Anti-overloading electronic scale supporting column mechanism

Abstract

The utility model relates to the technical field of electronic scales, in particular to an anti-overload electronic scale support column mechanism, which comprises a base, a weighing platform is mounted at the top end of the base, a protective pad is adhered to the top end of the weighing platform, and a protective sleeve is connected to the edge of the bottom end of the weighing platform and the edge of the top end of the base. A supporting column is fixed to the bottom end of the weighing table. The beneficial effects of the utility model are that the jacking plate jacks the jacking rod upwards to support the weighing platform and an object at the top end of the weighing platform, so that the electronic scale is prevented from being crushed by an overloaded object; the protective pad is arranged at the top end of the weighing platform, and the protective sleeve is arranged at the edge between the weighing platform and the base, so that the weighing platform can be protected, impurities are prevented from entering the space between the weighing platform and the base to influence the lifting of the weighing platform, the weighing of objects is facilitated, and the safe use of the electronic scale is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic scales, in particular to an overload-proof electronic scale support column mechanism. Background Art

[0002] Electronic scales are a type of weighing instrument. A weighing instrument is a tool that uses Hooke's law or the principle of lever balance to measure the mass of an object. According to the structural principle, it can be divided into three categories: mechanical scales, electronic scales, and electromechanical combined scales. When an object is placed on the scale pan, pressure is applied to the sensor, which undergoes elastic deformation, thereby changing the impedance. At the same time, the excitation voltage changes, and a changing analog signal is output. The signal is amplified by the amplifier circuit and output to the analog-to-digital converter. It is converted into a digital signal that is easy to process and output to the CPU for operation control.

[0003] Sometimes people may ignore the weighing range of the electronic scale when weighing items, and put overweight items on a small-range electronic scale. As a result, the weight of the items cannot be weighed and the electronic scale will be damaged to a certain extent.

[0004] For example, the prior art Chinese patent publication number "CN218330214U" provides a support column for a high-precision anti-overload electronic scale, including: a main board, a cross plate and a threaded plate, a telescopic plate is fixedly connected to the bottom of the main board, a contraction plate is movably connected to the bottom of the telescopic plate, a base is fixedly connected to the bottom of the contraction plate, a connecting rod is fixedly connected to the top of the main board, slide rails are provided on both sides of the contraction plate, sliders are slidably installed inside the slide rails, a cross plate is fixedly connected between the sliders, and a spring is fixedly connected to the bottom of the cross plate.

[0005] The device is fixedly connected with a telescopic plate at the bottom of the main board. When the device is in use, the device receives pressure and the device can slide inside the slide rail through the elastic potential energy of the spring with sliders installed on both sides of the horizontal plate. In addition, data is transmitted through the load-bearing plate, and at the same time, the telescopic plate is driven to retract inside the contraction plate, driving the device to reset, making it convenient for the device to carry out the next weighing, thereby improving the use efficiency of the device.

[0006] The existing anti-overload electronic scale support column mechanism, when supporting the bottom end of the weighing platform of the electronic scale, fails to provide anti-overload protection for heavier objects that exceed the weighing range of the electronic scale. At the same time, heavier objects placed on the electronic scale cannot be supported and are easily crushed. Utility Model Content

[0007] The purpose of the utility model is to solve the defect in the prior art that when supporting the bottom end of the weighing platform of the electronic scale, anti-overload protection cannot be provided for heavier objects that exceed the weighing range of the electronic scale, and an anti-overload electronic scale support column mechanism is proposed.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A support column mechanism for an anti-overload electronic scale is designed, comprising a base, a weighing platform is installed on the top of the base, a protective pad is bonded to the top of the weighing platform, a protective cover is connected between the bottom edge of the weighing platform and the top edge of the base, a support column is fixed to the bottom end of the weighing platform, a first guide hole is opened at the top of the base, the support column slides through the first guide hole, a first guide cylinder is fixed to the inner bottom end of the base, a gravity sensor is installed at the inner bottom end of the first guide cylinder, guide grooves are opened on both sides of the first guide cylinder, sliding rods are fixed to the bottom ends of both sides of the support column, a pressure sensor is installed at the bottom end of the guide groove, the bottom end of the support column is connected to a spring, and the bottom end of the spring is connected to a pressing sheet.

[0010] Furthermore, a supporting leg is fixed to the bottom end of the base, a controller is installed in the middle of the bottom end of the base, a mounting frame is fixed to the rear side of the base, a display screen is installed on the top end of the mounting frame, a pushing rod is provided at the bottom end of the weighing platform and offset from the supporting column, a second guide hole is opened at the top end of the base, a second guide cylinder is fixed inside the base, the bottom end of the pushing rod is inserted through the second guide cylinder, a pushing plate is installed at the bottom end of the inner part of the second guide cylinder, and an electric push rod is installed at the bottom end of the pushing plate.

