Clamping device for metrological verification of cold water meter

Abstract

The utility model belongs to the technical field of water meter verification, and particularly relates to a clamping device for cold water meter metrological verification, which comprises a verification table and supporting columns, the supporting columns are fixedly connected to four corners of the lower side of the verification table, the left end and the right end of the upper side of the verification table are fixedly connected with fixing plates, and the upper ends of the interiors of the fixing plates are fixedly connected with detection pipelines. And a clamping mechanism is arranged at the upper end of the verification table. According to the clamping device for metrological verification of the cold water meter, when verification work of the cold water meter is carried out, a motor is started firstly, so that a sliding plate moves rightwards along the inner side of a rectangular frame to make contact with the rear end of the inner side of the rectangular frame, and at the moment, a circular groove body at the front end above the sliding plate moves to the position between detection pipelines; then the water meter to be detected is installed on the round groove body at the front end of the upper side of the sliding plate, meanwhile, the detection pipeline is connected with the pipelines at the two ends of the water meter, and after installation is completed, water is introduced into the water meter through the detection pipeline for verification work.

Description

TECHNICAL FIELD

[0001] The utility model relates to water meter calibration technical field, concretely is a kind of clamping device for cold water meter measurement calibration. BACKGROUND

[0002] Water meter can be divided into cold water meter and hot water meter according to medium temperature, and is widely used in tap water, heat, chemical industry and other industries, and water temperature 30 DEG C is its demarcation line cold water meter: medium lower limit temperature is 0 DEG C, upper limit temperature is 30 DEG C water meter, and in order to ensure the stable operation of water meter, the enterprise or measurement department of production water meter needs to perform performance calibration on water meter, but the existing cold water meter needs to be clamped and limited when being calibrated, to ensure the stability during calibration.

[0003] But the traditional water meter clamping device is generally simply clamped by using threaded structure when being used, and since lacking positioning function, staff needs to manually align water meter and then clamp, to ensure the connection of subsequent water meter and detection pipeline, which is obviously more troublesome.

[0004] As disclosed in Chinese patent CN222379169U, a kind of clamping device for cold water meter measurement calibration, in the process of using, it is connected by using magnetic limit mode, compared with the existing threaded connection mode, the whole limiting process and the process of removing limiting are relatively simple, in addition, by using rubber pad, not only can the stability after clamping be adjusted, but also can avoid the damage of water meter pipe body caused by hard clamping, and positioning mechanism is further provided before clamping and limiting, which can effectively facilitate staff operation.

[0005] But when the water meter is clamped by the clamping device and then calibrated, after each water meter calibration is completed, the limiting of clamping device needs to be removed, and then the calibrated water meter is taken down, and then a new water meter to be calibrated is installed on the clamping device, so that the next water meter calibration work can be carried out, which leads to a long time for disassembly and assembly between two water meter calibration works, and affects the detection efficiency of water meter.

[0006] Therefore, it is urgent to provide a more efficient clamping device for cold water meter measurement calibration. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a kind of clamping device for cold water meter measurement calibration, to solve the problems raised in the above background.

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a clamping device for cold water meter measurement and verification, including verification platform and support column, the support column fixedly connected in the lower side four corners of verification platform, the left and right ends of the upper side of verification platform are fixedly connected with fixed plate, the inside upper end of fixed plate is fixedly connected with detection pipeline, the upper end of verification platform is provided with clamping mechanism.

[0009] The clamping mechanism includes a rectangular frame fixedly connected to the middle position of the upper side of the verification platform, a sliding plate connected to the inner side of the rectangular frame, limit rods fixedly connected to the left and right sides of the sliding plate, a motor installed at the middle position of the rear side of the rectangular frame, a first threaded rod fixedly connected to the front end of the output shaft of the motor, a bearing fixedly connected to the middle position of the front end of the inner side of the rectangular frame, circular groove bodies fixedly connected to the front and rear ends of the upper side of the sliding plate, lower pipe bodies fixedly connected to the left and right ends of the circular groove bodies, upper pipe bodies connected to the upper ends of the lower pipe bodies, lower fixed plates fixedly connected to the front ends of the outer sides of the lower pipe bodies, second threaded rods fixedly connected to the upper sides of the lower fixed plates, pressure rings connected to the outer sides of the second threaded rods, and upper fixed plates fixedly connected to the front ends of the outer sides of the upper pipe bodies.

[0010] Further improvements are that the left and right sides of the rectangular frame are provided with sliding grooves, the left and right sides of the sliding plate are slidingly connected to the left and right ends of the inner side of the rectangular frame, and the outer sides of the limit rods are slidingly connected to the inner sides of the sliding grooves, so that when the sliding plate moves, the limit rods at the left and right ends thereof can only slide along the inner sides of the sliding grooves.

