CN210920158U

CN210920158U - High-precision self-supporting regulating valve

Info

Publication number: CN210920158U
Application number: CN201921030291.3U
Authority: CN
Inventors: 俞斌
Original assignee: Hangzhou Fuyang Central Asia Valve Industry Co ltd
Current assignee: Hangzhou Fuyang Central Asia Valve Industry Co ltd
Priority date: 2019-07-04
Filing date: 2019-07-04
Publication date: 2020-07-03
Anticipated expiration: 2029-07-04

Abstract

The utility model discloses a high accuracy self-reliance governing valve, include the governing valve body, admit air inner chamber, adjust cavity and intercommunicating pore, the inside of governing valve body is provided with the disk seat, and the top surface of disk seat is connected with the valve barrel, the inside of valve barrel runs through there is the valve rod, the inner chamber that admits air sets up inside the positive left side of disk seat, and the right side of the inner chamber that admits air is provided with the inner chamber of giving vent to anger, the intercommunicating pore sets up between the inner chamber of admitting air and the inner chamber of giving vent to anger, and the inside of intercommunicating pore is. The utility model discloses a size setting between lug and the recess for it can be spacing between push rod and the connection inner chamber, reduce with this because the gap of connecting between it is great, lead to the valve rod to be connecting the dislocation of the inside great degree that produces of inner chamber, thereby bring inconvenience to going on of valve rod oscilaltion work, and then cause the influence to this work efficiency of self-supporting governing valve.

Description

High-precision self-supporting regulating valve

Technical Field

The utility model relates to a governing valve technical field specifically is a high accuracy self-reliance governing valve.

Background

The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element is used for changing the process parameters such as medium flow, pressure, temperature, liquid level and the like by receiving a control signal output by a regulating control unit and by means of power operation; generally comprises an actuating mechanism and a valve; in the automatic control of modern factories, regulating valves play a very important role; therefore, the self-supporting regulating valve is innovated and designed, and the development of the production technology of the regulating valve is promoted.

The existing regulating valve cannot limit the position between the valve rod and the connecting piece of the up-down lifting, so that gaps between the valve rod and the connecting piece are large, large-degree dislocation is caused between the valve rod and the connecting piece, abrasion damage is caused to the connecting piece between the valve rod and the connecting piece, inconvenience is brought to the up-down lifting work of the valve rod, and then the work efficiency of the regulating valve is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high accuracy self-reliance governing valve to solve the current governing valve that proposes among the above-mentioned background art because it can not carry on spacingly between the valve rod of oscilaltion and the connecting piece, thereby lead to because the gap of junction is great between it, cause great degree dislocation between valve rod and the connecting piece, thereby cause wearing and tearing damage to the junction between it, bring inconvenience to going on of valve rod oscilaltion work simultaneously, and then cause the problem of influence to the work efficiency of this governing valve.

In order to achieve the above object, the utility model provides a following technical scheme: a high-precision self-supporting regulating valve comprises a regulating valve body, an air inlet inner cavity, a regulating cavity and a communicating hole, wherein a valve seat is arranged in the regulating valve body, a valve sleeve is connected to the top end surface of the valve seat, a valve rod penetrates through the interior of the valve sleeve, the air inlet inner cavity is arranged in the front left side of the valve seat, an air outlet inner cavity is arranged on the right side of the air inlet inner cavity, the communicating hole is arranged between the air inlet inner cavity and the air outlet inner cavity, a sealing mechanism is arranged in the communicating hole, a first sealing ring is fixed on the inner wall surface of the valve sleeve, a limiting block is arranged under the first sealing ring, a reset spring is connected to the top end surface of the limiting block, the limiting block is arranged on the outer wall surface of the valve rod, a second sealing ring is arranged in the top end of the valve seat, and a roller is arranged inside the surface of the outer wall above the valve rod.

Preferably, the sealing mechanism comprises a sealing valve core, a flow regulating valve core and limiting sealing grease, the bottom end surface of the sealing valve core is connected with the flow regulating valve core, and the top end surface of the sealing valve core is provided with the limiting sealing grease.

Preferably, the outer wall surface of the sealing valve core is tightly attached to the inner wall surface of the communicating hole, the outer wall surface of the bottom end of the flow regulating valve core is of a horn-shaped structure, and the diameter of the limiting sealing grease is larger than that of the communicating hole.

Preferably, the first sealing ring is parallel to the second sealing ring, and the inner wall surfaces of the first sealing ring and the second sealing ring are tightly attached to the outer wall surface of the valve rod.

Preferably, the top outer wall surface of the limiting block is tightly attached to the bottom outer wall surface of the reset spring, and the valve rod is matched with the valve sleeve through the limiting block and the reset spring to form a telescopic structure.

Preferably, stop gear's inside is including connecting inner chamber, push rod, lug, recess and spacing spring, the internal connection of connecting the inner chamber has the push rod, and the outer wall surface of push rod is provided with the lug, the inner wall surface of connecting the inner chamber is provided with the recess, the inside spacing spring that is provided with in top of connecting the inner chamber.

Preferably, the size between the convex block and the groove is matched, and the push rod is matched with the connecting inner cavity through the convex block and the groove to form a lifting structure.

Preferably, the outer wall surface of the roller is connected with the inner wall surface of the valve sleeve, and the valve rod forms a sliding structure with the valve sleeve through the roller.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a contact between sealed case and the intercommunicating pore, seal between inner chamber and the inner chamber of giving vent to anger admits air, and through the contact between spacing sealed fat and the intercommunicating pore top outer wall surface, guarantee the sealing performance between inner chamber and the inner chamber of giving vent to anger admits air, improve the sealing performance of this self-supporting governing valve with this, through being connected between tubaeform flow regulating case and the intercommunicating pore, adjust the penetrating area of intercommunicating pore in real time, regulate and control the speed of gas flow and the volume of flow between inner chamber and the inner chamber of giving vent to anger with this, thereby improved the flexibility performance that this self-supporting governing valve used;

2. the utility model extrudes the stopper which moves upwards downwards through the deformation generated by the reset spring, so as to move the valve rod, thereby leading the sealing valve core to be connected with the communication hole, and closing the self-supporting regulating valve, therefore, the reset spring is convenient for the self-supporting regulating valve to be used;

3. the utility model discloses a size setting between lug and the recess for it can be spacing between push rod and the connection inner chamber, reduce with this because the gap of connecting between it is great, lead to the valve rod to be connecting the dislocation of the inside great degree that produces of inner chamber, thereby bring inconvenience to going on of valve rod oscilaltion work, and then cause the influence to this work efficiency of self-supporting governing valve.

Drawings

FIG. 1 is a schematic view of the front view of the internal structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic view of the local top view structure of the present invention.

In the figure: 1. a regulating valve body; 2. a valve seat; 3. a valve housing; 4. a valve stem; 5. an air inlet inner cavity; 6. an air outlet inner cavity; 7. a sealing mechanism; 701. sealing the valve core; 702. a flow regulating valve core; 703. limiting sealing grease; 8. a first seal ring; 9. a limiting block; 10. a return spring; 11. a second seal ring; 12. a gas pipeline; 13. a limiting mechanism; 1301. connecting the inner cavity; 1302. a push rod; 1303. a bump; 1304. a groove; 1305. a limiting spring; 14. adjusting the cavity; 15. a communicating hole; 16. and a roller.

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. 1-3, the present invention provides a technical solution: a high-precision self-supporting regulating valve comprises a regulating valve body 1, an air inlet inner cavity 5, a regulating cavity 14 and a communicating hole 15, wherein a valve seat 2 is arranged inside the regulating valve body 1, a valve sleeve 3 is connected to the top end surface of the valve seat 2, a valve rod 4 penetrates through the interior of the valve sleeve 3, the air inlet inner cavity 5 is arranged inside the front left side of the valve seat 2, an air outlet inner cavity 6 is arranged on the right side of the air inlet inner cavity 5, the communicating hole 15 is arranged between the air inlet inner cavity 5 and the air outlet inner cavity 6, a sealing mechanism 7 is arranged inside the communicating hole 15, the sealing mechanism 7 comprises a sealing valve core 701, a flow regulating valve core 702 and limiting sealing grease 703, the bottom end surface of the sealing valve core 701 is connected with the flow regulating valve core 702, the top end surface of the sealing valve core 701 is provided with the limiting sealing grease, and, the outer wall surface of the bottom end of the flow regulating valve core 702 is in a horn-shaped structure, the diameter of the limiting sealing grease 703 is larger than that of the communicating hole 15, the air inlet inner cavity 5 and the air outlet inner cavity 6 are sealed through the contact between the sealing valve core 701 and the communicating hole 15, the sealing performance between the air inlet inner cavity 5 and the air outlet inner cavity 6 is guaranteed through the contact between the limiting sealing grease 703 and the outer wall surface of the top end of the communicating hole 15, the sealing performance of the self-supporting regulating valve is improved, the through area of the communicating hole 15 is regulated in real time through the connection between the horn-shaped flow regulating valve core 702 and the communicating hole 15, the gas flowing speed and the flowing amount between the air inlet inner cavity 5 and the air outlet inner cavity 6 are regulated and controlled, and the use flexibility of the self-supporting regulating valve is improved;

