CN113700961A - Safe quick-operation joint for nuclear power - Google Patents
Safe quick-operation joint for nuclear power Download PDFInfo
- Publication number
- CN113700961A CN113700961A CN202111084951.8A CN202111084951A CN113700961A CN 113700961 A CN113700961 A CN 113700961A CN 202111084951 A CN202111084951 A CN 202111084951A CN 113700961 A CN113700961 A CN 113700961A
- Authority
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- China
- Prior art keywords
- sleeve
- socket body
- spring
- inner sleeve
- nuclear power
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- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims description 32
- 239000010959 steel Substances 0.000 claims description 32
- 230000000694 effects Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 12
- 239000012530 fluid Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/28—Couplings of the quick-acting type with fluid cut-off means
- F16L37/38—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings
- F16L37/40—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of the two pipe-end fittings with a lift valve being opened automatically when the coupling is applied
Abstract
The invention relates to the technical field of quick connectors, and particularly provides a safe quick connector for nuclear power, which comprises a socket and a plug, wherein the socket comprises an outer sleeve component, an inner sleeve component, a socket body, an inner valve component and a connector; the outer sleeve assembly comprises an outer sleeve and an outer sleeve spring, the inner sleeve assembly comprises an inner sleeve and an inner sleeve spring, the socket body comprises a socket body, and the inner valve assembly comprises a valve clack, an inner valve spring and a valve seat; the quick connector can realize quick disconnection among three states of safe connection, safe pressure relief and disconnection, and the first-order natural frequency of the quick connector is more than 35Hz, so that the quick connector has good anti-seismic performance.
Description
Technical Field
The invention relates to the technical field of quick connectors, and particularly provides a safe quick connector for nuclear power, which is suitable for a gas pipeline, can release pressure before disconnection, and effectively prevents people from being injured by throwing due to residual pressure after the pipeline is disconnected.
Background
The quick connector has the characteristics of quick connection and disconnection, and is widely applied to conveying pipelines which need to be frequently plugged and unplugged. Along with the development of the society, many engineering projects and equipment require that quick connectors have the functions of quick connection and disconnection, and also require that the quick connectors have the characteristics of safety, shock resistance, high stability and the like, particularly the quick connectors used by gas systems in nuclear power plants meet the requirements of shock resistance I in operation, the leakage rate is zero, the quick connectors can be firstly decompressed and then disconnected in disconnection, the risk of hurting people due to throwing caused by residual pressure is prevented, and the work is safe and reliable. Practice shows that the existing joint structure is difficult to meet the requirements.
Disclosure of Invention
In order to solve the technical problems, the invention provides a safety quick connector for nuclear power, which not only can realize the functions of quick connection and disconnection, but also has the advantages of high shock resistance, safe pressure relief and more stable work.
The invention is realized in this way, a safe quick joint for nuclear power, including socket and plug, characterized by that, the socket includes overcoat assembly, inside race assembly, socket body, inner valve assembly and joint;
the outer sleeve assembly comprises an outer sleeve and an outer sleeve spring, the inner sleeve assembly comprises an inner sleeve and an inner sleeve spring, the socket body comprises a socket body, and the inner valve assembly comprises a valve clack, an inner valve spring and a valve seat;
the outer sleeve is arranged on the outer side of the inner sleeve, the outer sleeve spring is arranged on the inner side wall of the outer sleeve, one end of the outer sleeve spring is connected with the outer sleeve, the other end of the outer sleeve spring is connected with the inner sleeve, a first movable clamping structure is arranged between the outer sleeve and the inner sleeve, a second movable clamping structure movably clamped with the plug is arranged on the inner sleeve, the socket body is arranged on the inner side of the inner sleeve, one end of the inner sleeve spring is connected with the inner sleeve, the other end of the inner sleeve spring is connected with the socket body, a third movable clamping structure movably clamped with the plug is arranged on the socket body, the connector is detachably connected with the end part of the socket body, the inner valve assembly is arranged in a cavity formed by the connector and the socket body, the valve seat is connected with the connector, one end of the inner valve spring is connected with the valve seat, the other end of the inner valve spring is connected with the valve clack, and the valve clack abuts against the inner wall of the socket body;
one end of the plug is an annular plane end, a sealing surface is arranged on one side, close to the annular plane end, of the outer circular surface of the plug, a positioning surface is arranged on the outer circular surface close to the sealing surface, a positioning groove is arranged on the positioning surface and used for being clamped with the third movable clamping structure, a long trapezoidal groove-shaped guide positioning groove is arranged on the outer circular surface close to the positioning surface and used for being clamped with the second movable clamping structure.
Preferably, first activity joint structure includes button, piece and block spring establish the groove in the endotheca outside, and the block spring setting is in the groove, and the outside and the piece of block spring are connected corresponding position on the overcoat establishes the through-hole, and the button activity joint is in the through-hole, and the diameter of button bottom surface is greater than the diameter of piece.
Further preferably, the second movable clamping structure comprises a plurality of first-stage steel balls, a plurality of through holes which are gradually reduced from outside to inside are formed in the inner sleeve and along one circumference of the inner sleeve, each first-stage steel ball is movably clamped in each through hole, the outer side of each first-stage steel ball abuts against the inner wall of the outer sleeve, the minimum diameter of each through hole is smaller than the diameter of each first-stage steel ball, and the maximum diameter of each through hole is larger than the diameter of each first-stage steel ball.
Further preferably, a first-level snap spring is mounted on the outer side of the end portion of the inner sleeve, and the end portion of the outer sleeve is clamped on the first-level snap spring.
Preferably, the third movable clamping structure comprises a plurality of second-stage steel balls, a plurality of through holes which are gradually reduced from outside to inside are formed in the socket body along one circumference of the socket body, one second-stage steel ball is movably clamped in each through hole, the outer side of each second-stage steel ball abuts against the inner wall of the inner sleeve, the minimum diameter of each through hole is smaller than the diameter of each second-stage steel ball, and the maximum diameter of each through hole is larger than the diameter of each second-stage steel ball.
Further preferably, a second-stage snap spring is mounted on the outer side of the end portion of the socket body, a protrusion is arranged on the inner wall of the inner sleeve, and the protrusion is clamped on the second-stage snap spring.
Further preferably, the inner valve assembly further comprises a guide block, the guide block is installed at one end, far away from the inner valve spring, of the valve clack, the guide block is of a cross structure, and the outer side of the cross structure of the guide block is attached to the inner wall of the socket body.
Further preferably, a plug connector is arranged at one end of the plug, which is far away from the annular plane end head.
Further preferably, the outer sleeve, the inner sleeve and the socket body are respectively provided with a plurality of slow release holes.
Compared with the prior art, the invention has the advantages that:
1. the outer sleeve assembly and the inner sleeve assembly are arranged in the socket, and the plug is provided with the positioning groove and the guide positioning groove, so that the nuclear power safety quick connector realizes three states of safe connection, safe pressure relief and disconnection, ensures the convenience of quick connection and quick disconnection, realizes the function of pressure relief when being disconnected, and ensures the operation safety when being disconnected;
2. when the safety quick connector for nuclear power is in safe connection, the socket and the plug are in sealed connection, and simultaneously have primary complete constraint and secondary guide constraint, and the structure is in a locking state, so that structural micro-deformation caused by fluid impact and vibration during working is reduced, the overall rigidity of the safety quick connector for nuclear power is improved, the anti-seismic performance and the working stability of the safety quick connector for nuclear power are improved, and the sealing effect of the safety quick connector for nuclear power during working is improved;
3. the valve clack is provided with the guide block with the cross-shaped excircle side edge, the cross-shaped excircle side edge of the guide block is attached to the inner circular surface of the socket body during safe connection, safe pressure relief and disconnection, fluid in the inner cavity is divided into four parts through the cross-shaped guide plate, the shock excitation benefit of the fluid passing through the variable-size section is reduced, the bending deformation and the torsional deformation of the inner valve component under vibration and impact are reduced, the first-order natural frequency of the inner valve component is improved, the safe quick connector for nuclear power is more stable in operation, the sealing effect and the anti-seismic performance of the safe quick connector for nuclear power are improved, and noise generated during operation is reduced;
4. the socket body, the inner sleeve and the outer sleeve are provided with the slow release holes, the diameter of the slow release hole of the inner sleeve is larger than that of the slow release holes of the socket body and the outer sleeve, and the slow release holes of the inner sleeve are designed in a variable diameter mode, so that when the safety quick connector for nuclear power is switched to a safe pressure relief state, noise and impact vibration generated when fluid is released through the slow release holes are reduced.
5. The special design structure of the outer sleeve component and the inner sleeve component enables the operation of the safety quick connector for the nuclear power to be two steps of pushing the outer sleeve and pressing the button, the safety quick connector for the nuclear power cannot be disconnected when misoperation or operation sequences are not correct, and safety of the safety quick connector for the nuclear power in switching working states is improved.
Drawings
The invention is described in further detail below with reference to the following figures and embodiments:
FIG. 1 is a schematic view of the overall structure of a safety quick coupling for nuclear power according to the present invention;
FIG. 2 is an enlarged schematic view of the socket of the present invention;
FIG. 3 is an enlarged schematic view of the plug of the present invention;
FIG. 4 is a schematic structural view of a guide plate according to the present invention;
FIG. 5 is a schematic view of another angle structure of the guide plate of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail 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.
Referring to fig. 1, 2 and 3, the present invention provides a safety quick connector for nuclear power, including a socket 10 and a plug 20, the socket 10 including an outer sleeve assembly 110, an inner sleeve assembly 120, a socket body 130, an inner valve assembly 140 and a connector 150;
the outer housing assembly 110 includes an outer housing 111 and an outer housing spring 112, the inner housing assembly 120 includes an inner housing 124 and an inner housing spring 123, the socket body 130 includes a socket body 131, the inner valve assembly 140 includes a valve flap 142, an inner valve spring 143, and a valve seat 144;
the outer sleeve 111 is arranged on the outer side of the inner sleeve 124, the outer sleeve spring 112 is arranged on the inner side wall of the outer sleeve 111, one end of the outer sleeve 111 is connected with the outer sleeve 124, the other end of the outer sleeve 111 is connected with the inner sleeve 124, a first movable clamping structure is arranged between the outer sleeve 111 and the inner sleeve 124, a second movable clamping structure movably clamped with the plug 20 is arranged on the inner sleeve 124, the socket body 131 is arranged on the inner side of the inner sleeve 124, one end of the inner sleeve spring 123 is connected with the inner sleeve 124, the other end of the inner sleeve spring is connected with the socket body 131, a third movable clamping structure movably clamped with the plug 20 is arranged on the socket body 131, the joint 150 is detachably connected with the end part of the socket body 131, the inner valve assembly 140 is arranged in a cavity formed by the joint 150 and the socket body 131, the valve seat 144 is connected with the joint 150, one end of the inner valve spring 143 is connected with the valve seat 144, the other end of the inner valve clack 142, and the clack 142 is abutted against the inner wall of the socket body 131;
one end of the plug 20 is an annular plane end 201, a sealing surface 202 is arranged on one side, close to the annular plane end 201, of the outer circular surface of the plug 20, a positioning surface is arranged on the outer circular surface close to the sealing surface 202, a positioning groove 203 is arranged on the positioning surface, the positioning groove 203 is used for being clamped with a third movable clamping structure, a long trapezoidal groove-shaped guide positioning groove 204 is arranged on the outer circular surface close to the positioning surface, and the guide positioning groove 204 is used for being clamped with a second movable clamping structure.
