Dustproof structure for balance

Abstract

A dustproof structure for a balance is characterized by comprising a base, the base is provided with a balance body, the base is provided with a dustproof cover, the dustproof cover is provided with an airtight door, the airtight door is provided with a handle, the airtight door is provided with a lock catch, the dustproof cover is internally provided with a retractable door, and the retractable door is provided with a gripper. A fixing ring is arranged on the dustproof cover, the rubber glove is connected to the fixing ring in a sleeved mode, the dustproof cover is arranged above the balance body of the base in a covering mode, the hand stretches into the rubber glove, the telescopic door is pulled out through the hand grab, two closed spaces are formed in the dustproof cover, the balance body is located in the space close to the right side at the moment, and the airtight door is opened through the lock catch and the handle. A to-be-weighed sample is placed in the closed space, close to the left side, in the dust cover through the air-tight door, the air-tight door is closed, the retractable door is retracted through the gripper, the closed space is formed in the dust cover, and when many samples need to be weighed, operation is easy, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of balance protection, in particular to a dustproof structure for a balance. Background Art

[0002] A balance is a weighing instrument. It is formed by a fulcrum (axis) supporting a balance beam at the center of the beam to form two arms. A pan is hung on each arm. An object of known mass is placed in one pan and an object to be measured is placed in the other pan. The deflection of the pointer fixed on the beam when it is not swinging and pointing to the middle scale indicates the mass of the object to be measured. A balance is an equal-arm lever. A balance is a weighing instrument, an instrument for measuring the mass of an object. It is made according to the principle of a lever. There is a small pan at each end of the lever. A weight is placed at one end and an object to be weighed is placed at the other end. A pointer is installed in the center of the lever. When the two ends are balanced, the mass (weight) of the two ends is equal. Modern balances are becoming more and more precise and sensitive, and there are more and more types. We all know that there are ordinary balances, analytical balances, constant analytical balances, micro analytical balances, and semi-micro analytical balances. Balances are easily affected by airflow or dust in the air, so they need to be isolated and protected.

[0003] There is an existing dustproof structure CN217211111U for a balance, comprising a fixed cover, a rotating cover and a motor; the fixed cover and the rotating cover are both semi-cylindrical, the fixed cover and the rotating cover are coaxially rotatably connected, and the fixed cover and the rotating cover are assembled to form a cylindrical weighing object accommodating chamber; the motor is arranged on the fixed cover, and the output shaft of the motor is connected to the rotating cover. The dustproof structure for a balance provided by the utility model controls the consistency of the force of opening or closing the wall plate of the dustproof cover, ensures the sealing of the dustproof cover, and improves the weighing accuracy of the balance; on the other hand, it increases the speed of opening or closing the wall plate of the dustproof cover, and improves the weighing efficiency;

[0004] However, when the existing protective device is in use, if the sample to be weighed is to be replaced, the motor needs to drive the rotating cover to open at a constant speed so as to replace the sample to be weighed. When many samples need to be weighed, the operation is cumbersome and inconvenient to use. In order to solve the above problem, a dustproof structure for a balance is proposed. Utility Model Content

[0005] In view of the above existing technical problems, the utility model provides a dustproof structure for a balance, characterized in that it includes a base, a dust cover, a closed door, a handle, a lock, a telescopic door, a gripper, a fixed ring, and an observation window. The base is provided with a balance body, the base is provided with a dust cover, the dust cover is provided with a closed door, the closed door is provided with a handle, the closed door is provided with a lock, the dust cover is provided with a telescopic door, the telescopic door is provided with a gripper, the dust cover is provided with a fixed ring, and the dust cover is provided with an observation window;

[0006] Further, the balance body is located inside the dust cover, the enclosed door is located on the side of the dust cover, connected to the dust cover through a rotating shaft, and fixed by a lock, the telescopic door is fixedly arranged at the rear end of the inner wall of the dust cover, the telescopic door is a three-stage telescopic structure, and a gripper is fixedly arranged on the telescopic door;

[0007] Furthermore, the observation window is located at the front end of the dust cover, the observation window is made of transparent material, the fixing ring is located below the observation window, the fixing ring extends into the interior of the dust cover, there are two fixing rings, which are arranged in parallel below the observation window.

