CN115014639A

CN115014639A - Pipeline connector welding seam leakproofness detection device

Info

Publication number: CN115014639A
Application number: CN202210408809.2A
Authority: CN
Inventors: 吴舫舟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-09-06

Abstract

The invention relates to the field of pipeline connector production, in particular to a pipeline connector welding seam tightness detection device, and aims to solve the problem that subsequent use of a valve pipeline connector is influenced due to poor tightness of the valve pipeline connector. A pipeline connector welding seam tightness detection device comprises a mounting floor frame, an arc-shaped support frame, a guide rod, an arc-shaped friction plate, a pressing driving assembly and the like; an arc-shaped support frame is fixedly connected to the top of the installation floor frame, and a guide rod is fixedly connected to the upper portion of the arc-shaped support frame. Through the cooperation of suggestion pole and device above, if the leakproofness of pipeline is good, the suggestion pole can the upward movement, if the leakproofness of pipeline is not good, the suggestion pole then can not the upward movement, the staff of being convenient for judges the leakproofness of pipeline according to the lift of suggestion pole, the angle of pipeline can be adjusted intermittently simultaneously, is convenient for detect the leakproofness at a plurality of positions of pipeline internal weld, has realized the purpose that can be convenient for detect the leakproofness of pipeline.

Description

Pipeline connector welding seam leakproofness detection device

Technical Field

The invention relates to the field of pipeline connector production, in particular to a pipeline connector welding seam tightness detection device.

Background

Valve pipe coupling is the commonly used component in fluid piping system, and valve pipe coupling's main function is sealed pressure-bearing, for convenient with valve pipe coupling be connected to other equipment on, valve pipe coupling's one end is provided with the screw thread usually, when the pipeline both ends of connecting all need pass through threaded connection, need use the valve pipe coupling that both ends are all screwed, consequently need produce both sides and all take the screwed valve pipe coupling.

Prior art when the production both sides all have screwed valve pipe connection spare, utilize the welded mode to weld two one end screwed valve pipe connection spare usually, let welded valve pipe connection spare both ends all have the screw thread, however valve pipe connection spare's leakproofness is an important parameter thereof, valve pipe connection spare's leakproofness well can influence its subsequent use, consequently need detect the welding seam leakproofness of the valve pipe connection spare after the welding, whether the valve pipe connection spare of ensureing to produce reaches the requirement.

Disclosure of Invention

The pipeline connector welding seam tightness detection device is convenient for detecting a pipeline for multiple times so as to reduce errors and detecting the tightness of multiple parts of welding seams in the pipeline, and solves the problem that the subsequent use of a valve pipeline connecting piece is influenced due to poor tightness of the valve pipeline connecting piece.

In order to achieve the purpose, the invention provides a pipeline connector welding seam tightness detection device which comprises a mounting floor frame, an arc-shaped support frame, a guide rod, an arc-shaped friction plate, a pressing driving assembly, an adjusting assembly, a detection assembly, a one-way air outlet assembly and a rotating assembly, wherein the mounting floor frame is fixedly connected with the guide rod;

the top of the installation floor frame is fixedly connected with the arc-shaped support frame;

the upper part of the arc-shaped support frame is fixedly connected with a guide rod;

the arc friction plate is rotatably connected to the arc support frame;

the lower pressing driving component is arranged on the installation floor frame;

the adjusting component is arranged on the installation floor frame and used for adjusting the detection part according to the position of the inner welding line of the pipeline;

the detection assembly is arranged on the adjusting assembly and used for detecting the airtightness of the welding line in the pipeline; the detection component is provided with a one-way air outlet component;

the rotating assembly is arranged on the installation floor frame.

Furthermore, the downward pressing driving assembly comprises an L-shaped opening frame, an electric push rod and a special-shaped pressing frame, the top of the installation floor frame is fixedly connected with the L-shaped opening frame, the electric push rod is fixedly installed on the upper portion of the L-shaped opening frame, and the special-shaped pressing frame is fixedly connected to an expansion shaft of the electric push rod.

Further, the adjusting component comprises an N-shaped support frame, an annular cavity frame, an adjusting screw, a slotted nut frame, an arc groove spline shaft, three-way connecting pipes, a rubber jacking frame and a sliding air outlet pipe, the top of the installation floor frame is fixedly connected with the N-shaped support frame, the right side of the upper part of the N-shaped support frame is fixedly connected with the annular cavity frame, the annular cavity frame is rotatably connected with the adjusting screw, the adjusting screw is positioned above the arc friction plate, the adjusting screw is connected with the slotted nut frame in a thread fit manner, the left side of the slotted nut frame is rotatably connected with the arc groove spline shaft, the arc groove spline shaft is provided with six arc grooves, the slotted nut frame is provided with six three-way connecting pipes, the three-way connecting pipes are slidably connected with the sliding air outlet pipe, the sliding air outlet pipe is communicated with the three-way connecting pipes, the sliding air outlet pipe is slidably connected with the slotted nut frame, and the tail end of the sliding air outlet pipe is fixedly connected with the rubber jacking frame, the rubber top moving frame is movably matched with the arc groove spline shaft.

