CN101947685A - Heat insulated electric welding pliers - Google Patents
Heat insulated electric welding pliers Download PDFInfo
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- CN101947685A CN101947685A CN2010105230444A CN201010523044A CN101947685A CN 101947685 A CN101947685 A CN 101947685A CN 2010105230444 A CN2010105230444 A CN 2010105230444A CN 201010523044 A CN201010523044 A CN 201010523044A CN 101947685 A CN101947685 A CN 101947685A
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- connecting piece
- metal connecting
- moving spring
- copperhead
- handle
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Abstract
The invention provides a pair of electric welding pliers, belonging to electric welding technical field, and solving the problems that the existing electric welding pliers are easy to scald hands, a spring is easy to damage and the like. The heat insulated electric welding pliers comprise a hand shank, a handle and a metal connecting piece arranged at the front end of the hand shank, wherein, the metal connecting piece is in transmission connection with the handle through a pin shaft; the handle and the metal connecting piece are respectively provided with an upper copper head and a lower copper head; blocking components which are made of an insulated and thermal insulation material are arranged on the metal connecting piece and the surface of the lower copper head in a surrounding manner; and the blocking component and the metal connecting piece are independent and are connected through a dismountable connecting structure. The electric welding pliers of the invention have the advantages that a baffle plate and a reset spring insulation component are adopted to insulate heat; and the clearance between the metal connecting piece and the reset spring insulation component reduces direct heat transmission area between the metal connecting piece and the reset spring insulation component, thus preventing that the reset spring is damaged by heating, and prolonging the service life of the reset spring and the electric welding pliers.
Description
Technical field
The invention belongs to the electric welding technical field, relate to a kind of welding tool, particularly a kind of heat insulation type electrode holders.
Background technology
Present electrode holders, its metal connecting piece, following copperhead insulating boot, following copperhead all are independent accessories, not only installation procedure is many and loaded down with trivial details; And accessory is many, the assembly cost height.
Back-moving spring or be arranged on the electric conductor, or be arranged on down on the copperhead, or be arranged on the metal connecting piece; So, the not only charged but also heat transfer of existing back-moving spring.Electrode holders are when work, and the temperature of back-moving spring can be very high, anneals easily, make the elastic force of back-moving spring impaired, last copperhead and handle reset not in place, finally cause copperhead and following copperhead welding rod can not be clamped, produce electric arc during electric welding, influence the service life of electrode holders.
In order to prolong the service life of back-moving spring, people expect to overcome the problems referred to above by the intensity that increases back-moving spring.But so, after the bearing pin that connects handle and metal connecting piece is subjected to thermal softening, and the intensity of back-moving spring is excessive, but causes bearing pin to disconnect easily handle is flicked.
Another kind method is that a spring shim is set on electric conductor, allows spring withstand on the spring shim, and the heat of electric conductor can be directly delivered on the spring.Yet because electrode holders are in when work, the extreme temperatures of electric conductor, spring shim is heat damage very easily, and therefore this method can not shield to spring for a long time.
When back-moving spring was arranged on the electric conductor, it is very long that the length of electric conductor need be done, and the degree of depth that extend in the handle is darker, and handle also can be therefore more hot.
Summary of the invention
The objective of the invention is at the existing the problems referred to above of existing electrode holders, and proposed a kind of safe and reliable, non-scald on hand, and assemble simple electrode holders.
Purpose of the present invention can realize by following technical proposal: a kind of heat insulation type electrode holders, comprise handle, handle and the metal connecting piece that is arranged on the handle front end, be rotationally connected by bearing pin between described metal connecting piece and the handle, be set with copperhead and following copperhead on handle and the metal connecting piece respectively, described upward copperhead and the corresponding matching setting in opposite directions of following copperhead, also be provided with resetting-mechanism between handle and the handle, it is characterized in that, the surface of described metal connecting piece and following copperhead is surrounded with a block piece that adopts the heat-barrier material that insulate to make, and is separate and link together by the structure that removably connects between described block piece and the metal connecting piece.
Form jaw between last copperhead and the following copperhead, electrode holders are when work, and block piece can play better insulation heat-blocking action, and is safe and reliable, non-scald on hand.Usually block piece is made by injection molding process, metal connecting piece and following copperhead are then made for metal material, the material of metal connecting piece and block piece is different, be difficult for linking together, therefore adopt the structure that removably connects to connect, make the assembling between metal connecting piece and the block piece become simple.
As preferably, the described structure that removably connects comprises the installing hole that is opened on the metal connecting piece and the locating hole on the block piece, locating hole and installing hole are corresponding one by one to be provided with, and is equipped with the connector that block piece and metal connecting piece are fixed together in corresponding a pair of locating hole that is provided with and the installing hole.Connector passes locating hole and installing hole successively, and block piece and metal connecting piece are linked together securely.
As preferably, described resetting-mechanism comprises back-moving spring and is arranged on back-moving spring insulating part on the block piece, described back-moving spring is arranged on the opposite side of bearing pin with respect to last copperhead, and the two ends of back-moving spring are resisted against respectively on handle and the back-moving spring insulating part.The winding by hand bearing pin is rotated opening with closed of control jaw, and when jaw opened, back-moving spring was compressed, and after waiting to act on active force on the handle and cancelling, back-moving spring drives the handle reseting movement, makes the jaw closure.The back-moving spring insulating part insulate back-moving spring and following copperhead and metal connecting piece and opens, and makes it not charged and is difficult for hotly, guarantees that the user can not get an electric shock, can not scalded.
As preferably, there is the gap between described back-moving spring insulating part and the metal connecting piece.So, do not have direct hot pipeline between metal connecting piece and the back-moving spring insulating part or reduced contact area, most heats are to transmit by the heat radiation of metal connecting piece, and heat-transfer effect reduces greatly.
As preferably, described back-moving spring insulating part is curved, and the concave surface of back-moving spring insulating part is towards metal connecting piece.
As preferably, described back-moving spring insulating part adopts the insulation heat-barrier material to make and be in one-piece connection with block piece equally.
As preferably, described back-moving spring insulating part is provided with the locating piece of protrusion, and an end of above-mentioned back-moving spring is socketed on this locating piece and the end is resisted against on the back-moving spring insulating part.Locating piece extend in the back-moving spring, prevents the back-moving spring skew.
As preferably, offer pit on the described back-moving spring insulating part, an end card of above-mentioned back-moving spring is trapped in this pit.One end of back-moving spring leans in pit, can not be offset.
As preferably, described resetting-mechanism is a torsion spring.
As preferably, be equipped with the projection of protrusion on described metal connecting piece and/or the following copperhead, corresponding one by one being provided with can have the shoulder block that can stop metal connecting piece to separate with following copperhead for the sunken bayonet socket of above-mentioned corresponding projection card on described copperhead down and/or the metal connecting piece on the projection.Metal connecting piece and following copperhead be expanded by heating when work, and projection makes that to expanding the snapping relation between projection and the bayonet socket becomes more tight all around.
As preferably, the corresponding one by one bayonet socket that can fall into for above-mentioned projection card that is provided with have the shoulder block that can stop metal connecting piece to separate with following copperhead on the metal connecting piece on the projection.
Projection closely links together metal connecting piece and following copperhead after correspondence is connected in the corresponding bayonet socket one by one, and the while shoulder block plays the snapping effect, prevents that metal connecting piece from separating with following copperhead.
As preferably, described metal connecting piece and following copperhead fasten the back mutually and form a cavity, the corresponding matching setting and along the junction setting of metal connecting piece and following copperhead one by one of above-mentioned projection and bayonet socket.Cable can stretch to from the afterbody of handle in the cavity, electrically connects with following copperhead.
As preferably, described projection is T-shape.
As preferably, the syndeton of described metal connecting piece and following copperhead is suppressed by mould and is formed.
As preferably, describedly go up copperhead and following copperhead adopts copper product to be made, and metal connecting piece employing iron material is made.
Compared with prior art, this heat insulation type electrode holders adopt shutter and back-moving spring insulating part to carry out heat insulation, there is the gap between metal connecting piece and the back-moving spring insulating part, reduced direct area of heat transfer between the two, prevent the back-moving spring heat damage, prolonged the service life of back-moving spring and electrode holders.In addition, back-moving spring does not need to act directly on the metal connecting piece, so the length of metal connecting piece can shorten greatly, and the handgrip part of operating personnel on handle can be far away from pyrotoxin, and handle can not scalded one's hand.Be connected by the structure that simply removably connects between shutter and the metal connecting piece, assembling is simple, can also change parts in good time.Metal connecting piece adopts iron material to make, and has saved the consumption of copper, reduces production costs.
Description of drawings
Fig. 1 is the structural representation of this heat insulation type electrode holders.
Fig. 2 is the exploded view of Fig. 1.
Fig. 3 is the perspective view of block piece.
Fig. 4 is the perspective view after metal connecting piece and following copperhead are assembled together.
Fig. 5 is the cutaway view of Fig. 4.
Among the figure, 1, handle; 2, handle; 3, block piece; 31, locating hole; 32, back-moving spring insulating part; 32a, locating piece; 4, back-moving spring; 5, metal connecting piece; 51, installing hole; 6, go up copperhead; 7, following copperhead; 8, bearing pin; 9, projection; 91, shoulder block; 10, bayonet socket; 11, screw.
The specific embodiment
Below be specific embodiments of the invention and in conjunction with the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
As depicted in figs. 1 and 2, this heat insulation type electrode holders comprise handle 1, handle 2 and the metal connecting piece 5 that is arranged on handle 1 front end, and metal connecting piece 5 is with electrode holders handle 2, handle 1, copperhead 7 links together and the member of fixedly connected cable down.Be rotationally connected by bearing pin 8 between described metal connecting piece 5 and the handle 2, be set with copperhead 6 and following copperhead 7 on handle 2 and the metal connecting piece 5 respectively, last copperhead 6 and the corresponding matching setting in opposite directions of following copperhead 7, also be provided with resetting-mechanism between handle 1 and the handle 2, the surface of metal connecting piece 5 and following copperhead 7 is surrounded with a block piece 3 that adopts the insulation heat-barrier material to make.In the present embodiment, resetting-mechanism is back-moving spring 4 and is arranged on back-moving spring insulating part 32 on the block piece 3.Have the gap between metal connecting piece 5 and the back-moving spring insulating part 32, metal connecting piece 5 links together by screw 11 and handle 1.
As shown in Figure 3, back-moving spring insulating part 32 is in one-piece connection with block piece 3, and also be provided with a locating piece 32a who protrudes on the back-moving spring insulating part 32, an end of back-moving spring 4 is socketed on this locating piece 32a and the end is resisted against on the back-moving spring insulating part 32, and the other end is resisted against on the handle 2.Back-moving spring insulating part 32 is circular arc, and locating piece 32a is arranged on the convex surface of back-moving spring insulating part 32, and the concave surface of back-moving spring insulating part 32 is then towards metal connecting piece 5.
As shown in Figure 4, be equipped with the projection of giving prominence to the other side 9 on following copperhead 7 and the metal connecting piece 5, metal connecting piece 5 and following copperhead 7 then all have can be for the sunken bayonet socket 10 of the other side's projection 9 cards.In the present embodiment, the both sides of each projection 9 all have a shoulder block 91, and shoulder block 91 is integral structure with projection 9, makes projection 9 be T-shape.Following copperhead 7 adopts copper product to be made, and metal connecting piece 5 adopts iron material to be made, and metal connecting piece 5 and following copperhead 7 expanded by heating when work, projection 9 make that to expanding the snapping relation between projection 9 and the bayonet socket 10 becomes more tight all around.
The afterbody of metal connecting piece 5 is " U " type groove shape.Metal connecting piece 5 can not contact with back-moving spring insulating part 32, can reduce the heat transmission of metal connecting piece 5 to back-moving spring insulating part 32 so to greatest extent.Another kind of scheme is exactly that metal connecting piece 5 contacts with back-moving spring insulating part 32, but reduces both contacts area.In the present embodiment, back-moving spring insulating part 32 is circular arc, when the exhausted insulating part 32 of metal connecting piece 5 and back-moving spring contacts, also only has two sides of metal connecting piece 5 " U " type groove to contact with back-moving spring insulating part 32.
As shown in Figure 5, offer on the metal connecting piece 5 if three are offered threaded installing hole 51, block piece 3 corresponding positions then offer locating hole 31, and connector after passing locating hole 31 and installing hole 51 successively links together metal connecting piece 5 and block piece 3.The cable holding screw can pass two the larger-size installing holes 51 in both sides can be with the cable roof pressure at following copperhead 7.
Form the work jaw between last copperhead 6 and the following copperhead 7, handle 2 rotates opening with closed of control jaw around bearing pin 8.When jaw opened, back-moving spring 4 was compressed, and after waiting to act on active force on the handle 2 and cancelling, back-moving spring 4 drives handles 2 reseting movements, makes the jaw closure.Electrode holders are when work, and block piece 3 can play better insulation heat-blocking action, and is safe and reliable, non-scald on hand.Back-moving spring 4 has been resisted against on the back-moving spring insulating part 32 simultaneously, guarantees that the user can not get an electric shock, can not scalded.In the present embodiment, block piece 3 and back-moving spring insulating part 32 all adopt plastic material to process by Shooting Technique.
Except on back-moving spring insulating part 32, being provided with locating piece 32a positions back-moving spring 4, can also reach effect same by on back-moving spring insulating part 32, offering concave sections.
Claims (10)
1. heat insulation type electrode holders, comprise handle (1), handle (2) and the metal connecting piece (5) that is arranged on handle (1) front end, be rotationally connected by bearing pin (8) between described metal connecting piece (5) and the handle (2), be set with copperhead (6) and following copperhead (7) on handle (2) and the metal connecting piece (5) respectively, described upward copperhead (6) and following copperhead (7) corresponding matching setting in opposite directions, also be provided with resetting-mechanism between handle (1) and the handle (2), it is characterized in that, the surface of described metal connecting piece (5) and following copperhead (7) is surrounded with a block piece (3) that adopts the insulation heat-barrier material to make, and is separate and link together by the structure that removably connects between described block piece (3) and the metal connecting piece (5).
2. a kind of heat insulation type electrode holders according to claim 1, it is characterized in that, the described structure that removably connects comprises the installing hole (51) that is opened on the metal connecting piece (5) and the locating hole (31) on the block piece (3), locating hole (31) and installing hole (51) are corresponding one by one to be provided with, and is equipped with the connector that block piece (3) and metal connecting piece (5) are fixed together in corresponding a pair of locating hole (31) that is provided with and the installing hole (51).
3. a kind of heat insulation type electrode holders according to claim 1 and 2, it is characterized in that, described resetting-mechanism comprises back-moving spring (4) and is arranged on back-moving spring insulating part (32) on the block piece (3), described back-moving spring (4) is arranged on the opposite side of bearing pin (8) with respect to last copperhead (6), and the two ends of back-moving spring (4) are resisted against respectively on handle (2) and the back-moving spring insulating part (32).
4. a kind of heat insulation type electrode holders according to claim 3 is characterized in that, have the gap between described back-moving spring insulating part (32) and the metal connecting piece (5).
5. a kind of heat insulation type electrode holders according to claim 4 is characterized in that described back-moving spring insulating part (32) is curved, and the concave surface of back-moving spring insulating part (32) is towards metal connecting piece (5).
6. a kind of heat insulation type electrode holders according to claim 3 is characterized in that, the same employing insulation of described back-moving spring insulating part (32) heat-barrier material is made and is in one-piece connection with block piece (3).
7. a kind of heat insulation type electrode holders according to claim 3, it is characterized in that, described back-moving spring insulating part (32) is provided with the locating piece (32a) of protrusion, and an end of above-mentioned back-moving spring (4) is socketed on this locating piece (32a) and the end is resisted against on the back-moving spring insulating part (32).
