Efficient and energy-saving electric heater

Abstract

The utility model belongs to the technical field of efficient and energy-saving electric heaters, and particularly relates to an efficient and energy-saving electric heater which comprises an efficient and energy-saving electric heater body and two bases, the two bases are fixedly connected to the bottom face of the efficient and energy-saving electric heater body, a through groove is formed in the bottom face of each base, and a supporting plate is rotationally connected into each through groove. Two universal wheels are rotationally connected to one side of the supporting plate, an insertion hole is formed in the other side of the supporting plate, two symmetrically-arranged rotating grooves are formed in the base, two rotating blocks are rotationally connected into the two rotating grooves correspondingly, and one ends of the two rotating blocks penetrate through the inner walls of the two rotating grooves correspondingly and extend into the through grooves to be fixed to the two ends of the supporting plate; according to the efficient and energy-saving electric heater carrying device, the problems that in the carrying process of an efficient and energy-saving electric heater, due to the fact that the efficient and energy-saving electric heater is long, the efficient and energy-saving electric heater is difficult to carry by a single person, and the efficient and energy-saving electric heater needs to be lifted by two persons to be carried are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of high-efficiency energy-saving electric heaters, and in particular relates to a high-efficiency energy-saving electric heater. Background Art

[0002] An energy-efficient electric heater is a device that uses electrical energy to generate heat energy to heat objects. Its energy-efficient features are mainly reflected in the following aspects:

[0003] High conversion rate: Electric heaters convert electrical energy into thermal energy with a relatively high conversion rate, thus making more efficient use of energy.

[0004] Precise control: Electric heaters usually have precise temperature control capabilities, and can adjust the heating power and time as needed to reduce unnecessary energy waste.

[0005] Design optimization: Some high-efficiency electric heaters use advanced heating elements and structural designs to improve heating efficiency and heat transfer effects while reducing energy consumption.

[0006] For example, a Chinese patent with publication number CN215724189U discloses an efficient and energy-saving electric heater, which solves the problem that the vibration of the medium inside the electric heater causes the device to vibrate, affecting the use. The electric heater comprises an electric heater body, one side of the upper end of the electric heater body is connected to an inlet pipe, and the upper end of the electric heater body is connected to an outlet pipe on the side away from the inlet pipe. In the utility model, when vibration occurs, the vibration force is transmitted downward by the support plate, so that the inner shell body squeezes the damping rod downward. At the same time, the support rod drives the first buffer block to squeeze the first spring downward, and the second buffer block squeezes the third spring. The second spring is stretched downward under the pull of the first buffer block, and the two sliders at the upper end of the inner shell slide to both sides. The fourth spring is compressed. Under the shock absorbing action of the damping rod, the reaction force of the first spring, the second spring, the third spring and the fourth spring is cooperated to weaken and offset the vibration, thereby effectively avoiding the influence of vibration on the device.

[0007] The above patent has the following problems:

[0008] This patent has some disadvantages when used, such as: the above-mentioned high-efficiency energy-saving electric heater is difficult to carry by one person due to its length, and two people are required to lift and carry the high-efficiency energy-saving electric heater. In view of this, we propose a high-efficiency energy-saving electric heater. Utility Model Content

[0009] The purpose of the utility model is to provide a high-efficiency and energy-saving electric heater to solve the problems raised in the above background technology.

[0010] In view of this, the utility model provides a high-efficiency and energy-saving electric heater, comprising:

[0011] The cam is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts, each of which is provided with a plurality of camshafts.

[0012] Two fixing components, the two fixing components are respectively located in the two bases and are respectively used to fix the two support plates;

[0013] Two limiting components are respectively located in the two bases and are respectively used to fix the two rotating rods.

[0014] Based on the above structure, by providing a through slot and a support plate, it is ensured that the support plate can rotate in the through slot, by providing a universal wheel, it is ensured that the two universal wheels can rotate on the corresponding support plate, by providing a fixing component and a socket, it is ensured that the user can fix the support plate in the through slot through the fixing component and the socket so that it cannot rotate, by providing a rotating slot and a rotating block, it is ensured that the two rotating blocks can rotate in the two rotating slots respectively, by providing a clockwork spring, when the fixing component releases the fixation of the support plate, the elastic potential energy stored in the two clockwork springs will be converted back into mechanical energy, respectively pushing the two clockwork springs to restore to their original shapes and respectively driving the two rotating blocks to rotate, so that one end of the two rotating blocks drives the support plate to rotate, and when the support plate rotates to a position where it cannot rotate, the two universal wheels will move to the outside, by providing a rotating rod, it is ensured that the user can drive the support plate to rotate through the rotating rod, and by providing a limit assembly, it is ensured that when the rotating rod is rotated to a suitable position, the limit assembly can fix the rotating rod to prevent the rotating rod from being affected by the outside world and rotating.