Further, the detection component comprises an L-shaped connecting pipe, a wedge-shaped piston rod, a first reset spring, an L-shaped slotting frame, a long-strip slotting frame, a short-strip slotting frame, a telescopic hose, a prompt rod and a second reset spring, the bottom of the annular cavity frame is communicated with the L-shaped connecting pipe, the right side of the L-shaped connecting pipe is connected with the wedge-shaped piston rod in a sliding mode, the wedge-shaped piston rod is contacted with the special-shaped pressing frame, the first reset spring is connected between the wedge-shaped piston rod and the L-shaped connecting pipe, the upper part of the N-shaped support frame is fixedly connected with the two L-shaped slotting frames which are symmetrically arranged, the L-shaped slotting frame is communicated with the annular cavity frame, the upper part of the N-shaped support frame is fixedly connected with the two long-strip slotting frames which are symmetrically arranged, the long-strip slotting frame is also communicated with the annular cavity frame, the upper part of the N-shaped support frame is fixedly connected with the two short-strip slotting frames which are symmetrically arranged, and the short-strip slotting frame is also communicated with the annular cavity frame, the L-shaped slotting frame, the long-strip slotting frame and the short-strip slotting frame are all communicated with a telescopic hose, the telescopic hose is communicated with a three-way connecting pipe, the L-shaped slotting frame, the long-strip slotting frame and the short-strip slotting frame are all connected with a prompting rod in a sliding mode, and the L-shaped slotting frame, the long-strip slotting frame and the short-strip slotting frame are respectively connected with a second reset spring between the prompting rod.

Furthermore, the one-way subassembly of giving vent to anger all is equipped with fixed valve body including fixed valve body, sliding piston and third reset spring, L type slotted frame, rectangular slotted frame and short strip slotted frame right side, and fixed valve body inside slidingtype is connected with sliding piston, is connected with third reset spring between sliding piston and the fixed valve body.

Further, the rotating assembly comprises a sliding installation block, a special-shaped slotted frame, a spline sleeve, an adjusting gear, a downward-pressing rack rod, a fourth reset spring, an N-shaped connecting rod, a limiting clamping rod and a spiral spring, the left side of the top of the installation floor frame is connected with the sliding installation block in a sliding way, the upper part of the sliding installation block is fixedly connected with the special-shaped slotted frame, the special-shaped slotted frame is connected with the spline sleeve in a rotating way, the spline sleeve is sleeved with an arc-groove spline shaft, the arc-groove spline shaft penetrates through the spline sleeve, the spline sleeve is fixedly connected with the adjusting gear, the downward-pressing rack rod is connected with the downward-pressing rack rod in a sliding way, the downward-pressing rack rod is meshed with the adjusting gear, four fourth reset springs are connected between the downward-pressing rack rod and the special-shaped slotted frame, the N-shaped connecting rod is fixedly connected with the top of the special-shaped slotted frame, the N-shaped connecting rod is contacted with the downward-pressing rack rod, the front part of the special-shaped slotted frame is connected with the limiting clamping rod, and the limiting clamping rod is contacted with the downward-pressing rack rod, a spiral spring is connected between the limiting clamping rod and the special-shaped slotted frame.

Further, still including the reset assembly, the reset assembly is located on the N type support frame, the reset assembly is including fixed rack bar, the axis of rotation, rotate the gear wheel, freewheel clutch, it lacks the gear and fixes rack bar piece to rotate, the rigid coupling has fixed rack bar on the heterotypic pressure frame, the anterior rotary type of N type support frame is connected with the axis of rotation, the axis of rotation right side is equipped with freewheel clutch, the rigid coupling has the rotation gear wheel on the freewheel clutch, rotate gear wheel and fixed rack bar meshing, axis of rotation left side rigid coupling has and rotates and lacks the gear, spacing kelly front end rigid coupling has fixed rack bar piece.

Further, the floor rack assembly comprises an angle deflection assembly, the angle deflection assembly is arranged on the installation floor rack and connected with the special-shaped slotted rack, the angle deflection assembly comprises an arc-shaped rack, a lifting rack, a fifth reset spring, a rectangular slotted rack, a sixth reset spring, a wedge-shaped poking rod and an extension spring, the arc-shaped rack is fixedly connected to the left side of the bottom of the arc-shaped friction plate, the lifting rack is slidably connected to the special-shaped slotted rack, the lifting rack is also meshed with the adjusting gear, four fifth reset springs are connected between the lifting rack and the special-shaped slotted rack, the rectangular slotted rack is fixedly connected to the top of the installation floor rack, the rectangular slotted rack is slidably connected to the rectangular slotted rack, the slotted rack is meshed with the arc-shaped rack, two sixth reset springs are connected between the slotted rack and the rectangular slotted rack, the wedge-shaped poking rod is slidably connected to the rear side of the slotted rack, the wedge poke rod is contacted with the lifting rack, and an extension spring is connected between the wedge poke rod and the slotting rack.

The invention has the following beneficial effects:

1. the slotted nut frame and the position of the device on the slotted nut frame can be adjusted by rotating the adjusting screw rod, so that the rubber jacking frame is aligned to the inner welding line of the pipeline to be detected, the detection position can be conveniently adjusted according to the position of the inner welding line of the pipeline, and the slotted nut frame is suitable for detecting the leakproofness of pipelines at different welding line positions.

2. Through the cooperation of suggestion pole and device above, if the seal of pipeline is good, the suggestion pole can the upward movement, if the seal of pipeline is not good, the suggestion pole then can not the upward movement, the staff of being convenient for judges the seal of pipeline according to the lift of suggestion pole, has realized the mesh of the seal that can be convenient for detect the pipeline.

3. In the process that the device carries out the detection to the pipeline, spacing kelly can block pushing down the rack bar, and rubber top moves the state that the frame keeps laminating with the welding seam in the pipeline, is detecting many times after, and spacing kelly no longer blocks pushing down the rack bar, and rubber top moves the frame can with the welding seam separation in the pipeline, be convenient for carry out many times to the pipeline and detect to reduce the detection error.

4. Through the cooperation of arc friction plate and device above that, arc friction plate can drive the pipeline through frictional force and rotate certain angle, and arc friction plate and device above that can reset afterwards, the pipeline can keep the angle after the adjustment to the angle of pipeline is adjusted to intermittent type nature, the leakproofness to a plurality of positions of pipeline internal weld seam is convenient for detect, has improved the device and has examined the accuracy of time measuring to the pipeline.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present invention.

Fig. 2 is a schematic perspective view of a second embodiment of the present invention.

FIG. 3 is a schematic view of a first partial body structure according to the present invention.

Fig. 4 is a schematic perspective view of a push-down driving assembly according to the present invention.

FIG. 5 is a schematic view of a second partial body structure according to the present invention.

Fig. 6 is a partially cut-away perspective view of an adjustment assembly of the present invention.

Fig. 7 is a partially disassembled perspective view of the adjustment assembly of the present invention.

FIG. 8 is a schematic view of a partially cut-away perspective structure of a detection assembly of the present invention.

Fig. 9 is a schematic cross-sectional three-dimensional structure diagram of a unidirectional air outlet assembly of the present invention.

Fig. 10 is a perspective view of a third embodiment of the present invention.

Fig. 11 is a partially cut-away perspective view of the rotating assembly of the present invention.

Fig. 12 is a schematic view of a first partial body structure of the reduction assembly of the present invention.

Fig. 13 is a schematic view of a second partial body structure of the reduction assembly of the present invention.

FIG. 14 is a partially cut-away perspective view of the angular deflection assembly of the present invention.

Part names and serial numbers in the figure: 1_ installation floor frame, 21_ arc support frame, 22_ guide rod, 23_ arc friction plate, 3_ downward pressing drive assembly, 31_ L-shaped slotted frame, 32_ electric push rod, 33_ special-shaped pressing frame, 4_ adjusting assembly, 41_ N-shaped support frame, 42_ annular cavity frame, 43_ adjusting screw rod, 44_ slotted nut frame, 45_ arc-groove spline shaft, 46_ three-way connecting pipe, 47_ rubber jacking frame, 48_ sliding air outlet pipe, 5_ detection assembly, 51_ L-shaped connecting pipe, 52_ wedge-shaped piston rod, 53_ first return spring, 54_ L-shaped slotted frame, 55_ long slotted frame, 56_ short slotted frame, 57_ flexible hose, 58_ prompt rod, 59_ second return spring, 6_ one-way assembly, 61_ fixed valve body, 62_ sliding piston, 63_ third return spring, 7_ rotating assembly, 71_ sliding installation block, 72_ profiled slotted rack, 73_ spline housing, 74_ adjusting gear, 75_ pressing rack bar, 76_ fourth return spring, 77_ N type connecting rod, 78_ limit clip bar, 79_ coil spring, 8_ return assembly, 81_ fixed rack bar, 82_ rotating shaft, 83_ rotating large gear, 84_ overrunning clutch, 85_ rotating missing gear, 86_ fixed rack block, 9_ angular deflection assembly, 91_ arc rack, 92_ rising rack, 93_ fifth return spring, 94_ rectangular slotted rack, 95_ slotted rack, 96_ sixth return spring, 97_ wedge paddle bar, 98_ extension spring.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below by combining the specific drawings.

Example 1

A device for detecting the tightness of a welding seam of a pipeline connector is disclosed, as shown in figure 1, figure 2, figure 3, figure 4, figure 5, figure 6, figure 7, figure 8, figure 9, figure 10 and figure 11, and comprises a mounting floor frame 1, an arc-shaped support frame 21, a guide rod 22, an arc-shaped friction plate 23, a downward pressing driving assembly 3, an adjusting assembly 4, a detection assembly 5, a one-way air outlet assembly 6 and a rotating assembly 7, wherein the top of the mounting floor frame 1 is fixedly connected with the arc-shaped support frame 21, the upper part of the arc-shaped support frame 21 is fixedly connected with the guide rod 22, the arc-shaped friction plate 23 is rotatably connected with the arc-shaped support frame 21, the downward pressing driving assembly 3 is arranged on the mounting floor frame 1, the adjusting assembly 4 is used for adjusting the detection part according to the position of the inner welding seam of a pipeline, the detection assembly 5 is arranged on the adjusting assembly 4, the detection assembly 5 is used for detecting the tightness of the welding seam in the pipeline, the detection component 5 is provided with a one-way air outlet component 6, the one-way air outlet component 6 is used for enabling air to flow only in one direction, and the installation floor frame 1 is provided with a rotating component 7.

The downward pressing driving assembly 3 comprises an L-shaped perforated frame 31, an electric push rod 32 and a special-shaped pressing frame 33, the top of the installation floor frame 1 is connected with the L-shaped perforated frame 31 in a welding mode, the electric push rod 32 is fixedly installed on the upper portion of the L-shaped perforated frame 31, and the special-shaped pressing frame 33 is fixedly welded on a telescopic shaft of the electric push rod 32.

