CN215499633U

CN215499633U - Frequency raising device of high-frequency conversion electromagnetic boiler

Info

Publication number: CN215499633U
Application number: CN202121453692.7U
Authority: CN
Inventors: 赵永明; 李向明
Original assignee: Shenyang Lidexun Technology Co ltd
Current assignee: Shenyang Lidexun Technology Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2022-01-11
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses a frequency raising device of a high-frequency variable-frequency electromagnetic boiler, which belongs to the technical field of electromagnetic boilers and comprises a regulating mechanism, wherein the regulating mechanism is provided with a shell, a power line, a low-frequency circuit, a medium-frequency circuit and a high-frequency circuit; the power line, the low-frequency circuit, the medium-frequency circuit and the high-frequency circuit are all positioned in the same vertical plane, the connecting strip is positioned on one side of the power line (the connecting strip and the power line are not positioned in the same vertical plane), and the free end of the connecting strip is provided with a convex part; the adjusting rotating shaft is connected with a fixing seat which is sleeved on the outer side of the adjusting rotating shaft in a sliding mode, a rotating block which is located on the outer side of the shell is fixed at one end of the adjusting rotating shaft, and a spring which is sleeved on the adjusting rotating shaft is connected between the rotating block and the fixing seat which is sleeved on the adjusting rotating shaft. The utility model has convenient operation, can realize the override adjustment and can realize better adjustment effect.

Description

Frequency raising device of high-frequency conversion electromagnetic boiler

Technical Field

The utility model relates to the technical field of electromagnetic boilers, in particular to a frequency boosting device of a high-frequency variable-frequency electromagnetic boiler.

Background

Along with the continuous development of society, people are to the continuous improvement of quality of life, and people are enjoying natural life, and natural life also brings very big influence to people, along with the continuous progress of science and technology, electromagnetic boiler's frequency conversion problem no longer is a difficult problem, and high frequency conversion electromagnetic boiler's development has brought very big change for people's life, has improved people's standard of living, so will use high frequency conversion electromagnetic boiler. However, most of the existing high-frequency conversion electromagnetic boilers in the market are common when being used, the energy-saving performance of the frequency conversion function of the high-frequency conversion electromagnetic boiler is not good, and the installation of the high-frequency conversion electromagnetic boiler is not facilitated due to the fact that the high-frequency conversion electromagnetic boiler is an independent device when the high-frequency conversion electromagnetic boiler is installed, so that the perception of the frequency increasing device of the high-frequency conversion electromagnetic boiler in the heart of people is influenced.

At present, in the prior art, a patent with publication number CN 212746594U discloses a frequency increasing device for a high-frequency variable-frequency electromagnetic boiler, wherein an adjusting mechanism is disposed inside the frequency changing device, the adjusting mechanism includes a power line, a low-frequency line, a medium-frequency line, and a high-frequency line, wherein the distances between the ends of the low-frequency line, the medium-frequency line, and the high-frequency line and the end of the power line are all equal, the end of the power line is connected with a rotatable connecting bar, and in application, when a low frequency is required, the connecting bar is rotated to contact with the low-frequency line, so as to generate a low-frequency current; when the intermediate frequency is needed, the intermediate frequency current is generated by rotating the connecting strip to be in contact with the intermediate frequency circuit; when high frequency is needed, the connecting strip is rotated to be in contact with a high-frequency circuit, so that high-frequency current is generated, and the function of facilitating adjustment of the device is achieved. However, this solution has the following problems: the override adjustment cannot be realized, for example, the current low-frequency state needs to be adjusted to a high-frequency state, and the connecting bar is bound to contact with the intermediate-frequency line in the process of rotating the connecting bar, so that the adjustment effect is influenced.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

The utility model aims to provide a frequency increasing device of a high-frequency variable-frequency electromagnetic boiler capable of realizing step-by-step adjustment, so as to solve the problems in the prior art.

