CN207796123U - A kind of flow control valve seat - Google Patents

Abstract

The utility model is related to a kind of flow control valve seats, including ontology, body bottom portion is equipped with guide ring, ontology is formed with connector with guide ring, ontology is formed with annular groove with guide ring, annular groove upper wall is equipped with the first locating ring and the second locating ring, annular groove lower wall is equipped with third locating ring and the 4th locating ring, first locating ring, second locating ring, the section of third locating ring and the 4th locating ring is hemispherical, sealing ring is installed in annular groove, body peripheral is equipped with first step, ontology is equipped with internal thread, guide ring periphery is equipped with second step, guide ring bottom is equipped with door, door includes the first mounting portion and the second mounting portion, second mounting portion coordinates with second step limit, the inner circumferential of first mounting portion is equipped with external screw thread, it is embedded with rubber pad between the top and first step of first mounting portion.The utility model is compact-sized, easy to assembly, ensure that the air-tightness in valve seat, extends flow control valve seat service life.

Description

A kind of flow control valve seat

Technical field

The utility model is related to technical field, more particularly to a kind of flow control valve seat.

Background technology

Valve seat is increasingly taken seriously, is used in the prior art as the necessary part in work system, superior performance Be that sealing ring is embedded at the connector of valve seat to ensure the leakproofness at connector, the smaller valve seat of connector is come It says, operator is inconvenient to install sealing ring, there is a situation where that assembly is not in place, and spool and valve seat connector activity cooperation Under state, the sealing ring that spool is easy to be embedded in connector squeezes out, and leads to gas leakage in valve seat, causes flow control valve seat can not It uses.

Invention content

The purpose of this utility model is that it is in view of the drawbacks of the prior art and insufficient, a kind of flow control valve seat is provided, this Body cooperatively forms the annular groove being connected to connector with guide ring, and downwardly convex be equipped with of the upper wall of annular groove is determined in first be distributed with one heart Position ring and the second locating ring, the lower wall of annular groove is upward convex to be equipped with third locating ring corresponding with the first locating ring and determines with second Corresponding 4th locating ring of position ring, the section of the first locating ring, the section of the second locating ring, the section of third locating ring and the The section of four locating rings is hemispherical, and sealing ring is installed in annular groove, passes through the cooperation of the first locating ring and third locating ring And second the cooperation of locating ring and the 4th locating ring sealing ring is positioned, can prevent spool from coordinating with valve seat connector activity In the state of sealing ring the case where being squeezed out, ensure that the air-tightness in valve seat, extend flow control valve seat and use the longevity Life, guide ring are detachably connected with ontology, can ensure to make sealing ring assembly in operator's course of work in place, and facilitate peace Dress.

To achieve the above object, the utility model uses following technical scheme.

A kind of flow control valve seat described in the utility model, including ontology, the bottom of ontology are equipped with guide ring, ontology with Guide ring has cooperatively formed connector, and ontology and guide ring cooperatively form the annular groove being connected to connector, the upper wall of annular groove to Under be convexly equipped in the first locating ring and the second locating ring that are distributed with one heart, the lower wall of annular groove is upward convex to be equipped with and the first locating ring pair The third locating ring and the 4th locating ring corresponding with the second locating ring answered, the section of the first locating ring, the second locating ring The section in section, the section of third locating ring and the 4th locating ring is hemispherical, and sealing ring is installed in annular groove, passes through One locating ring positions sealing ring with the cooperation of third locating ring and the cooperation of the second locating ring and the 4th locating ring, ontology Periphery is equipped with first step, is equipped with internal thread on ontology between bottom and first step, and the periphery of guide ring is equipped with second The bottom of step, guide ring is equipped with door, and door includes the first mounting portion and the second mounting portion being connected with each other, the second mounting portion It limits and coordinates with second step, the inner circumferential of the first mounting portion is equipped with the external screw thread with screw-internal thread fit, the top of the first mounting portion Rubber pad is embedded between first step, guide ring is connect by door with ontology.

Further, guide ring includes the first guide part and the second guide part being connected with each other, the first guide part and second Guide part cooperatively forms second step, and the first guide part and body fits form annular groove, the first guide part and the second mounting portion Bottom limit cooperation, the periphery of the first guide part and the inner circumferential of the first mounting portion offset, the periphery of the second guide part and the second peace The inner circumferential in dress portion offsets.

