CN212418394U - Hand-held cleaning machine - Google Patents
Hand-held cleaning machine Download PDFInfo
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- CN212418394U CN212418394U CN202020788974.1U CN202020788974U CN212418394U CN 212418394 U CN212418394 U CN 212418394U CN 202020788974 U CN202020788974 U CN 202020788974U CN 212418394 U CN212418394 U CN 212418394U
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Abstract
The utility model discloses a hand-held cleaning machine, which comprises a pump body, a rotary driving part arranged at the rear end of the pump body and a spraying part arranged at the front end of the pump body, wherein a water inlet of the pump body is connected with a water inlet pipe through a water pipe; a check valve is arranged in the water inlet pipe; a hollow plunger is arranged in a plunger cavity of the pump body; the outer surface of the hollow plunger is matched with the plunger cavity and is sealed by an O-shaped sealing ring and a star-shaped sealing ring; the utility model controls the opening of the check valve by the trigger, realizes the control of the tap water source, and leads the cleaning machine to work by the tap water source; in addition, the O-shaped sealing ring and the star-shaped sealing ring are used for sealing, so that the friction force of the hollow plunger in reciprocating motion is greatly reduced, the weight of the hollow plunger is reduced, the load of the plunger pump is reduced, and the working efficiency is improved; and finally, the water inlet valve and the water outlet valve are arranged in a superposed mode to improve the self-absorption capacity of the pump body and further improve the working efficiency.
Description
Technical Field
The utility model relates to a cleaning device technical field especially relates to a handheld cleaning machine.
Background
The handheld cleaning machine is used as a cleaning device, is more and more widely applied to the life of people, and brings great convenience to the life of people; the cleaning machine can be used for cleaning automobiles, doors and windows, courtyard roads and the like, is convenient to use, and is safe and efficient; the hand-held washer is small and exquisite in body shape, more convenient to move and use, and is generally internally provided with a plunger pump and a water flow channel so as to output high-pressure water flow outwards.
The water inlet of the existing hand-held cleaning machine is usually communicated with a water barrel through a water pipe, a plunger pump in the cleaning machine pumps water in the water barrel into the cleaning machine, and high-pressure water is sprayed out to spray and clean objects; however, the water in the bucket is limited to be stored, and water needs to be added into the bucket continuously, so that the labor capacity is increased; due to the structural limitation of the existing cleaning machine, a water inlet of the existing cleaning machine cannot be connected with a tap water pipe with pressure, and if the existing cleaning machine is directly connected with the tap water pipe, water still flows out of a water outlet under the condition that a plunger pump is not started; on the other hand, the existing cleaning machine is complex in structure, the load of moving parts of the plunger pump is large, and the working efficiency of the plunger pump is reduced.
Chinese patent with application number CN201721212469.7 proposes a hand-held cleaning machine, which comprises a housing, a motor, a plunger pump, a power supply and a valve, wherein the housing contains the motor, the plunger pump and the valve, the housing is provided with a water inlet and a water outlet, the motor drives the plunger pump, the power supply supplies power to the motor, the plunger pump is located between the valve and the water outlet, the valve is located between the water inlet and the plunger pump, and a lighting device is further arranged, and the lighting device is installed on the housing; the technology greatly expands the service environment of the handheld cleaning machine, is not limited by the light intensity of the working environment, but does not solve the problem that the efficiency of the plunger pump is influenced by the fact that the existing handheld cleaning machine cannot be directly connected with a tap water pipe and the structure is complex.
Therefore, a need exists for a hand-held cleaning machine that solves the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a hand-held cleaning machine, wherein a check valve is arranged at the water inlet pipe, and the check valve is controlled to be opened by a trigger, so as to control the tap water source, and the cleaning machine can work by using the tap water source; in addition, the sealing replacement mode and the hollow plunger are adopted to reduce the load of the plunger pump, so that the working efficiency is improved; the water inlet valve and the water outlet valve are arranged in a superposed mode, so that the self-sucking capacity of the pump body is improved, and the working efficiency is further improved.
The utility model discloses a realize through following technical scheme.
A handheld cleaning machine comprises a pump body, a rotary driving part arranged at the rear end of the pump body and a spraying part arranged at the front end of the pump body, wherein a water inlet of the pump body is connected with a water inlet pipe through a water pipe; a check valve is arranged in the water inlet pipe;
a hollow plunger is arranged in a plunger cavity of the pump body; the outer surface of the hollow plunger is matched with the plunger cavity and is sealed through the sealing assembly.
