CN118149147A - Valve double-nut hand wheel locking device and use method thereof - Google Patents
Valve double-nut hand wheel locking device and use method thereof Download PDFInfo
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- CN118149147A CN118149147A CN202410579765.9A CN202410579765A CN118149147A CN 118149147 A CN118149147 A CN 118149147A CN 202410579765 A CN202410579765 A CN 202410579765A CN 118149147 A CN118149147 A CN 118149147A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000000670 limiting effect Effects 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000008719 thickening Effects 0.000 claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 21
- 238000013016 damping Methods 0.000 claims description 15
- 230000008093 supporting effect Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 abstract description 3
- 230000008569 process Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003872 anastomosis Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of rising stem gate valves, in particular to a valve double-nut hand wheel locking device and a use method thereof, wherein the device comprises a valve rod and a mounting support corresponding to the port part of the valve rod of a gate valve, the mounting support consists of a sealing flange and a thickening cover, and the device further comprises: the load bearing support is connected with the mounting support through bolts and is integrally formed by a load bearing cover body and a load bearing bracket; the upper nut is integrally formed by a lower hexagonal prism sleeve and an upper cylindrical sleeve; and the three groups of first limiting mechanisms are circumferentially distributed at equal intervals. According to the invention, the lower nut is formed by the lower cylindrical sleeve, the middle cylindrical sleeve and the upper hexagonal sleeve, the upper nut is formed by the lower hexagonal sleeve and the upper cylindrical sleeve, and the traction pull rod is positioned at an angle by arranging the threaded rod in threaded connection with the threaded sleeve, so that the guiding mobile station is closed to form the limit groove of the annular structure, and balanced stress support is provided for the hand lever driving piece, so that the torque resistance of the hand lever driving piece is higher.
Description
Technical Field
The invention relates to the technical field of rising stem gate valves, in particular to a valve double-nut hand wheel locking device and a use method thereof.
Background
The open-close part of the open-lever gate valve is a gate plate, the moving direction of the gate plate is vertical to the fluid direction, and the open-lever gate valve can only be fully opened and fully closed and cannot be adjusted and throttled. Compared with a hidden rod gate valve, the most obvious difference is that a valve rod in the exposed rod gate valve can be exposed outside the gate valve, the existing exposed rod gate valve hand wheel is generally sleeved on a valve rod nut, a hand wheel nut above the hand wheel is screwed on the top end of the valve rod nut, and the hand wheel is fixed on the valve rod nut, so that the whole structure of the gate valve is light and simple, but the gate valve still has the defects in use:
firstly, the existing hand wheel nut is generally made of a mild steel or gray iron material, has low strength, has no anti-loosening and self-locking functions, and has the risk of loosening and falling off in the use process of the gate valve;
Secondly, the valve rod is large in length, the top end part of the valve rod can be extended and exposed outside the gate valve in the process of controlling the gate valve to be opened and closed, the existing gate valve only depends on a single valve rod nut to drive the valve rod, so that the valve rod is extremely easy to have the problem of uneven stress, and the valve rod and the valve plate are inclined and deflected in the telescopic movement process, so that abrasion among the valve rod, the valve plate and the gate valve is aggravated;
Finally, a larger position gap exists between the existing valve rod nut and the gate valve main body, only a single supporting structure in the gate valve is used for supporting the valve rod nut, severe extrusion between the valve rod nut and the valve rod is extremely easy to cause in the process of screwing the valve rod nut to drive the valve rod to move in a telescopic manner, and structural deformation and even breakage of the valve rod nut are easy to cause while screw abrasion between the valve rod and the valve rod nut is easy to be aggravated.
Disclosure of Invention
The invention aims to solve the problem that a rising stem gate valve in the prior art lacks a nut locking protection function, and provides a double-nut hand wheel locking device for a valve and a use method thereof.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a valve double nut hand wheel locking device, includes the valve rod and corresponds the erection support at valve rod port position of gate valve installation, and the erection support comprises sealing flange and thickening cover, still includes:
the load bearing support is connected with the mounting support through bolts and is integrally formed by a load bearing cover body and a load bearing bracket;
The lower nut and the upper nut are arranged from bottom to top, the lower nut is integrally formed by a lower cylindrical sleeve, a middle cylindrical sleeve and an upper hexagonal prism sleeve, and the upper nut is integrally formed by a lower hexagonal prism sleeve and an upper cylindrical sleeve;
the three groups of first limiting mechanisms are circumferentially and equidistantly distributed and are arranged through the mounting support and the load support, and the first limiting mechanisms are used for sealing and guiding the lower nuts;
The hand lever driving piece is fixedly sleeved on the lower nut and the upper nut and consists of a central hexagonal pipe, a connecting plate and a handle ring;
And the three groups of second limiting mechanisms are circumferentially distributed at equal intervals, the three groups of second limiting mechanisms are arranged through the load bearing support, and the second limiting mechanisms are used for guiding the limiting hand lever driving piece.
