CN117697706A - Valve seat rapid assembly tool and use method thereof - Google Patents
Valve seat rapid assembly tool and use method thereof Download PDFInfo
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- CN117697706A CN117697706A CN202311772123.2A CN202311772123A CN117697706A CN 117697706 A CN117697706 A CN 117697706A CN 202311772123 A CN202311772123 A CN 202311772123A CN 117697706 A CN117697706 A CN 117697706A
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- rod
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
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- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention discloses a valve seat rapid assembly fixture and a use method thereof, the valve seat rapid assembly fixture comprises a mounting frame, a movable wheel is fixedly arranged at the bottom end of the mounting frame, a protective fence is fixedly arranged around the mounting frame, a driving mechanism is fixedly arranged in the mounting frame, a lifting mechanism is fixedly arranged at the top of the driving mechanism, a fixing mechanism is arranged at the top of the lifting mechanism, a stepping motor is controlled to rotate so as to drive a screw rod to follow rotation, the screw rod rotates so as to drive a sliding block on the surface to move along the screw rod, the sliding block drives a moving block connected with two ends of a linkage rod to slide on the surface of a guide rail, and when the moving block slides, a first support rod hinged in the interior is driven to approach a second support rod.
Description
Technical Field
The invention relates to the technical field of valve seat assembly tools, in particular to a valve seat rapid assembly tool and a use method thereof.
Background
And the valve inner detachable surface part is used for supporting the valve core at the full closing position and forming a sealing pair. The diameter of the valve seat is the maximum flow diameter of the valve. For example, the valve seat of the butterfly valve is very wide in material and application fields. For example, the pipeline connection in the petroleum exploitation process requires a large number of butterfly valves, and the demand for valve seats is quite large. In the process of assembling the valve seat, elastic sealing material and small actuator thrust are used to obtain bubble tight seal, and compression valve seat sealing stress elastically deforms the material to squeeze into the rough surface of matched metal parts so as to block all leakage paths. Thus, a good fixation of the valve seat is required during the assembly of the seal to ensure the assembly.
The assembly process of the existing valve seat is easy to shake, so that the position needs to be continuously adjusted in the installation process, the installation technology is required to be high, and the installation speed and the installation effect are affected.
Disclosure of Invention
The invention aims to provide a rapid valve seat assembly tool and a use method thereof, which are used for solving the problems that the existing valve seat assembly process proposed by the background technology is easy to shake, so that the position needs to be continuously adjusted in the installation process, the installation technology is required to be higher, and the installation speed and the installation effect are influenced.
In order to achieve the above purpose, the present invention provides the following technical solutions: the quick valve seat assembly fixture comprises a mounting frame, wherein a movable wheel is fixedly arranged at the bottom end of the mounting frame, a protective fence is fixedly arranged around the mounting frame, a driving mechanism is fixedly arranged in the mounting frame, a lifting mechanism is fixedly arranged at the top of the driving mechanism, and a fixing mechanism is arranged at the top of the lifting mechanism;
the driving mechanism comprises two guide rods fixedly mounted inside the mounting frame, guide grooves are formed in the surfaces of the guide rods, a supporting frame is arranged at the top of each guide rod, and two pulleys are mounted in the supporting frame in a rotating mode.
As a preferable scheme of the invention, the top of the support frame is fixedly provided with a driving motor, the output end of the driving motor is fixedly provided with a driving wheel, one side of one pulley is fixedly provided with a driven wheel, the driving wheel is connected with the driven wheel through a belt transmission, the tops of the two guide rods are also provided with an auxiliary frame, the inside of the auxiliary frame is rotatably provided with two auxiliary wheels, and the auxiliary frame is fixedly connected with the top of the support frame through an I-beam.
