CN217055750U - Integral overflow valve - Google Patents

Abstract

The utility model discloses an integral overflow valve, which comprises an overflow valve body, an end cover, an overflow valve sleeve component and a valve core component, wherein the overflow valve body is internally provided with a containing cavity and a working liquid channel, and the containing cavity is communicated with the working liquid channel; the end cover is provided with an installation cavity penetrating through the end cover along the thickness direction of the end cover; the overflow valve sleeve assembly is arranged in the installation cavity and the accommodating cavity in a penetrating mode, a liquid inlet hole and a liquid outlet hole are formed in the overflow valve sleeve assembly, the overflow valve cavity extends along the axial direction of the overflow valve sleeve assembly, and the liquid inlet hole and the liquid outlet hole are communicated with the overflow valve cavity; and the valve core assembly is arranged in the overflow valve cavity. The utility model discloses integral overflow valve has the installation and dismantles convenient advantage.

Description

Integral overflow valve

Technical Field

The utility model relates to an overflow valve technical field, concretely relates to integral overflow valve.

Background

The overflow valve is a pressure control valve and mainly plays roles in overflow, pressure stabilization, system unloading and safety protection in hydraulic equipment. In the correlation technique, adjust the pole and directly wear in with the end cover, the direct butt one by one in piece both ends that resets is on adjusting pole and case subassembly, when using, needs assemble one by one each part of overflow valve, and then leads to the installation complicated and dismantle troublesome problem.

Disclosure of Invention

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. To this end, embodiments of the present invention provide an integrated relief valve having advantages of convenience in installation and disassembly.

The integral overflow valve comprises an overflow valve body, an end cover, an overflow valve sleeve assembly and a valve core assembly, wherein an accommodating cavity and a working liquid channel are formed in the overflow valve body, and the accommodating cavity is communicated with the working liquid channel; the end cover is provided with an installation cavity penetrating through the end cover along the thickness direction of the end cover; the overflow valve sleeve assembly penetrates through the installation cavity and the accommodating cavity, a liquid inlet hole and a liquid outlet hole are formed in the overflow valve sleeve assembly, the overflow valve cavity extends along the axial direction of the overflow valve sleeve assembly, and the liquid inlet hole and the liquid outlet hole are communicated with the overflow valve cavity; and the valve core assembly is arranged in the overflow valve cavity.

According to the utility model discloses integral overflow valve has the installation and dismantles convenient advantage.

In some embodiments, the valve core assembly includes an overflow valve core, a reset member, and an adjusting rod, which are sequentially disposed, the overflow valve core is disposed in a section of the overflow valve cavity disposed in the accommodating cavity, the overflow valve core is movable along the overflow valve cavity, the adjusting rod penetrates through the overflow valve cavity and the mounting cavity, and two ends of the reset member respectively abut against the overflow valve core and the adjusting rod in a one-to-one correspondence manner.

In some embodiments, the overflow valve core has a first end and a second end which are oppositely arranged along the axial direction, the first end is in sealing contact with or separated from the overflow valve seat along with the pressure change at the liquid inlet hole, and the second end is in contact with the reset piece.

In some embodiments, the one end of the spill valve element has an abutting section, the abutting section gradually decreases in cross-sectional area in a direction toward the liquid inlet hole, the spill valve element is movable in an axial direction of the spill valve sleeve assembly between a first position in which the end of the abutting section having a smaller cross-sectional area is penetrated in the liquid inlet hole and the abutting section is in sealing abutment against a hole wall of the liquid inlet hole, and a second position in which a gap is provided between the abutting section and the hole wall of the liquid inlet hole.

In some embodiments, the overflow valve core further includes a first section and a second section connected to each other, the second section is fixed to an end of the abutting section having a larger cross-sectional area, a first limiting surface is defined at a junction of the first section and the second section, and one end of the reset member abuts against the first limiting surface.

In some embodiments, the installation cavity comprises a first cavity body and a second cavity body which are communicated with each other, a second limiting surface is defined at the junction of the first cavity body and the second cavity body, the overflow valve sleeve assembly penetrates through the second cavity body, and the overflow valve sleeve assembly can abut against the second limiting surface.

