CN210566283U

CN210566283U - Choke type throttle valve

Info

Publication number: CN210566283U
Application number: CN201921457040.3U
Authority: CN
Inventors: 李守刚
Original assignee: Jiangsu Wellhead Drilling Equipment Co ltd
Current assignee: Jiangsu Wellhead Drilling Equipment Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-05-19
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a choke formula choke valve, connect and connect including casing, disk seat, case, air inlet, the disk seat sets up the inside at the casing, the inside wall sliding connection of case and casing, the air inlet connects and connects the inside that sets up the air inlet and the gas outlet at the casing respectively with the gas outlet, the viewing aperture has been seted up to the lateral wall of casing, the inside threaded connection of viewing aperture has the viewing aperture pipe plug. The utility model discloses, through the position that reciprocates the control valve core of installation piece, control the flow in the casing, calculate the flow through rotatory handle pivoted number of turns, reach the purpose of carrying out linear control to the flow, effectively improved the regulation precision, effectively fixed the position of screw thread piece through stop gear simultaneously, prevent to make screw thread piece appear reverse movement under the non-artificial control under the impact of the inside flow of casing, further assurance flow control's accurate nature.

Description

Choke type throttle valve

Technical Field

The utility model relates to a choke valve technical field especially relates to a choke formula choke valve.

Background

The throttle valve is a valve for controlling the flow of fluid by changing the throttle section or the throttle length, has no flow negative feedback function, cannot compensate the speed instability caused by load change, and is generally only used in the occasions with small load change or low requirement on speed stability, wherein the throttle valve is often used for controlling the flow in the conveying process in the pneumatic conveying process. Most of existing choke-type throttle valves can only perform nonlinear flow regulation, and certain defects exist in regulation precision and regulation linearity, the choke valve suitable for pneumatic transmission provided by the publication number CN208487214U can perform linear control on the flow in the choke-type throttle valve, but the flow in a shell is simply linearly regulated by utilizing thread rotation, so that the threaded connection part is approximately reversely rotated due to flow impact in the shell, and therefore large errors occur in the flow control precision, and inconvenience is brought to the work of workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the flow in the simple utilization screw thread linear regulation casing among the prior art easily leads to the reverse rotation to appear in threaded connection department and leads to the great error to appear in flow control precision, and the choke valve that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the choke type throttle valve comprises a shell, a valve seat, a valve core, an air inlet joint and an air outlet joint, wherein the valve seat is arranged inside the shell, the valve core is connected with the inner side wall of the shell in a sliding manner, the air inlet joint and the air outlet joint are respectively arranged inside an air inlet and an air outlet of the shell, an observation port is formed in the side wall of the shell, an observation port pipe plug is connected to the inside of the observation port in a threaded manner, a mounting plate is fixedly connected to the top of the valve seat, and through holes matched with the valve core are formed in the tops of the valve seat and the mounting plate; the upper surface of mounting panel has been seted up two and has been the symmetry and set up the mounting groove, the inside wall of mounting groove is rotated and is connected with the threaded rod, two the one end that the threaded rod was kept away from each other all runs through the mounting groove and outwards extends, the lateral wall screw thread of threaded rod has cup jointed the thread piece, the lateral wall of thread piece and the inside wall sliding connection of mounting groove, the lateral wall of case is fixed to have cup jointed the installation piece, the lateral wall of installation piece is rotated and is connected with two connecting rods, two the bottom of connecting rod rotates with the lateral wall of two thread pieces respectively and is connected, the interior bottom of mounting groove is provided with a plurality of stop gear.

Preferably, one end of the threaded rod extending outwards is fixedly connected with a rotating handle.

Preferably, a limiting plate is fixedly connected to the top of the valve core.

Preferably, the outer side wall of the thread block is fixedly connected with a T-shaped sliding block, and the inner side wall of the mounting groove is provided with a sliding groove matched with the sliding block.

Preferably, stop gear includes that the top is the stopper that the arc set up, the spacing groove with stopper looks adaptation is seted up to the interior bottom of mounting groove, many springs of interior bottom fixedly connected with of spacing groove, the top of spring and the bottom fixed connection of stopper, the spacing hole with the looks adaptation of stopper is seted up at the top of screw thread piece.

Preferably, the outer side walls of the air inlet joint, the air outlet joint and the observation port pipe plug are fixedly connected with rubber rings, and the three rubber rings are screwed into the air inlet, the air outlet and the observation port through threads respectively.

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

when using, through the case, the mounting panel, the threaded rod, the thread piece, the connecting rod, mutually support between stopper and the spring, it rotates to drive the threaded rod through rotating the twist grip, make the thread piece be linear motion along the direction of threaded rod, thereby it reciprocates to drive the installation piece, reciprocate the position of coming control valve core through reciprocating of installation piece, flow in the casing is controlled, the flow is calculated to the rotatory handle pivoted number of turns of accessible, reach the purpose of carrying out linear control to the flow, effectively improved the regulation precision, the position of thread piece has effectively been fixed through stop gear simultaneously, prevent to make the thread piece appear the reverse movement under non-artificial control under the impact of the inside flow of casing, further assurance flow control's accurate nature, the work of giving the staff has brought the facility.

Drawings

Fig. 1 is a schematic structural view of a choke type throttle valve according to the present invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

fig. 3 is a schematic view of an internal structure of a mounting plate in the choke type throttle valve according to the present invention;

fig. 4 is a schematic view of a connection structure between a thread block and a mounting plate in the choke type throttle valve of the present invention.

In the figure: the device comprises a shell 1, a valve seat 2, a valve core 3, an air inlet joint 4, an air outlet joint 5, a mounting plate 6, a mounting groove 7, a threaded rod 8, a threaded block 9, a connecting rod 10, a rotating handle 11, a limiting plate 12, a sliding block 13, a sliding groove 14, a limiting block 15, a limiting groove 16, a rubber ring 17, a spring 18, a limiting hole 19, an observation port pipe plug 20 and a mounting block 21.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Referring to fig. 1-4, the choke type throttle valve comprises a casing 1, a valve seat 2, a valve core 3, an air inlet joint 4 and an air outlet joint 5, wherein the valve seat 2 is arranged inside the casing 1, the valve core 3 is slidably connected with the inner side wall of the casing 1, the air inlet joint 4 and the air outlet joint 5 are respectively arranged inside an air inlet and an air outlet of the casing 1, the side wall of the casing 1 is provided with an observation port, the inside of the observation port is in threaded connection with an observation port pipe plug 20, the outer side walls of the air inlet joint 4, the air outlet joint 5 and the observation port pipe plug 20 are respectively and fixedly connected with rubber rings 17, the three rubber rings 17 are respectively screwed into the air inlet, wherein utilize rubber circle 17 can effectively guarantee the inside leakproofness of casing 1, the viewing aperture mainly used observes and overhauls, regularly clears up casing 1 inside simultaneously, guarantees the inside cleanness of casing 1.

Wherein, the top of the valve seat 2 is fixedly connected with a mounting plate 6, and the top of the valve seat 2 and the mounting plate 6 are both provided with through holes matched with the valve core 3; two upper surfaces of mounting panel 6 have been seted up and have been the symmetry and set up mounting groove 7, the inside wall of mounting groove 7 rotates and is connected with threaded rod 8, the one end that two threaded rods 8 kept away from each other all runs through mounting groove 7 and outwards extends, the one end fixedly connected with twist grip 11 of the outside extension of threaded rod 8, threaded rod 8's lateral wall screw thread has cup jointed threaded block 9, threaded block 9's lateral wall and mounting groove 7's inside wall sliding connection, threaded block 9's lateral wall fixedly connected with is the slider 13 of T type, the spout 14 with slider 13 looks adaptation is seted up to mounting groove 7's inside wall, slider 13 refers to 4 with mounting groove 7's connected mode, the slider 13 that utilizes to be the T type setting prevents that the threaded block 9 from appearing the pivoted.

Wherein, the top of the valve core 3 is fixedly connected with a limiting plate 12, the outer side wall of the valve core 3 is fixedly sleeved with an installation block 21, the outer side wall of the installation block 21 is rotatably connected with two connecting rods 10, the bottoms of the two connecting rods 10 are respectively rotatably connected with the outer side walls of two thread blocks 9, the inner bottom of the installation groove 7 is provided with a plurality of limiting mechanisms matched with the thread blocks 9, each limiting mechanism comprises a limiting block 15 with the top in arc shape, the inner bottom of the installation groove 7 is provided with a limiting groove 16 matched with the limiting block 15, the inner bottom of the limiting groove 16 is fixedly connected with a plurality of springs 18, the tops of the springs 18 are fixedly connected with the bottoms of the limiting blocks 15, the top of the thread blocks 9 is provided with limiting holes 19 matched with the limiting blocks 15, the directions, when the rotating handle 11 rotates in the same direction, the two thread blocks 9 can synchronously move towards the middle or towards the two sides.