As a preferable scheme of the invention, the lifting mechanism comprises a base fixedly arranged at the top of an I-beam, a stepping motor is fixedly arranged on one side of the surface of the base, a bearing seat is fixedly arranged in the middle of the surface of the I-beam, guide rails are fixedly arranged on two sides of the surface of the I-beam, a screw rod is rotatably arranged in the bearing seat, the surface of the screw rod is slidably connected with a sliding block, the output end of the stepping motor is fixedly connected with one end of the screw rod, two sides of the sliding block are fixedly connected with a linkage rod, two ends of the linkage rod are fixedly connected with a moving block, and the moving block is slidably connected with the surface of the guide rails.
In order to be used as a preferable scheme of the invention, the inside of the two moving blocks is hinged with a first supporting rod, the other side of the surface of the I-beam is hinged with a second supporting rod, the first supporting rod and the second supporting rod are hinged in an X shape through a hinging rod, the top ends of the first supporting rod and the second supporting rod are hinged with a bearing frame, and the surface of the bearing frame is provided with two groups of sliding grooves.
As a preferable scheme of the invention, the fixing mechanism comprises two sliding frames which are slidably arranged in two groups of sliding grooves, two supporting plates are fixedly arranged at the tops of the sliding frames, fixing screws are connected with the tops of the supporting plates in a threaded manner, one ends of the fixing screws are rotatably provided with fixing blocks, and the other ends of the fixing screws are fixedly provided with regulating wheels.
As a preferable mode of the invention, a locking rod is fixedly arranged on one side of the sliding frame.
As a preferable scheme of the invention, one side of the mounting frame is fixedly provided with a control panel, the driving motor and the stepping motor are electrically connected with the control panel, and the control panel is electrically connected with an external power supply.
The application method of the quick valve seat assembly tool comprises the following steps:
step (A), controlling a stepping motor to rotate so as to drive a screw rod to rotate, driving a sliding block on the surface to move along the screw rod, driving a moving block connected with two ends of a linkage rod to slide on the surface of a guide rail by the sliding block, and driving a first support rod hinged inside to approach a second support rod when the moving block slides;
step (B), after the valve seat is placed at the top of the bearing frame, pushing the sliding frame to slide in the sliding groove according to the size of the valve seat, fixing the sliding frame through the locking rod after adjustment, and driving the fixing screw at the top of the supporting plate through the rotation adjusting wheel to enable the fixing screw to drive the fixing block to move towards the valve seat and fix the fixing block, so that the valve seat is prevented from shaking and falling in the installation and adjustment process;
and (C) after the control panel is connected with an external power supply, controlling the driving mechanism and the lifting mechanism to drive the valve seat to move and adjust towards the installation position, and after the control panel is disconnected with the external power supply, stopping the operation of the whole tool.
Compared with the prior art, the invention has the beneficial effects that:
(1) Through the driving mechanism, the driving motor rotates to drive the driving wheel to rotate, the driving wheel drives the driven wheel to rotate in a following way through the belt, the driven wheel rotates to drive one of the pulleys to rotate, the pulley drives the support frame to move along the guide groove formed in the surface of the guide rod, the support frame moves to drive the auxiliary frame and the internally mounted auxiliary wheel to move in a following way through the I-beam, and accordingly the lifting mechanism mounted at the top of the I-beam moves in the mounting frame, and the valve seat is driven to move and adjust to the mounting position;
(2) Through the elevating system who is equipped with, control step motor rotates and drives the lead screw and follow and rotate, the lead screw rotates the slider that drives the surface and removes along the lead screw, the slider drives the movable block that the trace both ends are connected and slides at the guide rail surface, it is close to second bracing piece department to drive inside articulated first bracing piece when the movable block slides, because the top of first bracing piece and second bracing piece all articulates in the bottom of bearing frame, cooperation articulated second bracing piece is supported the bearing frame and is lifted under the drive of first bracing piece, the bearing frame drives the disk seat that the top was placed and rises to the installation department, be convenient for assemble.
