CN113531128A

CN113531128A - Stop valve with valve rod protection structure

Info

Publication number: CN113531128A
Application number: CN202110832226.8A
Authority: CN
Inventors: 孙海东
Original assignee: Wuxi Nutuoke Fluid Intelligent Control Instrument Co ltd
Current assignee: Wuxi Nutuoke Fluid Intelligent Control Instrument Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-10-22

Abstract

The invention discloses a stop valve with a valve rod protection structure, which comprises a valve body, wherein a valve core mechanism is arranged at the upper end of the valve body, a reinforcing mechanism is arranged at the upper end of the valve core mechanism, a protection mechanism is arranged inside the reinforcing mechanism, and a cleaning mechanism is arranged at the lower end of the reinforcing mechanism. The rotary ring is driven to move downwards through the threaded valve rod, the reinforcing rod is driven to move downwards when the rotary ring moves downwards, the reinforcing rod is inserted into the inserting hole, the moving track of the reinforcing rod is limited, when external impact impacts the threaded valve rod, impact is firstly applied to the reinforcing rod, the threaded valve rod is prevented from being deformed by external impact through the reinforcing rod, and the valve body is prevented from being damaged.

Description

Stop valve with valve rod protection structure

Technical Field

The invention relates to a stop valve, in particular to a stop valve with a valve rod protection structure, and belongs to the technical field of stop valves.

Background

The stop valve is also called stop valve, belonging to forced sealing type valve, so when the valve is closed, it must apply pressure to valve clack to force sealing surface not to leak, when the medium is fed into the valve from below the valve clack, the resistance force which must be overcome by operation force is the friction force of valve stem and packing material and the thrust force produced by pressure of medium, the force for closing the valve is greater than the force for opening the valve, so the diameter of valve stem is greater, otherwise the failure of stem top bending can occur.

When current stop valve is using, the screw thread on valve rod surface with the screw thread phase-match of valve body upper end, and then prevent rivers from flowing from 1 inside of valve body, but when the valve rod received external shock, the screw thread on valve rod and the valve body can receive the damage, and then can lead to the unable sealed emergence of valve body to reveal, and the rivers continuously flow in the inside case of current valve body, and then probably lead to the impurity glue of aquatic to lead to the production of incrustation scale in the case, and then lead to the fact the influence to the sealed of case.

Disclosure of Invention

The invention provides a stop valve with a valve rod protection structure, which effectively solves the problems that when the stop valve in the prior art is used, threads on the surface of a valve rod are matched with threads on the upper end of a valve body, so that water flow is prevented from flowing out of the interior of the valve body 1, but when the valve rod is impacted externally, the threads on the valve rod and the valve body can be damaged, so that the valve body cannot be sealed and leakage can occur, and water flow in a valve core in the prior valve body continuously flows, so that impurities in water can be adhered in the valve core, so that scale can be generated, and further, the sealing of the valve core is influenced.

In order to solve the technical problems, the invention provides the following technical scheme:

the invention discloses a stop valve with a valve rod protection structure, which comprises a valve body, wherein a valve core mechanism is arranged at the upper end of the valve body, a reinforcing mechanism is arranged at the upper end of the valve core mechanism, the protection mechanism is arranged inside the reinforcing mechanism, and a cleaning mechanism is arranged at the lower end of the reinforcing mechanism.

As a preferred technical scheme, the valve core mechanism comprises a water inlet pipe, the water inlet pipe is fixedly communicated with the outer wall of one end of the valve body, the outer wall of the other end of the valve body is fixedly communicated with a water outlet pipe, a partition plate is fixedly connected inside the valve body, a valve seat is fixedly sleeved at the center of the partition plate, a through hole is formed in the center of the valve seat, a sealing groove is formed in the inner wall of the upper end of the through hole, and a valve clack is clamped inside the sealing groove.

