CN214427123U - Thin-wall round pipe hydraulic test device - Google Patents
Thin-wall round pipe hydraulic test device Download PDFInfo
- Publication number
- CN214427123U CN214427123U CN202120127861.1U CN202120127861U CN214427123U CN 214427123 U CN214427123 U CN 214427123U CN 202120127861 U CN202120127861 U CN 202120127861U CN 214427123 U CN214427123 U CN 214427123U
- Authority
- CN
- China
- Prior art keywords
- gland
- pipe fitting
- base
- mounting hole
- thin
- 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 thin wall pipe spare hydrostatic test device, including mutually supporting base and gland, the pipe fitting is installed between base and gland, the base includes the dabber, the dabber lower part is provided with "L" type passageway of intaking, and upper portion is provided with "L" type passageway of going out water, be provided with material returned nut and lower seal circle on the base, material returned nut is the echelonment, install the lower handle on the material returned nut, the gland includes first mounting hole and the second mounting hole that the ladder set up, gland upper portion is provided with the exhaust screw, the gland both sides are provided with the handle, the pipe fitting supports between second mounting hole and material returned nut, dabber upper portion spiro union is in first mounting hole. The problems of complex structure and inconvenient operation of the thin-wall circular tube hydrostatic test are solved.
Description
Technical Field
The utility model relates to a process units field specifically is a thin wall pipe fitting water pressure test device.
Background
Generally, for a hydraulic test device of a round pipe fitting, one end of a workpiece is provided with an installation base with a water inlet, and the base is fixed on a test bed by bolts; the other end is provided with a gland with an exhaust port. The workpiece is matched with the base and the gland through the sealing piece, and then is tightly pressed through the connection of the gland and a plurality of bolt upright columns uniformly distributed on the flange surface of the base. The connecting structure is complex to operate, all bolts need to be assembled in place before a test, and the uniform stress of a workpiece is difficult to ensure during assembly. After the test, all the bolts and the gland also need to be taken down, violent operation such as beating is needed for workpiece disassembly, the product quality is difficult to ensure, and particularly thin-wall parts are easy to deform due to external factors.
Patent CN201120379841.X discloses a pipe fitting hydrostatic test device, which comprises two pipe fitting end sealing mechanisms with the same structure, wherein the pipe fitting end sealing mechanism comprises a mandrel, a shaft shoulder is arranged in the middle of the mandrel, a water through hole is formed in the mandrel, an inner conical sleeve, an elastic sealing sleeve and a screwed inner nut are sequentially sleeved on the section of the inner side of the shaft shoulder in a sliding manner from near to far away from the shaft shoulder, an outer conical sleeve and a screwed outer nut are sequentially sleeved on the section of the outer side of the shaft shoulder in a sliding manner from near to far away from the shaft shoulder, and an opening type locking mechanism which can be opened by the inner conical sleeve and the outer conical sleeve is annularly wrapped on the inner conical sleeve and the outer conical sleeve; the outer ends of the mandrels of the two pipe fitting end part sealing mechanisms are respectively connected with a water inlet valve and a water discharge valve which are communicated with the corresponding water through holes. Because the split type pipe fitting is adopted, the pipe fitting is only suitable for long pipe fittings and short pipe fittings during use, and the pipe fitting is too long during installation.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the hydraulic test device is provided for the thin-wall round pipe fitting with smooth cylindrical surfaces on the inner and outer surfaces of two ends of a workpiece and incapable of adopting end face sealing, and is particularly suitable for the condition of high test pressure.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thin wall pipe spare hydrostatic test device, is including the base and the gland of mutually supporting, the pipe fitting is installed between base and gland, the base includes the dabber, the dabber lower part is provided with "L" type passageway of intaking, and upper portion is provided with "L" type passageway of going out water, be provided with material returned nut and lower seal circle on the base, material returned nut is the echelonment, install the lower handle on the material returned nut, the gland includes first mounting hole and the second mounting hole that the ladder set up, gland upper portion is provided with exhaust screw, the gland both sides are provided with the handle, the pipe fitting supports between second mounting hole and material returned nut, dabber upper portion spiro union is in first mounting hole.
As a further improvement of the above technical solution:
and a radial exhaust passage and a vertical exhaust passage which are vertically arranged are arranged in the exhaust screw.
The distance between the radial exhaust passage and the thread sealing end is smaller than the length of the vertical exhaust passage.
A plurality of mounting flanges are arranged on the base in a surrounding mode.
