CN211678333U

CN211678333U - Automatic starting and stopping mechanism of high-pressure cleaning machine

Info

Publication number: CN211678333U
Application number: CN202020088921.9U
Authority: CN
Inventors: 陈豪
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-10-16
Anticipated expiration: 2030-01-15

Abstract

The utility model provides a high pressure cleaner's automatic mechanism that opens and shuts belongs to cleaning machine technical field. The motor and the cleaning gun of the existing cleaning machine can not be automatically started and stopped without load. The pump body of the automatic start-stop mechanism of the high-pressure cleaning machine is provided with a control cavity, the pressure regulating valve divides the pressure regulating cavity into an upper cavity and a lower cavity, a through hole, a pressure relief hole and a water outlet hole are formed in the lower cavity, the side wall of the upper cavity is provided with a first pressure regulating hole communicated with the middle of the control cavity and a second pressure regulating hole communicated with the end part in a water outlet pipeline, the front end part of the control cavity is fixedly provided with a sealing plug, the front side of the sealing plug is provided with a point-action switch for controlling the start of the high-pressure cleaning machine, the control cavity is internally provided with a piston capable of sliding in the control cavity along the front-back direction, the front end of the piston is fixedly provided with. The utility model discloses simple structure, convenient operation can make the motor no-load start.

Description

Automatic starting and stopping mechanism of high-pressure cleaning machine

Technical Field

The utility model belongs to the technical field of the cleaning machine, refer in particular to an automatic start-stop mechanism of high pressure cleaner.

Background

At present, the operation of a power switch and a cleaning switch gun is separated during most of the operation of the existing electric high-pressure cleaning, so that the intellectualization is insufficient, and the use convenience of operators is reduced. Meanwhile, when the cleaning machine is started, the pressure in the pump can be suddenly increased, but the power of the motor cannot reach the power during working immediately, namely the load during starting is greater than the rated load of the machine (overload starting), the motor is easy to cause a stalling phenomenon at the moment, and the motor can be burnt down seriously.

Disclosure of Invention

The utility model aims at providing a can realize that high pressure cleaner opens the mechanism that stops along with switch rifle action automation.

The purpose of the utility model is realized like this:

the utility model provides a high pressure cleaner's automatic start-stop mechanism, includes the pump body and locates water intake pipe and outlet pipe way on the pump body, be equipped with the pressure regulating chamber in the pump body, the bottom in pressure regulating chamber is equipped with the pressure release hole with the water intake pipe intercommunication, be equipped with the apopore with the outlet pipe way intercommunication on the lateral wall of tip under the pressure regulating chamber, can be equipped with the stifled dead check valve of apopore when closing the rifle in the outlet pipe way, the pressure regulating intracavity can be with the air-vent valve that the pressure release hole was stopped up when being equipped with the rifle, its characterized in that: be equipped with the control chamber on the pump body, the air-vent valve will the pressure regulating chamber is cut apart into cavity and lower cavity, pressure release hole and apopore are all located in the lower cavity, be equipped with the through-hole with control chamber rear end intercommunication on the lateral wall of cavity down, be equipped with on the lateral wall of last cavity with the first pressure regulating hole of control chamber middle part intercommunication and with the second pressure regulating hole of the interior tip intercommunication of outlet pipe way, the front end fixing of control chamber has sealed end cap, the front side of sealed end cap is equipped with the inching switch that control high pressure cleaner started, be equipped with the gliding piston of fore-and-aft direction in the control chamber, the rear end of piston is equipped with the first sealing washer with the inner wall sealing connection in control chamber, the one end in first pressure regulating hole is located between first sealing washer and the sealed end cap, the front end of piston is fixed with can run through sealed end cap, the ejector rod is connected with the sealing plug in a sliding and sealing mode, and a first spring capable of driving the ejector rod to move forwards and pressing the inching switch to enable the high-pressure cleaning machine to be started is arranged between the rear end of the piston and the rear side face of the controller.

In the automatic starting and stopping mechanism of the high-pressure cleaning machine, the rear end face of the piston is provided with a first groove matched with the first spring, the rear end face of the control cavity is provided with a second groove matched with the first spring, and the through hole is communicated with the bottom of the second groove.

In foretell high pressure cleaner's automatic start-stop mechanism, the air-vent valve is including the pressure regulating pole, the top of pressure regulating pole is equipped with the second spring that the drive pressure regulating pole moved down and plugged up the pressure release hole, the indoor water pressure increase of epicoele can drive the pressure regulating pole and shift up and make the lower tip and the pressure release hole separation of pressure regulating pole.