According to a preferred technical scheme, the reinforcing mechanism comprises a fixing block, the fixing block is fixedly sleeved on the outer wall of the upper end of the valve body, a threaded hole is formed in the center of the fixing block, a threaded valve rod is connected to the inner portion of the threaded hole in a threaded mode, a rotating rod is fixedly connected to the upper end of the threaded valve rod, a rotating ring is rotatably connected to the upper end surface of the threaded valve rod through a bearing, a plurality of reinforcing rods are fixedly connected to the lower surface of the rotating ring, the reinforcing rods are inserted into the inserting holes, the inserting holes are formed in the surface of the fixing block, and the lower ends of the reinforcing rods are inserted into the same annular rotating groove.

As a preferred technical scheme of the present invention, the protection mechanism includes a plurality of fixing rings, the plurality of fixing rings are fixedly sleeved on the surfaces of the plurality of reinforcing rods, the upper surfaces of the plurality of fixing rings are all fixedly connected with springs, the upper ends of the springs are all fixedly connected with sealing rings, the plurality of sealing rings are clamped inside the plurality of annular clamping grooves, the plurality of annular clamping grooves are respectively formed on the surfaces of the plurality of reinforcing rods, the upper surfaces of the plurality of sealing rings are attached to the upper surface of the same fixing block, the upper end of the fixing block is fixedly connected with a folding rubber sleeve, and the upper end of the folding rubber sleeve is fixedly connected to the lower surface of the rotating ring.

As a preferred technical scheme, the cleaning mechanism comprises a push rod, the push rod is fixedly connected to the side wall of one side of a reinforcing rod, the other end of the push rod is fixedly connected with an L-shaped rod, the L-shaped rod is movably sleeved inside a sealing cylinder, the sealing cylinder is fixedly communicated on the surface of a partition plate, the other end of the L-shaped rod is fixedly connected with a connecting rod, the other end of the connecting rod is fixedly connected with a plurality of fixing rods, the other ends of the fixing rods are fixedly connected to the inner wall of the same cleaning ring, and an annular brush is fixedly sleeved on the outer wall of the cleaning ring.

As a preferable technical scheme of the invention, the length of the connecting rod is the same as the depth of the through hole.

As a preferable technical solution of the present invention, the annular brush corresponds to the through hole, and an outer diameter of the annular brush is larger than an inner wall diameter of the through hole.

The invention has the following beneficial effects:

(1) the rotary ring is driven to move downwards through the threaded valve rod, the reinforcing rod is driven to move downwards when the rotary ring moves downwards, the reinforcing rod is inserted into the inserting hole, the moving track of the reinforcing rod is limited, when external impact impacts the threaded valve rod, impact is firstly applied to the reinforcing rod, the threaded valve rod is prevented from being deformed by external impact through the reinforcing rod, and the valve body is prevented from being damaged.

(2) The push rod is driven to move when the reinforcing rod moves, the push rod drives the L-shaped rod to move, the L-shaped rod drives the connecting rod to move, the connecting rod drives the fixing rod to move, the fixing rod drives the cleaning ring to move, the cleaning ring drives the annular brush to move, and then the annular brush reciprocates on the inner wall of the through hole, so that the through hole is scrubbed, and the valve clack cannot be tightly attached to the sealing groove due to the fact that scale is generated inside the through hole.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

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

FIG. 2 is an enlarged view of portion A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of portion B of FIG. 1 in accordance with the present invention;

FIG. 4 is a schematic view of the sealing mechanism of the present invention;

figure 5 is a schematic view of a cleaning ring configuration of the present invention.

In the figure: 1. a valve body; 2. a valve core mechanism; 21. a water inlet pipe; 22. a water outlet pipe; 23. a partition plate; 24. a valve seat; 25. a through hole; 26. a sealing groove; 27. a valve flap; 3. a reinforcement mechanism; 31. a fixed block; 32. a threaded hole; 33. a threaded valve stem; 34. rotating the rod; 35. a bearing; 36. rotating the ring; 37. a reinforcing rod; 38. inserting holes; 39. an annular rotary groove; 4. a protection mechanism; 41. a fixing ring; 42. a spring; 43. a seal ring; 44. an annular neck; 45. folding the rubber sleeve; 5. a cleaning mechanism; 51. a push rod; 52. an L-shaped rod; 53. a sealing cylinder; 54. a connecting rod; 55. fixing the rod; 56. cleaning a ring; 57. an annular brush.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1-5, the stop valve with a valve rod protection structure of the present invention comprises a valve body 1, a valve core mechanism 2 is arranged at the upper end of the valve body 1, a reinforcing mechanism 3 is arranged at the upper end of the valve core mechanism 2, a protection mechanism 4 is arranged inside the reinforcing mechanism 3, and a cleaning mechanism 5 is arranged at the lower end of the reinforcing mechanism 3.

As a preferred technical scheme of the invention, the valve core mechanism 2 comprises a water inlet pipe 21, the water inlet pipe 21 is fixedly communicated with the outer wall of one end of the valve body 1, the outer wall of the other end of the valve body 1 is fixedly communicated with a water outlet pipe 22, a partition plate 23 is fixedly connected inside the valve body 1, a valve seat 24 is fixedly sleeved at the center of the partition plate 23, a through hole 25 is formed at the center of the valve seat 24, a sealing groove 26 is formed in the inner wall of the upper end of the through hole 25, and a valve flap 27 is clamped inside the sealing groove 26.

As a preferred technical scheme of the invention, the reinforcing mechanism 3 comprises a fixed block 31, the fixed block 31 is fixedly sleeved on the outer wall of the upper end of the valve body 1, a threaded hole 32 is formed in the center of the fixed block 31, a threaded valve rod 33 is connected to the inner thread of the threaded hole 32, a rotating rod 34 is fixedly connected to the upper end of the threaded valve rod 33, a rotating ring 36 is rotatably connected to the upper end surface of the threaded valve rod 33 through a bearing 35, a plurality of reinforcing rods 37 are fixedly connected to the lower surface of the rotating ring 36, the plurality of reinforcing rods 37 are inserted into a plurality of inserting holes 38, a plurality of inserting holes 38 are formed in the surface of the fixed block 31, the lower ends of the plurality of reinforcing rods 37 are inserted into the same annular rotating groove 39, the rotating rod 34 is rotated to drive the threaded valve rod 33 to rotate, the threads on the surface extrude the threads on the inner wall of the threaded hole 32 when the threaded valve rod 33 rotates, so that the threaded valve rod 33 rotates downwards, the valve clack 27 is driven to move downwards when the threaded valve rod 33 rotates to move downwards, the valve clack 27 is connected inside the sealing groove 26 in a clamped mode, the bearing 35 drives the rotary ring 36 to move downwards when the threaded valve rod 33 moves downwards, the reinforcing rod 37 is driven to move downwards when the rotary ring 36 moves downwards, the reinforcing rod 37 is connected into the connecting hole 38 in a connected mode, the moving track of the reinforcing rod 37 is limited, when external impact impacts the threaded valve rod 33, impact is firstly exerted on the reinforcing rod 37, the threaded valve rod 33 is prevented from being deformed by external force impact through the reinforcing rod 37, and the valve body 1 is prevented from being damaged.

As a preferred technical scheme of the invention, the protection mechanism 4 comprises a plurality of fixing rings 41, the plurality of fixing rings 41 are fixedly sleeved on the surfaces of the plurality of reinforcing rods 37, springs 42 are fixedly connected on the upper surfaces of the plurality of fixing rings 41, sealing rings 43 are fixedly connected at the upper ends of the springs 42, the plurality of sealing rings 43 are clamped inside a plurality of annular clamping grooves 44, the plurality of annular clamping grooves 44 are respectively arranged on the surfaces of the plurality of reinforcing rods 37, the upper surfaces of the plurality of sealing rings 43 are attached to the upper surface of the same fixing block 31, a folding rubber sleeve 45 is fixedly connected at the upper end of the fixing block 31, the upper end of the folding rubber sleeve 45 is fixedly connected on the lower surface of the rotating ring 36, when the reinforcing rods 37 move, the springs 42 push the sealing rings 43 to be attached to the lower surface of the fixing block 31, thereby preventing the plugging holes 38 from leaking, and simultaneously protecting the threaded valve rods 33 through the folding rubber sleeve 45, foreign matters such as dust are prevented from entering the interior of the threaded hole 32 to affect the rotation of the threaded valve rod 33.

As a preferred technical scheme of the invention, the cleaning mechanism 5 comprises a push rod 51, the push rod 51 is fixedly connected on one side wall of a reinforcing rod 37, the other end of the push rod 51 is fixedly connected with an L-shaped rod 52, the L-shaped rod 52 is movably sleeved inside a sealing cylinder 53, the sealing cylinder 53 is fixedly communicated on the surface of the partition plate 23, the other end of the L-shaped rod 52 is fixedly connected with a connecting rod 54, the other end of the connecting rod 54 is fixedly connected with a plurality of fixing rods 55, the other ends of the fixing rods 55 are fixedly connected on the inner wall of the same cleaning ring 56, an annular brush 57 is fixedly sleeved on the outer wall of the cleaning ring 56, when the reinforcing rod 37 moves, the push rod 51 is driven to move, the push rod 51 drives the L-shaped rod 52 to move, the L-shaped rod 52 drives the connecting rod 54 to move, the connecting rod 54 drives the fixing rod 55 to move, the fixing rod 55 drives the cleaning ring 56 to move, the cleaning ring 56 drives the annular brush 57 to move, further, the ring brush 57 is reciprocated on the inner wall of the through hole 25, so that the through hole 25 is brushed, and scale is prevented from being generated in the through hole 25 to prevent the valve flap 27 from being tightly attached to the sealing groove 26.

In a preferred embodiment of the present invention, the length of the connecting rod 54 is the same as the depth of the through-hole 25, so that the annular brush 57 can completely clean the inner wall of the through-hole 25.

In a preferred embodiment of the present invention, the annular brush 57 corresponds to the through hole 25, and the outer diameter of the annular brush 57 is larger than the inner wall diameter of the through hole 25, so that the annular brush 57 contacts the inner wall of the through hole 25.

Specifically, when the invention is used, the rotating rod 34 is rotated to drive the threaded valve rod 33 to rotate, when the threaded valve rod 33 rotates, the threads on the surface extrude the threads on the inner wall of the threaded hole 32, so that the threaded valve rod 33 rotates and moves downwards, when the threaded valve rod 33 rotates and moves downwards, the valve flap 27 moves downwards, so that the valve flap 27 is clamped in the sealing groove 26, when the threaded valve rod 33 moves downwards, the bearing 35 drives the rotating ring 36 to move downwards, when the rotating ring 36 moves downwards, the reinforcing rod 37 is inserted in the insertion hole 38, so that the moving track of the reinforcing rod 37 is limited, when external impact impacts are performed on the threaded valve rod 33, impact is firstly applied on the reinforcing rod 37, the threaded valve rod 33 is prevented from being deformed by external impact through the reinforcing rod 37, so that the valve body 1 is prevented from being damaged, when the reinforcing rod 37 moves, the spring 42 pushes the sealing ring 43 to be attached to the lower surface of the fixing block 31, and then do not take place to reveal in preventing spliced eye 38, protect threaded valve rod 33 through folding gum cover 45 simultaneously, it causes the influence to threaded valve rod 33's rotation to prevent debris such as dust from getting into screw hole 32 inside, simultaneously drive push rod 51 when reinforcement bar 37 removes, push rod 51 drives L shape pole 52 and removes, L shape pole 52 drives connecting rod 54 and removes, connecting rod 54 drives dead lever 55 and removes, dead lever 55 drives clearance ring 56 and removes, clearance ring 56 drives annular brush 57 and removes, and then make annular brush 57 reciprocating motion on the inner wall of through-hole 25, and then make through-hole 25 receive and scrub, it leads to the unable inseparable laminating of valve clack 27 with seal groove 26 to prevent that the inside production scale of through-hole 25 from leading to the valve clack.

