Heating rod capable of mechanically controlling temperature
By using a mechanical temperature control design with a hot bimetallic strip and a pin assembly, the problem of high cost and easy failure of existing heating rods is solved, and automatic water temperature adjustment is achieved, improving safety and adaptability.
Patent Information
- Application Number
- CN202422667651.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-02
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-11-02
AI Technical Summary
Existing adjustable temperature heating rods rely on electronic control systems, which are costly and prone to failure in extreme environments, affecting their service life.
The system uses a bimetallic strip to respond to temperature changes and automatically cuts off the power supply through mechanical force. Combined with a pin and adjustment components, the disconnection temperature is adjusted to achieve mechanical temperature control.
It achieves automatic adjustment under different water temperature environments, avoids overheating, improves the safety and adaptability of the heating rod, and reduces costs.
Smart Images
Figure CN223600048U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of aquarium accessories, especially to a heating rod with mechanical temperature control. BACKGROUND
[0002] With the improvement of people's living standards, more and more people start to raise various ornamental fish and other aquatic organisms. In order to provide a suitable living environment and ensure the healthy growth of aquatic organisms, the water temperature control in the aquarium is crucial. Different types of aquatic organisms have different requirements for water temperature, so it is necessary to accurately control the water temperature in the aquarium.
[0003] The existing temperature-adjustable heating rod usually realizes temperature adjustment through an electronic control system. Although such a system has high precision, the cost is relatively high, and in some extreme environments, the electronic components are prone to failure, affecting the service life of the heating rod.
[0004] The utility model is made based on the above situation. UTILITY MODEL CONTENTS
[0005] The utility model overcomes the defects of the prior art and provides a heating rod that can automatically cut off the power supply through the response of the second metal sheet to temperature changes.
[0006] The utility model is implemented through the following technical solutions:
[0007] A heating rod with mechanical temperature control comprises an outer sleeve with at least one open end, a heating element, an insulating support, a neutral terminal, and a live terminal are arranged in the outer sleeve, the neutral terminal and the live terminal are connected with the heating element, a first contact and a thermal bimetallic sheet that is deformed when the temperature rises to separate from the first contact are arranged on the insulating support, the thermal bimetallic sheet is connected with the live terminal, the first contact is fixed on the insulating support, a first magnetic component is connected to the thermal bimetallic sheet, a second magnetic component that can magnetically attract the first magnetic component to make the first contact and the thermal bimetallic sheet conductive is arranged on the insulating support, when the temperature rises to a set value, the thermal bimetallic sheet is deformed due to heat, and the mechanical force generated by the thermal bimetallic sheet overcomes the magnetic force between the first magnetic component and the second magnetic component, so that the first contact and the thermal bimetallic sheet are separated to disconnect the circuit, a thimble that can press the thermal bimetallic sheet to change the required force for separating the first contact and the thermal bimetallic sheet is movably connected in the outer sleeve, a cover that covers the open end is arranged on the open end of the outer sleeve, and an adjusting assembly that can adjust the position of the thimble to change the required force for separating the first contact and the thermal bimetallic sheet is arranged between the cover and the thimble.
[0008] The heating rod with mechanical temperature control described above, the thermal bimetallic sheet is L-shaped, and when the thimble moves, it presses one end of the thermal bimetallic sheet, so that the other end of the thermal bimetallic sheet moves towards or away from the first contact.
[0009] A heating rod with mechanical temperature control as described above, the plunger is threadedly connected with the insulating support, the adjusting assembly comprises a driving structure capable of driving the plunger to rotate and move, the driving structure comprises a rotating head capable of driving the plunger to rotate and an adjusting knob capable of driving the rotating head to rotate, and the rotating head is provided with a plug-in hole for the plunger to be inserted into.
[0010] A heating rod with mechanical temperature control as described above, the adjusting knob and the rotating head are provided with a linkage sleeve capable of driving the rotating head to rotate when the adjusting knob rotates, the rotating head is provided with first transmission teeth, the linkage sleeve is provided with second transmission teeth meshing with the first transmission teeth, and the linkage sleeve is further provided with third transmission teeth, and the adjusting knob is provided with fourth transmission teeth meshing with the third transmission teeth.
