CN112378743A - Water pipe outer surface pressure testing device capable of intermittently and diversely applying pressure - Google Patents
Water pipe outer surface pressure testing device capable of intermittently and diversely applying pressure Download PDFInfo
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- CN112378743A CN112378743A CN202011473899.0A CN202011473899A CN112378743A CN 112378743 A CN112378743 A CN 112378743A CN 202011473899 A CN202011473899 A CN 202011473899A CN 112378743 A CN112378743 A CN 112378743A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/30—Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/34—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
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Abstract
The invention relates to a water pipe outer surface pressure testing device, in particular to an intermittent multi-directional pressure applying water pipe outer surface pressure testing device, which comprises a water guide frame, a supporting frame, a water inlet pipe, a water outlet pipe, pressure applying mechanisms on the left side and the right side of the water pipe and the like; the two sides of the water guide frame are symmetrically provided with support frames, the water inlet pipe is arranged at one end of the water guide frame, the two sides of the other side of the water guide frame are symmetrically provided with drain pipes, and the support frames are provided with pressure mechanisms at the left side and the right side of the water pipes. Through mutually supporting of water pipe left and right sides biasing mechanism and water pipe upper and lower both sides biasing mechanism, can intermittent type nature carry out pressure test simultaneously to four sides of water pipe, realized can intermittent type nature carry out the pressure test function of exerting pressure to the water pipe surface is diversified.
Description
Technical Field
The invention relates to a device for testing the pressure of the outer surface of a water pipe, in particular to a device for testing the pressure of the outer surface of the water pipe by intermittent multi-directional pressure application.
Background
The water pipe is a water supply pipeline and is widely used in various fields, the traditional pipeline for supplying water is mainly a cast iron pipe, the cast iron pipe is easy to generate rust scale, breeding bacteria and seriously harming the health of human bodies, the aluminum-plastic composite pipe, a novel plastic pipe and the like are used at present, and the modern decoration water pipe is mostly constructed in a wall-buried manner, so that the pressure resistance of the pipeline is very high.
The pressure test is one of the common methods for judging whether the connection of the water pipe is reliable, but the existing pressure test method can only carry out simple detection generally, is difficult to carry out comprehensive detection on the water pipe, consumes manpower very if comprehensive detection is carried out, consumes time very for manual test and has low efficiency.
Disclosure of Invention
The invention aims to provide a device for testing the surface pressure of the outer surface of a water pipe, which can intermittently and multidirectional test the pressure of a certain point on the water pipe from multiple sides and on four sides of the water pipe, so as to solve the problems that the water pipe is difficult to be comprehensively tested and the manual test efficiency is low in the background technology.
The technical implementation scheme of the invention is as follows: the utility model provides a water pipe surface pressure test device of diversified pressure of intermittent type nature, including the water guide frame, the support frame, the inlet tube, the drain pipe, water pipe left and right sides pressure applying mechanism, water pipe upper and lower both sides pressure applying mechanism, the water pipe is diversified strikes accredited testing organization and actuating mechanism, water guide frame bilateral symmetry is equipped with the support frame, water guide frame one end is located to the inlet tube, water guide frame opposite side both sides symmetry is equipped with the drain pipe, be equipped with water pipe left and right sides pressure applying mechanism on the support frame, water pipe upper and lower both sides pressure applying mechanism locates on the water guide frame, the water pipe is diversified strikes accredited testing organization and locates on the support frame.
Optionally, the water pipe left and right sides mechanism of exerting pressure is including the swing grooved bar, the activity push rod, first elastic pressure plate, first compression spring, universal club, the movable rod, the inclined plane slurcam, push disk and second compression spring, the swing grooved bar is respectively swing symmetry and locates the support frame both sides, two support frames are located to the activity push rod respectively slidingtype symmetry, first elastic pressure plate rigid coupling respectively in activity push rod one end, all be equipped with first compression spring between activity push rod and the support frame, the universal club slidingtype is located two support frame other ends, swing grooved bar and universal club slidingtype cooperation, water guide frame movable connection has the movable rod, movable rod one end rigid coupling has the inclined plane slurcam, inclined plane slurcam and universal club one end contact, the movable rod other end rigid coupling has push disk, be connected with second compression spring between push disk and the water guide frame is.
