Clamping device for metrological verification of cold water meter

Abstract

The clamping device comprises a supporting plate and a positioning mechanism, the positioning mechanism comprises a placing base fixedly connected to the upper end of the supporting plate, a circular groove is formed in the upper end of the placing base, arc-shaped grooves are formed in the inner walls of the left side and the right side of the circular groove, and the arc-shaped grooves are arranged in the arc-shaped grooves. Two lower clamping blocks are symmetrically and fixedly connected to the upper end of the supporting plate; the clamping mechanism comprises a connecting strip arranged above the supporting plate, and two upper clamping blocks are symmetrically and fixedly connected to the rear side of the connecting strip; and the moving mechanism is used for moving the connecting strip. According to the clamping device, by means of the positioning structure, subsequent connection with the pipeline is facilitated, the pipeline does not need to be manually aligned and then limited, and operation of workers is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water meter detection, in particular to a clamping device for measuring and verifying a cold water meter. Background Art

[0002] Water meters can be divided into cold water meters and hot water meters according to the medium temperature. They are widely used in tap water, thermal power, chemical industry and other industries. The water temperature of 30℃ is the dividing line. Cold water meters: water meters with a medium lower limit temperature of 0℃ and an upper limit temperature of 30℃. In order to ensure the stable operation of water meters, enterprises or measurement departments that produce water meters need to perform performance verification on water meters. However, when verifying existing cold water meters, it is necessary to clamp and limit the water meters during verification to ensure stability during the verification process.

[0003] However, when using traditional water meter clamping devices, they generally simply use a threaded structure to clamp the water meter. Due to the lack of positioning function, the staff is required to manually align the water meter and then clamp it to ensure the subsequent connection between the water meter and the detection pipeline. This is obviously more troublesome. In addition, when using the threaded structure for clamping and limiting, in order to ensure the stability of the connection, the threaded part needs to be tightened, so the subsequent disassembly is also extremely laborious. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a clamping device for cold water meter measurement and calibration. The clamping device utilizes a positioning structure to facilitate subsequent connection with a pipeline, and there is no need to manually align the pipeline and then limit it, which facilitates the operation of the staff.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamping device for cold water meter measurement and calibration, comprising a support plate; a positioning mechanism, the positioning mechanism comprising a placement seat fixedly connected to the upper end of the support plate, the upper end of the placement seat is provided with a circular groove, the left and right inner walls of the circular groove are provided with arc grooves, the upper end of the support plate is symmetrically fixedly connected to two lower clamping blocks; a clamping mechanism, the clamping mechanism comprises a connecting strip arranged above the support plate, the rear side of the connecting strip is symmetrically fixedly connected to two upper clamping blocks; a moving mechanism, the moving mechanism is used to move the connecting strip.

[0007] Preferably, a plurality of support seats are fixedly connected to the lower end of the support plate.

[0008] Preferably, each upper clamping block is provided with an arc-shaped groove on the side opposite to the corresponding lower clamping block, and a rubber pad is arranged in each arc-shaped groove.

[0009] Preferably, the moving mechanism includes a piston cylinder passing through the support plate, an electromagnet is installed on the inner bottom of the piston cylinder, a magnetic piston that can slide up and down is arranged in the piston cylinder, the lower end of the magnetic piston is elastically connected to the upper end of the electromagnet by a spring, and the electromagnet is anisotropically attracted to the adjacent surface of the magnetic piston when energized, the upper end of the magnetic piston is fixedly connected to a connecting column, the upper end of the connecting column passes through the inner top of the piston cylinder and is fixedly connected to a connecting block, and the rear side of the connecting block is fixedly connected to the front side of the connecting strip.

[0010] Preferably, the bottom space of the piston cylinder is connected to the outside through a vent, and a manual valve is installed in the vent.

[0011] Preferably, two guide rods are symmetrically fixedly connected to the lower end of the connecting strip, and both of the two guide rods penetrate the supporting plate and are slidably connected to the supporting plate.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] During use, magnetic limiting is used for connection. Compared with the existing threaded connection method, the entire limiting process and the limiting release process are relatively simple. In addition, the use of rubber pads can not only increase the stability after clamping, but also avoid damage to the water meter tube body caused by hard clamping. Secondly, a positioning mechanism is also set before clamping the limit, which can effectively facilitate the operation of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a clamping device for cold water meter measurement and verification proposed by the utility model;

[0015] Figure 2 for Figure 1 sectional view of

[0016] Figure 3 for Figure 2 Enlarged view of point A.

