Positioning structure for shell pressure test of flowmeter

Abstract

The utility model relates to the field of flow meter detection, and discloses a positioning structure for a shell pressure test of a flow meter, which comprises a test workbench, the top of the test workbench is fixedly connected with a base plate, the top end of the base plate is fixedly connected with a fixed bottom plate, and the top end of the fixed bottom plate is rotatably connected with a rotating circular ring. A protruding block is fixedly connected to the right side of the rotating ring, a threaded block is hinged to the top end of the protruding block, a threaded rod is in threaded connection with the interior of the threaded block, a fixing block is rotatably connected to the periphery of the threaded rod, and a limiting sleeve is hinged to the top end of the rotating ring. According to the utility model, the rotating circular ring, the limiting sleeve, the centering arms and the rotating threaded rod are arranged, so that the centering arms deflect towards the center of the rotating circular ring at the same time, the positioning of the flow meter shell is conveniently completed, the flow meter shell and the pressure pump are centered, the pressure pump can be sealed with a through hole in the lower part of the flow meter shell, and the test is ensured to be carried out smoothly.

Description

Technical Field

[0001] The utility model relates to the field of flow meter detection, in particular to a positioning structure for shell pressure test of a flow meter. Background Art

[0002] A flow meter is an instrument used to measure the flow of fluid in a pipe or open channel. The National Committee for the Examination of Scientific and Technological Terms defines it as an instrument that indicates the measured flow rate and / or the total amount of fluid in a selected time interval. It is widely used in various fields of the national economy, such as people's daily life, and is an important tool for developing industrial and agricultural production, saving energy, improving product quality, and improving economic benefits and management level. The housing of the flow meter is an important part of the flow meter. Pressure testing is an important link to ensure the normal operation and accurate measurement of the flow meter, and is also an important means to ensure the safety of industrial production and fluid measurement.

[0003] When performing a pressure test on the flowmeter shell, a flowmeter shell pressure testing machine is required. In order to place the flowmeter shell in the specified position and ensure that the pressure pump can be accurately connected to the flowmeter shell, a positioning structure for the flowmeter shell pressure test is required.

[0004] At present, the flow meter test bench usually clamps the flow meter shell on the test bench by clamping it left and right or up and down. However, in actual use, this clamping method will make the flow meter shell less aligned, which may cause the pressure pump and the through hole of the flow meter shell to fail to fit tightly, resulting in failure to pressurize to the specified pressure, and liquid leakage under pressurization, which may cause certain dangers. Therefore, a positioning structure for flow meter shell pressure test is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a positioning structure for a shell pressure test of a flow meter, aiming to improve the problem of insufficient centering when placing the flow meter shell in the existing device in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a positioning structure for a shell pressure test of a flow meter, comprising a test workbench, a base plate fixedly connected to the top of the test workbench, a fixed bottom plate fixedly connected to the top of the base plate, a rotating ring rotatably connected to the top of the fixed bottom plate, a protrusion fixedly connected to the right side of the rotating ring, a threaded block hinged to the top of the protrusion, a threaded rod threadedly connected to the inside of the threaded block, a fixed block rotatably connected to the outer periphery of the threaded rod, a limiting sleeve hinged to the top of the rotating ring, a centering component slidably connected to the inside of the limiting sleeve, a rubber placement table fixedly connected to the inside of the test workbench, a through hole is opened inside the rubber placement table, and a flow meter shell is placed on the top of the rubber placement table.

[0007] As a further description of the above technical solution:

[0008] A cylinder is arranged at the top of the test workbench, a fixed bracket is fixedly connected to the telescopic end of the top of the cylinder, a protective shell is fixedly connected to the bottom of the fixed bracket, an observation window is arranged on the front of the protective shell, and a rubber base pad is fixedly connected to the bottom of the protective shell.

[0009] As a further description of the above technical solution:

[0010] The bottom end of the fixed block is hinged to the top of the fixed bottom plate.

[0011] As a further description of the above technical solution:

[0012] The centering assembly comprises a centering arm, the outer periphery of the centering arm is slidably connected to the inside of the limiting sleeve, and a rotating wheel is hinged inside the centering arm.

[0013] As a further description of the above technical solution:

[0014] The bottom surface of the centering arm is hinged to the top end of the fixed bottom plate.

[0015] As a further description of the above technical solution:

[0016] The inner side of the rotating wheel contacts the side outer wall of the flow meter housing.