[0011] Further improvements are that the front end outer side of the first threaded rod is fixedly connected to the inner side of the bearing, so that when the output shaft of the motor rotates to drive the first threaded rod to rotate, the end of the first threaded rod away from the motor rotates together with the inner ring of the bearing.

[0012] Further improvements are that a through threaded hole is formed at the middle position of the inner side of the sliding plate, and the outer side of the first threaded rod is screw-connected to the inner side of the threaded hole, so that when the output shaft of the motor rotates to drive the first threaded rod to rotate in the threaded hole, the sliding plate can slide along the inner side of the rectangular frame.

[0013] Further improvement lies in that the front end of the upper fixing plate is provided with a U-shaped groove, the inner side of the compression ring is provided with an internal thread, the inner side of the compression ring is threadedly connected with the outer side of the second threaded rod, the upper side of the lower fixing plate abuts against the lower side of the upper fixing plate, the outer side of the second threaded rod is slidingly connected with the inner side of the U-shaped groove, the lower side of the compression ring abuts against the upper side of the upper fixing plate, so that the upper pipe body is rotated to the upper side of the lower pipe body, the upper fixing plate is moved to the upper side of the lower fixing plate, the second threaded rod passes through the U-shaped groove, and then the compression ring is threadedly connected to the outer side of the second threaded rod until the lower side of the compression ring contacts the upper side of the upper fixing plate, so that the lower fixing plate and the upper fixing plate are relatively fixed.

[0014] Further improvement lies in that the inner sides of the lower pipe body and the upper pipe body are fixedly connected with rubber pads, so that the water meter is clamped and fixed more firmly through the rubber pads on the inner sides of the lower pipe body and the upper pipe body and the pipelines at two ends of the water meter.

[0015] Further improvement lies in that the left and right ends of the detection table are provided with material collecting mechanisms, the material collecting mechanisms comprise a storage box connected to the front left end of the detection table, a waste box connected to the front right end of the detection table, and a reverse L-shaped rod fixedly connected to the upper right end of the storage box and the upper left end of the waste box.

[0016] Further improvement lies in that the front of the left and right ends of the detection table is provided with a through insertion hole, and the outer side of the end of the reverse L-shaped rod away from the storage box is inserted into the inner side of the insertion hole, so that the storage box or the waste box is fixed to the left and right ends of the detection table when the limiting rods on the outer sides of the storage box or the sliding plate are inserted into the insertion holes at the left and right ends of the detection table.

[0017] In summary, the application discloses a clamping device for cold water meter measurement and detection.

[0018] The circular groove bodies arranged on the upper side of the sliding plate can drive the water meter above the other circular groove body to move to the detection pipeline between the two circular groove bodies after the detection of the water meter above one circular groove body is completed, so that the detection of the next water meter can be quickly performed, and the water meter detected at the other end is disassembled and a new water meter to be detected is installed during the detection of the water meter, so that the water meter clamped at one end of the sliding plate is disassembled and assembled at the other end during the detection, and then the position of the water meter is changed by moving the sliding plate after the detection of the water meter at one end is completed, so that the detection of the water meter can be continuously performed without waiting for the disassembly and assembly time of the water meter, and the detection efficiency of the cold water meter is improved.

[0019] Further, when the limiting rods outside the storage box or the sliding plate are inserted into the insertion holes at the left and right ends of the testing table, the storage box or the waste box can be fixed to the left and right ends of the testing table, so that the qualified and unqualified water meters can be classified and placed after the testing of the water meters is completed. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main body structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure at the two ends of the rectangular inner and outer ends of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure at the first threaded rod of the utility model;

[0023] Figure 4 It is a schematic diagram of the structure at the outer end of the sliding plate of the utility model;

[0024] Figure 5 It is a schematic diagram of the structure at the outer end of the circular groove body of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure at the storage box of the utility model.

[0026] In the drawing: 1, testing table; 2, support column; 3, fixed plate; 4, detection pipeline; 501, rectangular frame; 502, sliding plate; 503, limiting rod; 504, motor; 505, first threaded rod; 506, bearing; 507, circular groove body; 508, lower pipe body; 509, upper pipe body; 510, lower fixed plate; 511, second threaded rod; 512, compression ring; 513, upper fixed plate; 601, storage box; 602, waste box; 603, inverted L-shaped rod. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a clamping device for cold water meter measurement and testing, including testing table 1 and support column 2, support column 2 is fixedly connected in the lower side four corners of testing table 1, the left and right ends of the upper side of testing table 1 are fixedly connected with fixed plate 3, the inside upper end of fixed plate 3 is fixedly connected with detection pipeline 4, and the upper end of testing table 1 is provided with clamping mechanism.