The adjusting component 4 comprises an N-shaped supporting frame 41, an annular cavity frame 42, an adjusting screw 43, a slotted nut frame 44, an arc-groove spline shaft 45, a three-way connecting pipe 46, a rubber jacking frame 47 and a sliding air outlet pipe 48, the top of the installation floor frame 1 is fixedly connected with the N-shaped supporting frame 41, the annular cavity frame 42 is fixedly welded on the right side of the upper part of the N-shaped supporting frame 41, the annular cavity frame 42 is rotatably connected with the adjusting screw 43, the adjusting screw 43 is positioned above the arc-shaped friction plate 23, the slotted nut frame 44 is connected on the adjusting screw 43 in a thread fit manner, the position of the slotted nut frame 44 can be adjusted by a worker rotating the adjusting screw 43, the arc-groove spline shaft 45 is rotatably connected on the left side of the slotted nut frame 44, six arc-shaped grooves are formed on the arc-groove spline shaft 45, the six three-way connecting pipes 46 are arranged on the slotted nut frame 44, the sliding air outlet pipe 48 is connected on the three-way connecting pipe 46, the sliding air outlet pipe 48 is communicated with the three-way connecting pipe 46, the sliding air outlet pipe 48 is connected with the slotted nut frame 44 in a sliding mode, the tail end of the sliding air outlet pipe 48 is fixedly connected with a rubber pushing frame 47, the rubber pushing frame 47 moves outwards to be tightly attached to an inner welding line of a pipeline, the rubber pushing frame 47 is movably matched with the arc groove spline shaft 45, and the arc groove spline shaft 45 plays a role in guiding the rubber pushing frame 47.

The detection component 5 comprises an L-shaped connecting pipe 51, a wedge-shaped piston rod 52, a first reset spring 53, an L-shaped slotting frame 54, a long-strip slotting frame 55, a short-strip slotting frame 56, a telescopic hose 57, a prompt rod 58 and a second reset spring 59, the bottom of the annular cavity frame 42 is communicated with the L-shaped connecting pipe 51, the right side of the L-shaped connecting pipe 51 is connected with the wedge-shaped piston rod 52 in a sliding manner, the wedge-shaped piston rod 52 is contacted with the special-shaped pressing frame 33, the special-shaped pressing frame 33 moves downwards to extrude the wedge-shaped piston rod 52 to move leftwards, the first reset spring 53 for resetting is connected between the wedge-shaped piston rod 52 and the L-shaped connecting pipe 51, the upper part of the N-shaped supporting frame 41 is welded with the two L-shaped slotting frames 54, the L-shaped slotting frames 54 are symmetrically arranged, the L-shaped slotting frames 54 are communicated with the annular cavity frame 42, the upper part of the N-shaped supporting frame 41 is fixedly connected with the two long-strip-shaped slotting frames 55, the long-strip-shaped slotting frames 55 are symmetrically arranged, the long-strip slotting bracket 55 is also communicated with the annular cavity bracket 42, the upper part of the N-shaped supporting frame 41 is fixedly connected with two short-strip slotting brackets 56, the short-strip slotting brackets 56 are symmetrically arranged, the short-strip slotting brackets 56 are also communicated with the annular cavity bracket 42, the L-shaped slotting bracket 54, the long-strip slotting bracket 55 and the short-strip slotting brackets 56 are linearly distributed, the left sides of the L-shaped slotting bracket 54, the long-strip slotting bracket 55 and the short-strip slotting bracket 56 are communicated with telescopic hoses 57, the telescopic hoses 57 can be stretched and contracted, the telescopic hoses 57 are communicated with the three-way connecting pipe 46, the L-shaped slotting bracket 54, the upper parts of the long-strip slotting frame 55 and the short-strip slotting frame 56 are connected with a prompting rod 58 in a sliding mode, a worker can judge the tightness of the pipeline by observing the state of the prompting rod 58, and second return springs 59 for returning are connected between the L-shaped slotting frame 54, the long-strip slotting frame 55 and the short-strip slotting frame 56 and the prompting rod 58 respectively.

One-way subassembly 6 of giving vent to anger is including fixed valve body 61, sliding piston 62 and third reset spring 63, L type fluting frame 54, rectangular fluting frame 55 and short fluting frame 56 right side all are equipped with fixed valve body 61, fixed valve body 61 inside sliding connection has sliding piston 62, be connected with the third reset spring 63 that is used for reseing between sliding piston 62 and the fixed valve body 61, cooperation through sliding piston 62 and third reset spring 63, make gas only can the uniflow.