[0015] In the above technical solution, further, the fixing assembly includes:

[0016] A first slide groove, wherein the first slide groove is provided in the base and communicates with the through groove, a plug rod is slidably connected in the first slide groove, and one end of the plug rod extends into the insertion hole and is plugged into the insertion hole, and the other end of the plug rod is fixedly connected to a first spring fixed to the inner wall of the first slide groove;

[0017] A movable groove is provided in the base and is connected to the first slide groove. A transmission rod is rotatably connected in the movable groove. An extrusion groove is provided on the transmission rod. A transmission block is slidably connected in the extrusion groove, and one end of the transmission block extends into the first slide groove and is fixed to the insertion rod. A push block is slidably connected in the movable groove, and one end of the push block is in contact with the transmission rod, and the other end of the push block passes through the inner wall of the movable groove and extends to the outside and is slidably connected to the base.

[0018] In this technical solution, it is ensured that the user can quickly release the fixation of the support plate, and can also quickly fix the support plate.

[0019] In the above technical solution, further, one end of the transmission block is slidably connected to the first sliding groove.

[0020] In this technical solution, it is ensured that one end of the transmission block can slide normally in the first sliding groove.

[0021] In the above technical solution, further, the limit assembly includes:

[0022] The second slide groove is provided in the base and communicated with the outside, an insert block is slidably connected in the second slide groove, and one end of the insert block extends to the outside, and the other end of the insert block is fixedly connected with a second spring fixed to the inner wall of the second slide groove.

[0023] In the technical solution, it is ensured that when the rotating rod is rotated to a suitable position, it can be fixed, so that the rotating rod can fix the support plate through one of the rotating blocks.

[0024] In the above technical solution, further, one end of the insert block is arranged at an angle.

[0025] In this technical solution, it is ensured that the insert block can be squeezed by the rotating rod.

[0026] In the above technical solution, further, one end of the two rotating blocks is rotatably connected to the through slot.

[0027] In this technical solution, it is ensured that one end of the two rotating blocks can rotate normally in the through slot.

[0028] The beneficial effects of the utility model are:

[0029] The high-efficiency and energy-saving electric heater ensures that the support plate can rotate in the through slot by means of the through slot and the support plate, ensures that the two universal wheels can rotate on the corresponding support plates by means of the universal wheels, ensures that the user can fix the support plate in the through slot through the fixed component and the plug hole so that it cannot rotate by means of the fixed component and the plug hole, ensures that the two rotating blocks can rotate in the two rotating slots respectively by means of the rotating slot and the rotating block, and ensures that the two rotating blocks can rotate in the two rotating slots respectively by means of the clockwork springs, when the fixing component releases the fixation of the support plate, the elastic potential energy stored in the two clockwork springs will be converted back into mechanical energy, and the two clockwork springs will be pushed to restore to their original shapes and The two rotating blocks are driven to rotate respectively, and one end of the two rotating blocks drives the supporting plate to rotate. When the supporting plate rotates to a position where it cannot rotate, the two universal wheels will move to the outside. The rotating rod is set to ensure that the user can drive the supporting plate to rotate through the rotating rod. The limit assembly is set to ensure that when the rotating rod is rotated to a suitable position, the limit assembly can fix the rotating rod to prevent the rotating rod from being affected by the outside world. This solves the problem that the high-efficiency and energy-saving electric heater is difficult to carry by one person due to its long length, and two people are required to lift the high-efficiency and energy-saving electric heater for transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0031] Figure 2 This is one of the schematic diagrams of the internal structure of the base of the utility model;

[0032] Figure 3 This is the second schematic diagram of the internal structure of the base of the utility model;

[0033] Figure 4 This is the third schematic diagram of the internal structure of the base of the utility model;

[0034] Figure 5 It is a schematic diagram of the internal structure of the second chute of the utility model.

