CN206608329U - Stainless steel submersible pump leak test structure - Google Patents
Stainless steel submersible pump leak test structure Download PDFInfo
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- CN206608329U CN206608329U CN201720214245.3U CN201720214245U CN206608329U CN 206608329 U CN206608329 U CN 206608329U CN 201720214245 U CN201720214245 U CN 201720214245U CN 206608329 U CN206608329 U CN 206608329U
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- leak test
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Abstract
The utility model provides a kind of stainless steel submersible pump leak test structure, belongs to pump technology field.The problem of it solves destruction immersible pump sealing when existing immersible pump has wiring after leak test by wiring hole leak test.This stainless steel submersible pump leak test structure, immersible pump includes the motor casing and the pump cover located at motor casing top positioned at bottom, the top of pump cover is provided with wiring hole, leak test structure is on pump cover, leak test structure includes the gas prospect hole at the top of pump cover, the upper end of gas prospect hole is provided with plug, and the position limiting structure for being provided with sealing ring, gas prospect hole and being used for preventing that plug from coming off is provided between plug and pump cover.The utility model has the advantages that leak test convenience, good airproof performance.
Description
Technical field
The utility model belongs to pump technology field, is related to a kind of stainless steel submersible pump leak test structure.
Background technology
Immersible pump is the pump of work of diving beneath the water, if the poor sealing of motor for submerged pump part, is not only had a strong impact on latent
The safe operation of water pump, and easily cause the waste of substantial amounts of manpower and financial resources, it is therefore desirable to the sealing property of immersible pump
Do accurate detection.Immersible pump includes the motor casing and the pump cover located at motor casing top positioned at bottom, in motor casing and pump cover
Between be provided with bearing cap, the rotor fixed position of motor has wiring hole on bearing cap on pump cover, the lead of motor passes through wiring hole
And pass through many rubber seals.Leak test detection of the tradition to immersible pump is after connecting motor casing and pump cover, by pump cover
Wiring hole judges whether it qualified as gas prospect hole by wiring hole toward injection gas in immersible pump, after detection is finished, it is necessary to
To motor rewiring.In wiring, it is possible to the sealing destroyed at wiring hole, and then influence the sealing of immersible pump.
Therefore, some enterprises carry out leak test inspection using the gas prospect hole in addition to wiring hole is opened up on pump cover to immersible pump
Survey, it connects motor casing with pump cover, and motor wiring is connected and wiring hole is sealed, pass through the past diving of the gas prospect hole newly opened
Injection gas is qualified to determine whether in pump, and detection needs plugging structure to block gas prospect hole after finishing.For traditional cast iron
The pump cover of part, its wall thickness is 8-10mm, and plugging structure is directly to attack the internal thread in gas prospect hole and the envelope with screw-internal thread fit
Blocking screw, due to this immersible pump wall thickness and heaviness, is gradually replaced by thin-wall stainless steel immersible pump.Thin-wall stainless steel immersible pump
Pump cover wall thickness for 1.5mm or so, after gas prospect hole is opened up thereon, it is impossible to by gas prospect hole tapping closure is set
Structure, processing difficulties.
Suppress leakage test plugging structure therefore, Chinese patent discloses a kind of water pump hole [Authorization Notice No. is
CN205262680U], including the pressing plate being arranged on cylinder block water pump hole and the sealing gasket I at the pressing plate back side is arranged on, pressing plate passes through
Rigging screw is fixed on cylinder body, be provided with water pump hole with the tight screw in school that is engaged in the middle part of pressing plate, the tight screw in school and pressing plate it
Between be provided with sealing gasket I I.It is threadedly coupled by the tight screw in school with pressing plate, sealing gasket I and sealing gasket I I is compressed respectively, reached
Block the purpose in water pump hole.Although the plugging structure can be suitably used for thin-wall stainless steel immersible pump, problems with is still suffered from：1、
Cooperation between the two is realized by rotating the tight screw in school during connection, because pressing plate is located at outside, the tight screw in school is located at inner side,
It is difficult then that the tight screw in school is screwed from inside for the immersible pump assembled, operates extremely difficult；2nd, pressing plate volume is larger,
Manufacturing cost height is, it is necessary to which rigging screw and the assembling screwed hole on pump cover carry out positioning pressuring plate, and pump cover wall thickness is relatively thin, it is impossible to open
If assembling screwed hole, therefore pressing plate can not be positioned, the scope of application is small.
The content of the invention
The purpose of this utility model is there is above mentioned problem for existing technology, it is proposed that a kind of leak test is convenient, sealing
The good stainless steel submersible pump leak test structure of property.
The purpose of this utility model can be realized by following technical proposal：
This stainless steel submersible pump leak test structure, immersible pump includes the motor casing and the pump located at motor casing top positioned at bottom
Lid, the top of the pump cover is provided with wiring hole, and leak test structure is on pump cover, it is characterised in that described leak test structure includes
Gas prospect hole at the top of pump cover, the upper end of the gas prospect hole is provided with plug, and sealing ring is provided between described plug and pump cover,
The position limiting structure for being used for preventing that plug from coming off is provided with described gas prospect hole.