[0011] Furthermore, the base is a rectangular structure with a hollow interior and is placed horizontally, and the weighing platform is a rectangular structure and is placed horizontally.

[0012] Furthermore, the protective pad is a rectangular structure and is made of rubber material, the protective sleeve is a rectangular frame structure and is made of elastic cloth structure, and the support column is vertically arranged.

[0013] Furthermore, the first guide cylinder is a cylindrical structure and is vertically arranged, and its height is less than the internal height of the base, and the guide groove is a long strip structure and is vertically arranged, and its height is less than the height of the first guide cylinder.

[0014] Furthermore, the sliding rod is a rectangular rod structure and is horizontally arranged, with its outer end protruding from the outside of the guide groove. The pressure sensor is located directly below the sliding rod, with its top higher than the top of the pressing plate. The pressing plate is a circular structure and is horizontally pressed on the top of the gravity sensor.

[0015] Furthermore, the push rod is vertically arranged, with a height equal to that of the support column, and slides through the second guide hole.

[0016] Furthermore, the second guide cylinder is located directly below the second guide hole, the second guide cylinder is a cylindrical structure and is vertically arranged, the top of the push plate is flush with the top of the pressure sensor, the push plate is a circular plate structure and is horizontally arranged directly below the push rod, and the electric push rod is vertically arranged and installed at the bottom end of the base.

[0017] The utility model provides an anti-overload electronic scale support column mechanism, which has the following beneficial effects:

[0018] 1. The utility model sets a first guide cylinder inside the base, and the bottom end of the support column presses the gravity sensor through the spring and the pressure plate. Therefore, when the weighing platform weighs the object, the support column presses down the spring and the pressure plate, and weighs the object through the gravity sensor. At the same time, the sliding rod moves downward along the guide groove. When the object to be weighed is heavier and exceeds the weighing range of the electronic scale, the sliding rod presses on the top of the pressure sensor. The pressure sensor transmits a signal to the controller. The controller controls the electric push rod to extend upward, and pushes the pushing rod upward through the pushing plate, so as to support the weighing platform and the objects on the top thereof, and prevent the overloaded objects from crushing the electronic scale.

[0019] 2. The utility model arranges a protective pad on the top of the weighing platform and a protective cover on the edge between the weighing platform and the base, thereby providing protection for the weighing platform and preventing debris from entering between the weighing platform and the base and affecting the lifting of the weighing platform, which is beneficial to weighing items and improving the safe use of electronic scales. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 For this utility model Figure 1 A cross-sectional view of

[0022] Figure 3 For this utility model Figure 2 A magnified image of point A;

[0023] Figure 4 For this utility model Figure 2 Enlarged view of point B.

[0024] In the figure: 1. base; 2. guide groove; 3. first guide cylinder; 4. support column; 5. protective cover; 6. first guide hole; 7. weighing platform; 8. push rod; 9. mounting frame; 10. display screen; 11. electric push rod; 12. support leg; 13. second guide cylinder; 14. controller; 15. sliding rod; 16. spring; 17. pressure sensor; 18. second guide hole; 19. push plate; 20. protective pad; 21. gravity sensor; 22. pressing piece. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , an anti-overload electronic scale support column mechanism shown in the figure includes a base 1, a weighing platform 7 is installed on the top of the base 1, a protective pad 20 is bonded to the top of the weighing platform 7, a protective cover 5 is connected between the bottom edge of the weighing platform 7 and the top edge of the base 1, a support column 4 is fixed to the bottom end of the weighing platform 7, a first guide hole 6 is opened at the top of the base 1, the support column 4 slides through the first guide hole 6, a first guide cylinder 3 is fixed to the inner bottom end of the base 1, a gravity sensor 21 is installed at the inner bottom end of the first guide cylinder 3, guide grooves 2 are opened on both sides of the first guide cylinder 3, sliding rods 15 are fixed to the bottom ends of both sides of the support column 4, a pressure sensor 17 is installed at the bottom end of the guide groove 2, a spring 16 is connected to the bottom end of the support column 4, and a pressing piece 22 is connected to the bottom end of the spring 16.

[0028] When the weighing platform 7 weighs the object, the support column 4 presses down the spring 16 and the pressure plate 22, and weighs the object through the gravity sensor 21. At the same time, the sliding rod 15 moves downward along the guide groove 2. When the object to be weighed is heavy and exceeds the weighing range of the electronic scale, the sliding rod 15 presses on the top of the pressure sensor 17. The pressure sensor 17 transmits a signal to the controller 14. The controller 14 controls the electric push rod 11 to extend upward, and pushes the pushing rod 8 upward through the pushing plate 19, so as to support the weighing platform 7 and the objects on the top thereof, and prevent overloaded objects from crushing the electronic scale.