In some embodiments, the adjusting rod includes a first sealing section, a second sealing section, and a buffer section, the first sealing section is disposed in the first cavity, the first sealing section is in sealing fit with the first cavity, the second sealing section is disposed in the overflow valve cavity, the second sealing section is in sealing fit with the overflow valve cavity, the buffer section detachably abuts against the overflow valve core, a third limiting surface is defined at a junction between the second sealing section and the buffer section, the resetting member is sleeved on the buffer section, and one end of the resetting member abuts against the third limiting surface.

In some embodiments, the adjusting rod further comprises an adjusting section, the adjusting section is arranged in the first cavity or penetrates through the first cavity, the adjusting section is connected with the first sealing section, and any one of a straight groove, a cross groove, a plum blossom groove, a cross groove or a star groove is formed in one end of the adjusting section, which is opposite to the first sealing section.

In some embodiments, an overflow channel is formed between the overflow valve body and the end cover or an overflow hole is formed in a section of the end cover located in the second cavity, one end of the overflow channel or the overflow hole is communicated with the liquid outlet, and the other end of the overflow channel or the overflow hole is communicated with the outside.

In some embodiments, the overflow valve sleeve assembly includes an overflow valve sleeve and an overflow valve seat, the overflow valve seat is disposed between the overflow valve sleeve and the overflow valve body, the liquid inlet ports are disposed on the overflow valve seat, and the overflow valve cavity and the liquid outlet port are disposed on the overflow valve sleeve.

Drawings

Fig. 1 is an integral relief valve according to an embodiment of the present invention, in an open state.

Fig. 2 is an enlarged view of fig. 1 at a.

Fig. 3 is an integral relief valve, closed, according to an embodiment of the present invention.

Reference numerals:

integral relief valve 100;

an overflow valve body 1; a housing chamber 11; a working fluid passage 12;

an end cap 2; a mounting cavity 21; a first chamber 211; a second cavity 212; a second stopper surface 213;

an overflow valve sleeve component 3; a liquid inlet hole 31; a liquid outlet 32; an overflow valve chamber 33; an overflow aperture 34; an overflow valve sleeve 35; an overflow valve seat 36;

a valve core component 4; an overflow valve spool 41; a first end 411, an abutment section 412; a second segment 413; a first segment 414; a first retaining surface 415; a second end 416; a reset member 42; an adjustment lever 43; a first seal segment 431; a second seal segment 432; a buffer section 433; a third stop surface 434; an adjustment segment 435; flower groove 436.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

The following describes the integral overflow valve 100 according to the embodiment of the present invention with reference to the drawings, as shown in fig. 1 to fig. 3, the integral overflow valve 100 according to the embodiment of the present invention includes an overflow valve body 1, an end cap 2, an overflow valve seat 36, an overflow valve sleeve 35 assembly 3 and a valve core assembly 4.

The overflow valve body 1 is internally provided with a containing cavity 11 and a working liquid channel 12, and the containing cavity 11 is communicated with the working liquid channel 12. The end cover 2 is provided with an installation cavity 21 penetrating through the end cover 2 along the thickness direction of the end cover 2.

The overflow valve sleeve 35 assembly 3 penetrates through the installation cavity 21 and the accommodating cavity 11, a liquid inlet hole 31 and a liquid outlet hole 32 are formed in the overflow valve sleeve 35 assembly 3, the overflow valve cavity 33 is formed in the overflow valve sleeve 35 assembly 3 and extends in the axial direction (the left and right directions in the figures 1 and 2) of the overflow valve sleeve 35 assembly 3, and the liquid inlet hole 31 and the liquid outlet hole 32 are communicated with the overflow valve cavity 33; and a valve core assembly 4, wherein the valve core assembly 4 is arranged in the overflow valve cavity 33.

According to the utility model discloses integral overflow valve 100, through wearing to establish overflow valve barrel 35 subassembly 3 in the cavity that forms between overflow valve body 1 and the end cover 2, establish case subassembly 4 in overflow valve chamber 33 simultaneously, make case subassembly 4 and overflow valve barrel 35 subassembly 3 form a whole, the installation and the dismantlement convenience of the overflow valve of being convenient for.

Therefore, integral overflow valve 100 according to the embodiment of the present invention has the advantage of convenient installation and disassembly.