The length of the internal thread of the first mounting hole is larger than that of the external thread at the corresponding position of the mandrel. The length of the thread cannot be too short nor too long. If the length is too short, it is almost impossible to insert the seal ring by compressing it with manual force if the seal ring needs to be compressed if the thread is not screwed in. If it is too long, the loading and unloading time is increased.
Simultaneously the utility model also discloses an operation method of thin wall pipe spare hydrostatic test device, including following step:
s1, mounting a base, mounting the base to a test bed through a mounting flange, mounting a lower handle into a material returning nut, and mounting the material returning nut to the base;
s2, mounting the pipe fitting, sleeving the pipe fitting into the mandrel, supporting the lower part of the pipe fitting on the upper part of the material returning nut, and sealing the lower part of the pipe fitting through a lower sealing ring of the base;
s3, mounting a gland, namely, rotating the gland by holding an upper handle by hand to enable a mandrel to be sleeved into a first mounting hole, supporting the upper part of a pipe fitting into a second mounting hole, and sealing the upper part of the pipe fitting through an upper sealing ring;
s4, loosening the exhaust screw, starting the test equipment to enable the medium water to enter the pipe fitting, discharging excessive moisture and air, and screwing the exhaust screw after discharging;
s5, starting test equipment to perform pressure test;
and S6, after the test is finished, taking down the gland, loosening the material returning nut, ejecting the pipe fitting out of the sealing ring, and taking down the pipe fitting.
Compared with the prior art, the beneficial effects of the utility model are that:
the hydraulic test device for the thin-wall round pipe fitting comprises a base and a gland, and a large force is transmitted in a centralized manner by utilizing a thread pair in the whole test loading and unloading process, so that the workpiece is uniformly stressed in installation and is easy to assemble; the material returning nut is used for assisting in discharging, so that the damage to the workpiece in the discharging process is avoided; the device has ingenious conception and novel design. Compact structure, easy and simple to handle, labour saving and time saving. Not only reduces the labor intensity of workers, but also ensures the quality of workpieces, and can be widely popularized and applied to production and tests.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the base structure of the present invention;
fig. 3 is a schematic structural view of the material returning nut of the present invention;
FIG. 4 is a schematic view of the gland structure of the present invention;
fig. 5 is a schematic view of the structure of the exhaust screw of the present invention.
Reference numerals: 1. a base; 2. a lower handle; 3. returning the material nut; 4. a lower seal ring; 5. a gland; 6. An upper sealing ring; 7. an upper handle; 8. a gasket; 9. an exhaust screw; 11. a mandrel; 12. installing a flange; 91. a radial exhaust duct; 92. a vertical exhaust passage; 51. a first mounting hole; 52. a second mounting hole; 100. a pipe fitting; 111. a water inlet channel; 112. a water outlet channel; 511. a convex ring.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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.
As shown in fig. 1, the thin-walled circular pipe hydrostatic test device of this embodiment, including base 1 and gland 5 that mutually support, pipe 100 is installed between base 1 and gland 5, base 1 includes dabber 11, dabber 11 lower part is provided with "L" type water inlet channel 111, upper portion is provided with "L" type water outlet channel 112, be provided with material returned nut 3 and lower sealing washer 4 on the base 1, material returned nut 3 is the echelonment, install lower handle 2 on the material returned nut 3, gland 5 includes first mounting hole 51 and the second mounting hole 52 that the ladder set up, gland 5 upper portion is provided with exhaust screw 9, gland 5 both sides are provided with upper handle 7, pipe 100 supports between second mounting hole 52 and material returned nut 3, dabber 11 upper portion spiro union is in first mounting hole 51.
As shown in fig. 2, the base 1 is a stepped shaft, and a plurality of mounting flanges 12 are arranged around the base 1. 4 unthreaded holes are evenly distributed on the large-end flange face and are connected with a test bed through bolts, and a water inlet sealing gasket is arranged in a lower end counter bore and is connected with a test pipeline system through external threads. The middle part is provided with a slender axial inner hole communicated with a radial inner hole, and water is injected into the workpiece cavity through the 90-degree inner hole during the test. The external thread is turned at the position close to the large-end shaft shoulder and is connected with the internal thread of the material returning nut 3, and the workpiece is ejected out through the action of the transmission force of the thread pair so as to be discharged. A small smooth outer circumferential surface is provided next to the external thread, and a radial seal ring mounting groove is provided in the middle, where the lower seal ring 4 is mounted to seal with the inner surface of the pipe member 100. The small end of the stepped shaft is provided with an external thread and a tool withdrawal groove. The middle section cylinder outer diameter is larger than the external thread diameter to form a shaft shoulder, and the shaft shoulder plays a limiting role when the gland 5 is screwed down. The axial inner hole of the small end is communicated with the radial inner hole, and the excessive water and air in the cavity are discharged outwards through the 90-degree inner hole at the beginning of the test.
