Automatic blanking melting point instrument

Abstract

The utility model discloses an automatic blanking melting point instrument which comprises a heating chamber main body, the top of the heating chamber main body is provided with a detection port, a material collecting sleeve used for loading a melting point pipe is arranged in the detection port, sliding rails are arranged on the two sides of the inner wall of the detection port, and first pulleys are connected to the sliding rails in a sliding mode; the first pulley is coaxially connected with a telescopic clamping arm, the telescopic clamping arm is used for clamping and transporting an aggregate sleeve, and the length of the aggregate sleeve is greater than the depth of the detection port; and after being transported to a first height from the bottom of the detection port under the action of external force, the material collecting sleeve freely falls. The melting point detection device can relieve the pressure of manually loading and taking materials and improve the melting point detection efficiency.

Description

Technical Field

[0001] The utility model relates to the field of melting point instruments, in particular to an automatic blanking melting point instrument. Background Art

[0002] The melting point of a substance is the temperature at which the solid and liquid states of a pure substance are in equilibrium under a certain pressure. In other words, at this pressure and melting point temperature, the chemical potential of a pure substance in solid state is equal to the chemical potential of a pure substance in liquid state. The determination of melting point is generally used to detect the purity of solid substances and to qualitatively identify solid substances. It is simple and efficient. Therefore, the determination of melting point plays an important role in chemical industry and pharmaceutical research.

[0003] A melting point meter is an analytical instrument used to determine the melting point of solid crystalline substances. The principle of some melting point meters is that when the sample reaches the melting point, its transmittance will change, and the melting point meter system can automatically detect this change. The use of a melting point meter requires the material to be loaded into a melting point tube (usually a capillary tube) before it can be measured. The process of loading the melting point tube with a substance is as follows: Take an appropriate amount of the test sample and place it on a clean surface dish. Insert the open end of the melting point tube downward into the powder and take a small amount of powder. Take a hollow glass tube about 30-40cm long and stand it vertically on a clean surface dish. Place the melting point tube into the glass tube from the top and let it fall freely. Repeat several times to make the powder tightly gather at the molten seal end of the capillary tube. This loading and unloading method is time-consuming and labor-intensive, and reduces the efficiency of melting point detection. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the utility model is to provide an automatic blanking melting point instrument, aiming to reduce the pressure of manual loading and unloading of materials and improve the melting point detection efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic blanking melting point instrument, which includes: a heating chamber body, a detection port is opened on the top of the heating chamber body, a material collection sleeve for loading a melting point tube is arranged in the detection port, slide rails are arranged on both sides of the inner wall of the detection port, a first pulley is slidably connected to the slide rail, the first pulley is coaxially connected to a telescopic clamping arm, the telescopic clamping arm is used to clamp and transport the material collection sleeve, and the length of the material collection sleeve is greater than the depth of the detection port; wherein, after the material collection sleeve is transported from the bottom of the detection port to a first height by an external force, it falls freely.

[0006] Optionally, a fixed wall is provided on the inner wall of the aggregate sleeve, and the fixed wall is connected to the inner wall of the aggregate sleeve via a first spring, and the fixed wall is used to fix the melting point tube; wherein, the first spring enables the fixed wall to expand and contract to adapt to the melting point tubes of different diameters.

[0007] Optionally, a buffer pad is provided at the bottom of the detection port, and the buffer pad is used to prevent the aggregate sleeve from being damaged when it falls.

[0008] Optionally, the aggregate sleeve is made of a material having a thermal conductivity greater than a preset value.

[0009] Optionally, the heating chamber body includes a control MCU, the control MCU is connected to a control module, the control module includes an operation button panel, and the operation button panel is arranged on a side of the heating chamber body.

[0010] Optionally, a display panel is provided on the side wall of the heating chamber body, and the display panel is used to display the melting point temperature of the material to be detected.

[0011] Optionally, the heating chamber body further includes a protective shell arranged on its periphery, and the protective shell is used to protect the heating chamber body.

[0012] The beneficial effects of the utility model are as follows: 1. The utility model is provided with a collection sleeve for loading a melting point tube in the detection port, and slide rails are provided on both sides of the inner wall of the detection port. A first pulley is slidably connected to the slide rail, and the first pulley is coaxially connected to a telescopic clamping arm. The telescopic clamping arm is used to clamp and transport the collection sleeve, and the length of the collection sleeve is greater than the depth of the detection port; wherein, after the collection sleeve is transported from the bottom of the detection port to the first height by an external force, it falls freely, and repeats a preset number of times to shrink the material to the bottom of the melting point tube. The utility model, through the above structure, does not need to manually take the glass tube after the material to be detected is loaded and taken. The melting point tube is placed in the glass tube from the upper mouth and allowed to fall freely. Repeating the steps several times can shrink the material to be detected at the bottom of the melting point tube, greatly reducing the manual pressure, avoiding human operation errors, and improving the melting point detection efficiency. 2. The inner wall of the collection sleeve of the utility model is provided with a fixed wall, and the fixed wall is connected to the inner wall of the collection sleeve through a first spring, and the fixed wall is used to fix the melting point tube. The fixed melting point tube prevents the melting point tube from colliding with the aggregate sleeve during the falling process and also prevents the melting point tube from tilting and causing material to be thrown. 3. A buffer pad is provided at the bottom of the detection port of the utility model, and the buffer pad is used to prevent the falling aggregate sleeve from being damaged.

[0013] In summary, the utility model can reduce the pressure of manual loading and unloading of materials and improve the efficiency of melting point detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of an automatic blanking melting point instrument in a specific embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure inside the detection port in a specific implementation manner of the utility model. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0018] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0019] The applicant has found through research that the use of a melting point instrument requires the material to be loaded into a melting point tube (generally a capillary tube) before it can be measured. The process of loading the melting point tube with a substance is as follows: Take an appropriate amount of the test sample and place it on a clean watch glass. Insert the open end of the melting point tube downward into the powder and take a small amount of powder. Take a hollow glass tube about 30-40cm long and stand it vertically on a clean watch glass. Place the melting point tube into the glass tube from the top and let it fall freely. Repeat several times to allow the powder to gather tightly at the molten-sealed end of the capillary tube. However, the above steps are generally performed manually, which is time-consuming and labor-intensive, and reduces the efficiency of melting point detection. Sometimes operational errors may also occur.

[0020] Therefore, the utility model embodiment provides an automatic blanking melting point instrument, such as Figure 1 and Figure 2 As shown, the automatic blanking melting point instrument comprises: a heating chamber body 1, a detection port 2 is opened on the top of the heating chamber body 1, a collection sleeve 3 for loading a melting point tube 4 is arranged in the detection port 2, slide rails 5 are arranged on both sides of the inner wall of the detection port 2, a first pulley 6 is slidably connected to the slide rail 5, the first pulley 6 is coaxially connected to a telescopic clamping arm 7, the telescopic clamping arm 7 is used to clamp and transport the collection sleeve 3, and the length of the collection sleeve 3 is greater than the depth of the detection port 2; wherein, after the collection sleeve 3 is transported from the bottom of the detection port 2 to the first height by an external force, it falls freely and is repeated a preset number of times to shrink the material to the bottom of the melting point tube.

[0021] It should be noted that, through the arrangement of the slide rail 5, the first pulley 6, the telescopic clamping arm 7 and the material collecting sleeve 3, the material collecting sleeve 3 (when loading the melting point tube 4) can be subjected to external force to fall multiple times to compress the material to the lower part of the melting point tube 4. This reduces manual pressure and improves the melting point detection efficiency.

[0022] The length of the collecting sleeve 3 is greater than the depth of the detection port 2 to ensure that when the collecting sleeve 3 falls to the bottom of the detection port 2, it can be pulled up to the first height by force and then fall again, and the pulling and falling are repeated multiple times to shrink the material to the lower part of the melting point tube 4.

[0023] In a specific embodiment, a fixed wall 8 is provided on the inner wall of the aggregate sleeve 3, and the fixed wall 8 is connected to the inner wall of the aggregate sleeve 3 through a first spring 9, and the fixed wall 8 is used to fix the melting point tube 4; wherein, the first spring 9 enables the fixed wall 8 to expand and contract to adapt to melting point tubes 4 of different diameters.

[0024] It should be noted that if the aggregate sleeve 3 wants to load the melting point tube 4, its inner diameter must be larger than the outer diameter of the melting point tube 4. Therefore, if the melting point tube 4 is not fixed in the aggregate sleeve 3 during the falling process, it may collide with the aggregate sleeve 3, thereby causing damage to both. Therefore, the embodiment of the utility model fixes the melting point tube 4 through the above structure to effectively avoid damage. On the other hand, the fixed wall 8 of the utility model is connected to the inner wall of the aggregate sleeve 3 through the first spring 9, so that the fixed wall 8 can be adjusted and clamped according to the outer diameter of the melting point tube 4, and the scope of application is wider.

[0025] In a specific embodiment, a buffer pad 10 is provided at the bottom of the detection port 2 , and the buffer pad 10 is used to prevent the falling aggregate sleeve 3 from being damaged.

[0026] The buffer pad 10 can be made of rubber.