2. Technical scheme

In order to solve the problems, the utility model adopts the following technical scheme:

a frequency raising device of a high-frequency variable-frequency electromagnetic boiler comprises a shell and a regulating mechanism of a power line, a low-frequency circuit, a medium-frequency circuit and a high-frequency circuit which respectively penetrate through the shell, wherein the power line, the low-frequency circuit, the medium-frequency circuit and the high-frequency circuit are respectively fixed through a fixing seat; the power line, the low-frequency circuit, the medium-frequency circuit and the high-frequency circuit are all located in the same vertical plane, the connecting strip is located on one side of the power line (the connecting strip and the power line are not located in the same vertical plane), and a protruding portion is arranged at the free end of the connecting strip; adjust the pivot and locate the fixing base sliding connection in its outside with the cover, the one end of adjusting the pivot is fixed with the rotatory piece that is located the casing outside, rotatory piece is connected with the suit between the epaxial fixing base of regulation and is adjusted epaxial spring with the suit, works as when the spring is in natural state, the free end terminal surface of connecting strip and the tip parallel and level of low frequency circuit, intermediate frequency circuit, high frequency circuit.

Furthermore, a fixing plate which is vertically arranged and is fixedly connected with the inner wall of the shell is arranged in the shell, one end, back to the rotating block, of the adjusting rotating shaft penetrates through the fixing plate and is fixedly provided with a limiting block, a through hole for the adjusting rotating shaft to penetrate through is formed in the fixing plate, and the width of the limiting block is larger than the diameter of the through hole. The adjusting rotating shaft can move telescopically relative to the through hole in the fixing plate, the limiting block can limit the distance of the adjusting rotating shaft moving to the side where the rotating block is located, the limiting block can prevent the end part of the adjusting rotating shaft from being separated from the fixing plate, and the installation stability and the moving stability of the adjusting rotating shaft are improved conveniently.

Furthermore, the cross section of the shell is circular, and the adjusting rotating shaft is located at the circle center of the shell. The rotating track of the free end of the connecting strip is concentric with the shell, so that the low-frequency circuit, the medium-frequency circuit and the high-frequency circuit can be conveniently installed.

As the improvement to above-mentioned scheme, the inside one side about the fixing base dorsad rotatory piece of casing is equipped with the positioning ring body of suit in the regulation pivot outside, the through-hole that the width is greater than regulation pivot diameter is seted up at the middle part of positioning ring body, the positioning ring body passes through second connecting block and casing fixed connection, the fixing base passes through first connecting block and casing fixed connection, the positioning ring body corresponds low frequency circuit, intermediate frequency circuit, high frequency circuit place side one-to-one and has seted up the location breach, the location breach intercommunication positioning ring body's inside and outside anchor ring, and the uncovered side of location breach link up to the terminal surface of positioning ring body dorsad fixing base. When pressing rotatory piece, can drive and adjust pivot and connecting strip and remove together, make the connecting strip remove to the one side of location ring body fixing base dorsad, the spring is compressed, at this moment, the connecting strip can be rotated along with adjusting the pivot together, when rotating to low frequency circuit or intermediate frequency circuit or high frequency circuit place side, loosen rotatory piece, under the reset action of spring, can drive and adjust pivot and connecting strip and remove to rotatory piece place side, because the connecting strip just aligns with a location breach this moment, this location breach removal can be followed to the connecting strip, the tip to the free end contact low frequency circuit of connecting strip or intermediate frequency circuit or high frequency circuit. Then change the rotation in-process of the circuit that connects at the connecting strip, because the restriction of location ring body makes and has the interval between connecting strip and each circuit tip, only when the connecting strip rotates to location breach place side, the connecting strip just can be under the reset action of spring translation to with the tip contact of corresponding circuit, through the setting of the location ring body of seting up the location breach promptly, can definitely the position of connecting strip rotation terminal point, ensure the tip contact of connecting strip and corresponding circuit, the operation of being convenient for.

Further, the both sides of location breach are the inclined plane about the central plane symmetry setting of location breach, the width of location breach is gradually narrowed by its open side to its one side towards the fixing base, the connecting strip towards one side of fixing base and the inclined plane looks adaptation of location breach both sides. When the connecting strip rotates near corresponding circuit, loosen rotatory piece, drive the connecting strip rebound under the reset action of spring, the connecting strip can conflict the inclined plane of location breach one side, produce the thrust to the location ring body, and because the location ring body is fixed motionless, it can the reaction give the connecting strip, make the connecting strip remove to location breach middle part, and move to fixing base place side under the reset action of spring, the free end of final connecting strip just contacts with the tip of corresponding circuit. Only need drive the connecting strip during operation and rotate near corresponding circuit can, the connecting strip can automatic calibration be connected with corresponding circuit, and it is comparatively convenient to operate.

