CN113484012A - Detection apparatus for pilot operated safety valve - Google Patents
Detection apparatus for pilot operated safety valve Download PDFInfo
- Publication number
- CN113484012A CN113484012A CN202011346084.6A CN202011346084A CN113484012A CN 113484012 A CN113484012 A CN 113484012A CN 202011346084 A CN202011346084 A CN 202011346084A CN 113484012 A CN113484012 A CN 113484012A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- block
- safety valve
- sliding
- pilot operated
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 35
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 25
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims abstract description 13
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/003—Machine valves
-
- B08B1/12—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
Abstract
The invention relates to the technical field of detection devices, in particular to a detection device of a pilot operated safety valve, which comprises a base, a display table, a detection table and an operation table, wherein the bottoms of the outer surfaces of the display table, the detection table and the operation table are fixedly connected with the top of the outer surface of the base, the display table is positioned between the detection table and the operation table, the top of the outer surface of the detection table is provided with a clamping device, one side of the outer surface of the display table, which is close to the operation table, is provided with a cleaning device, one side of the outer surface of the base is provided with an anti-tilting device and an extrusion device, the clamping device comprises an installation plate and a first sliding groove, and the outer surface of the installation plate is provided with a one-way threaded rod in a penetrating mode. The safety valve is more stably fixed through the clamping device, workers can clean the display table conveniently through the cleaning device, the garbage can cannot be stumbled through the anti-dumping device, and garbage in the garbage can be compressed through the extruding device.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a detection device of a pilot operated safety valve.
Background
The pilot operated safety valve is a non-direct load type safety valve. Consists of a main valve and a pilot valve, the main valve is driven by medium discharged from the pilot valve, and because the pressure in the system is in a pulse form, also known as "pulse relief valves", alone, the pilot valve itself is also a direct load relief valve, when the turn force of the medium reaches the opening pressure of the pilot valve, the pilot valve is opened in advance, the discharged medium enters the main valve from the bypass pipe, the pilot operated safety valve is suitable for occasions with high pressure and large caliber, the pilot operated safety valve has good sealing performance, at the same time, its action is less affected by the back pressure, and the disadvantage of this safety valve is that its reliability is related to the main valve and pilot valve, and its action is not as quick and reliable as that of the direct action safety valve, the structure is complex, the safety valve is specially tested before being installed, the tightness of the safety valve is checked, and a detection device of the pilot safety valve is an important detection device.
The detection device of guide's formula relief valve need fix the relief valve when detecting the relief valve, and current detection device often only has one fixed procedure, and is unstable to the fixed of relief valve, and the relief valve shifts easily and then influences the testing result, and detection device generally all has intelligent display screen, and the long-time use of display screen can make on the display screen save the dust, influences the use, and the time has been of a specified duration and can shorten the life of machine.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a detection device of a pilot operated safety valve.
In order to achieve the purpose, the invention adopts the following technical scheme:
the detection device for the pilot operated safety valve comprises a base, a display platform, a detection platform and an operation platform, wherein the bottoms of the outer surfaces of the display platform, the detection platform and the operation platform are fixedly connected with the top of the outer surface of the base, the display platform is positioned between the detection platform and the operation platform, a clamping device is arranged at the top of the outer surface of the detection platform, a cleaning device is arranged on one side, close to the operation platform, of the outer surface of the display platform, and an anti-toppling device and an extrusion device are arranged on one side of the outer surface of the base.
Clamping device includes mounting panel and first spout, the surface of mounting panel runs through and is provided with one-way threaded rod, one end of the surface of one-way threaded rod is rotated and is connected with first grip block, the surface of display panel has seted up the second spout near the one side of examining test table, the inner wall sliding connection of second spout has first slider, the inner wall one side of first spout is rotated and is connected with two-way threaded rod, the surface symmetry threaded connection of two-way threaded rod has the second slider, the surface top fixedly connected with L shape pole of second slider, the surface one end fixedly connected with second grip block of L shape pole.
