CN219344938U - Automatic locking and sealing device for pump body - Google Patents
Automatic locking and sealing device for pump body Download PDFInfo
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- CN219344938U CN219344938U CN202320812529.8U CN202320812529U CN219344938U CN 219344938 U CN219344938 U CN 219344938U CN 202320812529 U CN202320812529 U CN 202320812529U CN 219344938 U CN219344938 U CN 219344938U
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- 238000007789 sealing Methods 0.000 title claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000002474 experimental method Methods 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model relates to the technical field of water pumps, in particular to an automatic locking and sealing device of a pump body, which comprises a pump body flange, wherein an automatic locking and sealing mechanism is arranged on the pump body flange and comprises a connecting plug, a locking draw hook, a first piston, a spring, a limiting retainer ring, a second piston, a top plate and a tightening screw rod, wherein the connecting plug is in sealing connection with the pump body flange, the locking draw hook sequentially penetrates through the connecting plug and the pump body flange to be in limiting connection with the pump body flange, a first piston connecting hole, an oil hole and a second piston connecting hole are formed in the middle of the connecting plug, the spring and the first piston are arranged in the first piston connecting hole, a first pressure cavity is formed at the rear end of the first piston, a second piston is arranged in the second piston connecting hole, pressure oil is arranged in the pressure cavity, the rear end of the top plate is in abutting and limiting with the locking draw hook, and the front end of the tightening screw rod is in abutting and against the second piston.
Description
Technical Field
The utility model relates to the technical field of water pumps, in particular to an automatic locking and sealing device for a pump body.
Background
As is well known, for the processing of cast parts of pump bodies and pump covers, due to the processing reasons, casting defects such as shrinkage cavities, shrinkage porosity, sand holes, cracks and the like can be generated in the individual cast parts, so that the pump bodies are scrapped due to fluid leakage in the use process, and therefore, in the production process, pressure bearing experimental procedures are required to be carried out on each pump body so as to ensure the pressure bearing capacity of the pump bodies.
In the existing pressure-bearing experimental procedure, a pump body flange and a flange plug are fastened by stud bolts according to a certain sequence so as to ensure the tightness of pressure-bearing members such as a pump body, then, the pump body is flushed with water, along with the increase of the pressure in the pump body, the pressure in the pump body can prop against the inner wall of the pump body and the flange plug, in order to avoid the overflow of high-pressure water from the gap between the pump body flange and the flange plug, operators usually screw up each stud bolt with the maximum force, and the substantial deficiency of the experimental procedure is as follows: even if the stud bolts are locked, partial water flows still flow out from the gaps between the pump body flange and the flange plugs along with the increase of water pressure, so that the pressure-bearing experiment is affected, even the pressure-bearing experiment cannot be completed, the stud bolts are required to be fastened for many times, and time and labor are wasted; secondly, when the pressure bearing experiment is finished, an operator needs to disassemble each stud bolt, so that the labor intensity of disassembly is high, and the working efficiency is low; thirdly, because the pressure-bearing experiment is always operated on the workbench, the workbench is soaked by water and is wet and slippery, if the force is not applied properly, the workpiece can slide on the workbench and go out, and then unnecessary work injury risks are brought.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provide the pump body automatic locking and sealing device which has the advantages of ingenious structure, convenience in disassembly and assembly, good sealing performance, tight connection, high safety, time saving and labor saving.