Electric heating tube of sealing porcelain head with electric heating tube sleeve

Abstract

The utility model relates to the technical field of electric heating tubes, and discloses an electric heating tube of a sealing porcelain head with an electric heating tube sleeve, which comprises an electric heating tube, two ends of the electric heating tube are respectively sleeved with an internal ceramic sleeve, the tail part of each internal ceramic sleeve is provided with a lead hole II, and the external part of each internal ceramic sleeve is fixedly sleeved with a metal sleeve. The surface of the metal sleeve is fixedly provided with a connecting frame, the tail part of the metal sleeve is fixedly connected with a lead frame, the tail part of the lead frame is provided with a lead hole I, the waist part of the metal sleeve is provided with a reinforcing plate, the metal sleeve is fixedly connected with the internal ceramic sleeve through the reinforcing plate, and the internal ceramic sleeve is internally provided with two extrusion elastic sheets. According to the electric heating tube reinforcing device, the transmission chain drives the transmission fluted disc to rotate by rotating the rotary knob, at the moment, the threaded rod located in the transmission fluted disc drives the extrusion elastic piece to move inwards or outwards, and therefore electric heating tubes with different tube diameters can be reinforced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating pipes, in particular to an electric heating pipe with a sealed porcelain head having an electric heating pipe sleeve. Background Art

[0002] Electric heating tubes, also known as heating tubes and heating tubes, have the scientific name tubular electric heater elements. They are electrical components that have coiled heating wires placed in metal tubes and are specifically designed to convert electrical energy into thermal energy.

[0003] The existing electric heating tube terminal has defects such as poor insulation sealing and complex sealing structure. At the same time, the electrode leads in the electric heating tube terminal are in the same joint. Once the electric heating tube is overloaded, short circuits are likely to occur in different electrode leads in the same joint.

[0004] The existing patent discloses an electric heating tube with a sealed porcelain head with an electric heating tube sleeve (publication number CN104023423A), which belongs to the field of electric heating appliances. The connection end of the electric heating tube is provided with an electric heating tube sleeve that covers the electric heating tube and a porcelain head that is integrated with a cavity that accommodates an installation nut, a power cord and a crimping washer. The outer edge of the cavity of the porcelain head is provided with a power cord outlet for leading out the power cord. The end of the electric heating tube connection screw is also provided with a porcelain head cover, and the porcelain head cover is provided with a crimping nut cavity that can accommodate a crimping nut. Since the outer tube of the electric heating tube inevitably has different diameters at both ends during the production process, in the technology disclosed in the patent, inserting the outer tube of the electric heating tube into the sleeve will inevitably cause the sleeves at both ends to be inconsistent in tightness, thereby causing looseness and shaking. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an electric heating tube with a sealed porcelain head having an electric heating tube sleeve, which solves the problems raised in the above-mentioned background technology.

[0006] To solve the above technical problems, according to one aspect of the utility model, more specifically, an electric heating tube with a sealed ceramic head with an electric heating tube sleeve, comprising an electric heating tube, both ends of the electric heating tube are sleeved with an internal ceramic sleeve, the tail of the internal ceramic sleeve is provided with a second wire hole, the external fixed sleeve of the internal ceramic sleeve is provided with a metal sleeve, and a connecting frame is fixedly installed on the surface of the metal sleeve;

[0007] The tail of the metal sleeve is fixedly connected with a lead frame, and a lead hole is opened at the tail of the lead frame. A reinforcing plate is arranged at the waist of the metal sleeve, and the metal sleeve is fixedly connected with the internal ceramic sleeve through the reinforcing plate.

[0008] Furthermore, two squeezing springs are provided inside the inner ceramic sleeve, and when the electric heating tube is inserted into the inner side of the inner ceramic sleeve, the squeezing springs squeeze and fix the outer wall of the electric heating tube.

[0009] Furthermore, two limiting grooves are provided between the metal sleeve and the inner ceramic sleeve, and freely rotatable rotating gear discs are provided inside the two limiting grooves, wherein the hole wall of the rotating gear disc is provided with a threaded groove.