a first sealing ring 8 is fixed on the inner wall surface of the valve sleeve 3, a limiting block 9 is arranged under the first sealing ring 8, the first sealing ring 8 is parallel to a second sealing ring 11, the inner wall surfaces of the first sealing ring 8 and the second sealing ring 11 are tightly attached to the outer wall surface of the valve rod 4, gaps among the valve rod 4, the valve seat 2 and the valve sleeve 3 are filled through the contact between the sealing rings and the valve rod 4, so that the three parts are sealed and protected, the defect of poor sealing performance among the three parts is reduced, the lifting accuracy of the valve rod 4 is influenced, the use flexibility of the regulating valve is further influenced, the outer wall surface at the top end of the limiting block 9 is tightly attached to the outer wall surface at the bottom end of a reset spring 10, and the valve rod 4 forms a telescopic structure with the valve sleeve 3 through the matching of the limiting block 9 and the reset spring 10, the stopper 9 which has moved upward is pressed downward by the deformation of the return spring 10, so that the valve rod 4 is moved, and the sealing valve core 701 can be connected with the communication hole 15, so that the self-standing regulating valve is closed, and the arrangement of the return spring 10 provides convenience for the use of the self-standing regulating valve;

the top end surface of the limiting block 9 is connected with a return spring 10, the limiting block 9 is arranged on the outer wall surface of the valve rod 4, a second sealing ring 11 is arranged inside the top end of the valve seat 2, the top end surface of the adjusting cavity 14 is connected with an air transmission pipeline 12, the inside of the adjusting cavity 14 is provided with a limiting mechanism 13, the inside of the limiting mechanism 13 comprises a connecting inner cavity 1301, a push rod 1302, a bump 1303, a groove 1304 and a limiting spring 1305, the inside of the connecting inner cavity 1301 is connected with the push rod 1302, the outer wall surface of the push rod 1302 is provided with the bump 1303, the inner wall surface of the connecting inner cavity 1301 is provided with the groove 1304, the limiting spring 1305 is arranged inside the top end of the connecting inner cavity 1301, the bump 1303 is matched with the groove 1304 in size, the push rod 1302 forms a lifting structure with the connecting inner cavity 1301 through the matching of the bump 1303 and the groove 1304, the, reduce with this because the gap of connecting between it is great, lead to valve rod 4 to produce the dislocation of great degree inside connecting inner chamber 1301, thereby bring inconvenience to going on of valve rod 4 oscilaltion work, and then cause the influence to this self-supporting governing valve's work efficiency, the top outer wall surface internally mounted of valve rod 4 has gyro wheel 16, the outer wall surface of gyro wheel 16 is connected with the inner wall surface of valve barrel 3, and valve rod 4 constitutes sliding structure through gyro wheel 16 between 3 with the valve barrel, the roll through gyro wheel 16 reduces the area of contact between valve rod 4 and the valve barrel 3, provide favorable condition for going on of valve rod 4 at the inside oscilaltion work of valve barrel 3 simultaneously, thereby reach the effect of a lubrication protection.

The working principle is as follows: for the high-precision self-supporting regulating valve, when the high-precision self-supporting regulating valve is used, firstly, the air pressure inside the top end of the connecting inner cavity 1301 is changed through the air transmission pipeline 12, namely when the internal air pressure is reduced, the valve rod 4 is caused to move upwards in the self-supporting regulating valve through the action of air pressure difference, so that the sealing valve core 701 is separated from the communication hole 15, and the through area of the communication hole 15 is regulated in real time through the overlapping area between the flow regulating valve core 702 and the communication hole 15, so that the flow passing between the air inlet inner cavity 5 and the air outlet inner cavity 6 is regulated and controlled;

