Fast card type external ceramic insulation tube bundle device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HARBIN PHARMA GRP CO LTD GENERAL PHARMA FACTORY
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-29
Smart Images

Figure CN224305938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dry heat sterilizer technology, and more specifically, to a quick-release type external ceramic insulating tube bundle device. Background Technology
[0002] Dry heat sterilizers are widely used in the pharmaceutical, chemical, and food industries for sterilizing and depyrifying vials, ampoules, metal and glassware, and for dry heat sterilizing solid materials. For example, the patent "Dry Heat Sterilizer" with publication number CN219595294U and application number CN202320361395.2 mainly innovates by setting up multiple sterilization zones and adjustment mechanisms to reduce heat loss and sterilization time for incompletely sterilized items, but it does not address the optimization of the insulation device between the power supply and the built-in U-shaped heating tube.
[0003] Currently, the insulating columns used in dry heat sterilizers, connecting the power supply and the built-in U-shaped heating tubes, are mostly single ceramic columns with ceramic ends and internal filling, and an external 304 stainless steel casing. In actual use, the prolonged drying and recirculation of air within the sterilizer's interior can cause corrosion and reduced hardness of the ceramic bolts and nuts at both ends of the insulating device. During routine inspections and maintenance, the nuts and bolts frequently come loose or break. Once damaged, due to the structural characteristics of the individual ceramic columns, they cannot be easily replaced; cutting equipment is often required. If a new individual ceramic column is reinstalled, welding cannot achieve a perfect seal between the inner and outer layers and the interlayer. This exposes the contents of the dry heat sterilizer to the risk of aseptic exposure and contamination during sterilization, severely impacting the normal operation of the equipment and product quality. Utility Model Content
[0004] The purpose of this utility model is to provide a quick-release external ceramic insulating tube bundle device to solve the problem mentioned in the background art that, in actual use, the long-term drying and recirculation of the inner cavity of the dry heat sterilizer will cause the ceramic bolts and nuts at both ends of the insulating device to corrode and reduce their hardness.
[0005] To achieve the above objectives, this utility model provides a quick-release type external ceramic insulating tube bundle device, including a round tube connected to the top of a cabinet. The lower end of the round tube communicates with the interior of the cabinet, and a tee tube is detachably connected to the upper end of the round tube. An insulating tube bundle is installed inside the tee tube, and the insulating tube bundle forms a perforated channel inside the tee tube. A conductive long bolt is placed inside the perforated channel, and the two ends of the conductive long bolt are respectively connected to a power supply wire and a U-shaped heating tube connection wire.
[0006] This design features a circular tube connecting to the top of the cabinet, with its upper and lower ends providing communication with the outside and the interior of the cabinet, respectively. A detachable T-junction connects to the upper end, within which an insulating tube bundle forms a perforated channel. A conductive bolt is placed within this channel, and the power supply wire and U-shaped heating element wire are connected to the two ends respectively, ensuring electrical conductivity. Simultaneously, the insulating tube bundle provides insulation. This structure relocates the electrical connections, originally inside the cabinet, to the outside, changing the traditional wiring method.
[0007] Preferably, both the cabinet and the insulation cover have round holes on their surfaces, the lower end of the round tube passes through the round hole, and the round tube is welded and fixed to the round hole.
[0008] This design involves creating circular holes on the surfaces of the cabinet and insulation cover. The lower end of a circular tube passes through these holes and is welded in place. Welding creates a stable connection between the circular tube and the cabinet and insulation cover, ensuring the tube is fixed in position and the weld is sealed, thus reliably sealing the passage connecting the tube to the inside of the cabinet.
[0009] Preferably, the top end of the round tube extends 80mm beyond the top surface of the cabinet.
[0010] This setting extends the top of the round tube 80mm beyond the top surface of the cabinet, providing sufficient space for subsequent operations such as installing connectors and connecting tee pipes at the top of the round tube. This ensures that the tee pipe has a suitable height position after installation, making the overall layout of the device reasonable, and also facilitating related operations and maintenance by operators.
[0011] Preferably, a connector is installed at the upper end of the round pipe, and the connector is fixed to the lower end of the tee pipe by a clamp.
