CN217301764U

CN217301764U - Long-life unloading valve

Info

Publication number: CN217301764U
Application number: CN202220148639.4U
Authority: CN
Inventors: 秦国宇
Original assignee: Suzhou Black Cat Qingjie Technology Co ltd
Current assignee: Suzhou Black Cat Qingjie Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-08-26
Anticipated expiration: 2032-01-19

Abstract

The utility model discloses a long-life unloading valve, including the unloading valve carrier, be provided with the unloading valve recess in the unloading valve carrier, the unloading valve recess is provided with a conical disk seat and lower seat from bottom to top, the conical disk seat internal fixation is provided with the case head, the inner wall fixedly connected with case of case head, the top of case is provided with the valve body, the outer wall connection of valve body has the valve gap, wherein, the inner wall of valve body is fixed and is provided with minimum round valve body O shape circle, the fixed O shape circle that is provided with down of minimum round of inner wall of lower seat. The utility model discloses well O type circle is fixed to be set up in the inner wall of valve body and lower seat to change 0 shape circle on the case into interior sealed face sliding construction by former external seal face sliding construction, so that improve the life of 0 shape circle.

Description

Long-life unloading valve

Technical Field

The utility model relates to an off-load valve technical field, in particular to long-life off-load valve.

Background

With the attention of people on the cleaning and sanitary work of environment and objects, the application of pressure liquid cleaning tools is more and more common, wherein the typical application is a high-pressure cleaning machine which mainly comprises a spray gun and a high-pressure water pump, and an unloading valve is used as an important component of the high-pressure water pump to adjust the pressure, ensure the safety and reduce the power consumption.

As shown in figure 1, a traditional unloading valve is characterized in that a plurality of layers of O-shaped rings 2 are arranged outside a valve core 1, the outer rings of the O-shaped rings 2 and a valve body 3 slide in a reciprocating mode, so that the O-shaped rings are quickly abraded, the service life is short, and the problem of water leakage is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a long-life unloading valve to the O shape circle that proposes in solving above-mentioned background art wearing and tearing are fast, thereby the effectual life-span that improves the unloading valve.

In order to achieve the above object, the utility model provides a following technical scheme: the long-service-life unloading valve comprises an unloading valve carrier, wherein an unloading valve groove is formed in the unloading valve carrier, a conical valve seat and a lower seat are arranged in the unloading valve groove from bottom to top, a valve core head is fixedly arranged in the conical valve seat, a valve core is fixedly connected to the inner wall of the valve core head, a valve body is arranged above the valve core, a valve cover is connected to the outer wall of the valve body, at least one circle of valve body O-shaped ring is fixedly arranged on the inner wall of the valve body, and at least one circle of lower seat O-shaped ring is fixedly arranged on the inner wall of the lower seat.

Furthermore, a circle of sundries storage tank is arranged on the outer surface of the upper end of the valve core.

Furthermore, the upper end of case is provided with a spring lower bolster, be provided with round pressure regulating spring on stacking up under the spring, pressure regulating spring's one end and spring lower bolster fixed connection, the other end and the fixed spring upper bolster fixed connection who sets up on the valve gap.

Furthermore, the valve core head is provided with an internal thread, the lower surface of the valve core is provided with an external thread, and the valve core head and the valve core are fixedly connected together through the thread.

Furthermore, an unloading pressure water inlet hole is obliquely formed in the left side surface of the unloading valve carrier, high-pressure water channels are formed in the left side surface and the right side surface of the unloading valve carrier and located below the unloading pressure water inlet hole, and a low-pressure water channel is formed in the lower surface of the unloading valve carrier.

Furthermore, the lower side fixed surface of valve gap is connected with the spacing pad, just the spacing pad passes through the fix with screw and sets up on the valve gap.

The utility model discloses a technological effect and advantage:

1. the utility model discloses well O type circle is fixed to be set up in the inner wall of valve body and lower seat to change 0 shape circle on the case into interior sealed face sliding construction by former external seal face sliding construction, so that improve the life of 0 shape circle.

2. The upper end of the valve core is additionally provided with a sundries storage tank for preventing external entering sundries and abrasion objects generated by rubbing the valve body by the pressure regulating spring from entering the sealing surface of the 0-shaped ring, so that the service life of the 0-shaped ring is further prolonged.

3. The upper pad of the pressure regulating spring is additionally arranged and fixed at the upper end of the valve cover, so that the upper end of the pressure regulating spring can be fixed, and the problem of early damage of the 0-shaped ring caused by abrasion objects generated by obliquely rubbing the valve body when the pressure regulating spring works is solved.

Drawings

Fig. 1 is a schematic sectional structural view of a conventional unloading valve.

Figure 2 is the utility model discloses a sectional structure schematic diagram of discharge valve.

In the figure: 1. a valve core; 2. an O-shaped ring; 3. a valve body; 4. a pressure regulating spring; 5. an unloader valve carrier; 6. an unloading valve groove; 7. a lower seat; 8. a valve cover; 9. a conical valve seat; 10. a valve core head; 11. the valve body is an O-shaped ring; 12. a lower seat O-shaped ring; 13. a sundries storage tank; 14. a limiting pad; 15. a spring lower pad; 16. an unloading pressure water inlet hole; 17. a high-pressure water channel; 18. a low pressure water passage; 19. and the spring is padded.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a long-life unloading valve as shown in figure 2, which comprises an unloading valve carrier 5, wherein an unloading valve groove 6 is arranged in the unloading valve carrier 5, a conical valve seat 9 and a lower seat 7 are arranged in the unloading valve groove 6 from bottom to top, a valve core head 10 is fixedly arranged in the conical valve seat 9, the inner wall of the valve core head 10 is fixedly connected with a valve core 1, a valve body 3 is arranged above the valve core 1, the outer wall of the valve body 3 is connected with a valve cover 8, wherein, the inner wall of the valve body 3 is fixedly provided with at least one circle of valve body O-shaped ring 11, the inner wall of the lower seat 7 is fixedly provided with at least one circle of lower seat O-shaped ring 12, in the embodiment, the inner wall of the valve body 3 is fixedly provided with one circle of valve body O-shaped ring 11, the inner wall of the lower seat 7 is fixedly provided with one circle of lower seat O-shaped ring 12, the valve body O-shaped ring 11 is fixedly arranged on the inner wall of the valve body 3 in an adhesive manner, the lower seat O-shaped ring 12 is fixedly arranged on the inner wall of the lower seat 7 in an adhesive manner.

In this embodiment, a circle of sundries storage tank 13 is formed on the outer surface of the upper end of the valve core 1, so that sundries entering from the outside and abraded objects generated by the pressure regulating spring 4 scraping the valve body 3 are prevented from entering the sealing surface of the 0-shaped ring, and the service life of the 0-shaped ring is further prolonged.

And in this embodiment, the upper end of case 1 is provided with a spring pad 15, spring pad 15 is fixed to be set up in the upper surface of case 1, be provided with round pressure regulating spring 4 on the spring pad 15, the one end and the spring pad 15 fixed connection of pressure regulating spring 4, the other end with fixed spring pad 19 fixed connection who sets up on valve gap 8, spring pad 19 is fixed to be set up on valve gap 8's upper surface, through setting up spring pad 19 for the upper end of spring also obtains fixedly, has avoided pressure regulating spring 4's slope.

In addition, in this embodiment, the valve core head 10 is provided with an internal thread, the lower surface of the valve core 1 is provided with an external thread, the two are fixedly connected together through a thread, during the specific connection, the valve core 1 penetrates through the valve body 3 fixed with the O-shaped ring and the lower seat 7, and then the valve core 1 is matched with the conical valve seat after being fixedly connected with the valve core head 10 through the thread.

Meanwhile, an unloading pressure water inlet hole 16 is obliquely formed in the left side surface of the unloading valve carrier 5, high-pressure water channels 17 are formed in the left side surface and the right side surface of the unloading valve carrier 5, the high-pressure water channels 17 are located below the unloading pressure water inlet hole 16, and a low-pressure water channel 18 is formed in the lower surface of the unloading valve carrier 5.

In this embodiment, the lower side fixed surface of valve gap 8 is connected with spacing pad 14, just spacing pad 14 sets up on valve gap 8 through the fix with screw, and during specific work, after setting pressure through valve gap 8, set up spacing pad 14 and fix spacing pad 14 with set screw.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A long-life unloading valve is characterized in that: the unloading valve comprises an unloading valve carrier (5), wherein an unloading valve groove (6) is formed in the unloading valve carrier (5), a conical valve seat (9) and a lower seat (7) are arranged in the unloading valve groove (6) from bottom to top, a valve core head (10) is fixedly arranged in the conical valve seat (9), a valve core (1) is fixedly connected to the inner wall of the valve core head (10), a valve body (3) is arranged above the valve core (1), a valve cover (8) is connected to the outer wall of the valve body (3), at least one circle of valve body O-shaped ring (11) is fixedly arranged on the inner wall of the valve body (3), and at least one circle of lower seat O-shaped ring (12) is fixedly arranged on the inner wall of the lower seat (7).

2. A long life unloader valve as defined in claim 1 wherein: the outer surface of the upper end of the valve core (1) is provided with a circle of sundries storage tank (13).

3. The long life unloader valve of claim 1, wherein: the upper end of case (1) is provided with a spring lower bolster (15), be provided with round pressure regulating spring (4) on spring lower bolster (15), the one end and the spring lower bolster (15) fixed connection of pressure regulating spring (4), the other end and fixed spring upper bolster (19) fixed connection who sets up on valve gap (8).

4. A long life unloader valve as defined in claim 1 wherein: the valve core head (10) is provided with an internal thread, the lower surface of the valve core (1) is provided with an external thread, and the valve core head and the external thread are fixedly connected together through threads.

5. A long life unloader valve as defined in claim 1 wherein: an unloading pressure water inlet hole (16) is obliquely formed in the surface of the left side of the unloading valve carrier (5), high-pressure water channels (17) are formed in the surfaces of the left side and the right side of the unloading valve carrier (5), the high-pressure water channels (17) are located below the unloading pressure water inlet hole (16), and a low-pressure water channel (18) is formed in the lower surface of the unloading valve carrier (5).

6. A long life unloader valve as defined in claim 1 wherein: the lower side surface of the valve cover (8) is fixedly connected with a limiting pad (14), and the limiting pad (14) is fixedly arranged on the valve cover (8) through a screw.