CN214893644U - Overload-proof electronic balance - Google Patents
Overload-proof electronic balance Download PDFInfo
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- CN214893644U CN214893644U CN202120694749.6U CN202120694749U CN214893644U CN 214893644 U CN214893644 U CN 214893644U CN 202120694749 U CN202120694749 U CN 202120694749U CN 214893644 U CN214893644 U CN 214893644U
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- weighing sensor
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Abstract
The utility model discloses an anti-overloading electronic balance relates to the weighing instrument field, include: the device comprises a base, a weighing plate and a weighing sensor; the weighing sensor comprises a weighing part and an installation part, the weighing plate is connected with the weighing part of the weighing sensor, and the installation part of the weighing sensor is installed on the base; a deformation gap exists between the bottom of the weighing part and the base; the base is seted up the first bar through-hole that is used for the installation clearance adjustment sliding block with the region that the portion bottom corresponds of weighing, and the clearance adjustment sliding block is fixed at first bar through-hole. Based on the utility model discloses, in the transportation, can dial the clearance adjustment sliding block to the OFF shelves, reduce the clearance between weighing portion bottom and the base, effectively protect weighing sensor, avoid the impact among the transportation engineering to cause weighing sensor to damage. Simultaneously, in actual work, can adjust clearance to ON through the clearance adjustment sliding block according to the range of sensor to the different range weighing sensor's of adaptation overload protection.
Description
Technical Field
The utility model relates to a measuring instrument field, in particular to electronic balance of anti-overloading.
Background
In the field of balances, a weighing sensor usually reflects the state of an object by converting strain gauge deformation caused by the weight of the object into a resistance value and acquiring current or voltage information. In the actual working process, if the strain sheet variable is too large or exceeds the measuring range, the weighing sensor is damaged. The important reasons include: 1) The user weighs a heavy and out-of-range item on the balance, 2) the balance is overloaded by momentary impacts during transport. In summary, the prior art is still deficient in overload protection for balances.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, the technical problem to be solved by the present invention is to provide a balance comprising a weighing overload protection mechanism, which aims to provide overload protection for the balance.
In order to achieve the above object, in a preferred first embodiment, there is provided an overload protection electronic balance, characterized in that the balance comprises: the device comprises a base, a scale pan, a weighing sensor and a gap adjusting sliding block; the weighing sensor comprises a weighing part for deformation and an installation part for installation and fixation, the weighing plate is fixedly connected with the weighing part of the weighing sensor, and the installation part of the weighing sensor is fixedly connected with the base;
a deformation gap is formed between the bottom of the weighing part and the base; a first strip-shaped through hole for mounting the gap adjusting sliding block is formed in the area, corresponding to the bottom of the weighing part, of the base, and the gap adjusting sliding block is mounted on the first strip-shaped through hole;
the gap adjusting sliding block comprises a finger touch end and a supporting end; the finger touch end is provided with a convex point and a pointer for increasing friction force; the supporting end is sequentially provided with a first table board and a second table board and is positioned in the deformation extension direction of the weighing part when the weighing sensor is used for weighing or is stressed; when the gap adjusting sliding block is slid, the first table top and the second table top are switched to the corresponding positions of the weighing part in the deformation extending direction; the distance between the first table top and the bottom of the weighing part is a first gap, and the distance between the second table top and the bottom of the weighing part is a second gap; the first gap is greater than the second gap.
In this technical solution, the distance between the first table top, the second table top and the base can be changed by the gap adjusting sliding block; in the transportation process, the gap adjusting sliding block is adjusted to the distance to be a second gap, so that the balance is effectively protected; in actual work, the gap can be adjusted through the gap adjusting sliding block according to the measuring range of the sensor, so that the overload protection of weighing sensors with different measuring ranges can be adapted.
Furthermore, the diameter of the supporting end is larger than that of the middle part of the gap adjusting sliding block, and the supporting end and the gap adjusting sliding block are in a T shape; the diameter of the finger touch end is larger than that of the first strip-shaped through hole.
In this technical scheme, clearance adjustment sliding block and first bar through-hole sliding fit satisfy sliding fit's diameter relation between the two diameters of sliding contact position. Increase the area of contact of clearance adjustment sliding block on the one hand with the sensor through setting up the support end, reduce local pressure, simultaneously, prevent that the clearance adjustment sliding block from dropping.
In a specific embodiment, the middle of the gap adjustment sliding block comprises a stop baffle, the stop baffle is located above the first strip-shaped through hole, and the stop baffle defines the lowest height of the gap adjustment sliding block.
In this technical scheme, through setting for the end baffle, the biggest value of the deformation of weighing of injecing the balance in work on the one hand, on the other hand also avoids the clearance adjustment sliding block to drop.
In a specific embodiment, the first through hole is provided with a color mark for marking the corresponding position of the deformation extending direction of the first table surface and the second table surface on the gap adjusting sliding block; when the clearance adjustment slider is in higher position, the pointer directive position is red, and when the clearance adjustment slider is in lower position, the pointer directive position is green.
