Sample adding device for inspecting electronic balance

Abstract

The utility model discloses a sample adding device for detecting an electronic balance, and relates to the technical field of electronic balance detection. The device structurally comprises a transparent cover body, a flat belt type weight sample injector and a movable carrying table, one end of the transparent cover body is provided with a rectangular channel for the moving platform deck to enter and exit; one side surface and the top surface of the transparent cover body are provided with a row of weight placing channels; and an L-shaped door plate is rotationally mounted on the weight placement channel through a hinge. According to the utility model, the flat belt type weight sample injector used for bearing the weights is installed on the transparent cover body in a drawing manner, and the weights are placed on the electronic balance by drawing the U-shaped handle, so that compared with a method of clamping the weights one by one by using tweezers, the device is more convenient and quicker, and the efficiency of electronic balance inspection work is improved; through the design of the flat belt type weight sample injector, continuous weight loading can be realized, which is particularly important for precise measurement work needing multiple times of sample injection, and the tedious operation of frequently opening and closing a transparent cover body is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of electronic balance detection, in particular to a sample adding device for testing an electronic balance. Background Art

[0002] During the inspection and calibration of electronic balances, ensuring measurement accuracy is crucial. Traditional inspection methods usually involve manually placing or removing weights using tweezers. This method is not only cumbersome and inefficient, but also may introduce external factors such as airflow and dust every time the device is opened and closed, affecting the stability and accuracy of the test environment. In addition, frequent operations also increase the user's workload and may affect the accuracy of the device being tested. There is a need to improve existing technologies and methods to improve the efficiency and accuracy of electronic balance inspections. To this end, this application document provides a sample loading device for inspecting electronic balances. Utility Model Content

[0003] The utility model aims to provide a sample adding device for testing an electronic balance. By combining a transparent cover and a flat belt type weight adder, the device is more convenient and faster than a method of using tweezers to pick up weights one by one, thereby improving the efficiency of electronic balance testing.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model discloses a sample adding device for testing an electronic balance, comprising a transparent cover, a flat belt weight adder and a movable platform; one end of the transparent cover is provided with a rectangular passage for the movable platform to enter and exit; a side surface and a top surface of the transparent cover are provided with a row of weight placement passages; an L-shaped door panel is rotatably mounted on the weight placement passage via a hinge; fixed horizontal plates are arranged between opposite inner walls of the transparent cover on both sides of the weight placement passage, and rectangular wire grooves for mounting the flat belt weight adder are jointly provided on the side surfaces of the fixed horizontal plates facing the weight placement passages and the side walls of the transparent cover.

[0006] As a preferred technical solution of the present utility model, the flat belt weight sampler includes a central support plate with cylindrical surfaces at both ends; a conveyor belt is wound and installed on the central support plate, and both ends of the conveyor belt are installed on the same operating panel; the operating panel is fixed to the side of the transparent cover by screws; a guide strip is fixed on each side of the central support plate; the guide strip is slidably engaged with the rectangular wire channel; and a U-shaped handle is fixed at one end of the two guide strips.

[0007] As a preferred technical solution of the present invention, the movable platform includes a movable base and a lifting platform; the relative height between the movable base and the lifting platform is adjusted by a screw rod with a handle.

[0008] As an optimal technical solution of the present invention, the movable base includes an L-shaped plate body; the horizontal plate portion of the L-shaped plate body is provided with four rectangular through holes; small wheels are installed in the rectangular through holes; two guide cylinders are fixed to the upper surface of the horizontal plate portion of the L-shaped plate body; the vertical plate portion of the L-shaped plate body is provided with a vertical guide hole; a single ear is fixed to the outer side surface of the vertical plate portion of the L-shaped plate body just above the guide hole; the lifting platform includes a rectangular plate body with the same length and width as the horizontal plate of the L-shaped plate body; two guide circular holes that slide with the guide cylinders are provided on the rectangular plate body; an internally threaded slider passing through the guide hole is fixed to one end of the rectangular plate body; the screw rod with a handle passes through the single ear and is threadedly connected to the internally threaded slider.

[0009] As a preferred technical solution of the present invention, the transparent cover is made of acrylic plate or glass.

[0010] The utility model has the following beneficial effects:

[0011] 1. The utility model installs a flat belt weight sampler for carrying weights on a transparent cover by pulling out the U-shaped handle. The weights are placed on the electronic balance by pulling out the U-shaped handle. Compared with the method of using tweezers to pick up weights one by one, it is more convenient and faster, thereby improving the efficiency of electronic balance inspection work.

[0012] 2. The utility model can realize continuous weight loading through the design of the flat belt weight sampler, which is particularly important for precision measurement work that requires multiple sample additions, and avoids the tedious operation of frequently opening and closing the transparent cover.

