Sample loading device for electronic moisture meter

Abstract

The utility model discloses a sample loading device for an electronic moisture tester, which relates to the technical field of testers and comprises a bearing seat, a weighing sensor is mounted in the bearing seat, a bracket is arranged on the weighing sensor, a container for containing a sample to be tested is placed in the bearing seat, and the bearing seat is provided with an opening. The containing container comprises a containing disc placed on the bracket, the containing disc is covered with a shielding cover, the top face of the shielding cover is of a latticed structure, a clamping structure is arranged on the shielding cover, and the shielding cover is fixed to the top face of the containing disc through the clamping structure. According to the utility model, the weight change detected by the weighing sensor can truly reflect the moisture evaporation capacity, and the problem of measurement deviation caused by sample loss of the existing disc-shaped loading device is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tester, concretely to a sample carrier device for electronic moisture tester. BACKGROUND

[0002] In the agriculture, food, medicine, chemical industry and many other industries, accurate measurement of the moisture content of the material is an important prerequisite for ensuring product quality and optimizing production process. Electronic moisture tester is widely used in moisture detection of various samples due to its rapid, convenient and high precision. The core working process of the instrument is to place the sample to be tested on the carrier device, heat the sample through the heating unit, promote the evaporation of water in the sample, and then calculate the moisture content according to the mass difference before and after heating. It can be seen that the structure design of the sample carrier device is of great importance to the accuracy of the test results.

[0003] At present, the sample carrier device used by the electronic moisture tester is generally in the form of a disc. This disc-shaped carrier device has the advantages of convenient sample placement and simple operation when in use, but its structure design has obvious limitations. Specifically, the existing disc-shaped carrier device usually only has the basic function of carrying samples and does not have a special shielding structure. Its edge is usually smooth and arc-shaped or straight, which cannot effectively protect the sample during heating.

[0004] In actual detection process, the internal moisture of the sample to be tested will rapidly vaporize under the action of heating, and the sample itself will also produce strong thermal convection and thermal motion due to the increase of temperature. For samples containing a lot of free water, oil or volatile components, the thermal motion is more intense, which can easily cause some sample particles or droplets to separate from the main body and splash. Since there is no shielding structure, the splashing sample cannot be effectively intercepted and will directly separate from the carrier device and splash into the internal cavity of the electronic moisture tester, the surface of the heating element, the weighing sensor and other key components.

[0005] The splashing of the sample caused by the lack of shielding structure will reduce the actual sample amount involved in the detection, resulting in deviation of the moisture content result calculated based on the mass difference, reducing the accuracy of the detection data and possibly leading to misjudgment of production quality control.

[0006] Therefore, the present application is proposed. CONTENT OF THE UTILITY MODEL

[0007] The utility model aims at providing a sample carrier device for electronic moisture tester to solve the problems in the background art.

[0008] In order to solve the above technical problems, the utility model provides a sample loading device for electronic water content tester, including bearing seat, the weighing sensor is installed in the inside of bearing seat, the bracket is arranged on the weighing sensor, the bearing seat is placed with the container for containing sample for measuring in, the container for containing includes the containing tray on the bracket, the containing tray is equipped with the cover of sheltering, the top surface of sheltering is the grid structure, the card joint structure is provided on the sheltering, the sheltering is fixed on the top surface of containing tray through the card joint structure.

[0009] Further, the side wall of the containing tray is connected with a hand handle, and the outer peripheral wall of the bearing seat is provided with a notch for avoiding the hand handle.

[0010] Further, the end of the hand handle away from the containing tray is connected with a heat insulation sleeve, and the outer surface of the heat insulation sleeve is provided with anti-skid lines.

[0011] Further, the card joint structure includes a support vertically extending upward from the inner bottom wall of the containing tray, a slot is formed in the support, and a plug column corresponding to the support is mounted on the inner wall of the sheltering, the bottom end of the plug column is inserted into the slot when the sheltering is covered on the containing tray.