As shown in figure 3, the inner hole of the material returning nut 3 consists of a threaded inner hole and a unthreaded hole, the threaded inner hole is matched with the external thread below the base 1, the material returning nut is screwed down to a proper position before a test, and is unscrewed until a workpiece is ejected out after the test. Two threaded holes are radially and symmetrically arranged in the middle, and a small plane is milled outside the vertical threaded hole so as to facilitate the processing of threads and the installation and the attractiveness of the lower handle 2.
As shown in fig. 4, the gland 5 is a shaft sleeve type cap-shaped part, the inner hole is a stepped hole, the end of the large hole is provided with a radial sealing ring mounting groove, and the upper sealing ring 6 is mounted on the radial sealing ring mounting groove and sealed with the outer surface of a workpiece. An annular groove is formed on the groove in a turning mode, a convex ring 511 is formed in the threaded inner hole, and 4 uniformly distributed grooves are radially milled in the convex ring 511 to increase the exhaust of gas in the inner cavity. In addition, when gland 5 down moved, the base shaft shoulder was touched earlier to the bulge loop 511 terminal surface, avoided the gland directly to compress tightly the work piece and arouse deformation, can play limiting displacement to guarantee test data's authenticity. The middle section is provided with a thread and a tool withdrawal groove, the internal thread is matched with the external thread at the small end of the base, and the gland is driven to do vertical linear motion through the thread pair, so that the clamping and the loosening of the workpiece are completed. The length of the screw thread is skillfully designed, and the screw thread cannot be too short or too long. If the length is too short, it is almost impossible to insert the seal ring by compressing it with manual force if the seal ring needs to be compressed if the thread is not screwed in. If it is too long, the loading and unloading time is increased. When in design, the inner and outer threads are screwed into the 2-3 screw threads (even if the gland is connected with the base, too much time is not wasted) to start compressing the sealing ring. The small end counter bore and the threaded hole are used for installing the sealing gasket 8 and the exhaust screw 9.
The vent screw 9 shown in fig. 5 is a specially made screw with a 90 ° small internal hole in the middle for venting air. The distance e between the radial exhaust port and the thread sealing end is smaller than the size between the radial exhaust port and the thread sealing end f, when the radial exhaust port is unscrewed, the screw is still fixed on the gland when the radial exhaust port is exposed out of the sealing gasket, the design is very ingenious, the loss phenomenon of parts is avoided, and the working efficiency is improved.
The embodiment also discloses an operation method of the thin-wall round pipe fitting hydrostatic test device, which comprises the following steps:
s1, mounting the base 1 to a test bed through a mounting flange 12, mounting the lower handle 2 into the material returning nut 3, and mounting the material returning nut 3 on the base 1;
s2, installing the pipe 100, sleeving the pipe 100 into the mandrel 11, supporting the lower part of the pipe 100 on the upper part of the material returning nut 3, and sealing the lower part of the pipe 100 through the lower sealing ring 4 of the base 1;
s3, installing a gland 5, rotating the gland 5 by holding an upper handle 7 by hand, so that the mandrel 11 is sleeved into the first installation hole 51, the upper part of the pipe fitting 100 is supported in the second installation hole 52, and the upper part is sealed by an upper sealing ring 6;
s4, loosening the exhaust screw 9, starting the test equipment to enable the medium water to enter the pipe fitting 100, discharging excessive water and air, and screwing the exhaust screw 9 after discharging;
s5, starting test equipment to perform pressure test;
s6, after the test is finished, the gland 5 is taken down, the material returning nut 3 is unscrewed, the pipe fitting 100 is ejected out of the lower sealing ring 4, and then the pipe fitting 100 can be taken down.
The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a thin wall pipe spare hydrostatic test device, includes base (1) and gland (5) of mutually supporting, its characterized in that: the pipe fitting (100) is arranged between the base (1) and the gland (5), the base (1) comprises a mandrel (11), the lower part of the mandrel (11) is provided with an L-shaped water inlet channel (111), the upper part is provided with an L-shaped water outlet channel (112), a material returning nut (3) and a lower sealing ring (4) are arranged on the base (1), the material returning nut (3) is in a step shape, a lower handle (2) is arranged on the material returning nut (3), the gland (5) comprises a first mounting hole (51) and a second mounting hole (52) which are arranged in a stepped manner, an exhaust screw (9) is arranged at the upper part of the gland (5), upper handles (7) are arranged at the two sides of the gland (5), the pipe fitting (100) is supported between the second mounting hole (52) and the material returning nut (3), and the upper portion of the mandrel (11) is in threaded connection with the first mounting hole (51).
2. The thin-wall round pipe fitting hydraulic test device of claim 1, characterized in that: and a radial exhaust passage (91) and a vertical exhaust passage (92) which are vertically arranged are arranged in the exhaust screw (9).
3. The hydrostatic test device for the thin-walled round pipe fitting of claim 2, characterized in that: the distance between the radial exhaust passage (91) and the thread sealing end is smaller than the length of the vertical exhaust passage (92).
4. The hydrostatic test device for the thin-walled round pipe fitting of claim 3, characterized in that: a plurality of mounting flanges (12) are arranged on the base (1) in a surrounding mode.
5. The hydrostatic test device for the thin-walled round pipe fitting of claim 4, characterized in that: the lower part of the first mounting hole (51) is provided with a convex ring (511), and 4 grooves are uniformly distributed in the convex ring (511).
6. The thin-wall round pipe fitting hydraulic test device of claim 5, wherein: the length of the internal thread of the first mounting hole (51) is larger than that of the external thread at the corresponding position of the mandrel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120127861.1U CN214427123U (en) | 2021-01-18 | 2021-01-18 | Thin-wall round pipe hydraulic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120127861.1U CN214427123U (en) | 2021-01-18 | 2021-01-18 | Thin-wall round pipe hydraulic test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214427123U true CN214427123U (en) | 2021-10-19 |
Family
ID=78057787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120127861.1U Active CN214427123U (en) | 2021-01-18 | 2021-01-18 | Thin-wall round pipe hydraulic test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214427123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117451528A (en) * | 2023-12-25 | 2024-01-26 | 宝鸡市杰特瑞金属材料股份有限公司 | Thin-wall titanium pipe hydrostatic test frock |
-
2021
- 2021-01-18 CN CN202120127861.1U patent/CN214427123U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117451528A (en) * | 2023-12-25 | 2024-01-26 | 宝鸡市杰特瑞金属材料股份有限公司 | Thin-wall titanium pipe hydrostatic test frock |
| CN117451528B (en) * | 2023-12-25 | 2024-03-08 | 宝鸡市杰特瑞金属材料股份有限公司 | Thin-wall titanium pipe hydrostatic test frock |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112763309B (en) | Thin-wall circular pipe hydraulic test device and test method | |
| CN214427123U (en) | Thin-wall round pipe hydraulic test device | |
| CN109596332B (en) | Low-speed machine oil cylinder high-pressure cavity pressure test device | |
| CN108426775B (en) | External tightening type hydraulic test tool for small-specification thin-wall steel pipe | |
| CN112858021B (en) | Pressure test device and method for threaded container at mouth | |
| CN213336683U (en) | Pressure test tool for tube bundle of air cooler | |
| CN214309907U (en) | Mouth portion screw thread container pressure test device | |
| CN212722334U (en) | Quick pressure test device of tube bundle assembly | |
| CN218895900U (en) | External pressure type airtight detection device for airtight assembly | |
| CN116085370B (en) | Bolt fastening device convenient to dismouting | |
| CN105546239A (en) | External connecting type buckle structure | |
| CN110893589A (en) | Sealing clamp for complex-structure casing parts | |
| CN205534699U (en) | Circumscribed buckle structure | |
| CN216350052U (en) | U-shaped barrel pressure test device | |
| CN219583409U (en) | Injection molding nozzle | |
| CN221037969U (en) | Airtight frock | |
| CN218411964U (en) | External pressure kettle locking mechanism for vertical steel pipe extrusion and destruction experiment | |
| CN209878224U (en) | Oxygen lance nozzle pressure test tool | |
| CN221362582U (en) | Casting device of water pump shell | |
| CN213209398U (en) | Pressure testing device for pipeline and equipment | |
| CN216284137U (en) | Heat exchange tube sealing test connector device | |
| CN111469091B (en) | Combined tool for mounting and dismounting large-diameter flange plate | |
| CN217329392U (en) | Gas supply system of gas phase mass spectrometer chamber | |
| CN221171157U (en) | Pluggable seamless steel pipe | |
| CN215768017U (en) | Fixture device for rain spray pressure detection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |