CN202846009U - Dustproof plug for direct current (DC) output port of contravariant DC arc welder - Google Patents

Dustproof plug for direct current (DC) output port of contravariant DC arc welder Download PDF

Info

Publication number
CN202846009U
CN202846009U CN201220433041.6U CN201220433041U CN202846009U CN 202846009 U CN202846009 U CN 202846009U CN 201220433041 U CN201220433041 U CN 201220433041U CN 202846009 U CN202846009 U CN 202846009U
Authority
CN
China
Prior art keywords
contravariant
output end
arc welder
end mouth
output port
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 - Lifetime
Application number
CN201220433041.6U
Other languages
Chinese (zh)
Inventor
曹再华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG JUBA WELDING EQUIPMENTS MANUFACTURING Co Ltd
Original Assignee
ZHEJIANG JUBA WELDING EQUIPMENTS MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG JUBA WELDING EQUIPMENTS MANUFACTURING Co Ltd filed Critical ZHEJIANG JUBA WELDING EQUIPMENTS MANUFACTURING Co Ltd
Priority to CN201220433041.6U priority Critical patent/CN202846009U/en
Application granted granted Critical
Publication of CN202846009U publication Critical patent/CN202846009U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Landscapes

  • Arc Welding In General (AREA)

Abstract

The utility model relates to a dustproof plug for a direct current (DC) output port of a contravariant DC arc welder and aims to provide the dustproof plug which can prevent the DC output port from being blocked by dust and has the advantages of being convenient to use and simple in structure. The technical scheme is that the dustproof plug for the DC output port of the contravariant DC arc welder is characterized in that the dustproof plug is composed of a knob head and a rod part which are connected into a whole, external threads matched with the DC output port are machined on the rod part, and a knob block is machined on the outer side of the knob head. The knob head and the rod part are made of plastics or iron. The knob head is round, and the diameter of the knob head is larger than the hole diameter of the DC output port. The knob block is bar-shaped or cross-shaped.

Description

A kind of dc output end mouth dust plug of contravariant DC arc welder
Technical field
The utility model relates to a kind of contravariant DC arc welder, specifically a kind of dust plug of the direct current weldingvoltage output port for the contravariant DC arc welder.
Background technology
The contravariant DC arc welder is a kind of common welding equipment, its operation principle is: three-phase main-frequency (50Hz) is exchanged networking voltage, first become direct current through input rectifier rectification and filtering, again by high power switch electronic component (IGCT SCR, transistor GTR, FET MOSFET or IGBT) the alternation switch effect, dc inversion after the rectification is become the midfrequent AC voltage of several kHz~tens kHz, and be down to tens volts of voltages that are suitable for welding through transformer, and then rectification and through reactance filtering output quite stably the direct current welding current (if directly weld with the alternating current after the inversion step-down, because its frequency is high, then induction reactance is large, cause that active power reduces greatly in the welding circuit, therefore, also need again carry out rectification).Its order change can be expressed as simply: industrial frequency AC (through rectifying and wave-filtering) → direct current (through inversion) → midfrequent AC (step-down, rectification, filtering) → direct current; If symbolically is: AC → DC → AC → DC.
The operating frequency of contravariant DC arc welder is high, compares with traditional arc-welding machine to have following characteristics: a. volume is little, quality is light, saves material, and is mobile, easy to carry; B. energy-efficient, efficient can reach 80%-90%, economizes on electricity more than 1/3 than traditional welding machine; C. dynamic characteristic is good, and striking is easy, arc stability, and appearance of weld is attractive in appearance, and it is little to splash; D. the welding parameter auto-adjustment control is convenient, is well suited for automatic welding; But a tractor serves several purposes e..
The working panel of conventional contravariant DC arc welder as shown in Figure 3, this working panel 7 is provided with display screen 6, control handle 5, radiator window 8 and one positive one negative two dc output end mouths 4, the dc output end mouth is positioned at the bottom of working panel; During work, the direct current input lead of welding machine docks with the dc output end mouth and is exportable weldingvoltage, and is easy to use.When welding machine leaves unused, generally can be with the separately rolling of direct current output lead, so just so that the dc output end mouth directly exposes outside (the dc output end mouth is generally red copper or brass is made), become easily infected by dust, especially true in the more factory building of dust and impurity, most of dc output end mouths are to dock by the DC plug of internal thread with electrode holders, ground connection pincers, if dust seriously can stop up internal thread, affect the normal use of electric conductivity and the welding machine of dc output end mouth.
Summary of the invention
The purpose of this utility model is the deficiency that overcomes in the above-mentioned background technology, a kind of dust plug of the dc output end mouth for the contravariant DC arc welder is provided, this dust plug should be able to avoid the dc output end mouth to be stopped up by dust, also should have characteristics easy to use, simple in structure.
The technical solution adopted in the utility model is: a kind of dc output end mouth dust plug of contravariant DC arc welder, it is characterized in that, described dust plug is comprised of the knob head that is connected and bar section, described bar section is shaped with the external screw thread with dc output end mouth coupling, and the outside of knob head is shaped with the knob piece.
Described knob head and bar section adopt plastics or iron work.
Described knob head is rounded, and diameter is greater than the aperture 6-10mm of dc output end mouth.
Described knob piece is bar shaped or cross.
The beneficial effects of the utility model are: the utility model screws in behind the dc output end mouth, and two dc output end mouths are blocked, and can stop dust and impurity enters, and guarantees the cleaning of dc output end mouth; The utility model is relatively simple for structure in addition, very easy to use and screw out after do not affect the normal operation of welding machine, production cost is also lower, has the marketing prospect.
Description of drawings
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the assembly structure figure of the utility model and dc output end mouth.
Fig. 3 is the structural representation of the working panel of contravariant DC arc welder.
The specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model is not limited to following examples.
As shown in Figure 1 and Figure 2, a kind of dc output end mouth dust plug of contravariant DC arc welder, it is characterized in that, described dust plug is comprised of the knob head 2 that is connected and bar section 1, described bar section is shaped with the external screw thread with dc output end mouth coupling, and the outside of knob head is shaped with knob piece 3, can clamp the knob piece with hand bar section is screwed in the dc output end mouth, the knob head is lived (the knob head is rounded, and diameter gets final product greater than the aperture 6-10mm of dc output end mouth) with the dc output end lid.Described knob head and bar section can adopt plastics or iron work.Described knob piece is bar shaped or cross.
In fact, the structure of this dust plug and conventional bolt are similar, the bar minister degree of dust plug need not to mate (for the dc output end mouth of minority without female thread structure with the hole depth of dc output end mouth, the screw thread of bar section can omit), as long as can stably screw in the dc output end mouth, and do not deviate to get final product, can save production cost.