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a pump body automatic locking sealing device, includes pump body flange, its characterized in that: the automatic locking sealing mechanism comprises a connecting plug, a locking drag hook, a first piston, a spring, a limiting retainer ring, a second piston, a top plate and a pushing screw rod, wherein the connecting plug is arranged on one side of the pump body flange, drag hook limiting holes are formed in the pump body flange at intervals, drag hook connecting holes are formed in the connecting plug at intervals, the locking drag hook sequentially penetrates through the drag hook connecting holes and the limiting holes, the front end of the locking drag hook hooks the pump body flange to be in limiting connection with the pump body flange, the locking drag hook is clamped and connected with the connecting plug in a sliding mode, the outer diameter of the rear portion of the locking drag hook is larger than the inner diameter of the drag hook connecting hole so as to facilitate guiding and limiting the connecting plug, a first piston connecting hole, an oil hole and a second piston connecting hole are sequentially formed in the middle of the connecting plug from front to the rear, the first piston connecting hole is communicated with the second piston connecting hole through the oil hole, the spring and the first piston are arranged in the first piston connecting hole, the inner diameter of the first piston connecting hole is larger than the inner diameter of the oil hole, the inner diameter of the first piston connecting hole is smaller than the inner diameter of the second piston connecting hole, the outer diameter of the first piston connecting hole is connected with the first piston connecting hole and the second piston through the inner wall of the piston connecting plug, the first piston end is fixedly connected with the inner wall of the piston cavity, the piston end of the piston is formed in the piston cavity is connected with the piston end of the piston through the piston connecting plug, and the piston end of the piston connecting plug, and the piston end is connected with the piston end of the piston plug in the piston cavity, and the piston end is fixedly connected with the piston end cavity, the locking draw hook is arranged at the rear of the second piston, the top plate is arranged in the locking draw hook, the rear end of the top plate abuts against the locking draw hook, the locking draw hook is locked and fixed with the pump body flange, a threaded hole is formed in the middle of the top plate, a tightening screw is arranged on the top plate, the tightening screw is in threaded connection with the top plate, the front end of the tightening screw penetrates through the top plate to abut against the rear end of the second piston, the front end of the second piston abuts against the connecting plug, the connecting plug is in extrusion sealing connection with the pump body flange, so that the tightening screw is rotated to drive the top plate to move backwards, the pump body flange is tightly hooked by the locking draw hook, meanwhile, the top plate moves backwards to abut against the rear end of the locking draw hook to limit, the front end of the tightening draw hook abuts against the second piston, the connecting plug abuts against the connecting plug, the connecting plug is tightly contacted with the pump body flange, and the sealing performance is good.
The locking drag hook comprises a hook plate section, a plug connecting section and a top plate limiting section from front to back, wherein the front end of the plug connecting section is fixedly connected with the hook plate section, the rear end of the plug connecting section is fixedly connected with the top plate limiting section, the hook plate section passes through a drag hook limiting hole and abuts against the front end face of a pump body flange to be limited and fixed, the outer diameter of the plug connecting section gradually increases from front to back, the outer diameter of the rear end of the plug connecting section is larger than the inner diameter of the drag hook connecting hole, the plug connecting section passes through the drag hook connecting hole, the plug connecting section clamps and connects plugs and is connected with the connecting plugs in a sliding mode, the outer diameter of the top plate limiting section gradually increases from front to back, the adjacent top plate limiting sections form a top plate limiting space, and the caliber of the rear end of the top plate limiting space is smaller than the outer diameter of the top plate so as to be beneficial to limiting the top plate.
The rear end of the top plate limiting section is provided with the limiting baffle table, the top plate limiting section is fixedly connected with the limiting baffle table, and the distance between the limiting baffle table and the center of the top plate is smaller than the radius of the top plate, so that the top plate is further limited by the limiting baffle table, and the top plate is prevented from sliding out of the locking drag hook.
According to the utility model, the sealing ring is fixedly arranged at the front end of the connecting plug, and the connecting plug is in sealing connection with the pump body flange, so that the tightness between the connecting plug and the pump body flange is maintained.
The diameter length of the second piston is three times of that of the first piston, so that the thrust of the second piston to the connecting plug is greatly increased.