[0029] The clamping mechanism includes a rectangular frame 501 fixedly connected to the middle position of the upper side of the calibration table 1. A sliding plate 502 is connected to the inner side of the rectangular frame 501. Limiting rods 503 are fixedly connected to the left and right sides of the sliding plate 502. Sliding grooves are opened on the left and right sides of the rectangular frame 501. The left and right sides of the sliding plate 502 are slidably connected to the left and right ends of the inner side of the rectangular frame 501. The outer side of the limiting rod 503 is slidably connected to the inner side of the sliding groove. Thus, when the sliding plate 502 moves, the limiting rods 503 at its left and right ends can only slide along the inner side of the sliding groove, thereby limiting the movement of the sliding plate 502.

[0030] A motor 504 is installed at the middle of the rear side of a rectangular frame 501. A first threaded rod 505 is fixedly connected to the front end of the output shaft of the motor 504. A bearing 506 is fixedly connected to the middle of the front end of the inner side of the rectangular frame 501. The outer side of the front end of the first threaded rod 505 is fixedly connected to the inner side of the bearing 506. When the output shaft of the motor 504 is started and rotates, driving the first threaded rod 505 to rotate, the end of the first threaded rod 505 away from the motor 504 will rotate together with the inner ring of the bearing 506, thereby enabling the first threaded rod 505 to maintain stable rotation as a whole.

[0031] A through threaded hole is provided in the middle of the sliding plate 502, and the outer side of the first threaded rod 505 is threadedly connected to the inner side of the threaded hole. Thus, when the output shaft of the starting motor 504 rotates, causing the first threaded rod 505 to rotate in the threaded hole, the sliding plate 502 can be driven to slide along the inner side of the rectangular frame 501.

[0032] A circular groove 507 is fixedly connected to the front and rear ends of the upper side of the sliding plate 502. A lower tube 508 is fixedly connected to the left and right ends of the circular groove 507. An upper tube 509 is connected to the upper end of the lower tube 508. A lower fixing plate 510 is fixedly connected to the outer front end of the lower tube 508. A second threaded rod 511 is fixedly connected to the upper side of the lower fixing plate 510. A pressure ring 512 is connected to the outer side of the second threaded rod 511. An upper fixing plate 513 is fixedly connected to the outer front end of the upper tube 509. A U-shaped groove is opened at the front end of the upper fixing plate 513. An internal thread is opened on the inner side of the pressure ring 512. The inner side of the pressure ring 512 is threaded to the outer side of the second threaded rod 511. The upper side of the lower fixing plate 510 abuts against the lower side of the upper fixing plate 513. The outer side of the second threaded rod 511 slides against the inner side of the U-shaped groove. The lower side of the pressure ring 512 abuts against the upper side of the upper fixing plate 513. After the water meter to be tested is placed on the circular groove 507 and the pipes at both ends of the water meter are located in the lower pipe body 508, the upper pipe body 509 is rotated to the upper side of the lower pipe body 508. At the same time, the upper fixing plate 513 moves to the upper side of the lower fixing plate 510, and the second threaded rod 511 passes through the U-shaped groove. Then, the pressure ring 512 is threaded to the outside of the second threaded rod 511 until the lower side of the pressure ring 512 contacts the upper side of the upper fixing plate 513. This fixes the lower fixing plate 510 and the upper fixing plate 513 relative to each other, thereby fixing the lower pipe body 508 and the upper pipe body 509 relative to each other. At the same time, the pipes at both ends of the water meter are fixed between the lower pipe body 508 and the upper pipe body 509, thus completing the clamping and fixing of the water meter.

[0033] Rubber pads are fixedly connected to the inner sides of the lower pipe body 508 and the upper pipe body 509. When the lower pipe body 508 and the upper pipe body 509 clamp and fix the pipes at both ends of the water meter, the rubber pads on the inner sides of the lower pipe body 508 and the upper pipe body 509 contact the pipes at both ends of the water meter, so that the water meter can be clamped and fixed more firmly.

[0034] The left and right ends of the calibration platform 1 are equipped with receiving mechanisms. The receiving mechanism includes a storage box 601 connected to the left front end of the calibration platform 1 and a scrap box 602 connected to the right front end of the calibration platform 1. An inverted L-shaped rod 603 is fixedly connected to the upper right end of the storage box 601 and the upper left end of the scrap box 602. Through holes are opened at the front of the left and right ends inside the calibration platform 1. The outer side of the inverted L-shaped rod 603 away from the storage box 601 is inserted into the inner side of the insertion hole. Thus, when the limiting rod 503 on the outer side of the storage box 601 or the sliding plate 502 is inserted into the insertion holes at the left and right ends of the calibration platform 1, the storage box 601 or the scrap box 602 can be fixed to the left and right ends of the calibration platform 1, so that qualified and unqualified water meters can be placed separately after the water meters are calibrated.