[0035] The symbols in the figure are:

[0036] 1. The body of the energy-efficient electric heater; 2. The base; 3. The through slot; 4. The support plate; 5. The universal wheel; 6. The plug hole; 7. The rotating slot; 8. The rotating block; 9. The spring; 10. The rotating rod; 11. The first slide slot; 12. The plug rod; 13. The first spring; 14. The movable slot; 15. The transmission rod; 16. The extrusion slot; 17. The transmission block; 18. The pushing block; 19. The second slide slot; 20. The plug block; 21. The second spring. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0038] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0039] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0040] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0041] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0042] Embodiment 1:

[0043] See also Figure 1 - Figure 5 As shown, this embodiment provides a high-efficiency and energy-saving electric heater, comprising:

[0044] A high-efficiency and energy-saving electric heater body 1 and two bases 2, the two bases 2 are fixedly connected to the bottom surface of the high-efficiency and energy-saving electric heater body 1, a through groove 3 is provided on the bottom surface of the base 2, a support plate 4 is rotatably connected in the through groove 3, one side of the support plate 4 is rotatably connected to two universal wheels 5, and the other side of the support plate 4 is provided with a socket 6, two symmetrically arranged rotating grooves 7 are provided in the base 2, two rotating blocks 8 are rotatably connected in the two rotating grooves 7, and one end of the two rotating blocks 8 respectively penetrates the inner walls of the two rotating grooves 7 and extends to the through groove 3 and is fixed to the two ends of the support plate 4, a clockwork spring 9 is provided on the circumferential side of the rotating block 8, and one end of the clockwork spring 9 is fixed to the circumferential side of the rotating block 8, and the other end of the clockwork spring 9 is fixed to the inner wall of the rotating groove 7, the other end of one of the rotating blocks 8 is fixedly connected to a rotating rod 10, and one end of the rotating rod 10 penetrates the inner wall of one of the rotating grooves 7 and extends to the outside and is rotatably connected to the base 2;

[0045] Two fixing components, the two fixing components are respectively located in the two bases 2 and are respectively used to fix the two support plates 4;

[0046] Two limiting components are respectively located in the two bases 2 and are used to fix the two rotating rods 10 respectively.

[0047] Embodiment 2:

[0048] This embodiment provides an energy-efficient electric heater, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The fixing assembly includes:

[0049] A first slide groove 11 is provided in the base 2 and communicates with the through groove 3. A plug rod 12 is slidably connected in the first slide groove 11, and one end of the plug rod 12 extends into the insertion hole 6 and is plugged into the insertion hole 6. The other end of the plug rod 12 is fixedly connected to a first spring 13 fixed to the inner wall of the first slide groove 11;

[0050] A movable groove 14 is provided in the base 2 and is connected to the first slide groove 11. A transmission rod 15 is rotatably connected in the movable groove 14. An extrusion groove 16 is provided on the transmission rod 15. A transmission block 17 is slidably connected in the extrusion groove 16. One end of the transmission block 17 extends into the first slide groove 11 and is fixed to the insertion rod 12. A push block 18 is slidably connected in the movable groove 14. One end of the push block 18 is in contact with the transmission rod 15. The other end of the push block 18 passes through the inner wall of the movable groove 14 and extends to the outside to be slidably connected to the base 2.

[0051] When the user needs to rotate the support plate 4 to the outside, the user lifts one end of the energy-saving electric heater body 1 by hand, and then the user pushes the pushing block 18 with the toes, so that one end of the pushing block 18 squeezes one end of the transmission rod 15, so that the transmission rod 15 rotates in the movable groove 14. When the transmission rod 15 rotates, the transmission rod 15 will squeeze the transmission block 17 through the extrusion groove 16, so that the transmission block 17 drives one end of the insertion rod 12 from the insertion hole 6 into the first sliding groove 11, and makes the other end of the insertion rod 12 compress the first spring 13. At this time, the fixation of the support plate 4 is released, and then the user can rotate the support plate 4 to the outside. When the user rotates the support plate 4 from the outside to the through groove 3, one end of the insertion rod 12 will be affected by the rebound force of the first spring 13 and inserted into the insertion hole 6, fixing the support plate 4 in the through groove 3 and unable to move, ensuring that the user can quickly release the fixation of the support plate 4, and can also quickly fix the support plate 4.

[0052] Embodiment 3:

[0053] This embodiment provides an efficient and energy-saving electric heater. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the transmission block 17 is slidably connected to the first sliding groove 11.

