CN218883120U

CN218883120U - Sealing connecting device for throttle valve

Info

Publication number: CN218883120U
Application number: CN202223353798.7U
Authority: CN
Inventors: 吴泽明; 沈思羽; 沈义钦; 沈中波; 吴风军
Original assignee: Jiangsu Lichang Petroleum Machinery Co ltd
Current assignee: Jiangsu Lichang Petroleum Machinery Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-04-18
Anticipated expiration: 2032-12-14

Abstract

The utility model provides a sealing connection device for a throttle valve, which relates to the technical field of throttle valves and comprises a valve body, a valve cover and a valve seat, wherein the valve cover is arranged at the top of the valve body, the valve seat is arranged at the left side of the valve body, a valve core is slidably arranged in the valve body, a valve rod is inserted in the valve cover, and the valve seat is connected with a connecting pipe through a connecting mechanism; the utility model discloses an insert the inside of disk seat with the one end of connecting pipe, the connecting pipe is earlier that the tensioning piece among the extrusion coupling mechanism opens, and then the spring drives it and resets and press from both sides the outer wall of connecting pipe tightly, makes the inside sealing washer of tensioning piece warp the outer wall of laminating and connecting pipe, and the fixture block of fixed cover one end inserts in the inside draw-in groove of tensioning piece after that for the tensioning piece carries on spacingly to self through the fixture block of fixed cover, further promotion the sealed effect of connecting pipe and disk seat.

Description

Sealing connecting device for throttle valve

Technical Field

The utility model relates to a choke valve technical field especially relates to a sealing connection device for choke valve.

Background

The throttling valve is a valve for controlling the flow of fluid by changing the throttling cross section or the throttling length, the throttling valve and the one-way valve are connected in parallel to form the one-way throttling valve, the throttling valve and the one-way throttling valve are simple flow control valves, in a constant displacement pump hydraulic system, the throttling valve is matched with an overflow valve, three throttling speed regulating systems can be formed, namely an oil inlet path throttling speed regulating system, an oil return path throttling speed regulating system and a bypass throttling speed regulating system, the throttling valve has no flow negative feedback function, cannot compensate speed instability caused by load change, and is generally only used for occasions with little load change or low requirement on speed stability;

current choke valve is when connecting, mainly relies on the cladding to realize at the rubber circle of disk seat circumference, uses for a long time and can make frequent compression of rubber and ageing, only depends on the elasticity of rubber self not enough to make its and connecting tube laminating, and then the leakproofness that leads to the choke valve receives the influence, consequently, the utility model provides a sealing connection device for choke valve is used for solving above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

To the problem, the utility model provides a sealing connection device for choke valve has solved among the prior art because of the ageing not hard up poor problem of choke valve leakproofness that leads to of rubber circle.

For realizing the purpose of the utility model, the utility model discloses a following technical scheme realizes: a sealing connecting device for a throttling valve comprises a valve body, a valve cover and a valve seat, wherein the valve cover is arranged at the top of the valve body, the valve seat is arranged on the left side of the valve body, a valve core is slidably arranged in the valve body, a valve rod is inserted in the valve cover, and the interior of the valve seat is connected with a connecting pipe through a connecting mechanism;

coupling mechanism includes spring, tensioning piece, sealing washer and fixed cover, tensioning piece symmetry sets up the inside at the disk seat, the outside of tensioning piece is equipped with the spring, the one end of spring and the interior wall connection of disk seat, the inside of tensioning piece is equipped with the sealing washer, fixed cover is still installed to one side of disk seat.

The further improvement lies in that: fixed cover inserts the inside of disk seat from the left hand right side, the one end of fixed cover is equipped with the fixture block, one side of tensioning piece is equipped with the draw-in groove that matches with the fixture block, the fixture block all is equipped with the inclination with the inboard of draw-in groove.

The further improvement lies in that: the one end of fixed cover is equipped with the ring flange, the one end of connecting pipe is equipped with the recess that matches with the ring flange, the ring flange passes through the bolt and can dismantle with the one end of disk seat and be connected.

The further improvement lies in that: the top of the valve rod is provided with a rotating handle, the inside of the valve cover is provided with a thread sleeve matched with the valve rod, and the bottom end of the valve rod is rotatably connected with the top of the valve core through a bearing.

The further improvement is that: the inside of valve body is equipped with the filter screen, the filter screen comprises import filter screen and export filter screen, the import filter screen sets up in the inside top of valve body, the export filter screen sets up in the inside below of valve body.

The further improvement lies in that: the bottom of valve gap is equipped with the connecting block, the valve gap passes through the connecting block to be connected with the top block of valve body, the top symmetry of valve body is equipped with the threaded rod, the valve gap passes through the threaded rod and can dismantle with the valve gap and be connected.

