CN207212656U - Plunger pump - Google Patents
Plunger pump Download PDFInfo
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- CN207212656U CN207212656U CN201721188217.5U CN201721188217U CN207212656U CN 207212656 U CN207212656 U CN 207212656U CN 201721188217 U CN201721188217 U CN 201721188217U CN 207212656 U CN207212656 U CN 207212656U
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Abstract
The utility model discloses a kind of plunger pump, including pump head, the crankcase being fixedly connected with pump head, pump chamber is provided with pump head, pump chamber includes the intake chamber that current pass sequentially through, suck room, water-supplying chamber, the pressure modulating opening connected with water-supplying chamber is provided with pump head, pressure regulator valve is provided with pressure modulating opening, pressure regulator valve includes valve body, it is arranged on and is used for the core assembly for closing pressure modulating opening in valve body, core assembly includes the mounting seat being slidably arranged in valve body, the bonnet being slidably arranged in valve body, the spring being arranged between mounting seat and bonnet, it is provided with valve body for being abutted with mounting seat and then by the spacing gland in valve body of core assembly, the discharge opening for current in valve body to be discharged is provided with valve body, its drip irrigation device is the hydraulic pressure in the adjustable pump chamber of the plunger pump.The plunger pump is three-cylinder plunger pump, and it has the advantages that high rated pressure, compact-sized, efficiency high, flow are big.
Description
Technical field
Water pump technology is the utility model is related to, more particularly to a kind of plunger pump.
Background technology
Important device during plunger pump in hydraulic system, it is moved back and forth by plunger in cylinder body, makes sealing
Volume changes to realize water suction, pressure water.Plunger pump has high rated pressure, compact-sized, efficiency high and Flow-rate adjustment side
Just the advantages that, it is widely used in the occasion that high pressure, big flow and flow need to adjust.
Existing notification number is that CN2406079Y Chinese patent discloses a kind of reciprocating pump, including the pump housing, pump head, song
Axle, connecting rod, plunger, water inlet, delivery port, the pump housing connect pump head, pump chamber are provided with pump head, are provided with pump head and pump chamber connects
The logical water inlet for being used to intake and the delivery port for water outlet, plug portion are located in pump chamber, and connecting rod one end is hinged with bent axle,
The other end is hinged with plunger, and crank rotation can drive plunger to be moved back and forth in pump chamber, so as to by water suction pump intracavitary, then high pressure
Sprayed from water outlet.
In actual use, typically the reciprocating pump is arranged in pipeline, when the hypertonia in pipeline
When, water pipe can be caused to burst, there is potential safety hazard.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of plunger pump, the plunger pump can
The pressure in pipeline is adjusted, the hypertonia in pipeline can be prevented to a certain extent and cause water pipe to burst.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of plunger pump, including
Pump head, the casing being fixedly connected with pump head, are provided with pump chamber in the pump head, and what the pump chamber included that water supply stream passes sequentially through enters
Hydroecium, room, water-supplying chamber are sucked, the water inlet connected with intake chamber and the water outlet connected with water-supplying chamber are provided with the pump head
Mouthful, the indoor sliding of suction is connected with plunger, is provided with the casing for driving plunger reciprocal in the indoor carry out of suction
The drive mechanism of motion, the pressure modulating opening connected with water-supplying chamber is provided with the pump head, pressure regulator valve is provided with the pressure modulating opening,
The pressure regulator valve includes valve body, is arranged in valve body for the core assembly for closing pressure modulating opening, and the core assembly includes sliding
The mounting seat that is arranged in valve body, the bonnet being slidably arranged in valve body, the spring being arranged between mounting seat and bonnet, it is described
It is provided with valve body for being abutted with mounting seat and then by the spacing gland in valve body of core assembly, is provided with the valve body
The discharge opening for the current discharge that will go into valve body.
