Cast steel high-temperature ball valve with protective structure

Abstract

The utility model discloses a cast steel high-temperature ball valve with a protective structure, which relates to the field of cast steel high-temperature ball valves and comprises a cast steel high-temperature ball valve shell, a ball valve body is movably connected inside the cast steel high-temperature ball valve shell, and a lower ball valve seat is movably connected to the bottom of the cast steel high-temperature ball valve shell. The interiors of the two sides of the lower ball valve seat are in threaded connection with first fastening bolts. The top of the cast steel high-temperature ball valve shell is movably connected with an upper ball valve seat, the top of the upper ball valve seat is movably connected with a valve plate, and a valve rod is fixedly installed at the top of the valve plate. According to the cast steel high-temperature ball valve with the protection structure, the first protection cover and the second protection cover are arranged, the cast steel high-temperature ball valve is conveniently protected, a telescopic rod, a clamping rod and a clamping groove are arranged, the valve rod is conveniently limited, fixed and rapidly unlocked, and a positioning bolt, a first fastening bolt and a second fastening bolt are arranged, so that the safety of the cast steel high-temperature ball valve is improved. And the cast steel high-temperature ball valve can be conveniently and rapidly disassembled, assembled and replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cast steel high temperature ball valve technical field, concretely is a cast steel high temperature ball valve with protection structure. BACKGROUND

[0002] Cast steel high temperature ball valve is a valve specially designed for high temperature medium environment, which has the characteristics of compact structure, reliable sealing, convenient operation, high temperature resistance and easy maintenance, and is widely used in petroleum, chemical industry, metallurgy, electric power and other industrial fields.

[0003] In order to overcome the above-mentioned defects, the prior art (application number: 202322063351.4, application date: August 2, 2023, Chinese patent) discloses a ball valve with protection function, which comprises a valve body, a ball body is rotatably installed inside the valve body, a valve stem is connected to the top of the ball body, a connecting block is arranged at the top of the valve stem, a handle is fixedly installed on the outside of the connecting block through hand screw bolts, and a folding handle is fixedly installed on the top surface of the handle.

[0004] Although the prior art locks and protects the ball valve, only the handle is disassembled to realize physical isolation, no special protective cover or shell is designed, and dust, impurities and other substances from the outside world can easily enter the ball valve, which interferes with the normal operation of the ball valve, reduces the service life of the ball valve, and the handle is fixed by hand screw bolts, which needs manual operation for disassembly, takes a long time, and needs tools to assist, and cannot realize quick unlocking.

[0005] Therefore, we propose a cast steel high temperature ball valve with protection structure to solve the above problems. INVENTION CONTENTS

[0006] The utility model discloses a cast steel high temperature ball valve with protection structure, which solves the problem that the ball valve is only physically isolated by disassembling the handle in the prior art, no special protective cover or shell is designed, dust, impurities and other substances from the outside world can easily enter the ball valve, which interferes with the normal operation of the ball valve, reduces the service life of the ball valve, and the handle is fixed by hand screw bolts, which needs manual operation for disassembly, takes a long time, and needs tools to assist, and cannot realize quick unlocking.

[0007] To achieve the above object, the utility model provides the following technical scheme: A cast steel high temperature ball valve with protection structure, including cast steel high temperature ball valve casing, the inside of cast steel high temperature ball valve casing is movably connected with ball valve body, the bottom of cast steel high temperature ball valve casing is movably connected with lower ball valve seat, the inside of lower ball valve seat both sides is screwed with first fastening bolt, the top of cast steel high temperature ball valve casing is movably connected with upper ball valve seat, the top of upper ball valve seat is movably connected with valve plate, the top of valve plate is fixedly installed with valve rod, the inside of valve plate both sides is screwed with second fastening bolt, and the tail end of second fastening bolt inserts cast steel high temperature ball valve casing, the top of cast steel high temperature ball valve casing is provided with the dismounting assembly for protection, the dismounting assembly includes first protective cover and second protective cover, the inside of cast steel high temperature ball valve casing right side is fixedly installed with sealing sleeve, the outer wall of sealing sleeve is provided with the splicing assembly for replacement.

[0008] As the preferred technical scheme of the present application, the inside of the second protective cover is screwed with a limiting bolt, and the tail end of the limiting bolt penetrates the first protective cover. The inside of both the second protective cover and the first protective cover is fixedly connected with a fixed cylinder. The inside of the fixed cylinder is movably connected with a sliding plate. The inner wall of the sliding plate is fixedly connected with a clamping rod. The outer wall of the sliding plate is fixedly installed with an extension rod. The outer wall of the extension rod is sleeved with a spring.

[0009] As the preferred technical scheme of the present application, the inside of both the second protective cover and the first protective cover is staggered with an installation groove. The inside of both the second protective cover and the first protective cover is fixedly installed with an installation rod.

[0010] As the preferred technical scheme of the present application, the splicing assembly includes an installation ring plate. The inside of the left side of the installation ring plate is provided with a groove, and the groove is wrapped around the outer wall of the sealing sleeve. The right side of the installation ring plate is fixedly connected with a valve pipe. The inside of the installation ring plate is screwed with a positioning bolt, and the tail end of the positioning bolt is inserted into the cast steel high temperature ball valve casing.

[0011] As the preferred technical scheme of the present application, both the first protective cover and the second protective cover are movably connected with the cast steel high temperature ball valve casing. Both the first protective cover and the second protective cover are located on the outer wall of the valve plate. The first protective cover and the second protective cover form a full wrapping. This can effectively prevent dust, impurities, and the like from entering the cast steel high temperature ball valve.

[0012] As the preferred technical scheme of the present application, the sealing sleeve is detachably connected with the groove. The groove and the installation ring plate are integrally arranged. The positioning bolt is manually pulled out. The fixing of the installation ring plate and the cast steel high temperature ball valve casing is released. The installation ring plate connected with the valve pipe is moved outward. The groove of the installation ring plate is separated from the sealing sleeve. The dismounting of the valve pipe is completed.

[0013] As a preferred technical scheme of the present application, the clamping rod and the valve rod are movably connected, the interior of the two sides of the valve rod is provided with a clamping groove, the spring starts to play a role by the elastic force, drives the clamping rod connected with the sliding plate to reset, the clamping rod is inserted into the clamping groove in the valve rod, thereby limiting and fixing the valve rod.

[0014] Compared with the prior art, the cast steel high-temperature ball valve with the protection structure has the advantages that the first protection cover and the second protection cover are arranged, the cast steel high-temperature ball valve is conveniently protected, the telescopic rod, the clamping rod and the clamping groove are arranged, the valve rod is conveniently limited and fixed and quickly unlocked, the positioning bolt, the first fastening bolt and the second fastening bolt are arranged, the cast steel high-temperature ball valve is conveniently quickly disassembled and replaced, and specific contents are shown as follows.

[0015] 1. The first protection cover and the second protection cover are arranged, the first protection cover and the second protection cover are installed on the outer wall of the valve plate by the limiting bolt to form full wrapping, dust, impurities and the like in the outside can be effectively prevented from entering the interior of the cast steel high-temperature ball valve, interference of the substances on the normal operation of the ball valve is avoided, wear and damage of internal parts of the ball valve are reduced, the service life of the ball valve is prolonged, and the cast steel high-temperature ball valve is protected.

[0016] Further, the telescopic rod, the clamping rod and the clamping groove are arranged, the clamping rod is inserted into the clamping groove of the valve rod to limit and fix the valve rod by stretching of the telescopic rod, accidental rotation or displacement of the valve rod under the action of external force in a non-working state is prevented, or the clamping rod is separated from the clamping groove to release the fixation of the valve rod, and a worker can conveniently rotate the valve rod to make the ball valve quickly work, thereby meeting actual use requirements.

[0017] 2. The positioning bolt, the first fastening bolt and the second fastening bolt are arranged, the fixation of the mounting ring plate is released by pulling out the positioning bolt, the valve pipe is conveniently separately disassembled, the entire valve body does not need to be replaced, maintenance cost is reduced, the fixation of the lower ball valve seat is released by pulling out the first fastening bolt, thereby the ball valve seat is disassembled, the second fastening bolt is pulled out to separate from the valve plate, the valve plate and the upper ball valve seat can be sequentially disassembled, and the cast steel high-temperature ball valve is quickly disassembled and replaced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a cast steel high-temperature ball valve shell, a mounting ring plate and a valve pipe sectional structure schematic diagram of the utility model;

[0020] Figure 3 It is a front view sectional explosion structural schematic diagram of the utility model;

[0021] Figure 4 It is the partial section structure schematic view of the first protective cover of the utility model;

[0022] Figure 5 It is the partial section structure schematic view of the first protective cover of the utility model; Figure 4 It is the enlarged structure schematic view of A place in the utility model;

[0023] Figure 6 It is the partial bottom view structure schematic view of the first protective cover and the second protective cover of the utility model.

[0024] In the drawing: 1, cast steel high temperature ball valve shell; 2, ball valve body; 3, lower ball valve seat; 4, first fastening bolt; 5, upper ball valve seat; 6, valve plate; 7, valve stem; 8, second fastening bolt; 9, sealing sleeve; 10, mounting ring plate; 11, groove; 12, positioning bolt; 13, valve pipe; 14, first protective cover; 15, second protective cover; 16, limiting bolt; 17, fixing cylinder; 18, sliding plate; 19, clamping rod; 20, telescopic rod; 21, spring; 22, mounting rod; 23, mounting groove. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts fall within the protection scope of the utility model.

[0026] Please refer to Figures 1-6 The utility model provides the following technical scheme:

[0027] Embodiment one: the ball valve in the market is only physically isolated by disassembling the handle, without designing special protective cover or shell, so that dust, impurities and the like in the outside world can easily enter the ball valve, these substances cause interference to the normal operation of the ball valve, reduce the service life of the ball valve, and the handle is fixed by hand screw bolt, disassembly needs manual operation, time-consuming is longer, and needs tool auxiliary, cannot realize quick unlocking, and the cast steel high temperature ball valve with protective structure in the embodiment discloses the following technical content, can refer to the attached Figure 1 -attached Figure 6The top of the cast steel high-temperature ball valve shell 1 is provided with a protective disassembly assembly, the disassembly assembly comprises a first protective cover 14 and a second protective cover 15; the inside of the two sides of the second protective cover 15 is screw-connected with a limiting bolt 16, and the end of the limiting bolt 16 penetrates through the first protective cover 14; the inside of the two of the second protective cover 15 and the first protective cover 14 is fixedly connected with a fixed cylinder 17, the inside of the fixed cylinder 17 is movably connected with a sliding plate 18, the inner wall of the sliding plate 18 is fixedly connected with a clamping rod 19, the outer wall of the sliding plate 18 is fixedly installed with an extension rod 20, and the outer wall of the extension rod 20 is sleeved with a spring 21; the inside of the two of the second protective cover 15 and the first protective cover 14 is staggered and provided with a mounting groove 23, and the inside of the two of the second protective cover 15 and the first protective cover 14 is fixedly installed with a mounting rod 22; the two of the first protective cover 14 and the second protective cover 15 are movably connected with the cast steel high-temperature ball valve shell 1, and the two of the first protective cover 14 and the second protective cover 15 are located on the outer wall of the valve plate 6; the clamping rod 19 is movably connected with the valve rod 7, and the inside of the two sides of the valve rod 7 is provided with a clamping groove.

[0028] By manually pulling each extension rod 20 outward by the staff, the extension rod 20 drives the sliding plate 18 to slide outward in the corresponding fixed cylinder 17, since the sliding plate 18 is connected with the clamping rod 19, when the sliding plate 18 moves, the clamping rod 19 will be retracted into the fixed cylinder 17, at the same time, the movement of the sliding plate 18 will extrude the spring 21 connected therewith, so that the spring 21 is elastically deformed, stores elastic potential energy, then, manually sleeve the first protective cover 14 and the second protective cover 15 on the outer wall of the valve plate 6 connected with the cast steel high-temperature ball valve shell 1, then release the stretched extension rod 20, the spring 21 starts to play the role of resilience, drives the clamping rod 19 connected with the sliding plate 18 to reset, the clamping rod 19 is inserted into the clamping groove in the valve rod 7, thereby limiting and fixing the valve rod 7, preventing the valve rod 7 from rotating or moving accidentally under the action of external force in a non-working state, then, use each limiting bolt 16 to penetrate through the first protective cover 14 and the second protective cover 15 and fasten, so that the first protective cover 14 and the second protective cover 15 form full wrapping, which can effectively prevent external dust, impurities and the like from entering the cast steel high-temperature ball valve, avoid these substances from interfering with the normal operation of the ball valve, reduce the wear and damage of the internal parts of the ball valve, prolong the service life of the ball valve, realize the protection of the cast steel high-temperature ball valve, when the cast steel high-temperature ball valve needs to work, the staff manually pulls each extension rod 20 outward, drives the clamping rod 19 to separate from the corresponding clamping groove, releases the fixing effect on the valve rod 7, at this time, the staff can rotate the valve rod 7, so that the cast steel high-temperature ball valve starts to work.

[0029] In the embodiment, the cast steel high-temperature ball valve with the protection structure is disclosed as follows: it is convenient to quickly disassemble and replace the cast steel high-temperature ball valve, and the specific implementation process can be referred to the accompanying drawings and the specific implementation process. Figure 1 - the accompanying drawings Figure 3, including cast steel high temperature ball valve shell 1, the inside of cast steel high temperature ball valve shell 1 is movably connected with ball valve body 2, the bottom of cast steel high temperature ball valve shell 1 is movably connected with lower ball valve seat 3, the inside of the both sides of lower ball valve seat 3 is threadedly connected with first fastening bolt 4;The top of cast steel high temperature ball valve shell 1 is movably connected with upper ball valve seat 5, the top of upper ball valve seat 5 is movably connected with valve plate 6, the top of valve plate 6 is fixedly installed with valve stem 7, the inside of the both sides of valve plate 6 is threadedly connected with second fastening bolt 8, and the end of second fastening bolt 8 is inserted into cast steel high temperature ball valve shell 1;The inside of the right side of cast steel high temperature ball valve shell 1 is fixedly installed with sealing sleeve 9, the outer wall of sealing sleeve 9 is provided with splicing assembly for replacement;Splicing assembly includes installation ring plate 10, the inside of the left side of installation ring plate 10 is provided with recess 11, and recess 11 is wrapped around the outer wall of sealing sleeve 9, the right side of installation ring plate 10 is fixedly connected with valve pipe 13, the inside of installation ring plate 10 is threadedly connected with positioning bolt 12, and the end of positioning bolt 12 is inserted into cast steel high temperature ball valve shell 1;Sealing sleeve 9 and recess 11 are detachably connected, and recess 11 and installation ring plate 10 are integrally arranged.

[0030] By rotating valve stem 7 by the staff, since ball valve body 2 is connected with valve plate 6 through valve stem 7, valve stem 7 rotation drives ball valve body 2 to rotate by ninety degrees in cast steel high temperature ball valve shell 1, to realize opening or closing of the medium passage, when cast steel high temperature ball valve needs to be disassembled and repaired or replaced, the staff first removes first protective cover 14 and second protective cover 15 according to the steps of the above embodiment one, to remove the external protection of cast steel high temperature ball valve shell 1, then manually pulls out positioning bolt 12, to remove the fixation of installation ring plate 10 and cast steel high temperature ball valve shell 1, moves installation ring plate 10 connected with valve pipe 13 outward, to make recess 11 of installation ring plate 10 separate from sealing sleeve 9, to complete the disassembly of valve pipe 13, without replacing the whole valve body, to reduce the maintenance cost, then manually pulls out each first fastening bolt 4 to separate from lower ball valve seat 3, to remove the fixation of lower ball valve seat 3 and cast steel high temperature ball valve shell 1, to move lower ball valve seat 3 downward, to make it separate from cast steel high temperature ball valve shell 1, then manually pulls out each second fastening bolt 8 to separate from valve plate 6, to unlock the fixation of valve plate 6 and upper ball valve seat 5 and cast steel high temperature ball valve shell 1, to disassemble valve plate 6 and upper ball valve seat 5 in turn, to complete the separation of valve stem 7 related components, to realize the quick disassembly and replacement of cast steel high temperature ball valve.

[0031] The contents not described in detail in the specification belong to the prior art known to the person skilled in the art.

[0032] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cast steel high-temperature ball valve with a protective structure, comprising a cast steel high-temperature ball valve body (1), wherein a ball valve body (2) is movably connected inside the cast steel high-temperature ball valve body (1), and a lower ball valve seat (3) is movably connected to the bottom of the cast steel high-temperature ball valve body (1), wherein first fastening bolts (4) are threaded on both sides of the lower ball valve seat (3); Its features are: The top of the cast steel high-temperature ball valve body (1) is movably connected to an upper ball valve seat (5), the top of the upper ball valve seat (5) is movably connected to a valve plate (6), the top of the valve plate (6) is fixedly installed with a valve stem (7), the internal threads on both sides of the valve plate (6) are connected to second fastening bolts (8), and the ends of the second fastening bolts (8) are inserted into the cast steel high-temperature ball valve body (1). The top of the cast steel high-temperature ball valve body (1) is provided with a disassembly assembly for protection, the disassembly assembly including a first protective cover (14) and a second protective cover (15). A sealing sleeve (9) is fixedly installed inside the right side of the cast steel high-temperature ball valve body (1), and a splicing assembly for replacement is provided on the outer wall of the sealing sleeve (9).

2. The cast steel high-temperature ball valve with a protective structure according to claim 1, characterized in that: The second protective cover (15) has internal threaded connections of limit bolts (16) on both sides, and the ends of the limit bolts (16) penetrate the first protective cover (14). The interior of both the second protective cover (15) and the first protective cover (14) is fixedly connected to a fixing cylinder (17). The interior of the fixing cylinder (17) is movably connected to a sliding plate (18). The inner wall of the sliding plate (18) is fixedly connected to a locking rod (19). The outer wall of the sliding plate (18) is fixedly installed with a telescopic rod (20). The outer wall of the telescopic rod (20) is fitted with a spring (21).

3. A cast steel high-temperature ball valve with a protective structure according to claim 2, characterized in that: The second protective cover (15) and the first protective cover (14) have staggered mounting grooves (23) inside, and the second protective cover (15) and the first protective cover (14) have staggered mounting rods (22) inside.

4. A cast steel high-temperature ball valve with a protective structure according to claim 1, characterized in that: The splicing assembly includes a mounting ring plate (10), with a groove (11) inside the left side of the mounting ring plate (10), and the groove (11) wraps around the outer wall of the sealing sleeve (9). A valve pipe (13) is fixedly connected to the right side of the mounting ring plate (10), and a positioning bolt (12) is threaded inside the mounting ring plate (10), with the end of the positioning bolt (12) inserted into the cast steel high-temperature ball valve body (1).

5. A cast steel high-temperature ball valve with a protective structure according to claim 2, characterized in that: The first protective cover (14) and the second protective cover (15) are movably connected to the cast steel high-temperature ball valve body (1), and the first protective cover (14) and the second protective cover (15) are located on the outer wall of the valve plate (6).

6. A cast steel high-temperature ball valve with a protective structure according to claim 4, characterized in that: The sealing sleeve (9) and the groove (11) are detachably connected, while the groove (11) and the mounting ring plate (10) are integrally formed.

7. A cast steel high-temperature ball valve with a protective structure according to claim 3, characterized in that: The locking rod (19) and the valve stem (7) are movably connected, and the valve stem (7) has locking grooves on both sides.

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