Preferably, the mounting support, the load support, the lower nut, the upper nut and the hand lever driving piece are arranged from bottom to top, and the valve rod is arranged in the gate valve through the mounting support, the load support, the lower nut, the upper nut and the hand lever driving piece with the center corresponding to the opening.
Preferably, the mounting support is assembled and connected with the gate valve through a sealing flange, and the load support and the mounting support are assembled and connected with the thickening cover through a load bearing cover body;
The lower nut is sleeved in the thickening cover and the bearing cover body through the lower cylindrical sleeve, and the lower nut and the upper nut are sleeved in the central hexagonal tube through the upper hexagonal tube and the lower hexagonal tube.
Preferably, the first limiting mechanism includes:
The sealing ring groove and the sealing flange sleeved in the sealing ring groove are arranged in the inner wall of the thickened cover, and the sealing flange is fixedly sleeved on the outer wall of the lower cylindrical sleeve;
The communication cavity is arranged in the lower cylindrical sleeve;
The first guide piston and the second guide piston are sleeved on the first guide piston in a sliding manner, the first guide piston is fixedly arranged in the opening at the lower end of the communication cavity, and the second guide piston is sleeved in the opening at the lower end of the communication cavity in a sliding manner through the first guide piston;
The first powerful spring is fixedly sleeved on one end of the first guide piston, which is positioned in the second guide piston, and the second powerful spring is fixedly sleeved on one end of the second guide piston, which extends out of the lower end of the communication cavity;
The guide ring and the guide ring groove of the movable sleeved second guide piston are integrally connected to the bottom end position of the lower cylindrical sleeve, and the guide ring groove is concentrically arranged in the guide ring;
The damping ball is sleeved on the top end of the second guide piston in a rolling way, and the damping ball is sleeved in the guide ring groove in a rolling way;
the right-angle through pipe is fixedly connected to the thickening cover, the lower port of the right-angle through pipe corresponds to the upper end opening of the communication cavity, and the limit ring groove is horizontally arranged on the lower cylindrical sleeve;
The piston guide piece is sleeved in the upper port of the right-angle through pipe in a sliding manner, and one end, extending out of the right-angle through pipe, of the piston guide piece is sleeved in the limit ring groove in a sliding manner.
Preferably, the communication cavity is 匚 -shaped, and the second guide piston is a cross structure with an opening at the lower end.
Preferably, the second limiting mechanism includes:
The guide long hole is horizontally arranged in the upper end of the bearing bracket, and the guide moving table is slidably arranged on the bearing bracket through the guide long hole;
the guide mobile platform comprises a driven through hole and a traction pull rod, wherein the driven through hole is vertically arranged on the guide mobile platform, a pin shaft of the traction pull rod is arranged at the lower end of a bearing bracket, and the traction pull rod is sleeved in the driven through hole in a sliding manner;
The universal joint is fixedly arranged on the traction pull rod;
The device comprises a threaded rod and a threaded sleeve, wherein the threaded rod is in threaded connection, the threaded rod is fixedly connected to a universal joint, and a pin shaft of the threaded sleeve is arranged on a bearing bracket;
The guide device comprises a limiting groove and a limiting slide block, wherein the limiting groove is horizontally formed in a guide moving table, the limiting slide block is fixedly arranged on a central hexagonal tube, and the limiting slide block is slidably sleeved in the limiting groove.
Preferably, the second limiting mechanism is located at a position below the hand lever driving member.
The application method of the valve double-nut hand wheel locking device comprises the following steps:
Step S1, abutting the lower nut and the upper nut, sleeving a valve rod in the lower nut and the upper nut in sequence, fixedly sleeving a hand rod driving piece on the lower nut and the upper nut through a central hexagonal pipe, and sleeving a lower cylindrical sleeve in the lower nut in a thickening cover and a bearing cover body;
S2, sleeving the sealing flange in the sealing ring groove, sleeving the second guiding piston top end by the guiding ring groove, enabling the guiding ring groove to roll and sleeve damping balls, extruding the second guiding piston by the guiding ring to shrink into the communicating cavity by the lower cylindrical sleeve, enabling the piston guiding piece in the right-angle through pipe to extend outwards, and sleeving the piston guiding piece in the limiting ring groove;
S3, rotating a threaded rod on the bearing support to adjust the overall length of the threaded rod and the threaded sleeve, and fixing the deflection angle of the traction pull rod through a universal joint to fix the position of the guiding mobile station in the guiding long hole, so that three guiding mobile stations in the three groups of second limiting mechanisms are assembled to form an annular structure arranged around the hand rod driving piece, and simultaneously forming an annular structure limiting groove corresponding to the limiting slide block;
s4, driving the hand lever driving piece through rotating the grip ring, and providing a supporting effect for the hand lever driving piece by utilizing the second limiting mechanism so that the lower nut and the upper nut rotate;
S5, the lower nut drives the guide ring to move, so that the damping ball rolls in the guide ring groove, the second guide piston is always pressed, and the piston guide piece positioned in the limit ring groove always provides a supporting function for the lower nut;
and S6, the lower nut and the upper nut drive the valve rod to move in a telescopic manner in the gate valve so as to realize the opening and closing regulation of the gate valve.
