A measuring instrument inspection and detection device and method

Abstract

The present invention relates to the field of measuring instrument inspection, and in particular to a measuring instrument inspection and detection device and method, comprising a horizontally arranged installation panel, on which a limit unit for limiting and clamping the measuring instrument is arranged, and on which a detection unit for inspecting the measuring instrument is also arranged; when an aqueous solution is introduced into the measuring instrument to be inspected, the present invention converts the upward movement change of the liquid level of the aqueous solution in the measuring instrument to the position of a guide slider and an indicator block at a scale mark on a metering cylinder, thereby quickly and conveniently realizing the effect of inspecting and detecting the measuring instrument.

Description

Technical Field

[0001] The present invention relates to the field of measuring instrument inspection, and in particular to a measuring instrument inspection and detection device and method. Background Art

[0002] In the fields of chemical research, industrial production, environmental monitoring, etc., precise and accurate measurement and detection are the basis for ensuring data reliability and the validity of experimental results. Traditional measurement and detection methods often rely on cumbersome manual operations and complex analysis processes, which are not only time-consuming and labor-intensive, but also susceptible to human errors.

[0003] With the advancement of science and technology, technicians in related fields have also optimized the detection methods of measuring instruments. In order to make a more accurate comparison, for example, Chinese patent publication number CN114623894A discloses a chemical instrument measurement and detection device, including a base, a water storage tank, a micro submersible pump, a water flow sensor, a drain pipe and a water pipe fixing mechanism, etc. When in use, the volume of the aqueous solution after passing through the water flow sensor is calculated through the micro submersible pump, the water flow sensor and the PLC sensor, and then by checking the scale value of the aqueous solution level in the chemical instrument, it is convenient for the staff to detect the accuracy of the chemical instrument in measuring the aqueous solution.

[0004] However, when using the above-mentioned prior art to inspect chemical instruments, there are still the following problems:

[0005] The above-mentioned device uses a micro-submersible pump to transport the aqueous solution in the water tank through the drain pipe, the water flow sensor and the adjustable water pipe to the interior of the chemical metering instrument in sequence, and at the same time monitors the flow of the aqueous solution flowing through the interior through the water flow sensor, calculates the volume of the aqueous solution after passing through the water flow sensor, and then checks the scale value of the aqueous solution level in the chemical instrument to achieve the effect of inspecting the chemical metering instrument. However, when in use, since the water flow sensor is arranged between the chemical metering instrument and the water tank, after the aqueous solution is output through the micro-submersible pump, the volume of the aqueous solution calculated after monitoring by the water flow sensor at this time is actually the sum of the aqueous solutions remaining in the drain pipe and entering the metering instrument. Therefore, the data obtained after the measurement is greater than the actual volume of the metering instrument, thereby causing an error in the detection result.

[0006] Therefore, based on the above-stated viewpoint, there is still room for optimization of the existing technical means for testing chemical instruments. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a measuring instrument inspection and detection device, including a horizontally arranged installation panel, on which a limit unit for limiting and clamping the measuring instrument is arranged, and the installation panel is also provided with a detection unit for inspecting the measuring instrument.

[0008] The limit unit includes a bending plate arranged on the mounting panel, an active screw is passed through the vertical section of the bending plate, two threads in opposite directions are opened on the outer side of the active screw, at least two clamping plates are provided on the threaded sleeve of the active screw, which are used to clamp and limit the measuring instrument to be inspected, and a connecting slider inserted on the mounting panel is extended downward from the lower end of the clamping plate.

[0009] Preferably, the bending plate includes a limiting sleeve vertically arranged on the mounting panel, a bending pressure plate is slidably inserted in the limiting sleeve, a limiting pressure plate is arranged on the vertical section of the bending pressure plate, and a contraction spring is commonly arranged between the horizontal section of the bending pressure plate and the limiting pressure plate.

[0010] Preferably, a driven screw is passed through the vertical sections of the limiting pressure plate and the bending pressure plate, and two threads in opposite directions are opened on the outer side of the driven screw. At least two driven sliders are threadedly sleeved on the outer side of the driven screw, and the lower ends of the two driven sliders are symmetrically connected with arc-shaped locking blocks.

[0011] Preferably, the detection unit includes a water tank for storing water arranged on the installation panel, a micro water pump is arranged in the water tank, and a drain pipe is arranged at the output end of the micro water pump, which passes through the limit pressure plate and is inserted into the measuring instrument to be inspected, and is used to pass the water in the water tank into the measuring instrument for inspection. A limit sleeve connected to the bending pressure plate is provided on the drain pipe.