3. Advantageous effects

(1) The connecting strip and the connecting end of each line are not in the same vertical plane, and the free end of the connecting strip is provided with a convex part to contact the connecting end of the corresponding line; and adjust pivot and corresponding fixing base sliding connection, still be equipped with the rotatory piece of fixing at the outside end of adjusting the pivot and locate the spring between rotatory piece and the corresponding fixing base, work as when the spring is in natural state, the free end terminal surface of connecting strip and the tip parallel and level of low frequency circuit, intermediate frequency circuit, high frequency circuit can realize contacting of connecting strip and each circuit. When the adjusting device is used, the rotating block is pressed down firstly, then the adjusting rotating shaft is driven to rotate, and the connecting strip and the end parts of all the circuits are not in the same vertical plane in the rotating process, so that the connecting strip cannot be contacted with other circuits in the rotating process, the adjusting effect can be prevented from being influenced, and the override adjustment is realized.

(2) When the adjusting operation is carried out, the rotating block is rotated only by pressing down the rotating block, and the rotating block is rotated to the side where the corresponding line is located to loosen the rotating block, so that the operation is more convenient; the positioning ring body with the positioning notch is additionally arranged, so that the position of the rotation end point of the connecting strip can be determined, the operation is convenient, and the connecting strip is ensured to be in contact with the end part of the corresponding line; still through the setting of location breach both sides inclined plane for only need drive the connecting strip during the operation rotate to near of corresponding circuit can, the connecting strip can automatic calibration be connected with corresponding circuit, and it is more convenient to operate.

In conclusion, the utility model has convenient operation, can realize the override adjustment and can realize better adjustment effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a sectional view of the present invention taken along a vertical center plane with a spring 10 in a natural state;

fig. 2 is a schematic structural view of a section a-a in fig. 1, and the second connecting block 4 is not shown;

fig. 3 is a bottom view of the positioning ring body 8 when the connecting bar 2 is in contact with the intermediate frequency line 12;

FIG. 4 is a schematic view of the cross section B-B of FIG. 3, and the connecting strip 2 is not shown;

fig. 5 is a structural sectional view of the present invention taken along a vertical center plane when the rotary block 9 is pressed.

Reference numerals: 1. a first connection block; 2. a connecting strip; 3. adjusting the rotating shaft; 4. a second connecting block; 5. a fixing plate; 6. a power line; 7. a housing; 8. a positioning ring body; 9. rotating the block; 10. a spring; 11. a fixed seat; 12. an intermediate frequency line; 13. a low frequency line; 14. a high-frequency line; 15. positioning the notch; 16. a bevel; 17. and a limiting block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a second feature of an inlet feature may include the inlet and the second feature being in direct contact, or may include the inlet and the second feature not being in direct contact but being in contact with another feature therebetween. Also, the terms "over," "above," and "above" the second feature include the inlet feature being directly above and obliquely above the second feature, or simply indicating that the inlet feature is at a higher level than the second feature. The terms "under", "below" and "beneath" of an inlet feature encompass the inlet feature being directly under and obliquely below the second feature, or simply meaning that the inlet feature is less level than the second feature.

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Example 1

As shown in fig. 1 and 2, the frequency increasing device of a high-frequency variable-frequency electromagnetic boiler comprises a housing 7 and an adjusting mechanism which passes through a power line 6, a low-frequency line 13, an intermediate-frequency line 12 and a high-frequency line 14 of the housing 7 respectively, wherein the power line 6, the low-frequency line 13, the intermediate-frequency line 12 and the high-frequency line 14 are fixed by fixing seats 11 respectively, an adjusting rotating shaft 3 penetrates through the fixing seat 11 on the power line 6, a connecting strip 2 is fixed on the adjusting rotating shaft 3, and the distances between the end parts of the low-frequency line 13, the intermediate-frequency line 12 and the high-frequency line 14 and the adjusting rotating shaft 3 are equal to the length of the connecting strip 2; the power line 6, the low-frequency line 13, the medium-frequency line 12 and the high-frequency line 14 are all located in the same vertical plane, the connecting strip 2 is located on one side of the power line 6, and a protruding portion is arranged at the free end of the connecting strip 2; the adjusting rotating shaft 3 is slidably connected with a fixed seat 11 sleeved on the outer side of the adjusting rotating shaft 3, a rotating block 9 positioned on the outer side of the shell 7 is fixed at one end of the adjusting rotating shaft 3, a spring 10 sleeved on the adjusting rotating shaft 3 is connected between the rotating block 9 and the fixed seat 11 sleeved on the adjusting rotating shaft 3, and when the spring 10 is in a natural state, the end face of the free end of the connecting strip 2 is flush with the end parts of the low-frequency circuit 13, the medium-frequency circuit 12 and the high-frequency circuit 14;

