Intelligent automatic temperature control type electric heating tube

Abstract

The utility model relates to the technical field of electric heating tubes, and discloses an intelligent automatic temperature control type electric heating tube, which comprises a wiring fixing disc and a heating rod, a fixing screw tube is fixed on the outer surface of the wiring fixing disc at the top of the heating rod, and a sealing ring plate is fixedly sleeved on the outer surface of the wiring fixing disc at the bottom of the fixing screw tube. By means of the detachable buoyancy positioning plate, the buoyancy positioning plate of the corresponding size can be adjusted according to the diameter of the inner wall of the heating equipment in the using process, and the buoyancy positioning plate can be driven by the buoyancy of the buoyancy positioning plate, so that the buoyancy positioning plate can be fixed to the inner wall of the heating equipment, and the heating equipment can be fixed to the inner wall of the heating equipment. The problem that the position of the electric heating bar cannot be adjusted according to the water level when an existing intelligent automatic temperature control type electric heating pipe is used is solved, and the situation of empty burning is avoided.

Description

Technical Field

[0001] The utility model application relates to the technical field of electric heating tubes, in particular to an intelligent self-temperature-controlled electric heating tube. Background Art

[0002] The electric heating tube is a tubular electric heating element. It is composed of a metal tube spiral resistance wire and crystalline magnesium oxide powder. The high-temperature resistance wire is evenly distributed in the stainless steel seamless tube, and the gap is filled with crystalline magnesium oxide powder with good thermal conductivity and insulation properties. It has advanced structure, high thermal efficiency and uniform heating. When current passes through the high-temperature resistance wire, the heat generated diffuses to the surface of the metal tube through the magnesium oxide powder, and then is transferred to the heated part or the air to achieve the purpose of heating.

[0003] When the electric heating tube is used to heat liquid or metal solid, the heating tube must be completely placed in the heated object, and empty burning is prohibited. Empty burning will damage the heating tube and affect its heat dissipation performance and service life, but the existing Summary of the Invention

[0004] In order to solve the problem that the existing electric heating tube cannot adjust the position of the electric heating rod according to the water level when in use, the utility model provides an intelligent self-temperature-controlling electric heating tube to solve the above problem.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An intelligent self-temperature-controlled electric heating tube comprises a wiring fixing plate and a heating rod, wherein a fixed spiral tube is fixed to the outer surface of the wiring fixing plate at the top of the heating rod, a sealing ring plate is fixedly provided on the outer surface of the wiring fixing plate at the bottom of the fixed spiral tube, a fixed sleeve is threadedly sleeved on the outer side of the fixed spiral tube, a buoyancy positioning plate is fixed to the outer surface of the lower part of the fixed sleeve, and a plurality of limit strips are equidistantly fixed to the outer surface of the fixed sleeve at the top of the buoyancy positioning plate.

[0007] Furthermore, the outer surface of the fixed spiral tube and the inner wall of the buoyancy positioning plate are provided with mutually matching threads, and the outer ring diameter of the fixed sleeve is smaller than the outer ring diameter of the sealing ring plate.

[0008] Furthermore, a sealing pad is glued and fixed to the top surface of the fixed sleeve, and a sealing groove cooperating with the sealing pad is provided on the inner edge of the bottom of the sealing ring plate. Both the sealing pad and the sealing groove are configured as a ring that cooperates with the fixed spiral pipe.

[0009] Furthermore, movable grooves are symmetrically provided inside the sealing ring plate, and a movable insert is slidably inserted into each of the movable grooves, and a limit plate is fixed to the side surface of one end of the movable insert extending below the sealing ring plate, a movable pull rod is inserted inside the movable insert, and a limit clamping plate is fixed to one end of the movable pull rod extending below the movable insert, a spring is sleeved on the movable pull rod on the top surface of the movable insert, and the upper and lower ends of the spring are respectively fixed to the movable pull rod and the movable insert.

[0010] Furthermore, each of the position-limiting clips and the movable slot is configured to be in an arc shape that matches the fixed sleeve, and the arc length of each of the position-limiting clips is equal to half of the arc length of the movable slot.

[0011] Furthermore, the movable insert is configured as a hollow T-shape that matches the movable groove, the width of the limit plate is greater than the width of the movable groove, and both of the two movable pull rods are configured as T-shapes.

[0012] Furthermore, the height of each of the limit card plates is smaller than the distance between the top of the limit card strip and the top of the fixed sleeve, each of the limit card plates is configured to be an arc that cooperates with the fixed sleeve, and the arc length of each of the limit card plates is smaller than the arc length of the fixed sleeve between the two limit card strips.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. In the utility model, the detachable buoyancy positioning plate can be used to adjust the buoyancy positioning plate of corresponding size according to the diameter of the inner wall of the heating equipment. The buoyancy of the buoyancy positioning plate can ensure that the electric heating rod is always immersed in the liquid, thereby solving the problem that the existing intelligent self-control temperature electric heating tube cannot adjust the position of the electric heating rod according to the water level during use, thereby avoiding the situation of empty burning.

[0015] 2. In the present invention, through the limiting reinforcement structure, after the buoyancy positioning plate is installed, the limiting clamping plate and the fixed clamping strip cooperate to limit and reinforce the fixed sleeve to ensure the stability of the buoyancy positioning plate after installation, thereby avoiding the stability of the electric heating tube during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0017] Figure 1 This is a schematic diagram of the structure of an electric heating tube according to an embodiment of the present application;

[0018] Figure 2 yes Figure 1 A schematic diagram of the structure of the electric heating tube before assembly in the embodiment shown;

[0019] Figure 3 yes Figure 1 A schematic front view of a local structure in the embodiment shown;

[0020] Figure 4 yes Figure 1 A bottom view of the local structure in the embodiment shown.

[0021] The meanings of the reference numerals in the figure are: 1. Wiring fixing plate; 2. Heating rod; 3. Fixed screw; 4. Fixed sleeve; 5. Buoyancy positioning plate; 6. Sealing ring plate; 7. Limiting clip; 8. Movable groove; 9. Movable insert; 10. Limiting plate; 11. Movable pull rod; 12. Limiting clip; 13. Spring; 14. Sealing pad; 15. Sealing groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, features, and advantages of this application more obvious and easy to understand, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described below are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] Reference Figure 1 、 Figure 2 and Figure 4 , an intelligent self-controlling temperature electric heating tube, including a wiring fixing disk 1 and a heating rod 2, a fixed coil 3 is fixed on the outer surface of the wiring fixing disk 1 at the top of the heating rod 2, and the outer surface of the fixed coil 3 and the inner wall of the buoyancy positioning plate 5 are provided with mutually matching threads, the outer ring diameter of the fixed sleeve 4 is smaller than the outer ring diameter of the sealing ring plate 6, and the outer surface of the wiring fixing disk 1 at the bottom of the fixed coil 3 is fixed with a sealing ring plate 6, and the outer side of the fixed coil 3 is threadedly sleeved with a fixed sleeve 4, and a sealing gasket 14 is glued and fixed to the top surface of the fixed sleeve 4, and a sealing groove 15 is provided on the inner edge of the bottom of the sealing ring plate 6 to match the sealing gasket 14. The sealing gasket 14 and the sealing groove 15 are both set to a ring shape to match the fixed coil 3, and a buoyancy positioning plate 5 is fixed to the outer surface of the lower part of the fixed sleeve 4, and a plurality of limit strips 7 are equidistantly fixed to the outer surface of the fixed sleeve 4 at the top of the buoyancy positioning plate 5.

[0024] Specifically, when it is necessary to use an electric heating tube, insert the heating rod 2 into the liquid, select the buoyancy positioning plate 5 of corresponding size according to the inner ring diameter of the heater shell, and then screw the fixing sleeve 4 onto the fixing screw 3 to fix it, and drive the sealing rubber gasket 14 to abut against the inside of the sealing groove 15, so that the buoyancy positioning plate 5 can be fixed to the wiring fixing plate 1. After fixation, the outer surface of the buoyancy positioning plate 5 fits with the inner wall of the shell, and rises and falls under the action of buoyancy, which can ensure that the heating rod 2 is always immersed in the liquid, while preventing the liquid from submerging the buoyancy positioning plate 5.

[0025] As an optimization solution, Figure 3 and Figure 4 As shown, the sealing ring plate 6 is symmetrically provided with movable grooves 8, each limiting card strip 7 and movable groove 8 are configured to be in an arc shape that cooperates with the fixed sleeve 4, and the arc length of each limiting card strip 7 is equal to half of the arc length of the movable groove 8. A movable insert 9 is slidably inserted into the interior of each movable groove 8, and the movable insert 9 is configured to be in a hollow T-shape that cooperates with the movable groove 8. The width of the limiting plate 10 is greater than the width of the movable groove 8, and the side surface of one end of the movable insert 9 extending to the bottom of the sealing ring plate 6 is fixed with a limiting plate 10, and a movable pull rod 11 is inserted into the interior of the movable insert 9, and the two movable pull rods 11 are both configured to be T-shaped. The movable pull rod 11 extends to one end below the movable insert cylinder 9 and is fixed with a limit card plate 12. The height of each limit card plate 12 is less than the distance between the top of the limit card strip 7 and the top of the fixed sleeve 4, ensuring that the limit card plate 12 can be pulled to be misaligned with the limit card strip 7. Each limit card plate 12 is set to an arc shape that cooperates with the fixed sleeve 4. The arc length of each limit card plate 12 is less than the arc length of the fixed sleeve 4 between the two limit card strips 7. A spring 13 is sleeved on the movable pull rod 11 on the top surface of the movable insert cylinder 9, and the upper and lower ends of the spring 13 are respectively fixed on the movable pull rod 11 and the movable insert cylinder 9.

[0026] Specifically, when the fixed sleeve 4 is screwed to the fixed screw 3 and fixed, the movable pull rod 11 is pulled upward, so that the movable pull rod 11 drives the limit clamp 12 to pull the spring 13 to move upward, to prevent the limit clamp 12 from limiting the fixed sleeve 4. After the fixed sleeve 4 is screwed to abut against the sealing ring plate 6, the movable insert tube 9 is pulled to make the movable insert tube 9 slide inside the movable groove 8 until the limit clamp 12 is aligned with the two limit strips 7, and then the movable pull rod 11 is released so that the limit clamp 12 is inserted into the outer surface of the fixed sleeve 4 between the two limit strips 7 under the pull of the spring 13, which can limit the fixed sleeve 4 and prevent the fixed sleeve 4 from rotating in a circle. When the buoyancy positioning plate 5 needs to be disassembled, the movable pull rod 11 is pulled upward again, and the fixed sleeve 4 can be directly screwed and removed from the fixed screw 3.

[0027] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims, not the foregoing description, and all variations within the meaning and scope of the appended claims are intended to be included herein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An intelligent self-temperature-controlled electric heating tube, characterized by: The invention comprises a wiring fixing plate (1) and a heating rod (2), wherein a fixed screw (3) is fixed on the outer surface of the wiring fixing plate (1) at the top of the heating rod (2), a sealing ring plate (6) is fixedly sleeved on the outer surface of the wiring fixing plate (1) at the bottom of the fixed screw (3), a fixed sleeve (4) is threadedly sleeved on the outer side of the fixed screw (3), a buoyancy positioning plate (5) is fixed on the lower outer surface of the fixed sleeve (4), and a plurality of limit strips (7) are equidistantly fixed on the outer surface of the fixed sleeve (4) at the top of the buoyancy positioning plate (5).

2. The intelligent self-temperature-controlled electric heating tube according to claim 1 is characterized in that: The outer surface of the fixed spiral tube (3) and the inner wall of the buoyancy positioning plate (5) are provided with mutually matching threads, and the outer ring diameter of the fixed sleeve (4) is smaller than the outer ring diameter of the sealing ring plate (6).

3. The intelligent self-temperature-controlled electric heating tube according to claim 1 is characterized in that: A sealing rubber pad (14) is glued and fixed to the top surface of the fixed sleeve (4), and a sealing groove (15) is provided on the inner edge of the bottom of the sealing ring plate (6) to cooperate with the sealing rubber pad (14). Both the sealing rubber pad (14) and the sealing groove (15) are arranged in a ring shape to cooperate with the fixed spiral tube (3).

4. The intelligent self-temperature-controlled electric heating tube according to claim 1 is characterized in that: The sealing ring plate (6) is symmetrically provided with movable grooves (8), and a movable insert (9) is slidably inserted into each movable groove (8), and a limiting plate (10) is fixed to the side of one end of the movable insert (9) extending below the sealing ring plate (6). A movable pull rod (11) is inserted into the movable insert (9), and a limiting clamping plate (12) is fixed to one end of the movable pull rod (11) extending below the movable insert (9). A spring (13) is sleeved on the movable pull rod (11) on the top surface of the movable insert (9), and the upper and lower ends of the spring (13) are respectively fixed to the movable pull rod (11) and the movable insert (9).

5. The intelligent self-temperature-controlled electric heating tube according to claim 4 is characterized in that: Each of the position-limiting clips (7) and the movable slot (8) is configured to be in an arc shape that matches the fixed sleeve (4), and the arc length of each of the position-limiting clips (7) is equal to half the arc length of the movable slot (8).

6. The intelligent self-temperature-controlled electric heating tube according to claim 4, characterized in that: The movable insert (9) is configured as a hollow T-shape that matches the movable groove (8), the width of the limit plate (10) is greater than the width of the movable groove (8), and the two movable pull rods (11) are both configured as T-shapes.

7. The intelligent self-temperature-controlled electric heating tube according to claim 4, characterized in that: The height of each of the limiting card plates (12) is smaller than the distance between the top of the limiting card strip (7) and the top of the fixed sleeve (4), each of the limiting card plates (12) is configured to be in an arc shape that matches the fixed sleeve (4), and the arc length of each of the limiting card plates (12) is smaller than the arc length of the fixed sleeve (4) between the two limiting card strips (7).

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