When the safety quick connector for nuclear power is safely connected, the annular plane end 201 pushes the inner valve assembly 140 to be opened along the axial direction, the sealing surface 202 compresses the inner side wall of the socket body 131 to realize sealing, in order to enhance sealing, a groove is arranged on the inner wall of the socket body 131, an O-shaped ring is arranged in the groove, and the sealing surface 202 compresses the O-shaped ring during sealing; the inner sleeve 124 presses and fixes the third movable clamping structure arranged on the socket body 131 in the positioning groove 203 for primary fastening, and the outer sleeve 111 presses and fixes the second movable clamping structure arranged on the inner sleeve 124 in the guide positioning groove 204 for secondary fastening;
when the safety quick joint for nuclear power is safely decompressed, the outer sleeve assembly 110 is pushed, at the moment, the inner sleeve assembly 120 and the outer sleeve assembly 110 are fixed together through the first movable clamping structure, so that the inner sleeve assembly 120 slides relative to the socket body 130, and the third movable clamping structure is disengaged from the positioning groove 203 of the plug 20, so that the plug 20 is allowed to be separated outwards;
after the plug 20 is separated outwards for a certain distance, the valve clack 142 in the inner valve assembly is closed by itself under the action of the inner valve spring 143, so that the leakage of compressed air at the upstream is avoided;
the medium in the cavity of the plug 20 is dissipated and decompressed through the socket body 131, the inner sleeve 124 and the outer sleeve 111;
when the plug 20 is separated from the second movable clamping structure and the other end of the guide positioning groove 204, the plug 20 is fixed, so that the throwing danger caused by the direct separation of the plug 20 and the socket 10 is prevented;
when the safety quick connector for nuclear power is disconnected, the inner sleeve component 120 and the outer sleeve component 110 can be separated at the moment by pressing the first movable clamping structure;
further pushing on the outer casing 111 causes the second movable catch structure to disengage from the guide detents 204 of the plug 20, thereby allowing the receptacle 10 and the plug 20 to be separated.
As a specific implementation manner of the first movable clamping structure, the first movable clamping structure comprises a button 113, a block 121 and a block spring 122, a groove is formed in the outer side of the inner sleeve 124, the block spring 122 is arranged in the groove, the outer side of the block spring 122 is connected with the block 121, a through hole is formed in a corresponding position on the outer sleeve 111, the button 113 is movably clamped in the through hole, and the diameter of the bottom surface of the button 113 is larger than that of the block 121.
When the safety quick connector for nuclear power is disconnected, the button 113 is pressed downward, so that the block 121 moves downward, and the inner sleeve member 120 and the outer sleeve member 110 are separated.
As a specific implementation manner of the second movable clamping structure, the second movable clamping structure includes a plurality of first-stage steel balls 125, a plurality of through holes gradually reduced from outside to inside are arranged on the inner sleeve 124 along a circumference of the inner sleeve 124, a first-stage steel ball 125 is movably clamped in each through hole, the outer side of the first-stage steel ball 125 abuts against the inner wall of the outer sleeve 111, the minimum diameter of each through hole is smaller than the diameter of the first-stage steel ball 125, and the maximum diameter of each through hole is larger than the diameter of the first-stage steel ball 125.
When the safety quick connector for nuclear power is disconnected, after the inner sleeve component 120 and the outer sleeve component 110 are separated, the outer sleeve 111 is further pushed, so that the first-level steel balls 125 are disengaged from the guide positioning grooves 204 of the plug 20, and the socket 10 and the plug 20 are separated.
For further limiting, a first-level snap spring 126 is mounted on the outer side of the end portion of the inner sleeve 124, and the end portion of the outer sleeve 111 is clamped on the first-level snap spring 126.
When the button 113 is not pressed, the outer sleeve 111 is tightly attached to the first-stage snap spring 126 of the inner sleeve component 120 under the pushing force of the outer sleeve spring 112, the block 121 is in the upper position under the pushing force of the block spring 122, and the block and the button 113 jointly act to lock the outer sleeve component 110 and the inner sleeve component 120;
after the button 113 is pressed, the block 121 which is tightly attached is pushed to move, so that the locking between the outer sleeve component 110 and the inner sleeve component 120 is released, and the outer sleeve component 110 and the inner sleeve component 120 can slide relatively; after the button is released, the outer sleeve assembly 110 and the inner sleeve assembly 120 will return to the original positions under the urging force of the spring.
