CN215865579U

CN215865579U - Weighing sensor transfinites protection architecture

Info

Publication number: CN215865579U
Application number: CN202122072429.XU
Authority: CN
Inventors: 王琼
Original assignee: Nanjing Chiyuan System Engineering Co ltd
Current assignee: Nanjing Chiyuan System Engineering Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-02-18
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses an overrun protection structure of a weighing sensor, which relates to the technical field of mechanical equipment related protection and comprises a weighing scale, wherein the weighing scale comprises a weighing plate and a bearing bottom plate, a display screen is embedded in the top of the weighing plate, a guide assembly and a limiting assembly are arranged between the weighing plate and the bearing bottom plate, the guide assembly comprises a return plate fixedly connected to the bottom of the weighing plate, the top of the bearing bottom plate is fixedly connected with a return sleeve plate, and the return plate is sleeved with the return sleeve plate. The limit measurement through sleeve, connecting rod, reset spring, connecting plate, contact point one and the contact point in the spacing subassembly is to the device of limit protection, closes the switch in order to reach effectual protection sensor when overloading to the sensor immediately, avoids the sensor to take place overload damage, prolongs the life of sensor, improves the availability factor of weighing scale, greatly reduced the wasting of resources phenomenon's that the sensor caused after damaging the emergence.

Description

Weighing sensor transfinites protection architecture

Technical Field

The utility model relates to the technical field of mechanical equipment related protection, in particular to a weighing sensor overrun protection structure.

Background

A load cell is essentially a device that converts a mass signal into a measurable electrical signal output. The sensor is used in consideration of the actual working environment of the sensor, which is important for correctly selecting the weighing sensor, and the sensor is related to whether the sensor can work normally, the safety and the service life of the sensor, and even the reliability and the safety of the whole weighing apparatus. On the basis of basic concepts and evaluation methods of main technical indexes of the weighing sensor, the new national standard and the old national standard have qualitative differences. Mainly comprises S-shaped, cantilever-shaped, spoke-shaped, plate-ring-shaped, diaphragm-box-shaped, bridge-shaped, column-cylinder-shaped and other types

The existing weighing sensor mostly adopts a resistance strain type sensor when in use, the elastic element strain generates the number of measurement, the resistance strain type sensor is usually very sensitive to external force, and the resistance strain type weighing sensor often has a limit value of weighing, can not weigh articles without limit, and the phenomenon of overload damage can occur when exceeding the weighing limit, so that the weighing sensor is required to be protected by an overrun protection structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an overrun protection structure of a weighing sensor, which aims to solve the problem that the existing weighing sensor in the background art is easy to damage due to overload phenomenon during use.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a weighing sensor transfinites protection architecture, includes the weighing scale, the weighing scale includes weighing plate and bearing bottom plate, the display screen has been inlayed at the top of weighing plate, be equipped with guide assembly and spacing subassembly between weighing plate and the bearing bottom plate.

Preferably, in the above weighing sensor overrun protection structure, the guide assembly includes a clip-shaped plate fixedly connected to the bottom of the weighing plate, the top of the bearing bottom plate is fixedly connected with a clip-shaped sleeve plate, and the clip-shaped plate is sleeved with the clip-shaped sleeve plate.

Based on above-mentioned technical characteristics, utilize the guide subassembly to lead the position of reciprocating of weighing plate to prescribe a limit to, guarantee weighing scale when using the use that the subassembly can be normal use, the uneven atress leads to weighing plate to take place to remove when avoiding weighing scale to use of influence weighing scale.

Preferably, in the above-mentioned weighing sensor transfinites protection architecture, spacing subassembly includes the sleeve of fixed connection in the weighing plate bottom, telescopic bottom sliding connection has the connecting rod, reset spring has been cup jointed to the surface of connecting rod, telescopic surface fixed connection has the connecting plate, the bottom of connecting plate is equipped with the plectane, be equipped with protection component between plectane and the connecting plate, the bottom fixedly connected with contact point one of plectane, the top of bearing bottom plate is equipped with sensor switch, sensor switch's top is equipped with contact point two.