The utility model has the advantages that: insert the inside of disk seat through the one end with the connecting pipe, the connecting pipe is the tensioning piece among the extrusion coupling mechanism earlier and opens, and then the spring drives it and resets and press from both sides the outer wall of connecting pipe tightly, makes the inside sealing washer of tensioning piece warp the laminating and the outer wall of connecting pipe, then the fixture block of fixed cover one end inserts in the inside draw-in groove of tensioning piece for the tensioning piece is spacing self through the fixture block of fixed cover, further promotion the sealed effect of connecting pipe with the disk seat.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a view showing the internal structure of the valve seat according to the present invention;

FIG. 3 is an enlarged view of a portion A of FIG. 2;

fig. 4 is a side view of the valve seat of the present invention.

Wherein: 1. a valve body; 2. a valve cover; 3. a valve seat; 4. a valve stem; 5. a valve core; 6. a connecting pipe; 7. a spring; 8. a tensioning block; 9. a seal ring; 10. fixing a sleeve; 11. a clamping block; 12. a card slot; 13. a handle is rotated; 14. a filter screen; 15. an inlet filter screen; 16. and (4) an outlet filter screen.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

As shown in fig. 1, 2, 3, and 4, the embodiment provides a sealing connection device for a throttle valve, which includes a valve body 1, a valve cover 2, and a valve seat 3, where the valve cover 2 is disposed at the top of the valve body 1, the valve seat 3 is disposed on the left side of the valve body 1, a valve core 5 is slidably mounted inside the valve body 1, a valve rod 4 is inserted inside the valve cover 2, a rotating handle 13 is disposed at the top of the valve rod 4, a thread sleeve matched with the valve rod 4 is disposed inside the valve cover 2, the bottom end of the valve rod 4 is rotatably connected to the top of the valve core 5 through a bearing, after the throttle valve is mounted at a designated position, the valve rod 4 is screwed through the rotating handle 13 to rotate, an external thread is disposed outside the valve rod 4, and the thread sleeves inside the valve cover 2 are mutually matched to enable the valve rod 4 to slide up and down in the valve cover 2, so that the valve rod 4 drives the valve core 5 to slide up and down inside the valve body 1, thereby controlling whether one end of the valve seat 3 is blocked and further controlling the flow rate of the throttle valve.

The inside of disk seat 3 is connected with connecting pipe 6 through coupling mechanism, coupling mechanism includes spring 7, tensioning piece 8, sealing washer 9 and fixed cover 10, the inside at disk seat 3 is set up to tensioning piece 8 symmetry, the outside of tensioning piece 8 is equipped with spring 7, the one end of spring 7 and the interior wall connection of disk seat 3, the inside of tensioning piece 8 is equipped with sealing washer 9, fixed cover 10 is still installed to one side of disk seat 3, at the in-process of installing connecting pipe 6 on disk seat 3, insert the inside of disk seat 3 with the one end of connecting pipe 6 earlier, the outer wall of connecting pipe 6 is two tensioning pieces 8 of extrusion earlier and opens each other, then resets because of the elasticity that spring 7 produced and makes tensioning piece 8 press from both sides the outer wall of connecting pipe 6 tightly, originally just be in compression state before being extruded again because of spring 7, so make tensioning piece 8 tighter with the outer wall laminating of connecting pipe 6 to the sealing washer 9 of the inside rubber material of extrusion tensioning piece 8 warp, make its laminating and the outer wall of connecting pipe 6, increase the leakproofness between connecting pipe 6 and disk seat 3.

Fixed cover 10 inserts the inside of disk seat 3 from the left hand right side, the one end of fixed cover 10 is equipped with fixture block 11, one side of tensioning piece 8 is equipped with draw-in groove 12 that matches with fixture block 11, fixture block 11 all is equipped with the inclination with the inboard of draw-in groove 12, the one end of fixed cover 10 is equipped with the ring flange, the one end of connecting pipe 6 is equipped with the recess that matches with the ring flange, the ring flange passes through the bolt and can dismantle with the one end of disk seat 3 and be connected, inserts the connecting pipe 6 into disk seat 3 after, inserts fixed cover 10 the inside of disk seat 3 after that, and the fixture block 11 of fixed cover 10 one end inserts in the inside draw-in groove 12 of tensioning piece 8, because of the inboard inclination of fixture block 11 and draw-in groove 12, is convenient for tensioning piece 8 is spacing self through fixture block 11 of fixed cover 10, and be convenient for be connected inseparabler between tensioning piece 8 and the connecting pipe 6, make the sealed effect between them better.

The inside of valve body 1 is equipped with filter screen 14, filter screen 14 comprises import filter screen 15 and export filter screen 16, import filter screen 15 sets up in the inside top of valve body 1, export filter screen 16 sets up in the inside below of valve body 1, when rivers pass through disk seat 3 and get into valve body 1, can pass through earlier from import filter screen 15, carries out primary filter to it, can pass through from export filter screen 16 when rivers are followed the outside discharge in bottom of valve body 1, carries out secondary filter to it, is convenient for promote the choke valve to the filterable effect of rivers, avoids pipe blockage.

The bottom of the valve cover 2 is provided with a connecting block, the valve cover 2 is connected with the top of the valve body 1 in a clamping mode through the connecting block, threaded rods are symmetrically arranged on the top of the valve body 1, the valve cover 2 is detachably connected with the valve cover 2 through the threaded rods, when the filter screen 14 is full of blockages, nuts on the threaded rods can be screwed to move the blockages out of the top of the valve cover 2, then the valve cover 2 is pulled to move upwards, the valve cover 2 together with the valve rod 4 and the valve core 5 is moved out of the valve body 1, the blockages in the filter screen 14 can be cleaned conveniently, and then the valve cover 2 together with the valve rod 4 and the valve core 5 is installed back to the top of the valve body 1.

This sealing connection device for choke valve, inside at disk seat 3 sets up coupling mechanism, coupling mechanism is by spring 7, tensioning piece 8, sealing washer 9 and fixed cover 10 are constituteed, insert the inside of disk seat 3 with the one end of connecting pipe 6, connecting pipe 6 is extrusion tensioning piece 8 earlier and opens, then spring 7 drives its outer wall that resets and tightly presss from both sides connecting pipe 6, this just is in compression state before being extruded again because of spring 7, the sealing washer 9 of 8 inside rubber materials of tensioning piece can extrude, make its laminating and the outer wall of connecting pipe 6, increase the leakproofness between connecting pipe 6 and the disk seat 3, fixture block 11 of fixed cover 10 one end inserts in the inside draw-in groove 12 of tensioning piece 8, make tensioning piece 8 carry on spacingly to self through fixture block 11 of fixed cover 10, further promotion the sealed effect of connecting pipe 6 with disk seat 3.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the present invention, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a sealing connection device for throttle valve, includes valve body (1), valve gap (2) and disk seat (3), its characterized in that: the valve comprises a valve body (1), a valve cover (2) and a valve seat (3), wherein the valve cover (2) is arranged at the top of the valve body (1), the valve seat (3) is arranged on the left side of the valve body (1), a valve core (5) is slidably arranged in the valve body (1), a valve rod (4) is inserted in the valve cover (2), and the valve seat (3) is connected with a connecting pipe (6) through a connecting mechanism;

coupling mechanism includes spring (7), tensioning piece (8), sealing washer (9) and fixed cover (10), tensioning piece (8) symmetry sets up the inside in disk seat (3), the outside of tensioning piece (8) is equipped with spring (7), the one end of spring (7) and the interior wall connection of disk seat (3), the inside of tensioning piece (8) is equipped with sealing washer (9), fixed cover (10) are still installed to one side of disk seat (3).

2. The sealing coupling device for a throttle valve according to claim 1, wherein: fixed cover (10) insert the inside of disk seat (3) from left right side, the one end of fixed cover (10) is equipped with fixture block (11), one side of tensioning piece (8) is equipped with draw-in groove (12) that match with fixture block (11), the inboard of fixture block (11) and draw-in groove (12) all is equipped with the inclination.

3. The sealing coupling device for a throttle valve according to claim 1, wherein: the one end of fixed cover (10) is equipped with the ring flange, the one end of connecting pipe (6) is equipped with the recess that matches with the ring flange, the ring flange passes through the bolt and can dismantle with the one end of disk seat (3) and be connected.

4. The sealing coupling device for a throttle valve according to claim 1, wherein: the top of the valve rod (4) is provided with a rotating handle (13), the inside of the valve cover (2) is provided with a thread sleeve matched with the valve rod (4), and the bottom end of the valve rod (4) is rotatably connected with the top of the valve core (5) through a bearing.

5. The sealing coupling device for a throttle valve according to claim 1, wherein: the inside of valve body (1) is equipped with filter screen (14), filter screen (14) are constituteed by import filter screen (15) and export filter screen (16), import filter screen (15) set up in the inside top of valve body (1), export filter screen (16) set up in the inside below of valve body (1).

6. The sealing coupling device for a throttle valve according to claim 1, wherein: the bottom of valve gap (2) is equipped with the connecting block, valve gap (2) are connected through the top block of connecting block with valve body (1), the top symmetry of valve body (1) is equipped with the threaded rod, valve gap (2) can be dismantled with valve gap (2) through the threaded rod and be connected.