[0012] Preferably, the limit pressure plate is also penetrated by a telescopic tube, a piston block is connected to the limit position inside the telescopic tube, a floating plate is connected to the lower end of the telescopic tube, the upper end of the telescopic tube is connected to a connecting tube with a "U"-shaped structure, and the end of the connecting tube away from the telescopic tube is connected to a metering tube, and a number of scale marks are evenly arranged on the outer side of the metering tube and along its axial direction.

[0013] Preferably, the telescopic tube includes a sliding sleeve which is limitedly connected to the upper end of the limiting pressure plate and extends upward, and a vertical sliding rod connected to the floating plate and the piston block is slidably penetrated in the sliding sleeve, and the piston block and the floating plate are respectively located at two ends of the vertical sliding rod.

[0014] Preferably, a limit frame is provided at one end of the metering tube away from the connecting tube, a guide slider is slidably provided in the metering tube, and a return compression spring located in the metering tube is commonly provided between the opposite ends of the guide slider and the limit frame.

[0015] Preferably, a limit slide groove is provided on the metering tube, and an indicator block for use in conjunction with the scale mark is inserted into the limit slide groove.

[0016] Preferably, the guide slider is made of a material having a certain magnetic adsorption capability, and the indicator block is correspondingly configured to be made of a metal material that allows the guide slider to be magnetically adsorbed.

[0017] In addition, the present invention also provides a measuring instrument inspection and detection method, comprising the following steps:

[0018] S1: Test preparation; place the measuring instrument to be tested on the two clamping plates, drive the active screw to rotate, drive the two clamping plates on the active screw to perform preliminary limit clamping on the lower end of the measuring instrument, drive the active screw to rotate and drive the driven screw to rotate synchronously, thereby driving the two driven sliders and the clamping block on the driven screw to limit clamp the upper side of the measuring instrument.

[0019] S2: Positioning and clamping; after the measuring instrument is clamped by the clamping plate, the upper end surface of the measuring instrument is pressed by the limit pressure plate, thereby further improving the stability of the measuring instrument after the limit clamping.

[0020] S3: Inspection and testing: after completing the positioning and clamping of the measuring instrument, the measuring instrument is inspected by the detection unit.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. The present invention converts the upward movement of the liquid level of the aqueous solution in the measuring instrument into the position of the guide slider and the indicator block at the scale mark on the measuring cylinder when the aqueous solution is introduced into the measuring instrument to be tested, thereby quickly and conveniently achieving the effect of inspecting and testing the measuring instrument.

[0023] 2. The present invention drives the active screw and the driven screw to rotate, driving the clamping plate, the clamping block, the arc-shaped clamping block and the arc-shaped abutment block to perform multi-level positioning and clamping on the measuring instrument to be tested, thereby improving the stability of the measuring instrument when testing the measuring instrument, and avoiding the problem of the measuring instrument being deviated by external interference, thereby causing errors in the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is a structural schematic diagram of the limiting unit of the present invention.

[0027] Figure 3 The present invention Figure 2 A is an enlarged view of the middle image.

[0028] Figure 4 It is a structural schematic diagram of the driven screw and the active screw of the present invention.

[0029] Figure 5 It is a cross-sectional view of the limiting pressing plate of the present invention.

[0030] Figure 6 The present invention Figure 5 Enlarged view of B.

[0031] Figure 7 It is a structural schematic diagram of the connecting pipe of the present invention.

[0032] Figure 8 The present invention Figure 7 Enlarged view of C in the middle.

[0033] Fig. 9 It is a structural schematic diagram of the clamping unit of the present invention.

[0034] Fig.10 It is a structural schematic diagram of the arc-shaped stop block of the present invention.

[0035] In the figure, 1, installation panel; 2, limiting unit; 20, bending plate; 200, limiting sleeve; 201, bending pressure plate; 202, limiting pressure plate; 203, contraction spring; 21, active screw; 22, clamping plate; 23, connecting slider; 24, driven screw; 240, driven slider; 241, tightening block; 3, detection unit; 30, water storage tank; 31, micro water pump; 32, drain pipe; 33, limiting sleeve; 34, telescopic pipe; 340, sliding sleeve; 341, guide sleeve; 342, vertical slide rod; 35, piston block; 36, floating plate; 37, connecting pipe; 38, metering tube; 380, scale mark; 381, limit frame plate; 382, ​​guide slider; 383, reset spring; 384, indicator block; 4, clamping unit; 40, support rod; 41, arc-shaped clamping block; 42, passive slider; 43, arc-shaped stop block; 44, thread segment one; 45, thread segment two. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1 To Attachment Fig.10 While embodiments of the invention have been described in detail, the invention can be implemented in many different ways as defined and covered by the claims.

[0037] The embodiments of the present application disclose a measuring instrument inspection and detection device and method, which illustrate that the measuring instrument inspection and detection device and method are mainly used in the process of inspecting the measuring instrument, and technically achieve the effect of inspecting the accuracy of the measuring instrument when it is used to measure the volume of the aqueous solution; in particular, during the inspection process, the liquid level of the aqueous solution introduced into the measuring container to be inspected is converted into the position in the connecting pipe and the measuring pipe through the floating plate, the piston block and the connecting pipe, so as to facilitate the staff to observe and inspect; and, the measuring instrument inspection and detection device also positions and clamps the measuring container, and through the multi-level positioning of the measuring instrument, effectively improves the stability of the measuring instrument when being inspected, thereby improving the accuracy of the detection result after the inspection of the measuring instrument.

[0038] Example 1: Reference Figure 1 As shown, a measuring instrument inspection and testing device comprises an installation panel 1, a limit unit 2 and a detection unit 3. The installation panel 1 is horizontally arranged, and the limit unit 2 for limiting and clamping the measuring instrument is arranged on the installation panel 1. The detection unit 3 for inspecting the measuring instrument is also arranged on the installation panel 1. When in use, the measuring instrument to be inspected is firstly limited and clamped by the limit unit 2, and then the measuring instrument is inspected and tested by the detection unit 3, so as to achieve the effect of inspecting the measuring instrument.

[0039] Reference Figure 2 and Figure 3 As shown, a limit unit 2 is used for limiting and clamping a measuring instrument; specifically, the limit unit 2 includes a bending plate 20, an active screw 21, a clamping plate 22 and a connecting slider 23. A bending plate 20 is provided on the mounting panel 1, and an active screw 21 is passed through the vertical section of the bending plate 20. Two threads in opposite directions are provided on the outer side of the active screw 21. At least two clamping plates 22 are threadedly sleeved on the active screw 21 for clamping and limiting the measuring instrument to be inspected. A connecting slider 23 inserted on the mounting panel 1 is extended downward from the lower end of the clamping plate 22.

[0040] When in use, by driving the active screw 21 to rotate forward, the two clamping plates 22 slide towards each other through the threads on the active screw 21, and the movement of the clamping plates 22 drives the connected connecting slider 23 to slide on the mounting panel 1. The mounting panel 1 is used to limit the movement path of the connecting slider 23 and the clamping plates 22 to prevent the clamping plates 22 from being driven by the active screw 21 to flip over. After the two clamping plates 22 move to the two sides of the measuring instrument to be inspected and contact the outer side of the measuring instrument, the active screw 21 is continued to be driven to rotate forward, which drives the two clamping plates 22 to continue to approach the measuring instrument, thereby achieving the effect of tightening the measuring instrument.

[0041] Furthermore, in order to more easily position and tighten the measuring instrument, an arc-shaped positioning groove is provided on the side where the two clamping plates 22 are close to each other. When in use, the clamping plate 22 is moved to synchronously drive the positioning groove to move until the outer side surface of the lower end of the measuring instrument is inserted into the positioning groove, thereby achieving the effect of positioning and clamping the measuring instrument.

[0042] Reference Figure 2 As shown, the bending plate 20 includes a limiting sleeve 200 vertically arranged on the mounting panel 1, a bending pressure plate 201 is slidably inserted in the limiting sleeve 200, a limiting pressure plate 202 is horizontally arranged on the vertical section of the bending pressure plate 201, and a contraction spring 203 is arranged between the horizontal section of the bending pressure plate 201 and the limiting pressure plate 202.

[0043] When in use, first move the bending pressure plate 201 upward along the limiting sleeve 200, and then drive the measuring instrument to be tested to be placed in the positioning grooves on the two clamping plates 22 and located at the lower side of the horizontal section of the bending pressure plate 201. The upward movement of the bending pressure plate 201 drives the connected contraction spring 203 to be stretched. After the placement of the measuring instrument is completed, release the driving force that drives the bending pressure plate 201 to move upward. The contraction spring 203 needs to be restored to a normal extended state due to being stretched, and drives the bending pressure plate 201 to reset and move downward until the horizontal section of the bending pressure plate 201 is pressed against the upper end of the measuring instrument to be tested, thereby achieving further limit clamping of the measuring instrument to be tested.

[0044] Reference Figures 2 to 6 As shown, a driven screw 24 is commonly passed through the vertical sections of the limiting pressure plate 202 and the bending pressure plate 201, and two threads in opposite directions are provided on the outer side surface of the driven screw 24. At least two driven sliders 240 are threadedly sleeved on the outer side surface of the driven screw 24, and arc-shaped tightening blocks 241 are symmetrically connected to the opposite sides of the two driven sliders 240.

[0045] When in use, by driving the driven screw 24 to rotate, the driven slider 240 slides towards each other through the thread on the driven screw 24, and the movement of the driven slider 240 drives the connected clamping block 241 to move until the two clamping blocks 241 are pressed against the outer surface of the measuring instrument to be tested, thereby completing the effect of limiting and clamping the upper side of the measuring instrument.

[0046] Furthermore, as an optional embodiment, synchronous pulleys are sleeved on one end of the driven screw 24 and the active screw 21 that pass through the bending plate 20. The two synchronous pulleys are rotatably connected to the limiting sleeve 200 and the bending pressure plate 201 respectively. The two synchronous pulleys are connected by a synchronous belt transmission. The synchronous rotation effect between the driven screw 24 and the active screw 21 is achieved through the rotation of the synchronous belt and the two synchronous pulleys. At the same time, correspondingly, since the bending plate 20 slides and retracts in the vertical direction, passive rotating blocks for tightening the synchronous belt are symmetrically arranged on the outside of the synchronous belt and corresponding to the positions of the two synchronous pulleys. Another passive rotating block for tightening the synchronous belt is also provided on the inner side of the synchronous belt. All the passive rotating blocks located on the inner and outer sides of the synchronous belt are distributed in an isosceles triangle shape. The lower end of the passive rotating block located on the inner side of the synchronous belt is rotatably provided with a rectangular block slidably inserted on the limiting sleeve 200. The rectangular block is provided with a spring push rod connected to the limiting sleeve 200. It should be noted that the spring push rod is always kept in a compressed state, so that there is always a driving force to push the connected rectangular blocks to move away from the two synchronous pulleys, so that the synchronous belt is always attached to the synchronous pulley, thereby maintaining the synchronous rotation state of the driven screw 24 and the active screw 21.

[0047] Reference Figure 5 and Figure 6 As shown, the detection unit 3 is used to inspect the measuring instrument; specifically, the detection unit 3 includes a water tank 30, a micro water pump 31, a drain pipe 32 and a limit sleeve 33. The installation panel 1 is provided with a water tank 30 for storing water, and the water tank 30 is provided with a micro water pump 31. The output end of the micro water pump 31 is provided with a drain pipe 32 that penetrates the limit pressure plate 202 and is inserted into the measuring instrument to be inspected, which is used to pass the water in the water tank 30 into the measuring instrument for inspection. The drain pipe 32 is provided with a limit sleeve 33 connected to the bending pressure plate 201.

[0048] When in use, water in the water storage tank 30 is extracted by the micro water pump 31, and the extracted water is introduced into the metering instrument to be tested through the drain pipe 32, and the volume of the aqueous solution entering the instrument after extraction is preliminarily read by the metering instrument.

[0049] Reference Figures 6 to 8 As shown, a telescopic tube 34 is also passed through the limit pressure plate 202, and a piston block 35 is connected to the telescopic tube 34 for limiting position. The lower end of the telescopic tube 34 is connected to a floating plate 36, and the upper end of the telescopic tube 34 is connected to a connecting tube 37 with a "U"-shaped structure. The end of the connecting tube 37 away from the telescopic tube 34 is connected to a metering tube 38, and a plurality of scale marks 380 are evenly arranged on the outer side surface of the metering tube 38 and along its axial direction.

