COD (Chemical Oxygen Demand) constant-temperature heater for laboratory

Abstract

The utility model belongs to the technical field of heaters. In view of the problems that water drips when a test tube is taken out and the test tube needs to be cleaned frequently in the existing COD constant-temperature heater, the utility model discloses a COD constant-temperature heater for a laboratory, which comprises a COD constant-temperature heater body, and the COD constant-temperature heater body is characterized in that a water tank is arranged in a heat insulation box; the heating plate is arranged at the inner bottom of the water tank; a cleaning assembly is arranged at the top of the heat insulation box and comprises a fixed seat penetrating through the top of the heat insulation box; the arc-shaped clamping plates are symmetrically arranged in the fixed seat; the first adsorption sponge is arranged on the inner side of the arc-shaped clamping plate; the test tube is arranged on the inner side of the first adsorption sponge, and by arranging the cleaning assembly, the situation that when the test tube is pulled out, water stains on the outer side and the bottom of the test tube can drip on the heater and the ground of a laboratory, so that experimenters need to frequently clean the water stains dripping on the heater and the ground of the laboratory, and labor force and a large amount of time are wasted is avoided; therefore, the working efficiency is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heaters, and particularly relates to a COD constant temperature heater for laboratories. Background Art

[0002] As we all know, COD constant temperature heater is a device used to convert electrical energy into thermal energy and transfer thermal energy resources to adjust the temperature of the working environment when processing related high-precision parts, thereby ensuring the processing effect of parts. It has been widely used in the field.

[0003] When taking out the test tube from the existing COD constant temperature heater, water stains on the outside of the test tube will drip onto the heater and the laboratory floor, causing the experimenter to frequently clean the water stains on the heater and the laboratory floor, wasting labor and a lot of time, thereby reducing work efficiency. Utility Model Content

[0004] In view of the problems of dripping water when taking out the test tube and the need for frequent cleaning in the existing COD thermostatic heater, one of the purposes of the utility model is to provide a laboratory COD thermostatic heater, which can remove water droplets attached to the outside of the test tube after heating.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A COD constant temperature heater for laboratory use, comprising a COD constant temperature heater body, wherein the COD constant temperature heater body comprises:

[0007] A heat-insulating box, wherein a water tank is arranged inside the box;

[0008] A heating plate, arranged at the inner bottom of the water tank;

[0009] A cleaning assembly is provided on the top of the heat insulation box, and the cleaning assembly comprises:

[0010] A fixing seat, which passes through the top of the heat insulation box;

[0011] An arc-shaped clamping plate, symmetrical to the interior of the fixing seat;

[0012] A first adsorption sponge is arranged on the inner side of the arc-shaped clamping plate;

[0013] The test tube is arranged on the inner side of the first adsorption sponge.

[0014] In one of the technical solutions disclosed in the present utility model, a support ring is provided at the bottom of the fixing seat, and a second adsorption sponge is provided inside the support ring.

[0015] In one of the technical solutions disclosed in the present utility model, the outer side of the arc-shaped clamping plate and the fixed

[0016] Springs are arranged between the inner side walls of the fixed seat.

[0017] In one of the technical solutions disclosed in the present utility model, the outer side of the arc-shaped clamping plate and the fixed

[0018] A telescopic tube matching the spring is arranged between the inner side walls of the fixed seat and is fixed to the inner side wall of the fixed seat by bolts.

[0019] In one of the technical solutions disclosed in the utility model, the arc-shaped clamping

[0020] A first Velcro is provided between the plates, and the plates are connected and fixed by the first Velcro.

[0021] In one of the technical solutions disclosed in the utility model, the bottom of the fixing seat is provided with a

[0022] The connecting seat of the supporting ring is fixed by bolts.

[0023] In one of the technical solutions disclosed in the utility model, the support ring and the second adsorption sponge

[0024] A second Velcro is provided between the two parts, and the connection and fixation are performed through the second Velcro.

[0025] In one of the technical solutions disclosed in the utility model, a connecting block is provided on the outer side of the fixing seat.

[0026] The top of the heat insulation box is provided with a groove matching the connecting block and is fixed by bolts.

[0027] From the above description, it can be seen that the beneficial effects of the utility model are:

[0028] 1. Through the first adsorption sponge and the second adsorption sponge, when the heated test tube is pulled out, the water stains on the outside of the test tube will be absorbed by the first adsorption sponge in the fixed seat, and when the test tube is pulled out of the support ring upward, the second adsorption sponge will rebound and shrink into the support ring. At this time, the test tube on the top of the second adsorption sponge can clean the water stains on the bottom of the test tube by rotating, avoiding the water stains on the outside and bottom of the test tube from dripping onto the heater and the laboratory floor when the test tube is pulled out, resulting in the experimenter having to frequently clean the water stains dripping on the heater and the laboratory floor, wasting labor and a lot of time, thereby reducing work efficiency.

[0029] 2. Through the telescopic tube and the spring, the arc-shaped clamping plate can be extended and retracted left and right according to the size of the test tube, and the test tube is tightly clamped, so that the device can be applied to test tubes of different sizes, increasing the practicality and flexibility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a structural schematic diagram of the utility model.

[0032] Figure 2 It is a schematic structural diagram of the cross section of the utility model.

[0033] Figure 3 It is a structural schematic diagram of the cleaning component in the utility model.

[0034] Figure 4 It is a schematic structural diagram of the first adsorption cotton in the utility model.

[0035] Figure 5 It is a schematic structural diagram of the second adsorption cotton in the utility model.

[0036] Figure 6 for Figure 3 A magnified schematic diagram of center A.

[0037] Figure 7 for Figure 2 A magnified schematic diagram of point B in the middle.

[0038] Figure markings: 1-COD constant temperature heater body; 11-insulation box; 12-water tank; 13-heating plate; 14-test tube; 2-cleaning assembly; 21-fixed seat; 211-connecting block; 212-groove; 22-spring; 221-telescopic tube; 23-arc clamping plate; 24-first adsorption sponge; 25-support ring; 26-second adsorption sponge; 27-connecting seat; 28-first Velcro; 29-second Velcro. DETAILED DESCRIPTION

[0039] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0042] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0044] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0045] The utility model embodiment discloses a COD constant temperature heater 3 for laboratory use, and its structure is as shown in the attached figure. Figure 1 ~

[0046] Attached Figure 7As shown, the COD constant temperature heater body 1 includes: a water tank 12 is arranged inside the heat insulation box 11; a heating plate 13 is arranged at the inner bottom of the water tank 12; a cleaning component 2 is arranged on the top of the heat insulation box 11, and the cleaning component 2 includes: a fixing seat 21 passing through the top of the heat insulation box 11; an arc-shaped clamping plate 23 is symmetrical to the inside of the fixing seat 21; a first adsorption sponge 24 is arranged on the inner side of the arc-shaped clamping plate 23; a test tube 14 is arranged on the inner side of the first adsorption sponge 24

[0047] With the above structure, when in use, the heating plate 13 is started through an external power supply to heat the water tank 12. After heating to a predetermined temperature, the test tube 14 is inserted into the water tank 12 through the fixing seat 21 and the first adsorption sponge 24. The water is heated and then the test tube 14 is heated by hot water. The method has conventional functional characteristics such as fast heating speed, uniform temperature, low power consumption, simple operation, stable and reliable performance. After the test tube 14 is heated, when it is pulled out, the water stains on the outside of the test tube 14 will be absorbed by the first adsorption sponge 24 in the fixing seat 21, so that when the test tube 14 is pulled out, the water stains on the outside of the test tube 14 will not drip onto the heater and the laboratory floor, which causes the experimenter to frequently clean the water stains dripping on the heater and the laboratory floor, wasting labor and a lot of time, thereby reducing work efficiency.

