of this block that is pivoted all are coated on screw piece, pipe wrench turn one
After determining angle, this block that is pivoted needs to be separated with screw piece, after pipe wrench rotate counterclockwise certain angle, this be pivoted block and spiral shell
Component again after phase fit just can turn, that is, be pivoted between block and screw piece need repeatedly repeatedly to disengage, fit, increased turn
The man-hour of screw piece.
And for example United States Patent (USP) us6978701b1, shown in its Fig. 6 d, body also is provided with one and is pivoted block.But in this patent
Shortcoming is: refering to Fig. 6 d, 4 adjacent edge faces of this block that is pivoted also are coated on screw piece, that is, be pivoted between block and screw piece
Need multiple disengagement, fit repeatedly, increased the man-hour of turn screw piece, the same with patent us4967612.
Referring again to United States Patent (USP) us6978701b1, shown in Figure 12 a to 12g, which disclose a body, and thereon
Connector, the other end of this connector is provided with the block that is pivoted.But the shortcoming of this patent is:
1. refer to Figure 12 f in this patent, this figure is three-dimensional exploded view, connector is provided with the first lamellar body, the first lamellar body
On be convexly equipped with bipole body, the end of bipole body is combined with a first piece body phase, and it is to be difficult that bipole body is arranged on the first lamellar body
Processing, bipole body 78 needs to be respectively welded on the first lamellar body, nonetheless, the first lamellar body be difficult with reference in bipole body
End.First lamellar body should have latch closure to be fastened on bipole body, so that this first lamellar body is combined in bipole body end, but such knot
Constitute this very high.
2. refer to Figure 12 f, body is connected with connector, the connector other end is provided with the block that is pivoted, this three elements according to
The structure of secondary connection, has between connector and body and relatively rotates, and is pivoted and also has relative rotation between block and connector,
This complex structure that is pivoted.As shown in Figure 12 e, body, connector and being pivoted is pivoted when being pivoted successively between block three
Block is sent out displacement path and is relatively difficult to determine.
3. refer to Figure 12 c, 12b and 12a, as shown in fig. 12 c, if connector and body comparatively fast pivot return, this end
Place can be repositioned to a recess of body, as figure 12 a shows.Three structures that are pivoted therefore are had i.e. can in this pipe wrench structure
Produce this turn disappearance.
Content of the invention
In view of in above-mentioned prior art pipe wrench shortcoming, the manufacture based on relevant industries for many years for the present inventor and design warp
Test, finally develop an invention that can solve the problem that pipe wrench shortcoming in prior art.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
Pipe wrench structure, comprising:
Body, body is provided with the first pivot portion, and the first pivot portion is in run through circular hole channel-shaped, forms the between the first pivot portion and body
One holding part, body is provided with the first turn face and the first concave edge, and the first turn face is sequentially disposed adjacent with the first concave edge, and body is remote
It is provided with the second concave edge away from the first pivot portion, body end is provided with the first cambered surface at the second concave edge, body is provided with the first appearance bullet
Groove, this first appearance plays groove near the first pivot portion, and first holds bullet groove in circular hole channel-shaped, and body is provided with first at the first pivot portion and supports
Edge, body one end is provided with pivot end, and pivot end is away from the first cambered surface；
Combined block, combined block is located at the first holding part, and combined block is provided with the second pivot portion and the 3rd pivot portion, the second pivot
Portion is hinged in the first pivot portion of body, and the second pivot portion and the 3rd pivot portion are in all circular hole；
Clamping block, clamping block is provided with the 4th pivot portion, and the 4th pivot portion is hinged with the 3rd pivot portion on combined block, the 4th pivot portion
Form the second holding part, combined block is placed between the first holding part and the second holding part, and clamping block is provided with 2 between clamping block
Second turn face, this 2 first turn faces and 2 the second turn faces constitute hexagonal channel-shaped, are provided between two the second turn faces
3rd concave edge, this clamping block end is provided with the second end, and clamping block is additionally provided with the second appearance bullet groove, and second holds bullet groove system in circle
Hole slot shape, clamping block is provided with second and supports edge, and second supports edge and first supports edge against each other；
Flexible member, this flexible member one end butted in body first appearance play groove in, the flexible member other end butted in
Second appearance of clamping block plays in groove, and the elastic acting force of flexible member makes the second end of this clamping block be resisted against the first cambered surface
On.