Optionally, both sides mechanism of exerting pressure about the water pipe is including the leading truck, the guide bar, second elastic pressure plate, third compression spring and wedge grillage, the leading truck rigid coupling respectively in water guide frame top and bottom, sliding connection has the guide bar on the leading truck respectively, guide bar one end all is equipped with second elastic pressure plate, all be connected with third compression spring between leading truck and the second elastic pressure plate, one of them first elastic pressure plate both sides are located to the wedge grillage symmetry, the wedge grillage respectively with two guide bar other end contacts.
Optionally, the diversified accredited testing organization that strikes of water pipe is including the supporting disk, strikes the lance, fourth compression spring, rotatory pipe and rotatory cam ring, and support frame one end is equipped with the supporting disk, and the sliding type that distributes on the supporting disk is equipped with strikes the lance, and the supporting disk all is connected with fourth compression spring between with striking the lance, and supporting disk one side rotary type is connected with rotatory pipe, and the rigid coupling has rotatory cam ring on the rotatory pipe.
Optionally, actuating mechanism is including the backup pad, the rotation axis, drive gear, the ring gear, rack and freewheel clutch, the backup pad is located on the supporting disk, the rotation type is connected with the rotation axis in the backup pad, rotation axis one end rigid coupling has drive gear, the ring gear rigid coupling is on the rotating tube, ring gear and drive gear meshing, the freewheel clutch has been cup jointed to the rotation axis other end, the freewheel clutch outer loop has cup jointed drive gear, wedge grillage one side is located to the rack, rack and drive gear meshing.
Optionally, the water inlet pipe further comprises a sealing rubber ring, and the sealing rubber ring is fixedly connected to one side of the water inlet pipe.
The invention has the beneficial effects that:
through mutually supporting of water pipe left and right sides biasing mechanism and water pipe upper and lower both sides biasing mechanism, can intermittent type nature carry out pressure test simultaneously to four sides of water pipe, realized can intermittent type nature carry out the pressure test function of exerting pressure to the water pipe surface is diversified.
Through the mutual cooperation of the multidirectional knocking test mechanism and the driving mechanism of the water pipe, a certain point on the water pipe can be tested from multiple sides of the water pipe, the water pipe is further comprehensively detected, and the trouble that a detector needs to perform a key test on the certain point again is eliminated.
Through the sealing rubber ring, the high-pressure water flow pumped in can be prevented from leaking from the connecting port, so that the detection result is influenced, the detection result is more real and reliable, and convenience is provided for the outer surface pressure test of the water pipe.
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 third perspective view of the present invention.
Fig. 4 is a schematic perspective view of the pressing mechanism on the upper and lower sides of the water pipe according to the present invention.
Fig. 5 is a partially disassembled perspective structure of the present invention.
FIG. 6 is a schematic view of the three-dimensional structure of the multi-directional water pipe knocking test mechanism and the driving mechanism of the present invention.
FIG. 7 is a schematic view of a partial three-dimensional structure of the multi-directional water pipe knocking test mechanism of the present invention.
Number designation in the figures: 1. a water guide frame, 2, a support frame, 3, a water inlet pipe, 4, a water outlet pipe, 5, pressure mechanisms on the left side and the right side of the water pipe, 501, a swinging groove rod, 502, a movable push rod, 503, a first elastic pressure plate, 504, a first compression spring, 505, a universal ball rod, 506, a movable rod, 507, an inclined plane pushing plate, 508, a pushing disc, 509, a second compression spring, 6, pressure mechanisms on the upper side and the lower side of the water pipe, 601, a guide frame, 602, a guide rod and 603, the device comprises a second elastic pressure plate, 604, a third compression spring, 605, a wedge-shaped plate frame, 7, a water pipe multi-directional knocking test mechanism, 701, a supporting plate, 702, a knocking impact rod, 703, a fourth compression spring, 704, a rotating pipe, 705, a rotating cam ring, 8, a driving mechanism, 801, a supporting plate, 802, a rotating shaft, 803, a driving gear, 804, a gear ring, 805, a rack, 806, an overrunning clutch, 9 and a sealing rubber ring.
Detailed Description
In order to make the technical solution and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A device for testing the pressure on the outer surface of a water pipe with intermittent multi-directional pressure application is disclosed, as shown in figures 1-7, and comprises a water guide frame 1, a support frame 2, a water inlet pipe 3, a water outlet pipe 4, pressure applying mechanisms 5 at the left and right sides of the water pipe, pressure applying mechanisms 6 at the upper and lower sides of the water pipe, a multi-directional water pipe knocking testing mechanism 7 and a driving mechanism 8, wherein the support frame 2 is symmetrically arranged at the two sides of the water guide frame 1, the water inlet pipe 3 is arranged at one end of the water guide frame 1, the water outlet pipe 4 is symmetrically arranged at the two sides of one side of the water guide frame 1 far away from the water inlet pipe 3, the pressure applying mechanisms 5 at the left and right sides of the water pipe are arranged on the support frame 2, the pressure applying mechanisms 6 at the upper and lower sides of the water pipe are used for testing, diversified accredited testing organization 7 that strikes of water pipe is used for testing from a plurality of aspects of water pipe a certain point on the water pipe, and actuating mechanism 8 is located the water pipe and is diversely strikeed on accredited testing organization 7, and actuating mechanism 8 is used for driving the water pipe and diversely strikes accredited testing organization 7 and test the water pipe.
The pressure applying mechanism 5 on the left and right sides of the water pipe comprises a swing groove rod 501, a movable push rod 502, a first elastic pressure plate 503, a first compression spring 504, a universal ball rod 505, a movable rod 506, an inclined plane push plate 507, a push disk 508 and a second compression spring 509, wherein the swing groove rod 501 is respectively and symmetrically arranged on two sides of a support frame 2 in a swing way, the movable push rod 502 is respectively and symmetrically arranged on two support frames 2 in a sliding way, the first elastic pressure plate 503 is respectively and fixedly connected with one end of the movable push rod 502 far away from the swing groove rod 501, the first elastic pressure plate 503 is used for carrying out pressure test on the left and right sides of the water pipe, the first compression spring 504 is respectively arranged between the movable push rod 502 and the support frame 2, the first compression spring 504 is used for driving the swing groove rod 501 and the movable push rod 502 to move and reset, the universal ball rod 505 is slidably arranged at one end of, swing grooved bar 501 and universal club 505 sliding type cooperation, water guide frame 1 inside movable connection has movable rod 506, movable rod 506 is used for driving inclined plane catch plate 507 to remove, movable rod 506 one end rigid coupling has inclined plane catch plate 507, inclined plane catch plate 507 is used for promoting universal club 505 to slide, inclined plane catch plate 507 and the contact of the universal club 505 one end of keeping away from swing grooved bar 501, the movable rod 506 one end rigid coupling of keeping away from catch plate 507 has push disk 508, push disk 508 is used for driving movable rod 506 to remove, be connected with second compression spring 509 between push disk 508 and the water guide frame 1 inside, second compression spring 509 is used for driving movable rod 506, inclined plane catch plate 507 and push disk 508 reset.
The pressure applying mechanism 6 for the upper side and the lower side of the water pipe comprises a guide frame 601, a guide rod 602, a second elastic pressure plate 603, a third compression spring 604 and a wedge-shaped plate frame 605, wherein the guide frame 601 is respectively and fixedly connected to the top and the bottom of the water guide frame 1, the guide frame 601 is used for supporting the guide rod 602 and devices thereon, the guide rod 602 is respectively and slidably connected to the guide frame 601, the guide rod 602 is used for driving the second elastic pressure plate 603 to move, the second elastic pressure plate 603 is arranged at one end of the guide rod 602, the second elastic pressure plate 603 is used for performing pressure tests on the upper side and the lower side of the water pipe, the third compression spring 604 is connected between the guide frame 601 and the second elastic pressure plate 603, the third compression spring 604 is used for driving the guide rod 602 and the second elastic pressure plate 603 to reset, the wedge-shaped plate frame 605 is symmetrically arranged on two sides of one of, the wedge plate frames 605 are respectively in contact with the other ends of the two guide bars 602.
Diversified accreting accredited testing organization 7 of water pipe is including supporting disk 701, strike lance 702, fourth compression spring 703, swivel tube 704 and rotatory cam ring 705, the support frame 2 one end of keeping away from universal club 505 is equipped with supporting disk 701, the sliding type that distributes on the supporting disk 701 is equipped with strikes lance 702, strike lance 702 and be used for strikeing the water pipe and test, all be connected with fourth compression spring 703 between supporting disk 701 and the striking lance 702, supporting disk 701 one side rotary type is connected with swivel tube 704, swivel tube 704 is used for driving rotatory cam ring 705 and rotates, the rigid coupling has rotatory cam ring 705 on the swivel tube 704, through striking lance 702, the mutual cooperation of fourth compression spring 703 and rotatory cam ring 705 can carry out diversified striking to the water pipe, carry out further detection.
The driving mechanism 8 comprises a supporting plate 801, a rotating shaft 802, a driving gear 803, a gear ring 804, a rack 805 and an overrunning clutch 806, the supporting plate 801 is arranged on a supporting plate 701, the supporting plate 801 is used for supporting the rotating shaft 802 and devices thereon, the rotating shaft 802 is rotatably connected to the supporting plate 801, one end of the rotating shaft 802 close to the gear ring 804 is fixedly connected with the driving gear 803, the gear ring 804 is fixedly connected to the rotating pipe 704, the gear ring 804 is used for driving the rotating pipe 704 and devices thereon to rotate, the gear ring 804 is meshed with the driving gear 803, the overrunning clutch 806 is sleeved at one end of the rotating shaft 802 close to the wedge-shaped plate frame 605 and used for transmitting clockwise force, the driving gear 803 is sleeved at the outer ring of the overrunning clutch 806, the rack 805 is arranged at one side of the wedge-.
The device is randomly installed on a pipeline in a closed pipeline, a water inlet pipe 3 and a water outlet pipe 4 are connected with the pipeline of the closed pipeline through flanges, a booster pump is further arranged on the closed pipeline, high-pressure water flows with different strengths are intermittently pumped into the pipe by the booster pump, the pushing force of the high-pressure water flows with different strengths on a pushing plate 508 is different, and the pressure resistance of the water outlet pipe can be tested, when the pushing plate 508 and equipment on the pushing plate are pushed by the water flows to move, a second compression spring 509 is compressed along with the high-pressure water flows, a universal ball on a universal ball rod 505 slides along an inclined pushing plate 507, so that the swinging groove rods 501 are driven to swing by taking the middle as an original point, one ends of the swinging groove rods 501 close to the universal ball rod 505 swing towards directions far away from each other, one ends of the swinging groove rods 501 far away from the universal ball rod 505 swing towards directions close to each other, a first, when the first elastic pressure plate 503 presses the left and right sides of the water pipe for detection, the first elastic pressure plate 503 moves to drive the wedge plate frames 605 on the two sides to move, the guide rod 602 slides downwards under the extrusion of the wedge plate frames 605, the third compression spring 604 is stretched accordingly, and the second elastic pressure plate 603 presses the upper and lower sides of the water pipe for detection, the wedge plate frames 605 move and drive the racks 805 to move so as to drive the driving gear 803 meshed with the racks and the devices thereon to rotate clockwise, the driving gear 803 rotates clockwise to drive the gear ring 804 and the rotating pipe 704 to rotate counterclockwise, so as to drive the rotating cam ring 705 to rotate counterclockwise, the knocking striker 702 continuously contacts and separates from the bumps on the rotating cam ring 705 along with the rotation of the rotating cam ring 705, because the fourth compression spring is always in a compression state, when the knocking striker 702 continuously contacts and separates from the bumps on the rotating cam ring 705, When in separation, the water pipe can be knocked in multiple directions for further detection, and because the water flow is intermittently pumped, when the water flow is separated from the pushing disc 508, the compressed second compression spring 509 is reset to drive the inclined pushing plate 507 to reset, the compressed first compression spring 504 is reset to drive the swinging grooved bar 501, the first elastic pressure plate 503 and the devices thereon to reset, the wedge-shaped plate frame 605 is moved and reset to drive the rack 805 to move and reset, the rack 805 is moved and reset to drive the driving gear 803 engaged with the rack to rotate anticlockwise, because the overrunning clutch 806 only transmits clockwise force, the rotation shaft 802 and the upper device thereof are not rotated when the driving gear 803 engaged with the rack 805 is rotated counterclockwise, at the same time, the stretched third compression spring 604 is reset to drive the guide rod 602 and the second elastic pressure plate 603 to reset, when all devices are reset, the water flow will once again contact the push plate 508 for the next test.
Example 2
On the basis of embodiment 1, as shown in fig. 5, the device further includes a sealing rubber ring 9, the sealing rubber ring 9 is fixedly connected to the side of the water inlet pipe 3 away from the water outlet pipe 4, and the sealing rubber ring 9 is used for sealing to prevent the pumped high-pressure water flow from leaking out of the connection port, thereby affecting the detection result.
After a closed loop is formed, the sealing rubber ring 9 is used for sealing, and high-pressure water flow pumped in is prevented from leaking from the connecting port, so that the detection result is influenced, and the detection result is more real and reliable.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The utility model provides a water pipe surface pressure testing arrangement that diversified pressure of intermittent type nature was impressed, characterized by: including water guide frame (1), support frame (2), inlet tube (3), drain pipe (4), water pipe left and right sides application of pressure mechanism (5), both sides application of pressure mechanism (6) about the water pipe, the diversified accredited testing organization (7) and actuating mechanism (8) of strikeing of water pipe, water guide frame (1) bilateral symmetry is equipped with support frame (2), water guide frame (1) one end is located in inlet tube (3), water guide frame (1) opposite side both sides symmetry is equipped with drain pipe (4), be equipped with water pipe left and right sides application of pressure mechanism (5) on support frame (2), water pipe upper and lower both sides application of pressure mechanism (6) is located on water guide frame (1), the support frame (2) is located in water pipe diversified accredited testing organization (7) of strikeing, actuating mechanism (8) are located on the diversified accredited.
2. The apparatus for testing the external surface pressure of the water pipe with intermittent multi-directional pressure according to claim 1, wherein: the pressure applying mechanisms (5) on the left side and the right side of the water pipe comprise swing groove rods (501), movable push rods (502), first elastic pressure plates (503), first compression springs (504), universal ball rods (505), movable rods (506), inclined plane pushing plates (507), pushing discs (508) and second compression springs (509), the swing groove rods (501) are respectively and symmetrically arranged on two sides of the supporting frame (2) in a swing mode, the movable push rods (502) are respectively and symmetrically arranged on two supporting frames (2) in a sliding mode, the first elastic pressure plates (503) are respectively and fixedly connected to one end of each movable push rod (502), the first compression springs (504) are respectively arranged between the movable push rods (502) and the supporting frames (2), the universal ball rods (505) are arranged on the other ends of the supporting frames (2) in a sliding mode, the swing groove rods (501) are matched with the universal ball rods (505), the movable rods (506) are movably connected, one end of the movable rod (506) is fixedly connected with an inclined plane pushing plate (507), the inclined plane pushing plate (507) is contacted with one end of the universal ball rod (505), the other end of the movable rod (506) is fixedly connected with a pushing disk (508), and a second compression spring (509) is connected between the pushing disk (508) and the inside of the water guide frame (1).
3. The apparatus for testing the external surface pressure of the water pipe with intermittent multi-directional pressure application as claimed in claim 2, wherein: both sides pressure applying mechanism (6) about the water pipe are including leading truck (601), guide bar (602), second elastic pressure plate (603), third compression spring (604) and wedge grillage (605), leading truck (601) rigid coupling respectively in water guide frame (1) top and bottom, on leading truck (601) respectively sliding connection have guide bar (602), guide bar (602) one end all is equipped with second elastic pressure plate (603), all be connected with third compression spring (604) between leading truck (601) and second elastic pressure plate (603), one of them first elastic pressure plate (503) both sides are located to wedge grillage (605) symmetry, wedge grillage (605) respectively with two guide bar (602) other end contact.
4. The apparatus for testing the external surface pressure of the water pipe with intermittent multi-directional pressure application as claimed in claim 3, wherein: diversified accredited testing organization (7) of knocking of water pipe is including supporting disk (701), hit and hit pole (702), fourth compression spring (703), rotatory pipe (704) and rotatory cam ring (705), support frame (2) one end is equipped with supporting disk (701), supporting disk (701) are gone up the distribution sliding type and are equipped with and hit the pole (702), supporting disk (701) and hit and all be connected with fourth compression spring (703) between the pole (702), supporting disk (701) one side rotary type is connected with rotatory pipe (704), the rigid coupling has rotatory cam ring (705) on rotatory pipe (704).
5. The apparatus for testing the external surface pressure of the water pipe with intermittent multi-directional pressure application as claimed in claim 4, wherein: actuating mechanism (8) is including backup pad (801), rotation axis (802), drive gear (803), ring gear (804), rack (805) and freewheel clutch (806), backup pad (801) are located on backup pad (701), it is connected with rotation axis (802) to rotate on backup pad (801), rotation axis (802) one end rigid coupling has drive gear (803), ring gear (804) rigid coupling is on rotatory pipe (704), ring gear (804) and drive gear (803) meshing, freewheel clutch (806) have been cup jointed to rotation axis (802) other end, drive gear (803) have been cup jointed to freewheel clutch (806) outer loop, rack (805) are located wedge grillage (605) one side, rack (805) and drive gear (803) meshing.
6. The apparatus for testing the external surface pressure of the water pipe with intermittent multi-directional pressure application as claimed in claim 5, wherein: the water inlet pipe is characterized by further comprising a sealing rubber ring (9), wherein the sealing rubber ring (9) is fixedly connected to one side of the water inlet pipe (3).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473899.0A CN112378743A (en) | 2020-12-15 | 2020-12-15 | Water pipe outer surface pressure testing device capable of intermittently and diversely applying pressure |
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| CN202011473899.0A CN112378743A (en) | 2020-12-15 | 2020-12-15 | Water pipe outer surface pressure testing device capable of intermittently and diversely applying pressure |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115096716A (en) * | 2022-07-04 | 2022-09-23 | 西南石油大学 | Ground observation experiment device for compressive strength of underground rock formation of oil and gas well |
| CN115165600A (en) * | 2022-09-08 | 2022-10-11 | 国家不锈钢制品质量监督检验中心（兴化） | Nonrust steel pipe resistance to compression detection device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115096716A (en) * | 2022-07-04 | 2022-09-23 | 西南石油大学 | Ground observation experiment device for compressive strength of underground rock formation of oil and gas well |
| CN115165600A (en) * | 2022-09-08 | 2022-10-11 | 国家不锈钢制品质量监督检验中心（兴化） | Nonrust steel pipe resistance to compression detection device |
| CN115165600B (en) * | 2022-09-08 | 2022-11-29 | 国家不锈钢制品质量监督检验中心（兴化） | Nonrust steel pipe resistance to compression detection device |
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