MgO filling and compacting device for electric heating tube

By designing the MgO filling and compacting device for the electric heating pipe, the problems of magnesium oxide powder spilling and damage to the pipe wall are solved, and stable fixed and efficient and dense magnesium oxide powder filling are achieved, which improves the safety and service life of the electric heating pipe.

CN223132410UActive Publication Date: 2025-07-22JIANGSU HUOLONG ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202421939940.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-07-22
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

In the prior art, during the filling process of MgO of the electric heating pipe in the prior art, magnesium oxide powder is easily spilled and causing waste, and manual tapping of the pipe wall may damage the pipe wall, affecting safety.

Method used

A kind of electric heating tube MgO filling and compacting device is designed, and the heating metal tube is fixed and vibratingly filled through components such as limiting rods, limiting springs, clamps, sliding sleeves, transmission gears, etc., to avoid spilling magnesium oxide powder and improve compaction.

Benefits of technology

The stable fixation of heated metal pipes of different diameters is achieved to avoid waste of magnesium oxide powder, and the compactness of magnesium oxide powder is improved by vibrating the exhaust air, ensuring safety and efficient filling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electric heating tube processing, in particular to an MgO filling and compacting device for an electric heating tube, which comprises a filling workbench, and a limiting rod is mounted on the inner wall of the filling workbench. According to the MgO filling and compacting device for the electric heating pipe, the sliding sleeve, the fixing base, the sliding rod, the reset spring, the connecting shaft, the power motor and the transmission gear are arranged, the power motor drives the transmission gear and the sliding sleeve to move in a meshed mode, at the moment, the filling workbench is pulled to move along the sliding rod, and meanwhile the reset spring is extruded; when the transmission gear rotates until no gear ring exists, the transmission gear is separated from the sliding sleeve, at the moment, the reset spring pushes the filling workbench to reset through self-elasticity, and the filling workbench drives the heating metal pipe and the feeding hopper to vibrate at the same frequency in the reciprocating manner, so that internal air of the magnesium oxide powder is discharged through vibration, and the compactness of the magnesium oxide powder is improved; and the purpose of compaction is achieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric heating tube processing, and specifically relates to an MgO filling and compaction device for electric heating tubes. Background Technique

[0002] MgO is the chemical formula of magnesium oxide, and magnesium oxide is the filler inside the heating tube, which plays the roles of fixing, insulating and heat conducting. Magnesium oxide has good heat conductivity, can effectively transfer heat, and has sufficient insulation performance and electric strength to ensure the safe use of the heating tube. When the heating tube is filled with magnesium oxide, the magnesium oxide can fix the position of the heating wire and ensure the stability and reliability of the electric heating element. The application of magnesium oxide in the heating tube not only improves the performance and safety of the heating tube, but also extends its service life. It is an indispensable important material in the electric heating tube.

[0003] Currently, in the prior art:

[0004] Currently, for the MgO filling and compaction of electric heating tubes, after installing the heating wire, magnesium oxide powder is filled into the copper tube so that the magnesium oxide powder isolates the heating wire and the metal tube wall of the electric heating tube. Currently, the magnesium oxide powder is mainly filled manually. However, the diameter of the tube orifice of the electric heating tube is relatively small, and the magnesium oxide powder is likely to spill during manual filling, resulting in waste of the magnesium oxide powder. After the magnesium oxide powder is filled into the heating tube, the tube wall is knocked manually to generate vibration, so that the magnesium oxide powder is filled and compacted. However, manually knocking the tube wall is likely to damage the tube wall and affect its use safety factor.

[0005] Therefore, an MgO filling and compaction device for electric heating tubes is proposed to solve the above problems. Content of the Utility Model

[0006] In order to make up for the deficiencies of the prior art and solve the above problems, an MgO filling and compaction device for electric heating tubes is proposed.