Based on above-mentioned technical characteristics, utilize spacing subassembly to carry out spacing protection to resistance strain gauge sensor, avoid sensor overload operation to lead to inside electronic component to damage, guarantee that the sensor can normal operation use, the life of extension sensor.

Preferably, in the above structure for protecting an overrun of a weighing sensor, the first contact point and the second contact point are electrically connected.

Based on the technical characteristics, the switch of the sensor is conveniently closed by utilizing the electric connection between the first contact point and the second contact point, and the switch closing protection can be immediately implemented when the sensor is overloaded.

Preferably, in the above-mentioned weighing sensor transfinites protection architecture, the protection component includes the telescopic link of fixed connection in the connecting plate bottom, buffer spring has been cup jointed to the surface of telescopic link.

Based on above-mentioned technical characteristics, utilize the space that can have the buffering when protection component can ensure contact point one and contact point two contact, avoid producing rigid contact between the two and cause the damage fracture, influence the use of spacing subassembly.

Preferably, in the above-mentioned weighing sensor transfinites protection architecture, the bottom symmetric distribution of bearing bottom plate has a plurality of rubber foot pads.

Based on above-mentioned technical characteristics, utilize the rubber foot pad convenience to place the balance of weighing, increase the frictional force between balance of weighing and the ground, the stability that the guarantee balance of weighing placed.

Compared with the prior art, the utility model has the beneficial effects that:

this weighing sensor transfinites protection architecture, through sleeve, connecting rod, reset spring, connecting plate, contact point one and the device that spacing protection was done to the limit measurement of the two pairs of sensors of contact point in the spacing subassembly, close the switch in order to reach effectual protection sensor when transshipping to the sensor immediately, avoid the sensor to take place overload damage, the life of extension sensor improves the availability factor of weighing scale, greatly reduced the emergence of the wasting of resources phenomenon that causes after the sensor damages.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is an enlarged view of part a of the present invention.

In the figure:

1. a weighing scale; 101. a weighing plate; 102. a load-bearing floor; 103. a display screen; 2. a guide assembly; 201. a plate return; 202. a clip-shaped sheathing board; 3. a rubber foot pad; 4. a limiting component; 401. a sleeve; 402. a connecting rod; 403. a return spring; 404. a connecting plate; 405. a circular plate; 406. a first contact point; 407. a sensor switch; 408. a second contact point; 5. a guard assembly; 501. a telescopic rod; 502. a buffer spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown: the utility model provides a weighing sensor transfinites protection architecture, includes weighing scale 1, and weighing scale 1 includes weighing plate 101 and bearing bottom plate 102, and weighing plate 101 makes things convenient for people to stand when weighing, and bearing bottom plate 102 conveniently places the stability of placing and guarantee weighing scale 1 to the sensor. The display screen 103 is embedded at the top of the weighing plate 101, and the display screen 103 is convenient for converting and displaying electric signals generated by the sensor, so that people can visually observe the weight change of the people.

Please refer to fig. 1 in the drawings of the specification: guide assembly 2 includes fixed connection and returns type board 201 in weighing plate 101 bottom, and the top fixedly connected with of bearing bottom plate 102 returns type lagging 202, returns type lagging 202 and conveniently cup joints type board 201 and place returning, makes things convenient for weighing plate 101 to carry out regular reciprocating, avoids weighing plate 101 atress inequality to lead to the component in spacing subassembly 4 to take place the position change and produce and break.

Please refer to fig. 2 and 3 in the drawings of the specification: the limiting assembly 4 comprises a sleeve 401 fixedly connected to the bottom of the weighing plate 101, and the sleeve 401 is convenient for sleeving the connecting rod 402. The bottom sliding connection of sleeve 401 has connecting rod 402, and connecting rod 402 conveniently slides sleeve 401, and sleeve 401 of being convenient for reciprocates, produces the guide effect to connecting plate 404. Reset spring 403 is sleeved on the outer surface of connecting rod 402, and reset spring 403 conveniently buffers the movement of sleeve 401 and limits the moving position of connecting plate 404, and after weighing scale 1 is used conveniently, sleeve 401 and weighing plate 101 can resume the normal position fast, the use of next time of being convenient for simultaneously. The outer surface of the sleeve 401 is fixedly connected with a connecting plate 404, and the bottom of the circular plate 405 is fixedly connected with a first contact point 406, and the first contact point 406 is convenient for closing the sensor switch 407 when the sensor reaches an overload position. The sensor switch 407 is arranged on the top of the bearing bottom plate 102, and the sensor switch 407 is convenient for closing self protection when the sensor reaches an overload value. The top of the sensor switch 407 is provided with a second contact point 408, and the second contact point 408 is convenient to contact with the first contact point 406 to close the sensor switch 407.

Please refer to fig. 3 in the drawings of the specification: the protection component 5 comprises an expansion link 501 fixedly connected to the bottom of the connecting plate 404, a buffer spring 502 is sleeved on the outer surface of the expansion link 501, the expansion link 501 and the buffer spring 502 can ensure that the first contact point 406 and the second contact point 408 are in flexible contact when the sensor reaches an overload value, and the damage of the limiting component 4 caused by hard collision is avoided.

The working principle is as follows: when the weighing scale 1 is used, firstly, a human body stands on the weighing scale 1, the weighing plate 101 drives the return plate 201 to move, the return plate 201 moves along the inner wall of the return sleeve plate 202, meanwhile, the weighing plate 101 drives the sleeve 401 to move, the sleeve 401 slides on the outer surface of the connecting rod 402, the sleeve 401 starts to press the return spring 403, the return spring 403 is in a compressed state, meanwhile, the sleeve 401 drives the connecting plate 404 to move, the connecting plate 404 drives the telescopic rod 501 to move, the telescopic rod 501 drives the circular plate 405 to move, the circular plate 405 drives the contact point one 406 to move, the contact point one 406 moves to a certain position and is movably contacted with the contact point two 408, then, redundant impact force can cause the telescopic rod 501 to retract and the buffer spring 502 to be pressed by the circular plate 405, the contact point one 406 is electrically connected with the contact point two 408, the sensor switch 407 is closed, the overload protection of the sensor is completed, when the human body leaves the weighing plate 101, under the elastic force of the return spring 403 and the buffer spring 502, the electronic components inside the weighing scale 1 are restored to their original positions, and the next measurement can be continued.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are intended to be illustrative only. The preferred embodiments are not exhaustive and do not limit the utility model to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a weighing sensor transfinites protection architecture, includes the weighing scale, its characterized in that: the weighing scale comprises a weighing plate and a bearing bottom plate, a display screen is embedded at the top of the weighing plate, and a guide assembly and a limiting assembly are arranged between the weighing plate and the bearing bottom plate.

2. The load cell overrun protection arrangement of claim 1, wherein: the guide assembly comprises a clip plate fixedly connected to the bottom of the weighing plate, a clip sleeve plate is fixedly connected to the top of the bearing bottom plate, and the clip plate is sleeved with the clip sleeve plate.

3. The load cell overrun protection arrangement of claim 1, wherein: the limiting assembly comprises a sleeve fixedly connected to the bottom of the weighing plate, the bottom of the sleeve is slidably connected with a connecting rod, a reset spring is sleeved on the outer surface of the connecting rod, the outer surface of the sleeve is fixedly connected with a connecting plate, a circular plate is arranged at the bottom of the connecting plate, a protection assembly is arranged between the circular plate and the connecting plate, a first contact point is fixedly connected to the bottom of the circular plate, a sensor switch is arranged at the top of the bearing bottom plate, and a second contact point is arranged at the top of the sensor switch.

4. The load cell overrun protection arrangement of claim 3, wherein: the first contact point is electrically connected with the second contact point.

5. The load cell overrun protection arrangement of claim 3, wherein: the protection assembly comprises a telescopic rod fixedly connected to the bottom of the connecting plate, and a buffer spring is sleeved on the outer surface of the telescopic rod.

6. The load cell overrun protection arrangement of claim 1, wherein: a plurality of rubber foot pads are symmetrically distributed at the bottom of the bearing bottom plate.