Viscosity detection device

Abstract

The utility model belongs to detection equipment technical field provides a kind of viscosity detection device, comprising: shell;Detection box, vertically set in shell;Detection tube, movably set on mounting hole, detection tube at least part from the top of detection box stretches out mounting hole, and the end of detection tube is provided with sample inlet;At least three light-emitting components, set in the first side of detection box, and with three light transmission holes correspond;At least three receiving components, set in the second side of detection box, and with three light transmission holes correspond;Temperature control component, temperature control component includes temperature sensor and refrigeration sheet, and refrigeration sheet is set in the third side or fourth side of detection box, and temperature sensor is used to control refrigeration sheet to carry out temperature control to detection box;The utility model changes the temperature of detection box by temperature sensor control refrigeration sheet, realizes the temperature control to detection box, and refrigeration sheet is directly set in the third side and fourth side of detection box, so that temperature control is more uniform, improves temperature control rate and detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a viscosity testing device. Background Technology

[0002] Viscosity is a physical quantity that represents the internal friction of a fluid during flow. It is the fluid's ability to resist deformation and is an important indicator for identifying certain finished or semi-finished products. Viscosity varies with different fluids and changes with temperature. In industrial production and scientific research, viscosity testing devices are physical property analysis instruments used to measure the viscosity of fluids.

[0003] For viscosity testing of oil, it is necessary to measure the kinematic viscosity of oil at different temperatures. Traditional viscosity testing equipment has limited control over temperature changes, slow temperature control rate, and low testing efficiency. Utility Model Content

[0004] This invention provides a viscosity testing device to solve the technical problems of slow temperature control rate and low testing efficiency in existing viscosity testing equipment.

[0005] This utility model provides a viscosity detection device, the viscosity detection device comprising: case; The detection box is vertically disposed inside the housing. The detection box has a first side and a second side facing away from each other, as well as a third side and a fourth side facing away from each other. The top of the detection box has a mounting hole that penetrates the detection box in a vertical direction. The side of the detection box has at least three light-transmitting holes that penetrate the detection box. Each light-transmitting hole penetrates from the first side of the detection box to the second side. A detection tube is movably disposed on the mounting hole. The detection tube is used to allow an oil sample to flow in for testing. The detection tube extends at least partially from the top of the detection box into the mounting hole, and an inlet is provided on the extended end of the detection tube. At least three light-emitting components are disposed on the first side of the detection box and correspond to the three light-transmitting holes for emitting photoelectric signals; At least three receiving components are disposed on the second side of the detection box and correspond to the three light-transmitting holes for receiving photoelectric signals; A temperature control component, comprising a temperature sensor and a cooling element, wherein the cooling element is disposed on the third or fourth side of the detection box, and the temperature sensor is used to control the cooling element to control the temperature of the detection box.

[0006] In one embodiment of the present invention, each of the light-emitting components includes a light-emitting optical fiber and a light-emitting diode connected together, and each of the receiving components includes a receiving optical fiber and a phototransistor connected together. The light-emitting diode is located near the first side of the detection box and facing the light-transmitting hole, and the phototransistor is located near the second side of the detection box and facing the light-transmitting hole.

[0007] In one embodiment of the present invention, the viscosity detection device further includes at least two photoelectric sensors for controlling the light-emitting component to emit photoelectric signals or controlling the receiving component to receive photoelectric signals, wherein the two photoelectric sensors respectively connect the three light-emitting components and the three receiving components.

[0008] In one embodiment of the present invention, the viscosity detection device further includes a heat insulation cover, which is vertically disposed inside the housing. The heat insulation cover covers the detection box and encloses the light-emitting component, the receiving component, and the photoelectric sensor.

[0009] In one embodiment of the present invention, a positioning seat is provided on the top of the heat preservation cover, and a positioning hole is provided on the positioning seat. The positioning hole communicates with the mounting hole. The detection tube passes through the positioning hole to enter the mounting hole. A buckle is provided on the positioning seat, and a buckle cover is detachably provided on the positioning seat. A buckle engagement part is provided on the buckle cover, and the buckle engagement part matches the buckle.