In the utility model, when the flow in the shell 1 needs to be adjusted, the limiting block 15 is pressed down from the limiting hole 19 and the rotating handle 11 is rotated, the threaded rod 8 is driven to rotate when the rotating handle 11 rotates, so that the threaded block 9 moves, in the process of moving the two threaded blocks 9, the mounting block 21 is driven to move up and down through the connecting rod 10, in the process of moving the mounting block 21 downwards, the valve core 3 is driven to move towards the inside of the shell 1, so that the flow of the gas outlet on the shell 1 is reduced, in the process of moving the mounting block 21 upwards, the valve core 3 is driven to move towards the outside of the shell 1, so that the flow of the gas outlet on the shell 1 is increased;

it should be noted that, when the two rotating handles 11 rotate twice, the flow in the housing 1 is correspondingly increased or decreased by one cubic meter per minute, and at the same time, the adjacent limiting block 15 is limited in the corresponding limiting hole 19 under the action of the spring 18, so as to linearly adjust the flow in the housing 1, thereby controlling the flow precision more accurately, and meanwhile, the limiting block 15 limited in the limiting hole 19 is used for controlling the position of the thread block 9, thereby preventing the thread block 9 from moving reversely under the non-artificial control under the impact of the flow in the housing 1, and further ensuring the accuracy of the flow control.

Claims

1. The choke type throttle valve comprises a shell (1), a valve seat (2), a valve core (3), an air inlet joint (4) and an air outlet joint (5), wherein the valve seat (2) is arranged inside the shell (1), the valve core (3) is in sliding connection with the inner side wall of the shell (1), the air inlet joint (4) and the air outlet joint (5) are respectively arranged inside an air inlet and an air outlet of the shell (1), the side wall of the shell (1) is provided with an observation port, the inside of the observation port is in threaded connection with an observation port pipe plug (20), the choke valve is characterized in that the top of the valve seat (2) is fixedly connected with a mounting plate (6), and the tops of the valve seat (2) and the mounting plate (6) are respectively provided with a through hole matched with the valve core (3); the upper surface of mounting panel (6) has been seted up two and has been the symmetry and set up mounting groove (7), the inside wall of mounting groove (7) is rotated and is connected with threaded rod (8), two the one end that threaded rod (8) kept away from each other all runs through mounting groove (7) and outside extension, threaded block (9) have been cup jointed to the lateral wall screw thread of threaded rod (8), the lateral wall of threaded block (9) and the inside wall sliding connection of mounting groove (7), the lateral wall of case (3) is fixed to be cup jointed installation piece (21), the lateral wall of installation piece (21) is rotated and is connected with two connecting rods (10), two the bottom of connecting rod (10) rotates with the lateral wall of two threaded block (9) respectively and is connected, the interior bottom of mounting groove (7) is provided with a plurality of stop gear with threaded block (9) looks adaptation.

2. A throttle valve according to claim 1, characterized in that the threaded rod (8) is fixedly connected at its outwardly extending end with a rotary handle (11).

3. The choke throttle valve according to claim 2, characterized in that a stop plate (12) is fixedly connected to the top of the valve element (3).

4. The choke type throttle valve according to claim 3, characterized in that the outer side wall of the thread block (9) is fixedly connected with a T-shaped sliding block (13), and the inner side wall of the mounting groove (7) is provided with a sliding groove (14) matched with the sliding block (13).

5. The choke type throttle valve according to claim 4, characterized in that the limiting mechanism comprises a limiting block (15) with an arc-shaped top, a limiting groove (16) matched with the limiting block (15) is formed at the inner bottom of the mounting groove (7), a plurality of springs (18) are fixedly connected to the inner bottom of the limiting groove (16), the top of each spring (18) is fixedly connected with the bottom of the limiting block (15), and a limiting hole (19) matched with the limiting block (15) is formed at the top of the thread block (9).

6. The choke type throttle valve according to claim 5, characterized in that the outer side walls of the air inlet joint (4), the air outlet joint (5) and the observation port pipe plug (20) are fixedly connected with rubber rings (17), and the three rubber rings (17) are screwed into the air inlet, the air outlet and the observation port respectively through threads.