[0010] Furthermore, a threaded rod is fixedly connected to one side surface of the extrusion spring sheet, and a threaded end of the threaded rod penetrates into the interior of the rotating gear disc and is threadedly connected thereto.

[0011] Furthermore, through holes are provided on both sides of the lead frame, and rotating knobs are provided inside the through holes on both sides, and a fixed gear disc is sleeved on the other end of the rotating knob.

[0012] Furthermore, a transmission chain is provided on the transmission sleeve between the fixed gear plate and the rotating gear plate, wherein the rotating knob drives the rotating gear plate to rotate through the transmission chain.

[0013] The utility model has the following beneficial effects on the electric heating tube with a sealed porcelain head and an electric heating tube sleeve:

[0014] (1) The utility model uses a double-layer sleeve head with a metal sleeve and an internal ceramic sleeve to cover both ends of the electric heating pipe, which can not only achieve heat insulation and electrical insulation effects, but also fix the posture of the electric heating pipe.

[0015] (2) The utility model rotates the knob to allow the transmission chain to drive the transmission gear plate to rotate. At this time, the threaded rod located inside the transmission gear plate will drive the extrusion spring to move inward or outward, so that electric heating tubes with different diameters can be reinforced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a top view of the metal sleeve structure in the utility model;

[0019] Figure 3 For this utility model Figure 2 A magnified image of area A;

[0020] Figure 4 This is an exploded view of the internal structure of the metal sleeve of the utility model.

[0021] In the figure: 1. Electric heating tube; 2. Metal sleeve; 3. Internal ceramic sleeve; 4. Connecting frame; 5. Wire rack; 6. Wire hole 1; 7. Extrusion spring; 8. Fixed gear plate; 9. Rotating knob; 10. Transmission chain; 11. Threaded rod; 12. Rotating gear plate; 13. Limiting groove; 14. Reinforcement plate; 15. Through hole; 16. Wire hole 2. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0023] like Figure 1-4 As shown, according to one aspect of the utility model, there is provided an electric heating tube with a sealed ceramic head with an electric heating tube sleeve, comprising an electric heating tube 1, both ends of the electric heating tube 1 are sleeved with an internal ceramic sleeve 3, the tail of the internal ceramic sleeve 3 is provided with a wire hole 16, the outer fixed sleeve of the internal ceramic sleeve 3 is provided with a metal sleeve 2, and the surface of the metal sleeve 2 is fixedly installed with a connecting frame 4 (such as Figure 1 As shown), the connecting frame 4 is used to facilitate the installation of the electric heating tube 1 inside the lampshade or heating equipment.

[0024] The tail of the metal sleeve 2 is fixedly connected with a wire frame 5, and the tail of the wire frame 5 is provided with a wire hole 6. The waist of the metal sleeve 2 is provided with a reinforcing plate 14, and the metal sleeve 2 is fixedly connected with the internal ceramic sleeve 3 through the reinforcing plate 14 (such as Figure 2 As shown), the double-layer design of the metal sleeve 2 and the internal ceramic sleeve 3 is used to cover the two ends of the electric heating tube 1 to achieve heat insulation and electrical insulation effects.

[0025] In this embodiment, two squeezing springs 7 are provided inside the inner ceramic sleeve 3. When the electric heating tube 1 is inserted into the inner side of the inner ceramic sleeve 3, the squeezing springs 7 squeeze and fix the outer wall of the electric heating tube 1 (such as Figure 2 As shown), even if the outer tube of the electric heating tube 1 has different diameters at both ends during the production process, the outer tube of the electric heating tube 1 will not easily shake when inserted into the sleeve.

[0026] In this embodiment, two limit grooves 13 are provided between the metal sleeve 2 and the inner ceramic sleeve 3, and the insides of the two limit grooves 13 are provided with a freely rotatable rotating toothed disc 12, wherein the hole wall of the rotating toothed disc 12 is provided with a threaded groove (such as Figure 3 As shown), the toothed disc 12 can be conveniently rotated to be threadedly connected to the threaded rod 11 through the threaded groove.

[0027] In this embodiment, a threaded rod 11 is fixedly connected to one side surface of the extrusion spring piece 7 , and a threaded end of the threaded rod 11 penetrates into the interior of the rotating gear disc 12 and is threadedly connected thereto.