Preferably, the first through hole is provided with a character mark for marking the corresponding position of the deformation extending direction of the first table top and the second table top on the gap adjusting sliding block; when the gap adjustment slider is in a high position, the pointer pointing position is OFF, and when the gap adjustment slider is in a low position, the pointer pointing position is ON.
In this technical scheme, set up the sign be convenient for producers and user of service person discernment are present the position that the clearance adjustment sliding block is present.
In another specific embodiment, the gap adjustment sliding block is a cylinder, the finger touching end of the gap adjustment sliding block is a circular cap and is disposed on a first end surface of the cylinder, and the first and second table surfaces of the supporting end are circumferentially arranged on a second end surface of the cylinder.
In a specific embodiment, the balance further comprises: the device comprises a main controller, input keys and a display module; the first input end of the main controller is connected with the weighing sensor, the second input end of the main controller is connected with the input key, and the third output end of the main controller is connected with the display module.
The utility model has the advantages that: in the in-process of transporting the balance, can dial the clearance adjustment sliding block to the OFF shelves, reduce the clearance between portion of weighing bottom and the base, effectively protect weighing sensor, avoid the impact among the transportation engineering to cause weighing sensor to damage simultaneously, in actual work, can pass through the clearance adjustment sliding block according to the range of sensor and adjust clearance to ON to the overload protection of the different range weighing sensor of adaptation.
Drawings
FIG. 1 is a schematic diagram of a balance with overload protection in one embodiment of the present invention;
FIG. 2 is a block circuit diagram of a balance with overload protection in one embodiment of the invention;
FIG. 3 is a diagram of a gap slider block of a balance with overload protection in one embodiment of the present invention;
FIG. 4 is a diagram of a circular gap slider block for a balance with overload protection in one embodiment of the present invention;
FIG. 5 is a schematic representation of a circular gap slider of a balance with overload protection in one embodiment of the invention in a transport state;
fig. 6 is a schematic diagram of a circular gap slider of a balance with overload protection in an embodiment of the invention in use by a user.
Detailed Description
The invention will be further explained with reference to the following figures and examples:
in a first embodiment of the present invention, as shown in fig. 1 to 6, there is provided a balance including a weighing overload protection mechanism, the balance comprising: a base 101, a scale pan 200, a load cell 300, and a gap adjustment slider 400; the weighing sensor 400 comprises a weighing part 301 for deformation and a mounting part 302 for mounting and fixing, the scale pan 200 is fixedly connected with the weighing part 301 of the weighing sensor, and the mounting part 302 of the weighing sensor is fixedly connected with the base 101;
a deformation gap exists between the bottom of the weighing part and the base 101; a first strip-shaped through hole for installing the gap adjusting sliding block 400 is formed in the area, corresponding to the bottom of the weighing part, of the base 101, and the gap adjusting sliding block 400 is installed on the first strip-shaped through hole;
the gap adjustment slider includes a finger touch end 404 and a support end 403; the finger touch end 404 is provided with a salient point and a pointer 405 for increasing friction force; a first table board 401 and a second table board 402 are sequentially arranged on the supporting end 403, and the supporting end 403 is positioned in the deformation extension direction of the weighing part when the weighing sensor is used for weighing or is stressed; when the gap adjustment slider 400 is slid, the first table surface 401 and the second table surface 402 are switched to positions corresponding to the deformation extension directions of the weighing part; the distance between the first table board 401 and the bottom of the weighing part is a first gap, and the distance between the second table board 402 and the bottom of the weighing part is a second gap; the first gap is greater than the second gap.
In this technical scheme, when the in-process of transportation balance, can set up clearance adjustment sliding block 400 into higher position, reduce the clearance between 301 bottoms of portion of weighing and the base 101, effectively protect weighing sensor 300, avoid the impact among the transportation engineering to cause weighing sensor 300 to damage. Meanwhile, in actual work, the gap can be adjusted through the gap adjusting sliding block 400 according to the measuring range of the sensor, so that the overload protection of the weighing sensor 300 with different measuring ranges can be adapted.
Further, the diameter of the support end 403 is larger than the diameter of the middle part of the gap adjustment sliding block 400, and is T-shaped with the gap adjustment sliding block 400; the diameter of the finger touch end is larger than that of the first strip-shaped through hole.
It is worth mentioning that the clearance adjustment sliding block 400 is in sliding fit with the first bar-shaped through hole, and the diameters of the sliding contact positions satisfy the diameter relationship of the sliding fit. Increase the area of contact with the sensor of clearance adjustment sliding block 400 on the one hand through setting up the pole cap, reduce local pressure, simultaneously, prevent that clearance adjustment sliding block 400 from dropping.
In a specific embodiment, the middle of the gap adjustment sliding block 400 includes a stop baffle, which is located above the first through-hole and defines the lowest height of the gap adjustment sliding block 400.
In this technical scheme, through setting for the end baffle, the biggest value of the deformation of weighing of limited balance in work on the one hand, on the other hand also avoids clearance adjustment sliding block 400 to drop.
In a specific embodiment, the first through hole is provided with a color mark for marking the corresponding positions of the deformation extending directions of the first table top 401 and the second table top 402 on the gap adjustment sliding block 400; when the gap adjustment slider 400 is in the upper position, the pointer 405 pointing position is red, and when the gap adjustment slider 400 is in the lower position, the pointer 405 pointing position is green.
