Pipeline hydraulic clamping structure for testing of fluid flowmeter

Abstract

The utility model discloses a pipeline hydraulic clamping structure for testing a liquid flow meter, which belongs to the field of pipeline connecting structures for testing the liquid flow meter and is characterized in that a group of telescopic pipes are arranged on pipelines connected with two ends of a reducer pipe; and one set of telescopic pipes can stretch out and draw back between one set of first connecting pipes through driving of the corresponding hydraulic cylinders, so that the two ends of the reducer pipe can be conveniently disassembled and assembled between one set of telescopic pipes, and the situation that the reducer pipe cannot be installed due to the too short or too long length is avoided while the disassembly and assembly convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of a liquid flow meter test pipeline connection structure, and more specifically, to a pipeline hydraulic clamping structure for a liquid flow meter test. Background Art

[0002] When testing a liquid flow meter, it is necessary to use a standard flow meter for comparison. That is, the test liquid flow meter and the standard liquid flow meter are installed on the pipeline together, so that the liquid first flows through the installation position of the standard liquid flow meter and then flows through the installation position of the test liquid flow meter. It is observed whether the readings of the two flow meters are the same. At this time, the detection and subsequent calibration work can be realized.

[0003] In order to facilitate the detection readings of liquid flow meters under different pipe diameters and reduce errors, it is necessary to continuously disassemble and assemble reducer pipe sections of different pipe diameters connected to two flow meters during the detection process. It is particularly important to make the disassembly and assembly of the reducer pipe sections more convenient, reduce the length error at the connection of the reducer pipe sections, and make the installation of the connection of the reducer pipe sections tighter. Therefore, we proposed a hydraulic clamping structure for liquid flow meter testing to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the problems existing in the prior art, the utility model aims to provide a hydraulic clamping structure for testing a liquid flow meter pipe, which is provided with a group of telescopic tubes on the pipes connected at both ends of the reducer, and the group of telescopic tubes can be telescoped between a group of connecting tubes 1 by driving corresponding hydraulic cylinders, so as to facilitate the disassembly and assembly of the two ends of the reducer between the group of telescopic tubes, improve the convenience of disassembly and assembly, and will not be unable to install due to the length of the reducer being too short or too long; and a strip plug hole is provided on the connecting tube 1 at the connection of the telescopic tube, and a rubber seal is clamped inside the strip plug hole, so that it can seal the connection between the connecting tube 1 and the telescopic tube to avoid water leakage, and because its supporting body section is exposed, when the rubber seal is worn and leaks, the rubber seal can be pulled out and replaced through the supporting body section by directly removing the adjustable clamp, thereby improving the convenience of maintenance and replacement of the rubber seal.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A hydraulic clamping structure for testing a liquid flow meter comprises a group of control valves, a connecting pipe 1 is fixedly installed on the interfaces of a group of control valves between the control valves, a connecting pipe 2 is fixedly installed on the other interfaces of the control valves, a telescopic pipe is slidably connected inside the connecting pipes of the group, and the telescopic pipes of the group are fixedly installed through a reducer, two mounting ends are fixedly connected to the top of the reducer, and a standard liquid flow meter and a test liquid flow meter are fixedly installed on the two mounting ends respectively, and the bottoms of the connecting pipes of the group are fixedly welded through a bracket;

[0009] A ring seat is fixedly welded on the outer wall of a group of connecting pipes, and hydraulic cylinders are fixedly installed on both sides of the ring seat. Two ears are fixedly welded on the edge of the end of the telescopic tube, and the end of the telescopic rod on one side of the hydraulic cylinder is fixedly installed with the corresponding ear by bolts.

[0010] Furthermore, two strip plug holes are provided on the outer wall of the connecting tube 1 at the connection point between the connecting tube 1 and the telescopic tube, and rubber seals are fixedly clamped inside the two strip plug holes, and the outer sides of the two corresponding rubber seals are connected by an adjustable clamp.

[0011] Furthermore, the rubber seal includes a supporting body segment and a sealing body segment, the supporting body segment is clamped inside the strip plug hole, and the outer wall of the supporting body segment is in contact with the inner wall of the adjustable clamp, and the inner wall of the sealing body segment is in close contact with the corresponding outer wall of the telescopic tube.

[0012] Furthermore, a co-extruded groove is provided on the sealing body section at the connection point of two adjacent rubber sealing members.

[0013] Furthermore, the thickness of the sealing body section is greater than the distance between the inner wall of the connecting tube and the outer wall of the telescopic tube.

[0014] 3. Beneficial effects

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) In this solution, a group of telescopic tubes are arranged on the pipes connected at both ends of the reducer, and the group of telescopic tubes can be telescoped between the group of connecting pipes by driving the corresponding hydraulic cylinder, so that the two ends of the reducer can be easily disassembled and assembled between the group of telescopic tubes, which improves the convenience of disassembly and assembly while preventing the reducer from being unable to be installed due to being too short or too long.

[0017] (2) In this solution, a strip plug hole is provided on the connecting pipe 1 at the connection of the telescopic pipe, and a rubber seal is clamped inside the strip plug hole, so that the connection between the connecting pipe 1 and the telescopic pipe can be sealed to prevent water leakage. In addition, since the supporting body section is exposed to the outside, when the rubber seal is worn and leaks, the rubber seal can be pulled out through the supporting body section and replaced by simply removing the adjustable clamp, thereby improving the convenience of maintenance and replacement of the rubber seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For the utility model Figure 1 A schematic diagram of the structure of the enlarged part of the middle area;

[0020] Figure 3 This is a schematic diagram of the installation of the rubber seal of the utility model;

[0021] Figure 4 It is a schematic diagram of a strip plug hole of the utility model;

[0022] Figure 5 The utility model is a schematic diagram of a group of rubber seal joint structures.

[0023] Description of the numbers in the figure:

[0024] 1. Control valve; 2. Connecting pipe 1; 201. Ring seat; 202. Strip plug hole; 3. Connecting pipe 2; 4. Telescopic pipe; 401. Ear piece; 5. Reducer; 6. Standard liquid flow meter; 7. Test liquid flow meter; 8. Bracket; 9. Hydraulic cylinder; 10. Rubber seal; 1001. Support body section; 1002. Sealing body section; 1003. Co-extruded groove; 11. Adjustable clamp. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention specification; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 5A hydraulic clamping structure for testing a liquid flow meter comprises a group of control valves 1, a connecting pipe 2 is fixedly installed on the interface of a group of control valves 1 between the group of control valves 1, a connecting pipe 2 is fixedly installed on the other interface of a group of control valves 1, a telescopic pipe 4 is slidably connected inside the group of connecting pipes 1, and a group of telescopic pipes 4 are fixedly installed through a reducer 5, the top of the reducer 5 is fixedly connected to two installation ends, and a standard liquid flow meter 6 and a test liquid flow meter 7 are fixedly installed on the two installation ends respectively, and the bottom of the group of connecting pipes 1 2 is fixedly welded by a bracket 8;

[0028] A ring seat 201 is fixedly welded on the outer wall of a group of connecting tubes 2, and hydraulic cylinders 9 are fixedly installed on both sides of the ring seat 201. Two ear pieces 401 are fixedly welded on the edge of the end of the telescopic tube 4, and the end of the telescopic rod on one side of the hydraulic cylinder 9 is fixedly installed with the corresponding ear piece 401 by bolts; two strip plug holes 202 are opened on the outer wall of the connecting tube 2 located at the connection between the connecting tube 2 and the telescopic tube 4, and rubber seals 10 are fixedly clamped inside the two strip plug holes 202, and the outer sides of the corresponding two rubber seals 10 are socketed by an adjustable clamp 11.

