Adjustable copper funnel heat preservation sleeve

Abstract

The utility model discloses an adjustable copper funnel heat preservation sleeve relates to laboratory heating equipment technical field, including funnel body, the funnel body outside is wrapped with heat preservation cover, the heat preservation cover is from inside to position and is compounded and is provided with antiskid layer, middle heating layer and heat preservation layer, the heat preservation layer outside is fixedly connected with locking mechanism, the locking mechanism is used for fixing heat preservation cover locking in funnel body outside, the middle heating layer includes flexible heating element, main control temperature measuring element for detecting copper funnel temperature and safety temperature measuring element for overtemperature protection, the flexible heating element is etching foil electric heating film or silica gel heating sheet, through being provided with middle heating layer in heat preservation cover, middle heating layer adopts PID temperature controller and solid state relay, combines direct contact type temperature measurement, can realize high accuracy temperature control, satisfies high standard experiment demand, and provides double security insurance through independent overtemperature protection circuit.

Description

Technical Field

[0001] This utility model relates to the field of laboratory heating equipment technology, specifically an adjustable copper funnel insulation sleeve. Background Technology

[0002] In chemistry and biology laboratories, copper funnels often need to be heated to ensure a smooth filtration process. Traditionally, this is done using an open flame, such as an alcohol lamp, to heat the funnel from the bottom. This method presents significant safety hazards, easily igniting surrounding flammable materials and causing a fire. Furthermore, open flame heating offers extremely poor temperature control accuracy, failing to meet the requirements of temperature-sensitive experiments, resulting in low thermal efficiency and significant energy waste. In addition, continuous monitoring is required during operation, making automated temperature control impossible. Therefore, an adjustable copper funnel insulation jacket is provided to address the problems mentioned in the background. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable copper funnel insulation sleeve to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable copper funnel insulation sleeve includes a funnel body, and an insulation sleeve is wrapped around the outside of the funnel body. The insulation sleeve is composed of an anti-slip layer, an intermediate heating layer and an insulation layer from the inside to the outside. A locking mechanism is fixedly connected to the outside of the insulation layer. The locking mechanism is used to fix the insulation sleeve to the outside of the funnel body.

[0006] As a further embodiment of this utility model: the anti-slip layer is a high thermal conductivity flexible silicone layer, and a permanent magnet unit is provided on the high thermal conductivity flexible silicone layer. The permanent magnet unit is a samarium cobalt magnet or an aluminum nickel cobalt magnet and is encapsulated in a magnetic shielding sleeve made of a high thermal conductivity non-magnetic material.

[0007] As a further embodiment of this utility model: the intermediate heating layer includes a flexible heating element, a main temperature control element for detecting the temperature of the copper funnel, and a safety temperature measurement element for over-temperature protection; the flexible heating element is an etched foil heating film or a silicone heating sheet.

[0008] As a further embodiment of this utility model: the locking mechanism includes a first connecting block and a second connecting block. One end of the first connecting block is fixedly connected to an arc-shaped plug. The second connecting block has a plug groove inside. The upper and lower sides of the inner wall of the plug groove are fixedly connected to elastic blocks. The arc-shaped plug is inserted into the plug groove and engages with the elastic blocks.

[0009] As a further improvement of this utility model: the inside of the plug groove is further provided with symmetrical mounting grooves, the inside of the mounting grooves is provided with heat-expanding wax, the heat-expanding wax is provided with limiting blocks, the arc-shaped plug is provided with symmetrical limiting grooves, and the limiting blocks are engaged with the limiting grooves.

[0010] As a further improvement of this utility model: a temperature controller is also installed on the outside of the insulation layer. The temperature controller includes a PID temperature controller, a solid-state relay, and a human-machine interface. The PID temperature controller is connected to the main temperature control element and the safety temperature control element respectively, and its control output terminal is connected to the flexible heating element through the solid-state relay.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting an intermediate heating layer in the insulation jacket, which uses a PID temperature controller and solid-state relay, combined with direct contact temperature measurement, high-precision temperature control can be achieved to meet high-standard experimental requirements, and a double safety guarantee is provided through an independent over-temperature protection circuit.

[0013] 2. By setting a locking mechanism, the mechanical plug-in mechanism in the locking mechanism provides the main locking force, and the thermal expansion self-tightening module automatically strengthens the locking at high temperature, forming a progressively stronger fixing system, which completely prevents the insulation sleeve from loosening or falling off during the experiment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the insulation sleeve structure in this utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of the locking mechanism in this utility model;

[0017] Figure 4 This is a schematic diagram of the anti-slip layer structure in this utility model;

[0018] The correspondence between the labels and component names in the attached figures is as follows:

[0019] 1. Funnel body; 2. Insulation sleeve; 201. Anti-slip layer; 202. Intermediate heating layer; 203. Insulation layer; 204. Thermostat; 3. Locking mechanism; 301. First connecting block; 302. Second connecting block; 303. Insertion groove; 304. Arc-shaped insertion connector; 305. Mounting groove; 306. Heat-expanding wax; 307. Limiting block; 308. Limiting groove; 309. Elastic locking block; 4. Permanent magnet unit. Detailed Implementation

[0020] Please see Figures 1-4 An adjustable copper funnel insulation sleeve includes a funnel body 1, with an insulation sleeve 2 covering the outside of the funnel body 1. The insulation sleeve 2 is composed of an anti-slip layer 201, an intermediate heating layer 202, and an insulation layer 203, arranged from the inside to the outside. A locking mechanism 3 is fixedly connected to the outside of the insulation layer 203 to secure the insulation sleeve 2 to the outside of the funnel body 1. In this embodiment, the insulation sleeve 2 covers the outside of the funnel body 1, with the anti-slip layer 201 inside in contact with the funnel body 1, and the intermediate heating layer 202 can... The insulation layer 203 provides heat while reducing heat loss. The locking mechanism 3, through a specific structural design, firmly fixes the insulation sleeve 2 to the outside of the funnel body 1, ensuring a tight fit between the insulation sleeve 2 and the funnel body 1. This design eliminates the open flame of the alcohol lamp, fundamentally avoiding the risk of fire. Furthermore, the design of the side-wrapped heating and insulation layer 203 allows heat to be directly transferred to the funnel wall with minimal loss, resulting in high thermal efficiency. Compared to bottom point heating, the surrounding heating makes the funnel more evenly heated, leading to better experimental results.

[0021] like Figure 4 As shown, the anti-slip layer 201 is a highly thermally conductive flexible silicone layer. A permanent magnet unit 4 is provided on the highly thermally conductive flexible silicone layer. The permanent magnet unit 4 is a samarium cobalt magnet or an alnico magnet and is encapsulated in a magnetic shielding sleeve made of a highly thermally conductive non-magnetic material. The highly thermally conductive flexible silicone layer of the anti-slip layer 201 has good thermal conductivity and flexibility, which can tightly fit the funnel body 1 and increase friction to prevent the insulation sleeve 2 from sliding. The permanent magnet unit 4 generates an adsorption force with the funnel body 1 (a magnetic ring is also provided at the corresponding position on the surface of the funnel body 1) through its own magnetism, which further enhances the bonding stability between the insulation sleeve 2 and the funnel body 1. The permanent magnet unit 4 is encapsulated in a magnetic shielding sleeve, which can prevent its magnetic field from interfering with other components (such as heating elements, temperature measuring elements, etc.). This setting ensures good contact and fixation between the insulation sleeve 2 and the funnel body 1, improves heat transfer efficiency, and prevents the insulation sleeve 2 from affecting the insulation effect or causing other problems due to sliding during use.

[0022] Furthermore, the intermediate heating layer 202 includes a flexible heating element, a main temperature control element for detecting the temperature of the copper funnel, and a safety temperature measurement element for over-temperature protection; the flexible heating element is an etched foil heating film or a silicone heating sheet, and a temperature controller 204 is also installed on the outside of the insulation layer 203. The temperature controller 204 includes a PID temperature controller, a solid-state relay, and a human-machine interface; the PID temperature controller is connected to the main temperature control element and the safety temperature measurement element respectively, and its control output terminal is connected to the flexible heating element through the solid-state relay; in this embodiment, The flexible heating element generates heat when energized, providing temperature signals to the main temperature control element and the safety temperature control element. The main temperature control element monitors the temperature of the copper funnel in real time and feeds back the temperature signal to the temperature controller 204. The temperature controller 204 controls the power of the flexible heating element through a solid-state relay based on the set temperature value, achieving precise adjustment and control of the copper funnel temperature. When the temperature exceeds the safety set value, the safety temperature control element is triggered, cutting off the heating circuit and providing over-temperature protection. The main temperature control element transmits the detected copper funnel temperature signal to the PID temperature controller. The PID temperature controller compares and calculates the preset temperature value and the actual detected temperature value, and controls the on / off state and power of the flexible heating element through a solid-state relay, thereby achieving precise adjustment of the copper funnel temperature. The human-machine interface is used to set temperature parameters and display current temperature information, facilitating user operation and monitoring.

[0023] like Figure 2 and Figure 3As shown, the locking mechanism 3 includes a first connecting block 301 and a second connecting block 302. One end of the first connecting block 301 is fixedly connected to an arc-shaped connector 304. The second connecting block 302 has an insertion groove 303 inside. Elastic locking blocks 309 are fixedly connected to the upper and lower sides of the inner wall of the insertion groove 303. The arc-shaped connector 304 is inserted into the insertion groove 303 and engages with the elastic locking blocks 309. The insertion groove 303 also has symmetrical mounting grooves 305 inside. Heat-expanding wax 306 is installed inside the mounting grooves 305. Limiting blocks 307 are installed on the heat-expanding wax 306. The arc-shaped connector 304 has symmetrical limiting grooves 308, and the limiting blocks 307 engage with the limiting grooves 308. In this embodiment, when it is necessary to fix the insulation sleeve 2, the arc-shaped connector 304 on the first connecting block 301 is inserted into the insertion groove 303 of the second connecting block 302. 4. Upon contact with the elastic locking block 309, deformation occurs. As the arc-shaped connector 304 continues to move, the elastic locking block 309 and the arc-shaped connector 304 will initially engage, achieving initial fixation. This engagement structure makes the installation and disassembly of the insulation sleeve 2 relatively convenient. Under normal temperature, the heat-expanding wax 306 is in a solid state, and the limiting block 307 and the limiting groove 308 are not engaged. When the temperature rises, the heat-expanding wax 306 expands due to heat, pushing the limiting block 307 to move towards the limiting groove 308, and finally engaging into the limiting groove 308. This further strengthens the connection strength between the arc-shaped connector 304 and the connector groove 303, preventing the insulation sleeve 2 from loosening due to thermal expansion and contraction in high-temperature environments. This setting further enhances the fixing effect of the locking mechanism 3 in high-temperature environments, ensuring that the insulation sleeve 2 can be firmly fixed on the funnel body 1 under different temperature conditions, thus improving the stability and reliability of the device.

[0024] Working principle: In use, the insulation sleeve 2 is first magnetically attached to the funnel body 1. After closing the outer shell, the arc-shaped plug 304 is inserted into the plug slot 303 until the elastic block 309 locks it in place, completing the initial fixation. After setting the required temperature, the device is started. The temperature controller 204 adjusts the heating power by controlling the solid-state relay through PID calculation based on the feedback from the main PT100 sensor. As the temperature rises, the heat-expanding wax 306 expands, pushing the limit block 307 to lock the limit slot 308, achieving thermal self-tightening. If abnormal overheating occurs, the safety thermocouple will directly cut off the circuit to ensure safety.

[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable copper funnel insulation sleeve, comprising a funnel body (1), characterized in that, The funnel body (1) is wrapped with a heat-insulating sleeve (2). The heat-insulating sleeve (2) is composed of an anti-slip layer (201), an intermediate heating layer (202) and a heat-insulating layer (203) from the inside to the outside. A locking mechanism (3) is fixedly connected to the outside of the heat-insulating layer (203). The locking mechanism (3) is used to fix the heat-insulating sleeve (2) and lock it to the outside of the funnel body (1).

2. The adjustable copper funnel insulation sleeve according to claim 1, characterized in that, The anti-slip layer (201) is a high thermal conductivity flexible silicone layer, and a permanent magnet unit (4) is provided on the high thermal conductivity flexible silicone layer. The permanent magnet unit (4) is a samarium cobalt magnet or an aluminum nickel cobalt magnet and is encapsulated in a magnetic shielding sleeve made of a high thermal conductivity non-magnetic material.

3. The adjustable copper funnel insulation sleeve according to claim 1, characterized in that, The intermediate heating layer (202) includes a flexible heating element, a main temperature control element for detecting the temperature of the copper funnel, and a safety temperature measurement element for over-temperature protection; the flexible heating element is an etched foil heating film or a silicone heating sheet.

4. The adjustable copper funnel insulation sleeve according to claim 1, characterized in that, The locking mechanism (3) includes a first connecting block (301) and a second connecting block (302). One end of the first connecting block (301) is fixedly connected to an arc-shaped plug (304). The second connecting block (302) has a plug groove (303) inside. The upper and lower sides of the inner wall of the plug groove (303) are fixedly connected to elastic blocks (309). The arc-shaped plug (304) is inserted into the plug groove (303) and engages with the elastic blocks (309).

5. An adjustable copper funnel insulation sleeve according to claim 4, characterized in that, The insertion slot (303) is also provided with a symmetrical mounting slot (305), and a heat-expanding wax (306) is installed inside the mounting slot (305). A limiting block (307) is installed on the heat-expanding wax (306), and a symmetrical limiting slot (308) is opened on the arc-shaped insertion connector (304). The limiting block (307) engages with the limiting slot (308).

6. An adjustable copper funnel insulation sleeve according to claim 3, characterized in that, A temperature controller (204) is also installed on the outside of the insulation layer (203). The temperature controller (204) includes a PID temperature controller, a solid-state relay and a human-machine interface. The PID temperature controller is connected to the main temperature control element and the safety temperature control element respectively. Its control output terminal is connected to the flexible heating element through the solid-state relay.

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