Medium-frequency induction furnace
By designing a protective cover and heating chamber structure on the medium-frequency induction furnace, the problems of wire breakage and inconvenience in metal removal caused by exposed wires are solved, achieving circuit protection and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU ZEFAN ELECTRIC FURNACE CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-08
AI Technical Summary
The wires of existing medium-frequency induction furnaces are exposed and easily broken due to pulling, making them unprotected and inconvenient to remove metal.
A protective cover is fitted onto the surface of the induction furnace body, and the circuit is movablely shielded and fixed through a combination design of external threaded rod and internal threaded ring. The interior is equipped with a heating chamber and fixing rod to facilitate the insertion and removal of metal.
It achieves effective protection of the circuit, avoids wire breakage, and improves the convenience of metal heating and removal processes.
Smart Images
Figure CN224215817U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of induction furnace technology, and particularly relates to a medium-frequency induction furnace. Background Technology
[0002] A medium-frequency induction furnace is a device that rectifies three-phase AC power into DC power, then converts the DC power into an adjustable current, which is supplied to the alternating current flowing through the capacitor and induction coil. This generates high-density magnetic lines of force in the induction coil, which cut through the metal material placed inside the induction coil, generating large eddy currents in the metal material. These eddy currents also have some properties of medium-frequency current, namely, the free electrons in the metal itself flowing in the resistive metal body generate heat.
[0003] The following problems exist with medium-frequency induction furnaces currently on the market during actual use:
[0004] 1. In actual use, traditional medium-frequency induction furnaces have a lot of wires inside the device, which are completely exposed to the outside. During use, the wires may be pulled, which may cause them to break. Therefore, the protection is poor.
[0005] 2. In most medium-frequency induction furnaces, the metal to be heated before forging is placed directly inside the heating chamber during use. After the metal is heated, an additional device is required to remove it from the heating chamber, which is inconvenient to use. Utility Model Content
[0006] The purpose of this utility model is to provide a medium-frequency induction furnace to solve the technical problems mentioned in the background art.
[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows: A medium-frequency induction furnace includes an induction furnace body, a protective cover is sleeved on the surface of the induction furnace body, a first sliding groove is opened on the top of the protective cover, an external threaded rod is welded to the top of the induction furnace body, the external threaded rod is located inside the first sliding groove, an internal threaded ring is sleeved on the surface of the external threaded rod, the bottom of the internal threaded ring is attached to the top of the protective cover, and a handle is welded to the surface of the internal threaded ring, the handle being distributed in a ring shape.
[0008] Preferably, a heating chamber is provided inside the induction furnace body, a fixing rod is installed on the surface of the induction furnace body, a support plate is provided on the outside of the induction furnace body, the support plate is located inside the heating chamber, a fixing plate is welded to one end of the support plate, a sleeve is welded to the side of the fixing plate, the fixing rod passes through the fixing plate and is located inside the sleeve, a second fixing seat is fixedly connected to the side of the fixing plate, and a ball head is welded to the other end of the second fixing seat.
[0009] Preferably, a second sliding groove is formed at the top of the protective cover, and a limiting rod is welded to the top of the induction furnace body. The limiting rod is located inside the second sliding groove and is symmetrically distributed.
[0010] Preferably, a first fixing seat is fixedly connected to the surface of the protective cover. The first fixing seat is symmetrically distributed, and a handle is welded to the other end of the first fixing seat.
[0011] Preferably, the surface of the induction furnace body is welded with an internal threaded seat, the surface of the fixing rod is opened with an external thread, the fixing rod is embedded in the internal threaded seat, and the fixing rod is symmetrically distributed.
[0012] Preferably, a second baffle is welded to one end of the fixing rod, a first baffle is provided on the outside of the induction furnace body, and the internal threaded ring is located between the first baffle and the protective cover.
[0013] The medium-frequency induction furnace of this utility model has the following advantages:
[0014] 1. This medium-frequency induction furnace features a protective cover fitted onto the surface of the furnace body, with a first sliding groove on the top of the cover. An external threaded rod is welded to the top of the furnace body, positioned inside the first sliding groove. An internal threaded ring is fitted onto the surface of the external threaded rod, with its bottom fitting against the top of the protective cover. A handle is welded to the surface of the internal threaded ring, arranged in a ring shape. When the furnace body is in use, the protective cover can be moved via the first sliding groove until it completely blocks the furnace's circuitry. Then, the internal threaded ring is rotated using the handle until its bottom fits against the top of the protective cover, thus securing the cover. The protective cover effectively protects the furnace's circuitry, preventing contact and providing strong protection during use.
[0015] 2. This medium-frequency induction furnace features a heating chamber inside the furnace body, a fixing rod installed on the surface of the furnace body, and a support plate on the outside of the furnace body. The support plate is located inside the heating chamber. A fixing plate is welded to one end of the support plate, and a sleeve is welded to the side of the fixing plate. The fixing rod passes through the fixing plate and is located inside the sleeve, providing a second fixing seat for fixed connection to the side of the fixing plate. A ball head is welded to the other end of the second fixing seat. When using this medium-frequency induction furnace, the metal to be pre-forging heated can be placed on the support plate. The support plate is then moved using the fixing rod until it carries the metal into the heating chamber. When retrieving the metal, the support plate can be moved again using the fixing rod to carry the metal out, making it very convenient to use. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the first slide groove structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the limiting rod structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the pallet structure of this utility model.
[0021] The markings in the diagram are as follows: 1. Induction furnace body; 2. Heating chamber; 3. Protective cover; 4. First slide groove; 5. External threaded rod; 6. Internal threaded ring; 7. Handle; 8. First baffle; 9. Second slide groove; 10. Limiting rod; 11. First fixed seat; 12. Handle; 13. Internal threaded seat; 14. Fixed rod; 15. Fixed plate; 16. Support plate; 17. Sleeve; 18. Second baffle; 19. Second fixed seat; 20. Ball head. Detailed Implementation
[0022] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.
[0023] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on the embodiments of this utility model.
[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0026] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.
[0027] To better understand the purpose, structure, and function of this utility model, a medium-frequency induction furnace of this utility model will be described in further detail below with reference to the accompanying drawings.
[0028] like Figure 1-4As shown, this utility model discloses a medium-frequency induction furnace, including an induction furnace body 1, a protective cover 3 fitted onto the surface of the induction furnace body 1, a first sliding groove 4 formed on the top of the protective cover 3, and an externally threaded rod 5 welded to the top of the induction furnace body 1. The externally threaded rod 5 is located inside the first sliding groove 4. By installing the protective cover 3, when the induction furnace body 1 is in use, the protective cover 3 can be moved through the first sliding groove 4 until the protective cover 3 completely blocks the circuit of the medium-frequency induction furnace. At this time, the protective cover 3 can provide protection for the circuit of the medium-frequency induction furnace, so that the circuit will not be touched, and the protection is strong during use. An internally threaded ring 6 is fitted onto the surface of the externally threaded rod 5, and the bottom of the internally threaded ring 6 is attached to the top of the protective cover 3. A handle 7 is welded to the surface of the internally threaded ring 6, and the handle 7 is distributed in a ring shape. By installing the internally threaded ring 6, when the protective cover 3 is moved to a suitable position, the internally threaded ring 6 can be rotated through the handle 7 until the bottom of the internally threaded ring 6 is attached to the top of the protective cover 3, which can provide a fixing effect for the protective cover 3 and ensure the stability of the protective cover 3 during use.
[0029] A heating chamber 2 is opened inside the induction furnace body 1. A fixing rod 14 is installed on the surface of the induction furnace body 1. A support plate 16 is provided on the outside of the induction furnace body 1. The support plate 16 is located inside the heating chamber 2. A fixing plate 15 is welded to one end of the support plate 16. A sleeve 17 is welded to the side of the fixing plate 15. The fixing rod 14 passes through the fixing plate 15 and is located inside the sleeve 17. A second fixing seat 19 is fixedly connected to the side of the fixing plate 15. A ball head 20 is welded to the other end of the second fixing seat 19. By installing the support plate 16, when using this medium-frequency induction furnace, the metal that needs to be preheated before forging can be placed on the support plate 16 first. Then, the support plate 16 is moved by the fixing rod 14 until the support plate 16 brings the metal into the heating chamber 2. When taking out the metal later, the support plate 16 can be moved again by the fixing rod 14 to take out the metal. It is very convenient to use.
[0030] A second slide groove 9 is opened on the top of the protective cover 3, and a limiting rod 10 is welded to the top of the induction furnace body 1. The limiting rod 10 is located inside the second slide groove 9 and is symmetrically distributed. By installing the limiting rod 10, the limiting rod 10 can provide a limiting effect for the protective cover 3, so that the protective cover 3 will not rotate around the external thread rod 5, which further improves the stability of the protective cover 3 during use.
[0031] The protective cover 3 is fixedly connected to the first fixing seat 11, which is symmetrically distributed. The other end of the first fixing seat 11 is welded with a handle 12. By installing the handle 12, when moving the protective cover 3, the handle 12 can be used as the force point, and the protective cover 3 can be moved directly through the handle 12, which is very convenient to use.
[0032] The surface of the induction furnace body 1 is welded with an internal thread seat 13, and the surface of the fixing rod 14 is opened with an external thread. The fixing rod 14 is embedded in the internal thread seat 13. The fixing rod 14 is symmetrically distributed. By installing the internal thread seat 13, when the pallet 16 needs to be used, the external thread on the surface of the fixing rod 14 can be used to rotate the fixing rod 14 into the internal thread seat 13, thereby providing the effect of installation and disassembly of the pallet 16, which is very convenient to use.
[0033] A second baffle 18 is welded to one end of the fixing rod 14. A first baffle 8 is provided on the outside of the induction furnace body 1. The internal threaded ring 6 is located between the first baffle 8 and the protective cover 3. By installing the first baffle 8, the first baffle 8 can provide a limiting effect for the internal threaded ring 6, so that the internal threaded ring 6 will not come off the external threaded rod 5, which is very convenient to use.
[0034] The working principle of this medium-frequency induction furnace is as follows: When using the furnace, the protective cover 3 should first be moved to a suitable position. The protective cover 3 is fitted onto the surface of the furnace body 1, and a first groove 4 is formed on the top of the cover 3. Simultaneously, an external threaded rod 5 is welded to the top of the furnace body 1, located inside the first groove 4. An internal threaded ring 6 is fitted onto the surface of the external threaded rod 5, with its bottom fitting against the top of the protective cover 3. A handle 7 is welded to the surface of the internal threaded ring 6, arranged in a ring shape. When using the furnace body 1, the protective cover 3 can be moved via the first groove 4 until it completely blocks the circuitry of the furnace. Then, the internal threaded ring 6 is rotated using the handle 7 until its bottom fits against the top of the cover 3, thus securing the cover 3. The protective cover 3 provides protection for the furnace circuitry, preventing contact with the circuitry. The furnace offers strong protection during use. It can then be used to heat metal. A heating chamber 2 is located inside the induction furnace body 1, and a fixing rod 14 is installed on the surface of the furnace body 1. A support plate 16 is located outside the furnace body 1, inside the heating chamber 2. A fixing plate 15 is welded to one end of the support plate 16, and a sleeve 17 is welded to the side of the fixing plate 15. The fixing rod 14 passes through the fixing plate 15 and is located inside the sleeve 17. A second fixing seat 19 is fixedly connected to the side of the fixing plate 15, and a ball head 20 is welded to the other end of the second fixing seat 19. When using this medium-frequency induction furnace, the metal to be pre-forged can be placed on the support plate 16. The support plate 16 is then moved using the fixing rod 14 until it carries the metal into the heating chamber 2. After the metal is heated, the support plate 16 can be moved again using the fixing rod 14 to remove the metal. This process is very convenient.
[0035] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.
Claims
1. A medium-frequency induction furnace, comprising an induction furnace body (1), characterized in that: The induction furnace body (1) is fitted with a protective cover (3). The top of the protective cover (3) has a first groove (4). The top of the induction furnace body (1) is welded with an external thread rod (5). The external thread rod (5) is located inside the first groove (4). The surface of the external thread rod (5) is fitted with an internal thread ring (6). The bottom of the internal thread ring (6) is attached to the top of the protective cover (3). The surface of the internal thread ring (6) is welded with a handle (7). The handle (7) is distributed in a ring shape.
2. The medium-frequency induction furnace according to claim 1, characterized in that: The induction furnace body (1) has a heating chamber (2) inside. A fixing rod (14) is installed on the surface of the induction furnace body (1). A support plate (16) is provided on the outside of the induction furnace body (1). The support plate (16) is located inside the heating chamber (2). A fixing plate (15) is welded to one end of the support plate (16). A sleeve (17) is welded to the side of the fixing plate (15). The fixing rod (14) passes through the fixing plate (15) and is located inside the sleeve (17). A second fixing seat (19) is fixedly connected to the side of the fixing plate (15). A ball head (20) is welded to the other end of the second fixing seat (19).
3. The medium-frequency induction furnace according to claim 1, characterized in that: The protective cover (3) has a second sliding groove (9) on its top, and the induction furnace body (1) has a limiting rod (10) welded to its top. The limiting rod (10) is located inside the second sliding groove (9) and is symmetrically distributed.
4. The medium-frequency induction furnace according to claim 1, characterized in that: The protective cover (3) is fixedly connected to a first fixing seat (11), which is symmetrically distributed. A handle (12) is welded to the other end of the first fixing seat (11).
5. The medium-frequency induction furnace according to claim 2, characterized in that: The surface of the induction furnace body (1) is welded with an internal thread seat (13), the surface of the fixing rod (14) is opened with an external thread, the fixing rod (14) is embedded in the internal thread seat (13), and the fixing rod (14) is symmetrically distributed.
6. The medium-frequency induction furnace according to claim 2, characterized in that: The fixing rod (14) has a second baffle (18) welded to one end. The induction furnace body (1) has a first baffle (8) on its outside. The internal threaded ring (6) is located between the first baffle (8) and the protective cover (3).