CN212363143U

CN212363143U - Pipeline inspection tool and air tightness testing device thereof

Info

Publication number: CN212363143U
Application number: CN202021445529.1U
Authority: CN
Inventors: 孔祖; 吕书永; 何金路; 欧阳泽敏; 李培
Original assignee: Hefei Jianghuai Automobile Pipe Co ltd
Current assignee: Hefei Jianghuai Automobile Pipe Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-01-15
Anticipated expiration: 2030-07-21

Abstract

The utility model discloses an utensil is examined to pipeline and airtight testing arrangement thereof, comprises a workbench, the workstation upper end is fixed with the fixed plate, the workstation upper end just is located fixed plate one side and is equipped with the movable plate, the workstation upper end is fixed with slide rail one and cylinder one, the movable plate is installed on slide rail one, the piston rod of cylinder one is fixed with the movable plate, the workstation upper end just is located one side that the movable plate was kept away from to the fixed plate and is fixed with cylinder two, cylinder two's piston rod is fixed with the mounting panel, the one end that the mounting panel is close to the fixed plate is fixed with more than two push rods, the workstation upper end just is located and is fixed with more than two mount pads between fixed plate and the mounting panel, be equipped with the bullport on the mount pad respectively, the push rod passes the bullport respectively and is fixed with end. The pipeline inspection device and the air tightness test device thereof can prevent the pipeline from expanding and displacing in the air tightness test.

Description

Pipeline inspection tool and air tightness testing device thereof

Technical Field

The utility model relates to a pipeline gas tightness field, concretely relates to utensil is examined to pipeline and airtight testing arrangement thereof.

Background

At present, a battery pack of a new energy passenger car mostly adopts a liquid cooling mode, and in order to ensure the reliability of a cooling water pipe of the battery pack, a product needs to be subjected to size detection and airtightness test before leaving a factory. In the prior art, the pipeline is firstly assembled on the checking fixture for size detection, and then the pipeline is disassembled and assembled on the airtight tool for airtight detection. The pipeline is placed on the detection table by testing air tightness, then all connectors are plugged by plugs, and then one air-admission plugging head is reserved to connect the air-tight equipment. In the testing process, the pipeline expands along with the rise of air pressure, the airtight plug is not installed in place and can be flushed out, and potential safety hazards exist. Secondly, the pipeline need place the pipeline on examining the utensil frock when size detection, then take off again, later survey airtight also need place the pipeline on airtight detection platform. And an airtight tool is installed, so that the process steps are repeated, and the manufacturing cost is increased invisibly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a utensil is examined to pipeline and airtight testing arrangement thereof, it can prevent that the pipeline from taking place the inflation displacement in carrying out airtight test.

In order to achieve the above object, the utility model provides a following technical scheme:

a pipeline inspection tool and an air tightness testing device thereof comprise a workbench, wherein a fixed plate is fixed at the upper end of the workbench, more than two arc-shaped grooves are formed in the upper end of the fixed plate, a movable plate is arranged at the upper end of the workbench and positioned on one side of the fixed plate, a first slide rail and a first air cylinder are fixed at the upper end of the workbench, the movable plate is installed on the first slide rail, a piston rod of the first air cylinder is fixed with the movable plate, a second air cylinder is fixed at one side, away from the movable plate, of the upper end of the workbench, the piston rod of the second air cylinder is fixed with an installation plate, more than two push rods are fixed at one end, close to the fixed plate, of the installation plate, more than two installation seats are fixed at the upper end of the workbench and positioned between the fixed plate and the installation plate, guide holes are respectively formed in the installation seats, and the second plug is provided with an air inlet pipe.

Preferably, the opposite ends of the fixed plate and the moving plate are provided with grooves.

Preferably, the workstation upper end is equipped with slide rail two, slide rail two is perpendicular with the fixed plate, install the slider on the slide rail two, the slider upper end is fixed with left riser and right riser, end cap two is fixed with the one end of connecting rod, the other end of connecting rod passes left riser and is connected through the bearing with the one end of lead screw, the other end of lead screw passes right riser and is fixed with handle one, the lead screw passes through threaded connection with right riser.