As a specific implementation manner of the third movable clamping structure, the third movable clamping structure includes a plurality of second-stage steel balls 132, a plurality of through holes gradually decreasing from outside to inside are arranged on the socket body 131 along a circumference of the socket body 131, one second-stage steel ball 132 is movably clamped in each through hole, the outer side of each second-stage steel ball 132 abuts against the inner wall of the inner sleeve 124, the minimum diameter of each through hole is smaller than the diameter of the corresponding second-stage steel ball 132, and the maximum diameter of each through hole is larger than the diameter of the corresponding second-stage steel ball 132.
When the safety quick joint for nuclear power is safely connected, the inner sleeve 120 presses the second-stage steel ball 132 arranged in the hole of the socket body 130 into the positioning groove 203 to realize first-stage fastening.
For further limiting, as an improvement of the technical scheme, a second-stage snap spring 133 is installed on the outer side of the end portion of the socket body 131, a protrusion is arranged on the inner wall of the inner sleeve 124, and the protrusion is clamped on the second-stage snap spring 133.
Referring to fig. 4 and 5, the internal valve assembly 140 further includes a guide block 141, the guide block 141 is installed at an end of the valve flap 142 away from the internal valve spring 143, the guide block 141 is of a cross structure, and an outer side of the cross structure of the guide block 141 is attached to an inner wall of the socket body 131.
When the safety connection, the safety pressure relief and the disconnection, the cross excircle side of the guide block 141 is attached to the inner circular surface of the socket body 131, the fluid in the inner cavity is quartered through the cross guide plate, the shock excitation benefit of the fluid passing through the variable-size cross section is reduced, the bending deformation and the torsional deformation of the inner valve component under the vibration and impact are reduced, the first-order natural frequency of the inner valve component is improved, the safety quick connector for nuclear power is more stable in working, the sealing effect and the anti-seismic performance of the safety quick connector for nuclear power are improved, and the noise generated during working is reduced.
In order to facilitate connection, as a technical improvement, a plug connector 205 is arranged at one end of the plug 20 away from the annular flat head 201.
The connector 205 on the connector 150 and the plug 20 may be one of a flange, a welded connector, a threaded connector
In order to increase the slow release effect, as an improvement of the technical solution, a plurality of slow release holes are respectively formed on the outer sleeve 111, the inner sleeve 124, and the socket body 131. The diameter of the slow release hole on the inner sleeve 124 is larger than that of the slow release hole on the socket body 131 and the outer sleeve 111, and the slow release hole on the inner sleeve 124 adopts a variable diameter design, that is, the slow release hole on the inner sleeve 124 comprises a small diameter hole with an oval cross section and a large diameter hole with a round cross section, the small diameter hole is positioned on the inner side, the large diameter hole is positioned on the outer side, and the two holes are in step transition.
Examples 1,
The nominal diameter of the safety quick connector for nuclear power is DN25, the safety quick connector for nuclear power is manufactured according to the technical scheme in the invention, and the technical requirements of a nuclear power station on the safety quick connector for nuclear power are met by testing that the first-order natural frequency of the safety quick connector for nuclear power is 80.02Hz, the maximum stress is 43.99MPa under the combined action of 1.3 times of working pressure and seismic load, and the helium leakage rate is less than 1 x 10 < -7 > Pa.m 3/s under the working state.
Examples 2,
The nominal diameter of the safety quick connector for nuclear power is DN50, the safety quick connector for nuclear power is manufactured according to the technical scheme in the invention, the first-order natural frequency of the safety quick connector for nuclear power is 58.22Hz, the maximum stress is 73.42MPa under the combined action of 1.3 times of working pressure and seismic load, and the helium leakage rate is less than 1 x 10 < -7 > Pa.m 3/s in the working state, so that the technical requirement of a nuclear power station on the safety quick connector for nuclear power is met.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (9)
1. A safety quick connector for nuclear power comprises a socket (10) and a plug (20), and is characterized in that the socket (10) comprises an outer sleeve component (110), an inner sleeve component (120), a socket body (130), an inner valve component (140) and a connector (150);
the outer sleeve assembly (110) comprises an outer sleeve (111) and an outer sleeve spring (112), the inner sleeve assembly (120) comprises an inner sleeve (124) and an inner sleeve spring (123), the socket body (130) comprises a socket body (131), and the inner valve assembly (140) comprises a valve clack (142), an inner valve spring (143) and a valve seat (144);
the outer sleeve (111) is arranged on the outer side of the inner sleeve (124), the outer sleeve spring (112) is arranged on the inner side wall of the outer sleeve (111), one end of the outer sleeve is connected with the outer sleeve (111), the other end of the outer sleeve is connected with the inner sleeve (124), a first movable clamping structure is arranged between the outer sleeve (111) and the inner sleeve (124), a second movable clamping structure movably clamped with the plug (20) is arranged on the inner sleeve (124), the socket body (131) is arranged on the inner side of the inner sleeve (124), one end of the inner sleeve spring (123) is connected with the inner sleeve (124), the other end of the inner sleeve spring is connected with the socket body (131), a third movable clamping structure movably clamped with the plug (20) is arranged on the socket body (131), the joint (150) is detachably connected with the end part of the socket body (131), the inner valve component (140) is arranged in a cavity formed by the joint (150) and the socket body (131), and the valve seat (144) is connected with the joint (150), one end of an internal valve spring (143) is connected with the valve seat (144), the other end of the internal valve spring is connected with the valve clack (142), and the valve clack (142) is propped against the inner wall of the socket body (131);
plug (20) one end is annular plane end (201), and the outer disc of plug (20) is gone up one side that is close to annular plane end (201) and is provided with sealed face (202), is the locating surface on the outer disc of next-door neighbour sealed face (202), is equipped with constant head tank (203) on the locating surface, and constant head tank (203) are used for with third activity joint structure joint, are direction constant head tank (204) of long trapezoidal flute profile on the outer disc of next-door neighbour locating surface, and direction constant head tank (204) are used for with second activity joint structure joint.
2. The safety quick joint for nuclear power as claimed in claim 1, wherein the first movable clamping structure comprises a button (113), a block (121) and a block spring (122), a groove is formed in the outer side of the inner sleeve (124), the block spring (122) is arranged in the groove, the outer side of the block spring (122) is connected with the block (121), a through hole is formed in the outer sleeve (111) at a corresponding position, the button (113) is movably clamped in the through hole, and the diameter of the bottom surface of the button (113) is larger than that of the block (121).
3. The safety quick joint for nuclear power as claimed in claim 1, wherein the second movable clamping structure comprises a plurality of first-stage steel balls (125), a plurality of through holes which are gradually reduced from outside to inside are formed in the inner sleeve (124) along one circumference of the inner sleeve (124), each first-stage steel ball (125) is movably clamped in each through hole, the outer side of each first-stage steel ball (125) abuts against the inner wall of the outer sleeve (111), the minimum diameter of each through hole is smaller than the diameter of each first-stage steel ball (125), and the maximum diameter of each through hole is larger than the diameter of each first-stage steel ball (125).
4. The safety quick joint for nuclear power as claimed in claim 3, wherein a first-level snap spring (126) is mounted on the outer side of the end of the inner sleeve (124), and the end of the outer sleeve (111) is snapped on the first-level snap spring (126).