when the air pressure inside the top end of the connecting inner cavity 1301 is increased, the valve rod 4 moves downwards through the air pressure difference, so that the sealing valve core 701 is in contact connection with the communicating hole 15, the return spring 10 extrudes the limiting block 9 and the limiting spring 1305 and the push rod 1302 assist in the downward movement of the valve rod 4, the limiting sealing grease 703 can be tightly connected with the outer wall surface of the top end of the communicating hole 15, so that the air inlet inner cavity 5 and the air outlet inner cavity 6 are sealed, the sealing performance of the self-supporting regulating valve is effectively improved, the requirement of high precision of the self-supporting regulating valve is met, the resistance between the valve rod 4 and the valve sleeve 3 is reduced through the rolling of the roller 16 when the valve rod 4 is lifted, and favorable conditions are provided for the lifting operation of the valve rod 4 in the valve sleeve 3, and through the contact between the sealing washer of obstructed position and valve rod 4, fill the gap between valve rod 4 and disk seat 2, valve barrel 3 to this protects sealing between the above-mentioned three, thereby reduced because the not good of sealing performance between the above-mentioned three, cause the influence to the accuracy of valve rod 4 lift, can know through the above-mentioned change of its internal gas pressure of this governing valve, whether adjust and control its work in real time, this setting up the effectual flexibility performance that improves this governing valve and use, so just accomplished this high accuracy self-supporting governing valve's use.

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

1. The utility model provides a high accuracy self-reliance governing valve, includes governing valve body (1), air inlet inner chamber (5), regulation cavity (14) and intercommunicating pore (15), its characterized in that: the valve comprises a regulating valve body (1), wherein a valve seat (2) is arranged in the regulating valve body (1), a valve sleeve (3) is connected to the top end surface of the valve seat (2), a valve rod (4) penetrates through the valve sleeve (3), an air inlet inner cavity (5) is arranged in the front left side of the valve seat (2), an air outlet inner cavity (6) is arranged on the right side of the air inlet inner cavity (5), a communication hole (15) is arranged between the air inlet inner cavity (5) and the air outlet inner cavity (6), a sealing mechanism (7) is arranged in the communication hole (15), a first sealing ring (8) is fixed on the inner wall surface of the valve sleeve (3), a limiting block (9) is arranged under the first sealing ring (8), a reset spring (10) is connected to the top end surface of the limiting block (9), the limiting block (9) is arranged on the outer wall surface of the valve rod (4), a second sealing ring (, the top surface of adjusting cavity (14) is connected with gas transmission pipeline (12), and the inside of adjusting cavity (14) is provided with stop gear (13), gyro wheel (16) are installed to the top outer wall surface internal portion of valve rod (4).

2. A high accuracy self-supporting regulator valve in accordance with claim 1 wherein: the sealing mechanism (7) comprises a sealing valve core (701), a flow regulating valve core (702) and limiting sealing grease (703) inside, the bottom end surface of the sealing valve core (701) is connected with the flow regulating valve core (702), and the top end surface of the sealing valve core (701) is provided with the limiting sealing grease (703).

3. A high accuracy self-supporting regulator valve in accordance with claim 2 wherein: the outer wall surface of the sealing valve core (701) is tightly attached to the inner wall surface of the communicating hole (15), the outer wall surface of the bottom end of the flow regulating valve core (702) is of a horn-shaped structure, and the diameter of the limiting sealing grease (703) is larger than that of the communicating hole (15).

4. A high accuracy self-supporting regulator valve in accordance with claim 1 wherein: the first sealing ring (8) is parallel to the second sealing ring (11), and the inner wall surfaces of the first sealing ring (8) and the second sealing ring (11) are tightly attached to the outer wall surface of the valve rod (4).

5. A high accuracy self-supporting regulator valve in accordance with claim 1 wherein: the valve is characterized in that the top end outer wall surface of the limiting block (9) is tightly attached to the bottom end outer wall surface of the reset spring (10), and the valve rod (4) forms a telescopic structure with the valve sleeve (3) through the matching of the limiting block (9) and the reset spring (10).

6. A high accuracy self-supporting regulator valve in accordance with claim 1 wherein: the limiting mechanism (13) is internally provided with a connecting inner cavity (1301), a push rod (1302), a bump (1303), a groove (1304) and a limiting spring (1305), the connecting inner cavity (1301) is internally connected with the push rod (1302), the bump (1303) is arranged on the outer wall surface of the push rod (1302), the groove (1304) is arranged on the inner wall surface of the connecting inner cavity (1301), and the limiting spring (1305) is arranged inside the top end of the connecting inner cavity (1301).

7. A high accuracy self-supporting regulator valve in accordance with claim 6 wherein: the size of the convex block (1303) is matched with that of the groove (1304), and the push rod (1302) forms a lifting structure with the connection cavity (1301) through the matching of the convex block (1303) and the groove (1304).

8. A high accuracy self-supporting regulator valve in accordance with claim 1 wherein: the outer wall surface of the roller (16) is connected with the inner wall surface of the valve sleeve (3), and the valve rod (4) forms a sliding structure with the valve sleeve (3) through the roller (16).