CN201351613Y - Displacement pump - Google Patents

Displacement pump Download PDF

Info

Publication number
CN201351613Y
CN201351613Y CNU2008201712639U CN200820171263U CN201351613Y CN 201351613 Y CN201351613 Y CN 201351613Y CN U2008201712639 U CNU2008201712639 U CN U2008201712639U CN 200820171263 U CN200820171263 U CN 200820171263U CN 201351613 Y CN201351613 Y CN 201351613Y
Authority
CN
China
Prior art keywords
screw rod
annular
screw
pump
working room
Prior art date
Application number
CNU2008201712639U
Other languages
Chinese (zh)
Inventor
陈敏
Original Assignee
陈敏
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 陈敏 filed Critical 陈敏
Priority to CNU2008201712639U priority Critical patent/CN201351613Y/en
Application granted granted Critical
Publication of CN201351613Y publication Critical patent/CN201351613Y/en

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Abstract

The utility model relates to a displacement pump, which comprises a motor and a pump body; wherein, the pump body is provided with a water inlet passage, a water outlet passage and an operating chamber; a one-way valve is arranged in the water inlet passage; the front part of the operating chamber is provided with an end cover; a containing chamber is arranged inside the end cover; the edge of the containing chamber is provided with a flange; an annular partition is arranged in the operating chamber; a water inlet of the water inlet passage of the pump body and a water outlet of the water outlet passage are respectively positioned in front of the annular partition and behind the annular partition; a screw is arranged in the operating chamber; the tail of the screw is connected with the drive shaft of the motor; the front part of the screw, which is spiral, is contained in a screw sleeve; the screw sleeve is also provided with an axial screw hole matched with the front part of the screw, which is spiral; an annular lug boss is also arranged on the screw sleeve; a spring is arranged between the front side of the annular lug boss and the containing chamber; and the rear side of the annular lug boss is contacted with the front side of the annular partition. The utility model is characterized by simple structure, high pressure and stable operation performance.

Description

A kind of plunger pump
Technical field
The utility model relates to a kind of plunger pump, specifically is a kind of plunger pump.
Background technique
At present water pump mainly contains two kinds of blade type and plunger types, and the working method of plunger pump all be in the form of piston, and this plunger pump has the lift height, working pressure is stable, but structure complexity comparatively comparatively speaking, the cost of manufacturing is also higher relatively.
The model utility content
The purpose of this utility model is to provide a kind of plunger pump, this plunger pump adopt the screw type plunger with rotation mode work, have simple in structure, pressure is high, the characteristics of stable work in work.
This realizes above characteristics, the utility model by the following technical solutions:
A kind of plunger pump, comprise the motor and the pump housing, the pump housing is provided with intake tunnel, exhalant canal and working room, be provided with one-way valve in the intake tunnel, it is characterized in that: the front portion in the working room is provided with end cap, the end cap inboard is provided with holding cavity, the bead of holding cavity is provided with lug boss, have the water inlet on the lug boss, in the working room, be provided with the annular every, the water intake of pump housing intake tunnel and the water outlet of exhalant canal be separately positioned on the annular every front and rear, in the working room, be provided with screw rod, the afterbody of this screw rod is connected with motor driving shaft, the front portion of screw rod is contained in the screw rod cover, the front portion of screw rod is shape in the shape of a spiral, puts at screw rod and also has the axial screw that matches with the screw rod front portion, and described screw is shape in the shape of a spiral; Put at above-mentioned screw rod and also to be provided with an annular boss, be provided with a spring between the front portion of annular boss and holding cavity, the rear portion of annular boss contacts every the front portion with annular.
The utility model adopts screw rod and screw rod cover to form the workpiece of the pump housing, come the liquid of the pump housing is pressurizeed by the high speed rotating of screw rod at the screw rod cover, to reach the purpose of high pressure output, with respect to piston type plunger pump commonly used at present, the output of the utility model motor need not through other rotatable parts conversion, can play the simplification internal structure, avoid the loss in the power transmission process, therefore say the utlity model has simple in structure, pressure is high, the characteristics of stable work in work.
Description of drawings
Fig. 1, structural representation of the present utility model;
Fig. 2, STRUCTURE DECOMPOSITION schematic representation of the present utility model;
Fig. 3, the utility model partial structurtes schematic representation;
The structural representation of Fig. 4, the utility model end cap;
The structural representation of Fig. 5, the utility model pump housing part.
Embodiment
Shown in Fig. 1-5, a kind of plunger pump, comprise the motor 1 and the pump housing 2, the pump housing 2 is provided with intake tunnel 21, exhalant canal 22 and working room 23, be provided with one-way valve 24 in the intake tunnel 21,23 front portion is provided with end cap 3 in the working room, end cap 3 inboards are provided with holding cavity 31, the bead of holding cavity 31 is provided with lug boss 32, have water inlet 33 on the lug boss 32, be provided with annular every 25 in working room 23, the water intake 26 of the pump housing 2 intake tunnels 21 and the water outlet of exhalant canal 22 are separately positioned on annular every 25 front and rear, in working room 23, be provided with screw rod 4, the afterbody of this screw rod 4 is connected with motor 1 live axle, and the front portion of screw rod 4 is contained in the screw rod cover 5, and the front portion of screw rod 4 is shape in the shape of a spiral, also have the axial screw 51 that matches with the screw rod front portion on screw rod cover 5, described screw is shape in the shape of a spiral; Also be provided with an annular boss 52 on above-mentioned screw rod cover 5, be provided with a spring 6 between the front portion of annular boss 52 and holding cavity 31, the rear portion of annular boss 52 contacts every 25 front portions with annular.
Working procedure of the present utility model is such: liquid flows into the working room 23 of the pump housing 1 from water intake 26 through one-way valve 24 from intake tunnel 21, annular every 25 and screw rod cover 5 with working room's twenty percent cup and chamber, back two parts, liquid enters the cup that the pump housing 1 at first enters into working room 23, liquid in the cup flows into holding cavity 31 from the water inlet 33 on the lug boss 32 of holding cavity 31 beads, and enter into the screw 51 of screw rod cover, liquid in the screw 51 promotes by chamber behind working room 23 through screw rod 4 pressurizations, and the highly pressurised liquid after screw rod 4 pressurizations is sent the pump housing through exhalant canal 22; Also be provided with the air chamber and the pressure controlled valve that are communicated with exhalant canal on the pump housing 2, air chamber and pressure controlled valve be the pressure of control pump body running chamber automatically, plays the pressure protect effect.