Preferably, be equipped with iron plate on the connecting rod outer wall and be located between left riser and the right riser, iron plate passes through threaded connection with the connecting rod, the one end that left riser is close to iron plate is embedded to have an electromagnetic plate.

Preferably, the upper end of the moving plate is provided with a pressing mechanism, and the pressing mechanism is used for pressing the pipeline.

Preferably, hold-down mechanism includes the support frame, the support frame upper end is fixed with cylinder three, the piston rod of cylinder three is fixed with the backup pad, be equipped with two above screw rods in the backup pad, the screw rod upper end is fixed with handle two, the screw rod lower extreme passes the backup pad and is connected with the connecting axle, screw rod and backup pad pass through threaded connection, the connecting axle lower extreme is fixed with the pressure pad.

Preferably, be equipped with spout one, spout two, spout three from top to bottom in proper order in the screw rod, the diameter of spout one, spout two, spout three reduces in proper order, spout one, spout two, three intercommunications of spout, the connecting axle upper end passes spout three, spout two in proper order and stretches into spout one, the connecting axle upper end is fixed with the limiting plate, just it is equipped with the spring to be located two endothecas of spout on the connecting axle outer wall, on the connecting axle outer wall and spout two internal fixation have the push pedal, spring upper end and lower extreme are fixed with two tops of spout, push pedal upper end respectively.

Preferably, the first plug comprises a first cylindrical section, a first circular truncated cone section, a second cylindrical section, a second circular truncated cone section and a third cylindrical section, the diameter of the second cylindrical section is the same as that of the smaller bottom surfaces of the first circular truncated cone section and the second circular truncated cone section, the diameter of the first cylindrical section is the same as that of the larger bottom surface of the second circular truncated cone section, and the diameter of the third cylindrical section is the same as that of the larger bottom surface of the second circular truncated cone section.

Preferably, an included angle between a generatrix of the first circular truncated cone section and the upper end face of the first cylindrical section is 35 degrees, and an included angle between a generatrix of the second circular truncated cone section and the upper end face of the third cylindrical section is 10 degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

1) the gauge is composed of the fixed plate and the movable plate, so that the size detection of pipelines of various types is facilitated, and secondly, the first plug, the second plug and the air inlet pipe are arranged, so that the air tightness detection can be directly performed after the size detection of the pipelines is finished, the pipelines do not need to be moved, the working efficiency is improved, and the manufacturing cost is reduced;

2) through setting up hold-down mechanism, can prevent that the pipeline from taking place the displacement of expanding in carrying out airtight test.

Drawings

Fig. 1 is a top view of a pipeline inspection device and an air tightness testing device thereof according to an embodiment of the present invention;

fig. 2 is a front view of a fixing plate in an embodiment of the present invention;

FIG. 3 is a front view of the moving plate and hold-down mechanism in an embodiment of the present invention;

FIG. 4 is a side view of the moving plate, the fixed plate, and the pressing mechanism in the embodiment of the present invention;

FIG. 5 is a cross-sectional view of a screw in an embodiment of the present invention;

FIG. 6 is a schematic view of an embodiment of the present invention showing a plug extending into a pipe joint;

fig. 7 is a schematic structural diagram of a first plug in the embodiment of the present invention;

FIG. 8 is an enlarged view at A in FIG. 7;

in the figure, 1, a workbench, 2, a fixed plate, 3, an arc-shaped groove, 4, a movable plate, 5, a groove, 6, a first sliding rail, 7, a first cylinder, 8, a second cylinder, 9, a mounting plate, 10, a push rod, 11, a mounting seat, 12, a first plug, 1201, a first cylindrical section, 1202, a first circular truncated cone section, 1203, a second cylindrical section, 1204, a second circular truncated cone section, 1205, a third cylindrical section, 13, a second plug, 14, an air inlet pipe, 15, a second sliding rail, 16, a sliding block, 17, a left vertical plate, 18, a right vertical plate, 19, a connecting rod, 20, a screw rod, 21, a first handle, 22, an iron plate, 23, a support frame, 24, a third cylinder, 25, a support plate, 26, a screw rod, 27, a second handle, 28, a connecting shaft, 29, a press pad, 30, a first sliding groove, 31, a second sliding groove, 32, a third sliding groove, 33, a limiting plate, 34, a.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-8, a pipeline inspection tool and an air tightness testing device thereof include a worktable 1, a fixing plate 2 is fixed on the upper end of the worktable 1, more than two arc-shaped grooves 3 are arranged on the upper end of the fixing plate 2, and the arc-shaped grooves 3 are used for placing pipeline joints 36. A movable plate 4 is arranged at the upper end of the workbench 1 and on one side of the fixed plate 2, grooves 5 are formed in one ends, opposite to the fixed plate 2 and the movable plate 4, of the workbench 1, and a sliding rail I6 and a cylinder I7 are fixed to the upper end of the workbench 1. The moving plate 4 is arranged on the first sliding rail 6, and a piston rod of the first air cylinder 7 is fixed with the moving plate 4. And a second cylinder 8 is fixed at the upper end of the workbench 1 and at one side of the fixed plate 2 far away from the moving plate 4, and a piston rod of the second cylinder 8 is fixed with the mounting plate 9. The one end that mounting panel 9 is close to fixed plate 2 is fixed with more than two push rods 10, and the workstation 1 upper end just is located and is fixed with more than two mount pads 11 between fixed plate 2 and the mounting panel 9. The mounting seat 11 is respectively provided with a guide hole, and the push rod 10 respectively penetrates through the guide holes to be fixed with the first plugs 12. The number of the mounting seat 11, the push rod 10 and the arc-shaped grooves 3 is the same. And a second plug 13 is arranged at the upper end of the workbench 1 and on one side of the fixed plate 2 and the moving plate 4, and an air inlet pipe 14 is arranged on the second plug 13.

The upper end of the workbench 1 is provided with a second sliding rail 15, the second sliding rail 15 is perpendicular to the fixed plate 2, the second sliding rail 15 is provided with a sliding block 16, and the upper end of the sliding block 16 is fixed with a left vertical plate 17 and a right vertical plate 18. The second plug 13 is fixed with one end of a connecting rod 19, the other end of the connecting rod 19 penetrates through the left vertical plate 17 to be connected with one end of a screw rod 20 through a bearing, the other end of the screw rod 20 penetrates through the right vertical plate 18 to be fixed with a first handle 21, and the screw rod 20 is connected with the right vertical plate 18 through threads. Iron plates 22 are arranged on the outer wall of the connecting rod 19 and between the left vertical plate 17 and the right vertical plate 18, the iron plates 22 are in threaded connection with the connecting rod 19, and an electromagnetic plate is embedded in one end, close to the iron plates 22, of the left vertical plate 17. Rotating the first handle 21, the first handle 21 can drive the screw rod 20 to rotate, the screw rod 20 drives the connecting rod 19 to move, the connecting rod 19 drives the second plug 13 to extend into a pipeline interface at one end of a pipeline, then the iron plate 22 is screwed to rotate, the iron plate 22 is in contact with the electromagnetic plate, the electromagnetic plate is electrified, the electromagnetic plate and the iron plate 22 are attracted and fixed, and the second plug 13 can be prevented from rotating.

The upper end of the moving plate 4 is provided with a pressing mechanism which is used for pressing the pipeline. The pressing mechanism comprises a supporting frame 23, a third air cylinder 24 is fixed at the upper end of the supporting frame 23, and a piston rod of the third air cylinder 24 is fixed with a supporting plate 25. The supporting plate 25 is provided with more than two screws 26, and the number of the screws 26 is the same as that of the annular grooves 5. The upper end of the screw 26 is fixed with the second handle 27, the lower end of the screw 26 penetrates through the support plate 25 to be connected with the connecting shaft 28, the screw 26 is connected with the support plate 25 through threads, and the lower end of the connecting shaft 28 is fixed with the pressure pad 29. The screw 26 is internally provided with a first sliding groove 30, a second sliding groove 31 and a third sliding groove 32 from top to bottom in sequence, the diameters of the first sliding groove 30, the second sliding groove 31 and the third sliding groove 32 are reduced in sequence, the first sliding groove 30, the second sliding groove 31 and the third sliding groove 32 are communicated, the upper end of the connecting shaft 28 penetrates through the third sliding groove 32 and the second sliding groove 31 in sequence and extends into the first sliding groove 30, the upper end of the connecting shaft 28 is fixed with a limiting plate 33, a spring 34 is sleeved on the outer wall of the connecting shaft 28 and positioned in the second sliding groove 31, a push plate 35 is fixed on the outer wall of the connecting shaft 28 and in the second sliding groove 31, and the upper end. The spring 34 prevents damage to the cylinder three 24 when the conduit is expanded.

The first plug 12 is composed of a first cylindrical section 1201, a first truncated cone section 1202, a second cylindrical section 1203, a second truncated cone section 1204 and a third cylindrical section 1205, and the first cylindrical section 1201 is fixed with the push rod 10. The diameter of the second cylindrical section 1203 is the same as the diameters of the smaller bottom surfaces of the first truncated cone section 1202 and the second truncated cone section 1204, the diameter of the first cylindrical section 1201 is the same as the diameter of the larger bottom surface of the second truncated cone section 1204, and the diameter of the third cylindrical section 1205 is the same as the diameter of the larger bottom surface of the second truncated cone section 1204. An included angle between a generatrix of the first circular truncated cone section 1202 and the upper end surface of the first cylindrical section 1201 is 35 degrees, and an included angle between a generatrix of the second circular truncated cone section 1204 and the upper end surface of the third cylindrical section 1205 is 10 degrees. The inner wall of the pipeline joint 36 is provided with the clamping jaw 37, the second plug 13 can effectively prevent damage caused in the plug dismounting process after the airtight test is finished, and the work time for dismounting the plug can be reduced to improve the production efficiency; secondly, can guarantee that the jack catch 37 is in normal state after the assembly, avoid fixed jack catch 37 position because long-time inflation influences its performance.

The working principle is as follows: the pipeline is placed in the groove 5 of the fixed plate 2, the pipeline joint 36 is placed on the arc-shaped groove 3, then the first cylinder 7 is started, the first cylinder 7 drives the moving plate 4 to move along the first sliding rail 6 until the moving plate 4 and the fixed plate 2 clamp the pipeline tightly, and the size of the pipeline can be measured. After the measurement is finished, the third air cylinder 24 is started, the third air cylinder 24 drives the supporting plate 25 and the screw rod 26 to move downwards, the pressure pads 29 are enabled to compress the pipeline, and the pressure of the pressure pads 29 on the pipeline can be adjusted by rotating the second handle 27 according to the condition that each pressure pad 29 compresses the pipeline. And then inserting the second plug 13 into a port of the pipeline close to the second slide rail 15, so that the air inlet pipe 14 is connected with the airtight equipment to form an airtight tool. And starting the second air cylinder 8, wherein the second air cylinder 8 drives the push rod 10 to move towards the direction of the fixed plate 2, so that the first plug 12 extends into the pipeline joint 36. The air is introduced into the intake pipe 14, and the airtightness test of the pipe is started.

