CN210799253U - Vertical distributed plunger pump assembly and cleaning machine - Google Patents

Vertical distributed plunger pump assembly and cleaning machine Download PDF

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Publication number
CN210799253U
CN210799253U CN201920874437.6U CN201920874437U CN210799253U CN 210799253 U CN210799253 U CN 210799253U CN 201920874437 U CN201920874437 U CN 201920874437U CN 210799253 U CN210799253 U CN 210799253U
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channel
water inlet
cavity
plunger
water
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CN201920874437.6U
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Chinese (zh)
Inventor
刘楷
范宝才
吴志永
林有余
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Jiangsu Sumec Hardware and Tools Co Ltd
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Jiangsu Sumec Hardware and Tools Co Ltd
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Abstract

The utility model discloses a perpendicular distributing type plunger pump assembly and cleaning machine, perpendicular distributing type plunger pump assembly includes: a motor having a main shaft that outputs torque; the eccentric mechanism eccentrically rotates under the action of torque; and a plunger pump unit having a plunger cavity and a plunger; the eccentric mechanism drives the plunger to reciprocate in the plunger cavity along a first direction; at least one end part of the plunger is in dynamic sealing connection with the corresponding end part of the plunger cavity so as to form a cavity; the containing cavity is communicated with a water inlet cavity and a water outlet cavity; the water inlet cavity and the water outlet cavity extend along a second direction; a water inlet one-way valve is arranged in the water inlet cavity, and a water outlet one-way valve is arranged in the water outlet cavity; the first direction is perpendicular to the center line of the main shaft, and the second direction is perpendicular to the first direction. The utility model has the characteristics of compact structure, self-priming ability are strong.

Description

Vertical distributed plunger pump assembly and cleaning machine
Technical Field
The invention belongs to the technical field of handheld cleaning machines, and particularly relates to a vertical distributed plunger pump assembly and a cleaning machine.
Background
The high-pressure cleaning machine is a device which uses water or mixed liquid added with a cleaning agent as a cleaning medium and utilizes high-pressure water flow to clean the surface of an object, the high-pressure cleaning machine can be used for cleaning automobiles, courtyards, the ground, railings, doors and windows and the like, the use is more efficient and convenient, the high-pressure cleaning machine mainly comprises a spray gun and a host, the host comprises a motor, a pump, a battery or an external power line, the spray gun is connected with the host through a water pipe, the spray gun is used for forming water flows with different shapes according to actual needs, the host is used for converting the water into the high-pressure water flow from municipal tap water or a water bucket and conveying the high-pressure water flow to the spray gun, the host is usually fixedly placed or movably placed on the ground, the host has larger volume and heavier weight, the use process.
Patent application number is 201611040689.6, the patent application of patent name "pump unit and hand-held type high pressure cleaner", discloses a pump unit and hand-held type high pressure cleaner, structural business turn over water check valve combination plunger parallel layout, business turn over water needs a fabrication hole intercommunication water route, causes the residual volume big on the left side, from the problem that the suction capacity is not enough, has the too big problem of running noise simultaneously.
Patent application number 200620139669.X also discloses a double-cylinder plunger pump with parallel arranged combined plungers of water inlet and outlet one-way valves, and a longer end channel exists between water inlet and outlet branch channels, so that the problems of larger residual volume and insufficient self-priming capacity are caused.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a vertical distributed plunger pump assembly and a cleaning machine, which have the characteristics of compact structure and strong self-absorption capacity.
In order to solve the problems of the prior art, the invention discloses a vertical distributed plunger pump assembly, which comprises:
a motor having a main shaft that outputs torque;
the eccentric mechanism eccentrically rotates under the action of torque; and
a plunger pump unit having a plunger cavity and a plunger;
the eccentric mechanism drives the plunger to reciprocate in the plunger cavity along a first direction; at least one end part of the plunger is in dynamic sealing connection with the corresponding end part of the plunger cavity so as to form a cavity; the containing cavity is communicated with a water inlet cavity and a water outlet cavity; the water inlet cavity and the water outlet cavity extend along a second direction; a water inlet one-way valve is arranged in the water inlet cavity, and a water outlet one-way valve is arranged in the water outlet cavity;
the first direction is perpendicular to the center line of the main shaft, and the second direction is perpendicular to the first direction.