[0027] In a specific embodiment, the aggregate sleeve 3 is made of a material having a thermal conductivity greater than a preset value.

[0028] It should be noted that the aggregate sleeve 3 has good thermal conductivity so that heat can be transferred to the melting point tube 4 for melting point detection more quickly.

[0029] In a specific embodiment, the heating chamber body 1 includes a control MCU, which is connected to a control module. The control module includes an operation button panel 11 , which is arranged on a side of the heating chamber body 1 .

[0030] In a specific embodiment, a display panel 12 is disposed on the side wall of the heating chamber body 1 , and the display panel 12 is used to display the melting point temperature of the material to be detected.

[0031] In a specific embodiment, the heating chamber body 1 further includes a protective shell arranged on the periphery thereof, and the protective shell is used to protect the heating chamber body 1 .

[0032] In the embodiment of the utility model, a collection sleeve 3 for loading a melting point tube 4 is arranged in the detection port 2, and slide rails 5 are arranged on both sides of the inner wall of the detection port 2. A first pulley 6 is slidably connected to the slide rail 5, and the first pulley 6 is coaxially connected to a telescopic clamping arm 7. The telescopic clamping arm 7 is used to clamp and transport the collection sleeve 3, and the length of the collection sleeve 3 is greater than the depth of the detection port 2; wherein, after the collection sleeve 3 is transported from the bottom of the detection port 2 to the first height by an external force, it falls freely, and repeats a preset number of times to shrink the material to the bottom of the melting point tube. In the embodiment of the utility model, the above structure makes it unnecessary to manually take out the glass tube after the material to be detected is loaded and taken out. The melting point tube 4 is placed in the glass tube from the upper mouth and allowed to fall freely. The steps are repeated several times, so that the material to be detected can be shrunk to the bottom of the melting point tube 4, which greatly reduces the manual pressure, avoids human operation errors, and improves the melting point detection efficiency.

[0033] In the embodiment of the utility model, a fixed wall 8 is provided on the inner wall of the material collection sleeve 3, and the fixed wall 8 is connected to the inner wall of the material collection sleeve 3 through a first spring 9, and the fixed wall 8 is used to fix the melting point tube 4. The fixed melting point tube 4 is prevented from colliding with the material collection sleeve 3 and being damaged during the falling process, and also prevents the melting point tube 4 from tilting and causing material to be thrown.

[0034] In the embodiment of the utility model, a buffer pad 10 is arranged at the bottom of the detection port 2, and the buffer pad 10 is used to prevent the falling aggregate sleeve 3 from being damaged.

[0035] In summary, the embodiments of the present invention can reduce the pressure of manual loading and unloading of materials and improve the efficiency of melting point detection.

[0036] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An automatic blanking melting point instrument, characterized in that: The automatic blanking melting point instrument includes: a heating chamber body, a detection port is opened on the top of the heating chamber body, a collection sleeve for loading a melting point tube is arranged in the detection port, slide rails are arranged on both sides of the inner wall of the detection port, a first pulley is slidably connected to the slide rail, the first pulley is coaxially connected to a telescopic clamping arm, the telescopic clamping arm is used to clamp and transport the collection sleeve, and the length of the collection sleeve is greater than the depth of the detection port; wherein, after the collection sleeve is transported from the bottom of the detection port to a first height by an external force, it falls freely.

2. The automatic blanking melting point instrument according to claim 1, characterized in that: The inner wall of the aggregate sleeve is provided with a fixed wall, the fixed wall is connected to the inner wall of the aggregate sleeve via a first spring, and the fixed wall is used to fix the melting point tube; wherein, the first spring enables the fixed wall to expand and contract to adapt to the melting point tubes of different diameters.

3. The automatic blanking melting point instrument according to claim 1, characterized in that: A buffer pad is provided at the bottom of the detection port, and the buffer pad is used to prevent the falling aggregate sleeve from being damaged.

4. The automatic blanking melting point instrument according to claim 1, characterized in that: The aggregate sleeve is made of a material having a thermal conductivity greater than a preset value.

5. The automatic blanking melting point instrument according to claim 1, characterized in that: The heating chamber body includes a control MCU, the control MCU is connected to a control module, the control module includes an operation button panel, and the operation button panel is arranged on a side of the heating chamber body.

6. The automatic blanking melting point instrument according to claim 1, characterized in that: The side wall of the heating chamber body is provided with a display panel, and the display panel is used to display the melting point temperature of the material to be detected.

7. The automatic blanking melting point instrument according to claim 1, characterized in that: The heating chamber body further includes a protective shell arranged on the periphery thereof, and the protective shell is used to protect the heating chamber body.

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