[0011] A heating rod with mechanical temperature control as described above, the rotating head and the plunger are provided with a spring capable of pressing the rotating head against the linkage sleeve so that the first transmission teeth and the second transmission teeth are kept in meshing.
[0012] A heating rod with mechanical temperature control as described above, the adjusting knob and the cover are provided with an indicating mark capable of indicating the temperature at which the first contact and the hot bimetallic strip are disconnected.
[0013] A heating rod with mechanical temperature control as described above, the insulating support is arranged in an avoiding groove providing space for the hot bimetallic strip to deform due to heat.
[0014] A heating rod with mechanical temperature control as described above, the heating element comprises a plurality of heating wires arranged in the outer sleeve, the plurality of heating wires are provided with an insulator separating each heating wire, and the plurality of heating wires are connected in parallel or in series.
[0015] A heating rod with mechanical temperature control as described above, the outer sleeve is provided with a protective sleeve at an end away from the cover.
[0016] A heating rod with mechanical temperature control as described above, the outer sleeve is connected with a suction cup assembly capable of connecting it to the inner wall of a fish tank.
[0017] Compared with the prior art, the utility model has the following advantages:
[0018] The present application can realize the function of automatic power-off through the response of the thermal bimetallic strip to the temperature change, and the heating rod will automatically stop heating when the water temperature reaches the preset value, preventing overheating. When the temperature exceeds the set range, the magnetic force cannot overcome the mechanical force caused by thermal deformation, and the circuit is naturally disconnected, thereby avoiding the safety hazards caused by overheating. The top pin and the adjusting assembly can change the required force for separating the first contact from the thermal bimetallic strip according to actual needs, thereby adjusting the disconnection temperature, so that the water temperature environment required by different types of fish can be better adapted. BRIEF DESCRIPTION OF DRAWINGS
[0019] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.
[0020] Figure 1 is a structural schematic diagram of the present application;
[0021] Figure 2 is an exploded schematic diagram of the present application;
[0022] Figure 3 is a cross-sectional schematic diagram of the present application;
[0023] Figure 4 is a schematic diagram of the present application in which the top pin presses the thermal bimetallic strip;
[0024] Figure 5 is a cross-sectional view of the driving structure in the present application. DETAILED DESCRIPTION
[0025] The present application will be further described below with reference to the accompanying drawings:
[0026] As Figures 1 to 5The mechanical temperature control heating rod shown in the application comprises an outer sleeve 1 with at least one open end, a heating element 2, an insulating support 3, a zero line terminal 4 and a fire line terminal 5 arranged in the outer sleeve 1, the zero line terminal 4 and the fire line terminal 5 are connected with the heating element 2, the insulating support 3 is provided with a first contact 61 and a thermal bimetallic strip 62 which is deformed when the temperature rises to separate from the first contact 61, the thermal bimetallic strip 62 is connected with the fire line terminal 5, the first contact 61 is fixed on the insulating support 3, the thermal bimetallic strip 62 is connected with a first magnetic element 621, the insulating support 3 is provided with a second magnetic element 611 which can magnetically attract the first magnetic element 621 to make the first contact 61 connected with the thermal bimetallic strip 62, when the temperature rises to a set value, the thermal bimetallic strip 62 is deformed due to heat, the mechanical force generated by the deformation overcomes the magnetic force between the first magnetic element 621 and the second magnetic element 611, so that the first contact 61 is separated from the thermal bimetallic strip 62 to disconnect the circuit, the outer sleeve 1 is further movably connected with a thimble 7 which can press the thermal bimetallic strip 62 to change the required force for separating the first contact 61 from the thermal bimetallic strip 62, the open end of the outer sleeve 1 is further provided with a cover 11 which covers the opening, and the cover 11 and the thimble 7 are provided with an adjusting assembly 8 which can adjust the position of the thimble 7 to change the required force for separating the first contact 61 from the thermal bimetallic strip 62. The insulating support 3 is provided with an avoiding groove 31 which provides space for the thermal bimetallic strip 62 to be deformed due to heat. One end of the zero line terminal 4 is connected with the heating element 2, the other end is connected with the zero line of the power supply, and the first contact 61 is connected with the fire line of the power supply.
[0027] The application can automatically cut off the power supply through the response of the thermal bimetallic strip 62 to the change of temperature, when the water temperature reaches the preset value, the heating rod will automatically stop heating to prevent overheating. When the temperature exceeds the set range, the magnetic force cannot overcome the mechanical force caused by thermal deformation, so the circuit is naturally disconnected, thereby avoiding the safety hazard caused by overheating. The required force for separating the first contact 61 from the thermal bimetallic strip 62 can be changed according to actual needs through the thimble 7 and the adjusting assembly 8 to adjust the disconnection temperature, so that the water temperature environment required by different types of fish can be better adapted.
[0028] Specifically, the thermal bimetallic strip 62 is L-shaped, and the thimble 7 moves to press one end of the thermal bimetallic strip 62 to make the other end of the thermal bimetallic strip 62 approach or move away from the first contact 61. When one end of the thermal bimetallic strip 62 approaches the first contact 61, the closer the distance between the thermal bimetallic strip 62 and the first contact 61, the closer the distance between the thermal bimetallic strip 62 and the first contact 61 in the natural state when the first magnetic element 621 does not generate magnetic force, the smaller the distance between the thermal bimetallic strip 62 and the first contact 61, the greater the magnetic force between the first magnetic element 621 and the second magnetic element 611, and the higher the temperature required to make the thermal bimetallic strip 62 deform and separate from the first contact 61, and vice versa.
[0029] Further, the top pin 7 is threadedly connected with the insulating support 3, the adjusting assembly 8 comprises a driving structure capable of driving the top pin 7 to rotate so as to move the top pin 7, the driving structure comprises a rotating head 81 capable of driving the top pin 7 to rotate and an adjusting knob 82 capable of driving the rotating head 81 to rotate, and the rotating head 81 is provided with an insertion hole 811 for the top pin 7 to be inserted. In an embodiment, the insertion hole 811 is hexagonal in cross section, and the end of the top pin 7 is hexagonal in cross section and matched with the insertion hole 811. The adjusting knob 82 is rotationally connected with the cover 11.
[0030] Further, a linkage sleeve 83 is arranged between the adjusting knob 82 and the rotating head 81, the linkage sleeve 83 is capable of driving the rotating head 81 to rotate when the adjusting knob 82 rotates, the rotating head 81 is provided with first transmission teeth 812, the linkage sleeve 83 is provided with second transmission teeth 831 engaged with the first transmission teeth 812, the linkage sleeve 83 is further provided with third transmission teeth 832, and the adjusting knob 82 is provided with fourth transmission teeth 821 engaged with the third transmission teeth 832. The rotating head 81 and the top pin 7 are provided with a spring 84 capable of pressing the rotating head 81 towards the linkage sleeve 83 so as to keep the first transmission teeth 812 and the second transmission teeth 831 engaged.
[0031] In an embodiment, the first magnetic member 621 is a magnet, and the second magnetic member 611 is a ferromagnetic metal.
[0032] In an embodiment, the adjusting knob 82 and the cover 11 are provided with an indicating mark 85 capable of indicating the temperature at which the first contact 61 is disconnected from the thermal bimetallic strip 62. The indicating mark 85 comprises an indicating arrow arranged on the cover 11 and a temperature value arranged on the adjusting knob 82.
[0033] In an embodiment, the heating element 2 comprises a plurality of heating wires arranged in the outer sleeve 1, and the plurality of heating wires are provided with insulators 21 for separating the heating wires, and the plurality of heating wires are connected in parallel or in series. The insulators 21 can be made of mica or insulating plastic.
[0034] In an embodiment, the outer sleeve 1 is provided with a protective sleeve 12 at the end away from the cover 11. The end of the outer sleeve 1 is most likely to be bumped in use, and the protective sleeve 12 can protect the end of the outer sleeve 1.
[0035] In an embodiment, the outer sleeve 1 is connected with a suction cup assembly 9 capable of connecting the outer sleeve 1 to the inner wall of the fish tank.
