A weighing instrument measurement test simulation weight loading device

Abstract

The utility model relates to the technical field of measurement and testing, and discloses a device for loading simulated weights for measuring and testing of weighing instruments, comprising a column 1, a column 2 is installed above the column 1, an extension arm 1 is installed on the side of the column 2 near the top, an extension arm 2 is provided at the front end of the extension arm 1, a knob sleeve is provided at the bottom position of the front end of the extension arm 2, a screw connected by a thread is passed through the knob sleeve, a fixing plate is installed at the bottom end of the screw, and a pressure sensor is installed on the bottom surface of the fixing plate. The simulated weight loading device drives the pressure sensor to move by rotating the screw up and down. When the weighing instrument is placed horizontally, after the screw is lowered, the pressure value of the pressure sensor on its surface can be regarded as the weight applied to the weighing instrument. No weights are used, and there is no wear consideration. At the same time, the way the screw rotates up and down also facilitates operation, and there is no need to replace weights of different specifications each time, which facilitates the test operation and can shorten the time consumption of the measurement test of the weighing instrument.

Description

Technical Field

[0001] The utility model relates to the technical field of measurement and testing, in particular to a weighing instrument measurement and testing simulation weight loading device. Background Art

[0002] A weighing instrument is an instrument that uses Hooke's law or the principle of lever balance to measure the mass of an object. A weighing instrument mainly consists of three parts: a load-bearing system (such as a scale pan), a force transmission conversion system (such as a lever force transmission system), and an indication system (such as a dial). Weighing instruments can be divided into three categories according to their structural principles: mechanical scales, electronic scales, and electromechanical combined scales.

[0003] Most of the measurement tests of weighing instruments use weights as the test standard, and weights are divided into various grades, specifications and combinations. The corresponding weight groups are selected for measurement tests of measuring instruments with different accuracy levels. In addition, the above test process requires operators to repeatedly select weights for loading and obtain data. The operation is cumbersome and the preparation work before and after the test is large. For example, if the weight of the weight needs to be measured, the weights that are heavily worn after long-term use need to be screened out. Special tools such as tweezers are needed to hold the weights, resulting in a long test time. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a weighing instrument measurement test simulation weight loading device to solve the problems in the background technology.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions:

[0008] A device for loading simulated weights for measuring and testing a weighing instrument comprises a first column, a second column is mounted above the first column, an extension arm one is mounted on the side of the second column near the top, an extension arm two is arranged at the front end of the first extension arm, a knob sleeve is arranged at the bottom of the front end of the second extension arm, a limiting ring groove is preset on the outer periphery of the knob sleeve near the top, a limiting ring sleeve is sleeved in the limiting ring groove, the limiting ring sleeve is fixed to the bottom surface of the second extension arm at the corresponding position by bolts, a threaded screw rod is passed through the knob sleeve, a fixing plate is mounted at the bottom end of the screw rod, a pressure sensor is mounted on the bottom surface of the fixing plate, and two obliquely extending supporting legs are mounted at the bottom end of the first column.

[0009] Preferably, the first column is hollow, the bottom part of the second column is sleeved in the first column to form a socket fixation, a plurality of equally spaced adjustment holes are provided on the second column, and a pin is provided on the first column to pass through the corresponding adjustment holes to form a limit fixation between the second column and the first column.

[0010] Preferably, the extension arm 1 is hollow, and the rear end portion of the extension arm 2 extends into the extension arm 1 to form a sleeve connection and fixation.

[0011] Preferably, a sleeve is provided at the bottom end of the screw, and the fixing plate and the pressure sensor are both located in the sleeve. A base is provided at the bottom end of the sleeve, and the base is arranged directly below the pressure sensor. A plurality of evenly spaced through openings are preset on the base. A top cover is installed on the top of the sleeve, and an opening on the top cover is provided for the screw to pass through.

[0012] Preferably, an anti-collision baffle is installed on the bottom surface of the second extension arm facing the first extension arm on the side of the knob sleeve.

[0013] Preferably, the top surface of the supporting leg is provided with a limiting slide groove, a limiting slider is provided in the limiting slide groove, a stud extending out of the limiting slide groove is installed on the top surface of the limiting slider, a threaded sleeve is threadedly connected to the stud on the top surface of the supporting leg, and an industrial control integrated machine connected to the electrical signal of the pressure sensor is installed on the top bolt of the second column.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a weighing instrument measurement test simulation weight loading device, which has the following beneficial effects:

[0016] 1. The simulated weight loading device drives the pressure sensor to move by rotating the screw up and down. When the scale is placed horizontally, after the screw is lowered, the pressure value of the pressure sensor on its surface can be regarded as the weight applied to the scale. No weights are used and there is no wear consideration. At the same time, the way the screw rotates up and down is also convenient for operation. There is no need to change weights of different specifications each time, which facilitates the test operation and can shorten the time spent on the measurement test of the scale.