Preferably, the thickness in the first pivot portion is the half of body thickness, shape between the upper and lower end in the first pivot portion and body
Become 2 the first holding parts, form 2 the second holding parts between the upper and lower end in clamping block the 4th pivot portion and clamping block, in conjunction with block number
Amount is also 2.
Preferably, the quantity of the first turn face and the first concave edge is 2, the first turn face is in concave arc shape, and second is recessed
Edge is in single arc shape.
Preferably, the second turn face is identical with the first turn face shape of body, the second turn face is in concave arc shape, second
End can import the second concave edge and be located in the second concave edge along the first cambered surface of body, and this second end is in single arc
Shape.
Preferably, clamping block one end is provided with pulling part, pulling part pulls clamping block for user.
Preferably, also including: the first conjunction, the first conjunction through the second pivot portion of combined block, the first pivot portion,
First conjunction is in female thread shape；
Second conjunction, the second conjunction is screwed with the first conjunction, and the second conjunction is in external screw thread shape；
3rd conjunction, the 3rd conjunction runs through the 3rd pivot portion, the 4th pivot portion and the 3rd pivot portion of combined block, the 3rd combination
Part is in female thread shape；
4th conjunction, the 4th conjunction and the 3rd conjunction screw togather, and the 4th conjunction is in external screw thread shape；
Preferably, the first conjunction and the second conjunction are screwed and the 3rd conjunction and the mutual spiral shell of the 4th conjunction
After conjunction, the first pivot portion of body and the second pivot portion of combined block are hinged with the 3rd pivot portion of combined block and the 4th pivot portion of clamping block
Connect.
Preferably, also including a shank body, the two ends of shank body have been respectively articulated with a body.
The present invention can not only realize the function of traditional pipe wrench, more easily cover compared to traditional pipe wrench simultaneously
Splitting or integrating, from screw piece, improves the work efficiency of user.
Brief description
Fig. 1 is the three-dimensional exploded view of the present invention.
Fig. 2 is the axonometric chart of clamping member in the present invention.
Fig. 3 is the three-dimensional combination figure of the present invention.
Fig. 4 is the side view of the present invention.
Fig. 5 is the sectional view at a-a in Fig. 4.
Fig. 6 is the mode of operation figure of the present invention.
Fig. 7 is the top view that the present invention retreats counterclockwise.
Fig. 8 is the top view of another mode of operation of the present invention.
Fig. 9 is the axonometric chart of the embodiment of the present invention 2.
Specific embodiment
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
As shown in Figure 1 and Figure 2, Fig. 1 is the three-dimensional exploded view of the present invention, and Fig. 2 is the axonometric chart of clamping member 40 in the present invention,
The present invention is with regard to a kind of pipe wrench.Comprising:
Body 10, this body 10 is provided with the first pivot portion 11, and the thickness in this first pivot portion 11 is about the half of body 10 thickness,
First pivot portion 11 is in run through circular hole channel-shaped, and the difference of height between the first pivot portion 11 upper and lower side and body 10 forms 2 first and houses
Portion 111,2 the first holding parts with respect to the first pivot portion 11 symmetrically shape, body 10 is provided with 2 the first turn faces 12 and 2
First concave edge 13, the first turn face 12 is sequentially disposed adjacent with the first concave edge 13, and the first turn face 12 is in concave arc shape, and body 10 is remote
It is provided with the second concave edge 14 away from the first pivot portion 11, the second concave edge 14 is in single arc shape, this second concave edge 14 and the first concave edge 13
Shape different, body 10 end is provided with the first cambered surface 15 at the second concave edge 14, and body 10 is provided with the first appearance bullet groove 16, should
First holds bullet groove 16 near the first pivot portion 11, and first holds bullet groove 16 in circular hole channel-shaped, and body 10 is provided with the first pivot portion 11
First supports edge 17, and first supports edge 17 holds bullet groove 16 near first, and body 10 one end is provided with pivot end 18, and pivot end 18 is away from the first cambered surface
15；
2 combined blocks, each combined block 20 is located at the first holding part 111, and this two basic change block 20 is with regard to the first pivot
Portion 11 is symmetrical, and this combined block 20 is provided with the second pivot portion 21 and the 3rd pivot portion 22, and the second pivot portion 21 is hinged on the first of body 10
Pivot portion 11, the second pivot portion 21 and the 3rd pivot portion 22 are in all circular hole, and the second pivot portion 21 is identical with the diameter in the 3rd pivot portion 22；
