CN213900037U

CN213900037U - Leakage-proof throttle valve for industrial valve

Info

Publication number: CN213900037U
Application number: CN202022187468.XU
Authority: CN
Inventors: 王雪峰; 冷新颜
Original assignee: Danyang Aite Valve Co ltd
Current assignee: Danyang Aite Valve Co ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-08-06
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses an industrial valve is with preventing leaking type choke valve, which comprises a valve body, the equal movable mounting in both ends of valve body is provided with the connecting tube, the upper end movable mounting of valve body has the case connecting rod, the top of case connecting rod is provided with the hand wheel, the equal movable mosaic of both ends surface of valve body has the swivelling joint piece, the bottom fixed mounting of swivelling joint piece has the connecting rod, the bottom outside of connecting rod is provided with the transmission scroll bar, peg graft in the inside of valve body wall body in the bottom of transmission scroll bar, the outer end outside of transmission scroll bar is provided with sealed end cap, bottom one side of transmission scroll bar is provided with drive turbine. The utility model discloses an install transmission scroll bar, drive turbine, adjusting block, removal sealed tube and drive screw and can seal the pipe connection department when the leakage appears in the pipe connection department, avoid the medium to continue to leak, guarantee the stability when pipeline internal pressure is stable and the medium is carried.

Description

Leakage-proof throttle valve for industrial valve

Technical Field

The utility model relates to a choke valve technical field specifically is an industrial valve is with preventing leaking type choke valve.

Background

With the rapid development of social economy, the throttle valve is a valve for controlling the flow of fluid by changing the throttle section or the throttle length, the throttle valve and the one-way valve are connected in parallel to form the one-way throttle valve, the throttle valve and the one-way throttle valve are simple flow control valves, in a constant displacement pump hydraulic system, the throttle valve is matched with an overflow valve to form three throttle speed control systems, namely an oil inlet throttle speed control system, an oil return throttle speed control system and a bypass throttle speed control system, the throttle valve has no flow negative feedback function, cannot compensate the speed instability caused by load change, and is generally only used in occasions with small load change or low requirement on speed stability.

However, when the existing throttle valve is used, leakage is easy to occur at the joint of the throttle valve and a pipeline, and the stability of a valve body and the safety of medium conveying are affected; therefore, the existing requirements are not met, and a leakage-proof throttling valve for an industrial valve is provided for the requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an industrial valve is with preventing leaking type choke valve to current choke valve that proposes among the above-mentioned background art is when using, and its junction with the pipeline is very easily appeared leaking, influences the stability of valve body and the safety scheduling problem when the medium is carried.

In order to achieve the above object, the utility model provides a following technical scheme: a leakage-proof throttle valve for an industrial valve comprises a valve body, wherein connecting pipelines are movably arranged at two ends of the valve body, a valve core connecting rod is movably arranged at the upper end of the valve body, a hand wheel is arranged above the valve core connecting rod, rotary connecting blocks are movably embedded on the outer surfaces of the two ends of the valve body, a connecting rod is fixedly arranged at the bottom end of each rotary connecting block, a transmission scroll rod is arranged on the outer side of the bottom end of each connecting rod, the bottom end of each transmission scroll rod is inserted into the inner wall of the valve body, a sealing plug is arranged on the outer side of the outer end of each transmission scroll rod, a transmission turbine is arranged on one side of the bottom end of each transmission scroll rod, a transmission screw rod is fixedly arranged in the middle of each transmission turbine in a penetrating manner, an adjusting slide block is movably arranged on the outer surface of each transmission screw rod, a sealing ring is arranged between each adjusting slide block and the transmission turbine, and a movable sealing pipe is fixedly arranged on the outer side of each adjusting slide block, and sealing rings are arranged on the outer sides of two ends of the movable sealing pipe.

Preferably, the outer sides of the two ends of the valve body and the outer side of the end part of the connecting pipeline are fixedly provided with connecting flanges, the surface of each connecting flange is provided with a fixing hole, and the connecting flanges are connected with the connecting flanges attached to each other through bolts.

Preferably, the upper end of the valve core connecting rod is completely attached to the bottom surface of the adjusting slider, and the hand wheel is fixed with the valve core connecting rod through a screw.

Preferably, ball bearings are arranged between the outer sides of the two ends of the transmission screw and the valve body, and the transmission screw is connected with the valve body through the ball bearings.

Preferably, the connecting rod is inserted in the outer side of the end part of the transmission scroll rod and is uniformly and fixedly provided with two positioning pieces, and the positioning pieces are in sliding connection with the transmission scroll rod.

Preferably, the bottom end of the adjusting slider is completely attached to the outer side of the movable sealing pipe, and the adjusting slider and the movable sealing pipe are integrally cast and molded.

Preferably, the inner side of the adjusting slide block and the outer surface of the transmission screw rod are both provided with threads with the same rotation direction, and the adjusting slide block is connected with the transmission screw rod through the threads.

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

1. the utility model inserts the end of the tool into the connecting groove on the surface of the rotary connecting block, then the rotary connecting block rotates, when the rotary connecting block rotates, the drive worm rotates synchronously by the rotation of the locating piece which drives the connecting rod and the end outside of the end inside the drive worm, at the moment, the drive worm drives the drive worm to rotate, so that the drive screw penetrating through the middle of the drive worm rotates, when the drive screw rotates, the adjusting slider moves along the surface of the adjusting slider by the thread friction between the drive screw and the adjusting slider, so that the adjusting slider drives the movable sealing pipe fixed with the adjusting slider to slide at the inner side of the end of the valve body, so that the other end of the movable sealing pipe is inserted at the inner side of the connecting pipeline, the joint of the valve body and the connecting pipeline is completely sealed and shielded, and the medium transmitted by the valve body and the connecting pipeline passes through the middle of the movable sealing pipe, the pipeline joint can be sealed and shielded when leakage occurs at the pipeline joint, so that the medium is prevented from continuously leaking, and the stable pressure in the pipeline and the stable medium conveying are ensured;

2. the utility model discloses a seal the junction of valve body and connecting tube at the removal sealed tube, shelter from the back, because the sealing washer in the removal sealed tube both ends outside can laminate valve body and connecting tube's inner wall, can be totally closed with the connecting gap that removes sealed tube and valve body and connecting tube, avoid the medium to continue to leak along the gap that removes sealed tube and valve body and connecting tube, the sealing ring in the transmission screw rod tip outside and the sealed end cap in the transmission vortex pole outside can avoid the medium to permeate to the external world along the connecting gap of transmission screw rod and transmission vortex pole simultaneously, the sealing performance and the stability of golden garment assurance device.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic view of a partial structure of the valve body of the present invention;

FIG. 3 is a schematic view of the structure of FIG. 2 according to the present invention;

fig. 4 is a schematic structural diagram of the sealing plug of the present invention.

In the figure: 1. a valve body; 2. connecting a pipeline; 3. a connecting flange; 4. moving the sealing tube; 5. a drive screw; 6. adjusting the sliding block; 7. a seal ring; 8. a seal ring; 9. a drive turbine; 10. a drive scroll bar; 11. sealing the plug; 12. a connecting rod; 13. rotating the connecting block; 14. positioning plates; 15. a spool connecting rod; 16. a handwheel.

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.

Referring to fig. 1 to 4, the present invention provides an embodiment: a leakage-proof throttle valve for an industrial valve comprises a valve body 1, wherein two ends of the valve body 1 are respectively and movably provided with a connecting pipeline 2, the upper end of the valve body 1 is movably provided with a valve core connecting rod 15, a hand wheel 16 is arranged above the valve core connecting rod 15, the outer surfaces of two ends of the valve body 1 are respectively and movably embedded with a rotary connecting block 13, the bottom end of the rotary connecting block 13 is fixedly provided with a connecting rod 12, the outer side of the bottom end of the connecting rod 12 is provided with a transmission scroll rod 10, the bottom end of the transmission scroll rod 10 is inserted into the wall body of the valve body 1, the outer side of the outer end of the transmission scroll rod 10 is provided with a sealing plug 11, one side of the bottom end of the transmission scroll rod 10 is provided with a transmission turbine 9, the middle of the transmission turbine 9 is fixedly provided with a transmission screw rod 5 in a penetrating way, the outer surface of the transmission screw rod 5 is movably provided with an adjusting slide block 6, the middle of the adjusting slide block 6 and the transmission turbine 9 is provided with a sealing ring 8, and the outer side of the adjusting slide block 6 is fixedly provided with a movable sealing pipe 4, and sealing rings 7 are arranged on the outer sides of two ends of the movable sealing pipe 4.

Further, the outer sides of the two ends of the valve body 1 and the outer side of the end part of the connecting pipeline 2 are fixedly provided with connecting flanges 3, the surfaces of the connecting flanges 3 are provided with fixing holes, and the connecting flanges 3 are connected with the connecting flanges 3 which are attached to each other through bolts.

Through adopting above-mentioned technical scheme, flange 3 makes things convenient for valve body 1 and connecting tube 2 to fix a position and the connection after the location is fixed, makes things convenient for the device to install or dismantle the maintenance.

Further, the upper end of the valve core connecting rod 15 is completely attached to the bottom surface of the adjusting slide block 6, and the hand wheel 16 is fixed with the valve core connecting rod 15 through a screw.

Through adopting above-mentioned technical scheme, screw fixed knot simple structure, convenient to use for adjusting slider 6 can be smooth when rotatory drive case connecting rod 15 rotatory, control valve open the back closure.

Further, ball bearings are arranged between the outer sides of the two ends of the transmission screw rod 5 and the valve body 1, and the transmission screw rod 5 is connected with the valve body 1 through the ball bearings.

Through adopting above-mentioned technical scheme, ball bearing simple structure, convenient to use keep apart drive screw 5 and valve body 1 and be convenient for drive screw 5 to rotate and the resistance that receives is little.

Furthermore, the connecting rod 12 is inserted and fixed with two positioning pieces 14 at the outer side of the end of the transmission scroll 10, and the positioning pieces 14 are connected with the transmission scroll 10 in a sliding manner.

Through adopting above-mentioned technical scheme, the spacer 14 makes things convenient for connecting rod 12 to carry out the location connection for rotary connecting piece 13 can be smooth when driving connecting rod 12 rotatory drive transmission scroll 10 and rotate.

Further, the bottom of adjusting the slider 6 is laminated with the outside of removing sealed tube 4 completely, and adjusting the slider 6 and removing sealed tube 4 through integrated casting shaping.

By adopting the technical scheme, the integrally cast and molded part has high integral strength, uniform stress distribution, excellent mechanical strength and no easy damage.

Furthermore, the inner side of the adjusting slide block 6 and the outer surface of the transmission screw rod 5 are both provided with threads with the same rotating direction, and the adjusting slide block 6 is connected with the transmission screw rod 5 through the threads.

By adopting the technical scheme, the transmission screw 5 can drive the adjusting slide block 6 to move along the surface of the transmission screw after being stressed and rotated by the threaded connection, so that the adjusting slide block 6 drives the movable sealing pipe 4 to move synchronously.

The working principle is as follows: when the valve body is used, when medium leakage occurs at the joint of the end part of the valve body 1 and the connecting pipeline 2, firstly, the end part of a tool is inserted into a connecting groove on the surface of a rotary connecting block 13, then the rotary connecting block 13 rotates, when the rotary connecting block 13 rotates, the transmission worm 10 synchronously rotates by driving a connecting rod 12 and a positioning sheet 14 of the connecting rod 12 inserted outside the end part inside the transmission worm 10 to rotate, at the moment, the transmission worm 10 drives a transmission turbine 9 to rotate so that a transmission screw 5 penetrating through the transmission turbine 9 rotates, when the transmission screw 5 rotates, the adjusting slide 6 moves along the surface of the adjusting slide through thread friction between the transmission screw 5 and the adjusting slide 6, so that the adjusting slide 6 drives the movable sealing pipe 4 fixed with the adjusting slide to slide on the inner side of the end part of the valve body 1, and the other end of the movable sealing pipe 4 is inserted inside the connecting pipeline 2, the connecting part of the valve body 1 and the connecting pipeline 2 is completely sealed and shielded, so that a medium transmitted by the valve body 1 and the connecting pipeline 2 passes through the middle of the movable sealing pipe 4, the connecting part of the pipeline can be sealed and shielded when the connecting part of the pipeline leaks, the medium is prevented from continuously leaking, and the stability of the internal pressure of the pipeline and the stability of the medium during conveying are ensured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an industrial valve is with preventing leaking type choke valve, includes valve body (1), its characterized in that: the valve is characterized in that connecting pipelines (2) are movably arranged at two ends of the valve body (1), a valve core connecting rod (15) is movably arranged at the upper end of the valve body (1), hand wheels (16) are arranged above the valve core connecting rod (15), rotary connecting blocks (13) are movably embedded in the outer surfaces of the two ends of the valve body (1), a connecting rod (12) is fixedly arranged at the bottom end of each rotary connecting block (13), a transmission worm (10) is arranged on the outer side of the bottom end of each connecting rod (12), the bottom end of each transmission worm (10) is inserted into the wall body of the valve body (1), a sealing plug (11) is arranged on the outer side of the outer end of each transmission worm (10), a transmission turbine (9) is arranged on one side of the bottom end of each transmission worm (10), a transmission screw (5) penetrates through the middle of each transmission turbine (9) and is fixedly arranged, and an adjusting slider (6) is movably arranged on the outer surface of each transmission screw (5), the middle of adjusting the slider (6) and drive turbine (9) is provided with sealing ring (8), the outside fixed mounting of adjusting the slider (6) has removal sealing tube (4), the both ends outside of removing sealing tube (4) all is provided with sealing washer (7).

2. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the valve is characterized in that connecting flanges (3) are fixedly mounted on the outer sides of the two ends of the valve body (1) and the outer sides of the ends of the connecting pipelines (2), fixing holes are formed in the surfaces of the connecting flanges (3), and the connecting flanges (3) are connected with the connecting flanges (3) which are attached to each other through bolts.

3. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the upper end of the valve core connecting rod (15) is completely attached to the bottom surface of the adjusting slide block (6), and the hand wheel (16) is fixed with the valve core connecting rod (15) through a screw.

4. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the ball bearings are arranged on the outer sides of the two ends of the transmission screw rod (5) and in the middle of the valve body (1), and the transmission screw rod (5) is connected with the valve body (1) through the ball bearings.

5. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the connecting rod (12) is inserted and connected with the outer side of the end part of the transmission worm (10) and is evenly and fixedly provided with two positioning pieces (14), and the positioning pieces (14) are in sliding connection with the transmission worm (10).

6. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the bottom of adjusting slider (6) is laminated with the outside of removing sealed tube (4) completely, adjusting slider (6) and removing sealed tube (4) through integration casting forming.

7. A leakage prevention type throttle valve for industrial valves according to claim 1, wherein: the inner side of the adjusting sliding block (6) and the outer surface of the transmission screw rod (5) are provided with threads with the same rotating directions, and the adjusting sliding block (6) is connected with the transmission screw rod (5) through threads.