CN208870776U - A kind of attachment device for suction pump nozzle - Google Patents

Abstract

The utility model discloses a kind of attachment devices for suction pump nozzle, including first pipe, second pipe and connecting bushing, it is detachably connected between the first pipe and second pipe, the connection end surfaces of the first pipe and second pipe are machined with step groove, the both ends uniform surface of the connecting bushing is body formed to be machined with the step protrusion matched with step groove, the step groove is equipped with seal convexity, the trapezoidal seal groove matched with seal convexity is offered in the step protrusion, is provided with diaphragm seal in the trapezoidal seal groove；It is also provided with arc seal groove on the step groove, is provided with sealing ring in arc seal groove.The advantages of the utility model has structure simple, and rationally, be connected firmly good airproof performance for design, quick for installation easy to maintenance, reduces construction cost, is conducive to the connection of water conservancy system pipeline, is suitble to promote the use of.

Description

A kind of attachment device for suction pump nozzle

Technical field

The utility model relates to a kind of nozzle attachment device, specifically a kind of attachment device for suction pump nozzle.

Background technique

Water pump is the machinery for conveying liquid or being pressurized liquid.It transmits the mechanical energy of prime mover or other external energies To liquid, increase liquid energy, is mainly used to convey liquid to include water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid gold Belong to etc..Water pump aqueduct is that water pump send one of common apparatus in water water, in water pump water delivery, often need by pipeline into Row, even if being connected between its nozzle and nozzle, to facilitate water delivery to need.

Existing water pump nozzle device is when being attached water pipe, it has not been convenient to mount and dismount, use is loaded down with trivial details, and water pipe After connection, poor sealing be easy to cause nozzle junction liquid leakage, influences water delivery operation.

Utility model content

The purpose of this utility model is to provide a kind of attachment devices for suction pump nozzle, to solve above-mentioned background skill The problem of being proposed in art.

To achieve the above object, the utility model provides the following technical solutions:

A kind of attachment device for suction pump nozzle, including first pipe, second pipe and connecting bushing, described first It is detachably connected between pipeline and second pipe, the connection end surfaces of the first pipe and second pipe are machined with step Slot, the both ends uniform surface of the connecting bushing is body formed to be machined with the step protrusion matched with step groove, the step groove It is equipped with seal convexity, offers the trapezoidal seal groove matched with seal convexity, the trapezoidal sealing in the step protrusion Diaphragm seal is provided in slot；It is also provided with arc seal groove on the step groove, is provided with sealing ring in arc seal groove.

As a further solution of the present invention: the connecting pin outer ring of the first pipe, which is integrally formed, is fixed with the One connection otic placode, the connecting pin of second pipe, which is integrally formed, is fixed with the second connection otic placode.

As a further solution of the present invention: passing through connection between first connection otic placode and the second connection otic placode Bolt dismantling formula is fixedly connected.

As a further solution of the present invention: the outer peripheral surface of the connecting bushing, which is integrally formed, is equipped with position-limiting ear Plate limits and offers limiting through hole on otic placode, and the middle part for connecting bolt is slided through in limiting through hole.

As a further solution of the present invention: the seal convexity integrated molding is connected on step groove.

Compared with prior art, the utility model has the beneficial effects that

The utility model is embedded in trapezoidal seal groove by seal convexity, and the end of seal convexity is made to squeeze diaphragm seal, It realizes sealing effect, and by the way that seal convexity to be embedded in trapezoidal seal groove, it is solid positioning further can be played to connecting bushing Fixed effect；And pass through limit otic placode, limiting through hole and the cooperation for connecting bolt, it can be ensured that the connecting pin of first pipe and the When being connected with each other between the connecting pin of two pipelines, the both ends of connecting bushing can respectively with the connecting pin of first pipe and second The connecting pin stabilization of pipeline is agreed with.In conclusion sealing ring and diaphragm seal of the utility model by setting, it can be to connection Play effective sealing effect, and first in junction between bushing and first pipe and between connecting bushing and second pipe Connection is detachably fixed between pipeline and second pipe, so that the utility model has structure simple, design rationally, is connected firmly Good airproof performance, is conducive to the connection of water conservancy system pipeline at quick for installation easy to maintenance, the advantages of reducing construction cost, is suitble to It promotes the use of.

Detailed description of the invention

Fig. 1 is structural schematic diagram of the utility model for the attachment device of suction pump nozzle.

Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1.

In figure: 1- first pipe, 2- second pipe, 3- connecting bushing, 4- sealing ring, the trapezoidal seal groove of 5-, 6- sealing are convex It rises, 7- diaphragm seal, 8- arc seal groove, 9- limits otic placode, 10- limiting through hole, the first connection otic placode of 11-, 12- step groove, 13- Connect bolt, the second connection otic placode of 21-, 22- step protrusion.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Embodiment 1

Please refer to Fig. 1~2, in the utility model embodiment, a kind of attachment device for suction pump nozzle, including first Pipeline 1, second pipe 2 and connecting bushing 3 are detachably connected between the first pipe 1 and second pipe 2, specifically, described The connecting pin outer ring of first pipe 1, which is integrally formed, is fixed with the first connection otic placode 11, and the connecting pin of second pipe 2 is integrally formed It is fixed with the second connection otic placode 21, wherein tearing open between the first connection otic placode 11 and the second connection otic placode 21 by connecting bolt 13 The formula of unloading is fixedly connected, and the connection end surfaces of the first pipe 1 and second pipe 2 are machined with step groove 12, the connection lining The both ends uniform surface of set 3 is body formed to be machined with the step protrusion 22 matched with step groove 12, further, the step groove It is integrally formed on 12 and is equipped with seal convexity 6, offer the trapezoidal seal groove matched with seal convexity 6 in the step protrusion 22 5, further, diaphragm seal 7 is provided in the trapezoidal seal groove 5, seal convexity 6 is embedded in trapezoidal seal groove 5, and makes to seal The end of protrusion 6 squeezes diaphragm seal 7, realizes sealing effect, and by the way that seal convexity 6 to be embedded in trapezoidal seal groove 5, also can The fixed effect of positioning is played to connecting bushing 3.

Further, it is also provided with arc seal groove 8 on the step groove 12, is provided with sealing ring in arc seal groove 8 4, the step protrusion 22 on connecting bushing 3 is tightly extruded on sealing ring 4, further increases sealing effect.

In connection status, connecting bushing 3 is placed between first pipe 1 and second pipe 2 the utility model, and by setting The sealing ring 4 and diaphragm seal 7 set, can be between connecting bushing 3 and first pipe 1 and connecting bushing 3 and second pipe 2 Between junction play effective sealing effect.

Embodiment 2

Unlike embodiment, in the utility model embodiment, the outer peripheral surface integrated molding of the connecting bushing 3 is set There is limit otic placode 9, limit and offer limiting through hole 10 on otic placode 9, the middle part of connection bolt 13 is slided through limiting through hole 10 It is interior, pass through limit otic placode 9, limiting through hole 10 and the cooperation for connecting bolt 13, it can be ensured that the connecting pin of first pipe 1 and second When being connected with each other between the connecting pin of pipeline 2, the both ends of connecting bushing 3 can respectively with the connecting pin of first pipe 1 and The connecting pin stabilization of two pipelines 2 is agreed with.

In conclusion the utility model structure is simple, rationally, be connected firmly good airproof performance, maintenance side quick for installation for design Just, construction cost is reduced, the connection of water conservancy system pipeline is conducive to, is suitble to promote the use of.

The standardized element that the utility model uses can commercially, shaped piece according to specification and attached drawing Record can carry out customized, the specific connection type of each part is all made of in the prior art mature bolt, rivet, weldering Equal conventional means are connect, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection is using existing Conventional connection type in technology, this will not be detailed here.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (5)

1. a kind of attachment device for suction pump nozzle, including first pipe (1), second pipe (2) and connecting bushing (3), It is characterized in that, being detachably connected between the first pipe (1) and second pipe (2), the first pipe (1) and the second pipe The connection end surfaces in road (2) are machined with step groove (12), and the both ends uniform surface of the connecting bushing (3) is body formed to be machined with The step matched with step groove (12) is raised (22), and the step groove (12) is equipped with seal convexity (6), the step protrusion (22) the trapezoidal seal groove (5) matched with seal convexity (6) is offered on, is provided with sealing in the trapezoidal seal groove (5) Piece (7)；It is also provided with arc seal groove (8) on the step groove (12), is provided with sealing ring (4) in arc seal groove (8).

2. a kind of attachment device for suction pump nozzle according to claim 1, which is characterized in that the first pipe (1) connecting pin outer ring is integrally formed and is fixed with the first connection otic placode (11), and the connecting pin of second pipe (2) is integrally formed solid Surely the second connection otic placode (21) are equipped with.

3. a kind of attachment device for suction pump nozzle according to claim 2, which is characterized in that first connection Connection is detachably fixed by connecting bolt (13) between otic placode (11) and the second connection otic placode (21).

4. any a kind of attachment device for suction pump nozzle according to claim 1~3, which is characterized in that described The outer peripheral surface of connecting bushing (3), which is integrally formed, is equipped with limit otic placode (9), offers limiting through hole (10) in limit otic placode (9), The middle part sliding for connecting bolt (13) is interior through limiting through hole (10).

5. a kind of attachment device for suction pump nozzle according to claim 1, which is characterized in that the seal convexity (6) it is integrally formed and is connected on step groove (12).