Non-magnetic water meter calibration device

Abstract

The utility model provides a non-magnetic water meter calibration device, and belongs to the technical field of non-magnetic water meters. Comprising a verification machine body, a top cover is detachably fixed to the top of the verification machine body, two connecting rods are rotatably installed at the midpoint of the upper end face of the top cover, the two connecting rods both extend to the edge of the top cover and are fixedly provided with a C-shaped limiting frame with an outward opening, two clamping plates capable of moving in a mirror image mode are arranged in the C-shaped limiting frame, and a disc is rotatably installed at the top of the verification machine body; the disc is located on the lower end face of the top cover, and a semicircular damping metal patch is fixed to the upper surface of the disc. According to the utility model, the electronic module in the non-magnetic water meter to be detected can be verified and detected, so that a worker can conveniently judge whether the electronic module of the non-magnetic water meter is qualified or not so as to determine the disqualification reason of the non-magnetic water meter, and LC sensors to be detected with different specifications can be conveniently clamped and fixed by the device, so that the universality of the device can be effectively improved; the use effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of non-magnetic water meters, in particular to a non-magnetic water meter calibration device. Background Art

[0002] A non-magnetic water meter is a smart water meter that uses electronic sensors to detect water flow. It uses non-magnetic signal detection technology to read the flow meter impeller rotation number signal. When non-magnetic water meters are mass-produced, the qualification of the product can generally only be tested and identified after the entire electronic module and mechanical part of the non-magnetic water meter are fully assembled. Once there is inaccurate water metering, maintenance personnel cannot quickly and accurately find the cause of the problem. It is difficult to attribute the cause of the problem to the mechanical part or the electronic module part. Often, the entire non-magnetic water meter can only be regarded as a substandard product, resulting in a waste of resources.

[0003] Traditionally, a Chinese patent with a publication number of CN201397184Y discloses a device for testing the water metering performance of an electronic module in a non-magnetic water meter, including a shell, a stepper motor and a signal processing circuit are arranged in the shell, a disc is connected to the rotor of the stepper motor, a metal patch is arranged on the upper surface of the disc, and two grooves are arranged on the shell above the disc. The advantage is that an insulating disc is arranged on the rotor of the stepper motor, a metal patch is arranged on the upper surface of the disc, and two grooves for placing the LC sensor of the electronic module to be tested are arranged above the disc.

[0004] However, the design of this groove limits the applicability of LC sensors of different sizes or types. If the size of the LC sensor of the electronic module under test does not match the groove, effective testing cannot be performed. Especially with the advancement of technology, the LC sensors of electronic modules in non-magnetic water meters are becoming more and more diversified. Therefore, this traditional calibration device has great limitations and is difficult to meet the calibration work of non-magnetic water meters of various models and specifications today.

[0005] Therefore, the present application provides a non-magnetic water meter calibration device to solve the above technical problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a non-magnetic water meter calibration device to solve the problem that when the electromagnetic module detection device in the non-magnetic water meter of the existing technology fixes the LC sensor through a groove, there are great limitations and it is difficult to meet the calibration work of non-magnetic water meters of various models and specifications.

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

[0008] A non-magnetic water meter calibration device, comprising a calibration body, a top cover detachably fixed on the top of the calibration body, two connecting rods rotatably mounted on the midpoint of the upper end surface of the top cover, both connecting rods extend to the edge of the top cover, and a C-shaped limit frame with an outward opening is fixed, two clamping plates that can move in a mirroring manner are arranged in the C-shaped limit frame, and a disc is rotatably mounted on the top of the calibration body, the disc is located on the lower end surface of the top cover, and a semicircular damping metal patch is fixed on the upper surface of the disc;

[0009] A limiting groove is provided on the middle inner wall of the C-shaped limiting frame, and sliders are fixed at the ends of the two clamping plates and are slidably embedded in the limiting grooves, and a screw rod with threads passing through the slider rod is rotatably installed in the limiting groove, and two opposite thread sections are symmetrically constructed on the screw rod, which pass through the two sliders respectively.

[0010] Optionally, a motor is provided in the verification body, the shaft of the motor passes through the middle of the upper end surface of the verification body and is fixed to the center of the lower end surface of the disc, and a control panel is installed on the outer side of the verification body.

[0011] Optionally, a threaded portion is formed on the top outer edge surface of the verification body and is fixedly matched with the bottom thread of the verification body.

[0012] Optionally, a plurality of positioning holes are formed around the upper end surface of the top cover, and a positioning bolt is provided on the connecting rod. The positioning bolt passes through the connecting rod and is plugged and fixed into the positioning hole.

[0013] Optionally, one end of the screw rod extends out of the outside of the C-shaped limiting frame and is fixed with a screw cap.

[0014] Optionally, a screw hole is opened in the middle of the sliding block, and the screw hole is used for the threaded section of the screw rod to pass through.

[0015] Optionally, a fixing groove is provided on one side of the two clamping plates facing each other, a fixing hole is provided at one end of the fixing groove, and a wear-resistant plate is provided in the fixing groove, a plug-in plate is fixed at one end of the wear-resistant plate, and the plug-in plate is inserted into the fixing hole to be fixed.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the above scheme, thanks to the cooperation of the top cover, connecting rod, C-shaped limit frame and clamping plate, the LC sensor of the electronic module in the non-magnetic water meter to be tested can be placed in the C-shaped limit frame, and then the two clamping plates are controlled to move toward each other by rotating the screw, so as to clamp and fix the LC sensor of the electronic module in the non-magnetic water meter to be tested. Compared with the groove design in the prior art, this device can fix LC sensors of different specifications, has strong versatility and good use effect.

[0018] At the same time, thanks to the setting of the connecting rod and positioning bolts on the top cover, the two connecting rods can be set at different angles through the positioning bolts, so that during verification and testing, multiple verification experiments at various angles can be carried out, which can improve the verification effect.

[0019] In summary, the device can not only calibrate and detect the electronic module in the non-magnetic water meter to be tested, so that the staff can judge whether the electronic module of the non-magnetic water meter is qualified and determine the reason for the failure of the non-magnetic water meter, but also the device is convenient for clamping and fixing the LC sensors to be tested of different specifications, thereby effectively improving the versatility of the device and achieving good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present invention and, together with the description, further serve to explain the principles of the present invention and enable those skilled in the relevant art to make and use the present invention.

[0021] Figure 1 It is a structural schematic diagram of a non-magnetic water meter calibration device;

[0022] Figure 2 For non-magnetic water meter calibration device Figure 1 A magnified schematic diagram of the structure at center A;

[0023] Figure 3 A schematic diagram of the structural disassembly of the clamping plate of the non-magnetic water meter calibration device;

[0024] Figure 4 It is a schematic diagram of the structure of the calibration body of the non-magnetic water meter calibration device.

[0025] [Reference Signs]

[0026] 1. Check the machine body; 101. Control panel; 102. Threaded part; 2. Top cover; 201. Positioning hole; 3. Connecting rod; 301. Positioning bolt; 4. C-shaped limit frame; 5. Limiting groove; 6. Clamping plate; 601. Slider; 602. Screw hole; 603. Fixing groove; 604. Fixing hole; 605. Wear-resistant plate; 606. Plug-in board; 7. Screw; 701. Tightening cap; 8. Disc; 9. Damping metal patch.

[0027] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0028] The following is a detailed description of a non-magnetic water meter calibration device provided by the utility model in combination with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the utility model.

[0029] It should be noted that the references to "one embodiment", "embodiment", "exemplary embodiments", "some embodiments" and the like in the specification indicate that the embodiments described may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when a specific feature, structure or characteristic is described in conjunction with an embodiment, it should be within the knowledge of a person skilled in the art to implement such feature, structure or characteristic in conjunction with other embodiments (whether or not explicitly described).

