CN212745215U - Differential pressure bypass assembly - Google Patents
Differential pressure bypass assembly Download PDFInfo
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- CN212745215U CN212745215U CN202021268588.6U CN202021268588U CN212745215U CN 212745215 U CN212745215 U CN 212745215U CN 202021268588 U CN202021268588 U CN 202021268588U CN 212745215 U CN212745215 U CN 212745215U
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Abstract
The utility model discloses a pressure difference bypass assembly, which comprises a valve body, wherein a medium cavity and a valve core cavity are arranged inside the valve body, two ends of the medium cavity are opened, the intermediate positions of the medium cavity and the valve core cavity are crossed and communicated, a first communicating pipe is communicated and arranged between one end of the medium cavity and one end of the valve core cavity, and a second communicating pipe is communicated and arranged between the other end of the medium cavity and the other end of the valve core cavity; the valve core is installed in the valve core cavity in a sliding and sealing mode, a damping ring is fixedly arranged on the contact surface of the valve core and the valve core cavity, a communication hole communicated with the medium cavity is formed in the surface of the valve core, and when the valve core slides in the valve core cavity, the overlapping area of the communication hole and the medium cavity is changed; according to the differential pressure bypass assembly, the damping ring is arranged between the valve core and the valve core cavity, so that the jitter of the valve core is inhibited.
Description
Technical Field
The utility model relates to a bypass subassembly technical field specifically is a pressure differential bypass subassembly.
Background
The pressure difference bypass balancing valve is a valve used between the water supply/return of the air conditioning system to balance the pressure difference. The valve can improve the utilization rate of the system, keep the pressure difference to be accurate and straight, and reduce the noise of the system to the maximum extent and damage to equipment caused by overlarge pressure difference;
most of the existing mechanical bypass valves are directly driven by the pressure in a water inlet pipe and a water return pipe, when a medium flows, the sealing surface is abraded greatly, after the medium flows, the pressure on two sides can change rapidly to cause the valve core to shake and generate abnormal sound, and the valve core shakes for a long time to cause the sealing performance of the sealing position to decline rapidly, so that the problem of leakage still exists when the pressure difference on two sides is stable.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a pressure differential bypass subassembly, through set up the damping ring between case and case cavity, restrain the shake of case, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a differential pressure bypass assembly comprises a valve body, wherein a medium cavity and a valve core cavity are arranged in the valve body, two ends of the medium cavity are opened, the medium cavity and the valve core cavity are crossed and communicated at the middle positions, a first communicating pipe is communicated and arranged between one end of the medium cavity and one end of the valve core cavity, and a second communicating pipe is communicated and arranged between the other end of the medium cavity and the other end of the valve core cavity;
the valve core is installed in the valve core cavity in a sliding and sealing mode, a damping ring is fixedly arranged on the contact surface of the valve core and the valve core cavity, a communication hole communicated with the medium cavity is formed in the surface of the valve core, and when the valve core slides in the valve core cavity, the overlapping area of the communication hole and the medium cavity is changed;
an adjusting assembly is arranged between one end of the valve core and the inner wall of the valve core cavity, the adjusting assembly comprises an adjusting bolt in threaded connection with the valve body, the adjusting bolt is coaxial with the valve core, and a spring is arranged between the adjusting bolt and the valve core along the relative movement direction.
As a preferred technical solution of the present invention, an opening is disposed at one end of the valve core cavity communicated with the first communication pipe, a sealing end cover is disposed at the opening in a sealing manner, a limiting post is vertically disposed inside the sealing end cover, and when the valve core contacts with the limiting post, the outlet of the first communication pipe is not blocked;
through setting up the opening, make things convenient for the assembly of case, and set up spacing post, block first connecting pipe when avoiding the case to move to extreme position.
As a preferred technical scheme of the utility model, the inner wall of the valve core cavity is axially provided with a chute, the side wall of the valve core is provided with a slide bar, and the slide bar and the chute are slidably mounted;
through the sliding installation of the sliding strip and the sliding groove, the problem that the valve core is twisted during movement is avoided.
As a preferred technical solution of the present invention, a slider is disposed between the spring and the adjusting bolt, the slider is slidably mounted inside the valve core cavity, a sealing ring is disposed between the slider and the contact surface of the valve core cavity, and when the adjusting bolt is screwed into the maximum stroke, the slider and the valve core are respectively disposed at two sides of the outlet of the second communicating pipe;
the sliding block installed in a sliding sealing mode is added, so that the sealing performance of the position of the upper end adjusting bolt is improved.
Compared with the prior art, the beneficial effects of the utility model are that: the pressure difference bypass assembly effectively inhibits the shaking of the valve core by arranging the damping ring on the circumferential surface of the valve core and under the friction action between the damping ring and the inner wall of the valve core cavity, when the pressure at two ends of the valve core fluctuates, the valve core is inhibited from moving due to the damping action of the damping ring, when the pressure difference at two sides is increased, the acting force of the pressure difference exceeds the damping force of the damping ring, the valve core moves, the overlapping area of the communication hole and the medium cavity is changed, the communication rate of the medium cavity is changed, the bypass effect is achieved, and the pressure at two ends is balanced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the present invention.
In the figure: 1 valve body, 101 medium cavity, 102 valve core cavity, 103 sliding groove, 104 sealing end cover, 105 first communicating pipe, 106 second communicating pipe, 2 valve core, 201 damping ring, 202 communicating hole, 3 adjusting component, 301 spring, 302 sliding block, 303 sealing ring and 304 adjusting bolt.
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.
Referring to fig. 1-2, the present invention provides a technical solution: a differential pressure bypass assembly comprises a valve body 1, wherein a medium cavity 101 and a valve core cavity 102 are arranged in the valve body 1, two ends of the medium cavity 101 are open, the middle positions of the medium cavity 101 and the valve core cavity 102 are crossed and communicated, a first communicating pipe 105 is communicated between one end of the medium cavity 101 and one end of the valve core cavity 102, and a second communicating pipe 106 is communicated between the other end of the medium cavity 101 and the other end of the valve core cavity 102;
the valve core 2 is installed in the valve core cavity 102 in a sliding and sealing mode, a damping ring 201 is fixedly arranged on the contact surface of the valve core 2 and the valve core cavity 102, a communication hole 202 communicated with the medium cavity 101 is formed in the surface of the valve core 2, and when the valve core 2 slides in the valve core cavity 102, the overlapping area of the communication hole 202 and the medium cavity 101 is changed;
an adjusting component 3 is arranged between one end of the valve core 2 and the inner wall of the valve core cavity 102, the adjusting component 3 comprises an adjusting bolt 304 in threaded connection with the valve body 1, the adjusting bolt 304 is coaxial with the valve core 2, and a spring 301 is arranged between the adjusting bolt 304 and the valve core 2 along the relative movement direction.
An opening is formed in one end, communicated with the first communication pipe 105, of the valve core cavity 102, a sealing end cover 104 is arranged at the opening in a sealing mode, a limiting column is vertically arranged inside the sealing end cover 104, and when the valve core 2 is in contact with the limiting column, the outlet of the first communication pipe 105 cannot be blocked;
through setting up the opening, make things convenient for the assembly of case 2, and set up spacing post, block first connecting pipe 105 when avoiding case 2 to move extreme position.
The inner wall of the valve core cavity 102 is axially provided with a sliding groove 103, the side wall of the valve core 2 is provided with a sliding strip, and the sliding strip and the sliding groove 103 are installed in a sliding manner;
through the sliding installation of the sliding strip and the sliding groove 103, the problem that the valve core 2 is twisted when moving is avoided.
A sliding block 302 is arranged between the spring 301 and the adjusting bolt 304, the sliding block 302 is slidably mounted inside the valve core cavity 102, a sealing ring 303 is arranged between the contact surface of the sliding block 302 and the valve core cavity 102, and when the adjusting bolt 304 is screwed into the maximum stroke, the sliding block 302 and the valve core 2 are respectively arranged at two sides of an outlet of the second communication pipe 106;
by adding a sliding block 302 which is installed in a sliding and sealing way, the sealing performance of the position of the upper end adjusting bolt 304 is improved.
When the two ends of the medium cavity 101 are not connected to the pipes, the spring 301 is in a non-power storage state, and the overlapping area of the communication hole 202 and the medium cavity 101 is zero, that is, the medium cavity 101 is blocked.
When in use: the medium cavity 101 communicated with the valve core cavity 102 where the adjusting assembly 3 is located is communicated with a low-pressure end, the other end of the medium cavity 101 is communicated with a high-pressure end, when the pressure difference between the high-pressure end and the low-pressure end is increased, the valve core 2 is pushed to move upwards, the communication hole 202 is communicated with the medium cavity 101, the spring 301 is compressed at the moment, deformation and energy storage are generated, when pressure fluctuation occurs, the valve core 2 is restrained from shaking due to the damping force of the damping ring 201, and after the pressure difference is eliminated, the valve core 2 is reset under the action of the spring 301, so that the medium cavity 101 is cut off.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A differential pressure bypass assembly comprising a valve body (1), characterized in that: a medium cavity (101) and a valve core cavity (102) are arranged in the valve body (1), two ends of the medium cavity (101) are opened, the middle positions of the medium cavity (101) and the valve core cavity (102) are crossed and communicated, a first communicating pipe (105) is communicated between one end of the medium cavity (101) and one end of the valve core cavity (102), and a second communicating pipe (106) is communicated between the other end of the medium cavity (101) and the other end of the valve core cavity (102);
the valve core (2) is installed in the valve core cavity (102) in a sliding and sealing mode, a damping ring (201) is fixedly arranged on the contact surface of the valve core (2) and the valve core cavity (102), a communication hole (202) communicated with the medium cavity (101) is formed in the surface of the valve core (2), and when the valve core (2) slides in the valve core cavity (102), the overlapping area of the communication hole (202) and the medium cavity (101) is changed;
an adjusting assembly (3) is arranged between one end of the valve core (2) and the inner wall of the valve core cavity (102), the adjusting assembly (3) comprises an adjusting bolt (304) in threaded connection with the valve body (1), the adjusting bolt (304) is coaxial with the valve core (2), and a spring (301) is arranged between the adjusting bolt (304) and the valve core (2) along the relative movement direction.
2. The differential pressure bypass assembly of claim 1, wherein: an opening is formed in one end, communicated with the first communication pipe (105), of the valve core cavity (102), a sealing end cover (104) is arranged at the opening in a sealing mode, a limiting column is vertically arranged inside the sealing end cover (104), and when the valve core (2) is in contact with the limiting column, an outlet of the first communication pipe (105) cannot be blocked.
3. The differential pressure bypass assembly of claim 1, wherein: the inner wall of the valve core cavity (102) is axially provided with a sliding groove (103), the side wall of the valve core (2) is provided with a sliding strip, and the sliding strip and the sliding groove (103) are installed in a sliding mode.
4. The differential pressure bypass assembly of claim 1, wherein: a sliding block (302) is arranged between the spring (301) and the adjusting bolt (304), the sliding block (302) is installed inside the valve core cavity (102) in a sliding mode, a sealing ring (303) is arranged between the sliding block (302) and a contact surface of the valve core cavity (102), and when the adjusting bolt (304) is screwed into the maximum stroke, the sliding block (302) and the valve core (2) are respectively arranged on two sides of an outlet of the second communicating pipe (106).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021268588.6U CN212745215U (en) | 2020-07-02 | 2020-07-02 | Differential pressure bypass assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021268588.6U CN212745215U (en) | 2020-07-02 | 2020-07-02 | Differential pressure bypass assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212745215U true CN212745215U (en) | 2021-03-19 |
Family
ID=75020399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021268588.6U Active CN212745215U (en) | 2020-07-02 | 2020-07-02 | Differential pressure bypass assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212745215U (en) |
-
2020
- 2020-07-02 CN CN202021268588.6U patent/CN212745215U/en active Active
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