Diameter-variable induction heating coil

Abstract

The utility model provides a variable-diameter induction heating coil, which relates to the technical field of heating coils and comprises a mounting seat, a heating hole is formed in the top end of the mounting seat in a penetrating manner, a mounting groove is formed in the inner side wall of the heating hole, and a plurality of threaded grooves are symmetrically formed in the outer side wall of the mounting seat at equal intervals. A threaded rod is arranged in the threaded groove, the threaded rod extends into the mounting groove and is provided with a limiting plate, and a heating coil body is arranged between the inner side wall of the mounting groove and the limiting plate in a sleeving mode. Compared with an existing induction heating coil, the heating caliber can be conveniently changed, operation is easy and convenient, and the heating coil is high in practicability. The time required for replacing different heating coils is greatly saved, and the applicability and practicability of the induction heating coil are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of heating coil technology, and in particular to a variable diameter induction heating coil. Background Technology

[0002] Induction heating coils are based on power electronics and electromagnetic compatibility testing technology. They rectify, filter, and invert 220V AC power into a high-frequency alternating current of 25-30KHZ, which is then converted into a high-frequency alternating electromagnetic field. When the magnetic field encounters a metal cylinder, it is converted back into a high-frequency alternating current. This current causes the heated equipment to heat up directly from its internal structure.

[0003] Existing heating coils generally have a fixed heating diameter after production, which requires the use of heating coils of different sizes when heating parts of different specifications, making the heating process too cumbersome. Therefore, we propose a variable diameter induction heating coil. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies. Existing heating coils generally have a fixed heating diameter after production, which requires the use of heating coils of different sizes when heating parts of different specifications, making the heating process too cumbersome.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A variable diameter induction heating coil includes a mounting base. A heating hole is formed through the top of the mounting base. A mounting groove is formed on the inner sidewall of the heating hole. A plurality of threaded grooves are symmetrically formed at equal intervals on the outer sidewall of the mounting base. A threaded rod is provided inside the threaded groove. A limiting plate is provided inside the threaded rod extending into the mounting groove. A heating coil body is sleeved between the inner sidewall of the mounting groove and the limiting plate.

[0007] As a preferred embodiment of this utility model, the threaded rod is threadedly connected to the threaded groove.

[0008] The technical effect of adopting the above-mentioned further solution is that by connecting the threaded rod with the threaded groove, the threaded rod can rotate inside the threaded groove and move in coordination with the threaded groove during rotation.

[0009] As a preferred embodiment of this utility model, the limiting plate is made of ceramic material.

[0010] The technical effect of adopting the above-mentioned further solution is that the surface of the limiting plate made of ceramic material is relatively smooth, which can prevent damage to the heating coil body.

[0011] As a preferred embodiment of this utility model, an adjustment knob is fixed at the end of the threaded rod away from the mounting base, and an anti-slip ring is sleeved on the outer wall of the adjustment knob, the anti-slip ring being made of rubber.

[0012] The technical effect of adopting the above-mentioned further solution is that, through the design of the adjustment knob and anti-slip ring, it makes it easier for workers to tighten the threaded rod.

[0013] As a preferred embodiment of this utility model, a rotating column is installed at one end of the threaded rod near the limiting plate, and a rotating groove is provided on one side of the limiting plate corresponding to the rotating column, and the rotating column is rotatably connected to the rotating groove.

[0014] The technical effect of adopting the above-mentioned further solution is that by rotating the column and rotating the groove, the threaded rod can drive the limiting plate to move when rotating, but will not drive the limiting plate to rotate.

[0015] As a preferred embodiment of this utility model, a rotating ring is sleeved on the outer side wall of the rotating column near the rotating groove, and a limiting groove is formed on the inner side wall of the rotating groove corresponding to the rotating ring, and the rotating ring is rotatably connected to the limiting groove.

[0016] The technical effect of adopting the above-mentioned further solution is that by rotating the ring and the limiting groove, the limiting plate and the threaded rod will not separate, thereby preventing the heating coil body from falling off.

