CN215811449U - Simple device for detecting air tightness of large-caliber steel-plastic conversion pipe fitting - Google Patents
Simple device for detecting air tightness of large-caliber steel-plastic conversion pipe fitting Download PDFInfo
- Publication number
- CN215811449U CN215811449U CN202121494886.1U CN202121494886U CN215811449U CN 215811449 U CN215811449 U CN 215811449U CN 202121494886 U CN202121494886 U CN 202121494886U CN 215811449 U CN215811449 U CN 215811449U
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- air
- detecting
- simple device
- caliber steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Examining Or Testing Airtightness (AREA)
Abstract
The utility model discloses a simple device for detecting the air tightness of a large-caliber steel-plastic conversion pipe fitting, which belongs to the technical field of pipe fitting air tightness detection devices. The utility model has simple structure, convenient operation, low economic cost and wide applicability.
Description
Technical Field
The utility model belongs to the technical field of pipe fitting air tightness detection devices, and particularly relates to a simple device for detecting air tightness of a large-caliber steel-plastic conversion pipe fitting.
Background
The sealing performance is one of the most important performances of the steel-plastic conversion pipe fitting, and if leakage occurs in a gas pipeline system, the leakage can bring serious influence on the life and property safety of people. Therefore, the sealing performance test of the steel-plastic conversion pipe fitting is also the most important ring in the production process.
At present, the steel-plastic conversion pipe fitting with the medium and small caliber (specification of dn63mm and below) has relatively small volume and light weight, can be generally inspected by multi-station special equipment, has higher efficiency and stronger operability, but has larger volume and weight along with the increase of the specification of the steel-plastic pipe fitting, particularly the steel-plastic pipe fitting with the specification of dn250mm and above, larger manual operation difficulty and larger carrying, moving and protecting difficulty, and has higher detection equipment cost for manufacturing the pipe fitting with the large caliber. Meanwhile, with the increase of the specification, the actual usage amount is reduced, which causes the problem that the investment of detection equipment is large, but the actual usage frequency is low.
Secondly, some producers adopt elastomers such as silica gel pad to cover steel plastic pipe spare both ends, reuse hydro-cylinder or cylinder directly compress tightly sealed mode with pipe fitting both ends, because the pressure of cylinder and hydro-cylinder is difficult accurate the regulation, produce two kinds of extreme problems easily, one is that cylinder or hydro-cylinder do not compress tightly, directly leak gas from silica gel pad, and another kind is that pressure is too big, constructs into destruction to pipe fitting seal knot, influences product quality more.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims to provide a simple device for detecting the air tightness of a large-caliber steel-plastic conversion pipe fitting.
In order to achieve the purpose, the following technical scheme is provided:
the utility model provides a simple and easy device that conversion pipe fitting gas tightness detected is moulded to heavy-calibre steel, including vertical press, pressure-resistant spring, ventilation support plate and aerating device, pressure-resistant spring is fixed in on the unable adjustment base of the inside lower extreme of vertical press, the top of pressure-resistant spring is arranged in to the backup pad level of ventilating, the pipe fitting that awaits measuring is arranged in the upper plate of vertical press and is ventilated between the backup pad, it has the gas pocket to set up in the backup pad of ventilating, the gas pocket is located the pipe fitting lower extreme open-ended below that awaits measuring, a pressure is applyed through the pipe fitting that awaits measuring, make pressure-resistant spring take place slight deformation, let in gas, detect the pipe fitting that awaits measuring.
Furthermore, sealing gaskets are respectively arranged between the pipe fitting to be tested and the upper plate of the vertical press and between the pipe fitting to be tested and the ventilation supporting plate, and an opening is formed in the sealing gasket between the pipe fitting to be tested and the ventilation supporting plate and corresponds to the air hole in the ventilation supporting plate, so that the sealing performance of the pipe fitting to be tested and other components is improved.
Furthermore, the inflation device comprises an air nozzle and an inflation tube, and the inflation tube is hermetically connected with the air hole in the ventilation support plate through the air nozzle.
Furthermore, the pressure-resistant springs are symmetrically distributed by taking the air holes as centers, and play a good role in stably supporting the ventilating supporting plate.
Furthermore, a positioning bolt penetrates through the ventilation supporting plate to be connected with the fixed base, the lower end of the positioning bolt is a threaded rod and is in threaded connection with the fixed base, and a smooth rod is arranged between the head of the positioning bolt and the threaded rod.