Pass through above-mentioned technical proposal, the spring of setting cause bonnet to have the trend moved to pump head direction, and spring is by valve
Cap is pressed on pressure modulating opening, so as to which pressure modulating opening be closed.When the hydraulic pressure in pump chamber reaches certain numerical value, water under high pressure is to bonnet
Pressure be more than spring to the pressure of bonnet, water under high pressure can promote bonnet to away from pressure modulating opening direction so that bonnet and pressure modulating opening
Separate, the current in pump chamber can be expelled to outside pump head, so as to reduce pump chamber after pressure modulating opening is entered in valve body from discharge opening
Interior hydraulic pressure.When the hydraulic pressure in pump chamber is reduced to spring to the pressure of bonnet, spring can promote bonnet to seal pressure modulating opening again
Close.The keying to pressure modulating opening is realized using the cooperation of spring and bonnet, you can realize the regulation to hydraulic pressure in pump chamber, and work as and be somebody's turn to do
When plunger pump is connected in pipeline, the plunger pump can adjust the hydraulic pressure in pipeline, can prevent the pressure in pipeline to a certain extent
Power is too high and causes water pipe to burst.
Preferably, the mounting seat is provided with the first locating rod on the end face of bonnet, and the bonnet is close to mounting seat
End face on be provided with the second locating rod, the spring one end is set in the first locating rod, and the other end is set in the second positioning
On bar.
Pass through above-mentioned technical proposal, the first locating rod and the second locating rod of setting can play certain guiding to spring
Effect, during spring is by compression and reset, the first locating rod and the second locating rod of setting can prevent to a certain extent
Only spring is bent, in order to avoid influence the normal work of core assembly.
Preferably, the valve body is hollow cylinder, and the pressure modulating opening is located at one end that valve body connects with water-supplying chamber, institute
State discharge opening to be located on body wall, the gland is threaded on end of the valve body away from pressure modulating opening.
Pass through above-mentioned technical proposal, gland are threaded on valve body, are used and are threadedly coupled between gland and valve body so that
Gland can be firmly installed on valve body, and because gland abuts with end face of the mounting seat away from bonnet, then gland can be by valve element group
Part is spacing in valve body.
Preferably, the center of the gland is equipped with the adjusting screw rod abutted with mounting seat, the adjusting screw rod and gland
Threaded connection.
Pass through above-mentioned technical proposal, spring are arranged between mounting seat and bonnet, and bonnet abuts with pressure modulating opening, are rotated and are adjusted
Section screw rod promotes mounting seat to be moved to close to pressure modulating opening direction so that spring is compressed, so as to control elasticity of the spring to bonnet
Pressure, reach the purpose of the setting pressure of regulation regulating valve.
Preferably, it is provided with boss on the valve interior wall, the boss is threaded with sealing shroud, on the sealing shroud
Offer the limbers passed through for the stream that supplies water.
Pass through above-mentioned technical proposal, sealing shroud are threaded on boss, detachable between sealing shroud and boss, in order to
Sealing shroud is repaired and changed.When spring promotes bonnet closing limbers, bonnet is applied with pressure to sealing shroud, sealing
Set is threadedly coupled with boss so that sealing shroud will not be moved by promoting in valve body.After current in pump chamber are by limbers
It could be gone out from pressure modulating opening, bonnet need to only seal whether the i.e. controllable current in limbers flow out from pressure modulating opening, and need not pass through valve
The mode that cap side wall is brought into close contact with body wall, it is tight with body wall by bonnet side wall to ensure the sealing of pressure regulator valve
The mode of closely connected conjunction seals pressure modulating opening, and the frictional force between bonnet and body wall is larger, when bonnet moves in valve body
It is more inconvenient, and need to often rub against between bonnet and subtube inwall, the abrasion of bonnet is accelerated, reduces making for bonnet
With the life-span, and after bonnet is worn, the sealing between bonnet and subtube can be deteriorated.
Preferably, oriented remote limbers direction extension is set on lateral wall of the sealing shroud away from pressure modulating opening one end
Flange, the flange abut towards the end face of boss with the end face of boss towards flange.
