CN217403594U

CN217403594U - A spacing protection device for weighing sensor

Info

Publication number: CN217403594U
Application number: CN202221321621.6U
Authority: CN
Inventors: 王东海; 石红文; 谭长; 刘小五; 彭事昌
Original assignee: Zhuzhou Geman Technology Co ltd
Current assignee: Zhuzhou Geman Technology Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-09
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a spacing protection device for weighing sensor, the on-line screen storage device comprises a base, be equipped with the supporting part on the base, weighing sensor has been installed at the middle part of base, weighing sensor's upper portion is connected with the sensor upper plate, spacing curb plate has set firmly on the sensor upper plate, the below of spacing curb plate seted up with the first spacing hole of supporting part matched with, the supporting part is equipped with mobilizable spacing round pin axle with first spacing hole department, spacing round pin axle is close to first spacing hole department is equipped with the variable diameter section, the variable diameter section includes that the diameter is less than the first diameter section and the diameter in first spacing hole equals the second diameter section in first spacing hole. The utility model discloses a spacing protection device for weighing sensor has convenient to use, simple structure, protects effectual advantage.

Description

A spacing protection device for weighing sensor

Technical Field

The utility model belongs to the measuring instrument field especially relates to a weighing sensor's additional device.

Background

The weighing sensor is widely applied in the weighing field, mainly used for weighing the mass of an object, and mainly used for converting a force signal into an electric signal so as to detect the magnitude of the force signal. The weighing sensor that commonly uses has multiform and mounting means, and limit protection device uses with weighing sensor is supporting often, and weighing sensor constitutes weighing module with limit protection device and is applied to various industry places of weighing. The limit protection device of the weighing sensor is not easy to manufacture, and if a heavy object suddenly falls onto a weighing platform or is accidentally pressed on the weighing platform in the using process, the weighing sensor is easy to damage, so that the condition of inaccurate weighing is caused; meanwhile, if the situation of excessive force pulling upwards occurs, the weighing sensor is also easy to damage.

Therefore, the limiting protection device is particularly important for the weighing sensor, and the limiting protection device with a simple structure and a good protection effect is imperative.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome not enough and the defect that mentions in the above background art, provide a simple structure, protect effectual a spacing protection device for weighing sensor. In order to solve the technical problem, the utility model provides a technical scheme does:

the utility model provides a spacing protection device for weighing sensor, includes the base, be equipped with the supporting part on the base, weighing sensor has been installed at the middle part of base, weighing sensor's upper portion is connected with the sensor upper plate, spacing curb plate has set firmly on the sensor upper plate, the below of spacing curb plate seted up with the first spacing hole of supporting part matched with, the supporting part is equipped with mobilizable spacing round pin axle (step shaft) with first spacing hole department, spacing round pin axle is close to first spacing hole department is equipped with the variable diameter section, the variable diameter section includes that the diameter is less than the first diameter section and the diameter in first spacing hole are equal to the second diameter section in first spacing hole.

In the above-mentioned limit protection device, preferably, the support portion is a second limit hole coaxially disposed with the first limit hole, one of the two ends of the limit pin shaft is provided with a second limit hole in a matching manner, and the limit pin shaft penetrates through the first limit hole and the second limit hole.

In the above-mentioned limit protection device, preferably, two ends of the limit pin are provided with position adjusting components which are matched with the second limit hole to change the position of the limit pin. The position adjustment of the limiting pin shaft can be realized through the position adjusting assembly, so that the weighing sensor is switched between a working mode and a non-working mode.

In the above-mentioned limiting protection device, preferably, the position adjustment assembly includes a spacer sleeve and a pair of baffles, the outer diameter of the spacer sleeve is greater than the aperture of the second limiting hole, the outer diameter of the baffle is greater than the outer diameter of the spacer sleeve, the pair of baffles are respectively arranged at the two ends of the limiting pin shaft, the spacer sleeve is arranged at one end of the limiting pin shaft, and the spacer sleeve is located between the second limiting hole and the baffles. When the spacer bush cover was established on spacing round pin axle and was located between spacing hole of second and the baffle, the position of having fixed spacing round pin axle has been equivalent to, and spacing round pin axle can not remove at will this moment, takes off the spacer bush, and spacing round pin axle can be controlled and moved to the cooperation relation of the variable diameter section of adjustment spacing round pin axle and first spacing hole, with the operating condition and the non-operating condition of adjustment weighing sensor. The length of above-mentioned spacer needs to guarantee that first diameter section and the second diameter of spacing round pin axle respectively with first spacing hole stable cooperation and can not remove at will.

In the above-mentioned limiting protection device, preferably, a pair of limiting side plates is respectively disposed on both sides of the sensor upper plate, and the first limiting holes on the pair of limiting side plates are coaxially disposed. When setting up a plurality of spacing curb plates, also need put many places variable diameter section in spacing round pin axle's relevant position department. The setting of above-mentioned a plurality of spacing curb plates, spacing protection device's stability is better.

In the above-mentioned limiting protection device, preferably, each side of the periphery of the sensor upper plate is provided with a pair of limiting side plates, and the first limiting holes on the pair of limiting side plates are coaxially arranged. The arrangement mode of the plurality of limiting side plates can realize the omnibearing protection of the symmetrical weight sensor, the upper and lower limitation of the conventional use is solved, and the side impact is well protected.

The utility model discloses in, when weighing sensor need be in mode, remove spacing round pin axle, make spacing round pin axle's first diameter section and first spacing hole cooperation, readjust the position of placing of spacer, make spacing round pin axle rigid. At the moment, two ends of the limiting pin shaft are fixed on the second limiting hole, a certain gap exists between the limiting pin shaft and the first limiting hole, external force acting on the sensor upper plate can be transmitted to the weighing sensor, and the weighing sensor can deform within the range of the gap amount to perform weighing work. Moreover, the damage of the weighing sensor beyond the measuring range can be well limited as long as the size of the gap is well controlled. The value of the clearance can be obtained through testing, and the value of the clearance can be the deformation of the weighing sensor when the weighing sensor is used in the range from the natural state to 200 percent of the maximum measurement range.

When the weighing sensor needs to be in a non-working mode, the limiting pin shaft is moved, the second diameter section of the limiting pin shaft is matched with the first limiting hole, and then the placing position of the spacer sleeve (for example, the other side of the placing position in the working mode) is adjusted, so that the limiting pin shaft is fixed. At the moment, the size of the limiting pin shaft is the same as that of the first limiting hole, no gap exists between the limiting pin shaft and the first limiting hole, all external force acting on the upper plate of the sensor directly acts on the limiting pin shaft and the limiting side plate, the weighing sensor cannot be subjected to external force (the weighing sensor cannot be normally used), the state is the non-working state of the weighing sensor, and the protection is more reliable in the non-working state.

The utility model discloses in, only need remove the position of spacing round pin axle, make spacer conversion mounted position again, can make weighing sensor will present the state of two kinds of differences, provide the spacing protection of the state of two kinds of differences.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a spacing protection device for weighing sensor only needs to remove the position of spacing round pin axle, can realize weighing sensor at the switching of working mode and non-working mode, can the weighing sensor play fine guard action at non-working mode, and in addition, this spacing protection device still can restrict weighing sensor in working mode and avoid receiving the too big damage that causes of atress in the twinkling of an eye.

2. The utility model discloses a spacing protection device for weighing sensor has convenient to use, simple structure, protects effectual advantage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of a limit stop protector for a load cell in embodiment 1 (no baffle is shown in the figure).

Fig. 2 is a sectional view (operation mode) of the plane a-a in fig. 1.

Fig. 3 is a sectional view (operation mode) of the plane a-a in fig. 1.

Fig. 4 is a schematic structural view of fig. 3 without a limit pin.

Fig. 5 is a schematic structural view of a limit protection device for a load cell in embodiment 2.

Illustration of the drawings:

1. a base; 2. a limiting pin shaft; 21. a first diameter section; 22. a second diameter section; 3. a limiting side plate; 4. a sensor upper plate; 5. a spacer bush; 6. a baffle plate; 7. a weighing sensor; 9. a first limit hole; 10. a second limiting hole.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.

Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.

Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by an existing method.

Example 1:

as shown in fig. 1-4, the spacing protection device for weighing sensor of this embodiment, including base 1, be equipped with the supporting part on base 1, weighing sensor 7 has been installed at the middle part of base 1, weighing sensor 7's upper portion is connected with sensor upper plate 4, spacing curb plate 3 has set firmly on the sensor upper plate 4, first spacing hole 9 with supporting part matched with is seted up to the below of spacing curb plate 3, the supporting part is equipped with mobilizable spacing round pin axle 2 with first spacing hole 9 department, spacing round pin axle 2 is close to first spacing hole 9 department and is equipped with the variable diameter section, the variable diameter section includes that the diameter is less than first diameter section 21 of first spacing hole 9 and the diameter equals the second diameter section 22 of first spacing hole 9.

