Protective device for melting point instrument

By designing a multi-layered protective structure and thermal insulation materials, the problem of insufficient protection in melting point apparatus was solved, thereby improving the safety and measurement accuracy of the equipment.

CN224231672UActive Publication Date: 2026-05-12JILIN HERUN CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN HERUN CHEM IND CO LTD
Filing Date
2025-04-28
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The existing single-layer protective cover of melting point apparatus is insufficient in preventing accidental injury, dustproofing, and waterproofing, which affects the operation and measurement accuracy of the equipment, and is difficult to maintain and cannot effectively maintain temperature stability.

Method used

A multi-layer protective structure was designed, comprising a protective outer frame, insert mounting strips, a protective inner plate, and a buffer spring. Combined with thermal insulation materials, it forms a stable protective environment, absorbs external impact forces, and maintains temperature stability.

Benefits of technology

It effectively prevents external interference, protects the melting point apparatus from damage, maintains measurement accuracy, and improves the safety and service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a melting point instrument protection device, which belongs to the technical field of melting point instrument protection, and is characterized in that two protection inner plates are arranged at the lower end of an insertion mounting strip, a plurality of fastening bolts are arranged between the two protection inner plates, a buffer spring is sleeved on each fastening bolt, a filler bin is formed between the two protection inner plates, and a thermal insulation material is filled between the filler bins; and a second protective layer is formed by the protective inner plate, the buffer springs and the fastening bolts. According to the protective device for the melting point instrument, the protective outer frame and the mounting strips ensure that the operation of the melting point instrument is not interfered by the outside. The buffer spring is designed to absorb impact force and protect equipment from being damaged. After external force impact, the protective outer frame can quickly replace the fastening bolts to recover, and normal operation of the melting point instrument is guaranteed. The device design facilitates inspection and replacement of damaged parts and maintains a good state of equipment. Thermal insulation materials (such as rubber and plastic, rock wool and the like) in the filler bin maintain the working temperature of the melting point instrument, and the measurement precision is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of melting point apparatus protection technology, and in particular to a melting point apparatus protection device. Background Technology

[0002] The melting point apparatus uses a linearly calibrated platinum resistance thermometer as the detection element and employs electronic circuitry to achieve rapid "starting temperature" setting and multiple selectable linear heating rates. During the measurement process, the instrument uses a capillary tube as the sample tube as specified in the pharmacopoeia, and observes the melting process of the sample inside the capillary tube through a high-magnification magnifying glass, thereby determining the melting point of the substance.

[0003] In practical use of melting point apparatuses, the exterior is often protected by a single-layer protective cover. This single-layer cover may be limited in its effectiveness in preventing personnel from contacting hazardous areas or moving parts, and cannot adequately reduce the risk of accidental injury. Furthermore, its dustproof and waterproof properties may be unsatisfactory, failing to effectively prevent dust and impurities from entering the equipment or work area, thus affecting the normal operation of the equipment and product quality.

[0004] A single-layer protective cover may have poor sealing, leading to heat loss during operation and failing to achieve the desired energy-saving effect. Especially in testing materials sensitive to heating temperatures, the slow heat dissipation of a single-layer cover can cause temperature deviations after the system reaches steady state, affecting test accuracy. Maintaining and caring for a single-layer protective cover can also be a significant challenge. If the cover is damaged or aged, its protective function will be greatly reduced; therefore, regular inspection and maintenance of the cover's condition are crucial to ensuring the safety of equipment and personnel. Utility Model Content

[0005] The main objective of this invention is to provide a protective device for a melting point apparatus, which can effectively solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A melting point apparatus protective device includes a base, an instrument feeding mechanism, a control cabinet, and a movable material receiving platform. The movable material receiving platform is installed on the base, and the instrument feeding mechanism is installed at the lower end of the control cabinet. The use of the instrument feeding mechanism is controlled by the control cabinet.

[0008] The upper end of the base is equipped with a protective outer frame, and an insertion compartment is opened inside the protective outer frame. The control cabinet is installed on the protective outer frame, forming the first protective layer through the protective outer frame.