[0013] 3. The utility model allows the height of the lifting platform to be adjusted by a screw rod with a handle through the design of the movable platform, so that the loading pan of the electronic balance can be close to the bottom of the flat belt weight sampler, adapting to electronic balances of different sizes and shapes, thereby enhancing the applicability of the device.

[0014] 4. The utility model provides a relatively closed operating environment through the use of a transparent cover and a movable platform, which reduces the interference of external factors on the measurement results and helps to improve the accuracy of electronic balance detection.

[0015] 5. The structural design between the mobile base and the lifting platform of the utility model ensures the stability of the entire mobile platform and the smoothness during the adjustment process, thereby ensuring the repeatability and reliability of the measurement process.

[0016] 6. The design of the L-shaped door panel of the utility model ensures convenient placement of weights while also providing good sealing performance, further reducing the impact of the external environment on the measurement results.

[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 The figure is a structural diagram of the sample adding device for testing electronic balance of the present invention.

[0020] Figure 2 for Figure 1 Top view of .

[0021] Figure 3 for Figure 2 Cross-sectional view at AA in the middle.

[0022] Figure 4 This is a structural diagram of a flat belt weight sampler.

[0023] Figure 5 for Figure 4 A partial enlarged view of point A in the middle.

[0024] Figure 6 It is a structural diagram of a transparent cover.

[0025] Figure 7 for Figure 6 A partial enlarged view of point B in the middle.

[0026] Figure 8 Schematic diagram of the structure of the mobile platform.

[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0028] 1-transparent cover, 2-flat belt weight adder, 3-movable platform, 11-rectangular channel, 12-weight placement channel, 13-rectangular wire groove, 14-L-shaped door panel, 15-fixed horizontal plate, 21-center support plate, 22-conveyor belt, 23-operation panel, 24-guide strip, 25-U-shaped handle, 31-movable base, 32-lifting table, 33-handled screw, 311-L-shaped plate, 312-rectangular through hole, 313-small wheel, 314-guide cylinder, 315-guide hole, 316-single ear, 321-rectangular plate, 322-guide circular hole, 323-internal thread slider. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment one:

[0031] See also Figure 1-8 As shown, the present invention is a sample loading device for testing electronic balances. It includes a transparent cover 1, a flat belt weight loading device 2, and a movable platform 3. Multiple weights are placed on the portion of the flat belt weight loading device 2 located within the transparent cover 1. The electronic balance to be tested is placed on the movable platform 3 and pushed into the transparent cover 1. The flat belt weight loading device 2 is then pulled out to load the weights onto the balance. The transparent cover 1 is made of acrylic or glass. This transparent material facilitates external observation and operation.

[0032] One end of the transparent cover 1 defines a rectangular passage 11 for the movable platform 3 to enter and exit. A row of weight placement passages 12 is defined on one side and the top of the transparent cover 1. An L-shaped door panel 14 is hingedly mounted on the weight placement passages 12. To place weights, the L-shaped door panel 14 is flipped upward, and a weight is removed from the weight placement passage 12 using tweezers and placed onto the flat-belt weight dispenser 2. Each time a weight is placed, the flat-belt weight dispenser 2 is pushed into the transparent cover 1 a distance beyond the diameter of the weight being placed. Once the weights are placed, the L-shaped door panel 14 is flipped downward to close the weight placement passage 12.

[0033] Among them, the flat belt weight sampler 2 includes a central support plate 21 with cylindrical surfaces at both ends. A conveyor belt 22 is wound and installed on the central support plate 21, and the two ends of the conveyor belt 22 are installed on the same operating panel 23. The operating panel 23 is fixed to the side of the transparent cover 1 by screws. A guide strip 24 is fixed on both sides of the central support plate 21. A fixed horizontal plate 15 is provided between the relative inner walls of the transparent cover 1 on both sides of the weight placement channel 12, and the fixed horizontal plate 15 is provided with a rectangular wire groove 13 for installing the flat belt weight sampler 2 on the side facing the weight placement channel 12 and the side wall of the transparent cover 1. The guide strip 24 is slidably matched with the rectangular wire groove 13. A U-shaped handle 25 is fixed at one end of the two guide strips 24.

[0034] The operating panel 23 serves as an operating handle for adjusting the relative position of the conveyor belt 22 on the center support plate 21. When the operating panel 23 is fixed to the transparent cover 1, the center support plate 21 can be moved further into the transparent cover 1 by gripping the U-shaped handle 25. As the U-shaped handle 25 is pulled outward, the conveyor belt 22 above the center support plate 21 rotates toward the inside of the transparent cover 1, transporting the weights on it and dropping them onto the electronic balance below. Without opening the transparent cover 1, the weights can be placed on the electronic balance by pulling out the U-shaped handle 25. The increased reading on the electronic balance and the weight of the added weights can be used to evaluate and verify the accuracy of the electronic balance. By pulling out the flat belt weight adder 2 loaded with weights, the electronic balance can be continuously loaded with weights. Compared to the method of using tweezers to pick up weights one by one, the pulling method is quick and convenient, and does not require repeatedly opening and closing the relatively sealed state of the transparent cover 1, which is beneficial for sample loading and testing of the electronic balance.