[0007] The technical solution adopted by the utility model to solve its technical problems is: an MgO filling and compaction device for electric heating tubes described in the utility model includes a filling workbench, a limiting rod is installed on the inner wall of the filling workbench, a limiting spring is installed on the outer wall of the limiting rod, a clamping plate is installed on the outer wall of the limiting rod, and a heating metal tube is installed on the outer wall of the clamping plate.

[0008] Preferably, the clamping plate and the filling workbench form a telescopic structure through the limiting spring, and the clamping plate is in close fit with the heating metal tube.

[0009] Preferably, a support frame is installed on the top of the filling workbench, a feeding funnel is installed on the outer wall of the support frame, a positioning sleeve is installed on the bottom of the filling workbench, and a fixing sleeve is installed on the outer wall of the positioning sleeve.

[0010] Preferably, the support frame is welded to the packing table, and the positioning sleeve is threadedly connected to the fixing sleeve.

[0011] Preferably, a sliding sleeve is installed on the outer wall of the packing table, a fixing seat is installed on the inner wall of the packing table, a sliding rod is installed on the outer wall of the fixing seat, a return spring is installed on the outer wall of the sliding rod, a connecting shaft is installed on the outer wall of the fixing seat, a power motor is installed on the outer wall of the connecting shaft, and a transmission gear is installed on the outer wall of the power motor.

[0012] Preferably, the sliding sleeve is movably connected to the sliding rod, and the sliding sleeve is meshed with the transmission gear.

[0013] Preferably, the sliding sleeve and the fixing seat form a telescopic structure through the return spring, and the transmission gear is arranged in a semi-circular gear shape.

[0014] The beneficial effects of the present utility model:

[0015] The present utility model provides an electric heating tube MgO filling and compaction device. By setting a limiting rod, a limiting spring, a clamping plate, a positioning sleeve and a fixing sleeve, the heating metal tube that needs to be filled with magnesium oxide is inserted into the packing table. At this time, the clamping plate is forced to displace outward, pushing the limiting rod to slide in the packing table. When the heating metal tube is inserted into the specified position, the clamping plate is squeezed inward by the elastic force of the limiting spring, so as to squeeze and fix the outer wall of the heating metal tube. Then, by threadedly fixing the fixing sleeve and the positioning sleeve, the heating metal tube is prevented from falling downward. The combined use of the limiting rod, the limiting spring and the clamping plate can clamp and fix heating metal tubes with different diameters, improving the applicability of clamping and fixing the heating metal tube.

[0016] The present utility model provides an electric heating tube MgO filling and compaction device. By setting a support frame and a feeding hopper, since the diameter of the pipe orifice of the heating metal tube is small, when manually filling magnesium oxide powder, it is easy to spill, resulting in waste of magnesium oxide powder. The bottom of the feeding hopper is inserted into the pipe orifice of the heating metal tube, and the magnesium oxide powder is poured into the feeding hopper. The magnesium oxide powder falls into the heating metal tube by gravity, avoiding waste of magnesium oxide powder.

[0017] The utility model provides an MgO filling and compacting device for an electric heating tube. The device comprises a sliding sleeve, a fixing seat, a sliding rod, a reset spring, a connecting shaft, a power motor and a transmission gear. The power motor drives the transmission gear to engage with the sliding sleeve. At this time, a filling workbench is pulled to move along the sliding rod and the reset spring is squeezed. When the transmission gear rotates to a position without a gear ring, the transmission gear is separated from the sliding sleeve. At this time, the reset spring pushes the filling workbench to reset through its own elastic force. This reciprocating process is repeated. The filling workbench drives the heating metal tube and the feeding funnel to vibrate at the same frequency, so that the magnesium oxide powder discharges the internal air through vibration, thereby improving the density of the magnesium oxide powder and achieving the purpose of compaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 It is a three-dimensional diagram of the front view appearance of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the side appearance of the utility model;

[0021] Figure 3 It is a schematic structural diagram of the cross-section of some components of the utility model;

[0022] Figure 4 It is a structural schematic diagram showing the disassembly of some parts of the utility model;

[0023] Figure 5 It is a structural schematic diagram showing the disassembly of some components of the utility model;

[0024] Legend:

[0025] 1. Filling workbench; 2. Limit rod; 3. Limit spring; 4. Clamp; 5. Heating metal pipe; 6. Support frame; 7. Feeding funnel; 8. Positioning sleeve; 9. Fixed sleeve; 10. Sliding sleeve; 11. Fixed seat; 12. Sliding rod; 13. Reset spring; 14. Connecting shaft; 15. Power motor; 16. Transmission gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Specific embodiments are given below.

[0028] Please refer to Figure 1 、 Figure 3 and Figure 5 , the present utility model provides an electric heating tube MgO filling and compaction device, which includes a filling workbench 1. A limiting rod 2 is installed on the inner wall of the filling workbench 1. A limiting spring 3 is installed on the outer wall of the limiting rod 2. A clamping plate 4 is installed on the outer wall of the limiting rod 2. A heating metal tube 5 is installed on the outer wall of the clamping plate 4. The clamping plate 4 and the filling workbench 1 form a telescopic structure through the limiting spring 3, and the clamping plate 4 is in close contact with the heating metal tube 5.

[0029] During operation, the heating metal tube 5 that needs to be filled with magnesium oxide is inserted into the filling workbench 1. At this time, the clamping plate 4 is forced to displace outwards, pushing the limiting rod 2 to slide in the filling workbench 1. When the heating metal tube 5 is inserted into the specified position, the clamping plate 4 is squeezed inwards by the elastic force of the limiting spring 3, so as to squeeze and fix the outer wall of the heating metal tube 5. The combined use of the limiting rod 2, the limiting spring 3 and the clamping plate 4 can clamp and fix the heating metal tubes 5 with different diameter sizes, improving the applicability of clamping and fixing the heating metal tubes 5.

[0030] Furthermore, as shown in Figure 1 、 Figure 2 and Figure 4 , a support frame 6 is installed on the top of the filling workbench 1. A feeding funnel 7 is installed on the outer wall of the support frame 6. A positioning sleeve 8 is installed on the bottom of the filling workbench 1. A fixing sleeve 9 is installed on the outer wall of the positioning sleeve 8. The support frame 6 is welded to the filling workbench 1, and the positioning sleeve 8 is threadedly connected to the fixing sleeve 9.

[0031] During operation, after the heating metal tube 5 is inserted and connected to the bottom of the feeding funnel 7, by threadedly fixing the fixing sleeve 9 and the positioning sleeve 8, it is prevented that the heating metal tube 5 falls downward. Since the diameter of the tube orifice of the heating metal tube 5 is relatively small, when manually filling magnesium oxide powder, it is easy to spill, resulting in waste of magnesium oxide powder. The bottom of the feeding funnel 7 is inserted into the tube orifice of the heating metal tube 5, and the magnesium oxide powder is poured into the feeding funnel 7. The magnesium oxide powder falls into the heating metal tube 5 by gravity, avoiding waste of magnesium oxide powder.

[0032] Furthermore, as shown in Figure 2 and Figure 5As shown in the figure, a sliding sleeve 10 is installed on the outer wall of the packing workbench 1, a fixed seat 11 is installed on the inner wall of the packing workbench 1, a sliding rod 12 is installed on the outer wall of the fixed seat 11, a return spring 13 is installed on the outer wall of the sliding rod 12, a connecting shaft 14 is installed on the outer wall of the fixed seat 11, a power motor 15 is installed on the outer wall of the connecting shaft 14, a transmission gear 16 is installed on the outer wall of the power motor 15. The sliding sleeve 10 is movably connected with the sliding rod 12, the sliding sleeve 10 is meshed with the transmission gear 16, the sliding sleeve 10 and the fixed seat 11 form a telescopic structure through the return spring 13, and the transmission gear 16 is arranged in a semi-circular gear shape.

