Flange electric heater safe to use

Abstract

The utility model discloses a flange electric heater safe to use, which comprises a heating cylinder, the heating cylinder is connected with a heat insulation mechanism, the heat insulation mechanism comprises two heat insulation covers and a connecting cover, the connecting cover is movably connected with the heat insulation covers, the outer side of the heating cylinder is connected with two supporting plates, the heat insulation covers are connected with the supporting plates in a sliding manner, and the connecting cover is connected with the supporting plates. The connecting cover is connected with a driving mechanism used for driving the two heat insulation covers to be close to or away from each other, the driving mechanism comprises two threaded seats, a rotating column, conical teeth, a fluted disc and a rotating column, the rotating column is used for driving the two threaded seats to be close to or away from each other, and the threaded seats are connected to the tops of the corresponding heat insulation covers; and the rotating column is connected with a positioning mechanism for positioning the rotating column. The heat insulation cover and the connecting cover can prevent people from being scalded when touching the heating cylinder by mistake, use is safe and reliable, meanwhile, the length of the heat insulation mechanism is adjustable so as to meet protection of heating cylinders of different sizes, and applicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to a flange electric heater that is safe to use. Background Art

[0002] Flange-type electric heaters utilize U-shaped tubular heating elements. These elements are assembled on flange covers according to power configuration requirements and are designed to meet specific heating media specifications. Once inserted into the material being heated, the element generates a significant amount of heat, which is then transferred to the heated medium, raising its temperature to meet the desired process requirements. When the medium temperature reaches the setpoint required by the process, the control system adjusts the heater's output power based on the temperature sensor signal and PID calculations, achieving temperature control of the heating element's resistive load.

[0003] When the existing electric heater is in use, the surface temperature of the heating tube is at a high state. If a person accidentally touches the heating tube, it will cause burns, which poses a great safety hazard. Utility Model Content

[0004] The purpose of the utility model is to provide a flange electric heater that is safe to use and can prevent people from accidentally touching the heating tube and getting burned. It is safe and reliable to use and solves the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a flange electric heater that is safe to use, comprising a heating tube, wherein the heating tube is connected to a heat insulation mechanism, wherein the heat insulation mechanism comprises two heat insulation covers and a connecting cover, wherein the connecting cover is movably connected to the heat insulation cover, two support plates are connected to the outer side of the heating tube, wherein the heat insulation cover is slidably connected to the support plates, and the connecting cover is connected to a driving mechanism for driving the two heat insulation covers to move closer to or away from each other, wherein the driving mechanism comprises two threaded seats, a rotating column, conical teeth, a toothed disk, and a rotating column, wherein the rotating column is used to drive the conical teeth to rotate, wherein the conical teeth match the toothed disk, and the toothed disk is connected to the rotating column, wherein the rotating column is used to drive the two threaded seats to move closer to or away from each other, wherein the threaded seat is connected to the top of the corresponding heat insulation cover, and the rotating column is connected to a positioning mechanism for positioning the rotating column.

[0006] Preferably, the driving mechanism further includes a fixed seat and a second rotary handle, wherein the second rotary handle is connected to one end of the rotating column, the rotating column is rotatably connected to the fixed seat, and the end of the fixed seat is fixedly connected to the support plate.

[0007] Preferably, the rotating column is threadedly connected to two threaded seats, and the internal threads of the two threaded seats are in opposite directions.

[0008] Preferably, the conical teeth are connected to the other end of the rotating column, and the conical teeth are meshed with the gear disc.

[0009] Preferably, the positioning mechanism includes a positioning protrusion, a positioning plate, a stud, a rotary handle, and a pressure block. The positioning protrusion is connected to the inner side of the positioning plate, the rotary handle is used to drive the stud to rotate, the stud is used to drive the positioning plate to move back and forth, the pressure block is connected to the positioning plate, and the pressure block matches the rotating column.

[0010] Preferably, one end of the stud is rotatably connected to the support plate, and the other end is fixedly connected to the rotary handle.

[0011] Preferably, a plurality of positioning grooves are provided on the outer side of the support plate, the positioning grooves match the positioning holes provided on the heat insulation cover, and the positioning holes match the positioning protrusions.

[0012] Preferably, the top of the heat shield is connected to a guide seat, and a guide column is slidably connected between the two guide seats.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can prevent people from accidentally touching the heating tube and getting burned by being provided with a heat insulation mechanism, a driving mechanism, a positioning mechanism, a heat insulation cover and a connecting cover, and is safe and reliable to use. Furthermore, the second rotatable handle drives the conical teeth to rotate, and the conical teeth cooperate with the toothed disc to realize the rotation of the rotating column, so that the two heat insulation covers are close to or away from each other, and the length of the heat insulation mechanism is adjustable, so as to meet the protection of heating tubes of different sizes, and has strong applicability. When the length is adjusted, the first rotating handle drives the stud to rotate, so that the positioning plate moves forward, and the positioning protrusion and the pressure block move forward synchronously. The positioning protrusion passes through the positioning hole of the heat insulation cover and is connected to the positioning groove, and the pressure block is pressed against the rotating column to realize locking of the rotating column, thereby improving the stability of the connection between the two connecting covers and also ensuring the stability of the connection between the heat insulation cover and the heating tube. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front perspective view of the present utility model;

[0015] Figure 2 for Figure 1 A local map of

[0016] Figure 3 It is a top perspective view of the present utility model;

[0017] Figure 4 It is a schematic diagram of the connection structure between the heat insulation cover and the connection cover of the utility model.

[0018] In the figure: 1. Heating tube; 2. Heat insulation cover; 3. Connecting cover; 4. Guide seat; 5. Guide column; 6. Threaded seat; 7. Rotating column; 8. Support plate; 9. Positioning protrusion; 10. Positioning plate; 11. Stud; 12. Rotating handle 1; 13. Slide groove; 14. Rotating handle 2; 15. Rotating column; 16. Fixed seat; 17. Conical teeth; 18. Tooth disc; 19. Press block; 20. Positioning groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figures 1 to 4 The present invention provides a safe flange electric heater, comprising a heating tube 1 connected to a heat insulation mechanism comprising two heat shields 2 and a connecting cover 3. The connecting cover 3 is movably connected to the heat shields 2, and the cross-sections of the connecting cover 3 and the heat shield 2 are arc-shaped. Two support plates 8 are connected to the outside of the heating tube 1. The heat shields 2 are slidably connected to the support plates 8, ensuring stable movement of the heat shields 2. The support plates 8 also provide good support for the heat shields 2 and the connecting cover 3. The arrangement of the heat shields 2 and the connecting cover 3 prevents burns caused by accidental contact with the heating tube 1, making it safe and reliable to use. The connecting cover 3 is connected to a driving mechanism for driving the two heat insulation covers 2 to move closer to or away from each other. The driving mechanism includes two threaded seats 6, a rotating column 7, conical teeth 17, a toothed disc 18, and a rotating column 15. The rotating column 15 is used to drive the conical teeth 17 to rotate. The conical teeth 17 match the toothed disc 18. The toothed disc 18 is connected to the rotating column 7. The rotating column 7 is used to drive the two threaded seats 6 to move closer to or away from each other. The threaded seats 6 are connected to the top of the corresponding heat insulation cover 2. The rotating column 7 is connected to a positioning mechanism for positioning the rotating column 7.

[0021] The drive mechanism also includes a fixed base 16 and a second rotary handle 14. The second rotary handle 14 is connected to one end of a rotating column 15, which is rotatably connected to the fixed base 16. The end of the fixed base 16 is fixedly connected to the support plate 8. The rotatable second rotary handle 14 drives the conical teeth 17 to rotate. The conical teeth 17 cooperate with the toothed disc 18 to rotate the rotating column 7, so that the two heat insulation covers 2 move closer or further away from each other, making the length of the heat insulation mechanism adjustable, thereby meeting the protection requirements of heating tubes 1 of different sizes, and having strong applicability.

[0022] The rotating column 7 is threadedly connected to the two threaded seats 6, and the internal threads of the two threaded seats 6 are in opposite directions.

[0023] The conical teeth 17 are connected to the other end of the rotating column 15 , and are meshed with the toothed disc 18 . The meshed connection has high transmission efficiency and stable transmission ratio. The rotation of the conical teeth 17 can synchronously drive the rotation of the toothed disc 18 .

[0024] The positioning mechanism includes a positioning protrusion 9, a positioning plate 10, a stud 11, a rotary handle 12, and a pressure block 19. The positioning protrusion 9 is connected to the inner side of the positioning plate 10. The rotary handle 12 is used to drive the stud 11 to rotate. The stud 11 is used to drive the positioning plate 10 to move back and forth. The pressure block 19 is connected to the positioning plate 10, and the pressure block 19 matches the rotating column 7. When the length of the thermal insulation mechanism is appropriate, rotating the rotary handle 12 drives the stud 11 to rotate, driving the positioning plate 10 to move forward, and synchronously drives the positioning protrusion 9 and the pressure block 19 to move forward. The pressure block 19 is pressed against the rotating column 7, which can lock the rotating column 7 and improve the stability of the connection between the two heat insulation covers 2. At the same time, the positioning protrusion 9 passes through the corresponding positioning hole and is connected to the positioning groove 20 to achieve positioning of the heat insulation cover 2 and improve the stability of the connection between the heat insulation cover 2 and the heating tube 1.

[0025] One end of the stud 11 is rotatably connected to the support plate 8 to improve the rotation stability of the stud 11, and the other end is fixedly connected to the handle 12.

[0026] A sliding groove 13 is provided on the side of the fixing seat 16 , and the end of the positioning plate 10 is slidably connected to the sliding groove 13 , thereby improving the stability of the reciprocating movement of the positioning plate 10 and playing a good guiding role.