In the automatic start-stop mechanism of the high-pressure cleaning machine, the pressure regulating valve comprises a positioning sleeve, the upper end and the lower end of the positioning sleeve are respectively connected with the upper end and the middle part of a pressure regulating cavity in a sealing manner, an annular groove which can facilitate the inner wall of the pressure regulating cavity to form an upper cavity is arranged in the middle of the positioning sleeve, a first guide hole and a second guide hole which are coaxial with the positioning sleeve are arranged in the middle of the positioning sleeve, the diameter of the first guide hole is larger than that of the second guide hole, the lower end of the first guide hole is communicated with the upper end of the second guide hole, the upper end part of the pressure regulating rod penetrates through the second guide hole and is connected with the second guide hole in a sealing and sliding manner, an annular bulge is formed outside the upper end of the pressure regulating rod, the annular bulge is connected with the inner wall of the first guide hole in a sealing and sliding manner, when the pressure regulating rod blocks the pressure relief hole, a gap exists between the annular bulge and the lower, and a third pressure regulating hole communicated with the upper cavity and the first guide hole is arranged in the annular groove, and the inner end of the third pressure regulating hole is positioned in a gap between the annular protrusion and the lower port of the first guide hole.

In foretell high pressure cleaner's automatic start-stop mechanism, the outside shaping of the back tip of sealed end cap has hexagonal nut form arch, be equipped with the spacing groove on the lateral surface of tip before the sealed end cap, the spacing groove is the annular and with the coaxial setting of sealed end cap, electric switch locates in the box body, the shaping has connecting portion on the box body, the front end of ejector pin can pass connecting portion and support with electric switch and lean on, the back pot head of connecting portion is located the preceding tip of sealed end cap, be equipped with on the back tip of connecting portion with spacing groove complex spacing hole, wear to be equipped with the middle part and the spacing groove joint of gag lever post and this gag lever post in the spacing hole.

In the automatic start-stop mechanism of the high-pressure cleaning machine, the rear end of the connecting part is fixedly connected with a cover body, and the cover body is provided with a positioning hole matched with the nut-shaped protrusion.

The working principle is as follows: when the gun is closed, the water pressure in the water outlet pipeline is increased to enable the check valve to block a water outlet hole, the upper chamber of the pressure regulating cavity is communicated with the water outlet pipeline, the pressure in the upper chamber is increased at the moment, the pressure increase of the upper chamber can drive the pressure regulating rod to move upwards so that the lower chamber is communicated with the water inlet pipeline through the pressure relief hole, the pressure of the lower chamber and the high-pressure water storage pipeline in the pump body is relieved, meanwhile, the pressure increase of the upper chamber can cause the pressure between the first sealing ring and the sealing plug to be increased, so that the piston in the control cavity is driven to move backwards and drive the ejector rod fixed at the front end of the piston to move backwards, the front end of the ejector rod is separated from the inching switch, the inching switch is disconnected to cause the power failure; when the gun is started, the water pressure in the water outlet pipeline is reduced, the pressure in the upper cavity chamber communicated with the water storage pipeline is also reduced, so that the pressure between the first sealing ring and the sealing plug is reduced, the piston moves forwards under the driving of the first spring and enables the ejector rod to abut against the inching switch to enable the inching switch to be communicated, meanwhile, due to the fact that the pressure in the upper cavity chamber is reduced, the pressure adjusting rod moves downwards under the action of the second spring and blocks the pressure relief hole, the inching switch is communicated to enable the high-pressure cleaning machine to be powered on, the pump body starts to work to pump water in the low-pressure water storage pipe into the high-pressure water storage pipe to form high-pressure water, the water pressure in the lower cavity chamber rises again and pushes the check valve through the water outlet hole.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses an automatic start-stop mechanism simple structure, convenient operation, high pressure cleaner's motor no-load starts, extension motor life.

2. The utility model discloses direct pressure through the air-vent valve in with the outlet conduit leads the control intracavity to the control piston moves back makes high pressure cleaner's motor outage, and the structure is more simple, and stability is higher.

Drawings

Fig. 1 is an overall sectional view of the present invention.

Fig. 2 is a cross-sectional view of the pump body of the present invention.

Fig. 3 is a cross-sectional view of the present invention at the control chamber.

In the figure, 1, a pump body; 11. a water inlet pipeline; 12. a water outlet pipeline; 121. a check valve; 13. a pressure regulating cavity; 131. an upper chamber; 132. a lower chamber; 133. a first pressure regulating hole; 134. a second pressure regulating hole; 14. a control chamber; 15. a pressure relief vent; 16. a water outlet hole; 17. a through hole; 2. a pressure regulating valve; 21. a pressure regulating rod; 211. an annular projection; 22. a positioning sleeve; 221. an annular groove; 222. a first guide hole; 223. a second guide hole; 224. a third pressure regulating hole; 23. a second spring; 3. sealing the plug; 31. a nut-shaped protrusion; 32. a limiting groove; 4. a box body; 41. a jog switch; 42. a connecting portion; 43. positioning holes; 44. a limiting hole; 45. a limiting rod; 51. a piston; 52. a top rod; 53. a first seal ring; 54. a first spring; 55. a first groove; 56. a second groove.

Detailed Description

The invention will be further described with reference to specific embodiments in conjunction with the accompanying drawings, see fig. 1-3:

the automatic start-stop mechanism of the high-pressure cleaning machine comprises a pump body 1, a water inlet pipeline 11 and a water outlet pipeline 12 which are arranged on the pump body 1, a pressure regulating cavity 13 is arranged in the pump body 1, a pressure relief hole 15 communicated with the water inlet pipeline 11 is arranged at the bottom of the pressure regulating cavity 13, a water outlet hole 16 communicated with the water outlet pipeline 12 is arranged on the side wall of the lower end part of the pressure regulating cavity 13, a check valve 121 capable of blocking the water outlet hole 16 when a gun is closed is arranged in the water outlet pipeline 12, a pressure regulating valve 2 capable of blocking the pressure relief hole 15 when the gun is opened is arranged in the pressure regulating cavity 13, a control cavity 14 is arranged on the pump body 1, the pressure regulating valve 2 divides the pressure regulating cavity 13 into an upper cavity 131 and a lower cavity 132, the pressure relief hole 15 and the water outlet hole 16 are both arranged in the lower cavity 132, a through hole 17 communicated with the rear end of the control cavity 14 is arranged on the side wall of the lower cavity 132, a sealing plug 3 is fixed at the front end part of the control cavity 14, a inching switch 41 for controlling the high-pressure cleaning machine to start is arranged at the front side of the sealing plug 3, a piston 51 capable of sliding in the control cavity 14 along the front-back direction is arranged in the control cavity 14, a first sealing ring 53 in sealing connection with the inner wall of the control cavity 14 is arranged at the rear end part of the piston 51, one end of a first pressure regulating hole 133 is arranged between the first sealing ring 53 and the sealing plug 3, a mandril 52 capable of penetrating through the sealing plug 3 is fixed at the front end of the piston 51, the mandril 52 is in sliding sealing connection with the sealing plug 3, and a first spring 54 capable of driving the mandril 52 to move forwards and pressing the inching switch 41 to start the high-pressure cleaning machine is arranged between the rear end of the piston 51 and the; a first groove 55 matched with the first spring 54 is arranged on the rear end face of the piston 51, a second groove 56 matched with the first spring 54 is arranged on the rear end face of the control cavity 14, and the through hole 17 is communicated with the bottom of the second groove 56. The automatic start-stop mechanism of the utility model has simple structure and convenient operation, and the motor of the high-pressure cleaning machine is started without load, thereby prolonging the service life of the motor; in addition, the automatic start and stop mechanism directly guides the pressure in the water outlet pipeline 12 to the control cavity 14 through the pressure regulating valve 2, so that the control piston 51 moves backwards to cut off the power of a motor of the high-pressure cleaning machine, the structure is simpler, and the stability is higher.

As shown in fig. 1, the pressure regulating valve 2 includes a pressure regulating rod 21 and a positioning sleeve 22, a second spring 23 for driving the pressure regulating rod 21 to move downwards and blocking the pressure relief hole 15 is arranged above the pressure regulating rod 21, and the water pressure increase in the upper chamber 131 can drive the pressure regulating rod 21 to move upwards and separate the lower end of the pressure regulating rod 21 from the pressure relief hole 15; the upper end and the lower end of the positioning sleeve 22 are respectively connected with the upper end and the middle part of the pressure regulating cavity 13 in a sealing way, the middle part of the positioning sleeve 22 is provided with an annular groove 221 which is convenient for the inner wall of the pressure regulating cavity 13 to enclose an upper cavity 131, the middle part of the positioning sleeve 22 is provided with a first guide hole 222 and a second guide hole 223 which are coaxial with the positioning sleeve 22, the diameter of the first guide hole 222 is larger than that of the second guide hole 223, the lower end of the first guide hole 222 is communicated with the upper end of the second guide hole 223, the upper end part of the pressure regulating rod 21 passes through the second guide hole 223 and is connected with the second guide hole 223 in a sealing and sliding way, the upper end of the pressure regulating rod 21 is outwards formed with an annular bulge 211, the annular bulge 211 is connected with the inner wall of the first guide hole 222 in a sealing and sliding way, when the lower end of the pressure regulating rod 21 blocks the pressure relief hole 15, a gap is formed between the annular bulge 211 and the lower end opening of the first guide hole 222, the inner end of the third pressure-regulating hole 224 is located in the gap between the annular protrusion 211 and the lower port of the first guide hole 222.

As shown in fig. 3, a hexagonal nut-shaped protrusion 31 is formed outward at the rear end of the sealing plug 3, a limiting groove 32 is formed on the outer side surface of the front end of the sealing plug 3, the limiting groove 32 is annular and is coaxially arranged with the sealing plug 3, the electric switch is arranged in the box body 4, a connecting part 42 is formed on the box body 4, the front end of the ejector rod 52 can penetrate through the connecting part 42 and abut against the electric switch, the rear end of the connecting part 42 is sleeved on the front end of the sealing plug 3, a limiting hole 44 matched with the limiting groove 32 is formed in the rear end of the connecting part 42, a limiting rod 45 penetrates through the limiting hole 44, and the middle part of the limiting rod 45 is clamped with the limiting groove 32; the rear end of the connecting portion 42 is fixedly connected with a cover body, and the cover body is provided with a positioning hole 43 matched with the nut-shaped projection 31.

The working principle is as follows: when the gun is shut down, the water pressure in the water outlet pipeline 12 is increased to enable the check valve 121 to block the water outlet hole 16, the upper chamber 131 of the pressure regulating cavity 13 is communicated with the water outlet pipeline 12, at the moment, the pressure in the upper chamber 131 is increased, the pressure increase in the upper chamber 131 can drive the pressure regulating rod 21 to move upwards so as to enable the lower chamber 132 to be communicated with the water inlet pipeline 11 through the pressure relief hole 15, the pressure of the lower chamber 132 and the high-pressure water storage pipeline in the pump body 1 is relieved, meanwhile, the pressure increase in the upper chamber 131 can cause the pressure between the first sealing ring 53 and the sealing plug 3 to be increased, so that the piston 51 in the control cavity 14 is driven to move backwards and drive the ejector rod 52 fixed at the front end of the piston 51 to move backwards, the front end of the ejector rod 52 is separated from the inching switch 41, the inching switch 41 is disconnected to; when the gun is started, the water pressure in the water outlet pipeline 12 is reduced, the pressure in the upper chamber 131 communicated with the water storage pipeline is reduced, so that the pressure between the first sealing ring 53 and the sealing plug 3 is reduced, the piston 51 moves forward under the driving of the first spring 54 and enables the ejector rod 52 to push against the inching switch 41 to enable the inching switch 41 to be communicated, meanwhile, due to the fact that the pressure in the upper chamber 131 is reduced, the pressure adjusting rod 21 moves downwards under the action of the second spring 23 and blocks the pressure relief hole 15, the inching switch 41 is communicated to enable the high-pressure cleaning machine to be electrified, the pump body 1 starts to work, water in the low-pressure water storage pipe is pumped into the high-pressure water storage pipe to form high-pressure water, the water pressure in the lower chamber 132 is increased again and pushes the check valve 121 through the water outlet hole 16, and the spray gun normally works.

The above-mentioned embodiment is only the preferred embodiment of the present invention, and does not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a high pressure cleaner's automatic mechanism that opens and shuts, includes the pump body (1) and locates intake pipe (11) and outlet conduit (12) on the pump body (1), be equipped with pressure regulating chamber (13) in the pump body (1), the bottom in pressure regulating chamber (13) is equipped with pressure release hole (15) with intake pipe (11) intercommunication, be equipped with apopore (16) with outlet conduit (12) intercommunication on the lateral wall of tip under pressure regulating chamber (13), can be equipped with during the rifle of closing in outlet conduit (12) and block up dead check valve (121) with apopore (16), can be equipped with during the rifle of opening in pressure regulating chamber (13) with pressure-regulating valve (2) that pressure release hole (15) were stopped up, its characterized in that: be equipped with control chamber (14) on the pump body (1), the air-vent valve (2) will pressure regulating chamber (13) is cut apart into cavity (131) and cavity (132) down, pressure release hole (15) and apopore (16) are all located in cavity (132) down, be equipped with on the lateral wall of cavity (132) down with through-hole (17) of control chamber (14) rear end intercommunication, go up be equipped with on the lateral wall of cavity (131) with first pressure regulating hole (133) of control chamber (14) middle part intercommunication and with outlet conduit (12) second pressure regulating hole (134) of tip intercommunication, the preceding end fixing of control chamber (14) has sealed end cap (3), the front side of sealed end cap (3) is equipped with inching switch (41) that control high pressure cleaner starts, be equipped with in control chamber (14) and follow gliding piston (51) of fore-and aft direction in control chamber (14), the rear end of piston (51) is equipped with first sealing washer (53) with the inner wall sealing connection of control chamber (14), the one end in first pressure regulating hole (133) is located between first sealing washer (53) and sealed end cap (3), the front end of piston (51) is fixed with ejector pin (52) that can run through sealed end cap (3), ejector pin (52) and sealed end cap (3) slidable sealing connection, be equipped with between the rear end of piston (51) and the trailing flank of controller and drive ejector pin (52) and move forward and press a little switch (41) and make first spring (54) that high pressure cleaning machine started.

2. The automatic start and stop mechanism of a high pressure washer according to claim 1, wherein: the rear end face of the piston (51) is provided with a first groove (55) matched with the first spring (54), the rear end face of the control cavity (14) is provided with a second groove (56) matched with the first spring (54), and the through hole (17) is communicated with the bottom of the second groove (56).

3. The automatic start and stop mechanism of a high pressure washer according to claim 1, wherein: the pressure regulating valve (2) comprises a pressure regulating rod (21), a second spring (23) which drives the pressure regulating rod (21) to move downwards and block the pressure relief hole (15) is arranged above the pressure regulating rod (21), and the water pressure in the upper chamber (131) is increased to drive the pressure regulating rod (21) to move upwards and separate the lower end part of the pressure regulating rod (21) from the pressure relief hole (15).

4. The automatic start and stop mechanism of a high pressure washer according to claim 3, wherein: the pressure regulating valve (2) comprises a positioning sleeve (22), the upper end and the lower end of the positioning sleeve (22) are respectively connected with the upper end and the middle part of a pressure regulating cavity (13) in a sealing manner, the middle part of the positioning sleeve (22) is provided with an annular groove (221) which is convenient for the inner wall of the pressure regulating cavity (13) to enclose an upper cavity (131), the middle part of the positioning sleeve (22) is provided with a first guide hole (222) and a second guide hole (223) which are coaxial with the positioning sleeve (22), the diameter of the first guide hole (222) is larger than that of the second guide hole (223), the lower end of the first guide hole (222) is communicated with the upper end of the second guide hole (223), the upper end part of the pressure regulating rod (21) penetrates through the second guide hole (223) and is connected with the second guide hole (223) in a sealing and sliding manner, the upper end of the pressure regulating rod (21) is outwards molded with an annular bulge (211), and the annular bulge (211) is connected with the inner wall of the first guide hole (222) in, when the lower extreme of pressure regulating pole (21) is blockked up pressure release hole (15), there is the clearance between the lower port of annular arch (211) and first guiding hole (222), be equipped with third pressure regulating hole (224) of intercommunication upper chamber (131) and first guiding hole (222) in annular groove (221), the inner of third pressure regulating hole (224) is located the clearance of port under annular arch (211) and first guiding hole (222).

5. The automatic start and stop mechanism of a high pressure washer according to any one of claims 1 to 4, characterized in that: the outside shaping of back tip of sealed end cap (3) has hexagonal nut form arch (31), be equipped with spacing groove (32) on the outside face of tip before sealed end cap (3), spacing groove (32) are annular and with sealed end cap (3) coaxial setting, electric switch locates in box body (4), the shaping is equipped with connecting portion (42) on box body (4), the front end of ejector pin (52) can pass connecting portion (42) and support with electric switch and lean on, the back tip cover of connecting portion (42) is located the preceding tip of sealed end cap (3), be equipped with on the back tip of connecting portion (42) with spacing groove (32) complex spacing hole (44), wear to be equipped with the middle part and the spacing groove (32) joint of gag lever post (45) and this gag lever post (45) in spacing hole (44).

6. The automatic start and stop mechanism of a high pressure washer according to claim 5, wherein: the rear end of the connecting part (42) is fixedly connected with a cover body, and the cover body is provided with a positioning hole (43) matched with the nut-shaped bulge (31).