CN216283902U

CN216283902U - Weighing sensor protection device

Info

Publication number: CN216283902U
Application number: CN202122863417.9U
Authority: CN
Inventors: 刘素杰; 杨宏远
Original assignee: Joymed Technology (shanghai) Ltd
Current assignee: Joymed Technology (shanghai) Ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-12
Anticipated expiration: 2031-11-22

Abstract

The utility model relates to the technical field of weighing sensors, in particular to a weighing sensor protection device. The weighing device comprises a protective support, wherein a weighing sensor is arranged in the protective support, an upper buffer plate is fixedly arranged at the upper end of the weighing sensor, a weighing disc is arranged on the upper buffer plate and is connected with the protective support through a fixing bolt, a positioning pin is further arranged on the weighing disc, the tail end of the positioning pin is close to an adjustable bolt, the adjustable bolt is arranged on the protective support, and the adjustable bolt can be adjusted up and down, so that the distance between the tail end of the positioning pin and the adjustable bolt can be adjusted. The large impact or the out-of-range of the retransmission sensor caused by the symmetric retransmission sensor during overload is avoided, and therefore protection of the symmetric retransmission sensor is achieved.

Description

Weighing sensor protection device

Technical Field

The utility model relates to the technical field of weighing sensors, in particular to a weighing sensor protection device.

Background

In some weighing processes, when a weighed object is placed, the weighed object directly impacts the weighing tray at a certain speed, or the human body presses the self weight on the weighed object and transmits the self weight to the weighing sensor through the weighing tray. The above operation may cause the load cell to momentarily overshoot its range, causing damage to the cell. If a wide-range sensor is used, although the weighing range of the sensor can be improved, the damage of the sensor caused by the operation can be reduced, the weighing precision can be reduced, the accurate measurement of a weighed object cannot be realized, and the weighing requirement cannot be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects, the utility model provides a weighing sensor protection device which comprises a protection support, wherein a weighing sensor is arranged in the protection support, an upper buffer plate is fixedly arranged at the upper end of the weighing sensor, a weighing disc is arranged on the upper buffer plate and connected with the protection support through a fixing bolt, a positioning pin is further arranged on the weighing disc, the tail end of the positioning pin is close to an adjustable bolt, the adjustable bolt is arranged on the protection support, and the adjustable bolt can be adjusted up and down, so that the distance between the tail end of the positioning pin and the adjustable bolt is adjusted.

In some embodiments, the protective bracket includes at least two side walls and a bottom end, the side walls and the bottom end defining a protective bracket cavity, and the load cell is disposed within the protective bracket cavity.

In some embodiments, a lower buffer plate is fixedly arranged at the lower end of the weighing sensor, and the lower buffer plate is also fixedly connected with the bottom end of the protection bracket.

In some embodiments, the upper baffle plate has a cross-section that is at least one of T-shaped or i-shaped, and the lower baffle plate has a cross-section that is at least one of T-shaped or i-shaped.

In some embodiments, two positioning pins are arranged at one side of the weighing plate, and a fixing bolt is arranged at the other side of the weighing plate.

In some embodiments, the two positioning pins respectively penetrate through the weighing plate and extend downwards to the upper ends of the two adjustable bolts, and are respectively fixedly connected with the weighing plate.

In some embodiments, the fixing bolt penetrates through the weighing disc and the bottom end of the protective bracket in sequence to fixedly connect the weighing disc and the protective bracket.

In some embodiments, the two adjustable bolts extend upwards through the bottom end of the protective bracket and are respectively coaxial with the two positioning pins for adjusting the distance between the end surface of the positioning pin and the end surface of the adjustable bolt.

Advantageous effects

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

according to the utility model, the fixing bolt is arranged on one side of the weighing disc, the positioning pin is arranged on the other side of the weighing disc, and the adjustable bolt with the adjustable position relative to the positioning pin is arranged at the bottom end of the protection bracket, so that the elastic deformation of the supporting amount of the weighing disc and the deflection variation of the weighing disc are controlled, and the large impact and the out-of-range of the weighing sensor caused by overload are avoided by combining the upper buffer plate and the lower buffer plate, so that the protection of the weighing sensor is realized.

Drawings

Fig. 1 is a schematic structural diagram of a load cell protection device according to an embodiment of the present invention;

FIG. 2 is an exploded view of a load cell protector according to an embodiment of the present invention;

FIG. 3 is a front view of a load cell protector provided in accordance with an embodiment of the present invention;

the reference numerals in the schematic drawings illustrate:

1. a protective bracket; 2. a weighing pan; 3. a weighing sensor; 4. positioning pins; 5. fixing the bolt; 6. an upper buffer plate; 7. a lower buffer plate; 8. an adjustable bolt.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of providing a more thorough disclosure of the utility model.

In the description of the present invention, the axial direction refers to the direction of the central axis of the device or component, and the radial direction is the direction perpendicular to the central axis, and this definition is only for convenience of description and should not be construed as limiting the present invention.