Preferably, the first through hole is provided with a text mark for marking the corresponding position of the deformation extending direction of the first table top 401 and the second table top 402 on the gap adjustment sliding block 400; when the gap adjustment slider 400 is in the upper position, the pointer 405 pointing position is OFF, and when the gap adjustment slider 400 is in the lower position, the pointer 405 pointing position is ON.
In another specific embodiment, the gap adjustment sliding block 400 is a cylinder, the finger touching end 404 of the gap adjustment sliding block 400 is a circular cylinder and is disposed on a first end surface of the cylinder, and the first and second lands 401 and 402 of the supporting end 403 are circumferentially arranged on a second end surface of the cylinder.
In a specific embodiment, the balance further comprises: a main controller 113, an input key 104, and a display module 105; the first input end of the main controller is connected with the weighing sensor 300, the second input end of the main controller 113 is connected with the input key 104, and the third output end of the main controller 113 is connected with the display module 105.
It is worth mentioning that the electronic scale is further provided with an upper cover 102, the upper cover 102 is connected with the base 101, and a through hole is formed in the middle of the upper cover 102, so that the scale pan 200 can be conveniently installed. The main controller 113, the input keys 104, and the display module 105 are disposed on the PCB board 103. The weighing pan 200 is fixed on the weighing sensor 300, and balancing feet 106 are arranged at four corners of the bottom of the balance.
This use is novel through setting up different high mesa on the clearance adjustment sliding block, can dial the clearance adjustment sliding block to the OFF shelves, reduces the clearance between weighing portion bottom and the base, effectively protects weighing sensor, avoids the impact among the transport engineering to cause weighing sensor to damage. Simultaneously, in actual work, can adjust clearance to ON through the clearance adjustment sliding block according to the range of sensor to the different range weighing sensor's of adaptation overload protection.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (7)
1. An overload protection electronic balance, characterized in that the balance comprises: the device comprises a base, a scale pan, a weighing sensor and a gap adjusting sliding block; the weighing sensor comprises a weighing part for deformation and an installation part for installation and fixation, the weighing plate is fixedly connected with the weighing part of the weighing sensor, and the installation part of the weighing sensor is fixedly connected with the base;
a deformation gap is formed between the bottom of the weighing part and the base; a first strip-shaped through hole for mounting the gap adjusting sliding block is formed in the area, corresponding to the bottom of the weighing part, of the base, and the gap adjusting sliding block is mounted on the first strip-shaped through hole;
the gap adjusting sliding block comprises a finger touch end and a supporting end; the finger touch end is provided with a convex point and a pointer for increasing friction force; the supporting end is sequentially provided with a first table board and a second table board and is positioned in the deformation extension direction of the weighing part when the weighing sensor is used for weighing or is stressed; when the gap adjusting sliding block is slid, the first table top and the second table top are switched to the corresponding positions of the weighing part in the deformation extending direction; the distance between the first table top and the bottom of the weighing part is a first gap, and the distance between the second table top and the bottom of the weighing part is a second gap; the first gap is greater than the second gap.
2. The electronic balance of claim 1, wherein the diameter of the finger touch end is larger than the diameter of the middle part of the gap adjusting slider and is T-shaped with the gap adjusting slider; the diameter of the finger touch end is larger than that of the first strip-shaped through hole.
3. The electronic balance as claimed in claim 1, wherein the gap adjustment slider comprises a stop plate in the middle, the stop plate is located above the first through-hole, and the stop plate defines the lowest height of the gap adjustment slider.
4. An overload protection electronic balance as claimed in claim 1, wherein; and the first strip-shaped through hole is provided with a color mark for marking the corresponding positions of the deformation extending direction of the first table board and the second table board on the gap adjusting sliding block.
5. The overload-prevention electronic balance according to claim 1, wherein the first through hole is provided with a text mark for marking the corresponding position of the deformation extending direction of the first table surface and the second table surface on the gap adjusting sliding block.
6. The electronic balance of claim 1, wherein the gap adjustment slider is a cylinder, the finger-touching end of the gap adjustment slider is a circular cylinder and is disposed on a first end face of the cylinder, and the first and second lands of the support end are circumferentially arranged on a second end face of the cylinder.
7. An overload protection electronic balance according to any one of claims 1 to 6 wherein the balance further comprises: the device comprises a main controller, input keys and a display module; the first input end of the main controller is connected with the weighing sensor, the second input end of the main controller is connected with the input key, and the third output end of the main controller is connected with the display module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120694749.6U CN214893644U (en) | 2021-04-06 | 2021-04-06 | Overload-proof electronic balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120694749.6U CN214893644U (en) | 2021-04-06 | 2021-04-06 | Overload-proof electronic balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214893644U true CN214893644U (en) | 2021-11-26 |
Family
ID=78886526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120694749.6U Active CN214893644U (en) | 2021-04-06 | 2021-04-06 | Overload-proof electronic balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214893644U (en) |
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2021
- 2021-04-06 CN CN202120694749.6U patent/CN214893644U/en active Active
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