[0030] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0031] It is to be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0032] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0033] like Figure 1 , Figure 2 as well as Figure 4 As shown, an embodiment of the utility model provides a non-magnetic water meter calibration device, including a calibration body 1, and a top cover 2 is arranged on the top of the calibration body 1. Specifically, a threaded portion 102 is constructed on the top outer edge surface of the calibration body 1, and is fixed with the bottom thread of the calibration body 1, so that the top cover 2 can be detachably fixed to the top of the calibration body 1.

[0034] Two connecting rods 3 are rotatably mounted on the midpoint of the upper end face of the top cover 2. Both connecting rods 3 extend to the edge of the top cover 2 and are fixed with a C-shaped limit frame 4 opening outward. Two clamping plates 6 that can move in a mirror image are arranged in the C-shaped limit frame 4. A motor is arranged in the calibration body 1. The motor shaft passes through the middle of the upper end face of the calibration body 1 and is fixed with a disc 8. The center of the lower end face of the disc 8 is fixed to the top of the motor shaft. In addition, a control panel 101 is installed on the outside of the calibration body 1. The control panel 101 is provided with control buttons and a display screen, which can display the number of rotations of the disc 8 and the number of measurement circles of the electronic module LC in the non-magnetic water meter to be tested. In specific implementation, the disc 8 is located at the lower end face of the top cover 2, and a semicircular damping metal patch 9 is fixed on the upper surface of the disc 8.

[0035] Cooperate Figure 3 As shown, a limiting groove 5 is provided on the inner wall of the middle part of the C-shaped limiting frame 4, and a slider 601 is fixed at the ends of the two clamping plates 6 to slide and embed in the limiting groove 5, and a screw rod 7 with threads penetrating the slider 601 is rotatably installed in the limiting groove 5, and the screw rod 7 is symmetrically structured with two opposite thread segments, which respectively penetrate the corresponding screw holes 602 provided in the middle of the two sliders 601, so that the two clamping plates 6 can be driven to move toward or away from each other (i.e., mirror activity) by rotating the screw rod 7, so that the two clamping plates 6 can be used to clamp LC sensors of different specifications. One end of the screw rod 7 extends out of the outside of the C-shaped limiting frame 4, and is fixed with a screw cap 701, so that the screw rod 7 can be conveniently rotated by screwing the cap 701.

[0036] Meanwhile, the two clamping plates 6 are provided with a fixing groove 603 on one side facing each other, a fixing hole 604 is provided at one end of the fixing groove 603, and a wear-resistant plate 605 is provided in the fixing groove 603, a plug-in plate 606 is fixed at one end of the wear-resistant plate 605, and the plug-in plate 606 is inserted into the fixing hole 604 to be fixed. Therefore, the wear-resistant plate 605 can be detachably fixed to the side of the clamping plate 6 to directly contact the LC sensor. In specific implementation, the wear-resistant plate 605 can be selected from but not limited to rubber pads.

[0037] In addition, a plurality of positioning holes 201 are formed around the upper end surface of the top cover 2, and positioning bolts 301 are provided on the connecting rods 3, and the positioning bolts 301 pass through the connecting rods 3 and are plugged and fixed into the positioning holes 201. Therefore, the positions of the connecting rods 3 can be fixed by the positioning bolts 301, so that the angle between the two connecting rods 3 can be easily adjusted.

[0038] The working principle provided by the utility model is that the non-magnetic water meter calibration device, when in use, drives the disc 8 to drive the damping metal patch 9 to rotate by the motor in the calibration body 1 to simulate the rotation of the impeller, and cooperates with the C-shaped limit frame 4 to fix the LC sensor of the electronic module to be tested on the top cover 2, so that when the disc 8 drives the damping metal patch 9 to rotate to the bottom of the C-shaped limit frame 4, the LC sensor to be tested senses the rotation signal of the damping metal patch 9, and the number of rotations of the metal patch is obtained after being processed by the electronic module to be tested, and then the control panel 101 is used to display the motor and the measured number of rotations of the damping metal patch 9, so that the staff can obtain whether the water metering performance of the electronic module to be tested is intact by comparing the two numbers of rotations. When the water metering performance of the electronic module to be tested is inaccurate, the electronic module to be tested can be replaced or repaired, and there is no need to regard the entire non-magnetic water meter as a substandard product.

[0039] When performing the above-mentioned verification, the LC sensor of the electronic module in the non-magnetic water meter to be tested can be placed in the C-shaped limit frame 4, and then the two clamping plates 6 can be controlled to move toward each other by rotating the screw 7, so as to clamp and fix the LC sensor of the electronic module in the non-magnetic water meter to be tested. Compared with the groove design in the prior art, this device can fix LC sensors of different specifications, has strong versatility, and good use effect.

[0040] In addition, during verification, the two connecting rods 3 can be set at different angles by using the positioning bolts 301, so that during verification and testing, multiple verification experiments at various angles can be performed, which can improve the verification effect.

[0041] In summary, the device can not only improve the calibration and detection of the LC sensor of the electronic module in the non-magnetic water meter to be tested, so that the staff can judge whether the electronic module of the non-magnetic water meter is qualified and determine the reason for the failure of the non-magnetic water meter, but also the device is convenient for clamping and fixing the LC sensors to be tested of different specifications, thereby effectively improving the versatility of the device and achieving good use effect.

[0042] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, and those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A non-magnetic water meter calibration device, comprising a calibration body (1), characterized in that: A top cover (2) is detachably fixed on the top of the verification body (1), and two connecting rods (3) are rotatably mounted on the midpoint of the upper end surface of the top cover (2), and the two connecting rods (3) both extend to the edge of the top cover (2) and are fixed with a C-shaped limit frame (4) with an outward opening, and two clamping plates (6) that can move in a mirror-like manner are arranged in the C-shaped limit frame (4), and a disc (8) is rotatably mounted on the top of the verification body (1), and the disc (8) is located on the lower end surface of the top cover (2), and a semicircular damping metal patch (9) is fixed on the upper surface of the disc (8); A limiting groove (5) is provided on the inner wall of the middle portion of the C-shaped limiting frame (4), and a slider (601) slidably embedded in the limiting groove (5) is fixed to the ends of the two clamping plates (6), and a screw rod (7) with a thread penetrating the slider (601) is rotatably installed in the limiting groove (5), and the screw rod (7) is symmetrically structured with two opposite thread sections, which respectively penetrate the two sliders (601).

2. The non-magnetic water meter calibration device according to claim 1, characterized in that: A motor is arranged in the calibration body (1), the shaft of the motor passes through the middle of the upper end surface of the calibration body (1) and is fixed to the center of the lower end surface of the disc (8), and a control panel (101) is installed on the outside of the calibration body (1).

3. The non-magnetic water meter calibration device according to claim 1, characterized in that: The top outer edge surface of the calibration body (1) is configured with a threaded portion (102) which cooperates and is fixed with the bottom thread of the calibration body (1).

4. The non-magnetic water meter calibration device according to claim 1, characterized in that: A plurality of positioning holes (201) are formed around the upper end surface of the top cover (2), and a positioning bolt (301) is provided on the connecting rod (3). The positioning bolt (301) passes through the connecting rod (3) and is plugged and fixed into the positioning hole (201).

5. The non-magnetic water meter calibration device according to claim 1, characterized in that: One end of the screw rod (7) extends out of the outside of the C-shaped limiting frame (4) and is fixed with a screw cap (701).

6. The non-magnetic water meter calibration device according to claim 1, characterized in that: A screw hole (602) is provided in the middle of the sliding block (601), and the screw hole (602) is used for the threaded section of the screw rod (7) to pass through.

7. The non-magnetic water meter calibration device according to claim 1, characterized in that: A fixing groove (603) is provided on one side of the two clamping plates (6) facing each other, a fixing hole (604) is provided at one end of the fixing groove (603), a wear-resistant plate (605) is provided in the fixing groove (603), a plug-in plate (606) is fixed at one end of the wear-resistant plate (605), and the plug-in plate (606) is inserted into the fixing hole (604) to be fixed.

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