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 stop valve with the valve rod protection structure comprises a valve body (1) and is characterized in that a valve core mechanism (2) is arranged at the upper end of the valve body (1), a reinforcing mechanism (3) is arranged at the upper end of the valve core mechanism (2), a protection mechanism (4) is arranged inside the reinforcing mechanism (3), and a cleaning mechanism (5) is arranged at the lower end of the reinforcing mechanism (3).

2. The stop valve with the valve rod protection structure according to claim 1, wherein the valve core mechanism (2) comprises a water inlet pipe (21), the water inlet pipe (21) is fixedly communicated with the outer wall of one end of the valve body (1), the outer wall of the other end of the valve body (1) is fixedly communicated with a water outlet pipe (22), a partition plate (23) is fixedly connected inside the valve body (1), a valve seat (24) is fixedly connected at the center of the partition plate (23), a through hole (25) is formed at the center of the valve seat (24), a sealing groove (26) is formed in the inner wall of the upper end of the through hole (25), and a valve flap (27) is clamped inside the sealing groove (26).

3. A stop valve with a valve stem protection arrangement according to claim 1, the reinforcing mechanism (3) comprises a fixed block (31), the fixed block (31) is fixedly sleeved on the outer wall of the upper end of the valve body (1), a threaded hole (32) is formed in the center of the fixing block (31), a threaded valve rod (33) is connected with the inner thread of the threaded hole (32) in a threaded manner, the upper end of the threaded valve rod (33) is fixedly connected with a rotating rod (34), the upper end surface of the threaded valve rod (33) is rotatably connected with a rotating ring (36) through a bearing (35), the lower surface of the rotating ring (36) is fixedly connected with a plurality of reinforcing rods (37), the reinforcing rods (37) are inserted into a plurality of inserting holes (38), the inserting holes (38) are formed in the surface of the fixing block (31), and the lower ends of the reinforcing rods (37) are inserted into the same annular rotating groove (39).

4. A stop valve with a valve stem protection arrangement according to claim 1, the protection mechanism (4) comprises a plurality of fixing rings (41), the fixing rings (41) are fixedly sleeved on the surfaces of the reinforcing rods (37), springs (42) are fixedly connected to the upper surfaces of the fixing rings (41), the upper ends of the springs (42) are fixedly connected with sealing rings (43), a plurality of sealing rings (43) are clamped inside a plurality of annular clamping grooves (44), a plurality of annular clamping grooves (44) are respectively arranged on the surfaces of a plurality of reinforcing rods (37), the upper surfaces of the sealing rings (43) are attached to the upper surface of the same fixing block (31), the upper end fixedly connected with of fixed block (31) folds gum cover (45), the upper end fixed connection of folding gum cover (45) is on the lower surface of swivel (36).

5. The stop valve with the valve rod protection structure according to claim 1, wherein the cleaning mechanism (5) comprises a push rod (51), the push rod (51) is fixedly connected to one side wall of one reinforcing rod (37), the other end of the push rod (51) is fixedly connected with an L-shaped rod (52), the L-shaped rod (52) is movably sleeved inside a sealing cylinder (53), the sealing cylinder (53) is fixedly communicated with the surface of the partition plate (23), the other end of the L-shaped rod (52) is fixedly connected with a connecting rod (54), the other end of the connecting rod (54) is fixedly connected with a plurality of fixing rods (55), the other ends of the fixing rods (55) are fixedly connected to the inner wall of the same cleaning ring (56), and an annular brush (57) is fixedly sleeved on the outer wall of the cleaning ring (56).

6. A shut-off valve with a valve stem protection according to claim 5, characterized in that the length of the connecting rod (54) is the same as the depth of the through hole (25).

7. A shut-off valve with a valve stem protection according to claim 5, characterised in that the annular brush (57) corresponds to the through hole (25), the outer diameter of the annular brush (57) being longer than the inner diameter of the through hole (25).