Compared with the prior art, the invention has the following advantages:
1. the lower nut is formed by the lower cylindrical sleeve, the middle cylindrical sleeve and the upper hexagonal prism sleeve, the upper nut is formed by the lower hexagonal prism sleeve and the upper cylindrical sleeve, the valve rod in the gate valve is jointly installed by the lower nut and the upper nut, and the hand rod driving piece is sleeved by the lower nut and the upper nut together, so that the self-locking and looseness-preventing effects are remarkable.
2. According to the invention, through arranging the mounting support and the load bearing support with the double-layer structure, the thickening cover and the bearing cover are used for sleeving the lower cylindrical sleeve in the lower nut, the sealing ring groove and the sealing flange are used for realizing matched sealing, meanwhile, the communicating cavity and the right-angle through pipe are arranged, and the first guide piston and the second guide piston which are synchronously supported by the first strong spring and the second strong spring are arranged between the lower cylindrical sleeve and the communicating cavity, so that the lower cylindrical sleeve sleeved and rotated in the mounting support and the load bearing support can drive the piston guide piece sleeved in the right-angle through pipe in a telescopic manner, so that the lower nut is horizontally guided from the upper end position, and the hand lever driving piece is prevented from falling off.
3. According to the invention, a central hexagonal pipe, a connecting plate and a grip ring form a hand lever driving piece, a bearing bracket with a triangular structure is arranged on a load bearing support, and a traction pull rod is positioned at an angle by arranging a threaded rod and a threaded sleeve which are in threaded connection, so that three guiding mobile stations distributed at equal intervals in the circumferential direction are closed to form a limit groove with a ring structure, and balanced stress support is provided for the hand lever driving piece rotating at a high position, so that the torque resistance of the hand lever driving piece is higher.
Drawings
Fig. 1 is a schematic structural view of a locking device for a double-nut hand wheel of a valve according to the present invention;
FIG. 2 is a bottom view of a valve double nut hand wheel locking device according to the present invention;
FIG. 3 is a schematic view of the structure of the mounting support and the load support of the locking device of the double nut hand wheel of the valve;
Fig. 4 is a schematic diagram of the lower nut and the upper nut of the locking device for the valve double-nut hand wheel according to the present invention;
FIG. 5 is a schematic front cross-sectional view of a valve double nut hand wheel locking device according to the present invention;
FIG. 6 is an enlarged schematic view of the portion A of FIG. 5 according to the present invention;
FIG. 7 is a schematic side sectional view of a valve double nut hand wheel locking device according to the present invention;
FIG. 8 is a schematic oblique section view of a valve double nut hand wheel locking device according to the present invention;
FIG. 9 is an enlarged schematic view of the portion B of FIG. 8 in accordance with the present invention;
Fig. 10 is a schematic diagram of a lever driving member of a locking device for a valve double-nut hand wheel according to the present invention;
Fig. 11 is an enlarged schematic view of the C-section structure of fig. 6 according to the present invention.
In the figure: 1. a mounting support; 101. a sealing flange; 102. thickening the cover; 2. a load bearing; 201. a load-bearing cover; 202. a bearing bracket; 3. a lower nut; 301. a cylindrical sleeve is arranged; 302. a middle cylindrical sleeve; 303. a hexagonal prism sleeve is arranged on the upper part; 4. a top nut; 401. a hexagonal prism sleeve is arranged; 402. a cylindrical sleeve is arranged on the upper part; 5. a hand lever driving member; 501. a central hexagonal tube; 502. a splice plate; 503. a grip ring; 6. a valve stem; 7. sealing ring grooves; 8. a sealing flange; 9. a communication chamber; 10. a first pilot piston; 11. a second pilot piston; 12. a first strong spring; 13. a second strong spring; 14. a guide ring; 15. a guide ring groove; 16. damping balls; 17. a right-angle through pipe; 18. a limit ring groove; 19. a piston guide; 20. a guide long hole; 21. guiding the mobile station; 22. a driven through hole; 23. a traction pull rod; 24. a universal joint; 25. a threaded rod; 26. a threaded sleeve; 27. a limit groove; 28. and a limit sliding block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-11, a locking device for a double nut hand wheel of a valve comprises a valve rod 6 and a mounting support 1 corresponding to the port of the valve rod 6 of the gate valve, wherein the mounting support 1 comprises a sealing flange 101 and a thickening cover 102, the mounting support 1 is assembled and connected with the gate valve through the sealing flange 101, and a rubber ring propped against the gate valve is embedded in the sealing flange 101 to ensure the tightness of connection between the sealing flange and the gate valve, and the locking device further comprises:
The load support 2, load support 2 and installation support 1 bolted connection, and load support 2 comprises load lid 201 and bearing support 202 an organic whole, strengthens the support to lower nut 3 through load lid 201, strengthens the support to hand lever driving piece 5 through bearing support 202 to guarantee the stability of valve rod 6 in the flexible motion in-process of gate valve.