[0008] Beneficial effects of the utility model:

[0009] The utility model sleeves a rubber glove on a fixing ring, covers the dust cover above the balance body of the base, puts a hand into the rubber glove, and pulls out the telescopic door through a gripper, so that two closed spaces are formed in the dust cover. At this time, the balance body is located in the space on the right side, the sealed door is opened through a lock and a handle, and a sample to be weighed is put into the closed space on the left side of the dust cover through the sealed door, the sealed door is closed, and the telescopic door is retracted through a gripper, so that the dust cover is a closed space, and a plurality of samples to be weighed are placed on the balance body in sequence through the rubber glove, and then they are viewed through a transparent observation window to complete the weighing. When many samples need to be weighed, the operation is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of a dustproof structure for a balance according to the utility model;

[0011] Figure 2 This is a schematic diagram of the interior of a dustproof structure for a balance according to the utility model;

[0012] As shown in the figure: 1 base, 2 balance body, 3 dust cover, 4 airtight door, 5 handle, 6 lock, 7 telescopic door, 8 gripper, 9 fixing ring, 10 observation window. DETAILED DESCRIPTION

[0013] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0014] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0015] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0016] Example 1

[0017] The utility model provides a dustproof structure for a balance, which is characterized by comprising a base 1, a dust cover 3, a closed door 4, a handle 5, a lock 6, a telescopic door 7, a grip 8, a fixing ring 9, and an observation window 10. A balance body 2 is arranged on the base 1, a dust cover 3 is arranged on the base 1, a closed door 4 is arranged on the dust cover 3, a handle 5 is arranged on the closed door 4, a lock 6 is arranged on the closed door 4, a telescopic door 7 is arranged in the dust cover 3, a grip 8 is arranged on the telescopic door 7, a fixing ring 9 is arranged on the dust cover 3, and an observation window 10 is arranged on the dust cover 3;

[0018] Furthermore, the balance body 2 is located inside the dust cover 3, the closed door 4 is located on the side of the dust cover 3, connected to the dust cover 3 through a rotating shaft, and fixed by a lock 6, the telescopic door 7 is fixedly arranged at the rear end of the inner wall of the dust cover 3, the telescopic door 7 is a three-stage telescopic structure, and a gripper 8 is fixedly arranged on the telescopic door 7;

[0019] Furthermore, the observation window 10 is located at the front end of the dust cover 3, and the observation window 10 is made of transparent material. The fixing ring 9 is located below the observation window 10, and the fixing ring 9 extends into the interior of the dust cover 3. There are two fixing rings 9, which are arranged side by side below the observation window 10.

[0020] Example 2

[0021] When in use, put the rubber gloves on the fixing ring 9, cover the dust cover 3 above the balance body 2 of the base 1, put your hand into the rubber gloves, pull out the telescopic door 7 through the grip 8, so that two closed spaces are formed in the dust cover 3. At this time, the balance body 2 is located in the space on the right side, open the closed door 4 through the lock 6 and the handle 5, put the sample to be weighed into the closed space on the left side of the dust cover 3 through the closed door 4, close the closed door 4, and retract the telescopic door 7 through the grip 8, so that the dust cover 3 is a closed space, and put several samples to be weighed on the balance body 2 in turn through the rubber gloves, and then check them through the transparent observation window 10 to complete the weighing.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A dustproof structure for a balance, characterized in that It includes a base, a dust cover, an airtight door, a handle, a lock, a telescopic door, a gripper, a fixing ring and an observation window. The base is provided with a balance body, the base is provided with a dust cover, the dust cover is provided with an airtight door, the airtight door is provided with a handle, the airtight door is provided with a lock, the telescopic door is provided in the dust cover, the telescopic door is provided with a gripper, the dust cover is provided with a fixing ring, and the dust cover is provided with an observation window.

2. A dustproof structure for a balance according to claim 1, characterized in that: The balance body is located inside the dust cover, the enclosed door is located on the side of the dust cover, connected to the dust cover through a rotating shaft, and fixed by a lock, the telescopic door is fixedly arranged at the rear end of the inner wall of the dust cover, the telescopic door is a three-stage telescopic structure, and a gripper is fixedly arranged on the telescopic door.

3. A dustproof structure for a balance according to claim 2, characterized in that: The observation window is located at the front end of the dust cover. The observation window is made of transparent material. The fixing ring is located below the observation window and extends into the interior of the dust cover. There are two fixing rings, which are arranged in parallel below the observation window.

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