As shown in fig. 1 to 3, the valve core assembly 4 includes an overflow valve core 41, a reset member 42 and an adjusting rod 43, which are sequentially disposed, the overflow valve core 41 is disposed in a section of the overflow valve cavity 33 disposed in the accommodating cavity 11, the overflow valve core 41 is movable along the overflow valve cavity 33, the adjusting rod 43 penetrates through the overflow valve cavity 33 and the mounting cavity 21, and two ends of the reset member 42 respectively abut against the overflow valve core 41 and the adjusting rod 43 in a one-to-one correspondence manner.

According to the embodiment of the present invention, the adjusting rod 43 is inserted into the overflow valve cavity 33 and the mounting cavity 21, and the two ends of the restoring member 42 are respectively abutted to the overflow valve core 41 and the adjusting rod 43 in a one-to-one manner. The regulating rod 43 and the resetting piece 42 are enabled to relatively limit the overflow valve core 41, so that the maximum axial stroke of the overflow valve core 41 is limited, the overflow valve core 41 is automatically reset through the resetting piece 42, and the purpose of recycling the overflow valve is achieved.

Optionally, the reset piece 42 comprises a reset pressure spring, and the spring is adopted for resetting, so that the reset effect is good, and the service life is long.

As shown in fig. 1 to 3, the spill valve member 41 has a first end 411 and a second end 416 that are arranged opposite to each other in the axial direction, the first end 411 is in sealing contact with or separated from the spill valve seat 36 in response to a pressure change at the fluid inlet hole 31, and the second end 416 is in contact with the reset member 42.

According to the utility model discloses integral overflow valve 100, first end 411 and overflow valve seat 36 are along with the sealed butt of pressure variation or the separation of feed liquor hole 31 department, realize under the cooperation that resets 42, make overflow valve core 41 along axial displacement, and then realize according to the state in the pressure adjustment overflow valve in the working solution passageway 12.

Specifically, the axis of the working-fluid passage 12, the axis of the fluid inlet hole 31, and the axis of the mounting hole are collinear. The force of the working fluid passage 12 on the relief valve spool 41 is in the axial direction, making the relief valve spool 41 more responsive to movement along the relief valve chamber 33.

As shown in fig. 1 to 3, one end of the spill valve core 41 has an abutting section 412, the abutting section 412 has a cross-sectional area gradually decreasing toward the liquid inlet hole 31, the spill valve core 41 is movable in the axial direction of the spill valve sleeve 35 assembly 3 between a first position where the end of the abutting section 412 having a smaller cross-sectional area penetrates inside the liquid inlet hole 31 and the abutting section 412 is in sealing abutment against the hole wall of the liquid inlet hole 31, and a second position where a gap is provided between the abutting section 412 and the hole wall of the liquid inlet hole 31.

According to the utility model discloses integral overflow valve 100, through reducing its cross-sectional area of butt section 412 towards the direction of feed liquor hole 31 gradually, for example, toper or frustum shape realize along with the axial removal of overflow case 41, in the working solution flows into overflow valve chamber 33 from the clearance between butt section 412 and the feed liquor hole 31 mouth, the clearance gradual change between butt section 412 and the feed liquor hole 31 mouth makes the pressure to overflow valve chamber 33 be unlikely to the surge, plays the effect of steady voltage.

As shown in fig. 1 to 3, the overflow valve core 41 further includes a first segment 414 and a second segment 413 connected to each other, the second segment 413 is fixed to one end of the abutting segment 412 having a larger cross-sectional area, a first limiting surface 415 is defined at a boundary between the first segment 414 and the second segment 413, and one end of the reset element 42 abuts on the first limiting surface 415. The abutting section 412 has one end with a larger cross-sectional area larger than the cross-sectional area of the opening of the liquid inlet hole 31, and the other end with a smaller cross-sectional area of the abutting section 412 is smaller than the cross-sectional area of the opening of the liquid inlet hole 31.

As shown in fig. 1 to 3, the installation cavity 21 includes a first cavity 211 and a second cavity 212 which are communicated with each other, the first cavity 211 and the second cavity 212 define a second limiting surface 213 at a junction, the overflow valve sleeve 35 assembly 3 penetrates through the second cavity 212, and the overflow valve sleeve 35 assembly 3 and the second limiting surface 213 can abut against each other; optionally, the cross-sectional area of the first cavity 211 < the cross-sectional area of the second cavity 212.

