CN215633569U - Plunger pump of hand-held high-pressure cleaning machine - Google Patents
Plunger pump of hand-held high-pressure cleaning machine Download PDFInfo
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- CN215633569U CN215633569U CN202121965085.9U CN202121965085U CN215633569U CN 215633569 U CN215633569 U CN 215633569U CN 202121965085 U CN202121965085 U CN 202121965085U CN 215633569 U CN215633569 U CN 215633569U
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Abstract
The utility model discloses a plunger pump of a hand-held high-pressure cleaning machine, which comprises a motor and the plunger pump, wherein a transmission device is arranged between the motor and the plunger pump, the transmission device comprises an inner gear ring, a sun gear, a planet gear and a transmission shaft, the sun gear is connected with the output shaft of the motor, the planet gear is engaged with both the sun gear and the inner gear ring, the planet gear is connected with the transmission shaft, the transmission shaft is connected with the swash plate, the plunger pump comprises a pump seat and a pump body which are detachably connected, a plunger and a water inlet one-way valve are arranged in the pump seat, the plunger is communicated with the water inlet one-way valve, a water outlet one-way valve coaxial with the water inlet one-way valve is arranged in the pump body, the swash plate is contacted with the plunger, a water seal seat is arranged outside one side of the plunger close to the water inlet one-way valve, and star-shaped sealing rings are arranged among the water seal seat, the plunger and the pump seat, the O-shaped sealing ring is arranged between the water seal seat and the pump body, the structure is simple, the performance is stable, and the cruising ability and performance parameters of the battery pack are improved to the maximum extent.
Description
Technical Field
The utility model relates to a plunger pump, in particular to a plunger pump of a handheld high-pressure cleaning machine.
Background
The handheld lithium battery high-pressure cleaning machine on the existing market mainly has two structures, one is a double-plunger motor pump, but the motor pump is limited by the structure when working, certain pulsation can be generated, and performance parameters are not very high; the other type of the cleaning machine is evolved from the basis of a series-excited three-plunger cleaning machine motor pump, although performance parameters are improved to a certain extent, the endurance is not high, a water seal and an oil seal are structurally adopted, so that the plunger has large friction resistance and consumes much power in the operation process, the current is high, the power is high, the endurance is weak, and the performance parameters and the endurance time cannot be obtained simultaneously.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to provide a plunger pump of a handheld high-pressure cleaning machine, which solves the problems of low performance parameter and low cruising ability of the motor pump of the traditional plunger cleaning machine
The technical scheme is as follows: the utility model relates to a hand-held high-pressure cleaning machine plunger pump, which comprises a motor and a plunger pump, wherein a transmission device is arranged between the motor and the plunger pump, the transmission device comprises an inner gear ring, a sun gear, a planet gear and a transmission shaft, the sun gear is connected with an output shaft of the motor, the planet gear is engaged with the sun gear and the inner gear ring, the planet gear is connected with the transmission shaft, the transmission shaft is connected with a swash plate, the plunger pump comprises a pump seat and a pump body which are detachably connected, a plunger and a water inlet one-way valve are arranged in the pump seat, the plunger is communicated with the water inlet one-way valve, a water outlet one-way valve coaxial with the water inlet one-way valve is arranged in the pump body, the swash plate is in contact with the plunger, a water seal seat is arranged outside one side of the plunger close to the water inlet one-way valve, star-shaped seal rings are arranged between the water seal seat and the plunger, and the pump seat, and an O-shaped seal ring is arranged between the water seal seat and the pump body, the motor drives the sun wheel to rotate, the sun wheel drives the planet wheel to rotate, the planet wheel drives the rotating shaft to rotate, the rotating shaft rotates to drive the swash plate to rotate, the swash plate rotates to drive the plunger to reciprocate, and the volume change in the pump body is driven, so that the water inlet and outlet check valve assembly works.
In order to reduce the rotational inertia of the plungers in the moving process, the plunger pump is a three-plunger swash plate plunger pump, and the plungers are hollow plungers.
In order to conveniently install the swash plate, the swash plate is installed in an oil cylinder of the plunger pump, and a thrust ball shaft is arranged on one side, close to the plunger, of the swash plate.
In order to fix the transmission shaft conveniently, the planet wheel is arranged in the gear box, and the front end and the rear end of the transmission shaft are fixed between the gear box and the oil cylinder through deep groove ball bearings respectively.
In order to effectively prevent water leakage and oil leakage, the inner hole of the water seal seat is provided with an inner groove for installing a star-shaped sealing ring, and the outer diameter of the water seal seat is provided with an outer groove for installing an O-shaped sealing ring.
In order to effectively store lubricating grease and perform lubrication, the cross section of the star-shaped sealing ring is X-shaped.
In order to conveniently position the plunger spring, a clamp spring is arranged on the plunger, a plunger spring is arranged outside the plunger, and the plunger spring is located on the clamp spring.
And a water outlet channel in the pump body is connected with a water outlet joint.
The technical principle is as follows: the utility model cancels a water seal and an oil seal, adopts a star-shaped sealing ring as the water seal and the oil seal, can greatly reduce the contact area of the plunger, the water seal and the oil seal, simultaneously has the special structure of the star-shaped sealing ring, can well store lubricating grease, can play a role of lubricating the lubricating grease stored in the groove between the plunger and the star-shaped sealing ring in the motion process of the plunger, greatly reduces the friction resistance, reduces the current and the power, improves the endurance capacity, and simultaneously can prevent water from flowing into the pump seat and prevent the oil from flowing out of the pump seat. In addition, the O-shaped sealing ring between the water seal seat and the pump body can prevent water from flowing out of the machine, and the hollow plunger is adopted, so that the rotational inertia of the plunger in the operation process can be reduced, and the weight can be reduced.
Has the advantages that: the utility model has simple structure and stable performance, the X-shaped sealing ring is used as a water seal and an oil seal, and the surface of the X-shaped sealing ring is coated with lubricating grease, so that the contact area can be reduced, the friction force is reduced, the power is reduced, meanwhile, the sealing and lubricating effects can be achieved, and the cruising ability and performance parameters of the battery pack are improved to the maximum extent.
Drawings
FIG. 1 is a schematic plan view of the present invention;
FIG. 2 is a schematic perspective view of the present invention
Detailed Description
As shown in fig. 1-2, the plunger pump of the hand-held high-pressure cleaning machine disclosed by the utility model comprises a motor 1, a pump seat 6 and an oil cylinder 4, wherein the pump seat 6 is fixed with a pump body 8 through screws, the pump body 8 is connected with a water outlet joint 11, the pump seat 6 is fixed on the oil cylinder 4 through screws, a gear box 3 is fixed with the motor through screws 2, a planet wheel 15 is arranged in the gear box 3, the planetary gear train is fixed between the gear box 3 and the oil cylinder 4 through the deep groove ball bearings 13 at two ends of the transmission shaft 17 respectively, the swash plate 18 is installed at the other end of the transmission shaft 17 and is screwed on the rotating shaft 17 through screws 19, the thrust ball bearings 5 are installed on the swash plate 18, the hollow plunger 22 is located on the thrust ball bearings 5, the snap springs 23 are installed on the plunger, and the plunger springs 25 are located on the snap springs 23. The plunger is close to and intakes one side of the check valve and is equipped with the water seal seat outward, the water seal seat 26 is installed between pump mount 6 and pump body 8, is equipped with the star sealing washer 24 between water seal seat 26 and the pump mount 6, is provided with the inner groove and is equipped with the star sealing washer 24 in the hole that water seal seat 26 and plunger contact, and the water seal seat is provided with the outer slot and is equipped with O shape sealing washer by the outside of the pump body. The plunger 22 passes through the plunger hole on the pump seat 6 and the inner hole of the water seal seat. The water inlet check valve assembly 7 is arranged between the pump body and the pump seat, and the water outlet check valve assembly 9 is arranged between the pump body 8 and the water outlet joint 11.
When the motor 1 drives the front sun gear 12 to rotate, the motion is transmitted to the transmission shaft 17 through the planetary gear and the inner gear ring, the transmission shaft 17 drives the swash plate 18 to rotate, and the rotation of the swash plate 18 pushes the plunger 22 to reciprocate. When the plunger 22 moves leftwards, the volume of the front end of the plunger 22 is increased, the water outlet one-way valve 9 is closed, the water inlet one-way valve 7 is opened, and water is sucked into the pump from the water inlet; when the plunger moves rightwards, the water inlet check valve 7 is closed, the water outlet check valve 9 is opened, water is discharged from the water outlet on the right side of the water outlet joint 11, and high-pressure spraying is formed through the nozzle. In use, the O-ring 27 between the water seal seat 26 and the pump body 8 performs static sealing to prevent water from flowing out of the pump body. A star-shaped sealing ring is arranged between the water seal seat 26 and the pump seat 6 to prevent grease in the pump seat 6 from flowing out of the plunger hole. The inner hole of the water seal seat 26 is provided with a star-shaped sealing ring close to the pump body 8 side to prevent water from flowing into the pump seat from the plunger. When the motor pump is assembled, lubricating grease is respectively coated on the surfaces of the star rings at the two positions, the lubricating grease is stored by means of the specific structure of the star rings, the surface of the plunger is lubricated, the contact area is reduced, the frictional resistance is reduced, the current and the power are reduced, and the cruising ability of the battery pack is improved.
Claims (8)
1. The plunger pump of the handheld high-pressure cleaning machine is characterized by comprising a motor (1) and a plunger pump, wherein a transmission device is arranged between the motor and the plunger pump, the transmission device comprises an inner gear ring (16), a sun wheel (12), a planet wheel (15) and a transmission shaft (17), the sun wheel (12) is connected with an output shaft of the motor (1), the planet wheel (15) is meshed with the sun wheel (12) and the inner gear ring (16), the planet wheel (15) is connected with the transmission shaft (17), the transmission shaft (17) is connected with a swash plate (18), the plunger pump comprises a pump base (6) and a pump body (8) which are detachably connected, a plunger and a water inlet one-way valve are arranged in the pump base (6), the plunger is communicated with the water inlet one-way valve, a water outlet one-way valve coaxial with the water inlet one-way valve component is arranged in the pump body (8), and the swash plate is in contact connection with the plunger, the plunger is close to and is equipped with water seal seat (26) outside the check valve one side of intaking, all be provided with star sealing washer (24) between water seal seat (26) and plunger, pump seat (6), be equipped with O shape sealing washer (27) between water seal seat (26) and the pump body, motor (1) drive sun gear (12) rotate, and sun gear (12) drive planet wheel (15) rotate, and planet wheel (15) drive transmission shaft (17) rotate, transmission shaft (17) rotate and drive sloping cam plate (18) and rotate, and sloping cam plate (18) rotate drive plunger reciprocating motion, drive the change of pump body internal volume to realize business turn over water check valve subassembly work.
2. The hand-held high-pressure washer piston pump as claimed in claim 1, characterized in that the piston pump is a three-piston swash-plate piston pump, the pistons being hollow pistons (22).
3. The hand-held high-pressure washer plunger pump according to claim 1, characterized in that the swash plate (18) is mounted in the cylinder (4) of the plunger pump, and the side of the swash plate (18) near the plunger is provided with a thrust ball bearing (5).
4. The hand-held high-pressure washer plunger pump as claimed in claim 2, characterized in that the planet wheels are mounted in a gear box, and the front and rear ends of the drive shaft (17) are fixed between the gear box and the oil cylinder by deep groove ball bearings (13), respectively.
5. The hand-held high-pressure washer plunger pump according to claim 1, characterized in that the inner bore of the water seal seat (26) is provided with an inner groove for mounting a star-shaped sealing ring, and the outer diameter of the water seal seat is provided with an outer groove for mounting an O-shaped sealing ring.
6. The hand-held high-pressure washer plunger pump as claimed in claim 1, characterized in that the cross-sectional shape of the star-shaped sealing ring (24) is X-shaped.
7. The hand-held high-pressure washer plunger pump as claimed in claim 1, characterized in that a snap spring (23) is arranged on the plunger, a plunger spring (25) is arranged outside the plunger, and the plunger spring (25) rests on the snap spring (23).
8. The hand-held high-pressure washer plunger pump as claimed in claim 1, characterized in that the outlet channel in the pump body (8) is connected to a water outlet connection (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965085.9U CN215633569U (en) | 2021-08-20 | 2021-08-20 | Plunger pump of hand-held high-pressure cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965085.9U CN215633569U (en) | 2021-08-20 | 2021-08-20 | Plunger pump of hand-held high-pressure cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215633569U true CN215633569U (en) | 2022-01-25 |
Family
ID=79899986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121965085.9U Active CN215633569U (en) | 2021-08-20 | 2021-08-20 | Plunger pump of hand-held high-pressure cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215633569U (en) |
-
2021
- 2021-08-20 CN CN202121965085.9U patent/CN215633569U/en active Active
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