[0012] Further, a sliding rod is arranged in the plug column and slides along the axial direction of the plug column, a sliding cavity is formed in the plug column, the top end of the sliding rod extends above the sheltering, the bottom end of the sliding rod extends into the sliding cavity and is connected with a trapezoidal block, a pin rod that slides along the radial direction of the sliding cavity is slidably mounted in the sliding cavity, a pin hole is formed in the support for the insertion of the pin rod, the end face of the pin rod abuts against the trapezoidal block when the pin rod is inserted into the pin hole, and the pin rod slides into the sliding cavity to be separated from the pin hole when the trapezoidal block is lifted upward by pulling the sliding rod.

[0013] Further, a pushing spring is sleeved on the sliding rod, the top end of the pushing spring is connected with the inner top wall of the sliding cavity, and the bottom end of the pushing spring is connected with the top face of the trapezoidal block, and the trapezoidal block is driven to move downward under the initial elastic force of the pushing spring.

[0014] Further, a guide block that slides along the radial direction of the sliding cavity is slidably mounted in the sliding cavity, and the guide block is connected with the pin rod.

[0015] Further, a reset spring is connected to one side of the guide block, and the other end of the reset spring is connected with the inner wall of the sliding cavity, and the guide block is driven to slide into the sliding cavity under the initial elastic force of the reset spring.

[0016] Compared with the prior art, the utility model has the advantages that:

[0017] 1. The utility model discloses a cooperation of the containing disc and the shielding cover, combines the grid top surface design and the stable clamping structure, can effectively block the spatter of the sample in the heating process, reduces the sample loss, ensures the weight change of the weighing sensor detection truly reflects the water evaporation amount, solves the measurement deviation problem of the existing disc-shaped object carrier caused by sample loss.

[0018] 2. The utility model discloses the design of the gap of handheld handle and bearing seat is convenient for the taking and placing of containing disc, and the heat -proof cover and antiskid line provide the anti-scald protection and stable grip for the operator, improve the operation safety, simultaneously, the cooperation of the slide bar, the push spring, the reset spring and other components in the clamping structure makes the opening and closing of the shielding cover stable and reliable and flexible and labor-saving, guarantees the shielding effect, and simplifies the sample placement and taking process, improves the detection work efficiency. ACCURACY

[0019] Figure 1 It is the whole structure schematic diagram of the utility model;

[0020] Figure 2 It is the explosion structure schematic diagram of the utility model;

[0021] Figure 3 It is the section structure schematic diagram of containing container in the utility model;

[0022] Figure 4 It is Figure 3 The structure enlarged view of A place in;

[0023] In the drawing: 1, bearing seat; 2, weighing sensor; 3, bracket; 4, containing disc; 5, shielding cover; 6, handheld handle; 7, support column; 8, slot; 9, insertion column; 10, slide bar; 11, slide cavity; 12, trapezoidal block; 13, push spring; 14, pin rod; 15, pin hole; 16, guide block; 17, reset spring. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figures 1-4The utility model provides a technical scheme: a sample loading device for electronic moisture tester, including bearing seat 1, the inside installation of bearing seat 1 has weighing sensor 2, is provided with bracket 3 on weighing sensor 2, bearing seat 1 places the container for containing sample to be measured in, and the container contains the containing dish 4 on the bracket 3, the containing dish 4 is equipped with the shelter cover 5, the top surface of shelter cover 5 is grid structure, is provided with the clamping structure on shelter cover 5, and shelter cover 5 is fixed on the top surface of containing dish 4 through the clamping structure.

[0026] Specifically, bearing seat 1 provides installation base for the whole device, and the internal weighing sensor 2 can sense the weight change of the sample and the container on the bracket 3. The containing dish 4 is used for placing the sample to be measured, and the shelter cover 5 is provided on the containing dish 4. By virtue of the grid structure on the top surface, the water vapor can be allowed to evaporate while the sample splashing is blocked. The shelter cover 5 is fixed on the top surface of the containing dish 4 through the clamping structure, so that the shelter cover 5 will not fall off during the heating process. It is mentioned in the background art that the existing disc-shaped loading device causes the sample to splash due to the lack of a shielding structure, which affects the measurement results. However, the present application effectively solves the problem of sample splashing by providing the shelter cover 5 with a grid structure, reduces the loss of sample, and improves the accuracy of moisture measurement. At the same time, the clamping structure ensures the stability of the connection between the shelter cover 5 and the containing dish 4, and ensures the continuous and reliable shielding effect.

[0027] As a technical optimization scheme of the utility model, the side wall of the containing dish 4 is connected with a hand-held handle 6, and the outer peripheral wall of the bearing seat 1 is provided with a notch for avoiding the hand-held handle 6.

[0028] Specifically, the hand-held handle 6 provides a convenient gripping position for the operator to take and place the containing dish 4, and the notch avoids the collision or interference between the hand-held handle 6 and the bearing seat 1, so that the containing dish 4 can be smoothly placed on the bracket 3 or taken out therefrom. The existing device may not be convenient for taking and placing the containing dish, and the hand-held handle 6 of the present application makes it more convenient and labor-saving for the operator to take and place the containing dish 4. The provision of the notch ensures the smoothness of the taking and placing process, improves the operation efficiency, and reduces the risk of sample spilling or device damage due to improper operation.

[0029] As a technical optimization scheme of the utility model, the end of the hand-held handle 6 away from the containing dish 4 is connected with a heat insulation sleeve, and the outer surface of the heat insulation sleeve is provided with anti-slip lines.

[0030] Specifically, the heat insulation sleeve can block the heat transfer from the heated containing dish 4 to the operator's hand, and the anti-slip lines increase the friction between the hand and the hand-held handle 6, which can prevent the operator from being scalded by the heated containing dish 4, and ensure the operation safety.

[0031] As a technical optimization scheme of the utility model, the clamping structure comprises a support 7 extending vertically upward from the inner bottom wall of the containing disc 4, a slot 8 is formed in the support 7, a plug 9 corresponding to the support 7 is mounted on the inner wall of the shielding cover 5, and the bottom end of the plug 9 is inserted into the slot 8 when the shielding cover 5 is covered on the containing disc 4.

[0032] Specifically, when the shielding cover 5 is covered, the bottom end of the plug 9 is inserted into the slot 8, thereby achieving the preliminary connection and positioning of the two. The clamping structure is simple and reliable, the installation and dismounting of the shielding cover 5 and the containing disc 4 are more convenient and fast, the stability of the shielding cover 5 during the heating process is ensured, the blocking effect on the sample splashing is further strengthened, and the connection is more firm compared with the existing shielding mode without a fixed structure.

[0033] As a technical optimization scheme of the utility model, a sliding rod 10 sliding along the axial direction of the plug 9 is arranged in the plug 9, a sliding cavity 11 is formed in the plug 9, the top end of the sliding rod 10 extends above the shielding cover 5, the bottom end of the sliding rod 10 extends into the sliding cavity 11 and is connected with a trapezoidal block 12, a pin rod 14 sliding along the radial direction of the sliding cavity 11 is slidingly mounted in the sliding cavity 11, a pin hole 15 into which the pin rod 14 is inserted is formed in the support 7, and the end face of the pin rod 14 abuts against the trapezoidal block 12 when the pin rod 14 is inserted into the pin hole 15. When the sliding rod 10 is pulled to drive the trapezoidal block 12 to move upward, the pin rod 14 slides into the sliding cavity 11 to be separated from the pin hole 15.

[0034] Specifically, the pin rod 14 is inserted into the pin hole 15 and abuts against the trapezoidal block 12, thereby achieving stable connection; the trapezoidal block 12 is moved upward by pulling the sliding rod 10, the pin rod 14 is separated from the pin hole 15, and the shielding cover 5 can be opened. The structure makes the connection between the shielding cover 5 and the containing disc 4 more firm and reliable, can effectively resist the impact force generated when the sample is heated, prevents the shielding cover 5 from accidentally falling off, further improves the effect of blocking the sample splashing, and solves the problem that the existing simple clamping may be loose.

[0035] As a technical optimization scheme of the utility model, a push spring 13 is sleeved on the sliding rod 10, the top end of the push spring 13 is connected with the inner top wall of the sliding cavity 11, the bottom end of the push spring 13 is connected with the top surface of the trapezoidal block 12, and the push spring 13 drives the trapezoidal block 12 to move downward under the initial elastic force of the push spring 13.

[0036] Specifically, the elastic force of the push spring 13 ensures that the trapezoidal block 12 continuously extrudes the pin rod 14, the cooperation between the pin rod 14 and the pin hole 15 is more firm, the stability of the clamping structure is further enhanced, the pin rod 14 is prevented from being separated from the pin hole 15 due to vibration and other factors, and the reliable fixation of the shielding cover 5 during the heating process is ensured.

[0037] As a technical optimization scheme of the utility model, a guide block 16 sliding along the radial direction of the sliding cavity 11 is slidingly mounted in the sliding cavity 11, and the guide block 16 is connected with the pin rod 14.

[0038] Specifically, the guide block 16 ensures that the pin rod 14 does not deviate during sliding, so that the pin rod 14 can be accurately inserted into or separated from the pin hole 15, improving the flexibility and reliability of the clamping structure and reducing structural failures caused by mispositioning of the pin rod 14.

[0039] As a technical optimization scheme of the utility model, one side of the guide block 16 is connected with a reset spring 17, the other end of the reset spring 17 is connected with the inner wall of the sliding cavity 11, and the reset spring 17 pulls the guide block 16 to slide to the inside of the sliding cavity 11 under the initial elastic force.

[0040] Specifically, the reset spring 17 enables the pin rod 14 to quickly and reliably retract into the sliding cavity 11 after moving on the trapezoidal block 12, facilitating the operator to easily open the shielding cover 5, improving the convenience of operation, and also avoiding the pin rod 14 from affecting the opening and closing of the shielding cover 5.

[0041] Working principle: the basic bearing and weighing functions of the device are realized by the bearing seat 1, the weighing sensor 2 and the bracket 3. The bearing seat 1 provides a mounting base for the entire device, the weighing sensor 2 installed inside is a weight detection component, and the bracket 3 is arranged on the weighing sensor 2 and used for placing a containing container. When the containing container and the internal sample to be measured are placed on the bracket 3, the weighing sensor 2 can sense the weight change in real time and transmit the weight signal to the control system of the electronic moisture tester, providing initial weight data for subsequent moisture content calculation.

[0042] The containing container, as a structure directly contacting and containing the sample to be measured, is composed of a containing disc 4 and a shielding cover 5, and the two cooperate to solve the sample spattering problem. The containing disc 4 is placed on the bracket 3 and used for containing the sample to be measured; the shielding cover 5 is arranged on the containing disc 4, and the grid-shaped structure on the top surface of the shielding cover 5 can ensure smooth emission of moisture vapor during sample heating and effectively block the spattering of the sample due to heating, avoiding the sample particles or droplets from separating from the containing disc 4. The shielding cover 5 is fixed on the top surface of the containing disc 4 through a clamping structure, ensuring that the shielding cover 5 does not separate from the containing disc 4 due to sample thermal motion or slight vibration of the instrument during heating, and ensuring the stability of the shielding effect.

[0043] The specific working process of the clamping structure is as follows: when the cover is needed to be closed, the inserting post 9 on the inner wall of the cover 5 is aligned with the inserting slot 8 of the bottom wall support 7 of the sample container 4 and is inserted into the inserting slot 8, in the process of inserting the inserting post 9, the slide rod 10 is pushed to move downward under the initial elastic force of the pushing spring 13, the trapezoidal block 12 is pressed to make the pin rod 14 slide radially outward along the slide cavity 11, and finally the pin rod 14 is inserted into the pin hole 15 of the support 7, thereby realizing the stable connection between the inserting post 9 and the support 7, and realizing the reliable fixing between the cover 5 and the sample container 4. When the cover 5 is needed to be opened, the slide rod 10 is pulled upward to move the trapezoidal block 12 upward, at this time, the pressing force of the trapezoidal block 12 on the pin rod 14 disappears, the pin rod 14 slides into the slide cavity 11 under the initial elastic force of the reset spring 17 connected with the guide block 16 and is separated from the pin hole 15, the inserting post 9 can be pulled out of the inserting slot 8, thereby the cover 5 is taken off the sample container 4, and the sample container 4 is convenient to be placed or taken out.

[0044] In addition, the hand-held handle 6 connected to the side wall of the sample container 4 is convenient for an operator to take and place the sample container 4, the notch on the outer peripheral wall of the bearing seat 1 provides a space for the hand-held handle 6 to avoid the interference between the hand-held handle 6 and the bearing seat 1. The heat insulation sleeve at the end of the hand-held handle 6 away from the sample container 4 can prevent the operator from being scalded when taking and placing the sample container 4 after heating, and the anti-skid pattern on the outer surface of the heat insulation sleeve increases the friction between the hand and the hand-held handle 6 and improves the stability during the taking and placing process.

