CN204277951U - The pre-buried fastening system of water pump - Google Patents
The pre-buried fastening system of water pump Download PDFInfo
- Publication number
- CN204277951U CN204277951U CN201420730902.6U CN201420730902U CN204277951U CN 204277951 U CN204277951 U CN 204277951U CN 201420730902 U CN201420730902 U CN 201420730902U CN 204277951 U CN204277951 U CN 204277951U
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- Prior art keywords
- jaw
- hollow ring
- water pump
- ring set
- fastening system
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Abstract
This patent discloses a kind of installation fastening accessory of water pump, is specifically related to the pre-buried fastening system for being fixed on by engineering for pump housing on cement flooring.The pre-buried fastening system of water pump, comprise foundation bolt and corresponding nut, described foundation bolt bottom is provided with frustum, top is thread segment, also comprise swelling pawl dish, this swelling pawl dish comprises a hollow ring set and circumference and is distributed in the jaw that hollow ring puts, described jaw is all located at the downside of described hollow ring set, each jaw bends to the direction of axis line of hollow ring set, be provided with between adjacent jaw and leave gap, the hollow ring of described gap location puts and offers axially spaced-apart groove, wherein the interior annular aperture of hollow ring set is identical with the large footpath of described thread segment, described swelling pawl dish is set on foundation bolt.The utility model overcomes the engineering for pump housing cement defect that technique for fixing cost is higher again in prior art, provides a kind of pre-buried fastening system of water pump again being reinforced engineering for pump housing by mechanical expansion gripping members.
Description
Technical field
The utility model relates to a kind of installation fastening accessory of water pump, is specifically related to the pre-buried fastening system for being fixed on by engineering for pump housing on cement flooring.
Background technology
Water pump is conveying liquid or the machinery making fluid pressurization.It sends the mechanical energy of prime mover or other external energies to liquid, liquid energy is increased, be mainly used to conveying liquid and comprise water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal etc., also can carry liquid, admixture of gas and the liquid containing suspended solids.
Namely current modal water pump is fire pump, and as a kind of water pump be directly installed on cement pavement, its base of fire pump is directly fixed on cement pavement by pre-buried foundation bolt.
Foundation bolt: the one of bolt, main feature is that top is provided with screw thread, by being fixed on the ground by plant bottom case with nut screw connection; L-shaped, the hook-shaped or frustum in foundation bolt bottom (frustum also known as frustum, refer to circular cone or pyramid cut by two parallel planes after, the solid between two parallel planes).
Pre-buried, be just insert in cement by the bottom of foundation bolt before the cement mummification of road surface, after road surface mummification is shaped, the bottom of foundation bolt is fixedly connected with cement, the thread segment on top bassets, and thread segment is by fixing on the ground plant bottom case with nut screw connection.
Pre-embedded anchoring bolts is fixing relative to the bolt of routine more firm, but cement and foundation bolt adopt different materials to make, the intensity of variation that both expand with heat and contract with cold is different, and the temperature Change of normal phase, finally can cause producing larger contact gap between foundation bolt and corresponding cement.
Under the prerequisite that contact gap exists, the connection on engineering for pump housing and ground can create loosening, and this loosens can cause certain potential safety hazard for passing pedestrian.Existing solution fills up new cement in above-mentioned contact gap, thus foundation bolt is closely engaged with cement, avoids water pump to occur to loosen.
But refill cement again to prepare cement, and need bulk cement carrier to transport along road, every fire pump place, all needs the bulk cement carrier that stops, and takes indivisible cement to fill up gap, just needs to transfer many bulk cement carriers if will accelerate efficiency; The method that cement pours into again as can be seen here will employ bulk cement carrier, and cost is higher.
Utility model content
Technical problem to be solved in the utility model provides a kind of lower-cost, and after can producing contact gap between foundation bolt and corresponding cement, again reinforces the pre-buried fastening system of water pump of engineering for pump housing.
In order to solve the problems of the technologies described above, the utility model provides following technical scheme:
The pre-buried fastening system of water pump, comprise foundation bolt and corresponding nut, described foundation bolt bottom is provided with frustum, top is thread segment, also comprise swelling pawl dish, this swelling pawl dish comprises a hollow ring set and circumference and is distributed in the jaw that hollow ring puts, described jaw is all located at the downside of described hollow ring set, each jaw bends to the direction of axis line of hollow ring set, be provided with between adjacent jaw and leave gap, the hollow ring of described gap location puts and offers axially spaced-apart groove, wherein the interior annular aperture of hollow ring set is identical with the large footpath of described thread segment, described swelling pawl dish is set on foundation bolt.
Large footpath alleged by the utility model, also known as the nominal diameter (except gas thread) of screw thread, Major Diam is the cylinder diameter that external screw thread crest coincides.
Adopt the pre-buried fastening system of the utility model water pump, there is following effect:
When producing gap between foundation bolt and cement, first nut should be unloaded, engineering for pump housing is removed, then the hollow ring set of swelling pawl dish is nested on the thread segment of bolt, require that jaw down; Then advanced downwards by swelling pawl dish by rod member or other impellers, because annular aperture in hollow ring set is identical with the large footpath of described thread segment, in structural design, thread segment is not enough to the propelling hindering hollow ring set; When swelling pawl dish is advanced to the frustum place below thread segment, the jaw be in below hollow ring set preferentially abuts to the outer surface of frustum; Because frustum outer surface is conical surface shape, more be urged downwardly into, jaw (bending to hollow ring cover axial line) can be subject to from the stronger outer tension force of frustum, gap is left owing to being provided with between adjacent jaw, the hollow ring of described gap location puts and offers axially spaced-apart groove, this is the design feature adopting existing elastic expansion sleeve split shed groove, and jaw outwards can be opened relative to hollow ring set.Continue to advance, jaw is out of shape further, until jaw is clamped in frustum place completely, till cannot advancing.Finally take out above-mentioned impeller, reinstall at the bottom of water pump and sit and nut.
Whole process does not need new cement to inject, but by principle that expansion set clamps, frustum is tightened together with cement again, although still and between cement there is contact gap in thread segment, but after the fastening and top of frustum is connected by nut, can reach again fastening object, thus not need double thread section to process further again.
Further, the inner side of itself and jaw junction of described hollow ring set is provided with deep-slotted chip breaker.
On the basis of axially spaced-apart groove, deep-slotted chip breaker is added again on hollow ring cover, because deep-slotted chip breaker is in the inner side of hollow ring set and jaw junction, jaw can be made so more easy relative to the rotation of hollow ring set, improve the deformability of jaw relative to hollow ring set.
Further, described jaw is triangular shape, and offers groove in the middle part of jaw.
Jaw is set as triangular shape, and offers groove in the middle part of jaw, described like this jaw just only has three seamed edges on the whole, arranging like this is on the one hand to save material, be that the structural strength of jaw is reduced on the other hand, be easier to distortion, reduce the resistance of follow-up forward operation.
Further, also comprise hollow sleeve, hollow sleeve is also set on thread segment, and is located at above swelling pawl dish, and the thickness of hollow sleeve is less than the gap between thread segment and adjacent cement.
This hollow sleeve is on the one hand for transmitting propulsive force, and hollow ring propulsive force being delivered to swelling pawl dish puts; Another aspect hollow sleeve can also be used to the gap filled up between thread segment and cement.But hollow sleeve is different from jaw, do not have deformability, and cement also can not be too smooth, in order to realize advancing smoothly, so on size is arranged, the thickness of hollow sleeve should be less than the gap between thread segment and cement.
Accompanying drawing explanation
Fig. 1 is the status architecture schematic diagram in the concrete installation process of the pre-buried fastening system of the utility model water pump.
Fig. 2 is the structural representation of swelling pawl dish in Fig. 1.
Fig. 3 is the top view of Fig. 2.
Fig. 4 is the status architecture schematic diagram after the pre-buried fastening system installation of the utility model water pump.
Detailed description of the invention
Below by detailed description of the invention, the utility model is described in further detail:
Reference numeral in Figure of description comprises: nut 1, thread segment 2, installing hole 3, hollow sleeve 4, engineering for pump housing 6, projectile 7, jaw 8, axially spaced-apart groove 9, deep-slotted chip breaker 10, hollow ring set 11, inner ring 12, groove 13, frustum 15, cement 16, cement table wall 17.
