CN222371459U - Pipeline hydraulic clamping structure for liquid flow meter test - Google Patents

Abstract

The utility model discloses a pipeline hydraulic clamping structure for testing a liquid flow meter, which belongs to the field of pipeline connection structures for testing liquid flow meters. The utility model discloses a pipeline hydraulic clamping structure for testing a liquid flow meter, which is provided with a group of telescopic tubes on pipelines connected at both ends of a reducer, and the group of telescopic tubes can be telescoped between a group of connecting tubes by driving corresponding hydraulic cylinders, so that the two ends of the reducer can be easily disassembled and assembled between the group of telescopic tubes, and the convenience of disassembly and assembly is improved, and the reducer will not be unable to be installed due to being too short or too long.

Description

Pipeline hydraulic clamping structure for liquid flow meter test

Technical Field

The utility model relates to the field of liquid flowmeter test pipeline connection structures, in particular to a pipeline hydraulic clamping structure for liquid flowmeter test.

Background

When the liquid flowmeter is tested, the standard flowmeter is required to be used for comparison, namely the tested liquid flowmeter and the standard liquid flowmeter are installed on a pipeline together, so that liquid firstly flows through the installation position of the standard liquid flowmeter and then flows through the installation position of the tested liquid flowmeter, whether the readings of the two flowmeters are identical is observed, and then the detection and subsequent calibration work can be realized.

In order to facilitate the detection reading and error reduction of the liquid flowmeter under different pipe diameters, the reducing pipe sections with different pipe diameters, which are connected and installed with two flowmeters, are required to be continuously disassembled and assembled in the detection process, so that how to assemble and disassemble the reducing pipe sections is more convenient, the length error existing at the connecting position of the reducing pipe sections is reduced, and the fact that the connecting position of the reducing pipe sections is installed more tightly is important, therefore, the hydraulic clamping structure of the pipeline for testing the liquid flowmeter is provided to solve the problems existing above.

Disclosure of utility model

1. Technical problem to be solved

The utility model aims to solve the problems in the prior art, and provides a pipeline hydraulic clamping structure for testing a liquid flowmeter, which is characterized in that a group of telescopic pipes are arranged on pipelines connected with two ends of a reducer pipe, and the group of telescopic pipes can be stretched between the group of first connecting pipes through driving of corresponding hydraulic cylinders, so that the two ends of the reducer pipe can be conveniently disassembled and assembled between the group of telescopic pipes, the disassembly and assembly convenience is improved, meanwhile, the mounting cannot be realized due to the fact that the length of the reducer pipe is too short or too long, the first connecting pipe at the connecting position of the telescopic pipes is provided with a strip-shaped plug hole, the inside of the strip-shaped plug hole is clamped with a rubber sealing piece, so that the connecting position of the first connecting pipe and the telescopic pipe can be sealed, water leakage is avoided, and because the support body section of the strip-shaped plug hole is exposed, when the rubber sealing piece is worn and water leakage occurs, the rubber sealing piece can be pulled out and replaced through the support body section after an adjustable clamp is directly removed, and the convenience in maintenance and replacement of the rubber sealing piece is improved.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The pipeline hydraulic clamping structure for testing the liquid flowmeter comprises a group of control valves, wherein a first connecting pipe is fixedly arranged on one group of interfaces of the control valves, which are positioned between the group of control valves, a second connecting pipe is fixedly arranged on the other interface of the control valves, a telescopic pipe is fixedly arranged inside the first connecting pipe in a sliding manner, the telescopic pipes are fixedly arranged through reducing pipes, the top of each reducing pipe is fixedly connected with two mounting ends, a standard liquid flowmeter and a test liquid flowmeter are respectively fixedly arranged on the two mounting ends, and the bottoms of the first connecting pipes are fixedly welded through brackets;

The telescopic pipe comprises a group of connecting pipes, wherein a ring seat is fixedly welded on one outer wall of each connecting pipe, hydraulic cylinders are fixedly installed on two sides of each ring seat, two lugs are fixedly welded on the edge of the end part of each telescopic pipe, and the telescopic rod end part on one side of each hydraulic cylinder is fixedly installed with the corresponding lug through a bolt.