Drawings
FIG. 1 is a schematic diagram of a front view of the present invention;
FIG. 2 is a schematic diagram of a driving mechanism according to the present invention;
FIG. 3 is a schematic view of a lifting mechanism according to the present invention;
fig. 4 is a schematic structural view of a fixing mechanism according to the present invention.
In the figure: 1. a mounting frame; 2. a movable wheel; 3. a guard rail; 4. a driving mechanism; 41. a guide rod; 42. a guide groove; 43. a support frame; 44. a pulley; 45. a driving mechanism; 46. a driving wheel; 47. driven wheel; 48. an auxiliary frame; 481. an auxiliary wheel; 49. an I-beam; 5. a lifting mechanism; 51. a stepping motor; 52. a bearing seat; 53. a guide rail; 54. a screw rod; 541. a slide block; 542. a linkage rod; 543. a moving block; 55. a first support bar; 56. a second support bar; 57. a bearing frame; 58. a chute; 6. a fixing mechanism; 61. a carriage; 62. a support plate; 63. a fixed screw; 64. a fixed block; 65. an adjusting wheel; 66. a locking lever; 7. and a control panel.
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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-4, the present invention provides a technical solution: a valve seat rapid assembly tool and a use method thereof comprise a mounting frame 1, wherein a movable wheel 2 is fixedly arranged at the bottom end of the mounting frame 1, a protective fence 3 is fixedly arranged around the mounting frame 1, a driving mechanism 4 is fixedly arranged in the mounting frame 1, a lifting mechanism 5 is fixedly arranged at the top of the driving mechanism 4, and a fixing mechanism 6 is arranged at the top of the lifting mechanism 5;
the driving mechanism 4 comprises two guide rods 41 fixedly arranged in the mounting frame 1, guide grooves 42 are formed in the surfaces of the guide rods 41, supporting frames 43 are arranged at the tops of the guide rods 41, and two pulleys 44 are rotatably arranged in the supporting frames 43.
In this embodiment: the top of the support frame 43 is fixedly provided with a driving motor 45, the output end of the driving motor 45 is fixedly provided with a driving wheel 46, one side of one pulley 44 is fixedly provided with a driven wheel 47, the driving wheel 46 is connected with the driven wheel 47 through belt transmission, the tops of the two guide rods 41 are also provided with an auxiliary frame 48, two auxiliary wheels 481 are rotatably arranged in the auxiliary frame 48, and the auxiliary frame 48 is fixedly connected with the top of the support frame 43 through an I-beam 49.
The specific use is as follows: the driving motor 45 rotates to drive the driving wheel 46 to rotate along with the driving wheel 46, the driving wheel 46 drives the driven wheel 47 to rotate along with the driving wheel 47 through a belt, the driven wheel 47 rotates to drive one of the pulleys 44 to rotate, the pulley 44 drives the supporting frame 43 to move along the guide groove 42 formed in the surface of the guide rod 41, the supporting frame 43 moves to drive the auxiliary frame 48 and the auxiliary wheel 481 which are internally installed to move along with the I-beam 49, and accordingly the lifting mechanism 5 installed at the top of the I-beam 49 moves in the installation frame 1, and the valve seat is driven to move and adjust to the installation position.
In this embodiment: the lifting mechanism 5 comprises a base fixedly arranged at the top of the I-beam 49, a stepping motor 51 is fixedly arranged on one side of the surface of the base, a bearing seat 52 is fixedly arranged in the middle of the surface of the I-beam 49, guide rails 53 are fixedly arranged on two sides of the surface of the I-beam 49, a screw rod 54 is rotatably arranged in the bearing seat 52, a sliding block 541 is slidably connected to the surface of the screw rod 54, the output end of the stepping motor 51 is fixedly connected with one end of the screw rod 54, two sides of the sliding block 541 are fixedly connected with a linkage rod 542, two ends of the linkage rod 542 are fixedly connected with movable blocks 543, the movable blocks 543 are slidably connected to the surface of the guide rails 53, a first support rod 55 is hinged to the inner side of the two movable blocks 543, a second support rod 56 is hinged to the other side of the surface of the I-beam 49, a bearing frame 57 is hinged to the top ends of the first support rod 55 and the second support rod 56 through a hinging rod in an X shape, and two groups of sliding grooves 58 are formed in the surface of the bearing frame 57.