as shown in fig. 1, a fixing plate 5 which is vertically arranged and fixedly connected with the inner wall of the housing 7 is arranged in the housing 7, one end of the adjusting rotating shaft 3, which is opposite to the rotating block 9, penetrates through the fixing plate 5 and is fixed with a limiting block 17, a through hole for the adjusting rotating shaft 3 to penetrate through is formed in the fixing plate 5, and the width of the limiting block 17 is greater than the diameter of the through hole. The adjusting rotating shaft 3 can move telescopically relative to the through hole on the fixing plate 5, the limiting block 17 can limit the moving distance of the adjusting rotating shaft 3 to the side where the rotating block 9 is located, and the limiting block 17 can prevent the end part of the adjusting rotating shaft 3 from being separated from the fixing plate 5, so that the installation stability and the moving stability of the adjusting rotating shaft 3 are improved;

as shown in fig. 2, the cross section of the housing 7 is circular, and the adjusting spindle 3 is located at the center of the housing 7. The rotating track of the free end of the connecting strip 2 is concentric with the shell 7, so that the low-frequency line 13, the intermediate-frequency line 12 and the high-frequency line 14 can be conveniently installed, and when the low-frequency line, the intermediate-frequency line and the high-frequency line are installed, the low-frequency line, the intermediate-frequency line and the high-frequency line are installed in the radial direction of the shell 7, and the length of the low-frequency line, the intermediate-frequency line and the high-frequency line extending to the inside of the shell 7 is adjusted.

Example 2

The present embodiment is different from embodiment 1 in that:

in this embodiment, as shown in fig. 3 and 4, a positioning ring body 8 sleeved outside the adjusting rotating shaft 3 is disposed inside the housing 7 on a side of the fixing seat 11 opposite to the rotating block 9, a through hole having a width larger than the diameter of the adjusting rotating shaft 3 is disposed in a middle portion of the positioning ring body 8, the positioning ring body 8 is fixedly connected to the housing 7 through the second connecting block 4 (one side of the positioning ring body 8 facing the fixing plate 5 is fixedly connected to the fixing plate 5 through the second connecting block 4, and one side of the positioning ring body 8 opposite to the fixing plate 5 is fixedly connected to an inner wall of the housing 7 through another second connecting block 4), the fixing seat 11 is fixedly connected to the housing 7 through the first connecting block 1, a distance between the positioning ring body 8 and the fixing plate 5 is sufficient to accommodate the connecting strip 2, and positioning notches 15 are disposed on sides of the positioning ring body 8 corresponding to the low-frequency line 13, the intermediate-frequency line 12, and the high-frequency line 14 in a one-to-one correspondence manner, the positioning gap 15 is communicated with the inner side annular surface and the outer side annular surface of the positioning ring body 8, and the opening side of the positioning gap 15 penetrates through the end surface of the positioning ring body 8, which is back to the fixed seat 11. When the rotating block 9 is pressed down, the adjusting rotating shaft 3 and the connecting strip 2 can be driven to move together, so that the connecting strip 2 moves to one side of the positioning ring body 8, which is back to the fixed seat 11, the spring 10 is compressed, at the moment, the connecting strip 2 can be rotated along with the adjusting rotating shaft 3, when the connecting strip is rotated to the side where the low-frequency circuit 13 or the intermediate-frequency circuit 12 or the high-frequency circuit 14 is located, the rotating block 9 is loosened, under the reset action of the spring 10, the adjusting rotating shaft 3 and the connecting strip 2 can be driven to move to the side where the rotating block 9 is located, because the connecting strip 2 is just aligned with one positioning notch 15 at the moment, the connecting strip 2 can move along the positioning notch 15, and the free end of the connecting strip 2 contacts with the end part of the low-frequency circuit 13 or the intermediate-frequency circuit 12 or the high-frequency circuit 14. In the rotating process of replacing the connected circuit by the connecting bar 2, due to the limitation of the positioning ring body 8, a distance exists between the connecting bar 2 and each circuit end, and only when the connecting bar 2 rotates to the side of the positioning notch 15, the connecting bar 2 can be translated to be in contact with the end of the corresponding circuit under the reset action of the spring 10, that is, the position of the rotating end point of the connecting bar 2 can be determined through the arrangement of the positioning ring body 8 provided with the positioning notch 15, so that the connecting bar 2 is ensured to be in contact with the end of the corresponding circuit, and the operation is convenient;