As shown in Figure 1, the pre-buried fastening system of the utility model water pump, comprise foundation bolt and corresponding nut 1, described foundation bolt bottom is provided with frustum 15, and top is thread segment 2, also comprise swelling pawl dish, this swelling pawl dish is made up of beryllium-bronze, because beryllium-bronze elasticity is better, after the heat treatment of solution treatment and timeliness, compression strength can reach 1250 ~ 1500MPa, is that stability or the dimensional stability of elastic force is all better than spring steel.Also comprise hollow sleeve 4, hollow sleeve 4 is also set on thread segment 2, and is located at above swelling pawl dish.
As shown in Figure 1, in installation process, first swelling pawl dish is nested in thread segment 2, then the thickness being inserted in hollow sleeve 4(hollow sleeve 4 is less than the gap between thread segment 2 and adjacent cement 16, clearance control is between 2 ~ 3mm, according to actual conditions adjustment), then promoting hollow sleeve 4 by the projectile 7 of the hollow barrel-type of a band handle, indirectly promoting swelling pawl dish to entering.
As shown in Figure 1, 2, swelling pawl dish comprises a hollow ring set 11 and circumference and is distributed in jaw 8 on hollow ring set 11, and described jaw 8 is all located at the downside of described hollow ring set 11, and each jaw 8 bends to the direction of axis line of hollow ring set 11.
As shown in Figure 2,3, be provided with between adjacent jaw 8 and leave gap, the hollow ring set 11 of described gap location offers axially spaced-apart groove 9, and wherein inner ring 12 aperture of hollow ring set 11 is identical with the large footpath of described thread segment 2, and described swelling pawl dish is set on foundation bolt.The inner side of the junction of hollow ring set 11 itself and jaw 8 is provided with deep-slotted chip breaker 10.Jaw 8 in triangular shape, and offers groove 13 in the middle part of jaw 8.
As shown in Figure 4, above-mentioned swelling pawl dish can in progradation dilatating and deformable, when jaw 8 is clamped between cement table wall 17 and frustum 15, just can remove projectile 7, then the installing hole 3 of engineering for pump housing 6 is nested in thread segment 2, install nut 1.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art; under the prerequisite not departing from the utility model structure; some distortion and improvement can also be made; as by embodiment two, three the distinguishing characteristics that proposes and embodiment one be combined; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the detailed description of the invention in description etc. record the content that may be used for explaining claim.
Claims (4)
1. the pre-buried fastening system of water pump, comprise foundation bolt and corresponding nut, described foundation bolt bottom is provided with frustum, top is thread segment, it is characterized in that, also comprise swelling pawl dish, this swelling pawl dish comprises a hollow ring set and circumference and is distributed in the jaw that hollow ring puts, described jaw is all located at the downside of described hollow ring set, each jaw bends to the direction of axis line of hollow ring set, be provided with between adjacent jaw and leave gap, the hollow ring of described gap location puts and offers axially spaced-apart groove, wherein the interior annular aperture of hollow ring set is identical with the large footpath of described thread segment, described swelling pawl dish is set on foundation bolt.
2. the pre-buried fastening system of water pump as claimed in claim 1, is characterized in that: the inner side of the junction of described hollow ring set itself and jaw is provided with deep-slotted chip breaker.
3. the pre-buried fastening system of water pump as claimed in claim 1, is characterized in that: described jaw is triangular shape, and offers groove in the middle part of jaw.
4. the pre-buried fastening system of water pump as claimed in claim 1, it is characterized in that: also comprise hollow sleeve, hollow sleeve is also set on thread segment, and is located at above swelling pawl dish, and the thickness of hollow sleeve is less than the gap between thread segment and adjacent cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730902.6U CN204277951U (en) | 2014-11-30 | 2014-11-30 | The pre-buried fastening system of water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420730902.6U CN204277951U (en) | 2014-11-30 | 2014-11-30 | The pre-buried fastening system of water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204277951U true CN204277951U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420730902.6U Expired - Fee Related CN204277951U (en) | 2014-11-30 | 2014-11-30 | The pre-buried fastening system of water pump |
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| CN (1) | CN204277951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400753A (en) * | 2014-11-30 | 2015-03-11 | 重庆锦冈机械有限公司 | Water pump embedment fastening system |
-
2014
- 2014-11-30 CN CN201420730902.6U patent/CN204277951U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400753A (en) * | 2014-11-30 | 2015-03-11 | 重庆锦冈机械有限公司 | Water pump embedment fastening system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20151130 |
|
| EXPY | Termination of patent right or utility model |