CN216350052U - U-shaped barrel pressure test device - Google Patents
U-shaped barrel pressure test device Download PDFInfo
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- CN216350052U CN216350052U CN202122605506.3U CN202122605506U CN216350052U CN 216350052 U CN216350052 U CN 216350052U CN 202122605506 U CN202122605506 U CN 202122605506U CN 216350052 U CN216350052 U CN 216350052U
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Abstract
The utility model discloses a pressure test device for a U-shaped cylinder, which comprises a loading and unloading rotary tool I, a fixing part II and a control part III, wherein the loading and unloading rotary tool I is connected with the fixing part II through a screw; in the loading and unloading rotary tool I, the end parts of a lower clamping plate, a connecting block, a connecting plate and an upper clamping plate are sequentially hinged and connected, and a product is clamped between the upper clamping plate and the lower clamping plate; in the fixed component II, a base is in threaded connection with a test bed, an exhaust screw penetrates through the side of the base, an exhaust pipe is inserted into a small counter bore in the base, a top end pipe orifice of the exhaust pipe extends into the center of the interior of a product, a connecting compression ring is in threaded connection with the upper portion of the base with an internal threaded hole, and the product is in threaded connection with a gap space between the connecting compression ring and a large shaft on the upper portion of the base; in the control component III, a loose joint nut is in threaded connection with the lower part of the base, and a connecting pipe is communicated with the water inlet and outlet channel hole; one channel of the three-way ball valve is communicated with the test medium, and the other channel of the three-way ball valve is communicated with the outer drainage pipeline. The structure of the utility model is an innovative design of the U-shaped cylinder body in the aspects of air exhaust, water drainage, assembly and disassembly and the like.
Description
Technical Field
The utility model relates to a pressure test device, in particular to a pressure test device for a U-shaped cylinder.
Background
When pressure test is done for the product that the oral area is the external screw thread structure usually, can utilize on the product from taking the screw thread to fix and test the product, can not only detect the wall thickness or the welding seam intensity of product, can detect the intensity of screw thread simultaneously moreover. However, the mode of fixing the product by utilizing the self-threading of the product brings certain difficulty to the disassembly of the product after the test. After the product is exploded, the product can be seriously deformed and torn, so that the test product can not be smoothly disassembled after the test is finished, and even the whole test tool is scrapped. In addition, in the prior art, after a general hydraulic test is finished, the system only releases pressure, namely, a product is taken down, water in the test cavity is released but not discharged, certain resistance exists when the product is taken out, and meanwhile, the working environment is dirty and poor due to random water drainage.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a pressure testing device for a U-shaped cylinder.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a pressure test device for a U-shaped cylinder comprises a loading and unloading rotary tool I, a fixing part II and a control part III;
the loading and unloading rotary tool I comprises an upper clamping plate, a lower clamping plate, a connecting block and a connecting plate; the ends of the lower clamping plate, the connecting block, the connecting plate and the upper clamping plate are sequentially hinged; a product is clamped between the upper clamping plate and the lower clamping plate, and the product is a semi-closed product with an external thread structure at the opening part;
the fixing part II comprises a base, a connecting compression ring, an exhaust screw and an exhaust pipe; the middle part of the base is provided with a water inlet and outlet passage hole in a penetrating way; the base is in threaded connection with the test bed; an internal thread hole is formed in the side of the base and communicated with a small counter bore in the base, and an exhaust screw is connected in the internal thread hole in a threaded manner; an exhaust pipe is inserted into the small counter bore, and a pipe orifice at the top end of the exhaust pipe extends into the center of the inside of the product; the connecting compression ring is provided with a central internal thread hole, and the connecting compression ring is in threaded connection with the upper part of the internal thread hole base; the product is in threaded connection with a gap space between the connecting compression ring and the upper large shaft of the base;
the control component III comprises a loose joint nut, a connecting pipe and a three-way ball valve which are sequentially connected; the loose joint nut is in threaded connection with the lower part of the base; the connecting pipe is communicated with the water inlet and outlet channel hole; one channel of the three-way ball valve is communicated with the test medium, and the other channel of the three-way ball valve is communicated with the outer drainage pipeline.
Preferably, the inner sides of the upper splint and the lower splint are respectively in threaded connection with two cow leather gaskets; and a handle is arranged on the connecting block.
Preferably, the base is a disc-shaped shaft part; the connecting compression ring is a sleeve part.
Preferably, annular groove has been seted up to the upper end staff excircle of base, and the distance between annular groove upper end and the connection clamping ring up end is greater than 2 pitches, and the embedding is equipped with O shape sealing washer in the annular groove, product threaded connection extrudees O shape sealing washer when in the clearance space between the upper portion staff of connecting clamping ring and base.
