CN206513547U - High-efficiency and energy-saving type plunger pump - Google Patents

High-efficiency and energy-saving type plunger pump Download PDF

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Publication number
CN206513547U
CN206513547U CN201720180277.6U CN201720180277U CN206513547U CN 206513547 U CN206513547 U CN 206513547U CN 201720180277 U CN201720180277 U CN 201720180277U CN 206513547 U CN206513547 U CN 206513547U
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check valve
efficiency
energy
operating room
saving type
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CN201720180277.6U
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Chinese (zh)
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罗昌国
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LUTIAN MACHINERY CO Ltd
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LUTIAN MACHINERY CO Ltd
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Abstract

A kind of high-efficiency and energy-saving type plunger pump, including cylinder body, operating room is provided with cylinder body, plunger is stretched into operating room, and operating room is connected with intake tunnel and exhalant canal, and intake tunnel is provided with internal check valve, exhalant canal is provided with outer check valve, internal check valve ensures fluid from intake tunnel to operating room's one-way flow, and outer check valve ensures fluid from operating room to exhalant canal one-way flow, and the spring force in internal check valve is more than the spring force in outer check valve.The utility model provides a kind of high-efficiency and energy-saving type plunger pump, inside and outside one-way valve spring is designed to different elastic force, the pressure difference that use environment difference is produced is compensate for, the sealing of the two is able to reach unanimously, so as to improve the efficiency of pump under equal machining accuracy.