[0010] In one embodiment of this utility model, multiple cooling chips are provided, and the multiple cooling chips are sequentially attached to the third or fourth side of the detection box along the vertical direction. The temperature sensor is located on the side of the cooling chip away from the detection box.

[0011] In one embodiment of the present invention, the detection tube is configured as a hollow capillary tube, the capillary tube having a first end and a second end, the first end of the capillary tube being an extended end, the second end of the capillary tube being provided with a sample outlet, and the sample inlet and the sample outlet being connected.

[0012] In one embodiment of the present invention, the viscosity detection device further includes a placement box disposed within the housing, the placement box having multiple receiving cavities for accommodating capillaries of different sizes.

[0013] In one embodiment of the present invention, the viscosity detection device further includes a recovery tank for collecting oil samples, which is disposed below the capillary tube. The oil sample enters the capillary tube from the inlet and flows out of the capillary tube from the outlet, falling into the recovery tank.

[0014] In one embodiment of the present invention, the housing is further provided with a display screen assembly, including a display screen and a base. The base is fixed to the outside of the housing, and the display screen is rotatably connected to the base via a pivot.

[0015] The beneficial effects of this utility model are as follows: The viscosity detection device proposed in this utility model involves inserting a detection tube through a mounting hole. The oil sample enters the detection tube through the inlet, and the light-emitting component emits a photoelectric signal that is transmitted through the light-transmitting hole and received by the receiving component. The oil sample flows through three light-transmitting holes in the detection tube, changing the photoelectric signal. The viscosity of the oil sample is monitored by monitoring the changes in the photoelectric signal. When it is necessary to detect the kinematic viscosity of the oil sample at different temperatures, the temperature sensor controls the cooling element to change the temperature of the detection box, thereby achieving temperature control of the detection box. The cooling element is directly set on the third and fourth sides of the detection box, making the temperature control more uniform and improving the temperature control rate and detection efficiency. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0017] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a viscosity detection device according to an embodiment of the present invention; Figure 2 This is a first-view internal structural schematic diagram of a viscosity detection device according to an embodiment of the present invention. Figure 3 This is a second-view internal structural schematic diagram of a viscosity detection device according to an embodiment of the present invention; Figure 4 This is a third-view internal structural diagram of a viscosity detection device according to an embodiment of the present invention; Figure 5 An assembly diagram of the detection box provided in one embodiment of the present utility model; Figure 6 This is a schematic diagram of the structure of a positioning seat provided in an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of the card cover provided in one embodiment of the present utility model; Figure 8 This is a schematic diagram of the structure of a capillary tube provided in an embodiment of the present invention.

[0018] The attached figures are labeled as follows: 1-Housing; 2-Display screen; 3-Base; 4-Window; 5-Cover plate; 6-Capillary tube; 7-Receiving cavity; 8-Oil filling seat; 9-Clip cover; 10-Oil filling hole; 11-Three-way valve; 12-Placement box; 13-Positioning seat; 14-Microcontroller; 15-Power module; 16-Insulation cover; 17-Recovery tank; 18-Detection box; 19-Light emitting diode; 20-Light emitting fiber; 21-Phototransistor; 22-Receiving fiber; 23-Photoelectric sensor; 24-Light transmission hole; 25-Cooling element; 26-First side; 27-Mounting hole; 28-Positioning hole; 29-Snap fastener; 30-Clip slot; 31-Clip connector; 32-Head; 33-Tail; 34-Tilted bevel; 35-Sample inlet; 36-Sample outlet. Detailed Implementation