Pass through above-mentioned technical proposal, when sealing shroud is arranged in valve body, flange is remote close to the end wall and boss of pressure modulating opening
End wall from pressure modulating opening is bonded, so as to prevent sealing shroud from being moved to close to pressure modulating opening direction to a certain extent.
Preferably, the flange side wall offers seal groove, and sealing ring is provided with the seal groove.
Pass through above-mentioned technical proposal, when sealing shroud is arranged in valve body, sealing ring is bonded with valve interior wall, can be certain
Prevent the faying face of current from sealing shroud and valve body in pump chamber from entering in valve body in degree.
Preferably, the sealing shroud is towards offering neck on the end face of bonnet, and the bonnet is towards the end face of sealing shroud
On be provided with neck coordinate fixture block, the fixture block is quality of rubber materials.
Pass through above-mentioned technical proposal, when bonnet is pressed on sealing shroud by spring, fixture block can be embedded into neck, fixture block with
The cooperation of neck so that bonnet preferably can coordinate with sealing shroud, and bonnet more accurately can close limbers, and
Fixture block is quality of rubber materials, sealing that can further between poppet caps and sealing shroud.
Preferably, the section of the fixture block and neck is trapezoidal, and the small head end of fixture block and neck is towards pressure modulating opening.
Pass through above-mentioned technical proposal, when bonnet will close encapsulation set when, if fixture block is not perfectly aligned with neck, block
Block can be embedded into neck under the guide effect on two trapezoidal inclined-planes, and bonnet easily can be combined together with sealing shroud.
In summary, the utility model having the beneficial effect that in contrast to prior art：The plunger pump can adjust in pump chamber
Hydraulic pressure, when the hydraulic pressure in pump chamber is excessive, current can be expelled to outside pump head from discharge opening, so as to reduce the hydraulic pressure in pump chamber.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment；
Fig. 2 is the sectional view of embodiment, the internal structure of main prominent plunger pump；
Fig. 3 is the sectional view of sealing shroud in embodiment, the concrete structure of main prominent sealing shroud；
Fig. 4 is the enlarged drawing at A in Fig. 2, the concrete structure of main prominent seal groove and sealing ring.
Reference：1st, pump head；2nd, casing；3rd, pump chamber；31st, intake chamber；32nd, room is sucked；33rd, water-supplying chamber；4th, water inlet；
5th, delivery port；6th, plunger；7th, drive mechanism；71st, bent axle；72nd, connecting rod；8th, pressure modulating opening；9th, pressure regulator valve；91st, valve body；92nd, valve element
Component；921st, mounting seat；922nd, bonnet；923rd, spring；10th, gland；11st, discharge opening；12nd, boss；13rd, sealing shroud；14th, water flowing
Hole；15th, flange；16th, seal groove；17th, sealing ring；18th, the first locating rod；19th, the second locating rod；20th, neck；21st, fixture block；
22nd, screwed hole；23rd, adjusting screw rod；24th, handwheel；25th, the first check valve；26th, the second check valve.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
As illustrated in fig. 1 and 2, a kind of plunger pump, including pump head 1, the casing 2 that is fixedly connected with pump head 1, set in pump head 1
There is a pump chamber 3, pump chamber 3 includes the intake chamber 31 that water supply stream passes sequentially through, suction room 32, water-supplying chamber 33, is provided with and enters on pump head 1
The water inlet 4 and the delivery port 5 that is connected with water-supplying chamber 33 that hydroecium 31 connects, it is provided with intake chamber 31 so that current are only from entering
Hydroecium 31 enters the first check valve 25 sucked in room 32, is provided with water-supplying chamber 33 so that current only enter from suction room 32
Enter the second check valve 26 to water-supplying chamber 33.
As shown in Fig. 2 sliding is connected with plunger 6 in suction room 32, it is provided with casing 2 for driving plunger 6 sucking
The drive mechanism 7 to be moved back and forth in room 32, drive mechanism 7 include be arranged in casing 2 bent axle 71, be rotatably connected on song
Connecting rod 72 on axle 71, the one end of connecting rod 72 away from bent axle 71 are rotatablely connected with plunger 6.