[0017] As a further description of the above technical solution:

[0018] A rectangular handle is arranged on the front side of the threaded rod.

[0019] As a further description of the above technical solution:

[0020] The bottom end of the rubber base pad contacts the top end of the test workbench.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a rotating ring, a limiting sleeve, and a centering arm, the threaded rod is rotated so that multiple groups of centering arms are simultaneously deflected toward the center of the rotating ring, thereby conveniently completing the positioning of the flow meter housing, making the flow meter housing and the booster pump aligned, and the booster pump can be tightly fitted with the through hole below the flow meter housing to ensure the smooth progress of the test.

[0023] 2. In the utility model, the protective shell can be moved up and down by arranging a cylinder and a fixed bracket, and a rubber bottom pad is arranged at the same time, so that the protective shell has good sealing after falling, thereby protecting the test personnel during the test and eliminating safety hazards. At the same time, the test can be observed through the observation window. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an overall front schematic diagram of a positioning structure for a shell pressure test of a flow meter proposed by the utility model;

[0025] Figure 2 This is a schematic diagram of the top of a base plate of a positioning structure for a shell pressure test of a flow meter proposed by the utility model;

[0026] Figure 3 This is a schematic diagram of the left side of a fixed base plate of a positioning structure for shell pressure testing of a flow meter proposed by the utility model.

[0027] Legend:

[0028] 1. Test workbench; 2. Base plate; 3. Fixed bottom plate; 4. Rotating ring; 5. Bump; 6. Threaded block; 7. Threaded rod; 8. Fixed block; 9. Limit sleeve; 10. Centering arm; 11. Rotating wheel; 12. Rubber placement table; 13. Through hole; 14. Flowmeter housing; 15. Cylinder; 16. Fixed bracket; 17. Protective housing; 18. Observation window; 19. Rubber base pad. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-Figure 3 The utility model provides an embodiment: a positioning structure for a shell pressure test of a flow meter, comprising a test bench 1 for carrying and supporting equipment, a base plate 2 for convenient operation is fixedly connected to the top of the test bench 1, a fixed bottom plate 3 is fixedly connected to the top of the base plate 2, a rotating ring 4 for convenient rotation is rotatably connected to the top of the fixed bottom plate 3, the center of the rotating ring 4 is the same as the center of the pressure pump inside the test bench 1, a convex block 5 is fixedly connected to the right side of the rotating ring 4, a threaded block 6 is hinged on the top of the convex block 5, a threaded rod 7 is threadedly connected to the threaded block 6 internally, the threaded rod 7 is rotated, and the threaded rod 7 can drive the threaded block 6 to move forward and backward along the outer wall of the threaded rod 7, a rectangular handle for convenient rotation is arranged on the front of the threaded rod 7, a fixed block 8 is rotatably connected to the outer periphery of the threaded rod 7, the bottom end of the fixed block 8 is hinged to the top of the fixed bottom plate 3, the fixed block 8 can rotate horizontally along its own center, a limiting sleeve 9 is hinged to the top of the rotating ring 4, three groups of limiting sleeves 9 are arranged, and the rings are evenly distributed on the top of the rotating ring 4, and a centering component for convenient centering and positioning is slidably connected inside the limiting sleeve 9.

[0031] Reference Figure 2-Figure 3 The centering assembly includes a centering arm 10, the outer periphery of the centering arm 10 is slidably connected to the inside of the limit sleeve 9, the limit sleeve 9 limits the centering arm 10 to slide back and forth only along the inner wall of the limit sleeve 9, the bottom surface of the centering arm 10 is hinged to the top of the fixed bottom plate 3, and a rotating wheel 11 is hinged inside the centering arm 10, and the rotating wheel 11 can rotate in the vertical direction. A rubber placement table 12 is fixedly connected to the inside of the test workbench 1. The rubber placement table 12 is made of hard rubber and has a certain deformation ability. A through hole 13 is opened inside the rubber placement table 12 to facilitate the passage of the pressure pump. A flow meter housing 14 is placed on the top of the rubber placement table 12, and the inner side of the rotating wheel 11 is in contact with the side outer wall of the flow meter housing 14, so that the flow meter housing 14 can move in the vertical direction.