The specific use is as follows: the stepping motor 51 is controlled to rotate to drive the screw rod 54 to rotate, the screw rod 54 rotates to drive the sliding block 541 on the surface to move along the screw rod 54, the sliding block 541 drives the moving block 543 connected with two ends of the linkage rod 542 to slide on the surface of the guide rail 53, the moving block 543 drives the first support rod 55 hinged inside to approach the second support rod 56 when sliding, the top ends of the first support rod 55 and the second support rod 56 are hinged at the bottom of the bearing frame 57, the bearing frame 57 is supported and lifted by the second support rod 56 matched with the hinge under the driving of the first support rod 55, and the bearing frame 57 drives the valve seat placed at the top to be lifted to the installation position, so that the valve seat is convenient to assemble.
In this embodiment: the fixing mechanism 6 comprises two sliding frames 61 which are slidably arranged in the two groups of sliding grooves 58, two supporting plates 62 are fixedly arranged at the tops of the sliding frames 61, a fixing screw 63 is connected with the tops of the supporting plates 62 in a threaded mode, a fixing block 64 is rotatably arranged at one end of the fixing screw 63, an adjusting wheel 65 is fixedly arranged at the other end of the fixing screw 63, and a locking rod 66 is fixedly arranged at one side of the sliding frames 61.
The specific use is as follows: when the valve seat is placed at the top of the bearing frame 57, the sliding frame 61 is pushed to slide in the sliding groove 58 according to the size of the valve seat, the sliding frame 61 is fixed through the locking rod 66 after adjustment, the fixing screw 63 at the top of the supporting plate 62 is driven by the rotating adjusting wheel 65, and the fixing screw 63 drives the fixing block 64 to move towards the valve seat and fix the valve seat, so that the valve seat is prevented from shaking and falling in the installation and adjustment process.
In this embodiment: one side of the mounting frame 1 is fixedly provided with a control panel 7, the driving motor 45 and the stepping motor 51 are electrically connected with the control panel 7, and the control panel 7 is electrically connected with an external power supply.
The specific use is as follows: when the control panel 7 is connected with an external power supply, the control driving mechanism 4 and the lifting mechanism 5 drive the valve seat to move and adjust to the installation position, and when the control panel 7 is disconnected with the external power supply, the equipment stops running.
The application method of the quick valve seat assembly tool comprises the following steps:
step (A), controlling a stepping motor 51 to rotate so as to drive a screw rod 54 to rotate, driving a sliding block 541 on the surface to move along the screw rod 54 by the rotation of the screw rod 54, driving a moving block 543 connected with two ends of a linkage rod 542 to slide on the surface of a guide rail 53, and driving a first support rod 55 hinged inside to approach a second support rod 56 when the moving block 543 slides, wherein the top ends of the first support rod 55 and the second support rod 56 are hinged at the bottom of a bearing frame 57, and the bearing frame 57 is supported and lifted by the second support rod 56 matched with the hinge under the driving of the first support rod 55, so that a valve seat placed at the top is driven by the bearing frame 57 to be lifted to a mounting position, and the valve seat is convenient to assemble;
step (B), when the valve seat is placed on the top of the bearing frame 57, pushing the sliding frame 61 to slide in the sliding groove 58 according to the size of the valve seat, fixing the sliding frame 61 through the locking rod 66 after adjustment, and driving the fixing screw 63 on the top of the supporting plate 62 through the rotation adjusting wheel 65, so that the fixing screw 63 drives the fixing block 64 to move towards the valve seat and fix the valve seat, and preventing the valve seat from shaking and falling in the installation and adjustment process;
and (C) after the control panel 7 is connected with an external power supply, the control driving mechanism 4 and the lifting mechanism 5 drive the valve seat to move and adjust towards the installation position, and after the control panel 7 is disconnected with the external power supply, the whole tool stops running.