[0017] 2. The simulated weight loading device can adjust the height of the pressure sensor by adjusting the first column and the second column, so as to adapt to the use of weighing instruments with weighing platforms of different heights, thereby improving the flexibility of use.

[0018] 3. The simulated weight loading device further increases the extension distance of the pressure sensor by the nested arrangement of the extension arm 1 and the extension arm 2. Combined with the adjustment of the column 1 and the column 2, the pressure sensor can obtain a larger moving space, thereby adapting to the testing needs of more different types of weighing instruments.

[0019] 4. The simulated weight loading device can use the threaded sleeve to reach the base of the scale by setting a threaded sleeve on the supporting leg. It can also be used with a pressure sensor to press down the weighing platform, thereby obtaining a stable fixed relationship with the scale and ensuring a greater downward pressure capacity for the weighing platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is the appearance diagram of the utility model;

[0021] Figure 2 It is a cross-sectional view of the utility model;

[0022] Figure 3 It is an enlarged view of point A in the utility model;

[0023] Figure 4 It is an enlarged view of point B in the utility model;

[0024] Figure 5 It is a schematic diagram of the installation of the threaded sleeve in the utility model.

[0025] In the figure: 1. Column 1; 2. Column 2; 3. Latch; 4. Extension arm 1; 5. Extension arm 2; 6. Screw; 7. Knob sleeve; 8. Limit ring sleeve; 9. Limit ring groove; 10. Anti-collision baffle; 11. Sleeve; 12. Base; 13. Top cover; 14. Fixed plate; 15. Pressure sensor; 16. Through port; 17. Support leg; 18. Limit slider; 19. Limit slide groove; 20. Stud; 21. Threaded sleeve; 22. Adjustment socket; 23. Industrial control all-in-one machine. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] See also Figure 1-5 A weighing instrument measurement test simulation weight loading device, including a column 1, the column 1 is hollow, a column 2 is arranged above the column 1, the bottom part of the column 22 is sleeved in the column 1 to form a sleeve fixation, a plurality of equally spaced adjustment holes 22 are opened on the column 2, and a latch 3 is arranged on the column 1 to pass through the corresponding position adjustment holes 22 to form a limit fixation between the column 22 and the column 1, an extension arm 4 is welded and installed on the side of the column 22 near the top position, the extension arm 4 is hollow, an extension arm 2 5 is arranged at the front end of the extension arm 4, and the rear end part of the extension arm 25 extends into the extension arm 4 to form a sleeve fixation;

[0028] A knob sleeve 7 is provided at the bottom position of the front end of the extension arm 2 5, a limit ring groove 9 is preset at the top position of the outer periphery of the knob sleeve 7, a limit ring sleeve 8 is sleeved in the limit ring groove 9, and the limit ring sleeve 8 is fixed to the bottom surface of the extension arm 2 5 at the corresponding position by bolts, a screw rod 6 connected by a thread is passed through the knob sleeve 7, and the bottom surface of the extension arm 2 5 at the corresponding position is opened for the screw rod 6 to pass through, a fixing plate 14 is welded and installed at the bottom end of the screw 6, and a pressure sensor 15 is bolted to the bottom surface of the fixing plate 14;

[0029] A sleeve 11 is provided at the bottom end of the screw rod 6, and a fixing plate 14 and a pressure sensor 15 are both located in the sleeve 11. A base 12 is preset at the bottom end of the sleeve 11, and the base 12 is arranged directly below the pressure sensor 15. A plurality of uniform through holes 16 are preset on the base 12. A top cover 13 is installed on the top bolt of the sleeve 11. An opening on the top cover 13 is provided for the screw rod 6 to pass through. The opening diameter is larger than the diameter of the screw rod 6 and smaller than the diameter of the fixing plate 14. An anti-collision baffle 10 is welded and installed on the bottom surface of the extension arm 2 5 of the side of the knob sleeve 7 facing the extension arm 1 4 to prevent the knob sleeve 7 from being damaged by collision when the extension arm 2 5 is retracted during the transition;

[0030] Two obliquely extending supporting legs 17 are welded and installed at the bottom end of the column 1, and a limiting slide groove 19 is preset on the top surface of each supporting leg 17. A limiting slider 18 is arranged in the limiting slide groove 19. The limiting slider 18 and the limiting slide groove 19 are arranged in a T-shaped cross-section that cooperate with each other. A stud 20 extending out of the limiting slide groove 19 is welded and installed on the top surface of the limiting slider 18, and a threaded sleeve 21 is threadedly connected to the stud 20 on the top surface of the supporting leg 17. An industrial control integrated computer 23 is installed on the top bolt of the column 2 2, and the pressure sensor 15 is electrically connected to the industrial control integrated computer 23.

[0031] When in use, first place the scale to be tested horizontally and stably, then extend the supporting legs 17 under the scale, adjust the position so that the pressure sensor 15 can be located at the center of the load-bearing platform of the scale, first use the limiting sliding relationship between the limiting slider 18 and the limiting slide groove 19 to move the limiting slider 18 to move the threaded sleeve 21 to the bottom structure of the scale, such as the four sides of the platform scale, rotate the threaded sleeve 21 to make it abut against the four sides of the platform scale, and match the sleeve 11 on the top of the platform scale to form a fixation with the platform scale, then rotate the knob sleeve 7, and use the threaded connection relationship between the knob sleeve 7 and the screw 6 to drive the entire sleeve 11 to descend, so that the bottom surface of the base 12 touches the top surface of the load-bearing platform of the scale, and at the same time the pressure sensor 15 does not contact the base 12, at this time the industrial control integrated machine 23 is in position The value of the pressure sensor 15 should be 0, and the knob sleeve 7 is continuously turned to make the screw 6 continue to descend until the pressure sensor 15 contacts the base 12 and starts to generate readings. Since the scale is placed horizontally, the displayed value of the pressure sensor 15 can be regarded as the weight applied to the weighing platform of the scale. By continuing to turn the knob sleeve 7, the applied weight can be continuously increased, and the pressure value can be displayed by the industrial control integrated computer 23 to be arbitrarily adjusted to the required weight. For different heights or center points of the weighing platform, the height adjustable function can be obtained by adjusting the extended length of the column 2 on the column 1 and fixing it with the pin 3, and the length of the extension arm 25 in the extension arm 4 can also be pulled outward to increase the coverage to meet the use requirements of more different scales.

Claims

1. A device for loading simulated weights for measuring and testing a weighing instrument, comprising a column (1), characterized in that: A second column (2) is installed above the first column (1); an extension arm (4) is installed on the side of the second column (2) at a position close to the top; an extension arm (5) is provided at the front end of the first extension arm (4); a knob sleeve (7) is provided at the bottom of the front end of the second extension arm (5); a limit ring groove (9) is preset on the outer periphery of the knob sleeve (7) at a position close to the top; a limit ring sleeve (8) is sleeved inside the limit ring groove (9); the limit ring sleeve (8) is fixed to the bottom surface of the second extension arm (5) at a corresponding position by bolts; a screw rod (6) connected by a thread is inserted inside the knob sleeve (7); a fixing plate (14) is installed at the bottom end of the screw rod (6); a pressure sensor (15) is installed on the bottom surface of the fixing plate (14); and two obliquely extending support legs (17) are installed at the bottom end of the first column (1).

2. A weighing instrument measurement test simulation weight loading device according to claim 1, characterized in that: The first column (1) is hollow, the bottom part of the second column (2) is sleeved in the first column (1) to form a sleeve connection and fixation, the second column (2) is provided with a plurality of equally spaced adjustment holes (22), and the first column (1) is provided with a latch (3) that passes through the corresponding position adjustment holes (22) to form a limit fixation between the second column (2) and the first column (1).

3. A weighing instrument measurement test simulation weight loading device according to claim 2, characterized in that: The extension arm one (4) is hollow, and the rear end portion of the extension arm two (5) extends into the extension arm one (4) to form a sleeve connection and fixation.

4. The device for loading simulated weights for measuring and testing a weighing instrument according to claim 1, characterized in that: A sleeve (11) is provided at the bottom end of the screw rod (6), a fixing plate (14) and a pressure sensor (15) are both located in the sleeve (11), a base (12) is provided at the bottom end of the sleeve (11), the base (12) is arranged directly below the pressure sensor (15), a plurality of evenly spaced through openings (16) are preset on the base (12), a top cover (13) is installed at the top of the sleeve (11), and an opening on the top cover (13) is provided for the screw rod (6) to pass through.

5. A weighing instrument measurement test simulation weight loading device according to claim 4, characterized in that: An anti-collision baffle (10) is installed on the bottom surface of the second extension arm (5) facing the first extension arm (4) on the side of the knob sleeve (7).

6. The device for loading simulated weights for measuring and testing a weighing instrument according to claim 1, characterized in that: The top surface of the support leg (17) is provided with a limit slide groove (19), a limit slide block (18) is provided in the limit slide groove (19), a stud (20) extending out of the limit slide groove (19) is installed on the top surface of the limit slide block (18), a threaded sleeve (21) is threadedly connected to the stud (20) on the top surface of the support leg (17), and an industrial control integrated machine (23) connected to the electrical signal of the pressure sensor (15) is installed on the top bolt of the second column (2).

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