as shown in fig. 3, two sides of the positioning notch 15 are inclined planes 16 symmetrically arranged about a central plane of the positioning notch 15, a width of the positioning notch 15 is gradually narrowed from an open side to one side of the positioning notch facing the fixing base 11, and one side of the connecting strip 2 facing the fixing base 11 is matched with the inclined planes 16 at two sides of the positioning notch 15. When connecting strip 2 rotates near corresponding circuit, loosen rotatory piece 9, drive connecting strip 2 rebound under spring 10's reset action, connecting strip 2 can contradict the inclined plane 16 of location breach 15 one side, produce the thrust to location ring body 8, and because location ring body 8 is fixed motionless, it can the counteraction give connecting strip 2, make connecting strip 2 remove to location breach 15 middle part, and spring 10's reset action moves to fixing base 11 place side down, the free end of final connecting strip 2 just contacts with the tip of corresponding circuit. Only need drive connecting strip 2 during the operation rotate to near of corresponding circuit can, connecting strip 2 can automatic calibration be connected with corresponding circuit, and it is comparatively convenient to operate.

Otherwise, the same procedure as in example 1 was repeated.

The specific application process of the frequency increasing device of the high-frequency variable-frequency electromagnetic boiler is as follows:

when the current frequency is adjusted, if a low frequency is needed, the rotating block 9 is pressed, as shown in fig. 5, the adjusting rotating shaft 3 and the connecting strip 2 are driven to move together, so that the connecting strip 2 moves to one side of the positioning ring body 8, which is back to the fixed seat 11, the spring 10 is compressed, the rotating block 9 is rotated again, the connecting strip 2 can be rotated along with the adjusting rotating shaft 3, when the connecting strip 2 rotates to the side where the low frequency circuit 13 is located, the rotating block 9 is loosened, the adjusting rotating shaft 3 and the connecting strip 2 can be driven to move to the side where the rotating block 9 is located under the reset action of the spring 10, because the connecting strip 2 is just aligned with the positioning notch 15 on the corresponding side at the moment, the connecting strip 2 can move along the positioning notch 15 until the free end of the connecting strip 2 contacts with the end part of the low frequency circuit 13, and a low frequency current is generated; if intermediate frequency is needed, the rotating block 9 is pressed down, then the rotating block 9 is rotated, the connecting strip 2 and the adjusting rotating shaft 3 rotate along with the rotating block, when the connecting strip 2 rotates to the side of the intermediate frequency circuit 12, the rotating block 9 is loosened, and under the reset action of the spring 10, the free end of the connecting strip 2 can be driven to contact the end part of the intermediate frequency circuit 12, so that intermediate frequency current is generated; if high frequency is needed, the rotating block 9 is pressed down, then the rotating block 9 is rotated, the connecting strip 2 and the adjusting rotating shaft 3 rotate along with the rotating block, when the connecting strip 2 rotates to the side of the high frequency circuit 14, the rotating block 9 is loosened, and under the reset action of the spring 10, the free end of the connecting strip 2 can be driven to contact the end part of the high frequency circuit 14, so that high frequency current is generated.

If the adjustment needs to be performed more than once, for example, the current low-frequency state needs to be adjusted to a high-frequency state, the rotating block 9 is pressed down to drive the adjusting rotating shaft 3 and the connecting strip 2 to move together, so that the connecting strip 2 moves to the side, opposite to the fixing seat 11, of the positioning ring body 8, the spring 10 is compressed, the rotating block 9 is rotated again, the connecting strip 2 can be driven to rotate along with the adjusting rotating shaft 3, when the connecting strip rotates to the side where the high-frequency line 14 is located, the rotating block 9 is loosened, the adjusting rotating shaft 3 and the connecting strip 2 can be driven to move to the side where the rotating block 9 is located under the reset action of the spring 10, and as the connecting strip 2 is just aligned with the positioning notch 15 on the corresponding side at the moment, the connecting strip 2 can move along the positioning notch 15 until the free end of the connecting strip 2 contacts with the end of the high-frequency line 14, so that high-frequency current is generated. In the rotating process of the connecting strip 2, because the connecting strip 2 and the end parts of the lines are not in the same vertical plane, the connecting strip 2 cannot be in contact with the intermediate frequency line 12 in the rotating process, and therefore the adjusting effect can be prevented from being influenced.