Further, the air conditioner is provided with a fan,
the plunger pump unit is also provided with a water inlet branch passage, a water outlet branch passage, a water inlet main passage and a water outlet main passage; the water inlet branch channel is communicated with the water inlet cavity, and the water outlet branch channel is communicated with the water outlet cavity; the water inlet sub-channel and the water outlet sub-channel extend along a first direction; the water inlet main channel and the water outlet main channel extend along the second direction, the water inlet main channel is communicated with the water inlet branch channel, and the water outlet main channel is communicated with the water outlet branch channel.
Further, the air conditioner is provided with a fan,
further comprising:
the water inlet joint is provided with a water inlet channel; and
the water outlet joint is provided with a water outlet channel;
the water inlet channel of the water inlet joint is communicated with the water inlet main channel, and the water outlet channel of the water outlet joint is communicated with the water outlet main channel.
Further, the air conditioner is provided with a fan,
the water outlet joint is also provided with a connecting water channel and an overflow water channel, one end of the connecting water channel is communicated with the water inlet channel of the water inlet joint, and the other end of the connecting water channel is communicated with the water inlet main channel;
the water outlet channel is communicated with the water inlet channel through an overflow water channel, and a one-way valve is arranged at the overflow water channel.
Further, the air conditioner is provided with a fan,
and a water drainage groove is arranged at one end of the water inlet joint communicated with the connecting water channel of the water outlet joint.
Further, the air conditioner is provided with a fan,
two ends of the plunger are respectively in dynamic sealing connection with the corresponding ends of the plunger cavity so as to form two containing cavities; each cavity is filled with water through one water inlet cavity and is drained through one water outlet cavity.
Further, the air conditioner is provided with a fan,
the plunger piston is in dynamic sealing connection with the wall of the plunger piston cavity through the sealing ring, and the parting line of the sealing ring is not in contact with the outer circular surface of the plunger piston.
Further, the air conditioner is provided with a fan,
the eccentric mechanism is provided with a rotating part and a wheel eccentrically arranged on the rotating part, and the plunger is provided with an installation part for installing the wheel.
Further, the air conditioner is provided with a fan,
the planetary reducer comprises a sun wheel, a planet wheel and an inner gear ring, the sun wheel is arranged on the main shaft, the inner side of the planet wheel is meshed with the sun wheel, the outer side of the planet wheel is meshed with the inner gear ring, and the eccentric mechanism is connected with the planet wheel.
The invention also discloses a cleaning machine which comprises the vertical distributed plunger pump assembly.
The invention has the following beneficial effects:
1. in the invention, the water inlet cavity and the water outlet cavity are vertical to the moving direction of the plunger, and when the plunger moves to the farthest end of the deflection center, a relatively small cavity is formed between the end part of the plunger and the end part of the plunger cavity; when the plunger operates to the farthest end and starts to absorb water, the residual air in the cavity is less, the air expansion is less, and the self-absorption capacity of the pump is greatly improved; meanwhile, the other benefit brought by the layout is that the structure of the pump is more compact, no additional process hole is needed for communication, and the manufacturing cost is reduced.
2. According to the invention, the seal ring adopts a 45-degree parting design, under the working condition of dynamic sealing, the friction position of a conventional 180-degree parting seal ring product is on a mold closing line when the seal ring product is rubbed with the outer circular surface of the plunger, the sealing performance is reduced after long-time abrasion, after the mold closing line is changed into 45-degree parting, the friction position of the seal ring and the plunger is not on the mold closing line of the seal ring, and the service life is obviously prolonged.