[0050] Reference Figures 6 to 8As shown, the telescopic tube 34 includes a sliding sleeve 340 which is limitedly connected to the upper end of the limiting pressure plate 202 and extends upward. The outer side surface of the sliding sleeve 340 is slidably sleeved with a guide sleeve 341 which is connected to the connecting pipe 37. A vertical sliding rod 342 which is slidably penetrated through the sliding sleeve 340 and is connected to the floating plate 36 and the piston block 35. The piston block 35 and the floating plate 36 are respectively located at the two ends of the vertical sliding rod 342.

[0051] When in use, after the limit pressure plate 202 is moved to the upper end of the metering instrument to be tested, the limit pressure plate 202 moves and drives the sliding sleeve 340, the vertical sliding rod 342, the floating plate 36 and the drain pipe 32 to move, so that the vertical sliding rod 342, the floating plate 36 and the drain pipe 32 are inserted into the metering instrument to be tested, and then the aqueous solution is injected into the metering instrument to be tested through the micro water pump 31 and the drain pipe 32. Due to the continuous injection of the aqueous solution, the water level in the metering instrument also rises accordingly, and the buoyancy of the water in the metering instrument continuously pushes the floating plate 36 to float up. The floating of the floating plate 36 drives the vertical sliding rod 342 and the piston block 35 to continuously move upward along the inner wall of the sliding sleeve 340, and the piston block 35 moves in the telescopic tube 34 to push the gas located on the upper side of the piston block 35 in the telescopic tube 34, thereby pushing the liquid level in the connecting tube 37 to synchronously shift in the vertical direction.

[0052] When the liquid in the connecting tube 37 moves into the connected measuring tube 38, the position of the scale mark 380 on the measuring tube 38 is the volume of the aqueous solution stored in the measured instrument at this time. By comparing the scale mark 380 indicated by the liquid surface in the measuring instrument at this time with the scale mark 380 indicated in the measuring instrument, the effect of inspecting the measured instrument can be completed.

[0053] Reference Figure 7 and Figure 8 As shown, a limit frame plate 381 is provided at one end of the metering tube 38 away from the connecting tube 37, a guide slider 382 is slidably arranged in the metering tube 38, and a return spring 383 located in the metering tube 38 is provided between the opposite ends of the guide slider 382 and the limit frame plate 381. When in use, after the piston block 35 pushes the liquid in the connecting tube 37 to shift into the metering tube 38, the liquid contacts the guide slider 382 and pushes the guide slider 382 to slide along the inner wall of the metering tube 38 in the direction away from the connecting tube 37, and the movement of the guide slider 382 causes the return spring 383 in the metering tube 38 to be compressed, so that after the inspection of the metering instrument is completed, the guide slider 382 is driven by the connected return spring 383 to return to its original position, and the movement of the guide slider 382 pushes the liquid level in the connecting tube 37 to return to its original position.

[0054] Reference Figure 7 and Figure 8As shown, a limiting slide groove is opened on the metering tube 38 and is located in the middle of all the scale marks 380. An indicating block 384 is inserted in the limiting slide groove. The sliding path of the indicating block 384 is limited by the limiting slide groove. The scale mark 380 indicated by the indicating block 384 on the metering tube 38 is the volume of the aqueous solution stored in the metering instrument at this time.

[0055] Reference Figure 7 and Figure 8 As shown, the guide slider 382 is made of a material having a certain magnetic adsorption capability, and the indicator block 384 is also correspondingly configured to be a metal material that allows the guide slider 382 to be magnetically adsorbed.

[0056] During use, after the aqueous solution in the connecting tube 37 is pushed into the metering tube 38, the guide slider 382 of the metering tube 38 is pushed to slide in the direction away from the connecting tube 37. Due to the magnetic adsorption of the guide slider 382 on the indicator block 384, the movement of the guide slider 382 also synchronously drives the indicator block 384 to slide along the inner wall of the limiting slide groove. The sliding position of the indicator block 384 indicates the position of the scale mark 380, which makes it more convenient for the staff to read the scale mark 380 entering the metering tube 38, thereby improving the efficiency of the staff in inspecting the measuring instrument.

