Limiting protection device for weighing sensor

Abstract

The utility model discloses a limit protection device for a weighing sensor, which comprises a tray, a limit protector, the weighing sensor and a base, and is characterized in that the base is fixedly connected with a second weighing frame, the second weighing frame is connected with the weighing sensor, the weighing sensor is connected with a first weighing frame, and the first weighing frame is connected with the tray; the second weighing frame is slidably connected with a plurality of stand columns, and the stand columns are fixedly connected with limiting protectors. The beneficial effects of the utility model are that the annular limiting protector is larger and more uniform in stress area, can bear larger impact force, and can protect the weighing sensor more comprehensively, so that the accuracy and precision of weighing work can be ensured after the electronic scale is used for a long time, the tray is limited by the optical axis, the tray can be prevented from being separated, the optical axis is convenient to disassemble, and the cost is reduced. And subsequent electronic scale maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of weighing instruments, in particular to a position limiting protection device for a weighing sensor. Background Art

[0002] Weighing sensors are widely used in the field of weighing. Weighing sensors are mainly used to weigh the mass of objects. Weighing sensors mainly convert force signals into electrical signals to detect the size of force signals. Commonly used weighing sensors have various forms and installation methods. Limit protection devices are often used in conjunction with weighing sensors. Weighing sensors and limit protection devices constitute weighing modules and are used in various industrial weighing places. If the limit protection device of the weighing sensor is not well made, it is inevitable that improper use, excessive force, overload, etc. will occur during long-term use, causing damage to the weighing sensor, and then making the weighing sensor read inaccurately, affecting the accuracy and precision of the weighing work, and there are problems. Utility Model Content

[0003] In view of the defects in the prior art, the utility model provides a limit protection device for a weighing sensor to solve the existing problems.

[0004] The utility model is realized through the following technical scheme: a limit protection device for a weighing sensor, comprising a tray, a limit protector, a weighing sensor and a base, characterized in that: the base is fixedly connected to a second weighing frame, the second weighing frame is connected to the weighing sensor, the weighing sensor is connected to a first weighing frame, and the first weighing frame is connected to the tray; the second weighing frame is slidably connected to a plurality of columns, and the limit protector is fixedly connected to the columns.

[0005] Preferably, the bottom of the base is fixedly connected to a plurality of legs, the side wall of the base is threadedly connected to a plurality of bolts, one end of the bolts is fixedly connected to the optical axis; the optical axis is slidably connected to a through hole provided in the tray, and the tray is slidably connected to the base.

[0006] Preferably, one end of the column is fixedly connected to a connecting rod, the connecting rod is fixedly connected to a threaded tube, and the threaded tube is threadedly connected to a screw; the screw is fixedly connected to an inner ring of a bearing, an outer ring of a bearing is fixedly connected to the bottom of a second weighing frame, and one end of the screw is fixedly connected to a handwheel.

[0007] Preferably, the limit protector is located between the first weighing frame and the second weighing frame.

[0008] Preferably, the through hole of the tray has a width that is the same as the diameter of the optical axis, and a length that is greater than the diameter of the optical axis.

[0009] The beneficial effects of the utility model are embodied in: the force-bearing area of ​​the circular ring-shaped limit protector is larger and more uniform, it can withstand greater impact force, and the protection of the weighing sensor is more comprehensive, so that the accuracy and precision of the weighing work can be guaranteed when the electronic scale is used for a long time. The tray is limited by the optical axis to prevent the tray from detaching, and the optical axis is easy to disassemble, which is convenient for subsequent maintenance of the electronic scale. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the limit protector of the utility model;

[0013] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 4 For this utility model Figure 3 Sectional view at AA;

[0015] Figure 5 This is a left-side structural schematic diagram of the utility model;

[0016] Figure 6 For this utility model Figure 5 Cross-section view at the middle BB.

[0017] In the attached drawings, 1. tray, 2. optical axis, 3. base, 4. support foot, 5. limit protector, 6. connecting rod, 7. threaded tube, 8. column, 9. weighing sensor, 10. first weighing frame, 11. second weighing frame, 12. bolt, 13. bearing, 14. screw, 15. handwheel. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0020] For ease of description, spatial relative terms such as "upper," "lower," "left," and "right" may be used herein to describe the relationship of one element or feature shown in a figure relative to another element or feature. It should be understood that the spatial terms are intended to include different orientations of the device in use or operation in addition to the orientation shown in the figures. For example, if the device in the figure is inverted, elements described as being "below" other elements or features will be positioned "above" the other elements or features. Thus, the exemplary term "below" may include both upper and lower orientations.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation of the present invention is described in detail below in conjunction with specific embodiments: Figure 1-Figure 6 The utility model shown is realized by the following technical scheme: a limit protection device for a weighing sensor, comprising a tray 1, a limit protector 5, a weighing sensor 9 and a base 3, characterized in that: the base 3 is fixedly connected to a second weighing frame 11, the second weighing frame 11 is connected to the weighing sensor 9, the weighing sensor 9 is connected to a first weighing frame 10, and the first weighing frame 10 is connected to the tray 1; the second weighing frame 11 is slidably connected to a plurality of columns 8, and the limit protector 5 is fixedly connected to the columns 8.

[0023] The bottom of the base 3 is fixedly connected to a plurality of legs 4, and the side wall of the base 3 is threadedly connected to a plurality of bolts 12, one end of the bolts 12 is fixedly connected to the optical axis 2; the optical axis 2 is slidably connected to the through hole opened in the tray 1, and the tray 1 is slidably connected to the base 3.

[0024] One end of the column 8 is fixedly connected to the connecting rod 6, the connecting rod 6 is fixedly connected to the threaded tube 7, and the threaded tube 7 is threadedly connected to the screw 14; the screw 14 is fixedly connected to the inner ring of the bearing 13, the outer ring of the bearing 13 is fixedly connected to the bottom of the second weighing frame 11, and one end of the screw 14 is fixedly connected to the handwheel 15.

[0025] The limit protector 5 is located between the first weighing frame 10 and the second weighing frame 11 .

[0026] The through hole of the tray 1 has the same width as the diameter of the optical axis 2 , and a length greater than the diameter of the optical axis 2 .

[0027] The working principle of the utility model is: by rotating the hand wheel 15, the screw rod 14 is driven to rotate, thereby driving the threaded tube 7 and the limit protector 5 to rise and fall, and adjusting the position of the limit protector 5. The position of the limit protector 5 can be adjusted according to the daily use of the electronic scale. The limit protector 5 is a circular ring with a larger protection range and can withstand a larger impact force. When the tray 1 is subjected to an impact force, the limit protector 5 supports the first weighing frame 10 to prevent the weighing sensor 9 from being damaged by the impact; the tray 1 can be pressed down and moved during normal weighing. When lifted up, the tray 1 is stuck by the optical axis 2, and the tray 1 is lifted together with the base 3. The optical axis 2 and the bolt 12 can be pulled out for subsequent maintenance.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A position limiting protection device for a weighing sensor, comprising a tray (1), a position limiting protector (5), a weighing sensor (9) and a base (3), characterized in that: The base (3) is fixedly connected to a second weighing frame (11), the second weighing frame (11) is connected to a weighing sensor (9), the weighing sensor (9) is connected to the first weighing frame (10), and the first weighing frame (10) is connected to the tray (1); the second weighing frame (11) is slidably connected to a plurality of columns (8), and the columns (8) are fixedly connected to a limit protector (5).

2. A position limiting protection device for a weighing sensor according to claim 1, characterized in that: The bottom of the base (3) is fixedly connected to a plurality of legs (4); a plurality of bolts (12) are threadedly connected to the side wall of the base (3); one end of the bolt (12) is fixedly connected to the optical axis (2); the optical axis (2) is slidably connected to a through hole provided in the tray (1); and the tray (1) is slidably connected to the base (3).

3. A position limiting protection device for a weighing sensor according to claim 1, characterized in that: One end of the column (8) is fixedly connected to a connecting rod (6), the connecting rod (6) is fixedly connected to a threaded tube (7), and the threaded tube (7) is threadedly connected to a screw rod (14); the screw rod (14) is fixedly connected to an inner ring of a bearing (13), an outer ring of the bearing (13) is fixedly connected to the bottom of the second weighing frame (11), and one end of the screw rod (14) is fixedly connected to a hand wheel (15).

4. A position limiting protection device for a weighing sensor according to claim 1, characterized in that: The position limit protector (5) is located between the first weighing frame (10) and the second weighing frame (11).

5. The position limiting protection device for a weighing sensor according to claim 2, characterized in that: The through hole of the tray (1) has a width that is the same as the diameter of the optical axis (2), and a length that is greater than the diameter of the optical axis (2).

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