After immersible pump is assembled, the circuit of motor is connected, and wiring hole is sealed up.By gas prospect hole toward in immersible pump
Air is injected in portion, judges whether the sealing of immersible pump is qualified, detection is blocked gas prospect hole by plug, sealing ring after finishing
It is good.
In above-mentioned stainless steel submersible pump leak test structure, there is the side of gas prospect hole at described gas prospect hole by punch forming
Wall and the locating ring positioned at side wall lower ends, described side wall extending axially downward along gas prospect hole seal in the presence of plug
Circle is resisted against on locating ring.
During processing, an aperture is opened up at the top of pump cover first, then the pressure head by punch press and aperture centering, pass through
The direct punch forming side wall of pressure head and locating ring, gas prospect hole are located between side wall and locating ring.
In above-mentioned stainless steel submersible pump leak test structure, described locating ring tilts down setting from outside to inside.
In above-mentioned stainless steel submersible pump leak test structure, described locating ring extending radially inwardly along gas prospect hole.
In above-mentioned stainless steel submersible pump leak test structure, described position limiting structure includes being fixed on the limit of locating ring bottom
Position part and the connecting portion that is fixed on plug, above-mentioned sealing ring are set on connecting portion, offered on described locating part with
Gas prospect hole is coaxial and screwed hole of connection, has the external screw thread coordinated with screwed hole on described connecting portion.
After leak test is finished, sealing ring is nested on connecting portion, and connecting portion is threadedly coupled on locating part, now
Sealing ring is compressed by plug, and sealing ring is born against to be compressed in plug, connecting portion, side wall and locating ring, reaches sealed effect.
In above-mentioned stainless steel submersible pump leak test structure, described locating part is to be welded on being tried with gas for locating ring bottom
The nut that hole centering is set.
In above-mentioned stainless steel submersible pump leak test structure, described connecting portion is the screw coordinated with nut, described
Plug is the head of screw.
In above-mentioned stainless steel submersible pump leak test structure, the internal diameter of the sealing ring is equal to the external diameter of screw.
Gas prospect hole on pump cover is processed after shaping, before pump cover is assembled into motor casing, by nut and gas prospect hole pair
In and by the bottom of nut-welding to locating ring, welding, which is finished, is connected to pump cover on motor casing, by wiring hole to motor
Wiring is carried out, and docks string holes being sealed.By gas prospect hole toward inflation in immersible pump, leak test detection is carried out, will set after finishing
Screw thread provided with sealing ring is connected on nut, and sealing ring is compacted in the presence of screw with locating ring, palette
On side wall and screw, sealing is formed.
Compared with prior art, this stainless steel submersible pump leak test structure has advantages below：
By the lower end welded nut in gas prospect hole, it can avoid directly opening up internal thread on the relatively thin pump cover of wall thickness, plus
Work is convenient, and manufacturing cost is low；After leak test is completed, it is connected by screw and nut, sealing ring is compressed, connected
It is convenient, and good sealing effect, the sealing of immersible pump in itself will not be destroyed.
Brief description of the drawings
Fig. 1 is a kind of structural representation for preferred embodiment that the utility model is provided.
In figure, 1, motor casing；2nd, pump cover；3rd, wiring hole；4th, sealing ring；5th, side wall；6th, locating ring；7th, locating part；8th, even
Socket part；9th, plug.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
Embodiment one
Immersible pump as shown in Figure 1 includes the motor casing 1 and the pump cover 2 located at the top of motor casing 1 positioned at bottom, pump cover 2
Top be provided with wiring hole 3, leak test structure is on the pump cover 2.As shown in figure 1, leak test structure includes the gas located at the top of pump cover 2
Prospect hole, the upper end of gas prospect hole is provided with plug 9, and being provided with sealing ring 4, gas prospect hole to be provided between plug 9 and pump cover 2 is used to prevent from blocking up
First 9 position limiting structures come off.
After immersible pump is assembled, the circuit of motor is connected, and wiring hole 3 is sealed up.By gas prospect hole toward immersible pump
Inside injection air, judges whether the sealing of immersible pump is qualified, detection is sealed gas prospect hole by plug 9, sealing ring 4 after finishing
Block up.
As shown in figure 1, having the side wall 5 and the locating ring positioned at the lower end of side wall 5 of gas prospect hole at gas prospect hole by punch forming
6, side wall 5 is extended axially downward along gas prospect hole, and sealing ring 4 is resisted against on locating ring 6 in the presence of plug 9.
During processing, an aperture is opened up at the top of pump cover 2 first, then the pressure head by punch press and aperture centering, lead to
The direct punch forming side wall 5 of pressure head and locating ring 6 are crossed, gas prospect hole is located between side wall 5 and locating ring 6.
Specifically, as shown in figure 1, locating ring 6 tilts down setting from outside to inside.