[0033] During operation, start the power motor 15 to drive the transmission gear 16 to engage with the sliding sleeve 10. At this time, the packing workbench 1 is pulled to displace along the sliding rod 12, and at the same time, the return spring 13 is compressed. When the transmission gear 16 rotates to the position without a gear ring, the transmission gear 16 disengages from the sliding sleeve 10. At this time, the return spring 13 pushes the packing workbench 1 to reset through its own elastic force. In this way, the packing workbench 1 drives the heating metal tube 5 and the feeding funnel 7 to vibrate at the same frequency, so that the magnesium oxide powder discharges the internal air through vibration, improving the density of the magnesium oxide powder and achieving the purpose of compaction.

[0034] Working principle:

[0035] First, insert the heating metal tube 5 that needs to be filled with magnesium oxide powder into the packing workbench 1, and insert the nozzle of the heating metal tube 5 into the bottom of the feeding funnel 7. At this time, the clamping plate 4 is forced to displace outwards, pushing the limiting rod 2 to slide in the packing workbench 1. When the heating metal tube 5 is inserted into the specified position, the clamping plate 4 is squeezed inwards by the elastic force of the limiting spring 3, so as to squeeze and fix the outer wall of the heating metal tube 5.

[0036] Secondly, thread-fix the fixed sleeve 9 and the positioning sleeve 8 to limit and fix the heating metal tube 5 to prevent the heating metal tube 5 from falling downwards.

[0037] Finally, start the power motor 15 to drive the transmission gear 16 to engage with the sliding sleeve 10. At this time, the packing workbench 1 is pulled to displace along the sliding rod 12, and at the same time, the return spring 13 is compressed. When the transmission gear 16 rotates to the position without a gear ring, the transmission gear 16 disengages from the sliding sleeve 10. At this time, the return spring 13 pushes the packing workbench 1 to reset through its own elastic force. In this way, the packing workbench 1 drives the heating metal tube 5 and the feeding funnel 7 to vibrate at the same frequency, so that the magnesium oxide powder discharges the internal air through vibration, improving the density of the magnesium oxide powder and achieving the purpose of compaction.

[0038] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed.

Claims

1. An electric heating tube MgO filling and compaction device, comprising a filler workbench (1), characterized in that: A limiting rod (2) is installed on the inner wall of the filler workbench (1), a limiting spring (3) is installed on the outer wall of the limiting rod (2), a clamping plate (4) is installed on the outer wall of the limiting rod (2), the clamping plate (4) forms a telescopic structure with the filler workbench (1) through the limiting spring (3), the clamping plate (4) is in close contact with the heating metal pipe (5), the heating metal pipe (5) is installed on the outer wall of the clamping plate (4), a support frame (6) is installed on the top of the filler workbench (1), a feeding funnel (7) is installed on the outer wall of the support frame (6), a positioning sleeve (8) is installed on the bottom of the filler workbench (1), and a fixing sleeve (9) is installed on the outer wall of the positioning sleeve (8).

2. The MgO filling and compaction device for an electric heating tube according to claim 1, wherein: The support frame (6) is welded to the filler workbench (1), and the positioning sleeve (8) is threadedly connected to the fixing sleeve (9).

3. An MgO filling and compaction device for an electric heating tube according to claim 1, characterized in that: A sliding sleeve (10) is installed on the outer wall of the filler workbench (1), a fixing seat (11) is installed on the inner wall of the filler workbench (1), a sliding rod (12) is installed on the outer wall of the fixing seat (11), a return spring (13) is installed on the outer wall of the sliding rod (12), a connecting shaft (14) is installed on the outer wall of the fixing seat (11), a power motor (15) is installed on the outer wall of the connecting shaft (14), and a transmission gear (16) is installed on the outer wall of the power motor (15).

4. An MgO filling and compaction device for an electric heating tube according to claim 3, characterized in that: The sliding sleeve (10) is movably connected to the sliding rod (12), and the sliding sleeve (10) is meshed with the transmission gear (16).

5. The MgO filling and compaction device for an electric heating tube according to claim 3, characterized in that: The sliding sleeve (10) forms a telescopic structure with the fixing seat (11) through the return spring (13), and the transmission gear (16) is arranged in a semi-circular gear shape.