Furthermore, two strip-shaped plug holes are formed in the outer wall of the connecting pipe at the joint of the first connecting pipe and the telescopic pipe, rubber sealing pieces are fixedly clamped inside the two strip-shaped plug holes, and the outer sides of the corresponding two rubber sealing pieces are sleeved with each other through an adjustable clamp.

Further, the rubber sealing piece comprises a supporting body section and a sealing body section, wherein the supporting body section is clamped inside the strip-shaped plug hole, the outer wall of the supporting body section is in contact with the inner wall of the adjustable clamp, and the inner wall of the sealing body section is in close contact with the outer wall of the corresponding telescopic pipe.

Further, the joint of the two adjacent rubber sealing parts is provided with a co-extrusion groove on the sealing body section.

Further, the thickness of the sealing body section is larger than the distance between an inner wall of the connecting pipe and the outer wall of the telescopic pipe.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the telescopic pipes are arranged on the pipelines connected with the two ends of the reducer pipe, and the telescopic pipes can extend and retract between the connecting pipes through driving of the corresponding hydraulic cylinders, so that the two ends of the reducer pipe can be conveniently dismounted and mounted between the telescopic pipes, the dismounting convenience is improved, and meanwhile, the reducer pipe cannot be mounted due to too short or too long length;

(2) According to the scheme, the strip-shaped plug hole is formed in the first connecting pipe of the telescopic pipe connecting part, the rubber sealing piece is clamped inside the strip-shaped plug hole, so that the first connecting pipe and the telescopic pipe connecting part can be sealed, water leakage is avoided, and due to the fact that the supporting body section is exposed outside, when the rubber sealing piece is worn and leaked, the rubber sealing piece can be pulled out through the supporting body section to be replaced after the adjustable clamp is directly taken down, and the convenience of maintenance and replacement of the rubber sealing piece is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of a portion of the area of FIG. 1 according to the present utility model;

FIG. 3 is a schematic view of the rubber seal installation of the present utility model;

FIG. 4 is a schematic view of a strip-shaped plug hole according to the present utility model;

FIG. 5 is a schematic view of a set of rubber seal interface structures of the present utility model.

The reference numerals in the figures illustrate:

1. Control valve, 2, connecting pipe I, 201, ring seat, 202, bar-shaped plug hole, 3, connecting pipe II, 4, telescopic pipe, 401, lug, 5, reducer, 6, standard liquid flowmeter, 7, test liquid flowmeter, 8, bracket, 9, hydraulic cylinder, 10, rubber sealing element, 1001, supporting body section, 1002, sealing body section, 1003, co-extrusion groove, 11, adjustable clamp.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Example 1:

Referring to fig. 1-5, a pipeline hydraulic clamping structure for testing a liquid flow meter comprises a group of control valves 1, wherein a first connecting pipe 2 is fixedly arranged on the interfaces of the group of control valves 1 positioned between the group of control valves 1, a second connecting pipe 3 is fixedly arranged on the other interfaces of the group of control valves 1, telescopic pipes 4 are slidingly connected inside the first connecting pipe 2, the telescopic pipes 4 are fixedly arranged through reducing pipes 5, two mounting ends are fixedly connected to the top of the reducing pipes 5, a standard liquid flow meter 6 and a test liquid flow meter 7 are fixedly arranged on the two mounting ends respectively, and the bottoms of the first connecting pipes 2 are fixedly welded through brackets 8;

The outer walls of the first connecting pipes 2 are fixedly welded with ring seats 201, the two sides of each ring seat 201 are fixedly provided with hydraulic cylinders 9, the edges of the end parts of the telescopic pipes 4 are fixedly welded with two lugs 401, the end parts of telescopic rods on one side of each hydraulic cylinder 9 are fixedly installed with the corresponding lugs 401 through bolts, the outer walls of the first connecting pipes 2 positioned at the joints of the first connecting pipes 2 and the telescopic pipes 4 are provided with two strip-shaped plug holes 202, rubber sealing elements 10 are fixedly clamped inside the two strip-shaped plug holes 202, and the outer sides of the corresponding two rubber sealing elements 10 are sleeved with one another through adjustable clamps 11.

The use principle of the pipeline hydraulic clamping structure for testing the liquid flowmeter is as follows:

Firstly, the hydraulic cylinder 9 is controlled to drive the corresponding telescopic pipes 4 to move, so that the distance between the telescopic pipes 4 is increased, then the reducing pipe 5 is placed between the telescopic pipes 4, then the hydraulic cylinder 9 is used to control the distance between the telescopic pipes 4 to shrink, the end parts of the telescopic pipes 4 are respectively contacted with the two ends of the reducing pipe 5, finally, the connecting parts are fixedly connected through bolts, then, the standard liquid flowmeter 6 and the test liquid flowmeter 7 are respectively and fixedly arranged on the corresponding mounting ends, then, liquid is led in through the second connecting pipe 3 positioned on one side of the standard liquid flowmeter 6, at the moment, the liquid can enter the first connecting pipe 2 and the inside of the telescopic pipe 4 through the control valve 1 at the position, then, the liquid passes through the reducing pipe 5 to enter the other telescopic pipe 4, the first connecting pipe 2 and the inside of the control valve 1, and is discharged through the second connecting pipe 3, at the moment, whether the readings on the standard liquid flowmeter 6 and the test liquid flowmeter 7 are identical can be observed, and the detection effect is achieved.

Example 2:

In view of the above embodiment 1, as further described with reference to fig. 3-5, the rubber seal 10 includes a support section 1001 and a seal section 1002, the support section 1001 is clamped inside the strip-shaped plug hole 202, the outer wall of the support section 1001 contacts with the inner wall of the adjustable clamp 11, the inner wall of the seal section 1002 is tightly contacted with the outer wall of the corresponding telescopic tube 4, the seal sections 1002 at the joint of two adjacent rubber seals 10 are provided with co-extrusion grooves 1003, and the thickness of the seal section 1002 is greater than the distance between the inner wall of the first connecting tube 2 and the outer wall of the telescopic tube 4.

The setting of rubber seal 10 can seal the junction of connecting pipe one 2 and flexible pipe 4, prevents the condition of weeping, and the clamp 11 with adjustable can play the effect of tightening up two rubber seal 10, and the setting of crowded groove 1003 altogether can make two seal body section 1002 junctions be overlap joint form and connect, improves junction leakproofness.

The above description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (5)

1. The pipeline hydraulic clamping structure for testing the liquid flow meter comprises a group of control valves (1) and is characterized in that a first connecting pipe (2) is fixedly arranged on an interface of one group of control valves (1) between the group of control valves (1), a second connecting pipe (3) is fixedly arranged on the other interface of one group of control valves (1), telescopic pipes (4) are slidingly connected inside the first connecting pipe (2), the telescopic pipes (4) are fixedly arranged through reducing pipes (5), two mounting ends are fixedly connected to the top of each reducing pipe (5), a standard liquid flow meter (6) and a test liquid flow meter (7) are fixedly arranged on the two mounting ends respectively, and the bottoms of the first connecting pipes (2) are fixedly welded through brackets (8);

The two-way telescopic connecting device comprises a group of first connecting pipes (2), wherein ring seats (201) are fixedly welded on the outer walls of the first connecting pipes, hydraulic cylinders (9) are fixedly installed on two sides of each ring seat (201), two lugs (401) are fixedly welded on the edges of the end parts of the telescopic pipes (4), and the telescopic rod end parts on one side of each hydraulic cylinder (9) are fixedly installed between the corresponding lugs (401) through bolts.

2. The hydraulic clamping structure for a pipeline for testing a liquid flow meter according to claim 1, wherein two strip-shaped plug holes (202) are formed in the outer wall of the first connecting pipe (2) at the joint of the first connecting pipe (2) and the telescopic pipe (4), rubber sealing elements (10) are fixedly clamped in the two strip-shaped plug holes (202), and the outer sides of the corresponding two rubber sealing elements (10) are sleeved with each other through an adjustable clamp (11).

3. The hydraulic clamping structure for a pipeline for testing a liquid flow meter according to claim 2, wherein the rubber sealing member (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), 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 pipe (4).

4. A pipeline hydraulic clamping structure for testing a liquid flow meter according to claim 3, wherein the joint of two adjacent rubber sealing elements (10) is provided with a co-extrusion groove (1003) on each sealing body section (1002).

5. The hydraulic clamping structure of a pipeline for testing a liquid flow meter according to claim 4, wherein the thickness of the sealing body section (1002) is larger than the distance between the inner wall of the first connecting pipe (2) and the outer wall of the telescopic pipe (4).