[0057] Example 2: Reference Fig. 9 and Fig.10 As shown, on the basis of Example 1, in order to improve the stability of the measuring instrument to be tested when clamped, so as to avoid the problem that the measuring instrument is driven by external force to cause deviation in the test result when the measuring instrument is inspected, a clamping unit 4 for further limiting and tightening the measuring instrument is further provided on the clamping plate 22 and the limiting pressure plate 202. Specifically, the clamping unit 4 includes a support rod 40, an arc-shaped clamping block 41, a passive slider 42 and an arc-shaped clamping block 43. At least two support rods 40 are symmetrically arranged on the clamping plate 22, and the upper ends of the two support rods 40 on the same clamping plate 22 are jointly provided with an arc-shaped clamping block 41 to limit and clamp the measuring instrument after being clamped and limited by the clamping plate 22 and the clamping block 241; at least two passive sliders 42 are also threadedly penetrated on the driven screw 24 and are located between the two driven sliders 240, and the lower ends of the two passive sliders 42 are symmetrically connected with an arc-shaped clamping block 43 corresponding to and concentric with the clamping block 241.

[0058] Furthermore, the driven screw 24 includes at least two thread segments 1 44 and thread segments 2 45 symmetrically opened on its outer side surface, the two thread segments 1 44 and thread segments 2 45 are alternately arranged, and the threads of adjacent thread segments 1 44 and thread segments 2 45 are oppositely arranged, and the driven slider 240 and the passive slider 42 are respectively located on the thread segment 1 44 and thread segment 2 45 and are respectively driven by the thread segment 1 44 and thread segment 2 45.

[0059] It should be noted that during use, when the limit pressure plate 202 is driven to press against the upper end of the measuring instrument to be tested, the two arc-shaped abutment blocks 43 are also synchronously inserted into the measuring instrument, and the two abutment blocks 241 are simultaneously located on the outer side of the measuring instrument, and the abutment blocks 241 and the arc-shaped clamping blocks 41 clamp the measuring instrument in the middle.

[0060] When in use, by driving the driven screw 24 to rotate forward, the adjacent driven slider 240 and passive slider 42 approach each other through the direction in which the thread segment 1 44 and the thread segment 2 45 approach each other, and the driven slider 240 and the passive slider 42 move to drive the connected clamping block 241 and the arc-shaped clamping block 43 to approach each other synchronously, until the clamping block 241 and the arc-shaped clamping block 43 are simultaneously clamped on the outer side surface and the inner side wall of the measuring instrument with detection, thereby achieving further limiting and fixing of the measuring instrument.

[0061] After synchronously driving the active screw 21 to rotate forward, the two clamping plates 22 move toward each other through the threads on the active screw 21, and drive the support rod 40 and the arc-shaped block 41 connected thereto to synchronously slide toward each other, until the two clamping plates and the arc-shaped block 41 both abut against the outer surface of the measuring instrument to be detected, thereby achieving the effect of limiting the measuring instrument. By limiting the different heights on the measuring instrument to be detected accordingly, the stability of the measuring instrument during detection is improved, so as to avoid the problem that the measuring instrument to be detected is driven by external force to tilt and shake, thereby affecting the accuracy of the detection result when the measuring instrument is detected.

[0062] In addition, the present invention also provides a measuring instrument inspection and detection method, comprising the following steps:

[0063] S1: Inspection preparation; the measuring instrument to be inspected is placed on the two clamping plates 22, and the active screw 21 is driven to rotate, so that the two clamping plates 22 on the active screw 21 are driven to perform preliminary limit clamping on the lower end of the measuring instrument, and the active screw 21 is driven to rotate while the driven screw 24 is driven to rotate synchronously, so that the two driven sliders 240 and the abutting block 241 on the driven screw 24 are driven to limit clamp the upper side of the measuring instrument.

[0064] S2: Positioning and clamping; after the measuring instrument is clamped by the clamping plate 22, the upper end surface of the measuring instrument is pressed by the limiting pressure plate 202, thereby further improving the stability of the measuring instrument after the limiting clamping.

[0065] S3: Inspection and testing, after completing the positioning and clamping of the measuring instrument, the measuring instrument is inspected by the detection unit 3. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A measuring instrument inspection and detection device, comprising a horizontally arranged mounting panel (1), characterized in that: The installation panel (1) is provided with a limit unit (2) for limiting and clamping the measuring instrument, and the installation panel (1) is also provided with a detection unit (3) for inspecting the measuring instrument, wherein: The limiting unit (2) comprises a bending plate (20) arranged on the mounting panel (1), an active screw rod (21) is passed through the vertical section of the bending plate (20), two threads in opposite directions are opened on the outer side of the active screw rod (21), at least two clamping plates (22) are threadedly sleeved on the active screw rod (21) for clamping and limiting the measuring instrument to be inspected, and a connecting slider (23) is extended downward from the lower end of the clamping plate (22) and inserted into the mounting panel (1).

