Electric heating tube supporting screen plate of electric heater

Abstract

The utility model discloses an electric heating tube supporting screen plate of an electric heater in the field of supporting screen plates, which comprises a first mounting plate, a rotating cylinder is rotatably mounted in the middle of the lower surface of the first mounting plate, a second mounting plate is rotatably mounted at the lower end of the outer ring surface of the rotating cylinder, and a first screw rod is vertically inserted in the rotating cylinder in a threaded manner; a fixing net plate is fixed to the surface of the lower end of the first screw rod, a plurality of electric heating pipes are fixed to the lower surface of the first mounting plate at intervals in the circumferential direction, and the electric heating pipes penetrate through the upper surface and the lower surface of the corresponding position of the second mounting plate, so that in the using process, the electric heating pipes with different lengths can be supported and limited; and when the electric heating tubes with different lengths need to be used, the fixed screen plate can be conveniently adjusted, so that the application range of the fixed screen plate during use is ensured, and the fixed screen plate is favorably used.

Description

Technical Field

[0001] The utility model relates to the field of support mesh plates, in particular to a support mesh plate for an electric heating tube of an electric heater. Background Technique

[0002] An electric heater refers to an electrical appliance that uses electric energy to achieve a heating effect. When an electric heater is in use, it has a wide application range, a long service life, and high reliability. The core of the heater principle is energy conversion, and the most common one is to convert electric energy into heat energy. An electric heating tube refers to a tubular electric heating element, which is an electric appliance element that specifically converts electric energy into heat energy.

[0003] The electric heating tube has a metal tube as the outer shell, and spiral electric heating alloy wires are evenly distributed along the central axis inside the tube. The space is filled and compacted with magnesia sand having good insulation and heat conduction performance, and both ends of the tube orifice are sealed with silica gel. This metal-sheathed electric heating element can heat air, metal molds, and various liquids. When using the electric heating tube, a support mesh plate is required to support and limit the electric heating tube.

[0004] However, when the existing support mesh plate is in use, it is not conducive to supporting and limiting electric heating tubes of different lengths. When it is necessary to use electric heating tubes of different lengths, the support mesh plate cannot be conveniently adjusted, which will affect the applicable range when the support mesh plate is in use and is not conducive to the use of the support mesh plate.

[0005] Therefore, we propose a support mesh plate for an electric heating tube of an electric heater. Content of the Utility Model

[0006] The purpose of the utility model is to provide a support mesh plate for an electric heating tube of an electric heater to solve the problems raised in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solutions:

[0008] A support mesh plate for an electric heating tube of an electric heater includes a first mounting plate. A rotating cylinder is rotatably mounted in the middle of the lower surface of the first mounting plate. The lower end of the outer ring surface of the rotating cylinder is rotatably mounted with a second mounting plate. A first screw rod is threadedly inserted vertically in the rotating cylinder. A fixed mesh plate is fixed on the lower surface of the first screw rod. A plurality of electric heating tubes are fixedly arranged at intervals along the circumferential direction on the lower surface of the first mounting plate, and the electric heating tubes all penetrate through the upper surface and the lower surface at the corresponding positions on the second mounting plate.

[0009] As a further scheme of the utility model: Fixing cylinders in a vertical state are respectively fixed in the middle of both sides of the lower surface of the first mounting plate. The lower end surfaces of the fixing cylinders are respectively fixedly connected to the middle parts of the corresponding sides of the upper surface of the second mounting plate. Corresponding to the inner ring surfaces of the fixing cylinders, retaining holes are respectively opened in the middle parts of both sides of the second mounting plate, and the retaining holes all penetrate through the upper surface and the lower surface at the middle parts of the corresponding sides on the second mounting plate.

[0010] By adopting the above technical solution: the setting of the fixed cylinder helps to fix and limit the first mounting plate and the second mounting plate.

