A weight error metrology device

Abstract

The utility model belongs to error measurement equipment technical field, is used to solve the single function of existing weight measurement equipment, the measurement of weight error is not accurate enough, and lacks effective error alarm mechanism, cannot satisfy the industry demand of higher weight precision requirement problem. Support rod vertical setting is in the bottom plate upper end surface middle, and the support plate is hingedly arranged on the upper end of support rod, and the weight disc and the weighing disc are symmetrically arranged on the lower end face of the support plate through the hanger, the leveling assembly is rotatably arranged on the support rod and cooperatively arranged and used with the weight disc and the weighing disc, the measurement assembly is vertically arranged on the right end of the bottom plate upper end surface and cooperatively arranged and used with the weighing disc, the weight disc is arranged on the left end of the bottom plate upper end surface, and a plurality of weights are arranged in the weight disc. The utility model can accurately measure the weight error of the object, and timely issue an alarm when the weight of the object exceeds the set error range, and has the leveling function, ensuring the accuracy of the measurement result.

Description

Technical Field

[0001] This utility model belongs to the technical field of error measurement equipment, and in particular relates to a weight error measurement device. Background Technology

[0002] In numerous production and research fields, accurate measurement of object weight and precise control of weight error are crucial. For example, in pharmaceutical production, the weight of medicines must be strictly controlled within specified ranges; otherwise, efficacy may be affected or even patient safety may be endangered. In the jewelry industry, the weight error of precious metal ornaments directly affects their value. However, most existing weighing devices are single-function, providing only an approximate weight, lacking precision in measuring weight error, and lacking effective error alarm mechanisms, thus failing to meet the high precision requirements of industries. Therefore, developing a weighing device capable of accurately measuring object weight error and possessing alarm functionality is of significant practical importance. Utility Model Content

[0003] The purpose of this invention is to provide a weight error measuring device to solve the problems of existing weight measuring equipment having limited functions, insufficient accuracy in measuring weight error, and lack of an effective error alarm mechanism, thus failing to meet the industry requirements for high weight accuracy.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A weight error measuring device includes a base plate, a support rod, a support plate, a weight pan, a weighing pan, a leveling component, a measuring component, a weight tray, two hangers, and multiple weights. The base plate is horizontally set on the operating table in the left-right direction. The support rod is vertically set in the center of the upper surface of the base plate. The support plate is hinged to the upper end of the support rod. The weight pan and the weighing pan are symmetrically set at the left and right ends of the lower surface of the support plate through the hangers. When stationary, the lower surfaces of the weight pan and the weighing pan are on the same horizontal plane. The leveling component is rotatably set on the support rod and is set and used in conjunction with the weight pan and the weighing pan. The measuring component is vertically set at the right end of the upper surface of the base plate and is set and used in conjunction with the weighing pan. The weight tray is set at the left end of the upper surface of the base plate, and multiple weights are set in the weight tray.

[0005] Furthermore, a notch is provided through the middle of the upper surface of the support plate, and a rotating shaft is provided at the upper end of the support rod along the front-back direction. The upper end of the support rod is located in the middle of the rotating shaft, and the front and rear ends of the rotating shaft are rotatably connected to the middle of the front and rear inner sidewalls of the notch, respectively.

[0006] Furthermore, hanging rings are symmetrically arranged at the left and right ends of the lower end face of the support plate, and the two hanging rings are respectively hooked to the upper ends of the two hanging frames, and the lower ends of the two hanging frames are respectively fixedly connected to the corresponding weight pan and weighing pan.

[0007] Furthermore, the leveling assembly includes an adjusting plate and two handles. The adjusting plate is rotatably mounted on the outer wall of the support rod, with the support rod located in the center of the adjusting plate. The upper surface of the adjusting plate is on the same horizontal plane as the lower surface of the weight pan and the weighing pan. The handles are located at both ends of the adjusting plate. When not in use, the adjusting plate is positioned along the front-back direction. When in use, the adjusting plate is rotated to the left-right direction by using the handles to level the weight pan and the weighing pan. After leveling, the adjusting plate is rotated back to the front-back direction.

[0008] Furthermore, the measuring component includes a measuring rod, an indicator arrow, an upper limit block, a lower limit block, and two contact alarm sensors. The measuring rod is vertically mounted on the right end of the upper surface of the base plate and is configured and used in conjunction with the weighing pan. A scale line is provided on the outer wall of the measuring rod along the vertical direction. The indicator arrow is mounted on the outer wall of the weighing pan via a connecting block and is located at the front end of the measuring rod, cooperating with the scale line on the measuring rod. The upper limit block and lower limit block are both mounted on the outer wall of the measuring rod and are located at the upper and lower ends of the scale line, respectively. The two contact alarm sensors are respectively mounted on the lower end face of the upper limit block and the upper end face of the lower limit block, located at the rear end of the measuring rod. A support rod is horizontally mounted at the rear end of the right end face of the connecting block, located at the rear end of the measuring rod. Contact blocks are provided on the upper and lower end faces of the support rod, respectively, to cooperate with the two contact alarm sensors.