Further, the first locating ring and the second locating ring are set to the bottom of ontology, third locating ring and the 4th positioning Ring is equipped with the top of the first guide part.

Further, the bottom inner circumferential of the second guide part is equipped with chamfering.

The utility model has the beneficial effect that：Ontology is cooperatively formed with guide ring in the utility model is connected to connector Annular groove, the upper wall of annular groove is downwardly convex to be equipped in the first locating ring and the second locating ring being distributed with one heart, and the lower wall of annular groove is upward convex Equipped with and the corresponding third locating ring of the first locating ring and the 4th locating ring corresponding with the second locating ring, it is installed in annular groove Sealing ring will be sealed by the cooperation of the first locating ring and third locating ring and the cooperation of the second locating ring and the 4th locating ring The case where drawing a circle to approve position, capable of preventing spool from being squeezed out with sealing ring in the state of valve seat connector activity cooperation, it is dual fixed Position ring cooperation and the section of the first locating ring, the section of the second locating ring, the section of third locating ring and the 4th locating ring Section is hemispherical, further positions sealing ring, ensure that the air-tightness in valve seat, extends the use of flow control valve seat Service life；The periphery of ontology is equipped with first step, internal thread is equipped between first step and body bottom portion, the periphery of guide ring is equipped with The bottom of second step, guide ring is equipped with door, and door includes the first mounting portion and the second mounting portion being connected with each other, the second peace Dress portion coordinates with second step limit, and the inner circumferential of the first mounting portion is equipped with the external screw thread with screw-internal thread fit, guide ring and ontology It is detachably connected, can ensure to make sealing ring assembly in operator's course of work in place, and facilitate installation；First mounting portion It is embedded with rubber pad between top and first step, the external screw thread of door and ontology connects more under the action of being connected to rubber pad Securely, the stability between ontology, guide ring and door is also ensured.The utility model structure setting is reasonable, easy to assembly, protects The air-tightness in valve seat has been demonstrate,proved, flow control valve seat service life is extended.

Description of the drawings

Fig. 1 is the overall structure sectional view of the utility model.

Fig. 2 is the enlarged drawing of A in the utility model.

In figure:1, ontology；2, guide ring；3, connector；4, annular groove；5, the first locating ring；6, the second locating ring；7, third Locating ring；8, the 4th locating ring；9, sealing ring；10, first step；11, internal thread；12, second step；13, door；14, One mounting portion；15, the second mounting portion；16, external screw thread；17, rubber pad；18, the first guide part；19, the second guide part.

Specific implementation mode

The utility model will be further described below with reference to the accompanying drawings.

As depicted in figs. 1 and 2, a kind of flow control valve seat described in the utility model, including ontology 1, the bottom of ontology 1 Equipped with guide ring 2, ontology 1 has cooperatively formed connector 3 with guide ring 2, and ontology 1 has cooperatively formed and connector 3 with guide ring 2 The annular groove 4 of connection, the upper wall of annular groove 4 is downwardly convex to be equipped in the first locating ring 5 and the second locating ring 6 being distributed with one heart, annular groove 4 Lower wall is upward convex to be equipped with and the corresponding third locating ring 7 of the first locating ring 5 and the 4th locating ring corresponding with the second locating ring 6 8, sealing ring 9 is installed in annular groove 4, cooperation and the second locating ring 6 by the first locating ring 5 with third locating ring 7 and the The cooperation of four locating rings 8 positions sealing ring 9, can prevent spool and sealing ring 9 in the state of the 3 activity cooperation of valve seat connector The case where being squeezed out, the cooperation of Dual positioning ring and the section of the first locating ring 5, the section of the second locating ring 6, third positioning The section of ring 7 and the section of the 4th locating ring 8 are hemispherical, further position sealing ring, ensure that the gas in valve seat Close property extends flow control valve seat service life；The periphery of ontology 1 is equipped with first step 10, and bottom and the is located on ontology 1 Internal thread 11 is equipped between one step 10, the periphery of guide ring 2 is equipped with second step 12, and the bottom of guide ring 2 is equipped with door 13, Door 13 includes the first mounting portion 14 and the second mounting portion 15 being connected with each other, and the second mounting portion 15 is matched with the limit of second step 12 It closes, the inner circumferential of the first mounting portion 14 is equipped with the external screw thread 16 coordinated with internal thread 11, and guide ring 2 is connected by door 13 and ontology 1 It connects, guide ring 2 is detachably connected with ontology 1, can ensure to make the assembly of sealing ring 9 in operator's course of work in place, Er Qiefang Just it installs；It is embedded with rubber pad 17, the external screw thread of door 13 and ontology 1 between the top and first step 10 of first mounting portion 14 It is connected under the action of rubber pad 17 and connects more securely, also ensure the stability between ontology 1, guide ring 2 and door 13.