The lower nut 3 and the upper nut 4 for installing the valve rod 6 are specifically referring to fig. 4 of the specification, the lower nut 3 and the upper nut 4 are arranged from bottom to top, the lower nut 3 is integrally formed by a lower cylindrical sleeve 301, a middle cylindrical sleeve 302 and an upper hexagonal sleeve 303, the upper nut 4 is integrally formed by a lower hexagonal sleeve 401 and an upper cylindrical sleeve 402, and the lower nut 3 and the upper nut 4 are used for fixing the hand lever driving piece 5 on the valve rod 6, so that the hand lever driving piece 5 falling caused by looseness is avoided.
Three sets of circumference equidistance distribution's first stop gear, three sets of first stop gear pass through mounting support 1 and load support 2 setting, and first stop gear is used for sealed direction lower nut 3, and specific reference specification figure 5, figure 6 and figure 11, first stop gear includes:
The sealing ring groove 7 and the sealing flange 8 sleeved in the sealing ring groove 7, the sealing ring groove 7 is arranged in the inner wall of the thickened cover 102, the sealing flange 8 is fixedly sleeved on the outer wall of the lower cylindrical sleeve 301, and the sealing flange 8 is supported by adopting a high-toughness, wear-resistant and corrosion-resistant silica gel material and can be in smooth contact with the sealing ring groove 7, so that the connection tightness between the lower nut 3 and the mounting support 1 is ensured in the process that the sealing flange 8 rotates along with the lower nut 3, and meanwhile, the balance degree between the lower cylindrical sleeve 301 and the thickened cover 102 is maintained;
a communication cavity 9, the communication cavity 9 being opened in the lower cylindrical sleeve 301;
The first guide piston 10 and the second guide piston 11 which are sleeved on the first guide piston 10 in a sliding manner, the first guide piston 10 is fixedly arranged in the opening at the lower end of the communication cavity 9, the second guide piston 11 is sleeved in the opening at the lower end of the communication cavity 9 in a sliding manner through the first guide piston 10, and it is worth to say that the first guide piston 10 and the second guide piston 11 which are connected in a sleeved manner are arranged, so that the second guide piston 11 performs stable linear reciprocating telescopic movement in the rotating process of the lower nut 3, and the pressing driving effect of the second guide piston 11 on the piston guide piece 19 is ensured;
The first powerful spring 12 and the second powerful spring 13 are fixedly sleeved on one end of the first guide piston 10, which is positioned in the second guide piston 11, the second powerful spring 13 is fixedly sleeved on one end of the second guide piston 11, which extends out of the lower end of the communication cavity 9, and the first powerful spring 12 and the second powerful spring 13 both adopt tension springs, so that the second guide piston 11 always keeps the trend of moving towards the outside of the communication cavity 9 and the inside of the guide ring groove 15, dynamic friction between the damping balls 16 and the guide ring groove 15 is ensured, and the second guide piston 11 is prevented from being driven by the rotating guide ring 14 to horizontally move or incline;
The guide ring 14 and a guide ring groove 15 movably sleeved with the second guide piston 11 are integrally connected to the bottom end position of the lower cylindrical sleeve 301, the guide ring groove 15 is concentrically arranged in the guide ring 14, and the guide ring 14 sleeved with the lower nut 3 in the mounting support 1 is sleeved with the second guide piston 11 and the damping ball 16 through the guide ring groove 15 so as to press and drive the piston guide piece 19;
the damping ball 16 is sleeved on the top end of the second guide piston 11 in a rolling way, and the damping ball 16 is sleeved in the guide ring groove 15 in a rolling way, so that the guide ring 14 and the second guide piston 11 are in a movable connection relationship, and the influence on the acting force of the second guide piston 11 in the horizontal direction in the rotation process of the guide ring 14 is reduced;
The right-angle through pipe 17 and the limit ring groove 18 corresponding to the upper port of the right-angle through pipe 17 are fixedly connected to the thickening cover 102, the lower port of the right-angle through pipe 17 corresponds to the upper end opening of the communication cavity 9, and the limit ring groove 18 is horizontally arranged on the lower cylindrical sleeve 301;
The piston guide piece 19, the piston guide piece 19 sliding sleeve is in the upper port of the right-angle through pipe 17, and the end of the piston guide piece 19 extending out of the right-angle through pipe 17 sliding sleeve is in the limit ring groove 18, under the pressurizing action of the second guiding piston 11, the piston guide piece 19 extends out of the right-angle through pipe 17 and is in sleeve in the limit ring groove 18, so as to provide guiding limit action for the rotating lower nut 3.