8. a kind of heat insulation type electrode holders according to claim 1 and 2, it is characterized in that, be equipped with the projection (9) of protrusion on described metal connecting piece (5) and/or the following copperhead (7), on described down copperhead (7) and/or the metal connecting piece (5) one by one correspondence be provided with the bayonet socket (10) that can fall into for above-mentioned corresponding projection (9) card, have the shoulder block (91) that can stop metal connecting piece (5) to separate on the projection (9) with following copperhead (7).
9. a kind of heat insulation type electrode holders according to claim 8, it is characterized in that, on the metal connecting piece (5) one by one correspondence be provided with the bayonet socket (10) that can fall into for above-mentioned projection (9) card, have the shoulder block (91) that can stop metal connecting piece (5) to separate on the projection (9) with following copperhead (7).
10. a kind of heat insulation type electrode holders according to claim 8 is characterized in that, described upward copperhead (6) and following copperhead (7) adopt copper product to be made, and metal connecting piece (5) adopts iron material to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105230444A CN101947685A (en) | 2010-10-28 | 2010-10-28 | Heat insulated electric welding pliers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105230444A CN101947685A (en) | 2010-10-28 | 2010-10-28 | Heat insulated electric welding pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101947685A true CN101947685A (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105230444A Pending CN101947685A (en) | 2010-10-28 | 2010-10-28 | Heat insulated electric welding pliers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101947685A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978295A (en) * | 2014-05-28 | 2014-08-13 | 重庆兰花电焊钳制造有限公司 | Non-scalding electric welding pliers |
| CN114951927A (en) * | 2022-07-29 | 2022-08-30 | 张家港史帝曼五金制品有限公司 | Scald-proof electric welding tongs |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB592004A (en) * | 1944-10-23 | 1947-09-04 | Gen Electric Co Ltd | Improvements in electrode holders for use in arc welding |
| CN2252675Y (en) * | 1995-11-10 | 1997-04-23 | 丁永香 | Hand electric arc welding tongs |
| CN201253729Y (en) * | 2008-08-14 | 2009-06-10 | 金晓军 | Electrode holders |
| CN101462198A (en) * | 2009-01-15 | 2009-06-24 | 冯羡楹 | Electrode holder |
| CN201264141Y (en) * | 2008-10-13 | 2009-07-01 | 冯建清 | Metal connecting component of electric welding tongs and electric welding tongs |
| CN201841349U (en) * | 2010-10-28 | 2011-05-25 | 冯羡楹 | Heat-insulating electric welding pliers |
-
2010
- 2010-10-28 CN CN2010105230444A patent/CN101947685A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB592004A (en) * | 1944-10-23 | 1947-09-04 | Gen Electric Co Ltd | Improvements in electrode holders for use in arc welding |
| CN2252675Y (en) * | 1995-11-10 | 1997-04-23 | 丁永香 | Hand electric arc welding tongs |
| CN201253729Y (en) * | 2008-08-14 | 2009-06-10 | 金晓军 | Electrode holders |
| CN201264141Y (en) * | 2008-10-13 | 2009-07-01 | 冯建清 | Metal connecting component of electric welding tongs and electric welding tongs |
| CN101462198A (en) * | 2009-01-15 | 2009-06-24 | 冯羡楹 | Electrode holder |
| CN201841349U (en) * | 2010-10-28 | 2011-05-25 | 冯羡楹 | Heat-insulating electric welding pliers |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103978295A (en) * | 2014-05-28 | 2014-08-13 | 重庆兰花电焊钳制造有限公司 | Non-scalding electric welding pliers |
| CN114951927A (en) * | 2022-07-29 | 2022-08-30 | 张家港史帝曼五金制品有限公司 | Scald-proof electric welding tongs |
| CN114951927B (en) * | 2022-07-29 | 2022-10-28 | 张家港史帝曼五金制品有限公司 | Scald-proof electric welding tongs |
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| PB01 | Publication | ||
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Application publication date: 20110119 |