[0011] As a further solution of the present utility model: the fixed mesh plate is in a horizontal state, a moving ring is fixed on the outer side of the outer ring surface of the fixed mesh plate, and matching limiting rods are fixed at the middle parts of both sides of the upper surface of the moving ring corresponding to the retaining holes.

[0012] By adopting the above technical solution: the setting of the fixed mesh plate can fix and limit the moving ring, which is convenient for stably using the moving ring.

[0013] As a further solution of the present utility model: the limiting rods are in a vertical state, the upper ends of the limiting rods are inserted into the retaining holes on the second mounting plate, and the outer ring surface of the limiting rods is in a state of being matched and fitted with the inner ring surface of the retaining holes on the second mounting plate and the inner ring surface of the inner side of the fixed cylinder.

[0014] By adopting the above technical solution: the setting of the retaining holes on the second mounting plate helps to limit the limiting rods.

[0015] As a further solution of the present utility model: the lower end of the outer ring surface of the rotating cylinder is rotatably connected to the corresponding position on the second mounting plate through a bearing, and the upper end of the rotating cylinder penetrates through the upper surface and the lower surface of the middle part of the first mounting plate.

[0016] By adopting the above technical solution: the setting of the first mounting plate and the second mounting plate helps to limit the rotating cylinder.

[0017] As a further solution of the present utility model: the upper end of the outer ring surface of the rotating cylinder is rotatably connected to the middle part of the first mounting plate through a bearing, a rotating block is fixed on the upper end surface of the rotating cylinder, and a plurality of convex blocks are fixed at intervals along the circumferential direction on the outer ring surface of the rotating block.

[0018] By adopting the above technical solution: the setting of the convex blocks can prevent slipping on the outer ring surface of the rotating block, which is convenient for stably rotating the rotating block.

[0019] As a further solution of the present utility model: the electric heating tubes are in a vertical state, the fixed mesh plate is located below the bottom of the electric heating tubes, and the upper ends of the electric heating tubes all penetrate through the upper surface and the lower surface of the corresponding positions on the first mounting plate.

[0020] By adopting the above technical solution: the setting of the fixed mesh plate helps to limit the bottom of the electric heating tubes.

[0021] As a further solution of the present utility model: Second screws are fixedly arranged on the upper end surfaces of the electric heating tubes. The second screws are in a vertical state, and matching nuts are threadedly sleeved on the outer sides of the second screws.

[0022] By adopting the above technical solution: The setting of the nuts helps to limit the position between the second screws and the first mounting plate.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. In the present utility model, when the rotating cylinder rotates, the first screw threadedly connected to the rotating cylinder moves vertically along the inner side of the rotating cylinder. When the first screw moves vertically, it can drive the fixed net plate to move vertically. During use, it helps to support and limit electric heating tubes of different lengths. When electric heating tubes of different lengths need to be used, the fixed net plate can be conveniently adjusted to ensure the applicable range of the fixed net plate during use, which is helpful for the use of this fixed net plate.

[0025] 2. In the present utility model, the first mounting plate can block and limit the second screw through the nut, which helps to stably use the second screw. The second screw can limit the electric heating tube, which is convenient for stably using the electric heating tube. The retaining holes on the fixed cylinder and the second mounting plate can limit the position of the limiting rod, which is convenient for stably moving the limiting rod vertically. The limiting rod can limit the moving ring, which helps to stably move the moving ring vertically. The moving ring can limit the fixed net plate, so as to stably move the fixed net plate vertically. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic structural view of the present utility model;

[0027] Figure 2 is a schematic structural view of the fixed cylinder of the present utility model;

[0028] Figure 3 is a schematic structural view of the limiting rod of the present utility model;

[0029] Figure 4 is a schematic structural view of the rotating block of the present utility model.

