CN218582349U

CN218582349U - One-way constant-current pressure reducing device

Info

Publication number: CN218582349U
Application number: CN202223055025.0U
Authority: CN
Inventors: 陈佳纳
Original assignee: Haiying Enterprise Group Co Ltd
Current assignee: Haiying Enterprise Group Co Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-03-07
Anticipated expiration: 2032-11-17

Abstract

The utility model relates to the technical field of valves, in particular to a one-way constant-current pressure reducing device; the valve core is sleeved on the outer wall of the upper end of the valve core, a sealing groove is formed in the upper end of the valve core, a sealing ring is embedded in the sealing groove, the lower end of the inlet connector is screwed with the upper end of the outlet connector through threads, and the bottom of the lower end of the inlet connector is abutted with the top of the upper end of the blocking sleeve; the installation space and the connecting pipeline are reduced, the leakage between the pipeline connections is avoided, and the constant-current device is simplified and is suitable for mass production.

Description

One-way constant-current pressure reducing device

Technical Field

The utility model relates to the technical field of valves, in particular to one-way constant current pressure relief device.

Background

The one-way reducing valve commonly used in the current market has the defects of complex structure and expanded volume, and does not have the action of constant current and constant pressure, thereby often causing the defects of installation space, large pressure fluctuation and poor safety performance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides an one-way constant current pressure relief device has reduced installation space and connecting tube, has avoided the leakage between the pipe connection to it is applicable in mass production to simplify constant current device.

The utility model discloses a following technical scheme realizes:

the utility model provides a one-way constant current pressure relief device, includes inlet joint and outlet joint, the built-in bush that is equipped with of inlet joint, the built-in restricted flow piece that is equipped with of bush, the built-in case and the stifled cover of being equipped with respectively of outlet joint, the outside cover of lower extreme of case is equipped with the spring, the upper end of spring with the outer wall looks butt of case, the lower extreme with outlet joint's inner chamber bottom looks butt, stifled cover is located on the upper end outer wall of case, the upper end of case still includes the seal groove of seting up, the embedded sealing washer that is equipped with of seal groove, inlet joint's lower extreme with outlet joint's upper end is screwed through the screw, makes inlet joint's lower extreme bottom with the upper end top looks butt of stifled cover.

Preferably, the bushing comprises an outer sleeve and a hollow tube; the axis of the outer sleeve is integrally connected with the hollow pipe.

Preferably, the outer sleeve is in a conical shell structure with an opening at the upper end, and the caliber of the conical shell is gradually reduced from top to bottom.

Preferably, the bottom of the inner cavity of the outer sleeve is circumferentially provided with a through hole, and the flow-limiting sheet is arranged in an annular ring-shaped structure.

Preferably, the lower end of the outer wall of the valve core further comprises an abutting part which is arranged to abut against the upper end of the spring; the middle part of the outer wall of the valve core also comprises an annular bulge part which is integrally formed.

Preferably, the sleeve outer wall of the valve core further comprises a valve hole formed in the circumferential direction.

Preferably, the blocking sleeve further comprises a first abutting groove and a second abutting groove which are sequentially formed from bottom to top at the lower end of the inner wall, so that the first abutting groove is in abutting fit with the abutting portion, and the second abutting groove is in abutting fit with the bottom wall of the groove cavity of the sealing groove.

Preferably, the caliber of the bottom wall of the groove cavity of the sealing groove is larger than the caliber of the top wall of the groove cavity.

The utility model discloses following beneficial effect has:

an object of the utility model is to provide a check valve closes as an organic whole with constant current pressure relief device, has reduced installation space and connecting tube, has avoided the leakage between the pipe connection to it is applicable in mass production to simplify the constant current device. The technology has the advantages of low production cost, reliable quality, simple installation and good safety performance, and improves the use reliability of products; in particular, the one-way pressure-reducing constant-pressure valve used for sanitary ware and the one-way constant-flow constant-pressure function used on each equipment product can be applied to pipeline. The pipeline safety valve and the one-way valve pressure-reducing constant-flow device commonly adopted in the market are improved, the defects of complex structure and large volume are overcome, the one-way constant-flow pressure-reducing valve which is simple and compact in combination of the pipeline safety valve and the one-way valve is created, the one-way function is mainly used for sanitary ware and various equipment products, the backflow is prevented, the water pressure is controlled to play a constant-flow function and the like, and the medium air, oil, water and the like can be used.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a sectional view of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is an enlarged view of the plug sleeve and the valve core of the present invention.

In the figure: 1-inlet joint, 2-outlet joint, 3-bushing, 31-outer sleeve, 32-hollow tube, 33-through hole, 4-restrictor, 5-valve core, 51-abutting part, 52-annular bulge, 53-valve hole, 6-blocking sleeve, 61-abutting groove I, 62-abutting groove II, 7-spring, 8-sealing groove and 9-sealing ring.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a unidirectional constant-current pressure reducing device comprises an inlet connector 1 and an outlet connector 2, wherein a bushing 3 is assembled in the inlet connector 1, a flow-limiting sheet 4 is assembled in the bushing 3, a valve core 5 and a blocking sleeve 6 are respectively assembled in the outlet connector 2, a spring 7 is sleeved outside the lower end of the valve core 5, the upper end of the spring 7 abuts against the outer wall of the valve core 5, the lower end of the spring abuts against the bottom of an inner cavity of the outlet connector 2, the blocking sleeve 6 is sleeved on the outer wall of the upper end of the valve core 5, the upper end of the valve core 5 further comprises a sealing groove 8, a sealing ring 9 is embedded in the sealing groove 8, the lower end of the inlet connector 1 is screwed with the upper end of the outlet connector 2 through threads, and the bottom of the lower end of the inlet connector 1 abuts against the top of the upper end of the blocking sleeve 6.

The bushing 3 comprises an outer sleeve 31 and a hollow tube 32; a hollow tube 32 is integrally connected to the outer sleeve 31 at the axis thereof. The outer sleeve 31 is a conical shell structure with an open upper end, and the caliber of the conical shell is gradually reduced from top to bottom. The bottom of the inner cavity of the outer sleeve 31 is circumferentially provided with a through hole 33, and the flow restriction piece 4 is arranged in an annular ring-shaped structure.

The lower end of the outer wall of the valve core 5 also comprises an open abutting part 51 which is abutted with the upper end of the spring 7; the middle part of the outer wall of the valve core 5 also comprises an integrally formed annular convex part 52. The outer wall of the sleeve of the valve core 5 also comprises a valve hole 53 opened in the circumferential direction.

The blocking sleeve 6 further comprises a first abutting groove 61 and a second abutting groove 62 which are sequentially formed in the lower end of the inner wall from bottom to top, so that the first abutting groove 61 is in abutting fit with the abutting portion 51, and the second abutting groove 62 is in abutting fit with the bottom wall of the cavity of the sealing groove 8. The caliber of the bottom wall of the groove cavity of the sealing groove 8 is larger than that of the top wall of the groove cavity.

The working principle is as follows: when water (gas, oil) pressure enters an inner cavity of the inlet end through the inlet direction, under the action of the flow restriction piece 4 and the lining 3, when the water pressure is higher, the gap between the flow restriction piece 4 and the lining 3 is smaller, the flow is balanced, the pressure output by each pressure section is consistent through the flow restriction of the lining 3 and the flow restriction piece 4, constant flow water (gas, oil) pressure flows out through the lining 3 and the flow restriction piece 4, the acting force pushes the valve core 5 to move downwards at the front section of the valve core 5, and the acting force flows out of an outlet end through a small hole of the valve core 5. If water (gas, oil) pressure acts towards the inlet end through the outlet end direction, the pressure can lead the valve core 5 to act on the inner cavity of the blocking sleeve 6 in a sealing way. The higher the pressure, the better the seal (functioning as a one-way flow).

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a one-way constant current pressure relief device, includes inlet joint (1) and outlet joint (2), its characterized in that, be equipped with bush (3) in inlet joint (1), be equipped with current-limiting piece (4) in bush (3), be equipped with respectively in outlet joint (2) and be equipped with case (5) and stifled cover (6), the outside cover of lower extreme of case (5) is equipped with spring (7), the upper end of spring (7) with the outer wall looks butt of case (5), the lower extreme with the inner chamber bottom looks butt of outlet joint (2), stifled cover (6) cover is located on the upper end outer wall of case (5), the upper end of case (5) still includes seal groove (8) of seting up, seal groove (8) embedded sealing washer (9) that is equipped with, the lower extreme that inlet joint (1) was screwed with the upper end of outlet joint (2) is through the screw thread, makes the lower extreme bottom of inlet joint (1) with the upper end top looks butt of stifled cover (6).

2. A unidirectional constant flow pressure relief device according to claim 1, wherein said bushing (3) comprises an outer sleeve (31) and a hollow tube (32); the axis of the outer sleeve (31) is integrally connected with the hollow pipe (32).

3. A unidirectional constant-current pressure relief device according to claim 2, wherein the outer sleeve (31) is provided with a conical shell structure with an open upper end, and the caliber of the conical shell gradually decreases from top to bottom.

4. A unidirectional constant-current pressure relief device according to claim 2, wherein the bottom of the inner cavity of the outer sleeve (31) is circumferentially provided with through holes (33), and the restrictor plates (4) are arranged in an annular ring-shaped structure.

5. A unidirectional constant-current pressure relief device according to claim 1, wherein the lower end of the outer wall of the valve core (5) further comprises an abutting part (51) which is arranged to abut against the upper end of the spring (7); the middle part of the outer wall of the valve core (5) also comprises an annular convex part (52) which is integrally formed.

6. A unidirectional constant-flow pressure reducing device as claimed in claim 1, wherein the outer wall of the sleeve of the valve core (5) further comprises a valve hole (53) opened in the circumferential direction.

7. The unidirectional constant-current pressure reducing device as claimed in claim 5, wherein the blocking sleeve (6) further comprises a first abutting groove (61) and a second abutting groove (62) which are sequentially formed from bottom to top at the lower end of the inner wall, so that the first abutting groove (61) is in abutting fit with the abutting portion (51), and the second abutting groove (62) is in abutting fit with the bottom wall of the cavity of the sealing groove (8).

8. A unidirectional constant-current pressure reduction device according to claim 7, wherein the caliber of the bottom wall of the cavity of the sealing groove (8) is larger than that of the top wall of the cavity.