2. A measuring instrument inspection and detection device according to claim 1, characterized in that: The bending plate (20) comprises a limiting sleeve (200) vertically arranged on the mounting panel (1), a bending pressure plate (201) is slidably inserted in the limiting sleeve (200), a limiting pressure plate (202) is arranged on the vertical section of the bending pressure plate (201), and a contraction spring (203) is commonly arranged between the horizontal section of the bending pressure plate (201) and the limiting pressure plate (202).

3. A measuring instrument inspection and detection device according to claim 2, characterized in that: A driven screw rod (24) is provided between the vertical sections of the limiting pressure plate (202) and the bending pressure plate (201), and two threads in opposite directions are provided on the outer side surface of the driven screw rod (24). At least two driven sliders (240) are threadedly sleeved on the outer side surface of the driven screw rod (24), and the lower ends of the two driven sliders (240) are symmetrically connected with arc-shaped locking blocks (241).

4. A measuring instrument inspection and detection device according to claim 1, characterized in that: The detection unit (3) comprises a water storage tank (30) for storing water arranged on the installation panel (1), a micro water pump (31) being arranged in the water storage tank (30), and a drainage pipe (32) penetrating through a limiting pressure plate (202) and then inserted into the metering instrument to be inspected being arranged at the output end of the micro water pump (31), for passing the water in the water storage tank (30) into the metering instrument for inspection, and a limiting sleeve (33) connected to the bending pressure plate (201) being sleeved on the drainage pipe (32).

5. A measuring instrument inspection and detection device according to claim 4, characterized in that: The limit pressure plate (202) is also provided with a telescopic tube (34), the inner limit of the telescopic tube (34) is connected with a piston block (35), the lower end of the telescopic tube (34) is connected with a floating plate (36), the upper end of the telescopic tube (34) is connected with a connecting tube (37) with a "U"-shaped structure, the end of the connecting tube (37) away from the telescopic tube (34) is connected with a metering tube (38), and a plurality of scale marks (380) are evenly arranged on the outer side surface of the metering tube (38) and along the axial direction thereof.

6. A measuring instrument inspection and detection device according to claim 5, characterized in that: The telescopic tube (34) comprises a sliding sleeve (340) which is limit-connected to the upper end of the limit pressure plate (202) and extends upward. A vertical sliding rod (342) which is connected to the floating plate (36) and the piston block (35) is slidably penetrated in the sliding sleeve (340). The piston block (35) and the floating plate (36) are respectively located at two ends of the vertical sliding rod (342).

7. A measuring instrument inspection and detection device according to claim 5, characterized in that: A limit frame plate (381) is arranged at one end of the metering tube (38) away from the connecting tube (37), a guide slider (382) is slidably arranged inside the metering tube (38), and a return compression spring (383) located inside the metering tube (38) is arranged between the opposite ends of the guide slider (382) and the limit frame plate (381).

8. A measuring instrument inspection and detection device according to claim 7, characterized in that: The metering tube (38) is provided with a limit sliding groove, and an indicating block (384) for use in conjunction with the scale mark (380) is inserted into the limit sliding groove.

9. A measuring instrument inspection and detection device according to claim 8, characterized in that: The guide slider (382) is made of a material having a certain magnetic adsorption capability, and the indicator block (384) is also correspondingly configured to be made of a metal material that allows the guide slider (382) to be magnetically adsorbed.

10. A measuring instrument inspection and detection method, comprising a measuring instrument inspection and detection device according to any one of claims 1 to 9, characterized in that: The detection method includes the following steps: S1: Testing preparation; placing the measuring instrument to be tested on the two clamping plates (22), driving the active screw (21) to rotate, driving the two clamping plates (22) on the active screw (21) to initially limit and clamp the lower end of the measuring instrument, driving the active screw (21) to rotate and driving the driven screw (24) to rotate synchronously, thereby driving the two driven sliders (240) and the abutting block (241) on the driven screw (24) to limit and clamp the upper side of the measuring instrument; S2: Positioning and clamping; after the measuring instrument is clamped by the clamping plate (22), the upper end surface of the measuring instrument is pressed by the limiting pressure plate (202), thereby further improving the stability of the measuring instrument after the limiting clamping; S3: Inspection and testing: After completing the positioning and clamping of the measuring instrument, the measuring instrument is inspected by the inspection unit (3).

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