Preferably, cleaning device includes the sliding tray, the sliding tray is seted up in the surface of display station and is close to one side of operation panel, fixedly connected with fixed rod between the inner wall both sides of sliding tray, the surface sliding connection of fixed rod has the sliding block, surface one side fixedly connected with groove block of sliding block, fixedly connected with round bar between the inner wall both sides of groove block, the surface of round bar rotates and is connected with the location disc, the surface fixed connection of location disc has the push-and-pull rod, surface one side of groove block runs through and is provided with the screens pole, the surface bottom fixedly connected with brush of sliding block.
Preferably, the anti-toppling device is including the installation piece, surface one side of installation piece and surface one side fixed connection of base, two rectangular blocks of the surface top symmetry fixedly connected with of installation piece, two one side fixedly connected with member that the surface of rectangular block is relative, the surface of member rotates and is connected with the fixture block, the surface cover of member is equipped with the torsional spring, one side fixedly connected with latch closure of base is kept away from to the surface of installation piece, the inner wall sliding connection of latch closure has the garbage bin.
Preferably, the extrusion device includes the stock, the surface one end and the base fixed connection of stock, the one end fixedly connected with circle piece of base is kept away from to the surface of stock, the surface of circle piece runs through and is provided with the press bar, the surface one end fixedly connected with of press bar presses the briquetting, the surface cover of press bar is equipped with buffer spring.
Preferably, the first sliding groove is formed in the top of the outer surface of the detection table, and one side, far away from the second sliding groove, of the outer surface of the first sliding block is fixedly connected with the first clamping block.
Preferably, the outer surface of the second sliding block is in sliding connection with the inner wall of the first sliding groove, and the outer surface of the bidirectional threaded rod is in opposite symmetrical arrangement in thread shape.
Preferably, the outer surface of the sliding block is slidably connected with the inner wall of the sliding groove.
Preferably, the outer surface of the positioning disc is provided with a clamping hole, and the size and the shape of the inner wall of the clamping hole are matched with the size and the shape of the outer surface of the clamping rod.
Preferably, two ends of the torsion spring are respectively and fixedly connected with one side of the outer surface of the clamping block and one side of the outer surface of the mounting block.
Preferably, two ends of the buffer spring are respectively and fixedly connected with one end of the outer surface of the pressing rod and the top of the outer surface of the round block.
The detection device of the pilot operated safety valve has the advantages that: the clamping device provided by the invention is often required to be fixed when the safety valve needs to be detected, the safety valve is easy to shift due to only one fixing procedure in the conventional fixing mode, the safety valve can be fixed by the fixing column from four directions due to the clamping action of the first clamping block and the second clamping block arranged on the device, the fixing is more stable, the whole operation is very simple and easy to realize, a display screen of the detection device is used for a long time by the arranged cleaning device, a large amount of dust can be accumulated on the outer surface of the detection device, a worker needs to search the hairbrush for cleaning, the hairbrush arranged on the device is used for cleaning the screen without wasting labor, the push-pull rod can be stored when the cleaning is not required, the push-pull rod does not occupy the space, the safety valve is very convenient and fast, and a garbage can be arranged between the operation rooms of ordinary workers by the arranged anti-dumping device, and the garbage bin is touched by the mistake very much and is stumbled, makes the rubbish in the garbage bin dump out, needs the clearance of hard again, and latch closure and the fixture block interact through the device setting for the garbage bin is fixed firm can not be dumped, and through the extrusion device who sets up, when rubbish in the garbage bin was full, can be through the pressing effect of pressing the briquetting, makes rubbish compressed, makes the garbage bin can adorn more rubbish down, easy operation, and the practicality is strong.