The utility model is convenient to operate, can realize the override adjustment and can realize better adjustment effect.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A frequency raising device of a high-frequency variable-frequency electromagnetic boiler comprises a shell (7) and adjusting mechanisms of a power line (6), a low-frequency line (13), an intermediate-frequency line (12) and a high-frequency line (14) which penetrate through the shell (7) respectively, wherein the power line (6), the low-frequency line (13), the intermediate-frequency line (12) and the high-frequency line (14) are fixed through fixing seats (11), adjusting rotating shafts (3) penetrate through the fixing seats (11) on the power line (6), connecting strips (2) are fixed on the adjusting rotating shafts (3), and distances among the end parts of the low-frequency line (13), the intermediate-frequency line (12) and the high-frequency line (14) and the adjusting rotating shafts (3) are equal to the lengths of the connecting strips (2); the power supply line is characterized in that the power supply line (6), the low-frequency line (13), the medium-frequency line (12) and the high-frequency line (14) are all located in the same vertical plane, the connecting strip (2) is located on one side of the power supply line (6), and a protruding portion is arranged at the free end of the connecting strip (2); adjust pivot (3) and cover and locate fixing base (11) sliding connection in its outside, the one end of adjusting pivot (3) is fixed with rotatory piece (9) that are located casing (7) outside, be connected with spring (10) of suit on adjusting pivot (3) between rotatory piece (9) and fixing base (11) of suit on adjusting pivot (3), work as when spring (10) are in when natural state, the free end terminal surface of connecting strip (2) and the tip parallel and level of low frequency circuit (13), intermediate frequency circuit (12), high frequency circuit (14).

2. The frequency increasing device of the high-frequency conversion electromagnetic boiler according to claim 1, wherein a fixing plate (5) which is vertically arranged and fixedly connected with the inner wall of the casing (7) is arranged in the casing (7), one end of the adjusting rotating shaft (3) which is back to the rotating block (9) penetrates through the fixing plate (5) and is fixed with a limiting block (17), a through hole for the adjusting rotating shaft (3) to penetrate through is formed in the fixing plate (5), and the width of the limiting block (17) is larger than the diameter of the through hole.

3. The frequency increasing device of a high-frequency conversion electromagnetic boiler according to claim 1, characterized in that the cross section of the shell (7) is circular, and the adjusting rotating shaft (3) is located at the center of the shell (7).

4. The frequency increasing device of the high-frequency variable-frequency electromagnetic boiler according to any one of claims 1 to 3, wherein a positioning ring body (8) sleeved outside the adjusting rotating shaft (3) is arranged on one side of the fixing seat (11) opposite to the rotating block (9) inside the housing (7), a through hole with a width larger than the diameter of the adjusting rotating shaft (3) is formed in the middle of the positioning ring body (8), the positioning ring body (8) is fixedly connected with the housing (7) through a second connecting block (4), the fixing seat (11) is fixedly connected with the housing (7) through a first connecting block (1), the positioning ring body (8) is correspondingly provided with positioning notches (15) on the sides corresponding to the low-frequency circuit (13), the medium-frequency circuit (12) and the high-frequency circuit (14), and the positioning notches (15) are communicated with the inner and outer ring surfaces of the positioning ring body (8), and the open side of the positioning notch (15) penetrates through the end surface of the positioning ring body (8) back to the fixed seat (11).

5. The frequency increasing device of a high-frequency conversion electromagnetic boiler according to claim 4, wherein two sides of the positioning notch (15) are inclined planes (16) symmetrically arranged about a central plane of the positioning notch (15), the width of the positioning notch (15) is gradually narrowed from an opening side to one side of the positioning notch facing the fixed seat (11), and one side of the connecting strip (2) facing the fixed seat (11) is matched with the inclined planes (16) at two sides of the positioning notch (15).