Due to the adoption of the structure, the utility model has the advantages of ingenious structure, convenient disassembly and assembly, good sealing performance, tight connection, high safety, time and labor saving and the like.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Reference numerals: the pump body flange 1, the automatic locking sealing mechanism 2, the connection plug 3, the locking drag hook 4, the first piston 5, the spring 6, the limit retainer 7, the second piston 8, the top plate 9, the jacking screw 10, the drag hook connecting hole 11, the first piston connecting hole 12, the oil hole 13, the second piston connecting hole 14, the first pressure cavity 15, the second pressure cavity 16, the hook plate section 17, the plug connecting section 18, the top plate limit section 19, the limit retainer 20, the sealing ring 21 and the pump body 22.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
The utility model provides a pump body automatic locking sealing device, includes pump body flange 1, its characterized in that: the pump body flange 1 is provided with an automatic locking and sealing mechanism 2, the automatic locking and sealing mechanism 2 comprises a connecting plug 3, a locking draw hook 4, a first piston 5, a spring 6, a limiting retainer ring 7, a second piston 8, a top plate 9 and a jacking screw 10, one side of the pump body flange 1 is provided with the connecting plug 3, draw hook limiting holes are arranged on the pump body flange 1 at intervals, draw hook connecting holes 11 are arranged on the connecting plug 3 at intervals, the locking draw hook 4 sequentially passes through the draw hook connecting holes 11 and the draw hook limiting holes, the front end of the locking draw hook 4 hooks the pump body flange 1 to be in limiting connection with the pump body flange 1, the inner side of the locking draw hook 4 clamps the connecting plug 3 and is in sliding connection with the connecting plug 3, the outer diameter of the rear part of the locking draw hook 4 is larger than the inner diameter of the draw hook connecting hole 11 so as to facilitate guiding and limiting the connecting plug, a first piston connecting hole 12, an oil hole 13 and a second piston connecting hole 14 are sequentially arranged in the middle of the connecting plug 3 from front to rear, the first piston connecting hole 12 is communicated with the second piston connecting hole 14 through the oil hole 13, the spring 6 and the first piston 5 are arranged in the first piston connecting hole 12, the inner diameter of the first piston connecting hole 12 is larger than that of the oil hole 13, the inner diameter of the first piston connecting hole 12 is smaller than that of the second piston connecting hole 14, the first piston 5 is in sliding sealing connection with the inner wall of the first piston connecting hole 12, the front end of the first piston 5 is limited by the limiting retainer ring 7, the rear end of the first piston 5 abuts against the spring 6, the first piston connecting hole 12 at the rear end of the first piston 5 forms a first pressure cavity 15, the limiting retainer ring 7 is fixedly connected with the connecting plug 3, the rear end of the spring 6 abuts against the inner wall at the rear end of the first piston connecting hole 12, the second piston 8 is arranged in the second piston connecting hole 14, the second piston 8 is slidably connected with the inner wall of the second piston connecting hole 14, the second piston connecting hole 14 at the front end of the second piston 8 forms a second pressure cavity 16, pressure oil is arranged in the first pressure cavity 15 and the second pressure cavity 16, a top plate 9 is arranged at the rear of the second piston 8, the top plate 9 is arranged in the locking drag hook 4, the rear end of the top plate 9 abuts against the locking drag hook 4, the top plate 9, the locking drag hook 4 and the pump body flange 1 are fixed in a limiting manner, a threaded hole is formed in the middle of the top plate 9, a tightening screw 10 is arranged on the top plate 9, the tightening screw 10 is in threaded connection with the top plate 9, the front end of the tightening screw 10 abuts against the rear end of the second piston 8 through the top plate 9, the front end of the second piston 8 abuts against the connecting plug 3, the connecting plug 3 is in extrusion sealing connection with the pump body flange 1, so that the tightening screw is rotated, the top plate is driven to move backwards, the locking drag hook flange is enabled to abut against the locking rear end of the locking drag hook, the locking drag hook is enabled to tightly contact with the second piston plug, and the piston plug abuts against the second plug is enabled to be in tight contact with the pump body flange.
According to the locking draw hook 4, a hook plate section 17, a plug connecting section 18 and a top plate limiting section 19 are arranged from front to back, the front end of the plug connecting section 18 is fixedly connected with the hook plate section 17, the rear end of the plug connecting section 18 is fixedly connected with the top plate limiting section 19, the hook plate section 17 passes through a draw hook limiting hole to abut against the front end face of the pump body flange 1 and is limited and fixed, the outer diameter of the plug connecting section 18 gradually increases from front to back, the outer diameter of the rear end of the plug connecting section 18 is larger than the inner diameter of the draw hook connecting hole 11, the plug connecting section 18 passes through the draw hook connecting hole 11, the plug connecting section 18 clamps the connecting plug 3 and is connected with the connecting plug 3 in a sliding mode, the outer diameter of the top plate limiting section 19 gradually increases from front to back, a top plate limiting space is formed by the adjacent top plate limiting section 19, and the caliber of the rear end of the top plate limiting space is smaller than the outer diameter of the top plate 9 so as to be beneficial to limiting the top plate.