[0032] Reference Figure 1 A cylinder 15 is provided at the top of the test workbench 1. There are two groups of cylinders 15, which are symmetrically arranged on the left and right sides of the test workbench 1. The telescopic end of the top of the cylinder 15 is fixedly connected to a fixed bracket 16. When the cylinder 15 is turned on, the telescopic end of the top of the cylinder 15 can drive the fixed bracket 16 to move up and down. The bottom end of the fixed bracket 16 is fixedly connected to a protective shell 17 to prevent accidents during the test. The front of the protective shell 17 is provided with an observation window 18 for conveniently observing the test situation. The bottom end of the protective shell 17 is fixedly connected to a rubber bottom pad 19. The bottom end of the rubber bottom pad 19 contacts the top of the test workbench 1, so that the bottom end of the protective shell 17 and the test workbench 1 are sealed.

[0033] Working principle: when you want to perform centering conveniently, first place the flowmeter housing 14 on the rubber placement table 12, and then turn the front handle of the threaded rod 7, the threaded rod 7 rotates, driving the threaded block 6 to rotate backward along the threaded rod 7, at this time the threaded block 6 and the fixed block 8 rotate at the same time, so that the threaded block 6 and the fixed block 8 always remain relative, the threaded block 6 drives the protrusion 5 to rotate along the center of the rotating ring 4, the protrusion 5 drives the rotating ring 4 to rotate, the rotating ring 4 drives the limiting sleeve 9 to rotate, the limiting sleeve 9 drives the centering arm 10 to deflect inwardly toward the center of the rotating ring 4, and the limiting sleeve 9 itself rotates, so that the three groups of centering arms 10 deflect inwardly at the same time, when the three groups of rotating wheels 11 contact the flowmeter housing 14 at the same time, the flowmeter housing 14 is aligned with the center of the rotating ring 4, and the positioning is more accurate. When you want to prevent accidents during the test, turn on the cylinder 15, the telescopic end at the top of the cylinder 15 drives the fixed bracket 16 to descend, the fixed bracket 16 drives the protective shell 17 to descend, the protective shell 17 drives the rubber bottom pad 19 to descend, and when the rubber bottom pad 19 is tightly combined with the test workbench 1, the pressurized test can be protected and safety hazards can be eliminated.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A positioning structure for a flow meter housing pressure test, comprising a test bench (1), characterized in that: The top of the test workbench (1) is fixedly connected to a base plate (2), the top of the base plate (2) is fixedly connected to a fixed bottom plate (3), the top of the fixed bottom plate (3) is rotatably connected to a rotating ring (4), the right side of the rotating ring (4) is fixedly connected to a convex block (5), the top of the convex block (5) is hinged to a threaded block (6), the threaded block (6) is internally threadedly connected to a threaded rod (7), the outer periphery of the threaded rod (7) is rotatably connected to a fixed block (8), the top of the rotating ring (4) is hinged to a limit sleeve (9), the limit sleeve (9) is internally slidably connected to a centering component, the inside of the test workbench (1) is fixedly connected to a rubber placement platform (12), the rubber placement platform (12) is provided with a through hole (13), and a flow meter housing (14) is placed on the top of the rubber placement platform (12).

2. The positioning structure for the housing pressure test of the flow meter according to claim 1, characterized in that: A cylinder (15) is arranged at the top of the test workbench (1); a fixed bracket (16) is fixedly connected to the top telescopic end of the cylinder (15); a protective shell (17) is fixedly connected to the bottom end of the fixed bracket (16); an observation window (18) is arranged on the front of the protective shell (17); and a rubber base pad (19) is fixedly connected to the bottom end of the protective shell (17).

3. The positioning structure for the housing pressure test of the flow meter according to claim 1, characterized in that: The bottom end of the fixed block (8) is hinged to the top of the fixed bottom plate (3).

4. The positioning structure for the housing pressure test of the flow meter according to claim 1, characterized in that: The centering assembly comprises a centering arm (10), the outer periphery of the centering arm (10) is slidably connected to the inside of the limiting sleeve (9), and a rotating wheel (11) is hinged inside the centering arm (10).

5. The positioning structure for the housing pressure test of the flow meter according to claim 4, characterized in that: The bottom surface of the centering arm (10) is hinged to the top end of the fixed bottom plate (3).

6. The positioning structure for the housing pressure test of the flow meter according to claim 4, characterized in that: The inner side of the rotating wheel (11) contacts the side outer wall of the flow meter housing (14).

7. The positioning structure for the housing pressure test of the flow meter according to claim 1, characterized in that: A rectangular handle is arranged on the front side of the threaded rod (7).

8. The positioning structure for the casing pressure test of the flow meter according to claim 2, characterized in that: The bottom end of the rubber base pad (19) contacts the top end of the test workbench (1).

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