CN206495792U - Water pump lifting-proof machine device - Google Patents
Water pump lifting-proof machine device Download PDFInfo
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- CN206495792U CN206495792U CN201720201537.3U CN201720201537U CN206495792U CN 206495792 U CN206495792 U CN 206495792U CN 201720201537 U CN201720201537 U CN 201720201537U CN 206495792 U CN206495792 U CN 206495792U
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- cable
- water pump
- roller
- protecting device
- machine device
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Abstract
The utility model discloses a kind of water pump lifting-proof machine device, including cable protecting device of roller, locking nut, stretching screw, pit shaft lid built-in fitting, holddown plate, operation port lid, cushion pad, cable, cable is directly entered cable protecting device of roller after water pump Base top contact and cable is fixed on the centre of body and pit shaft lid built-in fitting always, operation port lid is directly covered after extraction, the friction completely cut off between cable and tube wall and barrel.The tapered lower end of cable protecting device of roller is pressed in pump housing upper end, and pump housing upper end is fixed in its body upper end by holddown plate, stretching screw and locking nut.It is flexible material that cushion pad is set between holddown plate and the body upper end of cable protecting device of roller, can effectively absorbing, while it also avoid influence of the rigid support to water pump axial force balance, so that entirely anti-machine device more safety and firmness.
Description
Technical field
The invention belongs to water pump hydraulic technical field, and in particular to be water pump lifting-proof machine device.
Background technology
In the process of running, three kinds of situations can cause water pump to lift machine phenomenon to water pump below：
1st, it is to fix cable with steel wire rope and geometrical clamp in pit shaft in existing cable fixed form, such as steel wire rope
Tightening force it is too small, then the protective effect to cable is not obvious；Tightening force is excessive, then produces a upward pulling force to water pump,
Pump weight is alleviated, the frictional resistance moment of engineering for pump housing and seat ring is also reduced, when water pump is started shooting, pumped (conveying) medium also can to water pump
A upward thrust is produced to occur lift machine phenomenon.
2nd, when water pump is shut down, the pumped (conveying) medium in pipeline will be flowed back due to deadweight, and impeller is by reflux medium
, there is impeller reversion in effect, forms hydraulic turbine condition, and water pump body is added steel by one upward thrust of liquid in runner
The pulling force effect of cord, if water pump deadweight is less than making a concerted effort for two upward power, water pump will produce upward drift, that is, go out
Now lift machine phenomenon.
3rd, water pump is in normal operation, and the flow media of conveying can produce irregular disturb to the cable in pit shaft in pit shaft
It is dynamic, if cable can destroy sealing and the insulating properties of cable, the operation to motor is brought without reliably fixed and protection
Potential safety hazard, so that the pumped (conveying) medium in the phenomenon such as unexpected power-off that the power-off triggered and other reasons trigger, outlet passage
Backflow, parital vacuum phenomenon is produced in the end of runner, and in the front end of open type runner, because the effect of atmospheric pressure is formed
Pressure differential so that water pump one upward thrust of formation, so as to produce lift machine phenomenon.
The content of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of water pump lifting-proof machine device, can effectively prevent water pump
Lift machine phenomenon, while eliminating the potential safety hazard of motor operation.
Water pump lifting-proof machine device of the present utility model, including 1 cable protecting device of roller, 2 locking nuts, 3 stretching screws, 4 wells
Cover built-in fitting, 5 holddown plates, 6 operation port lids, 7 cushion pads, 8 cable.
The technical problem of solution is as follows：
1st, to prevent the rocking in conveying liquid medium of cable 8 and the abrasion with steel wire rope, needed in the utility model
Whole cable 8 to be protected is directly entered after water pump Base top contact in cable protecting device of roller 1, prevents working fluid impact cable
8；The cable 8 in cable protecting device of roller 1 is fixed on the centre of body and pit shaft lid built-in fitting 4 always simultaneously, straight after extraction
Connect and cover operation port lid 6, the friction completely cut off between cable 8 and tube wall and barrel.
