Tray for electronic balance

Abstract

The utility model discloses a tray for an electronic balance, and relates to the technical field of precision measuring instruments. The electronic balance comprises a scale pan and a base, the scale pan comprises a pan body and a mounting column, the mounting column is vertically mounted on the base, the pan body is fixed at the top of the mounting column, the tray is characterized by comprising an annular flexible bottom plate, the mounting column is sleeved with an inner ring of the annular flexible bottom plate, and the annular flexible bottom plate is fixed on the mounting column. The outer ring diameter of the annular flexible bottom plate is larger than the diameter of the disc body, and the inner ring diameter of the annular flexible bottom plate is smaller than the diameter of the disc body. And the annular flexible bottom plate is used for receiving falling materials, and the annular flexible bottom plate is provided with a breaking joint, so that the annular flexible bottom plate can be directly detached from the interval between the scale body and the base without taking down the scale, and the accuracy of a measurement result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of precision measuring instruments, and more specifically to a tray for an electronic balance. Background Art

[0002] A common precision weighing instrument in chemical drug preparation laboratories is a precision electronic balance, which can weigh milligram-level chemical substances. It is usually equipped with a manual or automatic glass windshield with three doors. This type of balance can weigh powdered or liquid chemical substances, but its size is small. During the weighing process, the operator needs to add and reduce materials to the balance pan in the windshield with one hand to reach the required amount of materials. In this process, it is inevitable that materials will be spilled, which may fall on the pan or in the gap between the pan and the base. After long-term use, some chemical substances are corrosive. If they are not cleaned in time, the electronic balance will be damaged, causing errors in the weighing results. The existing methods are to remove the pan and clean it with a brush, but it is not convenient to clean the residue left by the weighing liquid. In addition, during the repeated placement of the pan, if there is a partial deviation in the placement position, the weighing result will be inaccurate, which will affect the experimental results. Utility Model Content

[0003] In view of this, the utility model aims to provide a tray for a precision electronic balance that can be installed without disassembling the weighing pan, so as to solve the technical problems in the prior art that scattered materials are difficult to clean and the weighing pan needs to be repeatedly taken out and placed during the cleaning process, affecting the weighing structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A tray for an electronic balance, the electronic balance comprising a weighing pan and a base, the weighing pan comprising a pan body and a mounting column, the mounting column being vertically mounted on the base, the pan body being fixed on the top of the mounting column, and characterized in that it comprises: an annular flexible bottom plate, the inner ring of the annular flexible bottom plate being sleeved on the mounting column; the outer ring diameter of the annular flexible bottom plate is larger than the diameter of the pan body, and the inner ring diameter of the annular flexible bottom plate is smaller than the diameter of the pan body.

[0006] The utility model can achieve the beneficial effects that: an annular flexible bottom plate is arranged between the pan body and the base to catch the fallen materials and prevent the materials from falling into the gap between the pan and the base, so as to facilitate cleaning.

[0007] Preferably, the annular flexible bottom plate has a through-break in the radial direction, and the break can be detachably connected.

[0008] Preferably, an anti-convection ring is sleeved on the base corresponding to the outer peripheral side of the mounting column, the annular flexible bottom plate is placed on the inner circle side of the side wall of the anti-convection ring, and the fractures thereof are overlapped and pressed together.

[0009] Preferably, the breaks are connected by easy-to-tear adhesive tape.

[0010] Preferably, the annular flexible bottom plate is provided with an insertion slot arranged along its radial direction on one side corresponding to the break, and an insertion tongue which can be inserted into the insertion slot is fixed on the other side.

[0011] Preferably, the annular flexible bottom plate is inclined from its inner ring side to its outer ring side in a direction away from the disk body.

[0012] Preferably, there is a gap between the inner ring side of the annular flexible bottom plate and the bottom surface of the disk body.

[0013] Preferably, a protective side plate is further provided, and the protective side plate is fixed to the outer ring side of the annular flexible bottom plate.

[0014] Preferably, the length of the protective side plate is the same as the length of the outer ring side of the annular flexible bottom plate.

[0015] Preferably, the annular flexible bottom plate and the protective side plates are both made of absorbent paper or oily paper.

[0016] Through the above technical solutions, it can be known that compared with the prior art, the utility model discloses a tray for an electronic balance, which can catch the fallen materials and prevent the materials from falling into the gap between the scale pan and the base. Moreover, the tray can be directly installed and removed conveniently, without repeatedly taking and placing the scale pan, so as to avoid the deviation of taking and placing the scale pan and affecting the accuracy of the measurement result. The tray of the utility model is made of disposable materials and can be directly discarded after removal, which is convenient for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 The utility model is a schematic structural diagram of an electronic balance tray installed on the electronic balance.

[0019] Figure 2 The utility model is a schematic diagram of an explosion structure in which a tray for an electronic balance is installed on the electronic balance.

[0020] Figure 3 The utility model is a schematic structural diagram of an electronic balance tray in an unused state.

[0021] Figure 4 The utility model is a schematic structural diagram of an electronic balance tray in use.

[0022] Figure 5 The utility model is a schematic structural diagram of an electronic balance tray in an unused state.

