Quick positive pressure leak detection device
Technical field
The utility model is related to sealing test technical field, more particularly to positive pressure leak detection technical field, specifically refers to one kind
Quick positive pressure leak detection device.
Background technology
The manual water press testing machine of main flow, is widely used in after the water channel of welding, air flue and cavity welding in the market
Sealing test.
As shown in Figures 1 to 4, common tested part 1 includes upper strata 11, weld layer 12 and lower floor 13, weld layer 12
Between upper strata 11 and lower floor 13, weld layer 12 be symmetrically arranged C-shaped so that upper strata 11, weld layer 12 and lower floor 13 it
Between form cooling water channel 14, and form water inlet 15 and delivery port 16 at the two ends of tested part 1, water inlet 15 passes through cooling water
Road 14 connects delivery port 16.Due to the presence of weld layer 12, it is therefore desirable to between weld layer 12 and upper strata 11 and weld layer 12
Sealing test is carried out between lower floor 13.
Generally include hydraulic press, pressure gauge, connecting tube, pipeline for the manual water press testing machine of above-mentioned tested part 1 and connect
Mouth, pipe joint and test fixture, pressure gauge are arranged on hydraulic press, and the delivery port of hydraulic press is connect by connecting tube connecting line
Mouthful, test fixture includes frock main body, part and installs station and access passage, and part installs station and access passage is arranged at
In frock main body, one end connecting line joint of passage is accessed.Above-mentioned tested part 1 is arranged on part during test station is installed
On, the other end connection water inlet 15 of access passage, and delivery port 16 is sealed, pipe interface is connected with pipe joint, then
Suppress and pressurize.
Specifically, part installs station and generally includes the first fixed block, the second fixed block, movable block and Top fastening screw, the
One fixed block and the second fixed block be installed in frock main body and it is spaced set, movable block is located at the first fixed block and the
Between two fixed blocks and adjacent to the second fixed block, Top fastening screw is threadably engaged in the second fixed block and is used to push away against movable block
Dynamic movable block is moved towards the first fixed block, and access passage is arranged in movable block.When then testing, tested part 1 is arranged on
Between first fixed block and movable block, movable block, the fixed block of tested part 1 and first are held out against by Top fastening screw, delivery port
16 are sealed by the first fixed block.
However, manual water press testing machine has following inconvenient in use;
1st, due to the pipe joint on the test fixture of tested part generally with the pipe interface in the connecting tube of hydraulic press
Mismatch, therefore need the pipe interface in the connecting tube according to hydraulic press to remanufacture the company with hydraulic press in use
The pipe joint of pipe interface docking in adapter;
2nd, because a hydraulic press can only test a part, the service efficiency of hydraulic press is very low, in batch production, special
It is not that some parts need pressurize more than 24 hours, it is necessary to purchase very many hydraulic presses, increases manufacturing cost, otherwise test
Time is oversize, and testing efficiency is too low, influences the time of delivery;
3rd, because the joint connected in whole manual water press testing machine is more, pipeline is long, is easily just had in hydraulic press part
Seepage, causes the erroneous judgement to part sealing;
4th, for the part of some cavity small volumes, there is longer flexible pipe (connecting tube) coupling part, install take compared with
Big working space, the loosening of flexible pipe and puts, can build-up of pressure value change, the value of detection has error;
5th, install inconvenient, it is cumbersome.
Accordingly, it is desirable to provide a kind of quick positive pressure leak detection device, it can greatly improve the service efficiency of hydraulic press, accelerate
The batch detection of part volume, reduces manufacturing cost, it is ensured that the time of delivery, and easy for installation quick, and detection is accurately and reliably.
Utility model content
In order to overcome above-mentioned shortcoming of the prior art, a purpose of the present utility model is to provide a kind of quick malleation
Leakage detection apparatus, it can greatly improve the service efficiency of hydraulic press, accelerate the batch detection of part volume, reduce manufacturing cost,
Ensure the time of delivery, suitable for large-scale promotion application.
Another object of the present utility model is a kind of quick positive pressure leak detection device of offer, and its is ingenious in design, simple for structure,
It is easy for installation quick, detect accurately and reliably, suitable for large-scale promotion application.
To achieve the above objectives, quick positive pressure leak detection device of the present utility model, including test fixture and pipe joint, institute
State test fixture and station and access passage are installed including frock main body, part, the part installs station and the access passage
Be arranged in the frock main body, one end of the access passage connects the pipe joint, is characterized in, it is described it is quick just
Leakage detection apparatus is pressed also to include pipeline on-off switch, one end of described access passage connects described by the pipeline on-off switch
Pipe joint.
It is preferred that the pipeline on-off switch is valve.
More preferably, the valve is DN25 valves.