[0009] Furthermore, the lower end surface of the base plate is provided with multiple anti-slip pads.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model can accurately measure weight error. Through the scale lines and indicator arrows on the measuring rod, the change in the weight of the object can be read intuitively and accurately, thereby accurately measuring the weight error of the object.

[0012] 2. This utility model is equipped with an error alarm function, with an upper limit block, a lower limit block and a contact alarm sensor. When the weight of the object exceeds the set error range, an alarm can be issued in time to remind the operator to handle the situation, effectively avoiding quality problems caused by excessive weight error.

[0013] 3. This utility model is equipped with a leveling function. The design of the leveling component allows the device to be easily leveled before use, ensuring that the weight pan and weighing pan are in a horizontal state, thereby improving the accuracy of measurement.

[0014] 4. This utility model has a stable structure. The main structures such as the base plate and support rod are made of high-strength materials and are equipped with anti-slip pads, which ensures the stability of the device during use and reduces the interference of external factors on the measurement results. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model. Figure 3 ;

[0018] Figure 4 This is a schematic diagram of the overall structure of this utility model. Figure 4 ;

[0019] Figure 5 This is a schematic diagram of the overall structure of this utility model. Figure 5 ;

[0020] Figure 6 This is a schematic diagram of the overall structure of this utility model. Figure 6 .

[0021] The component names and reference numerals in the above figures are as follows:

[0022] 1. Base plate; 2. Support rod; 3. Support plate; 4. Hanger; 5. Weight pan; 6. Weighing pan; 7. Adjustment plate; 8. Weight loading pan; 9. Weight; 10. Measuring rod; 11. Connecting block; 12. Indicating arrow; 13. Upper limit block; 14. Lower limit block; 15. Scale line; 16. Support rod; 17. Anti-slip pad; 18. Hanging ring; 19. Handle; 20. Rotating shaft; 21. Contact alarm sensor; 22. Contact block. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] Detailed implementation methods: such as Figures 1-6As shown, this embodiment discloses a weight error measuring device, including a base plate 1, a support rod 2, a support plate 3, a weight pan 5, a weighing pan 6, a leveling component, a measuring component, a weight loading tray 8, two hanging brackets 4, and multiple weights 9. The base plate 1 is horizontally set on the operating table in the left-right direction, providing a stable support foundation for the entire device. The base plate 1 is made of a high-strength, wear-resistant metal material, such as stainless steel, to ensure that it is not easily deformed during long-term use and to guarantee the stability of the device. The support rod 2 is vertically set in the center of the upper end face of the base plate 1. The support rod 2 serves as the main support structure of the device, connecting the base plate 1 and the support plate 3. The support rod 2 is made of hard alloy material, which has high strength and rigidity and can withstand the weight of the support plate 3 and the objects hanging on it without bending or deforming. The support plate 3 is hinged to the upper end of the support rod 2. The weight pan 5 and the weighing pan 6 are symmetrically set at the left and right ends of the lower end face of the support plate 3 through the hanging brackets 4. The weight pan 5 is used to hold standard weights, and the weighing pan 6 is used to hold the object to be measured. Both the weight pan 5 and the weighing pan 6 are made of lightweight, high-strength aluminum alloy to reduce the impact of their own weight on the measurement results, while ensuring they can withstand objects and weights of a certain weight without damage. When stationary, the lower surfaces of the weight pan 5 and the weighing pan 6 are on the same horizontal plane. The leveling component is rotatably mounted on the support rod 2 and works in conjunction with the weight pan 5 and the weighing pan 6. The measuring component is vertically mounted on the right side of the upper surface of the base plate 1 and works in conjunction with the weighing pan 6. The weight tray 8 is located on the left side of the upper surface of the base plate 1, and multiple weights 9 are placed inside the weight tray 8. The weight tray 8 is made of plastic, which has a certain strength and wear resistance, and is also low in cost. The weights 9 are made of stainless steel, and their surfaces are precision machined to ensure accurate and stable quality. The weight specifications of the weights 9 can be selected and combined according to actual measurement needs.