[0029] The operating principle of this kind of hydraulic clamping structure for testing liquid flowmeters is:

[0030] First, control the hydraulic cylinder 9 to drive the corresponding telescopic tube 4 to move, so that the distance between a group of telescopic tubes 4 becomes larger, and then place the reducer 5 between a group of telescopic tubes 4 and then control the distance between a group of telescopic tubes 4 to shrink by the hydraulic cylinder 9, so that the ends of a group of telescopic tubes 4 are respectively in contact with the two ends of the reducer 5, and finally tighten the connection by bolts, and then fix the standard liquid flow meter 6 and the test liquid flow meter 7 on the corresponding installation ends respectively, and then introduce the liquid through the connecting pipe 2 3 located on one side of the standard liquid flow meter 6. At this time, the liquid can enter the connecting pipe 1 2 and the telescopic tube 4 through the control valve 1 there, and then pass through the reducer 5 to enter the other telescopic tube 4, the connecting pipe 1 2 and the control valve 1, and be discharged through the other connecting pipe 2 3. At this time, it can be observed whether the readings on the standard liquid flow meter 6 and the test liquid flow meter 7 are the same, so as to achieve the detection effect.

[0031] Embodiment 2:

[0032] In view of the above embodiment 1, for further description, refer to Figure 3-Figure 5The rubber seal 10 includes a support body segment 1001 and a sealing body segment 1002. The support body segment 1001 is clamped inside the strip plug hole 202, and the outer wall of the support body segment 1001 is in contact with the inner wall of the adjustable clamp 11. The inner wall of the sealing body segment 1002 is in close contact with the outer wall of the corresponding telescopic tube 4. A co-extruded groove 1003 is provided on the sealing body segment 1002 at the connection of two adjacent rubber seals 10. The thickness of the sealing body segment 1002 is greater than the distance between the inner wall of the connecting tube 2 and the outer wall of the telescopic tube 4.

[0033] The setting of the rubber seal 10 can seal the connection between the connecting pipe 2 and the telescopic tube 4 to prevent leakage, and the adjustable clamp 11 can tighten the two rubber seals 10. The setting of the co-extruded groove 1003 can make the connection between the two sealing body sections 1002 overlap, thereby improving the sealing of the connection.

[0034] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A hydraulic clamping structure for testing a liquid flow meter, comprising a set of control valves (1), characterized in that: A connecting pipe 1 (2) is fixedly installed on the interface of a group of control valves (1) between the control valves (1); a connecting pipe 2 (3) is fixedly installed on the other interface of a group of control valves (1); a telescopic pipe (4) is slidably connected inside the connecting pipe 1 (2); and the telescopic pipes (4) are fixedly installed between the groups through a reducer (5); the reducer (5) has two mounting ends fixedly connected to the top, and a standard liquid flow meter (6) and a test liquid flow meter (7) are fixedly installed on the two mounting ends respectively; and the bottoms of the connecting pipes 1 (2) are fixedly welded through a bracket (8); A ring seat (201) is fixedly welded on the outer wall of a group of connecting pipes (2), and a hydraulic cylinder (9) is fixedly installed on both sides of the ring seat (201). Two ear pieces (401) are fixedly welded on the edge of the end of the telescopic pipe (4), and the end of the telescopic rod on one side of the hydraulic cylinder (9) is fixedly installed with the corresponding ear piece (401) by bolts.

2. The hydraulic clamping structure for a pipe used for testing a liquid flow meter according to claim 1, characterized in that: Two strip-shaped plug holes (202) are provided on the outer wall of the connecting tube (2) at the connection point between the connecting tube (2) and the telescopic tube (4), and rubber seals (10) are fixedly clamped inside the two strip-shaped plug holes (202), and the outer sides of the two corresponding rubber seals (10) are sleeved together via an adjustable clamp (11).

3. The hydraulic clamping structure for testing a liquid flow meter according to claim 2, characterized in that: The rubber seal (10) comprises a supporting body section (1001) and a sealing body section (1002); the supporting body section (1001) is clamped inside the strip-shaped plug hole (202), and the outer wall of the supporting body section (1001) is in contact with the inner wall of the adjustable clamp (11), and the inner wall of the sealing body section (1002) is in close contact with the outer wall of the corresponding telescopic tube (4).

4. The hydraulic clamping structure for testing a liquid flow meter according to claim 3, characterized in that: A co-extrusion groove (1003) is provided on the sealing body section (1002) at the connection between two adjacent rubber sealing members (10).

5. The hydraulic clamping structure for testing a liquid flow meter according to claim 4, characterized in that: The thickness of the sealing body section (1002) is greater than the distance between the inner wall of the connecting tube (2) and the outer wall of the telescopic tube (4).

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