As shown in figure 1, position limiting structure includes the locating part 7 for being fixed on the bottom of locating ring 6 and the connection being fixed on plug 9
Portion 8, sealing ring 4 is set on connecting portion 8, is offered on locating part 7 and gas prospect hole is coaxial and the screwed hole that connects, connecting portion 8
The upper external screw thread with screwed hole cooperation.After leak test is finished, sealing ring 4 is nested on connecting portion 8, and by connecting portion 8
It is threadedly coupled on locating part 7, now sealing ring 4 is compressed by plug 9, sealing ring 4 is born against in plug 9, connecting portion 8, side
Wall 5 and locating ring 6 are compressed, and reach sealed effect.
In the present embodiment, as shown in figure 1, locating part 7 is the spiral shell set with the centering of gas prospect hole for being welded on the bottom of locating ring 6
Mother, connecting portion 8 is the screw coordinated with nut, and plug 9 is the head of screw.
As shown in figure 1, the internal diameter of sealing ring 4 is equal to the external diameter of screw.
Gas prospect hole on pump cover 2 is processed after shaping, before pump cover 2 is assembled into motor casing 1, by nut and gas prospect hole
Centering and by nut-welding to the bottom of locating ring 6, welding, which is finished, is connected to pump cover 2 on motor casing 1, passes through wiring hole 3
Wiring is carried out to motor, and docks string holes 3 being sealed.By gas prospect hole toward inflation in immersible pump, leak test detection is carried out, is finished
The screw thread for being arranged with sealing ring 4 is connected on nut afterwards, sealing ring 4 is compacted in the presence of screw with locating ring 6,
Palette forms sealing on side wall 5 and screw.
Embodiment two
The structural principle of the structural principle be the same as Example one of the present embodiment is essentially identical, and different places are, locating ring 6
Along extending radially inwardly for gas prospect hole.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (8)
1. a kind of stainless steel submersible pump leak test structure, immersible pump is included positioned at the motor casing (1) of bottom and on motor casing (1)
The pump cover (2) in portion, the top of the pump cover (2) is provided with wiring hole (3), and leak test structure is on pump cover (2), it is characterised in that
Described leak test structure includes the gas prospect hole at the top of pump cover (2), and the upper end of the gas prospect hole is provided with plug (9), described
Being provided with to be provided with sealing ring (4), described gas prospect hole between plug (9) and pump cover (2) is used to prevent plug (9) from coming off spacing
Structure.
2. stainless steel submersible pump leak test structure according to claim 1, it is characterised in that pass through punching at described gas prospect hole
The molded side wall (5) and the locating ring (6) positioned at side wall (5) lower end for having a gas prospect hole, the axle of described side wall (5) along gas prospect hole
To extending downwardly, sealing ring (4) is resisted against on locating ring (6) in the presence of plug (9).
3. stainless steel submersible pump leak test structure according to claim 2, it is characterised in that described locating ring (6) is by outer
Setting is tilted down to interior.
4. stainless steel submersible pump leak test structure according to claim 2, it is characterised in that described locating ring (6) is along gas
Prospect hole is extended radially inwardly.
5. stainless steel submersible pump leak test structure according to claim 1 or 2, it is characterised in that described position limiting structure bag
Include the connecting portion (8) for being fixed on the locating part (7) of locating ring (6) bottom and being fixed on plug (9), above-mentioned sealing ring (4)
It is set on connecting portion (8), is offered on described locating part (7) and gas prospect hole is coaxial and the screwed hole that connects, described company
There is the external screw thread coordinated with screwed hole in socket part (8).
6. stainless steel submersible pump leak test structure according to claim 5, it is characterised in that described locating part (7) is weldering
It is connected on the nut set with the centering of gas prospect hole of locating ring (6) bottom.
7. stainless steel submersible pump leak test structure according to claim 6, it is characterised in that described connecting portion (8) be with
The screw that nut coordinates, described plug (9) is the head of screw.
8. stainless steel submersible pump leak test structure according to claim 7, it is characterised in that the internal diameter of the sealing ring (4)
Equal to the external diameter of screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214245.3U CN206608329U (en) | 2017-03-07 | 2017-03-07 | Stainless steel submersible pump leak test structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720214245.3U CN206608329U (en) | 2017-03-07 | 2017-03-07 | Stainless steel submersible pump leak test structure |
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| Publication Number | Publication Date |
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| CN206608329U true CN206608329U (en) | 2017-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720214245.3U Active CN206608329U (en) | 2017-03-07 | 2017-03-07 | Stainless steel submersible pump leak test structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267273A (en) * | 2018-01-30 | 2018-07-10 | 无锡富泰盛精模科技有限公司 | V E pumps pump cover sealing performance device for fast detecting |
-
2017
- 2017-03-07 CN CN201720214245.3U patent/CN206608329U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267273A (en) * | 2018-01-30 | 2018-07-10 | 无锡富泰盛精模科技有限公司 | V E pumps pump cover sealing performance device for fast detecting |
| CN108267273B (en) * | 2018-01-30 | 2023-10-31 | 无锡富泰盛精模科技有限公司 | Quick detection device for sealing performance of VE pump cover |
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