[0030] In the figure: 1. First mounting plate; 2. Second mounting plate; 3. Fixed cylinder; 4. Rotating cylinder; 5. Rotating block; 6. Convex block; 7. Moving ring; 8. Limiting rod; 9. First screw; 10. Second screw; 11. Fixed net plate; 12. Electric heating tube; 13. Retaining hole; 14. Nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0032] Please refer to Figures 1 to 4 , in the embodiment of the present invention, a heating wire support grid plate of an electric heater includes a first mounting plate 1. A rotating cylinder 4 is rotatably mounted in the middle of the lower surface of the first mounting plate 1. A second mounting plate 2 is rotatably mounted at the lower end of the outer ring surface of the rotating cylinder 4. A first screw rod 9 is threadedly inserted in the rotating cylinder 4 in the vertical direction. A fixed grid plate 11 is fixed on the lower surface of the first screw rod 9. A plurality of heating wires 12 are fixedly arranged at intervals along the circumferential direction on the lower surface of the first mounting plate 1. The heating wires 12 all penetrate through the upper surface and the lower surface of the corresponding positions on the second mounting plate 2. When the rotating cylinder 4 rotates, the first screw rod 9 threadedly connected to the rotating cylinder 4 moves vertically along the inner side of the rotating cylinder 4. When the first screw rod 9 moves vertically, it can drive the fixed grid plate 11 to move vertically. It is helpful to support and limit heating wires 12 of different lengths during use. When heating wires 12 of different lengths need to be used, the fixed grid plate 11 can be conveniently adjusted to ensure the applicable range of the fixed grid plate 11 during use, which is helpful for the use of the fixed grid plate 11.

[0033] Among them, fixing cylinders 3 in a vertical state are respectively fixed in the middle of both sides of the lower surface of the first mounting plate 1. The lower surface of each fixing cylinder 3 is fixedly connected to the middle of the corresponding side of the upper surface of the second mounting plate 2. Retaining holes 13 are respectively formed in the middle of both sides of the second mounting plate 2 corresponding to the inner ring surfaces of the fixing cylinders 3. The retaining holes 13 all penetrate through the upper surface and the lower surface of the middle of the corresponding side of the second mounting plate 2. The fixing cylinders 3 are helpful for fixing and limiting between the first mounting plate 1 and the second mounting plate 2; the fixed grid plate 11 is in a horizontal state. A moving ring 7 is fixed on the outer side of the outer ring surface of the fixed grid plate 11. Limiting rods 8 matched with the retaining holes 13 are respectively fixed in the middle of both sides of the upper surface of the moving ring 7. The fixed grid plate 11 can fix and limit the moving ring 7, which is convenient for stably using the moving ring 7.

[0034] The limiting rod 8 is in a vertical state. The upper end of the limiting rod 8 is inserted into the retaining hole 13 on the second mounting plate 2. A state of matching and fitting exists between the outer ring surface of the limiting rod 8 and the inner ring surface inside the retaining hole 13 on the second mounting plate 2 and the inner ring surface inside the fixing cylinder 3. The retaining hole 13 on the second mounting plate 2 helps to limit the limiting rod 8. The lower end of the outer ring surface of the rotating cylinder 4 is rotatably connected to the corresponding position on the second mounting plate 2 through a bearing. The upper end of the rotating cylinder 4 penetrates through the upper and lower surfaces of the middle part of the first mounting plate 1. The first mounting plate 1 and the second mounting plate 2 help to limit the rotating cylinder 4.

[0035] The upper end of the outer ring surface of the rotating cylinder 4 is rotatably connected to the middle part of the first mounting plate 1 through a bearing. A rotating block 5 is fixed on the upper end surface of the rotating cylinder 4. A number of convex blocks 6 are fixedly arranged at intervals along the circumferential direction on the outer ring surface of the rotating block 5. The convex blocks 6 can provide anti-slip function on the outer ring surface of the rotating block 5, facilitating the stable rotation of the rotating block 5. The electric heating tube 12 is in a vertical state. The fixed mesh plate 11 is located below the bottom of the electric heating tube 12. The upper ends of the electric heating tubes 12 all penetrate through the upper and lower surfaces of the corresponding positions on the first mounting plate 1. The fixed mesh plate 11 helps to limit the bottom of the electric heating tube 12. Second screws 10 are fixedly arranged on the upper end surfaces of the electric heating tubes 12. The second screws 10 are in a vertical state. Matching nuts 14 are threadedly sleeved on the outer sides of the second screws 10. The nuts 14 help to limit between the second screws 10 and the first mounting plate 1.