When drive mechanism 7 drives plunger 6 sucking in room 32 to appearance when being moved close to the direction of casing 2, sucked in room 32
Product becomes big, and suction room 32 is changed into negative pressure, and the liquid mediums such as water are pressed into pump chamber 3 by atmospheric pressure, and current enter from water inlet 4
In intake chamber 31, the current in intake chamber 31 when flow direction sucks room 32, open, and the second check valve 26 closes by the first check valve 25
Close, current are entered in suction room 32, and then drive mechanism 7 drives plunger 6 to be moved in suction room 32 to away from the direction of casing 2
When, the first check valve 25 is closed, and the second check valve 26 is opened, and plunger 6 will be sucked in the current press-in water-supplying chamber 33 in room 32, most
Current are outside the excavationg pump of delivery port 5 afterwards.
As illustrated in fig. 1 and 2, pressure modulating opening 8 is provided with pump head 1, pressure modulating opening 8 connects with water-supplying chamber 33, is set on pressure modulating opening 8
There is pressure regulator valve 9, pressure regulator valve 9 includes valve body 91, is arranged on the core assembly 92 that valve body 91 is used to close pressure modulating opening 8.
Valve body 91 is hollow cylinder, and pressure modulating opening 8 is located at one end that valve body 91 connects with water-supplying chamber 33, and valve body 91 is remote
Be provided with one end of pressure modulating opening 8 for by core assembly 92 it is spacing valve body 91 gland 10, set in the side wall of valve body 91
There is the discharge opening 11 for will go into the discharge of the current in valve body 91.
As shown in Fig. 2 be provided with boss 12 on the inwall of valve body 91, boss 12 for hollow cylinder and with the inwall of valve body 91
It is fixedly connected, boss 12 is threaded with sealing shroud 13, and sealing shroud 13 is hollow cylinder, and sealing shroud 13 is located at pressure modulating opening 8
Top, the hollow space of sealing shroud 13 is limbers 14, and the section of limbers 14 is circle.
As shown in Figures 2 and 3, it is provided with along away from the direction of limbers 14 and prolongs on lateral wall of the sealing shroud 13 away from pressure modulating opening 8
The flange 15 stretched, flange 15 is that integral type is connected with sealing shroud 13, when sealing shroud 13 is arranged in valve body 91, the direction of flange 15
The end face of pressure modulating opening 8 abuts with the end face of boss 12 towards flange 15, so as to prevent to a certain extent sealing shroud 13 to by
The nearly direction of pressure modulating opening 8 motion.
As shown in Figures 2 and 4, a circle seal groove 16, seal groove 16 are offered along the circumference of flange 15 in the side wall of flange 15
Section for annular.Sealing ring 17 is embedded with seal groove 16, when sealing shroud 13 is arranged in valve body 91, sealing ring 17 and valve
The inwall of body 91 is bonded, and can prevent the faying face of current from sealing shroud 13 and valve body 91 in pump chamber 3 from entering to a certain extent
In valve body 91.
As shown in Fig. 2 core assembly 92 include be slidably arranged in valve body 91 mounting seat 921, be slidably arranged in valve body
Bonnet 922 in 91, the spring 923 being arranged between mounting seat 921 and bonnet 922, mounting seat 921 is cylindric, mounting seat
921 side wall is bonded with the inwall of valve body 91, and bonnet 922 includes a cylinder, integral type is connected to cylinder close to pressure regulation
Hemisphere on 8 end faces of mouth, the side wall of bonnet 922 are bonded with the inwall of valve body 91, and mounting seat 921 is close to the end face of bonnet 922
On be provided with the first locating rod 18, bonnet 922 is provided with the second locating rod 19, spring 923 1 on the end face of mounting seat 921
End is set in the first locating rod 18, and the other end is set in the second locating rod 19, and bonnet 922 can be pressed on close by spring 923
On big envelope 13 so that bonnet 922 closes limbers 14.