[0054] Here, it is ensured that one end of the transmission block 17 can slide normally in the first sliding groove 11 .

[0055] Embodiment 4:

[0056] This embodiment provides an energy-efficient electric heater, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The limit assembly includes:

[0057] The second slide groove 19 is provided in the base 2 and communicated with the outside. An insert block 20 is slidably connected in the second slide groove 19, and one end of the insert block 20 extends to the outside. The other end of the insert block 20 is fixedly connected with a second spring 21 fixed to the inner wall of the second slide groove 19.

[0058] When the rotating rod 10 is rotated, the rotating rod 10 will squeeze one end of the plug block 20, allowing one end of the plug block 20 to enter the second sliding groove 19 from the outside, and allowing the other end of the plug block 20 to compress the second spring 21. When the rotating rod 10 is rotated to a suitable position, one end of the plug block 20 will be moved from the second sliding groove 19 to the outside by the rebound force of the second spring 21, fixing the rotating rod 10. When the user needs to release the fixation of the rotating rod 10, press one end of the plug block 20, allowing one end of the plug block 20 to enter the second sliding groove 19 from the outside and compress the second spring 21. When one end of the plug block 20 enters the second sliding groove 19 from the outside, the plug block 20 will release the fixation of the rotating rod 10, ensuring that when the rotating rod 10 is rotated to a suitable position, it can be fixed, so that the rotating rod 10 can fix the support plate 4 through one of the rotating blocks 8.

[0059] Embodiment 5:

[0060] This embodiment provides an efficient and energy-saving electric heater. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the insert block 20 is inclined.

[0061] Here, it is ensured that the insert block 20 can be squeezed by the rotating rod 10 .

[0062] Embodiment 6:

[0063] This embodiment provides an efficient and energy-saving electric heater. In addition to the technical solutions of the above embodiments, it also has the following technical features: one end of the two rotating blocks 8 is rotatably connected to the through slot 3.

[0064] Here, it is ensured that one end of the two rotating blocks 8 can rotate normally in the through slot 3 .

[0065] When the user needs to carry the entire device, the user lifts one end of the energy-efficient electric heater body 1 by hand, and then the user pushes the pushing block 18 with the toes, so that one end of the pushing block 18 squeezes one end of the transmission rod 15, so that the transmission rod 15 rotates in the movable groove 14. When the transmission rod 15 rotates, the transmission rod 15 will squeeze the transmission block 17 through the squeezing groove 16, so that the transmission block 17 drives one end of the insertion rod 12 from the insertion hole 6 into the first sliding groove 11, and makes the other end of the insertion rod 12 compress the first spring 13. At this time, the fixation of the support plate 4 is released. When the fixation of the support plate 4 is released, the elastic potential energy stored in the two clockwork springs 9 will be converted into mechanical energy, which pushes the two clockwork springs 9 to restore to their original shapes, allowing the two clockwork springs 9 to drive the two The two rotating blocks 8 rotate in the two rotating grooves 7 respectively. When the two rotating blocks 8 rotate, the two rotating blocks 8 will drive the support plate 4 to rotate in the through groove 3, so that the support plate 4 drives the two universal wheels 5 to move to the outside. When the support plate 4 rotates, the support plate 4 will drive the rotating rod 10 to rotate in the outside through one of the rotating blocks 8. When the rotating rod 10 rotates, the rotating rod 10 will squeeze one end of the plug block 20, so that one end of the plug block 20 enters the second sliding groove 19 from the outside, and the other end of the plug block 20 compresses the second spring 21. When the rotating rod 10 rotates to a suitable position, one end of the plug block 20 will be moved from the second sliding groove 19 to the outside by the rebound force of the second spring 21, fixing the rotating rod 10, and the support plate 4 will also be fixed, ensuring The two universal wheels 5 can stably support one end of the high-efficiency and energy-saving electric heater body 1. Then the user turns one end of the high-efficiency and energy-saving electric heater body 1, and then lifts the other end of the high-efficiency and energy-saving electric heater body 1, and continues the operation to support the entire device. After that, the user can push the entire device to move the entire device to a suitable position. When the entire device moves, multiple universal wheels 5 will roll on the ground, making it easier for the user to push. When the entire device moves to a suitable position, the user presses one end of the two plug blocks 20 to allow one end of the plug block 20 to enter the second slide groove 19 from the outside and compress the second spring 21. When one end of the plug block 20 enters the second slide groove 19 from the outside, the two plug blocks 20 will release the locking respectively. The fixation of the two rotating rods 10 allows the two support plates 4 to rotate in the opposite direction under the influence of the gravity of the energy-efficient electric heater body 1. When the two support plates 4 move to the appropriate position, the two support plates 4 will drive the multiple universal wheels 5 to move into the two through slots 3 respectively. When the two support plates 4 completely enter the two through slots 3, one end of the two insertion rods 12 will be respectively affected by the rebound force of the two first springs 13 and inserted into the two insertion holes 6 respectively, fixing the two support plates 4 in the two through slots 3 respectively. When the support plates 4 rotate in the opposite direction, the support plates 4 will compress the two clockwork springs 9 respectively through the two rotating blocks 8. When the two clockwork springs 9 are compressed, the two clockwork springs 9 will bend and deform, thereby converting mechanical energy into elastic potential energy for storage.Ensure that the user can carry the entire device alone.