The hand lever driving piece 5, the fixed suit of hand lever driving piece 5 is on lower nut 3 and last nut 4, and hand lever driving piece 5 comprises central six arriss pipe 501, linking board 502 and handle ring 503 an organic wholely, and central six arriss pipe 501 and handle ring 503 set up with one heart to add the screw thread on holding ring 503 to increase frictional resistance, can increase the moment of torsion through rotatory handle ring 503 that has the major diameter simultaneously, help improving the anti moment of torsion intensity of hand lever driving piece 5 in the gate valve.
Three sets of second stop gear that circumference equidistance distributes, three sets of second stop gear pass through load support 2 setting, and second stop gear is used for leading spacing hand lever driving piece 5, and specific reference specification figure 3, figure 8 and figure 9, second stop gear includes:
The guide long hole 20 and the guide moving table 21 positioned in the guide long hole 20, the guide long hole 20 is horizontally arranged in the upper end of the bearing bracket 202, the guide moving table 21 is slidably arranged on the bearing bracket 202 through the guide long hole 20, it is to be noted that the guide moving table 21 realizes opening and closing movement adjustment along the guide long hole 20 in the horizontal direction, and an annular structure surrounding the central six-edge pipe 501 is formed in a closed state;
the driven through hole 22 and the traction pull rod 23, the driven through hole 22 is vertically arranged on the guide moving table 21, the traction pull rod 23 is arranged at the lower end position of the bearing bracket 202 through a pin shaft, the traction pull rod 23 is sleeved in the driven through hole 22 in a sliding manner, and the guide moving table 21 can be arranged at different positions in the guide long hole 20 through driving the traction pull rod 23 to perform angle adjustment;
a universal joint 24, the universal joint 24 is fixedly installed on the traction rod 23 to match the rotation of the threaded rod 25 and the deflection movement of the traction rod 23;
The threaded rod 25 and the threaded sleeve 26 are in threaded connection, the threaded rod 25 is fixedly connected to the universal joint 24, the threaded sleeve 26 is installed on the bearing bracket 202 through a pin shaft, and the integral length of the threaded rod 25 and the threaded sleeve 26 can be adjusted by driving the threaded rod 25 to rotate, so that the traction pull rod 23 deflected to any angle is fixed in angle;
The limiting groove 27 and the limiting slide block 28 are horizontally arranged on the guiding moving table 21, the limiting slide block 28 is fixedly arranged on the central hexagonal pipe 501, the limiting slide block 28 is slidably sleeved in the limiting groove 27, and the hand lever driving piece 5 drives the limiting slide block 28 to slide in the limiting groove 27 so as to provide a supporting effect for the hand lever driving piece 5 and prevent the hand lever driving piece 5 arranged at a high position from applying force by means of the valve rod 6.
Based on this, further explanation is that:
the mounting support 1, the load support 2, the lower nut 3, the upper nut 4 and the hand lever driving piece 5 are arranged from bottom to top, and the valve rod 6 is arranged in the gate valve through the mounting support 1, the load support 2, the lower nut 3, the upper nut 4 and the hand lever driving piece 5 with corresponding openings in the center.
The load bearing support 2 and the mounting support 1 are assembled and connected with the thickening cover 102 through the load bearing cover 201, and referring to fig. 1-3 of the specification, four groups of corresponding through holes are formed in the load bearing cover 201 and the thickening cover 102, and the assembling and the connecting of the load bearing support 201 and the thickening cover 102 can be realized by using matched bolts and nuts;
The lower nut 3 is sleeved in the thickening cover 102 and the bearing cover 201 through the lower cylindrical sleeve 301, the lower nut 3 and the upper nut 4 are sleeved in the central hexagonal tube 501 through the upper hexagonal tube 303 and the lower hexagonal tube 401, and referring to fig. 10 of the specification, it is noted that the lower end of the central opening of the central hexagonal tube 501 is a hexagonal tube hole corresponding to the upper hexagonal tube 303 and the lower hexagonal tube 401, and the upper end is a cylindrical hole corresponding to the upper cylindrical tube 402, so as to achieve structural anastomosis with the lower nut 3 and the upper nut 4.