[0019] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0021] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0022] Please see Figures 1 to 8 This utility model provides an exemplary viscosity detection device, comprising: Casing 1; The detection box 18 is vertically disposed inside the housing 1. The detection box 18 has a first side 26 and a second side facing away from each other, as well as a third side and a fourth side facing away from each other. The top of the detection box 18 is provided with a mounting hole 27 that penetrates the detection box 18 in a vertical direction. The side of the detection box 18 is provided with at least three light-transmitting holes 24 that penetrate the detection box 18. Each light-transmitting hole 24 penetrates from the first side 26 of the detection box 18 to the second side. The detection tube is movably disposed on the mounting hole 27. The detection tube is used to allow oil samples to flow in for testing. The detection tube extends at least partially from the top of the detection box 18 through the mounting hole 27. An inlet 35 is provided on the extended end of the detection tube. At least three light-emitting components are disposed on the first side 26 of the detection box 18 and correspond to three light-transmitting holes 24 for emitting photoelectric signals; At least three receiving components are disposed on the second side of the detection box 18 and correspond to three light-transmitting holes 24 for receiving photoelectric signals; The temperature control component includes a temperature sensor and a cooling element 25. The cooling element 25 is disposed on the third or fourth side of the detection box 18. The temperature sensor is used to control the cooling element 25 to control the temperature of the detection box 18.

[0023] It should be noted that oil sample testing often requires on-site testing. Traditional viscosity testing equipment is bulky and inconvenient to move. Furthermore, traditional viscosity testing equipment does not have temperature control functions, only heat preservation functions. Oil viscosity testing has certain requirements for the testing environment, and the on-site environment is relatively complex. Traditional viscosity testing equipment is not suitable for on-site working environments, and the test results are easily affected. Therefore, traditional viscosity testing equipment has problems such as large size, inconvenience in carrying and transporting, and slow temperature control rate.

[0024] In the viscosity detection device provided by this utility model, the detection tube is inserted through the mounting hole 27, and the oil sample enters the detection tube from the inlet 35. The light-emitting component emits a photoelectric signal and shines it into the light-transmitting hole 24 until it is received by the receiving component. The oil sample flows through the three light-transmitting holes 24 in the detection tube, changing the photoelectric signal. The viscosity of the oil sample is monitored by monitoring the change of the photoelectric signal. When it is necessary to detect the kinematic viscosity of the oil sample at different temperatures, the temperature sensor controls the cooling plate 25 to change the temperature of the detection box 18, thereby achieving temperature control of the detection box 18. The cooling plate 25 is directly set on the third and fourth sides of the detection box 18, making the temperature control more uniform and improving the temperature control rate and detection efficiency.

[0025] In this embodiment, each light-emitting component includes a connected light-emitting optical fiber 20 and a light-emitting diode 19, and each receiving component includes a connected receiving optical fiber 22 and a phototransistor 21. The light-emitting diode 19 is positioned near the first side 26 of the detection box 18 and facing the light-transmitting hole 24, and the phototransistor 21 is positioned near the second side of the detection box 18 and facing the light-transmitting hole 24. Specifically, the light-emitting diode 19 can emit light to generate a photoelectric signal. The light emitted from the light-emitting diode 19 passes through the light-transmitting hole 24 from the first side 26 of the detection box 18 and is received by the phototransistor 21 on the second side. When the light intensity changes, the electrodes of the phototransistor 21... The resistance of the light source changes, and the magnitude of the collector current can be controlled according to the intensity of the light. There is a vertical gap between the three light-transmitting holes 24. On both sides of each light-transmitting hole 24, namely the first side 26 and the second side of the detection box 18, a light-emitting component and a receiving component are respectively provided. When the oil sample enters from the inlet 35, the oil sample flows in the detection tube and passes through the three light-transmitting holes 24. At this time, the light source emitted by the light-emitting diode 19 will change the light intensity due to the flow of the oil sample. When the light intensity changes, the resistance of the phototransistor 21 changes, and the electrode current also changes, thereby receiving and responding to the photoelectric signal, and thus realizing the viscosity detection of the oil.

[0026] In some embodiments, the viscosity detection device further includes at least two photoelectric sensors 23 for controlling the light-emitting component to emit photoelectric signals or controlling the receiving component to receive photoelectric signals. The two photoelectric sensors 23 connect the three light-emitting components and the three receiving components respectively. Specifically, a microcontroller 14 and a power module 15 are also provided inside the housing 1. The power module 15 is used to provide power to the entire device. When the photoelectric sensor 23 controls the phototransistor 21 to receive and respond to the photoelectric signal, the photoelectric signal is input to the microcontroller 14. The microcontroller 14 processes the photoelectric signal, calculates the kinematic viscosity value of the oil sample, and stores or outputs the detection result.

[0027] In this embodiment, the viscosity detection device also includes a heat insulation cover 16, which is vertically arranged inside the housing 1. The heat insulation cover 16 covers the detection box 18 and encloses the light-emitting component, the receiving component, and the photoelectric sensor 23. Specifically, the heat insulation cover 16 can be made of materials with heat insulation capabilities such as heat insulation board, heat insulation cotton, and heat insulation foam. This is not limited here. By enclosing the detection box 18, the light-emitting component, the receiving component, and the photoelectric sensor 23 with the heat insulation cover 16, the detection box 18 can be kept warm. At the same time, it can also provide a relatively sealed space inside the housing 1, so that the light source emitted by the light-emitting diode 19 can be directly shone from the light-transmitting hole 24 to the phototransistor 21, avoiding light leakage.

[0028] In the above embodiment, a positioning seat 13 is provided on the top of the heat insulation cover 16. The positioning seat 13 has a positioning hole 28, which communicates with the mounting hole 27. The detection tube passes through the positioning hole 28 to enter the mounting hole 27. A fastening member 29 is provided on the positioning seat 13. A cover 9 is detachably provided on the positioning seat 13. A snap-fit ​​part is provided on the cover 9. The snap-fit ​​part matches the fastening member 29. Specifically, multiple fastening members 29 are provided. Each fastening member 29 has a hook-shaped structure. The bent part of the hook-shaped structure forms a slot 30. The snap-fit ​​part includes a snap-fit ​​connector 31 provided at the end of the cover 9. Multiple snap-fit ​​protrusions are provided circumferentially on the snap-fit ​​connector 31. Each snap-fit ​​protrusion has a head 32 and a tail 33. Matching the slot 30 and having the same height, the head 32 of the snap-fit ​​protrusion has an inclined chamfer 34, which facilitates the head 32 of the snap-fit ​​protrusion entering the slot 30. The tail 33 of the snap-fit ​​protrusion has a limiting structure. When the detection tube is installed in the mounting hole 27, the part of the detection tube extending out of the mounting hole 27 is located in the positioning hole 28. The snap-fit ​​connector 31 of the cover 9 contacts the positioning seat 13. Rotating the cover 9 causes the head 32 of the snap-fit ​​protrusion to enter the slot 30 until it is blocked by the limiting structure of the tail 33 of the snap-fit ​​protrusion, thus completing the assembly of the cover 9 and the positioning seat 13. At this time, since the head 32 of the snap-fit ​​protrusion matches the slot 30 and has the same height, the snap-fit ​​protrusion can be snapped into the slot 30, thereby securing the cover 9 onto the positioning seat 13.

[0029] In this embodiment, multiple cooling elements 25 are provided, and the multiple cooling elements 25 are sequentially attached to the third or fourth side of the detection box 18 in a vertical direction. The temperature sensor is located on the side of the cooling element 25 away from the detection box 18. Specifically, the cooling elements 25 are evenly distributed on the third or fourth side of the detection box 18, so that the temperature control of the detection box 18 by the cooling elements 25 is more uniform and the temperature control accuracy is higher. By controlling the temperature of the detection box 18 by the cooling elements 25 through the temperature sensor, the temperature control rate of the detection box 18 can be improved, a constant measurement temperature can be quickly reached, and the detection efficiency can be improved.

