CN220706534U

CN220706534U - Overflow valve

Info

Publication number: CN220706534U
Application number: CN202322480382.XU
Authority: CN
Inventors: 吕兵兵; 杨臣; 席文强
Original assignee: Ningbo Youye Hydraulic Co ltd
Current assignee: Ningbo Youye Hydraulic Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-04-02
Anticipated expiration: 2033-09-12

Abstract

The utility model provides an overflow valve, which comprises a blocking ring, an adjusting screw, a squeezing sheet and a sealing ring, wherein the upper side of the annular side surface of the tightening sleeve is provided with the blocking ring, the left side, the right side, the front side and the rear side of the inner part of the blocking ring are symmetrically provided with the adjusting screw, the lower side of the blocking ring is provided with the squeezing sheet, the lower end surface of the squeezing sheet is attached with the sealing ring, the adjusting screw can apply downward pressure to the squeezing sheet by rotating the adjusting screw in an equidistant and clockwise manner, the squeezing sheet can apply downward pressure to the sealing ring, at the moment, the lower end surface of the sealing ring can be tightly attached with the upper end surface of an air inlet hose, so that the sealing property of the sealing ring is further improved, meanwhile, the sealing ring is better between the annular side surface of the sealing ring and the blocking ring by the outer sealing ring, and the sealing ring is better between the annular side surface of the sealing ring and the blocking ring by the inner sealing ring.

Description

Overflow valve

Technical Field

The utility model relates to the technical field of overflow valves, in particular to an overflow valve.

Background

The relief valve is also a safety valve, and the safety valve is a special valve which is in a normally closed state under the action of external force, and when the pressure in the equipment or the equipment rises to exceed a specified value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipeline or the equipment from exceeding the specified value.

The utility model discloses a screw thread cartridge formula overflow valve that "CN212297094U" provided, through being equipped with first sealing member and second sealing member, and then when using, through first adjusting nut and second adjusting nut, adjust the screw thread section of thick bamboo and the outside length of threaded rod be located, and then be convenient for adjust the position of first case and second case, and through first adjusting nut and second adjusting nut, be convenient for receive the pressure of first spring and second spring to first case and second case and adjust, and then adjust the accuracy that liquid passed through, facilitate the use.

However, the following drawbacks exist in the above technical solutions and the prior art:

the liquid inlet in the overflow valve body is sealed only by virtue of the sealing gasket, so that the pipeline sleeved at the liquid inlet of the valve body is easy to loosen, and leakage occurs between the liquid inlet and the pipeline once loosening occurs, thereby influencing the use accuracy of the overflow valve and being required to be improved in the aspect of practicality.

Disclosure of Invention

The present utility model is directed to an overflow valve, which solves the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides an overflow valve, includes regulation pole, lock nut, overflow valve body, exhaust hole and air inlet hose, the regulation pole is installed to overflow valve body upper end, adjust pole annular side-mounting lock nut, the exhaust hole has been seted up to overflow valve body annular side downside, overflow valve body annular side downside cover is equipped with air inlet hose, overflow valve body annular side downside is provided with and is used for carrying out the fixed subassembly of tightening up of locking to air inlet hose, it is provided with extrusion seal assembly to tighten up the subassembly up end, and extrusion seal assembly is used for improving the leakproofness of tightening up the subassembly.

Preferably, the tightening assembly comprises a tightening sleeve, a first plugging ring and an expansion sleeve, wherein the expansion sleeve is fixedly connected to the lower side of the annular side surface of the overflow valve body, the tightening sleeve is sleeved on the upper side of the annular side surface of the air inlet hose, and the first plugging ring is sleeved on the lower side of the annular side surface of the overflow valve body.

Preferably, the extrusion seal assembly comprises a blocking ring, adjusting screws, extrusion sheets and a sealing ring, wherein the blocking ring is arranged on the upper side of the inner ring side surface of the tightening sleeve, the adjusting screws are symmetrically arranged on the left side, the right side, the front side and the rear side of the inner part of the blocking ring, the extrusion sheets are arranged on the lower side of the blocking ring, and the sealing ring is attached to the lower end surface of the extrusion sheets.

Preferably, a second plugging ring is sleeved below the first plugging ring, the first plugging ring and the second plugging ring are made of fluororubber, and the expansion sleeve is cone-shaped.

Preferably, the annular side of tightening sleeve is provided with the internal thread, stop annular side and be provided with the external screw thread, and external screw thread and internal screw thread mesh, vertical through-hole has all been seted up for this in the inside left and right sides of stop ring and front and back both sides, spacing chamber has been seted up to stop ring downside, and spacing chamber and extrusion piece assorted, the adjusting screw upper end is provided with the turn round, the adjusting screw bottom is provided with the follower, it is provided with anti-skidding texture to tighten up annular side of sleeve.