Claims
1. A heating rod with mechanically controllable temperature, characterized in that: The device includes an outer tube (1) with at least one open end. The outer tube (1) contains a heating element (2), an insulating support (3), a neutral wire terminal (4), and a live wire terminal (5). Both the neutral wire terminal (4) and the live wire terminal (5) are connected to the heating element (2). The insulating support (3) has a first contact (61) and a bimetallic strip (62) that deforms upon temperature rise and separates from the first contact (61). The bimetallic strip (62) is connected to the live wire terminal (5). The first contact (61) is fixed to the insulating support (3). A first magnetic element (621) is connected to the bimetallic strip (62). The insulating support (3) has a first magnetic element (621) that can magnetically attract the first magnetic element (621), thereby connecting the first contact (61) to the bimetallic strip (62). When the temperature rises to a set value, the bimetallic strip (62) deforms due to heat, and the mechanical force generated overcomes the magnetic force between the first magnetic component (621) and the second magnetic component (611), thereby separating the first contact (61) from the bimetallic strip (62) and disconnecting the circuit. Inside the outer tube (1), there is also a pin (7) that can press the bimetallic strip (62) to change the force required to separate the first contact (61) from the bimetallic strip (62). A cover (11) covering the opening is also provided on one open end of the outer tube (1). Between the cover (11) and the pin (7), there is an adjustment component (8) that can adjust the position of the pin (7) to change the force required to separate the first contact (61) from the bimetallic strip (62).
2. The mechanically temperature-controlled heating rod according to claim 1, characterized in that: The hot bimetallic strip (62) is L-shaped. When the ejector pin (7) moves, it presses one end of the hot bimetallic strip (62) so that the other end of the hot bimetallic strip (62) moves closer to or away from the first contact point (61).
3. A mechanically temperature-controlled heating rod according to claim 2, characterized in that: The ejector pin (7) is threadedly connected to the insulating bracket (3). The adjustment assembly (8) includes a drive structure that can drive the ejector pin (7) to rotate, thereby moving the ejector pin (7). The drive structure includes a rotating head (81) that can drive the ejector pin (7) to rotate and an adjustment knob (82) that drives the rotating head (81) to rotate. The rotating head (81) is provided with a plug hole (811) for the ejector pin (7) to be inserted.
4. A mechanically temperature-controlled heating rod according to claim 3, characterized in that: A linkage sleeve (83) is provided between the adjustment knob (82) and the rotating head (81) to drive the rotating head (81) to rotate when the adjustment knob (82) rotates. The rotating head (81) is provided with a first transmission tooth (812), the linkage sleeve (83) is provided with a second transmission tooth (831) that meshes with the first transmission tooth (812), the linkage sleeve (83) is also provided with a third transmission tooth (832), and the adjustment knob (82) is provided with a fourth transmission tooth (821) that meshes with the third transmission tooth (832).
5. A mechanically temperature-controlled heating rod according to claim 4, characterized in that: A spring (84) is provided between the rotating head (81) and the ejector pin (7) to press the rotating head (81) against the linkage sleeve (83) so that the first transmission tooth (812) and the second transmission tooth (831) remain engaged.
6. A mechanically temperature-controlled heating rod according to claim 5, characterized in that: An indicator (85) is provided between the adjustment knob (82) and the cover (11) to indicate the temperature at which the first contact (61) disconnects from the hot bimetallic strip (62).
7. A mechanically temperature-controlled heating rod according to claim 1, characterized in that: The insulating support (3) is provided in a relief groove (31) that provides space for the thermal bimetallic sheet (62) to deform due to heat.
8. A mechanically temperature-controlled heating rod according to any one of claims 1-7, characterized in that: The heating element (2) includes multiple heating wires disposed inside the outer sleeve (1), and an insulator (21) is provided between the multiple heating wires to separate each heating wire. The multiple heating wires are connected in parallel or in series.
9. A mechanically temperature-controlled heating rod according to any one of claims 1-7, characterized in that: The outer sleeve (1) is provided with a protective sleeve (12) at the end away from the cover (11).
10. A mechanically temperature-controlled heating rod according to any one of claims 1-7, characterized in that: The outer tube (1) is connected to a suction cup assembly (9) that can attach it to the inner wall of the aquarium.