CN221064786U - Electrode nozzle capable of preventing current overload - Google Patents

Abstract

The utility model relates to the technical field of electrode nozzles and discloses an electrode nozzle capable of preventing current overload, which comprises a nozzle and an electrode, wherein the electrode is arranged in the nozzle, a fuse is connected to the upper conductive end of the electrode, a conductive sheet is connected to the upper end of the fuse, a through hole is formed in the inner wall of the nozzle, a limiting rod is arranged at the position, located between the two through holes, of the nozzle, and an inserting rod is sleeved on the limiting rod in a sliding manner. Through the design, the upper portion of electrode is provided with fuse and conducting strip with the junction of shower nozzle, and the conducting strip contacts with the discharge end of shower nozzle, when the overload appears, the fuse blows no longer to the electrode power supply to accomplish overload outage protection's effect, and when needing to change its shower nozzle or electrode, pull out the inserted bar along with the position that the gag lever post was prolonged out through the pull ring, make the inserted bar break away from the joint with the jack on the stopper of shower nozzle both ends, can dismantle the nozzle, thereby change inside electrode.

Description

Electrode nozzle capable of preventing current overload

Technical Field

The utility model relates to the technical field of electrode nozzles, in particular to an electrode nozzle capable of preventing current overload.

Background

Plasma arc cutting is a common processing method for metal cutting at present, a plasma cutting system mainly comprises a gas supply device, a water device, a power supply and a cutting torch, the specific form of the cutting torch depends on the current level of the cutting torch, the cutting torch comprises a torch head, a cutting torch and the like, and electrodes, nozzles, protective sleeves and the like are important components of the cutting torch.

When the existing electrode nozzle is installed, most of the electrode is placed in the nozzle, the electrode and the gun head are connected and fixed through the nozzle and the gun head, but a corresponding overload prevention mechanism is lacked between the existing nozzle and the electrode, the service lives of the electrode and the nozzle are short, frequent replacement is needed, and a threaded connection mode is excessively complicated, so that quick disassembly is not facilitated. Accordingly, one skilled in the art would provide an electrode nozzle that is resistant to current overload to solve the problems set forth in the background.

Disclosure of utility model

(One) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an electrode nozzle for preventing current overload, which solves the problems in the prior art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an prevent electrode nozzle of electric current overload, includes shower nozzle and electrode, the electrode sets up inside the nozzle, the upper portion conducting end of electrode is connected with the fuse, the fuse upper end is connected with the conducting strip, the through-hole has been seted up in the nozzle inner wall, the nozzle is located two the gag lever post is installed to the position in the middle of the through-hole, the inserted bar has been cup jointed in the gag lever post in a sliding way, inserted bar one side is connected with the butt spring, the stopper is installed to the both sides of shower nozzle.

Preferably, the limiting block is provided with a jack, the inserted bar penetrates through the through hole to be spliced with the jack, when the nozzle or the electrode of the inserted bar needs to be replaced, the inserted bar is pulled out along with the extending position of the limiting bar through the pull ring, so that the inserted bar is separated from the clamping connection with the jacks on the limiting blocks at the two ends of the spray head, and the nozzle can be detached.

Preferably, the pressing spring is sleeved on the limiting rod, one end of the pressing spring is in pressing contact with the inserting rod, the other end of the pressing spring is in pressing contact with the protruding block at the end part of the limiting rod, and the inserting rod is adjacent to the upper side of one end of the limiting rod and provided with a pull ring.

Preferably, the conducting strip is electrically connected with the discharge end of the spray head, and when overload occurs, the fuse is blown to no longer supply power to the electrode, so that the overload power-off protection effect is achieved.

Preferably, the fixed support is installed to electrode week side, the louvre has been seted up to the nozzle week side, can effectually dispel the heat to the nozzle inside, improves the duration of use.

(III) beneficial effects

Compared with the prior art, the utility model provides the electrode nozzle for preventing current overload, which has the following beneficial effects:

Through the design, the upper portion of electrode is provided with fuse and conducting strip with the junction of shower nozzle, and the conducting strip contacts with the discharge end of shower nozzle, when the overload appears, the fuse blows no longer to the electrode power supply to accomplish overload outage protection's effect, and when needing to change its shower nozzle or electrode, pull out the inserted bar along with the position that the gag lever post was prolonged out through the pull ring, make the inserted bar break away from the joint with the jack on the stopper of shower nozzle both ends, can dismantle the nozzle, thereby change inside electrode.

Drawings

Fig. 1 is a schematic perspective view of an electrode nozzle for preventing current overload according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of an electrode nozzle for preventing current overload according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of an electrode nozzle for preventing current overload according to an embodiment of the present application.

In the figure: 1. a spray head; 101. a limiting block; 102. a jack; 2. an electrode; 201. a fuse; 202. a conductive sheet; 203. a fixed bracket; 3. a nozzle; 301. a limit rod; 302. a through hole; 303. a heat radiation hole; 4. a rod; 401. pressing the spring; 402. and (5) a pull ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a technical scheme, referring to fig. 1 and 2, an electrode nozzle capable of preventing current overload comprises a nozzle 3 of a nozzle 1 and an electrode 2, wherein the electrode 2 is arranged in the nozzle 3, a fuse 201 is connected to the upper conductive end of the electrode 2, a conductive sheet 202 is connected to the upper end of the fuse 201, the conductive sheet 202 is electrically connected with the discharge end of the nozzle 1, when overload occurs, the fuse 201 blows out to supply power to the electrode 2, thereby completing the overload power-off protection effect, a through hole 302 is formed in the inner wall of the nozzle 3, a limiting rod 301 is arranged at the position of the nozzle 3 between the two through holes 302, a plug rod 4 is sleeved on the limiting rod 301 in a sliding manner, one side of the plug rod 4 is connected with a pressing spring 401, and limiting blocks 101 are arranged on two sides of the nozzle 1;

referring to fig. 2 and 3, the stopper 101 is provided with an insertion hole 102, the insertion rod 4 penetrates through the through hole 302 to be inserted into the insertion hole 102, when the nozzle 3 or the electrode 2 is required to be replaced, the insertion rod 4 is pulled out along with the extending position of the stopper 301 through the pull ring 402, so that the insertion rod 4 is separated from the clamping connection with the insertion hole 102 on the stopper 101 at two ends of the spray head 1, the nozzle 3 can be disassembled, the pressing spring 401 is sleeved on the stopper 301, one end of the pressing spring 401 is in pressing contact with the insertion rod 4, the other end of the pressing spring 401 is in pressing contact with the protruding block at the end of the stopper 301, and the pull ring 402 is installed at the upper side of one end, close to the stopper 301, of the insertion rod 4;

Referring to fig. 2 and 3, the fixing support 203 is mounted on the peripheral side of the electrode 2, and the heat dissipation holes 303 are formed on the peripheral side of the nozzle 3, so that heat dissipation can be effectively performed inside the nozzle 3, and the service life is prolonged.

The utility model comprises a spray head 1, an electrode 2 and a spray nozzle 3, wherein the electrode 2 is arranged in the spray nozzle 3, a fuse 201 and a conducting strip 202 are arranged at the joint of the upper part of the electrode 2 and the spray head 1, the conducting strip 202 is contacted with the discharge end of the spray head 1, and when overload occurs, the fuse 201 is blown to supply power to the electrode 2, so that the overload power-off protection effect is completed;

when the nozzle 3 or the electrode 2 is required to be replaced, the insert rod 4 is pulled out along with the extending position of the limiting rod 301 through the pull ring 402, so that the insert rod 4 is separated from the clamping connection with the insertion holes 102 on the limiting blocks 101 at the two ends of the spray head 1, and the nozzle 3 can be disassembled, so that the electrode 2 inside is replaced;

And be provided with the fixed bolster 203 between electrode 2 and nozzle 3 inner wall and support, make it leave the clearance under firm condition, set up the louvre 303 on the cooperation nozzle 3, can dispel the heat to inside effectively, improve the length of use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In this document, unless specifically stated and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an electrode nozzle of preventing electric current overload, includes shower nozzle (1) nozzle (3) and electrode (2), its characterized in that: the electrode (2) is arranged inside the nozzle (3), a fuse (201) is connected to the upper conductive end of the electrode (2), a conductive sheet (202) is connected to the upper end of the fuse (201), a through hole (302) is formed in the inner wall of the nozzle (3), a limiting rod (301) is arranged at the middle position of the two through holes (302) of the nozzle (3), an inserting rod (4) is sleeved on the limiting rod (301) in a sliding mode, a pressing spring (401) is connected to one side of the inserting rod (4), and limiting blocks (101) are arranged on two sides of the spray head (1).

2. An electrode nozzle for preventing current overload according to claim 1, wherein: the limiting block (101) is provided with a jack (102), and the inserted rod (4) penetrates through the through hole (302) to be inserted into the jack (102).

3. An electrode nozzle for preventing current overload according to claim 1, wherein: the pressing spring (401) is sleeved on the limiting rod (301), one end of the pressing spring (401) is in pressing contact with the inserting rod (4), and the other end of the pressing spring (401) is in pressing contact with the protruding block at the end part of the limiting rod (301).

4. An electrode nozzle for preventing current overload according to claim 1, wherein: the conducting strip (202) is electrically connected with the discharge end of the spray head (1).

5. An electrode nozzle for preventing current overload according to claim 1, wherein: the fixed support (203) is arranged on the periphery of the electrode (2), and the heat dissipation holes (303) are formed on the periphery of the nozzle (3).

6. An electrode nozzle for preventing current overload according to claim 1, wherein: a pull ring (402) is arranged on the upper side of one end, close to the limit rod (301), of the inserted link (4).