CN211717597U - Weighing sensor transfinites protection architecture - Google Patents

Abstract

The utility model discloses a weighing sensor transfinites protection architecture relates to mechanical protection technical field, specifically including the shell of weighing, the shell lower surface of weighing is equipped with the rubber pad, and the inner diapire of the shell of weighing is equipped with the spring, the upper end fixedly connected with bearing plate of spring, one side fixedly connected with weighing sensor of the upper surface of bearing plate, and weighing sensor's upper end is equipped with the platform of weighing, and the below of the platform of weighing is equipped with the gag lever post, and spacing hole has been seted up to the upper surface of bearing plate, the inner diapire fixedly connected with touch switch in spacing hole. This weighing sensor transfinites protection architecture, through the cooperation setting of gag lever post and spacing hole, the gag lever post triggers touch switch disconnection weighing sensor's power when weighing sensor is close to the load limit to share overload weight by the supporting role of gag lever post, reached the purpose of transfinite protection, through the setting of cardan shaft, the gag lever post can keep upright state when weighing platform unbalance loading, reached the purpose of transfinite protection.

Description

Weighing sensor transfinites protection architecture

Technical Field

The utility model relates to a mechanical protection technical field specifically is a weighing sensor transfinites protection architecture.

Background

Nowadays, weighing sensors are increasingly used. In some scenes needing weight reading, a weighing sensor is often needed to be matched for use, the weighing sensor is divided into 8 types such as a photoelectric type, a hydraulic type, an electromagnetic type, a capacitance type, a magnetic pole deformation type, a vibration type, a gyroscope type, a resistance strain type and the like according to a conversion method, wherein the weighing sensor is widely used in the resistance strain type, the resistance strain type works by utilizing the principle that the resistance of a resistance strain gauge changes along with the deformation of the resistance strain gauge, and the weighing sensor mainly comprises an elastic element, a resistance strain gauge, a measuring circuit and a transmission cable 4. The resistance strain gauge is attached to the elastic element, and when the elastic element is stressed and deformed, the strain gauge on the elastic element is deformed, and the resistance is changed. The measuring circuit measures the resistance change of the strain gauge and converts the resistance change into an electric signal proportional to the magnitude of the external force to output. The mass of the measured object is displayed in a digital form after the electric signal is processed, the weighing range of the resistance strain sensor is dozens of grams to hundreds of tons, the measuring accuracy reaches 1/1000-1/10000, the structure is simple, and the reliability is good. Most electronic weighing apparatus all use this sensor, because electronic weighing system selects the multisensor antithetical couplet more during practical application, and resistance strain formula sensor is very sensitive to external force usually to resistance strain formula weighing sensor has the limit of weighing, surpasss the phenomenon emergence that the limit of weighing will appear overload damage, consequently needs a weighing sensor transfinite protection architecture to protect the sensor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a weighing sensor transfinites protection architecture has solved the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a weighing sensor transfinites protection architecture, includes the shell of weighing, one side fixedly connected with rubber pad of shell lower surface of weighing, one side fixedly connected with limiting plate of shell upper surface of weighing, the interior diapire fixedly connected with spring of shell of weighing, the upper end fixedly connected with bearing plate of spring, one side fixedly connected with weighing sensor of the upper surface of bearing plate, weighing sensor's upper end is equipped with the platform of weighing, one side fixedly connected with universal shaft of the platform lower surface of weighing, the lower extreme of universal shaft is equipped with the gag lever post, spacing hole has been seted up to one side of bearing plate upper surface, the interior diapire fixedly connected with touch switch in spacing hole.

Optionally, a clamping groove is formed in the lower surface of the weighing platform, and the upper end of the weighing sensor is clamped in the clamping groove.

Optionally, the cardan shaft includes fixed head and activity head, activity head sliding connection is in the inside of fixed head, the one end of activity head and the upper end fixed connection of gag lever post.

Optionally, the lower portion of the limiting rod is sleeved inside the limiting hole, the depth of the limiting hole is 1 cm, and the stroke of the weighing sensor is larger than 1 cm.

Optionally, the bearing plate is located inside the weighing shell, and the outer dimension of the bearing plate is larger than the inner dimension of the limiting plate.

Optionally, the spring is a nitrogen spring or a mechanical bearing spring, and the weighing sensor is electrically connected with the touch switch through a wire.

(III) advantageous effects

The utility model provides a weighing sensor transfinites protection architecture possesses following beneficial effect:

1. this weighing sensor transfinites protection architecture, cooperation setting through gag lever post and spacing hole, the gag lever post is along with the altitude variation of weighing platform when using, the lower extreme of gag lever post triggers touch switch and stop motion when weighing sensor is close to the load limit, make touch switch disconnection weighing sensor's power, the pressure of weighing platform is shared by the supporting role of gag lever post, avoid weighing platform to continue to descend oppress weighing sensor, make this weighing sensor transfinites protection architecture possess the effect of transfiniting the protection, setting through the universal shaft, can be under the circumstances of weighing platform unbalance loading in the in-process of using, this gag lever post can slightly rotate certain angle and keep upright state, the purpose of transfiniting the protection has been reached.

2. This weighing sensor transfinites protection architecture, through the setting of spring, can reduce impact load when placing the material when using, also can reduce outside vibrations through the spring, avoids haring weighing sensor, makes this weighing sensor transfinites protection architecture possess absorbing effect, has reached the purpose of protection weighing sensor transfinites.

Drawings

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

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

FIG. 3 is a schematic view of the structure of the universal shaft of the present invention;

fig. 4 is a schematic diagram of the structure of the limiting plate of the present invention.

In the figure: 1. weighing the shell; 2. a rubber pad; 3. a weighing sensor; 4. a weighing platform; 5. a cardan shaft; 6. a limiting rod; 7. a limiting hole; 8. a touch switch; 9. a spring; 10. a bearing plate; 11. a limiting plate; 41. a card slot; 51. a fixed head; 52. a movable head.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 4, the present invention provides a technical solution: a weighing sensor overrun protection structure comprises a weighing shell 1, one side of the lower surface of the weighing shell 1 is fixedly connected with a rubber pad 2, one side of the upper surface of the weighing shell 1 is fixedly connected with a limiting plate 11, the inner bottom wall of the weighing shell 1 is fixedly connected with a spring 9, the spring 9 is a nitrogen spring or a mechanical bearing spring, through the arrangement of the spring 9, impact load can be reduced when materials are placed in use, external vibration can also be reduced through the spring 9, damage to the weighing sensor 3 is avoided, the weighing sensor overrun protection structure has a damping effect, the purpose of protecting the weighing sensor 3 overrun is achieved, the upper end of the spring 9 is fixedly connected with a bearing plate 10, the bearing plate 10 is positioned inside the weighing shell 1, the external size of the bearing plate 10 is larger than the internal size of the limiting plate 11, one side of the upper surface of the bearing plate 10 is fixedly connected with the weighing sensor 3, the upper end of a weighing sensor 3 is provided with a weighing platform 4, the lower surface of the weighing platform 4 is provided with a clamping groove 41, the upper end of the weighing sensor 3 is clamped in the clamping groove 41, one side of the lower surface of the weighing platform 4 is fixedly connected with a universal shaft 5, the lower end of the universal shaft 5 is provided with a limiting rod 6, the universal shaft 5 comprises a fixed head 51 and a movable head 52, the movable head 52 is connected in the fixed head 51 in a sliding manner, one end of the movable head 52 is fixedly connected with the upper end of the limiting rod 6, through the arrangement of the universal shaft 5, under the condition that the weighing platform 4 is in unbalance loading in the using process, the limiting rod 6 can slightly rotate for a certain angle to keep an upright state, the purpose of over-limit protection is achieved, one side of the upper surface of a bearing plate 10 is provided with a limiting hole 7, the lower part of the limiting rod 6 is sleeved in the limiting hole 7, the depth of the limiting hole, this weighing sensor transfinites protection architecture, through the cooperation setting of gag lever post 6 and spacing hole 7, gag lever post 6 is along with the altitude variation of weighing platform 4 when using, the lower extreme of gag lever post 6 triggers touch switch 8 and stop motion when weighing sensor 3 is close to the load limit, make touch switch 8 disconnection weighing sensor 3's power, the pressure of weighing platform 4 is shared by gag lever post 6's supporting role, avoid weighing platform 4 to continue to descend oppression weighing sensor 3, make this weighing sensor transfinites protection architecture have possessed the effect of transfiniting the protection, the interior diapire fixedly connected with touch switch 8 of spacing hole 7, weighing sensor 3 with touch switch 8 passes through wire electric connection.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When the weight sensor is used, the weighing device is placed on a flat and hard horizontal plane, the power supply is switched on for zero setting, the weighing can be carried out after the adjustment is finished, in the weighing process, if the weight of a material is in a weighing range, the material can be normally weighed, if the weight of the material is close to a weighing upper limit, and when the impact load caused by the placement exceeds a load limit, the spring 9 is compressed to convert kinetic energy into potential energy, so that the damage of the weighing sensor 3 caused by exceeding the range is avoided, when the weight of the material is greater than the weighing range, because the depth of the limiting hole 7 is 1 cm, the stroke of the weighing sensor 3 is greater than 1 cm, the height of the limiting rod 6 is reduced along with the height of the weighing platform 4, when the weighing sensor 3 is close to the load limit, the lower end of the limiting rod 6 triggers the touch switch 8 to stop moving, so that the touch switch 8 cuts off the power supply of the weighing, avoid weighing platform 4 to continue to descend oppression weighing sensor 3, avoid weighing sensor 3 to exceed the range and damage, when the material that weighing sensor 3 will weigh far away the overload limit, when gag lever post 6 can't share the load that surpasss, the lower surface of weighing platform 4 contacts with supporting the box when weighing sensor 3 is close the load limit, unnecessary weight this moment is shared by supporting the box, avoid weighing sensor 3 to exceed the load limit and damage, when weighing platform 4 partial overload partially surpasses the limit, slightly rotate certain angle through universal shaft 5 and make gag lever post 6 keep upright state, share the weight of transfiniting by gag lever post 6's supporting role, avoid weighing sensor 3 to exceed the range and damage.

The utility model discloses a theory of operation and beneficial effect: the weighing sensor overrun protection structure is characterized in that the limit rod 6 is arranged in a matching manner with the limit hole 7 through the limit rod 6, the limit rod 6 is changed along with the height of the weighing platform 4 when the weighing sensor 3 is close to a load limit, the lower end of the limit rod 6 triggers the touch switch 8 and stops moving, the touch switch 8 is enabled to cut off the power supply of the weighing sensor 3, the pressure of the weighing platform 4 is shared by the supporting action of the limit rod 6, the weighing platform 4 is prevented from continuously descending to press the weighing sensor 3, the weighing sensor overrun protection structure has overrun protection effect, through the arrangement of the universal shaft 5, under the condition that the weighing platform 4 is unbalanced in the use process, the limit rod 6 can slightly rotate by a certain angle to keep an upright state, the purpose of overrun protection is achieved, through the arrangement of the spring 9, impact load can be reduced when materials are placed in use, can also reduce outside vibrations through spring 9, avoid haring weighing sensor 3, make this weighing sensor transfinite protection architecture possess the absorbing effect, reach the purpose that protection weighing sensor 3 transfinites.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a weighing sensor transfinites protection architecture, includes weighing shell (1), its characterized in that: the utility model discloses a weighing machine, including weighing shell (1), one side fixedly connected with rubber pad (2) of weighing shell (1) lower surface, one side fixedly connected with limiting plate (11) of weighing shell (1) upper surface, inner diapire fixedly connected with spring (9) of weighing shell (1), upper end fixedly connected with bearing plate (10) of spring (9), one side fixedly connected with weighing sensor (3) of the upper surface of bearing plate (10), the upper end of weighing sensor (3) is equipped with platform (4) of weighing, one side fixedly connected with cardan shaft (5) of platform (4) lower surface of weighing, the lower extreme of cardan shaft (5) is equipped with gag lever post (6), spacing hole (7) have been seted up to one side of bearing plate (10) upper surface, the inner diapire fixedly connected with touching switch (8) of spacing hole (7).

2. The load cell overrun protection arrangement of claim 1, wherein: the lower surface of the weighing platform (4) is provided with a clamping groove (41), and the upper end of the weighing sensor (3) is clamped in the clamping groove (41).

3. The load cell overrun protection arrangement of claim 1, wherein: cardan shaft (5) are including fixed head (51) and activity head (52), activity head (52) sliding connection is in the inside of fixed head (51), the one end of activity head (52) and the upper end fixed connection of gag lever post (6).

4. The load cell overrun protection arrangement of claim 1, wherein: the lower part of the limiting rod (6) is sleeved inside the limiting hole (7), the depth of the limiting hole (7) is 1 cm, and the stroke of the weighing sensor (3) is larger than 1 cm.

5. The load cell overrun protection arrangement of claim 1, wherein: the bearing plate (10) is located inside the weighing shell (1), and the outer size of the bearing plate (10) is larger than the inner size of the limiting plate (11).

6. The load cell overrun protection arrangement of claim 1, wherein: the spring (9) is a nitrogen spring or a mechanical bearing spring, and the weighing sensor (3) is electrically connected with the touch switch (8) through a lead.

Images