An electric heater with protective function

Abstract

This utility model discloses an electric heater with a protective function, including an electric heater body, an electric heater end, and a heating tube fixedly disposed on one end face of the electric heater end; a protective component, sleeved on the outside of the heating tube, includes a fixing ring and a mounting ring. The fixing ring is fixedly connected to one end face of the electric heater end, and one end of the mounting ring is detachably connected to the fixing ring via a mounting component. The other end is fixedly provided with a protective component sleeved on the outside of the heating tube for protecting the heating tube. The protective component includes multiple sets of protective plates evenly arranged along the circumference of the mounting ring. The length direction of the protective plates is parallel to the length direction of the heating tube, and a heat dissipation gap is provided between adjacent sets of protective plates. This utility model can protect the heating tube and prevent it from being bumped or knocked during handling.

Description

Technical Field

[0001] This utility model relates to the field of electric heater technology, and in particular to an electric heater with protective function. Background Technology

[0002] Electric heaters are a popular type of electric heating equipment internationally. They are used for heating, maintaining, and warming flowing liquid and gaseous media. When the heating medium passes through the heating chamber of the electric heater under pressure, the enormous heat generated by the heating element is uniformly carried away using the principles of fluid thermodynamics, ensuring that the temperature of the heated medium meets the user's process requirements.

[0003] A search revealed a Chinese patent (CN222263042U) disclosing an immersion electric heater, comprising a heater head, a flange, and a heating coil. The heater head has an external protective assembly, and a buffer assembly is installed on the end face of the heater head. The protective assembly includes a ceramic base, a mounting plate, a rubber column, and a protective plate; the buffer assembly includes a sleeve, a column, and a support ring. The protective assembly works in conjunction with the buffer assembly to protect the heater head from damage due to impact. However, this immersion electric heater still has the following problems in actual use:

[0004] When using this immersion electric heater, the heating coil needs to be inserted into the heater housing. During insertion and removal, the outer wall of the heating coil is prone to collision with the opening of the heater housing, which can cause damage to the heating coil and reduce the service life of the electric heater. Utility Model Content

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an electric heater with a protective function that can protect the heating element and prevent it from being bumped or knocked during handling.

[0006] This utility model provides an electric heater with protective function, characterized in that it includes:

[0007] The electric heater body includes an electric heater end and a heating tube fixedly disposed on one end face of the electric heater end;

[0008] A protective assembly, fitted over the outside of the heating tube, includes a fixing ring and a mounting ring. The fixing ring is fixedly connected to one end face of the electric heater. One end of the mounting ring is detachably connected to the fixing ring via a mounting component, and the other end is fixedly fitted with a protective component fitted over the outside of the heating tube for protecting the heating tube.

[0009] The protective component includes multiple sets of protective plates evenly arranged along the circumference of the mounting ring. The length direction of the protective plates is parallel to the length direction of the heating tube, and a heat dissipation gap is provided between adjacent sets of protective plates.

[0010] Furthermore, the protective component also includes reinforcing plates, with multiple sets of reinforcing plates spaced apart along the length of the protective plates between adjacent sets of protective plates.

[0011] Furthermore, at least two sets of positioning posts are provided on the end face of the mounting ring away from the protective component, and positioning holes corresponding to the positioning posts are opened on the end face of the fixing ring away from the heater end, and the positioning posts match the positioning holes.

[0012] A magnetic block is provided inside the positioning hole, and a magnet is provided at the end of the positioning post away from the mounting ring.

[0013] Furthermore, the mounting component includes a sliding ring and a rotating ring coaxially sleeved on the outside of the mounting ring. The sliding ring is slidably connected to the outer surface of the mounting ring and can reciprocate along the length of the heating tube. The rotating ring is rotatably connected to the sliding ring, and the inner surface of the rotating ring is provided with an internal thread, while the outer surface of the fixed ring is provided with an external thread, so that the rotating ring and the fixed ring are threadedly connected.

[0014] Furthermore, multiple sliders are evenly arranged on the inner surface of the sliding ring along its circumference, and multiple sets of sliding grooves are evenly opened on the outer surface of the mounting ring along its circumference. The sliding grooves are arranged along the length direction of the heating tube, and the multiple sets of sliding grooves correspond one-to-one with the multiple sets of sliders.

[0015] Furthermore, a limit block is provided at one end of the chute away from the heating tube.

[0016] Furthermore, multiple sets of actuating blocks are provided on the outer surface of the rotating ring.

[0017] Furthermore, two sets of handles are symmetrically arranged about its axis on the outer surface of the mounting ring.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] The electric heater body of this utility model includes an electric heater end and a heating tube. A protective component is sleeved on the outside of the heating tube. The protective component includes a fixing ring, a mounting ring, and a protective element. In use, the mounting ring is sleeved on the outside of the heating tube, and then the mounting ring is fixedly connected to the fixing ring by the mounting element. At this time, the protective element sleeved on the outside of the heating tube protects the heating tube. During the process of inserting the heater body into the heating machine housing and removing it from the heating machine housing, the heating tube can be prevented from colliding with the opening of the heating machine housing, avoiding damage to the heating tube and extending the service life of the electric heater body.

[0020] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the electric heater body in this utility model;

[0024] Figure 3 This is a partial structural schematic diagram of the protective component in this utility model;

[0025] Figure 4 This is a structural schematic diagram of the mounting ring, protective component, and handle in this utility model;

[0026] Figure 5 This is a schematic diagram of the installation ring and positioning post in this utility model;

[0027] Figure 6 This is a schematic diagram of the sliding ring, rotating ring, slider, and actuating block in this utility model;

[0028] Labels in the diagram: 1. Electric heater body; 2. Protective components;

[0029] 11. Electric heater end; 12. Heating tube; 13. Flange;

[0030] 21. Retaining ring; 22. Mounting ring; 23. Mounting component; 24. Protective component; 25. Handle;

[0031] 211. Magnetic block;

[0032] 221. Positioning post; 222. Magnet; 223. Limiting block;

[0033] 231. Sliding ring; 232. Rotating ring; 233. Sliding block; 234. Actuating block;

[0034] 241. Protective plate; 242. Reinforcing plate. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0036] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Please refer to Figures 1-6 An embodiment of this utility model provides an electric heater with a protective function, including an electric heater body 1 and a protective component 2, wherein,

[0038] The electric heater body 1 includes an electric heater end 11 and a heating tube 12 fixedly disposed on one end face of the electric heater end 11;

[0039] Specifically, multiple heating tubes 12 are provided, and the multiple heating tubes 12 are arranged in a circle. A flange 13 is provided at one end of the electric heater end 11 near the heating tube 12. After the heating tube 12 is inserted into the heating machine housing, the electric heater body 1 is fixed to the heating machine housing by the flange 13.

[0040] The protective component 2 is sleeved on the outside of the heating tube 12, including a fixing ring 21 and a mounting ring 22. The fixing ring 21 is fixedly connected to one end face of the electric heater end 11. One end of the mounting ring 22 is detachably connected to the fixing ring 21 through a mounting member 23, and the other end is fixedly provided with a protective member 24 sleeved on the outside of the heating tube 12 for protecting the heating tube 12.

[0041] The protective component 24 includes multiple sets of protective plates 241 evenly arranged along the circumference of the mounting ring 12. The length direction of the protective plate 241 is parallel to the length direction of the heating tube 12, and a heat dissipation gap is provided between two adjacent sets of protective plates 241.

[0042] Specifically, during protection, the mounting ring 22 is taken out and placed on the outside of the heating tube 12. When the mounting ring 22 abuts against the fixing ring 21, the mounting ring 22 and the fixing ring 21 are fixedly connected by the mounting component 23. At this time, the protective component 24 formed by multiple sets of protective plates 241 is placed on the outside of the heating tube 12 to protect the heating tube 12, prevent the outer wall of the heating tube 12 from directly contacting the opening of the heating machine casing, avoid damage to the heating tube, and extend the service life of the electric heater body. Moreover, the heating tube 12 heats up after being powered on, and the heat is discharged through the heat dissipation gap, so that the heating tube 12 can be used normally while being protected. The protective plate 241, the mounting ring 22 and the fixing ring 21 are all made of heat-resistant insulating material.