The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a utensil is examined to pipeline and airtight testing arrangement thereof which characterized in that: the device comprises a workbench, wherein a fixed plate is fixed at the upper end of the workbench, more than two arc-shaped grooves are formed in the upper end of the fixed plate, a movable plate is arranged at the upper end of the workbench and positioned on one side of the fixed plate, a first sliding rail and a first air cylinder are fixed at the upper end of the workbench, the movable plate is installed on the first sliding rail, a piston rod of the first air cylinder is fixed with the movable plate, a second air cylinder is fixed at the upper end of the workbench and positioned on one side of the fixed plate far away from the movable plate, a piston rod of the second air cylinder is fixed with an installation plate, more than two push rods are fixed at one end of the installation plate close to the fixed plate, more than two installation seats are fixed at the upper end of the workbench and positioned between the fixed plate and the installation plate, guide holes are respectively formed, and the second plug is provided with an air inlet pipe.

2. The pipeline inspection tool and the airtightness testing device thereof according to claim 1, wherein: and grooves are formed in the opposite ends of the fixed plate and the movable plate.

3. The pipeline inspection tool and the airtightness testing device thereof according to claim 1, wherein: the utility model discloses a lead screw, including workstation, fixed plate, slide rail two, slider, end cap two, bearing and lead screw, the workstation upper end is equipped with slide rail two, slide rail two is perpendicular with the fixed plate, install the slider on the slide rail two, the slider upper end is fixed with left riser and right riser, end cap two is fixed with the one end of connecting rod, the other end of connecting rod passes left riser and is connected through the bearing with the one end of lead screw, the other end of lead screw passes right riser and is fixed with handle one, the lead screw passes through.

4. The pipeline inspection tool and the airtightness testing device thereof according to claim 3, wherein: the iron plate is arranged on the outer wall of the connecting rod and located between the left vertical plate and the right vertical plate, the iron plate is in threaded connection with the connecting rod, and an electromagnetic plate is embedded in one end, close to the iron plate, of the left vertical plate.

5. The pipeline inspection tool and the airtightness testing device thereof according to claim 1, wherein: and a pressing mechanism is arranged at the upper end of the moving plate and used for pressing the pipeline.

6. The pipeline inspection tool and the airtightness testing device thereof according to claim 5, wherein: the pressing mechanism comprises a support frame, a third air cylinder is fixed to the upper end of the support frame, a piston rod of the third air cylinder is fixed to a support plate, more than two screw rods are arranged on the support plate, the upper end of each screw rod is fixed to a second handle, the lower end of each screw rod penetrates through the support plate to be connected with a connecting shaft, the screw rods are in threaded connection with the support plate, and the lower end of the connecting shaft is fixed to a pressing pad.

7. The pipeline inspection tool and the airtightness testing device thereof according to claim 6, wherein: be equipped with spout one, spout two, spout three from top to bottom in proper order in the screw rod, the diameter of spout one, spout two, spout three reduces in proper order, spout one, spout two, three intercommunication of spout, the connecting axle upper end passes spout three, spout two in proper order and stretches into spout one, the connecting axle upper end is fixed with the limiting plate, just it is equipped with the spring to be located two endothecas of spout on the connecting axle outer wall, on the connecting axle outer wall and two internal fixation of spout have the push pedal, spring upper end and lower extreme are fixed with two tops of spout, push pedal upper end respectively.

8. The pipeline inspection tool and the airtightness testing device thereof according to claim 1, wherein: the plug head I is composed of a first cylindrical section, a first circular truncated cone section, a second cylindrical section, a second circular truncated cone section and a third cylindrical section, the diameter of the second cylindrical section is the same as that of the smaller bottom surfaces of the first circular truncated cone section and the second circular truncated cone section, the diameter of the first cylindrical section is the same as that of the larger bottom surface of the second circular truncated cone section, and the diameter of the third cylindrical section is the same as that of the larger bottom surface of the second circular truncated cone section.

9. The pipeline inspection tool and the airtightness testing device thereof according to claim 8, wherein: the included angle between the generatrix of the first circular table section and the upper end face of the first cylindrical section is 35 degrees, and the included angle between the generatrix of the second circular table section and the upper end face of the third cylindrical section is 10 degrees.