The communicating cavity 9 is 匚 -shaped, it should be noted that the opening at the lower end of the communicating cavity 9 is lower than the opening at the upper end, so that the lower cylindrical sleeve 301 positioned in the thickening cover 102 is convenient to press and drive the second guide piston 11 positioned in the opening at the lower end of the communicating cavity 9, and the second guide piston 11 is of a cross structure with the opening at the lower end, so that the second strong spring 13 is conveniently arranged.
The second limiting mechanism is located below the hand lever driving member 5 to provide a supporting function for the hand lever driving member 5.
It should be noted that, the specific model specification of the mounting support 1 and the valve rod 6 needs to be determined by selecting a model according to the actual specification of the device, and the specific model selection calculation method adopts the prior art in the field, so that the description is omitted.
The invention can be used by the following modes of operation:
the lower nut 3 and the upper nut 4 are abutted, the valve rod 6 is sleeved in the lower nut 3 and the upper nut 4 in sequence, the hand lever driving piece 5 is fixedly sleeved on the lower nut 3 and the upper nut 4 through the central hexagonal pipe 501, the lower nut 3 and the upper nut 4 are driven by the hand lever driving piece 5, and finally the lower cylindrical sleeve 301 in the lower nut 3 is sleeved in the thickening cover 102 and the bearing cover 201;
The sealing flange 8 is sleeved in the sealing ring groove 7, the guide ring 14 is sleeved on the top end of the second guide piston 11 through the guide ring groove 15, so that the guide ring groove 15 is sleeved with the damping balls 16 in a rolling mode, the lower cylindrical sleeve 301 extrudes the second guide piston 11 to shrink inwards towards the communication cavity 9 through the guide ring 14, so that the piston guide piece 19 in the right-angle through pipe 17 extends outwards and is sleeved in the limit ring groove 18, and the piston guide piece 19 is in movable sliding contact with the lower cylindrical sleeve 301 through the limit ring groove 18;
Rotating the threaded rod 25 on the bearing bracket 202 to adjust the overall length of the threaded rod 25 and the threaded sleeve 26, wherein the threaded rod 25 fixes the deflection angle of the traction pull rod 23 through the universal joint 24 to fix the position of the guide moving table 21 in the guide long hole 20, so that three guide moving tables 21 in the three groups of second limiting mechanisms are assembled to form an annular structure arranged around the hand lever driving piece 5, and simultaneously, an annular structure limiting groove 27 corresponding to the limiting sliding block 28 is formed to provide an annular guide limiting effect for the limiting sliding block 28 rotating along with the hand lever driving piece 5;
the handle ring 503 is rotated to drive the hand lever driving piece 5, and the second limiting mechanism is utilized to provide a supporting function for the hand lever driving piece 5, so that the lower nut 3 and the upper nut 4 rotate;
The lower nut 3 drives the guide ring 14 to move, so that the damping balls 16 roll in the guide ring grooves 15 and always press the second guide piston 11, and the piston guide piece 19 positioned in the limit ring groove 18 always provides a supporting effect for the lower nut 3;
the lower nut 3 and the upper nut 4 drive the valve rod 6 to move in a telescopic way in the gate valve so as to realize the opening and closing regulation of the gate valve.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a valve double nut hand wheel locking device, includes valve rod (6) and installing support (1) of corresponding gate valve installation valve rod (6) port position, and installing support (1) comprise sealing flange (101) and thickening cover (102), its characterized in that still includes:
The load bearing support (2) is connected with the mounting support (1) through bolts, and the load bearing support (2) is integrally formed by a load bearing cover body (201) and a load bearing support (202);
The valve rod comprises a lower nut (3) and an upper nut (4) for mounting a valve rod (6), wherein the lower nut (3) and the upper nut (4) are arranged from bottom to top, the lower nut (3) is integrally formed by a lower cylindrical sleeve (301), a middle cylindrical sleeve (302) and an upper hexagonal sleeve (303), and the upper nut (4) is integrally formed by a lower hexagonal sleeve (401) and an upper cylindrical sleeve (402);
Three groups of first limiting mechanisms which are distributed at equal intervals in the circumferential direction are arranged through the mounting support (1) and the load support (2), and the first limiting mechanisms are used for sealing and guiding the lower nut (3);
The hand lever driving piece (5), the hand lever driving piece (5) is fixedly sleeved on the lower nut (3) and the upper nut (4), and the hand lever driving piece (5) is integrally formed by a central six-edge pipe (501), a connecting plate (502) and a grip ring (503);
The three groups of second limiting mechanisms are circumferentially distributed at equal intervals, the three groups of second limiting mechanisms are arranged through the load bearing support (2), and the second limiting mechanisms are used for guiding the limiting hand bar driving piece (5).