3. According to the invention, the water inlet joint is provided with the water drainage groove, so that water flow can be directly shunted between the outer ring of the spring and the water inlet joint and enters the connecting water channel of the water outlet joint after flowing in from the water inlet joint, the resistance is smaller, and the self-priming efficiency of the machine is higher.
Drawings
FIG. 1 is a perspective view of the construction of a vertically distributed plunger pump assembly of the present invention;
FIG. 2 is an exploded view of the structure of the vertical distributed plunger pump assembly of the present invention;
FIG. 3 is a front view of the structure of the vertically distributed plunger pump assembly of the present invention;
FIG. 4 is a sectional view of the structure taken along line A-A of FIG. 3;
FIG. 5 is a top view of the structure of the vertical distributed plunger pump assembly of the present invention;
FIG. 6 is a sectional view of the structure taken along line B-B of FIG. 5;
FIG. 7 is a sectional view of the structure taken along line C-C of FIG. 5;
fig. 8 is a sectional view of the structure taken along the direction D-D in fig. 5.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 8, the improvement point of the present invention mainly lies in a motor pump unit in a washing machine, i.e. a vertical distributed plunger pump assembly is provided, which comprises a motor 1, a planetary reducer 2 and a plunger pump unit 3.
The motor 1 can be powered by a rechargeable battery or a commercial power. The motor 1 outputs torque through the main shaft 19. The torque is amplified by the planetary reducer 2 and then acts on an eccentric mechanism of the plunger pump unit 3 so as to drive the plunger 4 to reciprocate to realize self-suction and water pumping.
The plunger pump unit 3 has a plunger chamber and a plunger 4. The eccentric mechanism drives the plunger 4 to reciprocate in the plunger cavity along a first direction; two ends of the plunger 4 are respectively in dynamic sealing connection with the corresponding ends of the plunger cavity so as to form two containing cavities 35; each cavity 35 is communicated with an inlet cavity 31 and an outlet cavity 32; the inlet chamber 31 and the outlet chamber 32 both extend in the second direction; a water inlet one-way valve 8 is arranged in the water inlet cavity 31, and a water outlet one-way valve 7 is arranged in the water outlet cavity 32; the first direction is perpendicular to the centre line of the spindle 19 and the second direction is perpendicular to the first direction. The plunger pump unit 3 also has a water inlet branch passage 42, a water outlet branch passage 43, a water inlet main passage 20 and a water outlet main passage 6. Because the number of the accommodating cavities 35 is two, the number of the water inlet cavities 31 and the number of the water outlet cavities 32 are two, two ends of the water inlet branch passage 42 are respectively communicated with one water inlet cavity 31, and two ends of the water outlet branch passage 43 are respectively communicated with one water outlet cavity 32; the water inlet subchannel 42 and the water outlet subchannel 43 both extend along a first direction; the water inlet main channel 20 and the water outlet main channel 6 both extend along the second direction, the water inlet main channel 20 is communicated with the water inlet sub-channel 42, and the water outlet main channel 6 is communicated with the water outlet sub-channel 43.
The plunger pump unit 3 further comprises a pump housing on which the plunger chambers are formed, which for ease of processing and mounting comprises a main pump body 12 and two sub-pump bodies 5, whereby the plunger chambers are also formed jointly by the cavities on the main pump body 12 and the sub-pump bodies 5, respectively, for the movement of the plungers 4. The sub-pump bodies 5 are symmetrically arranged on both sides of the main pump body 12, and the main pump body 12 is connected to the planetary reduction gear 2 and accommodates the eccentric mechanism. Each sub-pump body 5 is provided with a cavity, a water inlet cavity 31 and a water outlet cavity 32, the inner end of the water inlet cavity 31 and the inner end of the water outlet cavity 32 are communicated with the cavity, and the end part of the plunger 4 forms a cavity 35 when moving in the cavity. The water inlet check valve 8 is fixed in the water inlet cavity 31 and close to the cavity 35 through the plug 30, and the water outlet check valve 7 is fixed in the water outlet cavity 31 and close to the cavity 35 through the plug 30, so that the minimum residual volume is ensured. The plugs 30 are each axially fixed by a bolt 41.
Each sub-pump body 5 is also provided with a first flow passage 28 which is vertically communicated with the water inlet cavity 31 and a second flow passage 29 which is vertically communicated with the water outlet cavity 32. Similarly, the main pump body 12 is provided with a third flow passage 34 and a fourth flow passage 33 which penetrate through both end surfaces of the main pump body 12. The third flow channel 34 is connected at its two ends to the first flow channel 28 to form inlet branches 42, so that the water flows into the two inlet cavities 31. The two ends of the flow channel four 33 are respectively connected with the flow channel two 29 to form a water outlet branch channel 43, so that the water flow is collected and discharged from the two water outlet cavities 32. The main pump body 12 is also provided with a main water inlet channel 20 which is vertically communicated with a third flow channel 34 and a main water outlet channel 6 which is vertically communicated with a fourth flow channel 33. When the main pump body 12 and the branch pump body 5 are connected, the sealing problem needs to be considered, the side sealing mode is adopted to replace the existing end face sealing mode, specifically, the end parts of the first flow passage 28 and the second flow passage 29 protrude out of the end face of the branch pump body 5 along the extending direction to form an inserting part, and correspondingly, the end parts of the third flow passage 34 and the fourth flow passage 33 of the main pump body 12 are inwards sunken to form a receiving part. The sub-pump body 5 is connected to the main pump body 12 by screws, and the insertion portion of the sub-pump body 5 is inserted into the receiving portion of the main pump body 12, and the outer peripheral surfaces thereof are provided with seal rings for sealing.
The vertical distributed plunger pump assembly further comprises: water inlet joint 11 and water outlet joint 9, water inlet joint 11 has inlet channel 44, and water outlet joint 9 has outlet channel 39. The water inlet channel 44 of the water inlet joint 11 is communicated with the water inlet main channel 20, and the water outlet channel 39 of the water outlet joint 9 is communicated with the water outlet main channel 6. The water outlet joint 9 is connected with an external water source through a water pipe so as to supply water for the pump.
In order to facilitate the simplification of the structure and the installation of components, the water outlet joint 9 is also provided with a connecting water channel 40 and an overflow water channel 45, one end of the connecting water channel 40 is communicated with a water inlet channel 44 of the water inlet joint 11, and the other end is communicated with the main water inlet channel 20; the water outlet channel 39 is communicated with the water inlet channel 40 through an overflow water channel 45, and a one-way valve 47 is arranged at the position of the overflow water channel 45. The check valve 47 comprises a blocking piece 26 and a spring 27, the blocking piece 26 blocks the overflow channel 45 under the action of the spring 27, and the blocking piece 26 overcomes the elastic force of the spring 27 to move under the action of the water pressure in the water outlet channel 39 so as to conduct the overflow channel 45. The blocking piece 26 may be a steel ball or a plug with a tapered surface. The spring 27 forms a line seal with the end of the water inlet connector 11, so that for better water intake, the end of the water inlet connector 11 in communication with the connecting water channel 40 of the water outlet connector 9 is provided with a plurality of radially extending water discharge grooves 48. The water flow rapidly enters the main water intake passage 20 through the water discharge groove 48. The plunger 4 is in a movable sealing connection with the wall of the plunger chamber by means of a sealing ring 46, the parting line of the sealing ring 46 being arranged at 45 ° so as to avoid contact with the outer circumferential surface of the plunger 4.
The eccentric mechanism has a rotor 22 and a wheel 21 eccentrically provided on the rotor 22, and the plunger 4 is provided with a mounting portion to which the wheel 21 is mounted. The center of the wheel 21 is not coaxial with the center of the rotary member 22, and thus an eccentric motion is generated to drive the plunger 4 to reciprocate. The eccentric mechanism can also adopt a crank-slider mechanism to generate the same motion form.
The planetary reducer 2 comprises a reduction box 17, and a sun gear 10, planet gears 23 and an inner gear ring 18 which are arranged in the reduction box 17, wherein the sun gear 10 is arranged on a main shaft 19, the number of the planet gears 23 is three, the inner side of the planet gears 23 is engaged with the sun gear 10, the outer side of the planet gears is engaged with the inner gear ring 18, and a rotating member 22 is also used as a planet gear carrier and is connected with each planet gear 23 so as to receive amplified torque. The inner gear ring 18 is fixed with a reduction gearbox 17, and the reduction gearbox 17 is used for fixedly connecting the motor 1 and the plunger pump unit 3.
When the working is started, the cavity 35 of the sub-pump body 5 is not filled with water, when self-priming is started, the plunger 4 compresses air sucked from the water inlet cavity 36 through the cavity behind the water inlet one-way valve 8 in the process that the plunger 4 moves to deviate from the far end of the rotating part 22, the compressed air is discharged from the water outlet cavity 37 after passing through the water outlet one-way valve 7, when the plunger 4 moves back to the farthest end, the air is sucked, the air sucked from the water inlet joint 11 is sucked into the plunger cavity through the water inlet one-way valve 8, when the plunger moves to the nearest end away from the eccentric shaft planet carrier 22, the air sucking process is completed, the residual air in the cavity can expand at the beginning, the volume exchange of the sucked air is blocked, the self-priming capability is influenced, only part of the air is exchanged, at this time, the plunger 4 continues to move to perform the compressing action in the opposite direction away from the rotating part 22, and the air exhausting action is matched with the water outlet one-, air in the internal cavity is compressed, the plunger 4 reaches the farthest end to complete the action of compressing the air in the cavity, the operation is repeated, when the air in the cavity and the air in the water inlet pipe are completely exhausted, water sequentially enters the accommodating cavity 35 from the water inlet channel 44, the water inlet main channel 20, the water inlet branch channel 42 and the water inlet cavity 31 under the action of suction, the machine enters a normal high-pressure working state, the length of the self-suction process depends on effective control over the residual volume in the cavity, and the setting of each flow channel is optimized, so that the residual space between the water inlet check valve and the water outlet check valve is controlled to the maximum extent, the self-suction process can be rapidly completed, the idle time of starting of a user is short, and the service efficiency of the battery is greatly improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. A vertical distributed plunger pump assembly characterized in that: the method comprises the following steps:
a motor (1), the motor (1) having a main shaft (19) that outputs torque;
the eccentric mechanism eccentrically rotates under the action of the torque; and
a plunger pump unit (3), the plunger pump unit (3) having a plunger cavity and a plunger (4);
the eccentric mechanism drives the plunger (4) to reciprocate in the plunger cavity along a first direction; at least one end part of the plunger (4) is in dynamic sealing connection with the corresponding end part of the plunger cavity so as to form a containing cavity (35); the cavity (35) is communicated with a water inlet cavity (31) and a water outlet cavity (32); the water inlet cavity (31) and the water outlet cavity (32) both extend along a second direction; a water inlet one-way valve (8) is arranged in the water inlet cavity (31), and a water outlet one-way valve (7) is arranged in the water outlet cavity (32);
the first direction is perpendicular to a center line of the main shaft (19), and the second direction is perpendicular to the first direction.
2. The vertically distributed plunger pump assembly of claim 1, wherein:
the plunger pump unit (3) is also provided with a water inlet branch passage (42), a water outlet branch passage (43), a water inlet main passage (20) and a water outlet main passage (6); the water inlet branch passage (42) is communicated with the water inlet cavity (31), and the water outlet branch passage (43) is communicated with the water outlet cavity (32); the water inlet sub-channel (42) and the water outlet sub-channel (43) extend along the first direction; the water inlet main channel (20) and the water outlet main channel (6) extend along the second direction, the water inlet main channel (20) is communicated with the water inlet sub-channel (42), and the water outlet main channel (6) is communicated with the water outlet sub-channel (43).