[0048] Specifically, the model of the heating plate 13 is HPRH-4030, and the working principle is that a high-frequency high-frequency current flows to a heating coil wound into a ring or other shape. As a result, a strong magnetic flux with an instantaneous change of polarity is generated in the coil. When a heated object such as a metal is placed in the coil, the magnetic flux will penetrate the entire heated object, and a corresponding large eddy current will be generated inside the heated object in the opposite direction of the heating current. Due to the existence of resistance in the heated object, a lot of Joule heat will be generated, causing the temperature of the object itself to rise rapidly. The purpose of heating all metal materials is achieved. The corresponding principle structure is not drawn in the attached figure in this section.

[0049] In a more specific embodiment, a support ring 25 is provided at the bottom of the fixing seat 21, and a second adsorption sponge 26 is provided inside the support ring 25. The second adsorption sponge 26 has a certain elasticity. When the test tube passes through the support ring 25, the second adsorption sponge 26 will push the support ring 25 downward. When the test tube 14 is pulled out of the support ring 25 upward, the second adsorption sponge 26 shrinks into the support ring 25 by rebounding. At this time, the test tube 14 on the top of the second adsorption sponge 26 can be rotated to clean the water stains at the bottom of the test tube 14, thereby preventing the residual water stains at the bottom of the test tube 14 from dripping onto the heater and the laboratory floor, thereby increasing the dryness of the water stains on the test tube 14 after cleaning.

[0050] In a more specific embodiment, the outer side of the arc-shaped clamping plate 23 and the inner side wall of the fixing seat 21 are

[0051] A spring 22 is arranged between the arc-shaped clamping plate 23 and the first adsorption sponge 24 so that the arc-shaped clamping plate 23 and the first adsorption sponge 24 can be extended and retracted left and right according to the size of the test tube 14, so that the device can be applied to test tubes 14 of different sizes, thereby increasing the practicality and flexibility of the device.

[0052] In a more specific embodiment, the outer side of the arc-shaped clamping plate 23 and the inner side wall of the fixing seat 21 are

[0053] A telescopic tube 221 is provided between the spring 22 to support the spring 22 and the arc-shaped clamping plate 23 and the first

[0054] The adsorption sponge 24 prevents the spring 22 from bearing a certain weight and driving the arc-shaped clamping plate 23 and the first adsorption sponge

[0055] 24 falls toward the bottom of the water tank 12, and the spring 22 bends during the long rebound movement, increasing the elastic

[0056] The service life of the spring is extended, and the inner wall of the fixing seat 21 is fixed by bolts, and the arc is connected by welding.

[0057] The clamping plate 23 is fixedly connected, which increases the convenience of disassembling and assembling the telescopic tube 221 and the arc-shaped clamping plate 23.

[0058] In a more specific embodiment, a first adsorption sponge 24 is provided between the arc-shaped clamping plate 23.

[0059] A Velcro 28 is provided, and the first Velcro 28 is used to connect and fix the first adsorption sponge 24. When the water content inside the first adsorption sponge 24 reaches full, the first adsorption sponge 24 is removed through the first Velcro 28 for replacement.

[0060] In a more specific embodiment, the bottom of the fixing seat 21 is provided with a connection for matching the support ring 25.

[0061] The seat 27 is connected and fixed by bolts. The fixing seat 21 is installed and removed by removing the bolts of the connecting seat 27, which increases the convenience of installing and removing the fixing seat 21.

[0062] In a more specific embodiment, a second adsorption sponge 26 is provided between the support ring 25 and the second adsorption sponge 26.

[0063] The second adsorption sponge 29 is connected and fixed by the Velcro 29, and the second Velcro 29 increases the convenience of replacing the second adsorption sponge 29.

[0064] In one of the technical solutions disclosed in the present utility model, a connecting block 211 is provided on the outer side of the fixing seat 21, and a groove 212 matching the connecting block 211 is provided on the top of the heat insulation box 11 and fixed by bolts. When installing the fixing seat 21, the connecting block 211 on the outer side of the fixing seat 21 is inserted into the groove 212 on the top of the heat insulation box 11 and fixed by bolts. When dismantling, the fixing seat 21 can be pulled out by removing the bolts on the connecting block 211, thereby increasing the convenience of the fixing seat 21.