2. The locking device for the double-nut hand wheel of the valve according to claim 1, wherein the mounting support (1), the load support (2), the lower nut (3), the upper nut (4) and the hand lever driving piece (5) are arranged from bottom to top, and the valve rod (6) is arranged in the gate valve through the mounting support (1), the load support (2), the lower nut (3), the upper nut (4) and the hand lever driving piece (5) with corresponding openings in the center.
3. The valve double-nut hand wheel locking device according to claim 1, wherein the mounting support (1) is assembled and connected with the gate valve through the sealing flange (101), and the loading support (2) and the mounting support (1) are assembled and connected with the thickening cover (102) through the bearing cover body (201);
The lower nut (3) is sleeved in the thickening cover (102) and the bearing cover body (201) through the lower cylindrical sleeve (301), and the lower nut (3) and the upper nut (4) are sleeved in the central hexagonal tube (501) through the upper hexagonal tube (303) and the lower hexagonal tube (401).
4. The valve double nut hand wheel locking device of claim 1, wherein the first limiting mechanism comprises:
The sealing ring groove (7) and a sealing flange (8) sleeved in the sealing ring groove (7), the sealing ring groove (7) is arranged in the inner wall of the thickening cover (102), and the sealing flange (8) is fixedly sleeved on the outer wall of the lower cylindrical sleeve (301);
The communication cavity (9), the communication cavity (9) is opened in the lower cylindrical sleeve (301);
The first guide piston (10) and the second guide piston (11) which is sleeved on the first guide piston (10) in a sliding manner are arranged in the opening at the lower end of the communication cavity (9), and the second guide piston (11) is sleeved in the opening at the lower end of the communication cavity (9) in a sliding manner through the first guide piston (10);
The first powerful spring (12) and the second powerful spring (13), the first powerful spring (12) is fixedly sleeved on one end of the first guide piston (10) positioned in the second guide piston (11), and the second powerful spring (13) is fixedly sleeved on one end of the second guide piston (11) extending out of the lower end of the communication cavity (9);
The guide ring (14) and a guide ring groove (15) of the second guide piston (11) are movably sleeved, the guide ring (14) is integrally connected to the bottom end position of the lower cylindrical sleeve (301), and the guide ring groove (15) is concentrically arranged in the guide ring (14);
the damping ball (16) is sleeved on the top end of the second guide piston (11) in a rolling way, and the damping ball (16) is sleeved in the guide ring groove (15) in a rolling way;
The right-angle through pipe (17) and a limit ring groove (18) corresponding to the upper port of the right-angle through pipe (17), wherein the right-angle through pipe (17) is fixedly connected to the thickening cover (102), the lower port of the right-angle through pipe (17) corresponds to the upper end opening of the communication cavity (9), and the limit ring groove (18) is horizontally arranged on the lower cylindrical sleeve (301);
The piston guide piece (19), piston guide piece (19) slip-on cover is in port on right-angle pipe (17), and the one end that piston guide piece (19) extended outside right-angle pipe (17) slip-on cover is in spacing annular (18).
5. The locking device for the double-nut hand wheel of the valve according to claim 4, wherein the communicating cavity (9) is of a 匚 -shaped structure, and the second guiding piston (11) is of a cross structure with an opening at the lower end.
6. The valve double nut hand wheel locking device of claim 1, wherein the second limiting mechanism comprises:
the guide long hole (20) and the guide moving table (21) are positioned in the guide long hole (20), the guide long hole (20) is horizontally arranged in the upper end of the bearing bracket (202), and the guide moving table (21) is slidably arranged on the bearing bracket (202) through the guide long hole (20);
The device comprises a driven through hole (22) and a traction pull rod (23), wherein the driven through hole (22) is vertically arranged on a guide moving table (21), the traction pull rod (23) is arranged at the lower end position of a bearing bracket (202) through a pin shaft, and the traction pull rod (23) is sleeved in the driven through hole (22) in a sliding manner;
A universal joint (24), wherein the universal joint (24) is fixedly arranged on the traction pull rod (23);
The device comprises a threaded rod (25) and a threaded sleeve (26) which are in threaded connection, wherein the threaded rod (25) is fixedly connected to a universal joint (24), and the threaded sleeve (26) is arranged on a bearing bracket (202) through a pin shaft;
The device comprises a limiting groove (27) and a limiting slide block (28), wherein the limiting groove (27) is horizontally arranged on a guiding moving table (21), the limiting slide block (28) is fixedly arranged on a central six-edge pipe (501), and the limiting slide block (28) is sleeved in the limiting groove (27) in a sliding manner.