[0017] As a preferred embodiment of this utility model, the limiting plate is symmetrically installed with connecting rods near the top and bottom of the corresponding mounting groove on one side. A sliding groove is provided on the inner side wall of the mounting groove corresponding to the connecting rod. A slider is installed on the side of the connecting rod corresponding to the sliding groove, and the slider is slidably connected to the sliding groove.

[0018] The technical effect of adopting the above-mentioned further solution is that by sliding the slider and the groove, the slider can move inside the groove when the limiting plate is displaced, so that the displacement process of the limiting plate can be more stable.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] In this invention, through the design of the mounting groove, threaded groove, threaded rod, and limiting plate, when a variable diameter induction heating coil needs to heat parts of different specifications, the heating diameter can be changed relatively easily, and the operation is simple and convenient, greatly saving the time required to replace different heating coils, and effectively improving the applicability and practicality of the induction heating coil. Attached Figure Description

[0021] Figure 1A schematic diagram of the overall structure of a variable diameter induction heating coil provided by this utility model;

[0022] Figure 2 A side anatomical view of the mounting groove structure for a variable diameter induction heating coil provided by this utility model;

[0023] Figure 3 This is an enlarged schematic diagram of the A-structure of a variable diameter induction heating coil provided by this utility model.

[0024] Legend: 1. Mounting base; 2. Heating hole; 201. Mounting groove; 202. Slide groove; 3. Threaded groove; 301. Threaded rod; 302. Limiting plate; 303. Adjusting knob; 304. Anti-slip ring; 305. Rotating column; 306. Rotating groove; 307. Rotating ring; 308. Limiting groove; 309. Connecting rod; 310. Slider; 4. Heating coil body. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example 1

[0030] like Figure 1-3 As shown, this utility model provides a technical solution: a variable diameter induction heating coil, including a mounting base 1, with a heating hole 2 extending through the top of the mounting base 1, allowing workers to place parts in the heating hole 2 for heating. An installation groove 201 is provided on the inner wall of the heating hole 2, and several threaded grooves 3 are symmetrically and evenly spaced on the outer wall of the mounting base 1. A threaded rod 301 is provided inside the threaded groove 3, and a limiting plate 302 extends from the threaded rod 301 into the mounting groove 201. The threaded rod 301 can rotate inside the threaded groove 3 and drive the limiting plate 302 to move. A heating coil body 4 is sleeved between the inner wall of the mounting groove 201 and the limiting plate 302, allowing the heating coil body 4 to inductively heat the parts.

[0031] Example 2

[0032] like Figure 1-3 As shown, the threaded rod 301 is threadedly connected to the threaded groove 3. The threaded connection between the threaded rod 301 and the threaded groove 3 allows the threaded rod 301 to rotate inside the threaded groove 3 and to move in coordination with the threaded groove 3 during rotation.

[0033] The limiting plate 302 is made of ceramic material. The surface of the limiting plate 302 made of ceramic material is relatively smooth, which can prevent damage to the heating coil body 4.

[0034] An adjustment knob 303 is fixed at the end of the threaded rod 301 away from the mounting base 1. An anti-slip ring 304 is fitted on the outer wall of the adjustment knob 303. The anti-slip ring 304 is made of rubber. Through the design of the adjustment knob 303 and the anti-slip ring 304, the operator can more easily turn the threaded rod 301.

[0035] A rotating column 305 is installed at one end of the threaded rod 301 near the limiting plate 302. A rotating groove 306 is opened on one side of the limiting plate 302 corresponding to the rotating column 305. The rotating column 305 and the rotating groove 306 are rotatably connected. Through the rotatable connection between the rotating column 305 and the rotating groove 306, the threaded rod 301 can drive the limiting plate 302 to move when it rotates, but it will not drive the limiting plate 302 to rotate.

[0036] A rotating ring 307 is fitted on the outer side wall of the rotating column 305 near the rotating groove 306. A limiting groove 308 is opened on the inner side wall of the rotating groove 306 corresponding to the rotating ring 307. The rotating ring 307 and the limiting groove 308 are rotatably connected. Through the rotatable connection between the rotating ring 307 and the limiting groove 308, the limiting plate 302 and the threaded rod 301 will not separate, thereby preventing the heating coil body 4 from falling off.

[0037] A connecting rod 309 is symmetrically installed on one side of the limiting plate 302 near the top and bottom of the mounting groove 201. A sliding groove 202 is opened on the inner side wall of the mounting groove 201 corresponding to the connecting rod 309. A slider 310 is installed on one side of the connecting rod 309 corresponding to the sliding groove 202. The slider 310 is slidably connected to the sliding groove 202. Through the sliding connection between the slider 310 and the sliding groove 202, the slider 310 can move inside the sliding groove 202 when the limiting plate 302 is displaced, so that the displacement process of the limiting plate 302 can be more stable.

[0038] The working process of this utility model is as follows: When using a variable diameter induction heating coil to heat parts of different specifications, the operator can first turn the adjustment knob 303 to drive the threaded rod 301 to rotate, so that the threaded rod 301 can rotate forward or backward inside the threaded groove 3. At the same time as the threaded rod 301 moves, the limiting plate 302 can also move. By lengthening or tightening the heating coil body 4 according to actual needs, the heating diameter can be changed. Compared with existing induction heating coils, the heating diameter can be changed more conveniently, and the operation is simple and convenient, greatly saving the time required to replace different heating coils, and effectively improving the applicability and practicality of the induction heating coil.

[0039] Although embodiments of the present invention 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 to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable diameter induction heating coil comprising a mounting base (1), characterised in that: The top end of the mounting base (1) is provided with a heating hole (2), the inner side wall of the heating hole (2) is provided with a mounting groove (201), the outer side wall of the mounting base (1) is provided with a plurality of screw grooves (3) which are equidistantly and symmetrically arranged, the inside of the screw groove (3) is provided with a threaded rod (301), the threaded rod (301) extends to the inside of the mounting groove (201) and is provided with a limiting plate (302), and the inner side wall of the mounting groove (201) and the limiting plate (302) are sleeved with a heating coil body (4).

2. A variable diameter induction heating coil according to claim 1, wherein: The threaded rod (301) is in threaded connection with the screw groove (3).

3. A variable diameter induction heating coil according to claim 1, wherein: The limiting plate (302) is made of ceramic material.

4. A variable diameter induction heating coil as defined in claim 1, wherein: The threaded rod (301) is fixed with an adjusting knob (303) at the end away from the mounting base (1), the outer side wall of the adjusting knob (303) is sleeved with an anti-skid ring (304), and the anti-skid ring (304) is made of rubber material.

5. A variable diameter induction heating coil as defined in claim 1 wherein: The threaded rod (301) is provided with a rotating column (305) at the end close to the limiting plate (302), the side of the limiting plate (302) corresponding to the rotating column (305) is provided with a rotating groove (306), and the rotating column (305) is in rotating connection with the rotating groove (306).

6. A variable diameter induction heating coil according to claim 5, wherein: The outer side wall of the rotating column (305) is sleeved with a rotating ring (307) close to the rotating groove (306), the inner side wall of the rotating groove (306) is provided with a limiting groove (308) corresponding to the rotating ring (307), and the rotating ring (307) is in rotating connection with the limiting groove (308).

7. A variable diameter induction heating coil as defined in claim 1 wherein: The limiting plate (302) is symmetrically provided with a connecting rod (309) at the side close to the top end and the bottom corresponding to the mounting groove (201), the inner side wall of the mounting groove (201) is provided with a sliding groove (202) corresponding to the connecting rod (309), the side of the connecting rod (309) corresponding to the sliding groove (202) is provided with a sliding block (310), and the sliding block (310) is in sliding connection with the sliding groove (202).

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