CN217539631U

CN217539631U - Novel corrugated pipe stop valve

Info

Publication number: CN217539631U
Application number: CN202221424645.4U
Authority: CN
Inventors: 姜振光; 荣杰; 向小平
Original assignee: Hangda Valve Group Co ltd
Current assignee: Hangda Valve Group Co ltd
Priority date: 2022-06-02
Filing date: 2022-06-02
Publication date: 2022-10-04
Anticipated expiration: 2032-06-02

Abstract

The utility model relates to a bellows stop valve technical field especially relates to a novel bellows stop valve, and it includes valve body, valve gap, bolt, valve rod, drive change handle and bellows. The valve cavity is arranged in the valve body, the valve flap seat is arranged in the valve cavity, the chute is arranged at the opening of the upper end of the valve flap seat, and the elastic sealing ring is arranged in the chute. The input end of the valve body is provided with a feed pipe, a ball valve seat is arranged in the feed pipe, a ball valve is arranged in the ball valve seat in a rotating mode, and a ball valve rod is connected with the ball valve in a driving mode. The valve cover is connected with the valve body, a through hole is arranged in the valve cover, and a sealing plug which is connected with the through hole in a sealing mode is arranged on the inner side of the lower end of the through hole. The valve rod is inserted in the valve body, the valve rod is in threaded connection with the valve cover, the valve clack is arranged at the bottom of the valve rod in a rotating mode, and the driving rotating handle is detachably connected with the top end of the valve rod. The bellows sets up in the valve body, and the bellows cover is established in the outside of valve rod, and the bottom and the valve clack of bellows are connected, and the top and the valve gap of bellows rotate to be connected. The utility model discloses sealing performance is good, and maintains and changes the convenience.

Description

Novel corrugated pipe stop valve

Technical Field

The utility model relates to a bellows stop valve and technical field especially relate to a novel bellows stop valve.

Background

The bellows stop valve belongs to a forced sealing type valve, and when the valve is closed, pressure must be applied to a valve clack so as to prevent a sealing surface from leaking. When the medium enters the valve from the lower part of the valve clack, the resistance to be overcome by the operating force is the friction force between the valve rod and the packing and the thrust generated by the pressure of the medium, the force for closing the valve is larger than the force for opening the valve, so the diameter of the valve rod is larger, otherwise the failure of the valve rod bending can occur.

The Chinese patent with the granted publication number of CN212536709U discloses a novel corrugated pipe stop valve which mainly comprises a valve body, a valve rod and a valve clack. According to the content described in the patent and the attached drawings of the patent, the connecting rod is arranged between the valve rod linkage and the valve rod of the stop valve, so that the valve rod is more convenient to replace.

However, the shut-off valve still has obvious disadvantages: when valve rod or valve clack damage, need in time change, but the input of this valve lacks the structure that cuts off intraductal material circulation temporarily, need earlier close the main valve during the change, opens the main valve again after the change is accomplished, under the intensive circumstances of branch road pipeline, in case cut off the main valve, will make whole production process all pause. Meanwhile, the stop valve is poor in air tightness, and the valve rod is very easy to bend or damage under the action of external force.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the purpose is to the problem that exists among the background art, provides a novel bellows stop valve.

The technical scheme of the utility model: a novel corrugated pipe stop valve comprises a valve body, a valve cover, a bolt, a valve rod, a driving rotating handle and a corrugated pipe. The valve cavity is arranged in the valve body, the valve clack seat is arranged in the valve cavity, the upper end opening of the valve clack seat is provided with a chute, and an elastic sealing ring is arranged in the chute. The input of valve body sets up rather than the inlet pipe of inside intercommunication, sets up the ball valve seat in the inlet pipe, and the ball valve seat internal rotation sets up the ball valve. The feeding pipe is rotatably provided with a ball valve rod, the ball valve rod is rotatably connected with a ball valve seat, and the ball valve rod is connected with a ball valve in a driving way. The valve cover is connected with the valve body through a bolt, a through hole is formed in the valve cover, and a sealing plug which is connected with the through hole in a sealing mode is arranged on the inner side of the lower end of the through hole. The valve rod runs through the valve gap and inserts in the valve body, and valve rod and valve gap threaded connection, valve rod and sealed end cap rotate to be connected, and the bottom of valve rod is rotated and is set up the valve clack, and the sealed cooperation of hole of valve clack and valve clack seat, the drive is changeed and can be dismantled the top with the valve rod and be connected. The bellows sets up in the valve body, and the bellows cover is established in the outside of valve rod, and the bottom and the valve clack of bellows are connected, and the top and the valve gap of bellows rotate to be connected.

Preferably, all set up flange on the output of valve body and the input terminal surface of inlet pipe.

Preferably, the ball valve rod is provided with an inner hexagonal cylindrical groove with an upward opening.

Preferably, the bottom of the valve rod is provided with an adapter, a switching groove is formed in the valve clack, and the adapter is inserted into the switching groove and is in threaded fit with the switching groove.

Preferably, the valve cover is provided with a telescopic pipe, the telescopic pipe is arranged outside the valve rod in a covering mode, the top end of an inner side movable pipe of the telescopic pipe is connected with the lower surface of the driving rotating handle, and the inner side movable pipe of the telescopic pipe is rotatably connected with the outer fixing pipe.

Preferably, the top end of the corrugated pipe is provided with a swivel, the lower end of the valve cover is provided with an annular groove with a downward opening, the swivel is inserted into the annular groove and is connected with the annular groove in a rotating mode, and the outer wall of the swivel is in sealing fit with the outer wall of the annular groove.

Preferably, the driving handle is detachably connected with the valve rod.

Preferably, a plurality of anti-slip teeth are arranged on the outer edge of the driving rotating handle.

Compared with the prior art, the utility model discloses following profitable technological effect has:

by arranging the ball valve in the feed pipe, once a valve flap in the valve body is damaged or a valve rod is damaged, the ball valve is used for temporarily cutting off the material circulation of the branch pipe, a main valve does not need to be cut off, and other branch pipes cannot be influenced; the elastic sealing ring is arranged in the valve clack seat, and when the valve clack is pressed down, the elastic sealing ring is extruded and deformed, so that a gap between the defective part of the valve clack and the valve clack seat is effectively filled; the sealing plug is arranged in the valve cover, and the through hole of the valve cover is sealed by the sealing plug, so that materials in the pipeline are prevented from leaking out of the through hole of the valve cover; set up flexible pipe through the outside at the valve rod, utilize flexible pipe to protect the valve rod of its inboard, prevent that the valve rod from suffering external shock and bending, simultaneously the utility model discloses overall structure stability is high, and it is convenient to dismantle and change inner structure, and is very practical, is fit for promoting.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

fig. 3 is a connection structure diagram of the valve rod and the valve clack in fig. 1.

Reference numerals: 1. a valve body; 2. a valve cavity; 3. a valve flap seat; 4. an elastic sealing ring; 5. a feeding pipe; 6. a connecting flange; 7. a ball valve seat; 8. a ball valve; 9. a ball valve stem; 10. a valve cover; 11. a bolt; 12. sealing the plug; 13. a valve stem; 14. an adapter; 15. a valve flap; 16. driving the rotating handle; 17. a bellows; 18. rotating the ring; 19. a telescopic tube.

Detailed Description

Example one

As shown in fig. 1-3, the utility model provides a novel bellows stop valve, including valve body 1, valve gap 10, bolt 11, valve rod 13, drive change 16 and bellows 17. Set up valve pocket 2 in the valve body 1, set up valve clack seat 3 in the valve pocket 2, the opening part of 3 upper ends of valve clack seat sets up the chute, sets up elastic sealing ring 4 in the chute. The input of valve body 1 sets up rather than the inlet pipe 5 of inside intercommunication, sets up ball valve seat 7 in the inlet pipe 5, and ball valve seat 7 internal rotation sets up ball valve 8. The feeding pipe 5 is rotatably provided with a ball valve rod 9, the ball valve rod 9 is rotatably connected with a ball valve seat 7, and the ball valve rod 9 is connected with a ball valve 8 in a driving way. The valve cover 10 is connected with the valve body 1 through a bolt 11, a through hole is arranged in the valve cover 10, and a sealing plug 12 which is connected with the through hole in a sealing mode is arranged on the inner side of the lower end of the through hole. The valve rod 13 runs through the valve cover 10 and is inserted into the valve body 1, the valve rod 13 is in threaded connection with the valve cover 10, the valve rod 13 is rotatably connected with the sealing plug, the bottom of the valve rod 13 is rotatably provided with the valve clack 15, the valve clack 15 is in sealing fit with an inner hole of the valve clack seat 3, and the driving rotating handle 16 is detachably connected with the top end of the valve rod 13. The corrugated pipe 17 is arranged in the valve body 1, the corrugated pipe 17 is sleeved outside the valve rod 13, the bottom of the corrugated pipe 17 is connected with the valve clack 15, and the top end of the corrugated pipe 17 is rotatably connected with the valve cover 10.

In this embodiment, the inlet pipe 5 is connected to the output end of the branch pipe, the output end of the valve body 1 is connected to the external connection pipe, when the material conduction between the branch pipe and the external connection pipe needs to be cut off, the driving handle 16 is rotated, the driving handle 16 rotates and enables the valve rod 13 to gradually extend into the valve body 1, the bottom of the valve rod 13 pushes the valve flap 15 to slide down until the valve flap 15 is clamped into the valve flap seat 3, the valve flap 15 extrudes the elastic sealing ring 4, the elastic sealing ring 4 deforms in a self-adaptive manner and fills the gap between the defective part of the valve flap 15 and the valve flap seat 4, thereby effectively preventing the situation of the leakage of the stop valve caused by the defective part of the valve flap 15, when the valve rod 13 or the valve flap 15 is seriously damaged, the valve flap 15 or the valve rod 13 needs to be replaced, a worker rotates the ball valve rod 9 with the help of a tool, the ball rod 9 rotates to enable the through hole of the ball valve 8 to be in sealing fit with the inner wall of the ball valve seat 7, at this time, the ball valve 8 temporarily seals the inlet pipe, but according to the known situation, the impact resistance of the ball valve 8 is obviously insufficient to be compared with the stop valve, the device, the effect of temporarily cutting off the material flowing in the pipeline is only, in order to prevent the material from being replaced in the follow-up process of the material, the leakage in the short time of the pipeline. The staff unpacks apart valve gap 10, takes out valve rod 13 and valve clack 15's whole, after changing new valve rod 13 or valve clack 15 as required, installs valve gap 11 again, utilizes the instrument to rotate ball valve rod 9 to ball valve 8 after the installation to lead to again, and the work is intervene to the stop valve this moment.

Example two

As shown in fig. 1 and 2, the utility model provides a novel bellows stop valve compares in embodiment one, sets up flexible pipe 19 on the valve gap 10, and flexible pipe 19 cladding sets up in the outside of valve rod 13, and the inboard movable tube top of flexible pipe 19 is connected with the lower surface that the handle 16 was changeed in the drive, and the inboard movable tube of flexible pipe 19 rotates with the fixed pipe in outside to be connected.

In this embodiment, since the valve rod 13 has poor impact resistance, the extension tube 19 is added outside the valve rod 13, the end of the valve rod 13 exposed out of the valve cap 10 is protected by the extension tube 19, and the rotating and sliding connection relationship between the inner tube and the outer tube of the extension tube 19 does not hinder and interfere with the ascending or descending of the valve rod 13.

EXAMPLE III

As shown in the drawing, the utility model provides a novel bellows stop valve compares in embodiment one, and the bottom of valve rod 13 sets up adapter 14, sets up the switching groove in the valve clack 15, and adapter 14 inserts the switching inslot and rather than screw-thread fit.

In this embodiment, the adapter 14 is connected with the valve clack 15, conveniently disassembles the valve clack 15 under the great or marginal defective condition in 15 side wear degree of valve clack to follow-up change and maintenance work for the staff provide convenience.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A novel corrugated pipe stop valve is characterized by comprising a valve body (1), a valve cover (10), a bolt (11), a valve rod (13), a driving rotating handle (16) and a corrugated pipe (17);

a valve cavity (2) is arranged in the valve body (1), a valve flap seat (3) is arranged in the valve cavity (2), an opening at the upper end of the valve flap seat (3) is provided with a chute, and an elastic sealing ring (4) is arranged in the chute; the input end of the valve body (1) is provided with a feeding pipe (5) communicated with the interior of the valve body, a ball valve seat (7) is arranged in the feeding pipe (5), and a ball valve (8) is rotatably arranged in the ball valve seat (7); a ball valve rod (9) is rotatably arranged on the feeding pipe (5), the ball valve rod (9) is rotatably connected with a ball valve seat (7), and the ball valve rod (9) is connected with a ball valve (8) in a driving way;

the valve cover (10) is connected with the valve body (1) through a bolt (11), a through hole is formed in the valve cover (10), and a sealing plug (12) which is connected with the through hole in a sealing mode is arranged on the inner side of the lower end of the through hole; the valve rod (13) penetrates through the valve cover (10) and is inserted into the valve body (1), the valve rod (13) is in threaded connection with the valve cover (10), the valve rod (13) is in rotary connection with the sealing plug, the bottom of the valve rod (13) is rotatably provided with a valve clack (15), the valve clack (15) is in sealing fit with an inner hole of the valve clack seat (3), and the driving rotating handle (16) is detachably connected with the top end of the valve rod (13); the corrugated pipe (17) is arranged in the valve body (1), the corrugated pipe (17) is sleeved outside the valve rod (13), the bottom of the corrugated pipe (17) is connected with the valve clack (15), and the top end of the corrugated pipe (17) is rotatably connected with the valve cover (10).

2. A novel corrugated pipe stop valve according to claim 1, characterized in that the connecting flanges (6) are arranged on the output end of the valve body (1) and the input end face of the feeding pipe (5).

3. A novel bellows stop valve according to claim 1, characterized in that the ball valve rod (9) has an internal hexagonal cylindrical groove opening upward.

4. A novel bellows stop valve according to claim 1, characterized in that the bottom of the valve stem (13) is provided with an adapter (14), and the flap (15) is provided with an adapter groove, into which the adapter (14) is inserted and screw-fitted.

5. A novel corrugated pipe stop valve as claimed in claim 1, characterized in that a telescopic pipe (19) is arranged on the valve cover (10), the telescopic pipe (19) is arranged outside the valve rod (13) in a covering manner, the top end of an inner movable pipe of the telescopic pipe (19) is connected with the lower surface of the driving rotating handle (16), and the inner movable pipe of the telescopic pipe (19) is rotatably connected with an outer fixed pipe.

6. A novel corrugated pipe stop valve according to claim 1, characterized in that a rotary ring (18) is arranged at the top end of the corrugated pipe (17), an annular groove with a downward opening is arranged at the lower end of the valve cover (10), the rotary ring (18) is inserted into the annular groove and is rotatably connected with the annular groove, and the outer wall of the rotary ring (18) is in sealing fit with the outer wall of the annular groove.

7. A novel bellows stop valve according to claim 1, characterized in that the actuating handle (16) is removably connected to the valve stem (13).

8. A novel bellows shut-off valve as claimed in claim 1 wherein the outer edge of the actuating knob (16) is provided with anti-slip teeth.