As shown in Figures 2 and 3, for sealing shroud 13 towards neck 20 is offered on the end face of bonnet 922, neck 20 is provided with one
Circle, the section of neck 20 be the small head end of trapezoidal, trapezoidal neck 20 towards pressure modulating opening 8, bonnet 922 is close to the end of sealing shroud 13
Fixture block 21 is provided with face, fixture block 21 is annular and is to be fixedly connected between fixture block 21 and bonnet 922, and the section of fixture block 21 is ladder
Shape, for the small head end of trapezoidal fixture block 21 towards pressure modulating opening 8, the material of fixture block 21 is rubber.
When bonnet 922 is pressed on sealing shroud 13 by spring 923, fixture block 21 can be embedded into neck 20, fixture block 21 and card
The cooperation of groove 20 so that bonnet 922 preferably can coordinate with sealing shroud 13, and bonnet 922 can be more accurately by limbers
14 closings, and fixture block 21 is quality of rubber materials, sealing that can further between poppet caps 922 and sealing shroud 13.
When bonnet 922 will close encapsulation set 13 when, if fixture block 21 is not perfectly aligned with neck 20, fixture block 21 understand exist
It is embedded under the guide effect on two trapezoidal inclined-planes in neck 20, bonnet 922 easily can be combined together with sealing shroud 13.
As shown in Fig. 2 gland 10 is threaded on valve body 91, the inwall of gland 10 abuts with mounting seat 921, gland 10
Center offer a screwed hole 22, screwed hole 22 is circular and set through gland 10, is equipped with screwed hole 22 and spiral shell
The adjusting screw rod 23 that pit 22 is threadedly coupled, adjusting screw rod 23 pass through screwed hole 22 and and mounting seat close to one end of valve body 91
921 abut, and the one end of adjusting screw rod 23 away from valve body 91 is provided with the handwheel 24 that adjusting screw rod 23 is rotated for convenient use person.
Spring 923 is arranged between mounting seat 921 and bonnet 922, and bonnet 922 abuts with sealing shroud 13, rotates regulation
Screw rod 23 promotes mounting seat 921 to be moved to close to the direction of pressure modulating opening 8 so that spring 923 is compressed, and then controls spring 923 right
The elastic pressure of bonnet 922, reach the purpose of the setting pressure of regulation regulating valve.
When the hydraulic pressure in pump chamber 3 reaches certain numerical value, water under high pressure is more than spring 923 to valve to the pressure of bonnet 922
The pressure of cap 922, water under high pressure can promote bonnet 922 to away from the direction of pressure modulating opening 8 so that bonnet 922 separates with pressure modulating opening 8, pump
Then current in chamber 3 are expelled to outside pump head 1, so as to reduce pump after pressure modulating opening 8 is entered in valve body 91 from discharge opening 11
Hydraulic pressure in chamber 3.
When the hydraulic pressure in pump chamber 3 is reduced to spring 923 to the pressure of bonnet 922, spring 923 can promote bonnet again
922 close pressure modulating opening 8, the keying to pressure modulating opening 8 are realized using the cooperation of spring 923 and bonnet 922, you can realize to pump chamber
The regulation of hydraulic pressure, simple and practical in 3.
The plunger pump is three-cylinder plunger pump, and it has the advantages that high rated pressure, compact-sized, efficiency high, flow are big.
Described above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model
Enclose, the scope of protection of the utility model is determined by appended claim.
