CN220547431U - Emptying structure of self-priming pipeline of high-pressure cleaning machine - Google Patents
Emptying structure of self-priming pipeline of high-pressure cleaning machine Download PDFInfo
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- CN220547431U CN220547431U CN202322161087.8U CN202322161087U CN220547431U CN 220547431 U CN220547431 U CN 220547431U CN 202322161087 U CN202322161087 U CN 202322161087U CN 220547431 U CN220547431 U CN 220547431U
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- air
- evacuation
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- 238000004140 cleaning Methods 0.000 title abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 40
- 230000037452 priming Effects 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims 5
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 7
- 238000010926 purge Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an emptying structure of a self-priming pipeline of a high-pressure cleaning machine, which comprises an emptying pipe connected to a pump body pipeline outlet, wherein a multi-section hole cavity is formed in the emptying pipe in an axial through mode, a cylindrical body is radially formed on the emptying pipe, an emptying valve cavity vertically communicated with the hole cavity is formed in the cylindrical body, an emptying valve for realizing backflow of air discharge liquid by utilizing different qualities of air and liquid is arranged in the emptying valve cavity, and the emptying valve is formed by assembling an emptying valve core, an emptying valve spring and an emptying valve nut. The utility model has reasonable design and convenient installation, can furthest shorten the self-priming time, reduce the abrasion of parts and prolong the service life of the cleaning machine.
Description
Technical Field
The utility model relates to a pipeline emptying technology, in particular to an emptying structure of a self-priming pipeline of a high-pressure cleaning machine.
Background
In the self-priming line of the high-pressure cleaner, a large amount of air must remain in the early stage, and the rear end of the plunger (piston) must be in a vacuum state to realize self priming. To realize vacuum, the plunger (piston) needs to do work in a great amount of reciprocating motion, compresses the air in the front end pipeline or empties the front end air, and the process is finished, so that certain energy waste and certain damage to machine parts and the like are caused. Therefore, an emptying structure is needed to be designed, so that the self-priming time can be shortened to the greatest extent through the emptying structure, the use requirement of the cleaning machine is met at the highest speed, the damage caused by mutual dynamic friction of a pump plunger of the cleaning machine, a sealing element and the like is reduced, and the aim of rapidly emptying air in a pipeline is fulfilled.
Disclosure of Invention
The utility model aims to solve the technical problem of providing an emptying structure of a self-priming pipeline of a high-pressure cleaning machine aiming at the current state of the art. The emptying structure is reasonable in design and convenient to install, and can furthest shorten self-priming time, reduce component abrasion and prolong the service life of the cleaning machine.
The technical scheme adopted for solving the technical problems is as follows:
the emptying structure of self-priming pipeline of high-pressure cleaner includes an emptying pipe connected to the outlet of pump body pipeline, and the emptying pipe has several axial through holes with radial cylindrical body, and the cylindrical body has one emptying valve cavity with air and liquid in different quality to realize the backflow of air exhaust liquid.
In order to optimize the technical scheme, the specific measures adopted further comprise:
the emptying valve core is arranged in the emptying valve cavity in a vertical sliding mode, the emptying valve nut is arranged in a cavity opening of the emptying valve cavity in a sealing spiral mode, the emptying valve spring is sleeved on the emptying valve core, the upper end of the emptying valve spring is propped against a boss formed by the emptying valve core, and the lower end of the emptying valve spring is propped against the emptying valve nut.
The valve core cavity and the air release hole are axially processed on the exhaust valve nut, and the diameter of the valve core cavity is larger than that of the air release hole; the air vent and the valve core cavity are sequentially connected from bottom to top and penetrate through the nut of the evacuation valve.
An arc-shaped sealing surface is formed between the connection of the air vent hole of the air vent valve nut and the valve core cavity, and a conical sealing surface is formed on the air vent valve core; when the cavity is liquid, the liquid pushes the emptying valve core to compress the emptying valve spring to move downwards, so that the conical sealing surface and the arc sealing surface are in sealing fit to seal and block the air vent.
The evacuating valve core is provided with an evacuating duct, and the evacuating duct consists of an axial evacuating duct communicated with the cavity and a radial duct communicated with the axial evacuating duct and the valve core cavity.
Two check valve groups with identical structures are arranged in the pump body pipeline, and each check valve group comprises a first check valve group arranged at an inlet of the pump body pipeline and a second check valve group arranged at an outlet of the pump body pipeline; a plunger cavity is communicated with a pump body pipeline between the first one-way valve group and the second one-way valve group, and a plunger assembly which realizes a suction and discharge function by changing the volume of the plunger cavity is arranged in the plunger cavity.
The check valve group comprises a check valve bracket, a check valve seat, a check valve spring and a check valve core; the check valve support and the check valve seat are matched to form a check valve core cavity, the check valve core is movably arranged in the check valve core cavity, the check valve spring is pressed in the check valve core cavity through the check valve core, the check valve seat is formed with a sealing conical surface, and the front end of the check valve core is formed with a sealing head matched with the sealing conical surface in a sealing mode.
The plunger assembly consists of a plunger capable of reciprocating, a return spring and a spring chuck; the spring chuck positioning clamping sleeve is arranged at the lower end of the plunger, the reset spring is sleeved with the plunger, the upper end of the reset spring is propped against the pump body, and the lower end of the reset spring is propped against the spring chuck.
Compared with the prior art, the utility model has the advantages that the evacuation pipe is arranged at the outlet of the pump body pipeline, the evacuation valve cavity is formed in the cylindrical body of the evacuation pipe, and the evacuation valve for realizing the backflow of the air-discharged liquid by utilizing the mass difference of air and liquid is arranged in the evacuation valve cavity. The air-discharging valve can utilize the advantages of different characteristics of two different media of air and liquid, when the air is in the air-discharging pipe, the air-discharging valve is opened to discharge the air, and when the air is in the air-discharging pipe, the air-discharging valve is closed to enable the liquid to flow back and gather, so that the purposes of rapidly discharging the air in the pipeline, shortening the self-priming service time, protecting and prolonging the service life of the motor pump are achieved.
Drawings
FIG. 1 is a schematic view of the structure of the present utility model in an inhalation state;
FIG. 2 is a schematic view of the structure of the present utility model in a compressed state;
FIG. 3 is a schematic view of the structure of the evacuation valve of the present utility model in an exhaust state;
FIG. 4 is a schematic view of the structure of the evacuation valve of the present utility model in a closed state;
FIG. 5 is a schematic view of the structure of the drain valve nut of the present utility model;
FIG. 6 is a schematic view of the structure of the vent valve cartridge of the present utility model;
fig. 7 is a schematic structural view of the check valve set of the present utility model.
Detailed Description
Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings.
Wherein the reference numerals are as follows: the first check valve group a, the second check valve group B, the plunger chamber Q, the pump body pipe 1, the inlet port 1a, the evacuation pipe 2, the bore 2a, the cylindrical body 21, the evacuation valve chamber 21a, the evacuation valve 3, the evacuation valve element 31, the axial air discharge port 31a, the radial port 31B, the tapered sealing surface 31c, the boss 311, the evacuation valve spring 32, the evacuation valve nut 33, the air discharge port 33a, the valve element chamber 33B, the arc sealing surface 33c, the check valve group 4, the check valve holder 41, the check valve seat 42, the sealing tapered surface 42a, the check valve spring 43, the check valve element 44, the sealing head 441, the plunger assembly 5, the plunger 51, the return spring 52, the spring chuck 53.
The utility model discloses an emptying structure of a self-priming pipeline of a high-pressure cleaning machine, which can furthest shorten self-priming time, rapidly empty air in the pipeline, protect and prolong the service life of a motor pump and reduce the friction function loss of machinery. The emptying structure not only can be matched with a cleaning machine for use; the tool can also be used as an independent universal component to be matched with other tools, so that the application range and the width are expanded;
as shown in fig. 1 to 7 (the small solid arrows in the drawings indicate the flowing direction of liquid, the small hollow arrows indicate the flowing direction of air), the emptying structure of the self-priming pipeline of the high-pressure cleaning machine comprises an emptying pipe 2 connected to the outlet of the pump body pipeline 1, a multi-section hole cavity 2a is formed in the emptying pipe 2 in an axial penetrating way, the aperture of each section of the hole cavity 2a is gradually increased from front to back, and the outlet at the rear end of the hole cavity 2a is communicated with a spray head or a switch valve. A cylindrical body 21 is radially formed on the evacuation pipe 2 relatively near the middle, and an evacuation valve cavity 21a is formed in the cylindrical body 21. The evacuation valve chamber 21a is axially penetrated from the bottom surface of the cylindrical body 21 to the bore 2a, and is vertically communicated with the bore 2 a. The evacuation valve cavity 21a is internally provided with the evacuation valve 3, and the evacuation valve 3 can utilize the characteristics of light molecular weight, difficult compression, uncertain shape, heavy molecular weight, easy compression and deterministic shape of liquid, and is opened to realize air discharge when the air is compressed in the evacuation pipe 2, and closed to realize backflow storage and accumulation of the liquid when the air is compressed in the evacuation pipe 2. The drain valve of the present utility model is assembled by a drain valve body 31, a drain valve spring 32, and a drain valve nut 33, as shown in fig. 3 and 4.
In the embodiment, as shown in fig. 3 and 4, the drain valve core 31 is slidably disposed in the drain valve cavity 21a up and down, the drain valve nut 33 is sealingly and spirally mounted in the cavity opening of the drain valve cavity 21a, the drain valve spring 32 is sleeved on the drain valve core 31, the upper end of the drain valve spring 32 is pressed against a boss 311 formed by the drain valve core 31, and the lower end of the drain valve spring 32 is abutted with the drain valve nut 33.
As shown in fig. 5, the purge valve nut 33 is axially machined with a spool chamber 33b and a purge hole 33a, and the diameter of the spool chamber 33b is larger than the diameter of the purge hole 33a. The bleed hole 33a and the spool chamber 33b are connected in this order from bottom to top through the purge valve nut 33. The drain valve spring 32 is press-fitted in the spool chamber 33b via the drain spool 31. An arc-shaped sealing surface 33c is formed between the connection of the vent hole 33a of the vent valve nut 33 and the spool chamber 33b, and a tapered sealing surface 31c is formed on the vent spool 31. As shown in fig. 4, when the cavity 2a is filled with compressed liquid, the compressed liquid can push the evacuation valve element 31 to compress the evacuation valve spring 32 to move downwards under the mass and pressure of the liquid, so that the conical sealing surface 31c and the arc-shaped sealing surface 33c are in sealing fit to seal the air release hole 33a. At this time, the liquid flows back into the cavity 2a, and the liquid is accumulated in the cavity 2a to form a high-pressure liquid. As shown in fig. 4, when the cavity 2a is compressed air, the weight and pressure of the compressed air are insufficient to push the purge valve element 31 to compress the purge valve spring 32 to close the purge hole 33a because the air is light in weight and is not easily compressed. At this time, the vent valve core 31 pushes the conical sealing surface 31c to separate from the arc sealing surface 33c under the spring force of the vent valve spring 32, and opens the vent hole 33a to release the air in the bore 2a to the atmosphere.
In the embodiment, as shown in fig. 6, a vent hole is formed in the vent valve core 31, and the vent hole is composed of an axial vent hole 31a communicated with the cavity 2a and a radial hole 31b communicated with the axial vent hole 31a and the valve core cavity 33 b.
As shown in fig. 1 and 2, two identical one-way valve groups 4 are installed in the pump body pipeline 1, and the two one-way valve groups 4 comprise a first one-way valve group a installed at an inlet 1a of the pump body pipeline 1 and a second one-way valve group B installed at an outlet of the pump body pipeline 1. A plunger cavity Q is communicated with the pump body pipeline 1 between the first check valve group A and the second check valve group B, and a plunger assembly 5 which realizes the suction and discharge functions by changing the volume of the plunger cavity Q is arranged in the plunger cavity Q.
As shown in fig. 7, the check valve set 4 of the present utility model is composed of a check valve holder 41, a check valve seat 42, a check valve spring 43, and a check valve spool 44. The check valve bracket 41 and the check valve seat 42 are matched to form a check valve core cavity, the check valve core 44 is movably arranged in the check valve core cavity, the check valve spring 43 is pressed into the check valve core cavity through the check valve core 44, the check valve seat 42 is formed with a sealing conical surface 42a, and the front end of the check valve core 44 is formed with a sealing head 441 which is used for being matched with the sealing conical surface 42a in a sealing way.
As can be seen in fig. 1, the plunger assembly 5 consists of a reciprocable plunger 51, as well as a return spring 52 and a spring chuck 53. The spring chuck 53 is positioned and sleeved at the lower end of the plunger 51, the return spring 52 is sleeved with the plunger 1, the upper end of the return spring 52 is propped against the pump body, and the lower end of the return spring 52 is propped against the spring chuck 53.
The evacuation structure of the utility model utilizes the principle of unidirectional conduction and closure of two one-way valve groups 4 arranged in the pump body pipeline 1, combines the evacuation pipe 2 and the evacuation valve 3, can rapidly evacuate air in the pipeline, shortens the self-priming time of the high-pressure cleaning machine, and has the following specific implementation process:
in the initial state of the motor pump, the two one-way valve groups 4 are under the elastic pressure of the one-way valve spring 43, so that the sealing head 441 of the one-way valve core 44 tightly abuts against the sealing conical surface 42a of the one-way valve seat 42, and the one-way conduction and sealing functions are realized.
When the motor rotates to drive the plunger 51 to move downwards, the volume of the plunger cavity Q is increased (as shown in figure 1) to form negative pressure, so that the second one-way valve group B is closed under the action of the one-way valve spring 43, and the first one-way valve group A pushes the one-way valve core 44 open under the action of the negative pressure to open the one-way valve, and an inhalation (negative pressure) process is completed.
When the motor rotates to drive the plunger 51 to move upwards, the volume of the plunger cavity Q is reduced (as shown in figure 2) to form high pressure, so that the first one-way valve group A is closed under the action of the one-way valve spring 43, the second one-way valve group B pushes the one-way valve core 44 open under the action of the high pressure to open the one-way valve, and the pressure is released to the emptying pipe 2 (the cavity 2 a) to finish the discharging process.
And D, continuously acting by a motor, continuously reciprocating the plunger 51, and correspondingly continuously opening or closing the first one-way valve group A and the second one-way valve group B to finish the suction and discharge functions and realize the high-pressure energy storage process.
a: when the compressed air is discharged from the second check valve set B, the compressed air enters the cavity 2a of the emptying pipe 2, and at this time, due to the characteristics of light molecular weight, difficulty in compression, uncertainty in shape and the like of the air, the air does not have enough mass and friction in the cavity 2a to enable the emptying valve 3 to be closed, and as shown in fig. 3, the compressed air in the cavity 2a is discharged to the atmosphere through the air discharge hole of the emptying valve core 31 and the air discharge hole 33a of the emptying valve nut 33.
b: when the compressed liquid (such as water) is discharged from the second check valve set B, the compressed liquid enters the cavity 2a of the emptying pipe 2, and because the compressed liquid has the characteristics of heavy mass, easy compression, deterministic shape and the like, the high-pressure liquid has enough mass pressure in the cavity 2a, so that the emptying valve core 31 is pushed to compress the emptying valve spring 32 to move downwards to close the emptying valve 3, and the compressed liquid can be returned to the cavity 2a for storage and accumulation again because the compressed liquid cannot be discharged through the emptying valve 3. Through continuous pressure input, high-pressure liquid is finally formed, and the physical pressurization function is realized.
The utility model has simple design, few parts, flexible and convenient assembly and use, mature manufacturing condition technology, and can furthest shorten the self-priming time and meet the use requirement at the highest speed; the damage caused by mutual dynamic friction of a pump plunger of the cleaning machine, a sealing element and the like is reduced; the rapid air evacuation in the pipeline is completed, the self-priming service time is shortened, the service life of the motor pump is protected, the functional loss is prolonged, and the like.
The preferred embodiments of this utility model have been described so far that various changes or modifications may be made by one of ordinary skill in the art without departing from the scope of this utility model.
Claims (8)
1. The utility model provides an evacuation structure of high pressure cleaner self priming line, including connecting evacuation pipe (2) at pump body pipeline (1) export, characterized by: the air evacuation pipe (2) is provided with a multi-section cavity (2 a) in an axial through mode, the air evacuation pipe (2) is provided with a cylindrical body (21) in a radial mode, an air evacuation valve cavity (21 a) which is vertically communicated with the cavity (2 a) is formed in the cylindrical body (21), the air evacuation valve cavity (21 a) is provided with an air evacuation valve (3) which utilizes the difference of air and liquid mass to realize air discharge liquid backflow, and the air evacuation valve (3) is formed by assembling an air evacuation valve core (31), an air evacuation valve spring (32) and an air evacuation valve nut (33).
2. The evacuation structure of a self-priming line of a high pressure washer of claim 1, wherein: the emptying valve core (31) is arranged in the emptying valve cavity (21 a) in a vertical sliding mode, the emptying valve nut (33) is arranged in the cavity opening of the emptying valve cavity (21 a) in a sealing spiral mode, the emptying valve spring (32) is sleeved on the emptying valve core (31), the upper end of the emptying valve spring (32) is propped against a boss (311) formed by the emptying valve core (31), and the lower end of the emptying valve spring (32) is propped against the emptying valve nut (33).
3. The evacuation structure of a self-priming line of a high pressure washer according to claim 2, wherein: the evacuation valve nut (33) is axially provided with a valve core cavity (33 b) and a vent hole (33 a), and the diameter of the valve core cavity (33 b) is larger than that of the vent hole (33 a); the air vent (33 a) and the valve core cavity (33 b) are sequentially connected from bottom to top and penetrate through the air vent valve nut (33).
4. A self priming line evacuation structure for a high pressure cleaner as defined in claim 3, wherein: an arc-shaped sealing surface (33 c) is formed between the connection of the air vent hole (33 a) of the air vent valve nut (33) and the valve core cavity (33 b), and a conical sealing surface (31 c) is formed on the air vent valve core (31); when the cavity (2 a) is filled with liquid, the liquid pushes the emptying valve core (31) to compress the emptying valve spring (32) to move downwards, so that the conical sealing surface (31 c) is in sealing fit with the arc-shaped sealing surface (33 c) to seal the air release hole (33 a).
5. The evacuation structure of a self-priming line of a high pressure washer of claim 4, wherein: the evacuation valve core (31) is internally provided with a deflation pore canal, and the deflation pore canal consists of an axial deflation pore canal (31 a) communicated with the cavity (2 a) and a radial pore canal (31 b) used for communicating the axial deflation pore canal (31 a) and the valve core cavity (33 b).
6. The evacuation structure of a self-priming line of a high pressure washer of claim 5, wherein: two check valve groups (4) with identical structures are arranged in the pump body pipeline (1), and the two check valve groups (4) comprise a first check valve group (A) arranged at an inlet (1 a) of the pump body pipeline (1) and a second check valve group (B) arranged at an outlet of the pump body pipeline (1); the pump body pipeline (1) between the first one-way valve group (A) and the second one-way valve group (B) is communicated with a plunger cavity (Q), and a plunger assembly (5) which realizes a suction and discharge function by changing the volume of the plunger cavity (Q) is arranged in the plunger cavity (Q).
7. The evacuation structure of a self-priming line of a high pressure washer of claim 6, wherein: the one-way valve group (4) comprises a one-way valve bracket (41), a one-way valve seat (42), a one-way valve spring (43) and a one-way valve core (44); the check valve support (41) and the check valve seat (42) are matched to form a check valve core cavity, the check valve core (44) is movably arranged in the check valve core cavity, the check valve spring (43) is pressed into the check valve core cavity through the check valve core (44), the check valve seat (42) is formed with a sealing conical surface (42 a), and the front end of the check valve core (44) is formed with a sealing head (441) which is used for being matched with the sealing conical surface (42 a) in a sealing mode.
8. The evacuation structure of a self-priming line of a high pressure washer of claim 7, wherein: the plunger assembly (5) consists of a plunger (51) capable of reciprocating, a return spring (52) and a spring chuck (53); the spring chuck (53) is positioned and sleeved at the lower end of the plunger (51), the reset spring (52) is sleeved with the plunger (51), the upper end of the reset spring (52) is propped against the pump body, and the lower end of the reset spring (52) is propped against the spring chuck (53).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322161087.8U CN220547431U (en) | 2023-08-11 | 2023-08-11 | Emptying structure of self-priming pipeline of high-pressure cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322161087.8U CN220547431U (en) | 2023-08-11 | 2023-08-11 | Emptying structure of self-priming pipeline of high-pressure cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220547431U true CN220547431U (en) | 2024-03-01 |
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ID=90008582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322161087.8U Active CN220547431U (en) | 2023-08-11 | 2023-08-11 | Emptying structure of self-priming pipeline of high-pressure cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220547431U (en) |
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2023
- 2023-08-11 CN CN202322161087.8U patent/CN220547431U/en active Active
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