[0029] A supporting leg 12 is fixed to the bottom end of the base 1, a controller 14 is installed in the middle of the bottom end of the base 1, a mounting frame 9 is fixed to the rear side of the base 1, a display screen 10 is installed on the top end of the mounting frame 9, a pushing rod 8 is provided at the bottom end of the weighing platform 7 and offset from the supporting column 4, a second guide hole 18 is opened at the top end of the base 1, a second guide cylinder 13 is fixed inside the base 1, the bottom end of the pushing rod 8 is inserted through the second guide cylinder 13, a pushing plate 19 is installed at the bottom end of the inner bottom of the second guide cylinder 13, and an electric push rod 11 is installed at the bottom end of the pushing plate 19.

[0030] The base 1 is a rectangular structure with a hollow interior and is placed horizontally. The weighing platform 7 is a rectangular structure and is placed horizontally. The protective pad 20 is a rectangular structure and is made of rubber. The protective cover 5 is a rectangular frame structure and is made of elastic cloth. The support column 4 is set vertically.

[0031] The first guide cylinder 3 is a cylindrical structure and is vertically arranged, and its height is less than the internal height of the base 1 . The guide groove 2 is a long strip structure and is vertically arranged, and its height is less than the height of the first guide cylinder 3 .

[0032] The sliding rod 15 is a rectangular rod structure and is arranged horizontally, with its outer end protruding from the outside of the guide groove 2. The pressure sensor 17 is located directly below the sliding rod 15, and its top is higher than the top of the pressing plate 22. The pressing plate 22 is a circular structure and is horizontally pressed on the top of the gravity sensor 21.

[0033] Example 2

[0034] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , an anti-overload electronic scale support column mechanism shown in the figure includes a base 1, a weighing platform 7 is installed on the top of the base 1, a protective pad 20 is bonded to the top of the weighing platform 7, a protective cover 5 is connected between the bottom edge of the weighing platform 7 and the top edge of the base 1, a support column 4 is fixed to the bottom end of the weighing platform 7, a first guide hole 6 is opened at the top of the base 1, the support column 4 slides through the first guide hole 6, a first guide cylinder 3 is fixed to the inner bottom end of the base 1, a gravity sensor 21 is installed at the inner bottom end of the first guide cylinder 3, guide grooves 2 are opened on both sides of the first guide cylinder 3, sliding rods 15 are fixed to the bottom ends of both sides of the support column 4, a pressure sensor 17 is installed at the bottom end of the guide groove 2, a spring 16 is connected to the bottom end of the support column 4, and a pressing piece 22 is connected to the bottom end of the spring 16.

[0035] When the weighing platform 7 weighs the object, the support column 4 presses down the spring 16 and the pressure plate 22, and weighs the object through the gravity sensor 21. At the same time, the sliding rod 15 moves downward along the guide groove 2. When the object to be weighed is heavy and exceeds the weighing range of the electronic scale, the sliding rod 15 presses on the top of the pressure sensor 17. The pressure sensor 17 transmits a signal to the controller 14. The controller 14 controls the electric push rod 11 to extend upward, and pushes the pushing rod 8 upward through the pushing plate 19, so as to support the weighing platform 7 and the objects on the top thereof, and prevent overloaded objects from crushing the electronic scale.

[0036] A supporting leg 12 is fixed to the bottom end of the base 1, a controller 14 is installed in the middle of the bottom end of the base 1, a mounting frame 9 is fixed to the rear side of the base 1, a display screen 10 is installed on the top end of the mounting frame 9, a pushing rod 8 is provided at the bottom end of the weighing platform 7 and offset from the supporting column 4, a second guide hole 18 is opened at the top end of the base 1, a second guide cylinder 13 is fixed inside the base 1, the bottom end of the pushing rod 8 is inserted through the second guide cylinder 13, a pushing plate 19 is installed at the bottom end of the inner bottom of the second guide cylinder 13, and an electric push rod 11 is installed at the bottom end of the pushing plate 19.

[0037] A protective pad 20 is provided at the top of the weighing platform 7, and a protective cover 5 is provided at the edge between the weighing platform 7 and the base 1, thereby providing protection for the weighing platform 7 and preventing debris from entering between the weighing platform 7 and the base 1 and affecting the lifting of the weighing platform 7, which is beneficial to weighing items and improving the safe use of the electronic scale.

[0038] The push rod 8 is vertically arranged with a height equal to that of the support column 4 , and slides through the second guide hole 18 .

[0039] The second guide cylinder 13 is located directly below the second guide hole 18. The second guide cylinder 13 is a cylindrical structure and is vertically arranged. The top of the push plate 19 is flush with the top of the pressure sensor 17. The push plate 19 is a circular plate structure and is horizontally arranged directly below the push rod 8. The electric push rod 11 is vertically arranged and installed at the bottom end of the base 1.