[0030] In some embodiments, the detection tube is configured as a hollow capillary tube 6, which has a first end and a second end. The first end of the capillary tube 6 is an extended end, and the second end of the capillary tube 6 is provided with a sample outlet 36. The sample inlet 35 and the sample outlet 36 are connected. Specifically, the end face of the second end of the capillary tube 6 is an inclined end face, and the sample outlet 36 is opened on the inclined end face. The oil sample enters the capillary tube 6 from the sample inlet 35 and flows to the sample outlet 36 under the action of gravity. The inclined end face and the sample outlet 36 enable the oil sample to flow out faster.

[0031] Furthermore, the viscosity testing device also includes a placement box 12, which is disposed inside the housing 1. The placement box 12 is provided with multiple receiving cavities 7 for accommodating capillary tubes 6 of different sizes. Specifically, during the viscosity testing process, it is necessary to replace the capillary tubes 6 with different diameters for testing. By placing the capillary tubes 6 of different diameters in the receiving cavities 7, it is easy to take them out and replace them for testing. The housing 1 is provided with a window 4, which is convenient to take out the capillary tubes 6 from the top of the housing 1. The window 4 is also provided with a cover plate 5. The cover plate 5 can be connected to the housing 1 by flipping or sliding to open or close the window 4. Closing the window 4 with the cover plate 5 can seal the placement box 12 and prevent the capillary tubes 6 from escaping from the receiving cavities 7 of the placement box 12 during movement or transportation.

[0032] In this embodiment, the cap 9 is provided with a three-way valve 11 and an oil filling seat 8. A clearance port is provided on the housing 1. The three-way valve 11, oil filling seat 8, and cap 9 extend from the clearance port and are located outside the housing 1. The positioning seat 13 extends at least partially from the clearance port. Both the oil filling seat 8 and the cap 9 are provided with oil filling holes 10, which communicate with the three-way valve 11 and the positioning hole 28. During testing, an oil sample is injected through the oil filling hole 10 of the oil filling seat 8. The sample passes sequentially through the three-way valve 11, the oil filling hole 10 of the cap 9, and the positioning hole 28, and finally enters the capillary tube 6 through the sample inlet 35. When the capillary tube 6 needs to be replaced, simply rotate the cap 9 so that the snap-fit ​​part of the cap 9 contacts and assembles with the snap fastener 29. The cap 9, the three-way valve 11, and the oil filling seat 8 can then be disassembled, and the capillary tube 6 can be removed and replaced through the positioning hole 28 of the positioning seat 13. This improves the efficiency of capillary tube 6 disassembly and assembly, thereby improving the detection efficiency.

[0033] In some embodiments, the viscosity testing device also includes a recovery tank 17 for collecting oil samples, which is located below the capillary tube 6. The oil sample enters the capillary tube 6 from the inlet 35 and flows out of the capillary tube 6 from the outlet 36, falling into the recovery tank 17. The oil sample is collected through the recovery tank 17 and can be reused or repeatedly tested.

[0034] In this embodiment, a display screen assembly is also provided on the housing 1, including a display screen 2 and a base 3. The base 3 is fixed to the outside of the housing 1, and the display screen 2 is rotatably connected to the base 3 via a rotating shaft. Specifically, the display screen 2 can rotate on the housing 1 to adapt to operating platforms of different heights. The detection results processed and calculated by the microcontroller 14 can be output and displayed on the display screen 2. Operators can also input operation commands through the display screen 2 to adjust the temperature or light.

[0035] In summary, in the viscosity detection device provided by this utility model, by passing the detection tube through the mounting hole 27, the oil sample enters the detection tube from the inlet 35 of the detection tube. The light-emitting component emits a photoelectric signal and shines it into the light-transmitting hole 24 until it is received by the receiving component. The oil sample flows through the three light-transmitting holes 24 in the detection tube, changing the photoelectric signal. The viscosity of the oil sample is monitored by monitoring the change of the photoelectric signal. When it is necessary to detect the kinematic viscosity of the oil sample at different temperatures, the temperature sensor controls the cooling plate 25 to change the temperature of the detection box 18, thereby achieving temperature control of the detection box 18. The cooling plate 25 is directly set on the third and fourth sides of the detection box 18, making the temperature control more uniform and improving the temperature control rate and detection efficiency.