In summary, according to the rapid valve seat assembly tool and the use method thereof, the driving mechanism is arranged, the driving motor rotates to drive the driving wheel to rotate in a following way, the driving wheel drives the driven wheel to rotate in a following way through the belt, the driven wheel rotates to drive one of the pulleys, the pulley drives the support frame to move along the guide groove formed in the surface of the guide rod, the support frame moves to drive the auxiliary frame and the auxiliary wheel arranged in the support frame to move in a following way through the I-beam, and therefore the lifting mechanism arranged at the top of the I-beam moves in the installation frame, and the valve seat is driven to move and adjust to the installation position; through the elevating system who is equipped with, control step motor rotates and drives the lead screw and follow and rotate, the lead screw rotates the slider that drives the surface and removes along the lead screw, the slider drives the movable block that the trace both ends are connected and slides at the guide rail surface, it is close to second bracing piece department to drive inside articulated first bracing piece when the movable block slides, because the top of first bracing piece and second bracing piece all articulates in the bottom of bearing frame, cooperation articulated second bracing piece is supported the bearing frame and is lifted under the drive of first bracing piece, the bearing frame drives the disk seat that the top was placed and rises to the installation department, be convenient for assemble.
Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features thereof, and any modifications, equivalent substitutions, improvements and the like within the spirit and principles of the present invention should be included in the scope of the present invention.
The specific use is as follows: the driving motor 45 rotates to drive the driving wheel 46 to rotate along with the driving wheel 46, the driving wheel 46 drives the driven wheel 47 to rotate along with the driving wheel 47 through a belt, the driven wheel 47 rotates to drive one of the pulleys 44 to rotate, the pulley 44 drives the supporting frame 43 to move along the guide groove 42 formed in the surface of the guide rod 41, the supporting frame 43 moves to drive the auxiliary frame 48 and the auxiliary wheel 481 which are internally installed to move along with the I-beam 49, and accordingly the lifting mechanism 5 installed at the top of the I-beam 49 moves in the installation frame 1, and the valve seat is driven to move and adjust to the installation position.
Claims (8)
1. Valve seat quick assembly tooling, including mounting bracket (1), its characterized in that: the movable wheel (2) is fixedly arranged at the bottom end of the mounting frame (1), the protective guard (3) is fixedly arranged around the mounting frame (1), the driving mechanism (4) is fixedly arranged in the mounting frame (1), the lifting mechanism (5) is fixedly arranged at the top of the driving mechanism (4), and the fixing mechanism (6) is arranged at the top of the lifting mechanism (5);
the driving mechanism (4) comprises two guide rods (41) fixedly installed inside the installation frame (1), guide grooves (42) are formed in the surfaces of the guide rods (41), supporting frames (43) are arranged at the tops of the guide rods (41), and two pulleys (44) are installed in the supporting frames (43) in a rotating mode.
2. The valve seat quick assembly tooling according to claim 1, wherein: the top fixed mounting of support frame (43) has driving motor (45) output fixed mounting has action wheel (46), one of them one side fixed mounting of pulley (44) has from driving wheel (47), pass through belt transmission between action wheel (46) and from driving wheel (47) and be connected, two still be equipped with auxiliary frame (48) at the top of guide bar (41), two auxiliary wheels (481) are installed in the internal rotation of auxiliary frame (48), I-beam (49) fixed connection are passed through at the top of auxiliary frame (48) and support frame (43).
3. The valve seat quick assembly tooling according to claim 2, wherein: elevating system (5) are including the base at I-beam (49) top of fixed mounting, surface one side fixed mounting of base has step motor (51), I-beam (49) surface middle part fixed mounting has bearing frame (52), I-beam (49) surface both sides side all fixed mounting has guide rail (53), the inside rotation of bearing frame (52) is installed lead screw (54), the surface sliding connection of lead screw (54) has slider (541), the output of step motor (51) and the one end fixed connection of lead screw (54), the both sides of slider (541) all fixedly connected with interlock pole (542), the both ends of interlock pole (542) are all fixedly connected with movable block (543), movable block (543) sliding connection is on guide rail (53) surface.
4. A valve seat quick assembly tooling as set forth in claim 3, wherein: the inside of two movable blocks (543) articulates there is first bracing piece (55), I-beam (49) surface opposite side articulates there is second bracing piece (56), first bracing piece (55) and second bracing piece (56) are X form articulated through articulated lever, bearing frame (57) are installed in the articulated top of first bracing piece (55) and second bracing piece (56), two sets of spouts (58) have been seted up on the surface of bearing frame (57).
5. The valve seat quick assembly tooling according to claim 4, wherein: the fixing mechanism (6) comprises two sliding frames (61) which are slidably arranged in two groups of sliding grooves (58), two supporting plates (62) are fixedly arranged at the tops of the sliding frames (61), fixing screws (63) are connected with the tops of the supporting plates (62) in a threaded mode, fixing blocks (64) are rotatably arranged at one ends of the fixing screws (63), and adjusting wheels (65) are fixedly arranged at the other ends of the fixing screws (63).
6. The valve seat quick assembly tooling according to claim 5, wherein: a locking rod (66) is fixedly arranged on one side of the sliding frame (61).
7. A valve seat quick assembly tooling as set forth in claim 3, wherein: one side of the mounting frame (1) is fixedly provided with a control panel (7), the driving motor (45) and the stepping motor (51) are electrically connected with the control panel (7), and the control panel (7) is electrically connected with an external power supply.
8. Use method of a valve seat quick assembly tooling according to any one of claims 1-7, characterized in that: the method comprises the following steps:
step (A), a step motor (51) is controlled to rotate so as to drive a screw rod (54) to rotate, a sliding block (541) on the surface is driven to move along the screw rod (54) by the rotation of the screw rod (54), a sliding block (543) connected with two ends of a linkage rod (542) is driven by the sliding block (541) to slide on the surface of a guide rail (53), a first support rod (55) hinged inside is driven to approach a second support rod (56) during sliding of the sliding block (543), the top ends of the first support rod (55) and the second support rod (56) are both hinged at the bottom of a bearing frame (57), the bearing frame (57) is supported and lifted by the second support rod (56) matched with the hinge under the driving of the first support rod (55), and a valve seat placed at the top is driven by the bearing frame (57) to rise to a mounting position so that the valve seat is convenient to assemble;
step (B), after the valve seat is placed on the top of the bearing frame (57), pushing the sliding frame (61) to slide in the sliding groove (58) according to the size of the valve seat, fixing the sliding frame (61) through the locking rod (66) after adjustment, driving the fixing screw (63) on the top of the supporting plate (62) through rotating the adjusting wheel (65), enabling the fixing screw (63) to drive the fixing block (64) to move towards the valve seat and fix the valve seat, and preventing the valve seat from shaking and falling in the installation and adjustment process;
and (C) after the control panel (7) is connected with an external power supply, the driving mechanism (4) and the lifting mechanism (5) are controlled to drive the valve seat to move and adjust towards the installation position, and after the control panel (7) is disconnected with the external power supply, the whole tool stops running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311772123.2A CN117697706A (en) | 2023-12-21 | 2023-12-21 | Valve seat rapid assembly tool and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311772123.2A CN117697706A (en) | 2023-12-21 | 2023-12-21 | Valve seat rapid assembly tool and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117697706A true CN117697706A (en) | 2024-03-15 |
Family
ID=90151362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311772123.2A Pending CN117697706A (en) | 2023-12-21 | 2023-12-21 | Valve seat rapid assembly tool and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117697706A (en) |
-
2023
- 2023-12-21 CN CN202311772123.2A patent/CN117697706A/en active Pending
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