First conjunction 31, the first conjunction 31 is through the second pivot portion 21 of combined block 20, the first pivot portion 11, the first knot
Component 31 is in female thread shape；
Second conjunction 32, the second conjunction 32 is screwed with the first conjunction 31, and the second conjunction 32 is in external screw thread shape；
Clamping block 40, this clamping block 40 is provided with the 4th pivot portion 41, the 3rd pivot portion in the 4th pivot portion 41 and combined block 20
22 is hinged, and the thickness in the 4th pivot portion 41 is about the half of clamping block 40 thickness, the upper and lower side in the 4th pivot portion 41 and clamping block 40 it
Between form the second holding part 411, this 2 the second holding parts 411 are symmetrical with respect to the 4th pivot portion 41, and each combined block 20 is placed in
Between first holding part 111 and the second holding part 411, clamping block 40 is provided with 2 the second adjacent turn faces 42, this 2 first
Turn face 12 and 2 the second turn faces 42 constitute hexagonal channel-shaped, the first turn face 12 shape of the second turn face and body 10
Identical, the second turn face 42 is in concave arc shape, is provided with the 3rd concave edge 43, this clamping block 40 end sets between two the second turn faces 42
Have the second end 44, the 4th cambered surface 44 away from the 4th pivot portion 41 at, the second end 44 can be led along the first cambered surface 15 of body 10
Enter the second concave edge 14 and be located in the second concave edge 14, this second end 44 is in single arc shape, is provided with nearly 4th pivot portion 41
Second appearance bullet groove 45, the second appearance bullet groove 45 is relative just with the first appearance bullet groove 16, and the second appearance bullet groove 45 is this blocking in circular hole channel-shaped
Block 40 one end is provided with pulling part 46 and is available for users to pulls, and this pulling part 46 and the second end 44 are away from body 10 is provided with
Two support edge 47, and second supports edge 47 and first supports edge 17 against each other, and second supports edge 47 plays at groove 45 close to the second appearance；
3rd conjunction 33, the 3rd conjunction 33 runs through the 3rd pivot portion 22, the 4th pivot portion 41 and the 3rd pivot of combined block 20
Portion 22, the 3rd conjunction 33 is in female thread shape；
4th conjunction 34, the 4th conjunction 34 and the 3rd conjunction 33 screw togather, and the 4th conjunction 34 is in external screw thread shape；
First conjunction 31 is screwed with the second conjunction 32 and the 3rd conjunction 33 is mutually screwed togather with the 4th conjunction 34
Afterwards, the 4th of the second pivot portion 21 of the first pivot portion 11 of body 10 and combined block 20 and the 3rd pivot portion of combined block and clamping block 40
Pivot portion is articulated and connected；
Flexible member 50, butted the first appearance in body 10 in this flexible member 50 one end plays in groove 16, and flexible member 50 is another
Butted the second appearance in clamping block 40 in one end plays in groove 45, and the elastic acting force of flexible member 50 makes the second end of this clamping block 40
Portion 44 is located in the first cambered surface 15.
Please continue to refer to Fig. 3 to Fig. 5, Fig. 3 is the three-dimensional combination figure of the present invention, and Fig. 4 is the side view of the present invention, and Fig. 5 is
Sectional view at a-a in this Fig. 4, as seen from the figure, when body 10, clamping block 20, the first conjunction 31, the second conjunction 32,
After three conjunctions 33, the 4th conjunction 34, clamping block 40 and flexible member 50 combination, that is, as shown in figure 3, each combined block 20
It is placed on the first holding part 111 of body 10 and the second holding part 411 of clamping block 40, this two the second pivot portions 21 and body
10 the first pivot portion 11 is hinged, and two the 3rd pivot portions 22 are hinged with the 4th pivot portion 41 of clamping block 40, the first conjunction 31
Run through in setting and the first pivot portion 11 and the second pivot portion 21, the 3rd conjunction 33 runs through setting and the 3rd pivot portion 22 and the 4th pivot
In portion 41, after the first conjunction 31 and the 3rd conjunction 33 are mutually screwed togather with the second conjunction 32 and the 4th conjunction respectively, make
The 3rd pivot portion 22 in the second pivot portion 21 and combined block 20 in first pivot portion 11 of this body 10 and combined block 20 and clamping block
On the 4th pivot portion 41 all hinged, and this body 10 and clamping block 40 limited with combined block 20, the first conjunction 31, second be combined
Part 32, the 3rd conjunction 33 and the 4th conjunction 34 and cannot mutually disengage.The second end 44 of this clamping block 40 is along body 10
First cambered surface 15 imports in the second concave edge 14 and is installed with the inner, and this second supports edge 47 and abut against in body 10 first to edge 17
On, butted the first appearance in body 10 in one end of this flexible member 50 plays in groove 16, this flexible member 50 other end butted in card
Second appearance of clamp dog 40 plays in groove 45, makes this clamping block 40 and body 10 phase elastic hinge joint.
Please continue to refer to Fig. 6, Fig. 6 is the top view of the present invention, it can be seen that the elastic acting force of flexible member 50,
Clamping block 40 is made to be connivent on body 10, the common turn in a turn face 42 of a turn face of body 10 12 and clamping block 40
On four sides face of screw piece 60, one of two first concave edge 13 are used for housing the three of screw piece 60 with the 3rd concave edge 43
Individual angle end, so can turn screw piece 60 clockwise.
Please continue to refer to Fig. 7, Fig. 7 is top view during rotate counterclockwise of the present invention, it can be seen that working as body 10 inverse time
When pin rotates, it is that elasticity is pivoted shape between body 10 and clamping block 40, the angle end of screw piece 60 can back down the second of clamping block 40
Turn face 42, when this clamping block 40 be gradually distance from body 10, this body 10 and clamping block 40 freely can turn on screw piece 60
Dynamic, after this body 10 reverses an angle, this pipe wrench can turn screw piece 60 again.
Please continue to refer to Fig. 8, Fig. 8 is the top view of another use state of the present invention, it can be seen that user can use handss
Pulling the pulling part 46 on clamping block 40 overcomes the elastic force of flexible member 50 to pull open clamping block 40, a turn of this body 10
Face 12 is reliable to be butted on two sides face of screw piece 60, then decontrols pulling part 46, and the elastic force of this flexible member 50 makes this clamping block
On 40 closings and body 10, i.e. turn screw piece 60 as shown in Figure 6.
Embodiment 2
As shown in figure 9, Fig. 9 is the axonometric chart of the present embodiment, shown in figure, it is provided with a shank body 70, the two ends of shank body 70
Mutually it is pivoted with the pivot end 18 on body 10 respectively, namely shank body 70 combines two bodies 10, or this shank body 70 one end is ratchet wrench
Portion, the head at Flos Mume end, opening or various hand-held tool at hand, this shank 70 other end is connected with another body 10.
In a word, the foregoing is only presently preferred embodiments of the present invention, all equalizations made according to scope of the present invention patent
Change and modification, all should belong to the covering scope of patent of the present invention.
Claims (6)
1. pipe wrench structure is it is characterised in that include:
Body (10), body (10) is provided with the first pivot portion (11), the first pivot portion (11) be in circular hole channel-shaped, the first pivot portion (11) with this
Form the first holding part (111), body (10) is provided with the first turn face (12) and the first concave edge (13), the first rotation between body (10)
Dynamic face (12) is disposed adjacent with the first concave edge (13), and body (10) is provided with the second concave edge (14) away from first pivot portion (11) one end,
Body (10) end is provided with the first cambered surface (15) near the second concave edge (14) place, and body (10) is provided with the first appearance bullet groove (16),
First holds bullet groove (16) in circular hole channel-shaped, body (10) is additionally provided with first and supports edge (17), body (10) is away from the first cambered surface
(15) one end is provided with pivot end (18)；
Combined block (20), combined block (20) is located in the first holding part (111), combined block (20) be provided with the second pivot portion (21) with
And the 3rd pivot portion (22), the second pivot portion (21) is hinged in the first pivot portion (11) of body (10), the second pivot portion (21) and the 3rd
Pivot portion (22) is in all circular hole；
Clamping block (40), clamping block (40) is provided with the 4th pivot portion (41), the 3rd in the 4th pivot portion (41) and combined block (20)
Pivot portion (22) is hinged, forms the second holding part (411) between the 4th pivot portion (41) and clamping block (40), and combined block (20) is placed in
Between first holding part (111) and the second holding part (411), clamping block (40) is provided with 2 the second turn faces (42), the first turn
Face (12) constitutes hexagonal channel-shaped with the second turn face (42), is provided with the 3rd concave edge (43), clamping block between 2 the second turn faces (42)
(40) it is provided with the second end (44), clamping block (40) is additionally provided with the second appearance bullet groove (45), second holds bullet groove (45) in circle hole groove
Shape, clamping block (40) is provided with second and supports edge (47), and second supports edge (47) supports edge (17) against each other with first；
Flexible member (50), butted the first appearance in body (10) in this flexible member (50) one end plays in groove (16), flexible member
(50) butted the second appearance in clamping block (40) of the other end plays in groove (45), and the elastic acting force of flexible member (50) makes this blocking
The second end (44) of block (40) is resisted against in the first cambered surface (15)；
Also include a shank body (70), the two ends of shank body (70) have been respectively articulated with a body (10).
2. pipe wrench structure according to claim 1 it is characterised in that: the thickness in the first pivot portion (11) is that body (10) is thick
The half of degree, forms 2 the first holding parts (111), clamping block (40) between the upper and lower end in the first pivot portion (11) and body (10)
The upper and lower end in the 4th pivot portion (41) and clamping block (40) between formed 2 the second holding parts (411), combined block (20) quantity
It is also 2.
3. pipe wrench structure according to claim 2 it is characterised in that: the first turn face (12) and the first concave edge (13)
Quantity is 2, and the first turn face (12) are in concave arc shape, and the second concave edge (14) is in single arc shape.
4. pipe wrench structure according to claim 1 it is characterised in that: the first of the second turn face (42) and body (10)
Turn face (12) shape is identical, and the second turn face (42) are in concave arc shape, and the second end (44) can be along the first arc of body (10)
Face (15) imports the second concave edge (14) and is located in the second concave edge (14), and the second end (44) is in single arc shape.
5. pipe wrench structure according to claim 1 it is characterised in that: clamping block (40) one end is provided with pulling part (46),
Pulling part (46) pulls clamping block (40) for user.
6. pipe wrench structure according to claim 1 is it is characterised in that also include: the first conjunction (31), the first combination
Part (31) runs through the first pivot portion (11) of the second pivot portion (21) of combined block (20), body (10), and the first conjunction (31) is in interior
Screw-like；
Second conjunction (32), the second conjunction (32) is screwed with the first conjunction (31), and the second conjunction (32) is in outer spiral shell
Stricture of vagina shape；
3rd conjunction (33), the 3rd conjunction (33) run through the 3rd pivot portion (22) of combined block (20), the of clamping block (40)
Four pivot portions (41), the 3rd conjunction (33) is in female thread shape；
4th conjunction (34), the 4th conjunction (34) and the 3rd conjunction (33) screw togather, and the 4th conjunction (34) is in external screw thread
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737452.2A CN105291028B (en) | 2015-11-03 | 2015-11-03 | Pipe wrench structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510737452.2A CN105291028B (en) | 2015-11-03 | 2015-11-03 | Pipe wrench structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105291028A CN105291028A (en) | 2016-02-03 |
| CN105291028B true CN105291028B (en) | 2017-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510737452.2A Active CN105291028B (en) | 2015-11-03 | 2015-11-03 | Pipe wrench structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105291028B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2691791Y (en) * | 2004-02-23 | 2005-04-13 | 李明星 | pipe wrench |
| CN100594099C (en) * | 2007-09-17 | 2010-03-17 | 史丹利七和国际股份有限公司 | Open spanner |
| CA2686026C (en) * | 2009-11-18 | 2014-01-07 | Robert John Terence Wojick | Self-clamping wrench |
| CN202684805U (en) * | 2012-06-20 | 2013-01-23 | 浙江亿洋工具制造有限公司 | Novel oil tube wrench |
| RU136759U1 (en) * | 2013-08-20 | 2014-01-20 | Михаил Наумович Дворецкий | TUBE KEY (OPTIONS) |
| CN205111703U (en) * | 2015-11-03 | 2016-03-30 | 浙江亿洋工具制造有限公司 | Pipe wrench structure |
-
2015
- 2015-11-03 CN CN201510737452.2A patent/CN105291028B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105291028A (en) | 2016-02-03 |
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