[0017] In the figure: 1 support plate, 2 support seat, 3 placement seat, 4 circular groove, 5 arc groove, 6 lower clamping block, 7 upper clamping block, 8 connecting strip, 9 guide rod, 10 connecting block, 11 piston cylinder, 12 connecting column, 13 vent, 14 spring, 15 electromagnet, 16 magnetic piston. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 3 , a clamping device for cold water meter measurement and verification, comprising a support plate 1, a plurality of support seats 2 are fixedly connected to the lower end of the support plate 1;

[0020] The positioning mechanism also includes a placement seat 3 fixedly connected to the upper end of the support plate 1, a circular groove 4 is opened at the upper end of the placement seat 3, and arc grooves 5 are opened on the inner walls of the left and right sides of the circular groove 4. The upper end of the support plate 1 is symmetrically fixedly connected to two lower clamping blocks 6;

[0021] The clamping mechanism includes a connecting strip 8 arranged above the support plate 1, and two upper clamping blocks 7 are symmetrically fixedly connected to the rear side of the connecting strip 8. Each upper clamping block 7 is provided with an arc groove on the side opposite to the corresponding lower clamping block 6, and a rubber pad is provided in each arc groove;

[0022] Among them, it also includes a moving mechanism, which is used to move the connecting strip 8. The moving mechanism includes a piston cylinder 11 that passes through the support plate 1. The inner bottom of the piston cylinder 11 is installed with an electromagnet 15. A magnetic piston 16 that can slide up and down is arranged in the piston cylinder 11. The lower end of the magnetic piston 16 is elastically connected to the upper end of the electromagnet 15 through a spring 14. After the electromagnet 15 is energized, the adjacent surfaces of the magnetic piston 16 are attracted to each other by opposite charges. The upper end of the magnetic piston 16 is fixedly connected to a connecting column 12. The upper end of the connecting column 12 passes through the inner top of the piston cylinder 11 and is fixedly connected to a connecting block 10. The rear side of the connecting block 10 is fixedly connected to the front side of the connecting strip 8. The bottom space of the piston cylinder 11 is connected to the outside through a vent 13, and a manual valve is installed in the vent 13.

[0023] In order to ensure the stability of movement, two guide rods 9 are symmetrically fixedly connected to the lower end of the connecting strip 8 . The two guide rods 9 both penetrate the supporting plate 1 and are slidably connected to the supporting plate 1 .

[0024] In the utility model, when in use, the body of the cold water meter is placed in the circular groove 4, and the display part is located on the upper side. At this time, the tubes on both sides of the cold water meter are respectively mounted on the two lower clamping blocks 6, and the electromagnet 15 is started. After the electromagnet 15 is started, the magnetic piston 16 will move down, and the spring 14 will be compressed. The downward movement of the magnetic piston 16 will allow the two upper clamping blocks 7 to move down through the connecting column 12, the connecting block 10 and the connecting strip 8, and the tubes on both sides of the cold water meter are clamped and limited. After the limit is completed, the display part of the water meter will not be blocked, and the detection will not be affected.

[0025] After completing the limit, close the manual valve in the vent 13 and turn off the electromagnet 15. When the detection is completed, open the manual valve in the vent 13. At this time, under the elastic action of the spring 14, the magnetic piston 16 will move up, and finally move the multiple upper clamping blocks 7 up to release the limit.

[0026] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical solution and utility model concept of the utility model, which should be included in the protection scope of the utility model.

Claims

1. A clamping device for cold water meter measurement and verification, characterized in that: include: Support plate (1); A positioning mechanism, the positioning mechanism comprising a placement seat (3) fixedly connected to the upper end of the support plate (1), a circular groove (4) being provided at the upper end of the placement seat (3), arc grooves (5) being provided on the inner walls on both the left and right sides of the circular groove (4), and two lower clamping blocks (6) being symmetrically fixedly connected to the upper end of the support plate (1); A clamping mechanism, the clamping mechanism comprising a connecting strip (8) arranged above the support plate (1), the rear side of the connecting strip (8) being symmetrically fixedly connected to two upper clamping blocks (7); A moving mechanism, wherein the moving mechanism is used to move the connecting strip (8).

2. A clamping device for cold water meter measurement and verification according to claim 1, characterized in that: A plurality of support seats (2) are fixedly connected to the lower end of the support plate (1).

3. A clamping device for cold water meter measurement and verification according to claim 1, characterized in that: Each upper clamping block (7) is provided with an arc-shaped groove on the side opposite to the corresponding lower clamping block (6), and a rubber pad is provided in each arc-shaped groove.

4. A clamping device for cold water meter measurement and verification according to claim 1, characterized in that: The moving mechanism comprises a piston cylinder (11) passing through the support plate (1), an electromagnet (15) being installed at the inner bottom of the piston cylinder (11), a magnetic piston (16) being arranged in the piston cylinder (11) and being able to slide up and down, the lower end of the magnetic piston (16) being elastically connected to the upper end of the electromagnet (15) via a spring (14), the electromagnet (15) being attracted to the adjacent surface of the magnetic piston (16) by anisotropy when energized, the upper end of the magnetic piston (16) being fixedly connected to a connecting column (12), the upper end of the connecting column (12) passing through the inner top of the piston cylinder (11) and being fixedly connected to a connecting block (10), the rear side of the connecting block (10) being fixedly connected to the front side of the connecting strip (8).

5. A clamping device for cold water meter measurement and verification according to claim 4, characterized in that: The bottom space of the piston cylinder (11) is connected to the outside through a vent (13), and a manual valve is installed in the vent (13).

6. A clamping device for cold water meter measurement and verification according to claim 1, characterized in that: The lower end of the connecting strip (8) is symmetrically and fixedly connected to two guide rods (9), and the two guide rods (9) both penetrate the support plate (1) and are slidably connected to the support plate (1).

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