[0035] The movable platform 3 comprises a movable base 31 and a lifting platform 32. The relative height between the movable base 31 and the lifting platform 32 is adjusted by a screw with a handle 33. The movable platform 3 is composed of two parts. The lower movable base 31 is used to facilitate the movement and adjustment of the electronic balance to be tested and is used to relatively close the rectangular channel 11 on the side of the transparent cover 1. The lifting platform 32 is used to support the electronic balance. The screw with a handle 33 is used to directly adjust the height of the lifting platform 32 to ensure that the load tray of the electronic balance is close to the bottom of the flat belt weight sampler 2.

[0036] The specific movable base 31 includes an L-shaped plate body 311. The horizontal plate portion of the L-shaped plate body 311 is provided with four rectangular through holes 312. A small wheel 313 is installed in the rectangular through hole 312. Two guide cylinders 314 are fixed to the upper surface of the horizontal plate portion of the L-shaped plate body 311. The vertical plate portion of the L-shaped plate body 311 is provided with a vertical guide hole 315. A single ear 316 is fixed to the outer side surface of the vertical plate portion of the L-shaped plate body 311 just above the guide hole 315. The lifting platform 32 includes a rectangular plate body 321 with the same length and width as the horizontal plate of the L-shaped plate body 311. Two guide circular holes 322 that slide with the guide cylinders 314 are provided on the rectangular plate body 321. An internal threaded slider 323 that passes through the guide hole 315 is fixed to one end of the rectangular plate body 321. The screw rod 33 with a handle passes through the single ear 316 and is threadedly connected to the internal threaded slider 323.

[0037] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0038] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A sample adding device for testing an electronic balance, characterized in that: It comprises a transparent cover (1), a flat belt weight sampler (2) and a movable carrier (3); One end of the transparent cover (1) is provided with a rectangular passage (11) for the movable platform (3) to enter and exit; A row of weight placement channels (12) are provided on one side surface and the top surface of the transparent cover (1); an L-shaped door panel (14) is rotatably mounted on the weight placement channel (12) via a hinge; A fixed horizontal plate (15) is provided between the opposite inner walls of the transparent cover (1) on both sides of the weight placement channel (12), and a rectangular wire channel (13) for installing the flat belt weight sampler (2) is provided on the side of the fixed horizontal plate (15) facing the weight placement channel (12) and the side wall of the transparent cover (1).

2. The sample adding device for checking an electronic balance according to claim 1, characterized in that: The flat belt weight sampler (2) comprises a central support plate (21) with cylindrical surfaces at both ends; a conveyor belt (22) is wound and mounted on the central support plate (21), and both ends of the conveyor belt (22) are mounted on the same operating panel (23); the operating panel (23) is fixed to the side of the transparent cover (1) by screws; a guide strip (24) is fixed on both sides of the central support plate (21); the guide strip (24) is slidably engaged with the rectangular wire channel (13); and a U-shaped handle (25) is fixed to one end of each of the two guide strips (24).

3. The sample adding device for checking an electronic balance according to claim 1, characterized in that: The movable platform (3) comprises a movable base (31) and a lifting platform (32); the relative height between the movable base (31) and the lifting platform (32) is adjusted by a screw rod (33) with a handle.

4. The sample adding device for checking an electronic balance according to claim 3, characterized in that: The movable base (31) includes an L-shaped plate (311); a horizontal plate portion of the L-shaped plate (311) is provided with four rectangular through holes (312); a small wheel (313) is installed in the rectangular through hole (312); two guide cylinders (314) are fixed on the upper surface of the horizontal plate portion of the L-shaped plate (311); a vertical guide hole (315) is provided on the vertical plate portion of the L-shaped plate (311); a single lug (316) is fixed on the outer side surface of the vertical plate portion of the L-shaped plate (311) directly above the guide hole (315); The lifting platform (32) includes a rectangular plate (321) having the same length and width as the horizontal plate of the L-shaped plate (311); two guide circular holes (322) are provided on the rectangular plate (321) and are slidably engaged with the guide cylinder (314); an internal threaded slider (323) passing through the guide hole (315) is fixed to one end of the rectangular plate (321); the handle screw (33) passes through the single ear (316) and is threadedly connected to the internal threaded slider (323).

5. The sample adding device for checking an electronic balance according to claim 1, characterized in that: The transparent cover (1) is made of acrylic plate or glass.

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