[0009] The upper opening of the insertion chamber is provided with a groove, and an insertion installation strip is inserted into the insertion chamber and the groove. The two ends of the insertion installation strip are provided with installation holes.

[0010] The lower end of the insertion installation strip is provided with two protective inner plates, and multiple fastening bolts are provided between the two protective inner plates. Each fastening bolt is fitted with a buffer spring. A filling chamber is formed between the two protective inner plates, and the filling chamber is filled with thermal insulation material. A second protective layer is formed by the protective inner plates, buffer springs and fastening bolts.

[0011] As a preferred embodiment of this application, the side wall of the protective outer frame is provided with a lateral through hole, which is directly opposite the bolt head of the fastening bolt. There is a gap between the protective outer frame and the protective inner plate, and the bolt head of the fastening bolt is placed in the gap.

[0012] As a preferred embodiment of this application, the protective outer frame is fixed to the base by bolts, the insertion mounting strip is adapted to the groove and the insertion chamber, the two ends of the insertion mounting strip are embedded in the groove, and the insertion mounting strip is fixed to the protective outer frame by bolts inserted into the mounting holes;

[0013] As a preferred embodiment of this application, the two protective inner plates are integrated with the insertion installation strip, and the side walls of the protective inner plates are sealed by the isolation strip to form a closed filling chamber;

[0014] As a preferred embodiment of this application, the fastening bolts are fixed to the two protective inner plates by threads, and the buffer spring is placed between the two protective inner plates;

[0015] As a preferred embodiment of this application, the insulation material inside the filling chamber is any one of rubber and plastic insulation material, rock wool, mineral wool, and glass wool.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] To ensure the melting point apparatus is protected from external environmental interference and damage during operation, the secure fastening of the protective outer frame and insertion mounting strips is crucial. Through a carefully designed buffer spring, the protective device effectively absorbs external impact forces, thereby protecting the melting point apparatus from damage.

[0018] When the protective outer frame is unfortunately subjected to external impact, thanks to its flexible design, it can be quickly restored to its original stable state by replacing the fastening bolts, ensuring that the melting point apparatus can continue to work normally. In addition, the design of the protective device also takes into account the convenience of quickly inspecting and replacing damaged parts, such as fastening bolts and insulation materials, thus ensuring that the melting point apparatus is always in optimal working condition.

[0019] The insulation materials filling the packing chamber, including but not limited to rubber and plastic insulation materials, rock wool, mineral wool, and glass wool, effectively maintain the operating temperature of the melting point apparatus, thus ensuring that the measurement accuracy is not affected by external temperature fluctuations. A stable protective environment and a suitable operating temperature play a crucial role in improving the measurement accuracy of the melting point apparatus. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a diagram showing the base and protective mechanism of this utility model;

[0022] Figure 3 This is an exploded view of the protective outer frame, protective inner plate, insert mounting strip, fastening bolts, and buffer spring of this utility model;

[0023] Figure 4 The diagram shows the protective inner plate, the insert mounting strip, the fastening bolts, and the buffer spring of this utility model.

[0024] Figure 5 This is an enlarged schematic diagram of point A in section 4.

[0025] In the diagram: 1. Base; 2. Instrument feeding mechanism; 3. Control cabinet; 4. Mobile material receiving platform; 5. Protective outer frame; 6. Insertion bin; 7. Embedded groove; 8. Lateral through hole; 9. Insertion mounting strip; 10. Mounting hole; 11. Fastening bolt; 12. Buffer spring; 13. Protective inner plate; 14. Filling bin. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0027] like Figure 1 - Figure 5 As shown, a protective device for a melting point apparatus mainly consists of a base 1, an instrument feeding mechanism 2, a control cabinet 3, and a movable material receiving platform 4. The base 1 forms the foundation of the entire device. The instrument feeding mechanism 2 is installed at the lower end of the control cabinet 3. The control cabinet 3 controls the operation of the instrument feeding mechanism 2 through its internal control system to ensure the normal operation of the melting point apparatus. This device is designed to provide a stable and safe working environment for the melting point apparatus, thereby improving its measurement accuracy and service life.