In this embodiment, the supporting portion is a second limiting hole 10 coaxially disposed with the first limiting hole 9, the two ends of one limiting pin 2 are both provided with the second limiting hole 10 in a matching manner, and the limiting pin 2 penetrates through the first limiting hole 9 and the second limiting hole 10.

In this embodiment, two ends of the limiting pin 2 are provided with position adjusting components which are matched with the second limiting holes 10 and used for changing the position of the limiting pin 2. Specifically, in this embodiment, the position adjustment assembly includes a spacer 5 and a pair of baffles 6, an outer diameter of the spacer 5 is greater than an aperture of the second limiting hole 10, an outer diameter of the baffles 6 is greater than an outer diameter of the spacer 5, the pair of baffles 6 are respectively disposed at two ends of the limiting pin 2, the spacer 5 is sleeved at one end of the limiting pin 2, and the spacer 5 is located between the second limiting hole 10 and the baffles 6.

In this embodiment, a pair of limiting side plates 3 are respectively disposed on two sides of the sensor upper plate 4, and the first limiting holes 9 on the pair of limiting side plates 3 are coaxially disposed.

The working process and the working principle of the limit protection device for the weighing sensor in the embodiment can be referred to the analysis in the foregoing.

Example 2:

as shown in fig. 5, in the limit protection device for a weighing sensor in this embodiment, on the basis of embodiment 1, a pair of limit side plates 3 is respectively disposed on each side of the periphery of a sensor upper plate 4, first limit holes 9 on the pair of limit side plates 3 are coaxially disposed, and the other structures are similar to embodiment 1.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A limit protection device for a weighing sensor is characterized by comprising a base (1), the base (1) is provided with a supporting part, the middle part of the base (1) is provided with a weighing sensor (7), the upper part of the weighing sensor (7) is connected with a sensor upper plate (4), a limit side plate (3) is fixedly arranged on the sensor upper plate (4), a first limiting hole (9) matched with the supporting part is arranged below the limiting side plate (3), a movable limiting pin shaft (2) is arranged at the position of the supporting part and the first limiting hole (9), the position of the limiting pin shaft (2) close to the first limiting hole (9) is provided with a diameter-variable section, the variable diameter section comprises a first diameter section (21) with a diameter smaller than the first limiting hole (9) and a second diameter section (22) with a diameter equal to the first limiting hole (9).

2. The limiting protection device according to claim 1, wherein the supporting portion is a second limiting hole (10) coaxially arranged with the first limiting hole (9), the two ends of one limiting pin (2) are respectively provided with the second limiting hole (10) in a matching manner, and the limiting pin (2) penetrates through the first limiting hole (9) and the second limiting hole (10).

3. The limiting protection device according to claim 2, characterized in that two ends of the limiting pin (2) are provided with position adjusting components which are matched with the second limiting holes (10) for changing the position of the limiting pin (2).

4. The limiting protection device according to claim 3, wherein the position adjusting assembly comprises a spacer sleeve (5) and a pair of baffle plates (6), the outer diameter of the spacer sleeve (5) is larger than the aperture of the second limiting hole (10), the outer diameter of the baffle plates (6) is larger than the outer diameter of the spacer sleeve (5), the pair of baffle plates (6) are respectively arranged at two ends of the limiting pin shaft (2), the spacer sleeve (5) is sleeved at one end of the limiting pin shaft (2), and the spacer sleeve (5) is arranged between the second limiting hole (10) and the baffle plates (6).

5. Position limiting protection device according to any one of claims 1 to 4, characterized in that a pair of position limiting side plates (3) are respectively provided on both sides of the sensor upper plate (4), and the first position limiting holes (9) on the pair of position limiting side plates (3) are coaxially provided.

6. Position limiting protection device according to any one of claims 1 to 4, characterized in that a pair of position limiting side plates (3) are respectively arranged on each side of the periphery of the sensor upper plate (4), and the first position limiting holes (9) on the pair of position limiting side plates (3) are coaxially arranged.