[0036] The working principle of the present utility model is: during the use process, the outer sides of the first mounting plate 1 and the second mounting plate 2 are respectively corresponding to the corresponding positions inside the external electric heater, and the outer sides of the first mounting plate 1 and the second mounting plate 2 are respectively installed with the corresponding positions inside the external electric heater, so as to facilitate the stable use of the first mounting plate 1 and the second mounting plate 2. The first mounting plate 1 can support and limit each part of the components assembled on the first mounting plate 1, which helps to stably use each part of the components assembled on the first mounting plate 1. The second mounting plate 2 can support and limit each part of the components assembled on the second mounting plate 2, facilitating the stable use of each part of the components assembled on the second mounting plate 2.

[0037] When it is necessary to assemble the electric heating tube 12 and the first mounting plate 1, the second screw 10 at the upper end of the electric heating tube 12 is extended to the upper side of the first mounting plate 1 through the corresponding position on the first mounting plate 1. Further, the nut 14 is threadedly sleeved on the outer side of the second screw 10. The first mounting plate 1 can block and limit the nut 14 on the upper side of the first mounting plate 1. The first mounting plate 1 can block and limit the second screw 10 through the nut 14, which helps to stably use the second screw 10. The second screw 10 can limit the electric heating tube 12, facilitating the stable use of the electric heating tube 12.

[0038] When it is necessary to adjust the position of the fixed net plate 11 according to the length of the electric heating tube 12, the rotating block 5 is rotated through the convex block 6. The convex block 6 can prevent slipping on the outer ring surface of the rotating block 5, avoiding hand slipping during the rotation of the rotating block 5 and affecting the use, which helps to stably rotate the rotating block 5. When the rotating block 5 rotates, it can drive the rotating cylinder 4 to rotate. The fixed cylinder 3 can fix and limit between the first mounting plate 1 and the second mounting plate 2, facilitating the stable use of the first mounting plate 1 and the second mounting plate 2. The first mounting plate 1 and the second mounting plate 2 can limit the rotating cylinder 4, which helps to stably rotate the rotating cylinder 4. When the rotating cylinder 4 rotates, the first screw rod 9 threadedly connected to the rotating cylinder 4 moves vertically along the inside of the rotating cylinder 4.

[0039] When the first screw rod 9 moves vertically, it can drive the fixed net plate 11 to move vertically. When the fixed net plate 11 moves vertically, it can drive the moving ring 7 to move vertically. When the moving ring 7 moves vertically, it can drive the limiting rod 8 to move vertically in the retaining hole 13 on the second mounting plate 2 and inside the fixed cylinder 3. The fixed cylinder 3 and the retaining hole 13 on the second mounting plate 2 can limit the limiting rod 8, facilitating the stable vertical movement of the limiting rod 8. The limiting rod 8 can limit the moving ring 7, which helps to stably move the moving ring 7 vertically. The moving ring 7 can limit the fixed net plate 11, so as to stably move the fixed net plate 11 vertically. After moving the upper side of the fixed net plate 11 into contact with the bottom of the electric heating tube 12, the fixed net plate 11 can support and limit the bottom of the electric heating tube 12, which helps to stably use the electric heating tube 12. When the electric heating tube 12 needs to be used, the electric heating tube 12 is turned on. In the opened state of the electric heating tube 12, the electric heating tube 12 can heat up the medium to be heated in the external electric heater.

[0040] During the use process, it helps to support and limit electric heating tubes 12 of different lengths. When electric heating tubes 12 of different lengths need to be used, the fixed net plate 11 can be conveniently adjusted to ensure the applicable range of the fixed net plate 11 during use, which helps to use the fixed net plate 11.

[0041] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A heating tube support mesh plate of an electric heater, comprising a first mounting plate (1), characterized in that: A rotating cylinder (4) is rotatably mounted in the middle of the lower surface of the first mounting plate (1), a second mounting plate (2) is rotatably mounted at the lower end of the outer ring surface of the rotating cylinder (4), a first screw rod (9) is threadedly inserted in the rotating cylinder (4) along a vertical direction, a fixed mesh plate (11) is fixed to the lower end surface of the first screw rod (9), a plurality of electric heating tubes (12) are fixed to the lower surface of the first mounting plate (1) at intervals along a circumferential direction, and the electric heating tubes (12) all penetrate the upper surface and the lower surface of the second mounting plate (2) at corresponding positions.

2. The electric heating tube support mesh plate of an electric heater according to claim 1, characterized in that: A fixing cylinder (3) in a vertical state is fixed in the middle of both sides of the lower surface of the first mounting plate (1), and the lower end surface of the fixing cylinder (3) is fixedly connected to the middle of the corresponding side of the upper surface of the second mounting plate (2). The middle of both sides of the second mounting plate (2) corresponds to the inner ring surface of the fixing cylinder (3) and is provided with matching retaining holes (13), and the retaining holes (13) penetrate the upper surface and the lower surface of the middle of the corresponding side of the second mounting plate (2).

3. The electric heating tube support mesh plate of an electric heater according to claim 2, characterized in that: The fixed mesh plate (11) is in a horizontal state, a movable ring (7) is fixed on the outer side of the outer ring surface of the fixed mesh plate (11), and matching limit rods (8) are fixed in the middle of both sides of the upper surface of the movable ring (7) corresponding to the retention holes (13).

4. The electric heating tube supporting mesh plate of an electric heater according to claim 3, characterized in that: The limiting rod (8) is in a vertical state, and the upper end of the limiting rod (8) is inserted into the retaining hole (13) on the second mounting plate (2). The outer ring surface of the limiting rod (8) is in a matching and fitting state with the inner ring surface inside the retaining hole (13) on the second mounting plate (2) and the inner ring surface inside the fixing tube (3).

5. The electric heating tube supporting mesh plate of an electric heater according to claim 4, characterized in that: The lower end of the outer ring surface of the rotating cylinder (4) is rotatably connected to a corresponding position on the second mounting plate (2) via a bearing, and the upper end of the rotating cylinder (4) penetrates the upper surface and the lower surface of the middle part of the first mounting plate (1).

6. The electric heating tube supporting mesh plate of an electric heater according to claim 5, characterized in that: The upper end of the outer ring surface of the rotating cylinder (4) is rotatably connected to the middle part of the first mounting plate (1) via a bearing, a rotating block (5) is fixed to the upper end surface of the rotating cylinder (4), and a plurality of protrusions (6) are fixed at intervals along the circumferential direction on the outer ring surface of the rotating block (5).

7. The electric heating tube supporting mesh plate of an electric heater according to claim 6, characterized in that: The electric heating tube (12) is in a vertical state, the fixed mesh plate (11) is located at the lower side of the bottom of the electric heating tube (12), and the upper end of the electric heating tube (12) penetrates the upper surface and the lower surface of the corresponding position on the first mounting plate (1).

8. The electric heating tube supporting mesh plate of an electric heater according to claim 7, characterized in that: A second screw rod (10) is fixed to the upper end surface of the electric heating tube (12), the second screw rod (10) is in a vertical state, and a matching nut (14) is threadedly sleeved on the outer side of the second screw rod (10).

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