Enamel anti-scale corrosion-resistant heating pipe

Abstract

The utility model provides an enamel anti-scale corrosion-resistant heating pipe, which relates to the technical field of heating pipes, and comprises a junction box, two heating pipes are arranged at the bottom of the junction box and are distributed in a crossed manner, a top cover is arranged at the top of the junction box, the top cover is detachably connected with the junction box, and enamel layers are respectively arranged outside the two heating pipes. According to the heating pipe, the resistance performance of the power supply line can be improved through the tensile assembly, the situation that when the heating pipe is lifted, the connecting position of the power supply line and the connecting terminal is stressed to be disconnected is prevented, the situation that the connecting position is disconnected and normal use of the heating pipe is affected is avoided by changing the stress point, and then the heating pipe can be conveniently disassembled and installed through the installation assembly; disassembly and assembly are simpler and faster, production and later maintenance of the heating pipe are facilitated, and the efficiency of production and later maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating tubes, in particular to an enamel anti-scaling and corrosion-resistant heating tube. Background Art

[0002] Heating elements are a common heating element widely used in various industrial and household appliances, such as water heaters, electric kettles, steam generators, and ovens. The main function of a heating element is to generate heat by passing an electric current through the heating element, and then transfer this heat to the surrounding medium (such as water, air, or other fluids) to achieve the purpose of heating. Currently, when applied to the field of water heating, a layer of enamel is applied to the surface to improve durability, corrosion resistance, and anti-scaling. Most water heaters on the market use stainless steel heating elements that are directly immersed in water for heating. After heating is completed, the water heater is usually lifted out of the water by hand using the power cord. However, the heating element has a certain weight, and lifting it will pull the connection between the power cord and the heating element. After long-term use, it may cause the connection to break, resulting in malfunction. At the same time, during use, the heating element may cause the enamel layer to fall off when it collides with objects. After the enamel layer falls off, the overall durability, corrosion resistance, and anti-scaling performance of the enamel layer are reduced, and the heating element needs to be replaced. If the heating element is subsequently repaired, the heating element needs to be disassembled for replacement and repair. Existing heating elements are mostly welded, which is more troublesome to disassemble. Utility Model Content

[0003] The utility model aims to solve the shortcomings existing in the background technology and provide an enamel anti-scale and corrosion-resistant heating tube. The tensile component can improve the resistance performance of the power supply line to prevent the connection between the power supply line and the connection terminal from being disconnected due to stress when the heating tube is lifted. By changing the stress point, the connection is avoided from being disconnected, which affects the normal use of the heating tube. Secondly, the installation component can facilitate the disassembly and installation of the heating tube, and the disassembly and installation are simpler and faster, which is beneficial to the production and subsequent maintenance of the heating tube and improves the efficiency of production and subsequent maintenance.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an enameled, scale-proof and corrosion-resistant heating tube, comprising: a junction box, two heating tubes are provided at the bottom of the junction box, the two heating tubes are distributed in a cross shape, a top cover is provided on the top of the junction box, the top cover is detachably connected to the junction box, and the two heating tubes are respectively provided with an enamel layer on the outside; a tensile component, the tensile component is provided on the junction box, the tensile component includes: a connecting plate, a connecting seat, a thread a, an elastic plate and a splint; an installation component, the installation component is provided on the two heating tubes, the installation component includes: an insert rod, a thread b, a connecting terminal, a through hole and a nut.

[0005] Furthermore, a connecting plate is fixedly connected to the axis of the top cover, a connecting seat is fixedly connected to the top of the connecting plate, a thread a is provided on the outside of the connecting seat, and several elastic plates distributed in a circular array are fixedly connected to the top of the connecting seat, and the tops of several elastic plates are respectively fixedly connected to splints.

[0006] Furthermore, the two ends of the top of the two heating tubes are respectively fixedly connected with a plug rod, the outside of the plug rod is provided with a thread b, the inside of the plug rod is provided with a connecting terminal, and the bottom of the junction box is provided with two pairs of through holes for accommodating the insertion of the plug rod, the top of the plug rod passes through the through hole and extends to the inside of the junction box, and the outside of the thread b is threadedly connected with a nut.

[0007] Furthermore, the external thread of the thread a is connected to a threaded pipe, the top of the threaded pipe is fixedly connected to an extrusion ring, and the interior of the extrusion ring is arranged in a truncated cone-shaped structure.

[0008] Furthermore, a groove is provided on the inner wall of the connecting seat, and a sealing ring a is provided inside the groove.

[0009] Furthermore, a power supply line is provided inside the junction box, and the power supply line is connected to the plurality of connection terminals respectively, and one end of the power supply line passes through the top cover, the connection plate, the connection seat and the threaded tube.

[0010] Furthermore, a placement groove is provided at the bottom of the junction box near the periphery of the through hole, a sealing ring b is provided inside the placement groove, and both ends of the top of the two heating tubes are fixedly connected to the embedded ring respectively.

[0011] The advantage of the utility model is that the tensile strength component can improve the resistance of the power supply line, thereby preventing the connection between the power supply line and the connection terminal from being disconnected due to stress when the heating tube is lifted. By changing the stress point, the disconnection of the connection is avoided, which affects the normal use of the heating tube.

[0012] Secondly, the installation assembly can facilitate the disassembly and installation of the heating tube, which is simpler and faster, and is beneficial to the production and subsequent maintenance of the heating tube, thereby improving the efficiency of production and subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a cross-sectional view of the overall structure of the utility model.

[0015] Figure 3 This is a schematic diagram of the heating tube structure of the present utility model.

[0016] Figure 4 This is a schematic diagram of the connecting plate structure of the present invention.

[0017] Figure 5 For the utility model Figure 2 Enlarged view of point A in the middle.

[0018] Figure 6 For the utility model Figure 2 Enlarged view of point B in the middle.

[0019] Figure 1-6 In: 1. Junction box; 11. Heating tube; 12. Top cover; 13. Enamel layer; 2. Connecting plate; 21. Connecting seat; 22. Thread a; 23. Elastic plate; 24. Clamp; 25. Threaded tube; 26. Extrusion ring; 27. Groove; 28. Sealing ring a; 29. Power supply line; 3. Insert rod; 31. Thread b; 32. Connecting terminal; 33. Through hole; 34. Nut; 35. Placement groove; 36. Sealing ring b; 37. Embedded ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0021] An embodiment of the present application provides an enameled, scale-proof, and corrosion-resistant heating tube, which can improve the resistance of the power supply line through a tensile component to prevent the connection between the power supply line and the connection terminal from being disconnected due to stress when the heating tube is lifted. By changing the stress point, the connection is prevented from being disconnected, which affects the normal use of the heating tube.

[0022] The following is a detailed description of the enamel anti-scale and corrosion-resistant heating tube. It should be noted that the description order of the following embodiments is not intended to limit the preferred order of the embodiments.

[0023] The present application is described in detail below with reference to the accompanying drawings and specific implementation methods. Example 1

[0024] See also Figure 1-6 In this embodiment, an enameled anti-scale and corrosion-resistant heating tube is provided, comprising: a junction box 1, two heating tubes 11 are provided at the bottom of the junction box 1, the two heating tubes 11 are distributed in a cross shape, a top cover 12 is provided on the top of the junction box 1, the top cover 12 is detachably connected to the junction box 1, and an enamel layer 13 is provided on the outside of the two heating tubes 11; a tensile component is provided on the junction box 1, and an installation component is provided on the two heating tubes 11.

[0025] When installing the two heating tubes 11, the two heating tubes 11 are installed to the bottom of the junction box 1 through the installation assembly, which is convenient for replacing and cleaning the heating tubes 11. The enamel layer 13 on the outside of the heating tube 11 can increase the service life of the heating tube 11 when in use. The smooth surface of the enamel layer 13 can prevent scale from adhering and maintain a high thermal efficiency. The enamel layer can effectively prevent the metal material from reacting with the chemical substances in the water, reduce the occurrence of corrosion, and improve the durability of the heating tube. The tensile assembly can prevent the cable from being disconnected from the two heating tubes 11 when pulled. Example 2

[0026] On the basis of Example 1, the tensile component includes: a connecting plate 2, a connecting seat 21, a thread a22, an elastic plate 23 and a splint 24. The top cover 12 is fixedly connected to the connecting plate 2 at the axis, and the top of the connecting plate 2 is fixedly connected to the connecting seat 21. The outside of the connecting seat 21 is provided with a thread a22. The top of the connecting seat 21 is fixedly connected to a number of elastic plates 23 distributed in a ring array. The tops of the several elastic plates 23 are respectively fixedly connected to the splint 24. The outer thread a22 is threadedly connected to a threaded tube 25, and the top of the threaded tube 25 is fixedly connected to an extrusion ring 26. The inside of the extrusion ring 26 is a truncated cone structure. A groove 27 is provided on the inner wall of the connecting seat 21, and a sealing ring a28 is provided inside the groove 27. A power supply line 29 is provided inside the junction box 1. The power supply line 29 is respectively connected to a plurality of connecting terminals 32. One end of the power supply line 29 passes through the top cover 12, the connecting plate 2, the connecting seat 21 and the threaded tube 25.