[0012] This feature involves installing a connector at the upper end of the round pipe, which is then connected and secured to the lower end of the tee pipe using a clamp. The clamp's tightening action ensures a tight connection between the connector and the tee pipe, creating a detachable connection. When maintenance or replacement of components is required, the tee pipe can be separated from the round pipe by loosening the clamp.
[0013] Preferably, a sealing ring is installed on the outer side of the connector.
[0014] This feature involves installing a sealing ring on the outside of the connector. The elastic deformation of the sealing ring fills the gap between the connector and the tee pipe connection, forming a sealing structure to prevent external moisture, dust, and other impurities from entering the device, while also preventing the leakage of internal heat and gas.
[0015] Preferably, the upper two ends of the tee are fitted with perforated blind plates, and the power supply wiring passes through the perforated blind plates.
[0016] This feature involves installing perforated blind flanges on both sides of the upper part of the tee pipe. The power supply wiring passes through the perforated blind flanges. The perforated blind flanges seal the inside of the tee pipe to prevent external debris from entering, while also providing a passage for the power supply wiring and providing a certain degree of fixation and protection for the line.
[0017] Preferably, the two ends of the conductive bolt are connected by connecting nuts, and the connection points are sealed with high-temperature insulating sealant.
[0018] This design uses connecting nuts at both ends of the conductive bolt to secure the power supply wires and the U-shaped heating tube connection wires to the conductive bolt. The connection points are sealed with high-temperature insulating sealant, which provides insulation and sealing to prevent leakage and the entry of external impurities.
[0019] Preferably, both the conductive bolt and the insulating tube bundle are L-shaped structures, with their shapes adapted to the internal channels of the tee tube. The upper ends are located at the upper two ends of the tee tube, and the lower ends are located at the lower end of the tee tube.
[0020] The conductive bolts and insulating tubing in this design are both L-shaped, which fits the internal channels of the tee pipe. This shape design allows the conductive bolts and insulating tubing to fit tightly inside the tee pipe, making reasonable use of the space structure of the tee pipe to achieve effective connection and insulation isolation of the power supply wiring and the U-shaped heating tube connection wire inside the tee pipe.
[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0022] In this quick-clamp external ceramic insulating tube bundle device, the power supply line and heating tube line are moved to the outside of the equipment. Through the combination design of round tube, tee tube, insulating tube bundle and conductive long bolt, when the wiring is damaged, the clamps can be removed from the outside of the equipment to check and replace each high-temperature insulating tube bundle and wiring connection point. There is no need to cut the equipment like in the traditional way, which greatly improves the maintenance efficiency and reduces the maintenance difficulty and cost.
[0023] The insulating tube bundle forms a perforated channel inside the tee pipe. Together with the L-shaped conductive bolt and the insulating tube bundle, the power supply wiring and the U-shaped heating tube connection wire are mutually insulated and do not interfere with each other within the channel. At the same time, the wiring ends of the conductive bolt are sealed with high-temperature insulating sealant, and a sealing ring is installed on the outside of the joint. The upper two ends of the tee pipe are equipped with perforated blind plates. Multiple protection measures effectively eliminate the risk of leakage, and the safety is significantly improved compared with traditional insulating columns.
[0024] Since damaged parts can be replaced without cutting equipment, it avoids damage to the internal structure of the equipment caused by cutting, and there is no need to worry about the risk of sterile exposure and contamination of dry heat contents due to imperfect sealing during re-welding. This ensures the integrity of the equipment and the quality and safety of the product, and ensures that the dry heat sterilizer can operate stably and reliably. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the circular tube structure in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the tee pipe in this utility model;
[0028] The meanings of the labels in the diagram are as follows:
[0029] 1. Round pipe; 11. Connector; 2. T-pipe; 21. Insulating tube bundle; 22. Conductive long bolt; 221. Connecting nut; 23. Blind flange with hole; 24. Insulating sealant; 3. Clamp; 4. Cabinet; 41. Thermal insulation cover. Detailed Implementation
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] This utility model provides a quick-release type external ceramic insulating tube bundle device, such as... Figure 1 , Figure 3 As shown, it includes a round tube 1, which is connected to the top of the cabinet 4. The lower end of the round tube 1 is connected to the interior of the cabinet 4. The upper end of the round tube 1 is detachably connected to a three-way tube 2. An insulating tube bundle 21 is provided inside the three-way tube 2. The insulating tube bundle 21 forms a hole-like channel inside the three-way tube 2. A conductive long bolt 22 is placed in the hole-like channel. The two ends of the conductive long bolt 22 are respectively connected to the power supply wiring and the U-shaped heating tube connection wire.