According to the utility model discloses integral overflow valve 100 through setting installation cavity 21 to different cross-sectional areas, makes things convenient for overflow valve barrel 35 subassembly 3's installation and sealed.

As shown in fig. 1 to fig. 3, the adjusting rod 43 includes a first sealing section 431, a second sealing section 432 and a buffer section 433 which are sequentially disposed, the first sealing section 431 is disposed in the first cavity 211, the first sealing section 431 is in sealing fit with the first cavity 211, the second sealing section 432 is disposed in the overflow valve cavity 33, the second sealing section 432 is in sealing fit with the overflow valve cavity 33, the buffer section 433 is detachably abutted against the overflow valve core 41, a third limiting surface 434 is defined at a junction of the second sealing section 432 and the buffer section 433, the resetting member 42 is sleeved on the buffer section 433, and one end of the resetting member 42 is abutted against the third limiting surface 434.

According to the utility model discloses integral overflow valve 100 adjusts first seal 431, second seal 432 and buffer 433 that pole 43 set gradually, seals the valve chamber body that overflow valve body 1 and end cover 2 formed (hold chamber 11 and installation cavity 21) through first seal 431, makes the working solution be unlikely to flow from end cover 2, has guaranteed integral overflow valve 100's leakproofness. While the second sealing segment 432 is in sealing engagement with the relief valve chamber 33.

Optionally, a threaded seal is used between the second sealing section 432 and the relief valve cavity 33, so that the adjustment rod 43 can be conveniently adjusted and detached.

As shown in fig. 1 to 3, the adjusting rod 43 further includes an adjusting segment 435, the adjusting segment 435 is disposed in the first cavity 211 or penetrates through the first cavity 211, the adjusting segment 435 is connected to the first sealing segment 431, a spline 436 is disposed at one end of the adjusting segment 435 opposite to the first sealing segment 431, and the spline 436 is any one of a straight groove, a cross groove, a plum blossom groove, a cross groove, or a star-shaped groove. According to the utility model discloses integral overflow valve 100 is through setting up the recess at regulation section 435, and it is rotatory that the pole 43 will be adjusted to the convenience, and then set for the pressure value when adopting screw seal to adjust overflow valve case 41 and external intercommunication between cooperation second seal section 432 and the overflow valve pocket 33, has improved and then integral overflow valve 100's suitability.

As shown in fig. 1 to fig. 3, an overflow hole 34 is formed at a section of the overflow channel or end cap 2 located in the second cavity 212 between the overflow valve body 1 and the end cap 2, one end of the overflow channel or overflow hole 34 is communicated with the liquid outlet 32, and the other end of the overflow channel or overflow hole 34 is communicated with the outside. That is, when the relief valve is in the relief state, the working fluid can smoothly flow out from the valve cavity (the accommodating chamber 11 and the mounting chamber 21).

As shown in fig. 1 to 3, the overflow valve sleeve 35 assembly 3 comprises an overflow valve sleeve 35 and an overflow valve seat 36, the overflow valve seat 36 is arranged between the overflow valve sleeve 35 and the overflow valve body 1, the liquid inlets are arranged on the overflow valve seat 36, and the overflow valve cavity 33 and the liquid outlet 32 are arranged on the overflow valve sleeve 35.

Specifically, the overflow valve sleeve 35 is provided with a mounting hole and a liquid outlet hole 32, the overflow valve cavity 33 of the overflow valve sleeve 35 extends along the axial direction of the overflow valve sleeve, the overflow valve seat 36 is arranged in the mounting hole, the overflow valve seat 36 and the overflow valve sleeve 35 are sealed, and the liquid inlet hole 31 and the liquid outlet hole 32 are both communicated with the overflow valve cavity 33.

Optionally, the overflow valve sleeve 35 and the overflow valve seat 36 are connected by a threaded structure for easy removal.