Description

High-efficiency and energy-saving type plunger pump
Technical field
The utility model belongs to cleaning machine technical field, refers in particular to the high-efficiency and energy-saving type plunger pump in a kind of cleaning machine.
Background technology
Operationally, the pressure that outer check valve is born is discharge pressure (under normal operation) to the pump of cleaning machine, and interior Check valve is water suction check valve, and its pressure born is substantially that the half of outer check valve is also few;The tube wall power of valve block and valve seat Mainly have at 2 points, be some the elastic force of one-way valve spring (this point is especially embodied in the process that just water suction or water are not drunk up);Two It is the pressure of (strong) generation of hydraulic pressure.Check valve only is closed by one-way valve spring when cleaning machine or pump just begin to use, So as to produce unidirectional vacuum state;Inside and outside one-way valve spring is such as designed to identical elastic force, then due to the two use environment not With so as to the pressure difference produced, both sealing properties are inconsistent under equal machining accuracy, and causing the efficiency of pump reduces.
The content of the invention
The purpose of this utility model is to provide a kind of high-efficiency and energy-saving type plunger pump, and inside and outside one-way valve spring is designed into difference Elastic force, compensate for the pressure difference that use environment difference is produced, the sealing of the two is able to reach one under equal machining accuracy Cause, so as to improve the efficiency of pump.
What the purpose of this utility model was realized in:It is provided with a kind of high-efficiency and energy-saving type plunger pump, including cylinder body, cylinder body Operating room, plunger is stretched into operating room, and operating room is connected with intake tunnel and exhalant canal, and intake tunnel is provided with interior unidirectional Valve, exhalant canal is provided with outer check valve, and internal check valve ensures fluid from intake tunnel to operating room's one-way flow, outer check valve Ensure fluid from operating room to exhalant canal one-way flow, it is characterised in that:Spring force in internal check valve is more than outer unidirectional Spring force in valve.
It is preferred that, the concrete structure of the internal check valve and outer check valve is:Including unidirectional valve bonnet and one-way valve seat, unidirectionally Valve bonnet is fixed on one-way valve seat afterbody, and the end face that both coordinate is respectively equipped with back-off and fastened by the axial grafting of back-off;Unidirectionally Spring and check valve sheet are provided between valve bonnet and one-way valve seat, check valve sheet is compressed and covers going out in one-way valve seat afterbody by spring On the mouth of a river.
It is preferred that, the back-off structure is:One-way valve seat afterbody is raised provided with annular, and annular convex head is provided with outer Flange;The check valve capouch portion is provided with outer annular protrusion, and outer annular protrusion head is provided with in-flanges;Annular projection stretches into outer Annular protrusion endoporus, flanging and in-flanges are mutually twisted, and outer annular protrusion is pushed against one-way valve seat tail end face.
It is preferred that, the raised female coaxial with one-way valve seat of the annular, check valve sheet is resisted against annular punching shaft In the opening in portion.
It is preferred that, the opening of the annular convex head is provided with taper surface, and the check valve sheet periphery is provided with corresponding Taper surface.
It is preferred that, the one-way valve seat periphery is provided with the seal groove for being used for assembling sealing ring.
The utility model is prominent and beneficial compared with prior art to be had the technical effect that:
During pump work, its plunger drives by the eccentric rotary of pump shaft, moves back and forth;When being drawn outside plunger, chamber pressure Reduction, outer closed check valve, when the elastic force of internal check valve is less than the pressure of intake tunnel with work room pressure sum, interior list Opened to valve, improve internal check valve spring force, it is ensured that the vacuum of operating room;When being pushed away in plunger, work is pressure liter Height, internal check valve is closed, when chamber pressure is higher than outer one-way valve spring elastic force and exhalant canal pressure sum, outer check valve Open, liquid discharge.
As can be seen here, the pressure that outer check valve is born is discharge pressure, and internal check valve is water suction check valve, what it bore The outer check valve of pressure ratio is much less, and one-way valve spring elastic force is high outside the ratio that the elastic force of internal check valve spring is designed, then balances Use environment is different so that the pressure produced is different, and both sealing properties are able to enough consistent, raising under equal machining accuracy The efficiency of pump.
Brief description of the drawings
Fig. 1 is overall structure figure of the present utility model;
Fig. 2 is the partial enlarged drawing in Fig. 1;
Fig. 3 is the structure chart of check valve.
Reference:1st, cylinder body;2nd, operating room;3rd, plunger;4th, internal check valve;5th, outer check valve;6th, intake tunnel;7th, go out Aquaporin;8th, one-way valve seat;9th, unidirectional valve bonnet;10th, outer annular protrusion;11st, in-flanges;12nd, annular is raised;13rd, flanging; 14th, sealing ring;15th, seal groove;16th, delivery port;17th, check valve sheet;18th, spring.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings, referring to Fig. 1-3:
Operating room 2 is provided with a kind of high-efficiency and energy-saving type plunger pump, including cylinder body 1, cylinder body 1, plunger 3 is stretched into operating room 2, Operating room 2 is connected with intake tunnel 6 and exhalant canal 7, and intake tunnel 6 is provided with internal check valve 4, and exhalant canal 7 is provided with outer Check valve 5, internal check valve 4 ensures fluid from intake tunnel 6 to the one-way flow of operating room 2, and outer check valve 5 ensures fluid from work Room 2 is to the one-way flow of exhalant canal 7, and the elastic force of spring 18 in internal check valve 4 is more than the elastic force of spring 18 in outer check valve 5.
As shown in figure 3, the concrete structure of the internal check valve 4 and outer check valve 5 is:Including unidirectional valve bonnet 9 and check valve Seat 8, unidirectional valve bonnet 9 is fixed on the afterbody of one-way valve seat 8, and the end face that both coordinate is respectively equipped with back-off and by the axial grafting of back-off Fasten;Spring 18 and check valve sheet 17 are unidirectionally provided between valve bonnet 9 and one-way valve seat 8, spring 18 is by the friction top of check valve sheet 17 Close on the delivery port 16 of the afterbody of one-way valve seat 8.
Wherein, the back-off structure is:The afterbody of one-way valve seat 8 is provided with annular projection 12, and 12 heads of annular projection are set There is flanging 13;The head of unidirectional valve bonnet 9 is provided with outer annular protrusion 10, and the head of outer annular protrusion 10 is provided with in-flanges 11;It is interior Annular protrusion 12 stretches into the endoporus of outer annular protrusion 10, and flanging 13 and in-flanges 11 are mutually twisted, and outer annular protrusion 10 is pushed against The tail end face of one-way valve seat 8.
Wherein, the annular projection 12 and the female coaxial of one-way valve seat 8, it is raised that check valve sheet 17 is resisted against annular In the opening on 12 heads.
Wherein, the opening on raised 12 heads of the annular is provided with taper surface, and the periphery of check valve sheet 17 is provided with correspondence Taper surface.
Wherein, the periphery of one-way valve seat 8 is provided with the seal groove 15 for being used for assembling sealing ring 14.
Above-described embodiment is only preferred embodiment of the present utility model, and protection model of the present utility model is not limited according to this Enclose, therefore:All equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by protection of the present utility model Within the scope of.