The rotating assembly 7 comprises a sliding installation block 71, a special-shaped slotted frame 72, a spline housing 73, an adjusting gear 74, a downward-pressing rack bar 75, a fourth reset spring 76, an N-shaped connecting rod 77, a limiting clamping rod 78 and a spiral spring 79, the sliding installation block 71 is slidably connected to the left side of the top of the installation floor frame 1, the special-shaped slotted frame 72 is fixedly welded to the upper portion of the sliding installation block 71, the special-shaped slotted frame 72 is rotatably connected with the spline housing 73, the spline housing 73 is sleeved with a cambered spline shaft 45, the cambered spline shaft 45 penetrates through the spline housing 73, the adjusting gear 74 is welded to the spline housing 73, the downward-pressing rack bar 75 is slidably connected to the special-shaped slotted frame 72, the downward-pressing rack bar 75 is meshed with the adjusting gear 74, four fourth reset springs 76 for resetting are connected between the downward-pressing rack bar 75 and the special-shaped slotted frame 72, the N-shaped connecting rod 77 is connected to the top of the special-shaped sliding frame 33 in a welding mode, the N-shaped connecting rod 77 is in contact with the downward pressing rack rod 75, the front part of the special-shaped slotted frame 72 is connected with a limiting clamping rod 78 in a sliding mode, the limiting clamping rod 78 is in contact with the downward pressing rack rod 75, the limiting clamping rod 78 is used for clamping the downward pressing rack rod 75, and a spiral spring 79 for resetting is connected between the limiting clamping rod 78 and the special-shaped slotted frame 72.

When the tightness detection of the inner welding seam of the pipeline is needed, firstly, a worker rotates the adjusting screw 43, the slotted nut frame 44 and the device on the slotted nut frame 44 move rightwards through the matching of the adjusting screw 43 and the slotted nut frame 44, so that the arc-groove spline shaft 45 is separated from the spline housing 73, then the worker manually pulls the sliding mounting block 71 and the device on the sliding mounting block to move forwards, the sliding mounting block 71 and the device on the sliding mounting block are prevented from blocking the placement of a subsequent pipeline, the pipeline to be detected is placed on the arc-shaped friction plate 23 through other equipment, then the worker manually pushes the sliding mounting block 71 and the device on the sliding mounting block to reset backwards, the worker reversely rotates the adjusting screw 43, the slotted nut frame 44 and the device on the sliding mounting block 44 move leftwards, so that the arc-groove spline shaft 45 is in sliding fit with the spline housing 73 again, the arc-groove spline shaft 45 penetrates through the pipeline to be detected, and while the adjusting screw 43 is rotated, the positions of the slotted nut frame 44 and the device thereon can be adjusted to enable the rubber jacking frame 47 to be aligned with the inner welding seam of the pipeline to be detected, so that the device is suitable for detecting pipelines with different inner welding seam positions, and the function of conveniently adjusting the detection position is achieved.

Then the operator manually controls the electric push rod 32 to contract, the electric push rod 32 drives the special-shaped pressing frame 33 and the upper device thereof to move downwards, the N-shaped connecting rod 77 drives the pressing rack bar 75 to move downwards, the limiting clamping rod 78 clamps the pressing rack bar 75 through the matching of the limiting clamping rod 78 and the spiral spring 79, the pressing rack bar 75 moves downwards to drive the adjusting gear 74 and the upper device thereof to rotate, the spline sleeve 73 drives the arc-groove spline shaft 45 and the upper device thereof to rotate, the rubber pushing frame 47 and the upper device thereof move outwards under the guiding action of the arc-groove spline shaft 45, so that the rubber pushing frame 47 is tightly attached to the inner welding line of the pipeline to be tested, the special-shaped pressing frame 33 pushes the wedge-shaped piston rod 52 to move leftwards while the special-shaped pressing frame 33 and the upper device thereof move downwards, the first return spring 53 is compressed therewith, so that the wedge-shaped piston rod 52 extrudes the L-shaped connecting pipe 51 and the gas inside the annular cavity frame 42 and the upper device thereof, through the cooperation of the sliding piston 62 and the third return spring 63, gas can only flow to the L-shaped slotted frame 54, the long slotted frame 55 and the short slotted frame 56 from the annular cavity frame 42 in a one-way mode respectively, if the sealing performance of an inner welding seam at one position of a pipeline is poor, the gas in the annular cavity frame 42 and the device on the annular cavity frame can be discharged through one sliding gas outlet pipe 48, and the prompting rod 58 cannot react; if the leakproofness of the inner weld of the pipeline is good, the annular cavity frame 42 and the gas in the device on the annular cavity frame cannot be discharged through the sliding gas outlet pipe 48, the prompt rod 58 can be upwards pushed by the gas, the second return spring 59 can be compressed accordingly, the leakproofness of the inner weld of the pipeline can be judged by observing the state of the prompt rod 58 by a worker, the distance of the upward movement of the prompt rod 58 is more, the better the leakproofness of the inner weld of the pipeline is shown, and the purpose of conveniently detecting the leakproofness of the inner weld of the pipeline is achieved.

Then, the operator manually controls the electric push rod 32 to extend, the special-shaped pressing frame 33 and the device on the special-shaped pressing frame can reset upwards, the wedge-shaped piston rod 52 and the device on the wedge-shaped piston rod can reset reversely, the downward pressing rack rod 75 is clamped by the limiting clamping rod 78, the downward pressing rack rod 75 and the device on the lower rack rod cannot reset temporarily, and the reciprocating operation is carried out, the operator manually controls the electric push rod 32 to stretch and retract for multiple times, and the device can detect the tightness of the welding line in the pipeline for multiple times, so that the error is reduced, and the accuracy of the device in detecting the tightness of the welding line in the pipeline is improved; when the detection is finished, the worker manually pulls the limiting clamping rod 78 to move forwards, so that the limiting clamping rod 78 does not clamp the downward-pressing rack rod 75, the downward-pressing rack rod 75 and the upper device thereof can reset reversely, the rubber ejection frame 47 does not eject the inner wall of the pipeline, then the worker loosens the limiting clamping rod 78, the spiral spring 79 resets and drives the limiting clamping rod 78 to reset, the worker rotates the adjusting screw 43 to separate the arc groove spline shaft 45 from the spline sleeve 73, the worker manually slides the mounting block 71 and the upper device thereof to move away, and the pipeline which is detected is taken out through other equipment. The tightness of the inner weld of the next pipeline can be detected by repeating the operation.