Optionally, the overflow valve sleeve 35 and the overflow valve seat 36 are of one-piece construction.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (10)

1. An integrated relief valve, comprising:

the overflow valve body is internally provided with an accommodating cavity and a working liquid channel, and the accommodating cavity is communicated with the working liquid channel;

the end cover is provided with an installation cavity penetrating through the end cover along the thickness direction of the end cover;

the overflow valve sleeve assembly penetrates through the installation cavity and the accommodating cavity, a liquid inlet hole and a liquid outlet hole are formed in the overflow valve sleeve assembly, the overflow valve cavity extends along the axial direction of the overflow valve sleeve assembly, and the liquid inlet hole and the liquid outlet hole are communicated with the overflow valve cavity; and

the valve core assembly is arranged in the overflow valve cavity.

2. The integral overflow valve of claim 1, wherein the valve core assembly comprises an overflow valve core, a reset member and an adjusting rod, which are sequentially arranged, the overflow valve core is arranged at one section of the overflow valve cavity arranged in the accommodating cavity, the overflow valve core is movable along the overflow valve cavity, the adjusting rod penetrates through the overflow valve cavity and the mounting cavity, and two ends of the reset member are respectively abutted against the overflow valve core and the adjusting rod in a one-to-one correspondence manner.

3. The integrated overflow valve of claim 2, wherein the overflow valve core has a first end and a second end which are oppositely arranged along the axial direction, the first end is in sealing contact with or separated from the overflow valve seat along with the pressure change at the inlet hole, and the second end is in contact with the reset piece.

4. The integrated relief valve according to claim 3, wherein the one end of the relief valve element has an abutting section whose cross-sectional area gradually decreases toward the liquid inlet hole, the relief valve element is movable in the axial direction of the relief valve sleeve assembly between a first position in which the one end of the abutting section having a smaller cross-sectional area is pierced in the liquid inlet hole and the abutting section is sealingly abutted against a hole wall of the liquid inlet hole, and a second position in which a gap is provided between the abutting section and the hole wall of the liquid inlet hole.

5. The integrated relief valve according to claim 4, wherein the relief valve spool further comprises a first section and a second section connected to each other, the second section is fixed to an end of the abutting section having a larger cross-sectional area, a first limiting surface is defined at a junction of the first section and the second section, and one end of the resetting member abuts against the first limiting surface.

6. The integral overflow valve according to any one of claims 2-5, wherein the mounting cavity comprises a first cavity and a second cavity which are communicated with each other, a second limiting surface is defined at the junction of the first cavity and the second cavity, the overflow valve sleeve assembly is penetrated in the second cavity, and the overflow valve sleeve assembly can be abutted against the second limiting surface.

7. The integral overflow valve of claim 6, wherein the adjusting rod comprises a first sealing section, a second sealing section and a buffering section, the first sealing section is disposed in the first cavity, the first sealing section is in sealing fit with the first cavity, the second sealing section is disposed in the overflow valve cavity, the second sealing section is in sealing fit with the overflow valve cavity, the buffering section detachably abuts against the overflow valve core, a third limiting surface is defined at a junction of the second sealing section and the buffering section, the resetting member is sleeved on the buffering section, and one end of the resetting member abuts against the third limiting surface.

8. The integral overflow valve of claim 7, wherein the adjusting rod further comprises an adjusting segment, the adjusting segment is disposed in the first cavity or penetrates through the first cavity, the adjusting segment is connected with the first sealing segment, and one end of the adjusting segment, which is opposite to the first sealing segment, is provided with any one of a straight groove, a cross groove, a quincuncial groove, a cross groove or a star groove.

9. The integral overflow valve according to any one of claims 7 to 8, wherein an overflow channel is formed between the overflow valve body and the end cover or an overflow hole is arranged at a section of the end cover positioned in the second cavity, one end of the overflow channel or the overflow hole is communicated with the liquid outlet, and the other end of the overflow channel or the overflow hole is communicated with the outside.

10. The integrated overflow valve of any one of claims 7-8 wherein the overflow valve sleeve assembly comprises an overflow valve sleeve and an overflow valve seat, the overflow valve seat is disposed between the overflow valve sleeve and the overflow valve body, the liquid inlet ports are disposed on the overflow valve seat, and the overflow valve cavity and the liquid outlet ports are disposed on the overflow valve sleeve.

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