2nd, to prevent water pump from occurring lift machine phenomenon, the tapered lower end of cable protecting device of roller 1 is pressed in pump in the utility model
Body upper end, its body upper end is securely fastened to pump housing upper end by holddown plate 5, stretching screw 3 and locking nut 2, so as to produce
A raw downward pre-pressing force can effectively prevent the upper lift of water pump.
3rd, set cushion pad 7 to be flexible material between holddown plate 5 and the body upper end of cable protecting device of roller 1, can have
Absorbing is imitated, influence of the rigid support to water pump axial force balance is it also avoid while vibration is mitigated, so that whole anti-
Machine device more safety and firmness.
Anti- machine device of water pump, it is simple and practical, it effectively prevent cable and impacted in pit shaft by working fluid；Keep away
The damage exempted from the friction of cable and sleeve pipe and produced；The lift machine during water pump operation and startup-shutdown is effectively prevent simultaneously to show
As the influence to equipment safety stable operation.
Brief description of the drawings
Fig. 1 is water pump lifting-proof machine device sectional structure chart of the present utility model；
Fig. 2 is the partial enlarged drawing of pit shaft lid built-in fitting and handle hole cover；
Have in figure：Cable protecting device of roller 1, locking nut 2, stretching screw 3, pit shaft lid built-in fitting 4, holddown plate 5, operation
Port lid 6, cushion pad 7, cable .8.
Embodiment
As shown in Figure 1 and Figure 2, pit shaft lid built-in fitting is embedded into after specified location, and water pump is hung in pit shaft, and water pump is installed
After the completion of, it is directly entered cable protecting device of roller from the cable of water pump Base top contact and is fixed on body always and pit shaft lid is pre-buried
The centre of part, directly covers operation port lid after extraction, the friction completely cut off between cable and tube wall and barrel.Cable protecting device of roller
Tapered lower end is pressed in pump housing upper end, and its body upper end is connected by holddown plate, stretching screw, locking nut and pit shaft lid built-in fitting
It is integrated and is securely fastened to pump housing upper end.The cushion pad set between holddown plate and the body upper end of cable protecting device of roller with
Flexible material is optimal.
Claims (5)
1. water pump lifting-proof machine device, including cable protecting device of roller（1）, locking nut（2）, stretching screw（3）, pit shaft lid built-in fitting
（4）, holddown plate（5）, operate port lid（6）, cushion pad (7), cable (8), it is characterised in that：The cable protecting device of roller (1)
Body upper end pump housing upper end is fixed on by holddown plate (5), stretching screw (3) and locking nut (2).
2. water pump lifting-proof machine device as claimed in claim 1, it is characterised in that：The cable protecting device of roller（1）Lower end be
Taper.
3. water pump lifting-proof machine device as claimed in claim 1, it is characterised in that：Cable（8）After water pump Base top contact directly
Into cable protecting device of roller（1）It is interior, and body and pit shaft lid built-in fitting are fixed on always（4）Centre, directly covered after extraction
Upper operation port lid (6).
4. water pump lifting-proof machine device as claimed in claim 1, it is characterised in that：The holddown plate (5) fills with cable protective
Put setting cushion pad (7) between the body upper end of (1).
5. the water pump lifting-proof machine device as described in claim 1 or claim 4, it is characterised in that：The cushion pad (7) is
Flexible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201537.3U CN206495792U (en) | 2017-03-03 | 2017-03-03 | Water pump lifting-proof machine device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720201537.3U CN206495792U (en) | 2017-03-03 | 2017-03-03 | Water pump lifting-proof machine device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495792U true CN206495792U (en) | 2017-09-15 |
Family
ID=59806251
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720201537.3U Active CN206495792U (en) | 2017-03-03 | 2017-03-03 | Water pump lifting-proof machine device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495792U (en) |
-
2017
- 2017-03-03 CN CN201720201537.3U patent/CN206495792U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |