Butterfly valve under high-temperature and high-pressure working conditions

Abstract

The utility model discloses a butterfly valve under high-temperature and high-pressure working conditions, and relates to the technical field of butterfly valves. The check valve comprises a valve body, a valve plate is rotationally connected in the valve body, a valve rod is fixedly connected to the top of the valve plate and rotationally penetrates through the top of the valve body, and a handle is fixed to the top of the valve rod through a bolt. The top of the valve body is fixedly connected with a supporting frame, the top of the supporting frame is in threaded connection with two positioning bolts used for limiting the rotation angle of the handle, and two penetrating sliding rods are connected between the two sides of the handle in a sliding mode. According to the utility model, after the handle is closed in place, the sliding box slides on the handle to drive the friction block to rub with the friction plate, so that a sound is made and an operator is reminded, if no sound is made, the handle is not rotated in place and is convenient for people to use, and meanwhile, the distance between the two adjusting plates can be adjusted by moving the two-way screw rod; therefore, the pushing force required by the sliding box is adjusted, and different medium pressures can be conveniently adapted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to butterfly valve technical field, especially, relate to a butterfly valve under high temperature and high pressure working condition. BACKGROUND

[0002] Butterfly valve is a kind of simple structure, opens and closes rapidly valve, and the disc-shaped valve plate (butterfly plate) is rotated to control the medium flow in pipeline.The valve plate is rotated 90 ° around the valve shaft, realizes full open, full close or flow regulation, has small volume, light weight, low flow resistance and other characteristics.Butterfly valve is divided into soft sealing (rubber, PTFE, is suitable for low pressure normal temperature) and hard sealing (metal sealing, high temperature and high pressure resistance) according to sealing form, is widely used in water treatment, petroleum chemical industry, heating ventilation and air conditioning and other fields;

[0003] The existing butterfly valve is positioned by positioning bolt or other positioning parts when being used to position the handle for full open and full close, but in the actual use process, manual operation is easy to stop rotating the handle when the handle is not rotated to the position, lacks the reminder to the operator, and is easy to cause the problem of valve plate closing not tightly, so a butterfly valve under high temperature and high pressure working condition is provided. UTILITY MODEL CONTENTS

[0004] The utility model discloses a butterfly valve under high temperature and high pressure working condition, and the handle is closed to the position, and the sliding box slides on the handle, and then drives the friction block and the friction plate to rub, so as to emit sound, and then the operator is reminded, if no sound occurs, it represents that the handle rotation is not to the position, facilitates people to use, and the bidirectional screw rod can adjust the distance between the two adjusting plates, and then the pushing strength required by sliding box is adjusted, convenient adaptation different medium pressure, solve the existing technical problem.

[0005] To solve the above technical problems, the utility model is realized through the following technical schemes:

[0006] A butterfly valve under high temperature and high pressure working condition, including: valve body, the valve body is rotationally connected with valve plate, and the top of valve plate is fixedly connected with valve rod, and the valve rod rotationally penetrates the top of valve body, and the top of valve rod is fixedly connected with handle through bolt;

[0007] The top of valve body is fixedly connected with support frame, and the top of support frame is threadedly connected with two positioning bolts for limiting the rotation angle of handle, and two sliding rods are slidingly connected between the two sides of handle and penetrate, and sliding box is fixedly connected between two sliding rods, and two springs are arranged between the two sides of handle and the inner wall of sliding box, and the spring is respectively sleeved on the circumference of sliding rod;

[0008] Multiple reminding assemblies are arranged on the two sides of handle for reminding the handle to the position.

[0009] A positioning assembly is arranged between the handle and the support frame for positioning the handle.

[0010] As a further scheme of the utility model, the reminding assembly comprises a friction sheet and a friction block, the friction sheet is fixed on one side of the handle, the friction block is fixed on the inner wall of the bottom of the handle, the sliding box slides the friction sheet and the friction block to generate friction sound, after the handle is closed in place, the sliding box slides on the handle, thereby driving the friction block and the friction sheet to rub, so that sound is generated, thereby reminding the operator, if no sound is generated, it represents that the handle rotation is not in place, which is convenient for people to use.

[0011] As a further scheme of the utility model, the friction sheet is a stainless steel sheet, and the friction block is an unpolished alumina ceramic.

[0012] As a further scheme of the utility model, the positioning assembly comprises a bent positioning frame and a plurality of positioning grooves, the positioning frame is rotationally connected to the bottom of the handle, the plurality of positioning grooves are evenly distributed on the top edge of the support frame and are distributed at right angles, one end of the positioning frame cooperates with one of the positioning grooves to keep the handle stable, and a tension spring is fixedly connected between the positioning frame and the handle.

[0013] As a further scheme of the utility model, a plurality of horizontal plates are welded on one side of the valve plate.

[0014] As a further scheme of the utility model, two symmetrical adjusting plates are slidingly connected between the two sliding rods, the springs on the two sides respectively abut against the two adjusting plates, a bidirectional screw rod is screwedly connected between the two adjusting plates, one end of the bidirectional screw rod rotationally penetrates the sliding box, a through avoiding hole is formed in one side of the handle, the bidirectional screw rod penetrates the avoiding hole, and the bidirectional screw rod and the adjusting plate are used in cooperation, so that the distance between the two adjusting plates can be adjusted by rotating the bidirectional screw rod, the pushing force required by the sliding box is adjusted, and different medium pressures can be conveniently adapted.

[0015] As a further scheme of the utility model, a bottom rod is rotationally connected to the bottom of the valve body, and the bottom rod is fixed to the bottom of the valve plate.

[0016] As a further scheme of the utility model, two limiting plates are fixedly connected to the inner wall of the valve body and abut against the valve plate when the valve plate is closed.

[0017] As a further scheme of the utility model, a positioning sleeve is fixedly connected to the bottom of the support frame through bolts, and the valve rod rotationally penetrates the positioning sleeve.

[0018] The utility model discloses, when the on -off valve body, the one end of positioning frame is held tightly to the direction of handle, and then makes the other end of positioning frame separate from the positioning groove, then handle is rotated, and handle drives valve stem and valve plate to rotate, and then the valve body switch is controlled, when valve plate is completely opened or closed, first handle and one of positioning pegs resist, and handle stops rotating, and sliding box is slid on handle, and then drive friction block and friction plate to rub, thereby emitting sound, and then the operator is reminded, if the sound does not occur, then handle rotation is not in place, convenient for people to use, keep the precision of valve flap full open full close, prevent the problem that valve plate is not closed in place, and the distance between two adjusting plates can be adjusted by rotating bidirectional screw rod, and then the pushing strength required by sliding box is adjusted, and different medium pressure is conveniently adapted.

[0019] The embodiment of the utility model has the following beneficial effects:

[0020] In the utility model, the sliding box is slid on the handle after the handle is closed in place, and then drive friction block and friction plate to rub, thereby emitting sound, and then the operator is reminded, if the sound does not occur, then handle rotation is not in place, convenient for people to use;

[0021] In the utility model, the distance between two adjusting plates can be adjusted by rotating bidirectional screw rod, and then the pushing strength required by sliding box is adjusted, and different medium pressure is conveniently adapted;

[0022] In the utility model, the sliding box is slid on the handle after the handle is closed in place, and then drive friction block and friction plate to rub, thereby emitting sound, and then the operator is reminded, if the sound does not occur, then handle rotation is not in place, convenient for people to use, and the distance between two adjusting plates can be adjusted by rotating bidirectional screw rod, and then the pushing strength required by sliding box is adjusted, and different medium pressure is conveniently adapted.

[0023] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. DRAWINGS

[0024] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be to the embodiment description needed to use the drawing briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0025] Figure 1 It is the first kind of perspective three-dimensional structure schematic diagram of an embodiment of the utility model;

[0026] Figure 2 The second view angle three-dimensional structure schematic view of one embodiment of the utility model;

[0027] Figure 3 The sliding box cross section structure schematic view of one embodiment of the utility model;

[0028] Figure 4 The Figure 3 A point amplification structure schematic view of the utility model.

[0029] In the figure: 1, valve body; 2, valve plate; 3, valve rod; 4, handle; 5, support frame; 6, positioning bolt; 7, positioning sleeve; 8, limiting plate; 9, bottom rod; 10, positioning frame; 11, positioning groove; 12, tension spring; 13, cross plate; 14, sliding box; 15, sliding rod; 16, spring; 17, friction plate; 18, friction block; 19, adjusting plate; 20, bidirectional screw rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] In the description of the utility model, it is understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0032] In order to keep the following description of the embodiments of the utility model clear and concise, the utility model omits the detailed description of known functions and known components.

[0033] Embodiment one

[0034] Please refer to Figures 1-4 In the embodiment, a butterfly valve is provided, which comprises a valve body 1, the valve body 1 is rotationally connected with a valve plate 2, the top of the valve plate 2 is fixedly connected with a valve rod 3, the valve rod 3 rotationally penetrates the top of the valve body 1, the top of the valve rod 3 is fixedly connected with a handle 4 through bolts, the handle 4 drives the valve rod 3 and the valve plate 2 to rotate by rotating, thereby controlling the opening and closing of the valve body 1;

[0035] The top of the valve body 1 is fixedly connected with a support frame 5, the top of the support frame 5 is threadedly connected with two positioning pins 6 for limiting the rotation angle of the handle 4, two sliding rods 15 are slidingly connected between the two sides of the handle 4, the two sliding rods 15 are fixedly connected with a sliding box 14, two springs 16 are arranged between the two sides of the handle 4 and the inner wall of the sliding box 14, the spring 16 is sleeved on the circumference of the sliding rod 15, and the sliding box 14 slides after the handle 4 is moved in place, so that the operator can perceive;

[0036] A plurality of reminding components are arranged on the two sides of the handle 4 for reminding the handle 4 to be in place.

[0037] A positioning component is arranged between the handle 4 and the support frame 5 for positioning the handle 4.

[0038] In the utility model, the reminding component comprises a friction plate 17 and a friction block 18, the friction plate 17 is fixed on one side of the handle 4, the friction block 18 is fixed on the bottom inner wall of the handle 4, the sliding box 14 slides the friction plate 17 and the friction block 18 to rub and make a sound, when the valve plate 2 is completely opened or closed, first, the handle 4 abuts against one of the positioning pins 6, the handle 4 stops rotating, simultaneously, the sliding box 14 slides on the handle 4, and then drives the friction block 18 to rub the friction plate 17, so that the sound is emitted, and then the operator is reminded, if no sound is generated, it represents that the handle 4 is not rotated in place, and the utility model is convenient for people to use.

[0039] In particular, the friction plate 17 is a stainless steel plate, and the friction block 18 is unpolished alumina ceramic, and the stainless steel plate and the unpolished alumina ceramic rub to generate sound, reminding the operator.

[0040] The application can be used in the butterfly valve field, and can also be used in other fields applicable to the application.

[0041] Embodiment two

[0042] On the basis of embodiment one, reference is made to the attached Figures 1-4 A butterfly valve under high temperature and high pressure working conditions: applied to the butterfly valve field.

[0043] In the utility model, the positioning component comprises a bent positioning frame 10 and a plurality of positioning grooves 11, the positioning frame 10 is rotationally connected to the bottom of the handle 4, the plurality of positioning grooves 11 are evenly distributed on the top edge of the support frame 5 and are distributed at right angles, one end of the positioning frame 10 cooperates with one of the positioning grooves 11 to keep the handle 4 stable, a tension spring 12 is fixedly connected between the positioning frame 10 and the handle 4, the one end of the positioning frame 10 is gripped in the direction of the handle 4, so that the other end of the positioning frame 10 is separated from the positioning groove 11, so that the valve plate 2 can be rotated, the positioning frame 10 is released, and the angle of the valve plate 2 can be kept stable.

[0044] Especially, a plurality of horizontal plates 13 are welded on one side of the valve plate 2, the horizontal plates 13 increase the pressure resistance of the valve plate 2, and prevent the valve plate 2 from deforming under high temperature and high pressure.

[0045] It should be noted that the two sliding rods 15 are slidably connected with two symmetrically arranged adjusting plates 19, the two adjusting plates 19 are in abutment with the two springs 16 respectively, the two adjusting plates 19 are threadedly connected with a bidirectional screw rod 20, one end of the bidirectional screw rod 20 is rotatably penetrated through the sliding box 14, a through avoiding hole is formed in one side of the handle 4, the bidirectional screw rod 20 penetrates through the avoiding hole, and rotation of the bidirectional screw rod 20 can adjust the distance between the two adjusting plates 19, so that the pushing force required by the sliding box 14 is adjusted, and different medium pressures can be conveniently adapted.

[0046] In the utility model, the bottom of the valve body 1 is rotatably connected with a bottom rod 9, the bottom rod 9 is fixed with the bottom of the valve plate 2, and the stability of the rotation of the valve plate 2 is increased through the bottom rod 9.

[0047] Especially, the inner wall of the valve body 1 is fixedly connected with two limiting plates 8 abutting when the valve plate 2 is closed, and the limiting plates 8 can increase the sealing effect between the valve plate 2 and the valve body 1.

[0048] In the utility model, the bottom of the supporting frame 5 is fixedly connected with a positioning sleeve 7 through bolts, the valve rod 3 is rotatably penetrated through the positioning sleeve 7, and the positioning sleeve 7 increases the stability of the rotation of the valve rod 3.

[0049] The drawings in the specification of the present application are only of a schematic nature, and the size and shape of each component shown in the drawings are not actual limits, but only a kind of schematic representation.In actual implementation process, according to specific needs and actual situation, each component can be reasonably configured and adjusted

[0050] It should be noted that, in the description of the specification, the description such as "first", "second" and the like is only used to distinguish each feature, and does not have actual order or pointing meaning, and the present application is not limited thereto.

[0051] In the description of the specification, the description of the reference terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model.In the specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A butterfly valve for high temperature and high pressure conditions, characterized in that, include: A valve body (1) is rotatably connected to a valve plate (2), and a valve stem (3) is fixedly connected to the top of the valve plate (2). The valve stem (3) rotatably passes through the top of the valve body (1), and a handle (4) is fixed to the top of the valve stem (3) by bolts. The top of the valve body (1) is fixedly connected to a support frame (5). The top of the support frame (5) is threaded with two positioning bolts (6) for limiting the rotation angle of the handle (4). Two through slide rods (15) are slidably connected between the two sides of the handle (4). A sliding box (14) is fixedly connected between the two slide rods (15). Two springs (16) are provided between the two sides of the handle (4) and the inner wall of the sliding box (14). The springs (16) are respectively sleeved on the circumference of the slide rods (15). Multiple reminder components are respectively set on both sides of the handle (4) for reminding the handle (4) to be in position; A positioning component is disposed between the handle (4) and the support frame (5) for positioning the handle (4).

2. The butterfly valve under high temperature and high pressure conditions as described in claim 1, characterized in that, The reminder component includes a friction plate (17) and a friction block (18). The friction plate (17) is fixed to one side of the handle (4), and the friction block (18) is fixed to the bottom inner wall of the handle (4). The sliding box (14) slides the friction plate (17) and the friction block (18) to rub and produce sound.

3. The butterfly valve under high temperature and high pressure conditions as described in claim 2, characterized in that, The friction plate (17) is a stainless steel plate, and the friction block (18) is an unpolished alumina ceramic.

4. The butterfly valve under high temperature and high pressure conditions as described in claim 1, characterized in that, The positioning component includes a bent positioning frame (10) and multiple positioning slots (11). The positioning frame (10) is rotatably connected to the bottom of the handle (4). The multiple positioning slots (11) are evenly distributed on the top edge of the support frame (5) and are distributed at right angles. One end of the positioning frame (10) cooperates with one of the positioning slots (11) to keep the handle (4) stable. A tension spring (12) is fixedly connected between the positioning frame (10) and the handle (4).

5. The butterfly valve under high temperature and high pressure conditions as described in claim 1, characterized in that, Multiple horizontal plates (13) are welded to one side of the valve plate (2).

6. The butterfly valve under high temperature and high pressure conditions as described in claim 2, characterized in that, Two symmetrically arranged adjusting plates (19) are slidably connected between the two sliding rods (15). The springs (16) on both sides abut against the two adjusting plates (19) respectively. A double-acting screw (20) is threaded between the two adjusting plates (19). One end of the double-acting screw (20) rotates through the sliding box (14). A through-hole is provided on one side of the handle (4). The double-acting screw (20) passes through the through-hole.

7. The butterfly valve under high temperature and high pressure conditions as described in claim 1, characterized in that, The bottom of the valve body (1) is rotatably connected to a bottom rod (9), which is fixed to the bottom of the valve plate (2).

8. The butterfly valve under high temperature and high pressure conditions as described in claim 1, characterized in that, The inner wall of the valve body (1) is fixedly connected to two limiting plates (8) that abut against the valve plate (2) when it is closed.

9. The butterfly valve under high temperature and high pressure conditions as described in claim 1, characterized in that, The bottom of the support frame (5) is fixed with a positioning sleeve (7) by bolts, and the valve stem (3) rotates through the positioning sleeve (7).

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