Claims (9)
1. a kind of plunger pump, including pump head (1), the casing (2) that is fixedly connected with pump head (1), pump is provided with the pump head (1)
Chamber (3), the pump chamber (3) include water supply stream pass sequentially through intake chamber (31), suction room (32), water-supplying chamber (33), the pump
The water inlet (4) connected with intake chamber (31) and the delivery port (5) connected with water-supplying chamber (33), the suction are provided with head (1)
(32) interior sliding of entering the room is connected with plunger (6), is provided with the casing (2) for driving plunger (6) interior in suction room (32)
The drive mechanism (7) to move back and forth, it is characterized in that：The pressure regulation connected with water-supplying chamber (33) is provided with the pump head (1)
Mouthful (8), pressure regulator valve (9) are provided with the pressure modulating opening (8), the pressure regulator valve (9) includes valve body (91), is arranged on valve body (91)
The interior core assembly (92) for being used to close pressure modulating opening (8), the core assembly (92) include being slidably arranged in valve body (91)
Mounting seat (921), the bonnet (922) being slidably arranged in valve body (91), it is arranged between mounting seat (921) and bonnet (922)
Spring (923), be provided with the valve body (91) for abutted with mounting seat (921) so that by core assembly (92) it is spacing
Gland (10) in valve body (91), it is provided with the valve body (91) for will go into letting out for the discharge of the current in valve body (91)
The mouth of a river (11).
2. plunger pump according to claim 1, it is characterized in that：The mounting seat (921) is on the end face of bonnet (922)
The first locating rod (18) is provided with, the bonnet (922) is provided with the second locating rod on the end face of mounting seat (921)
(19), described spring (923) one end is set in the first locating rod (18), and the other end is set in the second locating rod (19).
3. plunger pump according to claim 1, it is characterized in that：The valve body (91) is hollow cylinder, the pressure regulation
Mouth (8) is located at one end that valve body (91) connects with water-supplying chamber (33), and the discharge opening (11) is located in valve body (91) side wall, described
Gland (10) is threaded on end of the valve body (91) away from pressure modulating opening (8).
4. plunger pump according to claim 3, it is characterized in that：The center of the gland (10) is equipped with and mounting seat
(921) adjusting screw rod (23) abutted, the adjusting screw rod (23) are threadedly coupled with gland (10).
5. plunger pump according to claim 3, it is characterized in that：Boss (12), institute are provided with valve body (91) inwall
State boss (12) and be threaded with sealing shroud (13), the limbers passed through for the stream that supplies water is offered on the sealing shroud (13)
(14)。
6. plunger pump according to claim 5, it is characterized in that：The sealing shroud (13) is outer away from pressure modulating opening (8) one end
The flange (15) of oriented remote limbers (14) direction extension, end face of the flange (15) towards boss (12) are set in side wall
Abutted with the end face of boss (12) towards flange (15).
7. plunger pump according to claim 6, it is characterized in that：Flange (15) side wall offers seal groove (16), institute
State and sealing ring (17) is provided with seal groove (16).
8. plunger pump according to claim 5, it is characterized in that：The sealing shroud (13) is towards on the end face of bonnet (922)
Offer neck (20), the bonnet (922) is towards being provided with the fixture block that coordinates with neck (20) on the end face of sealing shroud (13)
(21), the fixture block (21) is quality of rubber materials.
9. plunger pump according to claim 8, it is characterized in that：The fixture block (21) and the section of neck (20) are ladder
Shape, the small head end of fixture block (21) and neck (20) is towards pressure modulating opening (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721188217.5U CN207212656U (en) | 2017-09-15 | 2017-09-15 | Plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721188217.5U CN207212656U (en) | 2017-09-15 | 2017-09-15 | Plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212656U true CN207212656U (en) | 2018-04-10 |
Family
ID=61825206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721188217.5U Active CN207212656U (en) | 2017-09-15 | 2017-09-15 | Plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263707A (en) * | 2022-07-13 | 2022-11-01 | 德帕姆(杭州)泵业科技有限公司 | Backflow type leakage-free plunger metering pump |
-
2017
- 2017-09-15 CN CN201721188217.5U patent/CN207212656U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263707A (en) * | 2022-07-13 | 2022-11-01 | 德帕姆(杭州)泵业科技有限公司 | Backflow type leakage-free plunger metering pump |
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