[0043] In a preferred embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the protective component 24 also includes reinforcing plates 242, and multiple sets of reinforcing plates 242 are spaced apart between two adjacent sets of protective plates 241 along the length direction of the protective plate 241.

[0044] Specifically, multiple sets of protective plates 241 are arranged in a circle, and the reinforcing plate 242 is an arc-shaped plate used to connect two adjacent sets of protective plates 241 to improve the overall stability of the protective component 24.

[0045] In a preferred embodiment, such as Figure 3 and Figure 5 As shown, at least two sets of positioning posts 221 are provided on the end face of the mounting ring 22 away from the protective component 24, and positioning holes corresponding to the positioning posts 221 are provided on the end face of the fixing ring 21 away from the heater end 11, and the positioning posts 221 match the positioning holes.

[0046] A magnetic block 211 is provided inside the positioning hole, and a magnet 222 is provided at the end of the positioning post 221 away from the mounting ring 22.

[0047] Specifically, two or three sets of positioning pins 221 can be set. By setting the positioning pins 221 and positioning holes, the mounting ring 22 and the fixing ring 21 can be quickly aligned. When the positioning pins 221 are inserted into the corresponding positioning holes, the magnetic block 211 and the magnet 222 are tightly attached by magnetic attraction force. The two can be separated by using a force of 8N. By setting the magnetic block 211 and the magnet 222, the mounting ring 22 and the fixing ring 21 are initially fixed.

[0048] In a preferred embodiment, such as Figure 3 and Figure 6As shown, the mounting component 23 includes a sliding ring 231 and a rotating ring 232 coaxially sleeved on the outside of the mounting ring 21. The sliding ring 231 is slidably connected to the outer surface of the mounting ring 21 and can reciprocate along the length of the heating tube 12. The rotating ring 232 is rotatably connected to the sliding ring 231, and the inner surface of the rotating ring 232 is provided with an internal thread. The outer surface of the fixed ring 21 is provided with an external thread so that the rotating ring 232 is threadedly connected to the fixed ring 21.

[0049] Preferred, such as Figure 6 As shown, multiple sliders 233 are evenly arranged along the circumference on the inner surface of the sliding ring 231, and multiple sets of sliding grooves are evenly opened along the circumference on the outer surface of the mounting ring 22. The sliding grooves are arranged along the length of the heating tube 12, and the multiple sets of sliding grooves correspond one-to-one with the multiple sets of sliders 233.

[0050] Specifically, after the end face of the mounting ring 22 abuts against the end face of the fixed ring, the sliding block 231 is manually pulled to make the rotating ring 232 contact the outer surface of the fixed ring 21. Then, the rotating ring 232 is manually rotated to make both the rotating ring 232 and the sliding ring 231 move in the direction closer to the fixed ring 21. The mounting ring 22 and the fixed ring 21 are further fixedly connected by the threaded connection to improve the stability of the mounting ring 22 after installation.

[0051] In a preferred embodiment, such as Figure 3 As shown, a limit block 223 is provided at the end of the chute away from the heating tube 12.

[0052] Specifically, the rotating ring 232 stops rotating when the slider 233 comes into contact with the limit block 223, to avoid over-tightening and damage.

[0053] In a preferred embodiment, such as Figure 3 and Figure 6 As shown, multiple sets of actuating blocks 234 are provided on the outer surface of the rotating ring 232.

[0054] Specifically, during installation or disassembly, the rotating ring 232 can be rotated by the toggle block 234.

[0055] In a preferred embodiment, such as Figure 3 and Figure 6 As shown, two sets of handles 25 are symmetrically arranged about its axis on the outer surface of the mounting ring 22.

[0056] Specifically, the handle 25 is provided with anti-slip texture, which makes it easy to pick up the mounting ring 22 and the protective part 24.