Furthermore, grooves are formed in the symmetrical positions of the ventilating support plate and the fixed base, and the pressure-resistant spring is placed in the grooves.
The utility model has the beneficial effects that: the requirement on the caliber of the pipe to be detected is low, the pipe specifications capable of being detected are more, and the application range is wider; the pressure of the upper end surface and the lower end surface of the pipe fitting is controlled by the pressure-resistant spring, so that the problem that the pipe fitting is crushed or air leakage from the upper end surface and the lower end surface occurs is prevented; the equipment tool is low in modification cost, and the cost of adopting special equipment is greatly reduced; simple operation and high detection efficiency.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a perspective view of the present invention.
In the figure: 1-a vertical press; 2-a sealing gasket; 3-a pipe fitting to be tested; 4-positioning bolts; 5-pressure resistant spring; 6-a ventilation support plate; 7-an inflation tube; 8-air tap; 9-fixing the base.
Detailed Description
The utility model will be further described with reference to the drawings attached to the description, but the scope of the utility model is not limited thereto.
As shown in fig. 1 and 2, a simple device for detecting the air tightness of a large-diameter steel-plastic conversion pipe fitting comprises a vertical press 1, a sealing gasket 2, a positioning bolt 4, pressure-resistant springs 5, an air-permeable supporting plate 6, an air inflation tube 7, an air faucet 8 and a fixed base 9, wherein six pressure-resistant springs 5 are arranged in grooves of the fixed base 9 so as to be fixed at two sides of the fixed base 9 at the lower end in the vertical press 1, the air-permeable supporting plate 6 is fixedly connected above the pressure-resistant springs 5, the upper end of each pressure-resistant spring 5 is arranged in the groove of the air-permeable supporting plate 6, an air hole is formed in the middle of the air-permeable supporting plate 6, the air inflation tube 7 is hermetically connected with the air hole through the air faucet 8, the air inflation tube 7 is inserted into one end of the air faucet 8, and the other end of the air faucet 8 is inserted into the air hole; the pipe fitting 3 that awaits measuring is located the upper plate of vertical press 1 and ventilates between backup pad 6, the lower extreme of the pipe fitting 3 that awaits measuring is located the gas pocket top, it all is equipped with sealed pad 2 between the upper plate of pipe fitting 3 and vertical press 1 and awaits measuring between pipe fitting 3 and the backup pad 6 of ventilating to await measuring, the trompil has been seted up on sealed pad 2 between the pipe fitting 3 that awaits measuring and the backup pad 6 of ventilating, this trompil corresponds each other with the gas pocket on the backup pad 6 of ventilating, four positioning bolt 4 pass and ventilate backup pad 6 and be connected with unable adjustment base 9, positioning bolt 4's lower extreme is the threaded rod, with unable adjustment base 9 thread fixed connection, be smooth rod between positioning bolt 4's head and the threaded rod, positioning bolt 4 is located the limit portion of backup pad 6 of ventilating, each positioning bolt 4 is located between two withstand voltage springs 5, withstand voltage spring 5 warp, the backup pad 6 of ventilating moves down along the smooth rod.
The working mode is as follows: after the pipe fitting 3 that awaits measuring accomplishes the installation, compress tightly the upper plate from the top with vertical press 1, until withstand voltage spring 5 slight deformation stops, adjustment atmospheric pressure ventilates for the pipe fitting 3 that awaits measuring through gas tube 7, if there is gas to spill from sealed pad 2, makes vertical press 1 continue downwards, slowly increases withstand voltage spring 5 pressure, until sealed pad 2 department no gas spills, spouts the pipe fitting junction with detection liquid such as soapy water, observes whether there is gas to reveal.
Claims (6)
1. The utility model provides a simple and easy device that conversion pipe fitting gas tightness detected is moulded to heavy-calibre steel, a serial communication port, including vertical press (1), withstand voltage spring (5), backup pad (6) and aerating device ventilate, withstand voltage spring (5) are fixed in on unable adjustment base (9) of the inside lower extreme of vertical press (1), the top of withstand voltage spring (5) is arranged in to backup pad (6) level of ventilating, the pipe fitting (3) that await measuring are arranged in the upper plate of vertical press (1) and are ventilated between backup pad (6), the gas pocket has been seted up on backup pad (6) of ventilating, the gas pocket is located the pipe fitting (3) lower extreme open-ended below that awaits measuring, be used for connecting aerating device.