Example 2

On the basis of embodiment 1, as shown in fig. 12 and 13, the N-type supporting frame is further provided with a resetting component 8, the resetting component 8 is arranged on the N-type supporting frame 41, the resetting component 8 comprises a fixed rack rod 81, a rotating shaft 82, a rotating large gear 83, an overrunning clutch 84, a rotating missing gear 85 and a fixed rack block 86, the fixed rack rod 81 is welded on the special-shaped pressing frame 33, the rotating shaft 82 is rotatably connected to the front portion of the N-type supporting frame 41, the overrunning clutch 84 is arranged on the right side of the rotating shaft 82, the overrunning clutch 84 only transmits one-way power, the rotating large gear 83 is fixedly connected to the overrunning clutch 84, the rotating large gear 83 is meshed with the fixed rack rod 81, the rotating missing gear 85 is welded on the left side of the rotating shaft 82, the fixed rack block 86 is fixedly connected to the front end of the limiting clamping rod 78, and the fixed rack block 86 is located below the rotating missing gear 85.

The special-shaped pressing frame 33 moves downwards to drive the fixed rack bar 81 to move downwards, the fixed rack bar 81 can drive the rotating large gear 83 and the upper device thereof to rotate by a certain angle, when the special-shaped pressing frame 33 resets upwards, the fixed rack bar 81 can drive the large gear to rotate reversely, under the action of the clutch, the rotating shaft 82 and the upper device thereof cannot rotate, after the fixed rack bar 81 and the upper device reciprocate for a plurality of times, the rotating gear 85 can drive the fixed rack block 86 and the upper device thereof to move forwards, so that the limiting clamping bar 78 does not clamp the pressing rack bar 75, the rotating gear 85 can be separated from the fixed rack block 86, the limiting clamping bar 78 can be clamped on the pressing rack bar 75 again, the limiting clamping bar 78 is manually pulled instead of a person, and the pipeline can be conveniently detected for a plurality of times to reduce errors.

Example 3

On the basis of embodiment 2, as shown in fig. 11 and 14, the installation floor frame comprises an angle deflection assembly 9, the angle deflection assembly 9 is arranged on the installation floor frame 1 and connected with the special-shaped slotted frame 72, the angle deflection assembly 9 is used for adjusting the angle of the pipeline so as to detect the tightness of a plurality of positions of welding seams in the pipeline, the angle deflection assembly 9 comprises an arc-shaped rack frame 91, a rising rack frame 92, a fifth return spring 93, a rectangular slotted frame 94, a slotted rack frame 95, a sixth return spring 96, a wedge-shaped poking rod 97 and an extension spring 98, the arc-shaped rack frame 91 is welded at the left side of the bottom of the arc-shaped friction plate 23, the special-shaped slotted frame 72 is connected with the rising rack frame 92 in a sliding manner, the rising rack frame 92 is also meshed with the adjusting gear 74, the adjusting gear 74 is arranged between the rising rack frame 92 and the downward pressing rack bar 75, four fifth return springs 93 for returning are connected between the rising rack frame 92 and the special-shaped slotted frame 72, the top rigid coupling of installation floor frame 1 has rectangle slotted rack 94, and sliding type is connected with fluting rack 95 on rectangle slotted rack 94, and fluting rack 95 and arc rack 91 mesh are connected with two sixth reset spring 96 that are used for reseing between fluting rack 95 and the rectangle slotted rack 94, and the sliding type is connected with wedge poker rod 97 behind the fluting rack 95, and wedge poker rod 97 contacts with the rack 92 that rises, is connected with extension spring 98 between wedge poker rod 97 and the fluting rack 95.

When the downward-pressing rack bar 75 moves downwards, the downward-pressing rack bar 75 drives the upward rack frame 92 to move upwards through the adjusting gear 74, so that the upward rack frame 92 does not limit the wedge-shaped poking rod 97 any more, the stretched extension spring 98 can recover and drive the wedge-shaped poking rod 97 and the device on the wedge-shaped poking rod to move forwards, the wedge-shaped poking rod 97 can not block the subsequent downward movement of the special-shaped pressing frame 33, the device can detect the pipeline for many times, then the limiting clamping rod 78 can not clamp the downward-pressing rack bar 75 any more, the upward return of the downward-pressing rack bar 75 can drive the upward rack frame 92 to return downwards through the adjusting gear 74, the downward return of the upward rack frame 92 can drive the wedge-shaped poking rod 97 to return backwards, at the moment, the upward movement of the special-shaped pressing frame 33 can drive the wedge-shaped poking rod 97 and the device on the wedge-pressing rack bar 97 to move upwards, the slotted rack frame 95 can drive the arc-shaped rack frame 91 and the device on the arc-shaped rack frame to rotate for a certain angle, at this time, the rubber pushing frame 47 no longer pushes against the inner wall of the pipeline, the arc friction plate 23 rotates to drive the pipeline to rotate a certain angle through friction force, then the electric push rod 32 continues to operate, the electric push rod 32 drives the special-shaped pressing frame 33 and the upper device thereof to move downwards, the N-shaped connecting rod 77 further pushes the downward pressing rack bar 75 to move downwards, the rubber pushing frame 47 again pushes against the inner wall of the pipeline, meanwhile, the special-shaped pressing frame 33 does not push the wedge poking rod 97 any more downwards, the sixth reset spring 96 resets accordingly and drives the wedge poking rod 97 and the upper device thereof to reset downwards, the slotted rack frame 95 drives the arc rack frame 91 and the upper device thereof to reset in a reverse rotation manner, because the rubber pushing frame 47 pushes against the inner wall of the pipeline at this time, the arc friction plate 23 resets in a reverse rotation manner and does not drive the pipeline to reset, so that the pipeline is kept at the adjusted angle, and then the device detects another part of a welding seam in the pipeline, reciprocating like this, being convenient for switch over the position of pipeline and detecting the leakproofness at a plurality of positions of pipeline internal weld, prevent the condition that the partial position of pipeline internal weld did not detect.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The device for detecting the welding seam tightness of the pipeline connector is characterized by comprising a mounting floor frame (1), an arc-shaped support frame (21), a guide rod (22), an arc-shaped friction plate (23), a pressing driving assembly (3), an adjusting assembly (4), a detecting assembly (5), a one-way air outlet assembly (6) and a rotating assembly (7);

the top of the installation floor frame (1) is fixedly connected with an arc-shaped support frame (21);

the upper part of the arc-shaped support frame (21) is fixedly connected with a guide rod (22);

the arc friction plate (23) is rotationally connected to the arc support frame (21);

the pressing driving component (3) is arranged on the installation floor frame (1);

the adjusting component (4) is arranged on the installation floor frame (1), and the adjusting component (4) is used for adjusting the detection part according to the position of the inner welding line of the pipeline;

the detection assembly (5) is arranged on the adjusting assembly (4), and the detection assembly (5) is used for detecting the airtightness of the welding line in the pipeline;

the unidirectional air outlet assembly (6) is arranged on the detection assembly (5);

the rotating assembly (7) is arranged on the installation floor frame (1).

2. The device for detecting the tightness of the welding seams of the pipeline connectors according to claim 1, wherein the pressing driving assembly (3) comprises an L-shaped hole-opening frame (31), an electric push rod (32) and a special-shaped pressing frame (33), the L-shaped hole-opening frame (31) is fixedly connected to the top of the installation floor frame (1), the electric push rod (32) is fixedly installed on the upper portion of the L-shaped hole-opening frame (31), and the special-shaped pressing frame (33) is fixedly connected to a telescopic shaft of the electric push rod (32).

3. The device for detecting the tightness of the welding seam of the pipeline connector according to claim 2, wherein the adjusting component (4) comprises an N-shaped supporting frame (41), a ring-shaped cavity frame (42), an adjusting screw rod (43), a slotted nut frame (44), an arc-groove spline shaft (45), a three-way connecting pipe (46), a rubber jacking frame (47) and a sliding air outlet pipe (48), the N-shaped supporting frame (41) is fixedly connected to the top of the installation floor frame (1), the ring-shaped cavity frame (42) is fixedly connected to the right side of the upper part of the N-shaped supporting frame (41), the adjusting screw rod (43) is rotatably connected to the ring-shaped cavity frame (42), the adjusting screw rod (43) is positioned above the arc-shaped friction plate (23), the slotted nut frame (44) is connected to the adjusting screw rod (43) in a thread fit manner, the arc-groove spline shaft (45) is rotatably connected to the left side of the slotted nut frame (44), six arc-shaped grooves are formed in the arc-groove spline shaft (45), six three-way connecting pipes (46) are arranged on the slotted nut frame (44), a sliding air outlet pipe (48) is connected onto the three-way connecting pipes (46) in a sliding mode, the sliding air outlet pipe (48) is communicated with the three-way connecting pipes (46), the sliding air outlet pipe (48) is connected with the slotted nut frame (44) in a sliding mode, a rubber pushing frame (47) is fixedly connected to the tail end of the sliding air outlet pipe (48), and the rubber pushing frame (47) is movably matched with the arc-shaped grooves of the arc-groove spline shaft (45).

4. The device for detecting the tightness of the welding seam of the pipeline connector according to claim 3, wherein the detection assembly (5) comprises an L-shaped connecting pipe (51), a wedge-shaped piston rod (52), a first return spring (53), an L-shaped slotted frame (54), a long slotted frame (55), a short slotted frame (56), a flexible hose (57), a prompting rod (58) and a second return spring (59), the L-shaped connecting pipe (51) is communicated with the bottom of the annular cavity frame (42), the wedge-shaped piston rod (52) is connected to the right side of the L-shaped connecting pipe (51) in a sliding manner, the wedge-shaped piston rod (52) is in contact with the special-shaped pressing frame (33), the first return spring (53) is connected between the wedge-shaped piston rod (52) and the L-shaped connecting pipe (51), the two L-shaped slotted frames (54) are fixedly connected to the upper part of the N-shaped supporting frame (41), and the L-shaped slotted frames (54) are symmetrically arranged, l-shaped slotting brackets (54) are communicated with a ring-shaped cavity frame (42), two long-strip slotting brackets (55) are fixedly connected to the upper portion of an N-shaped supporting frame (41), the long-strip slotting brackets (55) are symmetrically arranged, the long-strip slotting brackets (55) are also communicated with the ring-shaped cavity frame (42), two short-strip slotting brackets (56) are fixedly connected to the upper portion of the N-shaped supporting frame (41), the short-strip slotting brackets (56) are symmetrically arranged, the short-strip slotting brackets (56) are also communicated with the ring-shaped cavity frame (42), telescopic hoses (57) are communicated with the left sides of the long-strip slotting brackets (55) and the short-strip slotting brackets (56), the telescopic hoses (57) are communicated with a three-way connecting pipe (46), the L-shaped slotting brackets (54), the long-strip slotting brackets (55) and the upper portions of the short-strip slotting brackets (56) are connected with prompt rods (58) in a sliding manner, prompt rods (58) are connected between the L-shaped slotting brackets (54), the long-strip slotting brackets (55) and the short-strip slotting brackets (56) and a second reset prompt spring (59), and reset springs (59) are connected between the slotting rods (58) respectively ).

5. The device for detecting the tightness of the welding seam of the pipeline connector according to claim 4, wherein the one-way air outlet assembly (6) comprises a fixed valve body (61), a sliding piston (62) and a third return spring (63), the fixed valve body (61) is arranged on the right side of the L-shaped slotted frame (54), the long slotted frame (55) and the short slotted frame (56), the sliding piston (62) is connected inside the fixed valve body (61) in a sliding manner, and the third return spring (63) is connected between the sliding piston (62) and the fixed valve body (61).

6. The pipeline connector weld tightness detection device according to claim 5, wherein the rotating assembly (7) comprises a sliding installation block (71), a special-shaped slotted frame (72), a spline housing (73), an adjusting gear (74), a downward pressing rack bar (75), a fourth reset spring (76), an N-shaped connecting rod (77), a limiting clamping rod (78) and a spiral spring (79), the sliding installation block (71) is slidably connected to the left side of the top of the installation floor frame (1), the special-shaped slotted frame (72) is fixedly connected to the upper portion of the sliding installation block (71), the spline housing (73) is rotatably connected to the special-shaped slotted frame (72), the spline housing (73) is sleeved with the arc-groove spline shaft (45), the arc-groove spline shaft (45) penetrates through the spline housing (73), the spline housing (73) is fixedly connected with the adjusting gear (74), the downward pressing rack bar (75) is slidably connected to the special-shaped slotted frame (72), the downward pressing rack rod (75) is meshed with the adjusting gear (74), four fourth reset springs (76) are connected between the downward pressing rack rod (75) and the special-shaped slotting frame (72), an N-shaped connecting rod (77) is fixedly connected to the top of the special-shaped pressing frame (33), the N-shaped connecting rod (77) is in contact with the downward pressing rack rod (75), the front portion of the special-shaped slotting frame (72) is connected with a limiting clamping rod (78) in a sliding mode, the limiting clamping rod (78) is in contact with the downward pressing rack rod (75), and a spiral spring (79) is connected between the limiting clamping rod (78) and the special-shaped slotting frame (72).

7. The device for detecting the tightness of the welding seam of the pipeline connector according to claim 6, which is characterized by further comprising a reset component (8), wherein the reset component (8) is arranged on the N-shaped support frame (41), the reset component (8) comprises a fixed rack rod (81), a rotating shaft (82), a rotating large gear (83), an overrunning clutch (84), a rotating missing gear (85) and a fixed rack block (86), the fixed rack rod (81) is fixedly connected to the special-shaped pressing frame (33), the rotating shaft (82) is rotatably connected to the front portion of the N-shaped support frame (41), the overrunning clutch (84) is arranged on the right side of the rotating shaft (82), the rotating large gear (83) is fixedly connected to the overrunning clutch (84), the rotating large gear (83) is meshed with the fixed rack rod (81), the rotating missing gear (85) is fixedly connected to the left side of the rotating shaft (82), the fixed rack block (86) is fixedly connected to the front end of the limiting clamping rod (78), the rotation missing gear (85) is meshed with the fixed rack block (86).

8. The pipeline connector weld tightness detection device according to claim 7, further comprising an angle deflection assembly (9), wherein the angle deflection assembly (9) is arranged on the installation floor frame (1) and connected with the special-shaped slotted frame (72), the angle deflection assembly (9) comprises an arc-shaped rack frame (91), a lifting rack frame (92), a fifth reset spring (93), a rectangular slotted frame (94), a slotted rack frame (95), a sixth reset spring (96), a wedge-shaped toggle rod (97) and an extension spring (98), the arc-shaped rack frame (91) is fixedly connected to the left side of the bottom of the arc-shaped friction plate (23), the lifting rack frame (92) is slidably connected on the special-shaped slotted frame (72), the lifting rack frame (92) is also meshed with the adjusting gear (74), and a fourth reset spring (93) is connected between the lifting rack frame (92) and the special-shaped slotted frame (72), installation floor frame (1) top rigid coupling has rectangle slotted frame (94), sliding type is connected with fluting rack (95) on rectangle slotted frame (94), fluting rack (95) and arc rack (91) meshing, be connected with two sixth reset spring (96) between fluting rack (95) and rectangle slotted frame (94), sliding type is connected with wedge poker rod (97) behind fluting rack (95), wedge poker rod (97) and rising rack (92) contact, be connected with extension spring (98) between wedge poker rod (97) and fluting rack (95).