[0023] In the figure: 1, weighing pan, 2, base, 3, anti-convection ring, 4, tray, 401, break seam, 41, annular flexible bottom plate, 411, insertion seam, 412, insertion tongue, 42, protective side plate. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] See also Figure 1-Figure 5The utility model discloses a tray for an electronic balance, which includes a weighing pan 1 and a base 2. The weighing pan 1 includes a pan body and a mounting column. The mounting column is vertically mounted on the base 2, and the pan body is fixed on the top of the mounting column. The tray includes: an annular flexible bottom plate 41, and the inner ring of the annular flexible bottom plate 41 is sleeved on the mounting column; the outer ring diameter of the annular flexible bottom plate 41 is larger than the diameter of the weighing pan 1, and the inner ring diameter of the annular flexible bottom plate 41 is smaller than the diameter of the weighing pan 1, so as to prevent materials from falling onto the base 2.

[0028] In a specific embodiment, the annular flexible bottom plate 41 has a through slit 401 in the radial direction, and the slit 401 is detachably connected.

[0029] In a specific embodiment, if Figure 1 As shown, the base 2 is provided with an anti-convection ring 3 on the outer peripheral side of the corresponding mounting column, and the annular flexible bottom plate 41 is placed on the inner ring side of the side wall of the anti-convection ring 3, and the fracture 401 thereof is overlapped and pressed together. Under the restriction of the anti-convection ring 3, the contact parts on both sides of the fracture 401 overlap up and down to form a stable and closed annular flexible bottom plate 41.

[0030] In some other embodiments, when the tray 4 is directly placed on the surface of the base 2 , the seam 401 can be connected by an easily-tearable adhesive tape.

[0031] In some other embodiments, an insertion slot 411 arranged along the radial direction is provided on one side of the annular flexible bottom plate corresponding to the break 401, and an insertion tongue 412 that can be inserted into the insertion slot 411 is fixed on the other side. The break 401 is connected by the insertion tongue 412 and the break 411 to achieve easy installation and removal. In some other embodiments, other easy-to-detach methods can also be used to connect the break 401.

[0032] The annular flexible bottom plate 41 is made of absorbent paper or oily paper. The absorbent paper can also absorb moisture to ensure the stability of humidity in the protective cover of the electronic balance. The oily paper can be used to recycle the drug residues left behind without causing adhesion.

[0033] In a specific embodiment, a protective side plate 42 is further included, and the protective side plate 42 is fixed to the outer ring side of the annular flexible bottom plate 41. During the collection process, the residue can be prevented from sliding off the edge and causing pollution.

[0034] In a specific embodiment, the annular flexible bottom plate 41 is inclined from its inner ring side to the outer ring side in a direction away from the disk body. The material falling onto the annular flexible bottom plate 41 can slide toward the outer ring, preventing it from falling onto the bottom plate again along the inner ring hole, and the material is gathered at the outer ring for easy cleaning.

[0035] Specifically, there is a gap between the inner ring side of the annular flexible bottom plate 41 and the bottom surface of the weighing pan 1. The inclination angle of the annular flexible bottom plate 41 can be determined by the distance between the pan body and the base 2, and can be placed horizontally or tilted at a small angle, so as not to contact the bottom surface of the pan body 1 and not affect the weighing.

[0036] In a specific embodiment, the protective side plate 42 is made of absorbent paper or oily paper.

[0037] The utility model provides a tray for an electronic balance, which can catch fallen materials and prevent them from falling into the gap between the weighing pan 1 and the base 2. The tray 4 is easy to assemble and disassemble, and there is no need to repeatedly take and put the weighing pan 1, so as to avoid the deviation of the taking and putting position of the weighing pan 1 affecting the accuracy of the measurement result. The tray 4 is made of disposable materials and can be directly discarded after removal, which is convenient for cleaning.

[0038] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tray for an electronic balance, the electronic balance comprising a weighing pan (1) and a base (2), the weighing pan (1) comprising a pan body and a mounting column, the mounting column being vertically mounted on the base (2), the pan body being fixed on the top of the mounting column, characterized in that: include: An annular flexible bottom plate (41), wherein the inner ring of the annular flexible bottom plate (41) is sleeved on the mounting column; the outer ring diameter of the annular flexible bottom plate (41) is larger than the diameter of the disk body, and the inner ring diameter of the annular flexible bottom plate (41) is smaller than the diameter of the disk body; the annular flexible bottom plate (41) has a through-break (401) in the radial direction, and the break (401) is detachably connected.

2. The electronic balance tray according to claim 1, characterized in that: An anti-convection ring (3) is sleeved on the base (2) corresponding to the outer peripheral side of the mounting column, and the annular flexible bottom plate (41) is placed on the inner ring side of the side wall of the anti-convection ring (3), and the fracture (401) thereof is overlapped and pressed together.

3. The electronic balance tray according to claim 1, characterized in that: The break (401) is connected by an easily-tearable adhesive tape.

4. The electronic balance tray according to claim 1, characterized in that: The annular flexible bottom plate is provided with an insertion slot (411) arranged along the radial direction thereof on one side corresponding to the break (401), and an insertion tongue (412) which can be inserted into the insertion slot (411) is fixed on the other side.

5. The electronic balance tray according to any one of claims 1 to 4, characterized in that: The annular flexible bottom plate (41) is made of absorbent paper or oily paper.

6. The electronic balance tray according to claim 5, characterized in that: It also includes a protective side plate (42), and the protective side plate (42) is fixed on the outer ring side of the annular flexible bottom plate (41).

7. The electronic balance tray according to claim 6, characterized in that: The annular flexible bottom plate (41) is inclined from its inner ring side to its outer ring side in a direction away from the disk body.

8. The electronic balance tray according to claim 7, characterized in that: There is a gap between the inner ring side of the annular flexible bottom plate (41) and the bottom surface of the disk body.

9. The electronic balance tray according to claim 6, characterized in that: The protective side plate (42) is made of absorbent paper or oily paper.

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