Sealing ring 9 is first placed in 1 the first locating ring of bottom 5 and second of ontology positioning 6 by the utility model, in sealing ring Guide ring 2 is placed on 9, the cooperation and the second locating ring 6 by the first locating ring 5 with third locating ring 7 and the 4th locating ring 8 Cooperation sealing ring 9 is positioned, door 13 is finally installed, is threadedly coupled with ontology with the limit of guide ring 2 with merging.

Guide ring 2 includes the first guide part 18 and the second guide part 19 being connected with each other, and the first guide part 18 is led with second Second step 12 is cooperatively formed to portion 19, the first guide part 18 cooperatively forms annular groove 4, the first guide part 18 and second with ontology 1 The bottom limit cooperation of mounting portion 15, the periphery of the first guide part 18 and the inner circumferential of the first mounting portion 14 offset, the second guide part 19 periphery and the inner circumferential of the second mounting portion 15 offset, compact-sized, more stablize when use.

First locating ring 5 and the second locating ring 6 are set to the bottom of ontology 1, and third locating ring 7 and the 4th locating ring 8 are Top equipped with the first guide part 18；The bottom inner circumferential of second guide part 19 is equipped with chamfering, can preferably install spool.

The above description is only a preferred embodiment of the present invention, therefore all according to described in the utility model patent application range The equivalent change or modification done of structure, feature and principle, be included in the scope of the utility model patent application.

Claims (4)

1. a kind of flow control valve seat, it is characterised in that：Including ontology（1）, ontology（1）Bottom be equipped with guide ring（2）, ontology （1）With guide ring（2）Connector is cooperatively formed（3）, ontology（1）With guide ring（2）It has cooperatively formed and connector（3）Connection Annular groove（4）, annular groove（4）Upper wall downwardly convex be equipped in the first locating ring for being distributed with one heart（5）With the second locating ring（6）, ring Slot（4）Lower wall it is upward convex be equipped with and the first locating ring（5）Corresponding third locating ring（7）And with the second locating ring（6）It is right The 4th locating ring answered（8）, the first locating ring（5）Section, the second locating ring（6）Section, third locating ring（7）Section And the 4th locating ring（8）Section be hemispherical, annular groove（4）Inside it is installed with sealing ring（9）, pass through the first locating ring（5） With third locating ring（7）Cooperation and the second locating ring（6）With the 4th locating ring（8）Cooperation by sealing ring（9）Positioning, this Body（1）Periphery be equipped with first step（10）, ontology（1）It is upper to be located at bottom and first step（10）Between be equipped with internal thread （11）, guide ring（2）Periphery be equipped with second step（12）, guide ring（2）Bottom be equipped with door（13）, door（13）Including The first mounting portion being connected with each other（14）With the second mounting portion（15）, the second mounting portion（15）With second step（12）Limit is matched It closes, the first mounting portion（14）Inner circumferential be equipped with and internal thread（11）The external screw thread of cooperation（16）, the first mounting portion（14）Top With first step（10）Between be embedded with rubber pad（17）, guide ring（2）Pass through door（13）With ontology（1）Connection.

2. a kind of flow control valve seat according to claim 1, it is characterised in that：Guide ring（2）Including interconnection First guide part（18）With the second guide part（19）, the first guide part（18）With the second guide part（19）Cooperatively form second step （12）, the first guide part（18）With ontology（1）Cooperatively form annular groove（4）, the first guide part（18）With the second mounting portion（15）'s Bottom limit cooperation, the first guide part（18）Periphery and the first mounting portion（14）Inner circumferential offset, the second guide part（19）'s Periphery and the second mounting portion（15）Inner circumferential offset.

3. a kind of flow control valve seat according to claim 2, it is characterised in that：First locating ring（5）With the second positioning Ring（6）It is set to ontology（1）Bottom, third locating ring（7）With the 4th locating ring（8）It is equipped with the first guide part（18）Top Portion.

4. a kind of flow control valve seat according to claim 2, it is characterised in that：Second guide part（19）Bottom inner circumferential Equipped with chamfering.