[0027] During assembly, first install the sealing ring a28 into the groove 27, pass the bottom end of the power supply line 29 through the threaded tube 25, the top cover 12, the connecting plate 2, and the connecting seat 21, and then connect the connecting terminal 32 through the power supply line 29. Then install the top cover 12 to the top of the junction box 1, and then screw the threaded tube 25 onto the thread a22 on the outside of the connecting seat 21, so that the threaded tube 25 moves downward. The threaded tube 25 drives the extrusion ring 26 to move downward, so that several elastic plates 23 move closer to the center, driving the splint 24 to clamp the power supply line 29, thereby changing the connection point of the power supply line 29 to avoid the connection between the power supply line 29 and the connecting terminal 32 being disconnected by force. The sealing ring a28 can seal the power supply lines 29. Example 3

[0028] On the basis of Example 1, the installation assembly includes: an insertion rod 3, a thread b31, a connecting terminal 32, a through hole 33 and a nut 34. The two ends of the top of the two heating tubes 11 are fixedly connected with the insertion rod 3, the outside of the insertion rod 3 is provided with a thread b31, and the inside of the insertion rod 3 is provided with a connecting terminal 32. The bottom of the junction box 1 is provided with two pairs of through holes 33 for accommodating the insertion rod 3 to pass through. The top of the insertion rod 3 extends through the through holes 33 to the inside of the junction box 1, and the outside of the thread b31 is threadedly connected with a nut 34. The bottom of the junction box 1 is provided with a placement groove 35 near the side of the through hole 33, and a sealing ring b36 is provided inside the placement groove 35. The two ends of the top of the two heating tubes 11 are fixedly connected with the embedded ring 37.

[0029] When installing the two heating tubes 11, place the sealing rings b36 in the placement grooves 35 respectively, then insert the rods 3 at both ends of the top of the two heating tubes 11 into the through holes 33, so that the rods 3 extend into the inside of the junction box 1. At this time, the embedded ring 37 enters the placement groove 35 to squeeze the sealing ring b36, and the sealing ring b36 is used to seal the top of the two heating tubes 11 and the junction box 1. Then, screw the nut 34 onto the thread b31, and clamp the junction box 1 through the thread b31 and the heating tube 11. In this way, the two heating tubes 11 are installed on the junction box 1, and then the power supply line 29 is connected to the connection terminal 32.

[0030] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0031] The above is a detailed introduction to an enameled anti-scale and corrosion-resistant heating tube provided in an embodiment of the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the technical solution and core idea of the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not cause the essence of the corresponding technical solution to deviate from the scope of the technical solution of the embodiments of the present application.

Claims

1. A enamel anti-scale and corrosion-resistant heating tube, characterized in that: include: A junction box (1), wherein two heating tubes (11) are provided at the bottom of the junction box (1), the two heating tubes (11) are arranged in a cross-shaped manner, a top cover (12) is provided at the top of the junction box (1), the top cover (12) is detachably connected to the junction box (1), and the exteriors of the two heating tubes (11) are respectively provided with an enamel layer (13); A tensile assembly, the tensile assembly being arranged on the junction box (1), the tensile assembly comprising: a connecting plate (2), a connecting seat (21), a thread a (22), an elastic plate (23) and a clamping plate (24); A mounting assembly is provided on the two heating tubes (11), and the mounting assembly comprises: an insert rod (3), a thread b (31), a connecting terminal (32), a through hole (33), and a nut (34).

2. The enamel anti-scale and corrosion-resistant heating tube according to claim 1, characterized in that: The top cover (12) is fixedly connected to a connecting plate (2) at the axis thereof, the top of the connecting plate (2) is fixedly connected to a connecting seat (21), the outside of the connecting seat (21) is provided with a thread a (22), the top of the connecting seat (21) is fixedly connected to a plurality of elastic plates (23) distributed in a ring array, and the tops of the plurality of elastic plates (23) are respectively fixedly connected to a clamping plate (24).

3. The enamel anti-scale and corrosion-resistant heating tube according to claim 1, characterized in that: The two ends of the top of the two heating tubes (11) are respectively fixedly connected with an insertion rod (3), the outside of the insertion rod (3) is provided with a thread b (31), the inside of the insertion rod (3) is provided with a connection terminal (32), the bottom of the junction box (1) is provided with two pairs of through holes (33) for accommodating the insertion rod (3) to pass through, the top of the insertion rod (3) passes through the through holes (33) and extends to the inside of the junction box (1), and the outside of the thread b (31) is threadedly connected with a nut (34).

4. The enamel anti-scale and corrosion-resistant heating tube according to claim 2, characterized in that: The thread a (22) is externally threadedly connected to a threaded tube (25), and the top of the threaded tube (25) is fixedly connected to an extrusion ring (26), and the interior of the extrusion ring (26) is arranged in a truncated cone-shaped structure.

5. The enamel anti-scale and corrosion-resistant heating tube according to claim 1, characterized in that: A groove (27) is provided on the inner wall of the connecting seat (21), and a sealing ring a (28) is provided inside the groove (27).

6. The enamel anti-scale and corrosion-resistant heating tube according to claim 5, characterized in that: A power supply line (29) is provided inside the junction box (1), and the power supply line (29) is connected to the plurality of connection terminals (32) respectively. One end of the power supply line (29) passes through the top cover (12), the connection plate (2), the connection seat (21) and the threaded tube (25).

7. The enamel anti-scale and corrosion-resistant heating tube according to claim 3, characterized in that: The bottom of the junction box (1) is provided with a placement groove (35) near the periphery of the through hole (33), and a sealing ring b (36) is provided inside the placement groove (35). The top ends of the two heating tubes (11) are respectively fixedly connected to the embedded ring (37).

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