[0045] In the whole working process of the electronic moisture tester, the sample to be measured is first placed in the sample container 4, the cover 5 is closed, and after being fixed by the clamping structure, the sample container 4 is placed on the bracket 3, and the initial total weight is detected by the weighing sensor 2; then the heating unit of the tester heats the sample, in the heating process, the cover 5 effectively blocks the sample from splashing, and the moisture is evaporated through the grid-shaped structure on the top surface of the cover 5; after the heating is completed, the remaining total weight is detected by the weighing sensor 2, the moisture content of the sample is calculated according to the difference between the two weights, and the whole determination process is completed.

[0046] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but rather can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0047] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A sample carrier device for an electronic moisture meter, comprising a carrier seat (1) in which a load cell (2) is installed, a bracket (3) is arranged on the load cell (2), and a containing vessel for containing a sample to be measured is placed in the carrier seat (1), characterized in that: The container includes a container tray (4) placed on the bracket (3), the container tray (4) is provided with a shielding cover (5) on the top, the top of the shielding cover (5) is a grid structure, the shielding cover (5) is provided with a clamping structure, and the shielding cover (5) is fixed to the top of the container tray (4) through the clamping structure. ​ 2. A sample carrier for an electronic moisture meter as claimed in claim 1, characterized in that: The side wall of the container tray (4) is connected with a handle (6), and the outer peripheral wall of the bearing seat (1) is provided with a notch for avoiding the handle (6).

3. A sample carrier for an electronic moisture meter as claimed in claim 2, wherein: The end of the handle (6) away from the container tray (4) is connected with a heat insulation sleeve, and the outer surface of the heat insulation sleeve is provided with anti-skid lines.

4. A sample carrier for an electronic moisture meter as defined in claim 1, wherein: The clamping structure includes a support column (7) vertically extending upward from the inner bottom wall of the container tray (4), the support column (7) is provided with a slot (8) in the inside, and the inner wall of the shielding cover (5) is provided with a plug column (9) corresponding to the support column (7), when the shielding cover (5) is covered on the container tray (4), the bottom end of the plug column (9) is inserted into the slot (8).

5. A sample carrier for use in an electronic moisture meter as defined in claim 4, characterized in that: A sliding rod (10) is arranged in the plug column (9) and slides along the axial direction of the plug column (9), the plug column (9) is provided with a sliding cavity (11) in the inside, the top end of the sliding rod (10) extends above the shielding cover (5), the bottom end of the sliding rod (10) extends into the sliding cavity (11) and is connected with a trapezoidal block (12), the sliding cavity (11) is slidably provided with a pin rod (14) which slides along the radial direction of the sliding cavity (11), the support column (7) is provided with a pin hole (15) for inserting the pin rod (14), when the pin rod (14) is inserted into the pin hole (15), the end face of the pin rod (14) abuts against the trapezoidal block (12), when the sliding rod (10) is pulled to drive the trapezoidal block (12) to move upward, the pin rod (14) slides into the sliding cavity (11) to be separated from the pin hole (15).

6. A sample carrier for an electronic moisture meter as claimed in claim 5, characterised in that: A push spring (13) is arranged on the sliding rod (10), the top end of the push spring (13) is connected with the inner top wall of the sliding cavity (11), the bottom end of the push spring (13) is connected with the top face of the trapezoidal block (12), and the push spring (13) drives the trapezoidal block (12) to move downward under the initial elastic force.

7. A sample carrier for an electronic moisture meter as claimed in claim 6, characterised in that: The sliding cavity (11) is slidably provided with a guide block (16) which slides along the radial direction of the sliding cavity (11), and the guide block (16) is connected with the pin rod (14).

8. A sample carrier for an electronic moisture meter as claimed in claim 7, characterised in that: One side of the guide block (16) is connected with a reset spring (17), the other end of the reset spring (17) is connected with the inner wall of the sliding cavity (11), and the reset spring (17) drives the guide block (16) to slide into the sliding cavity (11) under the initial elastic force.

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