[0057] Working principle:

[0058] In use, the mounting ring 22 and the protective element 24 are picked up by the handle 25. The mounting ring 22 is then placed on the outside of the heating tube 12. When the mounting ring 22 abuts against the fixing ring 21, the positioning pin 221 is inserted into the positioning hole for fixation. The mounting ring 22 and the fixing ring 21 are initially fixed by magnetic attraction. Then, the rotating ring 232 is rotated so that both the rotating ring 232 and the sliding ring 231 move in the direction close to the fixing ring 21. The mounting ring 22 and the fixing ring 21 are further fixed and connected by threaded connection to improve the stability of the mounting ring 22 after installation. At this time, the protective element 24, which is formed by multiple sets of protective plates 241, is placed on the outside of the heating tube 12 to protect the heating tube 12 and prevent the outer wall of the heating tube 12 from directly contacting the opening of the heating machine casing, thus avoiding impact to the heating tube and extending the service life of the electric heater body.

[0059] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0060] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An electric heater with protective function, characterized in that, include: The electric heater body (1) includes an electric heater end (11) and a heating tube (12) fixedly disposed on one end face of the electric heater end (11); A protective component (2), fitted around the outside of the heating tube (12), includes a fixing ring (21) and a mounting ring (22). The fixing ring (21) is fixedly connected to one end face of the electric heater end (11). One end of the mounting ring (22) is detachably connected to the fixing ring (21) via a mounting component (23). The other end is fixedly provided with a protective component (24) fitted around the outside of the heating tube (12) for protecting the heating tube (12). The protective component (24) includes multiple sets of protective plates (241) evenly arranged around the circumference of the mounting ring (22). The length direction of the protective plate (241) is parallel to the length direction of the heating tube (12), and a heat dissipation gap is provided between adjacent sets of protective plates (241).

2. An electric heater with protective function according to claim 1, characterized in that, The protective component (24) also includes a reinforcing plate (242), and multiple sets of the reinforcing plates (242) are spaced apart between two adjacent sets of the protective plates (241) along the length direction of the protective plate (241).

3. An electric heater with protective function according to claim 1, characterized in that, At least two sets of positioning posts (221) are provided on the end face of the mounting ring (22) away from the protective component (24). The end face of the fixing ring (21) away from the electric heater end (11) is provided with positioning holes corresponding to the positioning posts (221). The positioning posts (221) match the positioning holes. A magnetic block (211) is provided inside the positioning hole, and a magnet (222) is provided at the end of the positioning post (221) away from the mounting ring (22).

4. An electric heater with protective function according to claim 1, characterized in that, The mounting component (23) includes a sliding ring (231) and a rotating ring (232) coaxially sleeved on the outside of the mounting ring (22). The sliding ring (231) is slidably connected to the outer surface of the mounting ring (22) and can reciprocate along the length of the heating tube (12). The rotating ring (232) is rotatably connected to the sliding ring (231), and the inner surface of the rotating ring (232) is provided with an internal thread. The outer surface of the fixed ring (21) is provided with an external thread so that the rotating ring (232) is threadedly connected to the fixed ring (21).

5. An electric heater with protective function according to claim 4, characterized in that, The inner surface of the sliding ring (231) is uniformly provided with multiple sliders (233) along its circumference, and the outer surface of the mounting ring (22) is uniformly provided with multiple sets of sliding grooves along its circumference. The sliding grooves are arranged along the length direction of the heating tube (12), and the multiple sets of sliding grooves correspond one-to-one with the multiple sets of sliders (233).

6. An electric heater with protective function according to claim 5, characterized in that, A limit block (223) is provided at one end of the chute away from the heating tube (12).

7. An electric heater with protective function according to claim 4, characterized in that, Multiple sets of actuating blocks (234) are provided on the outer surface of the rotating ring (232).

8. An electric heater with protective function according to claim 1, characterized in that, Two sets of handles (25) are symmetrically arranged about its axis on the outer surface of the mounting ring (22).

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