Claims (1)

1, a kind of plunger pump, comprise the motor and the pump housing, the pump housing is provided with intake tunnel, exhalant canal and working room, be provided with one-way valve in the intake tunnel, it is characterized in that: the front portion in the working room is provided with end cap, the end cap inboard is provided with holding cavity, the bead of holding cavity is provided with lug boss, have the water inlet on the lug boss, in the working room, be provided with the annular every, the water intake of pump housing intake tunnel and the water outlet of exhalant canal be separately positioned on the annular every front and rear, in the working room, be provided with screw rod, the afterbody of this screw rod is connected with motor driving shaft, the front portion of screw rod is contained in the screw rod cover, the front portion of screw rod is shape in the shape of a spiral, puts at screw rod and also has the axial screw that matches with the screw rod front portion, and described screw is shape in the shape of a spiral; Put at above-mentioned screw rod and also to be provided with an annular boss, be provided with a spring between the front portion of annular boss and holding cavity, the rear portion of annular boss contacts every the front portion with annular.
CNU2008201712639U 2008-12-26 2008-12-26 Displacement pump CN201351613Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201712639U CN201351613Y (en) 2008-12-26 2008-12-26 Displacement pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201712639U CN201351613Y (en) 2008-12-26 2008-12-26 Displacement pump

Publications (1)

Publication Number Publication Date
CN201351613Y true CN201351613Y (en) 2009-11-25

Family

ID=41375000

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201712639U CN201351613Y (en) 2008-12-26 2008-12-26 Displacement pump

Country Status (1)

Country Link
CN (1) CN201351613Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434424A (en) * 2010-11-26 2012-05-02 胡传胜 Spiral rod oil distribution energy storage plunger pump

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102434424A (en) * 2010-11-26 2012-05-02 胡传胜 Spiral rod oil distribution energy storage plunger pump
CN102434424B (en) * 2010-11-26 2014-02-26 胡传胜 Spiral rod oil distribution energy storage plunger pump

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091125

Termination date: 20111226