Claims (6)

1. being provided with operating room (2) in a kind of high-efficiency and energy-saving type plunger pump, including cylinder body (1), cylinder body (1), plunger (3) stretches into work In room (2), operating room (2) are connected with intake tunnel (6) and exhalant canal (7), and intake tunnel (6) is provided with internal check valve (4), Exhalant canal (7) is provided with outer check valve (5), and internal check valve (4) ensures that fluid is unidirectional from intake tunnel (6) to operating room (2) Flowing, outer check valve (5) ensures fluid from operating room (2) to exhalant canal (7) one-way flow, it is characterised in that:Internal check valve (4) spring (18) elastic force in is more than spring (18) elastic force in outer check valve (5).
2. high-efficiency and energy-saving type plunger pump according to claim 1, it is characterised in that:The internal check valve (4) and outer unidirectional The concrete structure of valve (5) is:Including unidirectional valve bonnet (9) and one-way valve seat (8), unidirectional valve bonnet (9) is fixed on one-way valve seat (8) tail Portion, the end face that both coordinate is respectively equipped with back-off and fastened by the axial grafting of back-off;Unidirectional valve bonnet (9) and one-way valve seat (8) Between be provided with spring (18) and check valve sheet (17), spring (18) by check valve sheet (17) compression cover in one-way valve seat (8) tail On the delivery port (16) in portion.
3. high-efficiency and energy-saving type plunger pump according to claim 2, it is characterised in that:The back-off structure is:One-way valve seat (8) afterbody is raised (12) provided with annular, and annular projection (12) head is provided with flanging (13);Unidirectional valve bonnet (9) head Portion is provided with outer annular protrusion (10), and outer annular protrusion (10) head is provided with in-flanges (11);Annular projection (12) stretches into outer shroud Shape projection (10) endoporus, flanging (13) and in-flanges (11) are mutually twisted, and outer annular protrusion (10) is pushed against one-way valve seat (8) Tail end face.
4. high-efficiency and energy-saving type plunger pump according to claim 3, it is characterised in that:The annular raised (12) with it is unidirectional The female coaxial of valve seat (8), check valve sheet (17) is resisted against in the opening on raised (12) head of annular.
5. high-efficiency and energy-saving type plunger pump according to claim 4, it is characterised in that:Raised (12) head of the annular Opening is provided with taper surface, and check valve sheet (17) periphery is provided with corresponding taper surface.
6. high-efficiency and energy-saving type plunger pump according to claim 1, it is characterised in that:One-way valve seat (8) periphery is provided with Seal groove (15) for assembling sealing ring (14).
CN201720180277.6U 2017-02-27 2017-02-27 High-efficiency and energy-saving type plunger pump Active CN206513547U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720180277.6U CN206513547U (en) 2017-02-27 2017-02-27 High-efficiency and energy-saving type plunger pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720180277.6U CN206513547U (en) 2017-02-27 2017-02-27 High-efficiency and energy-saving type plunger pump

Publications (1)

Publication Number Publication Date
CN206513547U true CN206513547U (en) 2017-09-22

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Application Number Title Priority Date Filing Date
CN201720180277.6U Active CN206513547U (en) 2017-02-27 2017-02-27 High-efficiency and energy-saving type plunger pump

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110131154A (en) * 2019-05-21 2019-08-16 台州高知科技有限公司 Double containment check valve and plunger pump equipped with the valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110131154A (en) * 2019-05-21 2019-08-16 台州高知科技有限公司 Double containment check valve and plunger pump equipped with the valve

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