[0028] In this embodiment, through holes 15 are provided on both sides of the lead frame 5, and a rotating knob 9 is provided inside the through holes 15 on both sides, and a fixed toothed disc 8 (such as Figure 4 As shown), the surfaces of the fixed toothed disc 8 and the rotating toothed disc 12 are provided with anti-skid grooves, which can ensure that the transmission chain 10 will not slip when transmitting.

[0029] In this embodiment, a transmission chain 10 is provided on a transmission sleeve between the fixed gear plate 8 and the rotating gear plate 12 , wherein the rotating knob 9 drives the rotating gear plate 12 to rotate through the transmission chain 10 .

[0030] The working principle of the device is: through the double-layer design of the metal sleeve 2 and the internal ceramic sleeve 3, it is sleeved on both ends of the electric heating tube 1 to achieve heat insulation and electrical insulation effects, and can also fix the posture of the electric heating tube 1.

[0031] When the diameters of the electric heating tube 1 are different or the models are different, when the electric heating tube 1 is inserted into the sleeve, it is only necessary to insert a screwdriver into the inside of the rotating knob 9 for adjustment (such as Figure 4 As shown in FIG. 1 , when the knob 9 is turned, the rotating toothed disc 12 is driven to rotate through the transmission chain 10. The threaded rod 11 located inside the rotating toothed disc 12 moves inward or outward (as shown in FIG. 1 ). Figure 3 As shown), the extruded spring piece 7 can be pushed out to fix the electric heating tubes 1 with different diameters.

[0032] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. An electric heating tube with a sealed ceramic head and an electric heating tube sleeve, comprising an electric heating tube (1), characterized in that: Both ends of the electric heating tube (1) are sleeved with an internal ceramic sleeve (3), a second wire hole (16) is provided at the tail of the internal ceramic sleeve (3), a metal sleeve (2) is fixedly sleeved outside the internal ceramic sleeve (3), and a connecting frame (4) is fixedly mounted on the surface of the metal sleeve (2); The tail of the metal sleeve (2) is fixedly connected to a wire rack (5), and a wire hole (6) is provided at the tail of the wire rack (5). A reinforcing plate (14) is provided at the waist of the metal sleeve (2), and the metal sleeve (2) is fixedly connected to the internal ceramic sleeve (3) via the reinforcing plate (14).

2. The electric heating tube with a sealed ceramic head and an electric heating tube sleeve according to claim 1, characterized in that: Two squeezing springs (7) are arranged inside the inner ceramic sleeve (3); when the electric heating tube (1) is inserted into the inner side of the inner ceramic sleeve (3), the squeezing springs (7) squeeze and fix the outer wall of the electric heating tube (1).

3. The electric heating tube with a sealed ceramic head and an electric heating tube sleeve according to claim 2, characterized in that: Two limiting grooves (13) are provided between the metal sleeve (2) and the inner ceramic sleeve (3), and freely rotatable rotating toothed discs (12) are provided inside the two limiting grooves (13), wherein the hole wall of the rotating toothed disc (12) is provided with a thread groove.

4. The electric heating tube with a sealed ceramic head and an electric heating tube sleeve according to claim 3, characterized in that: A threaded rod (11) is fixedly connected to one side surface of the extrusion spring sheet (7), and the threaded end of the threaded rod (11) penetrates into the interior of the rotating toothed disc (12) and is threadedly connected thereto.

5. The electric heating tube with a sealed ceramic head and an electric heating tube sleeve according to claim 4, characterized in that: Through holes (15) are provided on both sides of the lead frame (5), and rotating knobs (9) are provided inside the through holes (15) on both sides, and a fixed toothed disc (8) is sleeved on the other end of the rotating knob (9).

6. The electric heating tube with a sealed ceramic head and an electric heating tube sleeve according to claim 5, characterized in that: A transmission chain (10) is provided on a transmission sleeve between the fixed toothed disc (8) and the rotating toothed disc (12), wherein the rotating knob (9) drives the rotating toothed disc (12) to rotate via the transmission chain (10).

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