Claims (4)

1. the dc output end mouth dust plug of a contravariant DC arc welder, it is characterized in that, described dust plug is comprised of the knob head (2) that is connected and bar section (1), and described bar section is shaped with the external screw thread with dc output end mouth coupling, and the outside of knob head is shaped with knob piece (3).
2. the dc output end mouth dust plug of a kind of contravariant DC arc welder according to claim 1 is characterized in that: described knob head and bar section employing plastics or iron work.
3. the dc output end mouth dust plug of a kind of contravariant DC arc welder according to claim 1 and 2, it is characterized in that: described knob head is rounded, and diameter is greater than the aperture 6-10mm of dc output end mouth.
4. the dc output end mouth dust plug of a kind of contravariant DC arc welder according to claim 3, it is characterized in that: described knob piece is bar shaped or cross.
CN201220433041.6U 2012-08-29 2012-08-29 Dustproof plug for direct current (DC) output port of contravariant DC arc welder Expired - Lifetime CN202846009U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220433041.6U CN202846009U (en) 2012-08-29 2012-08-29 Dustproof plug for direct current (DC) output port of contravariant DC arc welder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220433041.6U CN202846009U (en) 2012-08-29 2012-08-29 Dustproof plug for direct current (DC) output port of contravariant DC arc welder

Publications (1)

Publication Number Publication Date
CN202846009U true CN202846009U (en) 2013-04-03

Family

ID=47977245

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201220433041.6U Expired - Lifetime CN202846009U (en) 2012-08-29 2012-08-29 Dustproof plug for direct current (DC) output port of contravariant DC arc welder

Country Status (1)

Country Link
CN (1) CN202846009U (en)

Similar Documents

Publication Publication Date Title
CN203086345U (en) Power converting device
CN209062319U (en) A kind of electric welding machine control switching circuit of different function module
CN202846009U (en) Dustproof plug for direct current (DC) output port of contravariant DC arc welder
CN105880798B (en) A kind of keep-alive circuit of inverse type alternating current-direct current square wave argon arc-welding set
CN202752726U (en) Direct-current output port dust cover of inverted direct current arc welder
CN203086226U (en) Short-circuit motorcycle voltage regulator
CN203992747U (en) Portable welding machine
CN103138232A (en) Ultrasonic nebulizer water shortage protection circuit
CN201821265U (en) Non-polar isolation reverse converter
CN206717240U (en) Anti- water welder
CN203484779U (en) Argon arc/manual dual-purpose welding machine
CN204559421U (en) A kind of step-down controller circuit for intelligent electric meter
CN104057178A (en) Power-saving controller for electric welding machine
CN205050503U (en) Energy -conserving display screen module of full -color wide voltage of LED
CN204425197U (en) For the electromagnetic interference denoising device of former limit sampling LED control system
CN204321379U (en) For welding the Dipulse gas shield welding machine of aluminium
CN202840925U (en) Multifunctional power supply device
CN204209294U (en) A kind of wire Portable welding device
CN204615622U (en) The one people that shuts down powers voltage stabilizing circuit
CN203894694U (en) Low-power power circuit of computer
CN201622339U (en) Full-wave zero-passing detection circuit of switch power supply
CN215528599U (en) Broken tap machine is got to electric spark
CN103532502B (en) A kind of power line carrier power amplification device
CN201307844Y (en) Electric saver of industrial sewing machine
CN207171295U (en) A kind of intermediate frequency DC controller control circuit

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CX01 Expiry of patent term

Granted publication date: 20130403

CX01 Expiry of patent term