5. The safety quick joint for nuclear power as claimed in claim 1, wherein the third movable clamping structure comprises a plurality of second-stage steel balls (132), a plurality of through holes which are gradually reduced from outside to inside are formed in the socket body (131) along one circumference of the socket body (131), each through hole is movably clamped with one second-stage steel ball (132), the outer side of each second-stage steel ball (132) abuts against the inner wall of the inner sleeve (124), the minimum diameter of each through hole is smaller than the diameter of the corresponding second-stage steel ball (132), and the maximum diameter of each through hole is larger than the diameter of the corresponding second-stage steel ball (132).
6. The safety quick connector for the nuclear power as claimed in claim 5, wherein a second-stage snap spring (133) is mounted on the outer side of the end portion of the socket body (131), and a protrusion is arranged on the inner wall of the inner sleeve (124) and clamped on the second-stage snap spring (133).
7. The safety quick connector for nuclear power as claimed in claim 1, wherein the inner valve assembly (140) further comprises a guide block (141), the guide block (141) is installed at one end of the valve flap (142) far away from the inner valve spring (143), the guide block (141) is of a cross structure, and the outer side of the cross structure of the guide block (141) is attached to the inner wall of the socket body (131).
8. The safety quick coupling for nuclear power according to claim 1, characterized in that a plug connector (205) is provided at an end of the plug (20) remote from the annular flat end (201).
9. The safety quick coupling for nuclear power according to claim 1, wherein a plurality of slow release holes are respectively formed in the outer sleeve (111), the inner sleeve (124) and the socket body (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111084951.8A CN113700961A (en) | 2021-09-16 | 2021-09-16 | Safe quick-operation joint for nuclear power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111084951.8A CN113700961A (en) | 2021-09-16 | 2021-09-16 | Safe quick-operation joint for nuclear power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113700961A true CN113700961A (en) | 2021-11-26 |
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ID=78661127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111084951.8A Pending CN113700961A (en) | 2021-09-16 | 2021-09-16 | Safe quick-operation joint for nuclear power |
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| CN (1) | CN113700961A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2427707Y (en) * | 2000-06-26 | 2001-04-25 | 谭锦镛 | Combustible gas quick connection device |
| CN201225476Y (en) * | 2008-06-14 | 2009-04-22 | 浙江大农实业有限公司 | Semiautomatic fast joint |
| CN201636477U (en) * | 2010-04-21 | 2010-11-17 | 浙江锦帆船舶配件制造有限公司 | Quick connector |
| CN205447063U (en) * | 2015-12-29 | 2016-08-10 | 宁波新邦工具有限公司 | Safe type quick -operation joint |
| CN205877472U (en) * | 2016-08-03 | 2017-01-11 | 弗兰科希管件系统（上海）有限公司 | Turbine pressure release pipe |
| CN111779908A (en) * | 2020-08-11 | 2020-10-16 | 宁波新邦科技有限公司 | Universal quick connector |
| CN215950720U (en) * | 2021-09-16 | 2022-03-04 | 中广核工程有限公司 | Safe quick-operation joint for nuclear power |
-
2021
- 2021-09-16 CN CN202111084951.8A patent/CN113700961A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2427707Y (en) * | 2000-06-26 | 2001-04-25 | 谭锦镛 | Combustible gas quick connection device |
| CN201225476Y (en) * | 2008-06-14 | 2009-04-22 | 浙江大农实业有限公司 | Semiautomatic fast joint |
| CN201636477U (en) * | 2010-04-21 | 2010-11-17 | 浙江锦帆船舶配件制造有限公司 | Quick connector |
| CN205447063U (en) * | 2015-12-29 | 2016-08-10 | 宁波新邦工具有限公司 | Safe type quick -operation joint |
| CN205877472U (en) * | 2016-08-03 | 2017-01-11 | 弗兰科希管件系统（上海）有限公司 | Turbine pressure release pipe |
| CN111779908A (en) * | 2020-08-11 | 2020-10-16 | 宁波新邦科技有限公司 | Universal quick connector |
| CN215950720U (en) * | 2021-09-16 | 2022-03-04 | 中广核工程有限公司 | Safe quick-operation joint for nuclear power |
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