[0028] A protective outer frame 5 is installed on the upper end of the base 1. An insertion chamber 6 is opened inside the protective outer frame 5. The control cabinet 3 is installed on the protective outer frame 5. The protective outer frame 5 forms the first protective layer to protect the melting point apparatus from the influence of the external environment. The design of the protective outer frame 5 not only provides a robust shell for the melting point apparatus, but also effectively isolates external dust, moisture and other factors that may damage the melting point apparatus through its structural design.

[0029] The upper opening of the insertion chamber 6 has a groove 7, into which an insertion mounting strip 9 is inserted. Mounting holes 10 are provided at both ends of the insertion mounting strip 9 to facilitate fixing it to the protective outer frame 5. This design allows the insertion mounting strip 9 to be securely fixed to the protective outer frame 5, thus providing additional protection for the melting point apparatus.

[0030] The lower end of the insertion mounting strip 9 is provided with two protective inner plates 13, and multiple fastening bolts 11 are provided between the two protective inner plates 13. Each fastening bolt 11 is fitted with a buffer spring 12. A filling chamber 14 is formed between the two protective inner plates 13, and the filling chamber 14 is filled with thermal insulation material. The protective inner plates 13, buffer springs 12, and fastening bolts 11 form a second protective layer to further protect the melting point apparatus. This design not only enhances the protective capability of the melting point apparatus, but also effectively absorbs external impact forces through the design of the buffer springs 12, protecting the melting point apparatus from damage.

[0031] The protective outer frame 5 has a lateral through hole 8 on its side wall, which is directly opposite the head of the fastening bolt 11. There is a gap between the protective outer frame 5 and the protective inner plate 13, and the head of the fastening bolt 11 is placed in the gap. When the protective outer frame 5 or the protective inner plate 13 at the fastening bolt 11 is dented, a new fastening bolt 11 is replaced. By tightening the fastening bolt 11, the protective outer frame 5 is forced to protrude outward, restoring it to its original shape. This design allows the protective outer frame 5 to quickly return to its original shape after being subjected to external impact, ensuring the normal operation of the melting point apparatus.

[0032] The protective outer frame 5 is fixed to the base 1 with bolts. The insertion mounting strip 9 is adapted to the groove 7 and the insertion chamber 6. Both ends of the insertion mounting strip 9 are embedded in the groove 7, and the insertion mounting strip 9 is fixed to the protective outer frame 5 by bolts inserted into the mounting holes 10. This design allows the protective outer frame 5 and the insertion mounting strip 9 to be firmly fixed together, providing a stable protective environment for the melting point apparatus.

[0033] The two protective inner plates 13 are integrated with the insertion mounting strip 9. The side walls of the protective inner plates 13 are sealed by isolation strips to form a closed filling chamber 14, ensuring the filling effect of the insulation material. This design not only enhances the protective capability of the protective inner plates 13, but also effectively prevents the loss of insulation material through the closed design, ensuring the working environment temperature of the melting point apparatus.

[0034] The fastening bolts 11 are threaded onto the two inner protective plates 13, and the buffer spring 12 is placed between the two inner protective plates 13 to provide a certain buffering effect and prevent the inner protective plates 13 from being damaged when subjected to external forces. This design allows the inner protective plates 13 to effectively absorb the impact force when subjected to external impact, protecting the melting point apparatus from damage.

[0035] The insulation material inside the filling chamber 14 is any one of rubber-plastic insulation materials, rock wool, mineral wool, or glass wool. These materials have good thermal insulation properties, which can effectively maintain the working environment temperature of the melting point apparatus and ensure its measurement accuracy. This design not only improves the working efficiency of the melting point apparatus, but also effectively improves its measurement accuracy through the use of insulation materials.

[0036] During assembly: Place the base 1 in the appropriate position. Install the control cabinet 3 on the upper end of the base 1. Install the instrument feeding mechanism 2 on the lower end of the control cabinet 3. Install the protective outer frame 5 on the upper end of the base 1. Ensure that the protective outer frame 5 has an insertion chamber 6 inside. Insert the insertion mounting strip 9 into the insertion chamber 6 and the groove 7. Ensure that both ends of the insertion mounting strip 9 are inserted into the mounting holes 10 in the groove 7. Use bolts to fix the insertion mounting strip 9 to the protective outer frame 5. Fix the two protective inner plates 13 to the lower end of the insertion mounting strip 9. Use fastening bolts 11 to fix the protective inner plates 13 to the insertion mounting strip 9. Fit the buffer springs 12 onto the fastening bolts 11. Fill the filling chamber 14 formed by the protective inner plates 13 with one of the following: rubber and plastic insulation material, rock wool, mineral wool, or glass wool. Use bolts to fix the protective outer frame 5 to the base 1.