[0032] A circular tube 1 connects to the top of cabinet 4, with its upper and lower ends respectively connecting to the outside and the interior of cabinet 4. A detachable three-way tube 2 connects to the upper end. An insulating tube bundle 21 forms a perforated channel within the three-way tube 2, through which a conductive bolt 22 is placed. The power supply wiring and the U-shaped heating tube connection wire are connected at both ends respectively, achieving circuit continuity. Simultaneously, the insulating tube bundle 21 provides insulation. This structure transfers the circuit connections, originally inside the cabinet, to the outside, changing the traditional wiring method. It achieves electrical connection between the power supply and the U-shaped heating tube, and the external structure eliminates the need for inspection and maintenance inside the cabinet, greatly improving ease of maintenance. The insulating tube bundle 21 effectively prevents short circuits, ensuring electrical safety.
[0033] In this embodiment, as Figure 1 As shown, both the cabinet body 4 and the insulation cover 41 have round holes on their surfaces. The lower end of the round tube 1 passes through the round hole, and the round tube 1 is welded and fixed to the round hole.
[0034] Circular holes are made on the surfaces of the cabinet body 4 and the insulation cover 41. The lower end of the circular tube 1 passes through the circular hole and is welded and fixed. Welding is used to form a stable connection structure between the circular tube 1 and the cabinet body 4 and the insulation cover 41, ensuring that the position of the circular tube 1 is fixed and the weld is sealed, so that the channel connecting the circular tube 1 and the inside of the cabinet body 4 is reliably sealed. This ensures that the connection between the circular tube 1 and the cabinet body 4 and the insulation cover 41 is firm, preventing the circular tube 1 from loosening due to vibration or other factors during equipment operation, ensuring the stability of the connection between the circular tube 1 and the inside of the cabinet body 4, preventing heat loss and external impurities from entering the inside of the cabinet body 4, and maintaining the normal working environment of the dry heat sterilizer.
[0035] Specifically, such as Figure 1 As shown, the top end of the round tube 1 extends 80mm beyond the top surface of the cabinet 4.
[0036] The top of the round tube 1 extends 80mm beyond the top surface of the cabinet 4, providing sufficient space for subsequent operations such as installing the connector 11 and connecting the tee tube 2 at the top of the round tube 1. This ensures that the tee tube 2 has a suitable height after installation, making the overall layout of the device reasonable and facilitating related operations and maintenance by operators. Providing ample installation space facilitates the installation and removal of the connector 11 and the tee tube 2, ensuring that the tee tube 2 is at a suitable height after installation, facilitating wiring connections and inspections, improving operational convenience, and avoiding installation difficulties and operational inconveniences caused by insufficient space.
[0037] Furthermore, such as Figure 1 , Figure 2 As shown, a connector 11 is installed at the upper end of the round pipe 1, and the connector 11 is connected and fixed to the lower end of the tee pipe 2 by a clamp 3.
[0038] A connector 11 is installed at the upper end of the round pipe 1, and the connector 11 is connected and fixed to the lower end of the tee pipe 2 by a clamp 3. The clamp 3 tightens the connector 11 and the tee pipe 2, forming a detachable connection. When maintenance or replacement of parts is required, the tee pipe 2 can be separated from the round pipe 1 by loosening the clamp 3. This allows for quick connection and disassembly of the tee pipe 2 and the round pipe 1, facilitating the inspection, maintenance, and replacement of parts, improving equipment maintenance efficiency, and reducing maintenance costs. Compared with non-detachable connection methods such as welding, this connection method is more flexible and facilitates equipment upgrades and modifications.
[0039] Furthermore, such as Figure 2 As shown, a sealing ring is installed on the outer side of connector 11.
[0040] A sealing ring is installed on the outside of connector 11. The elastic deformation of the sealing ring fills the gap between connector 11 and the connection point of tee pipe 2, forming a sealing structure to prevent external moisture, dust, and other impurities from entering the device, while also preventing the leakage of internal heat and gas. This enhances the sealing performance of the connection, preventing external impurities from affecting the electrical performance and normal operation of the device, avoiding energy waste and changes in the working environment caused by internal heat and gas leakage, and improving the reliability and service life of the device.
[0041] Furthermore, such as Figure 1 , Figure 3 As shown, perforated blind plates 23 are installed at the upper two ends of the tee pipe 2, and the power supply wiring passes through the perforated blind plates 23.
[0042] Perforated blind flanges 23 are installed on both sides of the upper part of the tee pipe 2. The power supply wiring passes through the perforated blind flanges 23. The perforated blind flanges 23 serve two purposes: firstly, they seal the interior of the tee pipe 2 to prevent external debris from entering; secondly, they provide a passage for the power supply wiring, and simultaneously provide some fixation and protection for the wiring. This protects the electrical components inside the tee pipe 2, preventing external debris from interfering with the wiring connections and device operation; it also standardizes the routing of the power supply wiring, making the wiring layout neat and orderly, facilitating inspection and maintenance, and preventing loose connections and damage caused by random wiring movement.
[0043] Furthermore, such as Figure 1 , Figure 3 As shown, the two ends of the conductive long bolt 22 are connected by connecting nuts 221, and the connection points are sealed with high-temperature insulating sealant.
[0044] The conductive bolt 22 is connected to the wiring at both ends via connecting nuts 221. The tightening action of the nuts 221 securely fixes the power supply wiring and the U-shaped heating tube connection wire to both ends of the conductive bolt 22. The wiring joints are sealed with high-temperature insulating sealant, which provides insulation and sealing to prevent leakage and the ingress of external impurities. This ensures a secure connection between the conductive bolt 22 and the wiring, guaranteeing the stability and reliability of the circuit connection. The use of high-temperature insulating sealant effectively prevents leakage, ensuring electrical safety, and also prevents external impurities from corroding the wiring joints, extending the service life of the device.
[0045] Furthermore, such as Figure 1 , Figure 3 As shown, both the conductive bolt 22 and the insulating tube bundle 21 are L-shaped structures, which are adapted to the internal channels of the tee tube 2. The upper ends are located at the upper two ends of the tee tube 2, and the lower ends are located at the lower end of the tee tube 2.
[0046] Both the conductive bolt 22 and the insulating tube bundle 21 are L-shaped, adapting to the internal channel of the tee tube 2. This shape design allows the conductive bolt 22 and the insulating tube bundle 21 to fit tightly inside the tee tube 2, making reasonable use of the space structure of the tee tube 2 to achieve effective connection and insulation isolation of the power supply wiring and the U-shaped heating tube connection wire within the tee tube 2. Optimizing the internal structural layout of the device and making full use of the space in the tee tube 2 results in a compact and reasonable wiring connection. The L-shaped structure ensures a reasonable routing of the wiring within the tee tube 2, avoiding wiring crossings and tangles, improving the electrical performance and stability of the device, and facilitating installation and maintenance.
[0047] In use, the quick-clamp external ceramic insulating tube bundle device of this utility model first passes the lower end of tube 1 through the round hole on the surface of cabinet 4 and insulation cover 41 and is welded and fixed, realizing a stable connection between tube 1 and the inside of cabinet 4. At the same time, the top end of tube 1 extends 80mm beyond the top surface of cabinet 4, leaving space for the installation of subsequent components. A connector 11 is installed on the upper end of tube 1. The connector 11 is connected and fixed to the lower end of tee tube 2 by clamp 3, so that tee tube 2 can be detachably installed on tube 1, forming the main connecting frame of the device.
[0048] The power supply wiring passes through the perforated blind plates 23 at both ends of the upper part of the tee pipe 2 and enters the interior of the tee pipe 2. The two ends of the conductive long bolt 22 are firmly connected to the power supply wiring and the U-shaped heating tube connection wire respectively through connecting nuts 221, ensuring smooth current transmission. Since both the conductive long bolt 22 and the insulating tube bundle 21 are L-shaped structures and are compatible with the internal channels of the tee pipe 2, they are tightly installed inside the tee pipe 2. The conductive long bolt 22 is within the perforated channel formed by the insulating tube bundle 21, which not only achieves a reasonable layout of the circuit but also ensures mutual insulation between the circuits.
[0049] The insulating tube bundle 21 forms a perforated channel inside the tee tube 2, providing insulation and isolation for the conductive bolt 22 and the wiring, preventing short circuits. Simultaneously, the sealing ring installed on the outside of the connector 11 fills the gap between the connector 11 and the tee tube 2, forming a sealed structure to prevent external moisture, dust, and other impurities from entering the device. The connection point of the conductive bolt 22 is sealed with high-temperature insulating sealant to further prevent leakage and the intrusion of external impurities, ensuring electrical safety.
[0050] When the device is powered on, current is transmitted from the power supply wire through the conductive bolt 22 to the U-shaped heating tube connection wire, providing electrical energy to the U-shaped heating tube to generate heat for the sterilization work of the dry heat sterilizer. During the operation of the device, all components work closely together. The clamp 3 ensures a secure connection between the tee pipe 2 and the round pipe 1, and the perforated blind plate 23 protects the internal electrical components of the tee pipe 2 and standardizes the wiring route. The entire device operates stably in an insulated and sealed state, ensuring the safe and efficient operation of the dry heat sterilizer.
[0051] When the device malfunctions and needs repair or when a component is damaged and needs replacement, simply loosen the clamp 3 to separate the tee pipe 2 from the round pipe 1. This allows for quick and easy inspection and replacement of the internal insulating tube bundle 21, conductive long bolts 22, and wiring connection points, eliminating the need for complex operations such as cutting the equipment. This greatly improves repair efficiency and reduces maintenance costs.
[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A quick-release type external ceramic insulating tube bundle device, comprising a circular tube (1), characterized in that: The round tube (1) is connected to the top of the cabinet (4). The lower end of the round tube (1) is connected to the interior of the cabinet (4). The upper end of the round tube (1) is detachably connected to a three-way tube (2). An insulating tube bundle (21) is provided inside the three-way tube (2). The insulating tube bundle (21) forms a hole-like channel inside the three-way tube (2). A conductive long bolt (22) is placed in the hole-like channel. The two ends of the conductive long bolt (22) are respectively connected to the power supply wiring and the U-shaped heating tube connection line.
2. The quick-release external ceramic insulating tube bundle device according to claim 1, characterized in that: Both the cabinet (4) and the heat insulation cover (41) have round holes on their surfaces. The lower end of the round tube (1) passes through the round hole, and the round tube (1) is welded and fixed to the round hole.
3. The quick-release external ceramic insulating tube bundle device according to claim 1, characterized in that: The top end of the round tube (1) extends 80 mm beyond the top surface of the cabinet (4).
4. The quick-release external ceramic insulating tube bundle device according to claim 1, characterized in that: The upper end of the round pipe (1) is equipped with a connector (11), and the connector (11) is connected and fixed to the lower end of the three-way pipe (2) by a clamp (3).
5. The quick-release type external ceramic insulating tube bundle device according to claim 4, characterized in that: A sealing ring is installed on the outside of the connector (11).
6. The quick-release external ceramic insulating tube bundle device according to claim 1, characterized in that: The upper two ends of the three-way pipe (2) are equipped with perforated blind plates (23), and the power supply wiring passes through the perforated blind plates (23).
7. The quick-release external ceramic insulating tube bundle device according to claim 1, characterized in that: The two ends of the conductive long bolt (22) are connected by connecting nuts (221), and the connection points are sealed with high-temperature insulating sealant.
8. The quick-release external ceramic insulating tube bundle device according to claim 1, characterized in that: The conductive bolt (22) and the insulating tube bundle (21) are both L-shaped structures, and their shapes are adapted to the internal channels of the three-way tube (2). The upper end is located at the upper two ends of the three-way tube (2), and the lower end is located at the lower end of the three-way tube (2).