Preferably, the annular side in the vertical through hole is provided with a thread tooth, the thread tooth is meshed with the adjusting screw, the limiting cavity is in an annular shape, the rotary head is hexagonal, the follow-up block is circular, the extrusion sheet is in an annular shape, and the blocking cover is arranged on the left side, the right side, the front side and the rear side of the upper end face of the extrusion sheet.

Preferably, the annular side surface of the sealing ring is attached with an outer sealing ring, and the annular side surface of the sealing ring is attached with an inner sealing ring.

Preferably, the outer sealing ring and the inner sealing ring are both made of brominated butyl rubber, and the sealing ring is made of butadiene rubber.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model discloses a tightening up the cover meshing and fixing and blocking ring annular side, alright make the tightening up that moves cover can tighten up the air inlet hose of suit at expansion cover annular side to this is fixed air inlet hose upper end, avoids air inlet hose to appear not hard up slippage condition easily in the use of connecting between overflow valve body, and first shutoff ring and second shutoff ring also make the leakproofness better between overflow valve body lower extreme and the air inlet hose, and sealing ring makes the leakproofness better between blocking ring and the air inlet hose, thereby avoids the overflow valve body to appear revealing the condition in the use, with this messenger overflow valve body accuracy of use is better;

2. the utility model discloses a rotate clockwise adjusting screw, alright make adjusting screw applys down force to the sealing ring through the extrusion piece to terminal surface and air inlet hose up end closely laminate under the sealing ring, with this leakproofness that further improves the sealing ring.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a block ring and tightening sleeve configuration of the present utility model;

FIG. 3 is a block diagram of an extruded sheet of the present utility model;

FIG. 4 is an elevational cross-sectional view of the compression seal assembly and the take-up assembly of the present utility model;

fig. 5 is an enlarged view of a in fig. 4.

In the figure: 1. an adjusting rod; 2. a lock nut; 3. an overflow valve body; 4. an exhaust hole; 5. extruding the seal assembly; 51. a blocking ring; 511. an external thread; 512. a vertical through hole; 513. a spacing cavity; 52. adjusting a screw; 521. turning the head; 53. extruding the sheet; 531. a blocking cover; 54. a seal ring; 55. an outer seal ring; 56. an inner seal ring; 57. a follower block; 6. a tightening assembly; 61. tightening the sleeve; 611. an internal thread; 62. a first plugging ring; 63. a second occlusion ring; 64. an expansion sleeve; 7. an air intake hose.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

embodiment one:

the utility model provides an overflow valve, including adjusting pole 1, lock nut 2, overflow valve body 3, exhaust hole 4 and air inlet hose 7, adjust pole 1 is installed to overflow valve body 3 upper end, adjust pole 1 conveniently and adjust the pressure size that overflow valve body 3 passed through, adjust pole 1 annular side-mounting has lock nut 2, lock nut 2 can lock fixedly to adjusting pole 1, exhaust hole 4 has been seted up to overflow valve body 3 annular side downside, exhaust hole 4 conveniently will pass through overflow valve body 3's gas discharge, overflow valve body 3 annular side downside cover is equipped with air inlet hose 7, air inlet hose 7 conveniently leads outside air to overflow valve body 3 inside, overflow valve body 3 annular side downside is provided with and is used for carrying out locking fixed tightening up subassembly 6 to air inlet hose 7, tightening up end of subassembly 6 is provided with extrusion seal assembly 5, and extrusion seal assembly 5 is used for improving the leakproofness of tightening up subassembly 6.

The tightening assembly 6 comprises a tightening sleeve 61, a first plugging ring 62 and an expansion sleeve 64, wherein the expansion sleeve 64 is fixedly connected to the lower side of the annular side surface of the overflow valve body 3, the expansion sleeve 64 is conical, the expansion sleeve 64 is connected with the overflow valve body 3 in a welding mode, the expansion sleeve 64 in the conical shape is convenient for expanding an air inlet hose 7 sleeved at the lower end of the overflow valve body 3, the upper side of the annular side surface of the air inlet hose 7 is sleeved with the tightening sleeve 61, the tightening sleeve 61 can tighten and fix the air inlet hose 7 sleeved at the annular side surface of the expansion sleeve 64, the annular side surface of the tightening sleeve 61 is provided with anti-slip textures, the anti-slip textures enable the annular side surface of the tightening sleeve 61 to have better anti-slip property, the situation that the tightening sleeve 61 slips easily in the disassembling and assembling process is avoided, the inner annular side surface of the tightening sleeve 61 is provided with the inner thread 611, the inner thread 611 facilitates the tightening sleeve 61 to be meshed and fixed on the annular side surface of the blocking ring 51, the lower side of the annular side surface of the overflow valve body 3 is sleeved with the first blocking ring 62, the lower side of the first blocking ring 62 is sleeved with the second blocking ring 63, the first blocking ring 62 and the second blocking ring 63 are made of fluororubber, and the sealing performance between the lower end of the overflow valve body 3 and the air inlet hose 7 is better.

Embodiment two:

on the basis of the first embodiment, in this embodiment, by rotating the adjusting screw 52, the adjusting screw 52 can apply a pressing force to the seal ring 54 through the pressing piece 53, so that the tightness of the seal ring 54 is further improved.

The extrusion seal assembly 5 comprises a blocking ring 51, an adjusting screw 52, an extrusion piece 53 and a sealing ring 54, wherein the blocking ring 51 is arranged on the upper side of the inner annular side surface of the tightening sleeve 61, the blocking ring 51 is connected with the overflow valve body 3 in a welding mode, the blocking ring 51 is convenient for fixing the tightening sleeve 61 and also convenient for blocking and limiting the air inlet hose 7, the annular side surface of the blocking ring 51 is provided with an external thread 511, the external thread 511 is meshed with an internal thread 611, the external thread 511 is convenient for the tightening sleeve 61 to be fixedly arranged on the annular side surface of the blocking ring 51, vertical through holes 512 are formed on the left side, the right side, the front side and the back side of the inner part of the blocking ring 51, the annular side surface of the vertical through holes 512 is provided with thread teeth, the thread teeth are meshed with the adjusting screw 52, the vertical through holes 512 provided with the thread teeth facilitate the adjusting screw 52 to move up and down inside the blocking ring 51, the limiting cavity 513 is arranged at the lower side of the inner part of the blocking ring 51, the limiting cavity 513 is matched with the extrusion piece 53, the limiting cavity 513 is in a ring shape, the extrusion piece 53 can conveniently move up and down in the blocking ring 51, the left side, the right side, the front side, the rear side and the front side of the inner part of the blocking ring 51 are symmetrically provided with the adjusting screw rods 52, the four adjusting screw rods 52 are provided with four adjusting screw rods 52 with the same specification, the four adjusting screw rods 52 can conveniently finely adjust the extrusion piece 53 up and down, the upper end of the adjusting screw rods 52 is provided with rotary heads 521, the rotary heads 521 are provided with four rotary heads 521 with the same specification, the rotary heads 521 are connected with the adjusting screw rods 52 in a welding mode, the rotary heads 521 are hexagonal, the rotary heads 521 in a hexagonal shape are convenient for workers to rotate the adjusting screw rods 52 by means of external wrenches, the bottom of the adjusting screw rods 52 is provided with follow-up blocks 57, the follow-up blocks 57 are connected with the adjusting screw rods 52 in a welding mode, the follow-up block 57 is provided with four, the follow-up block 57 is circular, the follow-up block 57 is convenient for adjust screw 52 to drive the extrusion piece 53 and reciprocate, the inside downside of blocking ring 51 is provided with extrusion piece 53, extrusion piece 53 is annular, the extrusion piece 53 of annular is convenient to exert down force to sealing ring 54, so that sealing ring 54 lower extreme face and intake hose 7 upper end closely laminate, the left and right sides and the front and back both sides of extrusion piece 53 up end are all equipped with blocking cover 531 for this, blocking cover 531 installs four, blocking cover 531 can block spacing to follow-up block 57, avoid follow-up block 57 to appear the slippage condition in the use, extrusion piece 53 lower extreme face laminating has sealing ring 54, sealing ring 54 material is butadiene rubber not only wearability and elasticity are excellent, and also make the leakproofness better between blocking ring 51 and the intake hose 7, sealing ring 54 annular side laminating has outside sealing ring 55, the outside sealing ring 55 material is the brominated butyl rubber not only has low permeability and ageing resistance, and make sealing ring 54 between annular side and the blocking ring 51 have the inside sealing ring 56 better and brominated butyl rubber sealing ring material to have the inside sealing ring 56 and the inside sealing ring is brominated sealing ring material to have the inside sealing ring 56 and the brominated sealing ring is better.

Working principle: after the air inlet hose 7 is sleeved on the annular side surface of the expansion sleeve 64 from bottom to top, a worker can rotationally engage and fix the tightening sleeve 61 on the annular side surface of the blocking ring 51, in the process, the tightening sleeve 61 which moves upwards tightens the air inlet hose 7 sleeved on the annular side surface of the expansion sleeve 64, so that the upper end of the air inlet hose 7 is fixed, the condition that the air inlet hose 7 is loosened and slipped easily in the process of connecting and using the overflow valve bodies 3 is avoided, the sealing performance between the lower end of the overflow valve bodies 3 and the air inlet hose 7 is better due to the first blocking ring 62 and the second blocking ring 63, and the sealing performance between the blocking ring 51 and the air inlet hose 7 is better due to the sealing ring 54, so that the condition that leakage of air in the air inlet hose 7 is avoided easily.

When the sealing capability of the sealing ring 54 needs to be further improved, a worker only needs to rotate the four adjusting screws 52 in equidistant and clockwise directions respectively, so that the four adjusting screws 52 can apply a downward pressure to the extruding piece 53, and then the extruding piece 53 can apply a downward pressure to the sealing ring 54, at the moment, the lower end face of the sealing ring 54 can be tightly attached to the upper end face of the air inlet hose 7, so that the sealing performance of the sealing ring 54 is further improved, meanwhile, the sealing performance between the annular side face of the sealing ring 54 and the blocking ring 51 is better due to the outer sealing ring 55, and the sealing performance between the annular side face of the sealing ring 54 and the blocking ring 51 is better due to the inner sealing ring 56.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an overflow valve, includes regulation pole (1), lock nut (2), overflow valve body (3), exhaust hole (4) and air inlet hose (7), its characterized in that: the utility model discloses a sealing device for the air inlet of the overflow valve, including overflow valve body (3), regulation pole (1) are installed to overflow valve body (3) upper end, adjust pole (1) annular side-mounting has lock nut (2), exhaust hole (4) have been seted up to overflow valve body (3) annular side downside, overflow valve body (3) annular side downside cover is equipped with air inlet hose (7), overflow valve body (3) annular side downside is provided with and is used for carrying out locking fixed tightening up subassembly (6) to air inlet hose (7), tightening up end of tightening up subassembly (6) is provided with extrusion seal subassembly (5), and extrusion seal subassembly (5) are used for improving the leakproofness of tightening up subassembly (6).

2. An overflow valve as claimed in claim 1, wherein: the tightening assembly (6) comprises a tightening sleeve (61), a first blocking ring (62) and an expansion sleeve (64), the expansion sleeve (64) is fixedly connected to the lower side of the annular side face of the overflow valve body (3), the tightening sleeve (61) is sleeved on the upper side of the annular side face of the air inlet hose (7), and the first blocking ring (62) is sleeved on the lower side of the annular side face of the overflow valve body (3).

3. An overflow valve as claimed in claim 2, wherein: the extrusion sealing assembly (5) comprises a blocking ring (51), an adjusting screw (52), extrusion sheets (53) and a sealing ring (54), the blocking ring (51) is installed on the upper side of the annular side face in the tightening sleeve (61), the adjusting screw (52) is symmetrically installed on the left side, the right side, the front side and the rear side of the inner portion of the blocking ring (51), the extrusion sheets (53) are arranged on the lower side of the inner portion of the blocking ring (51), and the sealing ring (54) is attached to the lower end face of the extrusion sheets (53).

4. An overflow valve as claimed in claim 2, wherein: the second plugging ring (63) is sleeved below the first plugging ring (62), the first plugging ring (62) and the second plugging ring (63) are made of fluororubber, and the expansion sleeve (64) is conical.

5. A relief valve according to claim 3 wherein: the tightening sleeve is characterized in that an inner annular side face of the tightening sleeve (61) is provided with an inner thread (611), an outer thread (511) is arranged on the annular side face of the blocking ring (51), the outer thread (511) is meshed with the inner thread (611), vertical through holes (512) are formed in the left side, the right side, the front side and the rear side of the inner portion of the blocking ring (51), a limiting cavity (513) is formed in the lower side of the inner portion of the blocking ring (51), a rotating head (521) is arranged at the upper end of the adjusting screw (52), and a follow-up block (57) is arranged at the bottom of the adjusting screw (52).

6. An overflow valve as claimed in claim 5, wherein: the inner annular side of the vertical through hole (512) is provided with a thread tooth, the thread tooth is meshed with the adjusting screw (52), the limiting cavity (513) is annular, the rotary head (521) is hexagonal, the follow-up block (57) is circular, the extrusion piece (53) is annular, and the blocking cover (531) is arranged on the left side, the right side, the front side and the rear side of the upper end face of the extrusion piece (53).

7. A relief valve according to claim 3 wherein: an outer sealing ring (55) is attached to the annular side face of the sealing ring (54), and an inner sealing ring (56) is attached to the annular side face of the sealing ring (54).

8. An overflow valve as claimed in claim 7, wherein: the outer sealing ring (55) and the inner sealing ring (56) are made of brominated butyl rubber, and the sealing ring (54) is made of butadiene rubber.