[0037] Confirm that the outer protective frame 5, insert mounting strip 9, inner protective plate 13, and fastening bolts 11 are securely installed and undamaged. Confirm that the insulation material in the filling chamber 14 is intact and has not leaked. Confirm that the control system of the control cabinet 3 is functioning properly to ensure the normal operation of the instrument's feeding mechanism 2. Before operating the melting point apparatus, ensure that all protective devices are correctly installed and in good condition. Operate according to the melting point apparatus's operating procedures. Monitor the temperature, humidity, and other conditions of the melting point apparatus's operating environment to ensure they are within suitable ranges. Regularly check the fastening bolts 11 and buffer springs 12 of the protective devices to ensure they are not loose or damaged. Regularly check and replace the insulation material to ensure its insulation performance is good. If the outer protective frame 5 or inner protective plate 13 is dented or damaged, immediately replace the fastening bolts 11 and tighten them to restore their original condition. If any abnormality is found, immediately stop operation and conduct inspection and repair.

[0038] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] 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 illustrative of the principles of this 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective device for a melting point apparatus, comprising a base (1), an instrument feeding mechanism (2), a control cabinet (3), and a movable feeding platform (4), wherein the movable feeding platform (4) is mounted on the base (1), the instrument feeding mechanism (2) is mounted on the lower end of the control cabinet (3), and the use of the instrument feeding mechanism (2) is controlled by the control cabinet (3), characterized in that: The upper end of the base (1) is equipped with a protective outer frame (5), and an insertion compartment (6) is opened inside the protective outer frame (5). The control cabinet (3) is installed on the protective outer frame (5), and the first protective layer is formed through the protective outer frame (5). The upper opening of the insertion chamber (6) is provided with a groove (7), and an insertion installation strip (9) is inserted into the insertion chamber (6) and the groove (7), and installation holes (10) are provided at both ends of the insertion installation strip (9). The lower end of the insertion installation strip (9) is provided with two protective inner plates (13), and multiple fastening bolts (11) are provided between the two protective inner plates (13). Each fastening bolt (11) is fitted with a buffer spring (12). A filling chamber (14) is formed between the two protective inner plates (13). The filling chamber (14) is filled with thermal insulation material. A second protective layer is formed by the protective inner plates (13), the buffer springs (12) and the fastening bolts (11).

2. The melting point apparatus protective device according to claim 1, characterized in that: The protective outer frame (5) has a lateral through hole (8) on its side wall. The lateral through hole (8) is directly opposite the head of the fastening bolt (11). There is a gap between the protective outer frame (5) and the protective inner plate (13), and the head of the fastening bolt (11) is placed in the gap.

3. The melting point apparatus protective device according to claim 2, characterized in that: The protective outer frame (5) is fixed to the base (1) by bolts. The insertion mounting strip (9) is adapted to the groove (7) and the insertion chamber (6). The two ends of the insertion mounting strip (9) are embedded in the groove (7) and the insertion mounting strip (9) is fixed to the protective outer frame (5) by bolts inserted into the mounting holes (10).

4. The melting point apparatus protective device according to claim 3, characterized in that: The two protective inner plates (13) are integrated with the insertion installation strip (9). The side walls of the protective inner plates (13) are closed by the isolation strip to form a closed filling chamber (14).

5. A melting point apparatus protective device according to claim 4, characterized in that: The fastening bolt (11) is fixed to the two protective inner plates (13) by threads, and the buffer spring (12) is placed between the two protective inner plates (13).

6. A melting point apparatus protective device according to claim 5, characterized in that: The insulation material inside the filling chamber (14) is any one of rubber and plastic insulation material, rock wool, mineral wool, and glass wool.