[0066] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A highly efficient and energy-saving electric heater, characterized in that: include: A high-efficiency energy-saving electric heater body (1) and two bases (2), wherein the two bases (2) are fixedly connected to the bottom surface of the high-efficiency energy-saving electric heater body (1), a through groove (3) is provided on the bottom surface of the base (2), a support plate (4) is rotatably connected in the through groove (3), two universal wheels (5) are rotatably connected to one side of the support plate (4), a socket (6) is provided on the other side of the support plate (4), two symmetrically arranged rotation grooves (7) are provided in the base (2), two rotation blocks (8) are rotatably connected in the two rotation grooves (7), and One end of the two rotating blocks (8) respectively penetrates the inner walls of the two rotating grooves (7) and extends into the through groove (3) to be fixed to the two ends of the support plate (4); a spring (9) is arranged on the circumference of the rotating block (8), and one end of the spring (9) is fixed to the circumference of the rotating block (8), and the other end of the spring (9) is fixed to the inner wall of the rotating groove (7); the other end of one of the rotating blocks (8) is fixedly connected to a rotating rod (10), and one end of the rotating rod (10) penetrates the inner wall of one of the rotating grooves (7) and extends to the outside to be rotatably connected to the base (2); Two fixing components, the two fixing components are respectively located in the two bases (2) and are respectively used to fix the two support plates (4); Two limiting assemblies are respectively located in the two bases (2) and are respectively used to fix the two rotating rods (10).

2. The energy-efficient electric heater according to claim 1, characterized in that: The fixing assembly comprises: A first slide groove (11), wherein the first slide groove (11) is provided in the base (2) and is connected to the through groove (3), wherein an insertion rod (12) is slidably connected in the first slide groove (11), and one end of the insertion rod (12) extends into the insertion hole (6) and is plugged into the insertion hole (6), and the other end of the insertion rod (12) is fixedly connected to a first spring (13) fixed to the inner wall of the first slide groove (11); A movable groove (14), wherein the movable groove (14) is provided in the base (2) and is connected to the first slide groove (11); a transmission rod (15) is rotatably connected in the movable groove (14); an extrusion groove (16) is provided on the transmission rod (15); a transmission block (17) is slidably connected in the extrusion groove (16); one end of the transmission block (17) extends into the first slide groove (11) and is fixed to the insertion rod (12); a push block (18) is slidably connected in the movable groove (14); one end of the push block (18) is in contact with the transmission rod (15); the other end of the push block (18) penetrates the inner wall of the movable groove (14) and extends to the outside to be slidably connected to the base (2).

3. The high-efficiency and energy-saving electric heater according to claim 2, characterized in that: One end of the transmission block (17) is slidably connected to the first sliding groove (11).

4. The high-efficiency and energy-saving electric heater according to claim 1, characterized in that: The limiting component comprises: A second slide groove (19), wherein the second slide groove (19) is provided in the base (2) and communicated with the outside, an insert block (20) is slidably connected in the second slide groove (19), and one end of the insert block (20) extends to the outside, and the other end of the insert block (20) is fixedly connected to a second spring (21) fixed to the inner wall of the second slide groove (19).

5. The high-efficiency and energy-saving electric heater according to claim 4, characterized in that: One end of the insert block (20) is arranged in an inclined manner.

6. The high-efficiency and energy-saving electric heater according to claim 1, characterized in that: One end of the two rotating blocks (8) is rotatably connected to the through slot (3).

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