Further, a trigger is arranged below the rotary driving part and hinged with the outer surface of the rotary driving part;
one end of the trigger, which is far away from the pump body, extends downwards from the hinge joint to form a handle suitable for being held by a hand;
a pressing handle extends from the hinged position at the other end of the trigger;
the lower surface of the pressing handle is concavely provided with a clamping groove;
the water inlet pipe is arranged below the pressing handle;
the water inlet pipe is a reducing hollow cylinder, and the inner diameter of the upper part of the water inlet pipe is smaller than that of the lower part of the water inlet pipe;
the lower end of the water inlet pipe is provided with a water inlet joint; the water inlet joint is connected with a tap water pipeline.
Furthermore, the check valve comprises a valve seat arranged at the position where the inner diameter of the water inlet pipe is larger, and a certain gap is kept between the outer circumference of the check valve and the inner wall of the water inlet pipe;
the upper part of the valve seat extends into a cylinder, the outer diameter of the cylinder is matched with the smaller inner diameter part of the upper part of the water inlet pipe, the cylinder is subjected to sealing treatment, and the cylinder slides in the water inlet pipe.
Furthermore, a cylinder at the upper part of the valve seat is provided with a central hole;
an elastic piece is arranged below the valve seat;
the upper end of the elastic part is propped against the valve seat, and the lower end of the elastic part is propped against the upper part of the water inlet joint, so that the valve seat is propped upwards;
a valve rod is vertically sleeved in the water inlet pipe, the upper end of the valve rod extends out of the water inlet pipe and abuts against a clamping groove in the pressing handle, and the lower end of the valve rod is sleeved in a central hole in the upper portion of the valve seat and abuts against the bottom of the hole.
Further, the outer wall of the water inlet pipe is provided with a water outlet;
the water outlet is positioned above the valve seat;
the water outlet of the water inlet pipe is communicated with the water inlet of the pump body through a water pipe.
Further, the pump body comprises a pump seat with a cylindrical structure; one end of the pump seat is hollow, and a plurality of plunger cavities at the other end are concavely arranged in the pump seat and are arranged along the circumferential direction;
and the hollow end of the pump seat is fixedly connected with the shell of the rotary driving part.
Furthermore, the matching surface of the plunger cavity and the hollow plunger is concavely provided with a step, and the sealing assembly comprises an O-shaped sealing ring and a star-shaped sealing ring;
the O-shaped sealing ring is arranged at the step;
a pressing ring is sleeved in the plunger cavity;
the end surface of the pressing ring props against the O-shaped sealing ring;
the star-shaped sealing ring is sleeved in the plunger cavity and clings to the other end face of the pressing ring;
a gland is a hollow annular structure with one end sealed, is sleeved in the plunger cavity, and the open end of the gland props against the star-shaped sealing ring.
Furthermore, the hollow plunger is hollow, one end of the hollow plunger is open, and the other end of the hollow plunger is closed;
the closed end of the hollow plunger extends out of the plunger cavity and abuts against the plane bearing;
the hollow plunger and the gland form a closed space.
Furthermore, a pump cover is fixedly arranged on one side of the pump seat, which is different from the rotary driving part;
the pump cover limits the gland in the plunger cavity;
a water outlet is formed in the end face of the pump cover;
and the water outlet of the pump cover is connected with the spraying part.
Further, the water inlet is arranged on the outer wall of the pump seat;
the water inlet of the pump seat is communicated with the water outlet;
a water inlet valve and a water outlet valve are sequentially arranged on the passage of the water inlet and the water outlet;
wherein the water inlet valve is positioned in the pump seat, and the water outlet valve is positioned in the pump cover;
the water inlet valve and the water outlet valve are one-way valves, and the opening directions are consistent;
the side wall of the gland is provided with a through hole which is communicated with the outlet of the water inlet valve.
Compared with the prior art, the beneficial effects of the utility model reside in that:
1) the water inlet of the pump body of the utility model is connected with a water inlet pipe through a water pipe, a check valve is arranged inside the water inlet pipe, and the trigger is used for controlling the opening of the check valve, thereby realizing the control of a tap water source and leading the cleaning machine to work by utilizing the tap water source;
2) the hollow plunger is arranged in the plunger cavity of the pump body, the outer surface of the hollow plunger is matched with the plunger cavity and is sealed by the O-shaped sealing ring and the star-shaped sealing ring, the friction force of the hollow plunger when reciprocating motion is carried out is greatly reduced, the weight of the hollow plunger is lightened, the load of the plunger pump is reduced, and the working efficiency is improved;
3) the utility model discloses set up water intaking valve and outlet valve stack to improve the pump body from the ability of inhaling, further improve work efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a view showing the outline of the present invention;
FIG. 2 is a view of the check valve structure of the present invention;
fig. 3 is the structure diagram of the pump body of the present invention.
In the figure: 1. a pump body; 2. a rotation driving section; 3. a spraying section; 4. a trigger; 5. a hinge position; 6. pressing the handle; 7. a card slot; 8. a water inlet pipe; 9. a water inlet joint; 10. a valve stem; 11. a valve seat; 12. an elastic member; 13. a water pipe; 14. a swash plate; 15. a flat bearing; 16. a hollow plunger; 17. a plunger elastic member; 18. an O-shaped sealing ring; 19. pressing a ring; 20. a star-shaped sealing ring; 26. a water inlet valve; 27. a water outlet valve; 21. a gland; 23. a pump cover; 22. a pump mount; 24. a water inlet; 25. and (7) a water outlet.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
As shown in fig. 1 to 3, a hand-held cleaning machine includes a pump body 1, a rotary driving part 2 disposed at the rear end of the pump body 1, and a spraying part 3 disposed at the front end of the pump body 1;
a trigger 4 is arranged below the rotary driving part 2 and is hinged with the outer surface of the rotary driving part 2;
one end of the trigger 4, which is far away from the pump body 1, extends downwards from the hinge position 5 to form a handle suitable for being held by a hand;
the other end of the trigger 4 extends out of the hinge position 5 to form a pressing handle 6;
a clamping groove 7 is concavely arranged on the lower surface of the pressing handle 6;
a water inlet pipe 8 is vertically arranged below the pressing handle 6;
the water inlet pipe 8 is a reducing hollow cylinder, and the inner diameter of the upper part of the water inlet pipe is smaller than that of the lower part of the water inlet pipe;
the lower end of the water inlet pipe 8 is provided with a water inlet joint 9;
the water inlet joint 9 is connected with a tap water pipeline;
a check valve is arranged in the water inlet pipe 8;
the check valve comprises a valve rod 10, a valve seat 11 and an elastic piece 12;
the valve seat 11 is arranged at the position where the inner diameter of the water inlet pipe 8 is larger, and the outer circumference of the valve seat keeps a certain gap with the inner wall of the water inlet pipe 8 so as to facilitate the water flow to pass through;
a cylinder extends from the upper part of the valve seat 11, the outer diameter of the cylinder is matched with the smaller inner diameter part of the upper part of the water inlet pipe 8, sealing treatment is carried out, and the cylinder slides in the water inlet pipe 8;
a central hole is formed in the cylinder at the upper part of the valve seat 11;
an elastic part 12 is arranged below the valve seat 11;
the upper end of the elastic part 12 is propped against the valve seat 11, and the lower end is propped against the upper part of the water inlet joint 9, so that the valve seat 11 is propped upwards;
the valve rod 10 is vertically sleeved in the water inlet pipe 8, the upper end of the valve rod extends out of the water inlet pipe 8 and abuts against the clamping groove 7 on the pressing handle 6, and the lower end of the valve rod is sleeved in a central hole in the upper part of the valve seat 11 and abuts against the bottom of the hole;
the valve rod 10 is matched with the upper part of the water inlet pipe 8 and is subjected to sealing treatment, so that water flow is prevented from overflowing;
the outer wall of the water inlet pipe 8 is provided with a water outlet 25;
the water outlet 25 is positioned above the valve seat 11;
when the trigger 4 is pulled by a hand, the valve rod 10 is pressed down by the pressing handle 6, the valve rod 10 overcomes the upward thrust of the elastic piece 12 to push the valve seat 11 downwards, and the valve seat 11 is pushed out of the position with the smaller inner diameter at the upper part of the water inlet pipe 8; at the moment, if tap water enters the water inlet joint 9, the water flows to the upper part of the valve seat 11 through the gap between the valve seat 11 and the water inlet pipe 8 and flows out through the water outlet 25;
when the trigger 4 is released by hand, the valve seat 11 is pushed upwards by the elastic part 12, the valve seat 11 enters the position with smaller inner diameter at the upper part of the water inlet pipe 8, and water flow is blocked by matching and sealing treatment between the valve seat 11 and the water inlet pipe 8.
The water inlet 24 of the pump body 1 is arranged at the lower part;
the water outlet 25 of the water inlet pipe 8 is communicated with the water inlet 24 of the pump body 1 through a water pipe 13;
the rivers of inlet tube 8 pass through the water pipe 13 and get into pump body 1 in, pump body 1 further pressurizes rivers, forms high-pressure rivers, through the blowout of spraying portion 3.
The pump body 1 is a plunger pump;
the pump body 1 comprises a swash plate 14, a plane bearing 15, a hollow plunger 16, a plunger elastic piece 17, a water inlet valve 26, a water outlet valve 27, a gland 21, a pump cover 23 and a pump seat 22;
the pump base 22 is of a cylindrical structure, one end of the pump base is hollow, and a plurality of plunger cavities at the other end of the pump base are arranged along the circumferential direction and are concavely arranged in the pump base 22;
one hollow end of the pump seat 22 is fixedly connected with the shell of the rotary driving part 2;
the swash plate 14 is arranged in a hollow part in the pump base 22, is connected with an output shaft of the rotary driving part 2 and is driven by the rotary driving part 2 to do rotary motion;
the side of the swash plate 14, which is different from the rotary driving part 2, is an inclined surface;
a flat bearing 15 is provided on the inclined surface of the swash plate 14.
A hollow plunger 16 is arranged in the plunger cavity;
the outer surface of the hollow plunger 16 is matched with the plunger cavity;
the matching surface of the plunger cavity and the hollow plunger 16 is concavely provided with a step;
an O-shaped sealing ring 18 is arranged at the step;
in order to fix the O-shaped sealing ring 18, a pressing ring 19 is sleeved in the plunger cavity;
the end surface of the pressing ring 19 is propped against the O-shaped sealing ring 18;
the inner wall of the plunger cavity is simultaneously sleeved with a star-shaped sealing ring 20;
the star-shaped sealing ring 20 is tightly attached to the other end face of the pressing ring 19;
a gland 21 is sleeved in the plunger cavity;
the gland 21 is a hollow annular structure with one end sealed, and the open end of the gland props against the star-shaped sealing ring 20;
the hollow plunger 16 is hollow, one end of the hollow plunger is open, and the other end of the hollow plunger is closed;
the closed end of the hollow plunger 16 extends out of the plunger cavity;
the hollow plunger 16 and the gland 21 form a closed space;
a boss is protruded outwards at one end of the hollow plunger 16 extending out of the plunger cavity;
a plunger elastic part 17 is sleeved on the hollow plunger 16, and one end of the plunger elastic part is abutted against the end surface of the plunger cavity;
the plunger elastic piece 17 presses the hollow plunger 16 out of the plunger cavity, and the closed end surface of the hollow plunger 16 presses the plane bearing 15;
when the swash plate 14 rotates, the hollow plunger 16 makes reciprocating linear motion in a plunger cavity under the action of the plunger elastic piece 17 and the inclined surface of the swash plate 14, and a closed space formed by the hollow plunger 16 and the gland 21 forms high pressure;
the O-shaped sealing ring 18 and the star-shaped sealing ring 20 play a role in sealing a closed space, greatly reduce the friction force of the hollow plunger 16 during reciprocating motion, reduce friction load and improve the working efficiency of the rotary driving part 2;
the hollow plunger 16 is lighter than a solid plunger, and increases a high-pressure closed space, thereby greatly improving the working efficiency of the rotary driving part 2.
A pump cover 23 is fixedly arranged on one side of the pump seat 22, which is different from the rotary driving part 2;
the pump cover 23 limits the gland 21 in the plunger cavity;
a water outlet 25 is formed in the end face of the pump cover 23;
the water outlet 25 of the pump cover 23 is connected with the spraying part 3;
the water inlet 24 is arranged on the outer wall of the pump seat 22;
the water inlet 24 of the pump seat 22 is communicated with the water outlet 25;
a water inlet valve 26 and a water outlet valve 27 are sequentially arranged on the passage of the water inlet 24 and the water outlet 25;
wherein the water inlet valve 26 is positioned in the pump seat 22, and the water outlet valve 27 is positioned in the pump cover 23;
the water inlet valve 26 and the water outlet valve 27 are one-way valves, and the opening directions are consistent, so that the water flow at the water inlet 24 can only flow into the water inlet valve 26 but cannot reversely flow through the water inlet valve 26, and the water flow at the water outlet 25 cannot reversely flow through the water outlet valve 27;
a through hole is arranged on the side wall of the gland 21 and is communicated with the outlet of the water inlet valve 26;
when the plunger elastic piece 17 pushes the hollow plunger 16 out of the plunger cavity, negative pressure is formed in the closed space, and water at the water inlet 24 is pumped into the pump body 1 through the water inlet valve 26;
when the hollow plunger 16 is pumped into the plunger cavity by the swash plate 14, the enclosed space is positively pressurized, and the water flow in the pump body 1 is forced into the spraying section 3 through the outlet valve 27, thereby forming a high pressure water flow.
Here, the water inlet valve 26 and the water outlet valve 27 are arranged in an overlapping manner, so that the pump body 1 is compact in structure, a good sealing state of the pump body 1 is ensured, and the self-priming capability of the pump body 1 is improved.
When the trigger 4 is pulled by a hand, the valve rod 10 is pressed down by the pressing handle 6, the valve rod 10 overcomes the upward thrust of the elastic piece 12 to push the valve seat 11 downwards, and the valve seat 11 is pushed out of the position with the smaller inner diameter at the upper part of the water inlet pipe 8; at the moment, if tap water enters the water inlet joint 9, the water flows to the upper part of the valve seat 11 through the gap between the valve seat 11 and the water inlet pipe 8 and flows out through the water outlet 25; when the trigger 4 is loosened by hand, the valve seat 11 is pushed upwards by the elastic part 12, the valve seat 11 enters the position with smaller inner diameter at the upper part of the water inlet pipe 8, and water flow is blocked by matching and sealing treatment between the valve seat 11 and the water inlet pipe 8; the rivers of inlet tube 8 pass through the water pipe 13 and get into in the pump body 1, and the confined space of the pump body 1 further pressurizes to rivers, forms high-pressure rivers, through spraying portion 3 blowout.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; these modifications and substitutions do not depart from the essence of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A handheld cleaning machine comprises a pump body (1), a rotary driving part (2) arranged at the rear end of the pump body (1) and a spraying part (3) arranged at the front end of the pump body (1), and is characterized in that a water inlet (24) of the pump body (1) is connected with a water inlet pipe (8) through a water pipe (13); a check valve is arranged in the water inlet pipe (8);
a hollow plunger (16) is arranged in a plunger cavity of the pump body (1); the outer surface of the hollow plunger (16) is fitted with the plunger cavity and sealed by a sealing assembly.
2. The hand-held washing machine according to claim 1, characterized in that a trigger (4) is arranged below the rotary driving part (2), and the trigger (4) is hinged with the outer surface of the rotary driving part (2);
one end of the trigger (4) departing from the pump body (1) extends downwards from the hinge joint (5) to form a handle suitable for being held by a hand;
the other end of the trigger (4) extends out of the hinge position (5) to form a pressing handle (6);
a clamping groove (7) is concavely arranged on the lower surface of the pressing handle (6);
the water inlet pipe (8) is arranged below the pressing handle (6);
the water inlet pipe (8) is a reducing hollow cylinder, and the inner diameter of the upper part is smaller than that of the lower part;
the lower end of the water inlet pipe (8) is provided with a water inlet joint (9); the water inlet joint (9) is connected with a tap water pipeline.
3. The hand-held cleaning machine according to claim 2, characterized in that the non-return valve comprises a valve seat (11) arranged at the larger inner diameter of the inlet pipe (8), the outer circumference of which is kept at a certain clearance from the inner wall of the inlet pipe (8);
the upper part of the valve seat (11) extends into a cylinder, the outer diameter of the cylinder is matched with the smaller inner diameter part of the upper part of the water inlet pipe (8) and is subjected to sealing treatment, and the cylinder slides in the water inlet pipe (8).
4. Hand-held cleaning machine according to claim 3, characterised in that the cylinder above the valve seat (11) is provided with a central hole;
an elastic piece (12) is arranged below the valve seat (11);
the upper end of the elastic piece (12) is abutted against the valve seat (11), the lower end of the elastic piece is abutted against the upper part of the water inlet joint (9), and the valve seat (11) is pushed upwards;
a valve rod (10) is vertically sleeved in the water inlet pipe (8), the upper end of the valve rod extends out of the water inlet pipe (8) and abuts against a clamping groove (7) in the pressing handle (6), and the lower end of the valve rod is sleeved in a central hole in the upper portion of the valve seat (11) and abuts against the bottom of the hole.
5. Hand-held cleaning machine according to claim 4, characterised in that the outer wall of the water inlet pipe (8) has a water outlet (25);
the water outlet (25) is positioned above the valve seat (11);
the water outlet (25) of the water inlet pipe (8) is communicated with the water inlet (24) of the pump body (1) through a water pipe (13).
6. Hand-held washing machine according to claim 1, characterised in that the pump body (1) comprises a pump seat (22) of cylindrical configuration; one end of the pump seat (22) is hollow, and a plurality of plunger cavities at the other end are concavely arranged in the pump seat (22) and are arranged along the circumferential direction;
and the hollow end of the pump seat (22) is fixedly connected with the shell of the rotary driving part (2).
7. The hand-held cleaning machine according to claim 6, characterized in that the mating surface of the plunger cavity and the hollow plunger (16) is concavely provided with a step, and the sealing assembly comprises an O-shaped sealing ring (18) and a star-shaped sealing ring (20);
the O-shaped sealing ring (18) is arranged at the step;
a pressing ring (19) is arranged in the plunger cavity;
the end surface of the pressing ring (19) props against the O-shaped sealing ring (18);
the star-shaped sealing ring (20) is sleeved in the plunger cavity and is tightly attached to the other end face of the pressing ring (19);
a gland (21) is a hollow annular structure with one end sealed, is sleeved in the plunger cavity, and the open end of the gland props against the star-shaped sealing ring (20).
8. The hand-held washing machine according to claim 7, characterized in that the hollow plunger (16) is hollow inside, open at one end and closed at the other end;
the closed end of the hollow plunger (16) extends out of the plunger cavity and is abutted against the plane bearing (15);
the hollow plunger (16) and the gland (21) form a closed space.
9. The hand-held cleaning machine according to claim 8, characterized in that a pump cover (23) is fixedly arranged on one side of the pump base (22) far away from the rotary driving part (2);
the pump cover (23) limits the gland (21) in the plunger cavity;
a water outlet (25) is formed in the end face of the pump cover (23);
and a water outlet (25) of the pump cover (23) is connected with the spraying part (3).
10. The hand-held cleaning machine according to claim 9, characterized in that the water inlet (24) is arranged on an outer wall of the pump holder (22);
a water inlet (24) of the pump seat (22) is communicated with a water outlet (25);
a water inlet valve (26) and a water outlet valve (27) are sequentially arranged on a passage of the water inlet (24) and the water outlet (25);
wherein the water inlet valve (26) is positioned in the pump seat (22), and the water outlet valve (27) is positioned in the pump cover (23);
the water inlet valve (26) and the water outlet valve (27) are one-way valves, and the opening directions are consistent;
the side wall of the gland (21) is provided with a through hole, and the through hole is communicated with the outlet of the water inlet valve (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788974.1U CN212418394U (en) | 2020-05-13 | 2020-05-13 | Hand-held cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020788974.1U CN212418394U (en) | 2020-05-13 | 2020-05-13 | Hand-held cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212418394U true CN212418394U (en) | 2021-01-29 |
Family
ID=74289333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020788974.1U Active CN212418394U (en) | 2020-05-13 | 2020-05-13 | Hand-held cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212418394U (en) |
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2020
- 2020-05-13 CN CN202020788974.1U patent/CN212418394U/en active Active
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Effective date of registration: 20221230 Address after: No. 2-1, Xinzhong Road, Xinbi Street, Jinyun County, Lishui, Zhejiang 321304 Patentee after: Zhejiang Chichen Industry and Trade Co.,Ltd. Address before: 321304 3rd floor, 172 Jinji Road, qiancang village, qiancang Town, Yongkang City, Jinhua City, Zhejiang Province Patentee before: YONGKANG CHICHEN INDUSTRY AND TRADE Co.,Ltd. |
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