3. The vertically distributed plunger pump assembly of claim 2, wherein:
further comprising:
a water inlet joint (11), the water inlet joint (11) having a water inlet channel (44); and
the water outlet joint (9), the water outlet joint (9) is provided with a water outlet channel (39);
the water inlet channel (44) of the water inlet joint (11) is communicated with the water inlet main channel (20), and the water outlet channel (39) of the water outlet joint (9) is communicated with the water outlet main channel (6).
4. The vertically distributed plunger pump assembly of claim 3, wherein:
the water outlet joint (9) is also provided with a connecting water channel (40) and an overflow water channel (45), one end of the connecting water channel (40) is communicated with a water inlet channel (44) of the water inlet joint (11), and the other end of the connecting water channel is communicated with the water inlet main channel (20);
the water outlet channel (39) is communicated with the water inlet channel (44) through the overflow channel (45), and a one-way valve (47) is arranged at the position of the overflow channel (45).
5. The vertically distributed plunger pump assembly of claim 4, wherein:
and a drainage groove (48) is arranged at one end of the water inlet joint (11) communicated with the connecting water channel (40) of the water outlet joint (9).
6. The vertically distributed plunger pump assembly of any one of claims 1 to 5, wherein:
two end parts of the plunger (4) are respectively in dynamic sealing connection with the corresponding end parts of the plunger cavity so as to form two containing cavities (35); each chamber (35) is filled with water through an inlet chamber (31) and drained with water through an outlet chamber (32).
7. The vertically distributed plunger pump assembly of claim 1, wherein:
the plunger (4) is in dynamic sealing connection with the wall of the plunger cavity through a sealing ring (46), and the parting line of the sealing ring (46) is not in contact with the outer circular surface of the plunger (4).
8. The vertically distributed plunger pump assembly of claim 1, wherein:
the eccentric mechanism has a rotation piece (22) and an eccentric wheel (21) arranged on the rotation piece (22), and the plunger (4) is provided with an installation part for installing the wheel (21).
9. The vertically distributed plunger pump assembly of claim 1, wherein:
the planetary gear set is characterized by further comprising a planetary speed reducer, wherein the planetary speed reducer comprises a sun gear (10), a planet gear (23) and an inner gear ring (18), the sun gear (10) is arranged on the main shaft (19), the inner side of the planet gear (23) is meshed with the sun gear (10), the outer side of the planet gear (23) is meshed with the inner gear ring (18), and the eccentric mechanism is connected with the planet gear (23).
10. A cleaning machine is characterized in that: comprising the vertically distributed plunger pump assembly of claim 1.
CN201920874437.6U 2019-06-12 2019-06-12 Vertical distributed plunger pump assembly and cleaning machine Active CN210799253U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920874437.6U CN210799253U (en) 2019-06-12 2019-06-12 Vertical distributed plunger pump assembly and cleaning machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920874437.6U CN210799253U (en) 2019-06-12 2019-06-12 Vertical distributed plunger pump assembly and cleaning machine

Publications (1)

Publication Number Publication Date
CN210799253U true CN210799253U (en) 2020-06-19

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Application Number Title Priority Date Filing Date
CN201920874437.6U Active CN210799253U (en) 2019-06-12 2019-06-12 Vertical distributed plunger pump assembly and cleaning machine

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113775498A (en) * 2021-10-13 2021-12-10 浙江酷泓机械科技有限公司 Axial pump of high-pressure cleaning machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113775498A (en) * 2021-10-13 2021-12-10 浙江酷泓机械科技有限公司 Axial pump of high-pressure cleaning machine

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