It is preferred that the pipe joint is quick connector, the quick positive pressure leak detection device also includes hydraulic press, connecting tube
And pipe interface, the delivery port of the hydraulic press connects the pipe interface by the connecting tube, the pipe interface be with
The fast interface of the quick connector matching.
More preferably, the quick connector is C formula quick connectors, and the fast interface is the fast interface of C formulas.
Include the first fixed block, the second fixed block, movable block it is preferred that the part installs station and hold out against part, institute
State the first fixed block and second fixed block is installed in the frock main body and spaced setting, the movable block position
Between first fixed block and second fixed block and adjacent to second fixed block, the part that holds out against is born against
Second fixed block and the movable block are used to promote the movable block to move towards first fixed block, and the access is logical
Road is arranged in the movable block.
More preferably, the quick positive pressure leak detection device also includes being provided with pressure measurement unit, first fixed block
Measuring pressure passage, one end of the measuring pressure passage connects the pressure measurement unit, and the other end of the measuring pressure passage is used to connect
The delivery port of tested part.
Further, the pressure measurement unit is pressure gauge.
More preferably, the part that holds out against is Top fastening screw, and the Top fastening screw is threadably engaged in second fixed block
And be used to promote the movable block to move towards first fixed block against the movable block.
The beneficial effects of the utility model are essentially consisted in:
1st, quick positive pressure leak detection device of the present utility model includes test fixture, pipe joint and pipeline on-off switch, surveys
Trial work dress includes frock main body, part and installs station and access passage, and part installs station and access passage is arranged at frock
In main body, one end of passage is accessed by pipeline on-off switch connecting line joint, in use, can pass through after end is suppressed
Pipeline on-off switch closes access passage can carry out pressurize without hydraulic press, and therefore, it can greatly improve hydraulic press
Service efficiency, accelerate part volume batch detection, reduce manufacturing cost, it is ensured that the time of delivery, suitable for large-scale promotion should
With.
2nd, quick positive pressure leak detection device of the present utility model includes test fixture, pipe joint and pipeline on-off switch, surveys
Trial work dress includes frock main body, part and installs station and access passage, and part installs station and access passage is arranged at frock
In main body, one end of passage is accessed by pipeline on-off switch connecting line joint, in use, can pass through after end is suppressed
Pipeline on-off switch closes access passage can carry out pressurize without hydraulic press, and therefore, its is ingenious in design, simple for structure,
It is easy for installation quick, detect accurately and reliably, suitable for large-scale promotion application.
These and other objects of the present utility model, feature and advantage, by following detailed descriptions, accompanying drawing and right will
Try to achieve to fully demonstrate, and can be achieved by the means specially pointed out in appended claims, device and combinations thereof.
Brief description of the drawings
Fig. 1 is the volume rendering schematic diagram of common tested part.
Fig. 2 is the schematic front view of the common tested part shown in Fig. 1.
Fig. 3 is the schematic top plan view of the common tested part shown in Fig. 1.
Fig. 4 is the schematic cross-sectional view of A-A positions in Fig. 3.
Fig. 5 is to detect tested shown in Fig. 1 using a specific embodiment of quick positive pressure leak detection device of the present utility model
The sectional perspective schematic diagram of part.
Fig. 6 is the main view partial schematic sectional view of the structure shown in Fig. 5.
(symbol description)
1 tested part;11 upper stratas;12 weld layers;13 lower floors;14 cooling water channels;15 water inlets;16 delivery ports;2 test works
Dress;21 frock main bodys;22 parts install station;23 access passages;24 first fixed blocks;25 second fixed blocks;26 movable blocks;27
Hold out against part;28 measuring pressure passages;3 pipe joints;4 pipeline on-off switches;5 pressure measurement units.
Embodiment
In order to be more clearly understood that technology contents of the present utility model, described in detail especially exemplified by following examples.
Refer to shown in Fig. 5 to Fig. 6, in a specific embodiment of the present utility model, quick malleation of the present utility model
Leakage detection apparatus includes test fixture 2, pipe joint 3 and pipeline on-off switch 4, and the test fixture 2 includes frock main body 21, zero
Part installs station 22 and access passage 23, and the part installs station 22 and the access passage 23 is arranged at the frock master
On body 21, one end of the access passage 23 connects the pipe joint 3 by the pipeline on-off switch 4.
The pipeline on-off switch 4 can be any suitable pipeline on-off switch, refer to shown in Fig. 5 to Fig. 6, at this
In one specific embodiment of utility model, the pipeline on-off switch 4 is valve.
The valve can be any suitable valve, and in a specific embodiment of the present utility model, the valve is
DN25 valves, i.e. valve internal diameter are 25mm.
In order to realize the quick connection with hydraulic press, in a specific embodiment of the present utility model, the pipe joint 3
Quick connector, the quick positive pressure leak detection device also include hydraulic press (not shown), connecting tube (not shown) and
Pipe interface (not shown), the delivery port of the hydraulic press connects the pipe interface, the pipe by the connecting tube
Road interface is the fast interface matched with the quick connector.Obviously, pipe joint 3 and pipe interface can with transposition,
That is, quick connector and fast interface can be with transpositions.
The quick connector can be any suitable quick connector, and the quick connector is C formula quick connectors, described fast
Interface is the fast interface of C formulas, and C formulas quick connector and the fast interface grafting of C formulas constitute C formula snap joints, and it is common commercially available
Product, in a specific embodiment of the present utility model, the C formulas quick connector is PM20C formula quick connectors, and the C formulas are fast
Interface is the fast interface of SM20C formulas.
The part is installed station 22 and can be suitably composed with any, refers to shown in Fig. 5 to Fig. 6, in this practicality
In a new specific embodiment, the part, which installs station 22, includes the first fixed block 24, the second fixed block 25, movable block 26
With hold out against part 27, first fixed block 24 and second fixed block 25 are installed in the frock main body 21 and mutually
It is arranged at intervals, the movable block 26 is located between first fixed block 24 and second fixed block 25 and adjacent to described second
Fixed block 25, the part 27 that holds out against bears against second fixed block 25 and the movable block 26 for promoting the activity
Block 26 is moved towards first fixed block 24, and the access passage 23 is arranged in the movable block 26.
For the pressure change inside more accurate measurement tested part 1, refer to shown in Fig. 5 to Fig. 6, in this practicality
In a new specific embodiment, the quick positive pressure leak detection device also includes pressure measurement unit 5, first fixed block 24
In be provided with measuring pressure passage 28, one end of the measuring pressure passage 28 connects the pressure measurement unit 5, the measuring pressure passage 28
The other end is used for the delivery port 16 for connecting tested part 1.
The pressure measurement unit 5 can be any suitable pressure measurement unit, refer to shown in Fig. 5 to Fig. 6, at this
In one specific embodiment of utility model, the pressure measurement unit 5 is pressure gauge.
It is described hold out against part 27 can be it is any suitably hold out against part, refer to shown in Fig. 5 to Fig. 6, it is new in this practicality
In one specific embodiment of type, the part 27 that holds out against is Top fastening screw, and the Top fastening screw is threadably engaged in described second and consolidated
Determine to be used to promote the movable block 26 to move towards first fixed block 24 in block 25 and against the movable block 26.
During measurement, tested part 1 is arranged on part and installed on station 22, the other end connection water inlet of access passage 23
15, and delivery port 16 is sealed, pipe interface is connected with pipe joint 3, is then suppressed and pressurize.
Station 22 is installed including the first fixed block 24, the second fixed block 25, movable block 26 in part and part 27 is held out against
In the case of, by tested part 1 be arranged between the first fixed block 24 and movable block 26, by hold out against part 27 by movable block 26,
The fixed block 24 of tested part 1 and first is held out against, the connection delivery port 16 of measuring pressure passage 28, is then suppressed and pressurize.Tested part 1
180 degree installation can be rotated, then delivery port 16 will be connected by accessing the other end of passage 23, and measuring pressure passage 28 will connect water inlet
15.Access passage 23 can also be arranged in the first fixed block 24, measuring pressure passage 28 is arranged in movable block 26.
Therefore, pipeline on-off switch 4 is set between one end of access passage 23 of the present utility model and pipe joint 3, can
After on-off switch 4 of installing, suppress and blind off a line, to remove hydraulic press, suppressed time is only taken up, and when being not take up pressurize
Between, it can significantly lift the service efficiency of hydraulic press;Pipe joint 3 and pipe interface use quick connector and fast interface,
Convenient handling;The malleation of different parts can be installed on using the pipe joint 3 and pipe interface of quick connector and fast interface
In leakage detection apparatus, it is adaptable to which different parts leak hunting;Because pressure measurement unit 5 is disposed proximate to the place of tested part 1, pressure
Force value will not be by external interference, and detected value is identical with the numerical value that pressure measurement unit 5 reflects, and observation and record are more convenient,
Understand.
To sum up, quick positive pressure leak detection device of the present utility model can greatly improve the service efficiency of hydraulic press, accelerate to criticize
The batch detection of part is measured, manufacturing cost is reduced, it is ensured that the time of delivery, and it is ingenious in design, it is simple for structure, it is easy for installation quick,
Detect accurately and reliably, suitable for large-scale promotion application.
As can be seen here, the purpose of this utility model is achieved completely and effectively.Function of the present utility model and
Structural principle is shown and illustrated in embodiment, under without departing substantially from the principle, and embodiment can make any modification.Institute
So that the utility model includes all variant embodiments based on claim spirit and right.