[0036] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A viscosity detection device, characterized in that, include: case; The detection box is vertically disposed inside the housing. The detection box has a first side and a second side facing away from each other, as well as a third side and a fourth side facing away from each other. The top of the detection box has a mounting hole that penetrates the detection box in a vertical direction. The side of the detection box has at least three light-transmitting holes that penetrate the detection box. Each light-transmitting hole penetrates from the first side of the detection box to the second side. A detection tube is movably disposed on the mounting hole. The detection tube is used to allow an oil sample to flow in for testing. The detection tube extends at least partially from the top of the detection box into the mounting hole, and an inlet is provided on the extended end of the detection tube. At least three light-emitting components are disposed on the first side of the detection box and correspond to the three light-transmitting holes for emitting photoelectric signals; At least three receiving components are disposed on the second side of the detection box and correspond to the three light-transmitting holes for receiving photoelectric signals; A temperature control component, comprising a temperature sensor and a cooling element, wherein the cooling element is disposed on the third or fourth side of the detection box, and the temperature sensor is used to control the cooling element to control the temperature of the detection box.

2. The viscosity detection device according to claim 1, characterized in that, Each of the light-emitting components includes a light-emitting optical fiber and a light-emitting diode connected together, and each of the receiving components includes a receiving optical fiber and a phototransistor connected together. The light-emitting diode is located near the first side of the detection box and faces the light-transmitting hole, and the phototransistor is located near the second side of the detection box and faces the light-transmitting hole.

3. The viscosity detection device according to claim 2, characterized in that, It also includes at least two photoelectric sensors for controlling the light-emitting components to emit photoelectric signals or controlling the receiving components to receive photoelectric signals, wherein the two photoelectric sensors respectively connect the three light-emitting components and the three receiving components.

4. The viscosity detection device according to claim 3, characterized in that, It also includes a heat insulation cover, which is vertically installed inside the housing. The heat insulation cover covers the detection box and encloses the light-emitting component, the receiving component, and the photoelectric sensor.

5. The viscosity detection device according to claim 4, characterized in that, The top of the heat insulation cover is provided with a positioning seat, and the positioning seat has a positioning hole that communicates with the mounting hole. The detection tube passes through the positioning hole to enter the mounting hole. The positioning seat is provided with a fastener, and the positioning seat is detachably provided with a cover. The cover is provided with a snap-fit ​​part that matches the fastener.

6. The viscosity detection device according to claim 1, characterized in that, The cooling element is provided in multiple ways, and the multiple cooling elements are sequentially attached to the third or fourth side of the detection box in a vertical direction. The temperature sensor is located on the side of the cooling element away from the detection box.

7. The viscosity detection device according to claim 1, characterized in that, The detection tube is configured as a hollow capillary tube, which has a first end and a second end. The first end of the capillary tube is an extended end, and the second end of the capillary tube is provided with a sample outlet. The sample inlet and the sample outlet are connected.

8. The viscosity detection device according to claim 7, characterized in that, It also includes a placement box disposed within the housing, the placement box having multiple receiving cavities for accommodating capillaries of different sizes.

9. The viscosity detection device according to claim 7, characterized in that, It also includes a recovery tank for collecting oil samples, which is located below the capillary tube. The oil sample enters the capillary tube from the inlet and flows out of the capillary tube from the outlet, falling into the recovery tank.

10. The viscosity detection device according to claim 1, characterized in that, The housing is also provided with a display screen assembly, including a display screen and a base. The base is fixed to the outside of the housing, and the display screen is rotatably connected to the base via a pivot.

Images