CN212429861U

CN212429861U - Start and stop structure of high pressure cleaner

Info

Publication number: CN212429861U
Application number: CN202020589509.5U
Authority: CN
Inventors: 黄新
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2021-01-29
Anticipated expiration: 2030-04-20

Abstract

The utility model provides a high pressure cleaner open and stop structure belongs to high pressure cleaner technical field. It has solved the fragile problem of current sealing post. This high pressure cleaner open and stop structure, including the valve body that has well cavity, set up the guiding hole in the cavity in the intercommunication on the terminal surface of valve body, be provided with the valve rod assembly that can follow the axial displacement of valve body in the valve body and make valve rod assembly have the spring towards inlet end removal trend all the time, in the guiding hole is worn to establish by valve rod assembly's one end, well cavity is including the sealed chamber that sets up along the axial of valve body, and valve rod assembly is including being located sealed intracavity and can follow the axially sliding's of sealed chamber sealed post, sets up the high pressure water step-down passageway in the sealed chamber of intercommunication along the axial of valve body on another terminal surface of valve body. This structure reduces the pressure of the high pressure water that is used in on the sealed post, and then has improved the life of sealed post.

Description

Start and stop structure of high pressure cleaner

Technical Field

The utility model belongs to the technical field of high pressure cleaner, a high pressure cleaner opens and stops structure is related to.

Background

The high-pressure cleaning machine is a machine which enables a high-pressure plunger pump to generate high-pressure water through a power device to wash the surface of an object, and can peel off and wash away dirt so as to achieve the purpose of cleaning the surface of the object. The traditional high-pressure cleaning machine mainly comprises a spray gun and a plunger type water pump, wherein the on-off control of the spray gun and the on-off control of a water pump power supply are mutually independent, the opening and closing of the spray gun are controlled by a trigger, and the starting and closing of the water pump power supply are controlled by a microswitch arranged in the water pump; when the trigger of the spray gun is pulled again, the spray gun sprays water outwards, so that the water pressure in the spray gun is reduced, the ejector rod moves back to reset, the microswitch is loosened, and the water pump is restarted.

At present, chinese patent network discloses a high pressure cleaner gun stop device [ application publication No.: CN105435986A disclosure, which includes a plunger pump body, the plunger pump body is connected with a water outlet tee joint, the water outlet tee joint is provided with a stroke hole and a first through hole communicated with the stroke hole, the connecting seat is connected with the stroke hole, the connecting seat is provided with a movable hole communicated with the stroke hole, one end of the connecting seat is connected with a micro switch box, a micro switch is arranged in the micro switch box, a push rod is arranged in the stroke hole, one end of the push rod passes through the movable hole and is exposed outside the connecting seat, an opening and closing spring capable of making the push rod perform reciprocating movement is arranged in the stroke hole, the push rod comprises a rod seat and a rod body connected with the rod seat, the diameter of the rod seat is greater than that of the rod body, the opening and closing spring is sleeved outside the rod body, an annular groove is arranged on the outer.

When the high-pressure cleaning machine is used, the high-pressure cleaning machine outputs high-pressure water, the first through hole is directly communicated with the stroke hole, the high-pressure water directly enters the stroke hole through the first through hole and acts on the valve block, because the depth of the first through hole is shallow and the aperture is large, the path of high-pressure water flowing through the first through hole is short, the large aperture is not beneficial to the pressure reduction of the high-pressure water, so that the energy loss is less in the process that high-pressure water flows through the first through hole, the water pressure of the high-pressure water entering the stroke hole is very high, the high-pressure water acts on the valve block and is easy to quickly eject the valve block out of the stroke hole, and when the high-pressure cleaning machine is used under the ultrahigh-pressure working condition, for example, when the output water pressure of the high-pressure cleaning machine reaches 300-500 kg, the high-pressure water makes the valve block move too fast, so that the friction between the sealing ring and the hole wall of the stroke hole is severe, the sealing ring is very easy to damage, and the service life of the gun closing stopping device is short.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a high pressure cleaner open and stop structure, the utility model aims to solve the technical problem that: how to reduce the pressure of the high pressure water acting on the sealing column.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a high pressure cleaner open and stop structure, is including the valve body that has well cavity, set up the guiding hole of cavity in the intercommunication on the terminal surface of valve body, be provided with the valve rod assembly that can follow the axial displacement of valve body in the valve body and make valve rod assembly have the spring towards inlet end removal trend all the time, establish in the guiding hole is worn to the one end of valve rod assembly, well cavity is including the sealed chamber that sets up along the axial of valve body, valve rod assembly is including being located sealed intracavity and can following the axially sliding's in sealed chamber sealed post, a serial communication port pressure reduction passageway in sealed chamber is seted up along the axial of valve body on another terminal surface of valve body.

This open and stop the structrual installation and use on high pressure cleaner, when high pressure cleaner uses under the superhigh pressure operating mode, the back is closed to high pressure cleaner's spray gun, the water pressure of the inside high pressure water of high pressure cleaner reaches 300 ~ 500 kilograms, the high pressure water enters into the sealed chamber in the valve body through high pressure water step-down passageway, the outer high pressure water flow of valve is behind high pressure water step-down passageway, the water pressure of high pressure water has obtained apparent reduction, the power that the high pressure water after the decompression is used in on the sealing post is less, the sealing post is promoted slowly, make sealing post and whole valve rod assembly move towards the guiding hole side, make valve rod assembly stretch out the valve body from the guiding hole and lean on high pressure cleaner's water pump switch, make high pressure cleaner's water pump. Because the sealing column moves slowly in the sealing cavity, the friction force between the sealing ring on the sealing column and the inner wall of the sealing cavity is reduced, the service life of the sealing ring is prolonged, and the service life of the start-stop structure is prolonged.

In the structure of opening of foretell high pressure cleaner, high pressure water depressurization passageway includes inlet opening, inlet channel one and inlet channel two, the inlet opening is located the terminal surface of valve body, the inlet opening is linked together with the one end of inlet channel one, the other end of inlet channel one is linked together with the one end of inlet channel two, the other end and the sealed chamber of inlet channel two are linked together. Through the setting of this structure, the outer water under high pressure of valve body enters into sealed intracavity and acts on sealed post through inlet opening, inhalant canal one and inhalant canal two, and inhalant canal one makes the inlet opening longer to the route between the sealed chamber with the setting of inhalant canal two, has prolonged the route of flowing through of water under high pressure in other words, plays better decompression effect to the water under high pressure.

In the start-stop structure of the high-pressure cleaning machine, the inner diameter of the water inlet channel II is smaller than that of the sealing cavity. Through the arrangement of the structure, the design that the inner diameter of the water inlet channel II is smaller than that of the sealing cavity enables high-pressure water to flow into the sealing cavity from the water inlet channel II to realize pressure reduction.

In the start-stop structure of the high-pressure cleaning machine, the inner diameter of the first water inlet channel is smaller than the inner diameter of the second water inlet channel. Through the setting of this structure, the design that the internal diameter of inhalant canal one is less than the internal diameter of inhalant canal two makes the high pressure water flow in the in-process of inhalant canal two from inhalant canal one and realizes the decompression, high pressure water in the inhalant canal one enters into inhalant canal two, because the internal diameter of inhalant canal two is greater than the internal diameter of inhalant canal one, inhalant canal two can't be filled up by the high pressure water once, slowly fill up by the high pressure water in the inhalant canal two, inhalant canal two plays the effect of a pressure cushion chamber, make the pressure that is used in on the sealing post grow gradually, avoid the sealing post atress too big in the twinkling of an eye.

In the start-stop structure of the high-pressure cleaning machine, the water inlet hole is conical, and the minimum inner diameter of the water inlet hole is the same as the inner diameter of the first water inlet channel. Through the setting of this structure, the inlet opening is the toper and makes the pore wall of inlet opening can play the effect that stops to the water under high pressure, reduces the energy of water under high pressure, and then reduces the water pressure that enters into the water supply channel one interior water under high pressure.

In the start-stop structure of the high-pressure cleaning machine, the port of the water inlet channel II facing the sealing cavity is a flared opening communicated with the sealing cavity. Through the setting of this structure, the design of flaring reduces the impact in the twinkling of an eye that the high pressure water produced sealed post, improves the stability that sealed post removed in sealed intracavity.

In the start-stop structure of the high-pressure cleaning machine, the valve rod assembly further comprises an ejector rod and a support table, the support table is located between the ejector rod and the sealing column, one end of the ejector rod is connected with the support table, one end of the spring abuts against the support table, and the other end of the spring abuts against the valve body.

Compared with the prior art, the utility model discloses a high pressure cleaner open and stop structure has following advantage: this open when stopping structure and using, behind the high pressure water depressurization passageway of the outer high pressure water flow of valve, the water pressure of high pressure water has obtained apparent reduction, and the power that the high pressure water after the decompression acted on sealed post is less, and sealed post is promoted slowly, because the removal of sealed post in sealed intracavity is slow, has reduced the frictional force between the sealing washer on the sealed post and the sealed intracavity wall, has improved the life of sealing washer to improve and stopped the life who stops the structure.

Drawings

Fig. 1 is a schematic sectional structure diagram of embodiment 1 of the present invention.

Fig. 2 is an explosion structure diagram of embodiment 1 of the present invention.

Fig. 3 is a schematic perspective view of embodiment 1 of the present invention.

Fig. 4 is a schematic sectional structure diagram of embodiment 2 of the present invention.

In the figure, 1, a valve body; 11. a hollow cavity; 110. sealing the cavity; 12. a guide hole; 13. a high-pressure water pressure reducing channel; 131. a water inlet hole; 132. a first water inlet channel; 133. a water inlet channel II; 133a, flaring; 2. a valve stem assembly; 21. sealing the column; 22. a top rod; 23. a support table; 3. a spring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1 and fig. 2, this high pressure cleaner open structure of stopping, including the valve body 1 that has well cavity 11, set up the guiding hole 12 of cavity 11 in the intercommunication on the terminal surface of valve body 1, be provided with the valve rod assembly 2 that can follow the axial displacement of valve body 1 in the valve body 1 and make valve rod assembly 2 have all the time towards keeping away from the spring 3 of the 12 direction moving trend of guiding hole, valve rod assembly 2 still includes ejector pin 22 and brace table 23, brace table 23 is located between ejector pin 22 and the sealed post 21 and the one end of ejector pin 22 is connected with brace table 23, the other end of ejector pin 22 wears to establish in guiding hole 12, the one end of spring 3 supports and leans on brace table 23, the other end supports and leans. The hollow cavity 11 comprises a sealing cavity 110 arranged along the axial direction of the valve body 1, the valve rod assembly 2 comprises a sealing column 21 which is positioned in the sealing cavity 110 and can slide along the axial direction of the sealing cavity 110, and a high-pressure water pressure reducing passage 13 communicated with the sealing cavity 110 is formed in the other end surface of the valve body 1 along the axial direction of the valve body 1. This open and stop the structure and install and use on high pressure cleaner, when high pressure cleaner uses under the superhigh pressure operating mode, for example high pressure cleaner's output water pressure reaches 300 ~ 500 kilograms, the back is closed to high pressure cleaner's spray gun, the water pressure of the inside high pressure water of high pressure cleaner reaches 300 ~ 500 kilograms, the high pressure water passes through high pressure water step-down passageway 13 and enters into the sealed chamber 110 in the valve body 1, the outer high pressure water flow of valve body 1 is behind high pressure water step-down passageway 13, the water pressure of high pressure water has obtained apparent reduction, the high pressure water after the decompression is done and is less on sealed post 21, sealed post 21 is pushed slowly, make sealed post 21, brace table 23 and ejector pin 22 move towards guiding hole 12 side, make ejector pin 22 stretch out outside the valve body 1 from guiding hole 12 and lean on high pressure cleaner's water pump is shut down, make high pressure cleaner's water. Because the sealing column 21 moves slowly in the sealing cavity 110, the friction force between the sealing ring on the sealing column 21 and the inner wall of the sealing cavity 110 is reduced, the service life of the sealing ring is prolonged, and the service life of the start-stop structure is prolonged.

As shown in fig. 1, 2 and 3, the high-pressure water pressure reducing passage 13 includes a water inlet hole 131, a first water inlet passage 132 and a second water inlet passage 133, the water inlet hole 131 is located on the end surface of the valve body 1, the water inlet hole 131 is communicated with one end of the first water inlet passage 132, the other end of the first water inlet passage 132 is communicated with one end of the second water inlet passage 133, and the other end of the second water inlet passage 133 is communicated with the sealing cavity 110. Specifically, the water inlet 131 is conical, the minimum inner diameter of the water inlet 131 is the same as the inner diameter of the first water inlet channel 132, the inner diameter of the first water inlet channel 132 is smaller than the inner diameter of the second water inlet channel 133, the inner diameter of the second water inlet channel 133 is smaller than the inner diameter of the sealed cavity 110, and the port of the second water inlet channel 133 facing the sealed cavity 110 is a flared opening 133a communicated with the sealed cavity 110. High-pressure water outside the valve body 1 enters the sealing cavity 110 through the water inlet hole 131, the first water inlet channel 132 and the second water inlet channel 133 and acts on the sealing column 21, the first water inlet channel 132 and the second water inlet channel 133 enable the path between the water inlet hole 131 and the sealing cavity 110 to be longer, namely the path through which the high-pressure water flows is prolonged, a good pressure reduction effect is achieved on the high-pressure water, the conical shape of the water inlet hole 131 enables the hole wall of the water inlet hole 131 to have a blocking effect on the high-pressure water, the energy of the high-pressure water is reduced, the water pressure of the high-pressure water entering the first water inlet channel 132 is further reduced, the inner diameter of the first water inlet channel 132 is smaller than that of the second water inlet channel 133, pressure reduction is achieved in the process that the high-pressure water flows into the second water inlet channel 133 from the first water inlet channel 132, the high-pressure water in the first water inlet channel 132 enters the second water inlet channel 133, the second water inlet channel 133 cannot be filled with high-pressure water at a time, the second water inlet channel 133 is slowly filled with the high-pressure water, and the second water inlet channel 133 plays a role of a pressure buffer cavity, so that the pressure acting on the sealing column 21 is gradually increased, and the phenomenon that the sealing column 21 is stressed excessively instantly is avoided.

Example 2

As shown in fig. 4, the present embodiment is basically the same as the above embodiment 1, except that: the high-pressure water pressure reducing passage in this embodiment includes a water inlet hole 131 and a water inlet passage 134, and the water inlet passage 134 is formed by combining the water inlet passage one 132 and the water inlet passage two 133.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A start-stop structure of a high-pressure cleaning machine comprises a valve body (1) with a hollow cavity (11), one end face of the valve body (1) is provided with a guide hole (12) communicated with the hollow cavity (11), a valve rod component (2) which can move along the axial direction of the valve body (1) and a spring (3) which enables the valve rod component (2) to always have the trend of moving towards the direction far away from the guide hole (12) are arranged in the valve body (1), one end of the valve rod component (2) penetrates through the guide hole (12), the hollow cavity (11) comprises a sealing cavity (110) which is arranged along the axial direction of the valve body (1), the valve rod assembly (2) comprises a sealing column (21) which is positioned in the sealing cavity (110) and can slide along the axial direction of the sealing cavity (110), the high-pressure water pressure reducing valve is characterized in that a high-pressure water pressure reducing channel (13) communicated with the sealing cavity (110) is formed in the other end face of the valve body (1) along the axial direction of the valve body (1).

2. The start-stop structure of the high-pressure cleaning machine according to claim 1, wherein the high-pressure water pressure reducing channel (13) comprises a water inlet hole (131), a first water inlet channel (132) and a second water inlet channel (133), the water inlet hole (131) is located on the end face of the valve body (1), the water inlet hole (131) is communicated with one end of the first water inlet channel (132), the other end of the first water inlet channel (132) is communicated with one end of the second water inlet channel (133), and the other end of the second water inlet channel (133) is communicated with the sealed cavity (110).

3. The start-stop structure of a high-pressure washer according to claim 2, characterized in that the inner diameter of the water inlet channel II (133) is smaller than the inner diameter of the seal chamber (110).

4. The start-stop structure of a high-pressure washer according to claim 2 or 3, characterized in that the inner diameter of the first water inlet channel (132) is smaller than the inner diameter of the second water inlet channel (133).

5. The start-stop structure of a high-pressure washer according to claim 2 or 3, characterized in that the water inlet hole (131) is conical, and the minimum inner diameter of the water inlet hole (131) is the same as the inner diameter of the water inlet channel I (132).

6. The start-stop structure of the high-pressure cleaning machine according to claim 2 or 3, characterized in that the port of the second water inlet channel (133) facing the sealed cavity (110) is a flared opening (133a) communicated with the sealed cavity (110).

7. The start-stop structure of the high-pressure cleaning machine according to claim 1, characterized in that the valve rod assembly (2) further comprises a push rod (22) and a support platform (23), the support platform (23) is located between the push rod (22) and the sealing column (21), one end of the push rod (22) is connected with the support platform (23), one end of the spring (3) abuts against the support platform (23), and the other end abuts against the valve body (1).