The rear end of the top plate limiting section 19 is provided with the limiting baffle 20, the top plate limiting section 19 is fixedly connected with the limiting baffle 20, and the distance from the limiting baffle 20 to the center of the top plate 9 is smaller than the radius of the top plate 9, so that the top plate is further limited by the limiting baffle, and the top plate is prevented from sliding out of the locking drag hook.
According to the utility model, the sealing ring 21 is fixedly arranged at the front end of the connecting plug 3, and the connecting plug 3 is in sealing connection with the pump body flange 1, so that the tightness between the connecting plug and the pump body flange is maintained.
The diameter length of the second piston 8 is three times that of the first piston 5, so that the thrust of the second piston to the connecting plug is greatly increased.
As shown in fig. 1, the pump body flange 1 is in front, the connecting plug 3 is arranged behind the pump body flange at intervals, the connecting plug 3 is provided with draw hook limiting holes 11 at intervals, the draw hook connecting holes 11 are in one-to-one correspondence with the draw hook limiting holes, the distance from each draw hook connecting hole 11 to the center of the connecting plug 3 is equal, namely, the draw hook connecting holes 11 are circumferentially distributed, three or four draw hook connecting holes 11 can be arranged, the locking draw hook 4 sequentially passes through the draw hook connecting holes 11 and then passes through the draw hook limiting holes to hook the front side surface of the pump body flange 1, all the locking draw hooks 4 encircle and clamp the connecting plug 3, the connecting plug 3 is guided to move forwards and backwards, meanwhile, the connecting plug 3 is kept on a plug connecting section 18 of the locking draw hook 4 all the time, the rear end of the locking draw hook 4 is limited by a top plate 9, as shown in fig. 1, a plug connecting section 19 of the locking draw hook 4 just abuts against the top plate 9, the top plate 9 moves backwards, the locking draw hook 4 is driven to move backwards, the front end face of the pump body flange 1 is hooked by the hook plate section 17 at the front end of the locking draw hook 4, the hook plate section 17 is eccentrically arranged, the front end of the locking draw hook 4 can be tightly attached to the pump body flange 1, no gap is formed between the front end of the locking draw hook 4 and the pump body flange 1, the rear end of the locking draw hook 4 is limited and fixed by the top plate 9, the locking draw hook 4, the connecting plug 3 and the pump body flange 1 are limited and fixed by the top plate 9, the jacking screw 10 passes through the top plate 9 to prop against the second piston 8, the second piston 8 props against the connecting plug 3 and abuts against the pump body flange 1, the sealing ring 21 is arranged at the front end of the connecting plug 3, the connecting plug 3 extrudes the sealing ring 21 to be in sealing connection with the pump body flange 1, in this embodiment, the ratio of the thrust of the second piston 8 to the thrust of the first piston 5 is equal to the ratio of the square of the radius of the second piston 8 to the square of the first piston 5, the diameter of the first piston 5 is three times that of the second piston 8, that is to say, the thrust of the second piston 8 is nine times that of the first piston 5, therefore, it can be seen that in the bearing experiment, the pressure oil flowing into the second pressure cavity 16 acts to push the second piston 8 to move backwards, the second piston 8 is limited by the fact that the pushing screw cannot move backwards, the second piston 8 acts against the pressure oil, the pressure oil drives the connecting plug 3 to move forwards to press the pump body flange 1 through the sealing ring 21, the thrust of the second piston 8 is amplified, and the thrust exerted on the connecting plug 3 is always greater than the pressure in the pump body 22, so that the smooth running of the bearing experiment can be ensured, and when the bearing experiment is used, the automatic locking sealing mechanism 2 is assembled on the pump body flange 1, and then the bearing experiment is carried out, specifically:
the first step: taking a connecting plug 3, installing a sealing ring 21 on the front end surface of the connecting plug 3, installing pressure oil in a first piston connecting hole 12 of the connecting plug 3, installing a spring 6, installing a first piston 5 in the first piston connecting hole 12, sealing and sliding connecting the first piston 5 with the first piston connecting hole 12, forming a first pressure cavity 15 by the first piston connecting hole 12 at the rear end of the first piston 5, installing a limiting retainer ring 7 on the front end surface of the first piston connecting hole 12, limiting the first piston 5 in the first piston connecting hole 12, installing a second piston 8 in a second piston connecting hole 14 at the rear end of the connecting plug 3, wherein the outer diameter of the second piston 8 is larger than the outer diameter of the first piston 5, sealing and sliding connecting the second piston 8 with the second piston connecting hole 14, forming a second pressure cavity 16 by the second piston connecting hole 14 at the front end of the second piston 8, and communicating the second pressure cavity 16 with the first pressure cavity 15 through an oil hole 13;
and a second step of: taking a locking draw hook 4, wherein the locking draw hook 4 passes through a draw hook connecting hole 11 on the connecting plug 3 and then passes through a draw hook limiting hole of the pump body flange 1 to hook the front end surface of the pump body flange 1, and the locking draw hooks 4 are arranged at intervals to surround and clamp the connecting plug 3;
and a third step of: taking a top plate 9 and a jacking screw rod 10, enabling the jacking screw rod 10 to penetrate through the top plate 9 and be in threaded connection with the top plate 9, and putting the top plate 9 and the jacking screw rod 10 into the locking drag hook 4 from the rear of the connecting plug 3;
fourth step: rotating the jacking screw rod 10, wherein the front end of the jacking screw rod 10 is propped against the second piston 8, the front end of the second piston 8 is propped against the connecting plug 3, the connecting plug 3 is in extrusion sealing with the pump body flange 1, continuing to rotate the jacking screw rod 10, the top plate 9 moves backwards axially, the top plate 9 moves backwards to abut against the locking drag hook 4, and moves backwards with the locking drag hook 4 until the front end of the locking drag hook 4 hooks the front end face of the pump body flange 1, then continuing to rotate the jacking screw rod 10, the front end of the locking drag hook 4 is tightly contacted with the pump body flange 1 without gaps, and the outer side of the top plate 9 is limited by the rear end of the locking drag hook 4 and cannot move backwards any more;
fifth step: and (3) starting a bearing experiment: flushing the pump body 22, increasing the pressure in the pump body 22 along with the flushing, when the pressure in the pump body 22 is greater than the pressure of the spring 6 in the first pressure cavity 15, moving the first piston 5 backwards, pushing pressure oil to enter the second pressure cavity 16 from the first pressure cavity 15 through the oil hole 13, causing the second piston 8 to move backwards, connecting the plug 3 to move forwards, limiting the rear end of the second piston 8 with the jacking screw 10, abutting the top plate 9 with the locking drag hook 4 to limit and not moving backwards, and connecting the plug 3 to move forwards to press the sealing ring 21 to be in sealing connection with the pump body flange 1;
sixth step: after the pressure-bearing experiment is finished, the pump body 22 is depressurized, the first piston 5 moves forwards under the action of the resilience force of the spring 6 along with the pressure reduction of the pump body 22, the pressure oil in the second pressure cavity 16 flows back to the first pressure cavity 15 through the oil hole 13, the second piston 8 moves forwards along with the pressure reduction, the jacking screw 10 is rotated, the top plate 9 moves forwards, the top plate 9 is separated from the locking drag hook 4, the axis of the locking drag hook 4 is adjusted to coincide with the axis of the drag hook connecting hole 11, the front end of the locking drag hook 4 is separated from the pump body flange 1, the locking drag hook 4 is pulled out backwards to be taken down, all the locking drag hooks 4 are taken down accordingly, and then the top plate 9 and the connecting plug 3 are taken down, so that the pressure-bearing experiment of the pump body 22 is finished; the pump body 22 is provided with a water inlet and a water outlet, the water inlet is pressurized, the water outlet is discharged and depressurized, the utility model has the advantages of ingenious structure, convenient disassembly and assembly, good sealing performance, no water seepage or water outflow and high safety.
Due to the adoption of the structure, the utility model has the advantages of ingenious structure, convenient disassembly and assembly, good sealing performance, tight connection, high safety, time and labor saving and the like.
Claims (5)
1. The utility model provides a pump body automatic locking sealing device, includes pump body flange, its characterized in that: the pump body flange is provided with an automatic locking sealing mechanism, the automatic locking sealing mechanism comprises a connecting plug, a locking drag hook, a first piston, a spring, a limiting retainer ring, a second piston, a top plate and a pushing screw rod, one side of the pump body flange is provided with the connecting plug, the pump body flange is provided with a drag hook limiting hole at intervals, the connecting plug is provided with a drag hook connecting hole at intervals, the locking drag hook sequentially penetrates through the drag hook connecting hole and the drag hook limiting hole, the front end of the locking drag hook hooks the pump body flange to be in limiting connection with the pump body flange, the locking drag hook is clamped and connected with the connecting plug in a sliding manner, the outer diameter of the rear part of the locking drag hook is larger than the inner diameter of the drag hook connecting hole, a first piston connecting hole, an oil hole and a second piston connecting hole are sequentially formed in the middle of the connecting plug from front to the rear, the first piston connecting hole is communicated with the second piston connecting hole through the oil hole, the spring and the first piston connecting hole are arranged in the first piston connecting hole, the inner diameter of the first piston connecting hole is larger than the inner diameter of the oil hole, the inner diameter of the first piston connecting hole is smaller than the inner diameter of the second piston connecting hole, the first piston connecting hole is in the sliding manner against the inner wall of the first piston connecting hole and the second piston end of the piston is formed against the inner wall of the second piston connecting plug, the first piston end is fixedly connected with the inner wall of the piston cavity, the piston end of the piston connecting plug is connected with the piston through the piston end of the piston, and the piston end of the piston connecting plug is fixedly connected with the piston cavity, the second piston rear is equipped with the roof, the roof is arranged in the locking drag hook, and the roof rear end is leaned on with the locking drag hook, locks locking drag hook and pump body flange fixedly, be equipped with the screw hole in the middle of the roof, be equipped with the tight screw rod in top on the roof, tight screw rod in top and roof threaded connection, tight screw rod front end in top passes the roof and leans on with the second piston rear end in a propping way, and the second piston front end leans on with connecting plug, will connect plug and pump body flange extrusion sealing connection.
2. The pump body automatic locking and sealing device according to claim 1, wherein: the locking drag hook comprises a hook plate section, a plug connecting section and a top plate limiting section from front to back, wherein the front end of the plug connecting section is fixedly connected with the hook plate section, the rear end of the plug connecting section is fixedly connected with the top plate limiting section, the hook plate section passes through a drag hook limiting hole and abuts against the front end face of the pump body flange to be limited and fixed, the outer diameter of the plug connecting section is gradually increased from front to back, the outer diameter of the rear end of the plug connecting section is larger than the inner diameter of the drag hook connecting hole, the plug connecting section passes through the drag hook connecting hole, the plug connecting section clamps and connects the plug and is connected with the plug in a sliding mode, the outer diameter of the top plate limiting section is gradually increased from front to back, the adjacent top plate limiting section forms a top plate limiting space, and the caliber of the rear end of the top plate limiting space is smaller than the outer diameter of the top plate.
3. The pump body automatic locking and sealing device according to claim 1 or 2, characterized in that: the limiting section rear end of roof is equipped with spacing fender platform, the spacing section of roof and spacing fender platform fixed connection, spacing fender platform is less than the radius of roof to the distance in roof center.
4. The pump body automatic locking and sealing device according to claim 1 or 2, characterized in that: the front end of the connecting plug is fixedly provided with a sealing ring, and the connecting plug is in sealing connection with the pump body flange.
5. The pump body automatic locking and sealing device according to claim 1 or 2, characterized in that: the second piston has a diameter length that is three times the diameter length of the first piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320812529.8U CN219344938U (en) | 2023-04-13 | 2023-04-13 | Automatic locking and sealing device for pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320812529.8U CN219344938U (en) | 2023-04-13 | 2023-04-13 | Automatic locking and sealing device for pump body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219344938U true CN219344938U (en) | 2023-07-14 |
Family
ID=87096575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320812529.8U Active CN219344938U (en) | 2023-04-13 | 2023-04-13 | Automatic locking and sealing device for pump body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219344938U (en) |
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2023
- 2023-04-13 CN CN202320812529.8U patent/CN219344938U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 6-7, Dongxin Road, Huancui Provincial Tourist Resort, Weihai, Shandong 264200 Patentee after: Shandong Emco Pump Industry Co.,Ltd. Country or region after: China Address before: No. 6-7, Dongxin Road, Huancui Provincial Tourist Resort, Weihai, Shandong 264200 Patentee before: SHANDONG SHUANGLUN EMMECOM PUMPS Co.,Ltd. Country or region before: China |
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| CP03 | Change of name, title or address |