[0065] From the above description, it can be seen that the use process of the embodiment of the utility model is:

[0066] (1) Using an external power source, the heating plate 13 is started to heat the water tank 12 to a predetermined temperature;

[0067] (2) After heating to a predetermined temperature, the test tube 14 is inserted into the water tank 12 through the fixing seat 21 and the first adsorption sponge 24;

[0068] (3) After the test tube is heated, when the test tube is pulled upward, the water stains on the outside of the test tube will be absorbed by the first adsorption sponge 24 in the fixing seat 21;

[0069] (4) When the test tube 14 is pulled upward out of the support ring 25, the second adsorption sponge 26 rebounds and shrinks into the support ring 25. By rotating the test tube 14, the water stains at the bottom of the test tube 14 can be cleaned by the second adsorption sponge 26.

[0070] It can be seen from the above description that the beneficial effects of the embodiments of the utility model are:

[0071] When the heated test tube is pulled out, the water stains on the outside of the test tube will be absorbed by the first adsorption sponge 24 in the fixing seat 21, and when the test tube 14 is pulled out of the support ring 25 upward, the second adsorption sponge 26 shrinks into the support ring 25 by rebounding. At this time, the test tube 14 on the top of the second adsorption sponge 26 can clean the water stains on the bottom of the test tube 14 by rotating, so as to avoid the water stains on the outside and bottom of the test tube 14 dripping onto the heater and the laboratory floor when the test tube 14 is pulled out, which causes the experimenters to frequently clean the water stains dripping on the heater and the laboratory floor, wasting labor and a lot of time, thereby reducing work efficiency.

[0072] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A COD constant temperature heater for laboratory use, comprising a COD constant temperature heater body, wherein the COD constant temperature heater body comprises: A heat-insulating box, wherein a water tank is arranged inside the box; A heating plate, arranged at the inner bottom of the water tank; It is characterized in that a cleaning component is provided on the top of the heat insulation box, and the cleaning component comprises: A fixing seat, which passes through the top of the heat insulation box; An arc-shaped clamping plate, symmetrical to the interior of the fixing seat; A first adsorption sponge is arranged on the inner side of the arc-shaped clamping plate; The test tube is arranged on the inner side of the first adsorption sponge.

2. The COD constant temperature heater for laboratory use according to claim 1, characterized in that: A support ring is arranged at the bottom of the fixing seat, and a second adsorption sponge is arranged inside the support ring.

3. The COD constant temperature heater for laboratory use according to claim 1, characterized in that: A spring is arranged between the outer side of the arc-shaped clamping plate and the inner side wall of the fixing seat.

4. The COD constant temperature heater for laboratory use according to claim 3, characterized in that: A telescopic tube matching the spring is arranged between the outer side of the arc-shaped clamping plate and the inner side wall of the fixing seat, and is fixed to the inner side wall of the fixing seat by bolts.

5. The COD constant temperature heater for laboratory use according to claim 4, characterized in that: A first Velcro is provided between the first adsorption sponge and the arc-shaped clamping plate, and the first Velcro is used to connect and fix the first adsorption sponge.

6. The COD constant temperature heater for laboratory use according to claim 2, characterized in that: A connecting seat matching the supporting ring is arranged at the bottom of the fixing seat and is fixed by bolts.

7. The COD constant temperature heater for laboratory use according to claim 6, characterized in that: A second Velcro is provided between the support ring and the second adsorption sponge, and the support ring and the second adsorption sponge are connected and fixed by the second Velcro.

8. The COD constant temperature heater for laboratory use according to claim 1, characterized in that: A connecting block is arranged on the outer side of the fixing seat, and a groove matching the connecting block is arranged on the top of the heat insulation box and fixed by bolts.

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