Thermostatic bath for viscometer

Abstract

The thermostatic bath for the viscometer comprises a base, a thermostatic box is arranged above the base, a dovetail sliding block is fixedly installed on the base, a dovetail sliding groove is formed in the lower portion of the thermostatic box, the dovetail sliding groove is in sliding fit with the dovetail sliding block, a heat preservation inner container is installed on the thermostatic box in an embedded mode, and the heat preservation inner container is connected with the dovetail sliding block. A connecting block is fixedly installed at the bottom of the heat preservation inner container, a threaded hole is formed in the connecting block, a threaded connecting column is installed in the threaded hole in a threaded mode, a liquid storage cup is fixedly installed at the upper end of the threaded connecting column, and an upper cover is fixedly installed at the position, close to the upper edge, of the outer wall of the liquid storage cup. A heating medium or a refrigerant with the appropriate temperature is injected into the heat preservation inner container through the injection port, after a period of time, the liquid storage cup can complete heat exchange with the refrigerant and the heating medium, the temperature of liquid in the liquid storage cup is kept at the appropriate temperature, and compared with an existing device, the mode of injecting the refrigerant or the heating medium can create any temperature detection environment.

Description

Technical Field

[0001] The utility model relates to a constant temperature bath, in particular to a constant temperature bath for a viscometer. Background Art

[0002] A rotational viscometer is used to measure the viscous resistance and dynamic viscosity of liquids. When using a rotational viscometer to measure the viscosity of different liquids, it is often necessary to control the sample temperature within a specific range. This can help eliminate the influence of temperature and improve measurement accuracy. A constant temperature device is required to control the liquid at a specified temperature.

[0003] For example, a thermostatic bath for a viscometer disclosed in a Chinese patent with the announcement number CN219849696U relates to the field of thermostatic baths and includes a thermostatic box, a test cup and a rotational viscometer. The thermostatic box is provided with a thermostatic bath on its outer wall, a rotating ring is rotatably installed inside the thermostatic bath, a carrying plate is fixedly connected to the inner wall of the thermostatic bath, the test cup is arranged on the top surface of the carrying plate, a heating tube is arranged inside the thermostatic box, a bottom plate is arranged on the bottom surface of the thermostatic box, the rotational viscometer is arranged on the top surface of the bottom plate, a stirring assembly for stirring water inside the thermostatic bath is arranged on the top surface of the rotating ring, the stirring assembly includes a stirring rod and a scraper, the stirring rod is fixedly installed on the top surface of the rotating ring, and the scraper is elastically installed in the inner cavity of the stirring rod; the utility model can keep the test environment temperature of the test cup constant to a certain precise value as much as possible through the cooperation between the above structures, effectively reduce the error existing due to the change of the ambient temperature when the liquid to be tested is tested, and improve the accuracy of the test to a certain extent;

[0004] Some problems were found when using the above-mentioned existing constant temperature bath for viscometer. First, the heating tube is used to heat the water inside the insulation box, which can only maintain the range of room temperature to 100 degrees, and cannot be adjusted to the experimental environment temperature of the liquid below room temperature or above 100 degrees. The limitation is large. Secondly, after the clean water is used for a long time, a large number of bacteria and impurities will breed inside the insulation box, which needs to be regularly changed and cleaned, and it is difficult to remove the insulation box for cleaning. Utility Model Content

[0005] The utility model aims to provide a constant temperature bath for a viscometer to solve the existing problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a constant temperature bath for a viscometer, comprising a base, a constant temperature box is arranged above the base, a dovetail slider is fixedly installed on the base, a dovetail groove is provided below the constant temperature box, the dovetail groove and the dovetail slider are slidably matched, a thermal insulation liner is embedded and installed on the constant temperature box, a connecting block is fixedly installed on the bottom of the thermal insulation liner, a threaded hole is provided on the connecting block, a threaded connecting column is threadedly installed in the threaded hole, a liquid storage cup is fixedly installed on the upper end of the threaded connecting column, and an upper cover is fixedly installed on the outer wall of the liquid storage cup and near the upper edge.

[0007] Preferably, a hydraulic lifting rod is fixedly mounted on the base, and a viscometer is fixedly mounted on the upper end of the hydraulic lifting rod.

[0008] Preferably, a limiting groove is provided on one side of the thermostatic box, a limiting pin is slidably installed in the limiting groove, and a limiting hole is provided on one side of the dovetail slider, and the limiting hole and the limiting pin cooperate with each other.

[0009] Preferably, a spring pad is fixedly mounted on the limit latch, a return spring is sleeved on the limit latch, and a pull ring is fixedly mounted on one end of the limit latch.

[0010] Preferably, a heat-conducting fin is fixedly mounted on the outer wall of the liquid storage cup.