[0027] A plurality of positioning grooves 20 are provided on the outer side of the support plate 8 . The positioning grooves 20 match the positioning holes provided on the heat shield 2 , and the positioning holes match the positioning protrusions 9 .

[0028] A guide seat 4 is connected to the top of the heat shield 2, and a guide column 5 is slidably connected between the two guide seats 4. When the two heat shields 2 move, the guide column 5 slides relative to the guide seat 4, thereby improving the stability of the movement of the heat shield 2.

[0029] Working Principle: The heat shield 2 and connecting shield 3 provide insulation and protection for the heating tube 1, preventing burns from accidental contact with the heating tube 1. This design ensures safe and reliable use. A rotating handle 14 drives a rotating column 15, which in turn rotates a tapered tooth 17. The tapered tooth 17 mates with a toothed disc 18, driving a rotating column 7. The rotating column 7 engages with two threaded seats 6, moving the two heat shields 2 closer or further apart. The ends of the connecting shield 3 slide within the heat shield 2, adjusting the length of the insulation mechanism to accommodate heating tubes 1 of varying sizes. This design offers a wide range of applications. When the length of the heat insulation mechanism is appropriate, the rotating handle 12 drives the stud 11 to rotate, which can drive the positioning plate 10 to move forward. The positioning plate 10 drives the positioning protrusion 9 and the pressure block 19 to move forward. The positioning protrusion 9 passes through the positioning hole of the heat insulation cover 2 and is connected with the positioning groove 20, thereby improving the stability of the connection between the heat insulation cover 2 and the heating tube 1, and the pressure block 19 is pressed against the rotating column 7 to lock the rotating column 7, thereby improving the stability of the connection between the two heat insulation covers 2 and preventing the handle 2 14 from being turned by mistake to change the distance between the two heat insulation covers 2. It is safe, reliable and practical to use.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange electric heater with safe use, comprising a heating cartridge (1), characterized in that: The heating cylinder (1) is connected to a heat insulation mechanism, which includes two heat insulation covers (2) and a connecting cover (3). The connecting cover (3) is movably connected to the heat insulation cover (2). The outer side of the heating cylinder (1) is connected to two supporting plates (8). The heat insulation cover (2) is slidably connected to the supporting plates (8). The connecting cover (3) is connected to a driving mechanism for driving the two heat insulation covers (2) to move closer to or farther away from each other. The driving mechanism includes two threaded seats (6), a rotating column (7), conical teeth (17), a toothed disc (18), and a rotating column (15). The rotating column (15) is used to drive the conical teeth (17) to rotate. The conical teeth (17) match the toothed disc (18). The toothed disc (18) is connected to the rotating column (7). The rotating column (7) is used to drive the two threaded seats (6) to move closer to or farther away from each other. The threaded seat (6) is connected to the top of the corresponding heat insulation cover (2). The rotating column (7) is connected to a positioning mechanism for positioning the rotating column (7).

2. The safe flange electric heater according to claim 1, characterized in that: The driving mechanism further comprises a fixed seat (16) and a second rotary handle (14), wherein the second rotary handle (14) is connected to one end of a rotating column (15), the rotating column (15) is rotatably connected to the fixed seat (16), and the end of the fixed seat (16) is fixedly connected to the support plate (8).

3. The safe flange electric heater according to claim 1, characterized in that: The rotating column (7) is threadedly connected to the two threaded seats (6), and the internal threads of the two threaded seats (6) are in opposite directions.

4. The flange electric heater with safety in use according to claim 2, characterized in that: The conical teeth (17) are connected to the other end of the rotating column (15), and the conical teeth (17) are meshed and connected with the toothed disc (18).

5. The flange electric heater with safety in use according to claim 1, characterized in that: The positioning mechanism includes a positioning protrusion (9), a positioning plate (10), a stud (11), a rotary handle (12), and a pressure block (19), wherein the positioning protrusion (9) is connected to the inner side of the positioning plate (10), the rotary handle (12) is used to drive the stud (11) to rotate, the stud (11) is used to drive the positioning plate (10) to move back and forth, and the pressure block (19) is connected to the positioning plate (10), and the pressure block (19) matches the rotating column (7).

6. The flange electric heater with safety in use according to claim 5, characterized in that: One end of the stud (11) is rotatably connected to the support plate (8), and the other end is fixedly connected to the rotary handle (12).

7. The flange electric heater with safety in use according to claim 5, characterized in that: A plurality of positioning grooves (20) are provided on the outer side of the support plate (8), the positioning grooves (20) match the positioning holes provided on the heat insulation cover (2), and the positioning holes match the positioning protrusions (9).

8. The safe flange electric heater according to claim 1, characterized in that: The top of the heat shield (2) is connected to a guide seat (4), and a guide column (5) is slidably connected between the two guide seats (4).

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