[0040] Working mode: A first guide cylinder 3 is arranged inside the base 1, and the bottom end of the support column 4 presses the gravity sensor 21 through the spring 16 and the pressing plate 22. Therefore, when the weighing platform 7 weighs the object, the support column 4 presses down the spring 16 and the pressing plate 22, and weighs the object through the gravity sensor 21. At the same time, the sliding rod 15 moves downward along the guide groove 2. When the object to be weighed is heavier and exceeds the weighing range of the electronic scale, the sliding rod 15 presses on the top of the pressure sensor 17. The pressure sensor 17 transmits a signal to the controller 14. The controller 14 controls the electric push rod 11 to extend upward, and pushes the pushing rod 8 upward through the pushing plate 19, so as to support the weighing platform 7 and the objects on its top to prevent overloaded objects from crushing the electronic scale.

[0041] A protective pad 20 is provided at the top of the weighing platform 7, and a protective cover 5 is provided at the edge between the weighing platform 7 and the base 1, thereby providing protection for the weighing platform 7 and preventing debris from entering between the weighing platform 7 and the base 1 and affecting the lifting of the weighing platform 7, which is beneficial to weighing items and improving the safe use of the electronic scale.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An anti-overload electronic scale support column mechanism, comprising a base (1), characterized in that: A weighing platform (7) is installed at the top of the base (1), a protective pad (20) is bonded to the top of the weighing platform (7), a protective sleeve (5) is connected to the bottom edge of the weighing platform (7) and the top edge of the base (1), a support column (4) is fixed to the bottom end of the weighing platform (7), a first guide hole (6) is opened at the top of the base (1), the support column (4) slides through the first guide hole (6), a first guide cylinder (3) is fixed to the inner bottom end of the base (1), a gravity sensor (21) is installed at the inner bottom end of the first guide cylinder (3), guide grooves (2) are opened on both sides of the first guide cylinder (3), sliding rods (15) are fixed to the bottom ends of both sides of the support column (4), a pressure sensor (17) is installed at the bottom end of the guide groove (2), a spring (16) is connected to the bottom end of the support column (4), and a pressing sheet (22) is connected to the bottom end of the spring (16).

2. The anti-overload electronic scale support column mechanism according to claim 1, characterized in that: A supporting leg (12) is fixed to the bottom end of the base (1), a controller (14) is installed in the middle of the bottom end of the base (1), a mounting frame (9) is fixed to the rear side of the base (1), a display screen (10) is installed on the top end of the mounting frame (9), a push rod (8) is arranged at the bottom end of the weighing platform (7) and offset from the supporting column (4), a second guide hole (18) is opened at the top end of the base (1), a second guide cylinder (13) is fixed inside the base (1), the bottom end of the push rod (8) is inserted through the second guide cylinder (13), a push plate (19) is installed at the bottom end of the inside of the second guide cylinder (13), and an electric push rod (11) is installed at the bottom end of the push plate (19).

3. The anti-overload electronic scale support column mechanism according to claim 1, characterized in that: The base (1) is a rectangular structure with a hollow interior and is placed horizontally; the weighing platform (7) is a rectangular structure and is placed horizontally.

4. The anti-overload electronic scale support column mechanism according to claim 1, characterized in that: The protective pad (20) is of a rectangular structure and is made of rubber material; the protective sleeve (5) is of a rectangular frame structure and is made of an elastic cloth structure; and the support column (4) is arranged vertically.

5. The anti-overload electronic scale support column mechanism according to claim 1, characterized in that: The first guide cylinder (3) is a cylindrical structure and is arranged vertically, and its height is less than the internal height of the base (1); the guide groove (2) is a long strip structure and is arranged vertically, and its height is less than the height of the first guide cylinder (3).

6. The anti-overload electronic scale support column mechanism according to claim 1, characterized in that: The sliding rod (15) is a rectangular rod structure and is arranged horizontally, with its outer end protruding from the outside of the guide groove (2). The pressure sensor (17) is located directly below the sliding rod (15), and its top end is higher than the top end of the pressing plate (22). The pressing plate (22) is a circular structure and is horizontally pressed on the top end of the gravity sensor (21).

7. The anti-overload electronic scale support column mechanism according to claim 2, characterized in that: The push rod (8) is vertically arranged, with a height equal to that of the support column (4), and slides through the second guide hole (18).

8. The anti-overload electronic scale support column mechanism according to claim 2, characterized in that: The second guide cylinder (13) is located directly below the second guide hole (18); the second guide cylinder (13) is a cylindrical structure and is vertically arranged; the top of the push plate (19) is flush with the top of the pressure sensor (17); the push plate (19) is a circular plate structure and is horizontally arranged directly below the push rod (8); the electric push rod (11) is vertically arranged and mounted on the bottom end of the base (1).

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