[0011] Preferably, a handle is fixedly mounted on the upper cover, a sealing gasket is fixedly mounted on the lower side of the upper cover, a filling port is arranged on the upper side of the upper cover, and a sealing plug is mounted on the inner thread of the filling port.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. Add heat medium or refrigerant of appropriate temperature to the thermal insulation tank through the filling port. After a period of time, the liquid storage cup will complete heat exchange with the refrigerant or heat medium to keep the liquid temperature of the liquid storage cup at an appropriate temperature. Compared with the existing device, the method of adding refrigerant or heat medium can create any detection temperature environment.

[0014] 2. Pulling the pull ring can drive the limit pin to move out of the limit hole, thereby releasing the restriction on the constant temperature box. The constant temperature box can be removed by pulling the constant temperature box, and then the upper cover is rotated to drive the liquid storage cup to rotate, so that the liquid storage cup can be rotated out of the insulation liner, and the constant temperature box and the liquid storage cup are separated, which is convenient for dumping the substances stored in the insulation liner and the liquid storage cup, and at the same time, it is convenient to clean the inner wall of the insulation liner and the liquid storage cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the structure of the thermostatic box of the utility model;

[0019] Figure 5 This is a schematic diagram of the liquid storage cup and upper cover structure of the utility model.

[0020] In the figure: 1. base; 101. hydraulic lifting rod; 102. viscometer; 103. dovetail slider; 104. limit hole; 2. constant temperature box; 201. dovetail slide; 202. insulation liner; 203. connecting block; 204. threaded hole; 3. limit groove; 301. limit pin; 302. spring pad; 303. return spring; 304. pull ring; 4. liquid storage cup; 401. threaded connecting column; 402. thermal fin; 5. upper cover; 501. handle; 502. sealing gasket; 503. filling port; 504. sealing plug. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 The utility model provides a technical solution: a constant temperature bath for a viscometer, comprising a base 1, a constant temperature box 2 is arranged above the base 1, a dovetail slider 103 is fixedly installed on the base 1, a dovetail slide groove 201 is provided below the constant temperature box 2, the dovetail slide groove 201 and the dovetail slider 103 are slidably matched, a heat preservation liner 202 is embedded and installed on the constant temperature box 2, a connecting block 203 is fixedly installed on the bottom of the heat preservation liner 202, a threaded hole 204 is provided on the connecting block 203, a threaded connecting column 401 is threadedly installed in the threaded hole 204, a liquid storage cup 4 is fixedly installed on the upper end of the threaded connecting column 401, and an upper cover 5 is fixedly installed on the outer wall of the liquid storage cup 4 and near the upper edge.

[0023] In this embodiment, by pouring a certain amount of heat medium or coolant into the heat preservation liner 202, the liquid storage cup 4 is threadedly installed in the heat preservation liner 202 through the threaded connecting column 401, so that when the liquid storage cup 4 is placed in the heat preservation liner 202, the heat will be transferred to the liquid storage cup 4, so that the liquid temperature of the liquid storage cup 4 is maintained at the temperature of the heat medium or coolant, creating a suitable detection temperature, and the thermostatic box 2 is slidably matched with the dovetail slide 201 and the dovetail slider 103, so that the thermostatic box 2 is stuck under the viscometer 102. After the detection is completed, it can be directly The thermostatic box 2 is restricted by the contact, and the thermostatic box 2 is directly removed forward. The rotating upper cover 5 can drive the liquid storage cup 4 to rotate, and the rotation of the liquid storage cup 4 can drive the threaded connecting column 401 to rotate, so that the threaded connecting column 401 can be screwed out from the inside of the threaded hole 204, and the restriction on the liquid storage cup 4 is released. At this time, the liquid storage cup 4 can be taken out separately from the inside of the thermal insulation liner 202. After the thermostatic box 2 is separated from the liquid storage cup 4, it is convenient to pour out the heat medium or cold medium in the thermal insulation liner 202, and it is also convenient to clean the inner wall of the thermal insulation liner 202 and the liquid storage cup 4.

[0024] Among them, in order to achieve the purpose of fixing the constant temperature box 2, the present device adopts the following technical scheme: a hydraulic lifting rod 101 is fixedly installed on the base 1, a viscometer 102 is fixedly installed on the upper end of the hydraulic lifting rod 101, a limiting groove 3 is provided on one side of the constant temperature box 2, a limiting pin 301 is slidably installed in the limiting groove 3, a limiting hole 104 is provided on one side of a dovetail slider 103, the limiting hole 104 cooperates with the limiting pin 301, a spring pad 302 is fixedly installed on the limiting pin 301, a return spring 303 is sleeved on the limiting pin 301, and a pull ring 304 is fixedly installed on one end of the limiting pin 301.

[0025] By starting the hydraulic lifting rod 101, the viscometer 102 can be driven to move up and down, so that the detection head of the viscometer 102 can be moved out of the liquid storage cup 4 to avoid interference between the liquid storage cup 4 and the detection head when the constant temperature box 2 is removed. The return spring 303 can provide a certain thrust for the spring pad 302. The spring pad 302 can be driven by the thrust to drive the limit pin 301 to insert into the limit hole 104, so as to fix the constant temperature box 2 on the base 1, and the pull ring 304 can drive the limit pin 301 to move out of the limit hole 104.

[0026] Among them, in order to achieve the purpose of sealing the upper end of the thermal insulation liner 202, the present device adopts the following technical solutions: a heat-conducting fin 402 is fixedly installed on the outer wall of the liquid storage cup 4, a handle 501 is fixedly installed on the upper cover 5, a sealing gasket 502 is fixedly installed under the upper cover 5, a filling port 503 is arranged on the upper cover 5, and a sealing plug 504 is installed on the inner thread of the filling port 503.

[0027] The heat-conducting fins 402 can increase the contact surface between the liquid storage cup 4 and the refrigerant or heat medium, thereby quickly achieving heat exchange. The sealing gasket 502 can seal the gap between the upper cover 5 and the constant temperature box 2, and seal the upper end of the thermal insulation liner 202 to prevent heat loss. The handle 501 is convenient for moving the upper cover 5. The sealing plug 504 can seal the filling port 503, and the filling port 503 is used to add heat medium or refrigerant to the inside of the thermal insulation liner 202.

[0028] The working principle and use process of the utility model are as follows: when using, the device can be placed in a suitable position, the sealing plug 504 can be unscrewed to open the filling port 503, and the heat medium or refrigerant with suitable temperature can be added to the heat preservation inner tank 202 through the filling port 503, and the sealing plug 504 can be screwed on again to add the test liquid to the liquid storage cup 4. After a certain period of time, the liquid storage cup 4 will complete the heat exchange with the refrigerant and the heat medium, and the base 1 can be started to detect the viscosity of the liquid. After the detection is completed, the hydraulic lifting rod 101 is started to drive the viscometer 102 to move up, so that the viscometer 102 The detection head moves out of the liquid storage cup 4. At this time, pulling the pull ring 304 can drive the limit pin 301 to move out of the limit hole 104, thereby releasing the restriction on the constant temperature box 2. The constant temperature box 2 can be removed by pulling the constant temperature box 2. Then, the upper cover 5 is rotated to drive the liquid storage cup 4 to rotate, and the liquid storage cup 4 can be rotated out of the insulation liner 202, and the constant temperature box 2 and the liquid storage cup 4 are separated, which is convenient for dumping the heat medium or refrigerant and liquid in the insulation liner 202 and the liquid storage cup 4, and at the same time, it is convenient to clean the inner wall of the insulation liner 202 and the liquid storage cup 4.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A constant temperature bath for a viscometer, comprising a base (1), characterized in that: A thermostatic box (2) is arranged above the base (1); a dovetail slider (103) is fixedly mounted on the base (1); a dovetail slide groove (201) is provided below the thermostatic box (2); the dovetail slide groove (201) and the dovetail slider (103) are slidably matched; a heat preservation liner (202) is embedded and mounted on the thermostatic box (2); a connecting block (203) is fixedly mounted on the bottom of the heat preservation liner (202); a threaded hole (204) is provided on the connecting block (203); a threaded connecting column (401) is threadedly mounted inside the threaded hole (204); a liquid storage cup (4) is fixedly mounted on the upper end of the threaded connecting column (401); an upper cover (5) is fixedly mounted on the outer wall of the liquid storage cup (4) and close to the upper edge thereof.

2. A constant temperature bath for a viscometer according to claim 1, characterized in that: A hydraulic lifting rod (101) is fixedly mounted on the base (1), and a viscometer (102) is fixedly mounted on the upper end of the hydraulic lifting rod (101).

3. A constant temperature bath for a viscometer according to claim 1, characterized in that: A limiting groove (3) is provided on one side of the thermostatic box (2), a limiting pin (301) is slidably installed in the limiting groove (3), and a limiting hole (104) is provided on one side of the dovetail slider (103), the limiting hole (104) and the limiting pin (301) cooperate with each other.

4. A constant temperature bath for a viscometer according to claim 3, characterized in that: A spring pad (302) is fixedly mounted on the limit pin (301), a return spring (303) is sleeved on the limit pin (301), and a pull ring (304) is fixedly mounted on one end of the limit pin (301).

5. A constant temperature bath for a viscometer according to claim 1, characterized in that: A heat-conducting fin (402) is fixedly mounted on the outer wall of the liquid storage cup (4).

6. A constant temperature bath for a viscometer according to claim 1, characterized in that: A handle (501) is fixedly mounted on the upper cover (5), a sealing gasket (502) is fixedly mounted on the lower side of the upper cover (5), a filling port (503) is arranged on the upper side of the upper cover (5), and a sealing plug (504) is mounted on the inner thread of the filling port (503).

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