Drawings
Fig. 1 is a schematic front view of a detection device of a pilot operated safety valve according to the present invention;
fig. 2 is a rear view of a detecting device of a pilot operated safety valve according to the present invention;
FIG. 3 is an enlarged schematic view of a portion of the structure of FIG. 2 according to the present invention;
FIG. 4 is an enlarged schematic view of a portion of the structure of FIG. 2 in accordance with the present invention;
FIG. 5 is an enlarged schematic view of FIG. 1 at A in accordance with the present invention;
fig. 6 is an enlarged schematic view of the structure of fig. 4 at B.
In the figure: 1. a base; 2. a display stand; 3. a detection table; 4. an operation table; 5. a clamping device; 51. mounting a plate; 52. a first chute; 53. a one-way threaded rod; 54. a first clamping block; 55. a second chute; 56. a first slider; 57. a bidirectional threaded rod; 58. a second slider; 59. an L-shaped rod; 510. a second clamping block; 6. a cleaning device; 61. a sliding groove; 62. fixing a rod; 63. a slider; 64. a groove block; 65. a round bar; 66. positioning the disc; 67. a push-pull rod; 68. a position clamping rod; 69. a brush; 7. an anti-toppling device; 71. mounting blocks; 72. a rectangular block; 73. a rod member; 74. a clamping block; 75. a torsion spring; 76. looping; 77. a trash can; 8. an extrusion device; 81. a long rod; 82. a round block; 83. a pressing lever; 84. a pressing block; 85. a buffer spring.
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.
Referring to fig. 1-6, a detection device of a guide's formula relief valve, including base 1, display station 2, examine test table 3 and operation panel 4, display station 2, the surface bottom of examining test table 3 and operation panel 4 all with base 1's surface top fixed connection, display station 2 is located and examines between test table 3 and the operation panel 4, the surface top of examining test table 3 is provided with clamping device 5, one side that the surface of display station 2 is close to operation panel 4 is provided with cleaning device 6, surface one side of base 1 is provided with anti-overturning device 7 and extrusion device 8.
The clamping device 5 comprises a mounting plate 51 and a first sliding groove 52, the first sliding groove 52 is arranged at the top of the outer surface of the detection table 3, a one-way threaded rod 53 penetrates through the outer surface of the mounting plate 51, one end of the outer surface of the one-way threaded rod 53 is rotatably connected with a first clamping block 54, the one-way threaded rod 53 is rotated to extrude the first clamping block 54, a second sliding groove 55 is arranged at one side, close to the detection table 3, of the outer surface of the display table 2, a first sliding block 56 is slidably connected with the inner wall of the second sliding groove 55, so that the first clamping block 54 slides along the inner wall of the second sliding groove 55 under the action of the first sliding block 56, one side, far away from the second sliding groove 55, of the outer surface of the first sliding block 56 is fixedly connected with the first clamping block 54, one side of the inner wall of the first sliding groove 52 is rotatably connected with a two-way threaded rod 57, the outer surface thread shapes of the two-way threaded rod 57 are arranged in opposite symmetry, two-way threaded rod 57's surface symmetry threaded connection has second slider 58, the surface of second slider 58 and the inner wall sliding connection of first spout 52, rotate two-way threaded rod 57, two-way threaded rod 57 rotates and to make second slider 58 be the motion in opposite directions in first spout 52, the surface top fixedly connected with L shape pole 59 of second slider 58, the motion of second slider 58 can drive the motion of L shape pole 59, the surface one end fixedly connected with second grip block 510 of L shape pole 59, the motion of L shape pole 59 can drive the motion of second grip block 510.
The cleaning device 6 comprises a sliding groove 61, the sliding groove 61 is arranged on one side of the outer surface of the display platform 2 close to the operation platform 4, a fixed rod 62 is fixedly connected between two sides of the inner wall of the sliding groove 61, a sliding block 63 is slidably connected with the outer surface of the fixed rod 62, the outer surface of the sliding block 63 is slidably connected with the inner wall of the sliding groove 61, a push-pull rod 67 is pushed to enable the sliding block 63 to slide along the inner wall of the sliding groove 61, a groove block 64 is fixedly connected with one side of the outer surface of the sliding block 63, a round rod 65 is fixedly connected between two sides of the inner wall of the groove block 64, a positioning disc 66 is rotatably connected with the outer surface of the round rod 65, a push-pull rod 67 is fixedly connected with the outer surface of the positioning disc 66, a clamping rod 68 is arranged on one side of the outer surface of the groove block 64 in a penetrating manner, a clamping hole is formed in the outer surface of the positioning disc 66, and the size and shape of the inner wall of the clamping hole are matched with the size and shape of the outer surface of the clamping rod 68, when the push-pull rod 67 is rotated and the push-pull rod 67 moves to the horizontal position, the clamping rod 68 is pressed inwards, so that the clamping rod 68 is clamped into the clamping hole, the bottom of the outer surface of the sliding block 63 is fixedly connected with the brush 69, and the sliding block 63 moves to drive the brush 69 to move.
The anti-toppling device 7 comprises an installation block 71, one side of the outer surface of the installation block 71 is fixedly connected with one side of the outer surface of the base 1, two rectangular blocks 72 are symmetrically and fixedly connected with the top of the outer surface of the installation block 71, one side of the outer surface of the two rectangular blocks 72 is fixedly connected with a rod piece 73, a clamping block 74 is connected with the outer surface of the rod piece 73 in a rotating mode, a torsion spring 75 is sleeved on the outer surface of the rod piece 73, two ends of the torsion spring 75 are fixedly connected with one side of the outer surface of the clamping block 74 and one side of the outer surface of the installation block 71 respectively, the clamping block 74 is pulled upwards, the torsion spring 75 can deform when the clamping block 74 rotates on the rod piece 73, the clamping block 74 is loosened, the clamping block 74 is clamped on the garbage can 77, one side of the outer surface of the installation block 71, which is far away from the base 1, a garbage can 77 is connected with a ring buckle 76, and the garbage can 77 slides into the ring buckle 76.
The working principle is as follows: when the safety valve is used, when the safety valve needs to be detected, the safety valve needs to be fixed firstly, at the moment, the bidirectional threaded rod 57 is rotated firstly, the bidirectional threaded rod 57 rotates to enable the second sliding block 58 to move oppositely in the first sliding groove 52, the second sliding block 58 moves to drive the L-shaped rod 59 to move, the L-shaped rod 59 moves to drive the second clamping block 510 to move, the rotation is stopped when the L-shaped rod is contacted with the outer surface of the safety valve, then the unidirectional threaded rod 53 rotates to extrude the first clamping block 54, the first clamping block 54 slides along the inner wall of the second sliding groove 55 under the action of the first sliding block 56, the first clamping block 54 stops when being contacted with the surface of an object to finish the fixation, when the outer surface of the display platform 2 needs to be cleaned, the push-pull rod 67 is rotated, and when the push-pull rod 67 moves to the horizontal position, the clamping rod 68 is pressed inwards to enable the clamping rod 68 to be clamped into the push-pull clamping hole, push-and-pull rod 67 at this moment, make the sliding block 63 slide along the inner wall of sliding tray 61, the sliding block 63 motion can drive the motion of brush 69, clean the surface of display station 2, when needs are prevented empting fixedly to garbage bin 77, upwards stimulate fixture block 74 earlier, can make torsional spring 75 take place the deformation when fixture block 74 rotates on member 73, slide garbage bin 77 into the latch 76, loosen fixture block 74, make fixture block 74 block on garbage bin 77, accomplish the fixed of garbage bin 77, when needs compress the rubbish in the garbage bin 77, press the pressure bar 83 downwards according to pressing, press the motion of bar 83 to drive and press briquetting 84 downstream, press the motion of bar 83 simultaneously and can compress buffer spring 85, when loosening pressure bar 83, under buffer spring 85's effect, press bar 83 can resume the original state.
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 the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. The utility model provides a detection apparatus of guide's formula relief valve, includes base (1), display station (2), detects platform (3) and operation panel (4), its characterized in that: the bottom of the outer surface of each of the display table (2), the detection table (3) and the operation table (4) is fixedly connected with the top of the outer surface of the base (1), the display table (2) is positioned between the detection table (3) and the operation table (4), the top of the outer surface of the detection table (3) is provided with a clamping device (5), one side, close to the operation table (4), of the outer surface of the display table (2) is provided with a cleaning device (6), and one side of the outer surface of the base (1) is provided with an anti-tilting device (7) and an extrusion device (8);
clamping device (5) are including mounting panel (51) and first spout (52), the surface of mounting panel (51) runs through and is provided with one-way threaded rod (53), the surface one end of one-way threaded rod (53) is rotated and is connected with first grip block (54), second spout (55) have been seted up to the surface of display station (2) near one side of examining test table (3), the inner wall sliding connection of second spout (55) has first slider (56), inner wall one side of first spout (52) is rotated and is connected with two-way threaded rod (57), the surface symmetry threaded connection of two-way threaded rod (57) has second slider (58), the surface top fixedly connected with L shape pole (59) of second slider (58), the surface one end fixedly connected with second grip block (510) of L shape pole (59).
2. The check device of a pilot operated safety valve according to claim 1, wherein: cleaning device (6) include sliding tray (61), sliding tray (61) are seted up in the surface of display station (2) and are close to one side of operation panel (4), fixedly connected with decides pole (62) between the inner wall both sides of sliding tray (61), the surface sliding connection of deciding pole (62) has sliding block (63), surface one side fixedly connected with groove piece (64) of sliding block (63), fixedly connected with round bar (65) between the inner wall both sides of groove piece (64), the surface rotation of round bar (65) is connected with location disc (66), the surface fixedly connected with push-and-pull rod (67) of location disc (66), the surface one side of groove piece (64) is run through and is provided with screens pole (68), the surface bottom fixedly connected with brush (69) of sliding block (63).
3. The check device of a pilot operated safety valve according to claim 1, wherein: anti-toppling device (7) are including installation piece (71), surface one side of installation piece (71) and surface one side fixed connection of base (1), two rectangular blocks (72) of the symmetrical fixedly connected with in surface top of installation piece (71), two one side fixedly connected with member (73) that the surface of rectangular block (72) is relative, the surface rotation of member (73) is connected with fixture block (74), the surface cover of member (73) is equipped with torsional spring (75), one side fixedly connected with latch closure (76) of base (1) are kept away from to the surface of installation piece (71), the inner wall sliding connection of latch closure (76) has garbage bin (77).
4. The check device of a pilot operated safety valve according to claim 1, wherein: extrusion device (8) are including stock (81), the surface one end and base (1) fixed connection of stock (81), the one end fixedly connected with circle piece (82) of base (1) are kept away from to the surface of stock (81), the surface of circle piece (82) runs through and is provided with press ram (83), the surface one end fixedly connected with of press ram (83) presses pressure piece (84), the surface cover of press ram (83) is equipped with buffer spring (85).
5. The check device of a pilot operated safety valve according to claim 1, wherein: the first sliding groove (52) is formed in the top of the outer surface of the detection table (3), and one side, far away from the second sliding groove (55), of the outer surface of the first sliding block (56) is fixedly connected with the first clamping block (54).
6. The check device of a pilot operated safety valve according to claim 1, wherein: the outer surface of the second sliding block (58) is in sliding connection with the inner wall of the first sliding groove (52), and the outer surface of the bidirectional threaded rod (57) is in opposite symmetrical arrangement in thread shape.
7. The check device of a pilot operated safety valve according to claim 2, wherein: the outer surface of the sliding block (63) is in sliding connection with the inner wall of the sliding groove (61).
8. The check device of a pilot operated safety valve according to claim 3, wherein: the outer surface of the positioning disc (66) is provided with a clamping hole, and the size and the shape of the inner wall of the clamping hole are matched with the size and the shape of the outer surface of the clamping rod (68).
9. The check device of a pilot operated safety valve according to claim 3, wherein: and two ends of the torsion spring (75) are fixedly connected with one side of the outer surface of the clamping block (74) and one side of the outer surface of the mounting block (71) respectively.
10. The pilot operated safety valve inspection device according to claim 4, wherein: two ends of the buffer spring (85) are respectively and fixedly connected with one end of the outer surface of the pressing rod (83) and the top of the outer surface of the round block (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346084.6A CN113484012B (en) | 2020-11-26 | 2020-11-26 | Detection apparatus for pilot operated safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011346084.6A CN113484012B (en) | 2020-11-26 | 2020-11-26 | Detection apparatus for pilot operated safety valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113484012A true CN113484012A (en) | 2021-10-08 |
| CN113484012B CN113484012B (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011346084.6A Active CN113484012B (en) | 2020-11-26 | 2020-11-26 | Detection apparatus for pilot operated safety valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN113484012B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0875611A (en) * | 1994-09-07 | 1996-03-22 | Sakane Techno Kk | Tensing apparatus of safety valve |
| CN204450304U (en) * | 2015-02-04 | 2015-07-08 | 周庆忠 | Oil storage safety valve detects double mode positioning clamping device |
| CN207472551U (en) * | 2017-11-14 | 2018-06-08 | 青岛益精机械有限公司 | A kind of pilot formula detector for safety valve |
| CN207888543U (en) * | 2017-12-28 | 2018-09-21 | 长春仁实光电科技有限公司 | A kind of safety valve assembling device rack |
| CN109269799A (en) * | 2018-12-04 | 2019-01-25 | 江苏盐高阀门制造有限公司 | Testboard is used in a kind of detection of safety valve |
| CN210293669U (en) * | 2019-07-15 | 2020-04-10 | 中国石油天然气股份有限公司 | Clamping device |
| CN210347131U (en) * | 2019-07-31 | 2020-04-17 | 陆司政 | Clamping mechanism of safety valve calibration equipment |
| CN211718924U (en) * | 2020-05-19 | 2020-10-20 | 深圳市宝佳终端科技有限公司 | Self-service ticket and card taking machine with display screen protection structure |
-
2020
- 2020-11-26 CN CN202011346084.6A patent/CN113484012B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0875611A (en) * | 1994-09-07 | 1996-03-22 | Sakane Techno Kk | Tensing apparatus of safety valve |
| CN204450304U (en) * | 2015-02-04 | 2015-07-08 | 周庆忠 | Oil storage safety valve detects double mode positioning clamping device |
| CN207472551U (en) * | 2017-11-14 | 2018-06-08 | 青岛益精机械有限公司 | A kind of pilot formula detector for safety valve |
| CN207888543U (en) * | 2017-12-28 | 2018-09-21 | 长春仁实光电科技有限公司 | A kind of safety valve assembling device rack |
| CN109269799A (en) * | 2018-12-04 | 2019-01-25 | 江苏盐高阀门制造有限公司 | Testboard is used in a kind of detection of safety valve |
| CN210293669U (en) * | 2019-07-15 | 2020-04-10 | 中国石油天然气股份有限公司 | Clamping device |
| CN210347131U (en) * | 2019-07-31 | 2020-04-17 | 陆司政 | Clamping mechanism of safety valve calibration equipment |
| CN211718924U (en) * | 2020-05-19 | 2020-10-20 | 深圳市宝佳终端科技有限公司 | Self-service ticket and card taking machine with display screen protection structure |
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|---|---|
| CN113484012B (en) | 2022-10-04 |
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