[0025] Furthermore, a notch is provided through the middle of the upper end face of the support plate 3, and a rotating shaft 20 is provided at the upper end of the support rod 2 along the front-back direction. The upper end of the support rod 2 is located in the middle of the rotating shaft 20. The front and rear ends of the rotating shaft 20 are respectively rotatably connected to the middle of the front and rear inner side walls of the notch. This design allows the support plate 3 to rotate around the rotating shaft 20 within a certain range, which facilitates the subsequent leveling operation.

[0026] Furthermore, hanging rings 18 are symmetrically arranged at both ends of the lower end face of the support plate 3. The two hanging rings 18 are respectively hooked to the upper ends of the two hanging brackets 4, and the lower ends of the two hanging brackets 4 are respectively fixedly connected to the corresponding weight pan 5 and weighing pan 6, thereby achieving symmetrical suspension of the weight pan 5 and weighing pan 6 on the lower end face of the support plate 3. When stationary, the lower end faces of the weight pan 5 and weighing pan 6 are on the same horizontal plane, ensuring that the forces on both sides are balanced when no objects or weights are placed on them.

[0027] Furthermore, the leveling assembly includes an adjusting plate 7 and two handles 19. The adjusting plate 7 is rotatably mounted on the outer wall of the support rod 2, with the support rod 2 located in the center of the adjusting plate 7. The upper surface of the adjusting plate 7 is on the same horizontal plane as the lower surfaces of the weight pan 5 and the weighing pan 6. The handles 19 are located at both ends of the adjusting plate 7. When not in use, the adjusting plate 7 is positioned along the front-back direction to avoid interfering with the normal measurement of the device. In use, the adjusting plate 7 is rotated to the left-right direction by the handles 19, so that it contacts the lower surfaces of the weight pan 5 and the weighing pan 6. By observing the contact between the adjusting plate 7 and the weight pan 5 and the weighing pan 6, it is determined whether the two sides are level. If not level, leveling can be achieved by adjusting the placement of the device or the rotation angle of the support plate 3. After leveling, the adjusting plate 7 is rotated back to the front-back direction to avoid affecting the measurement process.

[0028] Furthermore, the measuring component includes a measuring rod 10, an indicator arrow 12, an upper limit block 13, a lower limit block 14, and two contact alarm sensors 21. The measuring rod 10 is vertically mounted on the right end of the upper surface of the base plate 1 and is configured and used in conjunction with the weighing pan 6. A scale line 15 is provided vertically on the outer wall of the measuring rod 10 to visually display the displacement changes of the weighing pan 6, thereby reflecting changes in the object's weight. The indicator arrow 12 is mounted on the outer wall of the weighing pan 6 via a connecting block 11 and is located at the front end of the measuring rod 10, cooperating with the scale line 15 on the measuring rod 10. When the weighing pan 6 moves up and down due to the placement of an object, the indicator arrow 12 moves accordingly. By reading the value of the scale line 15 corresponding to the indicator arrow 12, the weight of the object can be determined. The upper limit block 13 and the lower limit block 14 are both mounted on the outer wall of the measuring rod 10 and are located at the upper and lower ends of the scale line 15, respectively, to set the error range for the object's weight. Two contact-type alarm sensors 21 are respectively installed on the lower end face of the upper limit block 13 and the upper end face of the lower limit block 14, located at the rear end of the measuring rod 10. A support rod 16 is horizontally installed at the rear end of the right end face of the connecting block 11. The support rod 16 is located at the rear end of the measuring rod 10. Contact blocks 22 are respectively provided on the upper and lower end faces of the support rod 16 to cooperate with the two contact-type alarm sensors 21. When the weight of the object exceeds the set upper or lower limit error range, the contact block 22 on the support rod 16 will contact the corresponding contact-type alarm sensor 21, triggering an alarm signal to remind the operator that the weight of the object exceeds the error range.

[0029] Furthermore, the lower end face of the base plate 1 is provided with a plurality of anti-slip pads 17. The anti-slip pads 17 are made of rubber and have good anti-slip performance, which can effectively prevent the device from sliding due to minor vibrations of the operating table or external forces during use, thereby further enhancing the stability of the device.

[0030] Device assembly:

[0031] Place the base plate 1 stably on the work surface, ensuring that the work surface is flat and clean.

[0032] The support rod 2 is vertically fixed to the center of the upper surface of the base plate 1. It can be connected by welding or bolts to ensure a firm connection. The support rod 2 is perpendicular to the base plate 1.

[0033] The support plate 3 is hinged to the upper end of the support rod 2 via the pivot 20, so that the support plate 3 can rotate freely around the pivot 20, while ensuring that the support plate 3 is in a horizontal state when stationary.

[0034] Install hanging rings 18 symmetrically on the left and right ends of the lower end face of the support plate 3, and hang the upper ends of the two hanging brackets 4 on the corresponding hanging rings 18. Then fix the weight pan 5 and the weighing pan 6 to the lower ends of the two hanging brackets 4 respectively, ensuring that the lower end faces of the weight pan 5 and the weighing pan 6 are on the same horizontal plane when at rest.

[0035] Rotate the adjusting plate 7 onto the outer wall of the support rod 2 so that the support rod 2 is located in the center of the adjusting plate 7, and ensure that the upper surface of the adjusting plate 7 is on the same horizontal plane as the lower surface of the weight pan 5 and the weighing pan 6. Install handles 19 at both ends of the adjusting plate 7.

[0036] The measuring rod 10 is vertically fixed to the right end of the upper surface of the base plate 1, so that it is matched with the weighing pan 6. The scale line 15 is accurately marked on the outer wall of the measuring rod 10 in the vertical direction. The upper limit block 13 and the lower limit block 14 are installed on the outer wall of the measuring rod 10 and are located at the upper and lower ends of the scale line 15, respectively. The two contact alarm sensors 21 are installed on the lower end surface of the upper limit block 13 and the upper end surface of the lower limit block 14, respectively, and are located at the rear end of the measuring rod 10.

[0037] The indicator arrow 12 is installed on the outer wall of the weighing pan 6 via the connecting block 11 and is located at the front end of the measuring rod 10, so that the indicator arrow 12 can be used in conjunction with the scale line 15. The support rod 16 is horizontally installed at the rear end of the right end face of the connecting block 11, so that the support rod 16 is located at the rear end of the measuring rod 10, and contact blocks 22 are installed on the upper and lower end faces of the support rod 16 respectively, ensuring that the contact blocks 22 are configured to cooperate with the contact alarm sensor 21.

[0038] The weight tray 8 is fixedly installed on the left side of the upper surface of the base plate 1, and multiple weights 9 of different mass specifications are neatly placed in the weight tray 8.

[0039] Multiple anti-slip pads 17 are installed on the lower end face of the base plate 1 to ensure that the device will not slide during use.

[0040] Working principle:

[0041] This device operates based on the lever balance principle. When no object or weight is placed, the support plate 3 is in a balanced state, and the lower surfaces of the weight pan 5 and the weighing pan 6 are on the same horizontal plane. When the object to be measured is placed on the weighing pan 6, the weighing pan 6 descends due to the object's weight, causing the indicator arrow 12 to move downwards along the measuring rod 10. By reading the value of the scale line 15 corresponding to the indicator arrow 12, the weight of the object can be determined. To measure the object's weight error, a standard weight can be placed on the weight pan 5. By adjusting the mass of the weight, the support plate 3 can be brought back to a balanced state. The difference between the mass of the weight and the object's weight is the object's weight error. Simultaneously, by setting an upper limit block 13, a lower limit block 14, and a contact alarm sensor 21, when the object's weight exceeds the set error range, the contact block 22 on the support rod 16 will contact the corresponding contact alarm sensor 21, triggering an alarm signal to remind the operator that the object's weight exceeds the error range.

[0042] Work process:

[0043] Leveling Operation: Before using the device, rotate the leveling plate 7 to the left-right direction using handle 19, so that it contacts the lower surfaces of the weight pan 5 and the weighing pan 6. Observe the contact between the leveling plate 7 and the weight pan 5 and the weighing pan 6. If the leveling plate 7 is in close contact with both sides and is horizontal, the device is level. If the leveling plate 7 is in close contact with one side but has a gap with the other side, the device is not level. In this case, you can adjust the placement of the device or slightly rotate the support plate 3 to make the leveling plate 7 evenly contact both sides to achieve leveling. After leveling, rotate the leveling plate 7 back to the front-back direction.

[0044] Measuring the weight of an object: Place the object to be measured on the weighing pan 6. The weighing pan 6 will descend due to the weight of the object, causing the indicator arrow 12 to move downward along the measuring rod 10. The operator can record the initial weight of the object by observing the value of the scale line 15 corresponding to the indicator arrow 12.

[0045] Weight measurement error: According to the measurement requirements, select a standard weight of appropriate mass and place it on the weight pan 5. As the weight is added, the weight of the weight pan 5 increases, and the support plate 3 will rotate. When the support plate 3 reaches a balanced state again, stop adding weights. At this time, read the total mass of the weights on the weight pan 5 and calculate it with the object weight recorded in the previous step to obtain the object weight error.

[0046] Error alarm judgment: During the measurement process, if the weight of the object exceeds the preset upper or lower limit error range, the descent or rise of the weighing pan 6 will exceed the set value, causing the contact block 22 on the support rod 16 to contact the corresponding contact alarm sensor 21, triggering an alarm signal. The alarm signal can be an audible alarm or a flashing light alarm, reminding the operator that the object weight exceeds the error range and requires timely handling.

[0047] Measurement complete: After the measurement is completed, remove the object to be measured from the weighing pan 6, remove the weights from the weight pan 5 and put them back into the weight storage pan 8, clean the surface of the device, and put the device back in its place for the next use.

[0048] The error measuring device of this invention can accurately measure the weight error of an object. By setting upper and lower limits and a contact alarm sensor, it can issue an alarm in time when the weight of the object exceeds the set error range. It also has a leveling function to ensure the accuracy of the measurement results.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weight error measuring device, characterized in that: The system includes a base plate (1), a support rod (2), a support plate (3), a weight pan (5), a weighing pan (6), a leveling assembly, a measuring assembly, a weight loading tray (8), two hangers (4), and multiple weights (9). The base plate (1) is horizontally positioned on the operating table in the left-right direction. The support rod (2) is vertically positioned in the center of the upper surface of the base plate (1). The support plate (3) is hinged to the upper end of the support rod (2). The weight pan (5) and the weighing pan (6) are symmetrically positioned on the support plate via the hangers (4). When the plate (3) is stationary, the lower end faces of the weight pan (5) and the weighing pan (6) are on the same horizontal plane. The leveling component is rotatably set on the support rod (2) and is set and used in conjunction with the weight pan (5) and the weighing pan (6). The measuring component is vertically set on the right end of the upper end face of the base plate (1) and is set and used in conjunction with the weighing pan (6). The weight tray (8) is set on the left end of the upper end face of the base plate (1), and multiple weights (9) are set in the weight tray (8).

2. The weight error measuring device according to claim 1, characterized in that: The upper end of the support plate (3) has a notch in the middle, and the upper end of the support rod (2) has a rotating shaft (20) in the front-back direction. The upper end of the support rod (2) is located in the middle of the rotating shaft (20), and the front and rear ends of the rotating shaft (20) are rotatably connected to the middle of the front and rear inner sidewalls of the notch, respectively.

3. The weight error measuring device according to claim 2, characterized in that: The support plate (3) has two hanging rings (18) symmetrically arranged on the left and right ends of its lower end face. The two hanging rings (18) are respectively hooked to the upper ends of the two hanging frames (4), and the lower ends of the two hanging frames (4) are respectively fixedly connected to the corresponding weight pan (5) and weighing pan (6).

4. The weight error measuring device according to claim 3, characterized in that: The leveling assembly includes a leveling plate (7) and two handles (19). The leveling plate (7) is rotatably mounted on the outer wall of the support rod (2). The support rod (2) is located in the middle of the leveling plate (7). The upper surface of the leveling plate (7) is on the same horizontal plane as the lower surface of the weight pan (5) and the weighing pan (6). The handles (19) are located at both ends of the leveling plate (7). When not in use, the leveling plate (7) is set in the front-back direction. When in use, the leveling plate (7) is rotated to the left-right direction by the handles (19) to level the weight pan (5) and the weighing pan (6). After leveling, the leveling plate (7) is rotated back to the front-back direction.

5. The weight error measuring device according to claim 4, characterized in that: The measuring component includes a measuring rod (10), an indicator arrow (12), an upper limit block (13), a lower limit block (14), and two contact alarm sensors (21). The measuring rod (10) is vertically mounted on the right side of the upper surface of the base plate (1) and is configured and used in conjunction with the weighing pan (6). A scale line (15) is provided vertically on the outer wall of the measuring rod (10). The indicator arrow (12) is mounted on the outer wall of the weighing pan (6) via a connecting block (11) and is located at the front end of the measuring rod (10), cooperating with the scale line (15) on the measuring rod (10). The upper limit block (13) and the lower limit block (14) are both set on the outer wall of the measuring rod (10) and located at the upper and lower ends of the scale line (15). Two contact alarm sensors (21) are respectively set on the lower end face of the upper limit block (13) and the upper end face of the lower limit block (14) and located at the rear end of the measuring rod (10). A support rod (16) is horizontally provided at the rear end of the right end face of the connecting block (11). The support rod (16) is located at the rear end of the measuring rod (10). The upper and lower end faces of the support rod (16) are respectively provided with contact blocks (22) that are configured and used in conjunction with the two contact alarm sensors (21).

6. The weight error measuring device according to claim 5, characterized in that: The bottom surface of the base plate (1) is provided with multiple anti-slip pads (17).

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