[0035] Working principle: When calibrating a cold water meter, first start the motor 504 to move the sliding plate 502 to the right along the inner side of the rectangular frame 501 until it contacts the inner rear end of the rectangular frame 501. At this time, the circular groove 507 at the upper front end of the sliding plate 502 moves to the position between the detection pipes 4 and the meter. Then, install the water meter to be tested onto the circular groove 507 at the upper front end of the sliding plate 502. Simultaneously, connect the detection pipes 4 to the pipes at both ends of the water meter. After installation, water is supplied to the water meter through the detection pipes 4 for calibration. Simultaneously, the circular groove 507 at the upper rear end of the sliding plate 502 is moved to the right. The water meter to be calibrated is installed on the 7th floor. After the water meter on the front circular groove 507 is calibrated, its connection with the test pipe 4 is disconnected. Then, the motor 504 is started to move the sliding plate 502 forward to the inner front end of the contact rectangle 501. At this time, the water meter installed on the upper rear end of the sliding plate 502 moves to the test pipe 4 and is then connected to the test pipe 4 for calibration. At the same time, the water meter that has been calibrated at the front end is disassembled and a new water meter is reinstalled. After the water meter at the rear end is calibrated, the calibration process is repeated to connect and calibrate the water meters, which effectively improves the calibration efficiency of cold water meters.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A clamping device for measuring and verifying cold water meters, comprising a verification table (1) and support columns (2), wherein the support columns (2) are fixedly connected to the four lower corners of the verification table (1), characterized in that: The left and right ends of the upper side of the calibration table (1) are fixedly connected to the fixing plate (3), the upper end of the inner side of the fixing plate (3) is fixedly connected to the detection pipe (4), and the upper end of the calibration table (1) is provided with a clamping mechanism. The clamping mechanism includes a rectangular frame (501) fixedly connected to the middle position of the upper side of the calibration table (1). A sliding plate (502) is connected to the inner side of the rectangular frame (501). Limiting rods (503) are fixedly connected to the left and right sides of the sliding plate (502). A motor (504) is installed at the middle position of the rear side of the rectangular frame (501). A first threaded rod (505) is fixedly connected to the front end of the output shaft of the motor (504). A bearing (506) is fixedly connected to the middle position of the inner front end of the rectangular frame (501). The sliding plate (502) A circular groove (507) is fixedly connected to the front and rear ends of the upper side. A lower tube (508) is fixedly connected to the left and right ends of the circular groove (507). An upper tube (509) is connected to the upper end of the lower tube (508). A lower fixing plate (510) is fixedly connected to the outer front end of the lower tube (508). A second threaded rod (511) is fixedly connected to the upper side of the lower fixing plate (510). A pressure ring (512) is connected to the outer side of the second threaded rod (511). An upper fixing plate (513) is fixedly connected to the outer front end of the upper tube (509).

2. The clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: The rectangular frame (501) has sliding grooves on its left and right sides. The left and right sides of the sliding plate (502) are slidably connected to the left and right ends of the inner side of the rectangular frame (501). The outer side of the limiting rod (503) is slidably connected to the inner side of the sliding groove.

3. The clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: The outer front end of the first threaded rod (505) is fixedly connected to the inner side of the bearing (506).

4. The clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: The sliding plate (502) has a through threaded hole in the middle position inside, and the outer side of the first threaded rod (505) is threadedly connected to the inner side of the threaded hole.

5. A clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: The upper fixing plate (513) has a U-shaped groove at its front end, the inner side of the pressure ring (512) has an internal thread, the inner side of the pressure ring (512) is threaded to the outer side of the second threaded rod (511), the upper side of the lower fixing plate (510) abuts against the lower side of the upper fixing plate (513), the outer side of the second threaded rod (511) is slidably connected to the inner side of the U-shaped groove, and the lower side of the pressure ring (512) abuts against the upper side of the upper fixing plate (513).

6. The clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: Rubber pads are fixedly connected to the inner sides of the lower tube (508) and the upper tube (509).

7. The clamping device for measuring and verifying cold water meters according to claim 1, characterized in that: The inspection platform (1) is provided with a receiving mechanism at both ends. The receiving mechanism includes a storage box (601) connected to the left front end of the inspection platform (1), and a scrap box (602) connected to the right front end of the inspection platform (1). An inverted L-shaped rod (603) is fixedly connected to the upper right end of the storage box (601) and the upper left end of the scrap box (602).

8. A clamping device for measuring and verifying cold water meters according to claim 7, characterized in that: The calibration table (1) has through holes at the front of its left and right ends. The outer side of the inverted L-shaped rod (603) away from the storage box (601) is inserted into the inner side of the hole.

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