7. The valve double nut hand wheel locking device according to claim 6, wherein the second limiting mechanism is located below the hand lever driving member (5).
8. The method of using a valve double nut hand wheel locking device of claim 7, comprising the steps of:
Step S1, abutting the lower nut (3) and the upper nut (4), sleeving a valve rod (6) in the lower nut (3) and the upper nut (4) in sequence, fixedly sleeving a hand rod driving piece (5) on the lower nut (3) and the upper nut (4) through a central six-edge pipe (501), and sleeving a lower cylindrical sleeve (301) in the lower nut (3) in a thickening cover (102) and a bearing cover body (201);
s2, sleeving a sealing flange (8) in a sealing ring groove (7), sleeving a guide ring (14) on the top end of a second guide piston (11) through a guide ring groove (15), enabling the guide ring groove (15) to roll and sleeve damping balls (16), extruding the second guide piston (11) through the guide ring (14) to retract inwards of a communicating cavity (9), enabling a piston guide piece (19) in a right-angle through pipe (17) to extend outwards, and sleeving the piston guide piece in a limiting ring groove (18);
Step S3, rotating a threaded rod (25) on the bearing bracket (202) to adjust the overall length of the threaded rod (25) and a threaded sleeve (26), wherein the threaded rod (25) is used for fixing the deflection angle of a traction pull rod (23) through a universal joint (24) to fix the position of a guide moving table (21) in a guide long hole (20), so that three guide moving tables (21) in three groups of second limiting mechanisms are assembled to form an annular structure arranged around a hand rod driving piece (5), and an annular structure limiting groove (27) corresponding to a limiting sliding block (28) is formed;
Step S4, driving the hand lever driving piece (5) by rotating the grip ring (503), and providing a supporting function for the hand lever driving piece (5) by utilizing a second limiting mechanism so that the lower nut (3) and the upper nut (4) rotate;
s5, the lower nut (3) drives the guide ring (14) to move, so that the damping balls (16) roll in the guide ring groove (15), the second guide piston (11) is always pressed, and a piston guide piece (19) positioned in the limit ring groove (18) always provides a supporting function for the lower nut (3);
And S6, driving the valve rod (6) to stretch out and draw back in the gate valve by the lower nut (3) and the upper nut (4) so as to realize the opening and closing regulation of the gate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410579765.9A CN118149147A (en) | 2024-05-11 | 2024-05-11 | Valve double-nut hand wheel locking device and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410579765.9A CN118149147A (en) | 2024-05-11 | 2024-05-11 | Valve double-nut hand wheel locking device and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118149147A true CN118149147A (en) | 2024-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410579765.9A Pending CN118149147A (en) | 2024-05-11 | 2024-05-11 | Valve double-nut hand wheel locking device and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118149147A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1057932A (en) * | 1964-02-27 | 1967-02-08 | Crane Ltd | Improvements in or relating to fluid control valves |
| JP2008019883A (en) * | 2006-07-10 | 2008-01-31 | Toho Gas Co Ltd | Small-diameter stop valve for extremely low temperature |
| US20180156350A1 (en) * | 2015-06-01 | 2018-06-07 | Aktiebolaget Skf | Valve operator assembly with double screw mechanism |
| CN209278495U (en) * | 2018-11-12 | 2019-08-20 | 成都乘风阀门有限责任公司 | Angie type hyperbaric oxygen air valve |
| CN213628896U (en) * | 2020-10-20 | 2021-07-06 | 浙江中财管道科技股份有限公司 | Stainless steel stop valve |
-
2024
- 2024-05-11 CN CN202410579765.9A patent/CN118149147A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1057932A (en) * | 1964-02-27 | 1967-02-08 | Crane Ltd | Improvements in or relating to fluid control valves |
| JP2008019883A (en) * | 2006-07-10 | 2008-01-31 | Toho Gas Co Ltd | Small-diameter stop valve for extremely low temperature |
| US20180156350A1 (en) * | 2015-06-01 | 2018-06-07 | Aktiebolaget Skf | Valve operator assembly with double screw mechanism |
| CN209278495U (en) * | 2018-11-12 | 2019-08-20 | 成都乘风阀门有限责任公司 | Angie type hyperbaric oxygen air valve |
| CN213628896U (en) * | 2020-10-20 | 2021-07-06 | 浙江中财管道科技股份有限公司 | Stainless steel stop valve |
Non-Patent Citations (1)
| Title |
|---|
| 张建华;王芳;尤广泉;: "闸阀的常见故障分析与改进措施", 阀门, no. 03, 25 June 2009 (2009-06-25), pages 40 - 43 * |
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