Referring to fig. 1, fig. 2 and fig. 3 together, the present embodiment provides a protection device for a load cell, in order to solve the above disadvantages, the present invention provides a protection device for a load cell, including a protection bracket 1, where the protection bracket 1 includes at least two side walls and a bottom end, the side walls and the bottom end enclose a protection bracket cavity, and the load cell 3 is disposed in the protection bracket 1 cavity, so as to protect the load cell and prevent foreign objects from colliding with the load cell during use.

The upper end of the weighing sensor 3 is fixedly provided with an upper buffer plate 6, the bottom surface of the upper buffer plate 6 is attached to the upper end face of the weighing sensor 3, and the upper buffer plate 6 is fixedly connected with the weighing sensor 3 through screws. The lower end of the weighing sensor 3 is fixedly provided with a lower buffer plate 7, the upper surface of the lower buffer plate 7 is attached to the lower end face of the weighing sensor 3, and the lower buffer plate 7 is fixedly connected with the weighing sensor 3 through screws.

The weighing plate is characterized in that the upper buffer plate 6 is provided with a weighing plate 2, the upper surface of the upper buffer plate 6 is attached to the lower end face of the weighing plate 2, and the upper buffer plate 6 is fixedly connected with the weighing plate 2 through screws. The lower surface of the lower buffer plate 7 is attached to the bottom end of the protection support 1, and the lower buffer plate 7 is fixedly connected with the bottom end of the protection support 1 through screws. The arrangement of the upper buffer plate 6 and the lower buffer plate 7 is beneficial to buffering the impact of the load weighing sensor 3 in the weighing process. In order to improve the buffering capacity of the buffer plate, the section of the upper buffer plate 6 can be at least one of T-shaped or I-shaped, and the section of the lower buffer plate 7 can be at least one of T-shaped or I-shaped; in this embodiment, the cross sections of the upper buffer plate 6 and the lower buffer plate 7 are i-shaped.

Two positioning pins 4 are arranged at one side of the weighing plate 2, and a fixing bolt 5 is arranged at the other side of the weighing plate. The two positioning pins 4 respectively penetrate through the weighing plate 2 and extend downwards to the upper ends of the two adjustable bolts 8, and are respectively fixedly connected with the weighing plate 2. The fixing bolt 5 sequentially penetrates through the weighing disc 2 and the bottom end of the protective support 1 to fixedly connect the weighing disc 2 and the protective support 1. When the weight on the weighing disc 2 is overloaded by the design, the weighing disc 2 can form certain deflection under the support of the fixing bolt 5, so that the buffer protection effect is achieved.

Two adjustable bolt 8 pass 1 bottom of protective bracket and upwards extend, and are coaxial respectively with two locating pin 4, adjustable bolt 8 can adjust from top to bottom to the distance between the terminal of adjustment locating pin 4 and adjustable bolt 8. If the load is too large or the instant impact is too large when a heavy object is placed, the weighing disc 2 can form certain deflection under the support of the fixing bolt 5, the positioning pin 4 can deflect downwards, and when the end part of the positioning pin 4 deflects to the end part of the adjustable bolt 8, the positioning pin 4 can be stopped from further moving downwards, so that the weighing disc 2 is prevented from further moving downwards to cause the impact or overload of the weighing sensor 3, and the weighing sensor 3 is protected.

The above-mentioned embodiments only express a certain implementation mode of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which are within the protection scope of the present invention; therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. The utility model provides a weighing sensor protection device, includes the protective cradle, its characterized in that: the weighing device is characterized in that a weighing sensor is arranged in the protection support, an upper buffer plate is fixedly arranged at the upper end of the weighing sensor, a weighing disc is arranged on the upper buffer plate and connected with the protection support through a fixing bolt, a positioning pin is further arranged on the weighing disc, the tail end of the positioning pin is close to an adjustable bolt, the adjustable bolt is arranged on the protection support and can be adjusted up and down, and therefore the distance between the tail end of the positioning pin and the adjustable bolt is adjusted.

2. The load cell protection device of claim 1, wherein: the protective bracket comprises at least two side walls and a bottom end, a protective bracket cavity is enclosed by the side walls and the bottom surface, and the weighing sensor is arranged in the protective bracket cavity.

3. The load cell protection device of claim 2, wherein: the lower end of the weighing sensor is fixedly provided with a lower buffer plate, and the lower buffer plate is fixedly connected with the bottom end of the protection support.

4. The load cell protection device of claim 3, wherein: the cross section of the upper buffer plate is at least one of T-shaped or I-shaped, and the cross section of the lower buffer plate is at least one of T-shaped or I-shaped.

5. The load cell protection device of claim 4, wherein: two positioning pins are arranged at one side of the weighing plate, and a fixing bolt is arranged at the other side of the weighing plate.

6. The load cell protection device of claim 5, wherein: the two positioning pins respectively penetrate through the weighing plate to extend downwards to the upper ends of the two adjustable bolts and are respectively fixedly connected with the weighing plate.

7. The load cell protection device of claim 6, wherein: the fixing bolt sequentially penetrates through the weighing disc and the bottom end of the protective support to fixedly connect the weighing disc with the protective support.

8. The load cell protection device of claim 7, wherein: the two adjustable bolts penetrate through the bottom end of the protective support to extend upwards, are respectively coaxial with the two positioning pins and are used for adjusting the distance between the tail end face of each positioning pin and the end face of each adjustable bolt.