Weighing calibration device of powder scale

Abstract

The utility model discloses a scale calibration device of a powder scale, which belongs to the technical field of concrete mixing and comprises a scale calibration unit and a suspension assembly. Each scale calibration unit comprises a weight platform used for supporting a weight and a protective fence surrounding the weight platform, and a connecting structure used for combining and connecting different scale calibration units is formed on the protective fence. Each suspension assembly comprises a supporting piece used for being fixed to the powder scale and a suspension iron chain connected with the supporting piece, the end, away from the supporting piece, of the suspension iron chain is detachably connected with the protective guard, and the multiple suspension assemblies are symmetrically arranged so that the scale calibration unit can keep balanced. The powder scale calibration device has the advantage that the powder scale can be calibrated conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete mixing, in particular to a calibration device for a powder material scale. Background Art

[0002] In concrete mixing plants and mixing towers, the powder metering hopper is a key component used for accurate metering of powders such as cement and fly ash. This component is installed on the metering layer of the mixing main building, receives cement or fly ash from the powder tank through a screw conveyor, and meters it. Subsequently, the powder directly enters the mixing main machine through the discharge port for mixing. To ensure the accuracy of powder metering, the powder metering hopper needs to be calibrated at the beginning of use and after a period of use to avoid weighing errors affecting the quality of concrete.

[0003] At present, there is no calibration device designed specifically for mixing station powder scales on the market. The current calibration method is to place a 25kg weight on the powder weighing hopper for calibration. However, due to the small space above the powder weighing hopper and the high distance between the powder weighing hopper and the measuring layer, the operator is required to move the weight to the corresponding position. This practice not only involves safety hazards of high-altitude operations, but also consumes a lot of manpower. Utility Model Content

[0004] The utility model provides a powder material scale calibration device to solve the technical problem that the existing powder material scale calibration is difficult.

[0005] According to one aspect of the utility model, a calibration device for a powder scale is provided, comprising a calibration unit and a suspension assembly; the calibration unit comprises a weight platform for supporting weights and a guardrail surrounding the weight platform, a connection structure for combining and connecting different calibration units is formed on the guardrail; the suspension assembly comprises a support for fixing on the powder scale and a suspension chain connected to the support, an end of the suspension chain away from the support is detachably connected to the guardrail, and a plurality of suspension assemblies are symmetrically arranged to keep the calibration unit balanced.

[0006] Optionally, the guardrail includes a column and a beam, and a plurality of the columns are arranged along the edge of the weight platform, one end of the column is fixedly connected to the weight platform, and both ends of the beam are respectively connected to two adjacent columns.

[0007] Optionally, the connection structure includes a connecting rod and a locking bolt, the connecting rod passes through two columns belonging to different calibration units, and the locking bolt is threadedly connected to the connecting rod to lock the position of the connecting rod relative to the column.

[0008] Optionally, an adjusting member is provided at one end of the column away from the weight platform, the suspension chain is connected to the farthest end of the adjusting member relative to the column, and the adjusting member is movably connected to the column to adjust the maximum distance between the adjusting member and the column.

[0009] Optionally, a top cover is provided at the end of the column, the adjusting member includes two rod portions and an arc-shaped connecting portion connecting the two rod portions, both rod portions pass through the top cover and are threadedly connected with bolts, and the suspension chain is connected to the arc-shaped connecting portion.

[0010] Optionally, the support member includes two vertically arranged support plates, one support plate is used to be connected to the powder scale, and the other support plate is used to be connected to the suspension chain.

[0011] Optionally, a reinforcing plate is arranged between the two supporting plates, and the reinforcing plate is perpendicular to the two supporting plates and fixedly connected to the two supporting plates.

[0012] Optionally, the guardrail includes four columns, and four suspension components are provided, and the suspension chains of the suspension components are connected to the columns of the guardrail in a one-to-one correspondence.

[0013] Optionally, a connecting rib is provided at the end of the crossbeam, and a bolt threadedly connected to the column is passed through the connecting rib to fix the crossbeam on the column.

[0014] Optionally, a connecting plate is provided on the weight platform, and the connecting plates on adjacent weight platforms are fixedly connected by passing bolts and tightening nuts.

[0015] In summary, the present application includes at least one of the following beneficial technical effects:

[0016] 1. The calibration unit is suspended under the powder scale through the suspension assembly, so that the weight platform of the calibration unit is closer to the metering layer, which is convenient for the staff to place the weight on the suspension platform, reducing the safety hazards of high-altitude operations and making calibration more convenient;

[0017] 2. By setting up multiple calibration units, it is possible to combine them according to the size of the powder scale that needs to be calibrated. When weighing the powder silos on both sides, one calibration unit can be used for calibration; when weighing the intermediate powder silo, one powder calibration unit is difficult to accommodate the required weights. At this time, multiple calibration units can be connected as components through a connecting structure to accommodate more weights, so that the intermediate powder silo with a larger required measuring range can be calibrated.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of a calibration device for a powder material scale in a preferred embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of a combination of two calibration units in a preferred embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of a support member of a preferred embodiment of the utility model.

[0023] Legend:

[0024] 1. Weight platform; 2. Guardrail; 21. Column; 22. Crossbeam; 23. Connecting rib plate; 3. Suspension chain; 4. Support member; 41. Support plate; 42. Reinforcement plate; 5. Connecting rod; 6. Adjustment member; 7. Connecting plate; 8. Powder intermediate bin; 9. Powder side bin. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0026] The following is combined with Figure 1-3 This application is described in further detail.

[0027] The embodiment of the present application discloses a calibration device for a powder material scale.

[0028] Reference Figure 1The calibration device of the powder scale includes a calibration unit and a suspension assembly; the calibration unit includes a weight platform 1 for supporting weights and a guardrail 2 surrounding the weight platform 1, and a connecting structure for combining and connecting different calibration units is formed on the guardrail 2; the suspension assembly includes a support 4 for fixing on the powder scale and a suspension chain 3 connected to the support, and the end of the suspension chain 3 away from the support 4 is detachably connected to the guardrail 2, and a plurality of suspension assemblies are symmetrically arranged to keep the calibration unit balanced. The design of the calibration device of the powder scale is intended to ensure the accuracy of calibration and the safety of operation. The weights required for calibration can be safely and stably placed and supported by the weight platform 1 and the surrounding guardrail 2. The connection structure on the guardrail 2 allows different calibration units to be combined, enhancing the flexibility and adaptability of the system to meet the calibration needs of powder scales of different sizes. The suspension assembly provides structural support for the entire device, through the support 4 fixed on the powder scale and the suspension chains 3 connected thereto, which can be detachably connected to the guardrail 2, to ensure the stability and balance of the calibration unit. Multiple symmetrically arranged suspension assemblies further enhance the stability and balance of the entire system, thereby ensuring the accuracy of the calibration process and the safety of operation.

[0029] Reference Figure 2 The guardrail 2 includes a column 21 and a crossbeam 22. A plurality of columns 21 are arranged along the edge of the weight platform 1. One end of the column 21 is fixedly connected to the weight platform 1, and the two ends of the crossbeam 22 are respectively connected to two adjacent columns 21. The plurality of columns 21 arranged along the edge of the weight platform 1 and the crossbeam 22 connecting these columns 21 provide important safety and structural support for the calibration unit. The arrangement of the columns 21 enhances the stability of the entire calibration unit because they are directly fixedly connected to the weight platform 1, thereby providing a solid support structure for the weights placed on the platform. The addition of the crossbeam 22 further strengthens the structural integrity of the guardrail 2, and by connecting adjacent columns 21, a more robust and durable frame is formed. Such a design not only protects the weights from external interference and ensures the accuracy and continuity of the calibration process, but also provides a higher safety guarantee for the operator to prevent the weights from accidentally slipping or moving.

[0030] The connection structure includes a connecting rod 5 and a locking bolt. The connecting rod 5 passes through two columns 21 belonging to different calibration units, and the locking bolt is threadedly connected to the connecting rod 5 to lock the position of the connecting rod 5 relative to the column 21. The connection structure consists of a connecting rod 5 and a locking bolt, which brings flexible combination and stable fixing functions to the powder scale calibration device. The connecting rod 5 passes through the columns 21 belonging to different calibration units. Such a layout allows separate calibration units to be easily connected together, thereby expanding or adjusting the size and shape of the entire calibration platform according to calibration needs. The locking bolt is threadedly connected to the connecting rod 5, so that once the connecting rod 5 is placed in a suitable position, the position of the connecting rod 5 relative to the column 21 can be quickly and firmly locked by the locking bolt. This design not only provides flexibility in assembling and adjusting the calibration device, but also ensures that once set up, the connection between the calibration units is stable and safe, thereby ensuring the accuracy of the calibration process and the safety of operation.

[0031] An adjusting member 6 is provided at one end of the column 21 away from the weight platform 1, and a suspension chain 3 is connected to the farthest end of the adjusting member 6 relative to the column 21, and the adjusting member 6 is movably connected to the column 21 to adjust the maximum distance between the adjusting member 6 and the column 21. The design that the adjusting member 6 is provided at one end of the column 21 away from the weight platform 1 and the suspension chain 3 is connected to the farthest end of the adjusting member 6 significantly improves the adjustment flexibility and balance accuracy of the powder scale calibration device. The adjusting member 6 is movably connected to the column 21, allowing the operator to adjust the maximum distance between the adjusting member 6 and the column 21 according to actual needs, and this adjustment mechanism enables the horizontality of the calibration platform 1 to be accurately controlled. This is very important to ensure that the calibration unit remains horizontal and stable during use, especially under different loads or different calibration scenarios. In addition, such a design also provides convenience for the operator, making the fine-tuning of the calibration device simpler and more efficient. The operator can adjust the maximum distance between the adjusting member 6 and the column 21 according to actual needs to adapt to different calibration requirements. The introduction of this adjustment mechanism not only improves the convenience of operation, but also reduces the workload of operators and improves work efficiency.

[0032] A top cover is provided at the end of the column 21, and the adjusting member 6 includes two rods and an arc-shaped connecting portion connecting the two rods. Both rods pass through the top cover and are threadedly connected with bolts, and the suspension chain 3 is connected to the arc-shaped connecting portion. A top cover is provided at the end of the column 21, and the adjusting member 6 is composed of two rods and an arc-shaped connecting portion connecting the two rods. This design provides a more detailed and flexible adjustment mechanism, and enhances the stability and adjustability of the calibration device. The two rods pass through the top cover and are threadedly connected by bolts. Such a structure allows the length and position of the adjusting member 6 to be precisely adjusted. This fine adjustment mechanism allows the user to adjust the suspension according to different calibration requirements.

[0033] A reinforcing plate 42 is provided between the two support plates, and the reinforcing plate 42 is perpendicular to the two support plates 41 and fixedly connected to the two support plates 41. The design of providing the reinforcing plate 42 between the two support plates 41, and the reinforcing plate 42 is perpendicular to the two support plates 41 and fixedly connected to them, mainly serves to improve the strength and stability of the entire supporting structure. The reinforcing plate 42, as a structural support, increases the rigidity between the support members 4, thereby reducing the distortion or deformation that may occur during use. This stable structure is particularly important because it ensures uniform force transmission and stable support during the calibration of the powder scale, thereby enhancing the accuracy and repeatability of the calibration. In addition, the presence of the reinforcing plate 42 also makes the entire support system more durable, able to withstand long-term use and stress under various working conditions, thereby improving the reliability and life of the calibration device. In general, this design optimizes the performance and durability of the calibration device by enhancing the structural support.

[0034] The guardrail 2 includes four columns 21, and four suspension assemblies are provided. The suspension chains 3 of the suspension assemblies are connected to the columns 21 of the guardrail 2 in a one-to-one correspondence. Firstly, by connecting each suspension chain 3 to a separate column 21, the balance and stability of the calibration device are ensured. This one-to-one connection method enables each suspension assembly to evenly distribute weight and tension, thereby reducing errors and stability problems caused by unbalanced loads. Secondly, this design also increases the flexibility and adjustability of the calibration system, because each suspension chain 3 can be adjusted individually to adapt to different calibration needs and conditions. In addition, the direct connection between each column 21 and the suspension chain 3 also enhances the safety of the entire calibration device, because it reduces the risk of accidents that may occur due to imbalance or accidental movement of the device.

[0035] The end of the crossbeam 22 is provided with a connecting rib plate 23, and the connecting rib plate 23 is provided with bolts threadedly connected to the column 21 to fix the crossbeam 22 on the column 21. First, by combining the connecting rib plate 23 and the bolt, the crossbeam 22 can be firmly fixed on the column 21. This fixing method not only provides a strong supporting force, but also allows the crossbeam 22 to withstand a heavier load without deformation or breakage. Secondly, the bolt connection provides a reliable and easy-to-install and maintain method, so that the connection between the crossbeam 22 and the column 21 is both stable and flexible. When adjustment or maintenance is required, it can be easily disassembled and reinstalled. In addition, this design also helps to disperse and balance the force on the entire structure, improving the overall stability and safety of the system. Therefore, by arranging the connecting rib plate 23 and the bolt at the end of the crossbeam 22, not only the stability and durability of the structure are enhanced, but also the convenience of maintenance and adjustment is improved.

[0036] A connecting plate 7 is provided on the weight platform 1, and the connecting plates 7 on adjacent weight platforms 1 are fixedly connected by passing bolts and locking nuts. First, through this connection method, a plurality of weight platforms 1 can be stably and tightly connected, which is very important for maintaining the stability and consistency of the overall structure. Secondly, the use of bolts and nuts makes the connection both firm and reliable, while providing a certain flexibility. When the number of weight platforms 1 needs to be adjusted, increased or decreased, it can be easily disassembled and assembled, which increases the adaptability and configurability of the system. In addition, this design also helps to evenly distribute the load, reduce the pressure on a single platform, and improve the service life and safety of the entire system. Therefore, by arranging a connecting plate 7 on the weight platform 1 and fixing it with bolts and nuts, not only the stability and strength of the structure are increased, but also convenience and flexibility in operation are provided.

[0037] Reference Figure 3 , the support member 4 includes two vertically arranged support plates 41, one support plate 41 is used to connect to the powder scale, and the other support plate 41 is used to connect to the suspension chain 3. The support member 4 is designed to include two vertically arranged support plates 41, and this structure plays a key role in the calibration process of the powder scale. One support plate 41 is specifically used to connect to the powder scale, ensuring that the entire calibration device is firmly fixed to the scale body, thereby increasing the overall stability and safety of the system. The other vertical support plate 41 is used to connect to the suspension chain 3. This layout enables the suspension chain 3 to directly transfer force from the calibration unit to the powder scale, ensuring the accuracy and efficiency of the calibration process. This separate design also makes the installation, adjustment and maintenance of the calibration device easier and more flexible, because the powder scale or the suspension system can be adjusted and inspected separately.

[0038] In a specific embodiment, the powder scale includes a powder middle bin 8 and a powder side bin 9, wherein the volume of the powder middle bin 8 is larger than the volume of the powder side bin 9. By setting a plurality of calibration units, it can be combined according to the size of the powder scale to be calibrated. When the powder side bin 9 is calibrated, only one calibration unit is needed. When the powder middle bin 8 is calibrated, one powder calibration unit is difficult to accommodate the required weights. At this time, the two calibration units can be connected by a connecting structure to accommodate more weights. The larger capacity powder middle bin 8 can be calibrated, and the measuring range is larger.

[0039] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A calibration device for a powder scale, characterized in that: Including calibration unit and suspension assembly; The calibration unit comprises a weight platform (1) for supporting a weight and a guardrail (2) surrounding the weight platform (1), wherein a connection structure for combining and connecting different calibration units is formed on the guardrail (2); The suspension assembly comprises a support member (4) for fixing on the powder material scale and a suspension chain (3) connected to the support member, wherein one end of the suspension chain (3) away from the support member (4) is detachably connected to the guardrail (2), and a plurality of the suspension assemblies are symmetrically arranged so that the calibration unit can maintain balance.

2. The calibration device for a powder material scale according to claim 1, characterized in that: The guardrail (2) comprises a column (21) and a crossbeam (22), wherein a plurality of columns (21) are arranged along the edge of the weight platform (1), one end of the column (21) is fixedly connected to the weight platform (1), and the two ends of the crossbeam (22) are respectively connected to two adjacent columns (21).

3. The calibration device for a powder material scale according to claim 1, characterized in that: The connection structure comprises a connecting rod (5) and a locking bolt, wherein the connecting rod (5) passes through two columns (21) belonging to different calibration units, and the locking bolt is threadedly connected to the connecting rod (5) to lock the position of the connecting rod (5) relative to the column (21).

4. The calibration device for a powder material scale according to claim 2, characterized in that: An adjusting member (6) is provided at one end of the column (21) away from the weight platform (1); the suspension chain (3) is connected to the farthest end of the adjusting member (6) relative to the column (21); and the adjusting member (6) and the column (21) are movably connected to achieve a maximum distance between the adjusting member (6) and the column (21).

5. The calibration device for a powder scale according to claim 4, characterized in that: A top cover is provided at the end of the column (21), the adjusting member (6) comprises two rod portions and an arc-shaped connecting portion connecting the two rod portions, both rod portions pass through the top cover and are threadedly connected with bolts, and the suspension chain (3) is connected to the arc-shaped connecting portion.

6. The calibration device for a powder material scale according to claim 1, characterized in that: The support member (4) comprises two vertically arranged support plates (41), one support plate (41) is used to be connected to the powder scale, and the other support plate (41) is used to be connected to the suspension chain (3).

7. The calibration device for a powder material scale according to claim 6, characterized in that: A reinforcing plate (42) is arranged between the two supporting plates, and the reinforcing plate (42) is perpendicular to the two supporting plates (41) and fixedly connected to the two supporting plates (41).

8. The calibration device for a powder material scale according to claim 2, characterized in that: The guardrail (2) comprises four upright posts (21), and four suspension components are provided. The suspension chains (3) of the suspension components are connected to the upright posts (21) of the guardrail (2) in a one-to-one correspondence.

9. The calibration device for a powder material scale according to claim 2, characterized in that: A connecting rib plate (23) is provided at the end of the cross beam (22), and bolts threadedly connected to the upright column (21) are passed through the connecting rib plate (23) to fix the cross beam (22) to the upright column (21).

10. The calibration device for a powder material scale according to claim 1, characterized in that: The weight platform (1) is provided with a connecting plate (7), and the connecting plates (7) on adjacent weight platforms (1) are fixedly connected by passing bolts through them and tightening nuts.

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