Preferably, the circular counter bore has been seted up to the side terminal surface of base, circular counter bore constitutes the side shoulder hole with the internal thread hole, the embedding is equipped with sealed the pad in the circular counter bore, and exhaust screw wears to establish sealed pad threaded connection in the internal thread hole.
Preferably, the lower end surface of the base is provided with 4 threaded blind holes which are uniformly distributed in a circumferential manner relative to the center of the base, the base is arranged on a test bed, and bolts are connected with the 4 threaded blind holes of the test bed and the base in an internal thread manner; 8 screw through holes that are central symmetry for the base the central axis are seted up to the up end of base, the radial equipartition of terminal surface of connecting the clamping ring has 8 unthreaded holes that are circumference evenly distributed for connecting the clamping ring center, and the position of 8 screw through holes, 8 unthreaded holes is the one-to-one, is threaded connection has the bolt on screw through hole, the unthreaded hole that is corresponding.
Preferably, the upper end surface of the base is provided with an annular groove, and a gasket is embedded in the annular groove; the lower part of the connecting compression ring is a stepped plane, and the lower protruding surface of the connecting compression ring is clamped in the annular groove and is connected with the lower protruding surface of the compression ring to compress the gasket; the lower end face of the product is also in contact with the gasket.
Preferably, an annular groove is formed in the outer circle of the insertion section of the exhaust pipe, a fixing ring is embedded into the annular groove, and the exhaust pipe is inserted into the small counter bore of the base and extrudes the fixing ring; and fine inner holes distributed at 90 degrees are formed in the exhaust screw.
Preferably, a circular counter bore is formed in the middle of the lower end face of the base, a water inlet sealing pad is embedded into the circular counter bore, and the connecting pipe is in compression joint with the water inlet sealing pad.
Compared with the prior art, the utility model has the beneficial effects that:
(1) aiming at the characteristics of a semi-closed structure of the U-shaped cylinder, the exhaust pipe is introduced into the center of the bottom of the cylinder in the utility model, so that the residual air in the test cavity is exhausted as far as possible, and the safety and the accuracy of the test are improved;
(2) the design of the three-way ball valve not only provides a guarantee for the misoperation of the test system, but also enables water in the test cavity to be drained orderly, so that the working environment is greatly improved;
(3) the utility model design of the loading and unloading rotary tool I solves the problem that the round tubular workpiece is difficult to load and unload;
(4) when the product is initially screwed in, the O-shaped sealing ring is not required to be compressed and can be easily screwed in; when the product is screwed into 2 pitches, the product is in contact with the O-shaped sealing ring and is screwed into the O-shaped sealing ring by virtue of the transmission force of the threads, but the O-shaped sealing ring is extruded and the threads are aligned to be difficult to assemble when the product is initially installed; the design not only avoids the damage to the product thread caused by uneven stress during initial assembly, but also saves time and labor;
(5) the connecting compression ring and the base are designed in a detachable mode, and when a product is seriously deformed and torn after a hydraulic pressure explosion test and cannot be screwed out, the connecting compression ring and a scrapped product can be taken down together, so that the whole device cannot be scrapped, and the production cost is greatly saved;
(6) aiming at the products with semi-closed structures such as U-shaped cylinders or sealing heads, the device is designed in a practical and novel way from the aspects of exhausting, draining, loading and unloading, so that the safety, the accuracy and the economical efficiency of the test are greatly improved, the working environment is improved, and the production cost is saved; the whole device has novel conception, safety, reliability, simple and convenient operation, economy and practicality.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is a top view of the handling screwdriver I of the present invention;
FIG. 3 is a front view of the fixing member II of the present invention;
FIG. 4 is a front view of a control section III of the present invention;
FIG. 5 is a front view of the base of the present invention;
FIG. 6 is a top view of FIG. 5;
FIG. 7 is a front view of the connecting compression ring of the present invention;
FIG. 8 is a top view of FIG. 7;
FIG. 9 is a front view of the vent screw of the present invention.
In the figure: 1. a hinge rivet; 2. an upper splint; 3. a lower splint; 4. a cow leather gasket; 5. a screw; 6. connecting blocks; 7. a connecting plate; 8. a handle; 9. an exhaust screw; 10. an exhaust port gasket; 11. a base; 12. connecting the compression ring; 13. a stationary ring; 14. an exhaust pipe; 15. a water inlet sealing gasket; 16. an O-shaped sealing ring; 17. a gasket; 18. a bolt; 19. a nut; 20. A connecting pipe; 21. three-way ball valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like 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 "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
referring to fig. 1, a composition diagram of a U-shaped cylinder pressure testing device is shown, and the device mainly comprises a loading and unloading rotary tool i, a fixing part ii and a control part iii. The testing device is arranged on the test bed through 4 bolts and is connected with the testing system through a port P of the three-way ball valve.
Referring to fig. 2, a handling screwdriver i is shown. Wherein the lower clamping plate 3, the connecting block 6, the connecting plate 7 and the end part of the upper clamping plate 1 are hinged and connected through a hinge rivet 1 in sequence. Two cow leather gaskets 4 are respectively arranged at the inner sides of the upper splint 2 and the lower splint 3 by 6 screws 5, and the screw heads are pressed into the cow leather gaskets 4. When the self-locking handle is used, the handle rotates anticlockwise firstly to enlarge the aperture between the upper clamping plate and the lower clamping plate, the screwdriver is sleeved into a product, and the handle rotates clockwise to reduce the aperture between the upper clamping plate and the lower clamping plate, so that self-locking is realized. Meanwhile, the cow leather gasket 4 is extruded by the product, the product is tightly held by the friction force between the cow leather gasket and the product and the clamping force of the upper clamping plate and the lower clamping plate, and the product is driven to rotate together by rotating the rotating tool so as to be installed or detached.
Referring to fig. 3, a fixing member ii to which the product is fixed by screw coupling.
Wherein the exhaust port gasket 10 is placed in a counterbore at the side of the base 11 and mounted on the side of the base 11 by the exhaust screw 9. The lower section of the exhaust pipe 14 is inserted into a small counter bore of the base 11, an annular groove for installing the fixing ring 13 is turned on the excircle of the insertion section, the exhaust pipe 14 is fixed in the base 11 by extruding the fixing ring 13, and the top end pipe orifice of the exhaust pipe is centered in the center of the device.
An O-shaped sealing ring 16 is arranged in a circular groove outside the large shaft at the upper section of the base 11, and the O-shaped sealing ring 16 is extruded to seal the base and the product when the product is installed. The size a of the upper end of the annular groove and the size of the upper end face of the connecting pressing ring 12 are larger than 2 screw pitches, and due to the design, when a product is initially screwed in, the product can be easily screwed in without compressing the O-shaped sealing ring 16. When the product is screwed into 2 pitches, the product is in contact with the O-shaped sealing ring, and the product is screwed in by virtue of the transmission force of the threads instead of being difficult to assemble due to the fact that the O-shaped sealing ring is extruded and the threads are required to be aligned at the beginning of assembly. The design avoids damage to product threads caused by uneven stress during initial assembly, and saves time and labor. The gasket 17 is arranged in an annular groove in the middle of the base 11, the connecting pressing ring 12 is fastened on the base through 8 bolts 18, and meanwhile, the outer ring of the gasket 17 is pressed, so that the gasket 17 is prevented from being worn or changed in position along with the workpiece in the process that the workpiece is screwed into the base, and the end face of the product can be protected from being scratched after the product is screwed into place.
Referring to fig. 4, the control component iii is composed of a union nut 19, a connecting pipe 20 and a three-way ball valve 21. Referring to fig. 1, a union nut 19 is coupled to the external thread at the water inlet of the lower end of the base 11 and is sealed by compressing the end surface of the water inlet gasket 15. The three-way ball valve 21 controls the flow direction of a test medium, when the handle is at the position of the port P, the port T is closed, a system test pipeline is communicated with the inner cavity of a product, and the test medium enters the inner cavity of the product to perform a pressure test. When the handle is at the T-port position, the P port is closed, the system test pipeline is closed, the inner cavity of the product is communicated with the outer drainage pipeline, and test media are discharged.
Referring to fig. 5 and 6, the base 11 is shown, fig. 5 is a front sectional view of the base, and fig. 6 is a top view of the base. The base 11 is a disc-shaped shaft part, the lower end small shaft is provided with an external thread connected with a control pipeline, the end face is provided with a circular counter bore, and the water inlet sealing gasket 15 is arranged at the end face. A small round hole is arranged in the middle of the water inlet pipe and the water outlet pipe. Two circles of threaded holes are uniformly distributed on the lower end face of the middle disc, and 8 threaded through holes with large diameters are uniformly distributed for connecting the compression ring 12 for installation. 4 threaded blind holes with small diameters uniformly distributed are used for mounting the device. The upper end face of the disc is machined with an annular groove to which a washer 17 is fitted. An annular groove is turned on the excircle of the upper end large shaft for installing the O-shaped sealing ring 16. The large shaft end edge is chamfered by 20 degrees, which is beneficial to the installation and the leading-in of products. The middle vehicle is provided with a disc-shaped counter bore, which is beneficial to centralized drainage. The end face close side is also provided with a stepped hole connected with the side stepped hole, and the upper section is slightly larger than the counter bore for installing the exhaust pipe. A facet is milled at the side stepped hole which is not only advantageous for the machining of the hole, but also for the installation and compression sealing of the exhaust port gasket 10. The outer end of the side stepped hole is a round counter bore, the exhaust port sealing gasket 10 is installed in the round counter bore, the counter bore is an internal threaded hole inwards, and an exhaust screw penetrates through the exhaust port sealing gasket and is installed in the round counter bore. The middle is a small round hole to reduce the pressure on the exhaust screw during the test.
Referring to fig. 7 and 8, the connecting pressing ring 12 is a sleeve part, the inner hole is an inner threaded hole, and the product is screwed with the inner threaded hole through an external thread. The lower part is a stepped plane, the lower end convex surface compresses the gasket 17, and the transition part of the upper end annular plane and the circumference is provided with a grinding wheel overrun groove, so that the grinding processing is facilitated, the edge interference is prevented, and the grinding wheel overrun groove is perfectly attached to the base. The end face is radially and evenly provided with 8 unthreaded holes, and the connecting compression ring 12 is fastened on the base through the unthreaded holes by bolts 18. The side surface and the base are milled with a small plane at the corresponding position, so that the side surface is flush with the base and is beautiful.
Referring to fig. 9, the exhaust screw 9 has a 90 ° small internal hole in the middle for exhaust. The distance between the radial exhaust port and the sealing end is smaller than the size between the radial exhaust port and the sealing end, 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 loss phenomenon of parts is avoided through the design, and the working efficiency can be improved.
The working principle of the utility model is as follows:
and mounting the fixing component II on a test bed by using 4 bolts. And then the control component III is fastened at the small shaft end of the fixing component II through threaded connection, so that the device is connected with a system pipeline. The loading and unloading rotary tool I is used for tightly holding the workpiece and is screwed into the base 11 in the clockwise direction until the gasket 17 is compressed and deformed under the pressure action of the workpiece, and then the workpiece is installed in place;
before the test starts, the exhaust screw 9 is unscrewed, the radial exhaust port of the exhaust screw is exposed out of the exhaust port sealing gasket 10, the handle of the three-way ball valve 21 is screwed to the position of the port P, the inner cavity of the U-shaped cylinder is communicated with the test pipeline, and the port T is closed. After the device is ready, the test system is started, system test medium water enters the inner cavity of the U-shaped barrel from the small round hole of the base 11 through the port P, and along with the rising of the water level in the inner cavity, redundant moisture and air enter through the inner hole at the top end of the exhaust pipe and are discharged from the exhaust screw through the small round hole at the 90-degree right angle of the base. When all the water is discharged by the exhaust screw, the exhaust screw is screwed down, and the exhaust port sealing gasket 10 is compressed to enable the test chamber to be in a closed state. When the pressure of the system rises to the required test pressure, the pressure maintaining is started, the pressure of the system starts to be relieved after the pressure maintaining is carried out for a set time, after the pressure relief is finished, the handle of the three-way ball valve 21 is screwed to the position of the T port, the P port is closed, the system pipeline is closed, the inner cavity of the U-shaped cylinder is communicated with the drainage pool pipeline, and water in the inner cavity of the U-shaped cylinder is drained. After the test medium is emptied, the workpiece is tightly held by the loading and unloading rotary tool I and reversely unscrewed anticlockwise, and the workpiece is taken down, so that the whole test is completed.
Aiming at semi-closed products such as U-shaped cylinders or sealing heads, the device is innovatively designed from the aspects of air exhaust, water drainage, assembly and disassembly, the safety, the accuracy and the economical efficiency of the test are greatly improved, the working environment is improved, and the production cost is saved. The whole device has novel conception, safety, reliability, simple and convenient operation, economy and practicality.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (9)
1. A pressure test device for a U-shaped cylinder is characterized by comprising a loading and unloading rotary tool I, a fixing part II and a control part III;
the loading and unloading rotary tool I comprises an upper clamping plate, a lower clamping plate, a connecting block and a connecting plate; the ends of the lower clamping plate, the connecting block, the connecting plate and the upper clamping plate are sequentially hinged; a product is clamped between the upper clamping plate and the lower clamping plate, and the product is a semi-closed product with an external thread structure at the opening part;
the fixing part II comprises a base, a connecting compression ring, an exhaust screw and an exhaust pipe; the middle part of the base is provided with a water inlet and outlet passage hole in a penetrating way; the base is in threaded connection with the test bed; an internal thread hole is formed in the side of the base and communicated with a small counter bore in the base, and an exhaust screw is connected in the internal thread hole in a threaded manner; an exhaust pipe is inserted into the small counter bore, and a pipe orifice at the top end of the exhaust pipe extends into the center of the inside of the product; the connecting compression ring is provided with a central internal thread hole, and the connecting compression ring is in threaded connection with the upper part of the internal thread hole base; the product is in threaded connection with a gap space between the connecting compression ring and the upper large shaft of the base;
the control component III comprises a loose joint nut, a connecting pipe and a three-way ball valve which are sequentially connected; the loose joint nut is in threaded connection with the lower part of the base; the connecting pipe is communicated with the water inlet and outlet channel hole; one channel of the three-way ball valve is communicated with the test medium, and the other channel of the three-way ball valve is communicated with the outer drainage pipeline.
2. The U-shaped cylinder pressure test device according to claim 1, wherein two cow leather gaskets are respectively connected with the inner sides of the upper clamping plate and the lower clamping plate in a threaded manner; and a handle is arranged on the connecting block.
3. A U-shaped cylinder pressure test device as claimed in claim 1, wherein the base is a disc-shaped shaft part; the connecting compression ring is a sleeve part.
4. The U-shaped cylinder pressure test device of claim 3, characterized in that an annular groove is formed in the excircle of the upper end large shaft of the base, the distance between the upper end of the annular groove and the upper end face of the connecting compression ring is greater than 2 screw pitches, an O-shaped sealing ring is embedded into the annular groove, and the O-shaped sealing ring is extruded when the product is in threaded connection in a gap space between the connecting compression ring and the upper large shaft of the base.
5. The U-shaped cylinder pressure test device according to claim 3, wherein a circular counter bore is formed in the side end face of the base, the circular counter bore and the internal threaded hole form a side stepped hole, a sealing gasket is embedded in the circular counter bore, and an exhaust screw penetrates through the sealing gasket and is connected in the internal threaded hole in a threaded mode.
6. The U-shaped cylinder pressure test device according to claim 4, wherein 4 threaded blind holes are formed in the lower end face of the base, the threaded blind holes are evenly distributed circumferentially relative to the center of the base, the base is mounted on a test bed, and bolts are connected in the 4 threaded blind holes of the test bed and the base in a threaded manner; 8 screw through holes that are central symmetry for the base the central axis are seted up to the up end of base, the radial equipartition of terminal surface of connecting the clamping ring has 8 unthreaded holes that are circumference evenly distributed for connecting the clamping ring center, and the position of 8 screw through holes, 8 unthreaded holes is the one-to-one, is threaded connection has the bolt on screw through hole, the unthreaded hole that is corresponding.
7. The U-shaped cylinder pressure test device according to claim 5, wherein an annular groove is formed in the upper end surface of the base, and a gasket is embedded in the annular groove; the lower part of the connecting compression ring is a stepped plane, and the lower protruding surface of the connecting compression ring is clamped in the annular groove and is connected with the lower protruding surface of the compression ring to compress the gasket; the lower end face of the product is also in contact with the gasket.
8. The pressure test device for the U-shaped cylinder according to claim 1, wherein an annular groove is formed in the outer circle of the insertion section of the exhaust pipe, a fixing ring is embedded in the annular groove, and the exhaust pipe is inserted into the small counter bore of the base and extrudes the fixing ring; and fine inner holes distributed at 90 degrees are formed in the exhaust screw.
9. The U-shaped cylinder pressure test device of claim 1, wherein a circular counter bore is formed in the middle of the lower end face of the base, a water inlet sealing gasket is embedded in the circular counter bore, and the connecting pipe is in press connection with the water inlet sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605506.3U CN216350052U (en) | 2021-10-28 | 2021-10-28 | U-shaped barrel pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122605506.3U CN216350052U (en) | 2021-10-28 | 2021-10-28 | U-shaped barrel pressure test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216350052U true CN216350052U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122605506.3U Active CN216350052U (en) | 2021-10-28 | 2021-10-28 | U-shaped barrel pressure test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216350052U (en) |
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2021
- 2021-10-28 CN CN202122605506.3U patent/CN216350052U/en active Active
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