2. The simple device for detecting the air tightness of the large-caliber steel-plastic conversion pipe fitting according to claim 1, wherein sealing gaskets (2) are respectively arranged between the pipe fitting (3) to be detected and the upper plate of the vertical press (1) and between the pipe fitting (3) to be detected and the ventilation supporting plate (6), and openings are formed in the sealing gaskets (2) between the pipe fitting (3) to be detected and the ventilation supporting plate (6) and correspond to the air holes in the ventilation supporting plate (6).
3. The simple device for detecting the airtightness of the large-caliber steel-plastic switching tube according to claim 1, wherein the inflation device comprises an air nozzle (8) and an inflation tube (7), and the inflation tube (7) is hermetically connected with the air hole of the ventilation support plate (6) through the air nozzle (8).
4. The simple device for detecting the airtightness of the large-caliber steel-plastic switching tube according to claim 1, wherein the pressure-resistant springs (5) are symmetrically distributed with the air holes as centers.
5. The simple device for detecting the air tightness of the large-caliber steel-plastic conversion pipe fitting according to claim 1, wherein the positioning bolt (4) penetrates through the ventilating support plate (6) to be connected with the fixed base (9), the lower end of the positioning bolt (4) is a threaded rod and is in threaded connection with the fixed base (9), and a smooth rod is arranged between the head of the positioning bolt (4) and the threaded rod.
6. The simple device for detecting the airtightness of the large-caliber steel-plastic switching tube according to claim 4, wherein grooves are formed in symmetrical positions of the ventilating support plate (6) and the fixing base (9), and the pressure-resistant spring (5) is placed in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121494886.1U CN215811449U (en) | 2021-07-02 | 2021-07-02 | Simple device for detecting air tightness of large-caliber steel-plastic conversion pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121494886.1U CN215811449U (en) | 2021-07-02 | 2021-07-02 | Simple device for detecting air tightness of large-caliber steel-plastic conversion pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215811449U true CN215811449U (en) | 2022-02-11 |
Family
ID=80180227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121494886.1U Active CN215811449U (en) | 2021-07-02 | 2021-07-02 | Simple device for detecting air tightness of large-caliber steel-plastic conversion pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215811449U (en) |
-
2021
- 2021-07-02 CN CN202121494886.1U patent/CN215811449U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204043867U (en) | The end cap of sealing property of ball valves test | |
| CN104165734A (en) | End cover for testing sealing performance of ball valve | |
| CN215811449U (en) | Simple device for detecting air tightness of large-caliber steel-plastic conversion pipe fitting | |
| CN213145680U (en) | Low temperature ball valve is prevented leaking and is used junction sealing device | |
| CN216695460U (en) | Oil mass sensor gas tightness detection device | |
| CN210119324U (en) | Rubber diaphragm leakage detection device | |
| CN208568188U (en) | A kind of air-tightness detection device | |
| CN213336651U (en) | Pipe fitting pressure testing device | |
| CN213274746U (en) | Leakage monitoring device for flange structure at heat exchange station heating power pipeline joint | |
| CN210464819U (en) | Electrolytic cell diaphragm detection device | |
| CN212585933U (en) | Air tightness detection device for axle housing | |
| CN212180195U (en) | Hydraulic pipeline air tightness detection device | |
| CN212228314U (en) | Airtight detection device of people's air defense door | |
| CN211229750U (en) | Device for preventing cooling tower from leaking water | |
| CN209820701U (en) | Valve leakproofness is test fixture in batches | |
| CN208672243U (en) | Water tank type Motorcycle Boxes air-tightness detection device | |
| CN215862285U (en) | Corrugated pipe compensation device with good air tightness | |
| CN210603757U (en) | Airtightness testing device | |
| CN216108778U (en) | Horizontal air pressure tank with bidirectional switching compensation function | |
| CN217155763U (en) | Stainless steel pipe leak detection device | |
| CN217483769U (en) | Airtight detection anchor clamps | |
| CN216955030U (en) | Polar plate gas tightness detection device | |
| CN219348085U (en) | Part gas leakage detection device | |
| CN217927696U (en) | Gas distribution adjusting device | |
| CN218937482U (en) | Double venturi flowmeter with good sealing performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |